数控轧辊磨床圆柱度三点测量原理及仿真分析  

Three-Point Measurement Principle and Simulation Analysis of Cylindrical Degree of CNC Roll Grinding Machine

作　　者：曾祥礼 吴怀超[1] 赵丽梅[1] 杨绿[1] ZENG Xiangli;WU Huaichao;ZHAO Limei;YANG Lyu(School of Mechanical Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学机械工程学院,贵阳550025

出　　处：《组合机床与自动化加工技术》2024年第1期29-33,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：贵州省科技重大专项项目(黔科合重大专项字[2019]3016号);贵州省高等学校重点实验室项目(黔教技[2023]009号);贵州大学培育项目(贵大培育[2019]02号)。

摘　　要：针对数控轧辊磨床圆柱度离线式两点法不能参与程序运算,难以将测量过程中产生的多种误差分离出来的问题,提出一种三点圆柱度误差分离的方法。该方法将误差分离技术(EST)应用到轧辊圆柱度测量上,并基于MATLAB平台建立了该方法的数学模型。为验证该三点法的优势,预设10个轧辊截面轮廓进行误差分离仿真并分析。结果表明,三点圆柱度测量法能参与程序运算,有效分离出轧辊各截面圆度误差、各截面之间的半径差、各截面最小二乘圆心初始位置同时还可以分离出回转轴的回转误差和直行导轨的直行运动误差,为进一步实现轧辊圆柱度的精密测量打下基础。Aiming at the problem that the off-line two-point method of cylindricality of CNC roll grinding machine cannot participate in program calculation,and it is difficult to separate a variety of errors generated in the measurement process,a three-point cylindricity error separation method is proposed.This method applies the error separation technology(EST)to the measurement of roll cylindricality,and establishes a mathematical model based on the MATLAB platform.In order to verify the advantages of the three-point method,10 roll cross-section profiles were preset for error separation simulation and analysis.The results show that;The three-point cylindrical measuring method can participate in the program calculation,effectively separate the roundness error of each section of the roll,the radius difference between each section,and the initial position of the minimum squares center of each section,and at the same time can also separate the rotation error of the rotary shaft and the straight motion error of the straight guide rail,laying a foundation for further accurate measurement of the cylindrical degree of the roll.

关 键 词：数控轧辊磨床 三点法误差分离 圆柱度误差 直行误差 

分 类 号：TH161[机械工程—机械制造及自动化] TG66[金属学及工艺—金属切削加工及机床]