传统环抛加工一般将工件整个包围在抛光盘内,加工之后虽然可以获得较好的工件表面,但是需耗费较多的时间,生产效率较低。针对这种情况,借助PPS快速抛光机床,依据Preston公式,对露出抛光盘的工件部分,即对所谓的边缘效应进行研究,用新的表面模型表示非线性压强分布,合理地避开了线性模型造成的压强负值问题。并且对工件材料去除量进行仿真计算,建立了新的去除模型,得出了偏心距、工件半径和抛光盘转速比值对材料去除量的影响。根据此模型,选择适当的偏心距和转速比对工件进行加工,可获得较好面型。 Conventional ring throwing generally surrounds the entire workpiece in the polishing disc. Although the workpiece surface can be obtained after processing, it takes more time and the production efficiency is lower. In view of this situation, with PPS fast polishing machine tool, according to Preston formula, the part of the workpiece that exposes the polishing disc, namely the so-called edge effect is studied. The new surface model is used to represent the nonlinear pressure distribution, which reasonably avoids the linear model Negative pressure caused by the problem. And the removal of the workpiece material was simulated and a new removal model was established. The effects of eccentricity, workpiece radius and polishing disc rotation speed on material removal were obtained. According to this model, select the appropriate eccentricity and speed ratio of the workpiece processing, get a better shape.