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1. 发明授权

US07007531B2 Forming tool for hydromechanically deep-drawing workpieces from sheet metal blanks 失效
标题翻译：用于从金属板坯料进行机械深冲工件的成型工具
公开(公告)号：US07007531B2
公开(公告)日：2006-03-07
申请号：US10469582
申请日：2002-02-22
申请人： Christian Donhauser , Wolfgang Rauh
发明人： Christian Donhauser , Wolfgang Rauh
IPC分类号： B21D39/08 , B21D22/10
CPC分类号： B21D22/205 , Y10T29/49805
摘要： A forming tool (1) for hydromechanically deep-drawing workpieces from sheet metal blanks (2), the tool comprising a water tank (3), which acts as a lower tool and can be filled with a liquid active medium (8), thus forming the drawing die. The tool is also provided with a drawing ring (10), which is located in the upper section of the water tank (3) and is sealed against a volume of the active medium lying below. The boundary of the ring aperture (11) of the drawing ring (10) forms a drawing edge for the workpiece (2). The forming tool also comprises a drawing punch (9), which can be displaced with the sheet metal blank (2) interposed, through the ring aperture (11) of the drawing ring (10) into the section containing the active medium (8), whereby the sheet metal blank is pressed onto the drawing punch (9) using a reaction pressure as the application pressure, by means of a targeted displacement of the active medium (8). According to the invention, a water tank insert (14), which can be filled with active medium (8) to leave free the remaining water tank volume, can be positioned in the water tank (3), whereby the ring section of the drawing ring (10) lies tightly on the upper edge of the lateral walls (15, 16, 19, 20) of the insert.
摘要翻译：一种用于从金属板坯（2）进行液力机械深加工的成形工具（1），该工具包括用作下部工具并且可以填充有液体活性介质（8）的水箱（3），因此形成拉丝模。该工具还设置有一个位于水箱（3）的上部中的拉环（10），并与一个下方的活动介质的体积密封。拉环（10）的环形孔（11）的边界形成工件（2）的拉拔边。该成型工具还包括一个拉拔冲头（9），可以将金属板坯（2）插入穿过拉伸环（10）的环形孔（11）而移动到包含活性介质（8）的部分中，由此通过活性介质（8）的目标位移，使用反应压力作为施加压力将金属板坯料压在拉拔冲头（9）上。根据本发明，可以在水箱（3）中定位能够填充有活性介质（8）以释放剩余水箱容积的水箱插入件（14），由此图中的环形部分环（10）紧紧地位于插入件的侧壁（15,16,19,20）的上边缘上。

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