Ball pin machining numerical control machine tool

The invention relates to a ball pin machining numerical control machine tool. A spindle box, a tool rest saddle assembly, a tailstock sliding device and a B-axis and U-axis mechanism are arranged on the upper surface of a machine tool body. The spindle box is fixedly connected to the lathe bed, the tailstock sliding device is in sliding connection with the lathe bed through the W-axis transmission system, and a workpiece is clamped between a hydraulic chuck of the spindle box and a tailstock tip. The B-axis and U-axis mechanism is located on one side of the periphery of the workpiece and connected with the lathe bed through the B-axis saddle assembly, the B-axis saddle assembly moves in the X2 direction, and the rotation axis of the B-axis and U-axis mechanism is perpendicular to the rotation axis of the electric spindle; and a cutter is arranged at the other end of the workpiece and transversely moves in the Z1 direction through the tool rest and saddle assembly and the Z1-axis transmission system. The ball