大型机床床身热变形及其结构优化

发布时间：2018-05-28 05:38

本文选题：大型床身 + 热变形　；参考：《锻压技术》2017年05期

【摘要】：在采用Pro/Engineer软件建立大型床身三维几何模型的基础上,运用Pro/Mechanica模块对该模型进行了热变形有限元分析,获得了热平衡状态下的床身温度场分布情况以及床身沿Y、Z方向的热变形量。依据分析结果,对床身的内部结构进行优化并增添外部冷却装置,然后再次进行热变形有限元分析和效果验证。在以上研究的基础上,进行了床身温升与热变形实验。研究结果表明,有限元分析值与检测值一致性较佳,经过优化设计的床身热变形量明显减小,既有效提升了工作效率,又降低了生产成本,使机床精度进一步提升。
[Abstract]:On the basis of establishing the 3D geometric model of large bed with Pro/Engineer software, the thermal deformation finite element analysis of the model is carried out by using Pro/Mechanica module. The distribution of temperature field of the bed and the thermal deformation of the bed along the direction of Yzzie Z are obtained under the condition of thermal balance. According to the analysis results, the internal structure of the bed was optimized and the external cooling device was added, then the thermal deformation finite element analysis and the effect verification were carried out again. On the basis of the above research, the temperature rise and thermal deformation of the bed are tested. The results show that the finite element analysis value is in good agreement with the detection value, and the hot deformation of the bed is obviously reduced after the optimization design, which not only effectively improves the working efficiency, but also reduces the production cost, and further improves the precision of the machine tool.
【作者单位】：四川工程职业技术学院车辆工程系;
【基金】：四川省教育厅科研资助项目(16ZB0495)
【分类号】：TG502

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