融合制造语义的三维工序模型序列重用方法  

3D Process Model Sequence Reuse Method Based on Manufacturing Semantics

作　　者：乔虎 何俊 师治全 向颖 Qiao Hu;He Jun;Shi Zhiquan;Xiang Ying(School of Mechatronic Engineering,Xi’an Technological University,Xi’an 710021;College of Mechanical&Electrical Engineering,Shaanxi University of Science&Technology,Xi’an 710021)

机构地区：[1]西安工业大学机电工程学院,西安710021 [2]陕西科技大学机电工程学院,西安710021

出　　处：《计算机辅助设计与图形学学报》2019年第8期1425-1433,共9页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金(51705392);陕西省软科学研究计划(2019KRM152,2019KRM203);陕西省创新人才推进计划-青年科技新星项目(2019KJXX-060)

摘　　要：针对目前三维工序模型序列重用缺少对加工特征尺寸、加工精度、形位公差等制造信息的考虑,不能很好地支持零件制造过程工艺设计重用的问题,提出一种融合制造信息的三维工序模型序列重用方法.首先,利用图同构原理对工艺路线中三维工序模型序列进行优化,减少搜索空间;然后,利用子图同构对三维工序模型加工特征进行匹配,通过融合制造信息对加工特征匹配进行预处理和相似性评价,以获取具有最相似加工特征的三维工序模型;其次,设计三维工序模型序列优化算法获取同构的三维工序模型序列;最后,以某型轴零件工艺设计过程为例进行实例验证,结果表明融合制造信息的三维工序模型序列重用方法能够准确地根据指定制造特征进行工艺设计重用,具有良好的应用效果.The lack consideration of manufacturing information such as manufacturing feature size,machining accuracy,form and position tolerance,etc.leads to the poor effect reuse of 3D process model sequence in parts manufacturing process.For that problem,this paper proposes a 3D process model sequence reuse method based on manufacturing semantics.Firstly,the 3D process model sequence in the process route is optimized by using graph isomorphism to reduce the search space.Secondly,the sub-image isomorphism is used to match the processing features of the 3D process model,and the manufacturing information is used to match the processing features to perform pre-processing and similarity evaluation,by which the 3D process model with the most similar processing features is obtained.Thirdly,a 3D process model sequence optimization algorithm is designed to obtain isomorphic three-dimensional process model sequences.Finally,the process design process of a certain shaft part is taken as an example to verify the results.The results show that the purposed method can accurately reuse process model sequence,and has good application effect.

关 键 词：三维工序模型 子图同构 模型检索 三维工序模型序列重用 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]