知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.016 秒)

    Expanding arbor-collet
    5.
    发明授权
    Expanding arbor-collet 失效
    扩展ARBOR-COLLET

    公开(公告)号：US3587371A

    公开(公告)日：1971-06-28

    申请号：US3587371D

    申请日：1968-12-11

    申请人： SHERWOOD JOHN F

    发明人： SHERWOOD JOHN F

    IPC分类号： B23B31/40

    CPC分类号： B23B31/4006 ,  Y10T82/268 ,  Y10T279/1008 ,  Y10T279/1016

    摘要： AN EXPANDING ARBOR-COLLET DESIGNED TO HOLD WORK BY INTERNAL PRESSURE OF THE ARBOR WITHIN A WORKPIECE, COMPRISING A HOLLOW BODY AND FULCRUM MEANS WHICH PERMIT END BORING OF THE WORKPIECE WITHOUT OBSTRUCTION BY AN ARBOR PARTS. THE FULCRUM MEANS IS MANUALLY MOVABLE LONGITUDINALLY O THE BODY INTO TWO POSITIONS, ONE FOR MACHINING THE FORWARD END IN PREPARATION FOR HOLDING THE WORK, AND THE OTHER FOR EXPANDING THE FORWARD END INTO WORK HOLDING ENGAGEMENT. THE BODY HAS TWO SETS OF SLOTS EXTENDING INWARDLY FROM OPPOSITE ENDS, THE SLOTS OF ONE SET BEING LOCATED CIRCUMFERENTIALLY BETWEEN THE SLOTS OF THE OTHER SET, WHEREBY A UNITARY BUT COMPRESSIBLE STRUCTURE IS PRODUCED. A CONCAVE AREA ON THE

    COLLET BODY PROVIDES FOR CLAMPING BY A CHUCK AND EXPANSION OF THE WORK HOLDING END. AN ARCUATE SURFACE ADJACENT THE EXPANSIBLE PORTION PROVIDES FOR TANGENTIAL CONTACT OF THE ARBOR WITH THE TAPERED SURFACE OF A CHUCK OR OTHER CLAMPING DEVICE.