高速铣床主轴系统静动态特性研究  

Research on Static and Dynamic Characteristics of Spindle System of High Speed Milling Machine

作　　者：张元 王丽锋 张津 ZHANG Yuan;WANG Li-feng;ZHANG Jin(School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China)

机构地区：[1]哈尔滨理工大学机械动力工程学院,哈尔滨150080

出　　处：《哈尔滨理工大学学报》2021年第1期52-58,共7页Journal of Harbin University of Science and Technology

基　　金：黑龙江省自然科学基金(E201444).

摘　　要：主轴系统性能对加工精度、质量等影响较大,因此在设计时必须进行静、动态特性研究。为了研究主轴系统静、动态特性,建立了主轴系统三维模型,采用有限元方法对其进行分析得到变形量、应力应变、固有频率及振型,并分析了轴承支撑刚度变化所带来的影响,最后进行实验研究。结果表明,随着轴承支撑刚度的增加变形量逐渐降低、固有频率逐渐升高;共振区间在815.86 Hz附近,不会引发共振;通过实验发现误差小于10%,验证了仿真结果的可靠性,为后续研究提供了有利依据。The performance of the spindle system has a great impact on machining accuracy and quality,so static and dynamic characteristics must be studied during design.In order to study the static and dynamic characteristics of the spindle system,a three-dimensional model of the spindle system was established.The finite element method was used to analyze it to obtain the deformation,stress and strain,natural frequency and mode shape,and the impact of the change in bearing support stiffness was analyzed.Finally,experimental research is carried out.The results show that with the increase of bearing support stiffness,the amount of deformation gradually decreases and the natural frequency gradually increases;the resonance interval is around 815.86 Hz,which does not cause resonance;the error is found to be less than 10%through experiments,which verifies the reliability of the simulation results.Subsequent research provided a favorable basis.

关 键 词：主轴系统 静态特性 动态特性 支撑刚度 实验研究 

分 类 号：TH113.1[机械工程—机械设计及理论]