文章利用相关公式计算光学玻璃的临界磨削深度,以及工件速度、砂轮速度、磨粒粒度、磨削深度等对它的影响,分析利用MK9025曲线磨床在延性域状态下加工非球面或者球面的可能性.然后,采用金属基金刚石微粉砂轮,选择合适的磨削用量,利用MasterCAM自动生成加工程序,在MK9025数控光学曲线磨床上进行椭球面磨削实验,得到了较高的工件尺寸精度和较光洁的表面质量,通过实验验证了利用MK9025数控光学曲线磨床进行非球面光学零件精密磨削的可能性,为实际生产提供了现实依据.%In this paper, by testing the hardness and the fracture toughness of the optical glass, the critical grinding depth of the optical glass can be calculated. The conclusion has been reached that it is suitable to use the MK-9025 curve grinding machine to grind the aspheric surface, though analyzing those influence factors: the maximum grinding depth of a single grain, the speed of the work piece, the speed of the grinding wheel, the granularity between grinding particles and so on. Then, by using the metal-bonded fine grain diamond grinding wheel, choosing appropriate grinding dosage, setting up the processing program automatically by the software MasterCAM, A high bright and clean surface has been obtained in this experiment grinded by MK-9025 numerical control optics curve grinding machine. The above achievement can provide basis for practical production.
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