面向PDM的机械产品数字化模型管理技术研究

发布时间：2017-12-27 12:42

本文关键词：面向PDM的机械产品数字化模型管理技术研究　出处：《中北大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着PDM概念在国内企业的逐步深入,国产PDM系统也逐步成熟,市场也逐步壮大。在机械制造行业内,将企业已有的数字化模型有效地管理起来成为引进PDM系统后的首要任务。在管理数字化模型过程中,PDM系统经常会在模型导入电子仓库后失去产品的层次结构,同时无法在二维CAD模型文件工作流程电子审批过后完成对应文件的电子签批。因此,机械产品CAD模型的批量出入库技术、二维CAD模型文件的工作流程电子审批技术是PDM系统有效管理企业数字化模型的重心,这两部分被统称为机械产品数字化模型管理技术。完成这项管理技术必须通过CAD与PDM系统的集成技术并借助CAD与PDM系统的二次开发技术才可以实现。本文借助校企合作项目研究的机会,对以SolidWorks为CAD系统、T5-PLM为PDM系统主要完成了以下内容:详细讨论了机械产品CAD模型属性与层次结构信息的提取、分析与CAD文件对象存储方法。采用顶装配体遍历法解决了产品结构信息与机械产品三维CAD模型一同出入库的问题,完成了机械产品CAD模型的批量出入库研究。借助XML技术解决了机械产品二维CAD模型文件在随工作流程执行中不能同时签审的问题,给出了在审批流程回退时,二维CAD模型文件撤销签审的执行方法。简要介绍了SolidWorks二次开发,对其二次开发代码的阅读与编写方法进行了探究,并创新式地提出了若干种SolidWorks二次开发代码的读、写方法。同时对所提出的方法进行了举例佐证。根据机械产品数字化模型管理技术的研究,编写出了若干个相关的PDM系统插件,解决了在校企合作项目中的问题,并为解决类似的问题提供了新的思路。
[Abstract]:With the gradual deepening of the concept of PDM in domestic enterprises, the domestic PDM system is also gradually mature, and the market is gradually growing. In the machinery manufacturing industry, the effective management of the existing digital model of the enterprise becomes the primary task after the introduction of the PDM system. In the process of managing digital models, PDM system often loses the product hierarchy after the model is imported into the electronic warehouse. At the same time, the electronic signature of the corresponding files can not be completed after the electronic approval of the two-dimensional CAD model file workflow. Therefore, the batch delivery and storage technology of mechanical CAD model, the working process of two-dimensional CAD model files, the electronic approval technology is the focus of PDM system to effectively manage the enterprise digital model. The two parts are collectively referred to as the digital management technology of mechanical products. The implementation of this management technology must be achieved through the integration of CAD and PDM systems and the two development techniques of CAD and PDM systems. With the help of research opportunities in school enterprise cooperation, this paper mainly completed the following contents for SolidWorks CAD system and T5-PLM PDM system. It discussed in detail the extraction and analysis of mechanical product CAD model attribute and hierarchy information, and CAD file object storage method. The problem of product structure information coming out with the 3D CAD model of mechanical products is solved by the top assembly method. The batch storage and delivery of CAD models of mechanical products is completed. With the help of XML technology, the problem that two dimensional CAD model files of mechanical products can not be signed at the same time can not be signed at the same time with the execution of work process. The implementation method of two dimensional CAD model files revocation and signature is given when the approval process is rolled back. This paper briefly introduces the two development of SolidWorks, explores the way of reading and compiling the secondary development code, and puts forward several ways to read and write SolidWorks's two development code innovatively. At the same time, the proposed method is illustrated with an example. According to the research on management technology of mechanical product digital model, we have compiled several related PDM system plug-ins, solved the problems in school enterprise cooperation projects, and provided new ideas for solving similar problems.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH122

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