汽车车灯的逆向造型

机械设计制造及其自动化论文，论文编号:JX1269  论文字数:15406.页数:36

摘 要
 本文基于逆向工程技术的基本原理及其操作流程，在UGNX中完成汽车车灯的逆向造型。由于汽车车灯的要求较高，要具有一定的光顺性、聚光性及美观性。因此，每完成一个面及最终车灯产品后，都对产品进行各个方面的检测。
 本文给出了UGNX中逆向造型的详细过程，包括：产品分析、面的分析、母面的制作，并对主要面进行了截面分析、面反射、偏差检查等。
 基于UGNX设计出一个完整的汽车车灯，该车灯具有美观的光顺性并有良好的聚光性，能真正的和整车结构相配合，在实际中有良好的聚光性能满足车辆的安全性能。由于UGNX一般用于正向三维造型的软件，因此在车灯逆向造型过程中首先对车灯的点数据进行认真的观察分析，确定车灯的拔模方向，先过点做线，再过线做母面这种方式逐步构件出一个完整的车灯结构，然后进一步修剪最终设计出符合要求的车灯。
   
 关键词:  逆向工程 UGNX  车灯
Abstract

 A car lights was completed based on the reverse engineering of the basic principles and operational procedures in UGNX. Because of the higher car lights, certain degree of fairness, condenser and aesthetics, each completed face and the final product were analyzed on all aspects of product testing.
 In this paper, the detailed process of reverse modeling was offered, including: product analysis of the analysis, the mother of the production, the cross-section analysis, surface reflectivity, the error measurement. Based on UGNX design a complete car lights, the lights are beautiful and the fairing of a good condenser, can really fit the structure of the vehicle and, in practice a good condenser performance meet the safety performance of vehicles . Reverse Engineering, also known as reverse engineering is an emerging technology in the manufacture and application remains to be perfect. Reverse Engineering, also known as reverse engineering is an emerging technology in the manufacture and application still needs to be improved.
Key words: Reverse Engineering,  UGNX,  lights

目 录
摘 要 i
Abstract ii
第一章  绪论 1
 1.1  课题背景 1
 1.2  任务及意义 2
第二章  逆向工程技术原理 4
 2.1  实现原理 4
 2.2  作图技巧与规则 7
第三章  UG介绍 10
 3.1  UG背景 10
 3.2  主要模块介绍 10
 3.3  功能介绍 12
 3.3.1  基本曲线、编辑及样条 12
 3.3.2  曲面功能 13
 3.3.3  分析功能 15
第四章  汽车车灯逆向设计 19
 4.1 认识及分析产品 19
 4.2  体的分解及确定拔模方向 21
 4.3  逆向过程 21
结论 30
参考文献 31
毕业设计总结 32
致谢 33