Punching device for mechanical parts

The utility model provides a mechanical part punching device, and belongs to the technical field of machining. The mechanical part punching device comprises a workbench, a supporting frame, a hydraulic cylinder, a connecting base, a punch, a material containing block, a punching hole, a blanking hole and a discharging groove. The support frame is fixed on the workbench; the hydraulic cylinder is provided with a hydraulic rod, the hydraulic cylinder is fixed to the supporting frame, and the hydraulic rod penetrates through the supporting frame. The connecting seat is connected with the hydraulic rod; the two punches are connected with the connecting seat; two placing grooves are formed in the material placing block, the material placing block is fixed on the workbench, and the material placing block is located below the two punches; the two punched holes are formed in the top of the material containing block, communicate with the containing groove and are opposite to the punches. The two blanking holes are for