本发明给出的切断弯曲方法是:在向下的行程中,同时进行切断和弯曲加工;二次弯曲则是在回程中由同时动作的凸轮(5)完成.利用这种方法,在一个装置内能同时进行切断弯曲加工和进一步的弯曲加工.工件在模具(8)和(9)上定位,图中(8)、(9)、(12)、(13)、(14)是固定的.冲头(2), The cut-off bending method given by the present invention is that the cut-off and bending are carried out simultaneously in the downward stroke and the second-order bending is done in the return stroke by the cam (5) which simultaneously operates. In this way, The inside of the mold can be cut and bent at the same time and the bending process can be further carried out. The work piece is positioned on the molds (8) and (9). The figures (8), (9), (12), Punches (2),