内齿轮成形磨削砂轮架振动特性实验研究  

Experimental study on the vibration characteristics of a grinding-wheel-rack for internal gear form grinding

作　　者：苏建新[1,2] 蒋闯 聂少武 程琛[1] SU Jianxin;JIANG Chuang;NIE Shaowu;CHENG Chen(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Henan Collaborative Innovation Center for Advanced Equipment Manufacturing,Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]机械装备先进制造河南省协同创新中心,河南洛阳471003

出　　处：《振动与冲击》2021年第14期100-107,共8页Journal of Vibration and Shock

基　　金：国家自然科学基金(51775171);河南省教育厅科技攻关项目(15A460015)。

摘　　要：为提高内齿轮成形磨齿机砂轮架结构的稳定性,应用有限元对砂轮架进行了模态分析和谐响应分析,得到了磨削头的前6阶振型和固有频率,研究了砂轮架的应力和位移对频率的响应特性。基于响应曲面优化分析法对砂轮架结构参数进行多目标优化,确定最优的结构参数,提高振动特性。在多种磨削工况下对优化前后的磨削头进行振动试验,结构优化后的砂轮架在相同磨削工况下振动加速度比优化前小,磨削头工作稳定性得到明显提高,从而验证了有限元仿真建模和结构参数多目标优化的有效性和工程适用性。In order to improve the structure performance of the grinding head of an internal gear forming grinding machine,the modal analysis and harmonic response analysis of the grinding head were carried out based on the finite element method.The first six modes and natural frequencies of the grinding head,as well as the stress response curve and displacement response curve of the grinding head were obtained.The response surface optimization analysis method was used to optimize the structure of the grinding wheel frame,and the optimal structure size was determined,so as to improve its performance.By observing vibration signals of the grinding head before and after optimization,it is found that the vibration acceleration of the optimized grinding head structure under the same grinding condition is smaller than that before optimization.It is proved that the optimized grinding head structure performance has been improved and the effectiveness of the optimization design is also testified.

关 键 词：成形磨齿 磨削头 砂轮架 振动特性 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3