Welding auxiliary system and method for water pump impeller machining

The invention belongs to the technical field of impeller machining, and particularly relates to a welding auxiliary system for water pump impeller machining and an auxiliary method.The welding auxiliary system comprises a mounting base with the bottom provided with four supporting legs and the outer surface of an L-shaped structure, and a guiding sliding groove of a T-shaped structure is formed in the surface of one side of the mounting base; a supporting mechanism used for limiting and clamping the impeller blades is arranged on the inner wall of the guide sliding groove, and a clamping mechanism used for circumferentially limiting the wheel disc is arranged on the upper surface of the mounting base. According to the welding auxiliary system and method for water pump impeller machining, by arranging the clamping mechanism, a servo motor can be controlled to drive a driving gear to rotate, then an operation disc is driven to rotate, a traction rope is twisted along with rotation of the operation disc, and the