Special finish turning machine device applied to turbine generator rotor coupler

The invention belongs to the technical field of turbonator rotor turning, and particularly relates to a special finish turning machine device applied to a turbonator rotor coupler. According to the technical scheme, the special finish turning machine device applied to the turbine generator rotor coupler comprises a foundation platform fixed relative to the ground, a dragging device and a near dragging end cutting unit, a supporting guide rail is arranged on the foundation platform, and a far dragging end cutting unit and two supporting devices are connected to the supporting guide rail in a sliding mode. A rotor is supported on the two supporting devices, the dragging device is connected with one end of the rotor, and the near dragging end cutting unit and the far dragging end cutting unit conduct turning on the rotor. The special finish turning machine device applied to the turbine generator rotor coupler is simple and easy to use, low in assembly difficulty, high in machining precision and high in speed. 本发