Main reinforcement positioning device of pile reinforcement cage seam welder

The utility model provides a main reinforcement positioning device of a pile reinforcement cage seam welder. The main reinforcement positioning device of the pile reinforcement cage seam welder comprises a base, the supporting structure is fixed to the surface of the base, the supporting structure comprises a supporting frame, a fixing ring, a limiting ring and a tooth groove, and the supporting frame is fixed to the surface of the base; the connecting structure is fixed on the inner side wall of the fixing ring; the fixing structure is mounted on the side wall of the fixing rod; the adjusting structure is mounted in the fixed cylinder; the driving structure is fixed to the side wall of the bottom end of the supporting frame. The main reinforcement positioning device of the pile reinforcement cage seam welder has the advantages that reinforcement cages with different diameters can be conveniently and simply changed and welded, the efficiency is high, the precision is accurate, and the diameter size error of t