摘要
为实现对已有数控(NC)工艺设计成果的有效重用,提出一种计算机辅助设计/计算机辅助制造(CAD/CAM)模型驱动的型腔特征自适应数控工艺设计方法。基于中轴变换(MAT)提取型腔特征三维CAD模型中隐藏的高层次数控工艺信息,有效表征刀具切削过程;针对已有特征实例进行可重用性分析,构建一个融合多属性数控工艺要素的特征相似性评价模型;基于检索返回的相似特征实例,自适应重用其关联的CAM模型工艺参数生成新特征的数控工艺。实验结果表明:所提方法能够自动、高效地获得特征数控工艺,提升工艺设计效率85%以上,满足企业工艺设计智能化的工程需求。
To realize the effective reuse of existing numerical control(NC)process,an adaptive NC processes planning approach for pocket features driven by computer aided design/computer aided manufacturing(CAD/CAM)models was presented.Firstly,using the medial axis transform(MAT),the deeper NC process information concealed in 3D CAD models was recovered to explain the tool cutting process.Finally,based on the returned similar feature case through retrieval,the corresponding process parameters of the associated CAM model were reused adaptively to generate the NC process for the query feature.According to experimental results,the proposed method could automatically and effectively get the NC process for features and boost the NC process planning's efficiency by over 85%,satisfying the requirements of intelligent NC process planning for entertainment.
作者
徐昌鸿
黄瑞
张树生
梁嘉宸
卞荣
XU Changhong;HUANG Rui;ZHANG Shusheng;LIANG Jiachen;BIAN Rong(Engineering Training Center,School of Applied Technology,Nanjing Institute of Technology,Nanjing 211167,China;College of Artificial Intelligence and Automation,Hohai University,Changzhou 213022,China;School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《北京航空航天大学学报》
北大核心
2025年第10期3374-3384,共11页
Journal of Beijing University of Aeronautics and Astronautics
基金
国家自然科学基金(52075148)
江苏省高等学校基础科学(自然科学)研究项目(23KJB460017)
南京工程学院高层次引进人才科研启动基金资助项目(YKJ202128)。
关键词
数控工艺
重用
型腔特征
自适应
相似性
numerical control process
reuse
pocket features
adaptive
similarity
