Rapid clamping centering tool for large-scale thin-wall barrel parts

The invention provides a rapid clamping centering tool for large-scale thin-wall barrel parts. The clamping centering tool comprises a conical top tire and an elastic expansion tire, wherein the conical top tire is composed of a cylinder and a conical table, the cylinder part is used for being clamped on a lathe, and the conical table is used for supporting the elastic expansion tire through the conical surface part of the conical table; the outer circle of the elastic expansion tire is a cylindrical surface and is used for supporting the thin-wall cylinder parts, the inner type is a conical surface, and the conical surface is used for being matched with the conical table of the conical surface tire; and the peripheral ring of the elastic expansion tire is provided with a plurality of holes, and the adjacent holes are provided with grooves in different positions, so that the elastic expansion tire becomes an elastomer, and the elastic expansion tire is expanded outwards under the pressure of the conical top t