我厂生产的六拐曲轴如图1所示,按工艺要求应采用摇臂钻在曲轴配套重块上钻孔去重。但生产线上没有摇臂钻,只有Z535立式钻床,不能适应生产需要,为此我们设计了可调夹具,在立式钻床上加工曲轴各配重块。 可调夹具的结构如图所示,它由导轨4,架轮8、齿轮9、齿条10、手轮11等件组成。夹具体5上有T型槽,V型块6用T型螺栓固定在夹具体上,夹具座1 I produced six crankshaft crankshaft shown in Figure 1, according to process requirements should be used rocker arm on the crankshaft supporting the weight of the drill hole to heavy. However, there is no rocker drill in the production line. Only the Z535 vertical drilling machine can not meet the production needs. Therefore, we designed adjustable clamps to process the crankshaft weights in the vertical drilling machine. Adjustable fixture structure as shown, it consists of rail 4, 8 wheels, gear 9, rack 10, hand wheel 11 and other components. Clamp body 5 has a T-shaped groove, V-shaped block 6 T-bolts fixed on the clamp body, the clamp base 1