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Evaluating Safety Systems for Machine Tools with Computer Numerical Control using Analytic Hierarchy Process

机译：基于层次分析法的计算机数控机床安全系统评估

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Computer numerical control (CNC) machine tools are complex production systems with fully automatic machine parts. Nowadays, high feed rates and machining speeds are used during the machining process. Human operators are still needed to set-up the machine, load/unload workpieces and parts, load the machining code, and supervise the machining process. The operators work in an environment where automated high-speed motions occur, and consequently, CNC machine tools have to be equipped with safety systems. The approach presented in this paper was to evaluate the main safety systems of CNC machine tools based upon the analytic hierarchy process (AHP). The analyzed systems were divided into six main categories and compared pairwise using five criteria proposed by the authors. The approach and the obtained results significantly relied upon the situation found at the industrial company used as a benchmark for the research. The analysis reveals that, among considered safety devices, manually operated controls are the most efficient ones. Finally, a sensitivity analysis was conducted to test the stability of the AHP solution.
机译：计算机数控（CNC）机床是具有全自动机床零件的复杂生产系统。如今，在加工过程中使用了高进给率和加工速度。仍然需要人工来设置机器，装载/卸载工件和零件，装载加工代码并监督加工过程。操作员在自动高速运动发生的环境中工作，因此，数控机床必须配备安全系统。本文提出的方法是基于层次分析法（AHP）评估CNC机床的主要安全系统。分析的系统分为六个主要类别，并使用作者提出的五个标准进行成对比较。该方法和所获得的结果在很大程度上依赖于作为研究基准的工业公司的情况。分析表明，在考虑到的安全装置中，手动控制是最有效的。最后，进行灵敏度分析以测试AHP溶液的稳定性。

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