摘要
针对机床高速旋转主轴的安装偏心及各种外界干扰对热误差精确测量的影响,本文选用了精度较高的电容式位移传感器及NI数据采集卡,基于LabVIEW平台开发了一套机床温度和位移数据实时检测系统。该检测系统可实现在主轴高速旋转下位移数据的高速率采样,并采用软件数字滤波方法对位移数据处理。最后将该检测系统进行实验测量,实验结果表明该检测系统具有一定的实用性。
Based on the LabVIEW platform,the paper develops a new machine tool thermal error real-time measurement system by using high-precision capacitive displacement sensor and NI Data Acquisition Card to meet the effects of the spindle bais and exter nal interference in the high-speed rotation. The system adopts IIR filter which can effectively eleminite outside interference factors to acquire data in high sampling rate.Finally,the system has been applied to measure the machine tool spindle thermal error in the experiment and its feasibility are proved.
出处
《微计算机信息》
2010年第13期99-100,98,共3页
Control & Automation
基金
申请人:迟玉伦
项目名称:导轨热误差的在线测量和实时补偿加工系统
颁发部门:上海市教委(JWCXSL0802)
国家科技重大专项项目资助(2009ZX04002-071)
关键词
机床热误差
虚拟仪器
数据采集
数字滤波
machine tool thermal error
virtual instruments
data acquisition
