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铁道车辆的冲击座(图1),材质为ZG25、重40kg,在两个垂直方向上,分布有4-φ24mm和6-φ21.5mm孔。使用两工位钻模,即可一次完成诸孔的钻削。因工件较重,夹具结构设计便于使用平衡吊。在图2所示位置,将平衡吊的钳形吊钩勾在工件两外侧方孔中,工件吊置于两支承杆32上。用扳手顺时针转动双作用凸轮1,凸轮曲线部分推动滚轮22、使左右两个伸缩轴17同时进入工件的方孔中,由滚轮16托起工件,使它离开支承杆32。把吊钳移开,顺时针转动锥形轴3,锥体的轴向位移将焊
Rail vehicle impact seat (Figure 1), made of ZG25, weight 40kg, in the two vertical directions, the distribution of 4-φ24mm and 6-φ21.5mm hole. The use of two-station drilling, you can complete all the holes drilling. Due to heavier workpieces, the fixture design is easy to use. In the position shown in FIG. 2, the pliers hooks of the balance hanger are hooked on the square holes on the two outer sides of the workpiece, and the workpieces are suspended on the two support rods 32. Turn the double-acting cam 1 clockwise with a wrench. The cam curve part pushes the roller 22 so that the left and right telescopic shafts 17 enter into the square hole of the workpiece at the same time. The roller 16 lifts the workpiece away from the supporting rod 32. Remove the hanging tongs and turn the conical shaft 3 clockwise, the axial displacement of the cone will be welded