Yamazaki Mazak Corporation

Japan

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IPC Class
B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards 20
B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools 15
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding 12
G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia 11
G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form 10
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Status
Pending 30
Registered / In Force 168
Found results for  patents
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1.

MACHINING SIMULATION APPARATUS, MACHINE TOOL, MACHINE TOOL SYSTEM, AND MACHINING SIMULATION METHOD

      
Application Number 18973131
Status Pending
Filing Date 2024-12-09
First Publication Date 2025-04-10
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Oshima, Yuji
  • Shioi, Yu
  • Yamamoto, Mikihito
  • Koike, Shunsuke
  • Katayama, Takuro
  • Sumida, Yasuharu

Abstract

A machining simulation apparatus includes a memory and a processor. The memory is configured to store a plurality of constituent models, a plurality of holding unit models, a workpiece model, and a machining program. The processor is configured to set a specific tool model, select a specific holding unit model among the plurality of holding unit models, calculate a recommendation value of a protrusion length of the specific tool model with respect to the specific holding unit model, create an assembly model in which the specific tool model and the specific holding unit model are combined such that the protrusion length is either the recommendation value or a corrected value that is calculated by correcting the recommendation value, and virtually execute the machining program in order to determine whether the assembly model abnormally interferes with the workpiece model or any of the plurality of constituent models.

IPC Classes  ?

  • G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
  • B23Q 15/20 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece

2.

NUMERICAL CONTROLLER, NUMERICAL CONTROL MACHINE TOOL, MACHINING PROGRAM GENERATION DEVICE, AND MACHINING PROGRAM GENERATION METHOD

      
Application Number 18863655
Status Pending
Filing Date 2022-07-14
First Publication Date 2025-04-03
Owner
  • Mitsubishi Electric Corporation (Japan)
  • Yamazaki Mazak Corporation (Japan)
Inventor
  • Fujita, Tomoya
  • Kubo, Takeshi
  • Kinoshita, Hiroyuki
  • Matsuno, Junji
  • Hibino, Kohei
  • Hirao, Takuya
  • Iseki, Akira

Abstract

A numerical controller includes: a model holding unit that holds a machine model, the machine model being a model that simulates deformation of a mechanical structure accompanying motion of the mechanical structure in axial directions and representing an error amount as an amount of displacement of a tool; a machining error estimation unit that estimates an error direction and the error amount in the error direction on the basis of axis data that is data on drive of a drive mechanism and the machine model, the error direction being a direction in which displacement of the tool occurs among the axial directions; and a correction amount arithmetic unit that selects one or more of the axes subject to correction, and performs arithmetic to find a correction amount used for correction of a command to be output to the drive mechanism for the axis selected.

IPC Classes  ?

  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

3.

MACHINING SIMULATION APPARATUS, NUMERICALLY CONTROLLED LATHE, MACHINE TOOL SYSTEM, AND METHOD FOR MACHINING WORKPIECE

      
Application Number 18977832
Status Pending
Filing Date 2024-12-11
First Publication Date 2025-03-27
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Saka, Kotaro
  • Koike, Shunsuke
  • Katayama, Takuro

Abstract

A machining simulation apparatus includes a processor and a communication circuit. The processor is configured to set a position of a program origin, that is an origin on a machining simulation coordinate system of a numerically controlled lathe, based on a machine model origin on the machining simulation coordinate system, a jaw model that is a shape model of a plurality of jaws mounted on a chuck of the numerically controlled lathe, and a workpiece model that is a shape model of a workpiece to be gripped by the plurality of jaws. The machine model origin corresponds to a machine origin of the numerically controlled lathe. The processor is configured to execute the machining program using the program origin as a reference position to virtually machine the workpiece model. The communication circuit is configured to transmit data indicating the position of the program origin to the numerically controlled lathe.

IPC Classes  ?

  • G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine

4.

SPINDLE DEVICE FOR MACHINE TOOL, AND MACHINE TOOL

      
Application Number JP2023033487
Publication Number 2025/057354
Status In Force
Filing Date 2023-09-14
Publication Date 2025-03-20
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Sato, Kimihiko
  • Oka, Takayuki
  • Tanaka, Mayato

Abstract

This spindle device for a machine tool is equipped with: a rotating body having a posterior end section and a distal end section that supports a tool; a bearing comprising an inner ring and an outer ring; a housing for supporting the rotating body via the bearing so as to be rotatable about a first axis; a supply flow passage for supplying a mixed fluid containing oil and air to the bearing; and a recovery flow passage for recovering oil that has passed through the bearing. The rotating body comprises: a first portion that supports the inner ring and has a first outer peripheral surface; a second portion that has a second outer peripheral surface of a smaller diameter than that of the first outer peripheral surface and that is arranged further to a first direction side than the first portion; and a stepped surface connecting the first outer peripheral surface and the second outer peripheral surface. The housing comprises: a third portion supporting the outer ring; and a fourth portion defining an annular accommodation space which receives oil from a first gap between the first portion and the third portion. The fourth portion has: an opening through which oil is guided from the annular accommodation space to the recovery flow passage; and an annular protrusion that faces both the stepped surface and the annular accommodation space and protrudes out in a direction away from the first axis.

IPC Classes  ?

  • B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
  • B23Q 11/12 - Arrangements for cooling or lubricating parts of the machine

5.

DRAW TUBE DRIVE MECHANISM, SPINDLE UNIT, AND MACHINE TOOL

      
Application Number 18966131
Status Pending
Filing Date 2024-12-03
First Publication Date 2025-03-20
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Sano, Katsuki
  • Eboshi, Koichi

Abstract

A draw tube drive mechanism includes a draw tube movable along a first axis of a rotation shaft, a moving member movable substantially perpendicularly to the first axis, a first link rotatably connected to the moving member via a first pin, a third link rotatably connected to the first link via a third pin to receive a force from the moving member and transmit the force to the draw tube, and a second link rotatably connected to the first link via a second pin and rotatably connected to the support via the fourth pin. The second pin is provided between the first and third pins. The first to third pins are arranged substantially on a straight line. Each of a distance between the first and second pins and a distance between the second and third pins is substantially equal to a distance between the second and fourth pins.

IPC Classes  ?

  • B23B 31/20 - Longitudinally-split sleeves, e.g. collet chucks

6.

SPINDLE LUBRICATION DEVICE FOR MACHINE TOOL, MACHINE TOOL, AND METHOD FOR USING MACHINE TOOL

      
Application Number JP2023033488
Publication Number 2025/057355
Status In Force
Filing Date 2023-09-14
Publication Date 2025-03-20
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Sato, Kimihiko
  • Oka, Takayuki
  • Tanaka, Mayato

Abstract

This spindle lubrication device for a machine tool comprises: a rotating body that holds a tool; a plurality of bearings; a housing; a mixed fluid supply device; and a recovery device that recovers an oil-containing fluid. The recovery device is equipped with a plurality of recovery flow paths, a plurality of ejectors, and a plurality of flow rate control valves. The plurality of ejectors include: a first ejector that suctions a first oil-containing fluid from a first recovery flow path by generating a negative pressure using first air supplied from a first air flow path; and a second ejector that suctions a second oil-containing fluid from a second recovery flow path by generating a negative pressure using second air supplied from a second air flow path. The plurality of flow rate control valves include: a first flow rate control valve that adjusts the flow rate of the first air supplied from the first air flow path to the first ejector; and a second flow rate control valve that adjusts the flow rate of the second air supplied from the second air flow path to the second ejector.

IPC Classes  ?

  • B23Q 11/12 - Arrangements for cooling or lubricating parts of the machine
  • B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements

7.

MACHINE TOOL, MACHINE TOOL SYSTEM, PROGRAM, MACHINE TOOL CONTROL METHOD, AND PROGRAM GENERATION METHOD

      
Application Number JP2023031014
Publication Number 2025/046708
Status In Force
Filing Date 2023-08-28
Publication Date 2025-03-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yamamoto, Yuuki
  • Matsui, Jun
  • Matsuzawa, Hiroaki
  • Sumida, Yasuharu
  • Yamaguchi, Keita

Abstract

This machine tool control method comprises: causing a machine tool to read a machining program containing a program code that indicates an operation to be performed by the machine tool on a workpiece and/or to be performed on at least one implement and containing additional information that at least includes cutting information obtained from a cutout portion which results from exclusion of a product shape from a workpiece shape; and, when the machine tool executes said operation, controlling the machine tool so as to activate, on the basis of the cutting information, at least one peripheral device that is among a plurality of devices in the machine tool and that is other than a device for operating the workpiece and a device for operating said at least one implement.

IPC Classes  ?

  • G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
  • B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work

8.

PROCESSING SYSTEM, MACHINE TOOL SYSTEM, AND WORKPIECE PROCESSING METHOD

      
Application Number JP2023031487
Publication Number 2025/046787
Status In Force
Filing Date 2023-08-30
Publication Date 2025-03-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Maruta, Kazumasa
  • Matsuda, Tatsuya
  • Baba, Hirotaka

Abstract

This processing system is provided with: a robot that loads a workpiece into a machine tool; a robot control device; a numerical control device; and a machine tool. When the weight of the workpiece is defined as a first weight, the robot control device sets workpiece weight data indicating the first weight as one of the control parameters of the robot, and controls the loading operation of the robot on the basis of the control parameter and loading path data specifying the loading path of the workpiece. The numerical control device transmits the work weight data or first basic data for calculating the first weight to the robot control device, and generates an operation command by executing a processing program. The machine tool processes the workpiece into a product on the basis of the operation command.

IPC Classes  ?

  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
  • B23Q 7/04 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
  • B23Q 15/20 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
  • G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
  • G05B 19/416 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration

9.

CHUCK CLAW, METHOD FOR PRODUCING CHUCK CLAW, METHOD FOR PROCESSING WORKPIECE, METHOD FOR REPAIRING CHUCK CLAW, HYBRID MACHINE TOOL, AND PROGRAM

      
Application Number JP2023029049
Publication Number 2025/032751
Status In Force
Filing Date 2023-08-09
Publication Date 2025-02-13
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kitamoto, Shinichiro
  • Suzuki, Atsushi
  • Ouchi, Seigo

Abstract

This chuck claw comprises: a base part that is attached to a chuck body; a claw body; and a metal layer that is added to the claw body and that contacts a workpiece. A first metal material which constitutes the metal layer has a lower thermal conductivity than a second metal material which constitutes the claw body.

IPC Classes  ?

  • B23B 31/10 - Chucks characterised by the retaining or gripping devices or their immediate operating means
  • B23P 23/04 - Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
  • B23K 26/342 - Build-up welding
  • B33Y 80/00 - Products made by additive manufacturing

10.

WORKPIECE MACHINING METHOD, MACHINE TOOL, AND PROGRAM

      
Application Number JP2023024908
Publication Number 2025/009088
Status In Force
Filing Date 2023-07-05
Publication Date 2025-01-09
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hiramatsu, Hiroki
  • Adachi, Masatoshi

Abstract

The present invention provides a workpiece machining method comprising: a step for preparing a workpiece having a plate section that includes a base material and a first coating layer covering at least a portion of the base material; and a step for burring the plate section. If the direction from the base material to the first coating layer is defined as a first direction, the step for burring the plate section includes the formation of a through-hole and a flange in a first region of the plate section by moving a rotating burring tool in the first direction while rotating. Before the step for burring the plate section, a step for removing the first coating layer from the first region of the plate section is performed.

IPC Classes  ?

  • B21D 19/08 - Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
  • B21C 37/29 - Making branched pieces, e.g. T-pieces
  • B21D 28/10 - Incompletely punching in such a manner that the parts are still coherent with the work
  • B21D 28/24 - Perforating, i.e. punching holes
  • B23K 26/36 - Removing material
  • B26F 1/16 - Perforating by tool or tools of the drill type

11.

COOLANT SUPPLY EQUIPMENT, MACHINE TOOL, METHOD OF SUPPLYING COOLANT TO MACHINE TOOL

      
Application Number 18823687
Status Pending
Filing Date 2024-09-04
First Publication Date 2024-12-26
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Nishi, Hironori
  • Okuda, Toshihito
  • Iseki, Akira

Abstract

A method of supplying a coolant to a machine tool includes reading, from a machining program, a called code of at least one coolant assignment code, each of the at least one coolant assignment code being to instruct to open or close a plurality of valves provided in a plurality of coolant supply conduits, respectively, the plurality of coolant supply conduits being installed in the machine tool to be connected to a plurality of nozzles, each of the at least one coolant assignment code being to instruct a degree of discharge of the coolant from a pump to the plurality of nozzles. The opening and closing of the plurality of valves are controlled based on the called code. The pump is controlled to discharge the coolant by the degree of discharge based on the called code.

IPC Classes  ?

  • B23Q 11/10 - Arrangements for cooling or lubricating tools or work
  • G05D 7/06 - Control of flow characterised by the use of electric means

12.

LASER PROCESSING METHOD, LASER PROCESSING DEVICE, AND PROGRAM

      
Application Number JP2023022217
Publication Number 2024/257298
Status In Force
Filing Date 2023-06-15
Publication Date 2024-12-19
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kageyama, Keisuke
  • Shimamoto, Kazuya
  • Ichino, Kentaro
  • Nakanishi, Tetsuya

Abstract

This laser processing method includes: a step for placing a plate material on a support member; a step for processing the plate material by irradiating the plate material placed on the support member with a laser; a step for detaching the processed plate material from the support member; and a step for removing, from the support member, dross adhering to the support member due to the irradiation of the plate material with the laser, by bringing the dross into contact with a tool in a rotating state.

IPC Classes  ?

  • B23K 26/38 - Removing material by boring or cutting
  • B23K 26/70 - Auxiliary operations or equipment

13.

FRICTION STIR WELDING TOOL, FRICTION STIR WELDING APPARATUS, AND FRICTION STIR WELDING METHOD

      
Application Number 18810524
Status Pending
Filing Date 2024-08-21
First Publication Date 2024-12-12
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Matsubara, Eiji
  • Minatani, Masayasu
  • Niwa, Kentaro

Abstract

A friction stir welding tool includes a shoulder having one end which is configured to be in contact with a workpiece, and a probe provided at the one end to protrude from the one end to a tip end of the probe along a rotation axis. The probe includes a chamfered portion, a spiral groove portion, and an inclined face provided on an end face of the tip end of the probe. The spiral groove portion and the chamfered portion are alternately provided in a circumferential direction on an outer circumferential surface. The spiral groove portion includes a plurality of grooves provided spirally around the rotation axis such that the plurality of grooves approaches the one end along the rotation direction. The inclined face is continuous with the chamfered portion and approaching the one end in the rotation direction.

IPC Classes  ?

  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

14.

FRICTION STIR WELDING METHOD, AUTOMOBILE COMPONENT MANUFACTURING METHOD, MACHINE TOOL, AND PROGRAM

      
Application Number JP2023020872
Publication Number 2024/252493
Status In Force
Filing Date 2023-06-05
Publication Date 2024-12-12
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsubara, Eiji
  • Minatani, Masayasu
  • Niwa, Kentaro
  • Kira, Yoshihiro

Abstract

A first workpiece and a second workpiece are friction stir welded, the first workpiece having a recess defined by a plurality of surfaces including a first surface in which the height gradually decreases in a first direction and a second surface in which the height gradually increases in the first direction. The friction stir welding method includes: moving a friction stir welding tool in a second direction so as to follow the change in height of the first surface while moving the friction stir welding tool in the first direction, wherein the depth direction of the recess is defined as the second direction; and moving the friction stir welding tool in a third direction so as to follow the change in height of the second surface while moving the friction stir welding tool in the first direction, wherein the direction opposite the second direction is defined as the third direction. Further, in the friction stir welding method, the position of the friction stir welding tool is controlled so that fluctuations in an axial load received by the friction stir welding tool from the first workpiece and the second workpiece is suppressed.

IPC Classes  ?

  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

15.

MACHINE TOOL, TOOL HOLDER, AND METHOD OF MACHINING WORKPIECE

      
Application Number 18810527
Status Pending
Filing Date 2024-08-21
First Publication Date 2024-12-12
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Yoshida, Seiichi
  • Hattori, Atsushi
  • Fujiwara, Yoshihiko

Abstract

A machine tool includes a rotation device, a tool holder, and a power feeding actuator. The tool holder is configured to be rotated with a tool about a first axis. A power receiver is provided in an outer circumferential edge region of the tool holder. At least one sensor is electrically connected to the power receiver. The power feeding actuator is configured to supply electric power to the tool holder via the power receiver. The power feeding actuator includes a power feeder configured to supply the electric power to the power receiver, and a first mover configured to move the power feeder between a power feeding position and a retracted position. The power feeder is configured to supply the electric power to the power receiver at the power feeding position. The power feeder is not configured to supply the electric power to the power receiver at the retracted position.

IPC Classes  ?

  • B23Q 3/155 - Arrangements for automatic insertion or removal of tools

16.

ADDITIVE MANUFACTURING METHOD, ADDITIVE MANUFACTURING SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM

      
Application Number 18813026
Status Pending
Filing Date 2024-08-23
First Publication Date 2024-12-12
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Ouchi, Seigo
  • Suzuki, Atsushi
  • Ishibashi, Kazuhiro

Abstract

An additive manufacturing method includes cutting a cutting region in a workpiece to heat the workpiece so that a temperature of an additive manufacturing region which is in the cutting region becomes a preheating lower limit temperature or above, and adding melted metal to the additive manufacturing region whose temperature has been a preheating lower limit temperature or above.

IPC Classes  ?

  • B23K 9/235 - Preliminary treatment
  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 9/095 - Monitoring or automatic control of welding parameters
  • B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
  • B24D 5/12 - Cut-off wheels
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
  • B33Y 40/10 - Pre-treatment
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

17.

LASER-BEAM WORKING MACHINE AND LASER-BEAM MACHINING METHOD

      
Application Number 18784950
Status Pending
Filing Date 2024-07-26
First Publication Date 2024-11-21
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kageyama, Keisuke
  • Shimamoto, Kazuya
  • Nakanishi, Tetsuya
  • Hachiya, Keita

Abstract

A laser-beam working machine includes a laser head rotatable around a main axis and movable along the main axis, a first chuck configured to irradiate a laser beam to the workpiece, and a second chuck provided between the laser head and the first chuck along the main axis to be rotatable around the main axis. The first chuck includes a grip configured to hold a workpiece rotatably around the main axis. The second chuck includes a plurality of guide rollers provided around the main axis to form an opening between the plurality of guide rollers through which the workpiece is configured to pass through. The plurality of guide rollers is configured to move toward and away from the main axis to change a size of the opening so that the plurality of guide rollers guides the workpiece along the main axis and the grip passes through the opening.

IPC Classes  ?

  • B23K 26/08 - Devices involving relative movement between laser beam and workpiece
  • B23K 37/053 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical workClamping devices therefor
  • B23K 101/06 - Tubes

18.

MACHINE TOOL AND METHOD OF HANDLING MACHINE TOOL

      
Application Number 18743111
Status Pending
Filing Date 2024-06-14
First Publication Date 2024-10-03
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Tanaka, Naoya
  • Suzuki, Takeshi
  • Hasegawa, Teppei
  • Matsumoto, Masatoshi

Abstract

A machine tool includes a table, a tool support, a mover, a first wall, a first cover, and a first support. The table is configured to support a workpiece and configured to move in a first direction and a second direction opposite to the first direction. The tool support is configured to support a tool with which the workpiece is machined. The mover is configured to move the table in the first direction and the second direction. The first wall has a first opening and is provided on a side of the first direction with respect to the tool support. The first cover protrudes from the first wall in the first direction through the first opening. The first support supports the first cover such that the first cover is rotatable around an axis of the first support.

IPC Classes  ?

  • B23Q 9/00 - Arrangements for supporting or guiding portable metal-working machines or apparatus
  • B23Q 1/01 - Frames, beds, pillars or like membersArrangement of ways

19.

TABLE DRIVE DEVICE, MACHINE TOOL, AND WORKPIECE PROCESSING METHOD

      
Application Number JP2023011057
Publication Number 2024/195015
Status In Force
Filing Date 2023-03-22
Publication Date 2024-09-26
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Sato, Kimihiko
  • Ogawa, Yukio
  • Sakai, Nobuhiro

Abstract

This table drive device comprises: a table device having a table that supports a workpiece; a support base that supports the table device; a first motor that has a first portion in contact with the support base and a second portion disposed at a position farther from the support base than the first portion, and that moves the table device relative to the support base; and a cooling device that cools the first motor. The cooling device has: a fan that imparts momentum to air; a supply duct for supplying air to the first portion of the first motor; and an exhaust duct for expelling the air from the periphery of the second portion of the first motor.

IPC Classes  ?

  • B23Q 11/12 - Arrangements for cooling or lubricating parts of the machine
  • H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

20.

MACHINE TOOL, METHOD FOR MACHINE TOOL TO DETECT CONTACT BETWEEN GRINDSTONE AND WORKPIECE, AND COMPUTER-READABLE STORAGE MEDIUM

      
Application Number 18666828
Status Pending
Filing Date 2024-05-17
First Publication Date 2024-09-12
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Yamamoto, Yuki
  • Mori, Yosuke

Abstract

A machine tool includes a tool holder configured to hold a grindstone. A workpiece holder is configured to hold a workpiece. At least one actuator is configured to move the tool holder in a movement direction relative to the workpiece holder. A motor is different from the at least one actuator and is configured to move one holder out of the tool holder and the workpiece holder along a control axis. Actuator control circuitry is configured to control the at least one actuator to move the tool holder in the movement direction. Motor control circuitry is configured to control the motor to control the one holder to be stationary in a direction along the control axis. Contact detection circuitry is configured to detect a contact between the grindstone and the workpiece based on a change in a control value of the motor.

IPC Classes  ?

  • B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
  • B24B 41/00 - Component parts of grinding machines or devices, such as frames, beds, carriages or headstocks
  • B24B 41/06 - Work supports, e.g. adjustable steadies

21.

LATHE, TURNING SYSTEM, AND METHOD FOR ESTIMATING POSITION OF LATHE EDGE

      
Application Number JP2023002668
Publication Number 2024/157463
Status In Force
Filing Date 2023-01-27
Publication Date 2024-08-02
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Fukuta, Kenji
  • Tamura, Youji

Abstract

This lathe comprises: a tool holder having a holder reference point, it being possible to attach a tool having an edge thereto; a tool post including a plurality of attachment surfaces, the tool post having a tool-post origin point; and a numeric value control device provided with a memory and a processor. The memory stores a first first-direction distance between the tool-post origin point and the holder reference point of the tool holder when a mounting surface to which the tool holder is mounted, from among the plurality of attachment surfaces, is positioned at an indexing position and a tool being attached is attached to the tool holder. The processor: acquires an identifier of the tool being attached; acquires a second first-direction distance from a storage device in which is stored a first correspondence relationship between identifiers of candidate tools that can be attached to the tool holder and second first-direction distances between the holder reference point and edges when the mounting surface is positioned at the indexing position and the candidate tools are attached to the tool holder, the second first-direction distance corresponding to the candidate-tool identifier matching the identifier of the tool being attached; and estimates a third first-direction distance between the blade-post origin point and the edge of the tool being attached on the basis of the second distance and the first distance.

IPC Classes  ?

  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
  • B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
  • B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
  • B23Q 15/24 - Control or regulation of position of tool or workpiece of linear position
  • B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work

22.

WORKPIECE SUPPORT AND MACHINE TOOL

      
Application Number 18581403
Status Pending
Filing Date 2024-02-20
First Publication Date 2024-06-13
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kimura, Jojiro
  • Yamane, Hiroshi
  • Kondo, Hiroshi
  • Miyashita, Yuta

Abstract

A workpiece support includes a rotating shaft configured to support a workpiece at a leading end portion, a second support supporting the rotating shaft rotatably about a first axis and configured to move the rotating shaft along the first axis, a first support provided between the tool and the second support along the first axis and including a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted, and an attachment provided in contact with an outer surface of the leading end portion of the rotating shaft. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. At least a part of the attachment is displaceable in a direction away from the first axis.

IPC Classes  ?

23.

WORKPIECE SUPPORT, MACHINE TOOL, AND METHOD OF USING MACHINE TOOL

      
Application Number 18583859
Status Pending
Filing Date 2024-02-22
First Publication Date 2024-06-13
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kimura, Jojiro
  • Yamane, Hiroshi
  • Kondo, Hiroshi
  • Miyashita, Yuta

Abstract

A workpiece support includes a rotating shaft, a second support, a first support, and an air supplier. The rotating shaft is configured to support a workpiece at the leading end portion. The second support supports the rotating shaft rotatably about a first axis of the rotating shaft. The first support is provided between a tool and the second support along the first axis and has a through hole into which a guide bushing unit is configured to be inserted and into which the leading end portion of the rotating shaft is configured to be inserted. The guide bushing unit is configured to support the workpiece when the guide bushing unit is in the through hole. An ejection opening is provided on an inner circumferential surface of the through hole. The air supplier is configured to supply air to the first support via the ejection opening.

IPC Classes  ?

  • B23B 3/04 - Turning-machines in which the workpiece is rotated by means at a distance from the headstock
  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods

24.

MACHINE TOOL, DIAGNOSTIC TOOL, AND METHOD FOR DIAGNOSING MACHINE TOOL

      
Application Number JP2022043881
Publication Number 2024/116258
Status In Force
Filing Date 2022-11-29
Publication Date 2024-06-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nagasaka, Satoshi
  • Mori, Yoshinori
  • Horibe, Kazuya
  • Yamamoto, Hiromasa
  • Ito, Masatoshi
  • Yatsu, Yuya

Abstract

The present invention provides a machine tool comprising: a tool spindle capable of holding a diagnostic tool with a sensor; a tool transfer device which is provided separately from the tool spindle and which is capable of transferring the diagnostic tool; and a diagnostic device. The diagnostic device receives, from the sensor, data indicating a physical quantity acting on the diagnostic tool as the diagnostic tool is transferred by the tool transfer device. The diagnostic device analyzes the data to thereby diagnose whether an abnormality is present or absent in the machine tool.

IPC Classes  ?

  • B23Q 17/00 - Arrangements for indicating or measuring on machine tools
  • B23B 31/00 - ChucksExpansion mandrelsAdaptations thereof for remote control
  • B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools
  • B23Q 17/12 - Arrangements for indicating or measuring on machine tools for indicating or measuring vibration

25.

COOLANT DISCHARGER, WORKPIECE HOLDER, WORKPIECE ROTATOR, MACHINE TOOL, AND METHOD OF USING COOLANT DISCHARGER

      
Application Number 18329581
Status Pending
Filing Date 2023-06-06
First Publication Date 2024-06-06
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Asai, Eri
  • Mishina, Masahiro
  • Yamamoto, Yuki

Abstract

A coolant discharger includes a rotator, a fluid passage, and a nozzle. The rotator is rotatable about a rotation axis together with a workpiece and has a through hole extending along the rotation axis. The fluid passage is provided in the through hole to supply a coolant toward the workpiece. The nozzle is connected to the rotator to be connected to the fluid passage to discharge the coolant from the nozzle toward the workpiece in a discharging direction away from the rotation axis. At least a part of the nozzle is movable along the rotation axis.

IPC Classes  ?

  • B23Q 11/10 - Arrangements for cooling or lubricating tools or work

26.

CHUCK SOFT JAW, CHUCK SOFT JAW SHAPING METHOD, WORKPIECE PROCESSING METHOD, AND HYBRID MACHINE TOOL

      
Application Number JP2022043875
Publication Number 2024/116257
Status In Force
Filing Date 2022-11-29
Publication Date 2024-06-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yamazaki, Ryo
  • Shibayama, Gen
  • Yamamoto, Yuki

Abstract

This chuck soft jaw is a jaw supported by a chuck main body so as to be movable in a first direction away from the central axis of the chuck main body and in a second direction approaching the central axis. The chuck soft jaw comprises a first holding surface that can hold a first surface of a workpiece, and a second holding surface that can hold a cut surface of the workpiece. The hardness of the first holding surface is greater than the hardness of the second holding surface.

IPC Classes  ?

  • B23B 3/16 - Turret lathes for turning individually-chucked workpieces
  • B23Q 3/06 - Work-clamping means

27.

MACHINING SIMULATION DEVICE, MACHINE TOOL, MACHINE TOOL SYSTEM, MACHINING SIMULATION METHOD, AND PROGRAM

      
Application Number JP2022040672
Publication Number 2024/095314
Status In Force
Filing Date 2022-10-31
Publication Date 2024-05-10
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Oshima, Yuji
  • Shioi, Yu
  • Yamamoto, Mikihito
  • Koike, Shunsuke
  • Katayama, Takuro
  • Sumida, Yasuharu

Abstract

This machining simulation device is equipped with a memory and a calculation device. The memory stores: a plurality of configuration models obtained by modeling at least some of the elements which constitute a machine tool; a plurality of holding unit models obtained by modeling each of a plurality of tool holding units; a workpiece model obtained by modeling the workpiece before machining; and a machining program. The calculation device sets a specific tool model obtained by modeling the tool on the basis of tool information. The calculation device selects a specific holding unit model from among the plurality of holding unit models stored in the memory, on the basis of the tool information. The calculation device calculates a recommended value for the length by which the specific tool model projects relative to the specific holding unit model, on the basis of the tool information. The calculation device generates an assembly model in which the specific tool model and the specific holding unit model are assembled in a manner such that the projection length equals the recommended value or a corrected value obtained by correcting the recommended value.

IPC Classes  ?

  • G05B 19/4069 - Simulating machining process on screen
  • B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work

28.

MACHINING SIMULATION DEVICE, NUMERICALLY CONTROLLED LATHE, MACHINE TOOL SYSTEM, WORKPIECE MACHINING METHOD, AND PROGRAM

      
Application Number JP2022040901
Publication Number 2024/095367
Status In Force
Filing Date 2022-11-01
Publication Date 2024-05-10
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Saka, Kotaro
  • Koike, Shunsuke
  • Katayama, Takuro

Abstract

This machining simulation device comprises a computation device and a communication circuit. The computation device sets the position of a program origin, that is, an origin in a machining simulation coordinate system, on the basis of a machine model origin in the machining simulation coordinate system which corresponds to a machine origin of a numerically controlled lathe, a jaw model, that is, a shape model of jaws to be attached to a chuck of the numerically controlled lathe, and a workpiece model, that is, a shape model of a workpiece to be grabbed by the multiple jaws. In addition, the computation device carries out machining simulation to virtually machine the workpiece model by executing a machining program by using the program origin as a reference position. The communication circuit transmits data indicating the position of the program origin to the numerically controlled lathe.

IPC Classes  ?

  • B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
  • G05B 19/4097 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM

29.

TOOL STATE DISPLAY DEVICE, NUMERICAL CONTROL DEVICE FOR MACHINE TOOL, MACHINE TOOL, AND TOOL PREPARATION METHOD

      
Application Number JP2022040973
Publication Number 2024/095389
Status In Force
Filing Date 2022-11-02
Publication Date 2024-05-10
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Saka, Kotaro
  • Mizutani, Ryohei
  • Koike, Shunsuke
  • Katayama, Takuro

Abstract

This tool state display device comprises a memory, a calculation device, and a display. The memory stores first data which associates each mounting surface of a turret, which has a plurality of the mounting surfaces, with a tool mounted on each of the mounting surfaces and second data which specifies whether each of the tools mounted on the turret has measured blade edge positions. The calculation device determines, on the basis of third data and the first data, whether a designated tool is mounted on a designated mounting surface of the turret, the third data associating the designated tool designated by a processing program with the designated mounting surface on which the designated tool is required to be mounted. The calculation device determines, on the basis of the third data and the second data, whether the designated tool has measured the blade edge positions. The display displays a first image which represents whether the designated tool is mounted on the designated mounting surface. In addition, the display displays a second image which represents whether the designated tool has measured the blade edge positions.

IPC Classes  ?

  • B23Q 17/00 - Arrangements for indicating or measuring on machine tools

30.

NUMERIC VALUE CONTROL DEVICE, MACHINE TOOL, METHOD FOR CONTROLLING ELECTRIC POWER CONSUMED BY MACHINE TOOL, PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM

      
Application Number JP2022041048
Publication Number 2024/095409
Status In Force
Filing Date 2022-11-02
Publication Date 2024-05-10
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Ito, Genta
  • Ueda, Shota
  • Matsuzawa, Hiroaki
  • Matsui, Jun
  • Sumida, Yasuharu
  • Katayama, Takuro
  • Koike, Shunsuke

Abstract

This method for controlling the electric power consumed by a machine tool includes: displaying, as an initial electric power value, the electric power consumed by each of at least one device provided to a machine tool, i.e., the electric power consumed while the machine tool is operating; accepting an input for selecting a subject device from among the at least one device, the electric power consumed by the subject device being changed from the initial electric power value; accepting input of a drive parameter for changing the electric power consumed by the subject device; and controlling the subject device on the basis of the drive parameter.

IPC Classes  ?

  • B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
  • B23Q 17/00 - Arrangements for indicating or measuring on machine tools
  • G05B 19/4063 - Monitoring general control system
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

31.

TURRET LATHE, AND TOOL PREPARATION METHOD

      
Application Number JP2022040974
Publication Number 2024/095390
Status In Force
Filing Date 2022-11-02
Publication Date 2024-05-10
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yamamoto, Mikihito
  • Hikosaka, Taichi
  • Kakamu, Tatsuya
  • Koike, Shunsuke
  • Sumida, Yasuharu

Abstract

A control device of this turret lathe executes a first determination process for determining whether a designated tool is attached to a designated mounting surface of a plurality of mounting surfaces of a turret, and selects a specific operation pattern from a plurality of operation patterns on the basis of the result of the first determination process. The plurality of operation patterns include at least a first operation pattern that is executed when the designated tool is not attached to the designated mounting surface, and a second operation pattern that is executed when the designated tool is attached to the designated mounting surface. The first operation pattern includes rotating the turret around a first axis so that the designated mounting surface is indexed to an indexed position for mounting, before the designated tool is attached to the designated mounting surface. The second operation pattern includes rotating the turret around the first axis so that the designated mounting surface to which the designated tool is attached is directly indexed to an indexed position for cutting-edge position measurement.

IPC Classes  ?

  • B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
  • B23Q 17/00 - Arrangements for indicating or measuring on machine tools

32.

COMPOSITE MACHINING DEVICE, CONTROL METHOD FOR COMPOSITE MACHINING DEVICE, AND PROGRAM FOR EXECUTING CONTROL METHOD

      
Application Number JP2022034766
Publication Number 2024/057532
Status In Force
Filing Date 2022-09-16
Publication Date 2024-03-21
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsubara, Eiji
  • Kakiuchi, Susumu
  • Minatani, Masayasu
  • Fujiwara, Yoshihiko

Abstract

According to the present invention, a control method for a composite machining device for executing cutting and friction stir welding involves: acquiring tool information representing whether each of a plurality of tools that can be attached to the composite machining device is a cutting tool or a friction stir welding tool; acquiring a command indicating, from among the plurality of tools, an execution tool that is called by a machining program that is executed by the composite machining device; and when it is determined on the basis of the tool information and command that the execution tool is a cutting tool, enabling correction of the position of the execution tool, as based on a temperature detected from a temperature sensor provided to the composite machining device, during cutting, and when it is determined on the basis of the tool information and the command that the execution tool is a friction stir welding tool, determining the load on the execution tool during friction stir welding and enabling position correction of the execution tool on the basis of the load.

IPC Classes  ?

  • B23P 23/04 - Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
  • B23Q 15/18 - Compensation of tool-deflection due to temperature or force
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia

33.

COMBINED MACHINING APPARATUS, CONTROL METHOD FOR COMBINED MACHINING APPARATUS, AND PROGRAM FOR EXECUTING CONTROL METHOD

      
Application Number JP2023009006
Publication Number 2024/057584
Status In Force
Filing Date 2023-03-09
Publication Date 2024-03-21
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsubara, Eiji
  • Kakiuchi, Susumu
  • Minatani, Masayasu
  • Kato, Takumi
  • Kimura, Kiyoshi

Abstract

Provided is a controlling method for a combined machining apparatus for executing cutting machining and frictional agitation joining. The method comprises: acquiring tool information that indicates whether each of a plurality of tools which can be attached to the combined machining apparatus is a tool for cutting machining or a tool for frictional agitation joining; acquiring a command that indicates, from among the plurality of tools, an execution tool called by a machining program executed by the combined machining apparatus; enabling a correction of a position of the execution tool based on a temperature detected by a temperature sensor provided to the combined machining apparatus during cutting machining if it is determined that the execution tool is a tool for cutting machining on the basis of the tool information and the command; and finding a load acting on a motor that rotates the execution tool during frictional agitation joining, and enabling a correction of a position of the execution tool based on the load if it is determined that the execution tool is a tool for frictional agitation joining on the basis of the tool information and the command.

IPC Classes  ?

  • B23P 23/04 - Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
  • B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
  • B23Q 15/18 - Compensation of tool-deflection due to temperature or force
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia

34.

MACHINE TOOL

      
Application Number 17942107
Status Pending
Filing Date 2022-09-09
First Publication Date 2024-03-14
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Streck, Donald Thomas
  • Linder, Lem

Abstract

In one aspect, a method of preparing a machine tool to machine a workpiece. The machine tool includes an artifact in the machine tool and a probe mounted to a head of the machine tool. The method includes determining a tool offset value for a tool by moving the probe and the tool relative to one another to bring the probe and the tool into contact with one another. Prior to determining the tool offset value, the method includes calibrating the probe by moving the probe and the artifact relative to one another to bring the probe and the artifact into contact with one another.

IPC Classes  ?

  • B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets

35.

DOORS FOR A MACHINE TOOL

      
Application Number 17941953
Status Pending
Filing Date 2022-09-09
First Publication Date 2024-03-14
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hattori, Seiichi
  • Eboshi, Koichi
  • Sano, Katsuki

Abstract

In one aspect, a machine tool having a frame assembly, a first head having a first rotatable workpiece holder, and a second head having a second rotatable workpiece holder. The frame assembly includes a first door movable in a first direction between a first closed position and a first open position and a second door movable in a second direction transverse to the first direction between a second closed position and a second open position. The frame assembly has an access opening sized to permit access to the first and second heads with the first door in the first open position and the second door in the second closed position. The frame assembly has a larger access opening to increase ease of user accessibility to the first and second heads with the first door in the first open position and the second door in the second open position.

IPC Classes  ?

  • B23B 25/00 - Accessories or auxiliary equipment for turning-machines
  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods

36.

DRAW TUBE DRIVE MECHANISM, SPINDLE UNIT, AND MACHINE TOOL

      
Application Number JP2022032969
Publication Number 2024/047844
Status In Force
Filing Date 2022-09-01
Publication Date 2024-03-07
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Sano, Katsuki
  • Eboshi, Koichi

Abstract

The present invention provides a draw tube drive mechanism provided with: a draw tube that is movable, in a first direction substantially parallel to a first axis, with respect to a support body supporting a rotating body so as to be rotatable about the first axis; a drive device that moves a moving body in a second direction substantially perpendicular to the first direction; a first pin; a second pin; a third pin; a fourth pin; a first link that is connected to the moving body via the first pin; a second link that is connected to the first link via the second pin and that is connected to the support body via the fourth pin; and a third link that is connected to the first link via the third pin and that transmits, to the draw tube, a force received from the moving body via the first link. The first pin, the second pin, and the third pin are arranged substantially in a straight line, as viewed in a direction along a third direction substantially perpendicular to both of the first direction and the second direction. The distance between the first pin and the second pin and the distance between the second pin and the third pin are each substantially equal to the distance between the second pin and the fourth pin.

IPC Classes  ?

  • B23B 31/117 - Retention by friction only, e.g. using springs, resilient sleeves, tapers
  • B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
  • B23B 21/00 - Lathe carriagesCross-slidesTool postsSimilar parts of any machine tools
  • B23B 31/20 - Longitudinally-split sleeves, e.g. collet chucks
  • B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle

37.

DOOR DEVICE OF MACHINE TOOL AND MACHINE TOOL

      
Application Number 18506140
Status Pending
Filing Date 2023-11-10
First Publication Date 2024-02-29
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kintoki, Tomohiro
  • Arisue, Kenji
  • Hirose, Kenji
  • Maekawa, Reiji
  • Kaneda, Yuki

Abstract

A door device includes a door slidable between a first position and a second position; an air cylinder having a first air chamber to which air is supplied to apply a first assist force to the door in a first direction from the first position toward the second position; a fluid passage connecting the first air chamber and an air supply source; a switch valve provided at the fluid passage; and a manipulation switch to switch the switch valve between a first state and a second state. The door, in the first state, is movable in the first direction and a second direction opposite to the first direction without the first assist force. The first assist force is applied to the door in the second state. The door at the first position closes an opening a machine tool. The door at the second position fully opens the opening.

IPC Classes  ?

  • B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
  • E05F 15/56 - Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings

38.

LASER PIERCING METHOD, AND LASER MACHINE

      
Application Number JP2022030533
Publication Number 2024/034041
Status In Force
Filing Date 2022-08-10
Publication Date 2024-02-15
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Mori, Yuto
  • Maeda, Ryota
  • Tomida, Tatsuya
  • Jitsumori, Takashi

Abstract

This laser piercing method comprises: producing a coated portion on a workpiece, the coated portion being coated with an oil; irradiating the coated portion with laser light such that the laser output density of the laser light has a first laser output density in a central portion of the coated portion irradiated with the laser light, a second laser output density, which is smaller than the first laser output density, in a peripheral portion surrounding the central portion of the coated portion, and a third laser output density, which is smaller than the second laser output density, in a boundary portion between the central portion and the peripheral portion of the coated portion; forming a piercing hole in the coated portion by melting the workpiece inside the coated portion by first laser light applied to the central portion, and by blowing a gas onto the molten workpiece to scatter the molten workpiece on the surroundings of the central portion; and heating a root of spatter by second laser light applied to the peripheral portion, the spatter being the scattered workpiece which is in contact, via no oil, with the machined workpiece forming the piecing hole.

IPC Classes  ?

39.

ADDITIVE MANUFACTURING APPARATUS, MULTI-TASKING APPARATUS, METHOD FOR CONTROLLING ADDITIVE MANUFACTURING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM STORING CONTROL PROGRAM FOR ADDITIVE MANUFACTURING APPARATUS

      
Application Number 18307811
Status Pending
Filing Date 2023-04-27
First Publication Date 2024-02-01
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Ouchi, Seigo
  • Asano, Kohei

Abstract

An additive manufacturing apparatus includes a powder feeder to feed powder, a head to discharge the powder, a first flow passage connecting the powder feeder and the head, a flow passage switching valve provided disposed in the first flow passage, a reservoir tank configured to receive the powder fed from the powder feeder, a second flow passage connecting the flow passage switching valve to the reservoir tank, a first sensor, and a second sensor. The flow passage switching valve is configured to take a first position and a second position alternatively. The powder feeder is connected to the head via the first flow passage in the first position to supply the powder to the head. The powder feeder is connected to the reservoir tank via the second flow passage in the second position to supply the powder to the reservoir tank.

IPC Classes  ?

  • B22F 12/57 - Metering means
  • B22F 10/30 - Process control
  • B22F 12/82 - Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

40.

COOLANT SUPPLY DEVICE, MACHINE TOOL, METHOD FOR SUPPLYING COOLANT TO MACHINE TOOL, AND PROGRAM

      
Application Number JP2022029024
Publication Number 2024/023998
Status In Force
Filing Date 2022-07-27
Publication Date 2024-02-01
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nishi, Hironori
  • Okuda, Toshihito
  • Iseki, Akira

Abstract

This method for supplying a coolant to a machine tool includes reading a coolant designation code from a machining program, said code being for designating the opening and closing of a plurality of valves provided respectively to a plurality of coolant supply paths that are connected to a plurality of nozzles attached to the machine tool, and designating a measure of discharge of the coolant for a pump that supplies the coolant to the plurality of nozzles. The method includes controlling the opening and closing of the plurality of valves on the basis of the coolant designation code, and controlling the pump such that only the measure of discharge of the coolant is discharged. The method includes injecting the coolant from at least one injection nozzle connected to at least one open valve that was opened among the plurality of valves.

IPC Classes  ?

  • G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
  • B23Q 11/10 - Arrangements for cooling or lubricating tools or work
  • G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters

41.

NUMERICAL CONTROL DEVICE, NUMERICAL CONTROL MACHINE TOOL, MACHINING PROGRAM GENERATION DEVICE, AND MACHINING PROGRAM GENERATION METHOD

      
Application Number JP2022027773
Publication Number 2024/013955
Status In Force
Filing Date 2022-07-14
Publication Date 2024-01-18
Owner
  • MITSUBISHI ELECTRIC CORPORATION (Japan)
  • YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Fujita, Tomoya
  • Kubo, Takeshi
  • Kinoshita, Hiroyuki
  • Matsuno, Junji
  • Hibino, Kohei
  • Hirao, Takuya
  • Iseki, Akira

Abstract

A numerical control device (1a) is provided with: a model holding unit (13) that holds a machine model which simulates, in each axial direction that is the direction of each of a plurality of axes, a deformation of a mechanical structure caused by a motion of the machine structure and represents an error amount, which is a displacement amount of a tool in each axial direction caused by the deformation of the mechanical structure; a machining error estimation unit (12) that estimates, on the basis of axis data and the machine model, an error direction and an error amount in the error direction, said axis data being data on drive of a drive mechanism, said error direction being a direction which is of the axial directions and in which a tool displacement occurs and that outputs machining error information indicating the estimated error direction and the estimated error amount; and a correction amount calculation unit (14a) that selects, on the basis of the machining error information, one or more axes as targes of the correction and calculates a correction amount to be used to correct an instruction output to the drive mechanism for the selected axis.

IPC Classes  ?

  • G05D 3/12 - Control of position or direction using feedback
  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia

42.

MACHINE TOOL, DIAGNOSIS SYSTEM FOR MACHINE TOOL, AND METHOD OF DIAGNOSING MACHINE TOOL

      
Application Number 18477487
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Horibe, Kazuya
  • Aoyama, Osamu
  • Saga, Yukihiko
  • Yamamoto, Hiromasa
  • Park, Hyunkoo
  • Kitayama, Jumpei

Abstract

A machine tool includes an input interface configured to receive an instruction, an actuator configured to actuate, control circuitry configured to control an actuation of the actuator based on the instruction, a component having a physical state to be affected by the actuation, a sensor configured to detect the physical state, and a computer connected to the control circuitry via an external communication interface. The computer is configured to receive a signal from the sensor, generate, based on the signal, rough state-description data relevant to an occurrence of an abnormality in the component, transmit the rough state-description data to the control circuitry, generate detailed state-description data based on the signal, the detailed state-description data being more informative than the rough state-description data such that the detailed state-description data facilitates identifying an abnormal part in the component, and transmit the detailed state-description data to a monitoring computer via a communication network.

IPC Classes  ?

  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
  • B23Q 17/12 - Arrangements for indicating or measuring on machine tools for indicating or measuring vibration
  • G05B 19/414 - Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
  • G05B 19/406 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
  • G05B 23/02 - Electric testing or monitoring

43.

MACHINE TOOL, TOOL HOLDER, AND WORKPIECE MACHINING METHOD

      
Application Number JP2022023633
Publication Number 2023/242906
Status In Force
Filing Date 2022-06-13
Publication Date 2023-12-21
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yoshida, Seiichi
  • Hattori, Atsushi
  • Fujiwara, Yoshihiko

Abstract

This machine tool is equipped with: a rotary device having a rotary body that rotates about a first axis; a tool holder that can be attached to the rotary body; and a power feeding device that feeds electric power to the tool holder. The tool holder has: a power reception unit that is disposed in an outer circumferential edge region of the tool holder; and at least one sensor that is electrically connected to the power reception unit. The power feeding device includes: a power feeding unit that feeds electric power to the power reception unit; and a first transfer device that transfers the power feeding unit between a power feeding position facing the power reception unit and a retreat position located farther away from the power reception unit compared with the power feeding position.

IPC Classes  ?

  • B23Q 5/04 - Driving main working members rotary shafts, e.g. working-spindles
  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool

44.

FRICTION STIR WELDING TOOL, FRICTION STIR WELDING APPARATUS, AND FRICTION STIR WELDING METHOD

      
Application Number JP2022019219
Publication Number 2023/209928
Status In Force
Filing Date 2022-04-28
Publication Date 2023-11-02
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsubara, Eiji
  • Minatani, Masayasu
  • Niwa, Kentaro

Abstract

This friction stir welding tool comprises: a shoulder having a shoulder surface that comes into contact with a workpiece; and a probe that juts from the shoulder and is rotatable about a first axis. In the outer circumferential surface of the probe, a spiral groove section and a bevel section are formed, alternatingly, along the circumference direction of the probe. When the rotational direction of the probe is defined as a first rotational direction, the spiral groove section has a plurality of grooves that approach the shoulder surface as the grooves head in the first rotational direction. In a portion of an end face on the tip part of the probe, a sloping surface is formed that ranges to the bevel section and that approaches the shoulder surface as the sloping surface heads in the first rotational direction.

IPC Classes  ?

  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

45.

TURNING METHOD, MACHINING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

      
Application Number 18319484
Status Pending
Filing Date 2023-05-18
First Publication Date 2023-09-28
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Nagao, Ryo
  • Yasui, Takeshi
  • Tamura, Youji

Abstract

A turning method includes driving a first movement apparatus to locate a cutting edge of a turning tool at a first radial position; driving a second movement apparatus to move the turning tool in an axial direction to perform first turning with the cutting edge at the first radial position; driving the second movement apparatus to move the turning tool away from a workpiece in the axial direction after performing the first turning; calculating an error between the processed dimension and a target dimension; driving a third movement apparatus, which is configured to move the turning tool relative to the first movement apparatus in a radial direction, to locate the cutting edge of the turning tool at a second radial position to correct the error; and driving the second movement apparatus to move the turning tool in the axial direction to perform second turning at the second radial position.

IPC Classes  ?

  • B23Q 15/02 - Control or regulation of feed movement according to the instantaneous size and the required size of the workpiece acted upon
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

46.

METHOD FOR PRESSING TAILSTOCK OF MACHINING APPARATUS, MACHINING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM

      
Application Number 18327057
Status Pending
Filing Date 2023-06-01
First Publication Date 2023-09-28
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Tanaka, Naoya
  • Ryuta, Toraharu
  • Ueki, Hiroyuki
  • Hirose, Masaki
  • Sakai, Yuji
  • Sawamura, Nozomu
  • Kakehi, Shogo
  • Kusaka, Kazuya

Abstract

A machining apparatus includes a processor configured to control an actuator to move a tailstock in a first direction at a first speed, to detect a contact between the tailstock and a workpiece based on a change in an input amount to the actuator while the actuator is controlled to move the tailstock at the first speed, to control the actuator to stop moving the tailstock when the contact is detected, to control the actuator to move the tailstock by a first distance in a second direction, to control the actuator to move the tailstock in the first direction at a second speed lower than the first speed, and to control the actuator to stop moving the tailstock, when the input amount to the actuator becomes a value corresponding to the target pressing force while the actuator is controlled to move the tailstock at the second speed.

IPC Classes  ?

47.

LASER MACHINING TOOL AND LASER MACHINING METHOD

      
Application Number JP2022012964
Publication Number 2023/181093
Status In Force
Filing Date 2022-03-22
Publication Date 2023-09-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kageyama, Keisuke
  • Shimamoto, Kazuya
  • Nakanishi, Tetsuya
  • Hachiya, Keita

Abstract

This laser machining tool includes: a laser head that machines a workpiece by projecting a laser beam onto the workpiece, the workpiece extending in a first direction; and a holding member that holds the workpiece. The laser machining tool further comprises: a first chuck which is movable in the first direction; a second chuck which is disposed between the laser head and the first chuck in the first direction, and has a plurality of guide rollers that sandwich the workpiece and guide the movement of the workpiece in the first direction; and a moving device that moves the first chuck in the first direction such that an end face of the holding member approaches the laser head across the plurality of guide rollers.

IPC Classes  ?

  • B23K 26/38 - Removing material by boring or cutting

48.

Rotary shaft locking device, machining head, and multi-tasking machine

      
Application Number 18317096
Grant Number 12263551
Status In Force
Filing Date 2023-05-15
First Publication Date 2023-09-14
Grant Date 2025-04-01
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nakamura, Shinya
  • Sasaki, Hiroto
  • Sato, Kimihiko

Abstract

A rotary shaft locking device includes a rotary shaft, a first angular contact ball bearing, a support, and an actuator. The rotary shaft is rotatable about a first axis and has a first contact surface. The first angular contact ball bearing includes an inner ring connected to the rotary shaft, an outer ring, and a plurality of balls disposed between the inner ring and the outer ring. The support has a second contact surface and rotatably supports the rotary shaft via the first angular contact ball bearing. The actuator is configured to move the rotary shaft and the inner ring with respect to the support and the outer ring in a first direction parallel to the first axis so that the first contact surface contacts the second contact surface to prohibit the rotary shaft from rotating and so that precompression that acts on the plurality of balls is reduced.

IPC Classes  ?

  • B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
  • B23Q 5/04 - Driving main working members rotary shafts, e.g. working-spindles
  • F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls

49.

ADDITIVE MANUFACTURING METHOD, ADDITIVE MANUFACTURING SYSTEM, AND ADDITIVE MANUFACTURING PROGRAM

      
Application Number JP2022008377
Publication Number 2023/162253
Status In Force
Filing Date 2022-02-28
Publication Date 2023-08-31
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Ouchi Seigo
  • Suzuki Atsushi
  • Ishibashi Kazuhiro

Abstract

Provided are an additive manufacturing method and an additive manufacturing system with which a processing time can be shortened without making the configuration of a processing system complex. This method comprises: a preheating step in which the temperature of an additive manufacturing region of a workpiece is heated to at least a preheating lower limit temperature by cutting a cutting region which includes the additive manufacturing region; and an additive manufacturing step in which a molten metal is added to the additive manufacturing region of the workpiece in a state in which the additive manufacturing region has been preheated in the preheating step. The system comprises: an additive manufacturing unit that adds a molten metal to a workpiece; a cutting unit that cuts a surface of the workpiece; and a control unit that transmits a control signal for controlling the operation of the additive manufacturing unit and the cutting unit. The control unit: causes the cutting unit to cut a cutting region which includes an additive manufacturing region of the workpiece; causes the additive manufacturing region to be heated so that the temperature thereof is at least a preheating lower limit temperature; and causes the additive manufacturing unit to add a molten metal to the additive manufacturing region of the workpiece in a preheated state.

IPC Classes  ?

  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 9/235 - Preliminary treatment

50.

MACHINE TOOL, WORKPIECE SUPPORT DEVICE OF MACHINE TOOL, METHOD OF OPERATING MACHINE TOOL, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

      
Application Number 18296376
Status Pending
Filing Date 2023-04-06
First Publication Date 2023-08-17
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Suzuki, Atsushi
  • Ouchi, Seigo
  • Ishibashi, Kazuhiro

Abstract

A machine tool includes a first machining head which is configured to support a wire such that a tip end of the wire is exposed from the first machining head and via which a molten material produced from the tip end is provided to the workpiece supported by a table, a second machining head configured to support a tool to cut the workpiece, a power supply configured to supply a current to the wire, a conduction block disposed on the table to detect a position of the tip end, a drive device configured to relatively move the first machining head with respect to the table to bring the tip end of the wire into contact with the conduction block, and a first electric circuit configured to be changed from an open state to a closed state by bringing the tip end into contact with the conduction block.

IPC Classes  ?

  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 37/02 - Carriages for supporting the welding or cutting element
  • B23K 9/10 - Other electric circuits thereforProtective circuitsRemote controls
  • B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
  • B23K 9/095 - Monitoring or automatic control of welding parameters

51.

MACHINE TOOL AND MACHINE TOOL HANDLING METHOD

      
Application Number JP2021048011
Publication Number 2023/119591
Status In Force
Filing Date 2021-12-23
Publication Date 2023-06-29
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Tanaka, Naoya
  • Suzuki, Takeshi
  • Hasegawa, Teppei
  • Matsumoto, Masatoshi

Abstract

A machine tool according to the present invention comprises: a table that supports a workpiece and that is capable of moving in a first direction and a second direction, which is opposite to the first direction; a tool support device that supports a tool which processes the workpiece; a moving device that moves the table; a first wall that is disposed closer to the first direction side than the table and that has a first opening; a first cover that protrudes, via the first opening, further in the first direction than the first wall; and a first support member that supports the first cover so as to allow tilting to decrease the amount by which the first cover protrudes further than the first wall.

IPC Classes  ?

  • B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards

52.

MACHINE TOOL, METHOD FOR DETECTING CONTACT BETWEEN WHETSTONE AND WORKPIECE BY MEANS OF MACHINE TOOL, AND COMPUTER PROGRAM

      
Application Number JP2021043643
Publication Number 2023/095339
Status In Force
Filing Date 2021-11-29
Publication Date 2023-06-01
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yamamoto, Yuki
  • Mori, Yosuke

Abstract

This method for detecting contact between a whetstone and a workpiece by means of a machine tool involves controlling at least one actuator so as to cause a tool retainer, which retains a whetstone so as to be rotatable about the tool rotational axis, to relatively move in the movement direction relative to a workpiece retainer which retains a workpiece. This method also involves controlling a motor which is different from said at least one actuator and which is capable of causing either the tool retainer or the workpiece retainer to move along a control axis that intersects with both the tool rotational axis and the movement direction such that either one of the retainers stands still in a direction along the control axis. This method further involves detecting contact between the whetstone and the workpiece in accordance with a change in the control value of the motor.

IPC Classes  ?

  • B24B 49/16 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
  • B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
  • B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means

53.

LASER PROCESSOR, LASER PROCESSING SYSTEM, AND METHOD FOR MOUNTING CARTRIDGE

      
Application Number 18085572
Status Pending
Filing Date 2022-12-21
First Publication Date 2023-04-20
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Hatano, Kazuhiro
  • Kitamoto, Tetsuichi

Abstract

A laser processor includes a machining head and a cartridge configured to be inserted in the machining head. The machining head includes an optical path of a laser beam, a pressing member, and a stopper surface. The cartridge is configured to be pressed along the optical path toward the stopper surface by the pressing member when the cartridge is in the machining head. The cartridge includes an optical component configured to be positioned in the optical path when the cartridge is in the machining head. The optical component has a first surface and a second surface opposite to the first surface along the optical path, a first member configured to contact the first surface of the optical component and the pressing member, and a second member configured to contact the second surface of the optical component and the stopper surface.

IPC Classes  ?

  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/38 - Removing material by boring or cutting
  • B23K 37/02 - Carriages for supporting the welding or cutting element

54.

LAMINATE SHAPING METHOD

      
Application Number 17938145
Status Pending
Filing Date 2022-10-05
First Publication Date 2023-04-13
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Sakai, Yasunori
  • Yamauchi, Daisuke
  • Hayashida, Naoya

Abstract

A laminate shaping method includes: a unit step repeatedly performed, the unit step including a step of forming a laminate shaped portion by laminating metal layers formed of weld beads, and a step of forming a processed side surface by cutting a shaped portion side surface facing a second direction intersecting a first direction, in which, in the step of forming the processed side surface, the shaped portion side surface is cut so that a receiving portion projecting in the second direction with respect to the processed side surface is formed at an uppermost layer of the laminate shaped portion in the first direction, and when the unit step is repeated, in the step of forming the laminate shaped portion, a new metal layer is laminated so as to overlap an upper surface of the receiving portion in the first direction.

IPC Classes  ?

  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding

55.

WORKPIECE SUPPORT DEVICE FOR MACHINE TOOL, MACHINE TOOL, AND METHOD FOR USING MACHINE TOOL

      
Application Number JP2021031541
Publication Number 2023/026477
Status In Force
Filing Date 2021-08-27
Publication Date 2023-03-02
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kimura, Jojiro
  • Yamane, Hiroshi
  • Kondo, Hiroshi
  • Miyashita, Yuta

Abstract

This workpiece support device for a machine tool is provided with: a rotary shaft that supports a workpiece and that can rotate about a first axis; a first support device that has a through-hole portion capable of supporting a guide bush adapter and that can receive the lead end portion of the rotary shaft in the through-hole portion; a second support device that supports the rotary shaft and moves the rotary shaft relatively to the first support device in a direction parallel to the first axis; and an attachment that is disposed to be brought into contact with the external surface of the lead end portion of the rotary shaft or the internal surface of the through-hole portion. At least a portion of the attachment disposed on the rotary shaft can be displaced toward a direction away from the first axis, or at least a portion of the attachment disposed on the through-hole portion of the first support device can be displaced toward a direction approaching the first axis.

IPC Classes  ?

  • B23B 3/06 - Turning-machines or devices characterised only by the special arrangement of constructional units
  • B23B 7/02 - Automatic or semi-automatic machines for turning of stock
  • B23B 13/12 - Accessories, e.g. stops, grippers
  • B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
  • B23B 31/20 - Longitudinally-split sleeves, e.g. collet chucks

56.

WORKPIECE SUPPORT DEVICE FOR MACHINE TOOL, MACHINE TOOL, AND METHOD FOR USING MACHINE TOOL

      
Application Number JP2021031542
Publication Number 2023/026478
Status In Force
Filing Date 2021-08-27
Publication Date 2023-03-02
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kimura, Jojiro
  • Yamane, Hiroshi
  • Kondo, Hiroshi
  • Miyashita, Yuta

Abstract

This workpiece support device for a machine tool comprises: a rotary shaft that supports a workpiece and is rotatable about a first axis; a first support device that has a through-hole section capable of supporting a guide bush adapter for holding a guide bush, and is capable of receiving a leading-end section of the rotary shaft in the through-hole section; a second support device that supports the rotary shaft and allows the rotary shaft to move relative to the first support device in a direction parallel to the first axis; and an air supply device that supplies air to the first support device. An injection port for injecting the air supplied from the air supply device is formed in an inner peripheral surface of the through-hole section in the first support device.

IPC Classes  ?

57.

JAW EXCHANGER AND MACHINE TOOL

      
Application Number 17679101
Status Pending
Filing Date 2022-02-24
First Publication Date 2022-12-08
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kintoki, Tomohiro
  • Ito, Tetsuya
  • Mori, Yuki
  • Myoren, Yuki

Abstract

A jaw exchanger includes a stocker configured to store jaws which are configured to be attached to a chuck body of a machine tool, a stocker movement mechanism configured to move the stocker between a first position and a second position, and a jaw transferor configured to transfer the jaws to the stocker positioned at the first position from a jaw receiver to receive the jaws, and configured to transfer the jaws to the chuck body from the stocker positioned at the second position. The chuck body is rotatable about a rotation axis.

IPC Classes  ?

58.

MACHINE TOOL PROVIDED WITH DETACHABLE WORKPIECE SUPPORT

      
Application Number JP2022021784
Publication Number 2022/250148
Status In Force
Filing Date 2022-05-27
Publication Date 2022-12-01
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hattori, Seiichi
  • Onji, Masaharu
  • Koike, Shunsuke
  • Fukuda, Takahiro

Abstract

[Solution] This machine tool is provided with a spindle device which has a through-hole that extends in the axial direction along the rotation axis, a tubular shaft which can move in the axial direction through the through-hole, and a workpiece support which is configured to be detachably attached to one end of the through-hole and to support the workpiece so as to allow movement in the aforementioned axial direction. The tubular shaft has a first end, oriented towards the aforementioned one end of the through-hole, and a second end opposite of the first end in the axial direction; the workpiece support can be detached from said one end of the through-hole and a probe can be attached to the first end of the tubular shaft.

IPC Classes  ?

  • B23B 9/04 - Automatic or semi-automatic machines for turning of stock with the working-spindles horizontal
  • B23B 13/12 - Accessories, e.g. stops, grippers
  • B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
  • B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work

59.

Machine tool with removable workpiece support

      
Application Number 17334604
Grant Number 11833630
Status In Force
Filing Date 2021-05-28
First Publication Date 2022-12-01
Grant Date 2023-12-05
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hattori, Seiichi
  • Onji, Masaharu
  • Koike, Shunsuke
  • Fukuda, Takahiro

Abstract

In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

IPC Classes  ?

  • B23B 9/04 - Automatic or semi-automatic machines for turning of stock with the working-spindles horizontal
  • B23Q 1/26 - Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable membersMeans for preventing relative movement of such members
  • B23B 39/10 - General-purpose boring or drilling machines or devicesSets of boring or drilling machines characterised by the drive, e.g. by fluid-pressure drive, pneumatic power drive
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
  • B23B 3/06 - Turning-machines or devices characterised only by the special arrangement of constructional units

60.

Workpiece installation method and workpiece installation support system

      
Application Number 17881604
Grant Number 12053850
Status In Force
Filing Date 2022-08-05
First Publication Date 2022-11-24
Grant Date 2024-08-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Horibe, Kazuya
  • Maruta, Kazumasa
  • Yamamoto, Hiromasa
  • Park, Hyunkoo
  • Itoh, Masatoshi
  • Mizukami, Ryuichi

Abstract

A workpiece installation method includes obtaining a reference image that shows a reference workpiece whose posture has been adjusted, setting workpiece reference lines on a boundary of a first image area occupied by the reference workpiece in the reference image, obtaining a measurement image that shows a workpiece, generating, using a processor, a measurement combined image in which workpiece reference lines are superimposed on the measurement image and which shows the workpiece reference lines pass through positions respectively identical to workpiece reference line positions, and adjusting a posture of the workpiece such that a boundary of a second image area occupied by the workpiece in the measurement combined image is shown to be substantially parallel to or substantially coincident with the workpiece reference lines.

IPC Classes  ?

  • B23Q 15/22 - Control or regulation of position of tool or workpiece
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

61.

DOOR DEVICE FOR MACHINE TOOL, AND MACHINE TOOL

      
Application Number JP2021018311
Publication Number 2022/239214
Status In Force
Filing Date 2021-05-14
Publication Date 2022-11-17
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kintoki, Tomohiro
  • Arisue, Kenji
  • Hirose, Kenji
  • Maekawa, Reiji
  • Kaneda, Yuki

Abstract

This door device for a machine tool comprises: a door that is slidably movable between a first position at which an opening of a housing that defines an interior region of the machine tool is closed and a second position at which the opening is opened; a handle disposed on the door; at least one air cylinder that has a first air chamber and applies, in a first direction from the first position toward the second position, a first assist force to the door when air is fed to the first air chamber; an air flow path that includes a first flow path connecting the first air chamber and an air supply source; at least one switching valve disposed in the air flow path; and an operation that switches the state of the at least one switching valve between a first state in which the door is allowed to move in the first direction or in a second direction from the second position toward the first position, without the first assist force and a second state in which the door is applied with the first assist force in the first direction.

IPC Classes  ?

  • B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
  • E05F 15/56 - Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings

62.

COOLANT DISCHARGE DEVICE, WORKPIECE HOLDING DEVICE, WORKPIECE ROTATING DEVICE, MACHINING TOOL, AND METHOD FOR USING COOLANT DISCHARGE DEVICE

      
Application Number JP2021017664
Publication Number 2022/239056
Status In Force
Filing Date 2021-05-10
Publication Date 2022-11-17
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Asai, Eri
  • Mishina, Masahiro
  • Yamamoto, Yuki

Abstract

This coolant discharge device is provided with: a rotation body that has a through-hole portion extending along the rotational axis and can rotate about the rotational axis together with a workpiece; a flow channel disposed in the through-hole portion; and a nozzle that is fluidly connected to the flow channel and can discharge coolant in a direction away from the rotational axis. At least a portion of the nozzle can be changed in position in a direction parallel to the rotational axis.

IPC Classes  ?

  • B23B 25/00 - Accessories or auxiliary equipment for turning-machines
  • B23B 31/00 - ChucksExpansion mandrelsAdaptations thereof for remote control
  • B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
  • B23Q 11/10 - Arrangements for cooling or lubricating tools or work

63.

MACHINE TOOL, DIAGNOSTIC SYSTEM FOR MACHINE TOOL, AND DIAGNOSTIC METHOD FOR MACHINE TOOL

      
Application Number JP2021014008
Publication Number 2022/208803
Status In Force
Filing Date 2021-03-31
Publication Date 2022-10-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Horibe, Kazuya
  • Aoyama, Osamu
  • Saga, Yukihiko
  • Yamamoto, Hiromasa
  • Park, Hyunkoo
  • Kitayama, Jumpei

Abstract

This machine tool comprises: components of which the states change according to the operation of an actuator of the machine tool; a sensor which is configured to detect the states of the components; a signal processing device which is configured to process signals from the sensor; a control device which is configured to control the operation of the actuator; and an input/output device which is configured to input a command for causing the control device to perform the operation of the actuator, and to provide notification of the operation status of the actuator. The signal processing device is configured to transmit, to the control device, state-description simplified data pertaining to an occurrence of abnormality of the component. The signal processing device is configured to transmit, to a remote monitoring device for analyzing the states of the components, state-description detailed data for specifying the abnormal part of the component. The input/output device is configured to provide notification, to an operator, of whether an abnormality has occurred in the component on the basis of the state-description simplified data which has been transmitted to the control device.

IPC Classes  ?

  • G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form

64.

Table rotation device and machine tool

      
Application Number 17746960
Grant Number 11940086
Status In Force
Filing Date 2022-05-18
First Publication Date 2022-09-01
Grant Date 2024-03-26
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kimura, Jojiro
  • Tahara, Makoto
  • Sakai, Nobuhiro

Abstract

A table rotation device includes a bearing assembly, a table support member, a support block, and a cooling block. The bearing assembly includes a fixed ring, a movable ring, and rolling elements provided between the fixed ring and the movable. The movable ring is rotatable about the rotation axis. The table support member is connected to the movable ring so as to fix a position of the table support member relative to a position of the movable ring. The support block is connected to the fixed ring so as to fix a position of the support block relative to a position of the fixed ring. The cooling block is connected to at least one of the fixed ring and the support block such that the cooling block is in contact with both the fixed ring and the support block. The cooling block provides a cooling passage.

IPC Classes  ?

  • F16M 11/00 - Stands or trestles as supports for apparatus or articles placed thereon
  • F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
  • F16M 1/04 - Frames or casings of engines, machines, or apparatusFrames serving as machinery beds for rotary engines or similar machines

65.

TURNING METHOD, MACHINING SYSTEM, AND MACHINING PROGRAM

      
Application Number JP2021002450
Publication Number 2022/157976
Status In Force
Filing Date 2021-01-25
Publication Date 2022-07-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nagao Ryo
  • Yasui Takeshi
  • Tamura Youji

Abstract

The present invention is a method for turning a workpiece rotating about a rotational axis. This method includes: driving a first movement device that moves a turning tool in a radial direction of a rotational axis to dispose a blade tip of the turning tool at a first radial direction position in the radial direction, driving a second movement device that moves the turning tool parallel to the rotational axis to turn the workpiece and, then, moves the turning tool in an opposite direction to retract the turning tool from the workpiece; calculating an error with respect to a target dimension by measuring a machined dimension of the workpiece; driving a third movement device that moves the turning tool, relative to the first movement device, in the radial direction of the rotational axis; disposing the blade tip of the turning tool at a second radial direction position so as to correct the error; and driving the second movement device to move the turning tool parallel to the rotational axis to turn the workpiece.

IPC Classes  ?

  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
  • B23B 5/00 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor
  • B23B 5/12 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathesCentreless turning for peeling bars or tubes by making use of cutting bits arranged around the workpiece
  • B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
  • B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness

66.

Stir pin, friction stir welding tool, and machine tool

      
Application Number 17710885
Grant Number 11938559
Status In Force
Filing Date 2022-03-31
First Publication Date 2022-07-21
Grant Date 2024-03-26
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Ouchi, Seigo
  • Matsubara, Eiji
  • Minatani, Masayasu
  • Murakami, Toru

Abstract

A stir pin includes a base end portion configured to be held rotatably about a first axis, a stirring portion provided to project from a shoulder member to be rotatable about the first axis together with the base end portion, and an intermediate portion including a second portion connected to the stirring portion to be rotatable about the first axis together with the stirring portion and having a second diameter passing through the first axis, and a first portion provided between and connected to the base end portion and the second portion to be rotatable about the first axis together with the base end portion and the second portion. The first portion has an end surface to which the second portion is connected and which has a maximum diameter larger than the second diameter. The end surface has a ring-shaped receiving surface configured to receive a material waste.

IPC Classes  ?

  • B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
  • B23K 20/26 - Auxiliary equipment

67.

ROTATIONAL SHAFT LOCK DEVICE, PROCESSING HEAD, AND COMPOSITE PROCESSING MACHINE

      
Application Number JP2020048836
Publication Number 2022/137538
Status In Force
Filing Date 2020-12-25
Publication Date 2022-06-30
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nakamura, Shinya
  • Sasaki, Hiroto
  • Sato, Kimihiko

Abstract

A rotational shaft lock device provided with: a rotational shaft that has an attachment part to which a tool is attached and a first contact surface, and is rotatable around a first axis; a first angular contact ball bearing that has an inner ring to be supported by the rotational shaft, an outer ring, and a plurality of balls arranged between the inner ring and the outer ring; a support member that has a second contact surface to come into contact with the first contact surface and thereby lock the rotation of the rotational shaft and that rotatably supports the rotational shaft via the first angular contact ball bearing; and a drive device that moves the rotational shaft and the inner ring relatively to the support member and the outer ring in a first direction parallel to the first axis such that the first contact surface comes into contact with the second contact surface and the preload acting on the plurality of balls is reduced.

IPC Classes  ?

  • B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
  • B23Q 5/04 - Driving main working members rotary shafts, e.g. working-spindles
  • F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load

68.

Laser machining apparatus

      
Application Number 17347597
Grant Number 11364576
Status In Force
Filing Date 2021-06-15
First Publication Date 2022-06-21
Grant Date 2022-06-21
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kageyama, Keisuke
  • Shimamoto, Kazuya
  • Hachiya, Keita

Abstract

A laser machining apparatus includes a chuck configured to hold a workpiece such that the workpiece is rotatable about a rotational axis, a first workpiece support provided on a first side with respect to the chuck in an axial direction along the rotational axis and configured to support a projected workpiece projecting from the chuck on the first side, and a parts catcher configured to receive a product when the projected workpiece is not supported by the first workpiece support and convey the product to a loading dock. The parts catcher includes a first catcher workpiece support configured to support the projected workpiece. In the axial direction, a first distance between the first catcher workpiece support and the chuck is shorter than a second distance between the first workpiece support and the chuck.

IPC Classes  ?

  • B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
  • B23K 26/08 - Devices involving relative movement between laser beam and workpiece

69.

SHEET METAL WORKING SYSTEM, LASER MACHINING APPARATUS, SHEET METAL WORKING METHOD, AND MACHINING REGION SETTING PROGRAM FOR LASER MACHINING

      
Application Number 17685379
Status Pending
Filing Date 2022-03-03
First Publication Date 2022-06-16
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Iryoda, Hikaru
  • Sakai, Yoshihiko
  • Nakamoto, Tetsuro

Abstract

A sheet metal working system includes a laser machining apparatus for processing a sheet metal in a laser machining region, a camera for photographing the laser machining region, an illuminator for illuminating the sheet metal, and circuitry configured to process an image photographed by the camera. The laser machining apparatus includes a sheet metal support member having a plate shape, the sheet metal support member having a plurality of elongated projections arranged in a first direction in a laser machining region. The sheet metal is disposed on the plurality of elongated projections. The camera is arranged such that the optical axis of the camera is oriented substantially parallel to the first direction when viewed in the height direction of the laser machining apparatus. The circuitry detects a bright region in the image as a machining available area of the sheet metal.

IPC Classes  ?

  • B23K 26/03 - Observing, e.g. monitoring, the workpiece
  • B23K 26/38 - Removing material by boring or cutting
  • G06V 10/141 - Control of illumination
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model

70.

TOOL STORAGE AND MACHINE TOOL

      
Application Number 17679096
Status Pending
Filing Date 2022-02-24
First Publication Date 2022-06-09
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Kintoki, Tomohiro
  • Ono, Seiya
  • Maekawa, Reiji
  • Ieda, Mitsumasa
  • Kinoshita, Keijiro
  • Yoshimoto, Kenji
  • Tanase, Masaki

Abstract

A tool storage includes a tool receiver, a tool magazine, and a tool carriage. The tool receiver is provided on a one side of a machine tool with respect to a workpiece holder of the machine tool along a machine tool direction and is configured to receive a tool from an outside of the machine tool. The tool magazine is provided on another side opposite to the one side with respect to the workpiece holder along the machine tool direction. The tool carriage is configured to carry the tool between the tool receiver and the tool magazine.

IPC Classes  ?

  • B23Q 3/155 - Arrangements for automatic insertion or removal of tools
  • B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools

71.

Method for producing integrally bladed rotor, program for cutting blade of integrally bladed rotor, and integrally bladed rotor

      
Application Number 17679106
Grant Number 11828182
Status In Force
Filing Date 2022-02-24
First Publication Date 2022-06-09
Grant Date 2023-11-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Harada, Yukihide
  • Fujita, Tetsuji

Abstract

A method for producing an integrally bladed rotor includes providing imaginary front and rear lattice points on the ridges of the front and rear edges; providing a first imaginary line on positive-pressure and negative-pressure surfaces to connect a first imaginary front lattice point and a first imaginary rear lattice point; providing a second imaginary line on the positive-pressure and negative-pressure surfaces to connect a second imaginary front lattice point next to the first imaginary front lattice point and a second imaginary rear lattice point next to the first imaginary rear lattice point; providing a spiral path on the positive-pressure and negative-pressure surfaces by connecting the first and second imaginary lines with a spiral curve; and cutting the positive-pressure and negative-pressure surfaces by moving a cutting point corresponding to a cutting edge of a turning tool along the spiral path. point around the blade.

IPC Classes  ?

  • G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
  • F01D 5/02 - Blade-carrying members, e.g. rotors

72.

CONTROLLER, MACHINE TOOL, CALCULATION METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

      
Application Number 17680294
Status Pending
Filing Date 2022-02-25
First Publication Date 2022-06-09
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Okuda, Toshihito
  • Yoshida, Ryo
  • Iseki, Akira
  • Suzuki, Yasuhiko

Abstract

A controller includes data collect circuitry configured to collect machining data including a date and a time when at least one machined portion of a workpiece has been machined by a machine tool, temperature circuitry configured to obtain, at predetermined time intervals, temperature data at positions on the machine tool, dimension data input circuitry configured to receive dimension measurement data which includes a dimension of the machined portion after the machined portion has been machined, learning data generate circuitry configured to generate learning data based on the machining data and the dimension measurement data, and machine learning circuitry configured to execute a machine learning based on the temperature data and the learning data to obtain a correction coefficient based on which a displacement caused by a change in a temperature of the machine tool is corrected according to a thermal displacement correction equation.

IPC Classes  ?

  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

73.

METHOD FOR PRESSING TAILSTOCK OF MACHINING DEVICE, PRESSING DEVICE, COMPUTER PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM

      
Application Number JP2020045309
Publication Number 2022/118474
Status In Force
Filing Date 2020-12-04
Publication Date 2022-06-09
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Tanaka, Naoya
  • Ryuta, Toraharu
  • Ueki, Hiroyuki
  • Hirose, Masaki
  • Sakai, Yuji
  • Sawamura, Nozomu
  • Kakehi, Shogo
  • Kusaka, Kazuya

Abstract

This method for pressing a tailstock of a machining device sets a target pressing force for pressing, to a workpiece mounted on a spindle, the tailstock in a first direction along a rotational axis of the spindle. An actuator, which controls moving of the tailstock and the pressing force for pressing the tailstock to the workpiece, is driven so that the tailstock is moved at a first speed in the first direction. When the pressing is detected, the moving of the tailstock is stopped. The tailstock is moved by a first distance in a second direction opposite to the first direction. The tailstock is moved at a second speed slower than the first speed in the first direction. When an input amount to the actuator is a value corresponding to the target pressing force during the tailstock moving at the second speed, the tailstock is stopped.

IPC Classes  ?

74.

Machine tool, tool load displaying method for machine tool, and non-transitory computer-readable storage medium

      
Application Number 17589899
Grant Number 12135537
Status In Force
Filing Date 2022-02-01
First Publication Date 2022-05-19
Grant Date 2024-11-05
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsui, Jun
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

A tool load displaying method for a machine tool includes inputting a machining program that specifies a plurality of tools used during machining work and that specifies machining processes which constitute the machining work and each of which is performed by using each of the plurality of tools. At least one piece of load information corresponding to each of the plurality of tools during each of the at least one machining process is calculated. Selected load information is selected from the at least one piece of load information. The plurality of tools are displayed.

IPC Classes  ?

  • G05B 19/4063 - Monitoring general control system
  • G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range

75.

MACHINE TOOL, TOOL LOAD DISPLAYING METHOD FOR MACHINE TOOL, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

      
Application Number 17589901
Status Pending
Filing Date 2022-02-01
First Publication Date 2022-05-19
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Matsui, Jun
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

A tool load displaying method includes displaying tools specified by a machining program and selectively displaying at least one of machining processes which are specified by the machining program and each of which is performed by using each of the tools. Load information and values of machining parameters in a selected machining process selected among the at least one of machining processes displayed are displayed. A selected tool is selected among the tools. A first selection window showing at least one replacement tool replaceable with the selected tool is displayed so as to select a selected replacement tool among the at least one replacement tool. A second selection window showing at least one machining process performed by using the selected tool is displayed so as to select among the at least one machining process, at least one selected replacement-tool machining process to be performed by using the selected replacement tool.

IPC Classes  ?

76.

ADDITIVE MANUFACTURING DEVICE, COMPOSITE PROCESSING DEVICE, CONTROL METHOD FOR ADDITIVE MANUFACTURING DEVICE, AND CONTROL PROGRAM FOR ADDITIVE MANUFACTURING DEVICE

      
Application Number JP2020041584
Publication Number 2022/097282
Status In Force
Filing Date 2020-11-06
Publication Date 2022-05-12
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Ouchi, Seigo
  • Asano, Kohei

Abstract

This additive manufacturing device comprises: a powder feeder configured to deliver a powder via a carrier gas; a head for discharging the powder; a first flow path for supplying the powder to the head from the powder feeder; a flow path switching valve provided in the middle of the first flow path; a reserve tank for receiving the powder delivered from the powder feeder; and a second flow path which connects the flow path switching valve with the reserve tank, and which allows the powder to flow to the reserve tank from the powder feeder. The flow path switching valve can alternatively switch whether to supply the powder from the powder feeder to the head or to the reserve tank. A first sensor is provided to the first flow path between the flow path switching valve and the head, and is configured to detect a first flow rate of the powder flowing to the head. A second sensor is provided to the second flow path and is configured to detect a second flow rate of the powder flowing to the reserve tank.

IPC Classes  ?

77.

LASER WORKING MACHINE AND METHOD FOR MAINTAINING LASER WORKING MACHINE

      
Application Number 17577332
Status Pending
Filing Date 2022-01-17
First Publication Date 2022-05-05
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Nakayama, Tomohisa
  • Sasaki, Satoshi
  • Kitamoto, Tetsuichi

Abstract

A laser working machine includes a first slot provided at another end portion of a first body. In the first slot, either one of a first shielding plate and a first light transmissive plate is selectively insertable in a sealed manner. The first shielding plate is configured to block a first optical path. The first light transmissive plate has a first optical path hole through which the first optical path and a second optical path are connectable. The laser working machine includes a second slot provided at a second body end portion of a second body. In the second slot, either one of a second shielding plate and a second light transmissive plate is selectively insertable in a sealed manner. The second shielding plate is configured to block the second optical path. The second light transmissive plate has a second optical path hole.

IPC Classes  ?

  • B23K 26/70 - Auxiliary operations or equipment
  • G02B 17/06 - Catoptric systems, e.g. image erecting and reversing system using mirrors only

78.

MACHINE TOOL, WORKPIECE SUPPORTING TOOL FOR MACHINE TOOL, METHOD FOR OPERATING MACHINE TOOL, AND PROGRAM

      
Application Number JP2020038244
Publication Number 2022/074810
Status In Force
Filing Date 2020-10-09
Publication Date 2022-04-14
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Suzuki, Atsushi
  • Ouchi, Seigo
  • Ishibashi, Kazuhiro

Abstract

A machine tool according to the present invention is equipped with: a table device that supports a workpiece; a first machining head that supports a wire in a state in which a leading end of the wire is exposed and adds a molten material generated from the leading end of the wire to the workpiece supported by the table device; a second machining head that supports a tool for cutting the workpiece supported by the table device; a power supply device that supplies an electric current to the wire; an electrically conductive block that is disposed on the table device and specifies the position of the leading end of the wire; a drive device that causes the first machining head to relatively move with respect to the table device such that the leading end of the wire exposed from the first machining head and the electrically conductive block disposed on the table device come into contact; and a first electrical circuit that can be switched from an opened state to a closed state by contact between the leading end of the wire exposed from the first machining head and the electrically conductive block disposed on the table device.

IPC Classes  ?

  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 15/00 - Electron-beam welding or cutting
  • B23K 26/34 - Laser welding for purposes other than joining

79.

Workpiece support device, unloading device, loading device, and workpiece machining apparatus

      
Application Number 17551044
Grant Number 11992913
Status In Force
Filing Date 2021-12-14
First Publication Date 2022-04-07
Grant Date 2024-05-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kageyama, Keisuke
  • Shimamoto, Kazuya
  • Hachiya, Keita

Abstract

A workpiece support device includes a shaft rotatable about a shaft rotation axis of the shaft, a first support, a first reciprocating mechanism, and a first connecting rod having one end and another end. The shaft extends along a longitudinal direction of a workpiece. The first support includes a first support roller that is rotatable about a first roller rotation axis orthogonal to the shaft rotation axis and that is configured to contact the workpiece to support the workpiece. The first reciprocating mechanism has one end connected to the first support and is configured to reciprocate in a first expansion-contraction axis direction. The one end of the first connecting rod is rotatably connected to the first support. The another end of the first connecting rod is connected to the shaft such that the another end of the first connecting rod is rotatable together with the shaft.

IPC Classes  ?

  • B23Q 7/05 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways
  • B23D 33/02 - Arrangements for holding, guiding, or feeding work during the operation
  • B23K 26/70 - Auxiliary operations or equipment

80.

Machine tool, method for editing machining program for machine tool, and non-transitory computer-readable storage medium

      
Application Number 17477537
Grant Number 11940769
Status In Force
Filing Date 2021-09-17
First Publication Date 2022-01-06
Grant Date 2024-03-26
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsuzawa, Hiroaki
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

A method for editing a machining program includes obtaining tool information specifying a tool mountable on a machine tool. A program editing window and at least one assistance window are displayed. The program editing window shows a program code of the machining program to control the machine tool. Each of the assistance window selectively shows the tool information and a control method. The tool is to be controlled according to the control method. In the program code, an insertion position at which a new code is to be inserted into the program code is specified. Selected information is selected from the tool information when the tool information is shown in the at least one assistance window. A command corresponding to the selected information is inserted into the program code at the insertion position.

IPC Classes  ?

  • G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

81.

LASER MACHINING DEVICE, LASER MACHINING SYSTEM, AND METHOD FOR ATTACHING CARTRIDGE

      
Application Number JP2020025066
Publication Number 2021/260895
Status In Force
Filing Date 2020-06-25
Publication Date 2021-12-30
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hatano, Kazuhiro
  • Kitamoto, Tetsuichi

Abstract

This laser machining device comprises a machining head, in which the optical path of laser light is disposed, and a cartridge inserted into the machining head. The machining head has: a pressing member that presses the cartridge; and a stopper surface that applies reaction force to the cartridge by restricting a movement of the cartridge pressed by the pressing member. The cartridge has: an optical component disposed on the optical path in a state in which the cartridge is inserted into the machining head; a first member making contact with a first surface of the optical component and the pressing member; and a second member making contact with a second surface of the optical component and the stopper surface.

IPC Classes  ?

  • B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms

82.

Machine tool, input assistance method for machine tool, and non-transitory computer-readable storage medium

      
Application Number 17393410
Grant Number 12066811
Status In Force
Filing Date 2021-08-04
First Publication Date 2021-11-25
Grant Date 2024-08-20
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kumasaka, Takuya
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

An input assistance method includes: a plurality of steps in which setting-information based on which the machine tool is configured to be controlled to machine a workpiece so as to make a product is input. A setting step in which a selected information is to be input is selected among the plurality of steps. The selected information of the plurality of steps constitutes the setting-information. A setting interface via which the selected information is input is displayed. Whether inputting the selected information has been completed is determined. Information indicating that inputting the selected information has been completed is displayed, when inputting the selected information is determined to have been completed. The plurality of steps includes a first step in which a shape of the product is input and a second step in which a shape of the workpiece and a material of the workpiece are input.

IPC Classes  ?

  • G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
  • G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
  • G05B 19/4063 - Monitoring general control system
  • G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

83.

Metal laminating and modeling method

      
Application Number 17178871
Grant Number 12186839
Status In Force
Filing Date 2021-02-18
First Publication Date 2021-08-26
Grant Date 2025-01-07
Owner Yamazaki Mazak Corporation (Japan)
Inventor
  • Sakai, Yasunori
  • Ishibashi, Kazuhiro
  • Tanaka, Yasuyuki
  • Suzuki, Atsushi
  • Ouchi, Seigo

Abstract

A metal laminating and modeling method includes a first inclination angle modeling step including a first inclination step of setting a table on which the metal layers are to be formed at a first table inclination angle and setting a welding torch at a first torch inclination angle and a first welding step of forming a weld bead that becomes a part of the modeled object by arc welding with the welding torch and a second inclination angle modeling step including a second inclination step of inclining the table at a second table inclination angle that is larger than the first table inclination angle and setting the welding torch at a second torch inclination angle and a second welding step of forming the weld bead.

IPC Classes  ?

  • B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
  • B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
  • B33Y 10/00 - Processes of additive manufacturing

84.

WORKPIECE MOUNTING METHOD FOR MACHINING APPARATUS, WORKPIECE MOUNTING SUPPORT SYSTEM, AND WORKPIECE MOUNTING SUPPORT PROGRAM

      
Application Number JP2020005889
Publication Number 2021/161530
Status In Force
Filing Date 2020-02-14
Publication Date 2021-08-19
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Horibe, Kazuya
  • Maruta, Kazumasa
  • Yamamoto, Hiromasa
  • Park, Hyunkoo
  • Itoh, Masatoshi
  • Mizukami, Ryuichi

Abstract

A workpiece mounting method for a machining apparatus comprising: acquiring a reference image that displays a reference workpiece, the orientation of which has been adjusted; setting a plurality of workpiece reference lines at a boundary of a first image area occupied by the reference workpiece in the reference image; acquiring a measured image that displays a workpiece; generating, by a processor, a measured synthesis image in which the plurality of workpiece reference lines are superimposed on the measured image such that the plurality of workpiece reference lines are respectively displayed at a plurality of positions identical to a plurality of workpiece reference line positions in the measured synthesis image; and adjusting the orientation of the workpiece such that a boundary of a second image area occupied by the workpiece in the measured synthesis image is substantially parallel to or substantially matches the plurality of workpiece reference lines.

IPC Classes  ?

  • B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
  • G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
  • G06T 7/00 - Image analysis
  • G05B 19/19 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
  • G05B 19/42 - Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
  • B23Q 15/22 - Control or regulation of position of tool or workpiece
  • G06T 1/00 - General purpose image data processing

85.

TABLE ROTATION DEVICE AND MACHINE TOOL

      
Application Number JP2019045432
Publication Number 2021/100143
Status In Force
Filing Date 2019-11-20
Publication Date 2021-05-27
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kimura, Jojiro
  • Tahara, Makoto
  • Sakai, Nobuhiro

Abstract

This table rotation device is provided with: a bearing assembly that has a fixed ring, a movable ring rotatable relative to the fixed ring about the axis of rotation, and a rolling element placed between the fixed ring and the movable ring; a table support member that is fixed to the movable ring and supports the table; a support block that is fixed to the fixed ring and rotatably supports the table support member about the rotation axis; and a cooling block that defines at least a portion of a cooling flow path through which cooling liquid can pass. The cooling block is fixed to the fixed ring or the support block so that the cooling block is in contact with both the fixed ring and the support block.

IPC Classes  ?

  • B23Q 1/01 - Frames, beds, pillars or like membersArrangement of ways
  • B23Q 1/40 - Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable membersMeans for preventing relative movement of such members using ball, roller or wheel arrangements

86.

Tool storage, machine tool, hybrid working machine

      
Application Number 17154979
Grant Number 11919107
Status In Force
Filing Date 2021-01-21
First Publication Date 2021-05-13
Grant Date 2024-03-05
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Horibe, Kazuya
  • Yoshida, Seiichi
  • Murakami, Keigo

Abstract

A tool storage includes a tool magazine, a magazine mover, and a storage device cover. The tool magazine includes a plurality of tool holding members which are provided in the tool magazine and which are configured to hold a tool. The magazine mover is provided outside the tool magazine and is configured to move the tool magazine in a moving direction between an exchange position at which the tool is exchanged and a storage position at which the tool is stored. The storage device cover is provided to arrange the tool magazine and the magazine mover in the tool storage. The plurality of tool holding members are arranged in the moving direction.

IPC Classes  ?

  • B23K 26/70 - Auxiliary operations or equipment
  • B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
  • B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

87.

Rotational force transmission mechanism, turret tool rest, and lathe

      
Application Number 17158007
Grant Number 11583932
Status In Force
Filing Date 2021-01-26
First Publication Date 2021-05-13
Grant Date 2023-02-21
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kijima, Tetsuya
  • Fujii, Yasuhiro
  • Tashiro, Yukimasa

Abstract

A rotational force transmission mechanism includes a shaft and an engagement member. The shaft is rotatable about a first axis. The shaft includes a leading end portion having a second groove and a first groove which is configured to receive a rotatable portion of a tool holder so that the shaft rotates the rotatable portion about the first axis. The engagement member is movable along the first axis between a first position and a second position and rotatable about the first axis together with the shaft. The engagement member includes an engagement portion configured to be received in the second groove. At least one of the shaft and the engagement member has an inclined surface that moves the engagement portion in a direction toward the first axis when the engagement member moves from the first position to the second position.

IPC Classes  ?

88.

SHEET METAL MACHINING SYSTEM, LASER MACHINING MACHINE, SHEET METAL MACHINING METHOD, AND MACHINING REGION SETTING PROGRAM FOR LASER MACHINING

      
Application Number JP2019042607
Publication Number 2021/084654
Status In Force
Filing Date 2019-10-30
Publication Date 2021-05-06
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Iryoda, Hikaru
  • Sakai, Yoshihiko
  • Nakamoto, Tetsuro

Abstract

This sheet metal machining system comprises a laser machining machine for machining a sheet metal inside a laser machining region, a camera for imaging the laser machining region, lighting for illuminating the sheet metal, and a processor for processing images imaged by the camera. The laser machining machine comprises a sheet-like sheet metal supporting member having a plurality of protrusions provided side by side in a first direction inside the laser machining region. The sheet metal is placed on the plurality of protrusions. The camera is disposed so that the optical axis of the camera faces in a direction substantially parallel to the first direction as seen from the height direction of the laser machining machine. The processor detects a bright region in the images as a sheet metal machining region.

IPC Classes  ?

  • B23K 26/38 - Removing material by boring or cutting
  • B23K 26/70 - Auxiliary operations or equipment

89.

STIRRING PIN, FRICTION STIR WELDING TOOL, AND MACHINE TOOL

      
Application Number JP2019039587
Publication Number 2021/070237
Status In Force
Filing Date 2019-10-08
Publication Date 2021-04-15
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Ouchi, Seigo
  • Matsubara, Eiji
  • Minatani, Masayasu
  • Murakami, Toru

Abstract

This stirring pin is provided with a base end portion held in a pin holder, a stirring portion capable of rotating about a first axis relative to a shoulder member, and an intermediate portion which is disposed between the base end portion and the stirring portion, and which is capable of rotating about the first axis together with the stirring portion. If the direction from the base end portion toward the stirring portion is defined as a first direction, the intermediate portion is provided with a first part, and a second part disposed on the first direction side of the first part. The first part is provided with a projecting portion which projects in a direction moving away from the first axis compared with the outer surface of the second part. Further, the surface of the projecting portion on the first direction side thereof defines an annular receiving surface for accepting waste material formed by frictionally stirring.

IPC Classes  ?

  • B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

90.

Machine tool, machining method using a machine tool, and machining program for machine tool

      
Application Number 17110286
Grant Number 11998990
Status In Force
Filing Date 2020-12-03
First Publication Date 2021-03-25
Grant Date 2024-06-04
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Hayashi, Kentaro
  • Sumida, Yasuharu
  • Kimura, Morikuni
  • Yoshida, Masato

Abstract

A machine tool includes a workpiece spindle being rotatable about a rotation axis of the workpiece and configured to hold a workpiece such that the workpiece. A tool holding device is rotatable about a tool rotation axis and configured to hold a turning tool via which turning is performed on the workpiece. A movement mechanism is configured to move the tool holding device such that the turning tool rotates relatively to the workpiece toward an arbitrary direction perpendicular to the rotation axis of the workpiece. Control circuitry is configured to execute a machining program, to perform the turning, which includes an additional code which designates a target cutting direction of the arbitrary cutting direction, and to control the movement mechanism to move the turning tool in the target cutting direction with respect to the workpiece while the control circuitry executes the additional code.

IPC Classes  ?

  • B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
  • B23B 23/00 - TailstocksCentres
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

91.

CONTROL DEVICE, MACHINE TOOL, CALCULATION METHOD, AND PROGRAM

      
Application Number JP2019034450
Publication Number 2021/044491
Status In Force
Filing Date 2019-09-02
Publication Date 2021-03-11
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Okuda, Toshihito
  • Yoshida, Ryo
  • Iseki, Akira
  • Suzuki, Yasuhiko

Abstract

The purpose of the present invention is to provide a device for automatically performing thermal displacement correction in a machine tool. Therefore, the present invention comprises: a machining data collection unit 67 for collecting machining data including the date and time at which at least one machining portion set as a learning object on a workpiece was machined by a machine tool; a temperature collection unit 29 for collecting, at prescribed time intervals, temperature data for a plurality of positions on the machine tool; a dimension data input unit 75 for inputting dimension measurement data obtained by measuring the post-machining dimensions of at least one machining portion; a learning data generation unit 85 for generating learning data including the machining data and the dimension measurement data; and a machine learning execution unit 95 for executing machine learning on the basis of the temperature data and the learning data and calculating a correction coefficient of a thermal displacement correction formula for correcting displacement due to temperature change in the machine tool.

IPC Classes  ?

  • G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
  • B23Q 15/18 - Compensation of tool-deflection due to temperature or force
  • G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme

92.

JAW REPLACEMENT DEVICE AND MACHINING CENTER

      
Application Number JP2019033836
Publication Number 2021/038777
Status In Force
Filing Date 2019-08-29
Publication Date 2021-03-04
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kintoki, Tomohiro
  • Ito, Tetsuya
  • Mori, Yuki
  • Myoren, Yuki

Abstract

A jaw replacement device according to the present invention comprises: a stocker that stores a jaw for mounting on a chuck body that is rotatable around an axis of rotation; a stocker movement mechanism that moves the stocker between a first position and a second position; and a jaw delivery device. The jaw delivery device is capable of delivering the jaw from a jaw-receiving device, for receiving the jaw, to the stocker at the first position. The jaw delivery device is also capable of delivering the jaw from the stocker at the second position to the chuck body.

IPC Classes  ?

  • B23B 31/39 - Jaw changers
  • B23B 31/16 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially

93.

TOOL STORING DEVICE AND MACHINING TOOL

      
Application Number JP2019033511
Publication Number 2021/038718
Status In Force
Filing Date 2019-08-27
Publication Date 2021-03-04
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kintoki, Tomohiro
  • Ono, Seiya
  • Maekawa, Reiji
  • Ieda, Mitsumasa
  • Kinoshita, Keijiro
  • Yoshimoto, Kenji
  • Tanase, Masaki

Abstract

This tool storing device is provided with: a tool receiving device disposed closer to a first direction side than a workpiece holding device of a machining tool and capable of receiving a tool from the outside of the machining tool; a tool magazine disposed closer to a second direction side than the workpiece holding device when the second direction is defined as the opposite direction to the first direction; and a tool conveying device which conveys the tool between the tool receiving device and the tool magazine.

IPC Classes  ?

  • B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools

94.

INTEGRALLY BLADED ROTOR MANUFACTURING METHOD, BLADE CUTTING PROGRAM FOR SAME, AND INTEGRALLY BLADED ROTOR

      
Application Number JP2019034196
Publication Number 2021/038848
Status In Force
Filing Date 2019-08-30
Publication Date 2021-03-04
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Harada Yukihide
  • Fujita Tetsuji

Abstract

The present invention is an integrally bladed rotor manufacturing method in which blades are machined, with high precision, by cutting. The integrally bladed rotor manufacturing method according to the present invention is a method for manufacturing an integrally bladed rotor in which three-dimensional plate-shaped blades, each having a positive pressure face and a negative pressure face as main faces, are integrated with a rotor disc. The method is characterized in that the ridge lines of the leading edge and the trailing edge of each blade are respectively divided into a prescribed number of sections so as to set a plurality of imaginary grid points, a closed curve that passes through the positive pressure face and the negative pressure face so as to loop around the imaginary grid points, closest to the rotor disc-side, on the leading edge and the trailing edge is set, a machining command is generated to move the cutting edge of a turning tool along a continuous spiral interpolated from the closed curve, and cutting in which a cutting point corresponding to the position of the cutting edge is moved around the blade according to the machining command is progressively performed.

IPC Classes  ?

  • F01D 5/34 - Rotor-blade aggregates of unitary construction
  • B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
  • F01D 5/12 - Blades
  • G05B 19/19 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path

95.

MACHINE TOOL, TOOL LOAD DISPLAY METHOD FOR MACHINE TOOL, AND PROGRAM FOR MACHINE TOOL

      
Application Number JP2019031242
Publication Number 2021/024437
Status In Force
Filing Date 2019-08-07
Publication Date 2021-02-11
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsui, Jun
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

This tool load display method for a machine tool includes: inputting a machining program that defines a plurality of tools used in machining work and at least one machining process in machining work by each tool of the plurality of tools; calculating, on the basis of the machining program, at least one piece of load information for each of the tools; and sequentially displaying the plurality of tools in accordance with a value of selected load information, which is one of the at least one piece of load information.

IPC Classes  ?

  • G05B 19/4063 - Monitoring general control system
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool

96.

MACHINE TOOL, METHOD FOR DISPLAYING TOOL LOAD OF MACHINE TOOL, AND PROGRAM FOR MACHINE TOOL

      
Application Number JP2019031243
Publication Number 2021/024438
Status In Force
Filing Date 2019-08-07
Publication Date 2021-02-11
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsui, Jun
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

This method for displaying a tool load of a machine tool involves: displaying a plurality of tools and one or more machining processes to be performed by the respective tools, defined by a machining program; displaying, when a to-be-performed machining process is selected from among the one or more machining processes that have been displayed, load information and values of cutting parameters for the to-be-performed machining process; changing, to a revised value, the value of at least one parameter among the displayed cutting parameters; recalculating the load information on the basis of the revised value; and displaying the recalculated load information.

IPC Classes  ?

  • G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
  • G05B 19/4069 - Simulating machining process on screen
  • G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine

97.

Controller for machine tool, machine tool, and method for controlling machine tool

      
Application Number 17074628
Grant Number 11314233
Status In Force
Filing Date 2020-10-20
First Publication Date 2021-02-04
Grant Date 2022-04-26
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Yamamoto, Hiromasa
  • Matsuda, Tatsuya
  • Kitayama, Jumpei
  • Yoshida, Kento
  • Itoh, Masatoshi

Abstract

A controller includes a determination circuit, a setting circuit, and a control circuit. The determination circuit is configured to determine whether a chatter vibration is occurring while a spindle is rotating and a workpiece is being cut. The setting circuit is configured to set an upper limit and a lower limit on a change amount of a rotational speed of the spindle. The control circuit is configured to determine the change amount randomly from a range between the upper limit and the lower limit and configured to rotate the spindle at a second rotational speed obtained by changing a first rotational speed by the change amount that has been determined if the chatter vibration is determined as occurring while the control circuit controls the rotational speed of the spindle at the first rotational speed.

IPC Classes  ?

  • G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion

98.

MACHINE TOOL, MACHINING PROGRAM EDITING METHOD FOR MACHINE TOOL, AND PROGRAM FOR MACHINING PROGRAM EDITING FOR MACHINE TOOL

      
Application Number JP2019028560
Publication Number 2021/014517
Status In Force
Filing Date 2019-07-19
Publication Date 2021-01-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Matsuzawa, Hiroaki
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

A machining program editing method for a machine tool. The machining program editing method involves: acquiring tool information for tools that can be installed on the machine tool; displaying a program editing image and at least one auxiliary image side by side, the program editing image displaying program code for a machining program that is for controlling the machine tool, and the at least one auxiliary image displaying the tool information about the tools and/or control methods for the tools; designating an insertion point at which code is to be newly inserted into the program code; and, when at least one piece of information from the tool information and the control methods has been selected at the at least one auxiliary image, inserting a command that corresponds to the at least one piece of information at the insertion point in the program code.

IPC Classes  ?

  • G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
  • G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine

99.

LASER MACHINE AND MAINTENANCE METHOD FOR LASER MACHINE

      
Application Number JP2019028558
Publication Number 2021/014516
Status In Force
Filing Date 2019-07-19
Publication Date 2021-01-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Nakayama, Tomohisa
  • Sasaki, Satoshi
  • Kitamoto, Tetsuichi

Abstract

This laser machine has, in an end section of a first body part, a first slot into which a first shielding plate for shielding a first optical path or a first light-transmissive plate having a first optical path hole that enables connection between the first optical path and a second optical path can be selectively inserted in a hermetic manner. The laser machine has, in a second body end section of a second body part, a second slot into which a second shielding plate for shielding the second optical path or a second light-transmissive plate having a second optical path hole that enables connection between the first optical path and the second optical path can be selectively inserted in a hermetic manner.

IPC Classes  ?

100.

MACHINE TOOL, INPUT ASSISTANCE METHOD FOR MACHINE TOOL, AND PROGRAM FOR MACHINE TOOL

      
Application Number JP2019028860
Publication Number 2021/014571
Status In Force
Filing Date 2019-07-23
Publication Date 2021-01-28
Owner YAMAZAKI MAZAK CORPORATION (Japan)
Inventor
  • Kumasaka, Takuya
  • Yamamoto, Yuuki
  • Katayama, Takuro
  • Kimura, Morikuni

Abstract

This input assistance method for this machine tool includes: displaying a plurality of steps for setting information of setting for controlling the machine tool in order to machine a workpiece to be a target article; selecting a setting step for setting the setting information from the steps; displaying a setting interface for setting the setting information corresponding to the setting step; determining whether all pieces of setting information that correspond to the setting step have been set through the setting interface; and displaying information indicating completion of setting corresponding to the setting step when it is determined that all the pieces of setting information corresponding to the setting step have been set.

IPC Classes  ?

  • G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
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