DE1752365A1 - Coolant feeder for twist drills and similar tools - Google Patents

Coolant feeder for twist drills and similar tools

Info

Publication number
DE1752365A1
DE1752365A1 DE19681752365 DE1752365A DE1752365A1 DE 1752365 A1 DE1752365 A1 DE 1752365A1 DE 19681752365 DE19681752365 DE 19681752365 DE 1752365 A DE1752365 A DE 1752365A DE 1752365 A1 DE1752365 A1 DE 1752365A1
Authority
DE
Germany
Prior art keywords
coolant
drill
holder
twist
feeder
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.)
Pending
Application number
DE19681752365
Other languages
German (de)
Inventor
Manfred Birk
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 DE19681752365 priority Critical patent/DE1752365A1/en
Priority to AT326269A priority patent/AT286066B/en
Priority to CH520669A priority patent/CH502151A/en
Priority to GB08747/69A priority patent/GB1256112A/en
Priority to US820741A priority patent/US3597103A/en
Priority to SE6307/69A priority patent/SE341581B/xx
Priority to NL6906920A priority patent/NL6906920A/xx
Priority to ES367530A priority patent/ES367530A1/en
Priority to FR6915676A priority patent/FR2011834A1/fr
Publication of DE1752365A1 publication Critical patent/DE1752365A1/en
Pending 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
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
    • B23Q1/0027—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
    • B23Q1/0036—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained one of those parts being a 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
    • Y10T408/455—Conducting channel extending to end of Tool

Landscapes

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

Description

PATENTPATENT

DIPL.ING. H. LEINWEBER dipping. H. ZIMMERMANNDIPL.ING. H. LEINWEBER dipping. H. ZIMMERMANN

Postscheck-Konto:Postal check account:
München 22045Munich 22045 Bank-Konto:Bank account:
Dresdner Bank AG.Dresdner Bank AG.
Manchen 2, Marlenplatz, Kto.-Nr. »27MManchen 2, Marlenplatz, account no. “27M Telefon Tel.-Adr.
MIM*·« (MII) 2<1·Ι9 Uhtpat Mfiiidraii Telephone Tel.-Adr.
MIM * · « (MII) 2 <1 · Ι9 Uhtpat Mfiiidraii 17523651752365 LwAgTruck t MflndMn 2, Rosental 7, 2.AuiB. t MflndMn 2, Rosental 7, 2.Aui B. (Kustermann-Passaga)(Kustermann Passaga)

15. Mai 1968May 15, 1968

Firma Gottlieb Gühring, Ebingen/Württ.Gottlieb Gühring company, Ebingen / Württ. Kühlmittelzuführer für Spiralbohrer und ähnliche WerkzeugeCoolant feeder for twist drills and similar tools

Die Erfindung betrifft einen Kühlmittelzuführer für Spiralbohrer, Spiralsenker, Aufbohrer und ähnliche Werkzeuge, die im Bohrersteg verlaufende Kühlmittelkanäle aufweisen, mit einem den Kühlmittelschlauchanschluss tragenden, dem Spiralbohrer zugeordneten Halter. Es ist bekannt, Spiralbohrer mit einer zentralen Bohrung im Schaft zu versehen, die über schräge Bohrungen mit den Kühlmittelkanälen verbunden ist. Dabei wird das Kühlmittel der zentralen Bohrung entweder durch die hohlgebohrte Spindel oder über eineflzwischen den Bohrer und die Spindel eingefügten Zuführer geleitet. Im ersteren Falle ist eine besondere, kostspielige Bohrmaschinenausbildung für die Kühlmittelzufuhr Voraussetzung. Die letztere Anordnung hat den Nachteil, dass die Kraglänge, das ist die Entfernung der zerspanenden Bohrerspitze vom vorderen Spindellager, vergrössert wird, wodurch die Torsions- und Biegefestigkeit wesentlich verschlechtert wird.The invention relates to a coolant feeder for twist drills, spiral countersinks, reamers and similar tools that have coolant channels running in the drill web, with a holder that carries the coolant hose connection and is assigned to the twist drill. It is known to use twist drills with a to provide central bore in the shaft, which is connected to the coolant channels via inclined bores. It will The coolant of the central bore is passed either through the hollow-bored spindle or via a feeder inserted between the drill and the spindle. In the former case there is one Special, expensive drill training for the coolant supply is a prerequisite. The latter arrangement has the Disadvantage is that the cantilever length, i.e. the distance between the cutting drill tip and the front spindle bearing, is increased becomes, whereby the torsional and flexural strength is significantly impaired.

109821/0438109821/0438

-2--2-

Der Erfindung liegt die Aufgabe zugrunde, einen Kühlmittelzuführer zu schaffen, der die Kraglänge nicht vergrössert,The invention is based on the object of creating a coolant feeder that does not increase the cantilever length,

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass der Halter den Spiralbohrer im zwischen dem Ende der Spannuten und dem Beginn des Schaftes befindlichen Bereich umgibt, in den die Kühlmittelkanäle münden.According to the invention, this object is achieved in that the holder surrounds the twist drill in the area between the end of the flutes and the beginning of the shank, into which the coolant channels open.

ZweckmäaaLgerweise ist der vom Halter umgebene Bereich des Spiralbohrers mit einer äusseren Ringnut versehen, von der die Kühlmittelkanäle ausgehen. Dabei ist es vorteilhaft, wenn die an dieser Stelle vorgesehene Kühlmittelzuführungseinriohtung eine der Bohrerringnut gegenüberliegende Eindrehung aufweist, durch die dem sich im Zuführer drehenden Bohrer das Kühlmittel zugeleitet wird.The area surrounded by the holder is expedient of the twist drill with an outer ring groove from which the coolant channels extend. It is advantageous to when the coolant supply device provided at this point has a recess opposite the drill ring groove, through which the drill rotating in the feeder the coolant is supplied.

Als besonders vorteilhaft im Hinblick auf den Einsatz eines einzigen Kühlmittelzuführers in Verbindung mit Spiralbohrern oder ähnliohen Werkzeugen untersohiedlicher Abmessungen hat es sioh herausgestellt, wenn die Kühlmittelkanäle unmittelbar oder über eine oder mehrere Radialbohrungen eines mit dem Spiralbohrer fest verbundenen Ringes mit der Kühlmittelzufuhrbohrung des Halters in Verbindung stehen. Infolgedessen brauoht nioht für jeden Bohrerdurohmesser auch ein diesem Mass entsprechender Kühlmittelzuführer vorhanden zu sein.It has proven to be particularly advantageous with regard to the use of a single coolant feeder in connection with twist drills or similar tools of different dimensions if the coolant channels are directly or via one or more radial bores with the twist drill firmly connected ring with the coolant supply bore of the holder in connection. As a result, there is no need for a coolant feeder that corresponds to this size for every drill diameter.

-3--3-

109821/0438109821/0438

Ein und derselbe Zuführer ist vielmehr für eine beliebig grosse Anzahl von Bohrerdurchmessern verwendbar. Jeder Spiralbohrer weist somit einen mit ihm verbundenen Ring auf, dessen Aussendurchmesser dem Durchmesser der Halterbohrung entspricht. Je grosser der Durchmesser des Spiralbohrers, desto geringer ist die Stärke des Bings, d.h.seine Aussendurchmesser-Innendurchioesser-Differenz. Im Extremfall ist somit ein Bohrer in die Halterbohrung einsetzbar, der aufgrund seines mit dem Durchmesser der Halterbohrung übereinstimmenden Aussendurchmessers mit keinem Ring mehr verbunden zu sein braucht.Rather, one and the same feeder can be used for any number of drill diameters. Every twist drill thus has a ring connected to it, the outer diameter of which corresponds to the diameter of the holder bore. The larger the diameter of the twist drill, the smaller the thickness of the bing, i.e. the difference between the outer and inner diameters. In the extreme case, a drill can be used in the holder bore, which due to its with the Diameter of the holder bore of the same outside diameter no longer needs to be connected to any ring.

Auf der Zeichnung ist ein Kühlmittelzuführer gemäss der Erfindung beispielsweise veranschaulicht.A coolant feeder according to the invention is illustrated, for example, in the drawing.

' Der dargestellte Spiralbohrer 1 hat auf seinen zwei Stegrücken je einen Kühlmittelkanal in Form eines eingepressten Kühlmittelrohres 2. Der Kühlmittelkanal könnte auch durch Kühlmittelbohrungen gebildet sein. Auf einem zylindrischen Abschnitt 3 ist er mit einer äusseren Ringnut 4 versehen. An den Abschnitt 3 schliesst sich der Morsekonus 5 an. Auf dem Abschnitt 3 ist ein Ring 6 befestigt, beispielsweise durch Kleben, der eine äussere Ringnut 8 aufweist, die über eine oder zwei radiale Bohrungen 7 mit der Ringnut 4 des Bohrers 1 verbunden ist. Die Enden der Kühlmittelrührcnen 2 münden unmittelbar in die äussere Ringnut 4 des Bohrers. Der Ring 6'The illustrated twist drill 1 has on its two One coolant channel each in the form of a pressed-in coolant tube 2. The coolant channel could also pass through Be formed coolant holes. It is provided with an outer annular groove 4 on a cylindrical section 3. At Section 3 is followed by Morse taper 5. On the section 3 a ring 6 is attached, for example by Glue, which has an outer annular groove 8 that connects to the annular groove 4 of the drill 1 via one or two radial bores 7 connected is. The ends of the coolant stirrers 2 open directly into the outer ring groove 4 of the drill. The ring 6

-4-109821/fU38-4-109821 / fU38

sitzt drehbar in einem gegen Drehung gesicherten Halter 10, der mit einer zur äusseren Ringnut 8 des Binges 6 führenden Bohrung 11 mit einem Kühlmittelschlauohanschluss 12 versehen ist.sits rotatably in a holder 10 secured against rotation, the one leading to the outer annular groove 8 of the bing 6 Provide bore 11 with a coolant hose connection 12 is.

Bei Gebrauch wird das über den Schlauchanschluss 12 zugeführte Kühlmittel über die verschiedenen Bohrungen durch den Ring 6 hinduroh in die Kühlmittelröhrchen 2 gedrückt, z.B. mit 3 atü.During use, the coolant supplied via the hose connection 12 is passed through the various bores the ring 6 pressed into the coolant tube 2, e.g. with 3 atm.

Durch den Wegfall eines zwischen Spindel und Bohrer einzuschaltenden Kühlmittelzuführers beansprucht die neue Art der Kühlmittelzuführung eine vergleichsweise geringere Kraglänge. Auch wird die Herstellung des zum neuen Zuführer gehörigen, ebenfalls erfindungsgemässen Spiralbohrers wesentlich vereinfacht, weil im Spiralbohrer keine Anschlussbohrungen mehr für die Kühlmittelkanäle erforderlich sind.By eliminating the need for a coolant supply between the spindle and the drill, the new type demands the coolant supply has a comparatively shorter cantilever length. The manufacture of the twist drill according to the invention belonging to the new feeder also becomes essential simplified because no connection holes are required for the coolant channels in the twist drill.

-5--5-

109821/0438109821/0438

Claims (6)

Patentansprüche:Patent claims: 1. Kühlmittelzuführer für Spiralbohrer und ähnliche Werkzeuge, die im Bohrersteg verlaufende Kühlmittelkanäle aufweisen, mit einem den Kühlmittelsohlauohanschluss tragenden, dem Spiralbohrer zugeordneten Halter, dadurch gekennzeichnet, dass der Halter (10) den Spiralbohrer (1) im zwischen dem Ende der Spannuten und dem Beginn des Schaftes befindlichen Bereich umgibt, in dem die Kühlmittelkanäle (2) münden.1. Coolant feeder for twist drills and the like Tools, which have coolant channels running in the drill web, with a holder carrying the coolant hose connection and assigned to the twist drill, characterized in that the holder (10) surrounds the twist drill (1) in the area located between the end of the flutes and the beginning of the shank, in which the coolant ducts (2) flow out. 2. Kühlmittelzuführer naoh Anspruoh 1, dadurch gekennzeichnet, dass der vom Halter (10) umgebene Bereich des Spiralbohrers (1) mit einer äusseren Ringnut (4) versehen ist, von der die Kuhlmittelkanäle (2) ausgehen.2. Coolant feeder naoh Anspruoh 1, characterized in that the area of the twist drill (1) surrounded by the holder (10) is provided with an outer annular groove (4), from which the coolant ducts (2) extend. 3. Kühlmittelzuführer nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kühlmittelkanäle (2) unmittelbar oder über eine oder mehrere Radialbohrungen (7) eines mit dem Spiralbohrer fest verbundenen Ringes (6) mit der Kühlmittelzufuhrbohrung (11) des Halters (10) in Verbindung stehen.3. coolant feeder according to claim 1 or 2, characterized in that the coolant channels (2) directly or are connected to the coolant supply bore (11) of the holder (10) via one or more radial bores (7) of a ring (6) firmly connected to the twist drill. 4. Kühlmittelzuführer naoh Anspruoh 2, dadurch gekennzeichnet, dass die radialen Bohrungen (7) in einer äusseren Ringnut (8) des Rings (6) und/oder in einer inneren Ringnut (9) des Halters (10) münden, zu der die Bohrung (11) des Halters (10) führt.4. coolant feeder naoh Anspruoh 2, characterized in that the radial bores (7) in an outer Annular groove (8) of the ring (6) and / or open into an inner annular groove (9) of the holder (10) to which the bore (11) of the holder (10) leads. -6-109821/0438-6-109821 / 0438 5. Spiralbohrer und ähnliche Werkzeuge zur Verwendung mit dem Kühlmittelzufuhrer naoh einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die innerhalb der Stege verlaufenden Kühlmittelkanäle (2) in dem zylindrischen Bereich des Bohrerkörpers zwischen dem Ende der Spannuten und dem Beginn des Schaftes an die Oberfläche treten.5. Twist drills and similar tools for use with the coolant feeder naoh one of claims 1 to 4, characterized in that the coolant channels (2) running inside the webs are in the cylindrical region of the Drill body between the end of the flutes and the beginning of the shaft come to the surface. 6. Spiralbohrer und ähnliche Werkzeuge nach Anspruch 5, dadurch gekennzeichnet, dass die Kühlmittelkanäle (2) in einer im Bereich des Bohrerkörpers zwischen dem Ende der Spannuten und dem Beginn des Schaftes befindlichen äusseren Ringnut (4) enden.6. twist drills and similar tools according to claim 5, characterized in that the coolant channels (2) in one in the area of the drill body between the end of the flutes and the beginning of the shank, the outer annular groove (4) end up. 109821/0438109821/0438
DE19681752365 1968-05-15 1968-05-15 Coolant feeder for twist drills and similar tools Pending DE1752365A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19681752365 DE1752365A1 (en) 1968-05-15 1968-05-15 Coolant feeder for twist drills and similar tools
AT326269A AT286066B (en) 1968-05-15 1969-04-02 Twist drill or the like
CH520669A CH502151A (en) 1968-05-15 1969-04-03 Drilling tool with coolant connection
GB08747/69A GB1256112A (en) 1968-05-15 1969-04-11 Elongate rotary drill in combination with a collar and a connector for supply of coolant to a passage in the drill
US820741A US3597103A (en) 1968-05-15 1969-05-01 Chip-removing rotary tools
SE6307/69A SE341581B (en) 1968-05-15 1969-05-05
NL6906920A NL6906920A (en) 1968-05-15 1969-05-06
ES367530A ES367530A1 (en) 1968-05-15 1969-05-08 Chip-removing rotary tools
FR6915676A FR2011834A1 (en) 1968-05-15 1969-05-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752365 DE1752365A1 (en) 1968-05-15 1968-05-15 Coolant feeder for twist drills and similar tools

Publications (1)

Publication Number Publication Date
DE1752365A1 true DE1752365A1 (en) 1971-05-19

Family

ID=5692753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681752365 Pending DE1752365A1 (en) 1968-05-15 1968-05-15 Coolant feeder for twist drills and similar tools

Country Status (9)

Country Link
US (1) US3597103A (en)
AT (1) AT286066B (en)
CH (1) CH502151A (en)
DE (1) DE1752365A1 (en)
ES (1) ES367530A1 (en)
FR (1) FR2011834A1 (en)
GB (1) GB1256112A (en)
NL (1) NL6906920A (en)
SE (1) SE341581B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419428A1 (en) * 1989-09-18 1991-03-27 SKF Tools AB Cutting tools such as drills, reamers, end mills and the like
DE102008020740A1 (en) * 2008-04-25 2009-10-29 Bernd Sievert Cooling device for coolant application of tool, has line, which forms flowing path between inlet end of line and application units arranged at outlet end

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2602238A1 (en) * 1976-01-22 1977-08-04 Bosch Gmbh Robert DRILL BIT
DE8012959U1 (en) * 1980-05-13 1981-11-12 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim Cooling device for rotating cutting tools for metal cutting, in particular for drilling tools
DE3261142D1 (en) * 1981-08-17 1984-12-06 Bristol Erickson Ltd An attachment for fitting to a drive spindle of a machine
US5378091A (en) * 1992-06-17 1995-01-03 Makino Milling Machine Co., Ltd. Method and apparatus for machining a workpiece
US8807889B2 (en) * 2009-12-29 2014-08-19 Kennametal Inc. Rotary cutting tool having sealed margins and method of making same
US20160207122A1 (en) * 2015-01-15 2016-07-21 X'pole Precision Tools Inc. Blade fastening device having cuttign fluid guide grooves on a blade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580399A (en) * 1897-04-13 Peter j
US1028623A (en) * 1907-09-27 1912-06-04 Otis Elevator Co Air drill-socket.
US2510203A (en) * 1946-05-17 1950-06-06 Rudolf W Andreasson Drilling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419428A1 (en) * 1989-09-18 1991-03-27 SKF Tools AB Cutting tools such as drills, reamers, end mills and the like
DE102008020740A1 (en) * 2008-04-25 2009-10-29 Bernd Sievert Cooling device for coolant application of tool, has line, which forms flowing path between inlet end of line and application units arranged at outlet end

Also Published As

Publication number Publication date
US3597103A (en) 1971-08-03
FR2011834A1 (en) 1970-03-13
ES367530A1 (en) 1971-04-16
GB1256112A (en) 1971-12-08
AT286066B (en) 1970-11-25
SE341581B (en) 1972-01-10
CH502151A (en) 1971-01-31
NL6906920A (en) 1969-11-18

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