公开(公告)号：US11833572B2

公开(公告)日：2023-12-05

申请号：US17193033

申请日：2021-03-05

Applicant: Greenlee Tools, Inc.

Inventor： Henry Alexander Fiorentini ,  Anthony J. Bussan ,  Andrew Francis Troy ,  SatishKumar SivaSankaran ,  Thomas M. Sticha ,  John Russell Fenske ,  Joshua Curtis Kerns

IPC: B21D7/025 ,  B21D7/14

CPC classification number: B21D7/025 ,  B21D7/14

Abstract: A bender configured to bend a workpiece in a bending operation and its method of use are provided. The bender includes a frame, a bending shoe assembly rotatably mounted on the frame, a control system and a driver in communication therewith, and a springback assembly in communication with the control system and configured to provide information to the control system regarding information on a bend affected to the workpiece. The bending shoe assembly includes a bending shoe into which the workpiece can be seated, and a gripping member mounted on the bending shoe and configured to grip the workpiece during the bending operation. The driver provides rotational force to the bending shoe assembly to rotate the bending shoe assembly relative to the frame.

公开(公告)号：US09707610B2

公开(公告)日：2017-07-18

申请号：US15033460

申请日：2015-11-13

Applicant: SANGO CO., LTD.

Inventor： Kentaro Nozu

IPC: B21D7/024 ,  B21D7/025 ,  B21D37/14

CPC classification number: B21D7/025 ,  B21D7/024 ,  B21D37/145

Abstract: A pipe bend die unit includes a bend die that comprises a clamp member and a counter pressure member, wherein the clamp member has a first groove part of half-circular cross section and a fitting recess extending in a peripheral direction by a first predetermined length on a planar surface perpendicular to a rotary axis. A fitting protrusion of the counter pressure member is positioned in the fitting recess to form a pipe-receiving groove of half-circular cross section, so that the counter pressure member and the clamp member are hingedly connected to one another about the rotary axis so as to be rotated relative to each other. The fitting recess possesses width expanding end face areas, where a clearance between opposing end faces is enlarged in a predetermined distance range including at least a radially outer end portion, from the rotary axis toward a radial outside.

公开(公告)号：US08991229B1

公开(公告)日：2015-03-31

申请号：US14181575

申请日：2014-02-14

Applicant: Chieh-Yu Cheng

Inventor： Chieh-Yu Cheng

IPC: B21D7/04 ,  B21D7/024 ,  B21D7/02 ,  B21D7/025

CPC classification number: B21D7/024 ,  B21D7/02 ,  B21D7/025

Abstract: A tube bender is provided. The rotatable member is pivoted to a pivot portion of a base and defines an inner space, and the rotatable member has a gear portion, a first arched groove and a holding portion. The gear portion archedly extends around the pivot portion. The first arched groove archedly extends around the pivot portion on an outer circumferential surface of the rotatable member, and the holding portion has a holding recess. The abutting assembly includes an abutting chunk assembled to the base and an arm member connected with the abutting chunk. A gear assembly includes a driving portion pivoted to the arm member and a gear connected and synchronously-movable with the driving portion. The gear engaged with the gear portion in the inner space.

Abstract translation: 提供弯管机。 可旋转构件枢转到基座的枢转部分并且限定内部空间，并且可旋转构件具有齿轮部分，第一拱形凹槽和保持部分。 齿轮部分围绕枢转部分拱形地延伸。 第一拱形凹槽在可旋转构件的外周表面上围绕枢转部分拱形地延伸，并且保持部分具有保持凹部。 邻接组件包括组装到基座的抵接块和与抵接块连接的臂构件。 齿轮组件包括枢转到臂构件的驱动部分和与驱动部分连接并同步移动的齿轮。 齿轮与内部空间中的齿轮部分接合。

公开(公告)号：US20110132056A1

公开(公告)日：2011-06-09

申请号：US13057403

申请日：2009-08-07

Applicant: Teruaki Yogo

Inventor： Teruaki Yogo

IPC: B21D7/025

CPC classification number: B21D7/022 ,  B21D7/024 ,  B21D7/025

Abstract: The present invention provides a pressing device for bending, in which a pipe is held between a bending die having a shape corresponding to a shape of bending and a clamping die revolvable around the bending die, and, when the pipe is bent by revolving the clamping die around the bending die, an axial compression force is applied to the pipe. The pressing device for bending includes a movable table arranged movable in an axial direction of the pipe, a first cylinder provided to the movable table and able to press a rear end of the pipe, and a second cylinder provided to the movable table and able to press a fixed side in a direction opposite to a direction in which the first cylinder presses the pipe.

Abstract translation: 本发明提供一种弯曲加压装置，其中管道保持在具有与弯曲形状相对应的形状的弯曲模具和可绕着弯曲模具周围的夹紧模具之间，并且当管道通过旋转夹紧而弯曲时 在弯曲模具周围，围绕管道施加轴向压缩力。 用于弯曲的按压装置包括可沿着管的轴向移动的可移动台，设置在可移动台上并能够按压管的后端的第一缸，以及设置在活动台上的第二缸， 在与第一气缸按压管道的方向相反的方向上按压固定侧。

公开(公告)号：US06711927B2

公开(公告)日：2004-03-30

申请号：US10024483

申请日：2001-12-21

Applicant: Tsutomu Furuyama ,  Yoshihiro Koshita ,  Mitsushige Kawakubo ,  Osamu Shinkai

Inventor： Tsutomu Furuyama ,  Yoshihiro Koshita ,  Mitsushige Kawakubo ,  Osamu Shinkai

IPC: B21D7024

CPC classification number: B21D7/025 ,  B21D7/024

Abstract: A bending apparatus for a long material comprises: supporting device for supporting a long material in cantilever fashion at least in a bending direction; bending device which nips the material at an input point apart from the supporting device and is rotated by a predetermined angle so as to bend the material between the supporting device and the input point; driving device for rotating the bending device; feeding device for moving the material toward the bending device and setting a position of the material; and moving device which sets up a separation distance between the supporting device and the bending device prior to bending of the material and allows the supporting device and the bending device to move relatively during the bending of the material.

Abstract translation: 用于长材料的弯曲装置包括：至少在弯曲方向上以悬臂方式支撑长材料的支撑装置; 弯曲装置，其在离开支撑装置的输入点处夹持材料并旋转预定角度，以便在支撑装置和输入点之间弯曲材料; 用于旋转弯曲装置的驱动装置; 进给装置，用于将材料朝向弯曲装置移动并设定材料的位置; 以及在材料弯曲之前在支撑装置和弯曲装置之间建立间隔距离的移动装置，并且允许支撑装置和弯曲装置在材料弯曲期间相对移动。

公开(公告)号：US06548008B1

公开(公告)日：2003-04-15

申请号：US09323781

申请日：1999-06-01

Applicant: Kazuya Kuriyama ,  Takayuki Furukoshi

Inventor： Kazuya Kuriyama ,  Takayuki Furukoshi

IPC: B29C5308

CPC classification number: B21D7/025

Abstract: Si material, which has been considered to be very brittle, and hard to bend, is heated to at least its brittle-ductile transition temperature. A bending moment is applied to a heated portion of the Si material so that a slip deformation is generated. Whereby it is possible to perform bending, and to greatly improve a degree of freedom for machining the Si material. The Si material has a brittle-ductile transition temperature which transfers from a brittle to a ductile state at its brittle-ductile transition temperature. At the transition temperature or more, the Si material is in a state that a slip can to be generated between its crystals in response to a bending torque applied thereto. Thus, when a bending moment is applied to the heated portion of the Si material which is heated to the transition temperature or more, a slip is generated between lattices or between crystal grains in the heated portion, so that the Si material is deformed.

Abstract translation: 被认为是非常脆的且难以弯曲的Si材料被加热到至少其脆性 - 延性转变温度。 弯曲力矩施加到Si材料的加热部分，从而产生滑动变形。 由此可以进行弯曲，并且大大提高了Si材料的加工自由度。 Si材料具有脆性 - 延性转变温度，其脆性 - 延性转变温度从脆性转变为延性。 在转变温度以上时，Si材料处于响应施加于其的弯曲转矩而在其晶体之间产生滑移的状态。 因此，当加热到转变温度以上的Si材料的加热部分施加弯曲力矩时，在加热部分的晶格之间或晶粒之间产生滑动，使得Si材料变形。

公开(公告)号：US06009737A

公开(公告)日：2000-01-04

申请号：US896030

申请日：1997-07-17

Applicant: Mark E. Bandy

Inventor： Mark E. Bandy

IPC: B21D7/025 ,  B21D9/07 ,  B21D9/05

CPC classification number: B21D7/025 ,  B21D9/073 ,  Y10T279/1008

Abstract: A tube-bending machine is provided for forming a tubular work piece having an inner surface. The tube-bending machine comprises a die assembly for forming the tubular work piece to assume a bent shape, actuator systems configured to move the tubular work piece to predetermined positions relative to the die assembly, a mandrel assembly including a mandrel rod having a first end and a second end spaced apart from the first end and a plurality of mandrel balls attached to the second end of the mandrel rod, and a gripping device for gripping the inner surface of the tubular work piece during advancement of the tube towards the die assembly. The first end of the mandrel rod is attached to the actuator. The gripping device is coupled to the actuator system and formed to include a mandrel rod-receiving aperture. The mandrel rod is positioned to lie in the mandrel rod-receiving aperture.

Abstract translation: 提供一种用于形成具有内表面的管状工件的弯管机。 管弯曲机包括用于形成呈弯曲形状的管状工件的模具组件，构造成将管状工件相对于模具组件移动到预定位置的致动器系统;心轴组件，其包括具有第一端 以及与所述第一端间隔开的第二端和附接到所述芯棒的第二端的多个心轴球，以及用于在将所述管朝向所述模具组件推进期间夹紧所述管状工件的内表面的夹持装置。 芯棒的第一端连接到致动器。 夹持装置联接到致动器系统并且形成为包括芯棒接收孔。 芯棒被定位成位于芯棒接收孔中。

公开(公告)号：US5421182A

公开(公告)日：1995-06-06

申请号：US225102

申请日：1994-04-08

Applicant: Gerald C. Rieck ,  Antoni J. Malarz

Inventor： Gerald C. Rieck ,  Antoni J. Malarz

IPC: B21D7/025 ,  B21D7/08

CPC classification number: B21D7/025

Abstract: A telescoping die for use in place of a conventional fixed die in a multi-axis tube bender. The telescoping die provides a means of automatically varying the distance to the moveable die thereby increasing the range of possible bend radii that can be formed while maintaining a close positioning between the feed mechanism and the telescoping die.

Abstract translation: 一种用于代替多轴弯管机中常规固定模具的伸缩模具。 伸缩模具提供了自动改变到可移动模具的距离的装置，从而增加可以形成的可能弯曲半径的范围，同时保持进给机构和伸缩模具之间的紧密定位。

公开(公告)号：US4195506A

公开(公告)日：1980-04-01

申请号：US918022

申请日：1978-06-22

Applicant: Shunpei Kawanami ,  Susumu Hanyo

Inventor： Shunpei Kawanami ,  Susumu Hanyo

IPC: B21D7/025 ,  B21D7/16 ,  B21D7/12

CPC classification number: B21D7/025

Abstract: The disclosure relates to a method of bending elongated materials such as pipe by applying a compressive primary bending force to the material at locations on either end of the portion of the material to be bent and locally stimulating bending of that portion of the material by the application of heat or a secondary bending force. The end portions of the materials are engaged by clamps, each clamp having an arm extending normal to the principle axis of the material. The compressive primary bend force is applied by exerting a force on locations on the arms displaced from the principal axis of the material, which force tends to draw the ends of the arms together.

Abstract translation: 本公开涉及一种通过在待弯曲材料部分的任一端上的位置处对材料施加压缩的初级弯曲力来弯曲细长材料（例如管）的方法，并且通过应用局部刺激该材料部分的弯曲 的热量或二次弯曲力。 材料的端部通过夹具接合，每个夹具具有垂直于材料主轴线延伸的臂。 通过对从材料的主轴偏移的臂上的位置施加力来施加压缩的初级弯曲力，该力倾向于将臂的端部拉在一起。

公开(公告)号：US4062216A

公开(公告)日：1977-12-13

申请号：US593961

申请日：1975-07-08

Applicant: Yukimitsu Hanamoto ,  Shigeki Unoki

Inventor： Yukimitsu Hanamoto ,  Shigeki Unoki

IPC: B21D7/025 ,  B21D7/16

CPC classification number: B21D7/162 ,  B21D7/025 ,  Y10S72/702

Abstract: This invention relates to methods and apparatus for accomplishing bending work on long metal materials such as pipe, bar and rod.

Abstract translation: 本发明涉及用于在诸如管，杆和杆的长金属材料上完成弯曲加工的方法和装置。