JPS5775730A - Method of sensing condition of discharge processing - Google Patents

Method of sensing condition of discharge processing

Info

Publication number
JPS5775730A
JPS5775730A JP15068180A JP15068180A JPS5775730A JP S5775730 A JPS5775730 A JP S5775730A JP 15068180 A JP15068180 A JP 15068180A JP 15068180 A JP15068180 A JP 15068180A JP S5775730 A JPS5775730 A JP S5775730A
Authority
JP
Japan
Prior art keywords
voltage
processing
discharge
discharge processing
state
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
JP15068180A
Other languages
Japanese (ja)
Inventor
Yasuo Suzuki
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko 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 Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP15068180A priority Critical patent/JPS5775730A/en
Publication of JPS5775730A publication Critical patent/JPS5775730A/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
    • 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
    • B23H1/024—Detection of, and response to, abnormal gap conditions, e.g. short circuits

Landscapes

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

Abstract

PURPOSE:To have a correct grasp of the state of discharge processing to serve for good control of the performance of discharge processing by aquiring sensing signals of the state of each discharge processing every time a new processing voltage is impressed and in such a manner sensing the state very accurately. CONSTITUTION:The level of voltage B at the terminals of a capacitor 3 which varies according to the rectangular pulsed voltage A is, upon being changed to a certain level by voltage dividing resistances 11, 12, compared with threshold voltages E2, E3 at comparators 16, 17 and further upon differentiated by a differential circuit composed of a capacitor 13 and a resistor 14 is compared with the threshold voltage E1 at another comparator 15, and during these processes as change of level, differentiation, and processing of each threshold value digital signals are extracted necessary for logical processing after the voltage B. Correlation in magnitude of the voltage B after level changing to the voltages E2 and E3 allows sensing of the state of each discharge processing such as normal discharge, out of discharging, shortcircuiting and abnormal discharge, and the result obtained is utilized for control of discharge processing.
JP15068180A 1980-10-29 1980-10-29 Method of sensing condition of discharge processing Pending JPS5775730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15068180A JPS5775730A (en) 1980-10-29 1980-10-29 Method of sensing condition of discharge processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15068180A JPS5775730A (en) 1980-10-29 1980-10-29 Method of sensing condition of discharge processing

Publications (1)

Publication Number Publication Date
JPS5775730A true JPS5775730A (en) 1982-05-12

Family

ID=15502137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15068180A Pending JPS5775730A (en) 1980-10-29 1980-10-29 Method of sensing condition of discharge processing

Country Status (1)

Country Link
JP (1) JPS5775730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11420277B2 (en) * 2018-12-25 2022-08-23 Fanuc Corporation Wire electrical discharge machine and control method of wire electrical discharge machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11420277B2 (en) * 2018-12-25 2022-08-23 Fanuc Corporation Wire electrical discharge machine and control method of wire electrical discharge machine

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