JPS56139283A - Power source device for welding machine - Google Patents

Power source device for welding machine

Info

Publication number
JPS56139283A
JPS56139283A JP4035480A JP4035480A JPS56139283A JP S56139283 A JPS56139283 A JP S56139283A JP 4035480 A JP4035480 A JP 4035480A JP 4035480 A JP4035480 A JP 4035480A JP S56139283 A JPS56139283 A JP S56139283A
Authority
JP
Japan
Prior art keywords
welding
current
insufficient
thyristors
switching circuit
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
JP4035480A
Other languages
Japanese (ja)
Other versions
JPS6161908B2 (en
Inventor
Daisaku Morinaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP4035480A priority Critical patent/JPS56139283A/en
Publication of JPS56139283A publication Critical patent/JPS56139283A/en
Publication of JPS6161908B2 publication Critical patent/JPS6161908B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

PURPOSE: To reduce the downtime of welding machines, by providing a means which causes the welding machine not to stop at the first insufficiency of welding current and the machine to stop when an insufficient condition is again detected in the next welding current.
CONSTITUTION: The program is started, and data is inputted and displayed on thyristors 2 and 3, and then the abnormality of switching circuit 20 is confirmed. Then, when the starting command is on, the welding gun 6 is pressurized and electric current is supplied to thyristors 2 and 3 to turn on the switching circuit 20. Welding gun 6 is maintained under pressured condition and the thyristor current flowing through switching circuit 20 composed of thyristors 2 and 3 is compared with the set value. When it is judged that the thyristor current is insufficient, detecting is performed and when the insufficiency of the current detected continuously at two times, a trouble disposal is performed. When the electric current is insufficient only at the first time, the pressuring operation of welding gun is performed and the is continued. In this way, when an insufficient condition occurs temporarily, the operation can be continued without stopping the whole equipment.
COPYRIGHT: (C)1981,JPO&Japio
JP4035480A 1980-03-31 1980-03-31 Power source device for welding machine Granted JPS56139283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4035480A JPS56139283A (en) 1980-03-31 1980-03-31 Power source device for welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4035480A JPS56139283A (en) 1980-03-31 1980-03-31 Power source device for welding machine

Publications (2)

Publication Number Publication Date
JPS56139283A true JPS56139283A (en) 1981-10-30
JPS6161908B2 JPS6161908B2 (en) 1986-12-27

Family

ID=12578289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4035480A Granted JPS56139283A (en) 1980-03-31 1980-03-31 Power source device for welding machine

Country Status (1)

Country Link
JP (1) JPS56139283A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939483A (en) * 1982-08-27 1984-03-03 Toshiba Corp Arithmetic device for using rate of electric current in resistance welding machine
JPS6352776A (en) * 1986-08-21 1988-03-05 Toa Seiki Kk Resistance welding machine
JPS6384774A (en) * 1986-09-26 1988-04-15 Daihatsu Motor Co Ltd Short circuit detector for secondary cable for welder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939483A (en) * 1982-08-27 1984-03-03 Toshiba Corp Arithmetic device for using rate of electric current in resistance welding machine
JPH0253155B2 (en) * 1982-08-27 1990-11-15 Tokyo Shibaura Electric Co
JPS6352776A (en) * 1986-08-21 1988-03-05 Toa Seiki Kk Resistance welding machine
JPH0247313B2 (en) * 1986-08-21 1990-10-19 Nasu Tooa Kk
JPS6384774A (en) * 1986-09-26 1988-04-15 Daihatsu Motor Co Ltd Short circuit detector for secondary cable for welder
JPH0411314B2 (en) * 1986-09-26 1992-02-28

Also Published As

Publication number Publication date
JPS6161908B2 (en) 1986-12-27

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