Pipe fitting rotation orienting device and method

The invention provides a pipe fitting rotation orienting device and method. The pipe fitting rotation orienting device comprises a control system; the rotary clamping die mechanism is used for clamping one end of the pipe fitting and driving the pipe fitting to rotate; the notch detection orientation mechanism comprises a linear moving device, a moving platform is arranged on the linear moving device, a guide rail, a fixed seat and a displacement sensor are arranged on the moving platform, a moving seat is connected to the guide rail in a sliding mode, a spring is arranged between the moving seat and the fixed seat, and the moving seat is connected with the displacement sensor; a profiling block is arranged on the moving seat, and a profiling embedding part which corresponds to a notch in the pipe fitting and can be embedded into the notch is arranged on the profiling block; and during detection, the profiling embedding part is propped against the end surface with the notch on the pipe fitting. The position o