公开(公告)号：US5704238A

公开(公告)日：1998-01-06

申请号：US693255

申请日：1996-08-19

Applicant: Shigeru Tokai

Inventor： Shigeru Tokai

IPC: B21D5/02 ,  G05B19/404 ,  G05B19/408 ,  B21C51/00

CPC classification number: G05B19/408 ,  B21D5/02 ,  B21D5/0209 ,  G05B19/404 ,  G05B2219/35362 ,  G05B2219/35475 ,  G05B2219/37403 ,  G05B2219/45143 ,  G05B2219/49184

Abstract: According to data from an NC device 10, a processing factor specifying section 13 specifies processing factors having effect on the bending angle. A tolerance setting section 14 sets a tolerance for each specified processing factor and a bend grouping section 15 classifies bends into groups using the tolerances. Then, a correcting condition setting section 16 establishes correcting conditions and a correction data computing section 17 computes correction data for depth according to data representative of the actual depth of an acceptable bend so as to meet the correcting conditions. Based on the correction data, a process data modifying section 18 modifies data representative of the processes of a bending operation. In this way, depth for a bend the angle of which has not been measured can be corrected based on the correction value for depth for another bend the angle of which has been measured.

Abstract translation: PCT No.PCT / JP95 / 00572 Sec。 371日期：1996年8月19日 102（e）日期1996年8月19日PCT 1995年3月27日PCT公布。 出版物WO95 / 26240 日期1995年10月5日根据NC设备10的数据，处理因子确定部13指定对弯曲角度有影响的处理因素。 公差设定部分14设定每个指定的处理因子的公差，并且弯曲分组部分15使用公差将弯曲分成组。 然后，校正条件设定部分16建立校正条件，并且校正数据计算部分17根据表示可接受弯道的实际深度的数据计算深度校正数据，以满足校正条件。 基于校正数据，处理数据修改部分18修改表示弯曲操作的处理的数据。 以这种方式，可以基于已经测量其角度的另一个弯曲的深度的校正值来校正其未被测量的弯曲的深度。

公开(公告)号：US5839310A

公开(公告)日：1998-11-24

申请号：US702697

申请日：1996-09-12

Applicant: Shigeru Tokai ,  Masaaki Takada

Inventor： Shigeru Tokai ,  Masaaki Takada

IPC: B21D5/02 ,  G05B19/404

CPC classification number: G05B19/404 ,  B21D5/02 ,  B21D5/0209 ,  G05B2219/37403 ,  G05B2219/37526 ,  G05B2219/45143 ,  G05B2219/49184 ,  Y10S72/702

Abstract: For starting bending of a workpiece, a provisional drive end for a ram is computed from information such as processing conditions for the workpiece input through a processing (condition input section and the relationship between the target bending angle for the workpiece and the springback angle of the workpiece stored in a springback data section. The ram is driven to the provisional drive end and then the bending angle of the workpiece is measured thereat by an angle measuring unit. Thereafter, a final drive end for the ram is obtained from (i) the measured bending angle, (ii) the relationship between the bending angle of the workpiece and the amount of driving the ram stored in a bending angle vs. driving amount data section, and (iii) the relationship between the target bending angle for the workpiece and the springback angle of the workpiece stored in a springback data section. The ram is driven to the final drive end thus obtained to complete the bending operation.

Abstract translation: PCT No.PCT / JP95 / 00571 Sec。 371日期：1996年9月12日 102（e）日期1996年9月12日PCT 1995年3月27日PCT PCT。 WO95 / 26239 PCT出版物 日期1995年10月5日对于工件的起弧弯曲，通过处理（条件输入部以及工件的目标弯曲角度与工件的目标弯曲角度之间的关系）等信息，计算用于冲头的临时驱动端 将回转角度保存在回弹数据部分中，将压头驱动到临时驱动端，然后通过角度测量单元测量工件的弯曲角度，然后获得冲头的最终传动端 从（i）测量的弯曲角度，（ii）工件的弯曲角度与弯曲角度相对于驱动量数据部分存储的冲头的驱动量之间的关系，以及（iii）目标弯曲之间的关系 工件的角度和存储在回弹数据部分中的工件的回弹角度，将柱塞驱动到由此获得的最终传动端，以完成弯曲操作 n。

公开(公告)号：US4510789A

公开(公告)日：1985-04-16

申请号：US448604

申请日：1982-12-10

Applicant: Kunio Tomioka ,  Shigeru Tokai ,  Tatsuo Tsuchida

Inventor： Kunio Tomioka ,  Shigeru Tokai ,  Tatsuo Tsuchida

IPC: B21D5/00 ,  B21D5/02 ,  B21D5/04 ,  B21D43/26

CPC classification number: B21D5/02 ,  B21D5/002 ,  B21D5/0254

Abstract: A press brake adapted to apply bending on metal blanks in the form of a sheet or plate includes a plurality of die assemblies located on a die holder at intervals of a predetermined distance in the direction perpendicular to the logitudinal direction of a bed of the press brake. The die holder is mounted on the bed movably in the direction perpendicular to the longitudinal direction of the bed. Each of the die assemblies is provided with an upper die and a lower die which are associated with each other and movable vertically towards and away from each other. The press brake further includes a pair of front and inside stoppers located on the front side and the inner side of the press brake body, respectively, so as to be movable freely towards and away from each other and pass through a space between the upper and lower dies.

Abstract translation: 一种适于在片材或板材形式的金属坯料上施加弯曲的压制机包括多个模具组件，其在垂直于压制机床的纵向的方向上以预定距离间隔设置在模具座上 。 模具座在垂直于床的纵向的方向上可移动地安装在床上。 每个模具组件设置有上模具和下模具，它们彼此相关联并且可以彼此垂直且远离彼此移动。 压力制动器还包括分别位于压制机主体的前侧和内侧的一对前内挡块，以便能够彼此自由地移动和移开，并穿过上下 下模。

公开(公告)号：US5899964A

公开(公告)日：1999-05-04

申请号：US780356

申请日：1997-01-18

Applicant: Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

Inventor： Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

IPC: B21D5/02 ,  G01B11/26 ,  G06K9/46 ,  G06K9/50 ,  G06T7/00 ,  G06T7/60 ,  G06K9/00

CPC classification number: G06T7/606 ,  B21D5/02 ,  G01B11/26 ,  G06K9/4604 ,  G06K9/50 ,  G06T7/0002 ,  G06T7/604 ,  G06T2207/20224 ,  G06T2207/30136 ,  G06T2207/30164

Abstract: In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and position of the specimen in an image; and the bending angle of the workpiece is obtained by accessing the data, with the inclination angle and position of the linear projected light image in an image produced by photographing. In main straight line extraction, main pixels are obtained from the distribution of the brightness of pixels aligned on specified axes and a main straight line is obtained from a plurality of main pixels. For extracting only a necessary straight line from an image including unnecessary straight lines, the photographing device is so disposed as to photograph a lower bender and a second straight line from the bottom end of the image is extracted. In setting a bending angle detecting position, a potential bending step where the bending angle detection of the workpiece might be performed is calculated from simulation data on the bending state of the workpiece in each bending step.

Abstract translation: 在弯曲角度检测中，通过拍摄装置拍摄形成在工件表面上的线性投影光图像; 样本的实际倾斜角度与图像中的样本的倾斜角度和位置对应地存储为数据; 并且通过以通过拍摄产生的图像中的线性投影光图像的倾斜角度和位置访问数据来获得工件的弯曲角度。 在主直线提取中，主要像素是从指定轴上排列的像素的亮度的分布获得的，并且从多个主像素获得主直线。 为了从包括不必要的直线的图像中仅提取必要的直线，拍摄装置被设置成拍摄下弯曲机，并且从图像的底端提取第二直线。 在设定弯曲角度检测位置时，通过在各弯曲工序中的工件的弯曲状态的模拟数据，计算可以进行工件的弯曲角度检测的电位弯曲步骤。

公开(公告)号：US5661671A

公开(公告)日：1997-08-26

申请号：US522116

申请日：1995-08-31

Applicant: Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

Inventor： Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

IPC: B21D5/02 ,  G01B11/26 ,  G06K9/46 ,  G06K9/50 ,  G06T7/00 ,  G06T7/60 ,  G06K9/00

CPC classification number: G06T7/606 ,  B21D5/02 ,  G01B11/26 ,  G06K9/4604 ,  G06K9/50 ,  G06T7/0002 ,  G06T7/604 ,  G06T2207/20224 ,  G06T2207/30136 ,  G06T2207/30164

Abstract: In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and position of the specimen in an image; and the bending angle of the workpiece is obtained by accessing the data, with the inclination angle and position of the linear projected light image in an image produced by photographing. In main straight line extraction, main pixels are obtained from the distribution of the brightness of pixels aligned on specified axes and a main straight line is obtained from a plurality of main pixels. For extracting only a necessary straight line from an image including unnecessary straight lines, the photographing device is so disposed as to photograph a lower bender and a second straight line from the bottom end of the image is extracted. In setting a bending angle detecting position, a potential bending step where the bending angle detection of the workpiece might be performed is calculated from simulation data on the bending state of the workpiece in each bending step.

Abstract translation: 在弯曲角度检测中，通过拍摄装置拍摄形成在工件表面上的线性投影光图像; 样本的实际倾斜角度与图像中的样本的倾斜角度和位置对应地存储为数据; 并且通过以通过拍摄产生的图像中的线性投影光图像的倾斜角度和位置访问数据来获得工件的弯曲角度。 在主直线提取中，主要像素是从指定轴上排列的像素的亮度的分布获得的，并且从多个主像素获得主直线。 为了从包括不必要的直线的图像中仅提取必要的直线，拍摄装置被设置成拍摄下弯曲机，并且从图像的底端提取第二直线。 在设定弯曲角度检测位置时，通过在各弯曲工序中的工件的弯曲状态的模拟数据，计算可以进行工件的弯曲角度检测的电位弯曲步骤。

公开(公告)号：US5652805A

公开(公告)日：1997-07-29

申请号：US290877

申请日：1994-08-31

Applicant: Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

Inventor： Toshiyuki Ooenoki ,  Toshiro Otani ,  Shigeru Tokai

IPC: B21D5/02 ,  G01B11/26 ,  G06K9/46 ,  G06K9/50 ,  G06T7/00 ,  G06T7/60 ,  G06K9/00

CPC classification number: G06T7/606 ,  B21D5/02 ,  G01B11/26 ,  G06K9/4604 ,  G06K9/50 ,  G06T7/0002 ,  G06T7/604 ,  G06T2207/20224 ,  G06T2207/30136 ,  G06T2207/30164

Abstract: In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and position of the specimen in an image; and the bending angle of the workpiece is obtained by accessing the data, with the inclination angle and position of the linear projected light image in an image produced by photographing. In main straight line extraction, main pixels are obtained from the distribution of the brightness of pixels aligned on specified axes and a main straight line is obtained from a plurality of main pixels. For extracting only a necessary straight line from an image including unnecessary straight lines, the photographing device is so disposed as to photograph a lower bender and a second straight line from the bottom end of the image is extracted. In setting a bending angle detecting position, a potential bending step where the bending angle detection of the workpiece might be performed is calculated from simulation data on the bending state of the workpiece in each bending step.

Abstract translation: PCT No.PCT / JP94 / 00773 Sec。 371日期1994年8月31日 102（e）日期1994年8月31日PCT提交1994年5月12日PCT公布。 公开号WO94 / 27756 日期1994年12月8日在弯曲角度检测中，通过拍摄装置拍摄形成在工件表面上的线性投影光图像; 样本的实际倾斜角度与图像中的样本的倾斜角度和位置对应地存储为数据; 并且通过以通过拍摄产生的图像中的线性投影光图像的倾斜角度和位置访问数据来获得工件的弯曲角度。 在主直线提取中，主要像素是从指定轴上排列的像素的亮度的分布获得的，并且从多个主像素获得主直线。 为了从包括不必要的直线的图像中仅提取必要的直线，拍摄装置被设置成拍摄下弯曲机，并且从图像的底端提取第二直线。 在设定弯曲角度检测位置时，通过在各弯曲工序中的工件的弯曲状态的模拟数据，计算可以进行工件的弯曲角度检测的电位弯曲步骤。

公开(公告)号：US5272643A

公开(公告)日：1993-12-21

申请号：US674349

申请日：1991-04-29

Applicant: Shigeru Tokai

Inventor： Shigeru Tokai

IPC: B21D5/02 ,  B30B15/00 ,  B30B15/18 ,  B30B15/26 ,  G06F15/46

CPC classification number: B21D5/0272 ,  B21D5/02 ,  B30B15/007 ,  B30B15/26

Abstract: An apparatus for controlling a press brake is advantageously employable for a press brake for which a high operational efficiency and a high working accuracy are required. In response to inputting of working conditions inclusive of a target bending angle for a plate, the apparatus calculates displacement of a load active on a stationary table and a movable table, automatically calculates a quantity of crowning to be adjusted based on results derived from the foregoing calculation and then calculates the present position assumed by the movable in additional consideration of the quantity of crowning to be adjusted, based on results derived from the aforementioned calculations. The press brake accurately bends the plate based on the thus derived quantity of crowing to be adjusted and the present position assumed by the movable table without an occurrence of malfunction of so-called intermediate opening of the bent plate.

Abstract translation: PCT No.PCT / JP90 / 01105 Sec。 371日期：1991年4月29日 102（e）日期1991年4月29日PCT提交1990年8月30日PCT公布。 公开号WO91 / 03333 1991年3月21日。用于控制压制机的设备有利地用于需要高操作效率和高加工精度的压制机。 响应于输入包括板的目标弯曲角度的工作条件，该装置计算在静止台和可移动台上的活动载荷的位移，根据从上述得到的结果自动计算要调整的隆起量 计算，然后根据上述计算得出的结果，计算可移动量假定的当前位置，另外考虑到要调整的隆起量。 按压制动器基于由此导致的待调节的挤压量和由可移动台假设的当前位置而精确地弯曲板，而不会发生所谓的弯曲板的所谓的中间开口的故障。

公开(公告)号：US5176017A

公开(公告)日：1993-01-05

申请号：US543836

申请日：1990-09-14

Applicant: Shigeru Tokai

Inventor： Shigeru Tokai

IPC: B21D5/02

CPC classification number: B21D5/0209 ,  B21D5/02

Abstract: This invention relates to a tool position controller of a bending machine which can control a bending angle at an arbitrary portion during a bending work. The upper part of this controller is divided into two plates (5a,5a) by groove in a longitudinal direction. The controller includes a die (5) which has a reversed plate support (9) fitted inside a groove (5b) defined between these two plates, die push-up means (10, 11, 12) disposed at at least one position in the longitudinal direction of the die below the die, and feed quantity control means (13, 14, 15) for controlling the feed quantity of the die push-up means on the basis of a machining condition that has been in advance inputted. A work (40) is held under pressure between a punch (8) fitted to the tip of a ram (7) moved vertically by a pressure holding cylinder (6) and the reversed plate support (9) described above and is subjected to the bending work when the die is pushed up through the push-up means.

公开(公告)号：US5813263A

公开(公告)日：1998-09-29

申请号：US917746

申请日：1997-08-27

Applicant: Shigeru Tokai

Inventor： Shigeru Tokai

IPC: B21D5/02 ,  B30B15/14 ,  B21D5/01

CPC classification number: B21D5/006 ,  B21D5/02

Abstract: During the process of bending a workpiece, actual load exerted on the workpiece and displacement are sampled and the bending stress to displacement relationship is obtained from the sampling data and data on the actual thickness of the workpiece. From the bending stress to displacement relationship, a material characteristic value (e.g., yield stress) which indicates the condition of the material of the workpiece is obtained. Then, a bending angle correction amount is obtained from the material characteristic value, using a data table concerning the material characteristic value to bending angle relationship. From the bending angle correction amount thus obtained, a correction depth amount is obtained. The correction depth amount is added to a preset reference depth amount to obtain a final depth amount according to which bending is performed.

Abstract translation: 在工件弯曲过程中，对工件施加的实际载荷和位移进行采样，并从采样数据和工件实际厚度数据中获得弯曲应力与位移关系。 从弯曲应力到位移关系，获得表示工件材料的状态的材料特性值（例如屈服应力）。 然后，使用关于材料特性值与弯曲角度关系的数据表从材料特性值获得弯曲角度校正量。 根据这样获得的弯曲角度校正量，获得校正深度量。 将校正深度量加到预设的参考深度量上，以获得执行弯曲的最终深度量。

公开(公告)号：US5285668A

公开(公告)日：1994-02-15

申请号：US917003

申请日：1992-08-11

Applicant: Shigeru Tokai

Inventor： Shigeru Tokai

IPC: B21D5/02 ,  B21D11/22

CPC classification number: B21D5/0209 ,  B21D5/006

Abstract: It is an object to provide a bending angle detecting system for a press brake which can perform high precision bending process without employing a special die, The bending angle detecting system includes a sensor (20) provided on a back stop (8) for determining a bending position of a workpiece (7) to be subject to the bending process, and means for controlling a lower limit position of a punch (6) based on an angle signal detected by the sensor (20).

Abstract translation: 本发明的目的是提供一种能够在不使用特殊模具的情况下进行高精度弯曲加工的压弯机的弯曲角度检测系统。该弯曲角度检测系统包括设置在后挡块（8）上的传感器（20），用于确定 基于由传感器（20）检测的角度信号来控制冲头（6）的下限位置的装置。