DE4128028A1 - Spiral fluted reamer - has two offset coolant holes running through reamer and breaking through flutes to produce apertures for coolant - Google Patents

Spiral fluted reamer - has two offset coolant holes running through reamer and breaking through flutes to produce apertures for coolant

Info

Publication number
DE4128028A1
DE4128028A1 DE19914128028 DE4128028A DE4128028A1 DE 4128028 A1 DE4128028 A1 DE 4128028A1 DE 19914128028 DE19914128028 DE 19914128028 DE 4128028 A DE4128028 A DE 4128028A DE 4128028 A1 DE4128028 A1 DE 4128028A1
Authority
DE
Germany
Prior art keywords
coolant
reamer
flutes
tool
offset
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.)
Granted
Application number
DE19914128028
Other languages
German (de)
Other versions
DE4128028C2 (en
Inventor
Alfred Mueller
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.)
Individual
Original Assignee
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 DE19914128028 priority Critical patent/DE4128028C2/en
Publication of DE4128028A1 publication Critical patent/DE4128028A1/en
Application granted granted Critical
Publication of DE4128028C2 publication Critical patent/DE4128028C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/006—Reaming tools with means for lubricating or cooling

Landscapes

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

Abstract

The reamer is in the form of a fully hardened round bar (1,2) with spiral lutes (3) ground in the sizing diameter (D). Running through the length of the reamer are two diametrically opposite coolant holes (4). These are offset from the axis far enough to cause the sides of the holes to break through into the flutes, thus producing apertures (4a) through which the coolant can flow to the cutting region. ADVANTAGE - Improve reamer performance and longer tool life.

Description

Die Erfindung bezieht sich auf ein Reibwerkzeug zum Ver­ feinern der Oberfläche von Lochwandungen bzw. zum Ver­ bessern der Maßgenauigkeit von Bohrungen und zwar im vorliegenden Falle speziell auf eine Werkzeugausgestal­ tung bestehend aus einem Vollhartmetallstab mit schrau­ benförmig in den Führungsdurchmesser eingeschliffenen Spannuten sowie mindestens einem das Werkzeug in seiner Längserstreckung durchsetzenden Kühlmittelkanal.The invention relates to a reaming tool for Ver refine the surface of perforated walls or for ver improve the dimensional accuracy of bores in present case specifically on a tool design tungsten carbide rod with screw  grinded into the guide diameter Flutes as well as at least one tool in its Coolant channel penetrating longitudinally.

Werkzeuge der zuvor beschriebenen Gattung gab es bis­ lang nur mit einem zumeist zentrisch die Werkzeuglängs­ achse durchsetzenden Kühlmittelkanal und stirnseitiger Öffnung desselben an der Werkzeugsohle. Der Nachteil hierbei war eine nur ungenügende Kühlmittelzufuhr und somit ein nicht voll befriedigendes Arbeitsergebnis samt geringer Werkzeugstandzeit.Tools of the type described above existed until long only with a mostly centric tool length coolant channel penetrating the axis and face Opening of the same on the tool sole. The disadvantage there was an insufficient supply of coolant and thus a not completely satisfactory work result together with low tool life.

Die Aufgabe der vorliegenden Erfindung besteht deshalb auch darin, gerade die beiden zuvor letztgenannten Nach­ teile durch eine neue Gestaltung solcher Vollhartmetall­ reibwerkzeuge in einfacher Weise zu beheben.The object of the present invention is therefore also in it, just the two last mentioned last divide by a new design of such solid carbide to fix friction tools in a simple way.

Gelöst wird diese Aufgabe dabei vor allem dadurch, daß nunmehr der Kühlmittelkanal seitlich zur Mittelachse des Werkzeugstabs versetzt angeordnet ist und im Bereich der Spannuten seitliche Öffnungen aufweist, wobei sich als besonders vorteilhaft erwiesen hat die Anordnung mindestens zweier spiegelbildlich zur Mittelachse des jeweiligen Werkzeugs liegender Kühlmittelkanäle, die zur Bildung der seitlichen Öffnungen durch die Spannuten auf deren voller Länge seitlich angeschnitten sind. Hierdurch ist nunmehr erstmals bei Werkzeugen, die nach den Merkmalen des Oberbegriffs des Patentanspruchs 1 aufgebaut sind eine optimale Kühlmittelzufuhr über den gesamten Arbeitsbereich gegeben.This task is solved primarily by the fact that now the coolant channel laterally to the central axis of the tool bar is arranged offset and in the area the flutes has lateral openings, whereby the arrangement has proven to be particularly advantageous at least two mirror images of the central axis of the respective tool lying coolant channels that for Formation of the lateral openings through the flutes  are cut to the side along their full length. This is the first time for tools that according to the features of the preamble of the claim 1 are built up an optimal coolant supply given the entire work area.

In einer Zeichnung ist die neue Lösung zudem anhand eines Ausführungsbeispiels im Detail noch näher dar­ gestellt.The new solution is also shown in a drawing of an embodiment in more detail posed.

Es zeigen:Show it:

Fig. 1 das neue Reibwerkzeug in Ansicht und Fig. 1 the new reaming tool in view and

Fig. 2 eine Stirnansicht zu Fig. 1 auf die Werkzeugsohle. Fig. 2 is an end view of Fig. 1 on the tool sole.

Das dargestellte Reibwerkzeug besteht in seinem Grund­ aufbau aus einem Vollhartmetallstab 1, 2 mit schrauben­ förmig in den Führungsdurchmesser "D" eingeschliffenen Spannuten 3 und den beiden das Werkzeug in seiner Längs­ erstreckung durchsetzenden Kühlmittelkanälen 4. Letztere liegen hierbei spiegelbildlich um ein Maß "x" zur Mit­ telachse "M" des Werkzeugstabs 1, 2 versetzt und weisen jeweils im Bereich der Spannuten 3 auf deren vollem Län­ genbereich "L" seitliche Öffnungen auf, die durch "Anschneiden" beim Schleifen der Spannuten gebildet wor­ den sind. Vorgesehen ist letztlich noch, daß die Kühl­ mittelkanäle 4 an der nutseitigen Werkzeugstirnseite 2a ebenfalls eine Öffnung 4b aufweisen.The reaming tool shown consists in its basic structure of a solid carbide rod 1 , 2 with screw-shaped grooves 3 in the guide diameter "D" and the two coolant channels 4 penetrating the tool in its longitudinal extension. The latter are a mirror image of a dimension "x" to the center axis "M" of the tool bar 1 , 2 offset and each have in the area of the flutes 3 on their full Län gene range "L" side openings through "cutting" when grinding the Chip flutes were formed. It is ultimately provided that the cooling medium channels 4 on the nut-side tool face 2 a also have an opening 4 b.

BezugsziffernverzeichnisList of reference numbers

1 Vollhartmetallstab (Kopfteil)
2 Vollhartmetallstab (Schaft)
2a Stirnseite (nutseitig)
3 Spannut
4 Kühlmittelkanal
4a seitliche Öffnung
4b stirnseitige Öffnung
D Führungsdurchmesser
L Länge des Spannutenbereichs
M Mittelachse
x Seitenversatz der Kühlmittelkanäle 1 solid carbide rod (head part)
2 solid carbide rod (shaft)
2 a front side (nut side)
3 flute
4 coolant channel
4 a side opening
4 b front opening
D guide diameter
L length of the flute area
M central axis
x lateral offset of the coolant channels

Claims (3)

1. Reibwerkzeug zum Verfeinern der Oberfläche von Lochwan­ dungen bzw. zum Verbessern der Maßgenauigkeit von Boh­ rungen, bestehend aus einem Vollhartmetallstab (1, 2) mit schraubenförmig in den Führungsdurchmesser (D) einge­ schliffenen Spannuten (3) sowie mindestens einem das Werkzeug in seiner Längserstreckung durchsetzenden Kühlmittelkanal (4) dadurch gekennzeichnet, daß der Kühlmittelkanal (4) seitlich zur Mittelachse (M) des Werkzeugstabs (1, 2) versetzt (x) ange­ ordnet ist und im Bereich der Spannuten (3) seit­ liche Öffnungen (4a) aufweist.1.Reaming tool for refining the surface of perforations or for improving the dimensional accuracy of bores, consisting of a solid carbide rod ( 1 , 2 ) with helically machined flutes ( 3 ) and at least one the tool in its longitudinal extension passing through the coolant channel (4), characterized in that the coolant channel (4) laterally to the center axis (M) of the tool rod (1, 2) offset (x) being arranged and in the region of the flutes (3) since Liche openings (4 a) having. 2. Reibwerkzeug nach Anspruch 1, gekennzeichnet durch Anordnung mindestens zweier spiegelbildlich zur Mittel­ achse (M) des jeweiligen Werkzeugs (1, 2) liegender Kühlmittelkanäle (4), die zur Bildung der seitlichen Öffnungen (4a) durch die Spannuten auf deren voller Länge (L) seitlich angeschnitten sind.2. Reaming tool according to claim 1, characterized by the arrangement of at least two mirror images of the central axis (M) of the respective tool ( 1 , 2 ) lying coolant channels ( 4 ) which form the lateral openings ( 4 a) through the flutes on their full length (L) are cut on the side. 3. Reibwerkzeug nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Kühlmittelkanäle (4) an der nutseitigen Werk­ zeugstirnseite (2a) ebenfalls eine Öffnung (4b) aufweisen.3. Reaming tool according to claims 1 and 2, characterized in that the coolant channels ( 4 ) on the nut side tool end face ( 2 a) also have an opening ( 4 b).
DE19914128028 1991-08-23 1991-08-23 Reaming tool with coolant supply Expired - Fee Related DE4128028C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914128028 DE4128028C2 (en) 1991-08-23 1991-08-23 Reaming tool with coolant supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914128028 DE4128028C2 (en) 1991-08-23 1991-08-23 Reaming tool with coolant supply

Publications (2)

Publication Number Publication Date
DE4128028A1 true DE4128028A1 (en) 1993-02-25
DE4128028C2 DE4128028C2 (en) 1994-06-30

Family

ID=6438980

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914128028 Expired - Fee Related DE4128028C2 (en) 1991-08-23 1991-08-23 Reaming tool with coolant supply

Country Status (1)

Country Link
DE (1) DE4128028C2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6045301A (en) * 1995-07-14 2000-04-04 Kennametal Hertel Ag Werkzeuge +Hartstoffe Drill with cooling-lubricant channel
EP1310325A1 (en) * 2001-11-09 2003-05-14 Techspace Aero S.A. Tool for unblocking and checking the coolant passages of cutting tools
US6575672B1 (en) 1997-05-12 2003-06-10 Hartmetallwerkzeugfabrik Andreas Maier Gmbh Superfinishing tool
EP1561535A1 (en) * 2004-02-06 2005-08-10 Ford Global Technologies, LLC Cutting tool and method for using said cutting tool
US7290965B2 (en) 2002-05-17 2007-11-06 Jorg Guhring Tool, method, and apparatus for removing burrs from bores
WO2011117319A1 (en) * 2010-03-25 2011-09-29 Gühring Ohg Chip breaker system, cooling channel, cooling channel system and high-speed reamer comprising at least one thereof
WO2013043877A1 (en) * 2011-09-23 2013-03-28 Burford Dwight A Mandrel tool probe for friction stir welding
WO2016093186A1 (en) * 2014-12-12 2016-06-16 三菱重工工作機械株式会社 Grinding tool and manufacturing method therefor
US9623489B2 (en) 2014-06-12 2017-04-18 Kennametal Inc. Rotary tool and method for manufacturing a rotary tool
US9919389B2 (en) 2012-03-16 2018-03-20 Audi Ag Method and tool for producing an exact-fit cylindrical bore by removal of material from an existing bore with a finishing allowance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19531810A1 (en) * 1995-08-30 1997-03-06 Reime Ernst Gmbh Co Kg Taps or milling cutters

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348874A (en) * 1943-03-22 1944-05-16 Rudolf W Andreasson Oilhole drill
US3199382A (en) * 1962-12-26 1965-08-10 Rudolf W Andreasson Reamer with reinforced cooled shank
DE1291170B (en) * 1962-04-10 1969-03-20 Renault Drilling tool with attached cutting edge
US3591302A (en) * 1969-05-08 1971-07-06 Detroit Reamer & Tool Co Rotary tool for metal removal
US4072438A (en) * 1976-07-26 1978-02-07 Trw Inc. Insert type drill and insert therefor
DE3314349A1 (en) * 1983-04-20 1984-10-25 Gühring, Gottlieb, 7470 Albstadt Bore-finishing tool
EP0215144A1 (en) * 1985-09-16 1987-03-25 Dihart AG Reamer with cooling provision
DE8901178U1 (en) * 1989-02-03 1989-03-23 Ringfeder Gmbh, 4150 Krefeld Taps

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348874A (en) * 1943-03-22 1944-05-16 Rudolf W Andreasson Oilhole drill
DE1291170B (en) * 1962-04-10 1969-03-20 Renault Drilling tool with attached cutting edge
US3199382A (en) * 1962-12-26 1965-08-10 Rudolf W Andreasson Reamer with reinforced cooled shank
US3591302A (en) * 1969-05-08 1971-07-06 Detroit Reamer & Tool Co Rotary tool for metal removal
US4072438A (en) * 1976-07-26 1978-02-07 Trw Inc. Insert type drill and insert therefor
DE3314349A1 (en) * 1983-04-20 1984-10-25 Gühring, Gottlieb, 7470 Albstadt Bore-finishing tool
EP0215144A1 (en) * 1985-09-16 1987-03-25 Dihart AG Reamer with cooling provision
DE8901178U1 (en) * 1989-02-03 1989-03-23 Ringfeder Gmbh, 4150 Krefeld Taps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Firmenschrift: MAPAL-Einmesser-Reibahle 7000 Werkstücke aus 9 S Mu 22, Fabrik für Präzisionswerkzeuge Dr.Kress KG, 7080 Aalen *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6045301A (en) * 1995-07-14 2000-04-04 Kennametal Hertel Ag Werkzeuge +Hartstoffe Drill with cooling-lubricant channel
US6575672B1 (en) 1997-05-12 2003-06-10 Hartmetallwerkzeugfabrik Andreas Maier Gmbh Superfinishing tool
EP1310325A1 (en) * 2001-11-09 2003-05-14 Techspace Aero S.A. Tool for unblocking and checking the coolant passages of cutting tools
US7290965B2 (en) 2002-05-17 2007-11-06 Jorg Guhring Tool, method, and apparatus for removing burrs from bores
EP1561535A1 (en) * 2004-02-06 2005-08-10 Ford Global Technologies, LLC Cutting tool and method for using said cutting tool
WO2011117319A1 (en) * 2010-03-25 2011-09-29 Gühring Ohg Chip breaker system, cooling channel, cooling channel system and high-speed reamer comprising at least one thereof
WO2013043877A1 (en) * 2011-09-23 2013-03-28 Burford Dwight A Mandrel tool probe for friction stir welding
US8579180B2 (en) 2011-09-23 2013-11-12 Dwight A. Burford Mandrel tool probe for friction stir welding having physically-separate spiraled surfaces
US9919389B2 (en) 2012-03-16 2018-03-20 Audi Ag Method and tool for producing an exact-fit cylindrical bore by removal of material from an existing bore with a finishing allowance
US9623489B2 (en) 2014-06-12 2017-04-18 Kennametal Inc. Rotary tool and method for manufacturing a rotary tool
WO2016093186A1 (en) * 2014-12-12 2016-06-16 三菱重工工作機械株式会社 Grinding tool and manufacturing method therefor
JPWO2016093186A1 (en) * 2014-12-12 2017-11-30 三菱重工工作機械株式会社 Grinding wheel tool and manufacturing method thereof
US10543583B2 (en) 2014-12-12 2020-01-28 Mitsubishi Heavy Industries Machine Tool Co., Ltd. Grinding tool and manufacturing method therefor

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Publication number Publication date
DE4128028C2 (en) 1994-06-30

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee