Automatic grinding device for double end faces of inner and outer rings of bearing

The utility model discloses an automatic grinding device for double end faces of inner and outer rings of a bearing. The automatic grinding device comprises a rack, a lower-layer grinding mechanism, a shifting mechanism, an upper-layer grinding mechanism and a feeding mechanism, the lower-layer grinding mechanism comprises a lower-layer grinding rotary table, a fixed carrying plate and a first rotary driving mechanism, the material stirring mechanism comprises a second rotary driving mechanism and a material stirring disc, the upper-layer grinding mechanism comprises an upper-layer grinding rotary table, and the feeding mechanism comprises a support, a vertical rod and a fixing piece. The bearing inner rings and the bearing outer rings to be ground are simultaneously placed in the limiting space jointly defined by the vertical rods, the bearing outer rings are stacked, the bearing inner rings are stacked on the inner sides of the bearing outer rings, the bearing outer rings and the bearing inner rings can aut