Motor, manufacturing method of thin-walled base of motor and anti-deformation clamping device

The invention discloses a motor, a manufacturing method of a thin-walled base of the motor and an anti-deformation clamping device. The problems of casting internal stress and machining residual stress of a casting are solved by the aid of an added destressing annealing technology; consistency of a support point and a pressure point during finish machining of the thin-walled base is realized by optimizing the clamping mode, clamping force is uniformly and symmetrically distributed, and base deformation caused by non-uniform clamping force is avoided; base deformation caused by too large cutting force is avoided with a method of optimizing cutting parameters during finish machining to reduce radial cutting force; by means of the three optimization measures, the high-precision requirements that the nodular cast iron base has the seam allowance roundness phi being 0.03 and the seam allowance coaxiality phi within 0.05 are finally met. By means of the scheme, the problem of machining deformation of the thin-walle