盘式刀库换刀精度测量方法及其变化规律研究  

Research on measuring method of tool change accuracy and its change law of disc tool magazine

作　　者：杨合清 韩军[1] 汪满新[1] 欧屹[1] 管强 冯虎田[1] Yang Heqing;Han Jun;Wang Manxin;Ou Yi;Guan Qiang;Feng Hutian(School of Mechanical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing,210094,China;Jiangsu Suzhou Neway CNC Equipment Co.,Ltd.,Jiangsu Suzhou,215000,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]苏州纽威数控装备有限公司,江苏苏州215000

出　　处：《机械设计与制造工程》2021年第10期13-18,共6页Machine Design and Manufacturing Engineering

基　　金：国家科技重大专项资助项目(2018ZX04039001)。

摘　　要：Yang Heqing 1,Han Jun 1,Wang Manxin 1,Ou Yi 1,Guan Qiang 2,Feng Hutian 1(1.School of Mechanical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing,210094,China)(2.Jiangsu Suzhou Neway CNC Equipment Co.,Ltd.,Jiangsu Suzhou,215000,China)The main function of the disc tool magazine on the machining center is to store and exchange cutters.The accuracy of tool change directly affects whether the tool handle can be inserted into the spindle of the machining center smoothly.In order to study the positioning accuracy of the tool holder in the machining center of the disc tool magazine before inserting tool,before broaching tool and after broaching tool,and their relationship with each other,a positioning accuracy detection method based on the machine coordinate controllability of the machining center and the laser displacement sensor is proposed.Firstly,the mathematical model of the tool holder's center is established,and the calibration of the testing system is carried out with the help of the machine coordinates of the machining center.Secondly,the positioning accuracy of the tool holder at different stages is obtained based on the time series analysis of the measuring data.Finally,the positioning accuracy of the tool holder before inserting tool,before broaching tool and after broaching tool is obtained by a large number of experiments.The changing rule with the number of tool change and the correction amount from insertion to broach and from broach to the center of the handle of broach can provide important basis for the prediction of tool changing performance of tool magazine.

关 键 词：盘式刀库 定位精度 圆心提取 

分 类 号：TG71[金属学及工艺—刀具与模具] TH133[机械工程—机械制造及自动化]