基于正交试验和灰色关联的铣镗床主轴箱优化设计  

Optimal Design of Large Floor- type Milling and Boring Machine Spindle Box

作　　者：范中廷 武美萍 施健 

机构地区：[1]江南大学机械工程学院,江苏无锡214122

出　　处：《机械制造与自动化》2014年第5期69-73,共5页Machine Building & Automation

基　　金：国家"高档数控机床与基础制造装备"科技重大专项(2010ZX04001-071)

摘　　要：为了提高数控落地铣镗床主轴箱静、动、热态综合性能,主轴箱必须具有良好的结构特性。利用Pro/E和ANSYS建立了主轴箱的有限元模型,分别进行模态分析和热—力耦合分析,以主轴箱结构关键尺寸为设计变量,以主轴箱的一阶固有频率、质量、最大耦合应力、最大耦合变形为目标函数进行了对目标正交优化设计。利用灰色关联分析法获得了优化设计的最佳解,可为主轴箱的结构设计提供参考。In order to enhance a machine tool headstock＇ s comprehensive performances, including static, dynamic and thermal ones, the spindle box must be of perfect design structure. This paper uses Pro/E and ANSYS to work out CNC boring and milling spindle box modeling and make its thermal-mechanical coupling analysis and modal analysis. The headstock＇s mass, the maximum- coupling stress, the maximum coupling deformation, the fist-order natural frequency are taken as objective functions, with the length, the width and the height of the headstock＇s main body as design variables to carry out the multi-objective orthogonal optimi- zation design for the headstock. The best solution of the optimization design is obtained by using grey relational analysis method. The significant reference is offered to structure design of the spindle box.

关 键 词：数控铣镗床 主轴箱 模态分析 热一力耦合分析 正交试验法 灰色关联 

分 类 号：TH133.2[机械工程—机械制造及自动化]