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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Design of continuous variable curvature roll shape and straightening process research for two-roll straightener of bar
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Design of continuous variable curvature roll shape and straightening process research for two-roll straightener of bar

机译：杆两辊矫直机连续变量曲率辊形和矫直工艺研究的设计

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摘要

At present, high straightness precision and good bar surface quality are difficult to meet at the same time in the straightening process of bar. In view of this problem, this paper puts forward a continuous variable curvature roll shape design method, and studies the straightening process setting method. The roll shape of the straightening roll is tangentially connected by multiple segments arc of uniform curvature changes, and the curvature decreases uniformly from the middle to both ends. The roll shape designed by this method can be in good contact with the bar and can effectively improve the surface quality of the straightened bar. In order to make the straightening process parameters more reasonable and effective, reduce the dependence of the production line on workers, and realize the full automatic straightening of the bar, a complete process straightening bending springback model of bar was established. Based on roll shape and bar specification, the optimization iteration model of upper and lower straightening roll angle is established. Then the setting method of the roll gap and the guide plate spacing is discussed. The field straightening process is simulated by finite element analysis. The process setting model is verified on the straightener after roll shape modification. The automatic control of two-roll straightening of bar can be effectively realized by using the roll shape and process model. The straightened bar has high straightness and surface quality.
机译：目前，高直线度精度和良好的棒材表面质量在杆的矫直过程中同时难以满足。鉴于此问题，本文提出了连续可变曲率辊形状设计方法，并研究了矫直工艺设置方法。通过多个曲率变化的多个区段切向连接矫直辊的辊形，并且曲率从中间两端均匀地降低。通过该方法设计的辊形可以与杆良好接触，可以有效地改善拉直杆的表面质量。为了使矫直工艺参数更合理且有效，降低生产线对工人的依赖性，并实现了杆的全自动矫直，建立了完整的工艺矫直弯曲回弹模型。基于辊形和条规范，建立了上下矫直辊角的优化迭代模型。然后讨论了辊间隙和引导板间隔的设置方法。通过有限元分析模拟现场矫直过程。在滚动形状修改后，在矫直器上验证过程设定模型。通过使用辊形和工艺模型，可以有效地实现杆的两辊矫直的自动控制。拉直杆具有高直线度和表面质量。

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