Large-space five-axis aspheric precision polishing machine tool

A large-space five-axis aspheric precision polishing machine tool belongs to the technical field of optical part machining equipment and comprises a rack, a spindle horizontal control unit, a spindle horizontal moving platform, a polishing head lifting unit, a spindle vertical moving platform, a polishing head rotation control unit, a spindle control unit and a workpiece shaft control unit. According to the scheme, the polishing head rotating shaft drives the main shaft to rotate around the X axis, large-angle rotation can be achieved, the main shaft horizontal control unit drives the main shaft to horizontally move in the horizontal direction, the polishing main shaft has a larger working space, and the aspheric degree of an aspheric surface can be machined as large as possible. According to the automatic polishing device, the rotating speed of the polishing head driven by the polishing main shaft motor and the rotating speed of the workpiece driven by the workpiece shaft motor can be adjusted by controlling