Tolerance Modeling and Optimization of XY-Table for LED Die Bonder Based on Multi-Body Systems


Article Preview

High performance XY-table is commonly used in packaging equipments which needs rational tolerance to ensure its high performance requirements and low manufacturing costs. The related studies mainly focus on high speed motion control algorithms and high precision structure design. The proper tolerance is essential in the development process of new products. In this paper, a new method for tolerance optimization based on Multi-body systems is presented. The volumetric error model for XY-table is established based on Multi-body systems. And then, by identifying the basic geometric error components, the relationships between the final output precision of the XY-table and the geometry error sources are established. The tolerance optimization model of XY-table using the above relationships is presented. In this model, objective function is the total manufacturing costs and the constraints are the above relationships. By solving the optimization model, the optimal tolerances are obtained. Finally, a tolerance design example of LED die bonder is given to illustrate the proposed method.



Advanced Materials Research (Volumes 201-203)

Edited by:

Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang




M. F. Huang et al., "Tolerance Modeling and Optimization of XY-Table for LED Die Bonder Based on Multi-Body Systems", Advanced Materials Research, Vols. 201-203, pp. 2922-2926, 2011

Online since:

February 2011




[1] D. G. Jie: Research on the High-speed/High-precision Positioning System of Macro/Micro Driving (Ph.D., Harbin Institute of Technology China 2006).

[2] Y. T. Li: Study on High-acceleration/High-precision Aerostatic Positioning Stage for IC Packing (Ph.D., Shanghai Jiao Tong University China 2006).

[3] Q. Huang: China Mechanical Engineering, Vol. 21 (2010), pp.580-584 (in Chinese).

[4] Weill R. Annals of the CIRP, 1988, 37(2): 1-8.

[5] M. M. Huang: Study on the Methodology of Concurrent Tolerancing in Design and Manufacturing (Ph.D., Huazhong University of Science & Technology China 2004).

[6] B. Kuang, Computer Integrated Manufacturing Systems Vol. 14 (2008), pp.398-462 (in Chinese).

[7] Y. W. Liu, L.B. Liu, X. S. Zhao, Q. Zhang, and S. X. Wang: China Mechanical Engineering, Vol. 9 (1998), pp.48-52. (in Chinese).

[8] Y. W. Liu: China Mechanical Engineering, Vol. 11 (2000), pp.144-149 (in Chinese).

[9] X. D. Huang: Institution of Engineering and Technology Press, 2006: 1403-1410.