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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture >A unified manufacturing resource model for representation of computerized numerically controlled machine tools
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A unified manufacturing resource model for representation of computerized numerically controlled machine tools

机译：表示计算机数控机床的统一制造资源模型

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摘要

The capability of any manufacturing system primarily depends on its available machine tools. Thus machine tool representation is a vital part of modelling any manufacturing system. With the rapid advances in computerized numerically controlled (CNC) machines, machine tool representation has become a more challenging task than ever before. Today's CNC machine tools are more than just automated manufacturing machines, as they can be considered multi-purpose, multi-tasking, and hybrid machining centres. This paper presents a versatile methodology for representing such state-of-the-art CNC machining system resources. A machine tool model is a conceptual representation of the real machine tool and provides a logical framework for representing its functionality in the manufacturing system. There are several commercial modelling tools available in the market for modelling machine tools. However, there is no common methodology among them to represent the wide diversity of machine tool configurations. These modelling tools are either machine vendor specific or limited in their scope to represent machine tool capability. In addition, the current information models of STEP-NC, namely ISO 14649, can only describe machining operations, technologies, cutting tools, and product geometries. However, they do not support the representation of machine tools. The proposed unified manufacturing resource model (UMRM) has a data model which can fill this gap by providing machine specific data in the form of an EXPRESS schema and act as a complementary part to the STEP-NC standard to represent various machine tools in a standardized form. UMRM is flexible enough to represent any type of CNC machining centre. This machine tool representation can be utilized to represent machine tool functionality and consequential process capabilities for allocating resources for process planning and machining.
机译：任何制造系统的能力主要取决于其可用的机床。因此，机床表示是任何制造系统建模的重要组成部分。随着计算机数控（CNC）机器的飞速发展，机床表示比以往任何时候都更具挑战性。当今的CNC机床不仅仅是自动化制造机床，因为它们被认为是多功能，多任务和混合加工中心。本文提出了一种通用的方法来代表这种最先进的CNC加工系统资源。机床模型是真实机床的概念表示，并提供了逻辑框架来表示其在制造系统中的功能。市场上有几种可用于建模机床的商业建模工具。但是，它们之间没有通用的方法来表示机床配置的广泛多样性。这些建模工具要么是特定于机器供应商的，要么是其代表机器功能的范围受到限制。此外，STEP-NC的当前信息模型（即ISO 14649）只能描述机加工操作，技术，切削工具和产品几何形状。但是，它们不支持机床的表示。提议的统一制造资源模型（UMRM）具有一个数据模型，可以通过以EXPRESS模式的形式提供特定于机床的数据来填补这一空白，并充当STEP-NC标准的补充部分，以标准化的形式代表各种机床形成。 UMRM足够灵活，可以代表任何类型的CNC加工中心。该机床表示可以被用来表示机床功能和相应的工艺能力，以分配用于工艺计划和加工的资源。

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