DEVICE FOR LIMITING THE ADVANCE DURING A DRILLING OPERATION
    2.
    发明申请
    DEVICE FOR LIMITING THE ADVANCE DURING A DRILLING OPERATION 审中-公开
    用于限制钻井操作期间的进展的装置

    公开(公告)号:WO2007071757A1

    公开(公告)日:2007-06-28

    申请号:PCT/EP2006/070070

    申请日:2006-12-21

    Abstract: In a device for limiting the advance of a drill during a drilling operation, which can be used in conjunction with a hand drill (15) or with an automatic manufacturing machine, the device comprising a housing (2) with a stop cage (2a) and a spindle (3) mounted rotatably and axially displaceably in the housing, and a stop (9) which is adjustable in the axial direction being arranged for limiting the advance, the invention consists in that the stop cage (2a) comprises a chip breakes (13) for breaking the chips, with a housing-side end and a free end, in such a way that it extends approximately parallel and directly adjacent to the workpiece surface and approximately radially from the outside towards the drilling tool (stepped drill bit 12) in such a way that its free end almost touches the countersink (12b) . Damage to the surface of workpieces is prevented by the invention, so that corresponding refinishing is avoided. Moreover, the removal of the coiled chips from the drilling tool previously necessary after each drilling cycle is dispensed with.

    Abstract translation: 在用于限制在可以与手钻(15)或自动制造机器一起使用的钻井操作期间钻头的推进的装置中,所述装置包括具有止动笼(2a)的壳体(2) 以及在壳体中可旋转地和轴向移动地安装的主轴(3),并且在轴向方向上可调节的止动件(9)被布置用于限制进给,本发明包括止动保持架(2a)包括切屑 (13),其具有壳体侧端部和自由端,使得其大致平行并直接邻近工件表面延伸并且从外部大致径向地朝向钻孔工具(阶梯式钻头12 ),使得其自由端几乎接触锪孔(12b)。 通过本发明防止了工件表面的损伤,从而避免了相应的修补。 此外,省去了在每个钻孔循环之后先前需要从钻井工具中取出盘绕的切屑。

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