| 摘要 |
PURPOSE:To weld continuously and automatically the outside periphery of a work containing a crest bent corner, by setting the respective weld lines and welding conditions for a crest bent point from a start point, and an end point from the second start point derived from a crest bent point which has been detected automatically. CONSTITUTION:A start point P1, a crest bent point P2, and an end point P3 are inputted to a condition setting part 10 through a control panel 8. Subsequently, a welding condition of the first weld lines P1-P2 and the second weld line P2-P3 is inputted. After the input, when welding is started, a control device 2 starts a welding work in accordance with a prescribed procedure. A crest bent corner detecting part 13 of the control device 2 desires the second start point at a distance of about 0.5-1.5l (l denotes a leg length) from a crest bent point which has been derived from a variation of a welding current, and the second welding is executed by a prescribed procedure. By using a robot having such a function, the outside periphery of a work having a crest bent part can be welded efficiently.
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