ARC WELDING CONTROL SYSTEM AND METHOD

摘要

The present invention provides an arc welding control system and method capable of simultaneously, sophisticatedly performing a weaving width control operation and a torch height control operation. Influence ratios (deltaw and deltaz) of influences of a torch height deviation (DeltaPh) and a groove wall distance deviation (DeltaPd) with respect to a manipulated variable (Deltaw) of a weaving width and a manipulated variable (Deltaz) of a torch height are set in accordance with a groove angle (theta) of a workpiece (5). A calculation unit (21) calculates the manipulated variables (Deltaz and Deltaw) of actuators (13 and 14) regarding the torch height and the weaving width such that the influence ratios (deltaw and deltaz) become large as the groove angle (theta) becomes large.