A method for forming an elliptical involutes gear in CAD

Author

Tang, Xiao-chu ; Zhang, Min ; Ren, Fang-shu ; Gao, Sande ; Tong, Chang-fei

Author_Institution

Inst. of Mech. Eng., Liaoning Shihua Univ., Fushun, China

fYear

2010

fDate

26-28 June 2010

Firstpage

246

Lastpage

248

Abstract

A method of forming an elliptical involutes gear is proposed based on Visual LISP implanting AutoCAD in this paper. First, a geometric model is established according to a pinion cutting principle of the involutes profile and geometric location relationship between pinion cutter and pitch curve of elliptical gear. It makes pinion cutter do pure rolling on a pitch curve of elliptical gear. Then the arc length of cutter on the pitch curve is equal to the length of cutter rotating around its rotation center in order to guarantee the generating grinding teeth between the pinion cutter and the blank in processing. Finally, teeth profile of elliptical involutes gear is formed utilizing graphics movement simulation in AutoCAD by Visual LISP programming.

Keywords

CAD; LISP; computational geometry; computer graphics; gears; Visual LISP implanting AutoCAD; elliptical involutes gear; geometric model; graphics movement simulation; grinding teeth; pinion cutting principle; pitch curve; teeth profile; Computational modeling; Computer graphics; Computer simulation; Educational institutions; Gears; Machining; Mechanical engineering; Solid modeling; Teeth; Testing; AutoCAD; Visual LISP; elliptical involutes gear; graphic simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5535710

Filename

5535710