微透镜阵列快刀伺服车削进刀路径生成与优化研究  

Generation and optimization of the tool path for fast tool servo turning of microlens arrays

作　　者：丁焕琪[1] 罗善明[1,2,3] 常雪峰 谢丹[2,3] 舒霞云[2,3] 

机构地区：[1]湖南科技大学机电工程学院,湘潭411201 [2]厦门理工学院机械与汽车工程学院,厦门361024 [3]精密驱动与传动福建省高校重点实验室,厦门361024

出　　处：《现代制造工程》2016年第7期61-66,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51375411,51475400);福建省自然科学基金项目(2016J01269);福建省高校产学合作项目(2016H6027)

摘　　要：微透镜阵列作为一种非轴对称的复杂光学曲面,对轮廓精度及表面粗糙度的要求都非常高,在快刀伺服车削加工过程中,刀具补偿及其轨迹规划是非常重要的环节。首先介绍了刀具加工路径生成的基本流程,根据刀尖圆弧与工件曲面之间的几何关系,推导了刀位点坐标的计算公式;然后针对微透镜开口轮廓边缘区域,讨论了过渡区及其宽度和分布情况;最后提出了过渡区刀尖半径补偿优化算法,并基于MATLAB软件进行了加工仿真。结果表明提出的刀具路径优化方法能够有效提高微透镜轮廓边缘的加工精度。Microlens array is a kind of complex and non-axisymmetric optical surface, so the contour accuracy and the roughness is given a high demand. In the process of fast tool servo machining, the tool radius compensation and generation of tool path is im- portant stage. Firstly, the basic procedure of generation of the tool path is introduced, according to the geometric relation between tool arc and surface of workpiece, the calculation formula of the cutter point is derived. Secondly, based on the edge of the contour, the width and distribution of the transitional zone are discussed. Finally, optimization algorithm of tool radius compensation in transitional zone is proposed. Make the machining simulation based on MATLAB software. The results show that the proposed optimization algorithm of tool radius compensation can improve the machining precision of the edge of the contour.

关 键 词：微透镜阵列 快刀伺服 刀具路径生成 刀具路径优化 

分 类 号：TH161[机械工程—机械制造及自动化]