Auxiliary tool for welding nuclear power HDPE (high-density polyethylene) electric smelting saddle

The utility model discloses a nuclear power HDPE (high-density polyethylene) electric smelting saddle welding auxiliary tool which is characterized in that a main gear is arranged at the position, close to the end, of a driving lead screw, a driven gear is arranged at the position, close to the end, of the end of a driven lead screw, teeth of the driving gear are meshed with teeth of a transmission gear, and teeth of the transmission gear are meshed with a gear of the driven gear; the driving screw rod and the driven screw rod are respectively provided with a shear type lifting mechanism, each shear type lifting mechanism comprises a top seat, two symmetrically distributed upper connecting rods, two symmetrically distributed lower connecting rods, two symmetrically distributed screw rod sliding blocks and a base, the lower part of the base is provided with a detachable clamp, and the detachable clamp is fixedly connected with the base through a fastening bolt. The detachable clamp is of an arc-shaped structur