Safe numerical control punching machine

The utility model relates to the technical field of numerical control punching machines, in particular to a safe numerical control punching machine which comprises a base, the upper surface of the base is connected with a lower die in a sliding mode, the upper surface of the base is fixedly connected with a supporting frame, the inner wall of the supporting frame is fixedly connected with a first oil cylinder, and the output end of the first oil cylinder is fixedly connected with a connecting plate. The lower surface of the connecting plate is fixedly connected with an upper mold, the lower surface of the connecting plate is provided with a correcting mechanism which enables the lower mold and the upper mold to be kept in an aligned state, and the lower surface of the lower mold is provided with a correcting groove. According to the safe numerical control punching machine, by arranging a driven plate, an upper die can drive a driving rack to move downwards in the punching process, then an outer frame and a co