Rotary part arc trimming algorithm and control system using same

The invention provides a rotary part arc trimming algorithm. The rotary part arc trimming algorithm is characterized by comprising the steps that parameters are initialized; roundness measurement is carried out; a roundness error is evaluated; angular speeds of trimming joints are determined; the motor rotating speed control pulse number which should be input for controlling the motor rotation is obtained, an indexing angle alpha is converted into a control angle of the motor, and then the control angle of the motor is converted into a corresponding motor angle control pulse number; and the motor controls a trimming tool to complete trimming of a workpiece to be trimmed according to the motor rotating speed control pulse number and the motor angle control pulse number. According to the other technical scheme, the invention provides a rotary part arc trimming control system using the rotary part arc trimming algorithm. According to the invention, on the premise that rotary part arc trimming cost is reduced, the roundness error can be rapidly converged; and the rotary part arc trimming algorithm and the rotary part arc trimming control system have the beneficial effects of being low in cost, high in efficiency and intelligentized.