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    Trimming pipe bends
    11.
    发明授权
    Trimming pipe bends 失效
    修边弯管

    公开(公告)号：US4170157A

    公开(公告)日：1979-10-09

    申请号：US865660

    申请日：1977-12-29

    Applicant: Rolf Koser

    Inventor： Rolf Koser

    IPC: B21C37/28 ,  B23D45/10 ,  B23D45/12 ,  B23D19/08

    CPC classification number: B23D45/12 ,  B21C37/28 ,  B23D45/102 ,  Y10S83/914 ,  Y10T83/7701

    Abstract: A machine for the trimming of a pipe bend held in a die in a machine frame has two hydraulic rams mounted at 45.degree., the piston rod of each ram carrying one of a pair of rotary cutting devices for trimming respective ends of the pipe bend. Under the two hydraulic rams there are arranged, each on a respective inclined guide way and likewise at an angle of 45.degree. in the machine frame, movable swarf or burr removing chamfering devices moving to bring their rotary cutter head coaxially into engagement with a respective trimmed end of the pipe bend.

    Abstract translation: 用于修整保持在机架中的模具中的管弯头的机器具有安装在45°处的两个液压柱塞，每个压头的活塞杆承载一对旋转切割装置中的一个，用于修剪管弯管的相应端部。 在两个液压柱塞下，在机架中分别相应倾斜的引导方式和45°的角度布置，可移动的切屑或去毛刺的切削装置移动以使其旋转刀头同轴地与相应的修剪 管弯头的末端。

    Return elbow and crossover bender
    13.
    发明授权
    Return elbow and crossover bender 失效
    返回弯头和交叉弯曲机

    公开(公告)号：US4085608A

    公开(公告)日：1978-04-25

    申请号：US792518

    申请日：1977-05-02

    Applicant: Lawrence A. Franks ,  Eugene E. Eldridge

    Inventor： Lawrence A. Franks ,  Eugene E. Eldridge

    IPC: B21C37/28 ,  B21D9/05 ,  B21D9/07 ,  B21D11/10 ,  B23D45/02 ,  B21D7/02

    CPC classification number: B21D9/055 ,  B21C37/283 ,  B21D11/10 ,  B21D9/073 ,  B23D45/021

    Abstract: An elbow forming apparatus having a forming arbor with an exterior groove for accommodating a tube. A movable mandrel assembly, including a wiping member, is disposed opposite the arbor and has a further groove which cooperates with the arbor to confine the tube therebetween. An elongated rodlike mandrel is slidably inserted into the free end of the tube, after the latter has been fed into a position adjacent the arbor. The mandrel assembly is mounted on a first support structure which is rotatably supported on a second support structure, the latter being slidably supported on a third support structure which is rotatably supported on a frame for rotative movement. A cam-and-follower connects the mandrel assembly to the arbor so that, upon swinging movement of the third support structure, the mandrel assembly and the associated wiper is swingably moved around the arbor which causes a simultaneous and substantially linear retraction of the mandrel from the tube accompanied by a simultaneous bending of the tube about the arbor. The groove formed in the arbor preferably includes an intermediate straight portion joined between two bend portions, and the cam-and-follower maintains the mandrel assembly and the wiper closely adjacent the arbor during the swinging of the third support structure.

    Abstract translation: 一种弯头形成装置，其具有形成心轴，其具有用于容纳管的外部凹槽。 包括擦拭构件的可移动心轴组件设置成与心轴相对，并且具有与心轴配合的另一凹槽，以将管限制在其间。 细长的棒状心轴在其被馈送到邻近心轴的位置之后可滑动地插入管的自由端。 心轴组件安装在第一支撑结构上，第一支撑结构被可旋转地支撑在第二支撑结构上，第二支撑结构被可滑动地支撑在第三支撑结构上，第三支撑结构被可旋转地支撑在框架上用于旋转运动。 凸轮和跟随器将心轴组件连接到心轴，使得当第三支撑结构的摆动运动时，心轴组件和相关联的擦拭器可绕心轴摆动地移动，这导致心轴的同时且基本线性缩回 管伴随着围绕心轴的管的同时弯曲。 形成在心轴中的凹槽优选地包括连接在两个弯曲部分之间的中间直线部分，并且在第三支撑结构的摆动期间，凸轮和跟随器将心轴组件和擦拭器保持紧邻于心轴。

    Machine for connecting workpieces, especially pipe bend segments or the like
    14.
    发明授权
    Machine for connecting workpieces, especially pipe bend segments or the like 失效
    用于连接工件，特别是弯管段等的机器

    公开(公告)号：US4006520A

    公开(公告)日：1977-02-08

    申请号：US648562

    申请日：1976-01-12

    Applicant: Erich Wachter

    Inventor： Erich Wachter

    IPC: B21C37/28 ,  B21D39/02 ,  B21D39/04

    CPC classification number: B21C37/28 ,  B21D39/02 ,  B21D39/04 ,  Y10T29/53717

    Abstract: A machine for connecting workpieces, especially pipe bend segments or the like comprising a rotatable table for supporting the pipe bend segments which are to be interconnected and a working head having a pair of cooperating rolls for interconnecting contiguous ends of adjacent pipe bend segments, typically at abutting flanges, with one another. Adjustment means permit selectively changing the relative radial spacing between the working head and the rotatable table. Means coact with the rotatable table for elastically supporting the rotatable table in elevational position.

    Abstract translation: 一种用于连接工件，特别是弯管段等的机器，其包括用于支撑待互连的管弯曲段的可旋转工作台和具有一对协作辊的工作头，用于将相邻管弯曲段的相邻端相互连接，通常在 相邻的凸缘。 调节装置允许选择性地改变工作头和可旋转工作台之间的相对径向间距。 装置与可旋转工作台共同作用，用于将可旋转工作台弹性地支撑在仰角位置。

    Dial feed die arrangement for forming compression fittings
    16.
    发明授权
    Dial feed die arrangement for forming compression fittings 失效
    用于形成压缩配件的DIAL送料装置

    公开(公告)号：US3688717A

    公开(公告)日：1972-09-05

    申请号：US3688717D

    申请日：1970-09-14

    Applicant: NATHAN H RUDOLPH ,  RONALD G BOYD

    Inventor： RUDOLPH NATHAN H ,  BOYD RONALD G

    IPC: B21C37/28 ,  B21D43/14 ,  B21D19/08

    CPC classification number: B21D43/14 ,  B21C37/28

    Abstract: The disclosure pertains to a compression fitting for connecting conduit to outlet boxes and the like in which the body member is made by a series of press forming operations on a tubular blank to define a central upset portion having a hex configuration, and roll formed threaded end portions of different external diameters in which the diameter of the tubular blank is equivalent to the pitch diameter of the large end of the completed body member, and an indentation is rolled into the blank adjacent its smaller end to define the maximum throat size of the fitting and a stop for the conduit when received in the body member larger end. In making the body member, the blank is made from mild steel tubing fed through a cut off machine in which the indentation is rolled into the tubing and the blank is formed by severing same from the tubing to include the indentation located adjacent one end of same, the ends of the blank are deburred, the said one end of the blank is necked down to approximately the indentation, the blank is upset intermediate its ends to define the hex configuration, and then the threads are rolled into the blank ends, after which the body member is suitably coated. The reduced end of the body member receives a conventional box engaging lock nut while the larger body member end is equipped with a clamp nut and cooperating gland for fixing the conduit to the fitting. Also disclosed is a special die arrangement for necking down and upsetting the fitting body member.

    Abstract translation: 本发明涉及一种用于将管道连接到出口箱等的压缩配件，其中主体部件通过在管状坯件上的一系列压制成型操作制成，以限定具有六边形构造的中心镦锻部分，以及辊形螺纹端 管状坯件的直径等于完成的本体构件的大端的节圆直径的不同外径的部分，并且将压痕轧制到与其较小端相邻的坯料中，以限定配件的最大喉部尺寸 并且当容纳在主体部件较大端部时用于导管的止动件。 在制造主体构件时，坯料由通过切割机进给的低碳钢管制成，其中压痕被卷入管道中，并且坯料通过从管道切断而形成，以包括邻近其一端的压痕 坯料的端部被去毛刺，坯料的所述一端被颈缩到大约的凹口，坯料在其端部之间中断，以限定六边形构造，然后将螺纹卷入坯料端，此后 主体构件被适当地涂覆。 主体构件的缩小的端部接收常规的盒接合锁定螺母，而较大的主体构件端部装备有夹紧螺母和用于将导管固定到配件的配合密封件。 还公开了一种用于颈缩和镦锻装配体构件的特殊的模具装置。

    Short-radius squeeze bending apparatus
    18.
    发明授权
    Short-radius squeeze bending apparatus 失效
    短路弯曲弯曲装置

    公开(公告)号：US3606788A

    公开(公告)日：1971-09-21

    申请号：US3606788D

    申请日：1969-10-14

    Applicant: FOSTER WHEELER CORP

    Inventor： WHITMAN RAYMOND C

    IPC: B21C37/28 ,  B21D7/04

    CPC classification number: B21C37/283

    Abstract: A SQUEEZE BENDING APPARATUS IN WHICH A TUBE BLANK, PREVIOUSLY FABRICATED WITH A RELATIVELY WIDE BEND, IS FORMED WITH A SHORT RADIUS TUBE BEND. AN INNER DIE IS OPERATIVELY CONNECTED BETWEEN A PAIR OF OUTER DIES FOR CONJOINTLY BRINGING THE DIES TOGETHER AT A UNIFORM RATE OF MOVEMENT SUCH THAT SHORT RADIUS BENDS CAN BE UNIFORMLY FABRICATED.

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