基于AutoCAD的三维旋体的计算机自动化形成

Automatic forming of 3D helical-body in computer based on AutoCAD

美国的AutoDesk公司推出的AutoCAD是一个工程界应用广泛的软件,但它不能形成螺旋线和旋式楼梯、弹簧、螺纹、钻头等三维螺旋体。本文通过对螺旋线进行理论分析,建立了螺旋线的数学模型,在此基础上,使用嵌套于AutoCAD之中的Visu-al LISP,在AutoCAD软件平台上研究实现了三维螺旋体的计算机自动化形成。实现计算机自动化形成三维螺旋体后,三维螺旋体的形戍极为方便,速度很快。

AutoCAD made in AutoDesk Company is applied widely to engineering circles, but it can' t form helical curve and helical body (for example: helical stair, spring, screw thread, broach etc). In the paper, using Visual LISP in AutoCAD software, the automatic forming of 3D helical-body in computer is achieved based on theoretical analysis and mathematics model about helical curve in AutoCAD. Then forming them is very advantageous and very quick.