公开(公告)号：US12076776B2

公开(公告)日：2024-09-03

申请号：US17563087

申请日：2021-12-28

Applicant: Kawasaki Jukogyo Kabushiki Kaisha ,  LVD Company nv

Inventor： Hideki Okada ,  Hiroki Oribe ,  Hitoshi Yano ,  Kristof Tyvaert ,  Alexander Cornelus

IPC: B21D5/02

CPC classification number: B21D5/0209 ,  B21D5/0272 ,  B21D5/0281

Abstract: There is provided a press brake that can improve forming accuracy in partial bending. A press brake includes: a conveying mechanism that intermittently conveys a workpiece; a die including a pair of shoulder portions and a groove portion located between the pair of shoulder portions, the pair of shoulder portions being arranged away from each other in a conveying direction of the workpiece and supporting a rear surface of the workpiece; a backup plate that extends on the pair of shoulder portions, covers the groove portion, and is interposed between the die and the workpiece; and a punch that moves relative to the die so as to approach the die each time the conveying mechanism stops conveying the workpiece and presses the workpiece so as to bend the workpiece within an elastic deformation region of the backup plate.

公开(公告)号：US20180172438A1

公开(公告)日：2018-06-21

申请号：US15577759

申请日：2016-05-25

Applicant: KEBA AG

Inventor： Johann Wögerbauer ,  Andreas Wögerbauer

IPC: G01B11/26 ,  B21C51/00

CPC classification number: G01B11/26 ,  B21C51/00 ,  B21D5/006 ,  B21D5/02 ,  B21D5/0272 ,  G01B21/047 ,  G01B21/22 ,  G01B2210/58

Abstract: An electronic angle measuring device for measuring the bending angle between the legs (4) of a metal sheet (5) having a sensor element (7) which delivers angle-equivalent signals in a contact-free manner to a signal processing device (9) comprising a microprocessor and a memory unit which is connected to a digital display (10) is described. In order to create advantageous measurement conditions, it is proposed that a sensor element (7) which deflects a laser beam through a rotating mirror onto the two legs (4) of the metal sheet (5) and which forms a measured value from the reflection beam received in the emission direction, the signal processing device (9) with the microprocessor and the memory unit as well as the digital display (10) form an angle measuring device (6) which can be fastened to an upper tool (1) of a bending machine and which can be used as a manual measuring device (6).

公开(公告)号：US09440275B2

公开(公告)日：2016-09-13

申请号：US14433834

申请日：2013-09-24

Applicant: Nivora IP B.V.

Inventor： Ronald Bruntink

IPC: B21D31/00 ,  B21D5/02 ,  B30B15/00 ,  B30B1/30 ,  B30B15/16

CPC classification number: B21D5/0272 ,  B21D5/02 ,  B30B1/30 ,  B30B15/007 ,  B30B15/163

Abstract: The invention relates to a device for working sheet-like material, such as a press brake for bending steel sheet. The device includes: a frame; two, relative to each other movable, substantially parallel beams for working the sheet-like material, which beams are connected to the frame; driving means for driving the substantially parallel beams away or towards each other; at least one spring means, connected at a horizontal position along said beams for urging the beams away from each other; wherein the spring means have a spring constant that is adjustable.

Abstract translation: 本发明涉及一种用于加工片状材料的装置，例如用于弯曲钢板的压制机。 该装置包括：一个框架; 两个相对于彼此可移动的基本上平行的用于加工片状材料的梁，这些梁连接到框架; 驱动装置，用于驱动基本上平行的光束离开或朝向彼此; 至少一个弹簧装置，沿着所述梁在水平位置处连接，以将梁彼此远离; 其中弹簧装置具有可调节的弹簧常数。

公开(公告)号：US20140165689A1

公开(公告)日：2014-06-19

申请号：US14123112

申请日：2012-05-29

Applicant: FINN-POWER ITALIA S.r.I

Inventor： Luigi Patuzzi ,  Martti Vesa

IPC: B21D5/02

CPC classification number: B21D5/0281 ,  B21D5/02 ,  B21D5/0272

Abstract: Press brakes capable of a high processing accuracy and short cycle times are provided.

Abstract translation: 提供了具有高加工精度和短循环时间的压制制动器。

公开(公告)号：US20130312479A1

公开(公告)日：2013-11-28

申请号：US13984317

申请日：2012-02-07

Applicant: Hirohito Nagahashi

Inventor： Hirohito Nagahashi

IPC: B21D22/02

CPC classification number: B21D22/02 ,  B21D5/004 ,  B21D5/0272

Abstract: A bending machine includes a frame, a punch holder provided on the frame, a die holder provided on the frame, a pressing mechanism for pressing a punch toward a die, a first deflection detector for detecting a stroke of the punch, a second deflection detector for detecting an actual displacement of the punch, and a controller; and the controller previously stores a relation between a deflection of the frame and a specification of a sheet material, calculates an actual deflection of the frame by subtracting a detection value of the second deflection detector from a detection value of the first deflection detector, gets a target deflection of the frame based on the relation stored, and controls the pressing mechanism so that the actual deflection becomes consistent with the target deflection. According to the bending machine, working efficiency can be improved by rendering a trial bending unnecessary.

Abstract translation: 弯曲机包括框架，设置在框架上的冲头保持器，设置在框架上的模具保持器，用于将冲头压向模具的按压机构，用于检测冲头行程的第一偏转检测器，第二偏转检测器 用于检测冲头的实际位移和控制器; 并且控制器预先存储帧的偏转和片材的规格之间的关系，通过从第一偏转检测器的检测值减去第二偏转检测器的检测值来计算帧的实际偏转，得到 基于所存储的关系，框架的目标偏转，并且控制按压机构，使得实际偏转变得与目标偏转一致。 根据弯曲机，可以通过不需要试验弯曲来提高工作效率。

公开(公告)号：US20130152661A1

公开(公告)日：2013-06-20

申请号：US13819740

申请日：2011-08-09

Applicant: Wataru Imaeda ,  Akinobu Watanabe

Inventor： Wataru Imaeda ,  Akinobu Watanabe

IPC: B21D5/02 ,  B30B1/23

CPC classification number: B21D5/02 ,  B21D5/0272 ,  B30B1/18 ,  B30B1/23 ,  B30B1/32 ,  B30B15/026 ,  B30B15/068 ,  B30B15/16 ,  B30B15/163 ,  B30B15/183

Abstract: A press machine includes a lifting mechanism that selectively lowers and lifts a die on a movable side. The lifting mechanism includes a motor driven lifting unit using a servomotor as a drive source thereof, and a hydraulically driven lifting unit using a hydraulic actuator as a drive source thereof. The lifting mechanism is controlled so as to enable the motor driven lifting unit to move the die on the movable side from a standby position to a drive system changeover position immediately before a press start position at which the die on the movable side starts contacting a workpiece to be processed and so as to enable the hydraulically driven lifting unit to move the die on the movable side from the drive system changeover position to a top dead center position.

Abstract translation: 压机包括提升机构，其选择性地降低和提升可移动侧的模具。 提升机构包括使用伺服电动机作为其驱动源的电动机提升单元和使用液压致动器作为其驱动源的液压驱动的提升单元。 控制提升机构，以使马达驱动提升单元能够将可移动侧的模具从备用位置移动到紧接在可动侧的模具开始接触工件的冲压开始位置之前的驱动系统切换位置 以使得液压驱动的提升单元能够将可移动侧的模具从驱动系统切换位置移动到上止点位置。

公开(公告)号：US20120266645A1

公开(公告)日：2012-10-25

申请号：US13089676

申请日：2011-04-19

Applicant: Bruno J. Pelech

Inventor： Bruno J. Pelech

IPC: B21D37/04 ,  B23P11/00

CPC classification number: B21D37/04 ,  B21D5/002 ,  B21D5/0236 ,  B21D5/0272 ,  Y10T29/49963

Abstract: An adjustment compensator device for a press brake die includes an elongate engagement member, an elongate die holder, an elongate primary adjustment wedge and at least two elongate secondary adjustment wedges. The elongate primary adjustment wedge is positioned between and extending along at least a portion of the elongate engagement member and the elongated die holder, and at least a portion of primary adjustment wedge is adjustable in a direction transverse to an elongate length of the engagement member. The at least two elongate secondary adjustment wedges have a length wherein each of the secondary adjustment wedges is less than a length of the primary adjustment wedge. The elongate secondary adjustment wedges are positioned end to end in a direction along a length of the die holder and positioned between the engagement member and the die holder. Each of the elongate secondary adjustment wedges is adjustable in a direction transverse to the elongate length of the engagement member.

Abstract translation: 用于压制模具的调节补偿装置包括细长接合构件，细长模具保持器，细长主调节楔和至少两个细长的次级调节楔。 细长的初级调节楔定位在细长接合构件和细长模具座的至少一部分之间并沿其延伸，并且主调节楔的至少一部分在横向于接合构件的细长长度的方向上是可调节的。 所述至少两个细长的次级调节楔具有长度，其中每个次级调节楔小于初级调节楔的长度。 细长的二次调节楔在沿着模具座的长度的方向上端对齐地定位在接合构件和模座之间。 每个细长的二次调节楔可以在横向于接合构件的细长长度的方向上调节。

公开(公告)号：US07503200B2

公开(公告)日：2009-03-17

申请号：US10546909

申请日：2004-02-19

Applicant: Gerrit Gerritsen ,  Piero Papi

Inventor： Gerrit Gerritsen ,  Piero Papi

IPC: B31D5/02 ,  B30B15/24

CPC classification number: B30B15/007 ,  B21D5/0272 ,  B30B15/245 ,  Y10S72/702

Abstract: Method of correcting a bending operation performed by a press brake, the bottom beam of which contains deformation compensation cylinders, in which a calibration nomogram is pre-recorded using very short calibration pieces, this nomogram establishing a correspondence between the forces measured at the side frames and the pressures applicable to the compensation cylinders in order to keep the bottom beam substantially straight. During a subsequent bending operation, pressure values resulting from this nomogram are applied to the compensation cylinders according to the forces measured at the side frames. A bottom dead center is recalculated by taking account of the deformation of the top beam, the deformation of the side frames, the actual length and thickness of the piece, and the spring effect.

Abstract translation: 校正由底部梁包含变形补偿缸的压制机执行的弯曲操作的方法，其中使用非常短的校准件预先记录校准列线图，该线图确定在侧框架处测量的力之间的对应关系 以及适用于补偿缸的压力，以便保持底梁基本上直线。 在随后的弯曲操作期间，根据在侧框架处测量的力将由该列线图产生的压力值施加到补偿缸。 通过考虑顶梁的变形，侧框的变形，件的实际长度和厚度以及弹簧的作用来重新计算下死点。

公开(公告)号：US20080066520A1

公开(公告)日：2008-03-20

申请号：US11662420

申请日：2005-08-30

Applicant: Gerhard Sperrer

Inventor： Gerhard Sperrer

IPC: B21D5/02

CPC classification number: B21D5/0272 ,  B30B15/044

Abstract: A method of producing a workpiece by bending a panel in a bending press, in particular an edge bending press, with measures for compensating deformations of the edge bending press due to load. The measures involve detecting the displacement forces of drive means whilst the panel is being bent at a bending depth of the bending tools that is slightly shorter than a bending depth needed to produce a predefined bending angle. From the detected displacement forces, the bending deformation of the press beams corresponding to them are determined and the displacement force of the drive means is reduced, after which a compensating device is displaced in order to set a complementary camber in support surfaces for the bending tools or tool holders, and the panel is finally bent by displacing the press beam to the bending depth corresponding to the predefined bending angle.

Abstract translation: 通过在弯曲压力机，特别是边缘弯曲压力机中弯曲面板来制造工件的方法，其具有用于补偿由于负载引起的边缘弯曲压力机的变形的措施。 这些措施涉及检测驱动装置的位移力，同时面板在弯曲工具的弯曲深度处弯曲，该弯曲深度略短于产生预定弯曲角所需的弯曲深度。 根据检测到的位移力，确定与其对应的压力梁的弯曲变形，并且减小驱动装置的位移力，然后补偿装置移位，以便在弯曲工具的支撑表面中设置互补的弯度 或工具保持器，并且通过将压力梁移动到对应于预定弯曲角度的弯曲深度来最终弯曲面板。

公开(公告)号：US20050160781A1

公开(公告)日：2005-07-28

申请号：US11088442

申请日：2005-03-24

Applicant: Wolfgang Kutschker

Inventor： Wolfgang Kutschker

IPC: B21D5/04 ,  B65D27/06 ,  B21D11/00

CPC classification number: B21D5/0272 ,  B21D5/04 ,  B65D27/06

Abstract: The invention concerns a bending machine comprising a machine frame, and upper bar and a lower bar mounted on the frame and mutually mobile, a bending bar mounted on the frame, a bending bar mounted on the frame and mobile relative to the frame, to the upper bar and to the lower bar, said bending bar being provided with a support and a bending tool pressing on said support via a bending device actuated by a control unit. The invention aims at making the bending adjustment faster and more accurate. Therefor, said bending device is equipped with an adjusting device capable of being used during a bending operation; the adjusting device, which is actuated by the control unit, can be controlled during a bending operation; at least one sensor associated with the control unit enables detection, through the adjusting device of an adjustment performed by the control unit. For a given bending operation, the control unit determines at least one bending parameter for the bending device, the bending bar tool being set in a substantially flexure-free position at the end of the bending operation.

Abstract translation: 本发明涉及一种弯曲机，其包括机架，并且上杆和安装在框架上并相互移动的下杆，安装在框架上的弯曲杆，安装在框架上并且相对于框架移动的弯曲杆， 上杆和下杆，所述弯曲杆设置有支撑件和弯曲工具，该弯曲工具通过由控制单元致动的弯曲装置压在所述支撑件上。 本发明旨在使弯曲调整更快更准确。 因此，所述弯曲装置配备有能够在弯曲操作期间使用的调节装置; 可以在弯曲操作期间控制由控制单元致动的调节装置; 与控制单元相关联的至少一个传感器能够通过调节装置检测由控制单元执行的调整。 对于给定的弯曲操作，控制单元确定弯曲装置的至少一个弯曲参数，弯曲杆工具在弯曲操作结束时被设置在基本上无挠曲的位置。