JPS57189731A - Electric discharge machining controller - Google Patents

Electric discharge machining controller

Info

Publication number
JPS57189731A
JPS57189731A JP7281781A JP7281781A JPS57189731A JP S57189731 A JPS57189731 A JP S57189731A JP 7281781 A JP7281781 A JP 7281781A JP 7281781 A JP7281781 A JP 7281781A JP S57189731 A JPS57189731 A JP S57189731A
Authority
JP
Japan
Prior art keywords
voltage
electrode
difference
difference voltage
control signal
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
JP7281781A
Other languages
Japanese (ja)
Other versions
JPH0144454B2 (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 JP7281781A priority Critical patent/JPS57189731A/en
Publication of JPS57189731A publication Critical patent/JPS57189731A/en
Publication of JPH0144454B2 publication Critical patent/JPH0144454B2/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
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece

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 improve responsive property of electrode feed control by adding a specified proportion of differential output of difference voltage between average voltage across discharge gap for controlling location of the electrode and reference voltage to control signal based upon said difference voltage. CONSTITUTION:Difference voltage Vg between average value of pulse voltage applied to an electrode 12 and workpiece 10 and the reference value is converted into series pulse signal through an AD converter 22, control circuit 24 and binary rate multiplier 32. The difference between this signal and pulse from a detector 42 for detecting location of the electrode 12 is counted by a counter 34 and added to an amplifier 38 through a DA converter 36 as control signal. Here differential voltage of the difference voltage Vg is added to this control signal in proportion to k of a multiplier 50. Value of k is controlled to the optimum one such that the difference voltage Vg and the output of a tachogenerator 40 are compared with each other to make their wave-forms similar.
JP7281781A 1981-05-14 1981-05-14 Electric discharge machining controller Granted JPS57189731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7281781A JPS57189731A (en) 1981-05-14 1981-05-14 Electric discharge machining controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7281781A JPS57189731A (en) 1981-05-14 1981-05-14 Electric discharge machining controller

Publications (2)

Publication Number Publication Date
JPS57189731A true JPS57189731A (en) 1982-11-22
JPH0144454B2 JPH0144454B2 (en) 1989-09-27

Family

ID=13500342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7281781A Granted JPS57189731A (en) 1981-05-14 1981-05-14 Electric discharge machining controller

Country Status (1)

Country Link
JP (1) JPS57189731A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63114813A (en) * 1986-10-31 1988-05-19 Inoue Japax Res Inc Feed controller for electric discharge machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63114813A (en) * 1986-10-31 1988-05-19 Inoue Japax Res Inc Feed controller for electric discharge machine

Also Published As

Publication number Publication date
JPH0144454B2 (en) 1989-09-27

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