US3597103A - Chip-removing rotary tools - Google Patents

Chip-removing rotary tools Download PDF

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Publication number
US3597103A
US3597103A US820741A US3597103DA US3597103A US 3597103 A US3597103 A US 3597103A US 820741 A US820741 A US 820741A US 3597103D A US3597103D A US 3597103DA US 3597103 A US3597103 A US 3597103A
Authority
US
United States
Prior art keywords
ring
connector
coolant
annular
cylindrical part
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.)
Expired - Lifetime
Application number
US820741A
Other languages
English (en)
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.)
Gottlieb Guehring KG
Original Assignee
Gottlieb Guehring KG
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 Gottlieb Guehring KG filed Critical Gottlieb Guehring KG
Application granted granted Critical
Publication of US3597103A publication Critical patent/US3597103A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B23B51/06—Drills with lubricating or cooling equipment
    • B23B51/068—Details of the lubricating or cooling channel
    • B23B51/0682—Coolant moves along outside of tool periphery toward cutting edges
    • 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

Definitions

  • ABSTRACT A twist drill or the like is provided with coolant B23b 51/06 ducts opening into a groove between the shank and fluted por- ....77/55.3,68, tions of the drill.
  • the groove is surrounded by a stationary connector through which coolant is supplied.
  • the present invention relates to elongated chip-removing rotary tools such as twist drills, countersinks with twisted flutes, counterboring bits and similar tools provided with coolant ducts running along their fluted parts. More particularly the present invention is concerned with such tools as are pro vided with a connector for supplying coolant from a flexible tube to the ducts in the fluted part.
  • the drill is provided with a central drilled hole in the shank portion which is connected via oblique drilled holes with the coolant ducts.
  • the coolant is either supplied through a central hole in the driving spindle of the drilling machine or through an adapter placed between the drill and the spindle.
  • a costly drilling machine construction is necessary for the supply of coolant
  • the cantilever leverage effect on the bearing of the drilling machine nearer the tip of the drill is increased owing to the increa e in the distance between the bearing and the tip so that the resistance of the drill assembly to torsion and bending is impaired.
  • One object of the present invention is to provide an arrangement for supplying coolant to a drill which does not increase the cantilever effect on the bearing of the drilling machine nearest to the tip of the drill.
  • the present invention consists in an elongated chip-removing rotary tool comprising a shank adapted for holding the tool and imparting rotary motion to it, a fluted portion coaxial with the shank, the fluted portion being provided with passage means extending along it for supply of coolant for a cutting operation, and a connector surrounding a part at a position adjacent to mutually adjacent ends of the shank and of the fluted portion, the connector having liquid passage means for leading coolant into the passage means in the fluted portion and having a surface on it for making sealing contact with a surface on the tool while permitting rotation of the tool in relation to the connector and forming a liquid connection between the connector and the passages in the fluted portion ofthe tool.
  • the tool comprises a collar fixed on the tool between adjacent ends of the shank and the fluted portion so as to rotate with the tool, the collar having at least one radial duct connecting the passage means in the fluted portion of the tool with passage means in the connector.
  • the collar also having an outer surface which is a surface of revolution inside the connector.
  • a standard dimension for the outer diameter of the collar a can be selected for a range of drills so that a single size ofconnector can be used for this range.
  • the arrangement can be such that the largest drill in the particular range can have a diameter at a position adjacent to the adjacent ends of a shank and fluted part which is equal to the internal diameter ofthe connector so that no collar is required.
  • the invention also consists in a connector for supplying coolant to a rotary elongated chip-removing tool comprising a part with a duct and a part which is adapted to surround part of the tool and form two sliding liquidtight glands against it for the supply ofliquid from the connector into one or more ducts opening on the surface ofthe tool between the two glands.
  • the latter is provided with an internal annular groove between the glands.
  • the drawing shows a rotary tool in accordance with the in vention by way of example only.
  • the drawing represents an elevation and partial sections.
  • the tool shown is in the form of a twist drill 1.
  • coolant ducts in the form of pressed in coolant tubes 2.
  • the coolant ducts or passages can be formed by holes drilled along the fluted part of the drill.
  • the cylindrical part 3 of the drill is provided with an annular groove 4. Adjacent to the part 3 there is a Morse taper shank 5.
  • a ring or collar 6 is attached, for example by means of a suitable adhesive.
  • the collar 6 has an outer annular groove 8 which is connected via one or two radial drilled holes 7 with the annular groove 4 of the drill l.
  • the ends of the coolant tubes 2 open directly into the groove 4 of the drill at their upstream ends.
  • the ring or collar 6 is jour naled in a connector 10 which is prevented from rotation.
  • the connector 10 is provided with a flexible coolant tube 12 which is connected with a passage or duct 11 leading radially to a groove 9 in the connector.
  • the grooves 8 and 9 are aligned so as to form a single groove which interrupt the cylindrical sliding faces constituting glands on the collar and in the connector 10.
  • coolant is supplied via the connecting tube 12 with a pressure of, for example, 3atmospheres gauge and passes through the various internal passages and the groove 4 into the tubes leading along the lands between the flutes of the fluted portion of the drill.
  • An important advantage of the construction described is that for the supply ofliquid coolant to the ducts in the drill it is not necessary, as is the case with the prior art arrangement, to use an adapter coming between the shank of the drill and the drill holding means of the drilling machine for driving it. Such an adapter substantially increases the cantilever leverage on the bearing of the drilling machine nearest the tip of the drill. Furthermore the construction of the twist drill for use in the arrangement described is substantially simpler because no drilled holes must be provided in the drill for connection with the coolant passages running along the drill.
  • An elongated chip-removing rotary tool comprising an axially extending shank part, arranged to be held for imparting rotary motion to said tool through said shank, a cylindrical part secured at one end to and extending axially from said shank, a fluted part secured to and extending axially from the other end of said cylindrical part, at least one coolant tube formed in and extending along said fluted part for supplying coolant for a cutting operation, and said coolant tube having the inlet end thereof located in said cylindrical part, an annular shaped connector disposed about said cylindrical part for supplying coolant to said tube, the inner surface of said connector being spaced outwardly from said cylindrical part, wherein the improvement comprises a ring rigidly connected to an disposed about said cylindrical part and the inner surface ofsaid ring and the outer surface of said cylindrical part forming a closed annular inlet chamber for coolant, said coolant tube having its inlet end in communication with said inlet chamber, at least one bore formed in said ring extending between said inlet chamber and the outer surface
  • An elongated chip-removing rotary tool as set forth in claim 1, wherein said cylindrical part having an annular groove formed in its outer surface and said ring having an annular groove formed in its inner surface with the annular grooves in said cylindrical part and said ring being disposed in registration for forming said annular inlet chamber for coolantv 4.
  • An elongated chip-removing rotary tool as set forth in claim 1, wherein said ring having another annular groove formed in its outer surface and said connector having an annular groove formed in its inner surface arranged in registration with the another annular groove formed in the outer surface of said ring for forming said annular space between said connector and said ring.
  • An elongated chip-removing rotary tool as set forth in claim I, wherein said bore in said ring extending radially outwardly from said annular chamber to said annular space between said ring and said connector 6.
  • An elongated chip-removing rotary tool as set forth in claim 1, wherein a flexible coolant tube connected to the radially outer surface of said connector, and a duct extending radially through said connector from said annular space between said connector and said ring to said flexible coolant tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
US820741A 1968-05-15 1969-05-01 Chip-removing rotary tools Expired - Lifetime US3597103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681752365 DE1752365A1 (de) 1968-05-15 1968-05-15 Kuehlmittelzufuehrer fuer Spiralbohrer und aehnliche Werkzeuge

Publications (1)

Publication Number Publication Date
US3597103A true US3597103A (en) 1971-08-03

Family

ID=5692753

Family Applications (1)

Application Number Title Priority Date Filing Date
US820741A Expired - Lifetime US3597103A (en) 1968-05-15 1969-05-01 Chip-removing rotary tools

Country Status (9)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101238A (en) * 1976-01-22 1978-07-18 Robert Bosch Gmbh Hole saw with particle-aspirating accessory for hand drill
EP0579371A1 (de) * 1992-06-17 1994-01-19 Makino Milling Machine Co. Ltd. Ein Verfahren und ein Gerät zum Bearbeiten eines Werkstückes
US20110158757A1 (en) * 2009-12-29 2011-06-30 Jurgen Schwagerl 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
US20240123511A1 (en) * 2022-10-18 2024-04-18 Yih Troun Enterprise Co., Ltd. Cutting tool with through coolant
JP2025086940A (ja) * 2023-11-29 2025-06-10 株式会社タンガロイ 切削工具

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8012959U1 (de) 1980-05-13 1981-11-12 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh, 7122 Besigheim Kühleinrichtung für rotierende Schneidwerkzeuge für die spanende Metallbearbeitung, insbesondere für Borhrwerkzeuge
EP0072657B1 (de) * 1981-08-17 1984-10-31 Kennametal Erickson U.K. Limited Zusatzvorrichtung zum Anbringen an einer Maschinenantriebsspindel
SE464746B (sv) * 1989-09-18 1991-06-10 Skf Tools Ab Skaerande verktyg med kanaler foer skaervaetska
DE102008020740A1 (de) * 2008-04-25 2009-10-29 Bernd Sievert Kühlvorrichtung für ein Werkzeug

Citations (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

Patent Citations (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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101238A (en) * 1976-01-22 1978-07-18 Robert Bosch Gmbh Hole saw with particle-aspirating accessory for hand drill
EP0579371A1 (de) * 1992-06-17 1994-01-19 Makino Milling Machine Co. Ltd. Ein Verfahren und ein Gerät zum Bearbeiten eines Werkstückes
US5378091A (en) * 1992-06-17 1995-01-03 Makino Milling Machine Co., Ltd. Method and apparatus for machining a workpiece
US20110158757A1 (en) * 2009-12-29 2011-06-30 Jurgen Schwagerl Rotary cutting tool having sealed margins and method of making same
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
US20240123511A1 (en) * 2022-10-18 2024-04-18 Yih Troun Enterprise Co., Ltd. Cutting tool with through coolant
JP2025086940A (ja) * 2023-11-29 2025-06-10 株式会社タンガロイ 切削工具

Also Published As

Publication number Publication date
DE1752365A1 (de) 1971-05-19
AT286066B (de) 1970-11-25
GB1256112A (en) 1971-12-08
SE341581B (de) 1972-01-10
NL6906920A (de) 1969-11-18
ES367530A1 (es) 1971-04-16
FR2011834A1 (de) 1970-03-13
CH502151A (de) 1971-01-31

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