A Computer Numerical Controlled System with NURBS Interpolator

Author

Liangji, Chen

Author_Institution

Sch. of Mechatron. Eng., Zhengzhou Inst. of Aeronaut. Ind. Manage., Zhengzhou, China

Volume

3

fYear

2009

fDate

March 31 2009-April 2 2009

Firstpage

216

Lastpage

219

Abstract

Using the advantage of Non-Uniform Rational B-Spline(NURBS) curves to represent spatial curves, an instruction format with NURBS curves, which is suitability for 3-axis coordinated real-time interpolation, is presented against the current line and arc interpolation methods with drawbacks of low-speed, low-accuracy and great Computer Numerical Control(CNC) files in sculptured surface machining. The method to realize the interpolation function in an open CNC system developed by ourselves is given. Through the real cutting a NURBS curve, it has been indicated that the proposed method can be added into the CNC system and the method is feasible.

Keywords

computerised numerical control; interpolation; production engineering computing; 3-axis coordinated real-time interpolation; NURBS interpolator; computer numerical controlled system; interpolation methods; sculptured surface machining; Computer aided instruction; Computer aided manufacturing; Computer numerical control; Control systems; Interpolation; Machining; Real time systems; Spline; Surface reconstruction; Surface topography; 3-axis machining; CNC; NURBS; interpolation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Engineering, 2009 WRI World Congress on

Conference_Location

Los Angeles, CA

Print_ISBN

978-0-7695-3507-4

Type

conf

DOI

10.1109/CSIE.2009.344

Filename

5170833