数控机床热特性实验方法研究

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英文篇名：Experimental Method Research of CNC Machine Tool Thermal Characteristics 作者：刘洋 ; 陈秀梅 ; 杨庆东 ; 张世珍 英文作者：LIU Yang;CHEN Xiumei;YANG Qingdong;ZHANG Shizhen;School of Mechanical Electrical Engineering, Beijing Information Science & Technology University;Beijing Precision Machinery & Engineering Research Co.,Ltd.; 关键词：数控机床 ; 热变形 ; 温度采集 ; 切削液 ; 轴向伸长量 英文关键词：CNC;;Thermal deformation;;Temperature collection;;Cutting fluid;;Axial elongation 中文刊名：JCYY 英文刊名：Machine Tool & Hydraulics 机构：北京信息科技大学机电工程学院;北京工研精机股份有限公司; 出版日期：2019-02-15 出版单位：机床与液压 年：2019 期：v.47;No.477 基金：国家科技重大专项(2013ZX0400-1061);; 北京市科技计划项目课题(D171100005717001) 语种：中文; 页：JCYY201903015 页数：5 CN：03 ISSN：44-1259/TH 分类号：81-85

摘要

随着中国制造2025的提出,智能制造对数控机床精度要求越来越高,机床热变形是影响加工精度的主要因素之一。从采集机床温度和主轴变形的角度,设计了温度及主轴变形采集方案,选用螺旋入孔式和磁吸式温度传感器,测量机床热源内部和表面温度,选用电涡流传感器测量主轴径向偏移量和轴向伸长量,采集了干切削和添加切削液两种加工环境下的主轴温度。分析可知,机床主轴电机温升最高,切削液能够带走大量切削热,有效减小切削热对主轴的影响,主轴转速越高温度越高,轴向伸长量越大。
        Made in China 2025 has been proposed. Intelligent manufacturing has higher and higher requirements on the precision of CNC machine tools. The thermal deformation of machine tool is a prominent factor affecting the machining precision. From the angle of collecting the temperature of the machine tool and the deformation of the spindle, the collection schemes of the temperature and the deformation of the spindle were designed. The screw into the hole type and magnetic type temperature sensor were selected to measure the internal and surface temperature of heat source.The electric eddy current sensor was selected to measure the radial offset and axial elongation of the spindle. The main shaft temperature of the two processing environments of dry cutting and adding cutting fluid was collected. In conclusion, the temperature rise of spindle motor is the highest. Cutting fluid can take away a lot of heat in cutting, which effectively reduces the influence of heat in cutting on spindle.The higher the spindle speed, the greater the temperature and axial elongation.

引文

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