JPS5762877A - Control device for resistance welding machine - Google Patents
Control device for resistance welding machineInfo
- Publication number
- JPS5762877A JPS5762877A JP13721380A JP13721380A JPS5762877A JP S5762877 A JPS5762877 A JP S5762877A JP 13721380 A JP13721380 A JP 13721380A JP 13721380 A JP13721380 A JP 13721380A JP S5762877 A JPS5762877 A JP S5762877A
- Authority
- JP
- Japan
- Prior art keywords
- control
- slope
- amplifier
- resistance
- differential type
- 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
- Arc Welding Control (AREA)
Abstract
PURPOSE: To provide a control device for a resistance welding machine permitting safe, sure, and precision time controlling free from explosion by so constituting the same that with respect to sequence control means in particular the slope control can be shifted to the next tine control upon thorough completion of the former control.
CONSTITUTION: In the above-described control device, staircase voltage which is a slope control output and reference bias for detecting the completion of down slope are compared by using an OP amplifier 25 in a slope control circuit which is a part of phase control circuit. When it lowers down to below the reference detection value, the control is shifted to the holding time which is the next sequence in synchronization with a welding electric power source. Hence, the amplifier 25 of current differential type or voltage differential type is used. In the case of the current differential type, if the staircase voltage A of terminals 22 and the current value flowed in by a resistance 23 are larger than the current value flowed in by a VDD12V and a resistance 24, it is judged that the device is under down slope control. When the staircase waveform drops synchronously with the welding power source and the flowing in current value drops below the reference value, the output of the amplifier 25 goes to a high level and the down slope completes.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13721380A JPS6024747B2 (en) | 1980-09-30 | 1980-09-30 | Resistance welding machine control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13721380A JPS6024747B2 (en) | 1980-09-30 | 1980-09-30 | Resistance welding machine control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5762877A true JPS5762877A (en) | 1982-04-16 |
JPS6024747B2 JPS6024747B2 (en) | 1985-06-14 |
Family
ID=15193427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13721380A Expired JPS6024747B2 (en) | 1980-09-30 | 1980-09-30 | Resistance welding machine control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6024747B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0535088Y2 (en) * | 1985-03-29 | 1993-09-06 | ||
JPH0423810Y2 (en) * | 1985-04-10 | 1992-06-03 | ||
JPS61172038U (en) * | 1985-04-15 | 1986-10-25 | ||
JPS61178353U (en) * | 1985-04-26 | 1986-11-07 |
-
1980
- 1980-09-30 JP JP13721380A patent/JPS6024747B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6024747B2 (en) | 1985-06-14 |
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