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平面镜的双面精磨是利用旧机床实现高效精磨的一种新方法。过去,我们对φ46～105毫米的圆形平面镜进行过试验,平行差可达30″,效果良好,已用于生产。但是,对于平行差小于30″的大尺寸平面镜(特别是非圆形平面镜)能否采用双面精磨呢?为此,我们进行了多次试验,取得了一些经验,也成功地投入了生产。我们试件为非圆形平面镜,对角线最大尺寸为210毫米,平行差要求为15″。以前用古典法精磨这种零件,一盘只能胶一个零件,磨好一面翻胶再磨第二面,在磨第二面时还要用手压平行。一个有经验的师傅,一次最多也只能看两个轴,一天最多出6～7块零件。改用双面精磨后,一个轴一次可磨4
Flat mirror double-sided grinding is the use of the old machine to achieve a highly efficient grinding of a new method. In the past, we tested round flat mirrors of φ46 to 105 mm with a difference of up to 30 “in parallel, which has been used in production. However, for large flat mirrors (especially non-circular mirrors) with parallel differences of less than 30” Can we use double-sided grinding? To this end, we conducted a number of tests, gained some experience, but also successfully put into production. Our specimen is a non-circular mirror with a maximum diagonal size of 210 mm and a parallel difference of 15 ". In the past, the classical method was used to grind this kind of part. Only one part can be glued on one plate. The second side, while grinding the second side but also by hand pressure parallel.A experienced master, at most can only look at two axes, a day up to 6 ~ 7 parts.To double-sided grinding, A shaft can be worn 4 times