Thermal correction device for bearing ring blank and thermal correction method of thermal correction device

The thermal correction device comprises a forging press and a rotary table driving mechanism, a forging platform is arranged on the forging press, a telescopic forging head is installed on the forging press, a workpiece frame is installed under the telescopic forging head, and the rotary table driving mechanism comprises two rotary tables which are installed in a rotating mode. A plurality of rotating discs are arranged on the forging and pressing platform, a plurality of clamping assemblies are evenly distributed and installed on each rotating disc, two sets of clamp driving mechanisms are installed on the forging and pressing platform, and the clamping assemblies can be in linkage with the clamp driving mechanisms in a matched mode so that the contact pressing effect on the side wall of the bearing ring workpiece can be achieved. And the effect is matched with fixed-frequency forging and pressing of the upper forging press, continuous forging of the periphery of the bearing ring workpiece can be formed, the