Auxiliary tool for chain wheel high-speed grooving machine

The utility model relates to the technical field of cutting auxiliary tools, in particular to an auxiliary tool for a chain wheel high-speed grooving machine, which comprises a grooving machine tool base, a connecting column, a connecting assembly and a limiting assembly, a chain wheel to be machined is horizontally placed at the upper end of the grooving machine tool base, and a round hole is formed in the center of the chain wheel to be machined. The lower end of the connecting column vertically penetrates through and is inserted into a round hole of a chain wheel to be machined, the connecting assembly comprises a connecting base and a threaded column, a traditional threaded connection type structure is subjected to built-in treatment, pollution is not prone to occurring during machining and use, then the connecting base with a limiting rod is arranged in the tool base of the grooving machine, and machining is convenient. The connecting column is connected with the connecting base to achieve thread pressin