机床主轴气动加载平台研发及试验研究  

Design and Test of Pneumatic Loading Platform for CNC Machine Tool Spindle

作　　者：张志威 薛瑞娟 蒋峥 王远航[3] 彭翀[1] ZHANG Zhi-wei;XUE Rui-juan;JIANG Zheng;WANG Yuan-hang;PENG Chong(School of Mechanical Engineering&Automation,Beihang University,Beijing 100191,China;National Machine Tool Quality Supervision and Inspection Center,Beijing 100102,China;不详)

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191 [2]国家机床质量监督检验中心,北京100102 [3]工业和信息化部电子第五研究所,广州510610

出　　处：《组合机床与自动化加工技术》2019年第11期30-33,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：2016年工业转型升级项目:电机及伺服驱动装置可靠性解决方案推广应用;2017年智能制造综合标准化与新模式应用项目:数控装备故障信息数据字典标准研制及试验验证

摘　　要：针对数控机床主轴传统加载装置存在的不足,提出一种新型气动加载试验平台并开展主轴可靠性加载试验研究。基于机床铣削动力学模型设计了试验平台机械结构和高压气动加载系统,叶轮作为气动受载部件承受由喷嘴喷出的高压空气流,并将高压空气的压力转换为主轴的负载扭矩,从而实现对主轴的扭矩加载。根据全因子试验设计方法,研究高压空气压强、主轴转速等因子对转矩数据的影响关系,进行加载试验,验证了该气动加载试验平台的优越性。Aiming at the shortcomings of traditional loading device of CNC machine tool spindle,a new test platform for pneumatic loading of CNC machine tool spindle was proposed and the spindle reliability loading test was carried out.Based on dynamic model of machine tool milling,the mechanical structure of this test platform and high-pressure pneumatic loading system were designed.The impeller acted as a pneumatically loaded component to withstand high-pressure air flow emitted by nozzle.High-pressure air flow was converted into torque of spindle motor to realize the dynamic loading of CNC machine tool spindle.According to whole factor experimental design method,the influence of air pressure,spindle speed and other factors on torque data was studied.The superiority of pneumatic loading test platform was verified.

关 键 词：机床主轴 可靠性测试 气动加载 铣削动力学模型 全因子试验设计 

分 类 号：TH122[机械工程—机械设计及理论] TG659[金属学及工艺—金属切削加工及机床]