JPS56163083A - Resistance welding control method - Google Patents
Resistance welding control methodInfo
- Publication number
- JPS56163083A JPS56163083A JP6678580A JP6678580A JPS56163083A JP S56163083 A JPS56163083 A JP S56163083A JP 6678580 A JP6678580 A JP 6678580A JP 6678580 A JP6678580 A JP 6678580A JP S56163083 A JPS56163083 A JP S56163083A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- interchip
- welding
- firing angle
- cycle
- 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
- Resistance Welding (AREA)
- Arc Welding Control (AREA)
Abstract
PURPOSE: To equalize and improve a welding quality, by operating a firing angle of a switching element so that inter-welding electrode voltage exceeds a reference value which has been decided in advance, by one degree at least, in case of spot welding for controlling a welding current.
CONSTITUTION: During a constant limited time t1 from start of power application, it only compares interchip voltage of each cycle and a reference value V0. In case when a current has flowed normally, the interchip voltage attains the reference value V0 after t2 from start of operation, therefore, in the section of t2, welding is performed until power application is finished without performing a changing operation of a firing angle of a switching element such as a thyristor, etc. In case when there is no cycle at all of interchip voltage exceeding V0 in the section t1 as shown by a broken line, owing to drop of input voltage, etc., the firing angle is operated by a prescribed extent in the section t2. This operation is continuously executed until the interchip voltage attains to V0. When it attains to V0 at the point of Tp, after Tp, the interchip voltage is monitored, and until it shows a decreasing tendency, the firing angle is operated in the direction where a current is decreased by a prescribed extent in order at every cycle.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6678580A JPS5940551B2 (en) | 1980-05-19 | 1980-05-19 | Resistance welding control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6678580A JPS5940551B2 (en) | 1980-05-19 | 1980-05-19 | Resistance welding control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56163083A true JPS56163083A (en) | 1981-12-15 |
| JPS5940551B2 JPS5940551B2 (en) | 1984-10-01 |
Family
ID=13325857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6678580A Expired JPS5940551B2 (en) | 1980-05-19 | 1980-05-19 | Resistance welding control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940551B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352099A (en) * | 2005-12-30 | 2009-01-21 | 罗杰·赫希 | Resistance welding machine pinch point safety sensor |
| US7759596B2 (en) * | 2005-11-30 | 2010-07-20 | Ford Motor Company | Method for controlling weld energy |
-
1980
- 1980-05-19 JP JP6678580A patent/JPS5940551B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7759596B2 (en) * | 2005-11-30 | 2010-07-20 | Ford Motor Company | Method for controlling weld energy |
| CN101352099A (en) * | 2005-12-30 | 2009-01-21 | 罗杰·赫希 | Resistance welding machine pinch point safety sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5940551B2 (en) | 1984-10-01 |
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