单钩自动吊钳(见图1)是利用吊车钩头的上下起落动作而自动进行吊放零部件的夹钳。一、工作原理如图2所示,当楔销5插在导向杆7的卡克下端面而进行起吊时,钳子就处于张开状态。要进行吊取零部件时,即将吊钳放到零部件上,吊车钩头下落,导套9沿导向杆7下移,楔销斜面便沿动锥4上斜面滑动至位置A,钩头提升,动锥4被提起沿导向杆7上移,当 Single hook automatic tongs (see Figure 1) is the use of crane hook up and down movements automatically lifting the parts of the clamp. First, the working principle shown in Figure 2, when the wedge pin 5 inserted in the lower end of the guide rod 7 to lift the clamp, the pliers in the open state. To carry parts to be suspended when the tong will be placed on the parts, crane hooks fall, the guide sleeve 9 along the guide rod 7 down the wedge pin bevel along the bevel 4 slide to position A, the hook lift , The moving cone 4 is lifted along the guide rod 7, when