基于多场耦合联合仿真稀土电解机械手的优化  

Optimization of rare earth electrolysis manipulator based on multi-field coupling co-simulation

作　　者：孙明明 唐焱[1] 梁冰 邵留宝 SUN Mingming;TANG Yan;LIANG Bing;SHAO Liubao(School of Mechanical and Electronical Engineering,Guilin University Of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2024年第3期310-315,共6页Journal of Guilin University of Electronic Technology

基　　金：广西科技计划(桂科AD18126024)。

摘　　要：针对稀土熔盐电解生产中高温熔融金属提取技术存在的问题,设计了一种提锅式机械手,运用仿真软件分析机械手提取坩埚时的受力和形变。在SolidWorks环境下构建机械手仿真模型,对通讯接口作兼容处理,导入COMSOL Multiphysics软件;依据镨钕合金生产工艺规程确定试验边界;以力矩电机驱动螺母移动的距离为控制量,在满足机械手提取坩埚的应力和形变的前提下,对机械手提取坩埚过程进行联合仿真,获取合适机械手夹持杆尺寸。仿真结果表明,当机械手夹持杆直径为22 mm,满足需用夹持力时,最大应力约为9×10^(7)N·m^(-2),夹持杆下部高温形变约为4.7 mm;夹持爪与坩埚接触无形变时,夹持杆与高温熔液液面接触处的形变约为5.2 mm,其中高温形变约为2.5 mm,横向力形变约为2.7 mm,夹持杆与连接杆连接处的形变约为7.75 mm,机械手设计参数满足工作要求。Aiming at the problems of high-temperature molten metal extraction technology in the production of rare earth molten salt electrolysis,a pot-lifting manipulator was designed,and the force and deformation of the manipulator were analyzed by using simulation software.The simulation model of manipulator was built under SolidWorks environment,and transferred into the COMSOL Multiphysics software,the communication interface is compatible.According to the production process of Pr-Nd metal,the test boundary was determined.Taking the distance of nut driven by torque motor as the control variable,the process of extracting crucible by manipulator was co-simulated,under meeting the requirements of the stress and deformation of the manipulator extracting the crucible,the appropriate size of the manipulator clamping rod was obtained.The results show that when the diameter of the gripping rod of the manipulator is 22 mm,which can meet the required gripping force,the maximum stress is about 9×10^(7) N·m^(-2),the deformation of the lower part of the clamping rod under high temperature is about 4.7 mm,and when the clamping claw contacts the crucible,the deformation of the contact area between the clamping rod and the high temperature liquid level is about 5.2 mm.The deformation caused by high temperature is about 2.5 mm,the deformation caused by transverse force is about 2.7 mm,and the deformation at the joint of clamping rod and connecting rod is about 7.75 mm.The design parameters of the manipulator can meet the working requirements.

关 键 词：稀土氧化物 电解还原 联合仿真 机械手 优化设计 

分 类 号：TP241.2[自动化与计算机技术—检测技术与自动化装置]