活节螺栓是阀体的零件之一,需在活节螺栓上钻孔,我厂原用台钳夹紧,打钻眼再钻孔,工艺比较落后。为此,我们制作一种钻孔夹具。此夹具能将钻套3(附图)与夹紧装置的旋紧螺栓2联成一体。用扳手1将旋紧螺栓2旋紧,夹紧工件后即可钻孔。为防止工件旋转,在底座6上设一个止位柱7,有效地保证了零件顺利加工。工件是由定位块4 Active bolt is one of the parts of the body, need to drill holes in the living bolts, I used to clamp the factory vise, drill holes and then drilling, the technology is relatively backward. To this end, we make a drilling fixture. This clamp can integrate the drill collar 3 (picture) with the tightening bolt 2 of the clamping device. Use the wrench 1 to tighten the tightening bolt 2 and drill the hole after clamping the work piece. In order to prevent the workpiece from rotating, a stop post 7 is arranged on the base 6, which effectively ensures the smooth machining of the part. The workpiece is positioned by the positioning block 4