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首页> 外文期刊>Journal of Mechanical Design >Quasi-Kinematic Couplings for Low-Cost Precision Alignment of High-Volume Assemblies
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Quasi-Kinematic Couplings for Low-Cost Precision Alignment of High-Volume Assemblies

机译:准运动联轴器,用于低成本,大批量装配的精密对准

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摘要

Quasi-kinematic couplings (QKCs) are alignment devices that incorporate elastic-plastic deformations to combine principles of elastic averaging and exact constraint to achieve precision alignment. This paper shows QKCs can be used for low-cost alignment in high-volume assembly applications. This is demonstrated via a case study of the process used to align main journal bearings in an automobile engine. Results of experiments show best case QKC performance of 0.35 microns compared to 4.85 microns for the widely-used dowel pin-hole design. Statistical analyses predict the QKC will meet five micron alignment requirements in 99.999 percent of all assembly cycles. Compared to the dowel pin-hole design, the QKC uses 60 percent fewer piece pans and costs 36 percent less.
机译:准运动联轴器(QKC)是对准装置,其结合了弹塑性变形以结合弹性平均和精确约束的原理以实现精确对准。本文显示了QKC可用于大批量装配应用中的低成本对准。通过对汽车发动机主轴颈轴承对准过程的案例研究证明了这一点。实验结果表明,最佳情况下的QKC性能为0.35微米,而广泛使用的销钉孔设计的QKC性能为4.85微米。统计分析预测,QKC将在所有组装周期的99.999%中满足5微米对准要求。与销钉孔设计相比,QKC使用的平底锅减少了60%,成本降低了36%。

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