Aero-engine single blade surface roughness detection device

The utility model discloses an aero-engine single-blade surface roughness detection device, which belongs to the technical field of engine single-blade detection and comprises a base plate, the upper end of the base plate is fixedly connected with a rotating seat, the upper end of the rotating seat is provided with a rotating groove, the upper end of the rotating seat is provided with a hinge rod, and the hinge rod is fixedly connected with the base plate. The hinge rod is rotationally connected with the rotating groove, an annular plate is fixedly connected to the outer wall of the hinge rod, a plurality of driving teeth are fixedly connected to the outer wall of the annular plate, a servo motor is fixedly connected to the upper end of the base plate, and a rotating disc is fixedly connected to the output end of the servo motor; by means of the technical scheme, the problems that in the prior art, when the surface roughness of the single blade of the aero-engine is detected, multiple workers need to work in