公开(公告)号：US06771363B1

公开(公告)日：2004-08-03

申请号：US10111188

申请日：2002-08-21

Applicant: Max Van Den Berg

Inventor： Max Van Den Berg

IPC: G01B1126

CPC classification number: B21D5/0209 ,  B21D5/006

Abstract: A method for determining the bending angle of a sheet which has been bent along a bending line, by generating at least one light beam, using these beams to project two points or line segments onto a part of the sheet to be checked which lies on one side of the bending line. The beams form an angle of incidence which is known in advance with the bending line of the sheet. These points or line segments are imaged onto receiving means and the distance between the points or line segments is determined, which have been projected onto the receiving means. The beams lie in two parallel detection planes, the distance between which is known. The bending angle is determined from the distance between the projected points, the known angles of incidence of the beams and the known distance between the detection planes.

Abstract translation: 一种用于通过产生至少一个光束来确定沿着弯曲线弯曲的片材的弯曲角度的方法，使用这些光束将两个点或线段投影到位于一个上的被检查片材的一部分上 一侧的弯曲线。 梁形成与纸张的弯曲线预先已知的入射角。 这些点或线段被成像到接收装置上，并且确定已经投影到接收装置上的点或线段之间的距离。 光束位于两个平行的检测平面中，其间的距离是已知的。 弯曲角度由投影点之间的距离，已知的光束入射角和检测平面之间的已知距离确定。

公开(公告)号：US5329597A

公开(公告)日：1994-07-12

申请号：US768205

申请日：1991-12-04

Applicant: Hidehiko Kouno ,  Yoshiaki Niwa ,  Akira Sengoku ,  Takayuki Aoki

Inventor： Hidehiko Kouno ,  Yoshiaki Niwa ,  Akira Sengoku ,  Takayuki Aoki

IPC: G01B11/02 ,  G01B11/26 ,  G06K9/00

CPC classification number: G01B11/024 ,  G01B11/26 ,  B21D5/006

Abstract: A device is provided for measuring an angle between two intersecting surfaces of a work. The device includes a light emitting device for inducing a light pattern on the surfaces of the work, a camera for picking up the pattern, and an image processor for processing the picture of the pattern and obtaining the angle of the work.

Abstract translation: PCT No.PCT / JP91 / 00234 Sec。 371 1991年12月4日第 102（e）日期1991年12月4日PCT 1991年2月22日提交PCT公布。 第WO91 / 13318号公报 日期1991年9月5日。一种用于测量工件的两个相交表面之间的角度的装置。 该装置包括用于在工件的表面上引起光图案的发光装置，用于拾取图案的照相机，以及用于处理图案的图像并获得工作角度的图像处理器。

公开(公告)号：US4430879A

公开(公告)日：1984-02-14

申请号：US273231

申请日：1981-06-12

Applicant: Burton A. Rolland

Inventor： Burton A. Rolland

IPC: B21D5/02 ,  G05B19/23 ,  B21D11/22

CPC classification number: B30B15/285 ,  B21D5/004 ,  B21D5/006 ,  B21D5/02 ,  G05B19/23 ,  G05B2219/34215 ,  G05B2219/36162 ,  G05B2219/41309 ,  G05B2219/45143 ,  G05B2219/49157

Abstract: A controller for a press brake, which provides for the accurate sequential bending of sheet metal by a press brake. The controller includes a microprocessor arrangement for operating a press brake in response to manually entered input to control a gauge stop and to produce output control signals relating to the relative positioning of the ram and die which positioning causes an angle of bend in a workpiece. Included is a sensing device for sensing the actual angle of bend in the workpiece and means for comparing the actual angle of bend to a desired angle. By such a comparison, the manual inputting of complex variables which are required to predetermine the precise relative positioning of the ram and die are made unnecessary. Further, feedback relating to the springback of the workpiece material causes sequential re-cycling of the press brake thereby improving the accuracy of the resulting angles produced. Also provided in conjunction with the optical digitizer is a safety zone detection arrangement which automatically shuts off the operation of the press brake in the event that either a worker or an undesired object comes within a predetermined range of the operational area.

Abstract translation: 一种用于压力制动器的控制器，其通过压力制动器提供金属片的精确连续弯曲。 控制器包括微处理器装置，用于响应于手动输入的输入来操作压制机，以控制量规停止并产生与压头和模具的相对定位相关的输出控制信号，所述定位引起工件中的弯曲角度。 包括用于感测工件中的实际弯曲角度的感测装置和用于将实际的弯曲角度与期望的角度进行比较的装置。 通过这样的比较，不需要手动输入预先确定冲头和模具的精确相对定位所需的复杂变量。 此外，与工件材料的回弹相关的反馈导致压制机的顺序重新循环，从而提高所产生的角度的精度。 还与光学数字转换器一起提供的是安全区域检测装置，其在工作人员或不期望的物体进入操作区域的预定范围内时自动关闭压制机的操作。

公开(公告)号：US3874205A

公开(公告)日：1975-04-01

申请号：US44377374

申请日：1974-02-19

Applicant: HURCO MFG CO INC

Inventor： ROCH GERALD V ,  SONN EDWARD H

IPC: B21D5/00 ,  B21D5/02 ,  B30B15/18 ,  B30B15/26 ,  G05B19/23 ,  G05B19/4093

CPC classification number: B21D5/00 ,  B21D5/006 ,  B21D5/02 ,  B30B15/18 ,  B30B15/26 ,  G05B19/238 ,  G05B19/4093 ,  Y02P90/265

Abstract: A hydraulically driven press brake has an automatically positioned back gauge capable of changing workpiece gauging location after each bend. Variable ram closing stroke depth and variable ram return (opening) stroke length, is manually preprogrammable digitally by dial-in switches, and automatically coordinated with the gauge to provide the desired ram stroke depth for each bend in the workpiece and an appropriate subsequent length of ram return stroke. A rotary encoder monitors travel of the ram and supplies information to the control for the necessary positioning and coordination. Zero referencing is provided for the ram at closed condition, so all ram positions are designated by positive readings.

Abstract translation: 液压驱动的压力制动器具有自动定位的后表，其能够在每个弯曲之后改变工件测量位置。 可变柱塞关闭行程深度和可变柱塞回程（打开）行程长度，可通过拨入开关数字地手动预编程，并自动与量规协调，为工件中的每个弯曲提供所需的冲程行程深度，以及适当的后续 柱塞返回行程的长度。 旋转编码器监控柱塞的行程，并将信息提供给控制器进行必要的定位和协调。 在关闭状态下为压头提供零参考，所以所有的柱塞位置都由正读数指定。

公开(公告)号：US20230219126A1

公开(公告)日：2023-07-13

申请号：US17647516

申请日：2022-01-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lu Huang ,  Hui-ping Wang ,  Bradley J. Blaski ,  Joshua Lee Solomon ,  Blair E Carlson

IPC: B21D5/00 ,  B21D5/02

CPC classification number: B21D5/004 ,  B21D5/006 ,  B21D5/02

Abstract: Systems and methods for bending a material to a target resultant bending parameter using a bend forming tool are disclosed. The systems and methods receive values for parameters of properties of the material and of a bending process to be performed by the bend forming tool, creating or retrieving a calibration curve relating input bending parameter and resultant bending parameter based on the values from a database of calibration curves, determining a first springback compensated input bending parameter based on the target resultant bending parameter using the calibration curve, inputting the first springback compensated input bending parameter to the bend forming tool, and in a first step of bending the material, bending the material to the first springback compensated input bending parameter by applying the bending process using the bend forming tool.

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：US09442471B2

公开(公告)日：2016-09-13

申请号：US14003263

申请日：2012-03-02

Applicant: Andrea Frigo

Inventor： Andrea Frigo

IPC: G06F19/00 ,  G05B15/02 ,  B21D5/00 ,  B21D5/04

CPC classification number: G05B15/02 ,  B21D5/004 ,  B21D5/006 ,  B21D5/045

Abstract: Described is a procedure for controlling the shape of a complex metal profile obtained by a successive series of a plurality of bends of a metal sheet on a panel bender machine equipped with a data processing and functions control unit for the machine comprising the entering in the processing unit of data relative to a drawing of the complex profile with physical coordinates, as well as data relative to the thickness of the metal sheet and the distance from the axis of the panel bender machine of the metal sheet-profile edge, and conversion of the drawing supplied with physical coordinates into a digital image with imaging coordinates. The nominal profile processed as above is shown on a suitable display superimposed on the image of the complex profile of the metal sheet acquired by a suitably positioned TV camera. A visual control the correspondence between the two superimposed profiles is then performed on the display. From this comparison it is possible to make corrections to the bending parameters of the panel bender machine.

Abstract translation: 描述了一种用于控制在配备有用于机器的数据处理和功能控制单元的面板弯曲机上通过金属片的多个弯曲的连续系列获得的复合金属型材的形状的过程，包括进入处理 相对于具有物理坐标的复杂轮廓的图的数据单位，以及相对于金属板的厚度的数据以及与金属板型边缘的板弯曲机的轴线的距离，以及 绘图提供物理坐标成为具有成像坐标的数字图像。 如上所述处理的标称轮廓在合适的显示器上示出，叠加在由适当定位的电视摄像机获取的金属片的复合轮廓图像上。 然后在显示器上执行视觉控制两个叠加轮廓之间的对应关系。 从该比较可以对面板弯曲机的弯曲参数进行校正。

公开(公告)号：US09289810B2

公开(公告)日：2016-03-22

申请号：US13875635

申请日：2013-05-02

Applicant: SALVAGNINI ITALIA S.p.A.

Inventor： Gianfranco Nardetto ,  Flavio Battistelli

IPC: B21D5/00 ,  G01B11/26

CPC classification number: B21D5/006 ,  G01B11/26

Abstract: An apparatus for measuring a bending angle of a sheet, comprising a processing unit and at least one sensor comprising a light source which projects a light pattern on at least one side of the sheet, and recording means adapted to record an image of the projection of said light pattern on the at least one side of the sheet. The processing unit is adapted to control the recording means for recording the image in at least one time instant (Treg1; Treg1, Treg2 . . . Tregn) during an operation of bending the sheet; a control unit is capable of transforming the recorded image into a point cloud and comprises a neural network adapted to associate a bending angle value with the point cloud.

Abstract translation: 一种用于测量片材的弯曲角度的装置，包括处理单元和至少一个传感器，所述至少一个传感器包括在所述片材的至少一侧上突出光图案的光源，以及适于记录所述投影的图像的记录装置 所述光图案在所述片材的至少一侧上。 处理单元适于在弯曲片材的操作期间控制在至少一个时刻（Treg1; Treg1，Treg2 ... Tregn）中记录图像的记录装置; 控制单元能够将记录的图像变换为点云，并且包括适于将弯曲角度值与点云相关联的神经网络。

公开(公告)号：US20160040973A1

公开(公告)日：2016-02-11

申请号：US14490743

申请日：2014-09-19

Applicant: Salvagnini Italia S.p.A.

Inventor： Enzo Gesuita

IPC: G01B5/24 ,  G01C19/5712

CPC classification number: G01B5/24 ,  B21D5/006 ,  G01B21/22 ,  G01C19/5712

Abstract: An apparatus for measuring a bending angle between two portions of a workpiece in a bending machine includes at least a motion sensor unit provided with a gyroscope sensor, a processing unit connected with the gyroscope sensor and a coupling device for connecting the motion sensor unit with a portion of the workpiece to be bent. During a bending operation of the workpiece the gyroscope sensor measures at least one angular velocity and a related rotation angle of the portion according to an axis and the processing unit receives data from the gyroscope sensor regarding the rotation angle in order to calculate the bending angle as a function of the rotation angle.

Abstract translation: 一种用于在弯曲机中测量工件的两部分之间的弯曲角度的装置至少包括具有陀螺仪传感器的运动传感器单元，与陀螺仪传感器连接的处理单元和用于将运动传感器单元与 要弯曲的工件的一部分。 在工件的弯曲操作期间，陀螺仪传感器根据轴测量该部分的至少一个角速度和相关旋转角度，并且处理单元从陀螺传感器接收关于旋转角度的数据，以便计算弯曲角度为 旋转角度的函数。

公开(公告)号：US20150068414A1

公开(公告)日：2015-03-12

申请号：US14473716

申请日：2014-08-29

Applicant: JANOME SEWING MACHINE CO., LTD.

Inventor： Masahiko Nakano ,  Kenichiro Hiruma

IPC: B30B15/26 ,  B30B15/00

CPC classification number: B30B15/26 ,  B21D5/004 ,  B21D5/006 ,  B21D5/02 ,  B30B1/186 ,  B30B15/0094 ,  G05B2219/37403

Abstract: A detection unit for detecting a data row of a press position and a load at the press position; an input/storage unit for storing at least a load value serving as references for determining stop or judge; a calculation unit of the value of the slope of the load for calculating the value of the slope of the load based on the press position and the load at the press position detected; a calculation unit of the value of the slope of the slope of the load for calculating the value of the slope of the slope of the load based on the calculated value of the slope of the load; and a determination unit for comparing the calculated value of the slope of the slope of the load with the values serving as the references to determine stop or judge are provided.

Abstract translation: 检测单元，用于检测按压位置的数据行和按压位置处的负载; 用于至少存储用作确定停止或判断的参考的负载值的输入/存储单元; 用于计算基于所述按压位置的负载斜率值和所检测到的所述按压位置处的负载的所述负载的斜率值的计算单元; 基于负载的斜率的计算值，计算用于计算负载的斜率的斜率的值的负载的斜率的斜率值的计算单元; 并且提供一个确定单元，用于将计算的负载斜率的斜率的值与用作确定停止或判定的参考的值进行比较。