JPS56128683A - Resistance welding control method - Google Patents

Resistance welding control method

Info

Publication number
JPS56128683A
JPS56128683A JP3120480A JP3120480A JPS56128683A JP S56128683 A JPS56128683 A JP S56128683A JP 3120480 A JP3120480 A JP 3120480A JP 3120480 A JP3120480 A JP 3120480A JP S56128683 A JPS56128683 A JP S56128683A
Authority
JP
Japan
Prior art keywords
signal
value
set value
welding
converter
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
JP3120480A
Other languages
Japanese (ja)
Other versions
JPS6016875B2 (en
Inventor
Seiichiro Tamai
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 JP3120480A priority Critical patent/JPS6016875B2/en
Publication of JPS56128683A publication Critical patent/JPS56128683A/en
Publication of JPS6016875B2 publication Critical patent/JPS6016875B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)
  • Resistance Welding (AREA)

Abstract

PURPOSE: To make spot welding uniform and improve the quality, by detecting the acoustic emission signal at the welding time and by comparing the cumulative value of this signal with the set value to control the welding current.
CONSTITUTION: The acoustic emission signal is detected at the welding time and is converted to an electric signal through piezoelectric element 3. This signal is input to microcomputer 20 through filter circuit 4, amplifier 5, integrator 6, and A/D converter 7 and is accumulated. This cumulative value is compared with the set value given by digital switch 18. The set value of digital switch 12 is taken into computer 20 to operate the welding current, and it is output through D/A converter 22 and is given as the designated value of the thyristor ignition pulse setting circuit of timer 19. If the input value to computer 20 is larger than the set value, the control signal of gate 21 is made low-level to cut power supply.
COPYRIGHT: (C)1981,JPO&Japio
JP3120480A 1980-03-11 1980-03-11 Resistance welding control method Expired JPS6016875B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3120480A JPS6016875B2 (en) 1980-03-11 1980-03-11 Resistance welding control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3120480A JPS6016875B2 (en) 1980-03-11 1980-03-11 Resistance welding control method

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP18177684A Division JPS6044074B2 (en) 1984-08-31 1984-08-31 Resistance welding control method
JP18177584A Division JPS6044073B2 (en) 1984-08-31 1984-08-31 Resistance welding control method

Publications (2)

Publication Number Publication Date
JPS56128683A true JPS56128683A (en) 1981-10-08
JPS6016875B2 JPS6016875B2 (en) 1985-04-27

Family

ID=12324880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3120480A Expired JPS6016875B2 (en) 1980-03-11 1980-03-11 Resistance welding control method

Country Status (1)

Country Link
JP (1) JPS6016875B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007328176A (en) * 2006-06-08 2007-12-20 Chugoku Electric Power Co Inc:The Large-sized advertising device for outdoor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007328176A (en) * 2006-06-08 2007-12-20 Chugoku Electric Power Co Inc:The Large-sized advertising device for outdoor

Also Published As

Publication number Publication date
JPS6016875B2 (en) 1985-04-27

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