Clamping jaw structure for bearing machining

The utility model relates to the technical field of clamping jaw structures, and discloses a clamping jaw structure for bearing processing, which comprises a chuck body, three triangular clamping jaws are uniformly distributed on the chuck body, one surfaces of the three triangular clamping jaws for clamping a bearing are on the same circle, one surfaces of the three triangular clamping jaws far away from the chuck body are respectively connected with an arc clamping jaw, and the arc clamping jaws are connected with the chuck body. The distance between every two adjacent arc clamping jaws is the same, outer arcs of the three arc clamping jaws are located on the same circle, inner arcs of the three arc clamping jaws are located on the same circle, middle arcs are formed between the outer arcs and the inner arcs of the arc clamping jaws, and the sum of the thickness of the inner arcs and the thickness of the middle arcs is the same as the thickness of the outer arcs. The middle arcs of the three arc clamping ja