对于薄板零件花键孔的拉削是比较困难的。因为壁薄,所以刚性差。单件拉削花键孔时,孔的周围发生变形,有的齿部变形则更为严重,造成废品。为此,我们设计出薄板件拉削花键孔夹具,把许多件重叠在一起,装在夹具内,用端盖和螺钉压紧。采用这种方法可提高工件的强度,在拉削过程中不会引起工件变形,提高了效率,保证了质量。在设计夹具时应注意: Broaching spline holes for sheet metal parts is more difficult. Because the thin wall, so poor rigidity. Broaching a single spline hole, the hole around the deformation, and some deformation of the tooth is even more serious, resulting in waste. To this end, we have designed a thin-plate broaching spline hole jig, a number of pieces overlap, installed in the fixture, with end caps and screws. Using this method can improve the strength of the workpiece, the workpiece will not be deformed in the broaching process, improve efficiency, and ensure the quality. In the design of fixtures should pay attention to: