WO2008096603A1 - Gun drill - Google Patents

Gun drill Download PDF

Info

Publication number
WO2008096603A1
WO2008096603A1 PCT/JP2008/050905 JP2008050905W WO2008096603A1 WO 2008096603 A1 WO2008096603 A1 WO 2008096603A1 JP 2008050905 W JP2008050905 W JP 2008050905W WO 2008096603 A1 WO2008096603 A1 WO 2008096603A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
hollow shank
secured
hollow
tubular driver
Prior art date
Application number
PCT/JP2008/050905
Other languages
French (fr)
Japanese (ja)
Inventor
Takuji Nomura
Nobuyuki Hanabusa
Original Assignee
Unitac Incorporated
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 Unitac Incorporated filed Critical Unitac Incorporated
Priority to TW097103395A priority Critical patent/TW200914173A/en
Publication of WO2008096603A1 publication Critical patent/WO2008096603A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0486—Drills for trepanning with lubricating or cooling equipment
    • 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
    • B23B51/063—Deep hole drills, e.g. ejector drills
    • B23B51/066—Gun drills

Landscapes

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

Abstract

Hollow shanks of the same diameter and different lengths used as gun drills can be easily manufactured with high efficiency and at low cost by cutting an elongated raw material having a V-groove over the full length without producing a large amount of unwanted short tubes. A gun drill (G1) comprises a hollow shank (1) having a V-groove (11) along the length in the outer peripheral surface, a tubular driver (3) into which the rear end (1b) of the hollow shank (1) is inserted and secured, a cutting head (2) secured to the front end (1a) of the hollow shank (3). A coolant (C) introduced into the tubular driver (3) is passed through the inside of the hollow shank (1) and supplied to the cut portion through the coolant discharge hole (21) of the cutting head (2) and discharged through the V-groove (11) together with the cuttings (S). The hollow shank (1) has the V-groove (11) over the full length, a groove closing piece (8) for closing the V-groove (11) by filling in the V-groove (11) with the groove closing piece (8) is secured to the rear end (1b) inserted into the tubular driver (3) of the hollow shank (11).
PCT/JP2008/050905 2007-02-06 2008-01-23 Gun drill WO2008096603A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW097103395A TW200914173A (en) 2007-02-06 2008-01-30 Gun drill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007026671A JP2008188720A (en) 2007-02-06 2007-02-06 Gun drill
JP2007-026671 2007-02-06

Publications (1)

Publication Number Publication Date
WO2008096603A1 true WO2008096603A1 (en) 2008-08-14

Family

ID=39681514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050905 WO2008096603A1 (en) 2007-02-06 2008-01-23 Gun drill

Country Status (3)

Country Link
JP (1) JP2008188720A (en)
TW (1) TW200914173A (en)
WO (1) WO2008096603A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012083908A1 (en) * 2010-11-05 2012-06-28 Botek Präzisionsbohrtechnik Gmbh Single-lip drill
JP2023165067A (en) * 2022-05-02 2023-11-15 株式会社タンガロイ body for gun drill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111822748B (en) * 2020-05-29 2021-11-26 武汉船用机械有限责任公司 Deep hole machining system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114610A (en) * 1980-02-15 1981-09-09 Nachi Fujikoshi Corp Drilling tool
JPH0512020U (en) * 1991-04-03 1993-02-19 三菱マテリアル株式会社 Gun drill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114610A (en) * 1980-02-15 1981-09-09 Nachi Fujikoshi Corp Drilling tool
JPH0512020U (en) * 1991-04-03 1993-02-19 三菱マテリアル株式会社 Gun drill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012083908A1 (en) * 2010-11-05 2012-06-28 Botek Präzisionsbohrtechnik Gmbh Single-lip drill
US9421621B2 (en) 2010-11-05 2016-08-23 Botek Praezisionsbohrtechnik Gmbh Single-lip drill
JP2023165067A (en) * 2022-05-02 2023-11-15 株式会社タンガロイ body for gun drill

Also Published As

Publication number Publication date
TW200914173A (en) 2009-04-01
JP2008188720A (en) 2008-08-21

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