轴图素设计(毕业设计)

目录 摘要 ………………………………………………………………2 一. 引言 ………………………………………………………………3 二.AutoCAD二次开发语言及工具介绍 …………………………3 三. 基于三维图素的零件详细设计……………………………………………5 1.轴图素库的制作方法 ……………………………………………5 2.轴图素库的功能 ……………………………………………6 3.轴图素库的内容………………………………………6 4.轴图素类的描述 …………………………………………8 5.图素的存储………………………………………………………………8 6.实体的生成………………………………………………………………8 四.制作轴图素库的技术要点… … … … … … … … … … … … …9 五.轴图素库应用实例… … … … … … … … … … … … ………9 六. 本课题的特色和创新之处 … … … … … … … … … … 15 七.结论… … … … … … … … … … … … … … … … … … 15 致谢……………………………………………………………16 参考文献……………………………………………………………17 轴图素设计 中文摘要 ： 根据机械零件的结构特征建立参数化的图素库，是提高交互绘图效率的重要手段之一。机械CAD过程中有许多具有相同结构特征的绘图元素。如一根轴，不管其结构再复杂，也不过由常用的十几个基本元素（轴段）所组成。如果每设计一根轴都要一条线一条线的去画，不仅效率低而且精度也很难保证。轴图素库就是在这样一种背景下应运而生的。轴图素库是将具有相同结构特征的绘图元素，组合的一起形成绘图元素的集合，以后在绘制类似这种结构特征的零件时变可从图素库中调用某一图素，输入图素的特征尺寸，在屏幕上边自动绘出此图素的图形。 关键字：机械CAD过程；基本元素；轴特征；轴图素库。 英文摘要(Abstract)： Setting up picture elements storehouse of parameter according to structure characteristic of machine components is one of the important means to improve mutual drawing efficiency. There are a lot of drawing elements with the same structure characteristic in mechanical CAD course. Such as an axle, no matter its structure is more complicated, only made up by a dozen commonly used basic elements ( axle section ). Designing one axle one line one picture of going of line not only have low efficiency but also the precision is very difficult to guarantee each time. The plain storehouse of axle picture arises at the historic moment is under this background. Axle picture elements storehouse with the same structure characteristic drawing elements which made up form drawing set of element together, can transfer a certain plain picture at drawing similar kinds of structure part of characteristic afterwards. After inputting the plain size of characteristic, it can draw this figure with plain picture automatically on the screen. Key words: mechanical CAD course; basic elements; axle feature；axle picture elements storehouse。