JPS56139836A - Electrospark machining apparatus - Google Patents

Electrospark machining apparatus

Info

Publication number
JPS56139836A
JPS56139836A JP4135780A JP4135780A JPS56139836A JP S56139836 A JPS56139836 A JP S56139836A JP 4135780 A JP4135780 A JP 4135780A JP 4135780 A JP4135780 A JP 4135780A JP S56139836 A JPS56139836 A JP S56139836A
Authority
JP
Japan
Prior art keywords
electrode
workpiece
feed motor
high speed
resistor
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.)
Granted
Application number
JP4135780A
Other languages
Japanese (ja)
Other versions
JPS6158255B2 (en
Inventor
Yutaka Tanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4135780A priority Critical patent/JPS56139836A/en
Publication of JPS56139836A publication Critical patent/JPS56139836A/en
Publication of JPS6158255B2 publication Critical patent/JPS6158255B2/ja
Granted legal-status Critical Current

Links

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
    • B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/16—Electric circuits specially adapted therefor, e.g. power supply for preventing short circuits or other abnormal discharges by altering machining parameters using adaptive control

Landscapes

  • 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

PURPOSE:To enable an electrode to be moved at a first at high speed thereby to reduce a time required therefore unitl the completion of positioning of the electrode by detecting approaching of the electrode to a workpiece from a discharging current so as to cause the speed of a feed motor to be dropped before the electrode is brought into contact with the workpiece. CONSTITUTION:When an electrode 1 comes nearer to a workpiece 2 than a predetermined distance during movement of a work table 8 at a high speed by a feed motor 6, a corona discharging is caused to appear between the electrode 1 and the workpiece 2. Consequently, a minute current is caused to flow through a resistor 12 so that a voltage appears across the resistor 12. This voltage is input to a drive controlling circuit 10 through a corona discharging detecting circuit 13. Upon reception of the signal, the drive controlling circuit 10 stops the feed motor 6. Thus, the feed motor 6 can be driven at first at a high speed, thereby enabling reduction of a time required therefor until the completion of the positioning of the electrode.
JP4135780A 1980-03-31 1980-03-31 Electrospark machining apparatus Granted JPS56139836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4135780A JPS56139836A (en) 1980-03-31 1980-03-31 Electrospark machining apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4135780A JPS56139836A (en) 1980-03-31 1980-03-31 Electrospark machining apparatus

Publications (2)

Publication Number Publication Date
JPS56139836A true JPS56139836A (en) 1981-10-31
JPS6158255B2 JPS6158255B2 (en) 1986-12-10

Family

ID=12606237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4135780A Granted JPS56139836A (en) 1980-03-31 1980-03-31 Electrospark machining apparatus

Country Status (1)

Country Link
JP (1) JPS56139836A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07266142A (en) * 1994-03-29 1995-10-17 Sakae Denshi Kogyo Kk Small-diameter hole machining device and small-diameter hole machining method using the same
JPH07266141A (en) * 1994-03-29 1995-10-17 Sakae Denshi Kogyo Kk Small-diameter hole machining method for substrate material and device therefor
US7113884B1 (en) 1998-05-08 2006-09-26 Mitsubishi Denki Kabushiki Kaisha Positioning apparatus for an electrical discharge machine and a method therefor
JP2018030189A (en) * 2016-08-24 2018-03-01 ファナック株式会社 Wire electric discharging machine and measuring method
CN114101823A (en) * 2021-05-18 2022-03-01 徕通科技股份有限公司 Quick edge searching method for wire cutting machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531567A (en) * 1978-08-28 1980-03-05 Inoue Japax Res Inc Spark machining device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531567A (en) * 1978-08-28 1980-03-05 Inoue Japax Res Inc Spark machining device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07266142A (en) * 1994-03-29 1995-10-17 Sakae Denshi Kogyo Kk Small-diameter hole machining device and small-diameter hole machining method using the same
JPH07266141A (en) * 1994-03-29 1995-10-17 Sakae Denshi Kogyo Kk Small-diameter hole machining method for substrate material and device therefor
US7113884B1 (en) 1998-05-08 2006-09-26 Mitsubishi Denki Kabushiki Kaisha Positioning apparatus for an electrical discharge machine and a method therefor
JP2018030189A (en) * 2016-08-24 2018-03-01 ファナック株式会社 Wire electric discharging machine and measuring method
US10315261B2 (en) 2016-08-24 2019-06-11 Fanuc Corporation Wire electrical discharge machine and measuring method
CN114101823A (en) * 2021-05-18 2022-03-01 徕通科技股份有限公司 Quick edge searching method for wire cutting machine

Also Published As

Publication number Publication date
JPS6158255B2 (en) 1986-12-10

Similar Documents

Publication Publication Date Title
JPS57144638A (en) Protective device for automatic tool changing device
JPS5715634A (en) Wire-cut electric discharge machine
JPS57132927A (en) Spark machining device
JPS56139836A (en) Electrospark machining apparatus
DE3064654D1 (en) Method of automatically bringing the voltage of an electrofilter up to the discharge limit and apparatus for carrying out the method
GB1427533A (en) Method and a device for controlling the positional adjustment of tool-forming electrodes for electroeroding conducting work pieces
ES445385A1 (en) Servo feed system for a wire electrode type electrical discharge machining apparatus
GB992894A (en) Method of controlling the feed in electro-erosive machining
JPS54156295A (en) Wire-cut electric discharge machining device
US3401102A (en) Electrolytic shaping apparatus and feed rate control therefor, based on field changes across the gap caused by a moving electrode
JPS56139835A (en) Electrospark machining apparatus
JPS54113583A (en) Blade damage detecting method of rotary blade machine tool and means therefor
JPS5565033A (en) Wire cut electrical discharge machining apparatus
JPS5760567A (en) Player
JPS5930620A (en) Wire-cut electric discharge machining apparatus
JPS57172705A (en) Solenoid drive circuit
JPS56107842A (en) Method and apparatus for controlling working clearance
JPS51118195A (en) Device of discharge processing
JPS5674083A (en) Driving circuit for gate of gate turn-off thyristor
US4475025A (en) Cycle timer circuit for electrical discharge machining
JPS5621932A (en) Wiper controller
JPS5479896A (en) Wire-cut electrical discharge machine
JPS5669040A (en) Electric discharge electrode feeding control device
JPS51115398A (en) Method and apparatus for moving electric discharge machining electrode for cutting impeller
JPS57138540A (en) Electric spark machining device