JPS563143A - Power source device for wirecut type electrospark machining - Google Patents

Power source device for wirecut type electrospark machining

Info

Publication number
JPS563143A
JPS563143A JP7768679A JP7768679A JPS563143A JP S563143 A JPS563143 A JP S563143A JP 7768679 A JP7768679 A JP 7768679A JP 7768679 A JP7768679 A JP 7768679A JP S563143 A JPS563143 A JP S563143A
Authority
JP
Japan
Prior art keywords
voltage
capacitor
interelectrode
aperture
electrode
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
JP7768679A
Other languages
Japanese (ja)
Other versions
JPS6052891B2 (en
Inventor
Tetsuro Ito
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 JP7768679A priority Critical patent/JPS6052891B2/en
Publication of JPS563143A publication Critical patent/JPS563143A/en
Publication of JPS6052891B2 publication Critical patent/JPS6052891B2/en
Expired 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
    • B23H7/02—Wire-cutting
    • B23H7/04—Apparatus for supplying current to working gap; Electric circuits specially adapted therefor

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 prevent the exhaustion of wire at a wire electrode by a method wherein the voltage controlling an interelectrode aperture is separated from that at the time of discharge and the polarity of the voltage impressed on the interelectrode is made to be the reverse polarity, thus the electrolytic action being made to act only on the side of an electrode. CONSTITUTION:To a wire electrode 2 and an article 1 to be machined is connected a capacitor discharge circuit composed of a DC power source Eo, a resister Ro and a capacitor Co, whereby the length of an inter-electrode aperture is detected. The voltage Vg of the capacitor Co has a waveform of strong oscillation, and a discharge frequency is high and an average voltage is low when the interelectrode aperture is narrow. Meanwhile, a difference amplification circuit 21 is composed of an operation amplifier 22 and resisters R1-R4, detects the voltage Vg of the capacitor Co, and impresses the detected value on comparators 23 and 24, while detecting the difference between the servo and the standard voltage Vr, making this a digital value by means of an A/D converter 25 and performing a feeding control for a table by an N/C control device 14.
JP7768679A 1979-06-20 1979-06-20 Power supply device for wire cut electrical discharge machining Expired JPS6052891B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7768679A JPS6052891B2 (en) 1979-06-20 1979-06-20 Power supply device for wire cut electrical discharge machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7768679A JPS6052891B2 (en) 1979-06-20 1979-06-20 Power supply device for wire cut electrical discharge machining

Publications (2)

Publication Number Publication Date
JPS563143A true JPS563143A (en) 1981-01-13
JPS6052891B2 JPS6052891B2 (en) 1985-11-21

Family

ID=13640771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7768679A Expired JPS6052891B2 (en) 1979-06-20 1979-06-20 Power supply device for wire cut electrical discharge machining

Country Status (1)

Country Link
JP (1) JPS6052891B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100832A (en) * 1974-02-19 1982-06-23 Ex Cell O Corp Tooth form forming tool
JPS60123218A (en) * 1983-12-02 1985-07-01 Fanuc Ltd Power source for electric discharge machining
JPS60180722A (en) * 1984-02-29 1985-09-14 Fanuc Ltd Discharge voltage detection circuit
JPS61274811A (en) * 1985-05-30 1986-12-05 Fanuc Ltd Electric discharge machining method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100832A (en) * 1974-02-19 1982-06-23 Ex Cell O Corp Tooth form forming tool
JPS60123218A (en) * 1983-12-02 1985-07-01 Fanuc Ltd Power source for electric discharge machining
JPH0120013B2 (en) * 1983-12-02 1989-04-13 Fanuc Ltd
JPS60180722A (en) * 1984-02-29 1985-09-14 Fanuc Ltd Discharge voltage detection circuit
JPH0442122B2 (en) * 1984-02-29 1992-07-10 Fanuc Ltd
JPS61274811A (en) * 1985-05-30 1986-12-05 Fanuc Ltd Electric discharge machining method
JPH0474128B2 (en) * 1985-05-30 1992-11-25

Also Published As

Publication number Publication date
JPS6052891B2 (en) 1985-11-21

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