Title :
Computer Simulation for a Real-Time Process of Machining on a 3D Free Surface by Using a Spatial 3-UPRR Parallel Robot
Author :
Jiayin, Xu ; Yi, Lu
Author_Institution :
Coll. of Mech. Eng., Yanshan Univ., Qinhuangdao
Abstract :
A novel computer graphics and computer aided geometric approach is used for machining a complicated shape workpiece and lettering on a 3D free surface or a plane by adopting a novel 3-DOF(Degree of Freedom) parallel robot. Based on the geometry constraint and dimension-driving technique, a 3-UPRR parallel simulation mechanism and its workspace are created. Then a 3D free surface and a guiding plane of tool path are constituted, and combined with the 3-UPRR parallel robot. Finally a novel 3-UPRR simulation parallel machine tool for machining a 3D free surface is created. By real-time controlling two driving dimension on the guiding plane, the process of machining complete. The simulation results are verified by the analytic results. The computer aided geometric variation approach has the advantages of simple and straightforward, without any need of compiling program.
Keywords :
computer graphics; machining; real-time systems; robots; 3-DOF parallel robot; 3-UPRR parallel simulation mechanism; 3-UPRR simulation parallel machine tool; 3D free surface; computer aided geometric approach; computer graphics; dimension-driving technique; geometry constraint; guiding plane; machining; real-time process; shape workpiece; spatial 3-UPRR parallel robot; tool path; Computational geometry; Computational modeling; Computer graphics; Computer simulation; Concurrent computing; Machining; Parallel machines; Parallel robots; Shape; Solid modeling; computer graphics; parallel robot; real-time control; simulation;
Conference_Titel :
Computer and Electrical Engineering, 2008. ICCEE 2008. International Conference on
Conference_Location :
Phuket
Print_ISBN :
978-0-7695-3504-3
DOI :
10.1109/ICCEE.2008.51
