| 面向装配系统可靠性分析的车身夹具系统优化设计 |
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| 引用本文： | 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,2016,27(13):1829. |
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| 作者姓名： | 刘银华 纪飞翔 叶夏亮 |
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| 作者单位： | 上海理工大学，上海，200093 |
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| 基金项目： | 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） |
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| 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。
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| 关 键 词： | 车身装配 尺寸质量 可靠性模型 夹具布局 磨损率 |
Optimal Fixture System Design of Auto Bodies Oriented to Assembly System Reliability Analysis |
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| Liu Yinhua,Ji Feixiang,Ye Xialiang.Optimal Fixture System Design of Auto Bodies Oriented to Assembly System Reliability Analysis[J].China Mechanical Engineering,2016,27(13):1829. |
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| Authors: | Liu Yinhua Ji Feixiang Ye Xialiang |
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| Affiliation: | University of Shanghai for Science and Technology, Shanghai, 200093 |
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| 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. |
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| Keywords: | auto body assembly dimensional quality reliability model fixture layout wearing rate |
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