在万工显上用影像法测量齿形,由于受物镜视场的限制,一般只能测量齿轮中心孔径在φ20mm以下的小模数齿轮。要想扩大工具显微镜在这方面的使用范围,提高其经济效益,只要借助如图1所示的齿轮孔心定位器,就可以在万工显上很方便地用坐标法测量任何大小中心孔的大模数齿轮。 In the million workers significantly on the use of imaging method to measure the tooth shape, due to the objective lens field of view, generally only measure the gear center hole diameter φ20mm below the small modulus gear. To expand the scope of use of the tool microscope in this area and increase its economic efficiency, simply by using the gear centering locator shown in Figure 1, it is very convenient to coordinate the method of measuring the size of the center hole Large modulus gear.