锻压技术

立式棒料校直机自动校直工艺

英文标题：Automatic straightening process for vertical bar straightening machine

作者：张东伟陈柏金刘玉蒙杨筱

单位：华中科技大学

分类号：TH162

出版年,卷(期):页码：2019,44(8):100-105

摘要：

经自由锻造生产成形的大型棒料极易产生各种弯曲变形。针对手工校直中存在的校直效率低、校直效果差以及校直行程依赖于经验法等问题，首先提出一种立式棒料全自动校直机。该校直机能够自动扫描棒料轮廓，根据测量数据自动判断校直位置并计算校直工艺参数及实施校直。其次，基于理想弹塑性材料模型，得出校直行程与初始弯曲量的数学模型。最后，通过ANSYS有限元软件对校直过程进行模拟，结果表明，由此模型得到的校直行程可以作为棒料的自动校直计算依据。

The large bar formed by free forging can easily produce various bending deformation. For the problems existing in manual straightening, such as low straightening efficiency, poor straightening result and straightening stroke relying on empirical method, a kind of fully automatic vertical bar straightening machine was proposed firstly, which could obtain the profile by scanning the bar automatically, determine the straightening position, calculate processing parameters and implement the straighten process according to the measured data. In addition, a math model calculating straightening stroke and initial bending amount was obtained based on the ideal elasticplastic material model. Finally, the straightening process was simulated by finite element（FE）software ANSYS. The results show that the straightening stroke obtained by this model can be used as the basis for automatic straightening calculation of bar.

基金项目：

湖北省重大科技创业基金项目（2013AEA003）

作者简介：张东伟（1995-），男，硕士研究生 E-mail：1085366268@qq.com 通讯作者：陈柏金（1965-），男，博士，教授 E-mail：chenbaijin@sina.com

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