离散曲面慢刀伺服车削刀具路径规划  

Cutting Path Plan of Discrete Surface for Slow Tool Servo Turning

作　　者：牛恒泰 康敏[1,2] 何成奎 杨军 Niu Hengtai1, Kang Min1,2 , He Chengkui1,3 , Yang Jun1(1. College of Engineering, Nanjing Agricultural University, Nanjing 210031, China 2. Guanyun Research Institute for Modem Agricultural Equipment, Nanjing Agricultural University, Jiangsu Guanyun 222200, China 3. Dazhou Vocational and Technical College, Sichuan Dazhou 635001, Chin)

机构地区：[1]南京农业大学工学院,南京210031 [2]南京农业大学灌云现代农业装备研究院,江苏灌云222200 [3]达州职业技术学院,四川达州635001

出　　处：《机械科学与技术》2018年第5期721-728,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：江苏省普通高校研究生科研创新计划项目(KYLX15-0565)资助

摘　　要：为解决离散曲面加工的难题,进行了离散曲面慢刀伺服车削刀具路径规划,研究了离散曲面的刀触点生成算法和刀位点生成算法,对比了两种刀位点速度插补算法。提出了基于Zernike多项式局部数据点拟合的刀触点生成方法和Z向刀具形状补偿方法。使用MATLAB软件以环曲面为例进行仿真,验证了该方法的正确性。通过对环曲面和渐进多焦点曲面进行刀具路径规划和加工实验,表明该刀具路径规划方法能够在避免对整个曲面进行拟合的基础上实现离散曲面的高精度加工。To solve the difficulties of discrete surface processing,the cutting path plan for discrete surface was discussed. The generating algorithms of cutting contact points and cutting location points were proposed. The two kinds of velocity interpolation algorithms for cutting location points were compared. A cutting contact points generation method based on the Zernike polynomials using local points data fitting and a Z-direction cutting tools geometry compensation method were proposed. In order to verify the accuracy of the cutting path plan,the MATLAB software was used in simulation of toric spectacle lenses. The cutting path plan and processing experiments for both toric spectacle lenses and progressive-addition lenses proved that discrete surface can be successfully and accurately machined by the proposed method without whole surface points data fitting.

关 键 词：离散曲面 慢刀伺服 刀具路径 环曲面 渐进多焦点曲面 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]