In this paper, it researches that U shape ring is replaced with duckbill cross-pin fixture.It is chucked by flat pliers in experiment, intensity proof test is proceeded in the late-model.

• 研究了利用鸭嘴插销式夹具代替用U型环作中介,平板钳口夹持(以下简称U型夹具)进行试验,并对新型夹具进行了强度校核。