JPS5756178A - Detection of melt-sticking of electrode tip for spot welding - Google Patents

Detection of melt-sticking of electrode tip for spot welding

Info

Publication number
JPS5756178A
JPS5756178A JP13191280A JP13191280A JPS5756178A JP S5756178 A JPS5756178 A JP S5756178A JP 13191280 A JP13191280 A JP 13191280A JP 13191280 A JP13191280 A JP 13191280A JP S5756178 A JPS5756178 A JP S5756178A
Authority
JP
Japan
Prior art keywords
sticking
melt
tips
current
electric current
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
JP13191280A
Other languages
Japanese (ja)
Inventor
Masato Koyakata
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.)
Dengensha Toa Co Ltd
Original Assignee
Dengensha Manufacturing 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 Dengensha Manufacturing Co Ltd filed Critical Dengensha Manufacturing Co Ltd
Priority to JP13191280A priority Critical patent/JPS5756178A/en
Publication of JPS5756178A publication Critical patent/JPS5756178A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To make constitution simple and detect the melt sticking defect owing to the melt-sticking of electrode tips surely by detecting the melt-sticking of the tips with an electric current and voltage detecting means and announcing this with a signal generating means.
CONSTITUTION: When electrode tips 1, 1' are normally opened from objects 5 to be welded during open time without causing melt-sticking, no electric current and voltage are detected by an electric current and voltage detecting means 3 despite the supply of test current from a current supply means 2, hence a signal generating means 4 emits no signals. Next, in case the tips 1, 1' are stuck by melting, a welding circuit is conducted via the conductive objects 5 upon supplying of the test current from the means 2, and the current is detected with the mens 3. This is transmitted to the mans 4, which in turn generates a prescribed signal, thereby announcing the occurrence of the welding defect owing to the melt-sticking of the tips. Hence, the required detection is accomplished without providing any melt sticking detecting circuit separately to the secondary circuits.
COPYRIGHT: (C)1982,JPO&Japio
JP13191280A 1980-09-22 1980-09-22 Detection of melt-sticking of electrode tip for spot welding Pending JPS5756178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13191280A JPS5756178A (en) 1980-09-22 1980-09-22 Detection of melt-sticking of electrode tip for spot welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13191280A JPS5756178A (en) 1980-09-22 1980-09-22 Detection of melt-sticking of electrode tip for spot welding

Publications (1)

Publication Number Publication Date
JPS5756178A true JPS5756178A (en) 1982-04-03

Family

ID=15069081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13191280A Pending JPS5756178A (en) 1980-09-22 1980-09-22 Detection of melt-sticking of electrode tip for spot welding

Country Status (1)

Country Link
JP (1) JPS5756178A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976683A (en) * 1982-10-22 1984-05-01 Dengensha Mfg Co Ltd Resistance welding machine secondary circuit monitoring device
JPH0232385U (en) * 1988-08-23 1990-02-28
EP0650797A1 (en) * 1993-10-27 1995-05-03 Toyota Jidosha Kabushiki Kaisha Method and apparatus for separating a temperature-adhered electrode tip
US5582747A (en) * 1993-08-25 1996-12-10 Toyota Jidosha Kabushiki Kaisha Spot welding control method and apparatus using a servo welding gun

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4421461Y1 (en) * 1965-10-21 1969-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4421461Y1 (en) * 1965-10-21 1969-09-11

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976683A (en) * 1982-10-22 1984-05-01 Dengensha Mfg Co Ltd Resistance welding machine secondary circuit monitoring device
JPH0232385U (en) * 1988-08-23 1990-02-28
US5510593A (en) * 1993-01-27 1996-04-23 Toyota Jidosha Kabushiki Kaisha Method and apparatus for separating a temperature-adhered electrode tip
US5582747A (en) * 1993-08-25 1996-12-10 Toyota Jidosha Kabushiki Kaisha Spot welding control method and apparatus using a servo welding gun
EP0650797A1 (en) * 1993-10-27 1995-05-03 Toyota Jidosha Kabushiki Kaisha Method and apparatus for separating a temperature-adhered electrode tip

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