快速点磨削工艺参数对磨削振动频率的影响  

Effect of Quick-Point Grinding Technological Parameters on Grinding Vibration Frequency

作　　者：单泉 潘帅 于学荞 马廉洁[2] SHAN Quan;PAN Shuai;YU Xue-qiao;MA Lian-jie(School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;School of Mechanical Engineering&Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学秦皇岛分校控制工程学院,河北秦皇岛066004 [2]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2023年第4期530-535,共6页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51975113);河北省自然科学基金资助项目(E2018501078).

摘　　要：将频率视为一种新的特征参数来分析振动特性.首先提出了振动特征频率提取原理,通过快速点磨削振动特征提取试验获得了特征频率函数,随后分析了加工/空载状态下不同水平的工艺参数对磨削振动的影响,并结合砂轮与工件间的接触和能量传递关系分析了特征频率的变化规律.结果表明,加工特征频率始终小于空载特征频率,特征频率的相对偏差随砂轮线速度的增大而减小,随磨削深度、进给速度的增大而增大,同时比较了各工艺参数对特征频率的影响权重,提出了改善加工效率的思路.In this paper,frequency is regarded as a new characteristic parameter to analyze vibration features.Firstly,the principle of vibration signal feature extraction was proposed,and the characteristic frequency function was obtained through the vibration feature extraction test of quick-point grinding.Then,the influence of different levels of technological parameters on grinding vibration under the machining or idle condition was analyzed.And the variation law of characteristic frequency was analyzed by comparing the contact and energy transfer relationship between the grinding wheel and workpiece.The results showed that the machining characteristic frequency is always smaller than the idle and the relative deviation of characteristic frequency decreases with the increase of the grinding wheel’s linear velocity,and increases with the increase of grinding depth and feed velocity.At the same time,the influence weight of each technological parameter on the characteristic frequency was compared,and the idea of improving the machining efficiency was put forward.

关 键 词：磨削振动 特征频率 工艺参数 快速点磨削 相对偏差 

分 类 号：TH113.1[机械工程—机械设计及理论]