Auxiliary positioning device for perforating machine

The auxiliary positioning device comprises a working table, a collecting groove is formed in the surface of the working table, a supporting plate is arranged in the middle of the collecting groove, a sliding groove is formed in the outer side of the supporting plate, a first limiting frame is arranged at the bottom of the supporting plate, and first limiting blocks are arranged at the two ends of the first limiting frame. A second limiting frame is arranged at the bottom of the first limiting block, second limiting blocks are arranged at the two ends of the second limiting frame, and a first connecting block is arranged at the bottom of the first limiting frame. The first limiting frame can drive the supporting plate to move in the Y-axis direction in the collecting groove by rotating the first grip, the second limiting frame can drive the supporting plate to move in the X-axis direction in the collecting groove by rotating the second grip, and the position of a workpiece can be changed while the workpiece is