Double-sided perforating machine

The utility model discloses a two-sided perforating machine, including support plate, box, connecting box, cover plate and telescopic hydraulic cylinder, the top end face of support plate is fixedly connected with the box, the connecting box is installed on the two side plate of the box in threaded penetration respectively, the connecting box is in threaded connection with the cover plate, the cover plate is in threaded connection with the telescopic hydraulic cylinder, and the telescopic hydraulic cylinder is in threaded connection with the cover plate. And a telescopic hydraulic cylinder is fixedly mounted on the outer surface of the inner side of the cover plate. Corresponding to-be-punched plastic parts are placed on the air springs, the plastic parts of different shapes or dimensions can be clamped conveniently through the stretching degrees of the multiple air springs at different depths, the working application range of the double-face punching machine is effectively expanded, practicability is enhance