Fixing tool for polishing bearing ring

The utility model discloses a fixing tool for bearing ring polishing, and relates to the technical field of bearing ring machining. The device comprises a box body, the bottom of the box is rotationally connected with a turntable; a fixed disc is fixedly connected to the peripheral surface of the shaft rod; a sliding disc is slidably connected to the peripheral surface of the shaft rod; the circumferential side of the shaft rod is sleeved with a supporting spring, one end of the supporting spring is fixedly connected with one surface of the fixed disc, the other end of the supporting spring isfixedly connected with one surface of the sliding disc, two connecting rods are hinged to the circumferential side face of the sliding disc through hinged supports, and one end of each connecting rodis hinged to a supporting plate through a hinged support. By means of the design of the shaft rod, the fixed disc, the sliding disc, the supporting spring, the connecting rod, the supporting plate, the pressing cylinder and t