Electrical welding device comprises welding clamp consisting of first series of elastic metal strips enclosing cylindrical volume to maintain pin to be welded to metal sheet, where one end of first strips is fixed to ring

摘要

The electrical welding device comprises a welding clamp (1) consisting of a first series of elastic metal strips (2) enclosing a cylindrical volume to maintain a pin to be welded to a metal sheet. One of the ends of first series of the strips is fixed to a ring (9) connected to a tip (10) of a receiver (11) by a headed nut (12) that surrounds the ring and is screwed on the tip. The headed nut carries a second set of strips (13) on its side opposite to the tip, where the second set of strips surrounds the first series of strips fixed to the ring. The electrical welding device comprises a welding clamp (1) consisting of a first series of elastic metal strips (2) enclosing a cylindrical volume to maintain a pin to be welded to a metal sheet. One of the ends of first series of the strips is fixed to a ring (9) connected to a tip (10) of a receiver (11) by a headed nut (12) that surrounds the ring and is screwed on the tip. The headed nut carries a second set of strips (13) on its side opposite to the tip, where the second set of strips surrounds the first series of strips fixed to the ring. The second strips are shorter than the first strips. A length of the second series of strips is one third to two third of the length of the first series of strips. One end of the second series of strips is fixed to a ring, which is welded to the headed nut. The headed nut is obtained by cutting the strips to shorten the welding clamp comprising the first series of strips that are identical to the second series of strips and by internally reboring the cylinder formed by the second series of strips.