The invention discloses a high-precision compound
machine tool for special-shaped surface
machining, and belongs to the technical field of compound
machine tools, the high-precision compound
machine tool comprises a
machine tool body, a spindle box and a
machining seat are fixedly connected to the interior of the
machine tool body, and a mounting seat is fixedly connected to the side, away from the
machine tool body, of the spindle box. According to the device, a driving motor drives a rotating shaft, a first gear, a fluted disc, a plurality of second gears, a connecting shaft and a lead screw to rotate, a threaded sleeve drives a vertical plate, a connecting base, a connecting plate, a
hydraulic cylinder and clamping bases to move, a to-be-machined workpiece is synchronously mounted and fixed through the multiple clamping bases, and the rapid mounting effect of a machine tool in the using process is effectively improved; when the to-be-machined workpiece is a special-shaped workpiece, the
hydraulic cylinder drives the clamping bases to move, the center positions, relative to the fixing disc, of the multiple clamping bases are adjusted, and then the multiple clamping bases make contact with the surface of the to-be-machined workpiece of the special-shaped workpiece for installation in cooperation with the action of the driving motor. And therefore, the flexibility and the practicability of the machine tool in the using process are effectively improved.