公开(公告)号：EP0815979A2

公开(公告)日：1998-01-07

申请号：EP97111057.2

申请日：1997-07-02

申请人： AMADA METRECS COMPANY, LIMITED

发明人： Ootsuka, Yasuyuki

IPC分类号： B21D28/34 ,  B21D45/00

CPC分类号： B21D45/006 ,  Y10T83/2155 ,  Y10T83/2157 ,  Y10T83/9423 ,  Y10T83/9428 ,  Y10T83/9476

摘要： There is provided a method comprising a process of lightly fitting a distal end portion of a projecting portion 25 of a blank holder 23 into a fitting groove 19 formed in a punch guide 5 so as to be momentarily held therein; and a process of fitting the projecting portion 25 of the blank holder 23 into the fitting groove 19 while punching a punch guide hole 23G in the blank holder 23 when a punching portion 7 of a punch body 9 of a punch assembly 1 is lowered for pressing the blank holder 23 against a die D so that the punch guide 5 descends. In the punch assembly 1 constructed in a manner that the punch body 9 is vertically movably housed in a punch guide 5, and the blank holder 23 is removably fitted into the fitting groove formed in the punch guide 5, the punch guide 5 and the blank holder 23 are formed with an inclined plane 5S and an inclined plane 23S at part of an outer peripheral face on the lower end portion of the punch guide 5 or part of an upper face of a flange of the blank holder 23, respectively.

摘要翻译： 提供了一种包括轻轻拟合坯料夹持器23的突出部25的前端部插入在冲头导5，从而在其中被暂时保持所形成的嵌合槽19的过程的方法; 和坯料夹持器23的突出部25嵌合到嵌合槽19，而在坯料夹持器23时的冲头组件1的冲头主体9的穿孔部7下降按压冲压冲头导向孔23G的处理 坯料夹持器23向A D所以做了冲头导5周下降。 在以这样的方式构造的冲头组件1做的冲头体9可上下移动地设在一座冲头引导件5和坯料夹持器23被可移除地装配到所述冲头引导件5时，冲头导筒5和坯件在所形成的嵌合槽 规划支架23与上倾斜5S和倾斜面的23S在上冲头导筒5或部分分别与坯料夹持器23，一个凸缘的上表面的下端部的外周面的一部分而形成。