Screwing machine device with adjustable size

The utility model provides a size-adjustable makeup and breakout machine device, and relates to the field of machining. The screwing machine device with the adjustable size comprises a base and a driving motor, one end of the driving motor is fixedly connected with a supporting shaft, a sliding seat is arranged on one side of the top of the base, a hydraulic cylinder is fixedly connected between the sliding seat and the base, and a plurality of pneumatic cylinders and a plurality of arc-shaped plates are arranged in the sliding seat and on the outer side of the supporting shaft. According to the screw-on machine device with the adjustable size, under the cooperation of the lifting pneumatic cylinder and the supporting rotating shaft, two oil casings can be rapidly installed on a screw-on machine composed of the base, the driving motor, the supporting shaft, the multiple pneumatic cylinders, the multiple arc-shaped plates and the sliding base according to needs, the time investment needed for installing the oi