Clamping positioning method and device

The invention discloses a clamping positioning method, and particularly provides a clamping positioning device. The device comprises a standard component and a disc-shaped metal base, and is characterized in that a circular positioning hole is arranged at the center of a circle of the base, four bolt holes connected with a machine tool are uniformly distributed on the base, n T-shaped slots are arranged outwards along the center of the disc to a radius direction, one end of the T-shaped slot, which is close to the center of a circle, is provided with a circular groove, positioning blocks and platens which are matched are distributed on the T-shaped slots, and parts are clamped by bolt fixing.