Automobile hub machining clamp

The utility model relates to the technical field of hub machining, in particular to an automobile hub machining clamp which comprises a supporting structure and a clamp structure, and the clamp structure is arranged at the top of the supporting structure. A bayonet socket is arranged at the top of the base, a supporting rod is arranged at the top of the bayonet socket, and a telescopic rod is arranged at the top of the supporting rod; the clamp structure comprises a mounting base, a fixing plate, sliding grooves, a connecting rod, a rotating ring, a connecting base, a groove and a limiting button, the sliding grooves are formed in the two sides of the outer surface of the top of the mounting base, the fixing plate is arranged at the tops of the sliding grooves, and the limiting button is arranged at the bottom of the side wall of the side, close to the outer side, of the fixing plate; a connecting rod is arranged on the top of the side wall of the side, close to the inner side, of the fixing plate, a connecti