METHOD FOR AUTOMATICALLY CONTROLLING WELDING CONDITIONS OF AN ARC WELDING ROBOT

摘要

A method for automatically controlling welding conditions of an arc welding robot comprising the steps of estimating the relationship between a target welding current and a welding current command to be given to a welding machine for obtaining said target welding current through a linear equation by using known data (S1, S2), determining a welding current command correponding to said target welding current by using said linear equation so as to give said welding current command so determined to said welding machine to thereby make said welding machine execute a welding operation (S3, S4), feeding back an actual welding current from said welding machine so as to store a set comprising said welding current command and said actual welding current (S6), executing this job for welding current commands having different values and then storing a plurality of sets of welding current commands and actual welding currents thus obtained (S7-S10), and determining by using a plurality of sets of data so obtained a linear relation between an actual welding current (target welding current) and a current command for each area of a welding current (S11).