Title :
Treatment of NURBS in the system of lath incision
Author :
Xueliang, Huang ; Xu, Zhi ; Wen, ChuanXin ; Du, Jian ; Ohsaki, Hiroyuki
Author_Institution :
Southeast Univ., Nanjing, China
Abstract :
This paper deals with the method for extracting graphics information from DXF files, in which are the NURBS curves stored. With the extracted data, the parametric formulation of the NURBS curve can be constructed. And then, we provide an algorithm for approximating arbitrary parametric curves with circular arcs. The above processing for NURBS has been applied in the lath incision machine, which makes it possible for the CNC cutter to produce complex shaped workpieces. This machine includes 3 sets of servo motors, one set of 3-axis CNC and a conventional PC. Experimental results indicate that this method is able to provide a satisfactory performance.
Keywords :
computerised numerical control; electric machine analysis computing; lathes; servomotors; CNC cutter; DXF files; NURBS curves; arbitrary approximating; complex shaped workpieces; graphics information; lath incision machine; parametric curves; parametric formulation; servomotors; Computer numerical control; Data mining; Graphics; Programmable control; Servomechanisms; Servomotors; Spline; Surface reconstruction; Surface topography; Tiles;
Conference_Titel :
Electrical Machines and Systems, 2003. ICEMS 2003. Sixth International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
7-5062-6210-X
