CAJ | 학술논문

根据机床系统的能量守恒原理，提出了一种数控车床加工过程能耗精确评估方法。参照机床系统的能量流分布，分离各能量分支的功耗，对各分支分别独立建模，最终建立数控车床系统能耗与主轴转速、进给量和材料去除率之间的函数关系。由于各分支系统建模的独立性，使得能耗模型不仅适用于数控车床系统稳定切削阶段，也适用于稳定的待机、空转和空切阶段。实验结果显示，车削过程能耗评估精度超过98%。在该方法的基础上，进一步提出改进型的机床系统单位体积能耗模型。
근거궤상계통적능량수항원리，제출료일충수공차상가공과정능모정학평고방법。삼조궤상계통적능량류분포，분리각능량분지적공모，대각분지분별독립건모，최종건립수공차상계통능모여주축전속、진급량화재료거제솔지간적함수관계。유우각분지계통건모적독립성，사득능모모형불부괄용우수공차상계통은정절삭계단，야괄용우은정적대궤、공전화공절계단。실험결과현시，차삭과정능모평고정도초과98%。재해방법적기출상，진일보제출개진형적궤상계통단위체적능모모형。
Based on the principle of conservation of energy,an accurate assessment model of energy consumption for NC turning operation was presented.According to the energy flow of machine tool system,the power of each energy branch was separated.After modeling every branch,a function was built among energy consumption and spindle speed,feed rate and material removal rate.Because of the independence of these branches,the energy consumption model suited to the stable cutting stage,and to the stable standby and idle and cutting-free stages.The accuracy of this method is confirmed over 98% by a series of turning experiments.On the strength of this method,an improved model of specif-ic energy consumption was developed.