高速龙门五轴加工中心静刚度分析与结构优化  

Static Rigidity Analysis and Structure Optimization of 5-axis Gantry-type Machine Center

作　　者：李焱[1] 张磊[1] 刘春时[1] 尹刚[1] 

机构地区：[1]沈阳机床集团设计研究院,沈阳110142

出　　处：《组合机床与自动化加工技术》2011年第6期9-11,16,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家"高档数机床与基础制造装备"科技重大专项课题(2009ZX04002-012)

摘　　要：静刚度是机床最重要的性能指标之一,在机床设计阶段需对其进行预估。在高速龙门五轴加工中心的设计中,采用有限元分析技术对机床整机及主要部件进行了静力学分析,发现横梁与滑枕为影响整机静刚度的薄弱环节,对横梁与滑枕的结构进行优化改进,从而提高了机床的静刚度,并在实际应用中获得了良好的效果。Static rigidity is one of the most important indicators for machine tools＇ performance,and need to be forecasted in the phase of design.In the design of a high speed 5-axis gantry-type machine center,static force analysis is performed with the help of FEM software for the complete machine and its main components.According to these analyses,the frail parts that impact the rigidity of the whole machine seriously are found and the modifications of structure design are suggested,the validity of which is also proved in real practice.

关 键 词：高速龙门五轴加工中心 有限元分析 静刚度 

分 类 号：TG502[金属学及工艺—金属切削加工及机床]