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公开(公告)号：US20190232353A1
公开(公告)日：2019-08-01
申请号：US16250334
申请日：2019-01-17
Applicant: AIDA ENGINEERING, LTD.
Inventor： Yasuyuki KOHNO
Abstract: A press system providing excellent energy efficiency for a whole press system and capable of achieving low prices is provided. A die cushion apparatus constituting a press system supports a cushion pad, includes a hydraulic cylinder which generates a die cushion load on the cushion pad when a slide of a press machine descends, the press machine includes a hydraulic cylinder which generates part of a press load on the slide when the slide descends. The pressure generation chamber of the hydraulic cylinder for generating a die cushion load and the pressure generation chamber of the hydraulic cylinder for generating part of the press load can communicate with each other via pipes and a first logic valve for a period during which the die cushion load acts.
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公开(公告)号：US10010983B2
公开(公告)日：2018-07-03
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
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.
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公开(公告)号：US20180117656A1
公开(公告)日：2018-05-03
申请号：US15798350
申请日：2017-10-30
Applicant: AIDA ENGINEERING, LTD.
Inventor： Yasuyuki KOHNO
Abstract: A die cushion device of a press machine includes a hydraulic cylinder that supports a cushion pad and generates die cushion force when a slide of the press machine descends, an orifice and a hydraulic pump/motor that are connected to each other in in parallel between a lower chamber of the hydraulic cylinder and a tank, a servo motor connected to a rotating shaft of the hydraulic pump/motor, and a control unit that controls torque of the servo motor to control the die cushion force, wherein a rotation direction of the servo motor switches from a first rotation direction in which the hydraulic pump/motor serves as a hydraulic motor to a second rotation direction in which the hydraulic pump/motor serves as a hydraulic pump, during generation of the die cushion force.
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公开(公告)号：US20180104736A1
公开(公告)日：2018-04-19
申请号：US15783078
申请日：2017-10-13
Applicant: Barnes Group Inc.
Inventor： Ethan McLaughlin , Richard Miller , Steven Reilly , Michael Culbertson , Russ Sasak
Abstract: A controllable force cushion device that can be programmed to provide a variable and/or pulsating force that can be used in any application where force control is desirable. The frequency of the pulsation can be adjusted to suit different applications and/or circumstances (e.g., forming of sheet metals in die applications, etc.). The cushion can comprise one or more manifolds containing hydraulic cylinders that can be compressed during operation pushing fluid through a proportional relief valve that can be controlled by a motion control device, thereby creating a desired force. Material (e.g., sheet metal, etc.) flow can be controlled by using a gap control method. In use, the variable pulsating, gap control, auto-learning press cushion device of the present invention can optionally be mounted to the underside of a press bolster and can be used in conjunction with a stamping press.
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公开(公告)号：US20180104732A1
公开(公告)日：2018-04-19
申请号：US15295337
申请日：2016-10-17
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Yinong SHEN , Jing WU
Abstract: A single action draw press and a draw die set for the single action draw are disclosed. The single action draw press and die include a bolster and a stationary punch. A cushion is assembled to the bolster to support a binder ring that is adapted to be engaged by a die attached to a press ram. The die is reciprocated by the press ram relative to the bolster while a mechanical lock engages the die and the binder ring. The die contacts the binder ring and a mechanical lock secures the die and binder ring together while the die draws a panel over the stationary punch.
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Patent Agency Ranking
公开(公告)号：US09782816B2
公开(公告)日：2017-10-10
申请号：US14704469
申请日：2015-05-05
Applicant: AIDA ENGINEERING, LTD.
Inventor： Yasuyuki Kohno , Tadahiro Kondo
CPC classification number: B21D24/14 , B21D24/02 , F15B1/024 , F15B21/005 , F15B2211/212 , F15B2211/88
Abstract: There is provided a die cushion device that includes a cushion pad, a hydraulic cylinder configured to lift the cushion pad, and a hydraulic closed circuit connected to a die cushion pressure creation chamber of the hydraulic cylinder. The hydraulic closed circuit includes a pilot drive type logic valve that is operable as a main relief valve at the time of the die cushion operation, and a pilot relief valve configured to create pilot pressure for controlling the logic valve. Hydraulic oil is filled in the hydraulic closed circuit, in a pressurized manner, and the hydraulic oil in the hydraulic closed circuit is pressurized by only die cushion force applied from the cushion pad through the hydraulic cylinder, in one cycle period of the cushion pad.
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公开(公告)号：US20170266709A1
公开(公告)日：2017-09-21
申请号：US15505876
申请日：2015-04-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Atsushi FUJIHIRA , Takumi MATSUZAWA
Abstract: Provided is a cushion pin which applies sufficient supporting force to a blank holder of a press molding apparatus even if the number of cushion pins and an arrangement region are restricted. A cushion pin (1A) has a cylindrical main body section including a plurality of cylindrical members (2) and annular members (3). The cylindrical members (2) are arranged in series in an axial direction, and the annular members (3) are disposed between the adjacent cylindrical members (2). A rod member (4) and a coil spring (5) are disposed in each the spring chambers of the main body section. The rod member (4) includes a rod-shaped part (4b) and a flange part (4a). The rod-shaped part (4b) has a diameter allowing the rod-shaped part (4b) to slidably penetrate through an opening (3a) of the annular member (3). The coil spring (5) biases the flange part (4a).
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公开(公告)号：US09669446B2
公开(公告)日：2017-06-06
申请号：US14304312
申请日：2014-06-13
Applicant: AIDA ENGINEERING, LTD.
Inventor： Yasuyuki Kohno , Kazufumi Tsuchida , Junji Makabe
Abstract: The die cushion force setting apparatus according to an aspect of the present invention allows die cushion forces (component forces) acting on plural driving shafts to be set easily, makes it easy to apply strong or weak die cushion forces to a complex-shaped drawn part in a plane of a cushion pad, and provides a smooth die cushion force distribution. An operator manually enters a total die cushion force, axial component force of a left front hydraulic cylinder, and center-of-force position by operating an input device. Based on the information entered via the input device, the numerical computing device B1 calculates axial component forces of three hydraulic cylinders through numerical computations. The one axial component force thus entered and three axial component forces thus computed numerically are set as the axial component forces of four hydraulic cylinders.
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9.发明申请DIE CUSHION-CUM-SLIDE CUSHION DEVICE AND METHOD OF CONTROLLING THE SAME 审中-公开DIE CUSHION-CIDE-CIDE-LIDE CUSHION DEVICE及其控制方法公开(公告)号：US20170008061A1
公开(公告)日：2017-01-12
申请号：US15202913
申请日：2016-07-06
Applicant: AIDA ENGINEERING, LTD.
Inventor： Yasuyuki KOHNO
CPC classification number: B21D24/02 , B21D24/12 , B21D24/14 , B30B15/061
Abstract: A die cushion-cum-slide cushion device selectively opens and closes a flow channel between a hydraulic pump/motor driven by a servo motor, and hydraulic cylinders that generate slide cushion force, or a flow channel between the hydraulic pump/motor, and hydraulic cylinders that generate die cushion force, by switching a selector valve. Before applying the slide cushion force is started, the servo motor is controlled to allow the hydraulic cylinders to generate required slide cushion force through a check valve. While the slide cushion force is applied, hydraulic circuits, each of which includes a logic valve, control pressure of the hydraulic cylinders, and hydraulic circuits, each of which includes the servo motor, control die cushion pressure of the hydraulic cylinders.
Abstract translation: 模具缓冲暨滑动缓冲装置选择性地打开和关闭由伺服电动机驱动的液压泵/电动机之间的流动通道和产生滑动缓冲力的液压缸或液压泵/电动机之间的流动通道和液压 通过切换选择阀来产生模具缓冲力的气缸。 在施加滑动缓冲力之前，伺服电机被控制以允许液压缸通过止回阀产生所需的滑动缓冲力。 在施加滑动缓冲力的同时，每个包括逻辑阀的液压回路，液压缸的控制压力和液压回路，每个液压回路包括伺服电机，液压缸的控制模具缓冲压力。
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公开(公告)号：US20160008864A1
公开(公告)日：2016-01-14
申请号：US14851423
申请日：2015-09-11
Applicant: KEYLEX CORPORATION
Inventor： Tsuyoshi Itaoka , Shigeki Teshima
IPC: B21D22/02
CPC classification number: B21D22/02 , B21D22/21 , B21D24/02 , B21D24/06 , B21D24/12 , B21D24/14 , B21D24/16 , B21D28/24 , B21D35/001 , B21D45/02 , B30B15/0076
Abstract: Provided is a press apparatus which ensures high production efficiency and has less chances of breakdown. Specifically, the press apparatus has a base placed on a floor, and a platform arranged over the base to face the base and move up and down. A lower die, on which a steel plate is to be placed, is fixed to the base. An upper die is fixed to the platform to press the plate against the lower die and turn it into an initially formed product through a downward movement of the platform, and to pressure-hold the initially formed product with the lower die. A machining die is supported on the platform to move up and down to machine the initially formed product and form a final product by moving down while pressure-holding the initially formed product.
Abstract translation: 提供一种确保高生产效率并且具有较少击穿机会的压制装置。 具体地说，按压装置具有放置在地板上的底座，以及布置在基座上以面对基座并且上下移动的平台。 将要放置钢板的下模固定在基座上。 上模固定在平台上，以将板压靠在下模上，并通过平台的向下运动将其转换成初始形成的产品，并将初始形成的产品与下模压力保持。 在平台上支撑加工模具以上下移动以对最初形成的产品加工，并在压紧初始成型的产品的同时向下移动形成最终产品。
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