Cold heading center shaft structure of electric bicycle

The utility model discloses an electric bicycle cold heading center shaft structure which comprises a center shaft body, the center shaft body is provided with a frame installation portion, prism-shaped structures are arranged on the two sides of the frame installation portion, a fluted disc fixing portion is arranged between the frame installation portion and the prism-shaped structure on one side, and the fluted disc fixing portion is fixedly connected with a fluted disc. The far end of the prismatic structure is provided with a prismatic table structure corresponding to the prismatic structure, the prismatic table structure is matched and fixed with the crank, each side face of the prismatic table structure is a slope-shaped face, and a slope angle is formed by the slope-shaped face and the central axis of the center shaft body. The problems of unstable quality, poor consistency and environmental pollution caused by error accumulation generated in multi-process turning production in the prior art are solve