基于三维工序模型的NC自动编程方法研究
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摘要
以实现三维工艺为目标,分析三维工艺技术要求,提出一种基于加工特征分类与映射的三维工序模型生成方法,并面向加工特征实现NC自动编程。研究了设计特征和加工特征的内在联系,对设计特征和加工特征进行分类并关联工艺信息,基于属性邻域子图匹配的方法构建加工特征与设计特征之间的映射算法,成功完成设计特征与加工特征之间的转化。构建工艺知识库,制定标准的工艺模板,实现加工工艺与加工特征的对应匹配,完成三维工序模型的生成及NC自动编程。最终基于UG二次开发软件模块以验证上述方法。
In order to achieve the goal of three-dimensional process and analyze the requirements of 3 D technology,a 3 D process model generation method based on processing feature classification and mapping is proposed,and NC automatic programming is realized for machining features. The inner connection between design features and processing features is studied,the design features and processing features are classified and the process information is associated,and the mapping algorithm between the processing features and the design features is constructed based on the method of matching the neighborhood subgraph of attributes,and the transformation between the design features and the processing features is successfully completed. The technical knowledge base is constructed,the standard process template is formulated,the corresponding matching of processing technology and processing characteristics is realized,and the 3 D process model is generated and NC automatic programming is completed. Finally,based on the two development software module of UG,the above methods are verified.
In order to achieve the goal of three-dimensional process and analyze the requirements of 3 D technology,a 3 D process model generation method based on processing feature classification and mapping is proposed,and NC automatic programming is realized for machining features. The inner connection between design features and processing features is studied,the design features and processing features are classified and the process information is associated,and the mapping algorithm between the processing features and the design features is constructed based on the method of matching the neighborhood subgraph of attributes,and the transformation between the design features and the processing features is successfully completed. The technical knowledge base is constructed,the standard process template is formulated,the corresponding matching of processing technology and processing characteristics is realized,and the 3 D process model is generated and NC automatic programming is completed. Finally,based on the two development software module of UG,the above methods are verified.
引文
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[2]乔立金,张金.三维数字化工艺设计中的关键问题及其研究[J].信息化技术,2012,2(1):29-32.
[3]万能,赵杰,莫蓉.三维机加工序模型辅助生成技术[J].计算机集成制造系统,2011,17(10):2112-2118.
[4]田富君,田锡天,耿俊浩.基于模型定义的工艺信息建模[J].计算机集成制造系统,2012,18(5):913-919.
[5]丁丁,张旭斯,铁冬,等.三维工艺设计中基于加工特征的工序模型生成技术[J].兵工自动化,2013,32(6):31-39.
[6]金国新.基于SML与加工特征的零件工艺变型设计技术系统[D].杭州:浙江大学,2007.
[7]王秀琳.智能化创成式机电产品工艺规划方法研究及实现[D].哈尔滨:哈尔滨工业大学,2016.
[8]张富强,何见停,苏进展.基于多工序制造过程的零件加工特征演变始态网络建模与分析[J].北京工业大学学报,2017,43(6):833-839.
[9]房文林,闫崇京,年丽云,等.结果导向的三维中间工序模型快速生成[J].机械设计与制造,2014,43(10):32-36.
[10]徐同明,彭义兵,李少阳,等.一种工序模型自动生成方法[J].现代制造工程,2017(2):81-86.
[11]曹文刚,张乃鹏,姜康,等.基于特征本体的三维工序模型的生成方法研究[J].机床与液压,2013,41(17):139-141,150.
[12]邵立,张树生,白晓亮,等.基于制造特征的三维工序模型构建方法[J].制造业自动化,2015,37(1):58-61,82.
[13]韩飞燕.多态演化工序模型建模方法及其应用研究[D].西安:西北工业大学,2016.
[14]张辉,刘华昌,张胜文,等.复杂零件三维中间工序模型逆向生成技术[J].计算机集成制造系统,2015,21(5):1216-1221.
[15]罗雪雁. UG的WAVE技术实现典型零件快速工艺编制[J].科技论坛,2010(28):19-20.
[16]王义林,胡贤罡,张启丰.基于模板的汽车覆盖件拉延模具结构参数化设计[J].锻压装备与制造技术,2009,44(5):98-101.