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图1中,1是卡夹体。上闸块4由轴3连接在卡头体上。7是手柄,当手柄向右旋转时,迫使斜面5把拉刀尾部夹紧。当手柄向左旋转时,垫块6沿斜面滑动,同时弹簧8把上闸块顶起,松开卡头。图2是过渡心轴,心轴的圆柱部分,可以插入卡头左端的孔内,并用楔2销住;另一端是旋入拉床螺孔用的螺母紧。卡头制成两种尺寸,但具有不同大小的中间闸瓦,如图3和表1,达祥可以适用于不同大小的拉刀。
In FIG. 1, 1 is a clip body. The brake block 4 is connected to the chuck body by a shaft 3. 7 is the handle, when the handle is rotated to the right, forcing the ramp 5 to clamp the broach tail. When the handle is rotated to the left, the pad 6 slides along the slope, and at the same time, the spring 8 lifts the upper gate to release the chuck. Figure 2 is a transitional mandrel, the cylindrical part of the mandrel, can be inserted into the hole at the left end of the chuck and pin wedge 2 live; the other end is threaded into the screw nut tighten the bed. The chuck is made in two sizes, but with different sizes of intermediate brake shoes, as shown in Figure 3 and Table 1, which can be applied to broaches of different sizes.