微小柱状非球面模具超精密磨削加工实验研究  

Experimental research on ultra-precision grinding of micro cylindrical aspherical die

作　　者：王贺 张凤 谢飞 WANG He;ZHANG Feng;XIE Fei(Jinken Vocational and Technical College,Jiangsu Underground Space Intelligent Operation and Maintenance Engineering Technology Research and Development Center,Nanjing 211100,Jiangsu,China;Mdtp-Optics Co.,Ltd,Nanjing 211100,Jiangsu,China)

机构地区：[1]金肯职业技术学院地下空间智慧运维工程技术研究开发中心,江苏南京211100 [2]南京迈得特光学有限公司,江苏南京211100

出　　处：《模具技术》2025年第1期41-47,共7页Die and Mould Technology

基　　金：江苏地下空间智慧运维工程技术研究开发中心立项项目“基于红外感测技术的地下火灾预警系统研究(项目编号:jsdxkjzh-2023-36)”。

摘　　要：基于模压成型技术生产的微小柱状非球面光学玻璃透镜制造难度较大,主要制约因素是高精度微小柱状非球面光学模具的面形精度、表面质量难以保证。本文针对典型的高精度微小柱状非球面模具,采用沿砂轮轴向进给、沿圆柱面轴向进给两种磨削方式进行磨削实验,基于以往的加工经验,选定了4组残高分别为5,10,50,100 nm进行磨削轨迹规划,对磨削后的模具表面粗糙度和表面形貌进行测量与评价。结果表明,在磨削参数相同的情况下,两种磨削方式的表面粗糙度都随着残高的减小而减小,其中,沿砂轮轴向进给磨削所形成的模具表面质量更好,当残高为5 nm时,模具获得的表面粗糙度Ra为8 nm。It is difficult to manufacture micro-cylindrical aspherical optical glass lenses based on die-pressing technology,and the main restriction is that the machining difficulty of high-precision micro-cylindrical aspherical optical molds is great.In this paper,two grinding methods of axial feed along the abrasive wheel and axial feed along the cylindrical surface are used for grinding experiments,and four groups of residual height parameters5 are selected The grinding path planning of 10,50,100 nm was carried out respectively to evaluate the surface roughness and surface topography of the grinding mold.The results show that under the same grinding parameters,the surface roughness of the two grinding methods decreases with the decrease of the residual height,and the surface quality of the mold formed by axial feed grinding of the sand wheel is better.When the residual height parameter is 5 nm,the surface roughness Ra of the mold is 8 nm.

关 键 词：超精密磨削 复杂曲面 柱状非球面 表面质量 

分 类 号：TH161[机械工程—机械制造及自动化]