SEAM WELDING METHOD AND SYSTEM

摘要

A change in a robot coordinate system at a reference point (C) is determined in three positions of a seam welding device (10), and calibration data is acquired (STEP 1). Correction data is determined from the calibration data based on deformation of an elastic means (22a) due to the weight of the seam welding device (10), in accordance with the position of the seam welding device (10) relative to a robot (20) (STEP 5). Teaching data is corrected on the basis of the correction data (STEP 6).