Auto parts welding jig

The utility model discloses an auto parts welding jig relates to the automobile spare and accessory part welding technique field, including the bottom plate, the both sides of bottom plate are equipped with the cylinder binding clasp, are equipped with the clamp plate on the cylinder binding clasp, and the one end of clamp plate is connected with the top of cylinder binding clasp is articulated, still is equipped with the connecting plate above the bottom plate, is equipped with the bolt lag between connecting plate and the bottom plate, the intermediate formation passageway of bolt lag, and the bottom of bolt lag is equipped with the spring catch, and the spring catch passes the bolt lag and its one end stretches into in the passageway. The utility model discloses respectively increase aspring catch in bolt lag lower part, if the bolt is short partially, the bolt can't push up the conical surface of spring catch, and the spring catch just can't stretch out, operates the workman thismoment and just can find t