Clamping device for precision metal part machining

The utility model relates to the technical field of precision metal part machining, in particular to a clamping device for precision metal part machining, which comprises a connecting frame, the left side of the connecting frame is fixedly connected with a first bottom frame, the surface of the first bottom frame is fixedly connected with a first side frame, and a first rotating seat is arranged in the first side frame. Clamping arc grooves are evenly formed in the side face of the first rotating base, and clamp bases are movably connected into the clamping arc grooves. Through the arrangement of the connecting frame, the first bottom frame, the first side frame, the first rotating seat, the clamp seat, the second side frame, the second rotating seat and the clamping and fixing ball seat, the precise metal part machining clamp can be rapidly switched and used; a worker firstly integrally and stably adjusts the second rotating seat to the distance matched with the first side frame, and then the multiple sets o