Perforating device for automobile shafts

The utility model discloses an automobile shaft punching device which comprises a workbench, the top of the workbench is fixedly connected with a concave frame, the center of the top of an inner cavity of the concave frame is fixedly connected with an electric air cylinder, the telescopic end of the electric air cylinder is fixedly connected with a connecting plate, and the bottom of the connecting plate is fixedly connected with a first motor. The output end of the first motor is fixedly connected with a drill bit, the right side of the top of the workbench is fixedly connected with a driving box, the back face of an inner cavity of the driving box is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a threaded rod, and the front face of the threaded rod is rotationally connected with the front face of the inner cavity of the driving box through a bearing. According to the punching device for the automobile shaft workpieces, the electric air cylinder, the con