High-precision positioning clamp of precision machining device for special-shaped complex parts

The utility model relates to the technical field of machining, and discloses a high-precision positioning clamp of a precision machining device for special-shaped complex parts, which comprises a base plate, a plurality of positioning seats are arranged on the upper surface of the base plate, each positioning seat comprises a supporting plate, the supporting plates are fixedly connected with the base plate through bolts, and the supporting plates are fixedly connected with the base plate through bolts. Positioning pins are arranged on the upper surfaces of the supporting plates, fixing seats are arranged at the positions, corresponding to the positioning seats, of the base plate, the fixing seats comprise fixing plates, the fixing plates are fixedly connected with the base plate through bolts, two supporting plates are fixedly connected to the upper surfaces of the fixing plates, and the multiple positioning seats are fixed to the base plate according to the positions of positioning holes. The positioning pin