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    Rotary cutting tool
    2.
    发明申请
    Rotary cutting tool 有权

    公开(公告)号：US20210170505A1

    公开(公告)日：2021-06-10

    申请号：US17112483

    申请日：2020-12-04

    Applicant: Kennametal Inc.

    Inventor： Horst Manfred Jäger ,  Berthold Heinrich Zeug

    IPC: B23C5/22

    Abstract: A rotary cutting tool, in particular a drill, is described, which comprises a shank and an exchangeable cutting tip (14). For this purpose, a locking geometry having an undercut of a first type and a torque transmission geometry is provided on the shank. A locking projection having a torque transmission counter-geometry is provided on the cutting tip, wherein, in a mounted state, the locking projection engages in the undercut of the first type and the torque transmission counter-geometry abuts the torque transmission geometry. The rotary cutting tool further comprises a securing unit, which holds the cutting tip on the shank.

    ROTARY TOOL
    3.
    发明申请
    ROTARY TOOL 审中-公开

    公开(公告)号：US20180264558A1

    公开(公告)日：2018-09-20

    申请号：US15916903

    申请日：2018-03-09

    Applicant: Kennametal Inc.

    Inventor： Horst Manfred Jäger ,  Michael Schuffenhauer ,  Jüergen Schwäegerl ,  Berthold Heinrich Zeug

    IPC: B23B51/02

    CPC classification number: B23B51/02 ,  B23B2251/02 ,  B23B2251/50

    Abstract: The rotary tool has two coupling parts, namely a carrier and a cutting head having a front end face. The carrier has a pin seat into which a coupling pin of the cutting head is inserted. Effective stop faces are formed on the pin seat and on the coupling pin in the axial direction for axial pull-out protection. For a design that is as simple as possible, in particular in terms of grinding, a side face adjoins a respective stop face of the coupling pin and, when viewed in the axial direction, freely extends to the end face. In particular, the side face forms a torque face. For reliable clamping attachment, in particular with larger nominal diameters (D), a separating slot is made in the carrier and a clamping screw is inserted into it, both of which serve to fix the cutting head in the pin seat.

    Rotary cutting tool
    4.
    发明授权
    Rotary cutting tool 有权

    公开(公告)号：US11623287B2

    公开(公告)日：2023-04-11

    申请号：US17112483

    申请日：2020-12-04

    Applicant: Kennametal Inc.

    Inventor： Horst Manfred Jäger ,  Berthold Heinrich Zeug

    IPC: B23B51/02 ,  B23C5/22

    Abstract: A rotary cutting tool, in particular a drill, is described, which comprises a shank and an exchangeable cutting tip (14). For this purpose, a locking geometry having an undercut of a first type and a torque transmission geometry is provided on the shank. A locking projection having a torque transmission counter-geometry is provided on the cutting tip, wherein, in a mounted state, the locking projection engages in the undercut of the first type and the torque transmission counter-geometry abuts the torque transmission geometry. The rotary cutting tool further comprises a securing unit, which holds the cutting tip on the shank.

    ROTARY TOOL, IN PARTICULAR A DRILL, AND A CUTTING HEAD FOR SAID ROTARY TOOL
    7.
    发明申请
    ROTARY TOOL, IN PARTICULAR A DRILL, AND A CUTTING HEAD FOR SAID ROTARY TOOL 审中-公开
    旋转工具，特别是钻头，以及用于转动工具的切割头

    公开(公告)号：US20170028480A1

    公开(公告)日：2017-02-02

    申请号：US15302443

    申请日：2015-03-24

    Applicant: Kennametal Inc.

    Inventor： Jürgen Schwägerl ,  Berthold Heinrich Zeug ,  Horst Manfred Jäger ,  Herbert Rudolf Kauper ,  Julia Tempelmeier ,  Tim Guter

    IPC: B23B51/02 ,  B23B51/06

    CPC classification number: B23B51/02 ,  B23B51/06 ,  B23B2240/04 ,  B23B2240/32 ,  B23B2250/12 ,  B23B2251/02

    Abstract: The rotary tool (2) is in particular designed as a modular drill and extends in an axial direction (4) along an axis of rotation (6). It comprises two coupling parts, namely a carrier (10) and a cutting head (12) that is attached to the carrier (10) so as to be exchangeable. A pin receiving means (20) is provided on the carrier (10), into which pin receiving means a coupling pin (40) of the cutting head (12) is introduced in a clamping manner and so as to be reversibly exchangeable. The pin receiving means (20) and the coupling pin (40) have torque sections (30a,b) and clamping sections (32a,b) that correspond to one another. In order to permit simple production, these clamping and torque sections are oriented parallel to the axis of rotation (6). In addition, in order to prevent pulling-out in an axial direction, stop surfaces (38a,b) are provided on the pin receiving means (20) and on the coupling pin (40), said stop surfaces being effective in an axial direction (4) and corresponding to one another. These stop surfaces preferably extend horizontally and therefore perpendicular to the axis of rotation (6).

    Abstract translation: 旋转工具（2）特别地被设计为模块式钻机，并且沿着旋转轴线（6）在轴向方向（4）上延伸。 它包括两个联接部分，即一个载体（10）和一个连接到载体（10）上以便可更换的切割头（12）。 一个销接收装置（20）设置在所述托架（10）上，所述销接收装置以切割头（12）的联接销（40）以夹紧方式被引入并可逆地更换。 销接收装置（20）和联接销（40）具有彼此对应的扭矩部分（30a，b）和夹紧部分（32a，b）。 为了允许简单的生产，这些夹紧和扭矩部分平行于旋转轴线（6）定向。 此外，为了防止在轴向上的拉出，在销接收装置（20）和连接销（40）上设置止动面（38a，b），所述止动面在轴向上有效 （4）并相互对应。 这些止动表面优选地水平延伸，因此垂直于旋转轴线（6）。

    Rotary tool, particularly a drill, and a cutting head for such a rotary tool
    8.
    发明授权
    Rotary tool, particularly a drill, and a cutting head for such a rotary tool 有权

    公开(公告)号：US10207336B2

    公开(公告)日：2019-02-19

    申请号：US15331615

    申请日：2016-10-21

    Applicant: Kennametal Inc.

    Inventor： Jürgen Schwägerl ,  Berthold Heinrich Zeug ,  Horst Manfred Jäger

    IPC: B23B51/02

    Abstract: A rotary tool comprising two coupling parts, namely a carrier and a cutting head in a front end surface. The carrier comprises a pin receptacle into which a coupling pin of the cutting head is inserted. In order to prevent pulling-out in an axial direction, stop surfaces are provided on the pin receptacle and on the coupling pin, said stop surfaces being effective in an axial direction. For a design that is as simple as possible, in particular with regard to grinding, each stop surface of the coupling pin is adjoined by a lateral surface which freely tapers off in the direction toward the end surface as viewed in the axial direction. In particular, the lateral surface constitutes a torque surface.

    TOOL COUPLING BETWEEN TWO COUPLING PARTS, AND COUPLING PART FOR SUCH A TOOL COUPLING
    9.
    发明申请
    TOOL COUPLING BETWEEN TWO COUPLING PARTS, AND COUPLING PART FOR SUCH A TOOL COUPLING 审中-公开

    公开(公告)号：US20170113282A1

    公开(公告)日：2017-04-27

    申请号：US15331633

    申请日：2016-10-21

    Applicant: Kennametal Inc.

    Inventor： Berthold Heinrich Zeug ,  Jürgen Schwägerl ,  Horst Manfred Jäger

    IPC: B23B51/02 ,  B23C5/10

    Abstract: A tool coupling used for a clamping connection between two coupling parts, in particular between a cutting head and a carrier of a rotary tool, in particular of a drill. The coupling parts comprise clamping sections, which respectively correspond to one another and which can be clamped against each other by turning counter to a predefined direction of rotation about an axis of rotation so that a press fit is produced. In order to produce a high clamping force and at the same time allow for a simple installation via screwing in, each clamping section comprises several successive clamping surfaces which—with respect to a cross section viewed orthogonally to the axial direction—respectively travel along a circular arc, wherein the diameter increases for clamping surfaces succeeding one another in the direction of rotation.

    Coupling part for rotary tool and rotary tool including same
    10.
    发明授权
    Coupling part for rotary tool and rotary tool including same 有权
    用于旋转刀具和旋转刀具的联轴器部件包括相同的部件

    公开(公告)号：US09481040B2

    公开(公告)日：2016-11-01

    申请号：US14282426

    申请日：2014-05-20

    Applicant: Kennametal Inc.

    Inventor： Juergen Schwaegerl ,  Berthold Heinrich Zeug

    IPC: B23B51/02 ,  B23B51/06

    CPC classification number: B23B51/02 ,  B23B51/06 ,  B23B2250/12 ,  B23B2251/02 ,  Y10T408/455 ,  Y10T408/9098 ,  Y10T408/95

    Abstract: A coupling part structured to engage with a complementary coupling part for interchangeably fastening a cutting head to a carrier of a rotary cutting tool. The coupling part includes a pair of coupling pins arranged opposite each other with respect to a central longitudinal axis and spaced apart from each other so as to form a receiving space structured to receive a central pin of the complementary coupling part. Each coupling pin includes a stop surface for transmitting a torque, a radially external outer surface, and a radially internal inner surface. At least one of the outer surface or inner surface is a clamping surface oriented in an obliquely inclined manner with respect to the central longitudinal axis for centering and clamping the coupling part.

    Abstract translation: 联接部件，其构造成与互补联接部件接合，用于将切割头可互换地紧固到旋转切削工具的托架。 耦合部分包括相对于中心纵向轴线彼此相对布置并且彼此间隔开的一对联接销，以便形成构造成容纳互补联接部分的中心销的接纳空间。 每个联接销包括用于传递扭矩，径向外部外表面和径向内部内表面的止动表面。 外表面或内表面中的至少一个是相对于中心纵向轴线以倾斜倾斜的方式定向的夹紧表面，用于定心和夹持联接部件。

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