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Agent-Based Cooperative NC Conceptual Design Zhi Gang Xu Design Technology BinBj=l; 0 I 8. n Bj = 1; illigle :1 :ligile following design constraints can be got: According to the design specifications of lathe, the 1) if the workpiece is heavy, then the workpiece can not move vertically; 2) ifthe workpiece is in high precision, then the workpiece is fixed or has only one translation movement; 3) ifthe workpiece is heavy and in high precision, then the workpiece jig must be adjacent with the base; . . . . . . . . . . . . . . . . . . . 2.3 Module Display The NC conceptual layout model can be expressed precisely by arranging different modules in an explicit way. Fig 1.b is an example of five-axis NC layout model with x,y,z translation movement and A, B rotation. Fig1 .c is the “C“ shape ring list mod.el. It is a close ring from cutter to workpiece. CONTROL MODULE Fig.2 Agent Architecture. Definition 4 : Agent is described as a sextuple : (Aid, Communication, Acquaintance, Cooperate, Assessment, Control). := := : := () :=l lll : := : := () : := lll := llT- Y-T-X-H-Base-V-Base-T-Z-R-X in Fig.4 is one feasible NC conceptual structure in Fig. 1 (c). L e _ l m ”l7q H-Base t Fig .4 Multi-Solution in NC layout design 7. Conclusion and Acknowlegement The NC structure conceptual design model based on agent described in this paper is now under intense development. The future work will focuse on the solution qualification mechanism, now it depends mainly on the designers to compare the various conceptual structures, only after the computer tell which is feasible and which is better, can we realize some real form of creativity. This project is supported by the Shandong Provincial Excellent Young Scientist Award. 8. Reference l HU Weigang Development and Practice of Machine Tool Modularization and the Intelligent Supporting System, Doctoral Thesis, Huazhong Institute of Technology, WuHan, 1994, 6. 2 Xu Zhigang, Huang Kezheng, Ai Xing, Cooperative Problem Solving in Mechanical Multi-Agent Systems, Intemational Pro of Workshop on CSCW in Design, 1996, 6, Beijing, P.R.China: 3 Zeng Guangzhou, Sun Boqi. A method for software requirement engineering based on system simulation and its supporting environment. Chinese Joumal o f Computer, 20(3):280-283(1997). 4 H.Suzuki,et a1 Modeling Information in Design Background for Product development Support, Annals o f the CZZP , vol 5 Yotaro Hatamura, et al, Actual Con