JPS5533806A - Current control device for resistance welding machine - Google Patents

Current control device for resistance welding machine

Info

Publication number
JPS5533806A
JPS5533806A JP10438778A JP10438778A JPS5533806A JP S5533806 A JPS5533806 A JP S5533806A JP 10438778 A JP10438778 A JP 10438778A JP 10438778 A JP10438778 A JP 10438778A JP S5533806 A JPS5533806 A JP S5533806A
Authority
JP
Japan
Prior art keywords
current
welding
firing angle
contacts
resistance 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.)
Granted
Application number
JP10438778A
Other languages
Japanese (ja)
Other versions
JPS5743357B2 (en
Inventor
Kuniaki Mukai
Takahiro Tani
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10438778A priority Critical patent/JPS5533806A/en
Publication of JPS5533806A publication Critical patent/JPS5533806A/en
Publication of JPS5743357B2 publication Critical patent/JPS5743357B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To obtain an effective current control device for resistance welding machine with increase response of welding current control, by constituting so that the error of the current-time product actually flowing may be as small as possible with respect to the setting of the current-time product of the resistance welding.
CONSTITUTION: Contacts 18, 6 are closed by a weld start signal, and a reference input proportional to the set current is applied to an adding part 3. Passing the welding current from 0 or a specified level, the welding current is settled approximately at the set current value after matching time of several cycles. After energizing for a specified number of cycles, the contacts 18, 6 are opened by the output of a cycle control part 13 to set the welding current to 0, and the output of an amplifying part 4 is kept at a voltage just before opening of the contact 18. Then, closing the contacts 18, 6, power is supplied at the same firing angle as the firing angle of the final energization cycle of the previous welding. Afterwards, the firing angle is automatically controlled so that the current may be close to the set current value depending on the load impedance. Thereafter, the firing angle of initial energization at every welding point is made approximately equal to the final firing angle of the previous welding.
COPYRIGHT: (C)1980,JPO&Japio
JP10438778A 1978-08-29 1978-08-29 Current control device for resistance welding machine Granted JPS5533806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10438778A JPS5533806A (en) 1978-08-29 1978-08-29 Current control device for resistance welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10438778A JPS5533806A (en) 1978-08-29 1978-08-29 Current control device for resistance welding machine

Publications (2)

Publication Number Publication Date
JPS5533806A true JPS5533806A (en) 1980-03-10
JPS5743357B2 JPS5743357B2 (en) 1982-09-14

Family

ID=14379331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10438778A Granted JPS5533806A (en) 1978-08-29 1978-08-29 Current control device for resistance welding machine

Country Status (1)

Country Link
JP (1) JPS5533806A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045728A (en) * 1983-08-24 1985-03-12 Sanshin Ind Co Ltd Flywheel magneto cover for engine for boat propeller

Also Published As

Publication number Publication date
JPS5743357B2 (en) 1982-09-14

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