Punching machine

The utility model discloses a punching machine, including pneumatic cylinder, the annex that punches a hole, frame, hydraulic power unit, control section, the frame cross section is C shape, and the top surface of frame is provided with the pneumatic cylinder mounting hole, inside the top surface and frame of pneumatic cylinder mounting hole intercommunication C shape frame, the pneumatic cylinder is installed in the pneumatic cylinder mounting hole of frame top surface, and the pneumatic cylinder sets up at least two, the annex that punches a hole includes drift, base, and the drift is installed at the pneumatic cylinder telescopic link terminally, the pedestal mounting on the frame bottom surface, at least one drift of installation on every pneumatic cylinder, hydraulic power unit, hydraulic power unit connection control part are connected to the pneumatic cylinder. The control circuit is advantaged by high efficiency. Easy maintenance, but change sealedly and punch a hole the operation of annex single cylinder, the precision is high, and the pitch -row can be set for at will, the good reliability, because of on the stamping press in a plurality of holes decomposes a plurality of pneumatic cylinders, hydraulic power unit and pneumatic cylinder have sufficient power reserve, and the intensity of equipment, rigidity require lowly, the difficult condition of interfering of appearing.