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首页> 外文期刊>International Journal of Computer Integrated Manufacturing >Network part program approach based on the STEP-NC data structure for the machining of multiple fixture pallets
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Network part program approach based on the STEP-NC data structure for the machining of multiple fixture pallets

机译：基于STEP-NC数据结构的网络零件程序方法，用于加工多个夹具托盘

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摘要

The adoption of alternative process plans, that is, process plans that include alternative ways of machining a workpiece, can improve system performance through a better management of resource availability. Unfortunately even if this opportunity is deeply analysed in literature, it is not frequently adopted in real manufacturing practice. In order to fill this gap, this article presents the network part program (NPP) approach for the machining of multiple fixture pallets. The NPP approach is based on the STEP-NC data structure which supports nonlinear sequences of operations and process flexibility. In the NPP approach, a machining system supervisor defines the machining sequences and generates the related part programs just before the execution of the pallet. This article provides an approach with high scientific value and industrial applicability based on the integration of new and existing process planning methods. A real industrial case study is considered in order to show that in real applications the final quality is unaffected by the change of the sequence of the operations due to the employment of nonlinear process plans. Since the results appear very encouraging, the proposed approach is a possible solution to accelerate the adoption of nonlinear process planning in real manufacturing practice.
机译：采用替代工艺计划，即包括对工件进行加工的替代方法的工艺计划，可以通过更好地管理资源可用性来提高系统性能。不幸的是，即使这种机会在文献中得到了深入的分析，但在实际的制造实践中却很少采用。为了填补这一空白，本文提出了用于加工多个夹具托盘的网络零件程序（NPP）方法。 NPP方法基于STEP-NC数据结构，该数据结构支持非线性的操作序列和过程灵活性。在NPP方法中，加工系统主管定义了加工顺序并在执行托盘之前就生成了相关的零件程序。本文基于新的和现有的过程计划方法的集成，提供了一种具有高科学价值和工业实用性的方法。考虑一个实际的工业案例研究，以表明在实际应用中，由于采用了非线性工艺计划，最终质量不受操作顺序变化的影响。由于结果看起来令人鼓舞，因此所提出的方法是加速在实际制造实践中采用非线性过程计划的一种可行解决方案。

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