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1. 发明授权

US07040129B2 Sheet working method, sheet working system, and various devices related to such system 失效
公开(公告)号：US07040129B2
公开(公告)日：2006-05-09
申请号：US10169743
申请日：2001-01-16
申请人： Junichi Koyama , Hitoshi Omata , Osamu Hayama , Kazunari Imai , Tokuro Takehara , Tetsuya Anzai
发明人： Junichi Koyama , Hitoshi Omata , Osamu Hayama , Kazunari Imai , Tokuro Takehara , Tetsuya Anzai
IPC分类号： G06F15/46 , B21D28/00 , B30B15/00 , G01B21/08 , B21C51/00
CPC分类号： B21D5/02 , B21D28/12 , B21D28/24 , Y10S72/702
摘要： An actual plate thickness and actual material constants are measured during punching before bending. The measured information is reflected on the bending, so that the bending is performed efficiently and accurately. Punching is carried out for each blank developed based on a nominal plate thickness and nominal material constants in blanking before the bending of a work W. Then, an actual plate thickness distribution and an actual material constant distribution of the work W are calculated based on various data containing a ram stroke and a pressure detected in the punching.

2. 发明授权

US06941784B2 Bending method and device therefor 失效
标题翻译：弯曲方法及其装置
公开(公告)号：US06941784B2
公开(公告)日：2005-09-13
申请号：US10169744
申请日：2001-01-16
申请人： Junichi Koyama , Osamu Hayama , Hitoshi Omata , Kazunari Imai
发明人： Junichi Koyama , Osamu Hayama , Hitoshi Omata , Kazunari Imai
IPC分类号： B21D5/02 , B21C51/00
CPC分类号： B21D5/02 , Y10S72/702
摘要： A bending method includes determining a provisional bending stroke value that resulted in a predetermined angle during test bending. The bending method also includes calculating a stroke value correction amount for correcting the provisional bending stroke value, based on the number of times a test piece was contacted to obtain the predetermined angle during test bending. The stroke value correction amount is added to the provisional stroke value to obtain a corrected stroke value, so as to obtain the predetermined angle during operational bending using the corrected stroke value.
摘要翻译：弯曲方法包括确定在测试弯曲期间导致预定角度的临时弯曲行程值。弯曲方法还包括基于在试验弯曲期间接触试验片获得预定角度的次数来计算用于校正临时弯曲行程值的行程值校正量。行程值校正量被添加到临时行程值以获得校正的行程值，以便使用修正行程值在操作弯曲期间获得预定角度。

3. 发明授权

US06796155B2 Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device 有权
标题翻译：折弯机的板厚检测方法及其装置，参考刀片间距离检测方法及其装置以及弯曲方法和弯曲装置
公开(公告)号：US06796155B2
公开(公告)日：2004-09-28
申请号：US10169742
申请日：2002-07-17
申请人： Junichi Koyama , Kazunari Imai , Hitoshi Omata , Osamu Hayama , Hidekatsu Ikeda
发明人： Junichi Koyama , Kazunari Imai , Hitoshi Omata , Osamu Hayama , Hidekatsu Ikeda
IPC分类号： B21C5100
CPC分类号： B21D5/02
摘要： A plate thickness detector for a bending machine causes a punch to make a relative stroke and bend a workpiece mounted on an upper surface of a die cooperatively by the punch and the die. A displacement gauge is provided in the die, is always urged upward from a V-groove of the die, and measures a distance from the upper surface of the die to a lower surface of the workpiece. A ram position detector detects a relative stroke quantity of the punch to the die. The punch is caused to bend the workpiece from a position away from the die by a reference inter-blade distance. A plate thickness arithmetic operation section inputs the relative stroke quantity of the punch at a point at which descent of the workpiece is detected by the displacement gauge or a predetermined point after the point, inputs the displacement quantity of the displacement gauge at this time using ram position detector, and detects the plate thickness of the workpiece by subtracting the detected relative stroke quantity from the reference inter-blade distance and adding the displacement quantity detected by the displacement gauge to the subtraction result.
摘要翻译：用于弯曲机的板厚检测器使得冲头进行相对行程并且通过冲头和模具协同地弯曲安装在模具的上表面上的工件。在模具中设置位移计，始终从模具的V形槽向上推压，并且测量从模具的上表面到工件的下表面的距离。冲头位置检测器检测冲头到模具的相对行程量。通过参考叶片间距离使冲头从远离模具的位置弯曲工件。板厚算术运算部，通过位移计或点后的预定点输入检测出工件下降点的冲头的相对行程量，此时使用压头输入位移计的位移量位置检测器，并且通过从参考叶片间距离减去检测到的相对行程量并将由位移计检测到的位移量与减法结果相加来检测工件的板厚度。

4. 发明授权

US06832526B2 Bending method and single elongation value specifying device of bending apparatus 有权
标题翻译：弯曲装置的弯曲方法和单伸长值指定装置
公开(公告)号：US06832526B2
公开(公告)日：2004-12-21
申请号：US10311325
申请日：2002-12-30
申请人： Junichi Koyama , Kazunari Imai , Osamu Hayama , Hitoshi Omata
发明人： Junichi Koyama , Kazunari Imai , Osamu Hayama , Hitoshi Omata
IPC分类号： G01N320
CPC分类号： B21D5/02 , B21D5/01
摘要： A bending apparatus for bending a workpiece W according to cooperation of a punch P and a die D previously carries out various step bending or makes simulation of step bending, and calculates an approximation formula based on a correlation between a ratio % of a one-sided elongation value &agr; to a plate thickness t and a step bending angle &thgr; based on a relationship among the plate thickness t, the step bending angle &thgr; and the one-sided elongation value &agr; of the workpiece W so as to store the formula as a database. The more accurate one-sided elongation value &agr; of the step bending is calculated by small parameters including only two data including the plate thickness t and the step bending angle &thgr; previously input at the time of actual bending based on the approximation formula in the data base so that the bending is carried out easily.
摘要翻译：根据冲头P和模具D的协调来弯曲工件W的弯曲装置预先执行各种步骤弯曲或使步进弯曲的模拟，并且基于单侧的比率％之间的相关性来计算近似公式基于板厚度t，阶梯弯曲角度θ和工件W的单面伸长值α之间的关系的板厚度t的延伸值α和阶梯弯曲角度θ，以便将公式存储为数据库。基于数据库中的近似公式，通过小参数（包括仅实际弯曲时预先输入的板厚t和阶梯弯曲角θ）的两个数据计算出步进弯曲的更准确的单侧伸长值α 使得弯曲容易进行。

5. 发明授权

US07007530B2 Bending method and bending device 失效
标题翻译：弯曲方法和弯曲装置
公开(公告)号：US07007530B2
公开(公告)日：2006-03-07
申请号：US10169747
申请日：2001-01-17
申请人： Junichi Koyama , Kazunari Imai , Hitoshi Omata , Osamu Hayama , Hidekatsu Ikeda
发明人： Junichi Koyama , Kazunari Imai , Hitoshi Omata , Osamu Hayama , Hidekatsu Ikeda
IPC分类号： B21D5/02
CPC分类号： B21D5/02 , Y10S72/702
摘要： In bending a workpiece, a position of the workpiece relatively pressed down by a punch is directly detected by a plurality of position detectors provided in a V-groove of a die, and a bending speed calculation section obtains a bending speed from a change in this position. If bending speeds at position of the respective position detectors differ, a uniform speed arithmetic operation section calculates a bending speed to make the bending speeds at the positions of all of the position detectors, and a driving shaft instruction section controls driving shafts to bend the workpiece at the uniform bending speed.
摘要翻译：在弯曲工件时，通过设置在模具的V形槽中的多个位置检测器直接检测由冲头相对压下的工件的位置，并且弯曲速度计算部分从该变形中获得弯曲速度位置。如果各位置检测器的位置的弯曲速度不同，则统一的速度算术运算部分计算弯曲速度，使得弯曲速度在所有位置检测器的位置处，并且驱动轴指令部分控制驱动轴弯曲工件以均匀的弯曲速度。

6. 发明授权

US09610624B2 Method for bending metal sheet and device for regulating residual stress 有权
公开(公告)号：US09610624B2
公开(公告)日：2017-04-04
申请号：US13978823
申请日：2012-01-13
申请人： Yingjun Jin , Takahiro Shibata , Junichi Koyama , Hitoshi Omata
发明人： Yingjun Jin , Takahiro Shibata , Junichi Koyama , Hitoshi Omata
IPC分类号： B21D5/00 , B21D5/02
CPC分类号： B21D5/004 , B21D5/008 , B21D5/02
摘要： A device for regulating a residual stress is comprised of: input means; a residual stress database; a process condition database; first searching means for searching a residual stress (σ0) from the residual stress database; a calculator for calculating a first bending moment (Mrs) in a ridge line originated from the residual stress, and a second bending moment (Mz) in the ridge line originated from bending to obtain a total bending moment (Mrs−Mz) and calculating a camber curvature (ρz) of the workpiece originated from the total bending moment (Mrs−Mz); comparing a difference (|ρz−ρz0|) between the camber curvature (ρz) and a target value (ρz0) with a tolerable value (ρ); second searching means for searching a process condition satisfying a tolerable condition (|ρz−ρz0|≦ρ) from the process condition database when (|ρz−ρz0|>ρ); and regulating means for regulating a residual stress.

7. 发明申请

US20130283875A1 METHOD FOR BENDING METAL SHEET AND DEVICE FOR REGULATING RESIDUAL STRESS 有权
标题翻译：用于弯曲金属片的方法和用于调节残余应力的装置
公开(公告)号：US20130283875A1
公开(公告)日：2013-10-31
申请号：US13978823
申请日：2012-01-13
申请人： Yingjun Jin , Takahiro Shibata , Junichi Koyama , Hitoshi Omata
发明人： Yingjun Jin , Takahiro Shibata , Junichi Koyama , Hitoshi Omata
IPC分类号： B21D5/00
CPC分类号： B21D5/004 , B21D5/008 , B21D5/02
摘要： A device for regulating a residual stress is comprised of: input means; a residual stress database; a process condition database; first searching means for searching a residual stress (σ0) from the residual stress database; a calculator for calculating a first bending moment (Mrs) in a ridge line originated from the residual stress, and a second bending moment (Mz) in the ridge line originated from bending to obtain a total bending moment (Mrs−Mz) and calculating a camber curvature (ρz) of the workpiece originated from the total bending moment (Mrs−Mz); comparing a difference (|ρz−ρz0|) between the camber curvature (ρz) and a target value (ρz0) with a tolerable value (ρ); second searching means for searching a process condition satisfying a tolerable condition (|ρz−ρz0|≦ρ) from the process condition database when (|ρz−ρz0|>ρ); and regulating means for regulating a residual stress.
摘要翻译：用于调节残余应力的装置包括：输入装置; 残余应力数据库; 过程条件数据库; 用于从残余应力数据库中搜索残余应力（sigma0）的第一搜索装置; 用于计算源自残余应力的棱线中的第一弯矩（Mrs）的计算器和来自弯曲的脊线中的第二弯矩（Mz），以获得总弯矩（Mrs-Mz），并计算来自总弯矩（Mrs-Mz）的工件的弯度曲率（rhoz）; 将弯度曲率（rhoz）和目标值（rhoz0）之间的差（rhoz-rhoz0 |）与容许值（rho）进行比较; 第二搜索装置，用于当（| rhoz-rhoz0 |> rho）时，从处理条件数据库中搜索满足可容忍条件（| rhoz-rhoz0 | @ rho）的处理条件; 以及用于调节残余应力的调节装置。

8. 发明授权

US5410927A Low noise punch tool 失效
标题翻译：低噪声冲压工具
公开(公告)号：US5410927A
公开(公告)日：1995-05-02
申请号：US92468
申请日：1993-07-16
申请人： Hitoshi Omata , Oriya Fujita
发明人： Hitoshi Omata , Oriya Fujita
IPC分类号： B21D28/12 , B21D28/34 , B26F1/14
CPC分类号： B21D28/12 , B21D28/34 , Y10T83/2157 , Y10T83/9423
摘要： The low noise punch tool (17) of this invention includes an upper surface pad (51) formed of a low noise material and disposed on an upper surface of a punch head (37) to be struck by a striker (25) of a punch press. Further, an elastic member (55) formed of a low noise material is interposed between the punch head (37) and a punch guide (43), and a ring (53) formed of a low noise material is interposed between the punch body (39, 41) and the punch guide (43). The low noise punch tool (17) includes a lower surface pad (63) formed of a low noise material and attached to a lower surface of a stripper plate (45) provided at a lower end of the punch guide (43). The low noise material may be urethane. Yet further, the cutting edge (41a) provided at the lower end of the punch body (41) has preferably a shearing angle. This punch tool is advantageous in that the noises of the punch tool during punching is significantly reduced, and the structure thereof is simple.
摘要翻译：本发明的低噪声冲压工具（17）包括由低噪声材料形成的上表面垫（51），并设置在冲头（37）的上表面上，以由冲头的撞针（25）按。此外，由冲击头（37）和冲头引导件（43）之间插入由低噪声材料形成的弹性构件（55），并且由冲击体（43）形成的低噪声材料形成的环（53） 39,41）和冲头引导件（43）。低噪声冲压工具（17）包括由低噪声材料形成的下表面焊盘（63），并附接到设置在冲头引导件（43）下端的脱模板（45）的下表面。低噪声材料可以是聚氨酯。此外，设置在冲头主体（41）的下端的切削刃（41a）优选具有剪切角度。这种冲压工具的优点在于冲压工具在冲压过程中的噪声显着减小，其结构简单。

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