WO2021215346A1 - ワーク交換治具及び切断加工システム - Google Patents

ワーク交換治具及び切断加工システム Download PDF

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Publication number
WO2021215346A1
WO2021215346A1 PCT/JP2021/015599 JP2021015599W WO2021215346A1 WO 2021215346 A1 WO2021215346 A1 WO 2021215346A1 JP 2021015599 W JP2021015599 W JP 2021015599W WO 2021215346 A1 WO2021215346 A1 WO 2021215346A1
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WO
WIPO (PCT)
Prior art keywords
cut
work
jig
basket
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/015599
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English (en)
French (fr)
Japanese (ja)
Inventor
主命 眞武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Corp filed Critical Fanuc Corp
Priority to DE112021002428.0T priority Critical patent/DE112021002428T5/de
Priority to CN202180029628.2A priority patent/CN115443201B/zh
Priority to US17/918,803 priority patent/US20230141769A1/en
Priority to JP2022517009A priority patent/JP7457106B2/ja
Publication of WO2021215346A1 publication Critical patent/WO2021215346A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for
    • B23H11/003—Mounting of workpieces, e.g. working-tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J11/00—Manipulators not otherwise provided for
    • B25J11/005—Manipulators for mechanical processing tasks
    • B25J11/0055—Cutting

Definitions

  • the present invention relates to a work exchange jig and a cutting processing system.
  • a wire electric discharge machine is known as one of the cutting machines for cutting a workpiece.
  • a work workpiece
  • a processing tank filled with a processing liquid the work is cut by utilizing the electric discharge phenomenon that occurs between the conductive wire electrode and the work. can do.
  • Cited Document 1 discloses a method in which a robot holds a work and a cut-off portion. In this method, since it is necessary to make the movement of the robot follow the movement of the wire, the control becomes complicated, and it may be a factor that the machining accuracy is deteriorated more than the machining accuracy of the wire electric discharge machine.
  • the robot may come into contact with the structure of the wire electric discharge machine during machining and damage it.
  • the possibility that the robot comes into contact with the wire electric discharge machine can be reduced, but the operating range of the wire is also limited, so that the processing range is narrowed.
  • the work exchange jig is removable to and from the cutting machine, and holds the work to be cut by the cutting machine.
  • the work replacement jig includes a jig body that holds the work, a cutting cage that receives the cut-off portion cut off from the work by the cutting machine, and an arm portion that supports the cutting-off basket with respect to the jig body. And have.
  • the cut-off portion can be easily collected for each cutting process.
  • FIG. 1 is a side view showing a configuration of a cutting processing system according to the present embodiment.
  • FIG. 2 is a plan view of the cutting processing system of FIG.
  • FIG. 3 is a diagram showing a table of the wire electric discharge machine of FIG.
  • FIG. 4 is a perspective view showing an example of the work changing jig of FIG.
  • FIG. 5 is a plan view of the work exchange jig of FIG.
  • FIG. 6 is an end view of the cut portion AA ′ showing an example of the cut-off basket of FIG.
  • FIG. 7 is an end view of the cut portion AA ′ showing another example of the cut-off basket of FIG.
  • FIG. 8 is an end view of the cut portion AA ′ showing another example of the cut-off basket of FIG.
  • FIG. 1 is a side view showing a configuration of a cutting processing system according to the present embodiment.
  • FIG. 2 is a plan view of the cutting processing system of FIG.
  • FIG. 3 is a diagram showing a table of
  • FIG. 9 is an end view of the BB'cut portion showing an example of the cut-off basket of FIG.
  • FIG. 10 is an end view of the BB'cut portion showing another example of the cut-off basket of FIG.
  • FIG. 11 is a perspective view showing another example of the cut-off basket of FIG.
  • FIG. 12 is a diagram showing an example of a structure for adjusting the relative position of the cut-off basket with respect to the jig main body of FIG.
  • FIG. 13 is a diagram showing another example of a structure for adjusting the relative position of the cut-off basket with respect to the jig main body of FIG.
  • FIG. 14 is a diagram showing another example of a structure for adjusting the relative position of the cut-off basket with respect to the jig main body of FIG.
  • the cutting processing system 10 includes a wire electric discharge machine 30 for cutting the work W and a plurality of work changing jigs 20 holding the work W.
  • the robot arm mechanism 40 is arranged between the storage shelf 50 and the wire electric discharge machine 30, and the disposal bucket 60 is a work exchange jig 20 between the robot arm mechanism 40 and the storage shelf 50. It is placed on the transport path.
  • the wire electric discharge machine 30 can be replaced with another cutting machine such as a saw blade cutting machine having a function of cutting the work W. Further, the robot arm mechanism 40 can be replaced with another type of transport loader mechanism having a function of transporting the work exchange jig 20.
  • the cutting processing procedure of the work W using the cutting processing system 10 is as follows.
  • a plurality of work exchange jigs 20 in a state of holding the work W before the cutting process are stored in the storage shelf 50.
  • the work exchange jig 20 housed in the storage shelf 50 is grasped by the robot arm mechanism 40, conveyed to the inside of the processing tank 31 of the wire electric discharge machine 30, and the chuck of the table 33 inside the processing tank 31. It is attached to the member 35 (see FIG. 3).
  • the wire electric discharge machine 30 starts cutting the work W.
  • the work exchange jig 20 in a state of holding the work W1 after the cutting process and the cut-off portion W2 cut off from the work W before the cutting process is a robot arm.
  • the mechanism 40 it is removed from the chuck member 35 of the table 33 inside the processing tank 31, and is transported to and accommodated in the storage shelf 50.
  • the cut-off portion W2 held by the work changing jig 20 is discarded by the robot arm mechanism 40 executed above the disposal bucket 60 while the work changing jig 20 is being conveyed from the wire electric discharge machine 30 to the storage shelf 50. Upon operation, it is released into the disposal bucket 60. Since the waste bucket 60 is arranged on the transport path of the work exchange jig 20 between the wire electric discharge machine 30 and the storage shelf 50 for storing the work exchange jig 20 after the cutting process, the work exchange jig 60 It is possible to shorten the time for discarding the cut-off portion W2 held at 20, and it is possible to suppress a decrease in work efficiency. Further, since the worker does not need to collect the cut-off portion W2 from the work replacement jig 20 stored in the storage shelf 50, the cutting processing system 10 can be operated unmanned without imposing a work load on the worker. ..
  • the work replacement jig 20 has a function of holding the work W1 after the cutting process and the cut-off portion W2 cut off from the work W before the cutting process, the cut-off portion is formed every time the cutting process is performed. W2 can be collected together with the work changing jig 20 that holds it. Since the cut-off portion W2 does not remain in the processing tank 31, the risk that the cut-off portion W2 interferes with the operation of the wire electric discharge machine 30 can be reduced.
  • the recovery operation of the work exchange jig 20 by the robot arm mechanism 40 or the operator is the cutting process of the conventional cutting process system. Since it is included in the procedure and it is not necessary to add a new procedure for collecting the cut-off portion W2, it does not significantly reduce the work efficiency of the conventional cutting process.
  • the work changing jig 20 includes a jig main body 21 for holding the work W before cutting, a cutting basket 25 for receiving the cut portion W2 cut off from the work W, and a cutting basket 25. It has an arm portion 23 that supports the cut-off basket 25 with respect to the jig main body 21.
  • the jig body 21 is a mounting tool for attaching the work replacement jig 20 to the chuck member 35 of the base portion 33 of the wire electric discharge machine 30 on a vise (vise) that sandwiches and fixes the work W between two members. Is detachably provided.
  • the jig main body 21 has a rectangular plate-shaped main body base portion 210.
  • the axis parallel to the longitudinal direction of the main body base 210 is the X axis
  • the axis parallel to the lateral direction of the main body base 210 is the Y axis
  • the axis parallel to the thickness (height) direction of the main body base 210 is Z.
  • an axis it will be used for explanation as appropriate.
  • a block-shaped fixing portion 211 is provided on the surface on one end side of the main body base portion 210, and a block-shaped support portion 212 is provided on the surface on the other end side.
  • the fixed portion 211 and the supporting portion 212 are separated along the X axis.
  • the main body base portion 210, the fixing portion 211 and the support portion 212 are integrally molded.
  • the support portion 212 is provided with a screw hole penetrating in a direction parallel to the X axis.
  • a rod 213 is inserted into this screw hole and screwed.
  • a handle 214 is provided at the rear end of the rod 213, and a block-shaped movable portion 215 is connected to the tip of the rod 213.
  • the movable portion 215 is movably supported along the X axis with respect to the main body base portion 210.
  • the operator arranges the work W between the fixed portion 211 and the movable portion 215, and turns the handle 214 so that the movable portion 215 approaches the fixed portion 211 to move the work W with the fixed portion 211. It can be sandwiched and fixed between the portion 215 and the portion 215.
  • the main body base portion 210, the fixed portion 211, the support portion 212, the rod 213, the handle 214, and the movable portion 215 form a vise.
  • a flange 216 is provided on one end surface of the main body base portion 210, and the mounting portion is detachably connected via the flange 216.
  • the mounting portion has a block-shaped mounting base portion 217.
  • a mounting tool 219 is supported on one side surface of the mounting base portion 217.
  • Flange 218 is provided on the other side surface of the mounting base portion 217 facing the side surface on which the mounting tool 219 is provided.
  • the mounting portion is connected to the main body base portion 210 by fastening the flange 218 to the flange 216 of the main body base portion 210 with bolts or the like.
  • the chuck member 35 to which the work replacement jig 20 is connected changes.
  • the versatility of the work replacement jig 20 can be improved.
  • the arm portion 23 has an L-shaped appearance.
  • a cut-off basket 25 is connected to the tip of the arm portion 23, and the rear end of the arm portion 23 is attached to the jig body 21.
  • the first arm portion 231 constituting the arm portion 23 is parallel to the Y axis
  • the second arm portion 236 constituting the arm portion 23 is parallel to the X axis
  • the tip of the arm portion 23 is cut off. Is attached to the jig body 21 so that the cut-off portion W2 cut off from the work W is arranged at a receptible position.
  • the cut-off basket 25 is arranged between the fixed portion 211 and the movable portion 215 of the jig main body 21 by the arm portion 23. ..
  • a gap can be provided between the jig main body 21 and the cutting cage 25 for passing the wire 37 of the wire electric discharge machine 30, and the cutting portion W2 cut off from the work W can be received.
  • the drop basket 25 can be arranged, the shape and dimensions of the arm portion 23 and the mounting position of the arm portion 23 with respect to the jig main body 21 can be arbitrarily determined. Therefore, the external shape of the arm portion 23 is not limited to the L-shape, and may be bent, curved, or any combination thereof.
  • the cut-off basket 25 is composed of a box body with an open upper surface.
  • the space for receiving the cut-off portion W2 is partitioned by a bottom plate and a side plate constituting the box body.
  • the cut-off basket 25 has an inner surface shape that matches the cut-off portion W2.
  • the cut-off basket 25 is the cut-off portion W2. It is composed of four side plates 252, 253, 254, 255 so that the space for receiving the above is rectangular in a plan view.
  • the bottom plate 251 is configured to be convexly curved along the X axis.
  • the shape of the cut-off basket 25 is not limited to the above as long as it matches the cut-off portion W2.
  • the bottom plate 251 is formed flat as shown in FIG.
  • the rod body having a triangular cross section is used as the work W
  • the bottom plate 251 is configured to project in a V shape as shown in FIG.
  • the bottom plate 251 of the cut-off basket 25 is provided with an opening 259 for draining the processing liquid filled in the processing tank 31 of the wire electric discharge machine 30.
  • the number of openings 259 is typically one, but a plurality of openings 259 may be provided, or the openings 259 may be reticulated.
  • the shape of the opening 259 is typically rectangular, but may be another shape such as a circle. Of course, when a cutting machine is used in which the cutting process is performed without submerging the work W inside the processing tank 31 filled with the processing liquid, the above opening 259 is not always necessary.
  • the side plate portion of the side plate on the side closer to the jig main body 21 is configured to be lower than the other side plate portions.
  • the side plate portion of the side plate on the side closer to the jig main body 21 is configured to be lower than the other side plate portions.
  • the side plate 252 is configured to be lower than the other side plates 253, 254 and 255.
  • the cut-off portion W2 cut off from the work W may not fall directly below. Therefore, it is very effective to partially lower the side plate so that the work W is brought as close as possible to the bottom plate 251 in order to reliably accommodate the cut-off portion W2 in the cut-off basket 25. Further, by raising the other side plate portion, even if the cut-off portion W2 cut off from the work W flies in all directions due to the reaction of the cutting process, the cut-off portion W2 falls outward from the cut-off basket 25. Can be avoided.
  • the cut-off basket 25 may have an inclined plate 257 that guides the cut-off portion W2 to the bottom plate 251.
  • the inclined plate 257 is arranged so as to be inclined from the edge of one side plate 252 on the side closer to the jig main body 21 toward the bottom plate 251 among the four side plates 252, 253, 254, 255. Since the cut-off portion W2 cut off from the work W can be slid down toward the bottom plate 251 along the inclined plate 257 at a gentle speed, the cut-off portion W2 is compared with the configuration without the inclined plate 257.
  • cut-off basket 25 falls directly to the outside of the cut-off basket 25 and that the cut-off portion W2 bounces on the bottom plate 251 and goes out to the outside of the cut-off basket 25. Further, since the cut-off portion W2 reaches the bottom plate 251 in an inclined posture along the inclined plate 257, a part such as a corner portion of the cut-off portion W2 may be engaged with the opening 259 opened in the bottom plate 251. The cut-off portion W2 can be more stably housed in the cut-off basket 25.
  • the overall height of the side plate may be lower than the thickness of the cut-off portion W2.
  • the cross-sectional shape of the cut-off portion W2 is circular as in the present embodiment, the cross-sectional shape of the cut-off basket 25 is V so that the cut-off portion W2 can easily roll along the side plate.
  • the side plate can be configured so as to spread from the bottom to the upper surface open portion, such as a character shape or a semicircular shape.
  • the cut-off basket 25 may be detachable from the arm portion 23.
  • the versatility of the work replacement jig 20 is improved. Can be made to.
  • the work replacement jig 20 can adjust the relative position of the cut-off basket 25 with respect to the jig main body 21.
  • a structure for realizing this a structure in which the mounting position of the arm portion 23 with respect to the jig main body 21 can be changed can be adopted.
  • the jig main body 21 has a plurality of screw holes 220 for mounting the arm portion 23 so that the mounting position of the arm portion 23 with respect to the jig main body 21 can be changed.
  • the plurality of screw holes 220 are provided on the back surface of the jig main body 21 in a dispersed manner along the X-axis and the Y-axis.
  • a plurality of through holes 240 are provided in the first arm portion 231 on the rear end side of the arm portion 23. The operator aligns the screw holes 220 selected from the plurality of screw holes 220 provided in the jig main body 21 with the through holes 240 selected from the plurality of through holes 240 provided in the arm portion 23.
  • the arm portion 23 can be attached to the jig body 21.
  • the position of the cutting cage 25 with respect to the jig body 21 can be adjusted in the X-axis direction and the Y-axis direction.
  • the X-axis direction corresponds to the direction in which the cut-off cage 25 approaches / separates from the jig body 21
  • the Y-axis direction corresponds to the direction in which the cut-off cage 25 approaches / separates from the jig body 21.
  • a plurality of mounting structures are provided in at least one of the jig body 21 and the arm portion 23.
  • a hole may be provided.
  • a spacer having a thickness corresponding to the adjustment width between the jig main body 21 and the arm portion 23.
  • the member 70 may be interposed.
  • a structure may be provided in which the position of the cut-off basket 25 with respect to the jig main body 21 is adjusted in the Z-axis direction by changing the mounting position of the arm portion 23 with respect to the jig main body 21. ..
  • the arm portion 23 is composed of three arm portions parallel to each of the three orthogonal axes, and a plurality of through holes are provided in the arm portion along the Z axis. Is provided.
  • the attachment structure is not limited to screws, and any structure such as a bolt-nut structure or a fitting structure can be adopted.
  • the arm portion 23 may have a structure for adjusting the position of the cut-off basket 25 with respect to the jig main body 21.
  • each of the first and second arm portions 231 and 236 constituting the arm portion 23 has an expansion / contraction mechanism.
  • the expansion / contraction mechanism any mechanism such as a mechanism using a slide bar, a ball screw mechanism, and a slide rail mechanism can be used.
  • a slide rail mechanism will be described as an example of the expansion / contraction mechanism.
  • the first arm portion 231 has a first fixed rail 232 attached to the jig main body 21 at a rear end portion and a first moving rail 233 slidably supported with respect to the first fixed rail 232.
  • the second arm portion 236 is slidably supported by the second fixed rail 237 connected to the first moving rail 233 and the second fixed rail 237, and a cut-off basket 25 is provided at the tip thereof. It has a moving rail 238.
  • the position of the cut-off basket 25 is adjusted in the Y-axis direction with respect to the jig main body 21 by changing the expansion / contraction length of the first arm portion 231 arranged along the Y-axis. Can be done.
  • the position of the cut-off basket 25 with respect to the jig main body 21 can be adjusted in the X-axis direction.
  • the arm portion 23 When the arm portion 23 itself has a structure capable of adjusting the position of the cut-off basket 25 with respect to the jig main body 21, the arm portion 23 is configured in an L shape from the viewpoint of ease of adjustment, and the arm portion 23 is formed. It is advantageous to attach the first arm portion 231 to the jig body 21 so as to be parallel to the Y axis and the second arm portion 236 to be parallel to the X axis.
  • the arm portion 23 is composed of three arm portions arranged along three orthogonal axes, and is formed along the Z-axis.
  • the arm portion arranged in the above direction may be expanded and contracted.
  • the attachment structure of the arm portion 23 to the jig main body 21 described with reference to FIGS. 12 and 13 and the telescopic structure of the arm portions 231 and 236 constituting the arm portion 23 described with reference to FIG. 14 may be combined. Thereby, by interposing the spacer member 70 between the arm portion 23 illustrated in FIG. 14 and the jig main body 21, the position of the cut-off basket 25 with respect to the jig main body 21 can be adjusted in the Z-axis direction. ..
  • the arm portion 23 may be composed of a plurality of types of small parts having a connecting structure.
  • the shape and dimensions of the arm portion 23 can be arbitrarily changed by changing the combination of the parts constituting the arm portion 23 and the number of parts, whereby the relative position of the cut-off basket 25 with respect to the jig body 21 can be changed. Can be adjusted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Robotics (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Feeding Of Workpieces (AREA)
  • Sawing (AREA)
PCT/JP2021/015599 2020-04-20 2021-04-15 ワーク交換治具及び切断加工システム Ceased WO2021215346A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE112021002428.0T DE112021002428T5 (de) 2020-04-20 2021-04-15 Werkstück-Wechselspannvorrichtung und Schneidesystem
CN202180029628.2A CN115443201B (zh) 2020-04-20 2021-04-15 工件更换夹具以及切割加工系统
US17/918,803 US20230141769A1 (en) 2020-04-20 2021-04-15 Workpiece switching jig and cutting system
JP2022517009A JP7457106B2 (ja) 2020-04-20 2021-04-15 ワーク交換治具及び切断加工システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-074959 2020-04-20
JP2020074959 2020-04-20

Publications (1)

Publication Number Publication Date
WO2021215346A1 true WO2021215346A1 (ja) 2021-10-28

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ID=78269303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/015599 Ceased WO2021215346A1 (ja) 2020-04-20 2021-04-15 ワーク交換治具及び切断加工システム

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Country Link
US (1) US20230141769A1 (https=)
JP (1) JP7457106B2 (https=)
CN (1) CN115443201B (https=)
DE (1) DE112021002428T5 (https=)
WO (1) WO2021215346A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270932U (https=) * 1988-11-21 1990-05-30
JPH0467932U (https=) * 1990-10-16 1992-06-16
JP2002263958A (ja) * 2001-03-09 2002-09-17 Fanuc Ltd ワイヤ放電加工機
JP2017080839A (ja) * 2015-10-27 2017-05-18 株式会社アマダホールディングス 帯鋸盤

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518155A (en) * 1981-08-11 1985-05-21 Imea Sa Fixing device of workpieces for wire spark erosion machines
US5207417A (en) * 1992-04-01 1993-05-04 Xerox Corporation Active copy sheet catch and stacking device
JP2720729B2 (ja) * 1992-10-23 1998-03-04 三菱電機株式会社 ワーク切落し部回収装置
JP3590576B2 (ja) * 2000-10-10 2004-11-17 津根精機株式会社 切断及び二次加工設備
CN2683310Y (zh) * 2004-03-26 2005-03-09 比亚迪股份有限公司 线切割机用夹具
US7140409B2 (en) * 2004-11-01 2006-11-28 Matthew Leberfinger Portable pipe cutting apparatus
US8689778B1 (en) * 2011-04-13 2014-04-08 Kolmar Investments, LLC. Masonry cutting device
EP3502611B1 (en) * 2017-12-21 2023-08-16 Hexagon Technology Center GmbH Machine geometry monitoring
CN208556771U (zh) * 2018-07-20 2019-03-01 南京全丰汽车部件有限公司 一种切割用排气管的固定工装

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270932U (https=) * 1988-11-21 1990-05-30
JPH0467932U (https=) * 1990-10-16 1992-06-16
JP2002263958A (ja) * 2001-03-09 2002-09-17 Fanuc Ltd ワイヤ放電加工機
JP2017080839A (ja) * 2015-10-27 2017-05-18 株式会社アマダホールディングス 帯鋸盤

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CN115443201B (zh) 2025-09-12
CN115443201A (zh) 2022-12-06
JP7457106B2 (ja) 2024-03-27
DE112021002428T5 (de) 2023-02-23
US20230141769A1 (en) 2023-05-11
JPWO2021215346A1 (https=) 2021-10-28

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