JPS5621728A - Power unit for electric discharge machining - Google Patents

Power unit for electric discharge machining

Info

Publication number
JPS5621728A
JPS5621728A JP9327579A JP9327579A JPS5621728A JP S5621728 A JPS5621728 A JP S5621728A JP 9327579 A JP9327579 A JP 9327579A JP 9327579 A JP9327579 A JP 9327579A JP S5621728 A JPS5621728 A JP S5621728A
Authority
JP
Japan
Prior art keywords
charge
condenser
discharge
voltage
machining
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
JP9327579A
Other languages
Japanese (ja)
Other versions
JPS5652691B2 (en
Inventor
Tadao Oizumi
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.)
Makino Milling Machine Co Ltd
Original Assignee
Makino Milling Machine Co Ltd
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 Makino Milling Machine Co Ltd filed Critical Makino Milling Machine Co Ltd
Priority to JP9327579A priority Critical patent/JPS5621728A/en
Publication of JPS5621728A publication Critical patent/JPS5621728A/en
Publication of JPS5652691B2 publication Critical patent/JPS5652691B2/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
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
    • B23H1/022—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges for shaping the discharge pulse train

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

PURPOSE:To maintain a discharge start voltage at a constant level for a device and improve its machining efficiency, by providing independent switching means in charge and discharge circuits respectively of a condenser and open-close controlling the both switching means in response to a charge voltage of the condenser. CONSTITUTION:A condenser 6 is connected to a DC power source 5 through a current limiting resistor 7 and charge switching circuit 8. A charge-discharge control circuit 11 generates control signals for controlling charge end and discharge start timings of the condenser 6 and a charge-discharge repetition period of the condenser 6, and its control signal S1 controls an on-off operation for the charge switching circuit 8 while its control signal S2 controls an on-off operation for a discharge switching circuit 12 intermediately connected between the condenser 6 and machining electrode 2. Then the charge-discharge control circuit 11 is applied a voltage Vc across both ends of the condenser 6 and voltage Vg across a machining 4 as input signal voltages.
JP9327579A 1979-07-24 1979-07-24 Power unit for electric discharge machining Granted JPS5621728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9327579A JPS5621728A (en) 1979-07-24 1979-07-24 Power unit for electric discharge machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9327579A JPS5621728A (en) 1979-07-24 1979-07-24 Power unit for electric discharge machining

Publications (2)

Publication Number Publication Date
JPS5621728A true JPS5621728A (en) 1981-02-28
JPS5652691B2 JPS5652691B2 (en) 1981-12-14

Family

ID=14077881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9327579A Granted JPS5621728A (en) 1979-07-24 1979-07-24 Power unit for electric discharge machining

Country Status (1)

Country Link
JP (1) JPS5621728A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681997A (en) * 1983-10-12 1987-07-21 Fanuc Ltd Wire-cut, electric discharge machining power supply unit
US5380975A (en) * 1991-12-24 1995-01-10 Mitsubishi Denki Kabushiki Kaisha Electric discharge machining apparatus
US9950377B2 (en) * 2014-05-30 2018-04-24 National Taiwan Normal University Plural resistance-capacitance (PRC) electrical discharge machining system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029210A (en) * 1983-06-20 1985-02-14 Fanuc Ltd Electric discharge machining power source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681997A (en) * 1983-10-12 1987-07-21 Fanuc Ltd Wire-cut, electric discharge machining power supply unit
US5380975A (en) * 1991-12-24 1995-01-10 Mitsubishi Denki Kabushiki Kaisha Electric discharge machining apparatus
US9950377B2 (en) * 2014-05-30 2018-04-24 National Taiwan Normal University Plural resistance-capacitance (PRC) electrical discharge machining system

Also Published As

Publication number Publication date
JPS5652691B2 (en) 1981-12-14

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