| 摘要 |
PURPOSE:To provide a titled device which accomplishes automatic welding without mutual interference by feeding an electric power source via filters to a servocontrol part, microprocessor and welding power source system and connecting an output control part for current and voltage detection signals, and a microprocessor by means of photocouplers. CONSTITUTION:A primary electric power source 22 is fed via filters 29, 30, 39 to a servocontrol part 37 for positioning, a control microprocessor 26 and a welding power source system 21 to eliminate the fluctuation and interference of a working power source. An output control part 55 for current and voltage detection 63, 64 signals and the microprocessor 26 are connected via DC photocouplers 66, 67 to eliminate the mutual interference of an electrical fluctuation. The respective control parts 26, 37, 55 are thus operated normally without interference by which automatic arc welding is improved. |
