GB2472011A - Drilling dust extraction - Google Patents
Drilling dust extraction Download PDFInfo
- Publication number
- GB2472011A GB2472011A GB0912572A GB0912572A GB2472011A GB 2472011 A GB2472011 A GB 2472011A GB 0912572 A GB0912572 A GB 0912572A GB 0912572 A GB0912572 A GB 0912572A GB 2472011 A GB2472011 A GB 2472011A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drilling
- workpiece
- air inlet
- chamber
- arrangement
- 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- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 44
- 239000000428 dust Substances 0.000 title claims abstract description 21
- 238000000605 extraction Methods 0.000 title claims abstract description 16
- 231100001261 hazardous Toxicity 0.000 description 2
- 241000125205 Anethum Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/34—Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
A drilling dust extraction arrangement 11 includes a shroud 12 adapted to be attached to a drill alignment device to be in use interposed between the alignment device and a work piece to be drilled. The arrangement may include a shroud 12 having a workpiece-contacting face 15 having an outer rim 16, a drilling chamber 17, air inlet channels 18 connecting the drilling chamber to the outer rim and a suction outlet 19 from the drilling chamber. The air inlet channels may be directed tangentially to the drilling chamber and tapered from the rim to swirl and accelerate the airflow.
Description
Drilling Dust Extraction This invention relates to drilling dust extraction.
It is well known to fit a shroud around a drill bit and connect it to a suction arrangement such as a vacuum cleaner. Such arrangements are disclosed inter a/ia in U52004 192184, US568082 and FR2770991.
Particular problems arise in connection with drilling into carbon fibre and composite materials, where the dust can be very fine and hazardous to health, and such materials are found inter a/ia in the aerospace industry as components of wings and fuselages, where the dust can also be hazardous in other respects..
Particular problems arise when a skin that is to be attached to an airframe has to be drilled for rivets to be inserted into predrilled holes in the framework. This has to be done blind. An alignment device is used that sits on the skin and locates the hole position by detecting a magnet or other field directed through the hole. The device is fixed in position once the alignment is found and used as a drill guide. This militates, of course, against using conventional dill dust extraction arrangements.
The present invention provides drilling dust extraction arrangements that address these problems.
The invention comprises in one aspect a drilling dust extraction arrangement comprising a shroud adapted to be attached to a drill alignment device to be in use interposed between the alignment device and a workpiece to be drilled.
The invention comprises, in another aspect, a drilling dust extraction arrangement comprising a shroud having a workpiece-contacting face having an outer rim, a drilling chamber, air inlet channels connecting the drilling chamber to the outer rim and a suction outlet from the drilling chamber.
The air inlet channels may be directed tangentially to the drilling chamber whereby to swirl the airflow around the drilling chamber. The air inlet channels may be tapered from the rim to the drilling chamber so that the air accelerates towards the drilling chamber.
The air inlet channels may be open to the workpiece-contacting face.
The suction outlet may comprise a lateral extension and have a suction hose connector directed away from the workpiece-contacting face.
The drilling dust attachment may be shaped correspondingly to a drill alignment device so as, when attached, to comprise a workpiece-contacting base therefor.
Drilling dust extraction arrangements according to the invention will now be describer with respect to the accompanying drawings, in which: Figure 1 is a plan view of a drill alignment device with a drilling dust extraction arrangement; Figure 2 is an underplan view of the arrangement of Figure 1; Figure 3 is a side elevation of the arrangement of Figure 1.
The drawings illustrate a drilling dust extraction arrangement 11 comprising a shroud 12 adapted to be attached to a drill alignment device 13 to be in use interposed between the alignment device 13 and a workpiece 14 (Figure 3) to be drilled.
The drawings also illustrate a drilling dust extraction arrangement 11 comprising a shroud 12 having a workpiece-contacting face 15 having an outer rim 16, a drilling chamber 17, air inlet channels 18 connecting the drilling chamber 17 to the outer rim 16 and a suction outlet 19 from the drilling chamber 17.
The air inlet channels 18 are directed tangentially to the drilling chamber 17 whereby to swirl the airflow around the drilling chamber 17. The air inlet channels 18 are tapered from the rim 16 to the drilling chamber 17 so that the air accelerates towards the drilling chamber 17.
The air inlet channels 18 are open to the workpiece-contacting face 15.
The suction outlet 19 comprises a lateral extension 21 and has a suction hose connector 22 directed away from the workpiece-contacting face 15.
The drilling dust arrangement 11 is shaped correspondingly to the drill alignment device 13 so as, when attached, to comprise a workpiece-contacting base therefor. It is held on by bolts passing through bolt apertures 23. Of course, the drilling dust extraction arrangement 11 could be made integral with the drill alignment device 13.
In use, the arrangement is place on a workpiece 14 required to be drilled, the workpiece 14 illustrated in Figure 3 being a skin to be attached to a wing spar 24 with a pre-drilled hole 25. A magnet, not shown, is inserted into the remote end of the hole so as to create a magnetic field running through the hole 25, and the arrangement moved about over the hole 25 until the hole is located by alignment of the drill alignment device 13 with regard to the magnetic field. Clamps 26 then clamp the arrangement to the surface of the workpiece 14, and a drill 27 brought into action through the drill guide arrangement 28 in the alignment device 13.
Claims (4)
- Claims: 1 A drilling dust extraction arrangement comprising a shroud adapted to be attached to a drill alignment device to be in use interposed between the alignment device and a workpiece to be drilled.
- 2 A drilling dust extraction arrangement comprising a shroud having a workpiece-contacting face having an outer rim, a drilling chamber, air inlet channels connecting the drilling chamber to the outer rim and a suction outlet from the drilling chamber.
- 3 An arrangement according to claim 2, in which the air inlet channels are directed tangentially to the drilling chamber whereby to swirl the airflow around the drilling chamber.
- 4 An arrangement according to claim 2 or claim 3, in which the air inlet channels are tapered from the rim to the drilling chamber so that the air accelerates towards the drilling chamber, An arrangement according to claim 3, in which the air inlet channels are open to the workpiece-contacting face.6 An arrangement according to any one of claims 2 to 5, in which the suction outlet comprises a lateral extension and has a suction hose connector 22 directed away from the 7 An arrangement according top any one of claims 2 to 6, in which the drilling dust attachment is shaped correspondingly to a drill alignment device so as, when attached, to comprise a workpiece-contacting base therefor.8 A drilling dust extraction arrangement substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0912572A GB2472011A (en) | 2009-07-21 | 2009-07-21 | Drilling dust extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0912572A GB2472011A (en) | 2009-07-21 | 2009-07-21 | Drilling dust extraction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0912572D0 GB0912572D0 (en) | 2009-08-26 |
| GB2472011A true GB2472011A (en) | 2011-01-26 |
Family
ID=41058217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0912572A Withdrawn GB2472011A (en) | 2009-07-21 | 2009-07-21 | Drilling dust extraction |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2472011A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200075B1 (en) * | 2000-05-16 | 2001-03-13 | The Boeing Company | Drill motor vacuum attachment |
| US20030170082A1 (en) * | 2002-03-08 | 2003-09-11 | The Boeing Company | Multiple-port drill plate and method for debris containment |
| US20040191016A1 (en) * | 2003-02-24 | 2004-09-30 | Wolfgang Hintze | Drilling device |
| JP2006281416A (en) * | 2005-04-04 | 2006-10-19 | Nippon Mektron Ltd | Drilling device of printed circuit board |
| CN201168810Y (en) * | 2007-10-29 | 2008-12-24 | 石世同 | Improved bushing structure of drilling machine pressure foot |
-
2009
- 2009-07-21 GB GB0912572A patent/GB2472011A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200075B1 (en) * | 2000-05-16 | 2001-03-13 | The Boeing Company | Drill motor vacuum attachment |
| US20030170082A1 (en) * | 2002-03-08 | 2003-09-11 | The Boeing Company | Multiple-port drill plate and method for debris containment |
| US20040191016A1 (en) * | 2003-02-24 | 2004-09-30 | Wolfgang Hintze | Drilling device |
| JP2006281416A (en) * | 2005-04-04 | 2006-10-19 | Nippon Mektron Ltd | Drilling device of printed circuit board |
| CN201168810Y (en) * | 2007-10-29 | 2008-12-24 | 石世同 | Improved bushing structure of drilling machine pressure foot |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0912572D0 (en) | 2009-08-26 |
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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) |