Clamping and overturning device for machining

The utility model discloses a clamping and overturning device for machining, and relates to the technical field of machining. The clamping and overturning device for machining comprises a fixing base, the outer wall of the fixing base is rotationally connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a support, a groove is formed in the outer wall of the fixing base, the inner wall of the groove is slidably connected with a clamping block, the outer wall of the rotating shaft is fixedly connected with an opening plate, and the outer wall of the clamping block is fixedly connected with one end of a spring A; one end of the spring A is fixedly connected with the inner wall of the groove, the other end of the spring A is fixedly connected with the inner wall of the groove, the support is provided with a rapid fixing mechanism, the rapid fixing mechanism comprises a concave frame, and the outer wall of the concave frame is fixedly connected with the outer wall of the s