JPS558314A - Welding monitor apparatus of condenser discharge type stud welder - Google Patents

Welding monitor apparatus of condenser discharge type stud welder

Info

Publication number
JPS558314A
JPS558314A JP7974778A JP7974778A JPS558314A JP S558314 A JPS558314 A JP S558314A JP 7974778 A JP7974778 A JP 7974778A JP 7974778 A JP7974778 A JP 7974778A JP S558314 A JPS558314 A JP S558314A
Authority
JP
Japan
Prior art keywords
welding
circuit
current
condenser
detecting
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
JP7974778A
Other languages
Japanese (ja)
Inventor
Isao Suematsu
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.)
NIPPON DORAIBUITSUTO KK
Japan Drive It Co Ltd
Original Assignee
NIPPON DORAIBUITSUTO KK
Japan Drive It 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 NIPPON DORAIBUITSUTO KK, Japan Drive It Co Ltd filed Critical NIPPON DORAIBUITSUTO KK
Priority to JP7974778A priority Critical patent/JPS558314A/en
Publication of JPS558314A publication Critical patent/JPS558314A/en
Pending legal-status Critical Current

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  • Arc Welding Control (AREA)

Abstract

PURPOSE: To enable welding defects to be readily detected by a non-destructive method simultaneously with welding by so constituting the apparatus that the welding current from a welding condenser is integrated and added with time and the integrated value thereof is checked.
CONSTITUTION: The output signal of a shunt circuit 1 assuming an input circuit for detecting the welding current from a welding condenser is supplied via attenuator 2 to an integrating circuit 3. In the circuit 3, the current values are subsequently integrated and added by a mensuration by parts from the discharge start point shown by the code t0 up to the pressing point tn of a stud to a base metal in the discharge current waveform of the welding condenser. Namely, in order to obtain t0I0+t1I1+t2I2+...+tnIn=ΣtI, the welding is started by detecting the welding current at tO and is stopped by detecting the absolute value I0' of the current at tn, then ΣtI is calculated. Next, the output of the circuit 3 is passed through an amplifier circuit 4 and is stored and displayed in a digital display device 5. The operator views the value displayed in the display device 5 and checks whether it is within the intended allowable range or not.
COPYRIGHT: (C)1980,JPO&Japio
JP7974778A 1978-07-03 1978-07-03 Welding monitor apparatus of condenser discharge type stud welder Pending JPS558314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7974778A JPS558314A (en) 1978-07-03 1978-07-03 Welding monitor apparatus of condenser discharge type stud welder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7974778A JPS558314A (en) 1978-07-03 1978-07-03 Welding monitor apparatus of condenser discharge type stud welder

Publications (1)

Publication Number Publication Date
JPS558314A true JPS558314A (en) 1980-01-21

Family

ID=13698809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7974778A Pending JPS558314A (en) 1978-07-03 1978-07-03 Welding monitor apparatus of condenser discharge type stud welder

Country Status (1)

Country Link
JP (1) JPS558314A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6370887U (en) * 1986-10-27 1988-05-12
JP2012240092A (en) * 2011-05-20 2012-12-10 Japan Drive-It Co Ltd Method for detecting weld defects of capacitor discharge type stud welding machine and defect detection device
JP2012240093A (en) * 2011-05-20 2012-12-10 Japan Drive-It Co Ltd Quality determination method and quality determination device for welding gun for capacitor discharge type stud welding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342159A (en) * 1976-09-27 1978-04-17 Trw Inc Means for welding studs to works

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342159A (en) * 1976-09-27 1978-04-17 Trw Inc Means for welding studs to works

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6370887U (en) * 1986-10-27 1988-05-12
JP2012240092A (en) * 2011-05-20 2012-12-10 Japan Drive-It Co Ltd Method for detecting weld defects of capacitor discharge type stud welding machine and defect detection device
JP2012240093A (en) * 2011-05-20 2012-12-10 Japan Drive-It Co Ltd Quality determination method and quality determination device for welding gun for capacitor discharge type stud welding

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