精密卧式加工中心质量匹配设计方法  

Design methodology of mass-matching for precision horizontal machining center

作　　者：薛令军[1] 牛文铁[1] 王俊强[1] 寸花英 

机构地区：[1]天津大学机构理论与装备设计教育部重点实验室,天津300072 [2]沈机集团昆明机床股份有限公司,云南昆明650203

出　　处：《机械设计》2016年第5期1-6,共6页Journal of Machine Design

基　　金：国家科技重大专项基金资助项目(2012ZX04012-031);国家科技重大专项基金资助项目(2013ZX04005-013)

摘　　要：提出了以机床结构件质量作为设计变量,以整机动态性能最高作为设计目标,综合运用试验设计、响应面拟合及多目标遗传算法,实现支撑结构件优化匹配设计的方法。以某卧式加工中心立柱组件为例,验证所提出的方法。结果表明,在组件质量下降412 kg的情况下,首阶固有频率提高2.268%,X向和Y向动柔度分别下降10.032%和6.298%,动态性能提升显著。所提出的质量匹配设计流程与方法为机床整机结构动态性能改进提供了重要的方法和理论依据。The mass of machine structures were selected as the design variables and the best dynamic performance was set the design target. The optimized matching design method of supported structure components was realized according to the use of experiment design,response surface matching and multi-objective genetic algorithm comprehensively. The column components of a precision horizontal machine tool were taken as the example to verify the presented method. The results showed that the first order natural frequency increased by 2.268% and the dynamic stiffness in X and Y direction increased by 10.032% and 6.298%respectively while the column component mass reduced by 412 kg. The dynamic performance improved remarkably. The proposed design process and methodology based on mass-matching method provided an important approach and theoretical basis for the improvement of dynamic performance of machine tool.

关 键 词：立柱组件 质量匹配设计 动态性能 

分 类 号：TH112[机械工程—机械设计及理论]