Rotating supporting device for rotating shaft machining

The utility model discloses a rotating supporting device for processing a rotating shaft, which relates to the technical field of machining and comprises a bottom plate, a vertical plate is arranged on the left side of the bottom plate, a rotating positioning part is arranged above the vertical plate, a stop handle is arranged on the left side of the rotating positioning part, and the rotating positioning part comprises a positioning turntable, a rotating support, a long rod and a connecting block. A clamping limiting part is arranged on the right side of the vertical plate and comprises a clamping support and a rotating frame. The rotating shaft clamping device is compact in overall design structure and convenient to machine and assemble, the rotating shaft can be conveniently positioned and clamped on a workbench through the design of the rotating positioning part and the clamping limiting part, the machining precision and efficiency are improved, the rolling wheels are arranged between the clamping support