论文:2016,Vol:34,Issue(6):1004-1010
引用本文:
徐昌鸿, 张树生, 王洪申, 李秀玲, 黄波. 一种面向多局部结构数控工艺重用的工艺方案优化方法[J]. 西北工业大学学报
Xu Changhong, Zhang Shusheng, Wang Hongshen, Li Xiuling, Huang Bo. A NC Process Reuse of Alternative Subparts Oriented ProcessPlanning Optimization Approach[J]. Northwestern polytechnical university

一种面向多局部结构数控工艺重用的工艺方案优化方法
徐昌鸿1, 张树生1, 王洪申2, 李秀玲1, 黄波1
1. 西北工业大学 现代设计与集成制造技术教育部重点实验室, 陕西 西安 710072;
2. 兰州理工大学 机电工程学院, 甘肃 兰州 730050
摘要:
为了实现已有数控工艺重用方法在零件工艺规划中的有效应用,提出了一种面向多局部结构数控工艺重用的工艺方案优化方法。首先,构建工艺优化目标函数的数学模型;然后依据检索到的多个相似局部结构可重用数控工艺,提出一种面向局部结构的备选数控工艺方案集生成方法;依据工艺可重用度,采用轮盘赌算法为待设计局部结构选择一个数控工艺方案,构建待设计零件的加工操作顺序图(OPG);最后,提出一种基于OPG的蚁群算法,得到最优数控工艺方案。实验结果证明,该方法能有效生成零件的最优数控工艺方案,提高了数控工艺的编制效率。
关键词:    数控工艺重用    相似局部结构    优化    加工操作顺序图   
A NC Process Reuse of Alternative Subparts Oriented ProcessPlanning Optimization Approach
Xu Changhong1, Zhang Shusheng1, Wang Hongshen2, Li Xiuling1, Huang Bo1
1. The Key Laboratory of Contemporary Designing and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China;
2. School of Mechanical & Electronical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Abstract:
To realize the effective application of existing NC process reuse approaches in the domain of process planning for parts, a NC process reuse oriented process planning optimization approach was proposed. Firstly, the mathematical model of the objective function for process planning optimization was established. Secondly, based on the multiple similar subparts associated with reusable NC process, a NC process candidates generation method for query subparts was elaborated. The NC process for each query subpart was selected using the roulette wheel approach in terms of the reusability, and the operation precedence graph (OPG) of the query part was constructed. Finally, an OPG based ant colony algorithm was introduced to obtain the optimal NC process scheme for the query part. Experimental results showed that our approach could effectively produce the global optimal NC process scheme for parts and significantly improve the efficiency of NC programming.
Key words:    NC process reuse    similar subparts    optimization    OPG   
收稿日期: 2016-04-12     修回日期:
DOI:
基金项目: 国家自然科学基金(51375397)资助
通讯作者:     Email:
作者简介: 徐昌鸿(1990-),西北工业大学博士研究生,主要从事CAD/CAM、三维CAPP、快速数控编程的研究。
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