Optimizing Locator Position to Maximize Robustness in Critical Product Dimensions
Optimizing Locator Position to Maximize Robustness in Critical Product Dimensions
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DOI：
10.1115/detc2009-86598
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发表时间：
2009
影响因子：
2.8
通讯作者：
Johan Lööf;L. Lindkvist;R. Söderberg
中科院分区：
文献类型：
--
作者：
Johan Lööf;L. Lindkvist;R. Söderberg
零件相互之间或在固定装置中的定位方式对于几何变化如何传播并导致关键产品尺寸的变化至关重要。因此，为了避免后期的装配和生产问题，应该在早期设计阶段更加强调这一活动。在早期的文献中，定位器位置已经使用优化来定义，以达到一个鲁棒的定位方案。这意味着通过以最优方式放置定位器来优化零件的总稳健性。有时，部分上的某些区域比其他区域对变化更敏感。因此，本文提出了一种优化定位方案中定位器位置的方法，以在定义的关键维度上最大化鲁棒性。提出了一个优化问题的公式，并提出了一种启发式算法。最后，将该算法应用于一个工业实例。
The way parts are located in relation to each other or in fixtures is critical for how geometrical variation will propagate and cause variation in critical product dimensions. Therefore, more emphasis should be put on this activity in early design phases in order to avoid assembly and production problems later on. In earlier literature, locator positions have been defined using optimization to reach a robust locating scheme. This implies that the total robustness of a part is optimized by placing the locators in an optimal way. Sometimes there are areas on parts that are more sensitive to variation than others. Therefore, this paper suggests an approach for optimizing the positions of locators in a locating scheme to maximize robustness in defined critical dimensions. A formulation of an optimization problem is presented, and an algorithm solving this in a heuristic approach is developed. Finally, this algorithm is applied on an industrial example.