基于MES的机加车间制造变更管理技术和系统研究

发布时间：2018-03-09 14:36

本文选题：工艺变更　切入点：制造变更　出处：《重庆大学》2012年硕士论文　论文类型：学位论文

【摘要】：在目前市场环境中，竞争不断加剧，客户需求日益多样，企业的生产方式已由少品种大批量转向多品种小批量，按需生产。加之机加车间生产环境的复杂性和不可预测性，由需求变化、生产环境变化等原因造成的制造变更在机加车间中不可避免。目前机加车间一旦发生制造变更，一般通过调度方案来消除制造变更给生产环节带来的不利影响，制造变更管理过程混乱，缺乏对其他生产环节的考虑。因此，如何系统、有效和科学地考虑制造变更，研究合理的处理方案是目前机加车间面临的主要问题之一。有效的解决制造变更问题对于提高车间管理水平具有较好的工程应用价值。本文针对机加车间中的制造变更问题，提出了一种基于MES的机加车间制造变更管理模式，详细设计了各种原因引起的制造变更的处理流程，并在MES系统中加以实现。首先阐述了制造变更的定义、产生原因以及对机加车间生产过程的影响。介绍了制造变更国内外研究现状，并对各种处理方法进行了对比和分析。其次，分析机加车间生产特点和现有机加车间中制造变更管理现状，结合现有制造变更管理方法，提出了一种基于MES的机加车间制造变更管理模式，用于解决机加车间制造变更问题。并针对不同原因引起的制造变更，设计了相关处理流程。再次，研究了制造变更处理方案中动态调度技术。提出了动态事件影响评估模型以及遗传算法和人工干预相结合的动态调度方法。并对调度方案人工干预流程进行了详细设计。最后，在以上研究的基础上，以SQL2000和VB为开发工具，在MES中构建了制造变更管理子系统，，并在某企业完成系统应用验证工作。
[Abstract]:In the current market environment, the competition is becoming more and more intense, the customer demand is becoming more and more diverse, the production mode of the enterprise has changed from the small variety and large quantity to the multi-variety and small batch, and the production on demand, in addition to the complexity and unpredictability of the production environment of the machine processing workshop, The manufacturing change caused by the change of demand and production environment is inevitable in the machining workshop. At present, once a manufacturing change occurs in the manufacturing plant, the adverse effect of the manufacturing change on the production link is generally eliminated by scheduling scheme, the process of manufacturing change management is chaotic, and the consideration of other production links is lacking. Therefore, how to system, It is one of the main problems to consider the manufacturing change effectively and scientifically, and to study the reasonable treatment scheme. The effective solution to the manufacturing change problem has good engineering application value to improve the management level of the workshop. In this paper, a manufacturing change management model based on MES is proposed to solve the problem of manufacturing change in machining workshop. The processing flow of manufacturing change caused by various reasons is designed in detail and implemented in MES system. Firstly, the definition of manufacturing change, the cause of manufacturing change and its influence on the production process of machining workshop are introduced. The research status of manufacturing change at home and abroad is introduced, and the comparison and analysis of various treatment methods are made. Secondly, this paper analyzes the production characteristics of the machine adding workshop and the current situation of the manufacturing change management in the existing machine adding workshop. Combining with the existing manufacturing change management method, this paper puts forward a manufacturing change management model based on MES. It is used to solve the problem of manufacturing change in machining workshop. The related process is designed for manufacturing change caused by different reasons. Again, The dynamic scheduling technology in the manufacturing change processing scheme is studied, the dynamic event impact assessment model and the dynamic scheduling method combining genetic algorithm and human intervention are proposed, and the manual intervention process of the scheduling scheme is designed in detail. Finally, on the basis of the above research, a manufacturing change management subsystem is constructed in MES with SQL2000 and VB as the development tools, and the system application verification is completed in a certain enterprise.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH186

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