Auxiliary positioning device for mold base machining

The utility model relates to the field of mold machining, in particular to an auxiliary positioning device for mold base machining. The utility model provides an auxiliary positioning device for mold base processing, which is convenient for a worker to position a mold base part and can quickly assist a mold base to return to a preset position after being disassembled. The auxiliary positioning device for mold base machining comprises a first base and an axis block, and the axis block is arranged in the center of the inner side of the first base; the middle of the axis block is rotationally provided with the double-spiral threaded shaft, threads of the double-spiral threaded shaft are distributed on the double-spiral threaded shaft in a bilateral symmetry mode with the axis block as the center, and the two ends of the double-spiral threaded shaft are each provided with a square block. A worker uses the limiting block to limit the front and back positions of the part on the first base, and then the part is cent