我所在开发研制中需要各种拉力试样,他们多属于细长轴,由于又细又长,用一般的夹具和加工方法难以达到尺寸要求。我们共同构思,利用车床顶尖套,改制了一种夹具,进行辅助夹持,效果很好。 被加工工件见图1,夹具结构见图2。具体结构是将车床顶尖套4中的顶尖取下,换上一专用空心锥度轴和钻夹头3配合,顶尖套4中原孔用钻扩大到所加 I need to develop a variety of tensile test specimens, they are mostly slender shaft, due to thin and long, with the general fixture and processing methods difficult to achieve the size requirements. Our common concept, the use of lathe top sets, the restructuring of a fixture, the auxiliary clamping, the effect is very good. The workpiece is shown in Figure 1, the fixture structure shown in Figure 2. The specific structure is to remove the top of the lathe top sleeve 4, replaced with a special hollow taper shaft and drill chuck 3 with the central hole in the top sleeve 4 to extend the drill to add