| 摘要 |
PURPOSE:To miniaturize a device and increase as operation accuracy by feeing high frequency current to welding transformer and by arranging inside arm with integrating a rectifier and transformer. CONSTITUTION:The high frequency current of 1kHz, etc. is fed via frequency converter (invertor) 7 from commercial frequency power source to welding transformer 10a. A transformer and rectifier integrated part 10 is made by integrating with combining the transformer 10a and rectifier 10b. The transformer rectifier integrated part 10 is fitted to the inside of the arm 3 as a part of the component of the arm 3. In this case, the transformer 10a is to be located near main column 3a. Each operation accuracy is increased and the whole body of the device is miniaturized by the reduction in the superimposed moment of the arm 3 with this mechanism.
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