矿山连接钢轨用的鱼尾板螺栓,由于形状特殊(图1),加工时夹持固定困难,钳工体力消耗大、板牙损坏快,加工困难,而需要量又不断增加。为此,我们设计制造了一套万向套丝夹具(图2)。该夹具与Z535型立钻配合使用,优点是结构简单,操作方便,易于加工,班产600只以上,提高工效4～8倍。万向套丝夹具上体部份A,由球体1、上 Due to the special shape (Fig. 1), the fish plate bolts used to connect rails in mines are difficult to be clamped and fixed during processing, and the fitters consume a lot of energy, the plate teeth are damaged rapidly, the processing is difficult, and the requirements are constantly increasing. To this end, we designed and manufactured a set of universal wire fixture (Figure 2). The fixture and Z535-type drill used in conjunction with the advantages of simple structure, easy operation, easy processing, production of more than 600 classes to improve efficiency 4 to 8 times. Universal sets silk fixture upper body part A, from the sphere 1, on