CNC machining clamp for mold insert pin

The utility model discloses a mould insert pin CNC machining clamp which comprises a clamp body, the clamp body and a mould insert pin to be machined are installed on a chuck after being assembled, the clamp body is of a ring sleeve structure, and an opening is formed in a ring sleeve. The opening is in a sawtooth shape; an anti-skid groove is formed in the outer circular wall of the clamp body; a deformation gap is formed in the inner hole wall of the clamp body. Due to the adoption of the structural design of the ring sleeve with the sawtooth-shaped opening, the clamp body can be prevented from being staggered and deformed up and down due to non-uniform stress; an anti-skid groove is formed in the outer circle wall of the clamp body, so that the friction force generated when a chuck clamps the clamp body is increased under the condition that meter calibration is not affected; meanwhile, the deformation gap is formed in the inner hole wall of the clamp body, so that the clamp body and the mold insert pin are