锻压技术

考虑桥连接的钣金切割件加工路径优化方法

英文标题：Process path optimization method on sheet metal cutting parts considered bridge connection

单位：1. 广西大学 2. 北部湾大学

分类号：TP391；TH164

出版年,卷(期):页码：2023,48(4):66-71

摘要：

针对包含桥连接的钣金切割件加工路径问题，提出基于旅行商问题模型的钣金件切割路径优化方法，并确定了该方法下桥连接的定位。此方法针对钣金排样图，将轮廓基于图元特征拆分成Ni段子轮廓段加工图元，以遍历所有子轮廓段为目标规划切割路径，采用改进的蚁群算法获得包含桥连接定位点的切割路径，最后依据桥连接定位点确定全体桥连接位置。对排样好的钣金切割件进行仿真验证，并将含桥连接的传统广义旅行商问题切割方法与相关文献方法进行对比，表明了该方法能够有效地减少切割空程路径及切割过程中的启停次数，提高了加工效率。

For the process path problem of sheet metal cutting parts including bridge connection, a cutting path optimization method for sheet metal parts based on the traveling salesman problem model was proposed, and the location of bridge connection under this method was determined. Then, for the sheet metal layout diagram, the contour was split into processing graphic elements of Ni sub-contour segments based on graphic element features, and the cutting path was planned with the goal of traversing all sub-contour segments. Furthermore, the cutting path including bridge connection positioning points was obtained by the improved ant colony algorithm, and the overall bridge connection positions were determined based on the bridge connection positioning points. Finally, the simulation verification of the well-arranged sheet metal cutting parts was tested, and the traditional generalized traveling salesman problem cutting method with bridge connection was compared with the related literature methods. The results show that this method can effectively reduce the cutting empty path and the number of starts and stops during the cutting process, which improving the processing efficiency.

基金项目：

国家自然科学基金资助项目(52165062)；广西自然科学基金重点项目(2020JJD160004)

作者简介：张文斌（1996-），男，硕士研究生 E-mail：2411252636@qq.com 通信作者：鲁娟(1988-)，女，博士，副教授 E-mail：lujuan3623366@163.com

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