NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY (Japan)
Inventor
Watabe, Syuichi
Akiyama, Naoki
Sannomiya, Kazuhiko
Nakaya, Takaichi
Nakamoto, Keiichi
Takanami, Taichi
Taguri, Yuto
Abstract
Provided is a processing program generation device for generating a processing process and a processing program for a machine tool, the device comprising a spindle to which a cutting object is attached, a rotation mechanism for rotating the spindle, a cutting object feeding mechanism for moving the cutting object in a feeding direction with respect to the spindle, a tool holding unit for holding a cutting tool that cuts the cutting object, and a movement mechanism for moving the cutting tool in a direction intersecting the feeding direction of the spindle. The processing program generation device is provided with a processing area acquisition unit that acquires the difference between a material shape of the cutting object and a target shape as a processing area to be processed with the cutting tool, a processing area division unit that divides the processing area into a plurality of elements, and an order determination unit that determines a processing order of the plurality of elements, wherein the order determination unit determines the processing order such that, among the plurality of elements, the elements to be processed in a state in which the cutting object is attached to the spindle are processed in order starting from the element whose tip position in the feeding direction is farthest from the spindle.
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
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
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
2.
MACHINE TOOL, CHUCK GRIPPING FORCE DETECTION METHOD, AND CHUCK FASTENING AMOUNT SETTING METHOD
Provided is technology which enables suitable control of a chuck holding force. In this machine tool comprising a main shaft provided with a chuck for holding a workpiece, when an open/close mechanism has performed a closing operation on the chuck such that the chuck enters a closed state from an open state, a holding force of the chuck on the workpiece in the closed state is acquired on the basis of the magnitude of a difference between a first time taken from when a control unit emits a control signal for the closing operation to the open/close mechanism to when a first sensor detects that the chuck is no longer in the open state, and a second time taken from when the control unit emits a control signal in an open/close mechanism to when a second sensor detects that the chuck has entered the closed state.
A workpiece transfer device includes a base unit extending in a first direction, a housing unit disposed upright from the base unit in a second direction orthogonal to the first direction, a slide unit disposed at a housed position to be housed in the housing unit, a slide unit-moving mechanism configured to move the slide unit from the housed position, a linear guide unit configured to guide the slide unit in the second direction, and a workpiece grasp unit disposed on a first surface of the slide unit near an end of the slide unit remote from the base unit and configured to grasp a workpiece W. A separation distance between the base unit and an end of the workpiece grasp unit adjacent to the base unit is less than a separation distance between the base unit and the end of the slide unit remote from the base unit.
B23B 13/02 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a single working-spindle
B23Q 5/38 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
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
A machine tool 1 includes tool holding parts 31 and 32 that hold tools 21 and 22, a first main shaft 11 that grips a workpiece W and is capable of rotating the gripped workpiece W in a first rotation state which enables lathe-turning along a first direction of the workpiece, a second main shaft 12 that grips the workpiece W and is capable of rotating the gripped workpiece W in a second rotation state which, different to the first rotation state, enables lathe-turning along an extending direction in a second direction of the workpiece different from the first direction, and a control part 16 that controls the first main shaft 11, the second main shaft 12, and tool holding parts so that the workpiece W is lathe-turned by the tools 21 and 22 held by a tool holding part 15.
A machine tool includes a current detector that detects a plurality of current values inputted into a first servo motor and a second servo motor, a storage that stores normal time-varying changes in current values inputted into the first servo motor and the second servo motor in a predetermined step among a series of tool exchanging steps performed between a rotary tool device and an automatic tool changer, and a determination unit that determines whether the predetermined step is performed normally by comparing the plurality of current values detected by the current detector in the predetermined step with the normal time-varying changes in current values.
B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools
B23Q 3/155 - Arrangements for automatic insertion or removal of tools
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
A machine tool includes a driver that drives a main spindle for holding a workpiece rotatably, a servo motor that drives a tool for machining the workpiece held on the main spindle, a power source that supplies electric power to at least the driver and the servo motor, a current detector that detects a current value to be inputted into the servo motor, a storage that stores an upper limit of the current value to be inputted into the servo motor, and a controller that controls the servo motor to execute driving control of the tool. When a current value detected by the current detector exceeds the upper limit of the current value immediately after starting the main spindle, the controller changes an acceleration/deceleration time constant from a first time constant to a second time constant that is lower in power consumption than the first time constant, thereby controlling the servo motor.
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
When a tool that does not rotate is mounted on a tool base capable of rotating the tool via a wheel train having backlash and is used with the tool being stopped, the present invention, in order to prevent rattling due to the backlash of the tool without having a complicated structure, comprises: a spindle (33) that detachably holds a cutting tool (85) in the direction of an axis (C3); a gear wheel train (33) that transmits rotation to the held cutting tool (85); a draw bar (34) that moves the cutting tool (85) in the direction of the axis (C3); and a piston (36) that is movably provided in the direction of the axis (C3), between the rearmost position and the front-most position. Couplings (protruding and recessed shapes (36c, 34c)) that integrally rotate in the contacted state are formed at the piston (36) and the draw bar (34). The piston (36) is stopped at an intermediate position between the rearmost position and the front-most position.
A machine tool has a front spindle that rotatably holds a bar, a front spindle drive motor that rotationally drives the front spindle, an encoder that detects a rotation angle of the front spindle drive motor, a rotary guide bush that is installed on a guide bush support in front of the front spindle to support the bar extending from the front spindle while allowing the bar to rotate around a rotation axis and move in a rotation axis direction and rotate synchronously with the front spindle, a back spindle that is arranged opposite to the front spindle and rotatably holds the bar, a back spindle drive motor that rotationally drives the back spindle, and a controller that controls operations of the front spindle and the back spindle.
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
A machine tool is provided, which cuts a workpiece W by concurrently vibrating and moving the workpiece and a tool relatively by using a movement mechanism and a vibration mechanism while rotating a spindle by using a rotation mechanism, and which includes a determination means for determining the degree of wear of a distal end of the tool from a difference between a force component during a forward stroke and a force component during a return stroke in relative vibration of the workpiece and the tool. The force component is a force component of a force that is received by the tool from the workpiece and that is in a direction parallel to the direction of movement by the movement mechanism.
B23B 13/02 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a single working-spindle
10.
TOOLING REPLACEMENT MECHANISM AND MACHINE TOOL PROVIDED WITH SAME
Provided are: a tooling replacement mechanism that has a high degree of freedom of arrangement of a turret within a processing chamber; and a machine tool provided with the tooling replacement mechanism. The present invention is provided with: a tooling retention unit 100 that is attached to a turret 12 and detachably retains tooling T for processing a workpiece W; and a tooling replacement device 200 that is disposed to the rear of the turret 12 and outside a processing chamber 10a, that moves in an anteroposterior direction, and that houses the tooling T. The tooling replacement device 200 comprises a tooling magazine 230 that houses the tooling T and a tooling detachment unit 240 that causes the tooling retained by the tooling retention unit 100 to detach from the tooling retention unit 100. In a state in which the tooling T retained by the tooling retention unit 100 is gripped by the tooling magazine 230 of the tooling replacement device 200, the tooling T is detached from the tooling retention unit 100 outside the processing chamber 10a.
Provided are: a machine tool that is able to keep gripping a workpiece by a collet chuck even when the grip force of the collet chuck on the workpiece is weakened due to wear or the like of a bobbin or chuck jaws; and a control method for said machine tool. A bobbin 160 has an outer diameter (outer circumferential surface 161a, large-diameter outer circumferential surface 161b) that changes along the axial direction of a main shaft 110. The present invention has: a gripping-state detection unit 181 which detects the state of gripping by a collet chuck 140; and a drive control unit 182 that moves, on the basis of a detection result provided by the gripping-state detection unit 181, the bobbin 160 back and forth by controlling a servo motor 150 so that the chuck jaws 170 make contact with a prescribed portion in the outer diameter of the bobbin 160.
B23B 31/20 - Longitudinally-split sleeves, e.g. collet chucks
B23B 31/00 - ChucksExpansion mandrelsAdaptations thereof for remote control
B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
B23Q 17/00 - Arrangements for indicating or measuring on machine tools
This machine tool (1) comprises: a front main shaft (11) capable of gripping a first member (W1); a rear main shaft (12) capable of gripping a second member (W2); and a guide bush device (13) disposed between the front main shaft (11) and the rear main shaft (12). The first member (W1) gripped by the front main shaft (11) and the second member (W2) gripped by the rear main shaft (12) are rotated relative to each other and brought into contact with each other to generate frictional heat at joining surfaces (CS) of the first member (W1) and the second member (W2) and the members are frictionally joined. The guide bush device (13) guides an outer peripheral surface (OS1) of the first member (W1) without guiding an outer peripheral surface (OS2) of the second member (W2) when the contact between the first member (W1) and the second member (W2) during relative rotation starts, and guides the outer peripheral surface (OS2) of the second member (W2) when pressing the first member (W1) and the second member (W2).
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
13.
TOOL CUTTING EDGE POSITION DETECTION DEVICE AND MACHINE TOOL
In order to detect the position of a cutting edge of a tool in a state in which chips do not adhere, a cutting edge position detection device (30) includes: an ejector rod (22) and a tip receiving part (23) that are disposed inside a back main shaft (20) and that can move so as to press and discharge a workpiece (W); a servo motor (28); a back headstock (70); and a control unit (90) that controls the servo motor (28) on the basis of a detection result of an encoder (28b) of the servo motor (28). The control unit (90) controls the back headstock (70) so as to move the back main shaft (20) toward a cutting edge (51a) of a tool (51) in a state in which the ejector rod (22) and the tip receiving part (23) are moved to a standby position, and detects retraction of the ejector rod (22) when the cutting edge (51a) comes into contact with a front end surface (23a) of the tip receiving part (23), and the control unit (90) detects the position of the cutting edge (51a) on the basis of the position of a distal end surface (20A) of the back main shaft (20).
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
B23B 49/00 - Measuring or gauging equipment on boring machines for positioning or guiding the drillDevices for indicating failure of drills during boringCentring devices for holes to be bored
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 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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
To detect a workpiece (presence or absence of workpiece, length of workpiece) on a spindle without using a torque variation in a servo-equipped actuator, a workpiece detection device (30) comprises: an ejector rod (22) which is disposed inside a back spindle (20) that grips a workpiece (W) and which can be moved to press to eject the workpiece (W) to the outside; a servo motor (28) having a drive unit (28a) for moving the ejector rod (22) and an encoder (28b); and a control unit (60) that controls the drive unit (28a) on the basis of a detection result of the encoder (28b), wherein the control unit (60) moves the ejector rod (22) to a standby position, the encoder (28b) detects a movement when the workpiece (W) moves the ejector rod (22), and the control unit (60) calculates the presence or absence of the workpiece (W) on the basis of the movement.
B23B 15/00 - Arrangements for conveying, loading, adjusting, reversing, chucking, or discharging workpieces specially designed for automatic or semi-automatic turning-machines
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
B23B 31/00 - ChucksExpansion mandrelsAdaptations thereof for remote control
In order to improve the accuracy of the stop position of a turret after rotation, a turret lathe (100) comprises: a drive unit (25) to which a tool holder (T) including a tool (t) is attached and which rotates a turret (22) having 12 turret surfaces (23) about an axis (C2); a control unit (34) that controls operation of the drive unit (25); a reception unit (31) that receives an input of information regarding a tool layout specifying an arrangement state where the tool holder (T) is attached; a center-of-mass position calculation unit (32) that calculates the center-of-mass position (M') of the turret (22) in the tool layout on the basis of the inputted information regarding the tool layout, information regarding the weight and the center-of-mass position of the attached tool holder (T), and information regarding the weight and the center-of-mass position of the turret (22) alone; and an eccentricity calculation unit (33) that calculates the eccentricity amount (δ) of the center-of-mass position (M') with respect to the axis (C2). The control unit (34) controls the rotation speed of the turret (22) on the basis of the eccentricity amount (δ).
A machine tool includes a spindle that is placed on a bed and grips a workpiece, a first slide mechanism including a first rail that is fixed to the bed and extends in a first direction intersecting a spindle direction in which the spindle extends and a first table that is slidable along the first rail, a second slide mechanism including a second rail that is provided on the first table of the first slide mechanism and extends in a second direction intersecting the spindle direction and the first direction and a second table that is slidable along the second rail, a tool post that is placed on the second table of the second slide mechanism and holds a tool for machining the workpiece, a cover that covers the spindle, the first slide mechanism, the second slide mechanism and the tool post, and a controller.
Provided is a technique capable of suppressing occurrence of failure in friction welding and improving accuracy of quality determination of a joint state. Provided is a friction welding device that joins a first workpiece and a second workpiece by bringing the first workpiece and the second workpiece into contact with each other in a state in which the workpieces are rotated relative to each other, wherein, in a first friction heating period that is a predetermined period immediately after the first workpiece and the second workpiece come in contact with each other, an electric current that flows to a first drive source of a first drive mechanism that moves a first spindle for gripping the first workpiece in the axial direction, and a second drive source of a second drive mechanism that moves a second spindle that grips the second workpiece in the axial direction is limited to a first limit value or less that is smaller than a second limit value for limiting the electric current flowing to the first drive source and the second drive source in a second friction heating period after the first friction heating period has elapsed.
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
18.
MACHINE TOOL, AND METHOD FOR CONTROLLING MACHINE TOOL
This machine tool holds measurement probes and causes the measurement probes to come into contact with an object to be cut, to measure dimensions of the object to be cut. The machine tool is characterized in that the machine tool comprises a main spindle to which the object to be cut is attached, a plurality of holding portions capable of holding the measurement probes, a receiver for receiving signals transmitted after the measurement probes have come into contact with the object to be cut, and a control unit for controlling the operations of the plurality of holding portions, and in that: the control unit moves one of the plurality of holding portions; and if the receiver receives a signal from a measurement probe that is not associated with any of the plurality of holding portions, the control unit associates the moved holding portion with the measurement probe that transmitted the signal to the receiver, on the basis of the signal received by the receiver.
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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 19/401 - 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 measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
Provided is a guide bush device that is easy to apply to a machine tool and that can appropriately support a workpiece that is being machined while being held by a main spindle. The guide bush device (70) is provided on a first turret tool post (20) so as to be capable of moving relative to the main spindle in at least a Z-axis direction along an axis of the spindle and an X-axis direction intersecting the axis. The guide bush device (70) is a rotary guide bush comprising a guide bush sleeve (72) and a guide bush (73). The guide bush sleeve (72) and the guide bush (73) of the rotary guide bush are controlled so as to be capable of rotating synchronously with the rotation of the main spindle, and are thereby configured to guide the workpiece (W), which is being fed out by means of the main spindle, while rotating.
This rotating tool device comprises: first and second tool holding portions for rotatably holding tools; a turning drive force generating portion for generating a turning drive force for turning the first and second tool holding portions; a first turning mechanism for holding the first tool holding portion and turning the first tool holding portion in a turning direction perpendicular to an extension direction of a main shaft in response to the turning drive force being supplied thereto; a second turning mechanism for holding the second tool holding portion and turning the second tool holding portion in the turning direction in response to the turning drive force being supplied thereto; and a turning drive force transmission member for transmitting the turning drive force supplied to the first tool holding portion to the second tool holding portion. The first turning mechanism further comprises a turning drive force supply portion to which the turning drive force is supplied from the turning drive force generating portion. The turning drive force supply portion is disposed between the first tool holding portion and an end of the first turning mechanism that is farthest away from the first tool holding portion in the turning direction.
This machine tool comprises: a main spindle to which a cutting object 21 is attached; a rotating mechanism which rotates the main spindle; a tool holder which holds a tool; a movement mechanism which moves the main spindle and the tool holder relative to each other in the rotational axis direction of the main spindle; a vibrating mechanism which vibrates the main spindle and the tool holder relative to each other in a vibration direction; and a control unit which controls the rotating mechanism and the vibrating mechanism. The machine tool cuts the cutting object 21 by vibrating and moving the cutting object 21 and the tool relative to each other by means of the movement mechanism and the vibrating mechanism while rotating the main spindle by means of the rotating mechanism. The control unit drives the rotating mechanism and the vibrating mechanism such that the tool is positioned in the same position in the vibration direction for every constant rotational period of the main spindle, and performs control on the rotating mechanism and the vibrating mechanism such that, when viewed in the rotational axis direction, the outer circumference surface or the inner circumference surface of the cutting object 21 is machined into a substantially regular polygon.
B23B 5/36 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
G05B 19/4093 - 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
B23Q 5/50 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding step by step
22.
DEVICE FOR CORRECTING THERMAL DISPLACEMENT OF MACHINE TOOL
In order to improve the accuracy of correction on thermal displacement in a device for correcting thermal displacement of a machine tool, a thermal displacement correction device (100) comprises: temperature sensors (Si) installed at a plurality of portions of an automatic lathe (200); a storage unit (30) that stores a plurality of data tables (31) set respectively corresponding to a plurality of mutually different environment conditions, as correspondence relationships between temperature distributions of the automatic lathe (200), detected by the temperature sensors (Si) corresponding to machining under machining conditions, and the thermal displacement amounts of the position of the tool of the automatic lathe (200); a comparative selection unit (20) that selects the data table (31) having a temperature distribution close to the temperature distribution detected when the automatic lathe (200) has performed machining at a site; a thermal displacement estimation unit (40) that estimates a thermal displacement amount on the basis of the selected data table (31) and the detected temperature distribution; and a correction command unit (50) that outputs a thermal displacement correction amount that cancels the estimated thermal displacement amount to correct the position of the tool.
B23Q 15/18 - Compensation of tool-deflection due to temperature or force
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
23.
WORKPIECE CARRY-IN/OUT DEVICE AND CONTROL METHOD FOR WORKPIECE CARRY-IN/OUT DEVICE
In order to narrow the operating region on a pallet side of a robot in a workpiece carry-in/out device, this workpiece carry-in/out device (100) includes: an arrangement unit (301) where two pallets (310) storing workpieces (10) are arranged; a pallet moving unit (302) that moves the pallets (310); an arm unit (120) that moves between an automatic lathe (200) for processing the workpieces (10); a hand unit (120) that receives the workpieces (10) between the pallets (310) and the automatic lathe (200); and a control unit (130), wherein the control unit (130) controls the arm unit (110) so as to move in a range which combines a first range S1 where the hand unit (120) reaches the entire area of a first pallet (310), and a second range S2 where the hand unit (120) reaches only a portion of a second pallet (310), and the control unit controls the pallet moving unit (302) such that, during a period in which the arm unit (120) is separated from the second pallet (310), the first pallet (310) is carried out, and the second pallet (310) is moved to a first position P1.
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 7/00 - 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
Provided is technology which enables suitable control of a chuck gripping force. In this machine tool comprising a main shaft provided with a chuck for gripping a workpiece, when an open/close mechanism has performed a closing operation on the chuck such that the chuck enters a closed state from an open state, a gripping force of the chuck on the workpiece in the closed state is acquired on the basis of the magnitude of a difference between a first time taken from when a control unit emits a control signal for the closing operation to the open/close mechanism to when a sensor detects that the chuck is no longer in the open state, and a second time taken from when the control unit emits a control signal in an open/close period to when the sensor detects that the chuck has entered the closed state.
This workpiece transfer device comprises: a base unit extending in a first direction; an accommodation unit disposed upright from the base unit in a second direction orthogonal to the first direction; a slide unit disposed at an accommodation position for accommodation in the accommodation unit; a slide unit movement mechanism that moves the slide unit from the accommodating position; a linear guide unit that guides the slide unit in the second direction; and a workpiece holding unit that is disposed on a first surface of the slide unit in the vicinity of the end of the slide unit opposite from the base unit, and holds a workpiece W. The separation distance between the end of the workpiece holding unit on the base unit side and the base unit is less than the separation distance between the end of the slide unit opposite from the base unit and the base unit.
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
26.
MACHINE TOOL, POSITION INFORMATION CORRECTION METHOD, AND POSITION INFORMATION CORRECTION PROGRAM
A machine tool has a spindle configured to rotatably grip a workpiece, a turret configured to mount a tool for processing the workpieces, a movable body configured to move independently from the spindle and the turret, a contact type sensor configured to move in accordance with a movement of the movable body, and a controller configured to calculate center position information indicating a center position of the spindle based on spindle position information acquired via the sensor moved to the vicinity of the workpiece by moving the movable body, wherein the controller acquires cutting edge position information indicating a position of a cutting edge of the tool via the sensor by moving the movable body, and corrects the cutting edge position information based on the center position information.
This machine tool comprises: a drive unit that drives a main spindle for rotatably holding a workpiece; a servo motor that drives a tool for machining the workpiece held on the main spindle; a power source that feeds power to at least the drive unit and the servo motor; a current detection unit that detects a current value to be inputted to the servo motor; a storage unit that stores an upper limit current value to be inputted to the servo motor; and a control unit that controls the servo motor to execute driving-control for the tool. The control unit executes, when the current value detected by the current detection unit exceeds the upper limit value immediately after activation of the main spindle, control for the servo motor by changing an acceleration/deceleration time constant from a first time constant to a second time constant that is lower in power consumption than the first time constant.
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
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
28.
MACHINE TOOL AND METHOD FOR CONTROLLING MACHINE TOOL
Provided are a machine tool and a method for controlling a machine tool, the machine tool automatically adjusting the gap between a rotary guide bush and a rod member when the machine tool has a structure in which the degree of opening of the rotary guide bush is adjusted by means of an adjusting nut and the rotary guide bush rotates synchronously with a front spindle. A rotary guide bush 140 includes an adjusting nut 145 that is screwed onto the guide bush body 144 and that, when adjusting the gap between a rod member W and the guide bush body 144, adjusts the size of the gap by rotating the guide bush body 144. A control device 180 includes a guide bush opening determination unit 181b that determines the amount of adjustment of the gap on the basis of the rotation angle of a front spindle 120 when a back spindle 160 is rotated in a state in which the rod member W is held by the back spindle 160 and a front spindle drive motor 123 is not energized.
The present invention comprises: a current detection unit that detects a plurality of current values input to a first servo motor and a second servo motor; a storage unit that stores changes over time in a plurality of normal-time current values input to the first servo motor and the second servo motor in a predetermined step among a series of tool replacement steps which are performed with a rotary tool device and an automatic tool replacement device; and a determination unit that determines whether or not the predetermined step is being performed normally by comparing the plurality of current values detected by the current detection unit in the predetermined step with the changes over time in the plurality of normal-time current values.
B23Q 3/155 - Arrangements for automatic insertion or removal of tools
B23Q 17/00 - Arrangements for indicating or measuring on machine tools
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
30.
Tooling exchange mechanism and machine tool having the tooling exchange mechanism
B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools
B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
B23B 29/34 - Turrets equipped with triggers for releasing the cutting tools
B23B 31/06 - Features relating to the removal of tools or workAccessories therefor
B23B 31/107 - Retention by laterally-acting detents, e.g. pins, screws, wedgesRetention by loose elements, e.g. balls
B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
B23Q 3/155 - Arrangements for automatic insertion or removal of tools
B23B 29/32 - Turrets adjustable by power drive, i.e. turret heads
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
An automatic lathe includes a front main spindle holding a workpiece and a turret including a peripheral surface, the peripheral surface being divided into a plurality of turret surfaces, tools being mounted on the turret surfaces, the turret machining the workpiece with any of the tools selected by turning about a Z axis, wherein at least one turret surface of the turret surfaces of the turret has a distance from the Z axis shorter than that of the other turret surfaces.
Provided is a machine tool in which, while a main shaft is rotated by a rotation mechanism, a cutting object W and a tool are moved while being caused to vibrate, relative to each other, by a movement mechanism and a vibration mechanism, and the cutting object is thereby cut, the machine tool being characterized by comprising a determination means for determining, for force components in the direction parallel to the direction of movement by the movement mechanism from among forces received by the tool from the cutting object, the degree of wear of a tip of the tool from the difference between a force component during outward travel and a force component during return travel in the relative vibration of the cutting object and the tool.
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
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
The present invention provides a machine tool in which, even during a return-to-origin operation, a machining table does not interfere with a main shaft or a cover in a state where a cutting tool rest is retracted with respect to the main shaft in the main shaft direction. Provided is a machine tool 100 comprising an X direction sliding mechanism 150 which has an X direction rail 151 that is fixed to a bed 110 and that extends in an X direction intersecting a Z direction in which a main shaft 140 extends, and an X table 152 that is slidable along the X direction rail 151, a Y direction sliding mechanism 170 which has a Y direction rail 171 that is provided on the X table 152 and that extends in a Y direction intersecting the Z direction and the X direction and a Y table 172 that is slidable along the Y direction rail 171, and a control device 190 which controls driving of the X direction sliding mechanism 150 and the Y direction sliding mechanism 170, wherein a Y table positioning control unit 194a performs positioning of the Y table 172 with respect to the Y direction rail 171 in a state where the X table 152 is positioned in a non-interference region.
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 11/00 - 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 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
34.
Machining device, machining method and cutting tool
A machining device threads a workpiece by relatively rotating the workpiece and a multi-blade tool and relatively moving them along a feed direction to perform cutting processes in the radial direction of the workpiece along the same cutting path in a predetermined spiral form. A controller performs a groove machining to form a threaded portion with vibration in the radial direction of the workpiece and a finish machining to form the threaded portion by bringing the multi-blade tool into contact with the grooved portion of the workpiece. The multi-blade tool has a first cutting blade and a second cutting blade arranged side by side along the feed direction. The controller sets amplitude of a vibration waveform to a value at which a cutting edge of the second cutting blade does not come into contact with the screw bottom surface of the workpiece in the finish machining.
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23B 25/02 - Arrangements for chip-breaking in turning-machines
B23G 9/00 - Working screws, bolt heads or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanksFinishing, e.g. polishing, any screw thread
B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
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
35.
MACHINE TOOL AND CONTROL METHOD AND CONTROL PROGRAM THEREOF
A machine tool according to the disclosure has a spindle rotatably holding a cylindrical workpiece, a turret holding a thread whirling tool having a cutter ring having a base on which a through hole is formed and a plurality of types of cutting tools disposed on the inner diameter side of the base and having different shapes, so as to rotatably holds the cutter ring, a controller controlling rotations and relative movements of the spindle and the turret, wherein the controller has the spindle hold a workpiece, disposes the workpiece in the through hole so that the workpiece penetrates the through hole, rotates at least one of the cutter ring and the workpiece, and switches movements of the thread whirling tool in an extending direction of the workpiece and a direction intersecting with the extending direction thereof based on a selected predetermined cutting tool.
A chuck device for holding a plate material workpiece supplied to a machine tool without deforming the workpiece is provided. A housing has a workpiece contact surface arranged to face workpiece holding claws, and when holding of a workpiece is released, a plurality of rods integrally swings so that the workpiece holding claws are moved away from the workpiece contact surface of the housing and moved away from each other, and when holding the workpiece, after the plurality of rods integrally swing so that the workpiece holding claws are brought close to the workpiece contact surface of the housing and brought close to each other, the plurality of rods moves integrally in parallel with the forward/backward moving direction of a drive body to bring the workpiece holding claws into contact with the workpiece.
B23B 31/18 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in planes containing the axis of the chuck
B23B 31/19 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving parallel to the axis of the chuck
A machine tool and a controller for the machine tool that accurately detect a defect in a cutting-off process due to breakage of a cutting-off bit and the like is provided. The machine tool includes: a spindle 110 for holding one end side of a workpiece W; an opposed chuck 131 that is opposed to the spindle 110 and is movable with holding another end side of the workpiece W; and a spindle moving motor 122 for moving the spindle 110. The machine tool or the controller is provided with a load detector 172 for detecting a load of the spindle moving motor 122, and workpiece separation detector 173 for detecting a defect in a cutting-off process from the load in performing a taking out operation.
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
A tool information setting device includes: a first storage portion in which a tool holder number and a torque limiting value of tool information, which are associated with each other, are stored; a second storage portion in which a turret face number and a tool holder number, which are associated with each other, are stored; and a torque limiting value setting portion as a tool information setting portion that acquires the tool holder number from the second storage portion based on the turret face number described in the machining program. The torque limiting value setting portion acquires a torque limiting value from the first storage portion based on the acquired tool holder number when selecting a predetermined tool by the turret face number of the turret on which the predetermined tool is mounted.
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
A machine tool includes: a joint portion processing control for controlling the processing of the joint portion in a joined workpiece such that a first workpiece is gripped by a grip section, and a predetermined region extending from a joint portion of a joined workpiece toward a second workpiece is processed over a range of not less than a predetermined width to have an outer diameter of not more than an outer diameter of the first workpiece; and a movement control for controlling the movement of the joined workpiece so as to slidingly move the joined workpiece relative to the support section, from a state in which the first workpiece is supported by the support section, up to a state in which the second workpiece is supported by the support section.
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23B 11/00 - Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling
B23B 13/04 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a plurality of 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
B23K 37/08 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for flash removal
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
B23B 5/08 - 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
Provided are a coolant supply device and a machine tool in which ejection of a coolant is easily switched on and off. A coolant supply device 10 for supplying a coolant to a workpiece machining area in a machine tool, the coolant supply device comprising: a rotary nozzle 40 formed to have a cylindrical shape and having, at an outer circumferential face thereof having the cylindrical shape, an ejection port 51 for ejecting the coolant; and a supply device body 20 rotatably supporting the rotary nozzle and configured to be capable of supplying the coolant to the rotary nozzle. The supply device body is configured to be capable of switching an ejection allowed range in which the ejection port is opened and an ejection stopped range in which the ejection port is blocked from each other in accordance with rotation of the rotary nozzle.
B23Q 11/10 - Arrangements for cooling or lubricating tools or work
B05B 1/04 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops in flat form, e.g. fan-like, sheet-like
A machine tool and a control device for the machine tool for shortening the machining time of a workpiece in a case where the relative and reciprocal vibration of workpiece holder and tool post in the radial direction of the workpiece is stopped during a period from an initial point until when the workpiece and the cutting tool come into contact with each other is provided. In the machine tool, when threading the workpiece to form a threaded portion on the workpiece by relatively moving the workpiece and the cutting tool in the feed direction while relatively rotating the workpiece and the cutting tool 130 to perform multiple times of cutting processes along the same cutting path in a predetermined spiral form, the cutting tool is brought closer toward the workpiece in the feed direction from a predetermined initial point at which the workpiece and the cutting tool are separated from each other, the workpiece and the cutting tool come into contact with each other, and the threading is started with the contact. During the period from the initial point until when the workpiece and the cutting tool come into contact with each other, a controller stops the vibration of the cutting tool, and, in continuous cutting processes in the multiple times of cutting processes in the threading, the control means sets a phase position of the tool post in the vibration direction and stops the reciprocal vibration so that, when the workpiece and the cutting tool come into contact with each other, each of the continuous cutting processes has a predetermined phase in the reciprocal vibration relative to a rotation phase of the workpiece at the start of the threading.
B23G 1/02 - Thread cuttingAutomatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
B23Q 15/013 - Control or regulation of feed movement
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
B23B 25/02 - Arrangements for chip-breaking in turning-machines
A cutting fluid tank configured to recover cutting fluid from a machine tool includes a first parallel passage and a second parallel passage configured to recover the cutting fluid discharged from the machine tool and parallelly arranged to each other, and a communication passage configured to communicate the first parallel passage and the second parallel passage at ends of the first parallel passage and the second parallel passage, wherein the cutting fluid tank flows the cutting fluid through the first parallel passage and the second parallel passage in opposite directions to each other, and supplies the cutting fluid from the end of the second parallel passage to the machine tool, two inflow and outflow portions are adjacently arranged configured to flow the recovered cutting fluid to the first parallel passage, and each of inflow and outflow portions formed so as to flow the cutting fluid from different direction to each other, and flow the cutting fluid to the first parallel passage.
Provided are: a tooling exchange mechanism having a small load to a turret during tooling exchange in a machine tool; and a machine tool having the mechanism. According to the present invention, a pressing member 210 of a tooling attachment/detachment unit 200 which can press a rear end of a tooling holding unit 100 and thus release a pulled-in state of a tool holder Th of the tooling T by means of a tool holder holding part 150 of the tooling holding unit 100, and a locking lever 220 of the tooling attachment/detachment unit 200 can lock a engagement protrusion 112a formed on the rear end side of the tolling holding unit 100.
B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
B23B 31/06 - Features relating to the removal of tools or workAccessories therefor
B23B 31/107 - Retention by laterally-acting detents, e.g. pins, screws, wedgesRetention by loose elements, e.g. balls
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
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
44.
MACHINE TOOL, POSITIONAL INFORMATION CORRECTION METHOD, AND POSITIONAL INFORMATION CORRECTION PROGRAM
Provided is a machine tool comprising: a spindle that rotatably grips a workpiece; a blade mount on which a tool for processing the workpiece can be mounted; a moving body that is movable independently from the spindle and the blade mount; a contact type sensor that moves according to movement of the moving body; and a control device that calculates central position information indicating the central position of the spindle on the basis of spindle position information obtained via the sensor having been moved to the vicinity of the workpiece by moving the moving body. The control device obtains blade edge position information indicating the position of a blade edge of the tool via the sensor by moving the moving body, and corrects the blade edge position information on the basis of the central position information.
Provided is a machine tool that does not require a large space to be secured around a tool unit and does not require limitation of the turning angle of the tool unit. An automatic lathe (100) is provided with a front main axis (20) that holds a workpiece W, and a turret (31) having a peripheral surface divided into a plurality of turret surfaces (31n, 31c,..., 31k) to which tools (40, 61, 62, 63, 64, 65) are attached, the turret (31) being used to process the workpiece (W) by means of one of the tools selected by rotation of the turret (31) around a Z-axis. In the turret (31), at least one turret surface (31n) among the turret surfaces is configured to have a shorter distance from the Z-axis compared to other remaining turret surfaces (31c to 31k).
A machine tool comprising: a first spindle; a second spindle provided on a rear headstock to face the first spindle; a barstock supply unit for supplying an elongate rod to the first spindle; and a processing means including a tool for processing the barstock, characterized in that the machine tool further comprises: a workpiece clamp device provided on the rear headstock and adapted to grip a second material comprised of the barstock that has been removed from the first spindle as an old material; and a joining means for joining opposite end portions of the second material gripped by the workpiece clamp device and of a first material gripped by the first gripping means and comprised of a barstock newly supplied by the barstock supply unit, thereby to integrate the second material and the first material into a single barstock.
B23B 13/04 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a plurality of working-spindles
B23B 13/02 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a single working-spindle
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 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
A control device for a machine tool comprises a control section controlling the relative rotation and feeding of a cutting tool and a material, performing cutting with vibration of the cutting tool relative to the material by combining a forward feed movement in the machining direction, and a return movement in the counter-machining direction. A return movement setting section sets a pulse-like signal including a command for moving a cutting tool in the machining direction and a command for the return movement. A forward feed setting section makes the cutting tool reach a change point by combining the movement in the machining direction on the basis of the return movement setting section and the forward feed movement. A pulse-like signal is formed in sine waveform with an inflection point, and a phase of the inflection point is set to a value different from a phase of the change point.
A machine tool includes a plurality of modules, and a control means for controlling operation of the modules, wherein the plurality of modules include a fixed module and two movable modules. The control means includes a restriction means for restricting the movement of the two movable modules for allowing only one of the movable modules to be moved to a facing position facing the fixed module; and a determination means for determining the movable module to be moved to the facing position. The control means is configured to control the operation of the plurality of modules so that, when the operation under cooperation of the fixed module and one of the movable modules has been completed, the restriction means releases the restriction of the movement of the other movable module to the facing position.
A tool rest has a base, a tool holder rotatably supported on the base, and rotatably holding a tool, a rotational mechanism rotating the tool holder, a plurality of flexible linear members in which one ends of the plurality of linear members are connected with the tool holder and a winding device connected with the other ends of the plurality of linear members, and winding up the plurality of linear members by rotating when the tool holder is rotated by the rotational mechanism.
B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
B23Q 1/00 - Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
50.
Rod member feeding device, machine tool including the rod member feeding device and control method for the rod member feeding device
To provide a rod member feeding device that reduces the load on a spindle chuck and a finger chuck when a rod member is positioned, as well as providing a machine tool provided with the rod member feeding device, and a control method for the rod member feeding device. A rod member feeding device includes: a feed rod for supplying a rod member to a spindle; a servomotor for moving the feed rod along the axial direction of the spindle; and a control device (exemplified with a motor control device and a control device) for controlling the driving of the servomotor. The control device calculates a deviation between a command position based on an advance amount of the feed rod and the actual position of the feed rod that has been actually advanced by the driving of the servomotor, and controls the driving of the servomotor based on the magnitude of the deviation.
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
A machine tool includes a first main shaft, a first drive source for moving the first main shaft, a second main shaft, a second drive source for moving the second main shaft, and a control means for carrying out a control so as to bring the workpiece held by the first main shaft and the workpiece held by the second main shaft into contact with each other while rotating them relative to each other, thereby to carry out the friction-heating, and to stop the relative rotation of the pair of workpieces and move only the second main shaft in the axial direction while holding the first main shaft stationary, thereby to carry out friction-welding of the pair of workpieces. The control means controls the operation of the first drive source upon the friction-welding of the pair of workpieces, so as to maintain the axial position of the first main shaft.
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
52.
PROCESSING DEVICE, PROCESSING METHOD, AND CUTTING TOOL
Provided are a processing device, a processing method, and a tool that enable the threaded bottom surface of a workpiece to have smaller recesses and protrusions. This processing device (illustrated as a machine tool (100)) feeds a workpiece and a multi-edged tool, relative to each other, along the process feeding direction while rotating the workpiece and the multi-edged tool relative to each other, and performs threading on the workpiece by performing a cutting process a plurality of times on the workpiece in the radial direction of the workpiece along an identical cutting path having a prescribed helical shape. The processing device is provided with a control unit (181) which performs a grooving process for forming a threaded portion in association with vibration in the radial direction of the workpiece and a finishing process for forming a threaded portion through contact with the grooved portion of the workpiece. The multi-edged tool (illustrated as a tip (131)) has a first cutting blade (illustrated as a front edge (141)) and a second cutting blade (illustrated as a rear edge (142)) shorter in length than the first cutting blade, the first and second cutting blades being arranged side by side along the process feeding direction. The control unit sets the amplitude of the vibration waveform to a value such that the edge of the second cutting blade does not come in contact with the threaded bottom surface of the workpiece during finishing process.
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23G 1/02 - Thread cuttingAutomatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
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
B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
53.
TOOL ATTACHMENT PART, TOOL POST OF MACHINE TOOL EQUIPPED WITH TOOL ATTACHMENT PART, AND MACHINE TOOL
A tool attachment part includes an outer holder detachably fixed to a fixed part and an inner holder turnably and integrally supported by the outer holder. The inner holder is formed with a support part (insertion portion Tb) to support a rotatable tool. A drive-force transmission gear is integrally provided on the inner holder. The drive-force transmission gear is detachably engaged with a tool turning drive gear provided on a turret side. The tool turning drive gear is detachably attached to the turret by the fixed part and is engaged with the drive-force transmission gear such that the inner holder turns, and thereby the rotatable tool supported by the support part turns.
Provided is a chuck device that retains a workpiece supplied to a machine tool without deforming the same when the workpiece is a plate material. In the present invention: a housing 110 has a workpiece contacting surface 115a disposed so as to face workpiece retention claw parts 122; a plurality of rods 120, when releasing retention of a workpiece W, integrally oscillate such that the workpiece retention claw parts 122 separate from one another while separating from the workpiece contacting surface 115a of the housing 100; and the plurality of rods 120, when retaining the workpiece W, integrally oscillate such that the workpiece retention claw parts 122 approach one another while coming into proximity of the workpiece contacting surface 115a of the housing 110, after which the plurality of rods 120 integrally move parallel to the forward-backward movement direction of a drive body 140 and bring the workpiece retention claw parts 122 into contact with the workpiece W.
B23B 31/18 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in planes containing the axis of the chuck
B23B 31/19 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving parallel to the axis of the chuck
Disclosed is a friction welding method including: a heating step wherein, in relation to joining surfaces (S1, S2) defined by opposite end surfaces of a pair of materials (W1, W2), the pair of materials (W1, W2) are moved from a state in which their axes are unaligned with each other, in a direction for aligning the respective axes with each other, to a prescribed position where the joining surfaces (S1, S2) are brought into contact with each other and friction heated; and a pressure contacting step wherein the pair of materials are brought into pressure contact with each other. The method is characterized in that the heating step and the pressure contacting step are carried out while rotating each of the materials (W1, W2) at the same rotation speed in the same direction, as seen from one side in the axial direction.
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
B29C 65/06 - Joining of preformed partsApparatus therefor by heating, with or without pressure using friction, e.g. spin welding
The present invention is a machine tool (1) having two chucks (3) that grip respective workpieces (W), a rotation-driving device (6) that causes the chucks (3) to relatively rotate, a movement-driving device (9) that causes the chucks (3) to move, and a joining means that controls the rotation-driving device (6) and the movement-driving device (9) so that the workpieces (W) are brought into contact with each other using a prescribed pressing force and in a prescribed rotation state to join the workpieces (W), wherein the machine tool (1) is characterized in that: there are provided a contact means that controls the rotation-driving device (6) and the movement-driving device (9) so that the workpieces (W) are brought into contact with each other in a state in which separation is possible, a sensor that detects the contact state of the workpices (W) as brought about by the contact means, and a database (13) that stores joining conditions for the joining means; and the joining means joins the workpieces (W), on the basis of detection information from the sensor, in accordance with joining conditions that correspond to the detection information from the sensor as extracted from the database (13).
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 17/00 - Arrangements for indicating or measuring on machine tools
57.
PROCESSING APPARATUS, PROCESSING METHOD, AND PROCESSING SYSTEM
A processing apparatus of the present invention processes a workpiece using a tool. The processing apparatus comprises: a measurement unit that measures vibration of the workpiece being processed; a determination unit that performs good/bad determination of a processing result of the workpiece; and a learning unit that creates a learning model on the basis of the vibration and a processing result that belongs to neither of the good and bad processing results.
B23Q 17/12 - Arrangements for indicating or measuring on machine tools for indicating or measuring vibration
B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
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 19/18 - 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 19/4155 - 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
Provided are a machine tool that accurately detects a cutting-off failure due to breakage or the like of a cutting-off tool, and a control device for the machine tool. A machine tool 100 comprising: a main shaft 110 that holds one end of a workpiece W; an opposing chuck 131 that faces the main shaft 110, holds the other end of the workpiece W, and is movable; and a main shaft moving motor 122 for moving the main shaft 110. The machine tool 100 is provided with a load detection means 172 for detecting a load on the main shaft moving motor 122, and a workpiece separation detection means 173 for detecting a cutting-off operation failure, depending on the load when executing unloading.
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
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
The present invention easily and suitably set, on the basis of a turret surface number written in a machining program, a torque limit value for a tool of a tool holder mounted on a turret surface corresponding to the turret surface number. According to the present invention, a torque limit value setting device (4) is configured by including: a first storage unit (34) in which a tool holder number and a torque limit value that is tool information are stored in association with each other; a second storage unit (35) in which a turret surface number and the tool holder number are stored in association with each other; and a torque limit value setting unit (30) as a tool information setting unit which, when a prescribed tool (12) is selected by means of a turret surface number of a mounted turret (8), acquires the tool holder number from the second storage unit (35) on the basis of the turret surface number written in the machining program, and acquires the torque limit value from the first storage unit (34) on the basis of the acquired tool holder number.
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 19/409 - 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
A machine tool includes a spindle, a spindle X-axis moving mechanism for moving the spindle in an X-axis direction, a tool rest equipped with a cutting tool for machining a workpiece, and a tool rest X-axis moving mechanism for moving the tool rest in the X-axis direction, wherein the tool rest is provided with a swivel mechanism for causing swiveling the cutting tool. The machine tool further includes a calculating means for calculating a moving distance of the cutting tool in the X-axis direction when the cutting tool has swiveled by a desired swivel angle, and a control means for controlling the operation of the spindle X-axis moving mechanism such that the spindle is moved in the X-axis direction to follow the cutting tool in accordance with the moving distance.
A clamp device (1) is provided with a chuck (30) that can be opened and closed, and an operating portion (20) which moves in the axial direction of the chuck (30) to open and close the chuck (30), the clamp device (1) gripping a material (W) by means of the chuck (30) in response to the operating portion (20) causing the chuck (30) to adopt a closed state when the material (W) has been inserted into the chuck (30) in an open state, wherein a stopper (40) against which the material (W) that has been inserted into the chuck (30) is capable of abutting is provided, and the stopper (40) is linked to the operating portion (20) in such a way as to move the operating portion (20) in the direction closing the chuck (30) in response to the material (W) being pressed in the insertion direction thereof.
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
A machine tool (1) characterized by having: a join processing control means that grips one first workpiece (W1) constituting a joined workpiece (W3) having a join (70) that protrudes from a support section (80), gripping same using a gripping unit (81), and controls the processing of the join (70) in the joined workpiece (W3) such that a prescribed area is machined to an outer diameter that is no more than the outer diameter of the first workpiece (W1) across a range of at least a prescribed width (Sw), said prescribed area being from the join (70) in the joined workpiece (W3) towards another second workpiece (W2) side, said second workpiece constituting the joined workpiece (W3); and a travel control means that controls travel by the joined workpiece (W3) so as to slide the joined workpiece (W3) relative to the support section (80), from a state in which the first workpiece (W1) is supported by the support section (80) until a state is reached in which the second workpiece (W2) is supported by the support section (80).
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
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
A turret tool holder includes an engagement means having engaging elements on a turret side and a support base side, a clutch member for transmitting a driving power to a turret drive section, and a moving mechanism. The moving mechanism includes a rotatably supported drive shaft, a first feed screw mechanism and a second feed screw mechanism rotatable in response to the rotational drive of the drive shaft for moving the clutch member and the engagement elements, and a coordination mechanism arranged between the drive shaft and the first feed screw mechanism or the second feed screw mechanism, for moving the engaging elements in response to the rotational drive of the drive shaft, with a feed amount smaller than the feed amount of the clutch member.
B23Q 5/10 - Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
B23Q 5/40 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
Provided are a coolant supply device in which ejection of coolant is easily switched on and off, and a machine tool. A coolant supply device 10 supplies coolant to a workpiece-processing area in a machine tool. The coolant supply device 10 includes: a rotary nozzle 40 formed in a cylindrical shape and having, in the cylindrical outer circumferential surface thereof, ejection ports 51 through which the coolant is ejected; and a supply device body 20 rotatably supporting the rotary nozzle and configured to be able to supply the coolant to the rotary nozzle. The supply device body is configured to be able to switch between an ejection permitted area, in which the ejection ports are opened, and an ejection stop area, in which the supply device body faces the ejection ports to close the ejection ports, in accordance with the rotation of the rotary nozzle.
B23Q 11/10 - Arrangements for cooling or lubricating tools or work
B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
Provided is a machine tool with which a reduction in the machining time of a workpiece is achieved when relative reciprocal oscillation of a workpiece holding means and a tool post in the radial direction of the workpiece is stopped during a period from an initial point until the workpiece and a cutting tool come into contact with one another, and a control device for this machine tool. In this machine tool, when performing a screw cutting process for forming a screw part in a workpiece W by performing an incision process a plurality of times along the same cutting pathway having a prescribed helical shape, by moving the workpiece and a cutting tool 130 relative to one another in a processing feed direction while rotating the same relative to one another, the cutting tool is caused to approach the workpiece in the processing feed direction from a prescribed initial point I at which the workpiece and the cutting tool are separated from one another, and the screw cutting process begins by the workpiece and the cutting tool coming into contact with one another. During the period from the initial point until the workpiece and the cutting tool come into contact with one another, a control means (illustrated by way of example as a control unit C1) performs control to stop oscillation of the cutting tool, and to stop reciprocal oscillation with the phase position of the tool post, in the oscillation direction, defined such that when the workpiece and the cutting tool come into contact with one another in the successive incision processes of the plurality of incision processes of the screw cutting process, prescribed reciprocal oscillation phases (illustrated by way of example as processing starting points S1, S2, S3, S5, and S7) are attained with respect to the rotational phase of the workpiece at which the screw cutting process starts.
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23G 1/02 - Thread cuttingAutomatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
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
B23Q 15/013 - Control or regulation of feed movement
Disclosed are threading device and threading method, including a turning step for threading a rotating workpiece with a predetermined cutting depth, by relatively moving a tool in the axial direction of the workpiece and then rounding-up the workpiece obliquely by relatively moving the tool in the axial direction and radially outward. The workpiece is subjected to the threading process by repeatedly carrying out the turning step while sequentially shifting the axial position for starting the rounding-up of the workpiece relative to an axial position where the rounding-up of the workpiece has been started in a previous turning step.
B23B 5/46 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning helical or spiral surfaces
B23G 3/00 - Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working-spindle
B23Q 15/013 - Control or regulation of feed movement
The tool holding device includes: a casing including a first surface, a second surface opposed to the first surface, and a first projection and a second projection projecting opposite to the first surface from the second surface; a first tool holding part disposed on the first surface at a position opposed to the first projection; a second tool holding part disposed on the first surface at a position opposed to the second projection; a driving-force input unit disposed at the end of the first projection and rotated by driving force being inputted; a first shaft extending in an axial direction perpendicular to the first surface and the second surface, the driving-force input unit and the first tool holding part being disposed at one end and the other end of the first shaft, respectively; a second shaft extending in the axial direction and having one end housed in the second projection, the second tool holding part being disposed at the other end of the second shaft; and a rotation transmitting unit rotating the second shaft in response to rotation of the first shaft.
B23Q 39/02 - Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
B23Q 5/10 - Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
B23B 11/00 - Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling
B23B 39/16 - Drilling machines with a plurality of working-spindlesDrilling automatons
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
B23B 3/06 - Turning-machines or devices characterised only by the special arrangement of constructional units
B23C 1/04 - Milling machines not designed for particular work or special operations with a plurality of horizontal working-spindles
B23Q 39/00 - Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
69.
Abnormality detection device and machine tool including abnormality detection device
An abnormality detection device of a machine tool includes a plurality of vibration sensors mounted on a body of the machine tool at a plurality of positions; and a determination portion that determines an operation condition of the machine tool based on vibration information detected by the vibration sensors. The abnormality detection device detects abnormality of the machine tool according to determination information of the determination portion. The determination portion specifies a predetermined item whose machining accuracy lowers based on the mounted position of the vibration sensor that has detected abnormal vibration.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
70.
Machine tool including vibration restriction means
A machine tool includes: a cutting tool; rotating means; feeding means; and vibration means for reciprocatingly vibrating the cutting tool and the workpiece relative to each other; wherein the cutting process is carried out by a relative rotation of the workpiece and the cutting tool, and feeding of the cutting tool, to thereby move the cutting tool continuously along a plurality of predetermined movement paths each having a different machining feeding direction. The machine tool further includes vibration restriction means that operates as the movement of the cutting tool changes from one movement path of two consecutive movement paths to the other movement path, for restricting the reciprocating vibration for a predetermined period from the movement starting position of the movement paths, and starting the reciprocating vibration after the lapse of said predetermined period.
B23Q 15/013 - Control or regulation of feed movement
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
71.
CUTTING FLUID TANK, MACHINE TOOL AND MACHINE TOOL SYSTEM
This cutting fluid tank has: a first flow path and a second parallel flow path which are positioned in parallel with one another and which recover cutting fluid discharged from a machine tool; and a connecting path which connects one end of the first parallel flow path with one end of the second parallel flow path. The cutting fluid is circulated in reverse directions through the first parallel flow path and the second parallel flow path, and is supplied to the machine tool 1 from the end of the second parallel flow path. Two outflow/input parts which discharge recovered cutting oil to the first parallel flow path are provided in parallel, cutting fluid flows in from each outflow/inflow part from different directions, and cutting fluid flows out to the first parallel flow path.
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
72.
Machine tool system that restricts parallel execution of predetermined operations by different tools
The machine tool includes modules and a control portion. Each of the modules includes a main spindle for holding a workpiece and a tool post for holding a tool. The tool is used to machine the workpiece held by the main spindle. The control portion is configured to control to restrict a parallel execution of predetermined machining for the workpiece and machining affected by the predetermined machining and to permit an execution of machining other than the restricted machining.
B23B 3/00 - General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screwSets of turning-machines
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 19/4155 - 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 19/414 - Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
A machine tool includes: a cutting tool; rotating means; feeding means; vibrating means for reciprocatingly vibrating the cutting tool and the workpiece relative to each another; and amplitude control means for controlling the amplitude of the reciprocating vibration by the vibrating means. The cutting process is carried out by rotation of the workpiece and the cutting tool relative to each other and feeding of the cutting tool accompanied by the reciprocating vibration with said amplitude in the machining feeding direction of the cutting tool, to thereby move the cutting tool along a predetermined movement path relative to the workpiece. The movement path comprises a plurality of divisional paths divided at predetermined coordinate positions on the movement path. The amplitude control means is adapted to set the amplitude individually for each of the divisional paths.
B23Q 15/013 - Control or regulation of feed movement
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
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
B23Q 17/12 - Arrangements for indicating or measuring on machine tools for indicating or measuring vibration
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
Provided are a control device for a machine tool and a machine tool capable of easily performing cutting involving vibration depending on a feed amount. A control device 180 for a machine tool comprises a control unit 181 for controlling relative rotation and feed operation of a tool and a material, and the control unit combines outward feed movement of the material in a processing direction by the tool and return movement in an anti-processing direction such that cutting is performed while vibrating the tool with respect to the material. A return movement setting unit 193 sets a pulsed signal including an instruction to move the tool in the processing direction and an instruction for return movement. An outward feed setting unit 192 controls the tool to reach the changing point by combined movement of the movement in the processing direction based on the return movement setting unit and the outward feed movement. The pulsed signal is formed into a sine wave having an inflection point, and the phase of the inflection point for controlling the tool to reach the changing point is set to a value different from the phase of the changing point.
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
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23Q 15/013 - Control or regulation of feed movement
An automatic lathe includes a positioning block that positions a rod material, the rod material projecting from a main spindle contacting the positioning block, and a sensor that moves in a direction intersecting with a shaft center C direction of the main spindle to detect a cut off condition of the rod material. The positioning block includes a groove that allows movement of the sensor, and moves in the same direction as a movement direction of the sensor between a position that contacts the rod material and a position that has no contact with the rod material. The sensor moves along the path in the position that has no contact with the rod material.
A machine tool includes a main spindle movably supported in an axial direction, and two gang tool posts disposed opposed to each other with an axis of the main spindle located therebetween. Each of the two gang tool posts is supported movably in X and Y directions that are perpendicular to the axial direction of the main spindle. Each of the two gang tool posts is provided with tools arranged parallel to each other in the Y direction. One of the two gang tool posts is movably disposed in a Z direction that is a same direction as the axial direction of the main spindle. Any one of the two gang tool posts is integrally provided with a turning tool base that turnably supports tools about a Y-axis along the Y direction.
A turret tool post includes a turning part having a plurality of turret surfaces on which tools for machining a workpiece are mounted, the turning part being configured to select any one of the tools for use in the machining of the workpiece by turning; a non-turning part on which a laser head of a laser machining device different from the tool is mounted, the non-turning part being arranged inside the turning part, an optical fiber cable being connected to the laser head; and a cut part (machinable part) that allows machining by the laser head to the workpiece under a state in which the laser head is selected.
A control device for a machine tool to efficiently and successively produce a plurality of different-shaped products is provided. In the control device, each driving shaft of modules is assigned to different control systems. The device includes a multi-system program storage part for storing a plurality of multi-system programs to machine a workpiece in different shapes, a multi-system program dividing part for dividing the multi-system programs into machining programs, a divided program storage part for storing the divided machining programs individually, a system-based program storage part for storing the machining programs each corresponding to each of the control systems, and a machining program selection part for selecting a predetermined machining program from the divided program storage part in accordance with the machining step to be performed and for alternately storing the selected machining programs in two program storage parts of the system-based program storage part for the respective control systems.
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 15/14 - Control or regulation of the orientation of the tool with respect to the work
B23Q 15/22 - Control or regulation of position of tool or workpiece
A machine tool includes a spindle headstock having a main spindle, a spindle headstock having a main spindle with a Z3 axis parallel to an axis center direction of the main spindle, a turret that moves relative to the spindle headstocks, and a controller that superposition-controls the spindle headstock with movement of the turret as a standard, wherein the turret is movable in directions of an X axis and a Ys axis that are orthogonal to a Z axis and intersect with the Z axis at an angle except for the right angle, and the controller moves the turret in a direction of a Y axis different from the Ys axis and the X axis by combining movement in the direction of the Ys axis and movement in the direction of the Y axis, and regulates, in the superposition control, the movement of the spindle headstock in the X axis direction associated with the movement in the Y axis direction.
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
G05B 19/402 - 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 positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position
A control device for a machine tool and a machine tool capable of easily performing cutting with vibration according to the amount of feed is provided. A control device (180) for a machine tool comprises a control means (181) for controlling the relative rotation and feeding of a cutting tool and a material, the control means performing control such that cutting is performed with vibrating the cutting tool relative to the material by combining a forward feed movement in the machining direction, in which the cutting tool machines the material, and a return movement in the counter-machining direction. A return position calculation section (191) for calculating a return position of the cutting tool at time when one vibration is completed on the basis of the number of vibrations and an amount of feed that are predetermined for one rotation of the cutting tool or the material, a forward feed setting section (192) for setting the forward feed movement on the basis of one or more change point setting values that determine a change point from the machining direction to the counter-machining direction, and making the cutting tool reach the determined change point, and a return movement setting means (193) for setting a pulse-like signal that is output as a command for the return movement so that the cutting tool reaches the calculated return position at time when one vibration is completed are included.
B23Q 15/22 - Control or regulation of position of tool or workpiece
B23Q 15/013 - Control or regulation of feed movement
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
G05B 19/19 - 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 19/4093 - 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 19/416 - 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
Provided is a machine tool (1), which: comprises a first main shaft (10) and a second main shaft (20); and when a bar (W) becomes a length that is difficult to machine into a product (P), removes the bar (W) as a previous material (W1) from the first main shaft (10) and delivers the same to the second main shaft (20) while supplying a new bar (W) as a new material (W2) from a bar supply unit (50) to the first main shaft (10) and, after making the previous material (W1) and the new material (W2) into a single bar (W3) by joining the mutually facing ends of the previous material (W1) gripped by a second gripping means (22) and the new material (W2) gripped by a first gripping means (12), successively performs a prescribed machining using a tool (41) and cutoff of the bar (W3). The machine tool (1) is characterized in being configured so that when performing the initial machining of the bar (W3) gripped by the first gripping means (12), the first gripping means (12) grips the portion of the bar (W3) that comprises the previous material (W1).
B23B 13/04 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a plurality of working-spindles
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
A machine tool (1) provided with a first main shaft (10), a second main shaft (20) provided to a rear-surface main shaft jig (21), a rod material supply part (50) for supplying a long rod material (W) to the first main shaft (10), and a machining means (40) provided with a tool (41) for machining the rod material (W), the machine tool (1) obtaining a plurality of products (P) by machining the rod material (W), wherein the machine tool (1) is characterized in having: a workpiece clamp device (24) provided to the rear-surface main shaft jig (21), the workpiece clamp device (24) being capable of gripping the rod material (W) that is removed from the first main shaft (10) as an old material (W1); a new-material supply means (50) that supplies a new rod material (W) as new material (W2) to the first main shaft (10), by which the old material (W1) is removed, and causes the new material (W2) to be gripped by a first gripping means (12); and a joining means that joins mutually opposing end parts of the old material (W1), which is gripped by the workpiece clamp device (24) and the new material (W2), which is gripped by the first gripping means (12), to form the old material (W1) and the new material (W2) into a single rod material (W3).
B23B 13/04 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a plurality of working-spindles
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
The present invention provides a machine tool (1) that is provided with a first main shaft (10) and a second main shaft (20). When a bar material (W) has a length that makes it difficult to process a product (P), the machine tool (1) removes the bar material (W) as a used material (W1) from the first main shaft (10) and hands the bar material (W) over to the second main shaft (20), feeds a new bar material (W) as a new material (W2) from a bar-material feeding part (50) to the first main shaft (10), and joins mutually facing end sections of the used material (W1) gripped by a second gripping means (22) and of the new material (W2) gripped by a first gripping means (12). The machine tool (1) is characterized in that the bar-material feeding part (50) moves a bar material (W3), which is formed by joining the used material (W1) and the new material (W2), towards the first main shaft (10) by the length of the used material (W1), thereby extracting the bar material (W3) from the second main shaft (20).
B23B 13/04 - Arrangements for automatically conveying, chucking or guiding stock for turning machines for turning-machines with a plurality of working-spindles
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
A machine tool (1) has a plurality of modules (MD1 to MD4), and a control means (5) for controlling actuation of the modules (MD1 to MD4), the plurality of modules (MD1 to MD4) being composed of a fixed module (MD3) and two moving modules (MD2, MD4), wherein the control means (5) is provided with: a regulating means (5a) for regulating movement so that only one of the two moving modules (MD2, MD4) moves to a facing position A; and a determining means (5b) for determining the moving module (MD2, MD4) which moves to the facing position A facing the fixed module (MD3). The machine tool (1) is characterized in that the control means (5) controls the actuation of the plurality of modules (MD1 to MD4) so that, when an operation by the fixed module (MD3) and one of the moving modules (MD2, MD4) has been completed, the regulating means (5a) removes the regulation of the movement of the other moving module (MD2, MD4) to the facing position A.
A tool rest for a machine tool, with a plurality of rotary tools and a tool-rotating drive shaft supported rotatably so that its rotation is transmitted to each rotary tool. The tool rest includes: a plurality of input portions fixed to the tool-rotating drive shaft; and engaging portions corresponding to the respective input portions, rotatably supported and adopted to be driven in rotation by the input portions for engaging with engaged portions of each rotary tool to transmit power when a prescribed rotational phase is reached. Adjusting means is provided between a prescribed input portion and the engaging portion, for adjusting the phase of the engaging portion relative to the tool-rotating drive shaft such that the engaging portions and the corresponding engaged portions are engaged simultaneously.
Disclosed is a machining tool in which, in respect to machining of a thread part, a thread-rolling tool (130) is configured to be capable of switching between a closed state in which action is taken on a workpiece and an open state in which no action is taken thereon, the machining tool being used to form the thread part by inserting the workpiece into the thread-rolling tool (130) in a closed state while the workpiece is being rotated concentrically to the thread-rolling tool (130). An engagement part (111) capable of mutually engaging with an operating part (132a) that actuates a switching operation between the open state and the closed state of the thread-rolling tool (130) is provided on the side of a main shaft (110). The engagement part (111) is disposed in such a manner as to be capable of engaging the operating part (132a) concentrically with the thread-rolling tool (130) and the workpiece. The switching between the open state and the closed state of the thread-rolling tool (130) takes place as the main shaft (110) is rotated while the operating part (132a) is kept in engagement with the engagement part (111).
A coolant coupling device (20) includes: a cylinder chamber (25) provided for a support member (2) for a tool rest (4) in a machine tool and supplied with coolant; a piston (P) movably arranged in the cylinder chamber (25); and a coolant supply flow channel (30) provided for the piston (P) for passing coolant therethrough. The piston (P) is driven by the coolant supplied to the cylinder chamber (25) so that an outlet (32) of the coolant supply flow channel (30) is connected to a coolant inlet port (10) of the tool rest (4) to supply the coolant to the tool rest (4). The piston (P) comprises a cylindrical projection (29) protruding toward and into the cylinder chamber (25), and the coolant supply flow channel (30) has an inlet (34) that opens at an outer peripheral surface of the cylindrical projection (29).
This tool rest has: a base; a tool-holding device turnably supported by the base, the tool-holding device holding a tool; a turning mechanism for turning the tool-holding device; a flexible plurality of linear members of each of which one end is connected to the tool-holding device; and a winding device to which each of the other ends of the plurality of linear members are connected, the winding device turning in accordance with turning of the tool-holding device by the turning mechanism to thereby wind the plurality of linear members.
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
121212122 is carried out, the control means C controls the operation of the first drive source 9a so as to maintain the axial position of the first main shaft 3a.
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
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
A machine tool (1) includes a main shaft (4), a main shaft X-axis movement mechanism which moves the main shaft (4) in an X-axis direction, a tool post (10) fitted with a cutting tool (12) for machining a workpiece (W), and a tool post X-axis movement mechanism which moves the tool post (10) in the X-axis direction, wherein a pivoting mechanism which causes the cutting tool (12) to pivot is provided on the tool post (10), characterized in that the machine tool (1) includes a calculating means (20) for calculating a movement distance (XA), in the X-axis direction, of the cutting tool (12) when the cutting tool (12) has pivoted through a desired pivot angle (α), and a control means (20) for controlling the operation of the main shaft X-axis movement mechanism in such a way that the main shaft (4) moves in the X-axis direction to follow the cutting tool (12) in accordance with the movement distance (XA).
This tool holding device has: a casing that has a first surface, a second surface opposed to the first surface, and a first projection and a second projection which are projected from the second surface in a direction opposite to the first surface; a first tool holding part that is disposed at a position, on the first surface, opposed to the first projection; a second tool holding part that is disposed at a position, on the first surface, opposed to the second projection; a driving force input unit that is disposed at the tip of the first projection and that rotates in accordance with a driving force inputted thereto; a first shaft that extends in an axial direction orthogonal to the first surface and the second surface and that has one end on which the driving force input unit is disposed and the other end on which the first tool holding part is disposed; a second shaft that extends in the axial direction and that has one end housed in the second projection and the other end on which the second tool holding part is disposed; and a rotation transmission unit that rotates the second shaft in association with rotation of the first shaft.
B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
This rotary tool device has: a power transmission mechanism which has a plurality of gears arranged so as to be engaged with a power source and to mesh with one another and to which power is transmitted from the power source; a rotary shaft that is rotated by the power transmitted from the power transmission mechanism and that is provided with a tool mounting part which attachably/detachably holds a rotary tool for machining a workpiece; and a locking member that, when restricting rotation of the rotary shaft, locks any one of the gears in a state where the power transmission mechanism is engaged with the power source.
122) grasped respectively by a pair of main shafts (3a, 3b) that face each other be mated surfaces (S1, S2), the pair of materials (W1, W2) is moved to a prescribed position while bringing the mated surfaces (S1, S2) into contact with each other in a direction such that the respective shafts for the pair of materials (W1, W2) line up with each other from a state in which the shafts are offset from each other and is friction heated, and a pressure welding step in which the pair of materials (W1, W2) is pressure welded at the prescribed position, said friction welding method being characterized in that the heating step and the pressure welding step are carried out while rotating each of the materials (W1, W2) at the same rotational speed in the same direction when viewed from one side in the direction of the shafts. Also provided is a machine tool (1) for implementing the friction welding method.
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
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
B23P 13/00 - Making metal objects by operations essentially involving machining but not covered by a single other subclass
A machine tool (1) has a main shaft (32) supported on a support surface (37a) of a support body (37) in such an orientation that a longitudinal axis of the main shaft is aligned with the support surface (37a), and the main shaft (32) can move in a vertical direction that is along the support surface (37a) and perpendicular to the longitudinal axis. The machine tool (1) is characterized in that the support body (37) is provided with a ventilation hole (80) that passes through the support body (37) between the support surface (37a) and a surface (37b) facing in the opposite direction as the support surface (37a), and that opens toward the main shaft (32).
The purpose of the invention is to specify, in an abnormality detection device, a vibration sensor that has detected abnormal vibration, and to easily specify, on the basis of the mounting position of the specified sensor, a predetermined item in machining precision that deteriorates as an operation state of a machine tool. Disclosed is an abnormality detection device (10) of a machine tool (1), comprising a plurality of vibration sensors (11-20) mounted at respective positions on a machine body side of the machine tool (1); and a determination unit (34) that determines an operation state of the machine tool on the basis of vibration detection information by the vibration sensors (11-20). In this abnormality detection device (10) of the machine tool (1), abnormality in the machine tool (1) is detected in accordance with the determination information of the determination unit (34). The determination unit (34) specifies, on the basis of the mounting position of the vibration sensor (11-20) having detected abnormal vibration, a predetermined item in machining precision that deteriorates.
Disclosed is a machine tool comprising: a cutting tool that performs cut-processing on a workpiece; a rotating means that rotates the cutting tool and the workpiece relative to one another; a feeding means that subjects the cutting tool and the workpiece to a feeding operation in a predetermined processing-feed direction; and a vibration means that reciprocatingly vibrates the cutting tool and the workpiece relative to one another. By the relative rotation between the workpiece and the cutting tool and the feeding operation accompanied by the reciprocating vibration, in the processing-feed direction, of the cutting tool relative to the workpiece, the machine tool performs cut-processing by moving the cutting tool relative to the workpiece continuously along a plurality of predetermined movement paths in which the respective processing-feed directions are different from one another. The machine tool comprises a vibration restriction means that, at the time the movement of the cutting tool changes from one movement path, of two of said movement paths continuous with one another, to the other movement path, restricts the reciprocating vibration for a predetermined period from the movement start position of the movement path, and starts the reciprocating vibration after the lapse of said predetermined period.
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
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23Q 15/013 - Control or regulation of feed movement
Disclosed is a machine tool comprising: a cutting tool that performs cut-processing on a workpiece; a rotating means that rotates the cutting tool and the workpiece relative to one another; a feeding means that subjects the cutting tool and the workpiece to a feeding operation in a predetermined processing-feed direction; a vibration means that reciprocatingly vibrates the cutting tool and the workpiece relative to one another; and an amplitude control means that controls the amplitude of the reciprocating vibration by the vibration means. By the relative rotation between the workpiece and the cutting tool and the feeding operation accompanied by the reciprocating vibration, in the processing-feed direction, of the cutting tool relative to the workpiece and having said amplitude, the machine tool performs cut-processing by moving the cutting tool relative to the workpiece along a predetermined movement path. In the machine tool: the movement path is constituted by a plurality of divisional paths divided at predetermined coordinate positions on the movement path; and the amplitude control means sets the amplitude separately for each of the divisional paths.
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
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machinesUse of auxiliary equipment in connection with such methods
B23Q 15/013 - Control or regulation of feed movement
An objective of the present invention is to provide a machine tool (100) capable of reducing cycle time increases while preventing a prescribed operation performed on a workpiece (W) from affecting another operation, thus demonstrating superior processing precision and productivity. This machine tool (100) comprises a control unit (21) and modules (M1), (M2), and (M3) configured from main shafts (3) for retaining a workpiece (W) and a tool post (7) for retaining a tool for processing the workpiece (W) retained by a main shaft (3). The control unit (21) performs control so as to place a limitation on certain processing to avoid the parallel execution of prescribed processing on the workpiece (W) and processing that might be affected by said prescribed processing while allowing the execution of processing other than the processing subject to said limitation.
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 19/18 - 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
This machine tool performs superposition control that uses a tool rest that moves in a direction (Ys-axis) that obliquely crosses an X-axis. The machine tool(100) is provided with: a headstock (110) that has a spindle (111) and a headstock (120) that has a spindle (121), and a Z3-axis parallel to the axial center direction of the spindle (111); a turret (131) that moves with respect to the headstocks (110, 120); and a control device (150) that performs the superposition control on the headstock (120) on the basis of the movement of the turret (131). The turret (131) can move in the X-axis direction and the Ys-axis direction that intersect each other at an angle other than a right angle, and that are perpendicular to a Z-axis. The control device (150) moves the turret (131) in a Y-axis direction different from the Ys-axis and X-axis directions by combining the movement in the Ys-axis direction and the movement in the X-axis direction, and, during the superposition control, controls the turret (131) so as to restrict movement of the headstock (120) in the X-axis direction accompanying the movement in the Y-axis direction.
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
B23B 3/18 - Turret lathes for turning individually-chucked workpieces with horizontal working-spindle
B23B 3/30 - Turning-machines with two or more working-spindles, e.g. in fixed arrangement
patents
