Turning device and clamping method for aero-engine with heat-insulation screen bush

The invention discloses a turning device and a clamping method for an aero-engine with a heat-insulation screen bush. A set of clamping and positioning device is designed and manufactured according tothe shape and size of an actual part; secondly, during clamping, a main shaft of a self-made clamping device is firstly clamped on a machine tool, then alignment and fixation are carried out, the repeatability of the clamping can be ensured, and the clamping and positioning stability is good; and finally, the part is clamped on the main shaft, a copper position guide cone is used for positioningand pressing the part, and a screw cap is used for tightening the part through thread connection. According to the device and method, the clamping and alignment are carried out once, the repeated clamping of the part is ensured to be fast and stable, the labor intensity is reduced, the processing efficiency is improved, and the processing quality is guaranteed. 本发明公开了种航空发动机带隔热屏衬套类车加工的装置及装夹方法，先根据实际零件型面和尺寸设计制造套装夹定位装置；其次，在装夹时