Automatic spot welding tool for extension line of small power motor

The utility model relates to the technical field of spot welding tools, and particularly discloses an automatic spot welding tool for an extension line of a small power motor, which is high in welding quality and welding efficiency, low in operation difficulty and capable of reducing welding cost. Comprising a positioning plate, and a coil positioning magnet, a wire separation seat, a welding limiting block and an extension line mounting seat which are sequentially distributed on the top surface of the positioning plate, three wire through grooves are formed in the wire separation seat in parallel at intervals; three welding grooves extending in the length direction of the positioning plate are formed in the welding limiting block in parallel at intervals. A wire pressing block is erected between the wire separating seat and the welding limiting block and can swing relative to the positioning plate to press the wire; three extension line through grooves are formed in the extension line mounting seat in parall