加工中心立柱系统热态特性分析模型与实验研究  

Thermal Characteristic Analysis Model and Its Experimental Study of Column System for Machining Center

作　　者：杨佐卫[1,2] 殷国富[1] 赵世全[2] 周进[2] 曾令刚[2] 

机构地区：[1]四川大学制造科学与工程学院,四川成都610065 [2]东方汽轮机有限公司,四川德阳618000

出　　处：《机械设计与制造》2013年第9期15-18,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51075287)

摘　　要：在分析加工中心立柱系统主要热源、热汇和热流通路的基础上,根据热源热生成、热阻与热边界条件的经验公式,基于有限元方法建立了加工中心立柱系统热态特性分析模型对其热态性能进行辨识,获得其温度场和热变形,并利用热成像仪与热态特性分析仪通过实验标定机床的温度分布与热位移,修正热边界条件从而获得精度足够的热态特性分析模型,并通过温度控制策略优化加工中心立柱系统的热态性能提高机床的精度,为后续的误差补偿工作提供支撑。Based on main heat sources, heat sinks and heat flow paths of column system for machining center, according to heat generation, heat resistance and the experience formula of thermal boundary conditions, thermal characteristic analysis model was established using FEM to identify its thermal properties, and obtains its temperature field and thermal deformation. The temperature distribution and thermal displacement of machine tool was calibrated using thermal imager and thermal characteristics analyzer. Thermal boundary conditions were corrected to obtain accurate enough thermal characteristic analysis model. The precision of machine tool was improved through thermal performance optimization of column system using the temperature control strategy, and supporting the error compensation step.

关 键 词：加工中心 立柱系统 热态特性 实验验证 

分 类 号：TH16[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]