钻模(图23)和铣削夹具(图24) 这两种工具在结构上和工件定位上是相似的。但是可以看出图23是一种具有钻套的钻模板,而图24中所示的为一铣削夹具,露出工件的上端面以进行加工。两种工具的主视图均显出工件是怎样通过其内孔在心轴上定位,并相对定位支钉将其夹紧。可以看出左、右对称的工件都可以在这种工具上加工。两图的右下侧的图例显示出这种工具有二根心轴,因而左向和右向的工件可以同时加 Both the tooling (Figure 23) and the milling fixture (Figure 24) are similar in construction and workpiece positioning. However, it can be seen that Figure 23 is a drill template with a drill collar, and Figure 24 shows a milling fixture that exposes the upper end surface of the workpiece for processing. The front view of both tools shows how the workpiece is positioned on the mandrel through its bore and clamps the pin relative to the pin. It can be seen that left and right symmetrical workpieces can be machined on this tool. The illustration on the lower right of the two figures shows that this tool has two spindles, so left and right workpieces can be added at the same time