DE102008051573A1 - Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips - Google Patents

Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips Download PDF

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Publication number
DE102008051573A1
DE102008051573A1 DE200810051573 DE102008051573A DE102008051573A1 DE 102008051573 A1 DE102008051573 A1 DE 102008051573A1 DE 200810051573 DE200810051573 DE 200810051573 DE 102008051573 A DE102008051573 A DE 102008051573A DE 102008051573 A1 DE102008051573 A1 DE 102008051573A1
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DE
Germany
Prior art keywords
cutting edge
drilling tool
chip
cambers
flute
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE200810051573
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German (de)
Inventor
Horst Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolf Werkzeugtechnologie De GmbH
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE200810051573 priority Critical patent/DE102008051573A1/en
Publication of DE102008051573A1 publication Critical patent/DE102008051573A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/107—Bits for countersinking having a pilot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/48—Chip breakers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

The tool has chip guiding molds (3) running parallel, inclined, wave-shape or as cluster of individual recesses in different distances to a cutting edge (1). Four sides (4) of the molds have an angle to a chip groove surface that is adapted to requirements of a material to be cut and a process. The molds are produced in different depths, and have different lengths and shapes in an axial direction. Cambers in different shapes are placed at rear sides (5) that increase under different angles to a chip groove (2), where the cambers support folding and defined rolling of chips.

Description

Gegenstand der Erfindung ist ein Bohrwerkzeug aus Vollhartmetall oder anderen Materialien bzw. mit Schneideneinsätzen oder Systemen zum Austausch des Bohrerkopfes, mit beliebigem Stirn- und Stufenanschliff und Schaft in jeder bekannten Form mit spezieller Spanleitstufe nach dem Oberbegriff des Patentanspruchs 1.object The invention is a solid carbide or other drilling tool Materials or with cutting inserts or systems for replacement the drill head, with any forehead and Stufenanschliff and Shank in every known shape with special chip breaker the preamble of claim 1.

Stand der TechnikState of the art

Die Erfindung betrifft ein spanabhebendes Werkzeug, in erster Linie Bohrwerkzeug, mit einer zylindrischen und um die Längsachse rotationssymmetrischen Form. Das Werkzeug hat wenigstens eine Schneide an der Bohrerspitze, die von der Längsachse nach radial außen verläuft. Schneidkanten können auch zwischen verschiedenen Durchmessern des Werkzeugs verlaufen. Die Schneidkanten sind dabei schräg oder orthogonal zur Mittelachse ausgeprägt. Die Form der Schneidkante selbst kann konkav, gerade oder in sonstiger Art geformt sein. Bekannte Bohrwerkzeuge dieser Art können mit einer spiraligen oder geraden Nut ausgebildet sein. Gerade Spannuten sind parallel zur Längsachse angeordnet. Bei langspanenden Materialien kann es dazu kommen, dass sich ein nicht gewünschter Fließspan bildet. Fließspäne sollen beim Bearbeitungsprozess meist unterbunden werden, da sie sonst die automatischen Abläufe stören.The The invention relates to a cutting tool, primarily Drilling tool, with a cylindrical and about the longitudinal axis rotationally symmetrical shape. The tool has at least one cutting edge at the drill tip, which extends radially outward from the longitudinal axis. cutting edges can also run between different diameters of the tool. The Cutting edges are inclined or orthogonal to the central axis. The shape of the cutting edge itself may be concave, straight or otherwise shaped. Known drilling tools of this kind can be formed with a spiral or straight groove. Straight flutes are parallel to the longitudinal axis arranged. With long-chipping materials it can happen that an unwanted one continuous chip forms. Flow chips should usually be prevented during the machining process, otherwise they the automatic processes to disturb.

Claims (7)

Das Bohrwerkzeug ist im Wesentlichen zylindrisch und bzgl. der Längsachse rotationssymmetrisch, mit wenigstens einer Schneide (1), die von der Längsachse an der Bohrerspitze schräg nach radial außen verläuft und einer von der Schneidkante axial nach hinten gerade verlaufenden Spannut (2). Die Stirnfläche ist mit einem Kegel-Mantel-Anschliff versehen. Der Übergang von Stirnfläche zu Spannut (2) bildet die Schneidkante (1). In der Spannut (2) unterhalb der Schneidkante (1) ist eine Spanleitform (3) in Form von definierten Vertiefungen und Erhöhungen ausgebildet. In dieser Spanleitform (3) wird die Form des Spans verändert und gebrochen, um der Entstehung von Fließspänen entgegenzuwirken. Die Spanleitform/en (3) verläuft/verlaufen dabei parallel, schräg, wellenförmig oder als Cluster von Einzelvertiefungen in unterschiedlichen Abständen zur Schneide (1). Die vordere Flanke/n (4) der Spanleitform/en hat/haben einen Winkel zur Spannutfläche, der den Anforderungen des zu zerspanenden Werkstoffes sowie des Prozesses angepasst ist. Die Spanleifform/en (3) ist/sind in unterschiedlichen Tiefen hergestellt und hat/haben in axialer Richtung unterschiedliche Längen und Formen. An der rückliegenden, der Schneidkante entfernten Flanke/n (5), die unter verschiedenen Winkeln zur Spannut ansteigt/ansteigen, sind zudem Wölbungen in unterschiedlichen Formen eingebracht, die das Brechen und das definierte Abrollen des Spans unterstützen, wie in Skizze 1, 2, 3 oder ähnlich.The drilling tool is essentially cylindrical and rotationally symmetrical with respect to the longitudinal axis, with at least one cutting edge (FIG. 1 ) extending obliquely radially outward from the longitudinal axis at the drill tip and a flute extending axially rearward from the cutting edge ( 2 ). The end face is provided with a cone-coat-cut. The transition from end face to flute ( 2 ) forms the cutting edge ( 1 ). In the flute ( 2 ) below the cutting edge ( 1 ) is a chip form ( 3 ) in the form of defined depressions and elevations. In this chip formula ( 3 ) the shape of the chip is changed and broken to counteract the formation of flow chips. The Spanleitform / s ( 3 ) runs / run parallel, obliquely, wavy or as a cluster of individual depressions at different distances from the cutting edge ( 1 ). The leading edge (s) ( 4 ) the chip guide / s has / have an angle to the flute surface, which is adapted to the requirements of the material to be machined and the process. The chip form (s) ( 3 ) is / are made at different depths and has / have different lengths and shapes in the axial direction. At the rear, the cutting edge remote edge / n ( 5 ), which increases / increases at different angles to the flute, also vaults are introduced in different forms that support the breaking and the defined unwinding of the chip, as in sketch 1, 2, 3 or similar. Bohrwerkzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Spannut (2) spiralig verläuft.Drilling tool according to claim 1, characterized in that the flute ( 2 ) spirals. Bohrwerkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schneide (1) gerade von der Längsachse nach radial außen verläuft.Drilling tool according to claim 1 or 2, characterized in that the cutting edge ( 1 ) extends straight from the longitudinal axis radially outward. Bohrwerkzeug nach Anspruch 1, dadurch gekennzeichnet, dass die zusätzlich zur Schneide an der Bohrerspitze auch Schneide zwischen verschiedenen Durchmessern (6) aufzeigt, die schräg oder orthogonal zur Längsachse des Werkzeugs vom kleineren zum größeren Durchmesser verlaufen. An diesen Schneiden wird ebenfalls bzw. ausschließlich eine Spanleitform angebracht.Drilling tool according to claim 1, characterized in that in addition to the cutting edge at the drill bit tip also cutting edge between different diameters ( 6 ) pointing obliquely or orthogonal to the longitudinal axis of the tool from smaller to larger diameter. At these cutting also or exclusively a Spanleitform is attached. Bohrwerkzeug nach Anspruch 4, dadurch gekennzeichnet, dass die weiteren Schneiden jeweils oder zT. einen eigenen Spanraum haben (Mehrlippenwerkzeug).Drilling tool according to claim 4, characterized in that that the further cutting each or partially. a separate chip room have (multi-lip tool). Bohrwerkzeug nach einem der vorangegangenen Ansprüche, bei dem der Schaft nicht zylindrisch ist und/oder eine beliebige Spannfläche besitzt.Drilling tool according to one of the preceding claims, in the shaft is not cylindrical and / or has any clamping surface. Bohrwerkzeug nach einem der vorangegangenen Ansprüche, bei dem der Stirnanschliff eine beliebige andere Ausführung aufweist.Drilling tool according to one of the preceding claims, in the Stirnanschliff has any other design.
DE200810051573 2008-10-07 2008-10-07 Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips Withdrawn DE102008051573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200810051573 DE102008051573A1 (en) 2008-10-07 2008-10-07 Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810051573 DE102008051573A1 (en) 2008-10-07 2008-10-07 Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips

Publications (1)

Publication Number Publication Date
DE102008051573A1 true DE102008051573A1 (en) 2010-04-08

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DE200810051573 Withdrawn DE102008051573A1 (en) 2008-10-07 2008-10-07 Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips

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DE (1) DE102008051573A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140023449A1 (en) * 2011-04-05 2014-01-23 Kenth-Ove Jonsson Cutting head comprising a drill tip and a drill having such a cutting head
US20170361384A1 (en) * 2016-06-15 2017-12-21 Hanita Metal Works Ltd. Fluted cutting tool configuration and method therefor
WO2022209460A1 (en) * 2021-03-30 2022-10-06 本田技研工業株式会社 Cutting tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239236A1 (en) * 1992-11-21 1994-05-26 Krupp Widia Gmbh Cutting insert
WO1996018472A1 (en) * 1994-12-10 1996-06-20 Kennametal Hertel Ag Werkzeuge + Hartstoffe Drilling tool for drilling in solid metal
US5688083A (en) * 1993-05-20 1997-11-18 Iscar Ltd. Drilling tool and an indexing cutting insert for use therein
DE19903276A1 (en) * 1999-01-28 2000-08-10 Maier Kg Andreas Machining tool for drilling, grinding etc., with swarf-breaker, cutting part and rest together forming connecting plate fixed to base body of tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239236A1 (en) * 1992-11-21 1994-05-26 Krupp Widia Gmbh Cutting insert
US5688083A (en) * 1993-05-20 1997-11-18 Iscar Ltd. Drilling tool and an indexing cutting insert for use therein
WO1996018472A1 (en) * 1994-12-10 1996-06-20 Kennametal Hertel Ag Werkzeuge + Hartstoffe Drilling tool for drilling in solid metal
DE19903276A1 (en) * 1999-01-28 2000-08-10 Maier Kg Andreas Machining tool for drilling, grinding etc., with swarf-breaker, cutting part and rest together forming connecting plate fixed to base body of tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patentanspruch 6 und 7 beinhalten in Zusammenhang mit Patentanspruch 1 keine nacharbeitbare Lehre *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140023449A1 (en) * 2011-04-05 2014-01-23 Kenth-Ove Jonsson Cutting head comprising a drill tip and a drill having such a cutting head
US20170361384A1 (en) * 2016-06-15 2017-12-21 Hanita Metal Works Ltd. Fluted cutting tool configuration and method therefor
US10661362B2 (en) * 2016-06-15 2020-05-26 Kennametal Inc. Fluted cutting tool configuration and method therefor
WO2022209460A1 (en) * 2021-03-30 2022-10-06 本田技研工業株式会社 Cutting tool

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Owner name: WOLF WERKZEUGTECHNOLOGIE GMBH, DE

Free format text: FORMER OWNER: WOLF, HORST, 66539 NEUNKIRCHEN, DE

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