WO2015125259A1 - Appareil d'usinage à décharge électrique à fil - Google Patents

Appareil d'usinage à décharge électrique à fil Download PDF

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Publication number
WO2015125259A1
WO2015125259A1 PCT/JP2014/054094 JP2014054094W WO2015125259A1 WO 2015125259 A1 WO2015125259 A1 WO 2015125259A1 JP 2014054094 W JP2014054094 W JP 2014054094W WO 2015125259 A1 WO2015125259 A1 WO 2015125259A1
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WO
WIPO (PCT)
Prior art keywords
wire electrode
flow rate
wire
suction
guide
Prior art date
Application number
PCT/JP2014/054094
Other languages
English (en)
Japanese (ja)
Inventor
大友　陽一
尚志 柿花
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2014/054094 priority Critical patent/WO2015125259A1/fr
Priority to JP2014527423A priority patent/JP5622981B1/ja
Priority to CN201480075886.4A priority patent/CN106029275B/zh
Priority to DE112014006130.1T priority patent/DE112014006130B4/de
Publication of WO2015125259A1 publication Critical patent/WO2015125259A1/fr

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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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode
    • B23H7/108—Used wire disposal devices
    • 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
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode
    • B23H7/102—Automatic wire threading
    • 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
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode

Definitions

  • the present invention relates to a wire electric discharge machining apparatus, and more particularly to wire electrode connection.
  • a wire electrode guide part that guides a wire electrode that has passed through a lower nozzle in a horizontal direction along a guide roller with a pressure fluid, a first fluid ejection part that removes a machining tip attached to the wire electrode, and a first fluid
  • a second fluid ejection portion that applies thrust to the wire electrode that has passed through the ejection portion, a guide pipe that guides the jet and wire electrode from the second fluid ejection portion, and a jet and wire electrode that has passed through the guide pipe
  • a wire electrode transport device using a pressure fluid of a wire electric discharge machining apparatus that includes a fluid recovery unit that separates a jet from the fluid discharge device is disclosed (for example, see Patent Document 1).
  • the present invention has been made in view of the above, and does not wet the wire collection roller of the wire electrode collection unit when connecting an ultrafine wire electrode, and the ultrafine wire electrode is sucked into the suction unit. It aims at obtaining the wire electric discharge machining apparatus which is not rare.
  • the present invention provides a lower die for positioning a wire electrode during electric discharge machining, a lower die disposed below the lower die, and in contact with the wire electrode.
  • a lower wire electrode guide section having a lower power supply for supplying current, a wire recovery roller for holding and pulling the wire electrode, and a pipe end for separating the wire electrode and the processing liquid; and a wire electrode recovery section having An aspirator that is disposed between the lower wire electrode guide part and the wire electrode recovery part and ejects a processing liquid that sends the wire electrode to the wire electrode recovery part, and a lower guide pipe that guides the wire electrode to the wire electrode recovery part
  • a lower wire electrode feed section having a recovery flow rate sufficient to transport the wire electrode in the lower guide pipe to the aspirator.
  • a liquid pump for feeding, a suction device for sucking a working fluid corresponding to the recovered flow rate from the pipe end, and a determination unit for determining that the tip of the wire electrode has reached before the pipe end during wire electrode connection work Based on the determination of the determination unit, the discharge flow rate of the liquid pump and the suction flow rate of the suction device are changed from the recovery flow rate and the suction flow rate sufficient to transport the wire electrode in the lower guide pipe.
  • an NC device having a recovery flow rate that is not sucked into the suction portion of the pipe end and a control unit that lowers the suction flow rate.
  • the wire electrical discharge machining apparatus does not wet the wire recovery roller of the wire electrode recovery unit and connects the ultrafine wire electrode, and the ultrafine wire electrode may be sucked into the suction unit. No effect.
  • FIG. 1 is a schematic diagram showing a wire electrode traveling system of an embodiment of a wire electric discharge machining apparatus according to the present invention.
  • FIG. 2 is a longitudinal sectional view of the upper wire electrode guide portion of the embodiment.
  • FIG. 3 is an enlarged vertical cross-sectional view of the upper wire electrode guide portion of the embodiment in a phase different from that of FIG.
  • FIG. 4 is a cross-sectional view showing the lower wire electrode guide portion and the lower wire electrode feed portion of the embodiment.
  • FIG. 5 is a cross-sectional view showing a lower wire electrode guide portion and a lower wire electrode feed portion according to the embodiment, which is 90 ° out of phase with FIG. 4.
  • FIG. 6 is a side view showing a pipe end of the wire electrode recovery portion of the embodiment.
  • FIG. 7 is a cross-sectional view taken along line BB in FIG.
  • FIG. 8 is a wire electrode feed time chart of the wire electrode recovery part of the embodiment.
  • FIG. 1 is a schematic view showing a wire electrode traveling system of an embodiment of a wire electric discharge machining apparatus according to the present invention
  • FIG. 2 is a longitudinal sectional view of an upper wire electrode guide portion of the embodiment
  • FIG. 3 is an enlarged vertical sectional view of the upper wire electrode guide portion of the embodiment different from that of FIG. 2
  • FIG. 4 shows the lower wire electrode guide portion and the lower wire electrode feed portion of the embodiment
  • FIG. 5 is a cross-sectional view showing a lower wire electrode guide portion and a lower wire electrode feed portion of the embodiment, and is a cross-sectional view different from that in FIG. 4 by 90 °
  • FIG. 6 is a wire electrode recovery portion of the embodiment
  • 7 is a side view showing the pipe end of the section, a cross-sectional view taken along line BB of FIGS. 7 and 6, and
  • FIG. 8 is a wire electrode feed time chart of the wire electrode recovery section of the embodiment.
  • the wire electric discharge machining apparatus 100 of the embodiment includes a wire electrode holding unit 10, an upper wire electrode feeding unit 30, an upper wire electrode guide unit 40, a lower wire electrode guide unit 60, and a lower part.
  • a wire electrode feeding unit 70, a wire electrode collecting unit 80, and an NC device 90 are provided.
  • the wire electrode holding unit 10 includes a bobbin 11 around which the wire electrode 1 is wound, and pulleys 12a, 12b, and 12c that change the feeding direction of the wire electrode 1.
  • the upper wire electrode feeding section 30 guides the wire electrode 1 to the lower upper wire electrode guide section 40, the feed roller 21 that feeds the wire electrode 1, pinch rollers 22 a and 22 b that wind the wire electrode 1 around the feed roller 21, and the wire electrode 1.
  • An upper guide pipe 31 and a guide pipe head 32 for sending air downward into the upper guide pipe 31 are provided.
  • the upper wire electrode guide part 40 is in contact with the wire electrode 1 and supplies an electric current to the wire electrode 1, and an upper side disposed above the upper supply electron 42.
  • the upper guide 44 which is composed of a guide 44a and a lower guide 44b arranged on the lower side, guides the wire electrode 1 so as to contact the upper power supply 42, and is arranged on the upper side of the upper guide 44a, and the lower end of the upper guide pipe 31.
  • the wire track 49 into which the portion is inserted and the lower guide 44b are disposed below, and the wire electrode 1 is sent downward and the tip thereof is sent to the lower wire electrode guide portion 60 through the processing start hole of the workpiece 51.
  • a cutter or a cutting unit for cutting the wire electrode 1 with Joule heat due to electric current is disposed above the upper wire electrode guide portion 40.
  • the cutting unit is movable in the lateral direction.
  • the upper guide pipe 31 is raised to create a gap between the lower end of the upper guide pipe 31 and the wire track 49, and the cutting unit is moved into the gap to cut the wire electrode 1.
  • the cutting unit is moved laterally, the upper guide pipe 31 is lowered, and the lower end portion is inserted into the wire track 49.
  • the lower wire electrode guide part 60 is disposed below the upper wire electrode guide part 40, and a lower machining liquid nozzle 66 that sprays a machining liquid onto the workpiece 51 during electric discharge machining, A lower die 63 disposed in the lower machining liquid nozzle 66 for positioning the wire electrode 1 during electric discharge machining, and a lower portion disposed below the lower die 63 for contacting the wire electrode 1 and supplying current to the wire electrode 1
  • the lower guide 64 includes a power supply 62, an upper guide 64 b disposed on the upper side of the lower power supply 62, and a lower guide 64 a disposed on the lower side, and guides the wire electrode 1 so as to contact the lower power supply 62. And a lower guide block 61 for holding them.
  • the lower wire electrode feeding section 70 has a lower roller 72 that changes the feeding direction of the wire electrode 1 and a negative pressure for feeding the wire electrode 1 from the lower die 63 to the lower guide 64.
  • An aspirator 73 that ejects a machining fluid that is generated and sends the wire electrode 1 to the wire electrode collection unit 80, a lower guide pipe 74 that guides the wire electrode 1 to the wire electrode collection unit 80, and a lower roller block 71 that holds them. And have.
  • the wire electrode recovery unit 80 includes wire recovery rollers 81 a and 81 b that hold and pull the wire electrode 1, a pipe end 82 that separates the wire electrode 1 and the processing liquid, Have.
  • the wire electric discharge machining apparatus 100 generates a discharge by applying a pulse voltage between the wire electrode 1 and the workpiece 51 while running the wire electrode 1 in the wire electrode running system.
  • the upper wire electrode guide part 40 and the lower wire electrode guide part 60 are moved relative to each other in a sawtooth shape to process the workpiece 51 into a desired shape.
  • the upper guide block 41 of the upper wire electrode guide part 40 is formed with a suction passage 41a communicating with the lower side of the lower guide 44b.
  • a suction device 48 is connected to the suction passage 41a. The suction device 48 sucks air in the wire electrode passage.
  • the upper guide block 41 of the upper wire electrode guide section 40 is provided with a nozzle passage 98 connected to the jet nozzle 45, and the nozzle passage 98 is connected to the jet nozzle via a switching valve 97.
  • a liquid pump 96 for ejecting the machining fluid from 45 is connected.
  • the liquid pump 96 sucks the processing liquid from the processing liquid tank 99.
  • a suction device 95 that sucks air in the wire electrode passage from the lower side of the upper die 43 is connected to the nozzle passage 98 via a switching valve 97.
  • a sub guide 47a is disposed as a member that fills the gap between them.
  • an adapter 47b is disposed as a member that fills the gap between them. Since the member for filling the gap is arranged, when the air in the wire electrode passage is sucked by the suction devices 48 and 95, the air outside the passage is sucked and the suction efficiency is not lowered.
  • the suction devices 48 and 95, the liquid pump 96, the switching valve 97, a pulse motor (not shown) that rotates the feed roller 21, and an air pump (not shown) that sends air to the guide pipe head 32 are controlled by the NC device 90 of the wire electric discharge machining apparatus 100.
  • the control unit 92 starts a pulse motor (not shown) that rotates the feed roller 21, an air pump (not shown) that sends air to the guide pipe head 32, and an aspirator 48.
  • the tip of the wire electrode 1 located at the lower part of the upper guide pipe 31 at the start of connection is sent to the feed roller 21 (feed speed at the time of connection: 5000 mm / min) and approaches the upper guide 44a.
  • the determination unit 91 of the NC device 90 determines the position of the tip end portion of the wire electrode 1 from the rotation amount of the feed roller 21, and when the tip end portion of the wire electrode 1 passes through the upper guide 44a, the control unit 92 is instructed and suctioned.
  • the suction of the device 48 is stopped, the suction by the suction device 95 is started, and the air in the wire electrode passage is sucked from the lower side of the upper die 43. At this time, the rotation of the feed roller 21 is slowed or stopped.
  • the suction by the suction device 95 is stopped, the switching valve 97 is switched, the liquid pump 96 is connected to the nozzle passage 98, and the processing liquid to the nozzle passage 98 is supplied.
  • the feed roller 21 is rotated and the wire electrode 1 is sent out.
  • the liquid pump 96 sucks the processing liquid from the processing liquid tank 99.
  • the machining liquid ejected from the jet nozzle 45 is ejected downward from the upper machining liquid nozzle 46, sucks the wire electrode 1 and sends it downward, and the lower end of the wire electrode guide passes through the machining start hole of the workpiece 51. Send to part 60.
  • a sensor (not shown) detects this and sends a detection signal to the determination unit 91 of the NC device 90.
  • the determination unit 91 determines the position of the tip of the wire electrode 1 and instructs the control unit 92 to stop the supply of the processing liquid to the jet nozzle 45 by the liquid pump 96.
  • the NC device 90 is configured to determine the arrival position of the tip of the wire electrode 1 during the wire electrode 1 connection work, and the liquid pump based on the arrival position determined by the determination unit 91.
  • a control unit 92 for controlling the discharge flow rate of 76 and the suction flow rate of the aspirator 86.
  • the determination unit 91 determines the start of connection, and the control unit 92 controls the liquid pump 76 to control the extremely fine wire electrode 1. Is collected at a flow rate sufficient to be conveyed in the lower guide pipe 74 (for example, 6 l / min) and is sent into the lower guide pipe 74 through the aspirator 73. At the same time, the control unit 92 controls the aspirator 86 to obtain a suction flow rate (for example, a flow rate of 5 l / min obtained by subtracting a fall flow rate of 1 l / min falling in the drain pipe 85 from the recovery flow rate of 6 l / min). Inhale. Since the collection flow rate and the suction flow rate are balanced, the machining liquid does not pass through the pipe end 82 and wet the wire collection rollers 81a and 81b.
  • a suction flow rate for example, a flow rate of 5 l / min obtained by subtracting a fall flow rate of 1 l / min falling in the drain pipe 85 from the recovery flow rate of
  • a sensor (not shown) detects this and sends a detection signal to the determination section 91 of the NC device 90.
  • the NC device 90 counts the distance until the tip of the wire electrode 1 reaches before the pipe end 82 by the rotation detection unit of the feed roller 21 from the rotation number and the outer diameter of the rotation detection unit, and the determination unit 91 reaches If it judges, the control part 92 will control the liquid pump 76, and will reduce a collection
  • control unit 92 controls the suction device 86 to adjust the suction flow rate, and the flow rate at which the fine wire electrode 1 is not sucked into the suction unit 82a (see FIG. 7) (for example, from the recovered flow rate 3 l / min to the drain pipe 85 Is reduced to a flow rate of 2 l / min (subtracting the drop flow rate of 1 l / min). Even at this flow rate, the recovery flow rate and the suction flow rate are balanced, so that the machining liquid does not pass through the pipe end 82 to wet the wire recovery rollers 81a and 81b.
  • the recovery flow rate is 4 l / min or more, the wire electrode 1 is sucked to the suction portion 82a of the pipe end 82 and protrudes out of the path. Therefore, the recovery flow rate is set to 3 l / min with a margin.
  • the wire electrode feed speed of the wire collection rollers 81a and 81b is faster than the feed speed of the feed roller 21. Is pulled to increase the rotation speed.
  • the determination unit 91 of the NC device 90 determines this, issues a carry-out completion command, starts a timer, and after a certain amount of play time has elapsed, cancels the connection command and the carry-out completion command.
  • the aspirator 86 is stopped.
  • the wire collection rollers 81a and 81b of the wire electrode collection unit 80 are not wetted when the ultrafine wire electrode 1 is connected, and the ultrafine wire electrode 1 is connected.
  • the wire electrode 1 is not sucked into the suction part 82a.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention vise à obtenir un appareil d'usinage à décharge électrique à fil qui peut empêcher un rouleau de collecte de fil d'une partie de collecte d'électrode à fil d'être mouillé et une électrode à fil extra-fine d'être aspirée dans une partie d'aspiration au moment de la connexion de l'électrode à fil extra-fine. A cet effet, la présente invention porte sur un appareil d'usinage à décharge électrique à fil, lequel appareil est configuré de façon à comporter : une pompe à liquide qui alimente un aspirateur en un fluide d'usinage à un débit d'écoulement de collecte suffisant pour transporter l'électrode à fil dans un tuyau de guidage inférieur ; un dispositif d'aspiration qui aspire le fluide d'usinage en correspondance avec le débit d'écoulement de collecte à partir d'une extrémité de tuyau ; et un dispositif de commande numérique comprenant une unité de détermination qui détermine que l'extrémité avant de l'électrode à fil est arrivée à l'avant de l'extrémité de tuyau au moment du travail de connexion de l'électrode à fil, et une unité de commande qui, sur la base de la détermination par l'unité de détermination, diminue le débit d'écoulement de refoulement de la pompe de liquide et le débit d'écoulement d'aspiration du dispositif d'aspiration à partir d'un débit d'écoulement de collecte et d'un débit d'écoulement d'aspiration qui sont suffisants pour transporter l'électrode à fil dans le tuyau de guidage inférieur jusqu'à un débit d'écoulement de collecte et un débit d'écoulement d'aspiration auxquels l'électrode à fil n'est pas aspirée dans la partie d'aspiration de l'extrémité de tuyau.
PCT/JP2014/054094 2014-02-20 2014-02-20 Appareil d'usinage à décharge électrique à fil WO2015125259A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2014/054094 WO2015125259A1 (fr) 2014-02-20 2014-02-20 Appareil d'usinage à décharge électrique à fil
JP2014527423A JP5622981B1 (ja) 2014-02-20 2014-02-20 ワイヤ放電加工装置
CN201480075886.4A CN106029275B (zh) 2014-02-20 2014-02-20 线放电加工装置
DE112014006130.1T DE112014006130B4 (de) 2014-02-20 2014-02-20 Drahterodiervorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/054094 WO2015125259A1 (fr) 2014-02-20 2014-02-20 Appareil d'usinage à décharge électrique à fil

Publications (1)

Publication Number Publication Date
WO2015125259A1 true WO2015125259A1 (fr) 2015-08-27

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PCT/JP2014/054094 WO2015125259A1 (fr) 2014-02-20 2014-02-20 Appareil d'usinage à décharge électrique à fil

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Country Link
JP (1) JP5622981B1 (fr)
CN (1) CN106029275B (fr)
DE (1) DE112014006130B4 (fr)
WO (1) WO2015125259A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3505285A1 (fr) * 2017-12-28 2019-07-03 Fanuc Corporation Machine à décharge électrique à fil et procédé d'alimentation automatique de fil d'une machine à décharge électrique à fil
WO2021240816A1 (fr) * 2020-05-29 2021-12-02 三菱電機株式会社 Dispositif de récupération de fil-électrode et dispositif d'usinage par décharge électrique defil
WO2022176639A1 (fr) * 2021-02-17 2022-08-25 ファナック株式会社 Mécanisme de drainage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127527B (zh) * 2015-09-15 2017-07-11 中国工程物理研究院激光聚变研究中心 连续电解腐蚀钨丝防抖动被动放丝装置
JP6310039B1 (ja) * 2016-11-08 2018-04-11 ファナック株式会社 ワイヤ放電加工機および自動結線方法
DE102017118505B4 (de) * 2017-08-14 2019-09-12 PHOENIX FEINBAU GmbH & Co. KG Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement
JP6680407B1 (ja) * 2019-02-25 2020-04-15 三菱電機株式会社 ワイヤ放電加工装置のワイヤ自動結線装置
KR102516531B1 (ko) * 2019-03-29 2023-04-03 세이부덴키 가부시키가이샤 와이어 전극 송출 장치 및 와이어 전극 송출 방법

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JPS5914428A (ja) * 1982-07-08 1984-01-25 Makino Milling Mach Co Ltd ワイヤカツト放電加工機のワイヤ電極巻上げ誘導装置
JPS63312025A (ja) * 1987-06-11 1988-12-20 Mitsubishi Electric Corp ワイヤ放電加工装置のワイヤ電極回収機構
JPH04105822A (ja) * 1990-08-24 1992-04-07 Mitsubishi Electric Corp ワイヤ電極送出方法
JP5225516B1 (ja) * 2011-10-13 2013-07-03 三菱電機株式会社 ワイヤ電極送り装置およびワイヤ放電加工機

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DE3408985C2 (de) 1983-03-12 1994-08-04 Inoue Japax Res Spülvorrichtung für eine funkenerosive Drahtschneidemaschine
JP3243570B2 (ja) 1991-09-30 2002-01-07 株式会社 アマダマシニックス ワイヤ放電加工機のワイヤ電極搬送装置
WO2000023220A1 (fr) * 1998-10-16 2000-04-27 Mitsubishi Denki Kabushiki Kaisha Ensemble d'usinage par etincelage a fils

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Publication number Priority date Publication date Assignee Title
JPS5914428A (ja) * 1982-07-08 1984-01-25 Makino Milling Mach Co Ltd ワイヤカツト放電加工機のワイヤ電極巻上げ誘導装置
JPS63312025A (ja) * 1987-06-11 1988-12-20 Mitsubishi Electric Corp ワイヤ放電加工装置のワイヤ電極回収機構
JPH04105822A (ja) * 1990-08-24 1992-04-07 Mitsubishi Electric Corp ワイヤ電極送出方法
JP5225516B1 (ja) * 2011-10-13 2013-07-03 三菱電機株式会社 ワイヤ電極送り装置およびワイヤ放電加工機

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3505285A1 (fr) * 2017-12-28 2019-07-03 Fanuc Corporation Machine à décharge électrique à fil et procédé d'alimentation automatique de fil d'une machine à décharge électrique à fil
TWI706819B (zh) * 2017-12-28 2020-10-11 日商發那科股份有限公司 金屬線放電加工機及金屬線放電加工機之自動接線方法
US10974331B2 (en) 2017-12-28 2021-04-13 Fanuc Corporation Wire electrical discharge machine and auto wire feeding method of wire electrical discharge machine
WO2021240816A1 (fr) * 2020-05-29 2021-12-02 三菱電機株式会社 Dispositif de récupération de fil-électrode et dispositif d'usinage par décharge électrique defil
WO2022176639A1 (fr) * 2021-02-17 2022-08-25 ファナック株式会社 Mécanisme de drainage

Also Published As

Publication number Publication date
DE112014006130B4 (de) 2020-06-10
JP5622981B1 (ja) 2014-11-12
CN106029275B (zh) 2017-10-13
DE112014006130T5 (de) 2016-09-22
CN106029275A (zh) 2016-10-12
JPWO2015125259A1 (ja) 2017-03-30

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