大型结构件镗孔加工颤振检测与改善试验研究  

Experimental study on testing and improvement of machining chatter for large structure components boring process

作　　者：李文霞[1] 杨德云 邓斌 谭飞 张亚勤 Li Wenxia;Yang Deyun;Deng Bin;Tan Fei;Zhang Yaqin(Institute of Mechanical and Electrical Engineering,Taihu University of Wuxi,Wuxi 214064,Jiangsu,China)

机构地区：[1]无锡太湖学院机电工程学院,无锡214064

出　　处：《现代制造工程》2020年第12期105-110,共6页Modern Manufacturing Engineering

基　　金：江苏省高校自然科学研究项目(19KJB460024)。

摘　　要：加工颤振是导致大型结构件加工精度和加工效率低下的重要原因,会导致加工表面质量缺陷,直接影响整机的使用性能。针对实际生产过程中大型结构件孔的镗削加工提出加工颤振检测试验方案,通过模态测试和加工振动测试试验定量分析出各加工系统部件的模态,并且识别出振动源,继而进行加工颤振改善试验研究,定量分析不同辅助支撑方式和夹紧力对加工颤振的影响,得出改善加工颤振简单而有效的解决方案。Machining chatter is an important cause of the low machining accuracy and efficiency of large structure components,which will lead to quality defects of machined surface,and directly affect the performance of the component and the whole machine.Modal test and machining vibration test were experimented for the boring process of large structure component.Modal parameters of the component were quantitatively analyzed and the vibration source was identified.Then,quantitative analysis on the influence of different reinforcement methods and clamping force on the modal was studied to improve the machining chatter,which provides a strong guidance on practical production of large structure component.

关 键 词：加工颤振 模态测试 振动试验 

分 类 号：TH16[机械工程—机械制造及自动化]