The utility model discloses a press operation ware, including the axle bed, wear to be equipped with the main shaft on the axle bed, follow the left hand right side on the main shaft and wear to be equipped with gear and tensioning spring in proper order, install the rack that sets up with gear engagement in the mount pad, the rack upper end is inserted and is established on the axle bed, the rack lower extreme is through round pin first pull rod of hub connection and second pull rod, the one end that the main shaft is close to the gear is equipped with the cam, the cam passes through straight key joint with the main shaft, the parallel key sets up along the main shaft axial, joint key is connected to the cam, joint key sets up on the bent axle, the one end that the main shaft is close to the cam is equipped with one section external screw thread, be equipped with a plurality of not hard up lock nut of cam that prevent on the external screw thread. The utility model discloses job stabilization, operation safety, long service life.