DK147756B - Greetings with centering drill - Google Patents

Greetings with centering drill Download PDF

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Publication number
DK147756B
DK147756B DK357382A DK357382A DK147756B DK 147756 B DK147756 B DK 147756B DK 357382 A DK357382 A DK 357382A DK 357382 A DK357382 A DK 357382A DK 147756 B DK147756 B DK 147756B
Authority
DK
Denmark
Prior art keywords
neck
cutting blade
cutter
drill
hollow
Prior art date
Application number
DK357382A
Other languages
Danish (da)
Other versions
DK147756C (en
DK357382A (en
Inventor
Mahmud Ali Juma
Original Assignee
Damixa As
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 Damixa As filed Critical Damixa As
Priority to DK357382A priority Critical patent/DK147756C/en
Priority to GB08320140A priority patent/GB2127334B/en
Priority to DE19833328416 priority patent/DE3328416A1/en
Priority to SE8304301A priority patent/SE8304301L/en
Priority to FR8313097A priority patent/FR2531886A1/en
Publication of DK357382A publication Critical patent/DK357382A/en
Publication of DK147756B publication Critical patent/DK147756B/en
Application granted granted Critical
Publication of DK147756C publication Critical patent/DK147756C/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0426—Drills for trepanning with centering devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

i 147756in 147756

Opfindelsen angår en hulskærer omfattende en cylinderformet skæreklinge anbragt uden om et centreringsbor og indrettet til at kunne fastgøres i borepatron.The invention relates to a hole cutter comprising a cylindrical cutter blade arranged around a centering drill and arranged to be fixed in a drill cartridge.

De kendte hulskærere af denne type er forholdsvis dyre i frem 5 stilling, idet de nødvendiggør en række operationer til fastgørelse af skæreklingen til en holder, hvilken holder.igen skal fastgøres til et centreringsbor. Dertil kommer, at centreringsboret som regel ikke vil kunne anvendes til andet formål.The known hollow cutters of this type are relatively expensive in the forward position, necessitating a number of operations for securing the cutting blade to a holder which is to be attached to a centering drill. In addition, the centering drill will usually not be usable for other purposes.

Formålet med opfindelsen er at tilvejebringe en hulskærer, 10 der er billigere i fremstilling. En hulskærer af den indledningsvis nævnte art er ifølge opfindelsen ejendommelig ved, at den cylinderformede skæreklinge er formet ud i ét med en hals, der har en mindre diameter end selve skæreklingen, hvilken hals tæt omslutter centreringsboret, og at halsen og cen-15 treringsboret er indrettet til at kunne fastholdes i forhold til hinanden ved indspænding i borepatronen. Derved sparer fabrikanten at skulle fastgøre skæreklingen til centrerings-boret, hvorved hulskæreren billiggøres.The object of the invention is to provide a hollow cutter 10 which is cheaper in manufacture. According to the invention, a hollow cutter of the type mentioned in the invention is characterized in that the cylindrical cutting blade is formed integrally with a neck having a smaller diameter than the cutting blade itself, which neck tightly encloses the centering drill, and that the neck and centering drill are arranged to be held relative to each other by clamping in the drill cartridge. This saves the manufacturer from having to attach the cutting blade to the centering drill, thereby lowering the hole cutter.

I en særlig hensigtsmæssig udførelsesform har skæreklingen 20 en i akseretningen langsgående slids, idet den derved vil kunne fremstilles at et bånd.In a particularly convenient embodiment, the cutting blade 20 has a longitudinal axis extending longitudinally, thereby being able to be made into a band.

Skæreklingens hals kan med fordel have flere, eksempelvis tre, langsgående slidser. Derved lettes indspændingen i borepatronen, især hvis antallet af slidser svarer til antallet 25 af kloer i borepatronen.The neck of the cutting blade can advantageously have several, for example three, longitudinal slots. This facilitates clamping in the drill cartridge, especially if the number of slots corresponds to the number of clear 25 in the drill cartridge.

Alternativt kan skæreklingens hals være udvendig aftrappet eller konisk.Alternatively, the cutter's neck may be externally stepped or tapered.

Den cylinderformede skæreklinge kan være forsynet med huller, idet spåner herved fordelagtigt kan fjernes under skæreope-30 rationen.The cylindrical cutting blade may be provided with holes, which chips can advantageously be removed during the cutting operation.

147756 2147756 2

Opfindelsen skal nærmere forklares i det følgende under henvisning til tegningen, hvor fig. 1 viser en hulskærer ifølge opfindelsen, monteret på et centreringsbor, 5 fig. 2 hulskæreren set oppefra, fig. 3 hulskæreren set fra siden.The invention will be explained in more detail below with reference to the drawing, in which 1 shows a hollow cutter according to the invention mounted on a centering drill; FIG. 2 is a top view of the hole cutter; FIG. 3 side cutter cutter.

Ved montering af armaturer, såsom vandhaner, skal der som regel bores et hul i f.eks. en bordplade. I mange tilfælde vil det være hensigtsmæssigt ved levering af en armatur even-10 tuelt at medlevere en hulskærer, der er forholdsvis billig i fremstilling. Den i fig. 1 viste hulskærer viser en cylinderformet skæreklinge 1, som i forbindelse med et centreringsbor 2 kan.fastgøres i en ikke vist borepatron. Ifølge opfindelsen er den cylinderformede skæreklinge 1 formet ud i ét 15 med en eventuelt opslidset hals 3, der tæt omslutter centreringsboret 2, idet skæreklingen 3 og centreringsboret kan fastholdes i forhold til hinanden ved indspænding af halsen i borepatronen. Der opnås en særlig sikker fastholdelse, hvis antallet af slidser 4 i skæreklingens hals svarer til 20 antallet af kloer i borepatronen. Hvis en af slidserne er gennemgående - se fig. 3 - vil man desuden lettere kunne fjerne det udborede materiale, der sidder tilbage i hulskæreren.When installing fixtures, such as taps, a hole must usually be drilled in e.g. a counter top. In many cases, it will be appropriate to provide a hole cutter which is relatively inexpensive in manufacture when supplying a fixture. The FIG. 1 shows a cylindrical cutting blade 1 which can be fixed in connection with a centering drill 2 in a drill cartridge not shown. According to the invention, the cylindrical cutter blade 1 is formed into one 15 with a possibly slit neck 3, which closely encloses the centering drill 2, the cutting blade 3 and the centering drill can be held relative to one another by clamping the neck into the drill cartridge. Particularly secure retention is obtained if the number of slots 4 in the throat of the cutter corresponds to the number of clear in the drill cartridge. If one of the slots is continuous - see fig. 3 - it will also be easier to remove the drilled material left in the hole cutter.

Hulskæreren har fortrinsvis en ydre diameter på ca. 32 mm og er fordelagtig derved, at den vil kunne anvendes i forbindel-25 se med de bor, eksempelvis et 8 mm bor, og den boremaskine, brugeren allerede er i besiddelse af.The hole cutter preferably has an outer diameter of approx. 32 mm and is advantageous in that it can be used in conjunction with those drills, for example an 8 mm drill bit, and the drill already in the user's possession.

Hulskæreren tilvejebringes i den foretrukne udførelsesform ved udstansning af et bånd, eventuelt et savklingebånd, der rulles og deformeres. Derved opnås en særlig robust hulskæ-30 rer, dels på grund af den deformationshærdning, der finder sted, dels på grund af det moment deformeringen giver hul-The hole cutter is provided in the preferred embodiment by punching a belt, optionally a saw blade belt which is rolled and deformed. Thus, a particularly robust hole cutter is obtained, partly because of the deformation hardening that takes place and partly because of the moment the deformation gives the hole

Claims (5)

147756 skæreren. Tolerancerne er ikke særligt kritiske. Dertil kommer, at modstandsmomentet muliggør en vis materialebesparelse. I en alternativ udførelsesform er skæreklingen en ubrudt 5 cylinder med en udvendig aftrappet eller konisk hals. Hulskærerener fortrinsvis fremstillet af hårdt stål.147756 cutter. The tolerances are not very critical. In addition, the resistance torque allows for some material saving. In an alternative embodiment, the cutting blade is an unbroken 5 cylinder with an externally stepped or tapered neck. Hollow cutters are preferably made of hard steel. 1. Hulskærer omfattende en cylinderformet skæreklinge (1) anbragt uden om et centreringsbor (2) og indrettet til at kunne fastgøres i en borepatron, kendetegnet ved, 10 at den cylinderformede skæreklinge er formet ud i ét med en hals (3), der har en mindre diameter end selve skæreklingen (1), hvilken hals (3) tæt omslutter centreringsboret (2), og at halsen og centreringshoret er indrettet til at kunne fastholdes i forhold til hinanden ved indspænding 15 i borepatronen.A hole cutter comprising a cylindrical cutter blade (1) disposed around a centering drill (2) and arranged to be secured to a drill cartridge, characterized in that the cylindrical cutter blade is integrally formed with a neck (3) having a smaller diameter than the cutting blade itself (1), which neck (3) tightly encloses the centering drill (2), and that the neck and centering horn are arranged to be held relative to each other by clamping 15 in the drill cartridge. 2. Hulskærer ifølge krav 1, kendetegnet ved, at skæreklingen (1) har en i akseretningen langsgående slids (fig. 3).Hollow cutter according to claim 1, characterized in that the cutting blade (1) has a longitudinal slot in the axial direction (Fig. 3). 3. Hulskærer ifølge krav 1, kendetegnet ved, at 20 skæreklingens hals (3) har flere, eksempelvis tre, langsgående slidser (4).Hollow cutter according to claim 1, characterized in that the neck (3) of the cutting blade has several, for example three, longitudinal slots (4). 4. Hulskærer ifølge krav 1, kendetegnet ved, at skæreklingens hals er udvendig aftrappet.Hollow cutter according to claim 1, characterized in that the neck of the cutting blade is externally stepped. 5. Hulskærer ifølge krav 1, kendetegnet ved, at 25 skæreklingens hals er udvendig konisk.Hollow cutter according to claim 1, characterized in that the neck of the cutting blade is externally tapered.
DK357382A 1982-08-09 1982-08-09 Greetings with centering drill DK147756C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK357382A DK147756C (en) 1982-08-09 1982-08-09 Greetings with centering drill
GB08320140A GB2127334B (en) 1982-08-09 1983-07-26 A hole saw having a centre drill
DE19833328416 DE3328416A1 (en) 1982-08-09 1983-08-05 HOLE CUTTER WITH CENTER DRILL
SE8304301A SE8304301L (en) 1982-08-09 1983-08-08 HALSKERARE
FR8313097A FR2531886A1 (en) 1982-08-09 1983-08-09 ROTARY DRILLING TOOL IN THE FORM OF A HOLE SAW AND A CENTRAL DRILL, PARTICULARLY FOR FITTINGS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK357382A DK147756C (en) 1982-08-09 1982-08-09 Greetings with centering drill
DK357382 1982-08-09

Publications (3)

Publication Number Publication Date
DK357382A DK357382A (en) 1984-02-10
DK147756B true DK147756B (en) 1984-12-03
DK147756C DK147756C (en) 1985-05-20

Family

ID=8124427

Family Applications (1)

Application Number Title Priority Date Filing Date
DK357382A DK147756C (en) 1982-08-09 1982-08-09 Greetings with centering drill

Country Status (5)

Country Link
DE (1) DE3328416A1 (en)
DK (1) DK147756C (en)
FR (1) FR2531886A1 (en)
GB (1) GB2127334B (en)
SE (1) SE8304301L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9206629U1 (en) * 1992-05-15 1993-09-16 Stema Baugeräte-Vertriebs- und Vermietungs GmbH, 25421 Pinneberg Drilling tool
CN1319706C (en) * 2003-01-10 2007-06-06 庄良峰 Method for directly producing hole saw teeth ring by using bimetal saw band

Also Published As

Publication number Publication date
FR2531886B3 (en) 1985-03-08
GB2127334A (en) 1984-04-11
SE8304301L (en) 1984-02-10
DE3328416A1 (en) 1984-03-15
DK147756C (en) 1985-05-20
GB8320140D0 (en) 1983-08-24
FR2531886A1 (en) 1984-02-24
GB2127334B (en) 1985-11-06
DK357382A (en) 1984-02-10
SE8304301D0 (en) 1983-08-08

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