Device for making a hole in a workpiece

    公开(公告)号:US11766725B2

    公开(公告)日:2023-09-26

    申请号:US17264564

    申请日:2019-07-08

    CPC classification number: B23B49/02 B23B47/32 B23B41/02 B23B49/00

    Abstract: Device for making a hole in a workpiece, including a drilling tool, a supporting apparatus that is or can be assigned to the drilling tool and is configured for supporting the drilling tool on at least one supporting region, wherein the supporting apparatus includes an elongate main body that includes at least two main-body elements, at least one main-body element being mounted so as to be movable relative to at least one additional main-body element in order to change the length measurement of the main body.

    DRILL BODY AS WELL AS SUPPORT PAD THEREFOR
    9.
    发明申请
    DRILL BODY AS WELL AS SUPPORT PAD THEREFOR 失效
    钻石身体如同其支撑垫一样

    公开(公告)号:US20100158623A1

    公开(公告)日:2010-06-24

    申请号:US12640213

    申请日:2009-12-17

    Inventor: Åke DANIELSSON

    Abstract: A support pad intended for metal machining drills and of the type that includes an outer surface, an inner surface, front and rear end surfaces, as well as a pair of spaced-apart side surfaces, between the outer surface and at least the front end surface a convexly arched entering surface being formed that extends between, on one hand, a pair of front and rear borderlines, the rear one of which borders the outer surface, and, on the other hand, two tangentially spaced-apart side borderlines. The rear borderline of the entering surface has the shape of a convex arc line as viewed in planar view toward the outer surface, more precisely an arc line the crest of which is facing forward. In such a way, the position of the contact of the support pad with a hole wall can be predetermined in an exact way. The drill body may be equipped with one or more support pads.

    Abstract translation: 一种用于金属加工钻头的支撑垫,并且包括外表面,内表面,前后端表面以及一对间隔开的侧表面的类型的支撑垫在外表面和至少前端之间 表面形成凸形的进入表面,其一方面在一对前后边界线之间延伸,一对前边界线和后边界线,其后部边界线与外表面接合,另一方面是两个切向间隔开的边界线。 进入表面的后边缘具有从平面图向外表面观察的凸弧线的形状,更准确地说,其顶端面向前方的弧线。 以这种方式,可以精确地预先确定支撑垫与孔壁的接触位置。 钻体可以配备有一个或多个支撑垫。

    Drill break-through sensor
    10.
    发明授权
    Drill break-through sensor 失效
    钻孔穿透传感器

    公开(公告)号:US4310269A

    公开(公告)日:1982-01-12

    申请号:US121994

    申请日:1980-02-19

    Abstract: An improved power drill having means for sensing when the drill bit has penetrated through the workpiece and for then retracting the drill bit from the workpiece. An electrical signal responsive to the axial force between the drill and the drill bit is used to sense when the drill bit pierces the workpiece. A sudden decrease in the axial force triggers a mechanism for retracting the drill bit from the workpiece. Means are included to detect broken bits, missing bits and previously drilled holes.

    Abstract translation: 一种改进的电钻,具有用于感测钻头何时穿过工件并且然后从工件回缩钻头的装置。 使用响应于钻头和钻头之间的轴向力的电信号来感测钻头何时刺穿工件。 轴向力的突然下降触发了将钻头从工件回缩的机构。 包括检测碎点,丢失位和以前钻孔的手段。

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