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7 条记录 (耗时 0.041 秒)

    Method for pinch free tube forming
    5.
    发明授权
    Method for pinch free tube forming 失效
    无夹管成型方法

    公开(公告)号：US5339667A

    公开(公告)日：1994-08-23

    申请号：US48016

    申请日：1993-04-19

    申请人： Sanjay M. Shah ,  Michael H. Lovell

    发明人： Sanjay M. Shah ,  Michael H. Lovell

    IPC分类号： B21D26/033 ,  B21D26/02

    CPC分类号： B21D26/033 ,  B60G2206/012 ,  Y10T29/49805

    摘要： A method of forming an elongated box shape tubular frame member from a round tube includes the steps of: providing a lower die member having a cavity submerged substantially below the top surface of the lower die and having a cavity width equal to the width of the desired box shape frame member and less than the diameter of the tube. The lower die has an entry opening which opens to the top surface of the die and is defined by angularly disposed funnel walls which converge to intersect with the cavity. The round tubular blank is placed onto the lower die so that the blank rests on the angularly disposed funnel walls above the cavity. The upper die is lowered onto the lower die and has a lid wall which forces the tubular blank downwardly into the cavity while the angularly disposed funnel walls guide the blank to collapse in a manner preventing pinching of the blank between the upper and lower dies. The application of internal hydraulic pressure then expands the collapsed tube outwardly to the shape defined by the cavity of the lower die and the lid wall of the upper die.

    摘要翻译： 从圆管形成细长箱形管状框架构件的方法包括以下步骤：提供下模具构件，该下模具构件具有浸没在下模顶表面下方的空腔宽度，其宽度等于所需的 盒形框架构件并小于管的直径。 下模具有通向模具的顶表面的进入开口，并且由角度设置的漏斗壁限定，其汇合成与空腔相交。 将圆形管状坯料放置在下模上，使得坯料搁置在空腔上方的倾斜设置的漏斗壁上。 上模被降下到下模上，并且具有盖壁，其将管状坯料向下压入空腔中，而角形设置的漏斗壁以防止坯料在上模和下模之间夹紧的方式引导坯件塌缩。 内部液压的应用然后将塌缩管向外扩展到由下模的空腔和上模的盖壁限定的形状。

    External seal device for tube hydroforming
    6.
    发明授权
    External seal device for tube hydroforming 失效
    管液压成型的外部密封装置

    公开(公告)号：US5321964A

    公开(公告)日：1994-06-21

    申请号：US71548

    申请日：1993-06-04

    申请人： Bruce S. Shimanovski ,  Michael H. Lovell ,  George T. Winterhalter, Sr. ,  Sanjay M. Shah

    发明人： Bruce S. Shimanovski ,  Michael H. Lovell ,  George T. Winterhalter, Sr. ,  Sanjay M. Shah

    IPC分类号： B21D26/045 ,  B21D39/20 ,  B21D26/02

    CPC分类号： B21D26/045 ,  Y10T29/49805

    摘要： A seal device for a hydroforming press includes a housing having a bore and a seal carrier slidable within the housing bore. The seal carrier has a bore which fits closely outside of the end of tube to be hydroformed. A V-shaped locator rigidly mounted relative to the housing aligns the end of the tube placed thereon with the carrier bore. A carrier actuator is operable to move the seal carrier between a retracted position away from the end of the tube to an extended position over the end of the tube. A resilient elastomeric annular seal carried by the seal carrier encircles the outer surface of the tube. A seal actuator carried on the seal carrier compresses the seal upon relative movement between the seal actuator and the seal carrier. A stop is engaged by the seal actuator as the seal carrier approaches the extended position so that subsequent further movement of the seal carrier compresses the seal against the tube. The locator and a tube backup fixed to an upper bed of the press encircle the tube when the press is closed, reacting against the tube when it is pressurized. A travel limit block provides a reaction member against which the locator reacts to prevent relative movement between the seal device and the press during forming.

    摘要翻译： 用于液压成型压力机的密封装置包括具有孔和可在壳体孔内滑动的密封载体的壳体。 密封载体具有孔，其紧密地配合在待液压成形的管的端部的外侧。 相对于壳体刚性地安装的V形定位器将放置在其上的管的端部与载体孔对准。 载体致动器可操作以将密封载体在远离管的端部的缩回位置之间移动到管的端部上方的延伸位置。 由密封载体承载的弹性弹性环形密封圈环绕管的外表面。 承载在密封载体上的密封件致动器在密封件致动器和密封件托架之间相对运动时压缩密封件。 当密封载体接近延伸位置时，密封件致动器接合止动件，使得密封载体的随后的进一步移动将密封件压靠在管上。 当压力机关闭时，定位器和固定到压力机上部的管支架围绕管，当其被加压时与管反应。 行程限位块提供了一个反作用构件，定位器反作用于反作用构件，以防止在成形期间密封装置和压力机之间的相对运动。

    Quick change bend tooling bolster
    7.
    发明授权
    Quick change bend tooling bolster 有权
    快换弯装置

    公开(公告)号：US07360385B1

    公开(公告)日：2008-04-22

    申请号：US11736169

    申请日：2007-04-17

    申请人： Douglas T. Wohlenhaus ,  Arturo M. Martinez ,  Michael H. Lovell ,  Mark A. Cline ,  David R. Friddell

    发明人： Douglas T. Wohlenhaus ,  Arturo M. Martinez ,  Michael H. Lovell ,  Mark A. Cline ,  David R. Friddell

    IPC分类号： B21D9/05

    CPC分类号： B21D7/024

    摘要： A tube bending assembly adapted for use with a rotary draw bender, and preferably including a bend die mounting unit for securing a plurality of stacked bend dies drivenly coupled to the bender, a bend die tower unit for structurally supporting the bend die mounting unit, a wiper die mounting unit for securing a wiper die adjacent a selected bend die, a clamp die mounting unit for positioning and securing a clamp die, a pressure die mounting unit for securing a pressure die adjacent the clamp die, a mandrel saddle unit for positioning and enabling the utilization of a mandrel assembly, a collet saddle unit for positioning and enabling the utilization of a collet, and a bolster unit that interconnects the units, so as to present an integrated assembly capable of concurrent disconnection from and connection to the bender, and thereby reducing the tool set change-over period.

    摘要翻译： 一种适于与旋转弯曲机一起使用的管弯曲组件，并且优选地包括用于固定被驱动地联接到弯曲机上的多个堆叠弯曲模具的弯曲模具安装单元，用于在结构上支撑弯曲模具安装单元的弯曲模具塔单元， 用于固定与所选择的弯曲模具相邻的刮水器模具的刮水器模具安装单元，用于定位和固定夹具模具的夹具模具安装单元，用于固定邻近夹紧模具的压力模具的压力模具安装单元，用于定位和 使得能够利用心轴组件，用于定位并使得能够利用夹头的夹头鞍形单元以及互连单元的摇枕单元，以便呈现能够同时断开连接并连接到弯曲机的集成组件，以及 从而减少了刀具套转换周期。