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    • 57. 发明公开
    • Spanneinrichtung
    • EP1238751A2
    • 2002-09-11
    • EP02004191.9
    • 2002-02-26
    • Vischer & Bolli AG
    • Etter, Ernst
    • B23Q1/00B23B31/107B23B31/20B23B31/30
    • B23Q1/0072B23B31/204
    • Die Erfindung betrifft eine Spanneinrichtung zur Fixierung eines Einzugsbolzens (11) an einem Maschinentisch, einer Aufspannplatte oder dergleichen mit einer Aufnahme (10), in die der Einzugsbolzen (11) einsetzbar ist, und einem Spannmechanismus, um den Einzugsbolzen (11) in der Aufnahme (10) zu fixieren, wobei der Spannmechanismus eine Spannzange mit mehreren Spannzungen (13) aufweist, die an ihrem einen Ende an einem in der Aufnahme (10) angeordneten Halteelement (14) fixiert sind und an ihrem freien Ende zwischen einer radial inneren Spannstellung und einer äußeren Freigabestellung bewegbar und durch einen Kolben (5) in der Spannstellung arretierbar sind. Die erfindungsgemäße Spanneinrichtung ist dadurch gekennzeichnet, daß das Halteelement (14) mit den Spannzungen (13) axial verschiebbar und mit radialem Spiel in der Aufnahme (10) angeordnet ist.
    • 夹具组件将拉入螺栓(11)固定到机床工作台上,并具有带有螺栓凹槽(10)的板,夹具具有固定在保持元件中的多个舌片。 舌头自由端在松动和固定位置之间移动,在此位置上,它们被活塞保持。 保持元件特别与舌片一起轴向地滑动。 保持元件在凹槽内具有径向游隙。
    • 58. 发明授权
    • HYDROMECHANICAL CHUCK
    • 液压机械式FEED
    • EP0963269B1
    • 2002-08-14
    • EP97951415.5
    • 1997-12-19
    • ETP TRANSMISSION AB
    • LINDSTRÖM, Stefan, ETP Transmission AB
    • B23B31/30B23B31/173
    • B23B31/204B23B31/305Y10T279/1266Y10T279/17307Y10T279/17316Y10T279/17521
    • A hydromechanical chuck which is preferably intended to be mounted, with one end (2) thereof, in a machine tool, for instance in a drilling machine, a milling machine, a lathe machine etc. and, with the opposite end (3) thereof to releasably hold a shaft tool (4) like a drill, a milling tool, a rotary saw blade, a rotary grinding roll, and formed as a cone coupling chuck comprising a relatively thin inner sleeve (5) which can change its radial dimensions, and having a central axial bore (8) for receiving the shaft of a shaft tool (4), and adapted for being radially compressed against the said tool (4) shaft, and further having a mainly form solid outer sleeve (6) which is axially displaceable on the inner sleeve (5), and in which the inner sleeve (5) and the outer sleeve (6) are formed with a matching cone surface (7) which, upon a displacement of the outer sleeve (6) on the inner sleeve (5) provides a radial compression of the inner sleeve (5), and in which the chuck is formed with a hydraulic clamp pressure chamber (9, 11, 12) comprising a hydraulic pressure medium which, upon pressurization makes the outer sleeve (6) become displaced on the inner sleeve (5) thereby centering and clamp connecting the tool (4), and a pressure release chamber (10) for releasing the joint between the chuck and the tool (4).
    • 59. 发明公开
    • Spindle unit for a machine tool
    • Werkzeugmaschinenspindel
    • EP1201341A1
    • 2002-05-02
    • EP01307365.5
    • 2001-08-30
    • MAKINO MILLING MACHINE CO. LTD.
    • Mochida, Hideki, Makino Milling Machine Co., Ltd.Kaneko, Hiroo, Makino Milling Machine Co., Ltd.
    • B23B31/30
    • B23B31/305Y10T409/309408Y10T409/30952Y10T483/1736
    • The present relates to a spindle unit (11) for a machine tool having a spindle (13) rotatably held in a housing (17) and a hydraulic tool holding system at a forward end of the spindle (13) and capable of holding a tool on the spindle (13) without a tool holder. The spindle (13) of the spindle unit (11) is provided with a tool receiving bore (25) formed in the forward end portion of the spindle (13) along the rotational axis (23) thereof, one or more pressure chambers (31) disposed around the tool receiving bore (25) in spaced relationship from the tool receiving bore (25) by a thin wall elastically deformable in a radial direction of the spindle (13), and a working fluid passage (33) formed in the spindle (13) and in fluid communication with the one or more pressure chambers (31). The spindle unit (11) further includes a pressure adjusting device (35) arranged in the rear portion of the spindle unit (11) and connected to the pressure chamber (31) through the working fluid passage (33). The pressure adjusting device (35) adjustably changes the pressure of the working fluid within the pressure chamber (31) so that it can elastically deform the thin wall to enlarge or reduce the tool receiving bore (25) in radius, thereby holding or releasing the tool inserted into the tool receiving bore (25).
    • 本发明涉及一种用于机床的主轴单元(11),其具有可旋转地保持在壳体(17)中的主轴(13)和在主轴(13)的前端处的液压工具保持系统,并且能够保持工具 在没有刀架的主轴(13)上。 主轴单元(11)的主轴(13)设置有沿其旋转轴线(23)形成在主轴(13)的前端部分中的工具接收孔(25),一个或多个压力室(31 )与所述工具接收孔(25)间隔开的方式设置在所述工具接收孔(25)周围,所述薄壁沿着所述主轴(13)的径向可弹性变形的薄壁,以及形成在所述主轴(13)中的工作流体通道 (13)并且与所述一个或多个压力室(31)流体连通。 主轴单元(11)还包括设置在主轴单元(11)的后部并通过工作流体通道(33)连接到压力室(31)的压力调节装置(35)。 压力调节装置(35)可调节地改变压力室(31)内的工作流体的压力,使得其能够使薄壁弹性变形,从而使工具接收孔(25)的半径扩大或减小,从而保持或释放 工具插入工具接收孔(25)中。