数控机床的能耗模型及实验研究

来源期刊:中南大学学报(自然科学版)2017年第8期

论文作者:李涛 XU Jing-wu(徐敬武) 陈俊超 杨淑霞 张洪浩

文章页码:2024 - 2034

关键词:数控机床;能耗模型;节能;低碳制造

Key words:numerical control machine tool; energy consumption model; energy efficiency; low-carbon manufacturing

摘    要:为了预测与评估数控机床能耗,提高机床能量利用率,对数控机床的能耗特性展开研究。根据机床能耗部件的特性,将数控机床整机能耗分解为4个部分:主传动系统空载能耗、进给系统空载能耗、辅助系统能耗、切削能耗(包含刀刃去除材料能耗和附加载荷损耗)。依据耗能机理和实验统计规律分别对这4个部分进行建模,进而建立机床整机一般能耗模型。在1台立式加工中心上开展相关能耗实验,将能耗模型应用于该机床的能耗研究分析。研究结果表明:机床能耗模型具有较好的适用性,可以较准确地预测机床能耗及其分布情况,这为机加工系统的能耗评估、节能优化以及低碳制造提供依据。

Abstract: In order to predict and assess the energy consumption of numerical control (NC) machine tools, as well as improve the energy efficiency, energy consumption characteristics of NC machine tools were studied. Based on energy-consuming characteristics, the energy consumption of NC machine tools was divided into four sections: no-load energy consumption of the main driving system, no-load energy consumption of the feed system, energy consumption of auxiliary systems, and energy consumption of the machining process, including tool tip cutting energy consumption and additional energy losses. Each section was modeled on the basis of energy-consuming mechanisms and experimental statistics, so as to form the general energy consumption model of the entirety. Then experiments were conducted on a vertical machining center to study energy consumption rules using the model. The results show that the model has good applicability, and can accurately predict the NC machine tool’s energy consumption and its distribution. Thus the energy consumption model is able to provide support for energy assessment and energy efficiency optimization of machining systems, which will contribute to low-carbon manufacturing.

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