JPS5615937A - Gap controlling device of electrospark machining device - Google Patents

Gap controlling device of electrospark machining device

Info

Publication number
JPS5615937A
JPS5615937A JP8943979A JP8943979A JPS5615937A JP S5615937 A JPS5615937 A JP S5615937A JP 8943979 A JP8943979 A JP 8943979A JP 8943979 A JP8943979 A JP 8943979A JP S5615937 A JPS5615937 A JP S5615937A
Authority
JP
Japan
Prior art keywords
signal
machining
gap
discharge
discriminated
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.)
Pending
Application number
JP8943979A
Other languages
Japanese (ja)
Inventor
Kiyoshi Inoue
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.)
Inoue Japax Research Inc
Original Assignee
Inoue Japax Research Inc
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 Inoue Japax Research Inc filed Critical Inoue Japax Research Inc
Priority to JP8943979A priority Critical patent/JPS5615937A/en
Priority to GB8020222A priority patent/GB2053514B/en
Priority to DE19803023400 priority patent/DE3023400A1/en
Priority to FR8013885A priority patent/FR2459109A1/en
Priority to IT49045/80A priority patent/IT1129022B/en
Priority to US06/161,389 priority patent/US4321451A/en
Publication of JPS5615937A publication Critical patent/JPS5615937A/en
Pending 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 stabilize the machining by a method wherein the gap control is given to correct the part machined when the required pulse discharge is repeated and the next pulse discharge is repeated in the corrected static gap. CONSTITUTION:Owing to the machining in a static gap, the machining gap is expanded gradually as the machining advances and the discharge starting becomes difficult more and more. Each discharge is detected by a resistance 8, discriminated by a discriminating circuit 9 and the number of the pulse thereof is counted by a counter 10. When counting being performed up to a preset number, the counter 10 outputs a signal, adding the signal from a shaping circuit 11 to an AND gate 7. Meanwhile, in the machining gap, a signal voltage is also detected constantly by a detecting resistance 5 and the signal therefor is added to and discriminated by a signal-generating circuit 6, which outputs a signal to reduce the gap expanded by the progress of machining, giving a driving signal to a motor 4 through the AND gate 7.
JP8943979A 1979-06-21 1979-07-13 Gap controlling device of electrospark machining device Pending JPS5615937A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP8943979A JPS5615937A (en) 1979-07-13 1979-07-13 Gap controlling device of electrospark machining device
GB8020222A GB2053514B (en) 1979-06-21 1980-06-20 Electrical discharge machining gap control using recurrent counting of gap discharges
DE19803023400 DE3023400A1 (en) 1979-06-21 1980-06-23 SERVO CONTROL METHOD AND SYSTEM FOR ELECTROEROSIVE MACHINING
FR8013885A FR2459109A1 (en) 1979-06-21 1980-06-23 METHOD AND SERVO-MECHANISM FOR CONTROLLING THE ELECTRODE-TOOL OF AN ELECTRIC DISCHARGE MACHINING MACHINE
IT49045/80A IT1129022B (en) 1979-06-21 1980-06-23 METHOD AND SERVO DEVICE INSPECTION OF THE INTERSPACE BETWEEN A TOOL ELECTRODE AND A PIECE TO BE WORKED IN A MACHINE FOR ELECTRIC DISCHARGE PROCESSING
US06/161,389 US4321451A (en) 1979-06-21 1980-06-24 Servo system and method for controlling the gap spacing between a tool and workpiece electrodes in an EDM machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8943979A JPS5615937A (en) 1979-07-13 1979-07-13 Gap controlling device of electrospark machining device

Publications (1)

Publication Number Publication Date
JPS5615937A true JPS5615937A (en) 1981-02-16

Family

ID=13970703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8943979A Pending JPS5615937A (en) 1979-06-21 1979-07-13 Gap controlling device of electrospark machining device

Country Status (1)

Country Link
JP (1) JPS5615937A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121895A (en) * 1975-04-17 1976-10-25 Inoue Japax Res Inc Clearance regulating apparatus in discharge working
JPS51124896A (en) * 1975-04-23 1976-10-30 Inoue Japax Res Inc Discharge gap adjusting apparatus for electrospark machining

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121895A (en) * 1975-04-17 1976-10-25 Inoue Japax Res Inc Clearance regulating apparatus in discharge working
JPS51124896A (en) * 1975-04-23 1976-10-30 Inoue Japax Res Inc Discharge gap adjusting apparatus for electrospark machining

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