VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINER LUFTREIFENFELGE
    4.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINER LUFTREIFENFELGE 有权
    方法和设备用于生产轮胎轮辋

    公开(公告)号:EP1551577A1

    公开(公告)日:2005-07-13

    申请号:EP03747977.1

    申请日:2003-09-06

    发明人: FRIESE, Udo

    IPC分类号: B21D53/30 B21D22/16

    摘要: The invention relates to a method for production of a weight-optimised pneumatic tyre rim. A tube section (1a), preferably produced from a welded tube is used to produce a rim bed (1) by cold forming, with rotationally symmetrical, partially different wall thicknesses and then connected to a rim inner joining surface. According to the invention, firstly the wall of the cylindrical tube section (1a), starting from both end edges, around a given rotationally symmetrical region, which forms a flank (6), is brought to a largely exact wall thickness (S2) with formation of a pre-form, whereby the excess material of the flank (6), outside the tolerance range, is displaced in to a deep bed zone (7) between the two flanks (6) and then the flanks (6) are shaped by drawing to the free edge region using pressure, optionally varying in the thickness thereof (S4, SS) and reduced to a given mass.

    VERFAHREN ZUR SPANLOSEN HERSTELLUNG EINES EINE NABE AUFWEISENDEN GETRIEBETEILES
    5.
    发明授权
    VERFAHREN ZUR SPANLOSEN HERSTELLUNG EINES EINE NABE AUFWEISENDEN GETRIEBETEILES 失效
    用于生产芯片宽松HUB所具有的传送PART

    公开(公告)号:EP0961664B1

    公开(公告)日:2003-02-19

    申请号:EP97951844.6

    申请日:1997-12-10

    发明人: FRIESE, Udo

    IPC分类号: B21D53/26 B21D22/14

    摘要: The invention relates to a method for producing without cutting a gear part having a hub. According to said method, to form the hub a front end of the workpiece made of a steel sheet billet is joined to an additional main spindle (22) and held in position by an additional movable stop (55) having a receiving recess. By pressing the workpiece by means of one or more pressure rollers (66), the thickness of the back of said workpiece is reduced and deformed into a stepped body inside the receiving recess (3) of the movable stop, said stepped body being configured concentrically to form a hub. After the hub has been formed, the front end of the workpiece produced from a steel sheet billet or pre-drawn part is joined to a further main spindle and held in position by an additional movable stop (55) having a receiving recess. By pressing the workpiece by means of one or more pressure rollers (66), the thickness of the back of the workpiece is reduced and deformed into a stepped body inside the receiving recess of the movable stop, said stepped body being configured concentrically to form a hub.

    VERFAHREN ZUR HERSTELLUNG EINER NABE IM DRÜCKVERFAHREN MITTELS WENIGSTENS EINER DREHBAREN DRÜCKROLLE
    10.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINER NABE IM DRÜCKVERFAHREN MITTELS WENIGSTENS EINER DREHBAREN DRÜCKROLLE 有权
    一种用于生产枢纽驱动的过程由至少一个旋转推压滚动

    公开(公告)号:EP2167254A2

    公开(公告)日:2010-03-31

    申请号:EP08749780.6

    申请日:2008-04-28

    IPC分类号: B21D22/16 B21D53/26 F16H55/44

    摘要: Disclosed is a method for producing a component, particularly a transmission component, comprising a hub (11) in a pressing process without cutting the metal. In said method, a hub (12) is shaped from a rotating metal disk that has a through-hole (2) by means of at least one rotating pressing roll (8), said hub (12) extending substantially in a radial direction relative to the plane of the metal disk. The disclosed method is characterized in that the pressing roll (8) is radially applied from the outside towards the inside in such a way as to at least temporarily immerse into at least some sections of the metal disk, while pressing disk material (10) from the metal disk against the mold (7) such that a hub (12) is formed that encompasses the mold (7) as an internal section as well as an external hub section (13) which is made from material of the metal disk (1) and is pressed against the mold (7).