在天平调修工作中,遇到玛瑙刀刃损坏或刀刃不锋利时,都需要更换新的玛瑙刀。换新刀一般是借助于刀线平板之类的专用工具,通过肉眼观测来判断两边刀刃前后角与中刀刃线的相对位置是否合乎要求,然后进行调整。但这样做往往收不到理想的效果。在天平厂,安装天平刀时,多使用大型工具显微镜,来调整三刀刃的刀线,但最后还离不开调试人员对安装好的天平进行实际性能测定,并根据测定结果,反复进行精调,才能达到要求。因此,掌握这种测定和调整方法是很重要的。如果两边刀刃前后角相对中刀刃线的高低 Reconciliation work in the balance, the agate blade edge is not damaged or sharp knife, you need to replace the new agate knife. For the new knife is generally used with the help of special tools such as the knife line plate, through the naked eye observation to determine both sides of the front and rear knife edge angle and the relative position of the knife line is satisfactory, and then adjust. But this often can not get the desired result. In the balance factory, the installation of scales knife, the use of large multi-tool microscope to adjust the knife blade, but in the end can not do without the commissioning staff to install the balance of the actual performance measurement, and according to the measurement results, repeated fine adjustment In order to meet the requirements. Therefore, it is important to master this measurement and adjustment method. If both sides of the knife before and after the angle relative to the level of the edge line