TK6926重型落地镗铣床静态、模态、热态性能仿真分析与实验测试  

Simulation analysis and experimental test for static,modal and thermal performances of a TK6926 heavy-duty floor boring and milling machine

作　　者：李殿新 李东晖 刘建勇 冯平法[2] LI Dianxin;LI Donghui;LIU Jianyong;FENG Pingfa(School of Mechanical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,CHN;Department of Mechanical Engineering,Tsinghua University,Beijing 100084,CHN)

机构地区：[1]北京石油化工学院机械工程学院,北京102617 [2]清华大学机械工程系,北京100084

出　　处：《制造技术与机床》2025年第1期173-179,共7页Manufacturing Technology & Machine Tool

基　　金：国家重点研发计划项目(2023YFB4605900);北京市科技新星项目(20230484429);北京石油化工学院致远科研基金项目(2023003)。

摘　　要：以TK6926重型落地镗铣床为对象,采用仿真分析和实验测试相结合的方法研究了其静态、模态、热态性能。建立了TK6926重型落地镗铣床的三维实体模型,添加边界条件后仿真得到了机床的静刚度、固有频率、模态振型、温度场和热变形;搭建了实验系统,测量得到了机床的静态、模态、热态性能参数,并与仿真结果进行了对比。结果表明,机床3个方向静刚度的仿真误差不超过14%,前3阶固有频率的仿真误差不超过15%,关键温度点和3个方向热变形的仿真误差都不超过20%。对大型机床整机静态、模态、热态性能仿真分析与实验测试具有指导意义。TK6926 heavy-duty floor boring and milling machine was taken as the research target,and its static,modal and thermal performances were investigated by combining simulation analysis and experimental test.The three-dimensional solid model of the machine tool was established,and the static stiffness,natural frequency,mode shape,temperature field and thermal deformation of the machine tool were obtained by adding boundary conditions.The experimental systems were set up,and the static,modal and thermal performance parameters of the machine tool were measured and compared with the simulation results.The results show that the simulation error of the static stiffness in three directions of the machine tool is not more than 14%,the simulation error of the first three orders of the natural frequency is not more than 15%,and the simulation errors of the key temperature points and the thermal deformation in three directions are not more than 20%.The paper is of guiding significance for the simulation analysis and experimental testing of static,modal and thermal performance of large machine tools.

关 键 词：静刚度 固有频率 模态振型 温度场 热变形 重型落地镗铣床 

分 类 号：TG65[金属学及工艺—金属切削加工及机床]