论文部分内容阅读
四、导轨相对工件旋转轴线的平行度和工件轴线径向运动误差的测量及算法对于通过测量工件半径来测量圆度,圆柱度的仪器来说,虽然影响测试精度的因素有很多,例如:测头的安装精度,仪器的分度误差以及工件的安装偏心等。但可以证明这些误差的影响都不大,而影响测试精度的主要因素有两个。一个是导轨相对工件旋转轴线的平行度误差,另一个是工件旋转轴线的径向运动误差。这两项误差都一比一地反映为实测半径的变化,所以是圆度、圆柱度测量中最应该予以消除的误差。然而在实际测量工作中上述两项误差的
Fourth, the workpiece relative to the guide rail axis of rotation parallelism and workpiece axis radial movement error measurement and algorithm for measuring the radius of the workpiece to measure the roundness, cylindrical degree of the instrument, although the impact of test accuracy of many factors, such as: test Head of the installation accuracy, the instrument of the error and workpiece installation eccentricity and so on. However, it can be proved that these errors have little effect, and there are two main factors that affect the test accuracy. One is the parallelism error of the guide rail relative to the rotation axis of the workpiece, and the other is the radial movement error of the workpiece rotation axis. These two errors are reflected one by one as a change in the measured radius, it is roundness, cylindricity measurement should be eliminated the most error. However, in the actual measurement of the above two errors