Drilling machine punching lifting device

The utility model discloses a drilling machine punching lifting device which comprises a bottom plate, the top of the bottom plate is fixedly connected with two fixing rods, the interiors of the two fixing rods are both fixedly connected with limiting plates, the interiors of the two limiting plates are jointly connected with a sliding plate in a sliding mode, the bottom of the sliding plate is fixedly connected with a protective cover, and the protective cover is fixedly connected with the bottom of the bottom plate. A motor is fixedly connected to the interior of the protective cover, and a drill bit is fixedly connected to one end of an output shaft of the motor. When the drilling device is used, the motor can drive the drill bit to rotate at a high speed to complete drilling work, the two sleeve shafts move left and right outside the two-way threaded rod by rotating the two-way threaded rod, the sliding plate moves up and down along the interiors of the two limiting plates under the linkage of the two con