JPS57149072A - Control method for resistance welding machine - Google Patents

Control method for resistance welding machine

Info

Publication number
JPS57149072A
JPS57149072A JP3434681A JP3434681A JPS57149072A JP S57149072 A JPS57149072 A JP S57149072A JP 3434681 A JP3434681 A JP 3434681A JP 3434681 A JP3434681 A JP 3434681A JP S57149072 A JPS57149072 A JP S57149072A
Authority
JP
Japan
Prior art keywords
value
voltage
welding
interelectrode voltage
theta
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
JP3434681A
Other languages
Japanese (ja)
Other versions
JPS622916B2 (en
Inventor
Masaru Tanaka
Seiji Takagi
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 JP3434681A priority Critical patent/JPS57149072A/en
Publication of JPS57149072A publication Critical patent/JPS57149072A/en
Publication of JPS622916B2 publication Critical patent/JPS622916B2/ja
Granted 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)
  • Resistance Welding (AREA)

Abstract

PURPOSE:To obtain good and homogeneous results of welding by detecting interelectrode voltage at every cycle of electricity conduction during the course of welding, intergrating the same, comparing this with the integrated value of the interelectrode voltage obtained in the stage of a test mode and subjecting said voltage to feedback controlling in accordance with the difference thereof. CONSTITUTION:The interelectrode voltage during resistance welding is detected and is converted to a digital value which is inputted to a microcomputer. A test mode is set, and the digital value of the interelectrode voltage during good welding is integrated at every electriciy conduction cycle and is stored in the microcomputer. Next, an automatic controlling mode is set, and the integrated value of the interelectrode voltage of each electricity conduction cycle is compared with the value in said stage and the differential voltage E thereof is determined. The increase or decrease value theta of the conduction angle of the thyristor in an electric power source circuit is operated by the relation theta=K.E (K: variable set constant) between said value and said differential voltage E, and in accordance with the difference thereof, it is fed back, and is so controlled as to approach to said theta=K.E.
JP3434681A 1981-03-09 1981-03-09 Control method for resistance welding machine Granted JPS57149072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3434681A JPS57149072A (en) 1981-03-09 1981-03-09 Control method for resistance welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3434681A JPS57149072A (en) 1981-03-09 1981-03-09 Control method for resistance welding machine

Publications (2)

Publication Number Publication Date
JPS57149072A true JPS57149072A (en) 1982-09-14
JPS622916B2 JPS622916B2 (en) 1987-01-22

Family

ID=12411569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3434681A Granted JPS57149072A (en) 1981-03-09 1981-03-09 Control method for resistance welding machine

Country Status (1)

Country Link
JP (1) JPS57149072A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151681A1 (en) * 2007-06-12 2008-12-18 Lorch Schweisstechnik Gmbh Method and device for controlling a power source and power source having such a device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6378814U (en) * 1986-11-11 1988-05-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151681A1 (en) * 2007-06-12 2008-12-18 Lorch Schweisstechnik Gmbh Method and device for controlling a power source and power source having such a device
US8153932B2 (en) 2007-06-12 2012-04-10 Lorch Schweisstechnik Gmbh Method and device for controlling a power source and power source having such a device

Also Published As

Publication number Publication date
JPS622916B2 (en) 1987-01-22

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