主轴径向跳动数字化测量仪表的设计（英文）

发布时间：2018-01-08 10:39

本文关键词：主轴径向跳动数字化测量仪表的设计（英文）　出处：《机床与液压》2016年24期 　论文类型：期刊论文

【摘要】：为了解决指针式仪表在主轴径向跳动测量中无法提供标准电流信号的困难,提出在传统的机械测量机构嵌入一个滑动可变的精密电阻,通过电桥回路将电阻变化量转换成电压信号,利用运算放大器对其电阻值进行线性化处理,从而形成符合国际标准的接口信号,由此建立一个由基础测量、数据处理和实时监控组成的三层网络系统。该网络的功能旨在实现远程数据采集、信号传输、数值计算、图像处理等。将新设计的仪表与标准光栅进行数据比对实验显示,采用特殊修刻工艺制作的可变电阻输出值与线性机械位移量之间可以呈现严格的对应关系,从而为该仪器的实验室研究走向与再制造有关的实际应用奠定基础。研究结果表明:与传统方法相比,新方法更加注重采集大量的数据,形成合适的样本集合并建立对应的数学模型。通过构造的曲线与观测点的拟合情况来进一步优化模型,并对今后的变化趋势进行预测,这样可以检测出隐匿很深的内部缺陷,从而为指导维修工作提供有价值的参考信息。
[Abstract]:In order to solve the difficulty of not providing standard current signal in radial runout measurement of spindle, a sliding variable precision resistor is embedded in the traditional mechanical measuring mechanism. Through the bridge circuit, the resistance change is converted into voltage signal, and the resistor value is linearized by using the operational amplifier to form the interface signal which conforms to the international standard, and a basic measurement is established. A three-layer network system composed of data processing and real-time monitoring. The function of the network is to realize remote data acquisition, signal transmission and numerical calculation. Image processing and so on. Comparing the data between the newly designed instrument and the standard grating shows that the output value of the variable resistance and the linear mechanical displacement produced by the special trimming process can show a strict correspondence. The results show that compared with the traditional method, the new method pays more attention to collecting a large amount of data. A suitable set of samples is formed and a corresponding mathematical model is established. The model is further optimized by fitting the constructed curves with the observation points and the future trends are predicted. In this way, hidden deep internal defects can be detected, thus providing valuable reference information for guiding maintenance work.
【作者单位】：杭州职业技术学院;
【基金】：supported by Science and Technology Innovation Activity Plan for Zhejiang College Students (No. 2015R452003) the Hangzhou Education Bureau (No. JP2013-23)
【分类号】：TG659;TH702
【正文快照】： 1 Introduction Remanufacturing is a rebuilding process that the original manufactured product should be reused,repaired and replaced by new parts[1].It more emphasizes the use of measurement tools than the equipment maintenance works in the traditional

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