Auxiliary propping mechanism for five-shaft rotary machining of blade profile

The utility model provides an auxiliary propping mechanism for five-shaft rotary machining of a blade profile, which can effectively enhance the rigidity of the large aluminum alloy blade in rotary milling, greatly reduce the milled deformation of the profile, and improve the blade profile processing quality. The auxiliary propping mechanism comprises a bottom plate, and is characterized in that the two sides of the bottom plate are respectively provided with a hinge pressing plate and a positioning block, and a spring propping device is arranged on the bottom plate.