Polishing system, self-adaptive polishing device and polishing method for polishing outer raceway of bearing ring

The invention provides a polishing system, a self-adaptive polishing device and a polishing method for polishing an outer raceway of a bearing ring. The bearing ring polishing device comprises a main shaft rotating mechanism, a feeding mechanism, a polishing head and a jacking mechanism, the main shaft rotating mechanism is used for installing a bearing ring to be polished, the output end of the feeding mechanism is connected with the polishing head, a high-pressure flexible abrasive medium is stored in the feeding mechanism, the polishing head is connected with the jacking mechanism, the polishing head is a flexible polishing head, and the jacking mechanism is used for jacking the bearing ring to be polished. The clamping device can be attached to and clamp a workpiece under the action of pressure applied by the jacking mechanism. The high-pressure flexible grinding material and the flexible polishing head act on the surface of the ring raceway, different from traditional fixed grinding material polishing ma