公开(公告)号：US06568306B2

公开(公告)日：2003-05-27

申请号：US09892473

申请日：2001-06-28

申请人： John William White

发明人： John William White

IPC分类号： B26F114

CPC分类号： B23D35/008 ,  B21D28/34 ,  B26F1/0015 ,  Y10S83/916 ,  Y10S83/954 ,  Y10T83/0596 ,  Y10T83/384 ,  Y10T83/395 ,  Y10T83/40 ,  Y10T83/9423

摘要： A punching unit for punching holes of a selected geometry in a wall of a component. The punching unit has a frame for supporting the component and the tool and die assembly releaseably securable to the frame. Tool and die assembly has a punch operatively coupled to a mandrel and a male die member and a female die member cooperating to form the hole in the wall. A portion of the tool and die assembly is interchangeable to provide a selected one of a plurality of predetermined hole geometries for the component.