环状内外球面智能精密磨削方法与控制模型研究

提出了一种基于法线跟踪的环状内外球面智能精密磨削方法,其原理是:球面球心与工件坐标系原点重合、球面绕坐标系的y轴旋转。在磨削过程中,控制砂轮主轴的摆动角度,使砂轮主轴旋转中心线与球面母线上磨削点的法线始终保持重合。进一步对球面尺寸进行实时检测,对砂轮损耗进行自动补偿,自动完成整个磨削过程。以此方法研制出原型机。研究结果表明,所提出的方法能够用简单的控制模型实现内外球面智能化的精密磨削。

Research on Intelligent Precision Grinding Method and Control Model of Annular Inner and Outer sphere

The intelligent precision grinding method of the annular inner and outer spheres is proposed. Its principle is that the spherical center is located on the origin of the coordinate system, and the sphere rotates around y axis. In grinding process, the swing angle of grinding wheel spindle is controlled so that the center line of spindle and the normal of spherical bus grinding point always remain coincident. The size of sphere is detected in real time, the loss of the grinding wheel is automatically compensated, and the whole grinding process is automatically finished. The prototype is developed using the proposed method. The research results show that the proposed method can effectively realize intelligent precision grinding of the annular inner and outer sphere with simple control model.