薄壁件三维柔性夹持工装平台设计及FEM分析  

Design and FEM analysis on 3D flexible clamping fixture platform of thin-wall parts

作　　者：张丽 郭巧荣[2] ZHANG Li;GUO Qiaorong(Law School,CAUC,Tianjin 300300,China;College of Aeronautical Engineering,CAUC,Tianjin 300300,China)

机构地区：[1]中国民航大学法学院,天津300300 [2]中国民航大学航空工程学院,天津300300

出　　处：《中国民航大学学报》2019年第5期51-54,共4页Journal of Civil Aviation University of China

基　　金：工业和信息化部民用飞机专项(MJ-2017-Y-77)

摘　　要：薄壁曲面零件加工和装配过程中存在定位难、易变形问题,为此开发一种三维柔性工装定位平台。首先,利用标准模块、定位构件和夹紧构件搭建柔性工装,建立薄壁件三维柔性模块化夹持工装平台实物模型,使其能够对薄壁曲面零件进行定位和调姿。然后,利用有限元软件建立柔性夹持工装平台的静力和自由振动分析模型,系统研究其力学性能。结果表明:柔性夹持工装平台具有足够的刚度和强度,装配工件传递的结构振动不会引起支撑结构的共振。A 3D flexible tooling positioning platform is developed to solve the problems of difficult positioning and easy deformation during the machining and assembling process of curved thin-wall parts.Firstly,the physical and digital models of this 3D flexible platform are built.In order to locate and adjust the orientation of thin-wall surface parts,this platform is composed of high-precision standard modules,positioning parts and clamping parts.Then,the static and free vibration analyzing models of the flexible platform are develped based on commercial finite element software,studying the mechanical properties of the platform.Numerical results show that the flexible clamping fixture platform has sufficient stiffness and strength.The structural vibration transmitted from the assembling units will not cause the resonance of supporting structure.

关 键 词：薄壁曲面零件 柔性夹持 自由振动 有限元分析 飞机装配 

分 类 号：V262.42[航空宇航科学与技术—航空宇航制造工程] TB332[一般工业技术—材料科学与工程]