Clamping device of planet carrier

The invention discloses a clamping device of a planet carrier, and belongs to the technical field of machining. The clamping device of the planet carrier comprises a workbench, a supporting assembly,a clamping assembly, a pressing assembly and a tensioning assembly, the supporting assembly is arranged on the workbench and used for supporting the planet carrier; the clamping assembly can slide inthe radial direction of the supporting assembly and is used for clamping an outer circle; the pressing assembly can slide in the radial direction of the supporting assembly and can press the top faceof lightening holes; and the tensioning assembly is fixed to the supporting assembly and can tension a threaded hole. According to the clamping device for the planet carrier, through the clamping assembly, the pressing assembly and the tensioning assembly, the positions of the clamping device are adjusted, so that the clamping device can give consideration to various machining procedures, is suitable for structures and size