上辊万能式三辊弯板机后弯工艺研究  

Study about Back Bending Process of Universal 3-Roll Plate Bending Machines with Movable Upper Roll

作　　者：韩长伟 姚久军 殷文齐 宋清玉 

机构地区：[1]一重集团大连工程技术有限公司,辽宁大连116600

出　　处：《一重技术》2017年第2期11-17,共7页CFHI Technology

摘　　要：上辊万能式三辊弯板机能够直接对板材端部进行下压弯曲,且在整个卷制过程中板材无需掉头,一次卷制成形,提高了卷板工作效率。通过对上辊万能式三辊弯板机板材后弯工艺特性进行的分析,以及根据板材弹塑性弯曲工程理论,得到板材卷制时各辊与板材的几何关系,建立起后弯工艺各工序上辊位移数值的计算模型,提高了板材卷制精度和生产效率。The universal 3-roll plate bending machine with movable upper roll can bend down the two ends of a plate at same time without necessity of turning plates during whole bending process, which increases the bending efficiency. The geometrical relation between the rolls and plate was derived from the analysis about the back bending process characteristics of the 3-roll plate bending machine and the plate elastic-plastic bend theory to establish a numerical model to calculate the upper roll position at each back bending step. With this model, the plate bending accuracy and efficiency have been increased.

关 键 词：三辊弯板机 后弯工艺 上辊位移 数值模型 

分 类 号：TG315.54[金属学及工艺—金属压力加工]