Stud butt-welding clamp

The utility model relates to a stud butt-welding clamp which comprises a base and a fixing frame, pneumatic clamps are symmetrically arranged on the two sides of the base, each pneumatic clamp comprises an air cylinder and a shaped plate connected to the output end of the air cylinder, the stud butt-welding clamp further comprises the fixing frame arranged on the shaped plate, and a welding hole site is vertically formed in the surface of the fixing frame. A product positioning block set connected with the upper surface of the base is arranged below the welding hole site, and a product body is placed in the product positioning block set. Compared with existing manual positioning for welding, the stud butt-welding clamp has the advantages that operation can be facilitated, meanwhile, the position of a welding point on the surface of a product can be more accurate, efficiency is improved, accurate splicing of the processed product is facilitated, deviation errors are greatly reduced, the welding requirement of