公开(公告)号：US5390538A

公开(公告)日：1995-02-21

申请号：US101771

申请日：1993-07-30

申请人： Walter E. Spath

发明人： Walter E. Spath

IPC分类号： B21D7/08 ,  B21D9/10 ,  B21D11/22 ,  B21D43/02 ,  B21D7/04

CPC分类号： B21D7/08 ,  B21D9/10

摘要： A roller-mandrel thrust bending process (RDSB process) is described, serving to bend metal hollow sections. Starting from the known rolling-bending process, where the hollow section to be bent is filled in its interior and is run into a bending station consisting of several bending rollers, the bending of the hollow section is produced by the movement of the bending rollers in the bending plane. To preserve the advantages of core stretching and bending while avoiding the high costs of this process, it is provided according to the invention that the hollow section of the workpiece is filled by a base mandrel and that the workpiece is pushed into the bending station under thrust. Thus the workpiece to be bent is displaced under thrust and under the friction force of the profile rollers over the mandrel stationary in the bending zone and bent in XYZ direction by the bending station.

摘要翻译： 描述了用于弯曲金属中空部分的辊心推力弯曲工艺（RDSB工艺）。 从已知的弯曲过程开始，其中待弯曲的中空部分被填充在其内部并且进入由几个弯曲辊组成的弯曲站中，通过弯曲辊的运动产生中空部分的弯曲 弯曲平面。 为了保持芯部拉伸和弯曲的优点，同时避免了该方法的高成本，根据本发明提供了工件的中空部分由基部芯棒填充，并且工件被推入弯曲工位的推力 。 因此，待弯曲的工件在推力下并且在型材辊的摩擦力下在弯曲区域上固定在心轴上并由弯曲台沿XYZ方向弯曲。

公开(公告)号：US5253501A

公开(公告)日：1993-10-19

申请号：US783988

申请日：1991-10-29

申请人： Walter E. Spath

发明人： Walter E. Spath

IPC分类号： B21D7/08 ,  B21D5/14 ,  B21B1/08

CPC分类号： B21D7/08 ,  B21D11/08 ,  B21D5/08

摘要： Bending preshaped sheet metal pieces that have a web and side flanges, by stretching on one side, and compressing on the other side, by utilizing opposed rollers. They can be, and are, selectively bent into cylinder shapes or cone shapes. The bending steps produce folds in the extended edges of the flanges, of circular cross sectional shape, and in one form, are of large dimensions on one side and of small dimensions on the other side, and adjacent pieces are interconnected by placing the large fold of one piece over and encompassing the small fold of the other piece, to form lids of great area.

摘要翻译： 通过利用相对的辊来弯曲具有腹板和侧凸缘的预成型金属片，通过一侧拉伸并在另一侧上压缩。 它们可以并且被选择性地弯曲成圆筒形状或锥形。 弯曲步骤在凸缘的延伸边缘产生圆形横截面形状的折叠，并且在一种形式中，在一侧具有大尺寸并且在另一侧具有小尺寸，并且相邻的片通过放置大折叠而相互连接 一块，并包围另一块的小折，形成大面积的盖子。

公开(公告)号：US5099668A

公开(公告)日：1992-03-31

申请号：US523435

申请日：1990-05-15

申请人： Walter E. Spath

发明人： Walter E. Spath

IPC分类号： B21D7/06

CPC分类号： B21D7/06

摘要： A universal plying iron is described, consisting of a base plate with a mold support positioned on bracket supports in such a way as to match the contour and mold level of the section to be bent on the base plate, the section to be bent, in the form of a bending template, being bent by means of mold rollers around a section support projecting from the mold support. For the universal application of the plying iron, without the need for involved modification of the bending molds, the bracket supports are positioned in adjustable fashion on the base plate and tension elements are provided on the bracket supports, which tension elements stress the mold support and simultaneously carry the section support, and can be adjusted to the desired height.

摘要翻译： 描述了一种通用牵引铁，其特征在于，具有一个底板，该基板具有定位在支架支架上的模具支架，以便匹配要在基板上弯曲的部分的轮廓和模具水平，待弯曲的部分 弯曲模板的形式通过围绕从模具支撑件突出的截面支撑件的模具辊弯曲。 为了普遍应用牵引铁，在不需要改变弯曲模具的情况下，支架支撑件以可调节的方式定位在基板上，并且张紧元件设置在支架支撑件上，该张力元件对模具支撑件施加压力， 同时携带部分支撑，并可以调整到所需的高度。