Acceleration and deceleration of grinding in cam based on method of cubic B-spline curve interpolation is weak, which is easy to grind much and insufficiently.According to the mathematic model of cam grinding,the theoretical and practicable speed,acceleration and the differential acceleration of cam’s feed shaft is analyzed.A processing method of forecasting rotational speed of workpiece is proposed,and the rotational workpiece is automatically underspeeded when the speed is rapidly variated.The cam grindin...