JPS55157437A - Electric discharge machining device - Google Patents

Electric discharge machining device

Info

Publication number
JPS55157437A
JPS55157437A JP6233079A JP6233079A JPS55157437A JP S55157437 A JPS55157437 A JP S55157437A JP 6233079 A JP6233079 A JP 6233079A JP 6233079 A JP6233079 A JP 6233079A JP S55157437 A JPS55157437 A JP S55157437A
Authority
JP
Japan
Prior art keywords
machining
work
residual thickness
circuit
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
JP6233079A
Other languages
Japanese (ja)
Other versions
JPS6158256B2 (en
Inventor
Toshiro Oizumi
Tetsuro Ito
Shigeo Yamada
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 JP6233079A priority Critical patent/JPS55157437A/en
Publication of JPS55157437A publication Critical patent/JPS55157437A/en
Publication of JPS6158256B2 publication Critical patent/JPS6158256B2/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
    • B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
    • B23H7/28—Moving electrode in a plane normal to the feed direction, e.g. orbiting

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 a generation of unevenness in the depth of machining due to a difference of machining radius of curvature for the finish work of a device, by detecting a feed position in the machining direction and counting the duration time of a prescribed state for the machining progress condition of a work. CONSTITUTION:When machining and finishing directional feed motions are given by a hydraulic cylinder 16 and control circuit 28 to perform a finish machining, a differential transformer 35 fixed to the final machining position feeds a signal of 1 to a comparator 38 and AND gate 42 to stop the lowering motion of an electrode 12. A circular orbital motion of the electrode 12 on an XY-plane causes a residual thickness of machining of a work 10, that is, its gap discharge voltage Vd to vary, and the output of a residual thickness detecting circuit 40 deriving from a comparison with a reference value Vc alternately varies from 0 to 1. When a monostable multivibrator 48 works for a preset period to continuously detect the residual thickness to be at most the prescribed value, a counter circuit 44 feeds a completion signal to a pulse current supply circuit 14.
JP6233079A 1979-05-21 1979-05-21 Electric discharge machining device Granted JPS55157437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6233079A JPS55157437A (en) 1979-05-21 1979-05-21 Electric discharge machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6233079A JPS55157437A (en) 1979-05-21 1979-05-21 Electric discharge machining device

Publications (2)

Publication Number Publication Date
JPS55157437A true JPS55157437A (en) 1980-12-08
JPS6158256B2 JPS6158256B2 (en) 1986-12-10

Family

ID=13197009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6233079A Granted JPS55157437A (en) 1979-05-21 1979-05-21 Electric discharge machining device

Country Status (1)

Country Link
JP (1) JPS55157437A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212026A (en) * 1989-02-08 1990-08-23 Makino Milling Mach Co Ltd Method and device for electric discharge machining
DE3943693C1 (en) * 1988-10-07 1999-02-11 Mitsubishi Electric Corp Adaptive control device for a spark erosion machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3943693C1 (en) * 1988-10-07 1999-02-11 Mitsubishi Electric Corp Adaptive control device for a spark erosion machine
JPH02212026A (en) * 1989-02-08 1990-08-23 Makino Milling Mach Co Ltd Method and device for electric discharge machining

Also Published As

Publication number Publication date
JPS6158256B2 (en) 1986-12-10

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