公开(公告)号：US06260401B1

公开(公告)日：2001-07-17

申请号：US09367406

申请日：1999-10-25

申请人： Minoru Tada

发明人： Minoru Tada

IPC分类号： B21D4102

CPC分类号： B21D39/20 ,  B21C37/16 ,  B21D41/02 ,  B21D41/025

摘要： When a flaring punch 2 is pressed into a pipe P from an end thereof to form a concentric or eccentric flared portion Pa, the taper angle &thgr; of the flaring punch is adjusted to apply axial compressive forces to the flared portion Pa thereby to maintain the wall thickness of the flared portion Pa at 70% or greater of the wall thickness of the blank pipe. If the flared portion is formed by a plurality of flaring punches 2A, 2B, 2C having different maximum diameters at a plurality stages, then regions where the elongation is maximum are not localized, preventing the wall thickness from being locally reduced. If an eccentric highly flared pipe where the center of the flared portion Pa and the center of the pipe P are displaced from each other is formed, then a seam-welded region s of the pipe P is aligned with the direction in which the amount &egr; of eccentricity is maximum, making the flared pipe resistant to being ruptured.

摘要翻译： 当将喇叭形冲头2从其端部压入管P以形成同心或偏心的扩口部分Pa时，调节扩口冲头的锥角θ以向扩张部分Pa施加轴向压缩力，从而维持壁 扩口部Pa的厚度在空管的壁厚的70％以上。 如果在多个阶段由多个具有不同最大直径的扩口冲头2A，2B，2C形成扩口部分，则伸长率最大的区域不会局部化，从而局部地减小壁厚。 如果形成了扩口部Pa的中心与管P的中心彼此位移的偏心的高度扩口的管，则管P的接缝区域s与数量为epsi 的偏心度最大，使得扩口管能够破裂。

公开(公告)号：US06609404B1

公开(公告)日：2003-08-26

申请号：US10180694

申请日：2002-06-26

申请人： Luke George Mark Gray

发明人： Luke George Mark Gray

IPC分类号： B21D4102

CPC分类号： B21D3/14 ,  Y10S72/705

摘要： A forming or re-rounding machine has opposed inner and outer hydraulic ram sets each carried in a housing with rollers. The ram set housings are movably mounted onto an I-beam frame connected by hydraulic cylinders. The frame supports a can or shell for rotation of the surface to position a region for forming or reforming between the hydraulic ram sets. Each ram set has a hydraulic cylinder for advancing a re-forming tool on either the inside or outside of the can or shell to reform the selected region. The I-beam hydraulic cylinders are allowed to compress when the can or shell is positioned for forming or reforming and help prevent flexing of the can or shell outside the selected region.

摘要翻译： 成形或再圆化机具有相对的内部和外部液压压头组，每个组件承载在具有辊的壳体中。 压头机壳体可移动地安装在由液压缸连接的I型梁架上。 框架支撑用于旋转表面的罐或壳以定位用于液压柱塞组之间的成形或重整的区域。 每个压头组具有液压缸，用于在罐或壳的内部或外部推进重新形成工具以重新选择区域。 当罐或壳被定位用于成形或重整时，允许液压缸压缩，并且有助于防止罐或外壳在选定区域外的弯曲。

公开(公告)号：US06519998B2

公开(公告)日：2003-02-18

申请号：US10038695

申请日：2002-01-02

申请人： Fritz Ertl ,  Georg Grundmeier

发明人： Fritz Ertl ,  Georg Grundmeier

IPC分类号： B21D4102

CPC分类号： B30B7/04 ,  B21D39/048 ,  Y10T29/5367

摘要： A radial press comprises two press yokes and eight crimping members. The yokes are arranged on a plane that is perpendicular to the press axis and are located diametrically opposite the press axis and can be moved towards each other in a straight line by means of a drive unit, whereby the direction of movement is perpendicular to the press axis. At least one part of the crimping members that are disposed in the yokes has slide surfaces that respectively cooperate with a control surface of one of the yokes or an adjacent crimping member in such a way that all of the crimping members can be moved in a uniform manner onto the press axis when the press yokes move closer to each other. Two crimping members arranged perpendicular to the direction of movement of the at least one movable press yoke are divided into two segments.

公开(公告)号：US06497132B1

公开(公告)日：2002-12-24

申请号：US09927159

申请日：2001-08-10

申请人： Gary Mackay ,  Mel LeBlanc

发明人： Gary Mackay ,  Mel LeBlanc

IPC分类号： B21D4102

CPC分类号： B21D41/02 ,  B21D39/06

摘要： A pipe flaring die has a central opening with a profile configured to reduce stress concentrations at the base of the flared portion of the pipe. The profile includes an annular relief area intermediate an annular gripping surface and an annular beveled portion which defines the angle of the flared portion. The relief area provides a longer transition distance for the formation of the flared portion which results in a reduced residual stress concentration created at the base of the flared portion during the forming process.

摘要翻译： 管道开口模具具有中心开口，其具有被配置为减小管道的扩口部分的基部处的应力集中的轮廓。 轮廓包括环形抓握表面中间的环形释放区域和限定扩口部分的角度的环形斜面部分。 释放区域为形成扩口部分提供了较长的过渡距离，这导致在成形过程中在扩口部分的底部产生的残余应力集中度降低。

公开(公告)号：US06651477B2

公开(公告)日：2003-11-25

申请号：US09368775

申请日：1999-08-05

申请人： Peter Humphries ,  Alexander Mark Duff ,  Simon Jonathan Giles Griffiths

发明人： Peter Humphries ,  Alexander Mark Duff ,  Simon Jonathan Giles Griffiths

IPC分类号： B21D4102

CPC分类号： B21D53/88 ,  B21D41/02 ,  B62D25/145

摘要： A process of producing from an elongate tube a tubular structural component having a first longitudinal section integrally connected to a second longitudinal section, the second section being located at the end of the tube and being of a desired cross-sectional shape and size, the cross-sectional size of the second section being greater than that of the first section, the process including selecting a mandrel having a cross-sectional shape and size corresponding to the second section, relatively axially feeding said end of the tube over the mandrel in order to form said second section, the choice of the size of mandrel and the rate of feed and the axial pressure applied to said tube being controlled such that the wall thickness of the second section is on average at least 70 percent of the average wall thickness of the first wall section.

摘要翻译： 一种从细长管制造的管状结构部件，其具有与第二纵向部分整体连接的第一纵向部分，第二部分位于管的端部并且具有期望的横截面形状和尺寸，十字形 所述第二部分的尺寸大于所述第一部分的尺寸，所述方法包括选择具有对应于所述第二部分的横截面形状和尺寸的心轴，将所述管的所述端部相对轴向地馈送在所述心轴上，以便于 形成所述第二部分，选择心轴的尺寸以及施加到所述管的进料速率和轴向压力被控制，使得第二部分的壁厚度平均为平均壁厚的至少70％ 第一个墙段。

公开(公告)号：US06453714B2

公开(公告)日：2002-09-24

申请号：US09819514

申请日：2001-03-27

申请人： Tsuguo Kido ,  Tetsuji Omori ,  Seiji Yamamoto ,  Yuji Nakada

发明人： Tsuguo Kido ,  Tetsuji Omori ,  Seiji Yamamoto ,  Yuji Nakada

IPC分类号： B21D4102

CPC分类号： B21D41/02

摘要： In forming a fuel inlet pipe FP, (1) a portion of a base pipe is expanded by use of an expander punch to form a processed pipe comprising a neck portion, of which the diameter is the same as that of the base pipe, a tapering portion, and an expanded portion, all of these portions being connected in coaxial relation to one another (coaxially expanding process); and (2) a central axis of the neck portion and a central axis of the expanded portion are decentered relative to each other, and the expanded portion of the processed pipe is further expanded by use of an expander punch having a diameter larger than that of the expander punch used in the coaxially expanding process, thereby forming the fuel inlet pipe FP (eccentrically expanding process). The coaxially expanding process is performed one time or a plurality of times, while the eccentrically expanding process is performed only one time.

摘要翻译： 在形成燃料入口管FP的过程中，（1）使用膨胀机冲头使基管的一部分膨胀，以形成直径与基管直径相同的颈部的加工管， 锥形部分和扩张部分，所有这些部分彼此同轴连接（同轴扩张过程）; 和（2）颈部的中心轴线和膨胀部分的中心轴线相对于彼此偏心，并且通过使用直径大于 在同轴膨胀过程中使用的膨胀机冲头，从而形成燃料入口管FP（偏心扩大过程）。 进行同时扩展处理一次或多次，而偏心扩展处理仅执行一次。

公开(公告)号：US06367303B1

公开(公告)日：2002-04-09

申请号：US09641712

申请日：2000-08-21

申请人： Toshihiro Hizono

发明人： Toshihiro Hizono

IPC分类号： B21D4102

CPC分类号： B21D53/30 ,  B21D3/14 ,  Y10T29/4975 ,  Y10T29/53996

摘要： To readily perform a repairing work for a deformed portion of a rim without any adverse effects given by a rim shape of a wheel or a kind of the wheel, and to enhance the precision of the repairing work and the simplification of the apparatus by devising a receiver for a reactive force of a pressing jack, a wheel repairing apparatus includes a base (2) on which the wheel H is to be mounted with its axis vertical, a support frame (3) provided on the base, supporting means (A) provided between the support frame and the base for rotatably supporting the wheel about the vertical axis and pressurizing means (B) for pressurizing the deformed portion of the rim (R). The pressurizing means includes a pressurizing lever (7) having a free end (6) swingably rotatable about a proximal end (5) for pressurizing the free end to be brought into contact with the deformed portion of the rim from inside, and a jack (8) for applying to the pressurizing lever a force in a direction in which the deformed portion is returned to the original form. A reactive force of the jack is received by the wheel supporting means (A).

摘要翻译： 为了容易地对轮辋的变形部分进行修理工作，而没有由轮的轮辋形状或轮子的种类给出的任何不利影响，并且通过设计轮胎来提高修理工作的精度和简化装置 接收器，用于按压千斤顶的反作用力，车轮修理装置包括：基座（2），其上安装有车轮H的轴线垂直的基座（2），设置在基座上的支撑框架（3），支撑装置（A） 设置在所述支撑框架和所述基座之间，用于围绕所述竖直轴线可旋转地支撑所述车轮;以及加压装置（B），用于加压所述轮辋（R）的变形部分。 加压装置包括一个加压杆（7），该加压杆具有一个自由端（6），该自由端可围绕近端（5）摆动地转动，用于加压自由端，以使其与里边的变形部分接触;以及一个千斤顶 8），用于向变压部分施加一个在变形部分返回原来形状的方向上的力。 千斤顶的反作用力被轮支撑装置（A）接收。

公开(公告)号：US06832756B2

公开(公告)日：2004-12-21

申请号：US10345495

申请日：2003-01-16

申请人： Michael J. Palmer ,  S. Scott MacIntyre

发明人： Michael J. Palmer ,  S. Scott MacIntyre

IPC分类号： B21D4102

CPC分类号： B23B31/4013

摘要： An expandable mandrel for holding a workpiece, including a mandrel body having an interior surface and an exterior surface. The interior surface defines at least first and second interior regions separated by a transition surface, the first region having a cross sectional area greater than a cross-sectional area of the second region. A plurality of slots extend between the interior surface and the exterior surface. A slave actuator having a bearing surface is at least partially disposed in the first region, and a master actuator is provided for urging the bearing surface against the transition surface to expand the mandrel against the workpiece.

摘要翻译： 一种用于保持工件的可膨胀心轴，包括具有内表面和外表面的心轴本体。 内表面限定由过渡表面分开的至少第一和第二内部区域，第一区域具有大于第二区域的横截面面积的横截面面积。 多个狭槽在内表面和外表面之间延伸。 具有轴承表面的从动致动器至少部分地布置在第一区域中，并且提供主致动器用于将支承表面压靠过渡表面以使心轴相对于工件膨胀。

公开(公告)号：US06672128B2

公开(公告)日：2004-01-06

申请号：US10234738

申请日：2002-09-04

申请人： Ewald Wagner ,  Manfred Waltersdorf ,  Michael Judis

发明人： Ewald Wagner ,  Manfred Waltersdorf ,  Michael Judis

IPC分类号： B21D4102

CPC分类号： B21D41/026

摘要： A hand tool for expanding hollow bodies contains a casing (2) having a laterally extending first hand lever (3). A second hand lever, (7) which consists of steel and is joined to the casing so as to pivot on a shaft (5), bears a pinion sector (6) surrounding the shaft (5). The two hand levers (3, 7) form a pliers In the casing (2) a bore is disposed for guiding a rack consisting of steel, one end of which cooperates within the bore with the pinion sector (6) such that an expansion wedge can be displaced outwardly by a closing movement of the two hand levers (3, 7). The casing has means by which an expansion head with radially moving expander jaws can be placed coaxially onto the outwardly tapered end of the spreading wedge. To reduce both the weight and the force required for operation, the casing (2) and its hand lever (3) consist of a light material from the plastic and light metal group. The casing (2) thus forms together with the rack a low-friction combination of light material and steel. Preferably the weight of the second hand lever (7) consisting with the pinion sector (6) of steel is further reduced by at least one opening (7d, 7e, 7g) between the flanges (7a, 7b).

摘要翻译： 用于膨胀中空体的手工具包括具有横向延伸的第一手柄（3）的壳体（2）。 由钢构成并与壳体接合以在轴（5）上枢转的第二手柄（7）承载围绕轴（5）的小齿轮扇区（6）。 两个手柄（3,7）形成钳子在壳体（2）中，设置有用于引导由钢组成的齿条的孔，其一端在孔内与小齿轮扇区（6）配合，使得膨胀楔 可以通过两个手柄（3,7）的关闭运动向外移位。 外壳具有这样一种装置，通过该装置可将具有径向移动的扩张器夹爪的膨胀头同轴地放置在扩展楔的向外锥形的端部上。 为了减少操作所需的重量和力量，壳体（2）和其手柄（3）由来自塑料和轻金属组的轻质材料组成。 因此，壳体（2）与机架一起形成轻质材料和钢的低摩擦组合。 优选地，由钢的小齿轮扇区（6）组成的二手杆（7）的重量进一步减小了凸缘（7a，7b）之间的至少一个开口（7d，7e，7g）。

公开(公告)号：US06581433B2

公开(公告)日：2003-06-24

申请号：US09962919

申请日：2001-09-24

申请人： Masato Otsuka ,  Hanji Ishikawa

发明人： Masato Otsuka ,  Hanji Ishikawa

IPC分类号： B21D4102

CPC分类号： B21D41/02 ,  B21C37/16

摘要： A method of manufacturing a metal pipe with an eccentrically expanded open end comprises the steps of plastically deforming to a coaxially expanded state M1 so that an axial wall length L2 at a side to be eccentrically expanded is longer than an axial wall length L1 at the opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch into the coaxially expanded open end M1. The eccentrically expanding punch has a boundary between a conical tip and a cylindrical body inclined with a predetermined angle &thgr; so as to bring the cylindrical body into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity. When the coaxially expanded open end M1 is plastically deformed to an eccentrically expanded state M2, metal flow is suppressed at a side to, be eccentrically expanded, but metal flow from the opposite side to be expanded without eccentricity to the former side is promoted. Consequently, the open end is plastically deformed to the eccentrically expanded state M2 without any thickness deviation along a circumferential direction.

摘要翻译： 制造具有偏心扩大的开口端的金属管的方法包括塑性变形到同轴扩张状态M1的步骤，使得在偏心膨胀的一侧上的轴向壁长度L2比相对的轴向壁长度L1长 侧面无偏心扩张。 然后通过将偏心扩张的冲头强制地插入到同轴扩展的开口端M1中，将同轴扩大的开口端M1塑性地变形到偏心扩张状态M2。 偏心膨胀的冲头在锥形尖端和以预定角度θ倾斜的圆柱体之间具有边界，以便使圆筒体与同轴展开的开口端M1的内壁在一侧相比偏心膨胀 相反的一面要扩大而不偏心。 当同轴扩大的开口端M1被塑性变形到偏心扩张状态M2时，金属流动被抑制在一侧以被偏心地扩大，但是金属从相对侧流动而不偏心到前者。 因此，开口端塑性地变形到偏心扩张状态M2，而沿圆周方向没有任何厚度偏差。