目录摘要---------------------------------------------------------------------------------------------------------------2第一章绪论----------------------------------------------------------------------------------------------------31．1CAD技术概述---------------------------------------------------------------------------------------------31．1．1CAD技术的含义与意义------------------------------------------------------------------------------31．1．2CAD技术的发展历程---------------------------------------------------------------------------------31．2参数化建模方法的研究---------------------------------------------------------------------------------41．2．1三维参数化技术的基本原理------------------------------------------------------------------------41．2．2三维参数化中的特征分析---------------------------------------------------------------------------51．2．3Pro/ENGINEER参数化CAD软件------------------------------------------------------------------51．3二次开发技术的应用------------------------------------------------------------------------------------61．3．1二次开发的作用和意义-------------------------------------------------------------------------------61．3．2Pro/E系统二次开发技术-----------------------------------------------------------------------------61．4课题的背景与意义---------------------------------------------------------------------------------------6第二章基于PRO/E的参数化齿轮建模-------------------------------------------------------------------72．1关于齿轮的参数化分析---------------------------------------------------------------------------------72．2齿轮三维参数化实体建模技术研究------------------------------------------------------------------92．2．1基本参数的设定---------------------------------------------------------------------------------------92．2．2渐开线及齿廓的绘制-------------------------------------------------------------------------------112．2．3螺旋角与阵列----------------------------------------------------------------------------------------132．2．4轮体结构----------------------------------------------------------------------------------------------132．2．5参数化尺寸驱动的方法---------------------