为了提高大尺寸外径的尺寸和圆度、圆柱度的测量可靠性,满足机械制造业的需要,这里介绍一种测量工具,可以快而准地测量大尺寸外径的尺寸和圆度、圆柱度。 图1是根据大尺寸外径的尺寸而设计的测量工具。它用V形铁确定大尺寸外径的中心线位置,以A指示表测帽的平面工作面和V形铁与 In order to improve the size and roundness of the large size OD, the reliability of the measurement of the cylindricity, to meet the needs of the machinery manufacturing industry, here is introduced a measuring tool that can quickly and accurately measure the size and roundness of large size OD, cylindrical degree. Figure 1 is designed according to the size of the large size of the measuring tool. It uses the V-shaped iron to determine the centerline position of the large-sized OD, with the A face gauge and the V-shaped face of the cap