Thermal checking clamp for circlip for hole

The utility model relates to a hole circlip thermal check fixture, which comprises a core rod and a clamping assembly, a positioning cambered surface and two positioning grooves are arranged on the outer peripheral surface of the core rod, and the two positioning grooves are symmetrical about the symmetric center line of the positioning cambered surface. The diameter size of the positioning cambered surface is the same as the theoretical diameter size of an inner hole of the circlip for the hole, the positioning groove is composed of two groove side faces which are perpendicular to each other, and one groove side face is perpendicular to the symmetrical center line of the positioning cambered surface. The clamping assembly comprises two pressing plates and an adjusting and locking structure, the two pressing plates are located on the two end sides of the core rod respectively, the adjusting and locking structure can adjust the distance between the two pressing plates so that the two pressing plates can abut a