大口径光学元件, 平面磨削, 砂轮修整及平衡, 在位测量

Ultra precision grinding with diamond wheel is widely used for manufacture of large scale optical lens, especially for deterministic batch processing. This paper presented a surface grinding system based on large-scale NC precision surface grinder(MGK7160) to obtain the high machining accuracy, efficiency and automatic level. Then some key technologies, such as diamond wheel truing, dynamic balance, on-machine measurement, CAM software were detailedly realized. The experiments for 400mm*400mm optical lens using 400# grinding wheel were carried out, and the results well reflect that the developed grinding system based on surface grinding machine can perform precision machining of large-scale advanced optical elements with fine reliability.