基于本体的轴类零件外圆工序尺寸参数的自动生成方法  

Automatic generation method of cylindrical process dimension parameters of shaft parts based on ontology

作　　者：王家浩 黄美发[1,2] 李健 WANG Jiahao;HUANG Meifa;LI Jian(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,China;Guangxi Key Laboratory of Manufacturing Technology,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004 [2]桂林电子科技大学广西制造系统与先进制造技术重点实验室,广西桂林541004

出　　处：《桂林电子科技大学学报》2022年第6期468-475,共8页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(51765012);广西研究生教育创新计划(YCSW2020163)。

摘　　要：针对轴类零件外圆工序尺寸参数人工选择的低效率和不确定性及相关工艺知识在异构CAPP系统间难以共享与传输的问题,提出了一种基于本体的轴类零件外圆工序尺寸参数的自动生成方法。根据轴类零件外圆工序尺寸参数生成过程涉及的设计特征分析、加工方案推理、工序尺寸参数选择等过程知识,构建由零件结构层、设计特征层、特征映射层及加工特征层组成的知识表示模型。利用网络本体语言OWL对知识模型进行本体表示,构建外圆工序尺寸参数生成的元本体模型。采用语义网规则语言SWRL构建与外圆工序尺寸参数生成过程相关的推理规则,设计了外圆工序尺寸参数的自动生成算法,利用Jess推理机实现了外圆工序尺寸参数的自动生成,并通过实例验证了该方法的可行性。Aiming at the inefficiency and uncertainty of the artificial selection of cylindrical process dimension parameters of shaft parts and the difficulty of sharing and transmitting related process knowledge between heterogeneous CAPP systems,a method for automatically generating cylindrical process dimension parameters of shaft parts based on ontology is proposed.According to the process knowledge of design feature analysis,machining plan reasoning,process dimension parameter selection and other process knowledge involved in the process of generating cylindrical process dimension parameters of shaft parts,a knowledge representation model consisting of part structure layer,design feature layer,feature mapping layer and processing feature layer is constructed.The web ontology language OWL is used to represent the knowledge model ontology,and the meta-ontology model of the cylindrical process dimension parameters generation is constructed.The semantic web rule language SWRL is used to construct the inference rules related to the generation process of cylindrical process dimension parameters,and the automatic generation algorithm for cylindrical process dimension parameters is designed.The Jess inference engine is used to realize the automatic generation of cylindrical process dimension parameters,and the feasibility of the method is verified through an example.

关 键 词：本体 OWL SWRL 加工方案 工序尺寸参数 

分 类 号：TH133[机械工程—机械制造及自动化] TP391.7[自动化与计算机技术—计算机应用技术]