JPS577384A - Controlling device for welding machine - Google Patents
Controlling device for welding machineInfo
- Publication number
- JPS577384A JPS577384A JP8119180A JP8119180A JPS577384A JP S577384 A JPS577384 A JP S577384A JP 8119180 A JP8119180 A JP 8119180A JP 8119180 A JP8119180 A JP 8119180A JP S577384 A JPS577384 A JP S577384A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- resistance
- electric motor
- speed setting
- controlling device
- 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
Links
Landscapes
- Arc Welding Control (AREA)
Abstract
PURPOSE: To make the size of a controlling device small and improve resisting characteristic by applying a speed setting signal to the input terminal of a differential amplifier through a variable resistance and forming the resistance with fixed resistance.
CONSTITUTION: An inversion amplifier 41 conforms the voltage polarity at both ends of a shunt 31 due to load change to the polarity of input terminal of a differential amplifier 3. When an electric motor 7 is rotating under a certain loading condition, the output voltage of the inversion amplifier 41 is adjusted by adjusting a variable resistance 31 so that the number of revolutions does not change even when the load is changed. After this, speed setting input resistance 5 is adjusted to obtain desired number of revolutions corresponding to potential of the speed setting signal 6. the electric motor 7 can be controlled to a fixed speed by the above operation. In this way, the wire feeding speed or welding speed can be controlled simply and surely to a preset speed even when a small-sized electric motor is used.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8119180A JPS577384A (en) | 1980-06-16 | 1980-06-16 | Controlling device for welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8119180A JPS577384A (en) | 1980-06-16 | 1980-06-16 | Controlling device for welding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS577384A true JPS577384A (en) | 1982-01-14 |
Family
ID=13739571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8119180A Pending JPS577384A (en) | 1980-06-16 | 1980-06-16 | Controlling device for welding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS577384A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58199668A (en) * | 1982-05-14 | 1983-11-21 | Daihen Corp | Control device of welding machine |
JPH0195878A (en) * | 1987-10-06 | 1989-04-13 | Nippon Steel Corp | Gas shielded ac arc welding method |
-
1980
- 1980-06-16 JP JP8119180A patent/JPS577384A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58199668A (en) * | 1982-05-14 | 1983-11-21 | Daihen Corp | Control device of welding machine |
JPH0418942B2 (en) * | 1982-05-14 | 1992-03-30 | Daihen Corp | |
JPH0195878A (en) * | 1987-10-06 | 1989-04-13 | Nippon Steel Corp | Gas shielded ac arc welding method |
JPH0562028B2 (en) * | 1987-10-06 | 1993-09-07 | Nippon Steel Corp |
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