GB2494636A - Counterbore and chamfer tool - Google Patents

Counterbore and chamfer tool Download PDF

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Publication number
GB2494636A
GB2494636A GB1115756.7A GB201115756A GB2494636A GB 2494636 A GB2494636 A GB 2494636A GB 201115756 A GB201115756 A GB 201115756A GB 2494636 A GB2494636 A GB 2494636A
Authority
GB
United Kingdom
Prior art keywords
text
counterbore
chamfer
tool
section
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.)
Withdrawn
Application number
GB1115756.7A
Other versions
GB201115756D0 (en
Inventor
Alan Lees
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 GB1115756.7A priority Critical patent/GB2494636A/en
Publication of GB201115756D0 publication Critical patent/GB201115756D0/en
Publication of GB2494636A publication Critical patent/GB2494636A/en
Withdrawn legal-status Critical Current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
    • B23B51/08—Drills combined with tool parts or tools for performing additional working
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/11—Retention by threaded connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/102—Back spot-facing or chamfering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/105—Deburring or countersinking of radial holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/108—Bits for countersinking having a centering drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

The counterbore and chamfer tool 1 is to create a counter bore W and chamfer X at one end of a pre-drilled hole Y. The tool includes a tool shaft 2 and a cutting tool 4 at the end of the shaft having a first section 5 to cut the counter bore W in a workpiece Z. A second section 6 with a tapered face 6A is axially spaced from and adjacent to the first section. The second section cuts a chamfer X at one end of the counterbore remote from the pre-drilled hole. The first section may have a cutting face at one end.

Description

Title: Counterbore and Chamfer Tool The present invention relates to a counterbore and chamfer tool.
Counterboring of pre-drilled holes to accommodate cap headed screws has always been a problem with counterboring tools.
Using conventional counterborers always creates an unsightly burr at the top of the hole and the more the counterborer wears, the more the burr increases, which can be difficult to remove. To remove this buff, it can be filed flat then deburred with a modular deburring tool which never looks professional, or chamfered with a countersink tool which is time consuming and make counterboring a pre-dril led hole a two operation process.
The invention seeks to provide a tool which avoids these problems.
According to the present invention there is provided a counterbore and chamfer tool to create a counterbore and chamfer at one end of a pre-drilled hole comprising: a) a tool shaft, b) a cutting tool at the end of the shaft having a first section to cut a counterbore at one end of a pre-drilled hole in a workpiece, and a second section with a tapered face axially spaced from and adjacent the first section to cut a chamfer at one end of the counterbore remote from the pre-drilled hole.
Preferably the first section has a cutting face at one end.
An embodiment of the invention will now be described with reference to the accompanying drawing showing a side view of a tool above a cross section of a workpiece worked on by the tool.
Referring to the drawing there is shown a counterbore and chamfer tool I to create a counterbore W and chamfer X at one end of a pre-drilled hole Y in a workpiece 1 Tool I has a main tool shaft 2 with a threaded end 3 to connect to a tool head.
A cutting tool 4 is provided at the end of the shaft 2 having a first section 5 with a cutting face 5A to cut counterbore W at one end of pre-drilled hole Y in a workpiece Z, and a second section 6 with a tapered face 6A axially spaced from and adjacent the first section to cut the chamfer X at one end of the counterbore remote from the pre-drilled hole.
The invention provides a two in one operational cutting tool which is a solution to the aforesaid problems in engineering maching and on the tool the counterbore depth may be set at lnt/rn below the cap head screw to produce a.5OmIni chamfer on top of the counterbore.
The invention may take a form different to that specifically described above.
Further modifications will be apparent to those skilled in the art without departing from the scope of the present invention. I.

Claims (3)

  1. <claim-text>CLAIMSI A counterbore and chamfer tool to create a counterbore and chamfer at one end of a pre-drilled hole comprising: a) a tool shaft, b) a cutting tool at the end of the shaft having a first section to cut a countethore at one end of a pre-drilled hole in a workpiece, and a second section with a tapered face axially spaced from and adjacent the first section to cut a chamfer at one end of the counterbore remote from the pre-drilled hole. * S S*
  2. 2. A counterbore and chamfer tool according to claim 1, wherein the first section has a cutting S..... * Sface at one end. S..* ::
  3. 3. A counterbore and chamfer tool substantially as hereinbefore described with reference to and as shown in the accompanying drawings. *AMENDMENTS TO THE CLAIMS HAVE BEEN FILED AS FOLLOWSThe novelty is in the design. My Invention is made from one solid piece of stS i.e H.S.S.M42 or solid carbide which is not in previously published documents.Inventive Step 1) Is made to coynterbore and chamfer in one operation pre-drilled holes for cap headed screws M3 to M29 or larger and can also be in long series and can also be in imperial sizes.</claim-text> <claim-text>2) My design is solely and intentionally for this operation and which can be purchased by the engineering industry off the shelf in engineers stockists or catalogues which at present it is not aviabe. S. * * . . * .* * .</claim-text> <claim-text>S sS* a * S</claim-text> <claim-text>S * S * *5 * S</claim-text> <claim-text>5 5 ciS*5555*I</claim-text>
GB1115756.7A 2011-09-13 2011-09-13 Counterbore and chamfer tool Withdrawn GB2494636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1115756.7A GB2494636A (en) 2011-09-13 2011-09-13 Counterbore and chamfer tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1115756.7A GB2494636A (en) 2011-09-13 2011-09-13 Counterbore and chamfer tool

Publications (2)

Publication Number Publication Date
GB201115756D0 GB201115756D0 (en) 2011-10-26
GB2494636A true GB2494636A (en) 2013-03-20

Family

ID=44908445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1115756.7A Withdrawn GB2494636A (en) 2011-09-13 2011-09-13 Counterbore and chamfer tool

Country Status (1)

Country Link
GB (1) GB2494636A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14109U1 (en) * 2014-10-28 2015-04-15 Leopold Pranzl PLAN COUNTERSINKS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112770504A (en) * 2020-11-26 2021-05-07 景德镇市恒耀电子科技有限公司 Method for processing countersunk hole of multilayer circuit board

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203866A (en) * 1922-08-10 1923-09-20 John Hindley Walker Combined facing and reamering tool
US2829544A (en) * 1953-12-07 1958-04-08 Weldon Tool Co Countersinking and counterboring tool
GB2123322A (en) * 1981-02-04 1984-02-01 Fredrick Thomas Stephenson Drill bits with countersinking means
US4917550A (en) * 1987-01-20 1990-04-17 Briles Rivet Corporation Countersink forming tooling
US5288184A (en) * 1992-05-23 1994-02-22 Heinrich Heule Deburring tool with additional cutting tool
US20100014929A1 (en) * 2008-07-16 2010-01-21 Dimitrije Stojanovski Boring tool with adjustable chamfer cutter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203866A (en) * 1922-08-10 1923-09-20 John Hindley Walker Combined facing and reamering tool
US2829544A (en) * 1953-12-07 1958-04-08 Weldon Tool Co Countersinking and counterboring tool
GB2123322A (en) * 1981-02-04 1984-02-01 Fredrick Thomas Stephenson Drill bits with countersinking means
US4917550A (en) * 1987-01-20 1990-04-17 Briles Rivet Corporation Countersink forming tooling
US5288184A (en) * 1992-05-23 1994-02-22 Heinrich Heule Deburring tool with additional cutting tool
US20100014929A1 (en) * 2008-07-16 2010-01-21 Dimitrije Stojanovski Boring tool with adjustable chamfer cutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14109U1 (en) * 2014-10-28 2015-04-15 Leopold Pranzl PLAN COUNTERSINKS

Also Published As

Publication number Publication date
GB201115756D0 (en) 2011-10-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)