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内孔为曲线形或不规则形的工件(图1),用图2所示的夹具在车床上加工,不仅精度高,而且效率也高。如在镗床上加工静压轴承油腔部分的R圆弧,需8h,而使用本夹具在c620车床上加工,只需20min。夹具利用靠模2来进行加工,靠模按工件形状尺寸的比例制成凸形(图3)。靠模安装在车床法兰1上,并用螺栓紧固。夹具的其余部分,都安装在车床刀架处(拆下车床原刀架)。工件固定在靠模上,靠模上设有压板5,夹具体4上装有两根轴15,轴与轴孔的配合精度为H6/h5,两轴孔中间设有两
The bore is a curvilinear or irregularly shaped workpiece (FIG. 1), which is machined on a lathe with the clamp shown in FIG. 2, not only with high precision but also with high efficiency. Such as the processing of static pressure bearing oil chamber part of the R arc, take 8h, and the use of the fixture in the c620 lathe machining, just 20min. Fixture 2 is used to carry out machining by the mold by the workpiece shape and size ratio of convex (Figure 3). Mounted on the lathe flange 1 and bolted. The rest of the fixture, are installed in the lathe turret (remove the original lathe turret). The workpiece is fixed on the mold, the mold is provided with a pressure plate 5, the clamp body 4 is equipped with two shafts 15, the shaft and the shaft hole with the accuracy of H6 / h5,