Welding robot walking mechanism

The invention discloses a welding robot walking mechanism, and relates to the technical field of welding equipment, the welding robot walking mechanism comprises annular rails, supporting seats, sliding grooves, walking wheels, standby rails, hydraulic columns, a working center and a balance assembly, the annular rails are divided into an inner annular rail and an outer annular rail and are horizontally laid on the ground, and the two annular rails and the working center are concentric; a standby track is arranged between the inner annular track and the outer annular track and is concentric with the working center, a plurality of walking wheels are installed on the lower bottom face of the supporting base, and the walking wheels are in movable contact with the inner annular track, the outer annular track and the standby track. A sliding groove is formed in the middle of the upper top face of the supporting base, the hydraulic column is arranged on the supporting base through the sliding groove, the upper end