ZH110型微型汽车上的转向节(图1)是汽车转向系统上的关键零件。3个悬臂上的3个锥孔对于轮轴轴线的位置度要求较高,所以,中心孔质量的好坏直接影响位置度的要求。下面介绍一次装夹打中心孔的装置。 打中心孔的专用装置结构如图2所示。它由中轴1、铜套3和6、主轴4、手柄5、定位块7、10和 The steering knuckle on the ZH110 miniature car (Figure 1) is a key part of the car’s steering system. The three conical holes on the three cantilevers require a high degree of position on the axle axis. Therefore, the quality of the central hole directly affects the requirements of the position degree. The following describes a device for clamping the center hole. Hit the center of the hole device structure shown in Figure 2. It consists of a central axis 1, copper bushings 3 and 6, a spindle 4, a handle 5, positioning blocks 7, 10 and