Clamping device for high-precision machining of automobile expansion valve body

The utility model discloses a clamping device for high-precision machining of an automobile expansion valve body. The clamping device comprises a rotating base and a clamping device body installed above the rotating base. The clamping device comprises a main fixing base used for fixing the expansion valve body and an auxiliary fixing base used for fixing an outflow pipe of the expansion valve body. The clamping assemblies are installed on the two sides of the main fixing base, and the auxiliary fixing base is installed on one side of the main fixing base. An auxiliary clamping assembly is arranged on the inner wall of the auxiliary fixing seat, and the expansion valve body is fixed through the main fixing seat and the auxiliary fixing seat. The expansion valve body clamping device is simple in structure, an expansion valve body is clamped and fixed through the telescopic air cylinder, auxiliary clamping is achieved through the auxiliary clamping device, connection is stable, independent machining can be achie