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经多年实践和研究,我们发现,原确定透镜粗磨曲率半径的方法缺乏严密的科学性。原方法有两种;一种是按透镜曲率半径R 的大小留有一定的加工余量dR,它是按与R 成正比例关系凭经验确定的,另一种方法是根据透镜矢高再增加或减小0.02mm,再由新矢高确定R_0(粗磨的曲率半径)。对大小和形状不同的五百多个镜面的R、dR、h、dh 经计算后进行分析,发现dh 与h 之比有一定的规律性,即等于某一常数。找出此常数,即可确定为最佳工艺参数值。对所有的五百多个dh/h 值按概率作出分布图,显然,几率最高的数即为最佳工艺参数值。由于原工艺是按实践经验长期摸索而确定的,所以基本上都是行得通的。在此基础上按
After years of practice and research, we found that the original method of determining the radius of curvature of lens rough grinding lacks scientific rigor. There are two original methods; one is based on the size of the lens radius of curvature R left a certain allowance dR, which is based on the proportional relationship with R determined empirically, the other is based on the lens vector and then increase or decrease Small 0.02mm, and then determined by the new vector R_0 (rough grinding radius of curvature). After analyzing and calculating R, dR, h, dh of more than 500 mirrors of different sizes and shapes, we found that the ratio of dh to h has a certain regularity, which is equal to a certain constant. Find this constant, you can determine the best value for the process parameters. For all the more than 500 dh / h values by probability distribution map, obviously, the most likely number is the best value for the process parameters. As the original process is based on practical experience to determine long-term exploration, so basically all workable. Press on this basis