基于工艺特征的集成化切削数据库系统研究与开发

发布时间：2017-12-27 04:09

本文关键词：基于工艺特征的集成化切削数据库系统研究与开发　出处：《山东大学》2016年硕士论文　论文类型：学位论文

【摘要】：在新兴技术引领先进制造技术发展的背景下,制造资源的信息化管理需求不断增加,切削数据库在计算机集成制造系统中支撑数控加工技术成为必然趋势。在切削数据库研究发展过程中,为了向实际应用推广,存在数据源获取方式是否合理、有效,系统结构是否灵活、实用等问题尚未完全解决。因此,本文开展切削数据库的数据源与系统结构研究,进行基于工艺特征的集成化切削数据库系统的开发。底层数据构建结合理论分析、仿真研究与数学分析处理,基于工艺特征推荐切削用量,数据更加可靠。在数控编程时直接调用数据库系统进行参数设置,减少编程人员的输入信息量,提高数控编程效率,降低出错率。首先,为表达切削数据库系统开发过程所涉及的加工信息,提出了一种层次化特征模型,该模型分为零件层、设计特征层、加工特征层与工艺特征层。利用特征模型进行数据库的概念设计并建立了航空发动机八种典型零件的特征谱系。其次,基于所建立的工艺特征谱系构建切削数据库底层数据,通过对工艺特征进行参数化描述,并进行加工过程的有限元仿真,建立切削温度与特征参数及切削用量的关系,在最佳切削温度条件下,推导切削速度计算公式,将切削速度计算公式作为系统底层数据。然后,确定切削数据系统与UG软件的集成方案为UG菜单内调用切削数据库MFC (Microsoft Foundation Classes)动态链接库。采用MFC 与 UG/Open联合开发技术创建了切削数据库集成开发环境,编制切削数据库与UG的接口集成程序、功能交互程序与数据传递程序实现了表示集成、功能集成、数据集成三方面的集成策略。最后,按照软件系统开发流程进行了切削数据库系统的开发,对需求分析、概要设计、详细设计的过程及结果进行介绍。通过系统的应用实例证明基于工艺特征的集成化切削数据库系统在特征谱系查询、切削用量查询及优化、与UG的集成应用三方面的实现结果。
[Abstract]:Under the background of new technology leading the development of advanced manufacturing technology, the demand for information management of manufacturing resources is increasing. Cutting database has become an inevitable trend in computer integrated manufacturing system supporting CNC machining technology. During the research and development of cutting database, in order to extend to practical application, whether the data source acquisition way is reasonable and effective, whether the system structure is flexible and practical has not yet been completely solved. Therefore, this paper studies the data source and system structure of the cutting database, and carries out the development of integrated cutting database system based on process characteristics. The base data construction is combined with theoretical analysis, simulation research and mathematical analysis. Based on the technical features, the cutting parameters are recommended, and the data are more reliable. In the numerical control programming, the database system is directly invoked for parameter setting, reducing the input information of the programmer, improving the efficiency of NC programming and reducing the error rate. First, in order to express the machining information involved in the process of cutting database system, a hierarchical feature model is proposed, which is divided into part level, design feature layer, machining feature layer and process feature layer. The feature model is used to design the database, and the characteristic pedigree of eight typical parts of aero engine is set up. Secondly, the construction process feature spectrum cutting database based on the underlying data, through the parametric description of the process characteristics, finite element simulation and machining process, establish the relationship between the cutting temperature and cutting parameters and the cutting temperature in the best condition, the calculating formula of the cutting speed, the cutting speed calculation formula as the underlying data system. Then, the integration scheme of the cutting data system and the UG software is determined to call the dynamic link library of the cutting database MFC (Microsoft Foundation Classes) within the UG menu. The integrated development environment of cutting database is created by using the joint development technology of MFC and UG/Open. The interface integration program, function interactive program and data transfer program of cutting database and UG are compiled, and three integrated strategies, integration, function integration and data integration, are realized. Finally, according to the software system development process, we develop the cutting database system, and introduce the process of requirement analysis, outline design, detailed design process and results. Through a systematic application example, it is proved that the integrated cutting database system based on process characteristics achieves three aspects in the following aspects: characteristic pedigree query, cutting parameter query and optimization, integration with UG.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG659

【相似文献】