面向装配系统可靠性分析的车身夹具系统优化设计

中国机械工程

面向装配系统可靠性分析的车身夹具系统优化设计

刘银华;纪飞翔;叶夏亮

上海理工大学，上海，200093

出版日期:2016-07-10 发布日期:2016-07-12
基金资助:
国家自然科学基金资助项目（51405299）；上海市自然科学基金资助项目（14ZR1428700）

Optimal Fixture System Design of Auto Bodies Oriented to Assembly System Reliability Analysis

Liu Yinhua;Ji Feixiang;Ye Xialiang

University of Shanghai for Science and Technology, Shanghai, 200093

Online:2016-07-10 Published:2016-07-12
Supported by:

摘要/Abstract

摘要： 为描述多工位车身装配系统的渐进衰退特性，建立了面向车身产品尺寸质量和夹具系统要素的装配系统可靠性模型。结合夹具设计稳定性参数约束，提出了面向白车身装配系统可靠性的车身多工位焊装过程的夹具布局优化方法；在给定夹具布局下构建了定位销制造成本函数，提出多工位夹具定位销磨损率的优化模型并对其进行优化分配。将上述方法应用于侧围装配案例，分析发现优化后装配系统可靠性衰退过程得到较大改善，并有效提升了夹具系统的使用寿命。

关键词: 车身装配, 尺寸质量, 可靠性模型, 夹具布局, 磨损率

Abstract: In order to describe the gradual decline characteristics of multi-station body assembly system, a reliability model of assembly system for the dimensional quality and fixture system components were established. Combined with the fixture design stability parameter constraints, system reliability of body in white assembly system was proposed oriented multi-station welding process scheme of fixture layout optimization method. Under the given fixture layout, the production cost function of the locating pin was constructed, and the optimization model of the wearing rate of the multi-station fixture was put forward and the distribution was optimized. At last, a body side assembly case was used to illustrate the proposed method, and results show both of the reliability decline process and lifetime of the optimized fixture system are improved.

Key words: auto body assembly, dimensional quality, reliability model, fixture layout, wearing rate

中图分类号:

TH16

刘银华, 纪飞翔, 叶夏亮. 面向装配系统可靠性分析的车身夹具系统优化设计[J]. 中国机械工程.

Liu Yinhua, Ji Feixiang, Ye Xialiang. Optimal Fixture System Design of Auto Bodies Oriented to Assembly System Reliability Analysis[J]. China Mechanical Engineering.

参考文献

[1]Chou Y C, Chandru V, Barash M M.A Mathematical Approach to Automatic Configuration of Machining Fixtures: Analysis and Synthesis[J]. ASME Journal of Engineering for Industry， 1989,111(4):299-306.

[2]Lakshminarayana K. Mechanics of Form Closure[J]. Acta Mechanica, 1984,52(1):107-118.

[3]Menassa R J, DeVries W R. Optimization Methods Applied to Selecting Support Positions in Fixture Design[J]. ASME Journal of Engineering for Industry, 1991,113(4):412-418.

[4]谢伟松，邓铮，丁伯慧.用 CAAA 优化多阶段装配过程中的夹具布局[J].中国机械工程，2015,26（5）：658-663.

Xie Weisong, Deng Zheng, Ding Bohui. Fixture Layout Optimization in Multi-station Assembly Process Using GAAA[J]. China Mechanical Engineering, 2015，26(5)：658-663.

[5]郑军红，叶修梓，陈志杨. 基于神经网络和遗传算法的智能夹具规划[J].中国机械工程, 2008，19(19): 2376-2381.

Zheng Junhong, Ye Xiuzi, Chen Zhiyang. Intelligent Fixture Planning Based on Artificial Neural Network and Genetic Algorithms[J]. China Mechanical Engineering, 2008,19(19): 2376-2381.

[6]Chen Y, Jin J, Shi J. Integration of Dimensional Quality and Locator Reliability in Design and Evaluation of Multi-station Body-in-white Assembly Processes[J]. IIE Transactions, 2004, 36(9):827-839.

[7]Ceglarek D,Shi J I, Zhou Z. Variation Reduction for Assembly: Methodologies and Case Studies Analysis[R]. Ann Arbor, MI: University of Michigan,1993.

[8]刘银华，纪飞翔，叶夏亮. 车身多工位装配系统可靠性评估与维护策略研究[J].中国机械工程，2016，27(2):273-277.

Liu Yinhua, Ji Feixiang, Ye Xialiang. Study on Reliability Evaluation and Maintenance Policy of the Auto Body Multi-station Assembly System[J]. China Mechanical Engineering, 2016,27(2):273-277.

[9]Cai W, Hu S J, Yuan J X.A Variational Method of Robust Fixture Configuration Design for 3d Workpieces[J]. Journal of Manufacturing Science and Engineering, 1997, 119(11):593-602.

[10]Xiong C H, Xiong Y L. Stability Index and Contact Configuration Planning for Multifingered Grasp[J]. Journal of Robotic Systems, 1998,15(4):183-190.

[11]Jin J, Chen Y. Quality and Reliability Information Integration for Design Evaluation of Fixture System Reliability[J].Quality and Reliability Engineering International, 2001, 17(5): 355-372.