精密机床试验台主轴系统的动态特性仿真与分析  

Simulation and Analysis of Dynamic Characteristics of Spindle System of Precision Machine Tool Test Bed

作　　者：袁峰[1] 彭绘舒 秦东晨[1] 李济顺[2] YUAN Feng;PENG Hui-shu;QIN Dong-chen;LI Ji-shun(College of Mechanical Engineering,Zhengzhou University,He'nan Zhengzhou 450000,China;College of Mechanical Engineering,He'nan University of Science and Technology,He'nan Luoyang 471003,China)

机构地区：[1]郑州大学机械与动力工程学院,河南郑州450000 [2]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机械设计与制造》2023年第9期6-9,共4页Machinery Design & Manufacture

基　　金：国家重点研发计划项目子课题-滚动轴承工况引发表面损伤因素及其作用规律研究(2018YFB2000501-01)。

摘　　要：研究主轴系统的动态特性对于提高机床运行的稳定性和加工精度有重要意义。基于Romax采用定量分析法分析了主轴系统的动态特性,研究了定压预紧、定位预紧和工况载荷对主轴系统动态特性的影响,并进行了仿真分析。采用的轴系模型为依据机床设计手册所设计的主轴结构,轴系使用的角接触球轴承为7006C/P4。分析结果表明:定压预紧时轴承寿命较长,定位预紧时轴系刚度提高,主轴系统稳定性更好;在考虑工况载荷影响时,轴系刚度会随着载荷增大而增大,轴承寿命随着载荷增大而缩短。Studying the dynamic characteristics of the spindle system is of great importance for improving the stability and machining accuracy of the machine tool.The dynamic characteristics of the spindle system are analyzed by the quantitative analysis method based on Romax.The effects of constant pressure preload,positioning preload and working load on the dynamic characteristics of the spindle system are studied and carried simulated analysis.The shaft system model adopted is the spindle structure designed according to the machine tool design manual.The angular contact ball bearing used in the shafting is 7006C/P4.The analysis results show that:the bearing life is better under constant pressure preloading,while the shafting stifness and the spindle system stability are improved under constant positioning preload;when considering the influence of working load,as the load increases the shafting stiffness will increase,and the bearing life will shorten.

关 键 词：主轴系统 Romax 动态特性 定压预紧 定位预紧 工况载荷 

分 类 号：TH16[机械工程—机械制造及自动化]