有许多零件都是经过冷冲压成碗形,工艺要求工件冲压成形后,由车床加工到尺寸。由于工件呈碗形,壁很簿,因此在车削外径时,夹持比较困难,工件容易变形。根据工件的形状和工艺要求,我们改制了一种专门夹持碗形工件,在车削外径时使用的半自动胀芯夹具,如图1所示。 There are many parts are cold stamping into a bowl, the process requirements of the workpiece after stamping, lathe processing to the size. As the workpiece was bowl-shaped, the wall is very book, so turning outside diameter, clamping more difficult, the workpiece easily deformed. According to the shape of the workpiece and process requirements, we have adapted a special holding bowl-shaped workpiece, the turning diameter of the semi-automatic use of core expansion clamp, as shown in Figure 1.