| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent occurrence of fire on a wet type dust collecting machine due to ignition of the fume, when welding fume generated in the laser welding machine is collected by the wet type dust collecting machine. SOLUTION: A welding machine control unit 61 outputs starting and stopping signals corresponding to operations of starting and stopping switches 62 and 63, so as to start the laser welding machine 1 corresponding to the input of start allowing signals and stop the laser welding machine 1 corresponding to the operation of the stopping switch 63. A dust collecting machine control unit 65 starts driving of a wet type dust collecting machine 2 corresponding to input of the start signals from the welding machine control unit 61, and provides start allowing signals to the welding machine control unit 61 corresponding to the judgement that the wet type dust collecting machine 2 is normally actuated on the basis of detected values of irregularity detectors 67, 68, 69, 70, and 71 after the setting time is elapsed from the input of the starting signals. Then, the driving of the wet type dust collecting machine 2 is stopped after a given delay time is elapsed from the time when the stopping signal is inputted from the welding machine control unit 61.</p> |
