本文介绍了光学冷加工中的一种新工艺——双面精磨与双面抛光,对套环式自由控制双面精磨和抛光工艺的工作原理、零件运动原理、工作装置、加工方法及应注意的问题分别作了阐述。该工艺克服了过去采用单面精磨加工和单面抛光所存在的一些缺点,现已用于生产。实践证明,效果良好,精磨加工比原来提高工效8-10倍;双面抛光比原来提高工效3-5倍,成品率达95％以上。 This paper introduces a new process in optical cold working - double-side and double-side polishing, working principle of free-setting double-side grinding and polishing process, principle of part movement, working device, processing method and application Attention issues were elaborated. The process overcomes the past using single-sided grinding and single-sided polishing some of the shortcomings exist, is now used in production. Practice has proved that the effect is good, the grinding process to improve work efficiency than the original 8-10 times; double polished than the original to improve work efficiency 3-5 times, the finished product rate of 95%.