Vertical turning and boring composite machine tool

The vertical type turning and boring composite machine tool comprises a supporting plate, a top shell and a side shell, the top shell and the side shell are fixed to the top of the supporting plate, a servo motor is fixed to the inner wall of the top shell, a fixed shell is fixed to the power output end of the servo motor, and an alternating current motor is fixed to the inner wall of the fixed shell through a supporting rod; a transmission rod is fixed to the power output end of the alternating current motor, a sliding plate is fixed to the end of the fixed shell, a plurality of long frames and a plurality of short frames are fixed to the side face of the sliding plate, eight second bearings are fixed between the long frames, four third bearings are fixed to the ends of the short frames, and a long rotating rod is fixed to the middle of the two second bearings in a penetrating mode. And short rotating rods are fixed in the middles of the third bearings in a penetrating manner. The two pinions synchronously r