Fixture layout design for curved workpieces

Author

Ding, Dan ; Xiang, Guoliang ; Liu, Yun-Hui ; Wang, Michael Yu

Author_Institution

Dept. of Autom. & Comput.-Aided Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

3

fYear

2002

fDate

2002

Firstpage

2906

Lastpage

2911

Abstract

In this paper, we propose an approach to design a proper fixture layout for a 3D curved workpiece. The problem is tackled in a point set domain by discretizing the exterior surface of the workpiece into a dense collection of candidate fixturing points and then searching for a small proper set of fixturing points that satisfies the total restraint of the workpiece and reduces the workpiece positioning error. The algorithm first randomly selects an initial set of seven fixturing points and then iteratively improves it by exchanging with the other candidate points through a best-first strategy and a randomized motion. Finally, the algorithm has been implemented and its efficiency has been ascertained by two examples

Keywords

iterative methods; manipulators; randomised algorithms; 3D curved workpieces; best-first strategy; candidate fixturing points; exterior surface discretization; fixture layout design; iterative method; point set domain; randomized motion; workpiece positioning error reduction; Automation; Fabrication; Fixtures; Humans; Inspection; Interference; Iterative algorithms; Machining; Manufacturing; Robots;

fLanguage

English

Publisher

ieee

Conference_Titel

Robotics and Automation, 2002. Proceedings. ICRA '02. IEEE International Conference on

Conference_Location

Washington, DC

Print_ISBN

0-7803-7272-7

Type

conf

DOI

10.1109/ROBOT.2002.1013673

Filename

1013673