Welding method for non-equal-wall-thickness and non-uniform-gap jointed board welding robot

The invention discloses a welding method for a non-equal-wall-thickness and non-uniform-gap jointed board welding robot, belongs to the technical field of general welding, and aims to solve the problems of weld bead undercut, weld penetration, discontinuous weld joints and the like caused by welding of an existing non-equal-wall-thickness and non-uniform-gap jointed board through a railway wagon body maintenance robot. The visual intervention control unit is combined with a traditional welding robot, specific data of'non-equal gaps and non-uniform wall thicknesses' of a to-be-detected weld joint are accurately measured through a laser tracking generator in the visual intervention control unit, an accurate weld joint form is provided for subsequent welding work, meanwhile, the weld joint is photographed through an open arc camera, and the welding quality is improved. According to the welding method for the non-equal-wall-thickness and non-uniform-gap splicing welding seams, the welding seam center position is