Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/57892
Title: An integrated setup planning and fixture design system for prismatic parts
Authors: Lin, L.
Zhang, Y.F. 
Nee, A.Y.C. 
Keywords: CAPP
Conceptual fixture design
Layout fixture design
Modular fixture system
Rule-based system
Setup planning
Issue Date: 1997
Source: Lin, L.,Zhang, Y.F.,Nee, A.Y.C. (1997). An integrated setup planning and fixture design system for prismatic parts. International Journal of Computer Applications in Technology 10 (3-4) : 198-212. ScholarBank@NUS Repository.
Abstract: This paper reports a knowledge-based system for conceptual and layout modular fixture design developed on an intelligent CAD system, ICAD. The integration of setup planning and fixture design is achieved through conceptual fixture design which includes two stages: the pre-setup and post-setup conceptual design. In the pre-setup stage, the system takes feature-based part models as input and generates feasible fixturing features for each possible setup based on static constraints only. This information is then used by a setup planning system developed separately. Post-setup conceptual fixture design takes place when the setup plan is available. For each setup with its intermediate workpiece state, the surface candidates for each fixturing datum are identified and ranked according to various geometric and technological constraints. The best ranked surface for each fixturing datum is selected. The system then performs layout design by generating all the supporting, locating and clamping points for each setup, taking into account various constraints including part geometry, stability, modular fixture elements, and interference. The series of setups are simulated graphically on the computer screen. Output from this sysltem can be used for detailed fixture design. In this paper, the development of the system is described in detail and a case study is presented to highlight its performance.
Source Title: International Journal of Computer Applications in Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/57892
ISSN: 09528091
Appears in Collections:Staff Publications

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