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从加工发动机摇臂的夹具示意图1中可见,零件的定位夹紧是通过Г型压板1实现的。在该压板的前端,有三个带45°斜面的自定心压爪。这是既简单、又合理的结构。但是,Г型压板用φ6_(0.3)~0,的导向销作角度定位(图1中件2),相应轴上的导向槽宽为6_0~(+0.2)。这样两者之间形成的间隙,最大可达0.5mm。若Г型压板的轴径为0=25mm,轴心至三个压爪中心的距离为 L=45mm,则 L/D/2=3.6。这说明仅由于
From the processing of the engine rocker clamp diagram 1 can be seen, the parts of the clamping position by Г type plate 1 to achieve. At the front of the pressure plate there are three self-centering pressure dogs with a 45 ° bevel. This is a simple and reasonable structure. However, Г type pressure plate with φ6_ (0.3) ~ 0, the guide pin for angle positioning (Figure 1, part 2), the corresponding guide groove width 6_0 ~ (+0.2). This gap formed between the two, up to 0.5mm. If the Г-type platen shaft diameter 0 = 25mm, the distance from the axis to the center of the three claws L = 45mm, then L / D / 2 = 3.6. This is explained only by