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1.发明授权公开(公告)号：US11772147B2
公开(公告)日：2023-10-03
申请号：US17259497
申请日：2018-07-31
发明人： Ryo Tabata , Masahiro Saito
IPC分类号： B21D19/08
CPC分类号： B21D19/082
摘要： A strength flanging method which improves the method of stretch flanging by press forming so as to disperse strain generated during a forming operation in a blank and in turn prevent the formation of cracks at the center of an arc part, which strength flanging method performs stretch flanging using a stretch flanging tool provided with a top surface part having a protruding part in a top view, straight wall parts, a main slanted wall part between the top surface part and the straight wall parts positioned forming an angle with the top surface part of more than 0° and less than 90° and with the straight wall parts of 10° or more and less than 90° and having two intersecting ridgelines at the straight wall part sides, a first sub slanted wall part sharing one ridgeline among the two ridgelines with the main slanted wall part and positioned forming angles with the top surface part and a straight wall part of more than 0° and less than 90°, and a second sub slanted wall part sharing the other ridgeline among the two ridgelines with the main slanted wall part and positioned forming angles with the top surface part and a straight wall part of more than 0° and less than 90°.
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公开(公告)号：US11684961B2
公开(公告)日：2023-06-27
申请号：US16837488
申请日：2020-04-01
申请人： SUBARU CORPORATION
发明人： Masahiro Yokoi , Yoshihiro Kanaya
CPC分类号： B21D19/08 , B21D39/023 , B21D19/082 , B21D39/02 , B21D39/021 , B21D39/026
摘要： A roller hemming device includes a backing metal, a guide roller, a bending roller, a pressing unit, and a swinging unit. The backing metal includes an abutment surface and a guide surface. The abutment surface is brought into abutment against a first panel member. The guide roller is moved in an extending direction of the guide surface with abutting against the guide surface. With being moved synchronously with the guide roller, the bending roller presses a bent peripheral edge portion of the first panel member via the backing metal such that the bent peripheral edge portion of the first panel member is pinched between the bending roller and the guide roller, and folds the bent peripheral edge portion of the first panel member back to a periphery edge portion of a second panel member. The pressing unit presses the bending roller toward the backing metal.
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公开(公告)号：US11992870B2
公开(公告)日：2024-05-28
申请号：US17737414
申请日：2022-05-05
申请人： Ford Motor Company
CPC分类号： B21D39/021 , B21D5/047 , B21D19/043 , B62D25/16 , B21D19/082 , B21D37/04
摘要： A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.
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公开(公告)号：US09126364B2
公开(公告)日：2015-09-08
申请号：US14200927
申请日：2014-03-07
发明人： Jun Cheol Ki
CPC分类号： B29C67/0011 , B21D5/04 , B21D19/08 , B21D19/082
摘要： A press die is provided which includes a lower die having a lower core and an upper die having an upper core, the upper die includes moving blocks installed movably in a first horizontal direction and a bending shaft installed to the moving blocks, and the bending shaft presses a plate against a side surface forming portion of the lower core as the moving blocks move in the first horizontal direction, thereby enabling the plate to be deformed in the first direction.
摘要翻译： 提供一种压模，其包括具有下芯的下模和具有上芯的上模，所述上模具包括可移动地设置在第一水平方向上的移动块和安装到所述移动块的弯曲轴，以及所述弯曲轴 当移动块沿第一水平方向移动时，将板压靠在下芯的侧面形成部分上，从而使板能够在第一方向上变形。
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公开(公告)号：US20020124619A1
公开(公告)日：2002-09-12
申请号：US09875100
申请日：2001-06-07
发明人： Mitsuo Matsuoka
IPC分类号： B21D011/00
CPC分类号： B21D5/04 , B21D19/082 , B21D19/086 , B21D22/08
摘要： A slight pivoting movement makes a rotary cam out of a predetermined forming position, making an unwanted step in a curved surface of the work or making unable to form into an accurate curve. Sometimes, providing a product of accuracy in the order of {fraction (1/100)} mm was difficult, or it was impossible to provide a formed sheet metal product of a high quality. The present invention aims to maintain the rotary cam at a predetermined forming position thereby providing a formed sheet metal product of a high quality. The present invention provides a negative-angle forming die comprising a lower die half having a supporting portion for placing a sheet metal work, and an upper die half to be lowered straightly downward onto the lower die half for forming the work, an intrusion forming portion formed in the lower die half at an edge portion near the supporting portion inward of a downward stroke line of the upper die half, a rotary cam rotatably provided in the lower die half, a slide cam including an intrusion forming portion and slidably opposed to the rotary cam, and an automatic retractor provided in the lower die half for pivoting the rotary cam back to a position thereby allowing the work to be taken out of the lower die half after a forming operation, the work placed on the supporting portion of the lower die half being formed by the intrusion forming portion of the rotary cam and the intrusion forming portion of the slide cam, the slide cam forming the work by sliding, the automatic retractor pivoting back the rotary cam after the forming operation for allowing the work to be taken out of the lower die half, wherein the rotary cam has two ends each including a supporting shaft projecting therefrom, the supporting shafts being supported by the lower die half for rotatably supporting the rotary cam, positioning means for fixing an axial position of the rotary cam being provided in the lower die half and the rotary cam.
摘要翻译： 轻微的枢转运动使得旋转凸轮脱离预定的成形位置，使得工件的弯曲表面中的不期望的步骤或使得不能形成精确的曲线。 有时，提供精度为{分数（1/100）} mm的产品是困难的，或者不可能提供高质量的成形金属板材。 本发明旨在将旋转凸轮保持在预定的成形位置，从而提供高质量的成形金属制品。 本发明提供了一种负角成形模具，其包括具有用于放置金属板加工用的支撑部的下半模，以及将上模半正下方直下降到下半模上形成工件的入模成形部 在上半模的下行行程的内侧的支撑部附近的边缘部分处形成在下模具半部中，可旋转地设置在下模半部中的旋转凸轮，包括入侵形成部分的滑动凸轮， 旋转凸轮和设置在下模具半部中的自动牵缩器，用于将旋转凸轮枢转回到位置，从而允许工件在成形操作之后从下模具中取出，工件放置在下模具的支撑部分上 模具一半由旋转凸轮的入侵形成部分和滑动凸轮的入侵形成部分形成，滑动凸轮通过滑动形成工件，自动牵缩器 在成形操作之后使旋转凸轮枢转以允许工件从下半模中取出，其中旋转凸轮具有两个端部，每个端部包括从其突出的支撑轴，支撑轴由下半模支撑以可旋转 支撑旋转凸轮，用于固定设置在下半模和旋转凸轮中的旋转凸轮的轴向位置的定位装置。
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公开(公告)号：US09120138B2
公开(公告)日：2015-09-01
申请号：US13648480
申请日：2012-10-10
发明人： Mark W. Bordner
CPC分类号： B21J5/025 , B21C23/001 , B21C23/183 , B21D19/082 , B21D19/088 , B21D51/14 , B21J5/02 , B21J9/022 , B21J9/027 , B30B3/02
摘要： A method and apparatus for forming metal parts in a progressive forming machine wherein one of the opposed tools on a ram and die breast is spring biased to operatively close the tools before the ram reaches front dead center thereby allowing material of the blank to extrude sideways through an aperture formed by both of the opposed tools in the final forward movement of the ram.
摘要翻译： 一种用于在渐进式成形机中形成金属部件的方法和装置，其中在冲头和模具乳房上的相对的工具中的一个被弹簧偏置以在冲头到达前死点之前操作地关闭工具，从而允许坯料的材料横向穿过 在冲头的最后向前运动中由两个相对的工具形成的孔。
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公开(公告)号：US08033155B2
公开(公告)日：2011-10-11
申请号：US12182292
申请日：2008-07-30
申请人： Koichi Sasaki , Nobuyuki Shiozaki
发明人： Koichi Sasaki , Nobuyuki Shiozaki
CPC分类号： B21D19/10 , B21D19/082
摘要： The present invention relates to a press die set for forming a flange that bends an edge of a part, such as a door panel and a hood panel, at a right angle in a press-forming direction and bends an edge adjacent to the edge at a negative angle, and a flange forming method. The press die set for forming a flange according to the present invention can accomplish the flange formation described above in one step, has a simple structure, and is easy to maintain.
摘要翻译： 本发明涉及一种用于形成凸缘的压模组件，该凸缘在压制成形方向上成直角地弯曲诸如门板和发动机盖板的部件的边缘，并且弯曲与边缘相邻的边缘 负角度和法兰形成方法。 根据本发明的用于形成凸缘的压模组件可以一步完成上述凸缘形成，结构简单，易于维护。
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公开(公告)号：US20080237961A1
公开(公告)日：2008-10-02
申请号：US12058039
申请日：2008-03-28
申请人： Hinatsu Kukita , Yusuke Kazawa
发明人： Hinatsu Kukita , Yusuke Kazawa
IPC分类号： B23Q3/00
CPC分类号： B21D19/08 , B21D19/082 , B21D22/06
摘要： A pad for holding a blank, which is used to work an edge portion of a plate material with a die assembly having a lower die and an upper die. The pad comprising a primary pad for holding the plate material on the lower die, a subsidiary pad that outwardly protrudes from an edge portion of the primary pad and pushes the vicinity of the edge portion of the plate material, and a pushing device for pushing the subsidiary pad toward the lower die.
摘要翻译： 用于保持坯料的垫，其用于通过具有下模和上模的模具组件来加工板材的边缘部分。 所述垫包括用于将所述板材保持在所述下模上的主垫，从所述主垫的边缘部向外突出并且推动所述板材的边缘部的附近的辅助垫，以及用于将所述 辅助垫朝向下模。
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公开(公告)号：US11951521B2
公开(公告)日：2024-04-09
申请号：US17272042
申请日：2019-09-13
发明人： Toru Kojima
IPC分类号： B21D19/08 , F01N13/18 , F16L23/032
CPC分类号： B21D19/082 , F01N13/1855 , F01N13/1872 , F16L23/032 , F01N2450/24
摘要： After an annular plate is blanked from a metal flat plate in a blanking step, an inner peripheral portion of the annular plate is deformed upward in a burring step. As a result, a hat-shaped intermediate product having an upstanding tubular portion and an annular plate portion is formed. After that, an outer peripheral portion of the annular plate portion is folded step by step toward an inner peripheral side of the annular plate portion. As a result, a folded portion composed of a first folded portion and a second folded portion is formed, whereby a connection portion having a second flange portion is formed.
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公开(公告)号：US20140255532A1
公开(公告)日：2014-09-11
申请号：US14200927
申请日：2014-03-07
发明人： Jun Cheol KI
IPC分类号： B29C67/00
CPC分类号： B29C67/0011 , B21D5/04 , B21D19/08 , B21D19/082
摘要： A press die is provided which includes a lower die having a lower core and an upper die having an upper core, the upper die includes moving blocks installed movably in a first horizontal direction and a bending shaft installed to the moving blocks, and the bending shaft presses a plate against a side surface forming portion of the lower core as the moving blocks move in the first horizontal direction, thereby enabling the plate to be deformed in the first direction.
摘要翻译： 提供一种压模，其包括具有下芯的下模和具有上芯的上模，所述上模具包括可移动地设置在第一水平方向上的移动块和安装到所述移动块的弯曲轴，以及所述弯曲轴 当移动块沿第一水平方向移动时，将板压靠在下芯的侧面形成部分上，从而使板能够在第一方向上变形。
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