基于全三维制造特征的高效工艺决策方法研究

发布时间：2018-05-09 06:43

本文选题：UG二次开发 + 特征识别　；参考：《沈阳航空航天大学》2016年硕士论文

【摘要】：当今的机械制造业面对的是一个需求更趋向多样化、产品生命周期更短、竞争更激烈的市场,如何优化产品设计、制造过程及有效节约劳力、机床、材料、刀具等资源,降低企业成本已成为当务之急。三维CAPP是一项涉及产品设计、制造及管理的综合技术,对优化资源的配置,降低企业成本有重要意义。通过研究航空结构件的特点,本文以航空结构件三维模型为唯一识别依据,采用基于图与规则的混合识别方法实现了其特征的自动识别与特征信息的提取。在提取的特征信息的基础上,采用基于特征的零件信息知识表示方法将航空结构件的制造特征信息与加工工艺信息分解为特征元、加工元二级结构,并通过产生式规则建立决策模型,生成加工元。通过分析结构件工艺的特点,采用基于改进蚁群算法的智能工艺生成方法,实现了航空结构件工艺的智能生成,最终得到一条最优或者接近最优的工艺路线。基于对智能工艺技术的研究,开发集成了航空结构件智能工艺生成系统。应用UG二次开发工具UG/open API并结合C++开发了具有制造特征自动识别模块、基于特征的智能工艺生成模块的航空结构件智能工艺生成系统。
[Abstract]:Today's machinery manufacturing industry is facing a more diversified demand, shorter product life cycle, more competitive market, how to optimize product design, manufacturing process and effectively save labor, machine tools, materials, cutting tools and other resources. Reducing the cost of enterprises has become a top priority. 3D CAPP is a comprehensive technology related to product design, manufacturing and management, which is of great significance to optimize the allocation of resources and reduce the cost of enterprises. Based on the study of the characteristics of aeronautical structural parts, the 3D model of aeronautical structural parts is used as the sole recognition basis, and the hybrid recognition method based on graph and rule is used to realize the automatic recognition of the features and the extraction of feature information. On the basis of the feature information extracted, the feature based part information knowledge representation method is used to decompose the manufacturing feature information and the processing process information of aeronautical structural parts into feature elements and machining element secondary structures. The decision model is established by the production rule, and the machining element is generated. By analyzing the characteristics of the structural part process and adopting the intelligent process generation method based on the improved ant colony algorithm, the intelligent generation of the aeronautical structural part process is realized. Finally, an optimal or near optimal process route is obtained. Based on the research of intelligent process technology, an intelligent process generation system for aeronautical structural parts is developed and integrated. An intelligent process generation system for aeronautical structural parts is developed with UG secondary development tool UG/open API and C, which has automatic recognition module of manufacturing features and intelligent process generation module based on features.
【学位授予单位】：沈阳航空航天大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V262

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