论文部分内容阅读
根据测量条件及被测件的形状、位置、尺寸的情况,制造一些百分表的专用测量头,安装在竖直表架上使用,可消除由于安装不当而造成的误差。图1a可用于测量工件的外径径向跳动。由于表头测量面带刀口形,保证了刀口与圆始终相切,且与中心连线垂直。这种表头用于测量带齿形的等分或不等分圆的径向跳动很方便,如铰刀类。图1b测量头适用测量各种台阶孔和槽(见图2)。图1c可用于同一基准面零件的测量。使用时必须将百分表反装在表架上然后测量(见图3)。图1d用于测量如图4所示的工件,如橡胶模具中
According to the measurement conditions and the shape, location and size of the tested part, some special measuring heads of the dial indicator are manufactured and installed on the vertical stand to eliminate the error caused by improper installation. Figure 1a can be used to measure the diameter of the workpiece radial runout. As the measuring head with a knife edge shape, to ensure that the knife edge and the circle is always tangent, and the vertical connection with the center. This header is useful for measuring the radial runout with teeth that are equally divided or unequal, such as reamers. Figure 1b measuring head suitable for measuring a variety of step holes and slots (see Figure 2). Figure 1c can be used to measure the same datum part. When using the dial indicator must be mounted on the table and then measured (see Figure 3). Figure 1d is used to measure the workpiece shown in Figure 4, such as a rubber mold