SE526477C2 - Suction cover is used for evacuation of drill dust and has outer and inner ring-shaped frames, free edges of which lie in common plane for sealing against a flat surface in which drill is to bore hole - Google Patents
Suction cover is used for evacuation of drill dust and has outer and inner ring-shaped frames, free edges of which lie in common plane for sealing against a flat surface in which drill is to bore holeInfo
- Publication number
- SE526477C2 SE526477C2 SE0301421A SE0301421A SE526477C2 SE 526477 C2 SE526477 C2 SE 526477C2 SE 0301421 A SE0301421 A SE 0301421A SE 0301421 A SE0301421 A SE 0301421A SE 526477 C2 SE526477 C2 SE 526477C2
- Authority
- SE
- Sweden
- Prior art keywords
- cover
- drill
- opening
- evacuation
- lie
- Prior art date
Links
Classifications
-
- 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
-
- 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
- B23Q11/02—Devices for removing scrap from the cutting teeth of circular or non-circular cutters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling And Boring (AREA)
Abstract
Description
25 30 35 526 477 Om ringspalten är stor, exempelvis på grund av att en borr användes, som är betydligt mindre än kåpans genomfóringsöppning, blir lufttrycket innanför kåpans inre sarg väsentligen lika med atmosfärstrycket. If the annular gap is large, for example due to the use of a drill which is considerably smaller than the passage opening of the housing, the air pressure inside the inner rim of the housing becomes substantially equal to the atmospheric pressure.
Jag har sålunda noterat att kåpans driftsegenskaper krafiigt varierar i beroende av den använda borrens storlek relativt kåpans genomtöringsöppnin g.I have thus noticed that the operating properties of the cover vary greatly depending on the size of the drill used relative to the penetration opening of the cover.
Ett ändamål med uppfinningen är därför att anvisa en utsugningskápa, som gör det inöjligt att för olika använda borrstorlekar etablera en balans mellan å ena sidan kåpans fastsugningskraft mot underlaget och å andra sidan evakuerings- flödet genom den inre sargens öppning, då kåpan evakueras med hjälp av en konventionell dammsugningsanordning. Ändamålet uppnås genom uppfinningen.An object of the invention is therefore to provide an extraction cover which makes it impossible for different used drill sizes to establish a balance between on the one hand the suction force of the cover against the substrate and on the other hand the evacuation through the opening of the inner rim, when the cover is evacuated by means of a conventional vacuum cleaner. The purpose is achieved through the invention.
Uppfinningen definieras i det bilagda kravet l.The invention is defined in the appended claim l.
Utföringsfonner av uppfinningen anges i de bilagda osjälvständiga patentkraven.Embodiments of the invention are set forth in the appended dependent claims.
Uppfinningen är baserad på insikten att den nämnda balansen kan uppnås genom att kåpans genomtöringsöppning for borren anpassas till storleken av den borr som skall användas, så att ringspalten mellan borren och kåpans genomtörings- öppning hålles inom valda gränser. Kåpan kan sålunda förses med en anordning som möjliggör en sådan storleksanpassning av kåpans genomtöringsöppning.The invention is based on the realization that the said balance can be achieved by adapting the penetrating opening of the housing for the drill to the size of the drill to be used, so that the gap between the drill and the penetrating opening of the housing is kept within selected limits. The cover can thus be provided with a device which enables such a size adjustment of the penetration opening of the cover.
Anordningen kan ges formen av åtminstone en första hålskiva med en andra öppning som är mindre än kåpans genomföringsöppning och som är lösbart monterbar på kåpan. Naturligtvis kan anordningen även innefatta en ytterligare hålskiva med en tredje öppning, som är mindre än den första hålskivans nämnda andra öppning. Naturligtvis kan anordningen även innefatta ytterligare hålskivor med olika stora öppningar. Företrädesvis är hålskivomas öppningar anordnade för att kunna monteras till kåpan med gemensamma monteringsorgan, så att hålskivornas öppningar ligger inriktade mot varandra, och så att hålskivoma inbördes kan stödja varandra. Hålskivornas öppningar kan vara placerade så att öppningarna väsentligen tangerar varandra i närheten av tanden av kåpans genomföringsöppning, så att avståndet mellan kåpans rand och den aktuella lO 15 20 25 30 35 526 477 3 genomföringsöppningens rand kan minimeras, såsom ofta är önskvärt av utrymmesskäl, exempelvis vid borrning av hål i närheten av ett innerhöm.The device can be given the shape of at least a first perforated disc with a second opening which is smaller than the passage opening of the cover and which is releasably mountable on the cover. Of course, the device may also comprise a further perforated disc with a third opening, which is smaller than said second opening of the first perforated disc. Of course, the device may also include additional perforated discs with different sized openings. Preferably, the openings of the perforated discs are arranged to be able to be mounted to the housing with common mounting means, so that the openings of the perforated discs are directed towards each other, and so that the perforated discs can support each other. The openings of the perforated discs may be located so that the openings substantially touch each other in the vicinity of the tooth of the passage opening of the cover, so that the distance between the edge of the cover and the edge of the actual opening opening can be minimized, as is often desired for space reasons, e.g. when drilling holes near an inner corner.
Uppfinningen kommer i det följande att beskrivas i exempelform med hänvis- ning till den bilagda ritningen.The invention will in the following be described in exemplary form with reference to the accompanying drawing.
F ig. 1 visar schematiskt en planvy över en utsugningskåpa enligt uppfinningen.F ig. 1 schematically shows a plan view of an extraction cover according to the invention.
Fig. 2 visar schematiskt en sektion tagen utmed linje II-II i fig. 1.Fig. 2 schematically shows a section taken along line II-II in Fig. 1.
F ig. l visar en kåpa innefattande en botten 10 med en därtill anslutande runtom- gående yttre sarg 11 och en runtomgående inre sarg 12. Sargema 11, 12 har sina fria kanter 13 respektive 14 belägna i en definierad yta som vanligen är plan.F ig. 1 shows a cover comprising a bottom 10 with an adjoining circumferential outer rim 11 and a circumferential inner rim 12. The frame 11, 12 have their free edges 13 and 14, respectively, located in a defined surface which is usually flat.
Tätningselement 131 respektive 141 är monterade på kantema 13 och 14 för att förbättra tätningen mot en underlagsyta 17', i vilken ett hål skall borras med hjälp av en borr 20, vilken sträcker sig genom en genomföringsöppning 30 i kåpans botten 10. Borren 20 är ofta en rörborr.Sealing elements 131 and 141, respectively, are mounted on the edges 13 and 14 to improve the seal against a substrate surface 17 ', in which a hole is to be drilled by means of a drill 20, which extends through a passage opening 30 in the bottom 10. The drill 20 is often a pipe drill.
Mellan sargema 13, 14 är ett yttre ringformigt utrymme 17 etablerat. Innanför den inre sargen 12 finns ett inre utrymme 18 etablerat. En anslutningsstuds 40 ansluter genom bottnen 10 in i det yttre utrymmet 17. En dammsugareanordning är avsedd att anslutas till studsen 40. Dammsugareanordningen 40 är vanligen utformad för att försöka upprätthålla ett i förväg valt evakueringsflöde. Damm- sugaren kan på i sig känt vis innehålla avskiljningsanordningar för avskiljning av fast och flytande material från evakueringsluftströmmen.Between the frames 13, 14 an outer annular space 17 is established. Inside the inner rim 12, an inner space 18 is established. A connecting spigot 40 connects through the bottom 10 into the outer space 17. A vacuum cleaner device is intended to be connected to the spigot 40. The vacuum cleaner device 40 is usually designed to try to maintain a preselected evacuation fate. The vacuum cleaner can, in a manner known per se, contain separating devices for separating solid and surface material from the evacuation air stream.
Såsom framgår av fig. 2 är en öppning 50 anordnad i sargen 12. Öppningen 50 har en vald storlek för att säkerställa ett väsentligt undertryck i kammaren 17, för fastsugning av kåpan mot underlagsytan 17”. På ñg. 2 illustreras en speciell utföringsforrn, vari öppningen 50 har formen av en kanturtagning i sargen 12 och vari tätningslisten 141 gör ett uppehåll vid urtagningen 50.As shown in fi g. 2, an opening 50 is provided in the rim 12. The opening 50 has a selected size to ensure a substantial negative pressure in the chamber 17, for suction of the cover against the base surface 17 ". On ñg. 2 illustrates a special embodiment, in which the opening 50 has the shape of an edge recess in the rim 12 and in which the sealing strip 141 stops at the recess 50.
Enligt uppfinningen är en första hålskiva med sin periferidel tätt ansluten till kåpans botten 10 runt öppningen 30 medelst fástorgan 60. Skivan 51 har en öppning 70, som är mindre än öppningen 30. Vidare visas en ytterligare hålskiva 52 med en öppning 71, samt en ytterligare hålskiva 53 med en öppning 72. 10 15 526 477 Öppningarna 70-72 visas ha olika storlekar som är mindre än öppningen 30. Öppningarna 30, 70-72 är inriktade mot varandra. Företrädesvis är öppningama inbördes förskjutna så att de i huvudsak tangerar varandra vid ett ornkretsparti av öppningen 30, så att öppningama 70-72 får ett litet avstånd till det närliggande partiet av den yttre sargen l 1.According to the invention, a first perforated plate with its peripheral part is tightly connected to the bottom 10 of the housing around the opening 30 by means of fastening means 60. The plate 51 has an opening 70, which is smaller than the opening 30. Furthermore, a further perforated plate 52 is shown with an opening 71, and a further perforated plate 53 with an opening 72. The openings 70-72 are shown to have different sizes which are smaller than the opening 30. The openings 30, 70-72 are aligned with each other. Preferably, the openings are mutually offset so that they substantially touch each other at a groove circuit portion of the opening 30, so that the openings 70-72 have a small distance to the adjacent portion of the outer rim 11.
Fastgöringsanordningama 60 kan ha formen av parallella skruvar, som sträcker sig utåt från kåpans botten 10 och sträcker sig genom motsvarande öppningar i hålskivoma 51-53, vilka var for sig eller tillsammans kan tätt fastspännas mot kåpans botten 10 medelst muttrar, exempelvis i formen av vingmuttrar.The fastening devices 60 may be in the form of parallel screws extending outwardly from the bottom 10 of the housing and extending through corresponding openings in the hole plates 51-53, which individually or together may be tightly clamped to the bottom 10 of the housing by means of nuts, for example in the form of wing nuts .
Studsen 40 kan vara orienterad med en sned vinkel mot planet för kåpans botten 10 och vidare kan Studsen 40 vara orienterad med en spetsig vinkel mot rikt- ningen för det ringfonniga utrymmet 17.The bounce 40 may be oriented at an oblique angle to the plane of the bottom 10 of the housing and further, the bounce 40 may be oriented at an acute angle to the direction of the annular space 17.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0301421A SE526477C2 (en) | 2003-05-16 | 2003-05-16 | Suction cover is used for evacuation of drill dust and has outer and inner ring-shaped frames, free edges of which lie in common plane for sealing against a flat surface in which drill is to bore hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0301421A SE526477C2 (en) | 2003-05-16 | 2003-05-16 | Suction cover is used for evacuation of drill dust and has outer and inner ring-shaped frames, free edges of which lie in common plane for sealing against a flat surface in which drill is to bore hole |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0301421D0 SE0301421D0 (en) | 2003-05-16 |
SE0301421L SE0301421L (en) | 2004-11-17 |
SE526477C2 true SE526477C2 (en) | 2005-09-20 |
Family
ID=20291312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0301421A SE526477C2 (en) | 2003-05-16 | 2003-05-16 | Suction cover is used for evacuation of drill dust and has outer and inner ring-shaped frames, free edges of which lie in common plane for sealing against a flat surface in which drill is to bore hole |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE526477C2 (en) |
-
2003
- 2003-05-16 SE SE0301421A patent/SE526477C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE0301421D0 (en) | 2003-05-16 |
SE0301421L (en) | 2004-11-17 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |