Abstract: In the process of machining, in order to further improve the accuracy of cylindricity measurement and standardize the measurement, the factors affecting the accuracy of cylindricity measurement are studied, and the influence of the selection of Gaussian filter range on the measurement results is obtained. Suitable Gaussian filter range is selected for different cylindrical diameters. The tangent and complement method is used to eliminate the boundary effect in the process of Gaussian filtering. At the same time, the selected section number and axial effective measurement length are explored, and a reasonable selection number and axial effective measurement length are obtained. By optimizing the above factors affecting the cylindricity measurement accuracy, a set of standardized and reasonable inspection methods are provided to improve the cylindricity measurement accuracy in the production process and ensure the reliability of test results, which is of great significance to the quality control of products.

Key words: Inner hole cylindricity; Gaussian filter; Cylindricity measurement; Number of sections; Effective measuring length

摘要： 在机械加工过程中，为进一步提高圆柱度检验精度，标准化规范化检验，通过对影响 圆柱度检测精度的因素进行研究，得出高斯滤波范围选取对测量结果的影响，针对不同圆柱 直径选取适合的高斯滤波范围；同时对测量选取截面数以及轴向有效测量长度进行探究，得 出了合理的选取数量及轴向有效测量长度。通过对上述影响圆柱度检测精度的因素进行优化， 提供一套规范合理的检验方法，提升生产过程中圆柱度检测精度，保障检测结果的可靠性， 对产品的质量控制具有重要意义。

关键词: 内孔圆柱度；高斯滤波；圆柱度检测；截面数；有效检测长度