High-precision turning and milling composite rotary table

The invention provides a high-precision turning and milling composite rotary table, and relates to the technical field of machine tool rotary tables, the rotary table comprises: a sliding seat, the interior of the sliding seat is provided with a cavity, and the sliding seat is used for being installed on a machine tool body; the supporting sleeve is connected to the interior of the cavity; an inner rotating body of the bearing assembly is connected to the outer side of the supporting sleeve; a stator of the torque motor is connected to the inner side of the supporting sleeve, a rotor of the torque motor is connected with an outer rotating body of the bearing assembly, and a cooling groove is formed between the stator of the torque motor and the inner side of the supporting sleeve; the workbench is rotationally connected to the top of the cavity, and the workbench is connected with the outer rotating body of the bearing assembly; the water cooling loop system is communicated with the cooling tank; and the oil