Welding method for circular hole plug welding process

The invention discloses a welding method for a circular hole plug welding process, and relates to the technical field of circular hole plug welding. The welding method for the circular hole plug welding process comprises the following steps that S1, a product needing to be welded, a welding appliance and visual equipment are prepared; s2, the size of the product needing to be welded is measured through the visual equipment; and S3, fitting the circular hole welding seam track and the welding path of the product needing to be welded through the visual equipment, calculating a spatial track coordinate of the circular hole through feature points obtained through settlement of the visual equipment, and planning the feature points on the circular hole track so as to guide the robot to use a standard welding posture to weld the whole track. The correction precision is higher, the welding posture of the robot can be corrected, the welding track is corrected in a scanning mode, and compared with a position searching