Static pressure rotating table

The invention discloses a static pressure rotating table and relates to the technical field of mirror finishing devices. The static pressure rotating table comprises a base, a rotary table located above the base, a rotating device located on the base and used for rotating the rotary table, a brake device used for stopping the rotary table from rotating, and a fixing device located on the rotary table and used for clamping a mirror surface. An annular limiting ring is arranged on the bottom surface of the rotary table. An annular limiting groove is formed in the outer side of the limiting ring.A second limiting ring matched with the limiting groove is fixedly connected to the base, located in the limiting groove and rotationally connected with the limiting groove. Multiple pressure sensorsare arranged between the second limiting ring and the rotary table. When the rotary table is rotating, the second limiting ring rotates in the limiting groove, and the perpendicularity of a rotary shaft and the rotary table i