METHOD AND APPARATUS FOR ARC WELDING
PROBLEM TO BE SOLVED: To provide a method and apparatus for arc welding which is capable of changing welding conditions synchronizing with moving positions of a welding torch, without necessity of a dedicated function to obtain information of the torch position. SOLUTION: The arc welding method iden...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method and apparatus for arc welding which is capable of changing welding conditions synchronizing with moving positions of a welding torch, without necessity of a dedicated function to obtain information of the torch position. SOLUTION: The arc welding method identifies a time when a welding torch 41 reaches an end point in the weaving direction 71 based on characteristics of an arc high luminance region included in a welding image. Then, welding conditions are adjusted according to the welding image at the arrival time. Since an image pick-up means to picture the welding image is also utilized to identify the arrival time, the arrival time is identified and the welding conditions can be adjusted without using dedicated sensors for identification of arrival time such as limit switch, encoder and electrical sensor which are technologies used before. For example, welding conditions includes a center position of welding torch, a weaving width, a welding current and voltage and a welding speed. COPYRIGHT: (C)2005,JPO&NCIPI |
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