公开(公告)号：EP1677922A1

公开(公告)日：2006-07-12

申请号：EP04765036.1

申请日：2004-09-10

申请人： DaimlerChrysler AG

发明人： AUE, Thomas ,  SCHWARZ, Stefan

IPC分类号： B21D26/02 ,  B23D21/00

CPC分类号： B21D26/023 ,  B21D26/02 ,  B21D26/027 ,  B21D26/035 ,  B21D28/24

摘要： The invention relates to a method for simultaneously producing at least two separate workpieces (6, 7) by means of internal high pressure forming. According to said method, a blank is inserted into a form tool (2), the inner wall (3) of said blank comprising at least one dividing gap (8) which is respectively arranged between two negative moulds (4, 5), extends over the entire circumference of the workpieces (6, 7) and is defined by two interspaced, free cutting edges (9, 10). During the forming, the blank penetrates the region of the at least one dividing gap (8) such that the cutting edges (9, 10) respectively cut out a section (15) between two workpieces (6, 7).

公开(公告)号：EP1673184A1

公开(公告)日：2006-06-28

申请号：EP04765273.0

申请日：2004-09-16

申请人： DaimlerChrysler AG

发明人： DUDZIAK, Kai-Uwe ,  HAAG, Ulrich ,  KUSCHEL, Stephan ,  OTTE, Heinz-Rüdiger ,  SCHWARZ, Stefan

IPC分类号： B21D26/02

CPC分类号： B21D26/045

摘要： The invention relates to a device for forming a peripherally closed hollow profiled element (1) by means of fluidic internal high pressure. Said device contains an axial plug (4) for sealing the hollow profiled element (1) on the end thereof, said plug comprising an axial through channel (5) supplying a pressurised fluid. The axial plug (4) comprises a sealed body having a trough-like recess (20) on the front side (19) thereof, the peripheral wall (21) of said recess being radially expandable in an elastic manner inside the hollow profiled element (1), by means of pressurised fluid, until it hits the inner wall (22) of the hollow profiled element (1) in a sealing manner. In order to obtain a long-lasting sealability of the device, the axial plug (4) comprises a head (8) formed by an annular collar (10) and a tapered extension (11) adjacent to the annular collar on the front side (7) of the head (8), and a radial annular abutment located on the body (9) of the plug and placed on the end edge (12) of the hollow profiled element (13). The sealing body embodied as a sealing ring (17) is fixed to the extension (11), and the end (28) of the annular collar (10) projects past the outer side (27) of the sealing ring (17) at at least one point in the radial direction.

公开(公告)号：EP1531951A1

公开(公告)日：2005-05-25

申请号：EP03793638.2

申请日：2003-07-24

申请人： DaimlerChrysler AG

发明人： DUDZIAK, Kai-Uwe ,  HAAG, Ulrich ,  SCHWARZ, Stefan

IPC分类号： B21D39/00 ,  B21D26/02 ,  B21D28/28

CPC分类号： B21D39/00 ,  B21D39/034

摘要： The invention relates to a method and a device for joining a planar component (2) to a hollow section (1). According to said method, the component (2) and the hollow section (1) are positioned in relation to one another in a hydroforming die and are subsequently joined with the aid of a fluidic internal high pressure in the hollow section (1). The aim of the invention is to join a planar component (2) and a hollow section (1) in a simple and reliable manner. To achieve this, under the prevailing internal high pressure, the adjacent walls (3,5) of the hollow section (1) and component (2) that are to be joined are impinged by a punch (6) that is integrated into the hydroforming die, in such a way that the wall (3) of the hollow section (1) is perforated. The result of said perforation is that the punched waste (7) remains attached at one point on the border (8) of the hole, increasing in width towards its free end (9), and that a section of the wall (5) of the component (2) is bent in the form of a tongue (10), which has the same shape as the punched waste (7), into the hollow section (1), to engage behind the border (8) of the hole in said hollow section (1).

公开(公告)号：EP1527298A2

公开(公告)日：2005-05-04

申请号：EP03784032.9

申请日：2003-07-19

申请人： DaimlerChrysler AG

发明人： SCHWARZ, Stefan

IPC分类号： F16L1/00

CPC分类号： B21D26/033 ,  B21D26/037 ,  B21D39/044

摘要： The invention relates to a method for producing a connection (1) between a peripherally closed hollow profiled piece (2) and a hollow part (3). The action of a fluidic internal high pressure assists in positively connecting the hollow profiled piece (2) and the part (3) to one another while forming an overlapping connecting area (15). The aim of the invention is to create a connection (1) between the hollow profiled piece (2) and the hollow part (3) which cannot be pulled apart and is rotationally fixed. To this end, the invention provides that surfaces (11) which are undercut by means of the internal high pressure on the walls (12, 13) of the hollow profiled piece (2) and of the part (3) are formed whereby resulting in the formation of at least one common indentation, which produces the positive engagement, on the walls (12, 13) of the hollow profiled piece (2) and of the part (3). In addition, the hollow profiled piece (2), in the connecting area (15), is widened by the internal high pressure into a cross-sectional shape that differs from a circular shape.

公开(公告)号：EP1663539A1

公开(公告)日：2006-06-07

申请号：EP04764318.4

申请日：2004-08-20

申请人： DaimlerChrysler AG

发明人： AUGUSTIN, Helmut ,  DUDZIAK, Kai-Uwe ,  SCHWARZ, Stefan

IPC分类号： B21D26/02

CPC分类号： B21D26/045 ,  B21D26/043

摘要： The invention relates to an internal high pressure forming installation (1) comprising a form tool (2) consisting of an upper die (3) and a lower die (4), the cavities (5) thereof forming a form chamber (6) for a peripherally closed hollow profiled element (7) to be inserted therein. Said installation (1) comprises at least one axial punch (8) which is used to seal the hollow profiled element (7) at one end (9) and comprises an axial through channel (10), by which means an internal high pressure can be produced by a pressurised fluid in the hollow profiled element (7) in order to enlarge the same. The inventive installation (1) also comprises a rapid filling device (11) provided with a filling attachment (12) with a filling borehole (13),(29) which has a diameter that is larger than that of the through channel (10) of the axial punch (8), and which is used to fill the hollow profiled element (7) with pressurised fluid when the axial punch (8) is set back from the respective hollow profiled end (9). The filling attachment (12) has a through borehole (14) that is penetrated by the axial punch (8) during the forming of the hollow profiled element (7). The aim of the invention is to be able to easily produce hollow profiled elements (7) formed by internal high pressure, on a large scale, by means of a rapid filling device (11) that is integrated into the installation (1) and is used to fill the hollow profiled element (7). To this end, the filling attachment is connected to a transport device that places the filling attachment (12) in a contact position on the form tool (2), and then in a position at a distance from the form tool after the filling process.

摘要翻译： 本发明涉及一种内部高压成形设备（1），其包括由上模具（3）和下模具（4）组成的成形工具（2），所述成形工具（2）形成成形室（6） 一个周边封闭的空心型材（7）插入其中。 所述设备（1）包括至少一个轴向冲头（8），其用于在一端（9）密封中空成型元件（7）并且包括轴向通道（10），通过该通道可以将内部高压罐 由中空成型元件（7）中的加压流体产生，以便扩大其尺寸。 本发明的设备（1）还包括设有具有填充孔（13）的填充附件（12）的快速填充装置（11），填充孔（13）的直径大于通道（10）的直径， 并且当轴向冲头（8）从相应的中空成型端部（9）向后缩回时，所述轴向冲头（8）用于用加压流体填充中空成型元件（7）。 填充附件（12）具有在形成空心型材元件（7）期间被轴向冲头（8）穿透的通孔（14）。 本发明的目的是能够借助集成在设备（1）中的快速填充装置（11）容易地大规模地生产由内部高压形成的空心成型元件（7），并且 用于填充空心异形元件（7）。 为此，填充附件连接到将填充附件（12）放置在成型工具（2）上的接触位置并且然后在填充过程之后与成型工具相距一定距离的位置的输送装置。

公开(公告)号：EP1633581A1

公开(公告)日：2006-03-15

申请号：EP04739636.1

申请日：2004-06-05

申请人： DaimlerChrysler AG

发明人： HARDTKE, Uwe ,  KRATZ, Rene ,  SCHWARZ, Stefan ,  ZECH, Ulrich

IPC分类号： B60G21/05 ,  B60G9/00

CPC分类号： B60G9/02 ,  B60G2200/342

摘要： The invention relates to a Watt strut having a long body provided with a bearing bush (12, 22) arranged on an axial end thereof, the body of said Watt strut being produced by internal high pressure forming.

摘要翻译： 瓦特支柱技术领域本发明涉及一种瓦特支柱，该瓦特支柱具有设置在其轴向端部上的轴承衬套（12,22）的长体，所述瓦特支柱的主体通过内部高压成形来制造。

公开(公告)号：EP1107837B1

公开(公告)日：2002-08-28

申请号：EP99932866.9

申请日：1999-07-10

申请人： DaimlerChrysler AG

发明人： BONNY, Pierre ,  SCHRÖDER, Matthias ,  SCHWARZ, Stefan

IPC分类号： B21D26/02 ,  B21C37/29

CPC分类号： B21D26/047 ,  B21C37/294 ,  B21D26/037 ,  B21D35/008 ,  Y10S72/71

摘要： The invention relates to a method and device (1) for forming a workpiece (2) by means of internal high pressure in a closed, internal high pressure forming tool (3). The workpiece (2) is expanded as a result of internal high fluidic pressure produced by a pressure generator and rests against the engraving of the forming tool (3). The workpiece (2) and the forming tool form friction partners in the contact areas. In order to improve safety during the internal high pressure forming process of the workpiece (2) and to extend the limits of said process, at least one of the two friction partners is oscillated by means of an oscillator while the forming occurs.

公开(公告)号：EP1519801A1

公开(公告)日：2005-04-06

申请号：EP03732437.3

申请日：2003-05-22

申请人： DaimlerChrysler AG

发明人： SCHWARZ, Stefan

IPC分类号： B21D39/03 ,  B21D26/02

CPC分类号： B21D39/031 ,  B21D26/035 ,  B21D26/051 ,  Y10T29/49936 ,  Y10T29/49938 ,  Y10T29/53996

摘要： The invention relates to a method for fixing components (2) to peripherally closed hollow profiles (3). Walls (4,5) of the component (2) and the hollow profile (3) are connected to each other in a positive fit. In order to fix the component (2) to the hollow profile (3) in a simple manner, independent of position, the walls (4,5) to be joined are placed in an adjacent position and are locally impinged upon by external pressure such that the walls (4,5) are pressed inside (12) the hollow profile (3) and a double-walled indentation (10) is formed, whereupon the walls (4,5) are clamped against each other.

公开(公告)号：EP1107837A1

公开(公告)日：2001-06-20

申请号：EP99932866.9

申请日：1999-07-10

申请人： DaimlerChrysler AG

发明人： BONNY, Pierre ,  SCHRÖDER, Matthias ,  SCHWARZ, Stefan

IPC分类号： B21D26/02 ,  B21C37/29

CPC分类号： B21D26/047 ,  B21C37/294 ,  B21D26/037 ,  B21D35/008 ,  Y10S72/71

摘要： The invention relates to a method and device (1) for forming a workpiece (2) by means of internal high pressure in a closed, internal high pressure forming tool (3). The workpiece (2) is expanded as a result of internal high fluidic pressure produced by a pressure generator and rests against the engraving of the forming tool (3). The workpiece (2) and the forming tool form friction partners in the contact areas. In order to improve safety during the internal high pressure forming process of the workpiece (2) and to extend the limits of said process, at least one of the two friction partners is oscillated by means of an oscillator while the forming occurs.