WO2008092386A1 - Foret étagé à rainure spirale - Google Patents

Foret étagé à rainure spirale Download PDF

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Publication number
WO2008092386A1
WO2008092386A1 PCT/CN2008/000221 CN2008000221W WO2008092386A1 WO 2008092386 A1 WO2008092386 A1 WO 2008092386A1 CN 2008000221 W CN2008000221 W CN 2008000221W WO 2008092386 A1 WO2008092386 A1 WO 2008092386A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
drill
pagoda
diameter
shank
Prior art date
Application number
PCT/CN2008/000221
Other languages
English (en)
Chinese (zh)
Inventor
Qi Zhang
Original Assignee
Qi Zhang
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 Qi Zhang filed Critical Qi Zhang
Publication of WO2008092386A1 publication Critical patent/WO2008092386A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/009—Stepped drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/04—Angles, e.g. cutting angles
    • 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
    • B23B2251/408—Spiral grooves

Definitions

  • the invention relates to a single-slot pagoda drill, belonging to the technical field of hardware tools.
  • 3 ⁇ 4 ⁇ interest 3 ⁇ 4 hole machining needs to be completed by the corresponding processing equipment and tools.
  • the corresponding drill bit is selected according to different apertures.
  • Different hole diameters are used to replace the corresponding drills, and the labor intensity is high, which is not conducive to improving production efficiency or adapting to the requirements of modern advanced processing equipment.
  • scientific and technological personnel have developed a pagoda drill, also called step drill.
  • the drill has a plurality of diameters integrated into one body, and the diameters are sequentially increased from the front end portion, and the diameters are spaced apart by about 5 mm, and a single straight groove is formed on the outer wall in the same direction as the axis.
  • the pagoda drilled in this structure is processed in a thin plate.
  • the existing chip removal groove on the pagoda drill is a single straight groove, and the groove bottom of the straight groove has an angle. Straight groove and its angled groove bottom are not conducive to chipping, and the joint faces of adjacent diameters are straight, straight The edge formed with the straight groove edge is not ideal, which affects the improvement of the processing quality.
  • the object of the present invention is to solve the disadvantage that the straight groove existing in the existing single straight groove pagoda drill is not suitable for the chipping, the edge formed by the straight edge and the straight groove edge is not ideal, and the one which is favorable for the chip removal and the processing quality is improved.
  • Single-slot pagoda drill is not suitable for the chipping, the edge formed by the straight edge and the straight groove edge is not ideal, and the one which is favorable for the chip removal and the processing quality is improved.
  • the utility model relates to a single-slot pagoda drill, which comprises a drill body and a drill handle portion integrated therewith, characterized in that the single groove on the drill body is a spiral groove from the rear end to the front end of the drill body, and the joint surface of the adjacent diameter is concave. Curved surface.
  • the groove bottom of the spiral groove is a parabolic structure;
  • the radius of the concave curved surface between adjacent diameters is 1-3 mm;
  • the joint surface of the adjacent diameter may also be a bevel, and the angle between the bevel and the diameter of one side is 43-47 degrees.
  • the shank is a round shank, or a triangular shank, or a hex shank with a locating groove.
  • the invention is an improvement of the existing single straight groove pagoda drilling structure, and the single straight groove drilled by the existing pagoda is designed as a spiral groove, and the bottom of the groove is a parabolic structure, and the joint surface of the adjacent diameter is concave curved surface;
  • the joint surface of the adjacent diameter may also be a sloped surface, and the angle between the slope and the diameter of one side is 43-47 degrees.
  • the structure has a sharper edge, and the material scraps generated during the processing are easily withdrawn in the spiral direction, which is beneficial to improve the processing quality.
  • the invention has strong applicability and can replace the existing single straight groove pagoda drill. .
  • Figure 1 is a schematic structural view of the present invention
  • Figure 2 is a schematic enlarged view of the portion A of Figure 1;
  • Figure 3 is a schematic bottom view of the present invention.
  • the invention consists of a drill body 1 and a shank 5 integral therewith.
  • the single groove on the drill body 1 is a spiral groove 2 from the rear end to the front end of the drill body 1, adjacent
  • the joint face 3 of the diameter is concave curved surface
  • the groove bottom of the spiral groove 2 is a paraboloid 4 structure
  • the radius of the concave curved surface between adjacent diameters is 1 - 3 mm
  • the joint surface 3 of the adjacent diameter may also be a sloped surface, the inclined surface and
  • the angle of one side diameter is 43-47 degrees.
  • the shank portion 5 is a round shank, or a triangular shank, or a hex shank having a positioning groove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)

Abstract

La présente invention concerne un foret étagé à queue intégrée, dans lequel une rainure spirale court de l'extrémité à la partie antérieure du corps, le fond de rainure étant de structure paraboloïdale. La surface de combinaison de diamètre adjacent est une surface d'arc concave, ou bien la surface de combinaison de diamètre adjacent est une surface inclinée, et l'angle entre le diamètre d'un côté et la surface inclinée fait de 43 à 47 degrés.
PCT/CN2008/000221 2007-01-29 2008-01-29 Foret étagé à rainure spirale WO2008092386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100196642A CN101007358A (zh) 2007-01-29 2007-01-29 单槽宝塔钻
CN200710019664.2 2007-01-29

Publications (1)

Publication Number Publication Date
WO2008092386A1 true WO2008092386A1 (fr) 2008-08-07

Family

ID=38696140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000221 WO2008092386A1 (fr) 2007-01-29 2008-01-29 Foret étagé à rainure spirale

Country Status (2)

Country Link
CN (1) CN101007358A (fr)
WO (1) WO2008092386A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251256A1 (en) * 2011-04-04 2012-10-04 GM Global Technology Operations LLC Cutting tool for control of surface roughness
US9731358B2 (en) 2013-06-06 2017-08-15 Milwaukee Electric Tool Corporation Step drill bit
WO2020002581A1 (fr) 2018-06-28 2020-01-02 Ruko Gmbh Praezisionswerkzeuge Foret étagé
WO2020115301A1 (fr) * 2018-12-06 2020-06-11 Ruko Gmbh Praezisionswerkzeuge Foret étagé
US11007583B2 (en) * 2016-02-14 2021-05-18 Hongjia Wang Twist drill
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5360805B2 (ja) * 2008-10-30 2013-12-04 日立ビアメカニクス株式会社 工具位置決め装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07156007A (ja) * 1993-12-06 1995-06-20 Nippon Light Metal Co Ltd 円錐ドリル及び複合パネルの穿孔方法
DE19526686A1 (de) * 1994-09-09 1996-03-14 Duerr Praezisionswerkzeuge Gmb Mehrstufenbohrer
JPH11239907A (ja) * 1998-02-23 1999-09-07 Omi Kogyo Co Ltd ステップドリル及びステップドリルの製造方法
DE20303656U1 (de) * 2003-03-06 2003-05-08 Quanz Reiner Stufenbohrer
CN2623387Y (zh) * 2003-04-26 2004-07-07 嘉兴恒锋工具有限公司 等螺旋角阶梯钻
CN2629882Y (zh) * 2003-07-24 2004-08-04 谢林祥 钻头
DE20318529U1 (de) * 2003-11-29 2005-04-07 Ruko Gmbh Praez Swerkzeuge Mehrstufenbohrer mit bestimmten Schneidkantenwinkeln in den Übergangsbereichen zwischen den zylinderähnlichen Abschnitten unterschiedlichen Durchmessers
US6890133B2 (en) * 2002-10-18 2005-05-10 Irwin Industrial Tool Company Stepped drill bit having split tip
CN1640596A (zh) * 2004-01-16 2005-07-20 旭荣研磨加工株式会社 阶梯孔形成用钻头
CN2822839Y (zh) * 2005-08-08 2006-10-04 上海锐晟五金工具有限公司 复合型阶梯钻

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07156007A (ja) * 1993-12-06 1995-06-20 Nippon Light Metal Co Ltd 円錐ドリル及び複合パネルの穿孔方法
DE19526686A1 (de) * 1994-09-09 1996-03-14 Duerr Praezisionswerkzeuge Gmb Mehrstufenbohrer
JPH11239907A (ja) * 1998-02-23 1999-09-07 Omi Kogyo Co Ltd ステップドリル及びステップドリルの製造方法
US6890133B2 (en) * 2002-10-18 2005-05-10 Irwin Industrial Tool Company Stepped drill bit having split tip
DE20303656U1 (de) * 2003-03-06 2003-05-08 Quanz Reiner Stufenbohrer
CN2623387Y (zh) * 2003-04-26 2004-07-07 嘉兴恒锋工具有限公司 等螺旋角阶梯钻
CN2629882Y (zh) * 2003-07-24 2004-08-04 谢林祥 钻头
DE20318529U1 (de) * 2003-11-29 2005-04-07 Ruko Gmbh Praez Swerkzeuge Mehrstufenbohrer mit bestimmten Schneidkantenwinkeln in den Übergangsbereichen zwischen den zylinderähnlichen Abschnitten unterschiedlichen Durchmessers
CN1640596A (zh) * 2004-01-16 2005-07-20 旭荣研磨加工株式会社 阶梯孔形成用钻头
CN2822839Y (zh) * 2005-08-08 2006-10-04 上海锐晟五金工具有限公司 复合型阶梯钻

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251256A1 (en) * 2011-04-04 2012-10-04 GM Global Technology Operations LLC Cutting tool for control of surface roughness
USD936117S1 (en) 2013-06-06 2021-11-16 Milwaukee Electric Tool Corporation Step drill bit
US10252351B2 (en) 2013-06-06 2019-04-09 Milwaukee Electric Tool Corporation Step drill bit
US10695845B2 (en) 2013-06-06 2020-06-30 Milwaukee Electric Tool Corporation Step drill bit
US9731358B2 (en) 2013-06-06 2017-08-15 Milwaukee Electric Tool Corporation Step drill bit
US11007583B2 (en) * 2016-02-14 2021-05-18 Hongjia Wang Twist drill
US11007584B2 (en) * 2016-02-14 2021-05-18 Hongjia Wang Twist drill
US11554424B1 (en) 2016-02-14 2023-01-17 Hongjia Wang Twist drill
US11865627B1 (en) 2016-02-14 2024-01-09 Hongjia Wang Twist drill
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit
US11691203B2 (en) 2018-04-26 2023-07-04 Milwaukee Electric Tool Corporation Step drill bit
WO2020002581A1 (fr) 2018-06-28 2020-01-02 Ruko Gmbh Praezisionswerkzeuge Foret étagé
DE102018115624A1 (de) * 2018-06-28 2020-01-02 RUKO GmbH Präzisionswerkzeuge Stufenbohrer
WO2020115301A1 (fr) * 2018-12-06 2020-06-11 Ruko Gmbh Praezisionswerkzeuge Foret étagé

Also Published As

Publication number Publication date
CN101007358A (zh) 2007-08-01

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