【作者】 李永刚；

【导师】 郝滨海；

【作者基本信息】 山东大学 ， 材料加工工程， 2005， 硕士

【摘要】 近年来,汽车制造业得到较快发展,同时也对汽车零部件制造业提出了更高的要求。但目前,国内大部分汽车零部件制造企业发展滞后,总体技术水平不高;模具开发通常是针对某一具体零件进行,专业化生产水平和效率低、成本高,限制了汽车制造业的进一步发展。如何用更加经济高效的方法来改变这一现状成了当前汽车零部件制造业中一个很重要的研究课题。 在汽车零部件当中,有相当数量的总体外观相近,只是几个关键尺寸或者型号有所区别,我们将其定义为系列化零件。 汽车零件的外观质量、力学性能以及设计精度是三个至关重要的环节,而这三个环节都与模具设计、制造和调试的精度有很大的关系。本文以系列化汽车零件模具设计作为突破口展开研究,以Pro/E系统为开发平台,以Pro/E系统自带的开发包Pro/toolkit和VC++为工具,开发了汽车系列化零件直齿锥齿轮模具的数字化设计系统,试图为汽车零件模具开发提供一种更加经济高效的方法。 本文以汽车系列化零件中比较有代表性的直齿锥齿轮为例,详细论述了该系统的整个开发过程。该系统将Pro/E系统的参数化与数字化功能应用于直齿锥齿轮模具开发过程中,达到了由一套模具通过参数的修改得到该系列零件所有的各套模具。在开发过程中,利用“节锥不变、分锥变位”的新思路和Pro/E系统中的Program命令功能达到模具组件的参数化控制。齿形线的走向利用权威的渐开线关系式方程来控制实现。克服了由Pro/E系统根据零件直接生成模腔不能达到参数化控制的弊端。 在系统界面开发过程中,利用Pro/toolkit语言中的同步模式进行开发,使得该系统运行更加稳定,同时得到与Pro/E系统风格相同的UI对话框和菜单;利用VC的可视化界面技术,设计出方便实用的人机交互界面,大大提高系统的使用和管理效率。 通过CAE软件DEFORM的虚拟制造功能,对由该系统开发的模具在整个产品生产过程中的虚拟过程进行了模拟。并且,针对模具上凸模形状的不同对整个产品成形过程中的载荷和成形效果会产生很大影响这一问题,对三种不同形状更多还原

【Abstract】 Ever since these years, automobile manufacturing has gotten a great advancement. In the same time, its development puts forward a higher requirement to automobile parts manufacturing. At present, the development level is laggard in national mostly automobile parts enterprises. Total technique plane is not high. Die exploitation only aims at a single part. How to change currently actuality in more economic and efficiency methods becomes a very important study task for automobile parts manufacturing now.There are many parts in automobile parts which have similar watch and few differences in only several key sizes or types. We define them as series parts.Product watch, mechanical capability and design precision are super crucial factors in automobile parts produce. There are prodigious relation between these three factors with mould design, mould manufacture and debugging precision. This article exploits a numerical design system of precision forging die of straight bevel gear for automobile series parts to try to provide a more economic and higher efficient method for the die exploitation of automobile parts. This system spreads research through looking for series parts dies as a break. It regards Pro/E system as exploitation flat and takes Pro/toolkit and VC++ as tools.This article regards representative straight bevel gear as a example in automobile series parts and detailedly states the total exploitation process. This system applies parametric and numeric in the course of die exploitation of straight bevel gear. We can obtain all dies of this series from one suit of die template by amending parameters. In the process of exploitation, we use a new idea of "pitch cone radius not modification, reference cone angle modification." and order function of "Program" of Pro/E system to reach parametrical control of assembles of die. The towards of dentiform line is controlled through the standard relation of involute. This system conquers a disadvantage that die cavity from Pro/E system can’t be controlled through parameter control.In the exploitation process of the interfaces of the system, this article puts up exploitation with synchronous mode of Pro/toolkit language, which lets this system run more steadily. In the same time, "UI" dialog boxes and menus with same style are gotten. This article designs facility and applied Human-Computer Interactional interfaces, which greatly increases the use and management rate of this system.This article simulates the entire production process of product with "DEFORM" CAE software. In addition, it simulates three different male dies (no convex, cylinder convex, sphere convex) because these three male dies have different infections to figuration load and effect in total shape procession of product. Sphere convex is regarded as the best project from the analysis results about stress distribution andLoad-Journey curve. The simulation results show that sphere convex project can effectively improve fluidity of metal, depress forging press and product favorable parts.This system combines parametric and numeric and management functions of Pro/E system with simulation function of DEFORM in dummy manufacture. These functions are used in die design and dummy production of automobile series parts, which improves die exploitation efficiency and management efficiency of die subassembly. This system solves existent disadvantages of traditional exploitation means. This system affords preferable instructional effect for die farther exploitation of automobile series parts.更多还原