EP2470321A1 - Werkzeug - Google Patents

Werkzeug

Info

Publication number
EP2470321A1
EP2470321A1 EP10730402A EP10730402A EP2470321A1 EP 2470321 A1 EP2470321 A1 EP 2470321A1 EP 10730402 A EP10730402 A EP 10730402A EP 10730402 A EP10730402 A EP 10730402A EP 2470321 A1 EP2470321 A1 EP 2470321A1
Authority
EP
European Patent Office
Prior art keywords
inner channel
tool
insert
shaft
tool according
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Withdrawn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
EP10730402A
Other languages
German (de)
English (en)
French (fr)
Inventor
Arno Friedrichs
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
Publication of EP2470321A1 publication Critical patent/EP2470321A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/06—Drills with lubricating or cooling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/14—Cutters, for shaping with means to apply fluid to cutting tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
    • Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct

Definitions

  • the invention relates to a tool which has a shaft with a centrally arranged, continuous inner channel and an insert projecting into the inner channel and frictionally and / or positively connected to the shaft.
  • one-piece drilling tools which have a shaft and one or more inside the shaft tes rectilinear or spirally extending, serving as cooling channels inner channels.
  • cooling liquid is forced through the cooling channels in the direction of the tool head during operation to cool the working area of the drilling tool.
  • the object of the invention is to provide a new tool whose cooling is improved during operation.
  • This object is achieved by a tool having the features specified in claim 1.
  • a tool according to the invention has a shaft with a central, continuous inner channel and an insert projecting into the inner channel and frictionally and / or positively connected to the shaft, wherein the inner channel is provided with one or more widenings.
  • Advantageous embodiments and further developments of the invention are specified in the dependent claims.
  • the advantages of the invention are, in particular, that during the operating mode of the tool, a cooling liquid from the rear end of the shaft through the inner channel and the widenings of the inner channel in the direction of Häflä- che of the tool can be pressed.
  • the expansions mentioned can be introduced in a simple manner within the framework of the production of the shank. This is preferably done during the production of a blank by means of an extrusion process and / or using a broach, by means of which the widenings of the inner channel are introduced starting from an initially cylindrical inner channel, or by erosion.
  • the shank and the insert are preferably cylindrical, with the diameter of the shank being greater than the diameter of the insert.
  • the insert can be glued, soldered, shrunk or screwed to the shaft.
  • the shaft can be made of the same material as the insert or of another material.
  • the shank made of steel, hard metal, ceramic or plastic and the use of steel, hard metal or ceramic.
  • the widenings are preferably part-circular, rectangular or triangular in shape. The number of widenings is preferably 1, 2, 3, 4 or 5.
  • the tool is preferably a drilling tool or a milling tool, in particular for use in the micro-drilling area or in the dental area.
  • the widenings form the insert in a straight line or spirally surrounding channels. They can extend over the entire length of the inner channel or only a part of the entire length of the inner channel. Further advantageous features of the invention will become apparent from the following exemplary explanation with reference to FIGS. 1 shows a sketch of a longitudinal sectional view of a tool according to a first exemplary embodiment of the invention
  • FIG. 2 shows a sketch of a longitudinal sectional illustration of a tool according to a second exemplary embodiment of the invention
  • FIG. 4 cross-sectional representations for explaining tools with rectangular widenings of the inner channel
  • FIG. 5 cross-sectional views for explaining tools with triangular widenings of the inner channel and Figure 6 sketches of embodiments for equipped with inner channels inserts.
  • FIG. 1 shows a sketch of a longitudinal sectional view of a tool according to a first embodiment of the invention.
  • a drilling tool which is intended for use in the micro drill field or in dental technology.
  • This drilling tool has a shaft 1, a centrally disposed inside the shaft 1, continuous inner channel 2, a projecting into the inner channel 2, with the shaft 1 positively and / or positively connected insert 3 and one or more widenings 4 of the inner channel 2.
  • the overall length of the gate i and thus also of the inner channel 2 is 11.
  • the widenings 4 are straight and extend over the entire length of the shank 1. The length of the widenings 4 is therefore also 11.
  • Shaft 1 is connected to the insert 3 is designated in the figure 1 with 13.
  • the diameter of the shaft 1 is denoted by dl. It can be seen from FIG. 1 that the diameter d 1 of the shank 1 is greater than the diameter d 2 of the insert 3.
  • the inner channel 2 and the widenings 4 are preferably introduced into a tool blank during the production of the shank 1 by an extrusion press method.
  • the inner channel 2 and the widenings 4 can also be introduced by means of a broach into a tool blank or produced by erosion.
  • the insert 3 is inserted into this shaft 1 and connected to the shaft 1 in a positive-locking and / or force-locking manner, for example by soldering, gluing, bonding shrink or a verse roar.
  • the cutting edge located at the front end of the insert may be completed before or after attachment of the insert to the shaft.
  • 2 shows a sketch of a longitudinal sectional view of a tool according to a second embodiment of the invention.
  • a drilling tool which is intended for use in micro drill or in dental technology.
  • the tool shown in FIG. 2 largely coincides with the tool shown in FIG. In the following, therefore, only the differences from the tool shown in FIG. 1 will be explained.
  • the widenings 4 do not extend over the entire length 11 of the inner channel 2, but only over a partial area 12 of the entire
  • This part 12 comprises the part 13 of the entire length of the inner channel 2, in which the shaft 1 is connected to the insert 3, and an adjoining part 14 of the entire length of the inner channel second
  • the inner channel 2 of the shaft 1 is introduced by an extrusion tool or by means of a Aus Hurmtechnikmaschinees in a blank. Thereafter, by means of a Aus Hurmtechnikmaschinees an introduction of the widenings 4 to form a blank, which has the desired shape. This is then further processed to the desired end product, namely to a shank.
  • the insert 3 is inserted and connected to the shaft 1 positive and / or non-positively.
  • 3 shows a total of lunf cross-sectional views for explaining tools that have part-circular widening of the inner channel 2.
  • the tool shown in FIG. 3 a has a shank 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has a part-circular widening 4.
  • the tool shown in FIG. 3 b has a shank 1 in which a centrally arranged inner channel 2 is provided, the inner channel 2 having two part-circular widenings 4.
  • the tool shown in Figure 3c has a shaft 1, in which a centrally disposed inner channel 2 is provided, wherein the inner channel 2 has three part-circular widenings 4.
  • the tool shown in FIG. 3d has a shaft 1 in which a centrally disposed inner channel 2 is provided, wherein the inner channel 2 has four part-circular widenings 4.
  • the tool shown in Figure 3e has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has five part-circular expansions 4. Those edge regions of the inner recess 2 of the shank 1, on which no widenings 4 are provided, serve for the positive and / or non-positive connection of the shank with the insert.
  • FIG. 4 shows a total of five cross-sectional illustrations for explaining tools which have rectangular widenings of the inner channel 2.
  • the tool shown in FIG. 4 a has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel has a rectangular widening 4.
  • the tool shown in FIG. 4 b has a shank 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has two rectangular widenings 4.
  • the tool shown in Figure 4c has a shaft 1, in which a centrally disposed inner channel 2 is provided, wherein the inner channel 2 has three rectangular widenings 4.
  • the tool shown in FIG. 4 a has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has three rectangular widenings 4.
  • FIG. 4 d has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein ⁇ er inner channel 2 has four rectangular widenings 4.
  • the tool shown in FIG. 4e has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has five rectangular widenings 4. Those edge regions of the inner recess 2 of the shank 1, on which no widenings 4 are provided, serve for the positive and / or non-positive connection of the shank with the insert.
  • Figure 5 shows a total of five cross-sectional views for explaining tools having triangular widenings of the inner channel.
  • FIG. 5 a has a shank 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has a triangular widening 4.
  • the tool shown in FIG. 5b has a shaft 1, in which a centrally arranged inner channel 2 is provided, the inner channel 2 having two triangular widenings 4.
  • the tool shown in FIG. 5 c has a shank 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has three triangular widenings 4.
  • FIG. 5 d has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has four triangular extensions 4.
  • 5e has a shaft 1, in which a centrally arranged inner channel 2 is provided, wherein the inner channel 2 has five triangular widenings 4. Those edge regions of the inner recess 2 of the shank 1, on which no expansions 4 are provided, serve for positive and / or non-positive connection of the shank with the insert.
  • the tool is in each case a drilling tool.
  • the tool may also be a milling tool.
  • the shank of the tool and the use of the tool can be made of the same material or of different materials.
  • the shaft 1 is made of steel, hard metal, ceramic or plastic and the insert 3 made of steel, hard metal or ceramic.
  • the widenings 4 may be rectilinear as in the above embodiments and extend in the longitudinal direction of the cylindrical shaft. Alternatively, the widenings may surround the part of the insert 2 inserted into the shaft 1 in a spiral shape.
  • internal channels can also be provided in the insert 3 themselves, which serve as cooling channels during operation of the respective tool and through which the respective coolant flows.
  • These inner channels of the insert 3 may be spirally extending or rectilinear inner channels. Examples of such inner channels of the insert 3 are shown in FIG. 6 and designated there by the reference symbols 3a, 3b, 3c, 3d and 3e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
EP10730402A 2009-08-25 2010-06-21 Werkzeug Withdrawn EP2470321A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009043850A DE102009043850A1 (de) 2009-08-25 2009-08-25 Werkzeug
PCT/EP2010/058693 WO2011023428A1 (de) 2009-08-25 2010-06-21 Werkzeug

Publications (1)

Publication Number Publication Date
EP2470321A1 true EP2470321A1 (de) 2012-07-04

Family

ID=42752156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10730402A Withdrawn EP2470321A1 (de) 2009-08-25 2010-06-21 Werkzeug

Country Status (5)

Country Link
US (1) US20120163931A1 (enExample)
EP (1) EP2470321A1 (enExample)
JP (1) JP2013503046A (enExample)
DE (1) DE102009043850A1 (enExample)
WO (1) WO2011023428A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010002669A1 (de) * 2010-03-08 2011-09-08 Gühring Ohg Drehantreibbares spanabhebendes Werkzeug
GB201015541D0 (en) * 2010-09-17 2010-10-27 Element Six Ltd Twist drill assembly
DE102011016148B4 (de) * 2011-03-28 2024-06-06 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Werkzeug zur spanenden Bearbeitung eines Werkstücks mit seitlichem Kühlmittelaustritt und Halter für das Werkzeug
DE102013210355B4 (de) 2013-06-04 2022-11-17 Kennametal Inc. Zerspanungswerkzeug sowie Verfahren zur Herstellung eines Zerspanungswerkzeug
DE102014104192B3 (de) * 2014-03-26 2015-05-28 Hochschule Furtwangen Vorrichtung zur Aufnahme eines Werkzeugs
US10596634B2 (en) * 2015-06-30 2020-03-24 Seco Tools Ab Cutting tool with a nozzle with a coolant channel
EP3112062B1 (en) * 2015-06-30 2023-06-21 Seco Tools Ab A cutting tool
DE102017115668A1 (de) * 2017-07-12 2019-01-17 Kennametal Inc. Verfahren zur Herstellung eines Schneidwerkzeugs sowie Schneidwerkzeug
US20240109132A1 (en) 2022-09-29 2024-04-04 Iscar, Ltd. Rotary cutting tool having a central coolant passage non-circular in cross-section
US20240299130A1 (en) * 2023-03-06 2024-09-12 King Faisal University Endodontic tool with a rotating tip

Citations (2)

* Cited by examiner, † Cited by third party
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DE4115992A1 (de) * 1991-05-16 1992-11-19 Bilz Otto Werkzeug Spannzange fuer werkzeuge
EP0781616A1 (en) * 1995-12-28 1997-07-02 Daishowa Seiki Kabushiki Kaisha Collet

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US1940220A (en) * 1931-02-06 1933-12-19 Finkl & Sons Co Boring tool
US2847885A (en) * 1956-08-02 1958-08-19 Cleveland Twist Drill Co Deep hole drill
US3313186A (en) * 1964-07-02 1967-04-11 Utd Corp Method of affixing a tube to a tool body
US3591302A (en) * 1969-05-08 1971-07-06 Detroit Reamer & Tool Co Rotary tool for metal removal
GB2087949B (en) * 1980-11-24 1984-11-14 Padley & Venables Ltd Cutting tools
JPS61226231A (ja) * 1985-03-30 1986-10-08 Mitsubishi Metal Corp 油孔付き超硬ソリツドドリルの製造方法
JPH0247139U (enExample) * 1988-09-22 1990-03-30
JP2894924B2 (ja) * 1992-06-17 1999-05-24 株式会社牧野フライス製作所 切削加工方法および装置
US5378091A (en) * 1992-06-17 1995-01-03 Makino Milling Machine Co., Ltd. Method and apparatus for machining a workpiece
JPH0627046U (ja) * 1992-09-10 1994-04-12 株式会社日研工作所 工具への流体供給装置
US5311654A (en) 1992-09-25 1994-05-17 Cook Harold D Tool holder system and method of making
DE19821270A1 (de) * 1998-05-13 1999-11-18 Otto Bilz, Werkzeugfabrik Gmbh & Co Futter für drehantreibbare Werkzeuge, insbesondere Bohrer, Gewindebohrer o. dgl.
JP4108828B2 (ja) * 1998-06-30 2008-06-25 鉄治 溝口 切削油供給型工具ホルダ
US6394466B1 (en) * 1999-02-16 2002-05-28 Nikken Kosakusho Works Ltd. End mill chucking structure
US6200073B1 (en) * 1999-10-18 2001-03-13 Henry Chung Combination chamfering and milling tool
JP3749668B2 (ja) * 2001-01-30 2006-03-01 株式会社日研工作所 流体通路を備えた工具ホルダ
JP2003001511A (ja) * 2001-06-26 2003-01-08 Aisin Seiki Co Ltd セミドライ加工具およびセミドライ加工装置
JP2003017768A (ja) * 2001-06-28 2003-01-17 Kyocera Corp 積層型圧電素子及び噴射装置
US7785046B2 (en) * 2002-07-17 2010-08-31 Advanced Industries Tool coolant application and direction assembly
JP2005014115A (ja) * 2003-06-24 2005-01-20 Tungaloy Corp ドリル
SE526392C2 (sv) * 2003-08-28 2005-09-06 Seco Tools Ab Verktygsarrangemang och verktyg för spånavverkning där verktyget har en kanal av icke-cirkulärt tvärsnitt
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JP4840897B2 (ja) * 2004-10-20 2011-12-21 日立ビアメカニクス株式会社 工具位置決め装置及び加工部材

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Publication number Priority date Publication date Assignee Title
DE4115992A1 (de) * 1991-05-16 1992-11-19 Bilz Otto Werkzeug Spannzange fuer werkzeuge
EP0781616A1 (en) * 1995-12-28 1997-07-02 Daishowa Seiki Kabushiki Kaisha Collet

Non-Patent Citations (1)

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Title
See also references of WO2011023428A1 *

Also Published As

Publication number Publication date
WO2011023428A1 (de) 2011-03-03
US20120163931A1 (en) 2012-06-28
DE102009043850A1 (de) 2011-03-03
JP2013503046A (ja) 2013-01-31

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