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公开(公告)号：US10434582B2
公开(公告)日：2019-10-08
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
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.
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Patent Agency Ranking
公开(公告)号：US10213845B2
公开(公告)日：2019-02-26
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
Abstract: A rotary tool designed as a modular drill, extending in an axial direction along an axis of rotation. It comprises two coupling parts: a carrier; and a cutting head that is attached to the carrier so as to be exchangeable. The carrier includes pin receiving means, into which a coupling pin of the cutting head is introduced in a clamping manner and so as to be reversibly exchangeable. The pin receiving means and the coupling pin have torque sections and clamping sections that correspond to one another and are oriented parallel to the axis of rotation. In addition, to prevent axial pull-out, stop surfaces are provided on the pin receiving means and on the coupling pin, the stop surfaces being effective in an axial direction and corresponding to one another. These stop surfaces preferably extend horizontally and therefore perpendicular to the axis of rotation.
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公开(公告)号：US20160075001A1
公开(公告)日：2016-03-17
申请号：US14851988
申请日：2015-09-11
Applicant: Kennametal Inc.
Inventor： Julia TEMPELMEIER , Jürgen Schwagerl , Herbert Rudolf Kauper , Tim Guter , Berthold Heinrich Zeug , Rainer Büttner , Peter Sollfrank , Gunnar Schmitt
CPC classification number: B25B13/50 , B25B13/065
Abstract: The mounting wrench (2) is used to engage or disengage a tool head (24) of a modular tool. The mounting wrench (2) incorporates a base body (4), which extends from an upper surface (20) along a centered longitudinal axis (18) to an underside (22). In addition, it has a slotted part (6), extending in the direction of the centered longitudinal axis (18), with a slot (10), into which the tool head (24) can be inserted. The slotted part (6) has two opposing keys (14), extending radially inward, which are each designed to mesh into a keyway (30) of the tool head (24). The keys (14) have a rounded end face (32), oriented radially inward, and are sloped relative to the centered longitudinal axis (18) so that the distance (a) between the keys (14) increases in the direction of the centered longitudinal axis (18).
Abstract translation: 安装扳手（2）用于接合或脱离模块化工具的工具头（24）。 安装扳手（2）包括从上表面（20）沿着中心纵向轴线（18）延伸到下侧（22）的基体（4）。 另外，它具有沿中心纵向轴线（18）的方向延伸的开槽部分（6），其具有可插入工具头（24）的槽（10）。 开槽部分（6）具有径向向内延伸的两个相对的键（14），每个相对的键被设计成啮合到工具头（24）的键槽（30）中。 键（14）具有圆周端面（32），该圆形端面径向向内定向，并且相对于中心的纵向轴线（18）倾斜，使得键（14）之间的距离（a）在居中的方向上增加 纵轴（18）。
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公开(公告)号：US10576552B2
公开(公告)日：2020-03-03
申请号：US15916903
申请日：2018-03-09
Applicant: Kennametal Inc.
IPC: B23B51/02
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.
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公开(公告)号：US10058930B2
公开(公告)日：2018-08-28
申请号：US14243350
申请日：2014-04-02
Applicant: Kennametal Inc.
Inventor： Juergen Schwaegerl , Berthold Heinrich Zeug
IPC: B23B51/02
CPC classification number: B23B51/02 , B23B2240/04 , B23B2251/02 , Y10T408/9098 , Y10T408/95
Abstract: The coupling part, in particular cutting head for a drilling tool for the interchangeable fastening in a coupling receptacle, has a coupling pin which is enclosed by a head support surface, wherein the coupling pin has a plurality of types of functional surfaces, namely stop surfaces for transmitting a torque between the cutting head and the carrier, and clamping surfaces for centering and clamping the cutting head in the coupling receptacle. The coupling pin has an axially front pin region and an adjoining, axially rear pin region, and the clamping surfaces and the stop surfaces are arranged in different pin regions. This decoupling and distribution of the functional surfaces to the various pin regions permits simpler production of the coupling pin and an overall more robust configuration.
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