JPS57149071A - Controller for resistance welding machine - Google Patents

Controller for resistance welding machine

Info

Publication number
JPS57149071A
JPS57149071A JP3434581A JP3434581A JPS57149071A JP S57149071 A JPS57149071 A JP S57149071A JP 3434581 A JP3434581 A JP 3434581A JP 3434581 A JP3434581 A JP 3434581A JP S57149071 A JPS57149071 A JP S57149071A
Authority
JP
Japan
Prior art keywords
stepwise
voltage
integrated value
tips
welding
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
JP3434581A
Other languages
Japanese (ja)
Inventor
Seiji Takagi
Masaru Tanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3434581A priority Critical patent/JPS57149071A/en
Publication of JPS57149071A publication Critical patent/JPS57149071A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B23K11/258—Monitoring devices using digital means the measured parameter being a voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

PURPOSE:To improve the efficiency of welding work without requiring skilled operators in a titled controller by providing an integrating circuit for the voltage between tips, a reference device, etc. and making the welding time long stepwise at every fall of said integrated value down to stepwise reference values or below. CONSTITUTION:This device is provided with an integrating circuit 6 which determines the integrated value of the voltage electrode tips 3 and 4 in the prescribed electrictity conduction cycles between said tips after the start of welding or the voltage between the tips up to the prescribed electricity conduction cycle, a reference device 8 which generates stepwise reference voltages, a comparator 7 which compares said integrated value and the reference voltage of the device 8, a timer time regulating circuit 9 which controls the welding time stepwise, etc. The device is so constituted that a switch SM is controlled with the circuit 9 in accordance with the output of the comparator 7 so a to make the welding time long stepwise at every fall of said integrated value down to the stepwise reference voltage or below. In this way, the good weld quality is obtained without requiring skilled operations.
JP3434581A 1981-03-09 1981-03-09 Controller for resistance welding machine Pending JPS57149071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3434581A JPS57149071A (en) 1981-03-09 1981-03-09 Controller for resistance welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3434581A JPS57149071A (en) 1981-03-09 1981-03-09 Controller for resistance welding machine

Publications (1)

Publication Number Publication Date
JPS57149071A true JPS57149071A (en) 1982-09-14

Family

ID=12411539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3434581A Pending JPS57149071A (en) 1981-03-09 1981-03-09 Controller for resistance welding machine

Country Status (1)

Country Link
JP (1) JPS57149071A (en)

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