An Adaptive Pressbrake Control Using an Elastic-Plastic Material Model
An Adaptive Pressbrake Control Using an Elastic-Plastic Material Model
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DOI：
10.1115/1.3185847
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发表时间：
1982-11
期刊：
影响因子：
--
通讯作者：
K. Stelson;D. Gossard
中科院分区：
文献类型：
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作者：
K. Stelson;D. Gossard
一个自适应控制器的折弯机的设计，建造和测试。控制器在弯曲循环的早期部分期间测量力和位移以估计工件参数。这些参数用于弹塑性材料模型中，以预测正确的最终冲头位置，从而产生所需的卸载角度。采用微机控制辛辛那提CB 90型液压折弯机。数据采集和计算时间短到足以使用6.7 mm/s（16 in./s）的标准成形速率弯曲15度的最小侧面角。最小）和25 mm（1 in.）V死在所有情况下，牙侧角误差均小于1.5度。
An adaptive controller for a pressbrake has been designed, built, and tested. The controller measures force and displacement during the early part of the bend cycle to estimate workpiece parameters. These parameters are used in an elastic-plastic material model to predict the correct final punch position to yield the desired unloaded angle. A microcomputer is used to control a Cincinnati CB90 hydraulic pressbrake. Data acquisition and computation times are short enough to bend a minimum flank angle of 15 deg using the standard forming rate of 6.7 mm/s (16 in./min) and a 25 mm (1 in.) V-die. Errors in flank angle were less than 1.5 deg in all cases.