机床丝杠热膨胀零点及补偿技术研究  

Research on Thermal Expansion Zero Point and Compensation Technology of Machine Tool Lead Screw

作　　者：刘宏伟[1,2,3] 杨锐 向华[3] 王平江[3] 李波[2] 陈国华[2] LIU Hongwei;YANG Rui;XIANG Hua;WANG Pingjiang;LI Bo;CHEN Guohua(Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle,Hubei University of Arts and Science,Xiangyang Hubei 441053,China;School of Mechanical Engineering,Hubei University of Arts and Science,Xiangyang Hubei 441053,China;School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan Hubei 430074,China;Xiangyang Vocational and Technical College,Xiangyang Hubei 441053,China)

机构地区：[1]湖北文理学院纯电动汽车动力系统设计与测试湖北省重点实验室,湖北襄阳441053 [2]湖北文理学院机械工程学院,湖北襄阳441053 [3]华中科技大学机械科学与工程学院,湖北武汉430074 [4]襄阳职业技术学院,湖北襄阳441053

出　　处：《机床与液压》2021年第12期162-165,共4页Machine Tool & Hydraulics

基　　金：2020年度教师科研能力培育基金-新冠肺炎疫情防控专项(2020kypyfy025);襄阳市科技研究与开发项目(2020ABH001104);“机电汽车”湖北省优势特色学科群资助项目(XKQ2022035);中央引导地方专项(2019ZYYD017;2018ZYYD016);国家科技重大专项(2019ZX04001024)。

摘　　要：机床丝杠在运行时转速很高而且换向频繁,热量不能及时散出而产生很高的温升。丝杠为细长杆,对温度的变化敏感。根据丝杠热误差的产生规律,提出丝杠热膨胀零点的选取方法,建立误差补偿模型。研究机床丝杠热膨胀零点的补偿方法,分析丝杠热膨胀误差的补偿流程;通过补偿实验证明丝杠热膨胀零点对误差建模的意义。When the machine tool lead screw is running,the speed is very high and the change of direction is frequent,so the heat can not be released in time,which results in high temperature rise.As a slender rod,the lead screw is sensitive to the change of temperature.According to the law of thermal error of the lead screw,the selection method of the lead screw thermal expansion zero point was put forward,and the error compensation model was established.The compensation method of the thermal expansion zero point of the machine tool lead screw was studied,and the compensation process of the thermal expansion error of the lead screw was analyzed;the significance of the lead screw thermal expansion zero point to the error modeling was proved by the compensation experiment.

关 键 词：热膨胀零点 温升 机床丝杠 误差补偿 

分 类 号：TH161[机械工程—机械制造及自动化]