JPS5639181A - Quality assurance of resistance welded part and its check method - Google Patents
Quality assurance of resistance welded part and its check methodInfo
- Publication number
- JPS5639181A JPS5639181A JP8771880A JP8771880A JPS5639181A JP S5639181 A JPS5639181 A JP S5639181A JP 8771880 A JP8771880 A JP 8771880A JP 8771880 A JP8771880 A JP 8771880A JP S5639181 A JPS5639181 A JP S5639181A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- reference voltage
- welded part
- chips
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To check the quality of welded part, by controlling the welding current through the comparsion of the voltage between electrodes clipping welded material with the timing change of the set reference voltage.
CONSTITUTION: The welded material 1 is pressed with the electrode chips 2a, 2b, power is applied via the secondary conductor 3 of the welding transformer 4, and the voltage between the chips 2a, 2b is detected and fed to the comparison judging circuit 6. But, the voltage at the initial stage of power application is removed at the cutoff circuit 5. The reference voltage generator 7 produces the voltage which changes timewise to obtain the excellent welded part preset. The comparison judging circuit 6 compares the detection voltage with the reference voltage changing timewise, the difference is changed into correction signal at the correction signal generating circuit 8, it is controlled at the welding current control circuit 9 and the voltage between chips is matched within the reference voltage range. If the difference between the said voltage and the reference voltage is greater beyond control, the failure signal is fed to the judgement and display circuit 10 from the comparison judging circuit 6 to display the judgement of failure.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8771880A JPS5914312B2 (en) | 1980-06-30 | 1980-06-30 | Quality assurance and checking method for resistance welds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8771880A JPS5914312B2 (en) | 1980-06-30 | 1980-06-30 | Quality assurance and checking method for resistance welds |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8664677A Division JPS5421938A (en) | 1977-07-21 | 1977-07-21 | Method of checking quality of resistance welded portion |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639181A true JPS5639181A (en) | 1981-04-14 |
JPS5914312B2 JPS5914312B2 (en) | 1984-04-04 |
Family
ID=13922676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8771880A Expired JPS5914312B2 (en) | 1980-06-30 | 1980-06-30 | Quality assurance and checking method for resistance welds |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5914312B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6518536B2 (en) | 2000-03-30 | 2003-02-11 | Matsushita Electric Industrial Co., Ltd. | Joining equipment |
CN112526359A (en) * | 2020-10-23 | 2021-03-19 | 风帆有限责任公司 | Lead-acid storage battery through-wall welding spot detection method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS645525U (en) * | 1987-06-30 | 1989-01-12 |
-
1980
- 1980-06-30 JP JP8771880A patent/JPS5914312B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6518536B2 (en) | 2000-03-30 | 2003-02-11 | Matsushita Electric Industrial Co., Ltd. | Joining equipment |
CN112526359A (en) * | 2020-10-23 | 2021-03-19 | 风帆有限责任公司 | Lead-acid storage battery through-wall welding spot detection method |
Also Published As
Publication number | Publication date |
---|---|
JPS5914312B2 (en) | 1984-04-04 |
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