龙门加工中心横梁静态分析及优化设计

Static Analysis and Optimization Design of Longmen Processing Center Beam

龙门加工中心是集各种加工程序于一身的大型机床,它能在装载一次工件的情况下完成多个工序的加工。随着高科技时代的到来,龙门加工中心向着更加智能化、模块化、高精度的方向发展。以深圳某公司的G-V2330龙门加工中心为研究对象,针对横梁中存在的结构不合理、生产成本相对较高等问题,利用有限元静力学分析以及正交试验法来指导横梁结构的优化。通过对横梁的有限元模型材料特性参数进行修正,使得有限元模型更接近工件真实状态。得出结果与优化前所得的结果对比发现,横梁最大变形量减少了15.02%,一阶固有频率提升了7.82%,减重了7.5%,不仅提升了横梁的刚度,而且减轻了横梁的重量。这对于横梁结构的合理性以及节省成本起到了积极的作用。

Longmen processing center was a large machine tool with a set of processing procedures,it could complete the processing of multiple procedures with a loading workpiece.With the coming of the high-tech era,longmen processing center developed towards more intelligent,modular and high precision.Took G-V2330 longmen processing center of a company in Shenzhen as the research object,and aimed at the problems of unreasonable structure and relatively high production costs of the beam,finite element statics analysis and orthogonal test method were used to guide the optimization of beam structure.By modifying the material characteristic parameters of the finite element model of the beam,the finite element model was closer to the real state of the workpiece.Compared with the results before optimization,it was found that the maximum deformation of the beam was reduced by 15.02%,the first-order natural frequency was increased by 7.82%,and the weight of the beam was reduced by 7.5%.It not only improved the stiffness of the beam,but also reduced the weight of the beam.It had a positive effect on the rationality of beam structure and cost saving.