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首页> 外文期刊>International Journal of Production Research >Change management in modular assembly systems to correspond to product geometry change
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Change management in modular assembly systems to correspond to product geometry change

机译：模块化装配系统中的变更管理对应于产品几何变化

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摘要

Modular assembly systems are a category of changeable manufacturing systems, which can handle the rapid change in customer demands, product design change and market fluctuations. On the operational level, jigs and fixtures are fundamental elements of assembly systems. They are used to hold parts and subassemblies in place, and directly affect assembly cost, quality and time. Therefore, modular fixtures that can adapt to different geometries are becoming a very important enabler for changeable manufacturing. In this paper, two mathematical models are presented to optimise the use of a passive modular assembly fixture plan in an automated assembly system by considering different production scenarios and constraints. These models optimise the changeability plan of the modular fixture by minimising the number of dowel replacements between different part geometries assuming that the candidate dowels locations for each part have been determined using existing methods in the literature by considering different assembly requirements. The first model, LRTE, considers all possible part rotations and translations on the fixture to minimise setup time. In addition, the second model, SLRTE, enables the system to simultaneously optimise job sequence. This paper presents various examples in different sizes, and the results show that the model can effectively reduce the fixture setup time up to %50.
机译：模块化组装系统是一类可变的制造系统，可以处理客户需求的快速变化，产品设计变更和市场波动。在操作层面，夹具和夹具是装配系统的基本要素。它们用于将部件和子组件固定到位，直接影响装配成本，质量和时间。因此，可以适应不同几何形状的模块化夹具成为可变制造的非常重要的推动因素。在本文中，提出了两种数学模型，以通过考虑不同的生产方案和约束来优化在自动组装系统中的无源模块化组件夹具计划的使用。这些模型通过最小化不同部分几何形状之间的销售数量来优化模块化夹具的可变平程，假设通过考虑了不同的组装要求，通过文献中的现有方法确定了每个部件的候选销序位置。第一个模型LRTE，请考虑所有可能的部分旋转和夹具的翻译，以最小化设置时间。此外，第二种模型SLRTE使系统能够同时优化作业序列。本文提出了不同尺寸的各种示例，结果表明，该模型可以有效地将夹具设置时间减少到％50。

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