摘要
龙门加工中心主轴滑枕结构是连接刀具和机床的一个重要部件,其受切削力和受热变形将直接影响刀具的加工精度。通过建立龙门加工中心主轴滑枕结构的有限元分析模型,在计算热源发热量以及主轴滑枕结构热边界条件的基础上,利用ANSYS有限元分析软件在其工作状态下进行切削力变形分析、稳态热变形分析以及热-结构耦合分析。得到了主轴不同转速条件下主轴滑枕结构热态性能及刀盘直径方向变形规律,为该型龙门加工中心主轴滑枕结构优化设计和热变形补偿提供了理论依据。
Gantry Machining Center＇s spindle ram structure is a key part that connects the machining tools and the machine tool,its deformation under machining force and heat condition directly affects the machining accuracy of machining tools.Based on the establishment of the spindle ram structure finite element analysis model,and the calculation of heat and the heat structure of the spindle ram structural thermal boundary conditions,ANSYS finite element analysis software is introduced to proceed machining force deformation analysis,steady-state thermal analysis and thermo-structural analysis under working conditions.Thermal properties of the spindle ram structure and deformation of the tool block＇s diameter direction is obtained,theoretical basis for the gantry machining center spindle ram structural optimization and thermal deformation compensation is provided.
出处
《组合机床与自动化加工技术》
北大核心
2011年第6期12-16,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
"高档数控机床与基础制造装备"国家科技重大专项(2009ZX04002-013)
中央高校基本科研业务费(2009SCU11086)
关键词
主轴滑枕结构
有限元分析
动载荷受力分析
热变形分析
spindle ram structure
finite element analysis
dynamic load stress analysis
thermal deformation analysis
