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摘要：
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旋转斜楔冲压工艺是最重要的设计环节，决定了其结构形式。因此，提出一种基于几何特征的旋转斜楔冲压工艺优化设计方法。首先，对覆盖件中具有冲压负角的几何特征进行截面分析，确定旋转斜楔的平面角度。其次，在截面线的基础上通过辅助线的方式确定旋转轴心的分布区域。再次，根据旋转斜楔的结构强度设计标准，在旋转轴心的分布区域优化旋转轴的位置及其旋转半径，并确定其外形基本设计尺寸。最后，根据运动仿真过程设计旋转斜楔的工作角度和行程。实例表明，该优化设计方法降低了旋转斜楔冲压工艺设计的难度，提高了设计质量和效率。
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The stamping processing is the most important in the design of rotational wedge, which determines its structural style. At present, an optimization design method of stamping process for rotational wedge was proposed based on geometric features. Firstly, the cross-sectional analysis of the geometric features with stamping undercut in panels was carried out to determine the plane angle of the rotational wedge. Secondly, on the basis of cross-sectional line, the distribution area of the rotation axis was determined by auxiliary lines. Thirdly, based on the design standard of structural strength of rotational wedge, the position of the rotation axis and radius was optimized in the distribution area of rotation axis, and shape dimensions of the rotational wedge were also determined. Finally, according to the motion simulation process, the working angle and stroke of the rotational wedge were designed. The example shows that the optimization design method can reduce the design difficulty of rotational stamping process and improve the design quality and efficiency.
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基金项目：
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武汉科技大学冶金装备及其控制教育部重点实验室开放基金资助项目(2015B08)；2017年度容桂科技计划项目(容桂经发(2017)27号-8)
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作者简介：
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李贵(1983-), 男, 博士, 副教授
E-mail：leegui2030@wust.edu.cn
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