A conveyance device includes a fixed base, a turning body, two or more servomotors, a conveyance arm, and two or more speed reducers. The turning body includes a large gear serving as an external gear. Each of the speed reducers includes a housing integrated with the fixed base, a planetary carrier rotatably supported inside the housing, an internal gear provided inside the housing, a sun gear connected to an output shaft of one of the servomotors, a plurality of planetary gears arranged around the sun gear and rotatably supported by the planetary carrier, and an output gear that rotates integrally with the planetary carrier. The planetary gear meshes with the sun gear and meshes with the internal gear. The output gear has a smaller diameter than a diameter of the large gear and meshes with the large gear outside the large gear.
A workpiece loading apparatus includes a pick-up stage, an A-side palletizing stage and a B-side palletizing stage, an A-side lifting device, a B-side lifting device, and a workpiece transfer device. The workpiece transfer device is configured to transfer a workpiece picked up from the pick-up stage to one of an A-side stocker or a B-side stocker until the stocker becomes full, and a corresponding one of the A-side lifting device or the B-side lifting device is configured to operate so that a height of the corresponding one of the A-side stocker or the B-side stocker is aligned with a workpiece horizontal movement height of the workpiece transfer device. When one of the A-side stocker or the B-side stocker becomes full, the workpiece transfer device switches an operation to transfer of the workpiece to another one of the stockers.
A press machine includes: a detection unit that detects a load value during press working on a workpiece material; a storage unit that stores load values for one cycle of the press machine detected by the detection unit in association with identification information of a die attached to the press machine during detection of the load values; a calculation unit that calculates eccentric loads for predetermined press angles based on the stored load values for one cycle of the press machine and generates eccentric load distribution data for each die; a determination unit that determines an abnormality based on the eccentric loads for the predetermined press angles obtained based on the load values for one cycle of the press machine detected by the detection unit and the eccentric load distribution data corresponding to a die attached to the press machine during the detection of the load values; and a notification unit that notifies of the abnormality based on a determination result of the determination unit.
A press machine includes: a detection unit that detects load values during punching of a workpiece material based on a signal output from a sensor provided in the press machine; a storage unit that stores the load values for one cycle of the press machine detected by the detection unit in association with identification information of a die attached to the press machine during detection of the load values; a calculation unit that calculates a total load which is a sum of loads from when an upper die of the die contacts the workpiece material until the punching is completed, based on the load values for one cycle of the press machine; and an information generation unit that generates and outputs information on a state of the die based on the total load calculated based on the load values for one cycle of the press machine detected by the detection unit and the total load calculated based on the load values for one cycle of the press machine stored in association with the die attached to the press machine during the detection of the load values.
A press machine includes: an operation content recording unit that records history data including operation content and an operation time of an operation performed on the press machine; a database generation unit that extracts, from the recorded history data, data corresponding to a series of operations including an operation to serve as a start point and an operation to serve as an end point of an operation procedure to be an operation support target, and generates a database of the operation procedure; an operation procedure acquisition unit that acquires, from the database, the operation procedure that satisfies a determination criterion designated by a user; and an operation procedure output unit that outputs the acquired operation procedure.
A compression spring model included in a processor in the die cushion control apparatus refers to a load characteristic curve of a compression spring when assuming that a hydraulic cylinder is a compression spring, generates a cushion load command in accordance with a spring constant and a deflection amount of a compression spring and generates a control command based on a deviation between the generated cushion load command and an actual cushion load. In accordance with the control command, the drive motor and the hydraulic pump are driven, and an upward load is generated on the cushion pin by the hydraulic cylinder. Thus, even when the cushion pin rises due to a setting error or the like for the press die height, the cushion load command decreases in accordance with the deflection amount of the compression spring and inhibits an abnormal pushing-up action of the cushion pin.
Provided is an assist drawing device by which, when a punch is moved from a stroke start edge toward a stroke end edge in accordance with a command from a control device to a punch drive unit, and drawing is performed in cooperation with a drawing die to thereby perform the drawing, assist drawing is performed while pressing a blank material against the drawing die by a blank holder and pressing both end surfaces of the blank material by assist punches, and in which the control device includes an assist pressure control unit configured to control an assist punch drive unit such that, when the assist drawing is performed, an assist pressure of the assist punches reaches a target assist pressure in accordance with a position of the punch.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Metalworking machines and tools; robots for metalworking;
other industrial robots. Computer programs for the repair or maintenance of
metalworking machines and tools; computer programs for
metalworking machines and tools' position control, operating
status management, and maintenance and management
information provision. Repair or maintenance of metalworking machines and tools;
providing information relating to position control and
operating status management for the repair or maintenance of
metalworking machines and tools; providing information
relating to the maintenance and repair of metalworking
machines and tools; providing information relating to the
maintenance and repair of metalworking machines and tools
using artificial intelligence functions. Technical advice using artificial intelligence functions
relating to metalworking machines and tools; technical
advice relating to metalworking machines and tools;
technological advice relating to computers, automobiles and
industrial machines.
9.
DISPLAY DEVICE OF PRESS MACHINE AND PRESS WORKING MONITORING METHOD
A display device of a press machine includes a calculation part that generates a plurality of images and a display part that displays the plurality of images. The plurality of images includes an annular or arc-shaped first image representing a stroke of a current sliding motion, a second image representing an input range of a sensor signal corresponding to a motion of an accessory device in conjunction with the press machine, and a third image representing a range for monitoring the sensor signal. The second image and the third image are arc-shaped or fan-shaped images concentric with the first image. The second image is displayed on the display part for a predetermined period after the sensor signal stops.
A press machine includes: a detection unit that detects a load value during press process on a material to be processed; a storage unit that stores the load value detected by the detection unit in association with identification information of a mold attached to the press machine during detection of the load value; a calculation unit that calculates a position of a load center acting on the press machine based on the stored load value, calculates the calculated position of the load center as an eccentric amount from a center of the press machine to obtain an eccentric load, and generates distribution data of the eccentric load for each mold; a determination unit that determines an abnormality based on the eccentric load obtained on the basis of the load value detected by the detection unit and the distribution data of the eccentric load corresponding to the mold attached to the press machine during detection of the load value; and a notification unit that notifies an abnormality based on a determination result of the determination unit.
A plate-like material feeding device configured to convey a plate-like material by sandwiching the plate-like material between a lower roll and an upper roll performs switching between a clamping state in which at least one of the upper roll or the lower roll is brought close to another one and a releasing state in which the at least one of the upper and lower rolls is separated away from another one by moving a cam follower in accordance with an outer peripheral profile of a circular cam. The outer peripheral profile of the circular cam has a projecting portion in a range different from a rotation angle range of the circular cam during operation, and has a recessed portion, which is formed in a vicinity of the top of the projecting portion and is configured to receive a part of an outer periphery of the cam follower.
B21D 43/09 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
B65H 5/06 - Feeding articles separated from pilesFeeding articles to machines by rollers
A conveyance device includes a fixed base having a large gear, a turning body supported by the fixed base via a bearing, two or more servomotors, a conveyance arm, and two or more speed reducers. The speed reducer includes a housing integrated with the turning body, a planetary carrier rotatably supported inside the housing, an internal gear provided inside the housing, a sun gear connected to an output shaft of the servomotor, a plurality of planetary gears arranged around the sun gear and rotatably supported by the planetary carrier, and an output gear rotating integrally with the planetary carrier. The planetary gear meshes with the sun gear and meshes with the internal gear. The output gear has a smaller diameter than that of the large gear and meshes with the large gear outside the large gear.
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Metalworking machines and metalworking machine tools; robots for metalworking; other industrial robots, namely, industrial robots for shaping metal, industrial robots for working metal, industrial robots for conveying workpieces, robotic arms for loading, robotic arms for palletizing, robots and robotic arms for metal working.
(2) Computer programs for the repair and maintenance of metalworking machines and metalworking machine tools; computer programs for metalworking machines and metalworking machine tools' position control, operating status management, and maintenance and management information provision. (1) Repair and maintenance of metalworking machines and metalworking machine tools; providing information relating to position control and operating status management for the repair and maintenance of metalworking machines and metalworking machine tools; providing information relating to the maintenance and repair of metalworking machines and metalworking machine tools; providing information relating to the maintenance and repair of metalworking machines and metalworking machine tools using artificial intelligence functions.
(2) Technical advice using artificial intelligence functions relating to metalworking machines and metalworking machine tools; technical advice relating to metalworking machines and metalworking machine tools; technological advice relating to computers, automobiles and metalworking machines.
14.
TRIMMING DEVICE AND METHOD FOR RECTANGULAR CONTAINER, AND RECTANGULAR CONTAINER
Provided is a trimming device configured to cut a rectangular container along a trim line, and includes: a die, which accommodates an outer periphery of the rectangular container, and is arranged along the trim line on a lower side thereof; a punch movable within a plane parallel to a bottom surface; a long-axis direction drive unit configured to move the punch along a long-axis direction of the rectangular container; a first short-axis direction drive unit, which is arranged on a proximal side of the long-axis direction drive unit, and is configured to move the punch along a short-axis direction; and a second short-axis direction drive unit, which is arranged side by side with the first short-axis direction drive unit along the long-axis direction on a distal side from the long-axis direction drive unit, and is configured to move the punch along the short-axis direction of the rectangular container.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Metalworking machines and metalworking machine tools; industrial robots for metalworking; industrial robots Downloadable computer programs for the repair or maintenance of metalworking machines and tools; downloadable computer programs for metalworking machines and tools' position control, operating status management, and maintenance and management information provision Repair or maintenance of metalworking machines and tools; providing information relating to position control and operating status management for the repair or maintenance of metalworking machines and tools; providing information relating to the maintenance and repair of metalworking machines and tools; providing information relating to the maintenance and repair of metalworking machines and tools using artificial intelligence functions. Technical advice using artificial intelligence functions relating to the technology of metalworking machines and tools; technical advice relating to the technology of metalworking machines and tools; technological advice relating to the technology of computers, automobiles and industrial machines
Provided is a plate-like material feeding device configured to sandwich a plate-like material between a lower roll rotatably supported on a device main body and an upper roll which is rotatable and arranged to face the lower roll in parallel thereto, so as to convey the plate-like material. The plate-like material feeding device includes: a lower gear integrally provided on a rotation shaft of the lower roll; an intermediate gear which is meshed with the lower gear, and is integrally provided on a rotation shaft of the upper roll; an upper gear meshed with the intermediate gear; a lower-roll drive motor which is coupled to the rotation shaft of the lower roll so as to drive the rotation shaft of the lower roll to rotate; and an upper-roll drive motor configured to drive the upper gear to rotate.
B21D 43/09 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
18.
Press machine and method of monitoring image of press machine
A press machine includes a storage unit configured to store moving image data captured by an imaging unit disposed at a position configured to allow the imaging unit to capture an image of a press die area, an image extraction unit configured to extract, from a group of still images forming the moving image data, a monitoring target image with reference to a position of a slide in the image or a state of a material to be processed, and an image monitoring unit configured to perform image monitoring based on the monitoring target image and to output a monitoring result.
A press machine includes: a press control unit that controls ascending/descending motion of the slide; and an abnormality diagnostic unit configured to perform abnormality diagnosis of the press machine based on data from a sensor provided in the press machine and to output a result of the abnormality diagnosis. The abnormality diagnostic unit is configured to perform the abnormality diagnosis, based on the data acquired from the sensor while the slide moves at a predetermined speed between a bottom dead point and a top dead point in a press-no-load state.
The present invention includes a link mechanism including a movable member, a first coupling shaft, a first coupling member, a second coupling shaft, a second coupling member, and a third coupling shaft. When the movable member moves to a predetermined engagement position, a straight line connecting the first coupling shaft and the second coupling shaft to each other in a plane orthogonal the first coupling shaft and the second coupling shaft and a straight line connecting the second coupling shaft and the third coupling shaft to each other in a plane orthogonal the second coupling shaft and the third coupling shaft are orthogonal to each other.
A press machine is a press machine configured to press a workpiece. The press machine includes a display that displays a state display image which extends in a band shape and indicates an operating state of the press machine during a predetermined period of time up to date. The display displays time series variation in the operating state during the predetermined period of time by variation in a color of the state display image in the band shape in an extending direction.
G06T 11/20 - Drawing from basic elements, e.g. lines or circles
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
A press machine includes a display that displays a plurality of images, and a processor that generates a plurality of images corresponding to a slide operation and a movement operation. The plurality of images include a first image having an annular shape, a second image having an arc shape, and a third image. A first region of the second image represents a movement time required for the movement operation, a third region represents a stop time required for a slide stop process, and a second region represents a delay time until the slide stop process starts after the movement time elapses. The processor displays the third image on the display as a determination element for determining whether the slide operation and the movement operation are settable in a relationship between the slide operation and the movement operation based on an input from the user interface.
The die cushion device includes a first hydraulic cylinder for supporting a cushion pad, and a first hydraulic circuit for driving the first hydraulic cylinder. The first hydraulic circuit is a hydraulic closed circuit including a logic valve connected between a die cushion pressure generation line and a system pressure line, and a hydraulic pump driven by a first servomotor for applying a pilot pressure to the logic valve. The first controller controls the first servomotor (pilot pressure) based on a first pressure command corresponding to the die cushion force and the pressure detected by the first pressure detector to control the pressure in a lower chamber of the first hydraulic cylinder so that the pressure is equal to a pressure corresponding to the first pressure command.
The die cushion device according to the present invention includes a first hydraulic cylinder and a second hydraulic cylinder that are independently and simultaneously controlled. When a cushion pad is pre-pressurized, pressure control is performed on the first hydraulic cylinder via a first hydraulic circuit so that a pressure in a lower chamber of the first hydraulic cylinder is pre-pressurized to a preset pressure, and position control is simultaneously performed on the second hydraulic cylinder via a second hydraulic circuit so that the cushion pad is held in the die cushion standby position. A force with which the first hydraulic cylinder moves the cushion pad upward is balanced with a force with which the second hydraulic cylinder moves the cushion pad downward (a force for holding the die cushion standby position).
A scrap cutter is provided in a subsequent stage of the press machine and cuts the scrap material fed from the press machine. The scrap cutter includes: a slide configured to be driven to reciprocate in the vertical direction by a Scotch yoke mechanism; an upper blade attached to the slide; and a lower blade attached to a frame and configured to cut the scrap material in cooperation with the upper blade. A shear angle formed by the upper blade and the lower blade has an angle that gradually decreases from a start of cutting of the scrap material toward an end of cutting to allow the driving torque of the crankshaft of the Scotch yoke mechanism to be constant from the start of cutting to the end of cutting in cutting a scrap material of a cutting capacity limit.
There is provided a press machine capable of simplifying a slide drive mechanism. The press machine comprises: a slide supported so as to be reciprocally movable; a crankshaft arranged along a longitudinal direction of the slide and having a plurality of eccentric parts; a drive unit configured to rotate the crankshaft; a plurality of yokes and each provided to each of the eccentric parts of the crankshaft and configured to reciprocate, due to rotation of the crankshaft, along a moving direction of the slide; and a plurality of points each connects each of the yokes to the slide, wherein at least one of the plurality of yokes is connected to the slide via some of the plurality of points arranged along a direction perpendicular to an axial direction of the crankshaft.
A transfer press includes a press machine that moves a slide up and down in accordance with pressing motion, and a transport device that moves a retainer in accordance with transfer motion to transport a workpiece. The transfer press includes a creation unit, a determination unit, and a phase adjustment unit. The creation unit creates a three-dimensional operating curved surface based on the provisionally set pressing motion and the provisionally set transfer motion. The determination unit compares a standard upper die interference curved surface with the operating curved surface in the same three-dimensional coordinate system to determine whether the operating curved surface is present within an interference region of the standard upper die interference curved surface. The phase adjustment unit changes a relative phase of the transfer motion relative to the pressing motion when the operating curved surface is present within the interference region.
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]
B21D 43/04 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
B30B 15/14 - Control arrangements for mechanically-driven presses
A transfer device transfers a workpiece by a transfer motion which is based on a transfer individual phase signal synchronized with a master phase signal, and includes: a setting unit that sets a point on a trajectory of a transfer bar as a switching point of a timing switch, the point on the trajectory being separated from a reference point on the trajectory by a designated distance designated by a user, and the trajectory being based on the transfer motion; and a signal output unit that outputs a timing signal to an external device at a timing when the transfer bar reaches the switching point.
A transfer mechanism includes a rail, first and second tables on the rail, first and second arms each having a base pivotably supported by the first and second tables, respectively, and first and second drive mechanisms that move the first and second tables along the rail, respectively. The first and second arms are pivotaly connected to each other at a position between a tip side and a base side. Tip side portions of the first and second arms than a connected portion of the first and second arms serve as fingers for holding a workpiece. The first and second drive mechanisms independently move the first and second tables, respectively. A relative movement of the first and second tables causes the first and second arms to operate a clamp/unclamp operation. A coordinated movement of the first and second tables causes the first and second arms to perform an advance/return operation.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
A die cushion device includes four hydraulic cylinders that support a cushion pad, a die cushion load controller that controls each of the hydraulic cylinders and generates a die cushion load on the cushion pad, and a die cushion position controller that controls each of the hydraulic cylinders to control a position of the cushion pad. In a case where only a left part is produced with a left die by a press machine, the die cushion load controller performs die cushion load control on two hydraulic cylinders on the left side, and the die cushion position controller performs die cushion position control on two hydraulic cylinders on the right side.
The press machine includes: a hydraulic cylinder configured to drive a slide; a plurality of hydraulic pumps/motors; a first port of each of which is connected to a first pressurizing chamber of the hydraulic cylinder; a plurality of servomotors axially connected to rotating shafts of the respective hydraulic pumps/motors respectively; a low-pressure accumulator to which second ports of the hydraulic pumps/motors are each connected; a high-pressure accumulator connected to a second pressurizing chamber of the hydraulic cylinder; and a slide position controller configured to control the servomotors so that a position of the slide matches a position corresponding to a slide position command signal based on the slide position command signal from a slide position commander and a slide position signal from a slide position detector.
B30B 1/00 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 15/16 - Control arrangements for fluid-driven presses
32.
Workpiece conveying system for a transfer press machine
A workpiece conveying system for a transfer press machine includes: a beam provided to extend in a feed direction of a workpiece; and a plurality of workpiece conveying apparatus supported by the beam. The workpiece conveying apparatus each include: a feed device including a first carrier that is movable relative to the beam in the feed direction; a raising and lowering device including a second carrier that is movable relative to the first carrier in a raising and lowering direction; a clamp device including a third carrier that is movable relative to the second carrier in a clamp direction of the workpiece; and a workpiece holding tool, which is supported at a distal end of the third carrier, and is configured to hold and release the workpiece.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating partsElements essential to the use of such members
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
B25J 9/12 - Programme-controlled manipulators characterised by positioning means for manipulator elements electric
A press machine includes a display unit which displays a first image in a circular shape corresponding to a rotation of an eccentric mechanism and representing one stroke of slide operation and a second image in a circular-arc shape corresponding to an operation of an attachment device interlocked with the press machine, and an operation unit which receives an input operation. The first image indicates at least one slide operation region. The second image is placed concentrically with the first image in relation to the slide operation region. The second image has opposed ends each allowed to move in response to the input operation in a direction in which the second image extends.
A work reversing apparatus includes: a first conveyor that transports a work; a second conveyor that transports a work; and a rotary driving unit that integrally rotates the first conveyor and the second conveyor. The rotary driving unit rotates the first conveyor and the second conveyor around a rotation center axis that extends in a direction perpendicular to a transporting direction of a work on the first conveyor and the second conveyor. By driving the rotary driving unit, a work can be reversed around the rotation center axis that extends in a direction perpendicular to the transporting direction.
B21D 22/02 - Stamping using rigid devices or tools
B65G 47/244 - Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning them about an axis substantially perpendicular to the conveying plane
B65G 47/248 - Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
B65G 47/90 - Devices for picking-up and depositing articles or materials
B65G 47/252 - Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them about an axis substantially perpendicular to the conveying direction
35.
Press load measuring apparatus and method for press machine
A press load measuring apparatus includes: strain gauges attached to respective columns of a press machine and configured to detect strains generated in the respective columns respectively in association with a press load acting on a slide of the press machine, an inertial force calculator configured to calculate a slide inertial force proportional to a product of a mass of a slide and a member connected to the slide and a slide acceleration detected by an acceleration detector, and a press load calculator configured to calculate press partial load signals before calibration based on a strain signals detected by the strain gauges, eliminate a slide inertial force signals from the press partial load signals before the calibration, and calculate calibrated press partial load signals.
A press load measuring apparatus for a press machine of 1-point type includes: a plurality of strain gauges attached to the respective columns of the press machine, the plurality of strain gauges detecting respective strains generated in the respective columns in association with a press load acting on the slide; a bending moment calculator configured to calculate bending moments acting on respective columns based on an angle formed between a direction of movement of the slide and the connecting rod; and a press partial load calculator configured to calculate press partial load signals corresponding to the respective columns, an impact of bending strain components caused by the bending moments included in the strain signals being eliminated from the press partial load signals based on the bending moments acting on the respective columns detected by strain gauges attached to the respective columns.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
37.
Workpiece conveying system, conveyed workpiece number detector, and control method for the workpiece conveying system
Provided is a workpiece conveying system configured to convey a sheet-like workpiece to a downstream step, including: a workpiece conveyor configured to lift through attraction holding, by a workpiece holding unit, an uppermost workpiece W of a stack, and convey the uppermost workpiece W of the stack to the downstream step one by one; and a conveyed workpiece number detector configured to detect the number of workpieces W held by the workpiece holding unit at a detection timing, at which the workpiece W held and raised by the workpiece holding unit in accordance with a normal workpiece conveying operation performed by the workpiece conveyor reaches an upper limit position of raising the workpiece W, and at which a moving speed component of the workpiece W in a raising direction is 0.
A workpiece conveyance device includes a base body disposed adjacent to a press machine, a pair of first arms, a pair of second arms, and a first holding portion and a second holding portion independent of each other. Each of the first holding portion and the second holding portion includes a plurality of holding members configured to hold a workpiece W. The first holding portion includes a first support member, a second support member, and an absorption member. The second support member movably supports the first support member along an intersection direction. The absorption member allows movement of the second support member caused in the intersection direction relative to the first support member, and makes it possible for the second support member to return to an initial position in the intersection direction relative to the first support member.
B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
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
F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means
F16F 15/03 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using electromagnetic means
F16F 15/023 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means
39.
Press machine and method for monitoring abnormality of press machine
A press machine includes: a learning-model generating unit that uses one data from among data collected from sensors, as an objective variable, and uses data other than the one data as an explanatory variable to perform machine learning to generate a learning model for the one data, the generation being performed for all the data; a predicted-value calculating unit that inputs an actually measured value of data other than one data from among the data collected from the sensors, into the learning model for the one data to calculate a predicted value of the one data, the calculation being performed for all the data; a degree-of-abnormality calculating unit that calculates a degree of abnormality based on a difference between an actually measured value and a predicted value of the data; and a degree-of-abnormality outputting unit that outputs the calculated degree of abnormality.
A dynamic balance device for a press machine includes a plurality of cam portions which transmit a vertical motion of a slide to a balance weight to move the balance weight in a reverse direction of the vertical motion of the slide. The cam portions are each movable in a direction substantially orthogonal to a moving direction of the slide, and each include a first inclined surface and a second inclined surface. The first inclined surface has an inclination angle corresponding to an inclination angle of an inclined surface formed on a member which is provided integrally with the slide and vertically moves with the slide. The second inclined surface has an inclination angle corresponding to an inclination angle of an inclined surface formed on the balance weight.
B30B 1/06 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by lever mechanism operated by cams, eccentrics, or cranks
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
A double-blank detecting apparatus for a press machine that is provided with a die cushion apparatus and is configured to form blanks one by one automatically and repeatedly. The double-blank detecting apparatus includes: a position signal acquiring unit configured to acquire a slide position signal indicating a position of a slide of the press machine; a load signal acquiring unit configured to acquire a die cushion load signal indicating a die cushion load generated on a cushion pad of the die cushion apparatus; and a double-blank detector configured to detect a state in which a plurality of blanks are stacked as a double blank based on the slide position signal acquired by the position signal acquiring unit and the die cushion load signal acquired by the load signal acquiring unit.
A gas cushion device includes a cylinder, a piston slidably fitted in the cylinder, a gas enclosed in the cylinder to energize the piston, and an oil feeding mechanism configured to feed a lubricating oil to a fitting portion between the cylinder and the piston. The cylinder and the piston are fitted in an interference fit state. The piston is reduced in diameter from an inside of the cylinder toward the outside of the cylinder.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 7/09 - Vibration-dampersShock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
43.
Servo press machine and setting method for servo press machine
A servo press machine includes a display unit that displays a strip-shaped region for setting a motion of a slide and an operation unit that receives an input operation. A range extending from an upper end of the strip-shaped region to a lower end thereof corresponds to a movement range of the slide in a linear movement, and the strip-shaped region is formed of a plurality of slide operation regions that are consecutive in a direction in which the strip-shaped region extends. Each of the slide operation regions can set a speed of the slide in response to the input operation received by the operation unit, and a boundary between adjacent two of slide operation regions can move along the direction in which the strip-shaped region extends in response to the input operation received by the operation unit.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 15/14 - Control arrangements for mechanically-driven presses
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
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
44.
Cushion pin pressure equalizing device, die cushion device with cushion pin pressure equalizing function and cushion pin pressure equalizing method
A cushion pin pressure equalizing device that can absorb a variation in height of a plurality of cushion pins and control a die cushion load highly accurately, a die cushion device, and a cushion pin pressure equalizing method are provided. An initial pressure in ascending-side pressurizing chambers of a pressure equalizing hydraulic cylinder group for absorbing a variation in height of cushion pins is controlled so as to be an appropriate pressure. The variation in height of the plurality of cushion pins can be absorbed within a shortest stroke of a slide after the slide comes into collision with a cushion pad so as to equalize die cushion loads that are applied individually to the cushion pins and a target die cushion load can be generated within the shortest stroke of the slide, whereby a response to application of the die cushion load can be stabilized without excessive delay.
A press system providing excellent energy efficiency for a whole press system and capable of achieving low prices is provided. A die cushion apparatus constituting a press system supports a cushion pad, includes a hydraulic cylinder which generates a die cushion load on the cushion pad when a slide of a press machine descends, the press machine includes a hydraulic cylinder which generates part of a press load on the slide when the slide descends. The pressure generation chamber of the hydraulic cylinder for generating a die cushion load and the pressure generation chamber of the hydraulic cylinder for generating part of the press load can communicate with each other via pipes and a first logic valve for a period during which the die cushion load acts.
B21D 24/14 - Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
B30B 15/16 - Control arrangements for fluid-driven presses
B30B 15/22 - Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
46.
Workpiece holding tool changing system for a workpiece conveying apparatus of a transfer press machine
Provided is a workpiece holding tool changing system configured to change at least one of a relative position and a posture of a holding tool of a workpiece conveying apparatus with respect to a feed bar. The feed bar includes at least one set among: an X-axis direction linear mechanism with an X-axis linear brake; a Y-axis direction linear mechanism with a Y-axis linear brake; a Z-axis direction linear mechanism with a Z-axis linear brake; and a ball joint portion and a ball brake. Under a state in which inhibition of movement or change in posture by a corresponding brake is canceled, a robot changes the relative position or the posture of the holding tool to a desired relative position or a desired posture. After the change, the workpiece holding tool changing system is brought into a holding state in which the movement or the change in posture is inhibited.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
This workpiece inversion device (10) comprises a first conveyor (20) for conveying a workpiece (4), a second conveyor (30) for conveying the workpiece, and a rotary drive unit (12) for rotating the first conveyor and the second conveyor together. The rotary drive unit rotates the first conveyor and the second conveyor around a central rotational axis (14) extending in a direction orthogonal to the direction of conveyance of the workpiece in the first conveyor and the second conveyor. By driving the rotary drive unit, the workpiece can be inverted around the central rotational axis that is orthogonal to the direction of conveyance of the workpiece.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/12 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
49.
Workpiece conveying apparatus for a pressing machine
A workpiece conveying apparatus for a pressing machine includes an arm unit including: a first arm; a second arm; a workpiece holding portion configured to hold a workpiece; a first arm drive mechanism; and a second arm drive mechanism. A pipe or the like arranged on an outer side of a second joint is supported at one side thereof by the first arm, and is supported at another side thereof by the second arm. When the first arm and the second arm are bent and stretched between a folded state and an extended state for workpiece conveyance, the pipe or the like is deformed utilizing a holding angle between the first arm and the second arm so that the pipe or the like is arranged so as to prevent swing of the pipe or the like about the second joint at the time of the workpiece conveyance.
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 7/14 - 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 co-ordinated in production lines
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
B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
50.
Wrinkle generation detecting device, die cushion device and die protection device, and wrinkle generation detecting method, die cushion force automatic setting method and die protecting method
In a press machine having a die cushion device which supports a cushion pad and which generates a die cushion force when a slide of the press machine is lowered, the wrinkle generation detection device includes: a slide position detector which detects a height position of the slide; a cushion pad position detector which detects a height position of the cushion pad; and a computing unit which consecutively calculates a deviation between the height position of the slide detected by the slide position detector and the height position of the cushion pad detected by the cushion pad position detector, during a time period from the start of forming of a material by the slide lowering to the end of the forming, wherein a wrinkle generated in the material is detected based on an increase of the deviation consecutively calculated by the computing unit.
B21D 22/22 - Deep-drawing with devices for holding the edge of the blanks
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 24/14 - Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
B30B 15/02 - DiesInserts therefor or mountings thereofMoulds
B30B 15/14 - Control arrangements for mechanically-driven presses
B21D 55/00 - Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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
A servo press machine includes an eccentric shaft, a connecting rod, a slide, an eccentric shaft-side sliding surface, a connecting rod-side sliding surface, an oil supply port, and a supply mechanism. The oil supply port opens on the eccentric shaft-side sliding surface or the connecting rod-side sliding surface, and supplies a lubricant between the eccentric shaft-side sliding surface and the connecting rod-side sliding surface. The supply mechanism supplies the lubricant to the oil supply port. The eccentric shaft-side sliding surface is formed on the eccentric shaft that is rotationally driven by a servomotor. The oil supply port is formed on the connecting rod-side sliding surface of the connecting rod that moves upward and downward due to the rotational driving of the eccentric shaft.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
F16N 7/22 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means the oil being carried up by a lifting device with one or more members moving around the shaft to be lubricated shaped as rings
F16N 3/08 - Oil cansOil syringes incorporating a piston-pump
A workpiece conveying apparatus for a pressing machine includes: a first arm supported so as to be rotatable within a substantially horizontal plane; a second arm supported on the first arm so as to be rotatable within the substantially horizontal plane; a workpiece holding device supported on a distal end side of the second arm so as to be rotatable within the substantially horizontal plane; a first arm drive mechanism configured to drive the first arm to rotate; a second arm drive mechanism configured to drive the second arm to rotate with respect to the first arm; a workpiece holding device rotation drive mechanism configured to drive the workpiece holding device to rotate with respect to the second arm; and a tilt drive mechanism configured to drive the workpiece holding device to rotate with respect to the second arm.
B65G 47/14 - Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
B65G 47/91 - Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
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
B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
B23Q 7/14 - 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 co-ordinated in production lines
The double blank detecting device for a press machine uses a press machine with a die cushion device attached thereto, and automatically and repeatedly forms blank materials one by one. The double blank detecting device includes: a position signal acquiring unit that acquires a die cushion position signal indicating a position of a cushion pad of the die cushion device; a load signal acquiring unit that acquires a die cushion load signal indicating a die cushion load generated in the cushion pad of the die cushion device; and a double blank detecting unit that detects, as a double blank, a state where a plurality of the blank materials are overlapped, based on the die cushion position signal and the die cushion load signal that are acquired.
To provide a die cushion device which is inexpensive, functional, and capable of locking completely (at or below the slide bottom dead center). The die cushion device includes a cushion pad, a hydraulic cylinder that moves the cushion pad up and down, and a hydraulic closed circuit connected to a die cushion pressure generation chamber of the hydraulic cylinder. The hydraulic closed circuit includes a cushion pad lowering pressure generation line and a second system pressure line in addition to a die cushion pressure generation line and a first system pressure line. When the cushion pad is locked at the bottom dead center, the cushion pad lowering pressure generation chamber is connected to the first system pressure line, and the die cushion pressure generation chamber is connected to the second system pressure line such that the cushion pad is held at or below the slide bottom dead center.
A part of kinetic energy during lowering of a slide of a press machine is converted into oil hydraulic energy by a first oil hydraulic cylinder, and the converted oil hydraulic energy (hydraulic oil having boosted first system pressure) is stored in a first accumulator. The hydraulic oil having the first system pressure stored in the first accumulator is discharged in knockout process, a second oil hydraulic cylinder that functions as a knockout cylinder is raised to perform knockout operation of a product worked by the press machine. Consequently, it is possible to perform knockout operation without using a dedicated driving source such as an oil pressure source and an air pressure source, and provide a low-cost hydraulic knockout device.
B30B 15/16 - Control arrangements for fluid-driven presses
F15B 11/20 - Servomotor systems without provision for follow-up action with two or more servomotors controlling several interacting or sequentially-operating members
F15B 1/02 - Installations or systems with accumulators
B21J 9/12 - Drives for forging presses operated by hydraulic or liquid pressure
F15B 21/042 - Controlling the temperature of the fluid
A sliding frictional force generation mechanism includes a metal hole member having a hole, a metal shaft member fitted in the hole of the hole member in an axially slidable manner, and a lubrication mechanism configured to supply lubricating oil serving as a cooling medium between the holed ember and the shaft member. The shaft member is fitted in the hole in an interference fit state.
A die cushion device of a press machine includes a hydraulic cylinder that supports a cushion pad and generates die cushion force when a slide of the press machine descends, an orifice and a hydraulic pump/motor that are connected to each other in in parallel between a lower chamber of the hydraulic cylinder and a tank, a servo motor connected to a rotating shaft of the hydraulic pump/motor, and a control unit that controls torque of the servo motor to control the die cushion force, wherein a rotation direction of the servo motor switches from a first rotation direction in which the hydraulic pump/motor serves as a hydraulic motor to a second rotation direction in which the hydraulic pump/motor serves as a hydraulic pump, during generation of the die cushion force.
There is provided a die cushion device that includes a cushion pad, a hydraulic cylinder configured to lift the cushion pad, and a hydraulic closed circuit connected to a die cushion pressure creation chamber of the hydraulic cylinder. The hydraulic closed circuit includes a pilot drive type logic valve that is operable as a main relief valve at the time of the die cushion operation, and a pilot relief valve configured to create pilot pressure for controlling the logic valve. Hydraulic oil is filled in the hydraulic closed circuit, in a pressurized manner, and the hydraulic oil in the hydraulic closed circuit is pressurized by only die cushion force applied from the cushion pad through the hydraulic cylinder, in one cycle period of the cushion pad.
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
61.
Device and method of shim adjusting of die-cushion device
A plurality of hydraulic cylinders capable of adjusting height direction positions of a plurality of die-cushion pins that are inserted into a plurality of die-cushion pin holes formed in a bolster, respectively, are arranged in a lattice state on a cushion pad, and the hydraulic cylinder faced with a die-cushion pin located below a projection surface of a blank holder in the plurality of hydraulic cylinders is selected. Then, by independently adjusting a height direction position of a piston rod of each of the selected hydraulic cylinders, respectively, the shim adjustment of substantially each of the die-cushion pins is realized.
A workpiece conveying apparatus includes: two SCARA robots each including a first arm supported on a raising and lowering frame through intermediation of a first joint, a second arm supported through intermediation of a second joint, a first arm driving mechanism configured to drive the first arm to rotate, and a second arm driving mechanism configured to drive the second arm to rotate; a raising and lowering mechanism for the two SCARA robots; a cross arm configured to couple distal ends of the second arms; a workpiece holding unit configured to releasably hold the workpiece; shifting devices provided to the cross arm and configured to shift a drive-side shifting member; and sliding devices provided to the workpiece holding unit and configured to shift the tool holder by an operation of causing the driven-side shifting member to be driven by the drive-side shifting member.
B25J 15/04 - Gripping heads with provision for the remote detachment or exchange of the head or parts thereof
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
Provided is a workpiece conveying apparatus including: two SCARA robots each including: a raising and lowering frame supported on a stationary frame so as to be movable in an up-and-down direction, the stationary frame being mounted to extend along a width direction orthogonal to a workpiece conveying direction of a passage space for conveying a workpiece; a first arm supported on the raising and lowering frame through intermediation of a first joint; a second arm held through intermediation of a second joint; a first arm driving mechanism configured to drive the first arm to rotate; and a second arm driving mechanism configured to drive the second arm to rotate; raising and lowering mechanisms arranged to correspond to the two SCARA robots, respectively, and configured to enable the corresponding raising and lowering frames to mutually independently move in the up-and-down direction; a cross arm; and a cross bar unit.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
B21D 43/18 - Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
B65G 47/90 - Devices for picking-up and depositing articles or materials
B65G 47/91 - Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
64.
Slide motion control apparatus for mechanical press
A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector.
B30B 15/14 - Control arrangements for mechanically-driven presses
B30B 1/24 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by rack-and-pinion means
B30B 1/18 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
B30B 15/24 - Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
65.
Die cushion device and method of controlling the die cushion device
A die cushion device includes a hydraulic cylinder that supports a cushion pad and generates die cushion force when the slide of the press machine descends, a first hydraulic circuit that is connected to a cap side hydraulic chamber of the hydraulic cylinder, and a second hydraulic circuit that is connected to a rod side hydraulic chamber. Before die cushion force control starts, the second hydraulic circuit of the die cushion device causes hydraulic oil in the rod side hydraulic chamber to be prevented from flowing out, and the first hydraulic circuit of the die cushion device causes the cap side hydraulic chamber to be pressurized.
A workpiece conveying apparatus includes: a conveying table including a workpiece supporting mechanism; a first arm and a second arm each having one end pivotally coupled to the conveying table; a first moving unit coupled to another end of the first arm; a second moving unit coupled to another end of the second arm; and a posture control unit configured to control a posture of the conveying table through control of an angle between the conveying table and one of the first arm and the second arm, in which the first and second moving units are movable by a moving mechanism in a workpiece conveying direction, in which the conveying table is lifted up and down through a change of an interval between the first and second moving units, and in which these moving units are moved in the same direction to convey the workpiece.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B65G 47/90 - Devices for picking-up and depositing articles or materials
B65G 47/96 - Devices for tilting links or platforms
B21D 43/18 - Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
B65G 47/91 - Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
B65G 54/02 - Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
A slide cushion device includes: a hydraulic cylinder group integrally formed in a board provided immediately below a slide; a pressing member that is disposed in a recessed portion of an upper die that vertically moves together with the slide, in a vertically movable manner; a plurality of slide cushion pins that is provided in the pressing member and penetrates the upper die to be brought into contact with a piston member of the hydraulic cylinder group, wherein a number of the cushion pins is less than a number of hydraulic cylinders disposed in a plane of projection of the recessed portion; and a slide cushion hydraulic device that controls hydraulic pressure to be supplied to a compression chamber of the hydraulic cylinder with which a slide cushion pin is to be brought into contact.
A first delivery controller reports, to a first press controller, the time point at which a first delivery device exits a region of interference with a first press machine. The first press controller controls the first press machine such that the slide of the first press machine enters a region of interference with the first delivery device after the time point at which the first delivery device exits said region of interference, and reports, to a second delivery controller, the time point at which the slide of the first press machine exits a region of interference with a second delivery device. The second delivery controller controls the second delivery device so that the second delivery device enters a region of interference with the first press machine after the time point at which the slide of the first press machine exits said region of interference.
B30B 13/00 - Methods of pressing not special to the use of presses of any one of the preceding main groups
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
According to the die cushion apparatus of a press machine and the die cushion controlling method of the present invention, in holding the cushion pad on standby at a desired standby position, it is possible to hold the cushion pad on standby in parallel with the lower faces of the dies mounted to the slide, and if the lower faces of the dies are inclined, it is possible to hold the cushion pad on standby in the state of being inclined. Through this configuration, it is possible to easily allow the material to come into contact with the lower faces of the dies from the beginning of the die cushion force control (beginning of the collision), and also possible to smoothen the die cushion action in the plane, thereby enhancing the formability.
B21D 24/14 - Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
B30B 15/24 - Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 22/22 - Deep-drawing with devices for holding the edge of the blanks
70.
Die cushion-cum-slide cushion device and method of controlling the same
A die cushion-cum-slide cushion device selectively opens and closes a flow channel between a hydraulic pump/motor driven by a servo motor, and hydraulic cylinders that generate slide cushion force, or a flow channel between the hydraulic pump/motor, and hydraulic cylinders that generate die cushion force, by switching a selector valve. Before applying the slide cushion force is started, the servo motor is controlled to allow the hydraulic cylinders to generate required slide cushion force through a check valve. While the slide cushion force is applied, hydraulic circuits, each of which includes a logic valve, control pressure of the hydraulic cylinders, and hydraulic circuits, each of which includes the servo motor, control die cushion pressure of the hydraulic cylinders.
A dynamic balance device of a press machine is provided with a plurality of cam parts 80 for transmitting up and down motion of a slide to balance weights 70 and actuating the balance weights 70 in the opposite direction of the up and down motion of the slide. The cam parts 80 are provided so as to be capable of moving in a direction substantially orthogonal to the actuated direction of the slide, and each cam part 80 is provided with a first inclined surface 81 having an angle of inclination corresponding to the angle of inclination of an inclined surface 31 formed in a member 30 that is provided integrally with the slide and that moves up and down with the slide, and a second inclined surface 82 having an angle of inclination corresponding to the angle of inclination of an inclined surface 71 formed in each of the balance weights 70.
A die cushion device of a press machine includes: a plurality of cushion pads; a plurality of die cushion force generators that supports the plurality of respective cushion pads, and that is capable of independently moving up and down the plurality of respective cushion pads as well as independently generating die cushion force for each of the cushion pads; and a die cushion controller that controls the plurality of die cushion force generators to independently move up and down the plurality of respective cushion pads as well as to independently generate die cushion force for each of the cushion pads.
B21D 24/10 - Devices controlling or operating blank holders independently, or in conjunction with dies
F16F 15/027 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means comprising control arrangements
B30B 15/02 - DiesInserts therefor or mountings thereofMoulds
73.
Bending apparatus and bending method for a plate-shaped metal workpiece
Provided is a bending apparatus for a plate-shaped metal workpiece, including: a suction device (suction pad) configured to suck a surface of a plate-shaped metal workpiece in a removable manner; a plurality of expansion and contraction devices (servo screw jacks) each including the suction device mounted on a distal end thereof and being capable of expanding and contracting a length ranging from a proximal end thereof to the suction device; and an apparatus base (bed) on which the proximal end of each of the expansion and contraction devices is mounted. The bending apparatus is configured to form the plate-shaped metal workpiece under bending deformation by expanding and contracting the expansion and contraction devices under a state in which the suction device sucks the surface of the plate-shaped metal workpiece.
A press system for knocking out a work from a lower die attached to a press machine has a cam 22 mounted on a bed of the press machine; a servo motor 21 which drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pin 23 moved with reciprocal linear motion by the rotation of the cam; a detector 25 configured to detect a present angle information 24 of the cam, a memory storing a target angle information of the cam, and a controller 28 configured to control the servo motor in accordance with the present angle information and the target angle information. The controller is further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
B30B 15/14 - Control arrangements for mechanically-driven presses
75.
Apparatus and method for checking inclination of cushion pad
An apparatus for checking an inclination of a cushion pad includes: a plurality of height position detectors that detect a plurality of respective height positions in a vertical direction at a plurality of positions different in a horizontal direction of the cushion pad; an inclination measurement unit that measures information on an inclination of the cushion pad in accordance with the plurality of height positions detected by the plurality of respective height position detectors; and an input/output unit that outputs the information on an inclination of the cushion pad measured by the inclination measurement unit to a display or a printer in a visible manner.
To provide a work transfer apparatus which can transfer works at high speed with controlling respectively the posture of the right and left of works. The work transfer apparatus includes an arm moving back and forth between machines in order to transfer work(s), a crossbar coupled to the arm, and a pair of right and left work holding devices provided at the left and right sides of the crossbar and tilt drive devices being provided on the arm, respectively controlling the work holding devices to rotate around an axis of a longitudinal direction of the crossbar.
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
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
77.
Die cushion device and control method of die cushion device
There are provided position controllers each of which controls a position of a cushion pad by controlling a hydraulic machine that supplies pressure oil to a die cushion pressure generation chamber of a hydraulic cylinder, and pressure controllers each of which controls pressure in the die cushion pressure generation chamber of the hydraulic cylinder, and in particular, during a rising process of a slide of a press machine, position control by the position controller and pressure control by the pressure controller are switched to enable press forming also during the rising process.
The workpiece conveying apparatus for a pressing machine includes: a rotary base rotatable about a substantially perpendicular axis; a first arm pivotally supported by the rotary base so as to be rockable within a substantially perpendicular plane; a coupler pivotally supported on a distal end side of the first arm so as to be rockable; a second arm having a proximal end side that is mounted to the coupler so as to be rockable; a cross bar mounted to a distal end side of the second arm so as to be rockable within a plane substantially parallel to a rocking plane of the second arm; and a workpiece holding device mounted to the cross bar.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
B25J 11/00 - Manipulators not otherwise provided for
There is provided a die cushion device that includes a cushion pad, a hydraulic cylinder configured to lift the cushion pad, and a hydraulic closed circuit connected to a die cushion pressure creation chamber of the hydraulic cylinder. The hydraulic closed circuit includes a pilot drive type logic valve that is operable as a main relief valve at the time of the die cushion operation, and a pilot relief valve configured to create pilot pressure for controlling the logic valve. Hydraulic oil is filled in the hydraulic closed circuit, in a pressurized manner, and the hydraulic oil in the hydraulic closed circuit is pressurized by only die cushion force applied from the cushion pad through the hydraulic cylinder, in one cycle period of the cushion pad.
F15B 1/02 - Installations or systems with accumulators
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
80.
Die cushion force control method and die cushion device
There are provided a die cushion force control method and a die cushion device that can improve response delay of die cushion force without changing die cushion waiting position upward. In the die cushion force control method, a servo motor is driven according to a die cushion force command B previously set and the die cushion force is generated on the cushion pad. The die cushion force control method includes a step of allowing the cushion pad to wait in a predetermined die cushion waiting position at which a die cushion force action will start, and a preliminary pressurization step of outputting the die cushion force command B and preliminary applying pressure to the cushion pad before a slide of a press machine reaches the die cushion waiting position.
A breakage prevention mechanism is configured to prevent deformation or breakage of a crossbar and transfer the work even in the condition where a pair of left and right arm supporting the both end of the cross bar is displaced beyond assumption. The breakage prevention mechanism is equipped with a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. The plunger is placed between both end of the crossbar and arm, in which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/11 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
B25J 11/00 - Manipulators not otherwise provided for
B21D 55/00 - Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
A press machine is provided with a bottom dead center position correction control section, a selected lower bottom dead center position setting section, and a bottom dead center position switching section. The bottom dead center position correction control section is configured to perform, based on the selected bottom dead center position after the switching and the detected bottom dead center position, positional correction so that the actual bottom dead center position of the slide is adjusted to the selected bottom dead center position.
B30B 15/14 - Control arrangements for mechanically-driven presses
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
B21D 28/22 - Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
The die cushion force setting apparatus according to an aspect of the present invention allows die cushion forces (component forces) acting on plural driving shafts to be set easily, makes it easy to apply strong or weak die cushion forces to a complex-shaped drawn part in a plane of a cushion pad, and provides a smooth die cushion force distribution. An operator manually enters a total die cushion force, axial component force of a left front hydraulic cylinder, and center-of-force position by operating an input device. Based on the information entered via the input device, the numerical computing device B1 calculates axial component forces of three hydraulic cylinders through numerical computations. The one axial component force thus entered and three axial component forces thus computed numerically are set as the axial component forces of four hydraulic cylinders.
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
A servo transfer feeder is configured to transfer a workpiece that is held by a holding member between an upstream press and a downstream press, and includes a storage section that stores a basic cam curve, a maximum velocity, and a maximum acceleration, a moving time calculation section that respectively calculates different moving times as to the moving distance of the holding member by limiting the basic cam curve respectively to the maximum velocity and the maximum acceleration, and a cam curve generation section that generates a motion cam curve by reflecting the moving distance and a longer one of the different moving times to the basic cam curve. The holding member moves between the upstream press and the downstream press, based on the motion cam curve.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
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]
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
85.
Servo press line operation method and servo press line operation control device
A servo press line operation method operates a servo press line in which a servo press and a servo transfer device are disposed in a workpiece transfer direction. The servo press line operation method includes causing a transfer controller to receive a master signal that causes the servo transfer device to make a motion in synchronization with the servo press, the transfer controller controlling a motor of the servo transfer device using a motor instruction, causing the transfer controller to determine whether or not an abnormality in the master signal has occurred, and causing the transfer controller to generate the motor instruction based on a stop signal that stops the motor of the servo transfer device, instead of the master signal, when the transfer controller has determined that an abnormality in the master signal has occurred.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
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]
B30B 15/28 - Arrangements for preventing distortion of, or damage to, presses or parts thereof
86.
Die cushion force control method and die cushion apparatus
A die cushion force control method and a die cushion apparatus generates a die cushion force on a cushion pad based on a die cushion force command value set in advance. A die cushion force command value equal to or larger than a target die cushion force command value is outputted initially in order to suppress an initial die cushion force overshoot generated when the target die cushion force command value configured to be stepwise is used as the die cushion force command value, then a die cushion force command value decreased continuously (gradually) so as to be smaller than the target die cushion force command value is outputted, and subsequently a die cushion force command value increasing gradually so as to be equal to the target die cushion force command value is outputted.
The present invention provides a servo press system and a drawing method using the servo press system. The drawing method according to the aspect of the present invention includes: a stopping step of stopping the slide for a first period in a course of a stroke for performing drawing; a keeping step of reducing the die cushion force to below a predetermined die cushion force and keeping the die cushion force for a second period within the first period for which the slide is stopped; and a restarting step of restarting the slide after keeping the die cushion force for the second period, wherein drawing including the stopping step, the keeping step, and the restarting step is performed at least one time in the course of the stroke for performing drawing.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
There is provided a press machine which can apply a large compression force to a mold as well as impart smooth vibration only in a rectilinear advancing direction to the mold, and thereby can improve the press-formability. A main slide and a sub-slide constitute a slide and at the same time a cylinder-piston mechanism. During press-forming, a compression force is transmitted to the sub-slide (an upper mold) through hydraulic pressure applied interlockingly with driving of the main slide, and the sub-slide is vibrated with the hydraulic pressure being periodically changed. Favorable press-forming can be performed even under relatively difficult press-forming conditions, by controlling the vibration such that a vibration frequency of the sub-slide (the upper mold) becomes 9 Hz or higher but 33.3 Hz or lower and a vibration amplitude of the sub-slide becomes 0.05 mm or larger but 0.5 mm or smaller.
B30B 15/16 - Control arrangements for fluid-driven presses
B23Q 5/033 - Driving main working members reciprocating members driven essentially by fluid pressure
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
B30B 1/34 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
B30B 15/14 - Control arrangements for mechanically-driven presses
B30B 15/20 - Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram controlling the speed of the ram, e.g. the speed of the approach, pressing or return strokes
89.
Die cushion apparatus of press machine and die cushion controlling method
According to the die cushion apparatus of a press machine and the die cushion controlling method of the present invention, in holding the cushion pad on standby at a desired standby position, it is possible to hold the cushion pad on standby in parallel with the lower faces of the dies mounted to the slide, and if the lower faces of the dies are inclined, it is possible to hold the cushion pad on standby in the state of being inclined. Through this configuration, it is possible to easily allow the material to come into contact with the lower faces of the dies from the beginning of the die cushion force control (beginning of the collision), and also possible to smoothen the die cushion action in the plane, thereby enhancing the formability.
B30B 15/24 - Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
B21D 24/14 - Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (Japan)
AIDA ENGINEERING, LTD. (Japan)
Inventor
Fujisawa Yukinari
Yahara Masataka
Nagase Hiroshi
Tajima Fumio
Yamaguchi Yoshihiro
Abstract
The purpose of the present invention is to improve torque in a composite torque rotating electric machine which uses permanent magnets having a low residual magnetic flux density such as ferrite magnets. This composite torque rotating electric machine is characterized by being provided with: a stator comprising armature windings arranged at a fixed interval at multiple positions on the inner periphery; a rotor which has a permanent magnet in a cylindrical core comprising laminated magnetic steel sheets and which is arranged inside of the stator; and magnetic flux blocking units which are provided across the circumferential direction on the outer periphery of the rotor and which block the closed loop magnetic flux generated around the stator windings. The magnetic flux blocking units are provided with multiple permanent magnets, and a non-magnetic body disposed between said permanent magnets. Further, the non-magnetic body is an air gap. Further, the distance between the permanent magnets and the non-magnetic part is characterized by being smaller than the interval at which the armature windings are arranged.
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (Japan)
AIDA ENGINEERING, LTD. (Japan)
Inventor
Fujisawa Yukinari
Yahara Masataka
Nagase Hiroshi
Tajima Fumio
Yamaguchi Yoshihiro
Abstract
The purpose of this invention is to increase torque in a composite torque rotating electric machine which uses permanent magnets having a low residual magnetic flux density such as ferrite magnets. This composite torque rotating electric machine is characterized by being provided with: a stator comprising armature windings arranged at a fixed interval at multiple positions in the circumferential direction; a rotor comprising a cylindrical core formed by laminating magnetic steel sheets; first permanent magnets arranged on axes (d) and in the circumferential direction on the outer periphery of the rotor; second permanent magnets arranged on axes (d) on the inner periphery side of the rotor across from the permanent magnets on the outer circumference side; third permanent magnets on axes (q) and extending in the longitudinally and radially of the rotor; and air gaps provided on the outer periphery side of the third permanent magnets and intermediate in the circumferential direction of the first permanent magnets. This composite torque rotating electric machine is further characterized by the radial distance between the first permanent magnets and the second permanent magnets being greater than the circumferential distance between the first permanent magnets and the air gaps, and by being provided with a rectifier means which comprises multiple slits between the first permanent magnets and the air gaps.
A work transfer apparatus includes an arm to transfer workpieces to be processed into a machine or carry processed workpieces out of the machine, a crossbar coupled to the arm, and right and left holding devices provided at the left and right sides of the crossbar. The crossbar includes an internal member and right and left cylindrical external members. One of the external members is rotatably provided around an outer surface of the internal member. The apparatus also includes tilt drive devices provided to the arm and connected with the external members. One of the tilt drive devices rotates one of the external members around an axis of a longitudinal direction of the crossbar independently of another of the external members.
B21D 43/10 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
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
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
04 - Industrial oils and greases; lubricants; fuels
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Lubricating oil. Mechanical presses; manual presses; hydraulic presses; oil
hydraulic presses; powder compacting presses and other
presses; shearing machines; forging machines; bending
machines and other secondary metalworking machines and
apparatus; cutting blades for cutting machine; cutting
blades for presses and other cutting tools; dies for forging
machines and dies for presses; holding devices for
metalworking dies, cutting tools, carbide tools and diamond
tools; other metal working machines and apparatus (including
robots for metalworking machines and apparatus); compression
moulding machines; injection moulding machines; moulds for
plastic; other moulding machines for plastic; AC motors and
DC motors (not including those for land vehicles but
including "parts" for any AC motors and DC motors); AC
generators (alternators); DC generators. CPUs and computers (including electronic circuits, magnetic
disc, magnetic tape recorded with computer programs and
other peripherals) and electronic circuits concerning
electronic control for mechanical presses, oil hydraulic
presses, hydraulic presses, powder compacting presses and
other presses; CPUs and computers (including electronic
circuits, magnetic disc, magnetic tape recorded with
computer programs and other peripherals) and electronic
circuits concerning electronic control for shearing
machines, forging machines, bending machines and other
secondary metalworking machines and apparatus; CPUs and
computers (including electronic circuits, magnetic disc,
magnetic tape recorded with computer programs and other
peripherals) and electronic circuits concerning electronic
control for other metal working machines and apparatus
(including robots for metalworking machines and apparatus);
CPUs and computers (including electronic circuits, magnetic
disc, magnetic tape recorded with computer programs and
other peripherals) and electronic circuits concerning
electronic control for compression moulding machines,
injection moulding machines, moulds for plastic, other
moulding machines for plastic; CPUs and computers (including
electronic circuits, magnetic disc, magnetic tape recorded
with computer programs and other peripherals) and electronic
circuits concerning electronic control for motors and
generators. AC motors and DC motors for land vehicles (not including
their parts). Maintenance and repair services for mechanical presses,
manual presses, oil hydraulic presses, hydraulic presses,
powder compacting presses and other presses; maintenance and
repair services for shearing machines, forging machines,
bending machines and other secondary metalworking machines
and apparatus; maintenance and repair services for cutting
blades for cutting machine, cutting blades for presses and
other cutting tools; maintenance and repair services for
dies for forging machines and dies for presses; maintenance
and repair services for holding devices for metalworking
dies, cutting tools, carbide tools and diamond tools;
maintenance and repair services for other metal working
machines and apparatus (including robots for metalworking
machines and apparatus); maintenance and repair services for
control devices of mechanical presses, manual presses,
hydraulic presses, oil hydraulic presses, powder compacting
presses and other presses; maintenance and repair services
for compression moulding machines, injection moulding
machines, moulds for plastic, other moulding machines for
plastic; maintenance and repair services for control devices
of compression moulding machines, injection moulding
machines, moulds for plastic, other moulding machines for
plastic. Rental of mechanical presses, manual presses, hydraulic
presses, oil hydraulic presses, powder compacting presses
and other presses; rental of shearing machines, forging
machines, bending machines and other secondary metalworking
machines and apparatus; rental of cutting blades for cutting
machine, cutting blades for presses and other cutting tools;
rental of dies for forging machines and dies for presses;
rental of other metal working machines and apparatus
(including robots for metalworking machines and apparatus);
rental of compression moulding machines, injection moulding
machines, moulds for plastic, other moulding machines for
plastic.
94.
DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER
In the present invention, a first die is filled with a mixed powder containing a lubricant, a first applied pressure is applied, molding a mixed powder intermediate compact that, when the highest real density that can be molded of the mixed powder intermediate compact by applying the first applied pressure is 100%, has a real density ratio of at least 85% and less than 96%, the molded mixed powder intermediate compact is heated, the mixed powder intermediate compact of which the temperature has been actively raised to the melting-point-equivalent temperature of the lubricant powder is set in a second die that has been warmed to the melting-point-equivalent temperature, a second applied pressure is applied to the mixed powder intermediate compact within the second die, and thus is molded a high-density mixed powder completed compact.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
95.
DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER, AND HIGH-DENSITY THREE-LAYER-STRUCTURED POWDER COMPACT
In the present invention, a first die (21D) is filled in the given order with: a first layer mixed powder (100F) that is a mixture of a basic metal powder and a low-melting-point lubricant powder and that has a small average particle size of the basic metal powder; a second layer mixed powder (100S) having a large average particle size of the basic metal powder; and a third layer mixed powder (100T) that has a small average particle size of the basic metal powder. A first applied pressure is applied to each layer mixed powder, molding an intermediate powder compact (110), the intermediate powder compact (110), which has been heated, is set in a second die (41D), and a second applied pressure is applied, thus molding a high-density three-layer-structured powder compact.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
96.
DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER
In the present invention, a first die (21D) is filled with a mixed powder (100), which is a mixture of a basic metal powder and a low-melting-point lubricant powder, a first applied pressure is applied to mold a mixed powder intermediate compact (110) with a form having a protruding section (110A) protruding in the direction from which pressure is applied compared to the form of a mixed powder completed compact (120), the mixed powder intermediate compact (110) is heated to actively raise the temperature of the mixed powder intermediate compact (110) to the melting-point-equivalent temperature of the lubricant powder, and the heated mixed powder intermediate compact (110) is subjected to a second applied pressure within a second die (41D) and is pressure molded while subjecting the protruding section (110A) to crushing compression in the direction from which pressure is applied in order to complete a high density mixed powder completed compact (120) having an intended form.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
97.
DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER
In the present invention, a mixed powder (100) filling the inside of a container cavity (24) is transferred into the cavity of a first die, a first applied pressure is applied to the mixed powder (100) in the first die (31), molding an intermediate powder compact (110), the post-molding first die (31) and intermediate powder compact (110) are heated, causing the intermediate powder compact (110) to be warmed to the melting-point-equivalent temperature of a lubricant, the post-warming intermediate powder compact (110) is transferred into the cavity of a second die (61) and a second applied pressure is applied, thus molding a high-density completed powder compact.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
98.
HIGH-DENSITY MOLDING DEVICE AND HIGH-DENSITY MOLDING METHOD FOR MIXED POWDER
In the present invention, a first die having inner dimensions that are 1-5% smaller with respect to the 100% inner dimensions of a second die is filled with a mixed powder that is a mixture of a basic metal powder and a low-melting-point lubricant powder, a first applied pressure is applied to the mixed powder within the first die, molding a mixed powder intermediate compact, the mixed powder intermediate compact is heated, actively raising the temperature of the mixed powder intermediate compact to the melting point equivalent temperature of the lubricant powder, and the post-temperature-raising mixed powder intermediate compact is subjected to a second applied pressure within a second die that has been warmed to the melting point equivalent temperature, molding a high-density mixed powder completed compact.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
99.
Slide motion control apparatus for mechanical press
A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector.
B30B 15/14 - Control arrangements for mechanically-driven presses
B30B 1/18 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
B30B 1/24 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by rack-and-pinion means
B30B 1/26 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
100.
HIGH-DENSITY MOLDING DEVICE AND HIGH-DENSITY MOLDING METHOD FOR MIXED POWDER
In the present invention, a first die is filled with a mixed powder resulting from admixing 0.1-0.2% by weight ratio of a low-melting-point lubricant powder to a basic metal powder, a first applied pressure is applied within the first die, molding a mixed powder intermediate compact having a real density ratio of 80-90%, the mixed powder intermediate compact is heated, actively raising the temperature of the mixed powder intermediate compact to a melting point equivalent temperature of the lubricant powder, the temperature-elevated mixed powder intermediate compact is set in a second die that has been warmed to the melting point equivalent temperature, and a second applied pressure is applied to the mixed powder intermediate compact within the second die, molding a high-density mixed powder completed compact.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
H01F 1/153 - Amorphous metallic alloys, e.g. glassy metals
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
