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    • 2. 发明公开
    • Dispositif de serrage pour l'usinage simultané des deux extrémités d'une pièce
    • Klemmeinrichtungfürein a beiden Enden gleichzeitig zu bearbeitendesWerkstück。
    • EP0006806A2
    • 1980-01-09
    • EP79400408.5
    • 1979-06-19
    • RAMO S.A. Société anonyme dite:
    • Champeau, MarcelTabutin, André
    • B23B31/20B23B31/00
    • B23B31/00B23B31/204Y10T82/2562Y10T279/1266Y10T279/29
    • Dispositif de serrage pour l'usinage interne et/ou externe simultané des deux extrémités d'une pièce, comprenant un boîtier de poupée dans lequel est montée rotative une broche tubulaire comportant, intérieurement, deux pistons annulaires coulissant axialement et agissant respectivement sur deux pinces de serrage de la pièce à usiner.
      Les pinces de serrage 23, 24 qui sont montées respectivement dans les deux pistons 12, 13, présentent une partie conique 21, 22 coopérant avec une partie conique correspondante des pistons et une partie cylindrique 25, 26 centrée dans l'alésage des pistons, lesdites pinces 23, 24 étant en appui du côté opposé à leur partie cylindrique contre les couvercles 27, 28 solidaires de la broche 8 par une face conique s'étendant radialement afin de permettre un serrage radial des pinces sur la pièce.
      L'invention est utilisée dans les tours à poupée centrale.
    • 一种用于在工件的两端内部和/或外部同时加工的夹紧装置,包括头架壳体,其中管状心轴安装成旋转,所述心轴在内部设有两个轴向滑动的环形活塞并分别作用于两个 用于夹紧工件的夹头。 分别安装在两个活塞12,13中的两个夹紧夹头23,24设置有与活塞中的相应锥形部分配合的锥形部分21,22,以及圆柱形部分25,26,其位于 所述活塞,所述夹头23,24位于与其圆柱形部分相对的一侧,抵靠盖子27,28,与主轴8一起快速延伸通过径向延伸的圆锥形表面,以允许夹头在工件上的径向紧固 。 本发明用于具有中央主轴箱的车床。
    • 3. 发明公开
    • HYDROMECHANICAL CHUCK
    • 液压机械式FEED
    • EP0963269A1
    • 1999-12-15
    • EP97951415.0
    • 1997-12-19
    • ETP TRANSMISSION AB
    • LINDSTRÖM, Stefan, ETP Transmission AB
    • B23B31
    • 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).
    • 7. 发明公开
    • Work Support
    • Werkstückauflager
    • EP0807488A1
    • 1997-11-19
    • EP97201420.3
    • 1997-05-09
    • KABUSHIKI KAISHA KOSMEK
    • Yonezawa, Keitaro
    • B23Q3/10B23B31/20
    • B23Q3/10B23B31/201Y10T279/1266Y10T279/17521
    • A support rod (3) vertically movably inserted into a housing (2) is urged upward by an advancing spring (4). An annular piston (6) is inserted between a barrel portion (2c) of the housing (2) and an outer peripheral surface of the support rod (3). A collet (10) externally fitted onto a holding and fixing portion (C) of the support rod (3) is received by a lower end wall (2b) of the housing (2). A tapered transmission member (17) externally fitted onto the collet (10) is urged downward by a holding spring (22). The urging force clamps the support rod (3) at a predetermined height through the collet (10).
    • 垂直移动地插入壳体(2)中的支撑杆(3)被推进弹簧(4)向上推动。 环形活塞(6)插入在壳体(2)的筒部(2c)和支撑杆(3)的外周表面之间。 外部装配到支撑杆(3)的保持和固定部分(C)上的夹头(10)被壳体(2)的下端壁(2b)容纳。 外部装配到夹头(10)上的锥形传递构件(17)被保持弹簧(22)向下推动。 推动力通过夹头(10)将支撑杆(3)夹紧在预定的高度。