WO2004078393A1 - 深穴加工用ドリル - Google Patents
深穴加工用ドリル Download PDFInfo
- Publication number
- WO2004078393A1 WO2004078393A1 PCT/JP2004/002339 JP2004002339W WO2004078393A1 WO 2004078393 A1 WO2004078393 A1 WO 2004078393A1 JP 2004002339 W JP2004002339 W JP 2004002339W WO 2004078393 A1 WO2004078393 A1 WO 2004078393A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drill
- core
- deep hole
- tip
- cutting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/20—Crankshafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/31—Diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/12—Cross sectional views of the cutting edges
- B23B2251/122—Bevelled cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface
- B23B2251/443—Double margin drills
-
- 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
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/899—Having inversely angled cutting edge
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/905—Having stepped cutting edges
- Y10T408/906—Axially spaced
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/905—Having stepped cutting edges
- Y10T408/906—Axially spaced
- Y10T408/9065—Axially spaced with central lead
-
- 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
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
Definitions
- the present invention relates to a drill for machining a deep hole in a cylinder block, a crankshaft, and the like of an engine.
- Patent Literature 1 Patent Literature 1
- Patent Literature 2 Patent Literature 3
- Patent Document 1 discloses a tapping screw in which a drill blade is provided at a tip portion and an end mill blade is formed following the drill blade.
- the tip of the drill bit has a shape in which the core portion protrudes in the axial direction.
- Patent Document 2 discloses that a first and a second flute groove are provided in a tool body, a first outer peripheral tip and a center side tip are attached to a first full groove, and a second flute groove is attached to a second flute groove.
- An end mill to which an outer peripheral tip is attached is disclosed.
- the cutting edge ridges at the tips of the first and second outer peripheral tips are concave toward the tool core.
- the difference between a drill and an end mill is that the drill has a cutting edge only at the tip and is used for drilling and chamfering, whereas the end mill has a bottom blade and an outer peripheral edge, and a drill and a groove. Processing and side processing are possible, but only shallow drilling is possible due to the small chip room.
- Patent Document 3 discloses a drill in which the torsion angle of a cutting blade is gradually reduced toward a shank.
- a concave shape is shown as the shape of the leading edge of the cutting blade.
- Patent Document 1 Japanese Utility Model Application Laid-Open No. 6-18710
- Patent Document 2 Japanese Utility Model Laid-Open No. 6—2 5 4 7 11
- Patent Document 3 Japanese Patent Application Laid-Open No. 7-410118 Fig. 5 illustrates an example of drilling a deep hole in a cylinder block using a conventional drill (tip angle: 118 °) with a protruding cutting blade tip.
- a pilot hole ⁇ extraction hole
- FIG. 5 illustrates an example of drilling a deep hole in a cylinder block using a conventional drill (tip angle: 118 °) with a protruding cutting blade tip.
- a drill for deep hole drilling has a ridgeline at the tip of a helical cutting blade that is recessed toward the core of the drill, and at the tip of the drill, the ridgeline is formed outside the cutting blade.
- a guide portion is provided on the heel side on the same circumference as the circumference through which the end passes.
- the provision of the guide portion provides four-point support, including the cutting edge, and can suppress bending during deep hole drilling. Further, a diamond blade can be attached to the guide portion.
- the cutting angle at the tip of the cutting blade is more than 0 ° and 10 ° or less, for example, about 5 °.
- FIG. 1 is an overall view of a deep hole drill according to the present invention.
- FIG. 2 is an enlarged view of the tip of the drill for deep hole drilling.
- FIG. 3 is an end view of the tip of the drill for deep hole drilling.
- FIG. 4 is an end view (diamond blade) similar to FIG. 3 showing another embodiment.
- FIGS. 5 (a) to 5 (c) are diagrams for explaining a conventional problem. BEST MODE FOR CARRYING OUT THE INVENTION
- Fig. 1 is an overall view of the drill for deep hole drilling according to the present invention
- Fig. 2 is an enlarged view of the tip of the drill for deep hole drilling
- Fig. 3 is an end view of the tip of the drill for deep hole drilling. It is.
- the drill for deep hole drilling comprises a drill body 1 and a shank 2, and a pair of cutting blades 3 are formed in the drill body 1 in a spiral shape.
- the cutting blade 3 is formed at an opposite position approximately 180 ° away from the center of the drill core 1a, and the ridge 3a at the tip of the cutting blade 3 is recessed toward the core 1a of the drill.
- the angle between the ridge 3a (the ridge at the outer end of the cutting blade 3) and a line perpendicular to the core 1a is 5 °. Further, in the illustrated example, the core thickness (t) is set to 2.96 mm (0.4 D).
- the drill according to the present invention includes a guide portion 4 for preventing bending during cutting.
- the guide portion 4 is provided on the heel side on the same circumference as the circumference through which the outer ends of the cutting blades 3, 3 pass. Thus, stable cutting can be performed by the four-point support of the cutting blades 3, 3 and the guide portions 4, 4.
- FIG. 4 is a view similar to FIG. 3 showing another embodiment.
- diamond blades 5, 5 are attached to the tips of the guides 4, 4, thereby diverting to reaming. It has a configuration that can be used. Industrial applicability
- the drill by providing the guide portion, the drill has a self-guide function, so that the shape of the tip of the cutting blade is depressed toward the core so as not to follow the prepared hole.
- the straightness is improved and the rigidity is increased by increasing the core thickness.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0408083-1A BRPI0408083A (pt) | 2003-03-05 | 2004-02-27 | broca para perfuração profunda |
CN200480005883XA CN1756611B (zh) | 2003-03-05 | 2004-02-27 | 深孔钻头 |
US10/547,826 US7201544B2 (en) | 2003-03-05 | 2004-02-27 | Deep hole boring drill |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-059035 | 2003-03-05 | ||
JP2003059035A JP2004268165A (ja) | 2003-03-05 | 2003-03-05 | 深穴加工用ドリル |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004078393A1 true WO2004078393A1 (ja) | 2004-09-16 |
Family
ID=32958816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/002339 WO2004078393A1 (ja) | 2003-03-05 | 2004-02-27 | 深穴加工用ドリル |
Country Status (6)
Country | Link |
---|---|
US (1) | US7201544B2 (ja) |
JP (1) | JP2004268165A (ja) |
CN (1) | CN1756611B (ja) |
BR (1) | BRPI0408083A (ja) |
MY (1) | MY136773A (ja) |
WO (1) | WO2004078393A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3874774B2 (ja) * | 2004-08-19 | 2007-01-31 | オーエスジー株式会社 | 鋳抜き穴加工用ドリル |
GB2428611B (en) * | 2005-08-02 | 2007-10-03 | Dormer Tools | Twist drill |
JP2007069287A (ja) * | 2005-09-06 | 2007-03-22 | Nachi Fujikoshi Corp | 高精度3溝ドリル |
JP2007198271A (ja) * | 2006-01-27 | 2007-08-09 | Daihatsu Motor Co Ltd | 内燃機関における過給機からの戻油管装置 |
JP5197989B2 (ja) * | 2007-04-23 | 2013-05-15 | 京セラディスプレイ株式会社 | 表示パネルの製造方法 |
DE102011011678B8 (de) | 2010-09-16 | 2022-05-19 | Hans Walter Mohr Gmbh | Verfahren zur Herstellung eines Bohrloches |
CN102248204A (zh) * | 2011-06-21 | 2011-11-23 | 潍柴动力股份有限公司 | 特殊深孔加工刀具及加工方法 |
CN102398062A (zh) * | 2011-11-25 | 2012-04-04 | 成都鑫三洋科技发展有限公司 | 深孔钻头 |
DE102011122539A1 (de) * | 2011-12-27 | 2013-06-27 | Rolls-Royce Deutschland Ltd & Co Kg | Verfahren zur Herstellung einer Bohrung in einem Werkstück |
JP5519723B2 (ja) * | 2012-04-11 | 2014-06-11 | 住友電工ハードメタル株式会社 | 刃先交換式ドリル |
JP5975340B2 (ja) * | 2012-10-25 | 2016-08-23 | 住友電工ハードメタル株式会社 | ドリル |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60114407A (ja) * | 1983-11-24 | 1985-06-20 | Sumitomo Electric Ind Ltd | ドリル |
JPS6128654Y2 (ja) * | 1983-03-07 | 1986-08-25 | ||
JPS62188613A (ja) * | 1986-02-12 | 1987-08-18 | Mitsubishi Metal Corp | 穴明け工具 |
JPH02237710A (ja) * | 1989-03-09 | 1990-09-20 | Mitsubishi Heavy Ind Ltd | ツイストドリル |
JPH05253718A (ja) * | 1992-03-10 | 1993-10-05 | Nec Toyama Ltd | 穴あけ用ドリル |
JPH0733516U (ja) * | 1993-12-03 | 1995-06-20 | 東芝タンガロイ株式会社 | バニシングドリル |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2332295A (en) * | 1941-11-07 | 1943-10-19 | Western Electric Co | Drill |
US2652083A (en) * | 1951-08-02 | 1953-09-15 | Cleveland Twist Drill Co | Wood bit |
US3977807A (en) * | 1972-07-21 | 1976-08-31 | Osborn-Mushet Tools Limited | Twist drills |
GB1460842A (en) * | 1974-02-11 | 1977-01-06 | Marwin Cutting Tools Ltd | Rotary cutting tools |
JPS57156109A (en) * | 1981-03-23 | 1982-09-27 | Toshiba Tungaloy Co Ltd | Drilling tool for eccentric rotary cutting |
JPS60177807A (ja) * | 1984-02-20 | 1985-09-11 | Toshiaki Hosoi | ドリル |
JPS6128654A (ja) | 1984-07-16 | 1986-02-08 | 元旦ビユーティ工業株式会社 | 建物の面構造体 |
US4756650A (en) * | 1986-11-26 | 1988-07-12 | Kabushiki Kaisha Kobe Seiko Sho | Twist drill |
US5046902A (en) * | 1988-10-21 | 1991-09-10 | Zubov Alexei V | Spiral drill |
US5272940A (en) * | 1992-06-09 | 1993-12-28 | Dico Corporation | Helically fluted tool |
JPH0618710A (ja) | 1992-06-30 | 1994-01-28 | Dainippon Printing Co Ltd | 回折波長範囲の広い回折格子の作製方法 |
JPH06254711A (ja) | 1993-03-01 | 1994-09-13 | Toshiba Tungaloy Co Ltd | スローアウェイ式エンドミル |
JP3083681B2 (ja) | 1993-06-25 | 2000-09-04 | 財団法人ファインセラミックスセンター | MgO−SiO2系磁器及びその製造方法 |
JPH0740118A (ja) | 1993-07-23 | 1995-02-10 | Nippon Ceratec Kk | 穴明け切削工具 |
DE4417166B4 (de) * | 1993-07-27 | 2006-02-16 | Mitsubishi Materials Corp. | Bohrgerät |
GB2303809A (en) * | 1995-07-29 | 1997-03-05 | Black & Decker Inc | Roll-forged drill bit |
GB9606370D0 (en) * | 1996-03-26 | 1996-06-05 | Dormer Tools Sheffield Ltd | Improvements in or relating to twist drills |
US5846035A (en) * | 1997-07-11 | 1998-12-08 | General Electric Company | Damage resistant drill |
US6443674B1 (en) * | 2000-05-19 | 2002-09-03 | Ics Cutting Tools, Inc. | Self-centering twist drill having a modified flat bottom section and a helical crown point tip |
SE516229C2 (sv) * | 2000-05-26 | 2001-12-03 | Eero Nygaard | Borrspets |
-
2003
- 2003-03-05 JP JP2003059035A patent/JP2004268165A/ja active Pending
-
2004
- 2004-02-27 CN CN200480005883XA patent/CN1756611B/zh not_active Expired - Fee Related
- 2004-02-27 BR BRPI0408083-1A patent/BRPI0408083A/pt not_active IP Right Cessation
- 2004-02-27 US US10/547,826 patent/US7201544B2/en not_active Expired - Fee Related
- 2004-02-27 WO PCT/JP2004/002339 patent/WO2004078393A1/ja active Application Filing
- 2004-03-03 MY MYPI20040736A patent/MY136773A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6128654Y2 (ja) * | 1983-03-07 | 1986-08-25 | ||
JPS60114407A (ja) * | 1983-11-24 | 1985-06-20 | Sumitomo Electric Ind Ltd | ドリル |
JPS62188613A (ja) * | 1986-02-12 | 1987-08-18 | Mitsubishi Metal Corp | 穴明け工具 |
JPH02237710A (ja) * | 1989-03-09 | 1990-09-20 | Mitsubishi Heavy Ind Ltd | ツイストドリル |
JPH05253718A (ja) * | 1992-03-10 | 1993-10-05 | Nec Toyama Ltd | 穴あけ用ドリル |
JPH0733516U (ja) * | 1993-12-03 | 1995-06-20 | 東芝タンガロイ株式会社 | バニシングドリル |
Also Published As
Publication number | Publication date |
---|---|
MY136773A (en) | 2008-11-28 |
US20060099042A1 (en) | 2006-05-11 |
CN1756611B (zh) | 2010-05-26 |
JP2004268165A (ja) | 2004-09-30 |
BRPI0408083A (pt) | 2006-02-14 |
CN1756611A (zh) | 2006-04-05 |
US7201544B2 (en) | 2007-04-10 |
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