Milling machine power head convenient for machining inner wall surface

The utility model discloses a milling machine power head convenient for machining an inner wall surface. The device comprises a sliding rail and an operation table, a sliding strip is welded to the top surface of the sliding rail, the surface of one side of the sliding strip is fixedly connected with the operation table through bolts, a mounting seat is fixedly connected to the surface of the operation table above the sliding rail through bolts, a bearing seat is arranged on the surface of the mounting seat, and a power head is rotatably connected into the bearing seat. According to the utility model, driving motor by starting, the output end of the driving motor drives a power head in the bearing seat through a belt; under the driving of a driving motor; polishing ends arranged at the twoends of the power head can rotate synchronously, so that the upper face and the lower face of an inner side cavity of a product are machined at the same time, defects of a machine tool are overcome,machining efficiency is im