The invention relates to an
air compression / hydraulic
punching machine. An integral rack consists of a bottom beam, a top beam and four upright posts of a
machine body, wherein the bottom beam and the top beam are respectively arranged at the bottom part and the top part of the rack, the four upright posts are supported between the bottom beam and the top beam, a
nitrogen compression cylinder is arranged at the upper part of the top beam, a punch is provided with four guide sleeves, the four guide sleeves are respectively sleeved on the four upright posts, and the four guide sleeves can slide on the four upright posts. A
piston and a
piston rod of the
nitrogen compression cylinder are connected to the upper surface of the punch, two one-way hydraulic oil cylinders are arranged on the bottom beam of the
machine body, and
piston rods of the two one-way hydraulic oil cylinders lean against the punch. Hydraulic oil supplied by a hydraulic
station can get in and out of the two one-way hydraulic oil cylinders in the same ratio and the same pressure through a three-position three-way electro-hydraulic
directional valve, and
punching movements of ascending and descending of the punch can be completed by the
air compression / hydraulic
punching machine through piston motions of the two one-way hydraulic oil cylinders and the
nitrogen compression cylinder. An electrical appliance
control system of the
air compression / hydraulic punching machine is provided with two travel switches. The air compression / hydraulic punching machine disclosed by the invention is simple, convenient and flexible in operation method, is small in
mechanical noise and is a comparatively ideal punching device.