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公开(公告)号：US20180214931A1
公开(公告)日：2018-08-02
申请号：US15418978
申请日：2017-01-30
发明人： Stanley J. Wasserman
CPC分类号： B21J9/027 , B21D28/28 , B21D28/325 , B21J9/022 , B21J9/04 , B21J13/025 , B21K1/063
摘要： A progressive former having a bolster and a ram reciprocal towards and away from the bolster, a plurality of workstations evenly spaced across the bolster and ram including aligned tooling piece holders on the bolster and ram, cylindrical die cases in the tooling holders on the bolster and cylindrical tool cases in the tooling holders on the ram, the tooling cases at the workstations being coaxial, a sideways forming mechanism at one of said workstations, the mechanism including a cam and a cam follower radially outward of imaginary outward projections of the associated tooling cases, the cam follower being arranged to be activated by forward motion of the ram towards the bolster, the mechanism including a tool for forming the blank by applying a sideways force on the blank.
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公开(公告)号：US20150118531A1
公开(公告)日：2015-04-30
申请号：US14526838
申请日：2014-10-29
申请人： SMK Corporation
发明人： Haruhiko Kondo , Ryo Sasaki
CPC分类号： B21K23/00 , B21D22/00 , B21J13/02 , H01M2/0486 , H01M2/1241
摘要： A method for cold-forging a thin-walled portion by which a thin-walled portion having a set thickness is formed directly from a metal base plate having a sufficiently large thickness and an explosion-proof valve are provided. Blade side surfaces of upper and lower dies for shearing the metal base plate are set in an overlapping manner with a predetermined clearance δ therebetween. Sheared surfaces are formed with the blade side surfaces of the upper and lower dies in the metal base plate along a processing direction while leaving the set thickness t2 therebetween and the metal base plate is compressed by the overlapped portions until work-hardened to form the thin-walled portion with the horizontal width δ and the set thickness t2 between the sheared surfaces. The formation of the sheared surfaces eliminates a need to press portions of the metal base plate positioned at both the sides of the thin-walled portion into both the sides during the processing of the thin-walled portion and the thin-walled portion can thus be formed at a high compression processing rate with a smaller processing load.
摘要翻译： 提供一种用于冷锻薄壁部分的方法，通过该方法从具有足够厚度的金属基板和防爆阀直接形成具有设定厚度的薄壁部分。 用于剪切金属底板的上模具和下模具的刀片侧表面以它们之间的预定间隙δ重叠地设置。 剪切表面沿着处理方向在金属底板中形成有上模和下模的刀片侧表面，同时留下其间的设定厚度t2，并且金属底板被重叠部分压缩，直到加工硬化以形成薄 在水平宽度δ和剪切表面之间的设定厚度t2之间的壁部分。 剪切表面的形成消除了在薄壁部分的加工期间将位于薄壁部分的两侧的金属基板的部分压入两侧的需要，因此薄壁部分可以是 以较小的处理负荷在高压缩处理速度下形成。
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公开(公告)号：US4391118A
公开(公告)日：1983-07-05
申请号：US261071
申请日：1981-05-06
申请人： Wayne A. Martin
发明人： Wayne A. Martin
摘要： A method and mechanism for forming a hole through a forged workpiece. During the forging operation an indentation is formed in the upper surface of the workpiece. While the workpiece remains in the forging press, a trepanning tool is placed in the indentation and the top die of the press is used to force the tool almost through the workpiece leaving a thin wall at the bottom of the hole. The workpiece either may be removed from the press while the wall is knocked out to complete the hole, or preferably the workpiece remains in the press and the top die is used to knock out the wall. If the workpiece remains in the press, preferably it is supported on a locating ring which aligns the workpiece and trepanning tool with the top die. Also disclosed is an improved trepanning tool which has external and internal sloping faces extending around its circumference at its lower end.
摘要翻译： 一种通过锻造工件形成孔的方法和机构。 在锻造操作期间，在工件的上表面形成有凹痕。 当工件保留在锻压机中时，将扫描工具放置在压痕中，并且压力机的顶模被用于迫使工具几乎穿过工件，留下孔底部的薄壁。 当壁被敲出以完成孔时，工件也可以从压机中移除，或者优选地，工件保留在压力机中，并且顶模用于敲除壁。 如果工件保留在压力机中，最好将其支撑在定位环上，定位环使工件和钻孔工具与顶模对齐。 还公开了一种改进的扫描工具，其具有在其下端围绕其圆周延伸的外部和内部倾斜面。
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公开(公告)号：US4129022A
公开(公告)日：1978-12-12
申请号：US819494
申请日：1977-07-27
申请人： Horst Thonnes , Joachim Wunsche
发明人： Horst Thonnes , Joachim Wunsche
摘要： An initial well is formed into the rear end of a cylindrical billet thereby providing a centering collar. The billet is additionally centered at the receiver bottom and pierced by a frustoconical mandrel under retention of the well.
摘要翻译： 初始孔形成在圆柱形坯料的后端，从而提供定心环。 坯料另外以接收器底部为中心，并在保持井的同时由截头圆锥形心轴刺穿。
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公开(公告)号：US4103530A
公开(公告)日：1978-08-01
申请号：US788253
申请日：1977-04-18
申请人： James W. Schuetz
发明人： James W. Schuetz
摘要： The disclosure relates to apparatus for center punching a hot metal billet preparatory to a piercing operation, in the production of seamless tubing. The apparatus provides a simple, reliable, mechanical arrangement effective to automatically compensate for normal variations in the diameter of successive hot metal billets, such that the center punching operation is carried out with greater accuracy than has heretofore been attained in regular production operations. The apparatus includes means for mechanically clamping a hot metal billet preparatory to center punching, and means for axially advancing a center punching tool into the end of the clamped billet. The center punching tool itself is mounted for limited transverse movement in relation to its advancing means, and is mechanically coupled to the clamping means by a compensating mechanism. Minor transverse adjustment of the position of the center punching tool in relation to the nominal axis of the apparatus, in order to obtain greater accuracy of alignment with the actual center line of a billet, is achieved by moving the center punching tool as a function of movement of the clamping mechanism. The clamping mechanism serves inherently to sense the actual diameter of the billet which is being clamped.
摘要翻译： 本公开涉及在制造无缝管时中心冲压准备穿孔操作的热金属坯料的装置。 该设备提供了一种简单，可靠的机械装置，其有效地自动补偿连续热金属坯料的直径的正常变化，使得中心穿孔操作以比迄今为止在常规生产操作中获得的更高的精度进行。 该装置包括用于机械夹紧准备中心冲孔的热金属坯料的装置，以及用于将中心冲压工具轴向推进到夹紧坯料的端部的装置。 中心冲压工具本身相对于其推进装置被安装成有限的横向移动，并且通过补偿机构机械地联接到夹紧装置。 通过将中心冲压工具作为一个或多个中心冲孔工具的移动来实现中心冲孔工具相对于设备的标称轴的位置的小的横向调整，以便获得更高的与坯料的实际中心线对准的精度 夹紧机构的运动。 夹紧机构固有地用于感测被夹紧的坯料的实际直径。
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公开(公告)号：US3793870A
公开(公告)日：1974-02-26
申请号：US3793870D
申请日：1972-03-29
发明人： ALLEN H
CPC分类号： B21J9/04 , B21C23/205
摘要： There is disclosed a press for use in forming tubing by piercing a billet and then shearing a portion from the end of the pierced hole.
摘要翻译： 公开了一种用于通过刺穿坯料来形成管道并随后从穿孔的端部剪切一部分的压力机。
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7.发明授权Method for the production of hollow bodies closed at one side by punching of four-edged blocks 失效通过冲压四边形块来生产一侧闭合的中空体的方法
公开(公告)号：US2215943A
公开(公告)日：1940-09-24
申请号：US16522437
申请日：1937-09-22
申请人： RUDOLF TRAUT
发明人： RUDOLF TRAUT
IPC分类号： B21J9/04
CPC分类号： B21J9/04
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8.发明授权
公开(公告)号：US1537041A
公开(公告)日：1925-05-05
申请号：US49683321
申请日：1921-08-30
申请人： THEODOR BECKER
发明人： THEODOR BECKER
CPC分类号： B21J9/04 , B21B19/04 , Y10T29/49991
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公开(公告)号：US1374369A
公开(公告)日：1921-04-12
申请号：US28620219
申请日：1919-03-29
申请人： EARL LUTHER D
发明人： EARL LUTHER D
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10.发明授权公开(公告)号：US10696122B2
公开(公告)日：2020-06-30
申请号：US15954793
申请日：2018-04-17
申请人： NHK SPRING CO., LTD.
IPC分类号： B60G21/055 , B21J9/04 , B21J9/12 , B21D28/02 , B21J5/10 , B21D53/88 , B21D45/00 , B21J5/02 , B21D28/24 , B21K21/12 , B60G21/00 , B60G21/02 , B21K21/14
摘要： An annular reference surface is formed around a through-hole of an eye portion. A distal-end-side curved portion is formed at a first corner portion, on an outer side of the annular reference surface. The thickness of the distal-end-side curved portion is reduced in a range of a length from the first flat surface toward the distal end surface. A hole-side curved portion whose thickness is reduced toward an inner surface of the through-hole is formed at a second corner portion, on an inner side of the annular reference surface. The length of the hole-side curved portion is less than the length of the distal-end-side curved portion. The hole-side curved portion is curved with a greater curvature than that of the distal-end-side curved portion.
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