Superhard mold finishing tool and preparation method thereof

The invention relates to the technical field of grinding tools, and provides a super-hard mold finishing tool and a preparation method thereof.The super-hard mold finishing tool comprises a grinding disc and further comprises a frame, the grinding disc comprises a plurality of annularly-distributed grinding blocks, a rotating disc capable of rotating is arranged in the frame, and a plurality of rotating bodies corresponding to the grinding blocks are arranged on the periphery of the rotating disc; the grinding blocks are installed on the rotating bodies in a sliding mode, a plurality of first rotating shafts corresponding to the rotating bodies are fixed to the frame, when the rotating disc rotates, the rotating bodies can be driven to drive the grinding blocks to synchronously rotate with the first rotating shafts as the centers, and a plurality of positioning pieces are further arranged on the periphery of the rotating disc. When the grinding block installed on the rotating body rotates and approaches to th