Structure Improvement and Optimization of Gantry Milling System for Complex Boring and Milling Machining Center  

作　　者：Zhongxin Zang Qilin Shu 

机构地区：[1]School of Mechanical Engineering,Shenyang Ligong University,Shengyang 110159,China [2]Liaoning Provincial Key Laboratory of Advanced Manufacturing Technology and Equipment,Shengyang 110159,China [3]School of Mechanical Engineering and Automation,Shenyang Institute of Technology,Fushun 113000,China

出　　处：《Journal of Electronic Research and Application》2023年第5期1-7,共7页电子研究与应用

摘　　要：To enhance the efficiency and machining precision of the TX1600G complex boring and milling machining center,a study was conducted on the structure of its gantry milling system.This study aimed to mitigate the influence of factors such as structural quality,natural frequency,and stiffness.The approach employed for this investigation involved mechanism topology optimization.To initiate this process,a finite element model of the gantry milling system structure was established.Subsequently,an objective function,comprising strain energy and modal eigenvalues,was synthesized.This objective function was optimized through multi-objective topology optimization,taking into account certain mass fraction constraints and considering various factors,including processing technology.The ultimate goal of this optimization was to create a gantry milling structure that exhibited high levels of dynamic and static stiffness,a superior natural frequency,and reduced mass.To validate the effectiveness of these topology optimization results,a comparison was made between the new and previous structures.The findings of this study serve as a valuable reference for optimizing the structure of other components within the machining center.

关 键 词：Machining center gantry milling system structure Natural frequency STIFFNESS Multi-objective topology optimization 

分 类 号：TG6[金属学及工艺—金属切削加工及机床]