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    Truck rim forming apparatus
    6.
    发明授权
    Truck rim forming apparatus 失效
    卡车RIM成型设备

    公开(公告)号：US3862563A

    公开(公告)日：1975-01-28

    申请号：US41472173

    申请日：1973-11-12

    Applicant: GROTNES MACHINE WORKS INC

    Inventor： FENCL VERNON ,  LUEDI HANS R ,  STETTLER CHRISTIAN H ,  ROZE ALBERTS

    IPC: B21D53/30 ,  B21D53/26

    CPC classification number: B21D53/30 ,  Y10T29/49529

    Abstract: A combination press apparatus for preparing partially formed cylindrical metal shells for welding of their end gaps wherein a workpiece operating station within a frame has a horn carrying first and second dies, a first ram having a die for forming is disposed adjacent to the first horn die and a power actuator moves the first ram toward the horn to form the shell ends adjacent the gap. A second ram disposed on the opposite side of the horn carries a closure die and a power actuator moves the second ram toward the horn to compress the opposite side of the shell against the second die to close the end gap. The first ram die may carry a cutter which acts in association with a cutting slot on the first die to trim the ends of the shell adjacent the gap. Lifting apparatus, including a self-centering arrangement, carries the shell and moves it into and out of the operating station surrounding the horn. The self-centering arrangement allows the shell to be moved eccentrically with respect to the horn for action by one of the rams or the other and the shell returns to the concentric position when the respective ram is retracted.

    Abstract translation: 一种用于制备用于焊接其端部间隙的部分形成的圆柱形金属壳的组合压制装置，其中框架内的工件操作台具有承载第一和第二模具的喇叭，具有用于成形的模具的第一冲头设置成与第一喇叭模具 并且动力致动器将第一压头移动到喇叭以形成邻近间隙的壳体端部。 设置在喇叭的相对侧的第二冲头承载封闭模具，动力致动器将第二压头移动到喇叭，以将壳体的相对侧压靠在第二模具上，以封闭端部间隙。 第一柱塞模具可以携带切割器，该切割器与第一模具上的切割槽相关联，以修剪邻近间隙的壳体的端部。 提升装置，包括自定中心的装置，运送壳体并将其移入和移出喇叭周围的操作台。 自对中布置允许壳体相对于喇叭偏心移动，以通过其中一个柱塞或另一个进行动作，并且当相应的压头缩回时，壳体返回到同心位置。

    Method and apparatus for forming cylinders from strip material
    7.
    发明授权
    Method and apparatus for forming cylinders from strip material 失效
    用于形成来自条纹材料的圆筒的方法和装置

    公开(公告)号：US3662940A

    公开(公告)日：1972-05-16

    申请号：US3662940D

    申请日：1969-05-13

    Applicant: GROTNES MACHINE WORKS INC

    Inventor： STETTLER CHRISTIAN H

    IPC: B21C37/08 ,  B21D5/14 ,  B21D51/00 ,  B21D53/16 ,  B21D53/30 ,  B23K1/20

    CPC classification number: B21D53/30 ,  B21D5/143 ,  B21D51/00

    Abstract: A cylinder-forming method and apparatus is disclosed in which a pre-cut blank of strip material is positioned against a locating abutment and clamped within a rotatable mandrel. As the mandrel is rotated, first and second guide means form the blank to the periphery of the mandrel with flattened end portions being formed on the blank adjacent an end gap. Gripping means seize the blank before unclamping the mandrel, and thereafter transfer the formed blank with its gap in a known predetermined position into the jaws of an electric flash welder wherein the ends of the blank are joined by welding.

    Abstract translation: 公开了一种圆筒形成方法和装置，其中带状材料的预切割坯料抵靠定位邻接件定位并夹紧在可旋转心轴内。 当心轴旋转时，第一和第二引导装置将毛坯形成到心轴的周边，其中平坦的端部形成在邻近端部间隙的坯件上。 夹紧装置在松开心轴之前抓住坯件，然后将已形成的坯料以已知的预定位置的间隙转移到电动闪光焊接机的夹爪中，其中坯料的端部通过焊接连接。

    Shrink-forming apparatus with integral tooling
    8.
    发明授权
    Shrink-forming apparatus with integral tooling 失效
    整体成型装置

    公开(公告)号：US3564898A

    公开(公告)日：1971-02-23

    申请号：US3564898D

    申请日：1968-06-14

    Applicant: GROTNES MACHINE WORKS INC

    Inventor： STETTLER CHRISTIAN H

    IPC: B21D53/30 ,  B21J9/06

    CPC classification number: B21D53/30 ,  Y10T29/49529

    Abstract: APPARATUS FOR RADIAL COMPRESSION FORMING OF METAL ARTICLES IS DESCRIBED IN WHICH A PLURALITY OF RADIALLY CONTRACTABLE DIE JAW SEGMENTS IN A SHRINK-FORMING DISPOSED IN A HORIZONTAL PLANE VERTICALLY ABOVE A WORKPIECE FEEDING STATION WITH AUXILIARY TOOLING ALSO BEING CONTAINED OPTIONALLY WITHIN THE HEAD. THE SHRINK-FORMING HEAD AND TOOLING ARE CARRIED ON TRUNNIONS FOR ROTATION ABOUT A HORIZONTAL AXIS TO ALLOW ACCESS AND MAINTENANCE TO THE DIES AND TOOLING.

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