公开(公告)号：US20150068261A1

公开(公告)日：2015-03-12

申请号：US14484949

申请日：2014-09-12

申请人： Commonwealth Scientific and Industrial Research Organization

发明人： Anthony Ross Forsyth

IPC分类号： B21D37/10 ,  B21D37/04 ,  B21D11/08 ,  B21D53/00

CPC分类号： B21D37/10 ,  B21D11/085 ,  B21D25/00 ,  B21D25/02 ,  B21D31/04 ,  B21D37/02 ,  B21D37/04 ,  B21D53/00 ,  B21D53/883

摘要： This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.

摘要翻译： 本发明涉及一种主动可重构拉伸成形工具，另一方面，本发明是一种拉伸成型方法。 该工具包括可扩展形状元件的阵列，其被延伸地驱动以在形状形成期间在整个工件上产生与单位面积相同的力。 限位开关阵列位于形状形成元件阵列的前面，使得形状成形元件在形状成形期间朝着相应的限位开关延伸地驱动。 在使用中，每个限位开关在成形时由工件激活，并且每个开关在启动时防止相应的被驱动元件的进一步延伸。 该工具和方法可用于在实心金属板或网状物中形成三维形状，以产生用于反射器天线的面板。