五轴联动磁流变抛光中双摆轴角度计算

摘要

在光栅线轨迹模式下,曲面工件的磁流变抛光需通过五轴联动来实现,基于自研的PKC-600Q磁流变抛光机床运动轴配置的几何模型,给出了由曲面解析式得到的被加工点的方向余弦,并详细推导两个摆动轴角度的计算方法.该方法易于理解,不依赖CAD/CAM 软件,便于集成到磁流变抛光专用工艺软件中,同时也可以在曲面工件其他方法加工中参考应用.%Processing a curved surface in magneto-rheological finishing (MRF) by raster path, 5-axis machine is necessary. Based on the geometric model of axis distribution in developed PKC-600Q MRF machine, the direction cosine of the finishing point are calculated from the surface expressing, and farther on, with a simple and specific method independent of CAD/CAM software, angles of the two swing axis are also calculated from the direction cosine. The method is easy to integrate in self-developed MRF software. Besides MRF,the method is also suitable for other processing of curved surface.