公开(公告)号：US20100000280A1

公开(公告)日：2010-01-07

申请号：US12399817

申请日：2009-03-06

Applicant: Leonard Frederick Reid ,  James Ross ,  Tim Johnson ,  Taeksun Nam ,  Doug Glenn ,  Matt Shultz

Inventor： Leonard Frederick Reid ,  James Ross ,  Tim Johnson ,  Taeksun Nam ,  Doug Glenn ,  Matt Shultz

IPC: B21D39/08

CPC classification number: B23P9/025 ,  B21D24/02 ,  B21D39/06 ,  B21J15/04

Abstract: A member has a wave inhibitor adapted to control the effects of a wave of longitudinally displaced material positioned ahead of an expansion mandrel used to expand the member. The wave inhibitor has a decreasing transverse cross-sectional area to diminish the effects attributable to the wave, such as workpiece distortions, material upset of the workpiece, lengthening of the member, and excessively high strains in the workpiece. The wave inhibitor can also induce radially compressive stresses in the workpiece and produce an interference fit.

Abstract translation: 一个构件具有适于控制位于用于膨胀构件的膨胀心轴前方的纵向置换材料的波的影响的波浪抑制器。 波形抑制剂具有减小的横截面积，以减少归因于波的影响，例如工件变形，工件的材料镦粗，构件的延长以及工件中的过大的应变。 波浪抑制剂还可以在工件中引起径向压缩应力并产生干涉配合。

公开(公告)号：US07619384B2

公开(公告)日：2009-11-17

申请号：US11438394

申请日：2006-05-23

Applicant: Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

Inventor： Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

IPC: G05B5/01

CPC classification number: G05B19/19 ,  B21D24/02 ,  G05B2219/41021 ,  G05B2219/41251 ,  G05B2219/42083 ,  G05B2219/45143 ,  G05B2219/49356

Abstract: A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed instruction of the servo motor, based on a force instruction value instructed by the force instructor and a force detection value detected by the force detector. The speed instruction generator generates the speed instruction by multiplying a force gain by a force difference determined from a difference between the force instruction value and the force detection value. The speed instruction generator changes the force gain, based on a spring constant corresponding value of the spring element determined from a force indicator that works between the slide and the die cushion.

Abstract translation: 用于冲模缓冲机构的控制器包括：弹簧元件，其在模具缓冲机构和滑块之间根据力而移位; 指导力量的强制教练; 检测力的力检测器; 以及速度指令发生器，其基于由力指示器指示的力指令值和由力检测器检测的力检测值，生成伺服电动机的速度指令。 速度指令发生器通过将力增益乘以由力指令值和力检测值之间的差确定的力差而产生速度指令。 速度指令发生器基于从在滑块和模具衬垫之间工作的力指示器确定的弹簧元件的弹簧常数对应值来改变力增益。

公开(公告)号：US07506530B2

公开(公告)日：2009-03-24

申请号：US11478633

申请日：2006-07-03

Applicant: Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

Inventor： Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

IPC: B21J9/18

CPC classification number: B21D24/02 ,  G05B19/416 ,  G05B2219/42087 ,  G05B2219/45137

Abstract: A device for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The device includes a section for commanding a force to be produced by the die cushion mechanism; a section for detecting a force produced by the die cushion mechanism and applied to the slide; a section for detecting a moving speed of the slide; and a section for executing a force control on the servo-motor. The force controlling section executes force controls in mutually different modes on the servo-motor, through mutually different control loops, one mode being provided for an initial stage defined from an instant when the die cushion mechanism starts producing the force to be applied to the slide until a predetermined subsequent instant, and another mode being provided for a succeeding stage defined after the predetermined subsequent instant, by using at least a slide-speed detected value detected by the slide-speed detecting section. The force controlling section includes a section for preparing a first speed-command value to be commanded to the servo-motor in the initial stage and a second speed-command value, different from the first speed-command value, to be commanded to the servo-motor in the succeeding stage.

Abstract translation: 一种用于控制模具缓冲机构的装置，其包括作为驱动源的伺服电动机，并且产生适于施加到冲压机中的滑块的力。 该装置包括用于指示由模具缓冲机构产生的力的部分; 用于检测由所述模具缓冲机构产生并施加到所述滑块的力的部分; 用于检测滑块的移动速度的部分; 以及用于在伺服电动机上执行力控制的部分。 力控制部通过相互不同的控制回路在伺服电动机上以相互不同的模式执行力控制，一个模式被提供用于从模具缓冲机构开始产生施加到滑块的力的时刻开始的初始阶段 直到预定的后续时刻，并且通过至少使用由滑动速度检测部检测到的滑动速度检测值，为在预定的后续时刻之后定义的后续阶段提供另一模式。 力控制部包括用于准备要在初始阶段对伺服电动机指令的第一速度指令值和与第一速度指令值不同的第二速度指令值的部分，以指令伺服 在接下来的阶段。

公开(公告)号：US20090025444A1

公开(公告)日：2009-01-29

申请号：US11908485

申请日：2006-03-13

Applicant: Yuichi Suzuki

Inventor： Yuichi Suzuki

IPC: G05B19/416 ,  B21D24/14

CPC classification number: B21D24/02

Abstract: Provided is a die cushion controller (40) that controls an ascending/descending speed of a die cushion pad (15) based on a preset pressure pattern (56) and positional pattern (54), in which a position/pressure control switching unit (51) constantly monitors and compares a for-pressure speed command signal υpc corresponding to a pressure deviation signal ep and a for-position speed command signal υhc corresponding to a position deviation signal eh, and selects smaller one of those speed command signals to be sent to a speed control unit (53). Since the for-pressure speed command signal υpc and the for-position speed command signal υhc are constantly monitored and either one of them is selected, change in pressure and change in position can be accurately recognized to allow switching between a pressure control and a position control quickly, stably, and reliably.

Abstract translation: 提供了一种模具缓冲控制器（40），其基于预设压力图案（56）和位置模式（54）来控制模具缓冲垫（15）的上升/下降速度，其中位置/压力控制切换单元 51）不断地监视和比较对应于压力偏差信号ep的压力速度指令信号upphon和对应于位置偏差信号eh的对位速度指令信号upsilonhc，并选择要发送的那些速度指令信号中较小的一个 到速度控制单元（53）。 由于恒压指令信号upsilonpc和就位速度指令信号upsilonhc被持续地监测，并且其中任何一个被选择，所以可以精确地识别压力的变化和位置变化，以允许在压力控制和位置之间切换 快速，稳定，可靠地控制。

公开(公告)号：US20080016929A1

公开(公告)日：2008-01-24

申请号：US11664328

申请日：2005-09-28

Applicant: Johann Runesson

Inventor： Johann Runesson

IPC: B21D22/10

CPC classification number: F16F1/445 ,  B21D24/02

Abstract: A striker plate for a sheet-metal forming tool designed to be arranged between a gas-filled spring having a striking surface on a piston rod stop and a surface situated on the sheet-metal forming tool and thereby to receive force from the gas-filled spring in sheet metal forming. The striker plate includes a spring part arranged between a striker part and a bottom part, and is designed to be arranged at one of the surfaces.

Abstract translation: 一种用于钣金成形工具的撞板，设计成设置在具有活塞杆止动件上的冲击表面的气体填充弹簧和位于钣金成形工具上的表面之间，从而接收来自气体填充 弹簧在钣金成型。 撞击板包括设置在撞击部和底部之间的弹簧部，并且被设计成布置在其中一个表面上。

公开(公告)号：US07293447B2

公开(公告)日：2007-11-13

申请号：US11282683

申请日：2005-11-21

Applicant: Yasusuke Iwashita ,  Tadashi Okita ,  Yukio Toyozawa ,  Naoto Sonoda

Inventor： Yasusuke Iwashita ,  Tadashi Okita ,  Yukio Toyozawa ,  Naoto Sonoda

IPC: B21J9/18

CPC classification number: G05B19/19 ,  B21D24/02 ,  G05B2219/41177 ,  G05B2219/42129

Abstract: A control device for a die cushion mechanism, for carrying out force control with high accuracy and at a high speed. The control device for controlling the force generated by the die cushion mechanism utilizes a press working cycle which is repeatedly carried out. A correcting part of the control device corrects each deviation in one working cycle based on a time-series of deviation data in the just before press working cycle. By repeating this operation, the deviation between the detected value and the commanded value may be converged toward zero. Therefore, the deviation may become smaller than that of the conventional feedback control, whereby it is possible to respond to a change in the commanded value in a short time.

Abstract translation: 一种用于模具缓冲机构的控制装置，用于以高精度和高速执行力控制。 用于控制由模具缓冲机构产生的力的控制装置利用重复执行的冲压工作循环。 控制装置的校正部分根据刚刚按压工作循环中的偏差数据的时间序列，校正一个工作循环中的每个偏差。 通过重复该操作，检测值与指令值之间的偏差可以趋向零。 因此，偏差可能变得比常规反馈控制的偏差小，从而可以在短时间内响应指令值的变化。

公开(公告)号：US20070204448A1

公开(公告)日：2007-09-06

申请号：US11232674

申请日：2005-09-22

Applicant: Jonathan Cotter ,  Michael Diebolt

Inventor： Jonathan Cotter ,  Michael Diebolt

IPC: B21D22/02

CPC classification number: B21D24/02 ,  Y10T29/51 ,  Y10T29/5176

Abstract: A reaction device for forming equipment includes a base, a reaction member movably spaced therefrom by guides, and a return gas spring carried by the base and operatively engaged to the reaction member for yieldably biasing the reaction member away from the base. The base has a return gas spring passage and guide shaft passages spaced apart therefrom. A return gas spring is received in the return gas spring passage of the base, and has a piston rod with an end arranged for contact with the reaction member. The guides include guide shafts arranged for engagement with the reaction member and disposed in guide bushings, which are received in the guide shaft passages of the base and preferably project below the base for use in locating the reaction device on the forming equipment.

Abstract translation: 一种用于成型设备的反应装置包括一个底座，一个通过引导件与其可移动地间隔开的反作用构件，以及一个由底座承载并与反作用构件可操作地接合的返回气弹簧，用于使反作用构件远离基座。 基座具有回气气体弹簧通道和与其间隔开的引导轴通道。 返回气体弹簧被容纳在基座的返回气体弹簧通道中，并且具有设置成与反作用构件接触的端部的活塞杆。 引导件包括布置成与反作用构件接合并设置在引导衬套中的引导轴，它们被容纳在基座的引导轴通道中，并且优选地在基座下方突出以用于将反作用装置定位在成形设备上。

公开(公告)号：US07197910B2

公开(公告)日：2007-04-03

申请号：US10801552

申请日：2004-03-17

Applicant: Shigeki Kodani

Inventor： Shigeki Kodani

IPC: B21J9/18

CPC classification number: B21D24/02

Abstract: In a die cushion apparatus, a pressurizing force acting on a die cushion pad is applied to a first piston of a hydraulic cylinder unit by the operation of a slide, the first piston slides inside a first cylinder and pressure oil in a first hydraulic chamber is pressurized. The first hydraulic chamber is linked to a second hydraulic chamber of a booster cylinder unit via a second check valve, so that the pressure oil of the first hydraulic chamber is pushed out into the second hydraulic chamber. When the pressure of the first hydraulic chamber is applied to a second piston, the second piston slides inside the second cylinder and gas of a gas pressure chamber is compressed, whereby a surge pressure is reduced.

Abstract translation: 在模具缓冲装置中，通过滑动件的作用将作用于模具缓冲垫的加压力施加到液压缸单元的第一活塞，第一活塞在第一气缸内滑动，第一液压室中的压力油为 加压。 第一液压室通过第二止回阀与增压缸单元的第二液压室连接，使得第一液压室的压力油被推出到第二液压室中。 当第一液压室的压力被施加到第二活塞上时，第二活塞在第二气缸内滑动，气体压力室的气体被压缩，从而降低喘振压力。

公开(公告)号：US07152451B1

公开(公告)日：2006-12-26

申请号：US11441970

申请日：2006-05-25

Applicant: Jonathan P. Cotter

Inventor： Jonathan P. Cotter

IPC: B21D45/00

CPC classification number: B21D24/02 ,  F16F9/0218

Abstract: A reaction device for forming equipment includes a housing having a mount adapted to be connected to a forming die and a casing carried by the mount. A lift rod is disposed at least partially on the housing for movement relative to the house between extended and retracted positions. The lift rod has a first end disposed in the housing, a second end and a passage extending through the lift rod between its ends. An adapter is connected to the lift rod within the passage and is adapted to be coupled to a lift bar of the forming equipment. A biasing member is disposed between the lift rod and the housing to yieldably bias the lift rod to its extended position.

Abstract translation: 一种用于成形设备的反应装置包括具有适于连接到成型模具的安装座和由该支架承载的壳体的壳体。 提升杆至少部分地设置在壳体上，用于在延伸位置和缩回位置之间相对于房屋移动。 提升杆具有设置在壳体中的第一端，第二端和在其端部之间延伸穿过提升杆的通道。 适配器连接到通道内的提升杆，并适于联接到成形设备的提升杆。 偏置构件设置在提升杆和壳体之间，以将提升杆可屈服地偏置到其伸出位置。

公开(公告)号：US20060267535A1

公开(公告)日：2006-11-30

申请号：US11438394

申请日：2006-05-23

Applicant: Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

Inventor： Yasusuke Iwashita ,  Tadashi Okita ,  Hiroyuki Kawamura ,  Satoshi Ikai

IPC: G05B5/01

CPC classification number: G05B19/19 ,  B21D24/02 ,  G05B2219/41021 ,  G05B2219/41251 ,  G05B2219/42083 ,  G05B2219/45143 ,  G05B2219/49356

Abstract: A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed instruction of the servo motor, based on a force instruction value instructed by the force instructor and a force detection value detected by the force detector. The speed instruction generator generates the speed instruction by multiplying a force gain by a force difference determined from a difference between the force instruction value and the force detection value. The speed instruction generator changes the force gain, based on a spring constant corresponding value of the spring element determined from a force indicator that works between the slide and the die cushion. With this arrangement, the die cushion mechanism can be controlled with high precision, even when a mechanical characteristic changes. A force indicator is a force instruction value or a force detection value. In place of the force indicator, a spring constant corresponding value can be determined according to displacement of the spring element or a position of the die cushion mechanism.

Abstract translation: 用于冲模缓冲机构的控制器包括：弹簧元件，其在模具缓冲机构和滑块之间根据力而移位; 指导力量的强制教练; 检测力的力检测器; 以及速度指令发生器，其基于由力指示器指示的力指令值和由力检测器检测的力检测值，生成伺服电动机的速度指令。 速度指令发生器通过将力增益乘以由力指令值和力检测值之间的差确定的力差而产生速度指令。 速度指令发生器基于从滑块和模具垫之间工作的力指示器确定的弹簧元件的弹簧常数对应值来改变力增益。 通过这种布置，即使机械特性变化，也能够高精度地控制模具缓冲机构。 力指示器是力指令值或力检测值。 代替力指示器，可以根据弹簧元件的位移或模具缓冲机构的位置来确定弹簧常数对应值。