基于UG二次开发的车身覆盖件拉延模快速设计研究

发布时间：2018-04-06 22:25

本文选题：车身覆盖件　切入点：模具　出处：《湖南大学》2016年硕士论文

【摘要】：近年来,汽车行业发展迅速,汽车的产销量高速提升,车型的更新换代也越来越频繁,而车身的改版是其最明显的外在表现。车身制造的主要工艺有冲压和焊接,而模具作为冲压工艺的主要生产工具,具有结构复杂、零部件多的特点,其设计生产效率是影响车身覆盖件制造的最主要的因素。目前国内大多数企业,在车身覆盖件模具设计主要采用直接建模的方法,具有耗费时间长、重复劳动量大的问题。现在越来越多的模具设计工作者在利用三维设计软件的过程中逐渐认识到了减少重复设计、提高设计效率、有效利用以往积累的设计经验和设计成果等的必要性和重要性,纷纷将KBE技术运用于模具结构设计,开展了建立参数化的模具结构和标准零件库方面的工作。论文以知识工程和智能化设计技术为原理,综合了大量企业实践经验和知识,进行了如下研究:1.研究拉延模的结构,并对结构进行模块化划分,对每个模块的建模过程及模块之间的关联进行研究,以此作为快速设计的知识来源。2.以KBE和智能设计技术为指导,总结出了模板化程序建模方法和快速建模方法,以此作为快速设计的基本方法。3.在UGNX软件的二次开发平台上,建立起了拉延模参数化设计系统的框架,用程序语言表达通用模块及加强筋的建模方法,开发了这两个模块的交互式快速设计程序,并验证了其实用性。拉延模参数化设计系统能够实现汽车覆盖件冲压模具的快速设计,同时提供有效的交互式经验指导,从而拓展了参数化设计的方式,提高模具设计效率。实际应用证明该设计单元很大程度的减轻了模具设计人员的劳动强度,提高汽车覆盖件模具设计的效率和准确性,缩短模具设计周期,增强企业市场竞争力,具有很高的实用性。
[Abstract]:In recent years, the automobile industry has developed rapidly, the production and sales of cars have been promoted rapidly, and the renewal of vehicle models has become more and more frequent, and the body modification is the most obvious external performance.The main processes of automobile body manufacturing are stamping and welding. As the main production tool of stamping process, die has the characteristics of complex structure and many parts. Its design and production efficiency is the most important factor that affects the manufacture of body panels.At present, most domestic enterprises mainly adopt the method of direct modeling in the design of body panel die, which has the problems of long time consuming and heavy repeated labor.Nowadays, more and more die designers have realized the necessity and importance of reducing repeated design, improving design efficiency, making effective use of the accumulated design experience and design results in the process of using 3D design software.KBE technology has been applied to die structure design one after another, and parameterized die structure and standard part library have been established.Based on the principles of knowledge engineering and intelligent design technology, this paper synthesizes a large number of practical experience and knowledge of enterprises, and carries out the following research: 1.The structure of drawing die is studied, and the structure is divided into modules, and the modeling process of each module and the relationship between modules are studied, which is used as the knowledge source of rapid design.Under the guidance of KBE and intelligent design technology, this paper summarizes the template programming modeling method and the fast modeling method, which is the basic method of rapid design.Based on the secondary development platform of UGNX software, the frame of parametric design system of drawing die is established. The general module and the method of modeling reinforcement bar are expressed by program language. The interactive and rapid design program of these two modules is developed.Its practicability is verified.The parameterized design system of drawing die can realize the rapid design of stamping die for automobile panel, and provide effective interactive experience guidance, thus expanding the way of parametric design and improving the efficiency of die design.The practical application shows that the design unit greatly reduces the labor intensity of die designers, improves the efficiency and accuracy of die design of automobile panels, shortens the period of die design, and strengthens the market competitiveness of enterprises.It has high practicability.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U466

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