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108 条记录 (耗时 0.011 秒)

    ACTIVE RECONFIGURABLE STRETCH FORMING
    101.
    发明公开
    ACTIVE RECONFIGURABLE STRETCH FORMING 有权
    主动可重构EXPANDED SHAPES

    公开(公告)号：EP1976651A1

    公开(公告)日：2008-10-08

    申请号：EP07700085.9

    申请日：2007-01-23

    申请人： Commonwealth Scientific and Industrial Research Organisation

    发明人： FORSYTH, Ross

    IPC分类号： B21D24/00 ,  B21D24/10 ,  B21D22/26 ,  B21D24/14

    CPC分类号： B21D37/10 ,  B21D11/085 ,  B21D25/00 ,  B21D25/02 ,  B21D31/04 ,  B21D37/02 ,  B21D37/04 ,  B21D53/00 ,  B21D53/883

    摘要： This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.

    PRESS FORMING DEVICE, PRESS FORMING METHOD, COMPUTER PROGRAM, AND RECORDING MEDIUM
    102.
    发明公开
    PRESS FORMING DEVICE, PRESS FORMING METHOD, COMPUTER PROGRAM, AND RECORDING MEDIUM 有权
    DRUCKFORMVORRICHTUNG，DRUCKFORMVERFAHREN，RECHNERPROGRAMM UND AUFZEICHNUNGSMEDIUM

    公开(公告)号：EP1688196A1

    公开(公告)日：2006-08-09

    申请号：EP04818248.9

    申请日：2004-11-10

    申请人： NIPPON STEEL CORPORATION ,  USINOR

    发明人： SUZUKI, Noriyuki, Nippon Steel Corporation ,  UENISHI, Akihiro, Nippon Steel Corporation ,  KURIYAMA, Yukihisa, Nippon Steel Corporation ,  NIWA, Toshiyuki, Nippon Steel Corporation ,  KUWAYAMA, Takuya, Nippon Steel Corporation ,  YAMAGATA, Mitsuharu, Nippon Steel Corporation

    IPC分类号： B21D24/10 ,  B21D22/00 ,  B21D22/20

    CPC分类号： B21D22/20 ,  B21D24/10 ,  G05B2219/49088 ,  G05B2219/49097

    摘要： A press-forming device includes: material characteristic input means inputting at least one of the material characteristics out of sheet thickness, yield strength', 0.2% proof stress, tensile strength, elongation, n value, r value, stress-strain relation equation, hardness, temperature, surface roughness, friction coefficient, or lubricant film thickness, of the material; state variable detector measuring at least one state variable out of punch reaction, metal mold temperature, metal mold distortion amount, work piece deformation amount, and work piece temperature during forming; processing condition computing means computing at least one processing condition out of forming speed, blank holding force, or metal mold temperature from the material characteristic inputted by the material characteristic inputting means and the state variable during forming measured by the state variable detector; and processing condition controller controlling at least one of the punch or die movement speed, temperature, or blank holding force according to the processing condition computed by the processing condition computing means.

    摘要翻译： 压制成形装置包括：材料特性输入装置，其输入板材厚度，屈服强度，0.2％屈服应力，拉伸强度，伸长率，n值，r值，应力 - 应变关系方程中的至少一种材料特性， 硬度，温度，表面粗糙度，摩擦系数或润滑剂膜厚度; 状态变量检测器测量冲击反应中的至少一个状态变量，金属模具温度，金属模具变形量，工件变形量和成形时的工件温度; 处理条件计算装置从由材料特性输入装置输入的材料特性和由状态变量检测器测量的成形期间的状态变量计算出成形速度，坯料夹持力或金属模具温度以外的至少一种处理条件; 以及处理条件控制器，根据由处理条件计算装置计算的处理条件来控制冲头或模具移动速度，温度或坯料夹持力中的至少一个。

    Apparatus for measuring blank holding force acting on pressure ring of a press
    104.
    发明公开
    Apparatus for measuring blank holding force acting on pressure ring of a press 无效
    装置，用于测量施加在压力环的压保持力

    公开(公告)号：EP0699899A3

    公开(公告)日：1998-07-22

    申请号：EP95202921

    申请日：1993-04-06

    申请人： TOYOTA MOTOR CO LTD

    发明人： KIRII KAZUNARI ,  SHINABE MASAHIRO ,  ONO TSUTOMU ,  WATANABE MASUO ,  KOSHIDA HIDEO

    IPC分类号： B30B15/02 ,  B21D24/02 ,  B21D24/04 ,  B21D24/08 ,  B21D24/10 ,  B21D24/16 ,  B30B15/28 ,  G01L5/00

    CPC分类号： B21D24/14 ,  B21D24/02 ,  B21D24/08 ,  G01L5/0076

    摘要： An apparatus used for measuring a holding force expected to be applied to a pressure member (30) of a press (10, 150), before the lower and upper dies (12, 18) and the pressure member are installed on the press. The apparatus includes a measuring member (106, 262, 322, 344) to be placed on cushion pins (24) of the press associated with a fluid-actuated cylinder (42) via a cushion pad (28). A sensing element (112, 264, 326, 348) is disposed on the measuring member or a main slide (20) carrying the upper die, such that the holding force produced by force applying means (51) which includes the cylinder acts on the sensing element, when the measuring member is lowered with the sensing element by the main slide in its downward movement towards a bolster (14, 154) on which the lower due is fixed. A load detecting device (116, 266, 332, 360, 364) is disposed on the sensing element for detecting the holding force acting on the latter. The apparatus also includes a device (120, 122) for recording the holding force as detected by the load detecting device.

    Mechanische oder hydraulische Presse mit Zieheinrichtung oder Ziehstufe einer Stufenpresse
    108.
    发明公开
    Mechanische oder hydraulische Presse mit Zieheinrichtung oder Ziehstufe einer Stufenpresse 失效
    具有牵引装置的机械或液压机或转印机的拉伸步骤

    公开(公告)号：EP0417752A3

    公开(公告)日：1991-06-05

    申请号：EP90117535.6

    申请日：1990-09-12

    申请人： Maschinenfabrik Müller-Weingarten AG

    发明人： Harsch, Erich ,  Engelhardt, Hans

    IPC分类号： B21D24/10

    CPC分类号： B21D24/10 ,  B21D24/14

    摘要： Es wird eine mechanische oder hydraulische Presse mit Zieheinrichtung vorgeschlagen, bei welcher ein Pressenstößel (8) über mehrere Zugstangen (12) mit einem unterhalb einer Druckwange (10) angeordneten Blechhalterrahmen (13) kraftschlüssig verbunden sind. Auf dem Blechhalterrahmen (13) sind zur Abstützung der vier Eckpunkte der Druckwange (10) vier Kolben-­Zylindereinheiten (14 bis 16) vorgesehen, die während des Ziehvorgangs ein hydraulisches Verspannen des Blechhalters (6) vornehmen.

    摘要翻译： 建议用绘图装置的机械或液压机，其中，压力机压头（8）在（12）多个拉杆布置成与脸颊（10）片材保持器框架（13）下方的压力都是非配合地连接。 在片材保持器框架（13），用于支撑所述压力片（10）的四个角点具有四个活塞缸单元被提供（14至16），其在拉制过程使金属片保持器（6）的液压夹紧。