Grinding device for inner raceways and lock openings of bearings and grinding method

The invention discloses a grinding device for inner raceways and lock openings of bearings and a grinding method, which relate to the bearing ring grinding technology. By the aid of the grinding device and the grinding method, an inner raceway and a lock opening of a bearing are simultaneously machined and molded on the same grinding machine, and a shaft X actuates workpiece feeding; a shaft X1 actuates compensation during trimming of a grinding wheel; a shaft B actuates trimming of a curvature radius, which is required by grinding of the inner raceway, of the grinding wheel; a shaft Y actuates trimming of a straight line, which is required by grinding of the inner lock opening, of the grinding wheel; a shaft B1 is used for manually adjusting the size of an angle of the lock opening of a workpiece; a diamond pen rotates by the aid of rotation of the shaft B, and trimming of the curvature radius, which is required by grinding of the inner raceway, of the grinding wheel is realized; and then the shaft B is lock