一种面向集成的注塑模冷却系统特征识别算法  

A method of feature recognition of injection mold cooling system for integration

作　　者：张龙[1] 李庆[1] 黄志高[1] 周华民[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,武汉430074

出　　处：《现代制造工程》2013年第4期1-5,共5页Modern Manufacturing Engineering

基　　金：国家科技支撑计划项目(2011BAF16B00);广东省教育部产学研结合项目(2011B090400368)

摘　　要：提出一种基于图的注塑模冷却系统特征识别方法:首先根据注塑模型芯或者型腔三维模型构建面边图,再对面边图进行扩展,得到相应的扩展属性面邻接图;在此基础上,对冷却系统特征的规则进行描述,并依据该规则将冷却回路特征子图从型芯或者型腔的扩展属性面邻接图中识别出来。对于识别出来的冷却回路特征子图,首先进行简化处理,去掉多余的水路信息,然后提取其直径和中心线信息并进行优化,最后转换成CAE系统所需的格式。实例测试表明,该冷却系统特征识别算法能有效地识别注塑模的冷却回路特征,提高用户的工作效率并降低出错率,实现了冷却系统在CAD和CAE之间的无缝集成。A new graph-based automatic identification method of injection mold cooling system is proposed. Firstly, a face-edge graph is constructed according to the core or cavity three-dimensional model inputted. And then an extended face adjacency attrib- ute graph is forming by extending the face-edge graph. Based on this graph, the rules of cooling system feather are defined and cooling runner feather sub-graphs are recognized from the extended face adjacency attribute graph of the mold according to these rules. These cooling runner feather sub-graphs are simplified to get rid of excess cooling runner information and then extracted data of diameter and centerline,which is optimizing and converted to the data required by CAE analysis. The case study shows that this method is available to recognize cooling runner feathers of injection mold efficiently, improve user productivity, reduce the error rate and realize seamless integration of cooling system between CAD and CAE.

关 键 词：注塑模 冷却系统 特征识别 图 CAD CAE集成 

分 类 号：TP191[自动化与计算机技术—控制理论与控制工程] TH16[自动化与计算机技术—控制科学与工程]