Fixing device for servo motor shell machining

The utility model discloses a fixing device for processing a servo motor shell, which comprises a fixing platform, a positioning frame arranged on the outer side of the fixing platform, the positioning frame is fixedly connected with the fixing platform, a placing plate is arranged on the inner side of the fixing platform, the placing plate is positioned at the downward concave position of the middle part of the fixing platform, and a clamping plate is arranged on the outer side of the placing plate. The clamping plate is movably installed on the inner side of the fixing platform, a sliding sleeve is arranged at the bottom of the placing plate, the sliding sleeve is rotatably installed on the inner side of the fixing platform, a driving motor is arranged at the bottom of the sliding sleeve, the driving motor is fixed in the fixing platform and connected with the sliding sleeve, and a positioning insertion rod capable of being connected with the positioning plate is arranged on the inner side of the sliding sl