公开(公告)号：US20050132858A1

公开(公告)日：2005-06-23

申请号：US10885727

申请日：2004-07-08

申请人： Minoru Hayashi ,  Hideo Nakatani ,  Tooru Etsuda

发明人： Minoru Hayashi ,  Hideo Nakatani ,  Tooru Etsuda

IPC分类号： B21D28/00 ,  B21D45/00 ,  B26D5/16

CPC分类号： B21D45/006 ,  Y10T83/8841 ,  Y10T83/8853

摘要： The invention provides inexpensively a pierce die by omitting a large pad at the time of executing a piercing process and pressing a work at only a minimum portion required for the piercing process, thereby reducing the portion to be machined as much as possible. There is provided a punch stripper comprising a pierce punch, a punch retainer holding the pierce punch, a cover which covers the pierce punch so as to protrude a leading end portion of the pierce punch, and is fastened by screws to the punch retainer, a stripper which is outward fitted to the pierce punch, presses the work before piercing the work by the pierce punch, takes out the pierce punch from the work after piercing, is received within the cover so as to move forward and backward, and forms a stop flange in a rear end, and a coil spring which is received within the cover so as to bring the stripper into contact with the stop flange, and energizes the stripper toward an outer side.

摘要翻译： 本发明通过在执行穿孔工艺时省略大的焊盘并且仅在穿孔过程所需的最小部分按压工件，从而尽可能地减少了要加工的部分，从而廉价地提供了一种穿孔模具。 提供了一种冲头剥离器，其包括穿孔冲头，保持冲孔冲头的冲头保持器，覆盖穿孔冲头以使突出冲头的前端部突出的盖子，并通过螺钉紧固到冲头保持架上， 脱皮机向外装配到穿孔冲头，在穿孔冲孔穿刺工件之前对工作进行挤压，穿孔后从工件上取出穿孔冲头，被收纳在盖子内，以便前后移动，形成停止 以及螺旋弹簧，其被容纳在所述盖内，以使所述剥离器与所述止动凸缘接触，并且朝向外侧激励所述剥离器。