Flat welding device of storage battery polar group

The utility model discloses a flat welding device of a storage battery polar group. The device comprises a fixing template, a bracket and a positioning block, wherein the bracket consists of a pedestal, side posts and cross beams; the side posts are fixed to the two sides of the pedestal; the cross beams are arranged at the top ends of the side posts; a plurality of comb tooth-shaped busbar mold cavities are formed in the fixing template; the two ends of the fixing template are fixed to mold beams of the bracket; the positioning block is fixed to the pedestal of the bracket; a plurality of positioning grooves are formed in one side of the positioning block; the positioning grooves are vertically matched with the busbar mold cavities one by one. The device is simple in structure and high in practicability, a polar group is vertically placed, positioned and welded, and inclination of the polar group is avoided, so that the quality of a product is guaranteed.