SU121888A1 - Method for automatic current control during resistance welding - Google Patents
Method for automatic current control during resistance weldingInfo
- Publication number
- SU121888A1 SU121888A1 SU616654A SU616654A SU121888A1 SU 121888 A1 SU121888 A1 SU 121888A1 SU 616654 A SU616654 A SU 616654A SU 616654 A SU616654 A SU 616654A SU 121888 A1 SU121888 A1 SU 121888A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current control
- resistance welding
- control during
- sensor
- automatic current
- Prior art date
Links
Landscapes
- Arc Welding Control (AREA)
Description
Известные способы автоматического регулировани тока при точечной или роликовой контактной сварке, предусматривающие использование полупроводникового датчика Холла с интегрирующим устройством , не обеспечивают достаточной чувствительности датчика. Дл устранени указанного недостатка предлагаетс питать датчик импульсным током, включаемым синхроппо со сварочным током.The known methods of automatic current control in spot or roller resistance welding, involving the use of a Hall semiconductor sensor with an integrating device, do not provide sufficient sensor sensitivity. To eliminate this drawback, it is proposed to supply the sensor with a pulse current switched on by the synchro with welding current.
Работа регул тора происходит следующим образом. Полупроводниковый датчик Холла помещают в магнитное поле сварочного тока, располага его вблизи вторичного контура сварочной мащины.The operation of the regulator is as follows. Semiconductor Hall sensor is placed in the magnetic field of the welding current, located near the secondary circuit of the welding mashiny.
Под действием магнитного пол , создаваемого сварочным током, в датчике возникает э.д.с., пропорциональна сварочному току. С помощью квадратичного детектора и интегрирующего усилител эта э.д.с. преобразуетс в напр жение, пропорциональное квадрату эффективного значени сварочного тока. Полученное напр жение подаетс на вход обычного регул тора, где оно сравниваетс с опорным напр жением и далее используетс дл регулировани угла зажигани силовых игнитронов в игнитронном прерывателе.Under the action of a magnetic field created by the welding current, an emf occurs in the sensor, which is proportional to the welding current. Using a quadratic detector and an integrating amplifier, this emf. is converted to a voltage proportional to the square of the effective value of the welding current. The resulting voltage is applied to the input of a conventional regulator, where it is compared with the reference voltage and is then used to adjust the ignition angle of the power ignitrons in the ignitron breaker.
Дл повыщени чувствительности датчика последний питают импульсным током, синхронизованным со сварочным током, благодар чему э.д.с., возникающа в датчике под действием магнитного пол сварочной цепи, возрастает, и соответственно, увеличиваетс чувствительность датчика.To increase the sensitivity of the sensor, the latter is fed with a pulse current synchronized with the welding current, due to which the emf arising in the sensor under the action of the magnetic field of the welding circuit increases and, accordingly, the sensitivity of the sensor increases.
Предмет изобретени Subject invention
Способ автоматического регулировани тока при контактной сварке , при котором в качестве датчика тока используетс полупроводниковый датчик Холла с интегрирующим устройством, отличающийс тем, что, с целью повыщени чувствительности датчика, последний питают импульсным током, включаемым синхронно со сварочным током.A method of automatic current control in resistance welding, in which a Hall effect semiconductor sensor with an integrating device is used as a current sensor, characterized in that, in order to increase the sensitivity of the sensor, the latter is supplied with a pulse current switched synchronously with the welding current.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU616654A SU121888A1 (en) | 1959-01-14 | 1959-01-14 | Method for automatic current control during resistance welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU616654A SU121888A1 (en) | 1959-01-14 | 1959-01-14 | Method for automatic current control during resistance welding |
Publications (1)
Publication Number | Publication Date |
---|---|
SU121888A1 true SU121888A1 (en) | 1959-11-30 |
Family
ID=48393643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU616654A SU121888A1 (en) | 1959-01-14 | 1959-01-14 | Method for automatic current control during resistance welding |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU121888A1 (en) |
-
1959
- 1959-01-14 SU SU616654A patent/SU121888A1/en active
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