公开(公告)号：EP3501682A1

公开(公告)日：2019-06-26

申请号：EP18171769.5

申请日：2018-05-11

申请人： BMW Brilliance Automotive Ltd.

发明人： Zheng, Yufeng ,  Wei, Shouxin ,  Jiao, Fuchuan

IPC分类号： B21D22/06 ,  B21D22/10 ,  B21D24/16 ,  B21D19/10

摘要： The present invention relates to a die, said die comprising an upper die that is movable and a lower die that is held stationary, said upper die being provided with a pressure plate (4) for stamping a workpiece, and said lower die being provided with a forming die (11) for supporting said workpiece, characterized in that a cushioning element (6) is arranged at least in a blank pressing region of said pressure plate (4) for tightly pressing the workpiece located on the forming die (11), and said cushioning element is made of polyurethane.

公开(公告)号：EP3194111B1

公开(公告)日：2018-05-16

申请号：EP15771168.0

申请日：2015-08-26

申请人： SAFRAN AIRCRAFT ENGINES

发明人： GIARDINI, Bruno ,  CHARRIER, Emmanuel, Bernard, Marie ,  HASCOET, Frédéric ,  SPIRE, Didier

IPC分类号： B23P15/00 ,  F01D9/04 ,  F01D11/12 ,  F01D25/24 ,  B21D22/06 ,  B21D53/16 ,  B21D53/92

CPC分类号： B21D53/16 ,  B21D22/06 ,  B21D53/92 ,  B23P15/00 ,  F01D9/04 ,  F01D11/127 ,  F01D25/246 ,  F05D2230/25 ,  F05D2240/11

公开(公告)号：EP3061539A1

公开(公告)日：2016-08-31

申请号：EP16156246.7

申请日：2016-02-18

申请人： Aida Engineering, Ltd.

发明人： Ito, Takao

IPC分类号： B21D11/02 ,  B21D22/06 ,  B21D25/02 ,  B21D37/02 ,  B21D53/92

CPC分类号： B21D11/20 ,  B21D11/02 ,  B21D22/06 ,  B21D25/02 ,  B21D37/02 ,  B21D53/92

摘要： Provided is a bending apparatus 1 for a plate-shaped metal workpiece 3, including a suction device (suction pad) configured to suck a surface of a plate-shaped metal workpiece 3 in a removable manner; a plurality of expansion and contraction devices 20A-20G (servo screw jacks) each including the suction device mounted on a distal end thereof and being capable of expanding and contracting a length ranging from a proximal end thereof to the suction device and an apparatus base (bed) on which the proximal end of each of the expansion and contraction devices is mounted. The bending apparatus 1 is configured to form the plate-shaped metal workpiece 3 under bending deformation by expanding and contracting the expansion and contraction devices under a state in which the suction device sucks the surface of the plate-shaped metal workpiece 3.

摘要翻译： 本发明提供一种用于板状金属工件3的弯曲装置1，其包括以可移除的方式吸附板状金属工件3的表面的抽吸装置（吸盘） 多个膨胀收缩装置20A-20G（伺服螺旋千斤顶），其各自包括安装在其远端上的抽吸装置，并且能够将从其基端延伸到抽吸装置的长度和装置基座（ 床），其上安装有每个膨胀和收缩装置的近端。 弯曲装置1通过在抽吸装置吸附板状金属工件3的表面的状态下膨胀收缩装置而在弯曲变形的状态下形成板状金属制品3。

公开(公告)号：EP2329895B1

公开(公告)日：2016-05-25

申请号：EP10189485.5

申请日：2010-10-29

申请人： TRUMPF Maschinen Austria GmbH & Co. KG.

发明人： Mayrhofer, Johann

IPC分类号： B21D5/02 ,  B21D22/06 ,  B21D37/08

CPC分类号： B21D5/0209 ,  B21D22/06 ,  B21D37/08 ,  B30B15/026 ,  B30B15/065

公开(公告)号：EP1997570A3

公开(公告)日：2015-02-25

申请号：EP08157106.9

申请日：2008-05-28

申请人： Nissan Motor Co., Ltd.

发明人： Matsuda, Shinichi ,  Kanamori, Kenji

IPC分类号： B21J5/08 ,  B21C37/06 ,  B21K23/00 ,  B21D22/00 ,  B21D22/02 ,  B21D22/06 ,  B21K1/12 ,  B21C37/02

CPC分类号： B21D22/00 ,  B21C37/02 ,  B21C37/065 ,  B21D22/02 ,  B21D22/06 ,  B21J5/08 ,  B21K1/12 ,  B21K23/00

摘要： Methods and apparatuses for manufacturing a press-molded product with a preform including a pair of side wall portions (124) and a connecting wall portion (126) are taught. The preform is pressed with a mold (160,170) until at least one wall portion is bent toward a gap within the mold, and a plate thickness is increased at the at least one wall portion and the connecting wall portion by pressing other wall portions.

公开(公告)号：EP2198986A4

公开(公告)日：2011-10-05

申请号：EP08852659

申请日：2008-11-10

申请人： TOYOTA MOTOR CO LTD

发明人： KUBO MASAO

IPC分类号： B21D24/04 ,  B21D22/02 ,  B21D22/06 ,  B21D22/26 ,  B21D53/88

CPC分类号： B21D22/02 ,  B21D22/06 ,  B21D22/26 ,  B21D24/02 ,  B21D24/04 ,  B21D53/88

摘要： This aims to provide a press process for drawing a plate material (50) into a predetermined shape. This press process performs a first unwrinkling treatment and a second unwrinkling treatment sequentially for unwrinkling the material (50). Between these first and second unwrinkling treatments, an introduction for deforming the material (50) is made so that the portion of the material (50) on the side to be subjected to the second unwrinkling treatment may be positioned on the side of a drawing direction with respect to the portion subjected to the first unwrinkling treatment. This first unwrinkling treatment is made on such a portion to be unwrinkled in the material (50) as is located on the side of a larger drawing depth for the predetermined shape. On the other hand, the second unwrinkling treatment is made on such a portion to be unwrinkled as is located on the side of a smaller drawing depth. The press process is advantageous for the cracks or wrinkles of the material, if the molding has a relatively complicated curve shape so that the drawing quantity (or the drawing depth) of the material to be drawn is not homogeneous, so that the press process can improve the pressing stability.

公开(公告)号：EP2165781A8

公开(公告)日：2010-06-02

申请号：EP10150099.9

申请日：2007-04-12

申请人： Honda Motor Co., Ltd.

发明人： Nagai, Yuichi ,  Meguri, Hideo ,  Takeda, Kenzo ,  Egawa, Takayuki

IPC分类号： B21D22/06 ,  B21D22/02 ,  B30B15/14 ,  B21D24/10 ,  B21D24/02 ,  B21D24/04

CPC分类号： B30B15/148 ,  B21D22/22 ,  B21D24/14 ,  B21D37/08

摘要： In a press working apparatus (10), while a servo motor (24) is acting, an upper die (238) is made to come close to a lower die (252) while the plate (212) is being pinched by a first holder (240) and a second holder (254).
The pinch conducted by the first holder (240) and the second holder (254) on the plate (212) is released after press forming of the plate (212) was started in the press forming step and before both dies (238,252) reach a bottom dead center (x2) at which the dies (238,252) are made to come close to each other.

公开(公告)号：EP1243355A3

公开(公告)日：2003-10-08

申请号：EP01114221.3

申请日：2001-06-12

申请人： Umix Co., Ltd.

发明人： Matsuoka, Mitsuo

IPC分类号： B21D37/08 ,  B21D19/08 ,  B21D22/06 ,  B21D5/04 ,  B21D22/08

CPC分类号： B21D19/08 ,  B21D5/04 ,  B21D19/086 ,  B21D22/06 ,  B21D37/08

摘要： The present invention aims with respect to a negative-angle forming die with a lower die half supporting a rotary cam and an upper die half having an intrusion forming portion cooperating with an intrusion forming portion of the rotary cam upon a descend of the upper die half to form a sheet metal product to avoid the problem that the work (W) is damaged by interference of the rotary cam (5) with portions of the work (W) protruding in a direction extending across the rotation axis during retraction of the rotary cam (5) after the intrusion forming. The rotary cam (5) is divided into at least an end rotary cam section (5 1 ) and a main rotary cam section (5 2 ), both of the divided rotary cam sections (5 1 , 5 2 ) being disposed on the same pivoting axis (L), and the end rotary cam section (5 1 ) being provided with means for restricting the end rotary cam section (5 1 ) from pivoting for a predetermined period of the pivoting during retraction of the rotary cam after the forming operation, and for axially moving the end rotary cam section (5 1 ) relative to the main rotary cam section (5 2 ) for a predetermined period of the pivoting during retraction of the rotary cam after the forming operation.

公开(公告)号：EP1276576A1

公开(公告)日：2003-01-22

申请号：EP01938036.9

申请日：2001-03-23

申请人： ThyssenKrupp Stahl AG

发明人： GRUSZKA, Tino ,  RÖSEN, Hartwig

IPC分类号： B21D22/20 ,  B21D22/10 ,  B21D22/06

CPC分类号： B21D22/205

摘要： The invention relates to a method for producing structural elements from a blank (1) consisting of a deformable material, especially steel, according to which the blank (1) is supported during the deformation process by a fluid pad (F) against a shaping tool (5). The invention further relates to a device for carrying out the inventive method. According to the inventive method, the blank (1) is shaped to an intermediate shape by means of the tool (5). The blank (1) shaped to an intermediate shape is then deformed in a locally limited manner by means of a counter mold (6) which is moved against the blank (1) counter to the effective direction (R) of the tool (5). The invention provides a method for producing exactly shaped structural elements at low costs and without any loss in quality.

公开(公告)号：EP0892687B1

公开(公告)日：2002-06-05

申请号：EP97916666.7

申请日：1997-03-21

申请人： Sundhagen, Lena

发明人： SUNDHAGEN, Gunnar

IPC分类号： B21D22/06

CPC分类号： B21D22/04

摘要： A method and tool for forming convexities (3, 4) in a plate body (1), which plate body (1) comprises a main face (2) and a plurality of side edges. The plate body (1) is inserted between two tool halves (11, 12), which are brought together and interact to press a first set of convexities (3) in a first direction relative to the main face (2) of the plate body (1) and a second set of convexities (4) in a second, opposite direction relative to the main face (2) of the plate body (1). The convexities (3, 4) are formed along a straight line across the plate body (1) between two of the side edges thereof. The plate body (1) is secured so that the main face (2) thereof maintains its orientation, and each of the convexities (3) in the first set of convexities is pressed out by a length (1), measured from one side of the convexities (3) at a point (20) on the main face (2) of the plate body (1) along the convexity (3) to the second side of the convexity (3) at a point (21) on the main face (2) of the plate body (1), which is substantially equal to the corresponding length (1) by which each of the convexities (4) in the second set of convexities is pressed out.