薄壁轴承外径非接触测量仪设计开发

发布时间：2018-08-19 11:54

【摘要】：薄壁轴承套圈是轴承零件系列中壁厚较薄的一种,其检测精度要求极高。在成品测量过程中,现有的轴承专用检测仪器存在一定的局限性,第一,可能会由于套圈的弹性变形得不到准确的测量结果;第二,传统的接触式测量可能会对轴承表面造成划伤,影响产品质量;第三,受测量原理的限制,无法一次完成多个参数的测量。因此,为了能够得到更加准确的测量结果,需要开发一种新型测量仪器,完成薄壁轴承套圈的高精度测量。本文以薄壁轴承的非接触测量仪器和非接触测量方法为研究对象,在理论研究的基础上,利用误差分离技术、计算机技术以及OpenGL图像技术,对测量软件框架、测量系统、图形重构等内容展开研究。对薄壁类精密零件的特性做了分析,并对其测量手段、圆柱度误差的分离计算方法进行了对比分析,最终将三点法作为研究重点以及新型仪器的测量方法。按照非接触测量的要求和三点法测量原理,拟定了薄壁轴承外径非接触测量仪的测量方案,并对YZD-400型圆柱度测量仪进行了改造,使之适用于三点法测量。利用C#语言在Microsoft Visual Studio2010环境下编写了圆柱度误差的分离计算软件,生成可操作的界面,软件包含运动控制、数据采集、误差分离、图形重构等功能,并利用OpenGL图形技术重构出圆柱体形貌特征。最后进行了实验测量,经过对标准件圆度误差的多次测量,结果与标准件所标注精度一致,又与原装传感器做了对比测量实验,两者的测量结果相互符合,证明了新型仪器达到了所要求的测量精度,满足了测量需求。该仪器的成功研制对于检验薄壁套圈类产品质量,有效地提高产品合格率,具有一定的应用价值。
[Abstract]:Thin-wall bearing ring is a kind of thin wall thickness in bearing parts series, and its detection precision is very high. In the process of measuring the finished product, the existing special measuring instruments for bearing have some limitations. First, the elastic deformation of the ring may not get accurate measurement results; second, The traditional contact measurement may cause scratches on the bearing surface and affect the product quality. Thirdly, the measurement of multiple parameters can not be completed at a time because of the limitation of the measuring principle. Therefore, in order to obtain more accurate measurement results, it is necessary to develop a new measuring instrument to complete the high-precision measurement of thin-walled bearing rings. This paper takes the non-contact measuring instrument and non-contact measuring method of thin-walled bearing as the research object. On the basis of theoretical research, using error separation technology, computer technology and OpenGL image technology, the measurement software frame and measurement system are analyzed. Graphics reconstruction and other contents of the study. The characteristics of thin-walled precision parts are analyzed, and the measuring methods and the calculation methods of the cylindrical error are compared and analyzed. Finally, the three-point method is taken as the focus of the research and the measuring method of the new instrument. According to the requirements of non-contact measurement and the principle of three-point measurement, the measuring scheme of the non-contact measuring instrument for the outer diameter of thin-walled bearing is worked out, and the YZD-400 type cylindrical measuring instrument is modified to be suitable for three-point measurement. Using C # language in Microsoft Visual Studio2010 environment, the separation and calculation software of Cylindricity error is written, which can generate an operable interface. The software includes the functions of motion control, data acquisition, error separation, graph reconstruction, and so on. The shape of the cylinder was reconstructed by OpenGL technique. Finally, the experimental measurement is carried out. After several measurements of the roundness error of the standard parts, the results are consistent with the precision of the standard parts, and the results are compared with those of the original sensors. The results of the two measurements are in accordance with each other. It is proved that the new instrument achieves the required precision and meets the requirement of measurement. The successful development of the instrument has certain application value for testing the quality of thin-walled ring products and effectively improving the qualified rate of products.
【学位授予单位】：河南科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH133.3;TG835

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