某加工中心滑座的动态特性测试与优化  

Dynamic characteristics testing and optimization of sliding seat for machining center

作　　者：史安娜 刘斯妤 曹富荣 马晓波[2] SHI Anna;LIU Siyu;CAO Furong;MA Xiaobo(School of Mechanical Engineering,Shengyang Ligong University,Shenyang 110159,CHN;Shenyang Machine Tool(Group)Co.,Ltd.,Shenyang 110159,CHN)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159 [2]沈阳机床(集团)有限责任公司,辽宁沈阳110159

出　　处：《制造技术与机床》2018年第9期78-80,85,共4页Manufacturing Technology & Machine Tool

基　　金：高档数控机床与基础制造装备(2012ZX04011021)。

摘　　要：针对立式加工中心滑座的动态特性直接影响整机的加工精度等问题,以某型号加工中心为研究对象,采用有限元分析和试验分析相结合的方法,进行静动态特性分析。利用SolidWork软件进行三维模型的建立,使用Ansys Workbench软件对该加工中心进行动态特性分析,对关键尺寸进行灵敏度分析,选择对滑座性能影响较大的尺寸进行优化设计。采用遗传算法对不同的优化目标进行优化,最终得到优化后的加工中心滑座的前四阶固有频率和总质量有了明显改善,提高了机床加工的精确度。Aiming at the problem that the dynamic characteristics of the sliding center of vertical machining center directly affect the machining accuracy of the whole machine,taking a machine center as the research object,the static and dynamic characteristics are analyzed by combining finite element analysis and experimental analysis.The 3D model is built by SolidWork software.The dynamic characteristics of the machining center are analyzed by Ansys Workbench software,and the sensitivity of the key dimensions is analyzed,and the size that affects the performance of the slide seat is optimized.Genetic algorithm is used to optimize different optimization objectives.Finally,the optimized fourth center natural frequency and total mass of the slider are improved obviously,and the accuracy of machine tool machining is improved.

关 键 词：加工中心 动态性能 优化设计 灵敏度分析 

分 类 号：TH113[机械工程—机械设计及理论]