一种工业机器人支架的轻量化设计与应用研究

Research on the Lightweight Design and Application of an Industrial Robot Bracket

文章结合拓扑优化技术,对某工业机器人支架进行轻量化结构设计优化,以实现零件重量减轻20%以上,同时不牺牲其强度及刚度性能的优化目标。首先利用Hyperworks软件对零件进行了工况荷载、材料属性、设计域的分析,通过对受力荷载路径的重新分布规划,最终得到性能优异的优化结构。最终模型设计完成后,使用选择性激光熔化(Selective Laser Melting,SLM)打印设备进行零件制造,最终优化零件较原零件结构减重20%,强度及刚度性能经CAE分析基本不变,达到了结构轻量化的目的。

This paper optimizes a lightweight structural design of an industrial robot bracket to reduce the weight of the part by more than 20%without sacrificing its strength and stiffness performance combined with the topological optimization technology.First of all,the Hyperworks software is used to analyze the working load,material properties and design domain of the part.Through the redistribution planning of the stressed load path,the optimized structure with excellent performance is finally obtained.The final model design is completed,and the parts are produced by the Selective Laser Melting(SLM)printing equipment.Finally,the optimized part reduces 20%weight compared with the original part structure.The strength and stiffness performance are basically unchanged after CAE analysis,so as to achieve the purpose of structural lightweight.