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1. 发明授权

US06474126B1 Method of deep drawing heavy-gage parts, and related apparatus and article 有权
标题翻译：深拉厚重部件的方法及相关设备及物品
公开(公告)号：US06474126B1
公开(公告)日：2002-11-05
申请号：US09661949
申请日：2000-09-14
申请人： Robert H. Webster
发明人： Robert H. Webster
IPC分类号： B21D2221
CPC分类号： B21D22/21
摘要： An apparatus and method for deep drawing a heavy gage workpiece into a drawn part. A lower die section includes a die cavity therein and a base mounting surface thereon, and further includes a die radius defined between the base mounting surface and the die cavity. Riser blocks mount to the base mounting surface of the die for supporting the workpiece at a predetermined elevation above the base mounting surface of the die. A punch having an end face is capable of reciprocating past the riser blocks and into and out of the die cavity. The workpiece is located on the riser blocks over the die cavity. The punch is advanced from a retracted position into the die cavity, wherein the end face of the punch contacts the workpiece such that the punch and the riser blocks cooperate to pre-form the workpiece therebetween as the punch moves toward the die, but before the workpiece enters the die cavity. Thus, the punch and riser blocks cooperate upon the workpiece to start metal working in areas of the workpiece that are typically prone to defects, in order to prevent such defects.
摘要翻译：一种将重量具工件深拉入拉伸部件的设备和方法。下模具部分包括其中的模腔和其上的基座安装表面，并且还包括限定在基座安装表面和模腔之间的模具半径。提升块安装到模具的基座安装表面，用于在模具的基座安装表面上方的预定高度处支撑工件。具有端面的冲头能够经过提升块往复运动并且进入和离开模腔。工件位于模腔上的提升块上。冲头从缩回位置进入模腔，其中冲头的端面与工件接触，使得当冲头向模具移动时，冲头和提升管块协作以在其间预先形成工件，但在工件进入模腔。因此，冲头和立管块在工件上协作以在工件的通常易于缺陷的区域中开始金属加工，以防止这种缺陷。

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