DK150729B - DRILL UNIT FOR MANUFACTURING CUTTING DRILLS - Google Patents

DRILL UNIT FOR MANUFACTURING CUTTING DRILLS Download PDF

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Publication number
DK150729B
DK150729B DK151782A DK151782A DK150729B DK 150729 B DK150729 B DK 150729B DK 151782 A DK151782 A DK 151782A DK 151782 A DK151782 A DK 151782A DK 150729 B DK150729 B DK 150729B
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DK
Denmark
Prior art keywords
drill
borehole
impact
tool
bell
Prior art date
Application number
DK151782A
Other languages
Danish (da)
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DK151782A (en
DK150729C (en
Inventor
Artur Fischer
Original Assignee
Artur Fischer
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 Artur Fischer filed Critical Artur Fischer
Publication of DK151782A publication Critical patent/DK151782A/en
Publication of DK150729B publication Critical patent/DK150729B/en
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Publication of DK150729C publication Critical patent/DK150729C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/0018Drills for enlarging a hole
    • B23B51/0027Drills for enlarging a hole by tool swivelling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/005Attachments or adapters placed between tool and hammer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Drilling And Boring (AREA)
  • Drilling Tools (AREA)
  • Crushing And Grinding (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

1. Drill unit for producing drill holes (11) having an undercut (10), and comprising a drill with a small drilling bit (2) having lateral cutting edges that project radially from the drill shaft (1), a drill holder (4) having a stop collar (6) which, to form a swivel bearing, is supported in a recess (7) of a stop plate (9) mounted over the drill shaft (1), and a drill bell (13) for attachment to the stop plate (9) and provided with a suction union (14), characterised in that there can be mounted over the stop plate end of the drill bell (13) a cover plate (18) adjacent to which is arranged a tubular punch (17) that can be mounted over the drill and the end of which matches the dowel (16) to be fastened in the drill hole.

Description

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IbU'/ZVIbu '/ ZV

Den foreliggende opfindelse angår en boreenhed til fremstilling af underskårne borehuller til indsætning af dyvler og bestående af et bor med en boreplatte med sideskær, der rager uden for borskaftet, en borepatron med et 5 anslagsbryst, der afstøttes i en fordybning i en ind over borskaftet krænget anslagsplade til dannelse af et svingleje, og en med anslagspladen forbindbar boreklokke, som er forsynet med en udsugningsstuds.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling unit for the production of cut holes for inserting dowels and consisting of a drill with a side cutter drill protruding outside the drill shaft, a drill cartridge with a punching chest supported in a recess in an over drill shaft. an impact plate for forming a pivot bearing, and a drill bell connected to the impact plate which is provided with a suction plug.

En sådan boreenhed muliggør på enkel måde frem- 10 stillingen af boringer med en underskæring i bunden af hullet ved svingning af boret, når den ønskede borehulsdybde er opnået. Anslagspladen overtager herved det tilpresningstryk, som opstår ved bore- og svingningsprocessen. I det således forberedte borehul indsættes en dyvel, der er således udfor-15 met, at den lader sig udsprede i borehullets underskæring. Derved opnås der en forankring på basis af hullets og dyvlens form, hvor høje holdeværdier sikres selv når borehullet er faldet ud med en større diameter, dvs. når der ved loftfastgørelser på grund af revner indtræder en senere forøgelse 20 af borehullets diameter.Such a drilling unit easily enables the preparation of bores with a cut in the bottom of the hole by pivoting the bore when the desired borehole depth is achieved. The impact plate thereby assumes the pressing pressure that arises during the drilling and oscillation process. Into the borehole thus prepared is inserted a dowel which is designed to disperse in the borehole undercut. This provides an anchoring on the basis of the shape of the hole and the devil, where high holding values are ensured even when the borehole has fallen out with a larger diameter, ie. when, due to cracks due to cracks, a later increase in diameter of the borehole 20 occurs.

Til forankring af dyvler kendes der indslagsværktøjer, der bl.a. lader sig indspænde i borehamre og slagboremaskiner. Ulempen ved sådanne indslagsværktøjer består i, at der enten skal anvendes en anden slagboremaskine til indslagsværktøjet 25 eller skal ske en udveksling af boret mod indslagsværktøjet.Knotting tools are known for anchoring dowels, which include. can be clamped in drill hammers and impact drills. The disadvantage of such insert tools is that either a second impact drill must be used for the insert tool 25 or an exchange of the drill has to be made against the insert tool.

Den opgave, som ligger til grund for opfindelsen er at fremskaffe en boreenhed ved hvilken denne ulempe ikke mere optræder.The object of the invention is to provide a drilling unit at which this disadvantage no longer occurs.

I henhold til opfindelsen opnås dette ved, at der hen 30 over den af anslagspladen dannede endeflade af boreklokken er påsat en afdæmpningsskive, på hvilken der er anbragt et ind over boret påsætteligt, rørformet indslagsværktøj, hvis endeflade er tilpasset til dyvlen, som skal forankres i borehullet.According to the invention, this is achieved by affixing over the end face of the drill bell formed over the abutment plate to a damping disc, on which is mounted a tubular insertable tool, which is fitted over the drill, the end face of which is to be anchored to the drill. borehole.

35 Efter fremstillingen af borehullet med boreenheden påsættes der på endefladen af boreklokken den med indslagsværktøjet forsynede afdækningsskive, idet boringen i indslagsværktøjet har større diameter end bredden af boreplatten og er 150729 2 længere end endefladen af den ud over boreklokken ragende del af boret. Yderdiameteren af dyvlen svarer til borehullets diameter og dermed til bredden af boreplatten. Derfor må boringen af indslagsværktøjet i området ved dets ende være 5 reduceret, således at det er muligt at få et anlæg mod endefladen af dyvlen. Med slagboremaskinen påfører man nu ved hjælp af boreenheden og indslagsværktøjet slagvirknin gen på dyvelbøsningen, og driver derved denne ind over det mod borehullets bund hvilende spredelegeme ind i underskærin-10 gen af borehullet. Ved hjælp af afdækningsskiven fastholdes indslagsværktøjet og en kantning ved inddrivningen af dyvel-bøsningen undgås.After making the borehole with the drilling unit, the cover disc provided with the insert tool is mounted on the end face of the drill bell, the bore of the insert tool having a larger diameter than the width of the drill plate and being longer than the end surface of the portion extending beyond the drill bell. The outer diameter of the die corresponds to the borehole diameter and thus to the width of the drill plate. Therefore, the drilling of the impact tool in the region at its end must be reduced, so that it is possible to get an abutment against the end surface of the dowel. With the impact drill, the impact device is now applied to the dowel sleeve by means of the drilling unit and the impact tool, thereby pushing it over the spreading body resting against the bottom of the borehole into the undercut of the borehole. By means of the cover disc, the weft tool is retained and an edge at the drive-in of the dowel bush is avoided.

I henhold til en udførelsesform ifølge opfindelsen kan indslagsværktøjet være afstøttet umiddelbart på anslags-15 pladen. Indslagsværktøjet består fortrinsvis af en hærdet stålbøsning. Ved den umiddelbare afstøtning af indslagsværktø-jet mod anslagspladen overføres slagvirkningen fra slagboremaskinen næsten udæmpet til dyvelbøsningen.According to an embodiment of the invention, the impact tool may be supported immediately on the impact plate. The impact tool preferably consists of a hardened steel bush. Upon immediate repulsion of the impact tool against the impact plate, the impact of the impact drill is almost completely attenuated to the dowel bush.

Endelig kan der i henhold til en komplettering ifølge 20 opfindelsen på indslagsværktøjet påsættes en ind i borehullet passende sugedyse. På grund af den rørformede udformning af indslagsværktøjet er det muligt at påsætte en sugedyse ind over indslagsværktøjet og fast på dette, således at boremel kan udsuges fra borehullet ved hjælp af en på udsugningsstudsen på 25 borehullet tilsluttet udsugningsindretning. Derved bliver også ved udsugningen en udspænding af boreenheden overflødig. Desuden sker der ved den hen over boret ledede luftstrøm en afkøling af boret efter hver boreproces.Finally, according to a supplement according to the invention, a suction nozzle suitable for insertion into the borehole can be applied to the impact tool. Due to the tubular configuration of the insert tool, it is possible to apply a suction nozzle over the insert tool and fasten it so that drill flour can be extracted from the borehole by means of a suction device connected to the extraction nozzle of the 25 borehole. This also results in an extraction of the drilling unit during extraction. In addition, the air flow conducted over the drill cools the drill after each drilling process.

I tegningen er der vist et udførelseseksempel på opfin-30 delsen. På tegningen viser fig. 1 en boreenhed med påsat afdækningsskive og indslagsværktøj til forankring af dyvlen, og fig. 2 en på indslagsværktøjet påsat sugedyse.In the drawing, an exemplary embodiment of the invention is shown. In the drawing, FIG. 1 shows a drilling unit with cover plate mounted and insert tool for anchoring the dowel; and FIG. 2 is a suction nozzle mounted on the insert tool.

Boret består af et borskaft 1 og en med dette forbundet 35 boreplatte 2. Til bortføring af boremel er borskaftet 1 forsynet med omkring skaftet i skruelinjeform forløbende noter 3. Til forbindelse af boret med borepatronen 4 har dette et udvendigt rundgevind 5, som passer ind i et tilsvarende ind- 150729 3 vendigt gevind på borepatronen 4. Borepatronen. 4 er forsynet med et halvkugleformigt udformet anslagsbryst 6. Dette anslagsbryst 6 støtter mod en fordybning 7 i en mod overfladen af murværket 8 ved boringen anliggende anslagsplade 9. Derved 5 fremkommer der et svingleje, som muliggør at man under boreprocessen svinger boret og ved en omrøring udformer en underskæring 10 i borehullet 11. Den del af anslagspladen 9, som bærer fordybningen 7 er fortrinsvis hærdet og indlejret i en metalskive 9a. Til centrering og fastholdelse af anslags-10 pladen 9 har denne en bøsningsformet centreringsansats 12, der griber ind i borehullet 11.The drill consists of a drill shaft 1 and a drill plate 2. Connected to the drill flour, the drill shaft 1 is provided with grooves extending around the shaft 3. For connection of the drill with the drill cartridge 4, this has an external round thread 5 which fits into the drill bit. a corresponding internal thread on the drill cartridge 4. The drill cartridge. 4 is provided with a hemispherical abutment breast 6. This abutment 6 bears against a recess 7 in a abutment plate 9 abutting against the surface of the masonry 8, thereby providing a pivot bearing which enables the drill to swing during the drilling process and with a stirring forming an undercut 10 in the borehole 11. The portion of the impact plate 9 supporting the recess 7 is preferably cured and embedded in a metal disc 9a. For centering and retaining the stop plate 9, it has a sleeve-shaped centering stop 12 which engages the borehole 11.

Til udsugning af boremelet og bedre håndtering er anslagspladen 9 ved hjælp af en bajonetlås, stiftforbindelse, skrueforbindelse eller lignende forbundet med en boreklokke 15 13, som er forsynet med en i sideretningen opstående, som håndgreb udformet udsugningsstuds 14. På denne udsugningsstuds 14 er der tilsluttet en slange 15 til en udsugningsindretning.For extraction of the drill meal and better handling, the impact plate 9 is connected by means of a bayonet lock, pin connection, screw connection or the like to a drill bell 15 13, which is provided with a lateral upright shaped suction plug 14. a hose 15 for a suction device.

Til forankring af dyvlen 16 i det forberedte borehul 20 påsættes der på endefladen af boreklokken 13 en med et indslagsværktøj 17 forsynet afdækningsskive 18, der til dette formål har en ind over omkredsfladen af boreklokken gribende flange 19. Fastholdelsen af indslagsværktøjet 17 i afdækningsskiven 18 er således udformet, at det hærdede indslagsværktøj 25 umiddelbart er afstøttet mod den af metal bestående anslagsplade 9. Boringsdiameteren af indslagsværktøjet 17 er noget større end bredden af boreplatten 12, således at indslagsværktøjet lader sig påsætte hen over boret. Den mod dyvelbøsningen hvilende endeflade 17a af indslagsværktøjet 17 er i tilpasning 30 til dimensionerne af dyvelbøsningen reduceret i diameter.To anchor the die 16 in the prepared borehole 20, a cover disc 18 provided with an insert tool 17 is provided on the end surface of the drill bell 13, which for this purpose has a flange 19 engaging the circumferential surface of the drill bell 19. The retaining tool 17 is thus in the cover disc The bore diameter of the impact tool 17 is somewhat larger than the width of the drill plate 12 so that the impact tool can be applied over the drill bit. The end surface 17a resting against the dowel bush 17 of the weft tool 17 is reduced in diameter 30 to the dimensions of the dowel bush.

Ved hjælp af indslagsværktøjet 17, anslagspladen 9 og borepatronen 4 overføres slagvirkningen fra slagboremaskinen 20 på dyvelbøsningen. Ved at spredelameller 16a glider op på konusen af det mod borehullets bund hvilende spredelegeme 35 21 udspredes dyvlen i underskæringen 10 af borehullet.By means of the impact tool 17, the impact plate 9 and the drill cartridge 4, the impact of the impact drill 20 on the dowel bush is transferred. By spreading slats 16a slide up on the cone of the spreading body 35 21 resting against the bottom of the borehole, the die is spread in the undercut 10 of the borehole.

Såfremt boremelet i borehullet ikke allerede ved boringen i tilstrækkelig grad er blevet udsuget, kan der inden inddrivningen af dyvlen foretages endnu en borehulsrensning.If the borehole in the borehole has not already been sufficiently extracted at the borehole, a further borehole cleaning can be performed before the drill is recovered.

150729 4150729 4

Til dette formål påsættes der på indslagsværktøjet 17 ifølge fig. 2 en ind i borehullet 11 passende sugedyse 22 og denne skydes ind i borehullet med tilsluttet udsugningsindretning. Boremelet suges derved ved hjælp af sugedysen 22, det rørfor-5 mede indslagsværktøj 17, boreklokken 13 og den på boreklokken anbragte udsugningsstuds 14. Således er det ved boreenheden ifølge opfindelsen hverken ved udsugning eller ved forankring af dyvlen nødvendigt at foretage en udspænding af boreenheden.For this purpose, the weft tool 17 of FIG. 2, a suction nozzle 22 which fits into the borehole 11 and is inserted into the borehole with the suction device connected. The drill bit is thereby sucked by means of the suction nozzle 22, the tubular insert tool 17, the drill bell 13 and the suction nozzle placed on the drill bell. Thus, in the drilling unit according to the invention, neither the drilling unit nor the anchor is anchored.

DK151782A 1981-04-18 1982-04-02 DRILL UNIT FOR MANUFACTURING CUTTING DRILLS DK150729C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813115815 DE3115815A1 (en) 1981-04-18 1981-04-18 DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE3115815 1981-04-18

Publications (3)

Publication Number Publication Date
DK151782A DK151782A (en) 1982-10-19
DK150729B true DK150729B (en) 1987-06-09
DK150729C DK150729C (en) 1987-12-07

Family

ID=6130505

Family Applications (1)

Application Number Title Priority Date Filing Date
DK151782A DK150729C (en) 1981-04-18 1982-04-02 DRILL UNIT FOR MANUFACTURING CUTTING DRILLS

Country Status (10)

Country Link
EP (1) EP0063679B1 (en)
JP (1) JPS5919803B2 (en)
AT (1) ATE15005T1 (en)
BR (1) BR8202199A (en)
DE (1) DE3115815A1 (en)
DK (1) DK150729C (en)
ES (1) ES264494Y (en)
GR (1) GR75130B (en)
HU (1) HU186924B (en)
YU (1) YU44420B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3522255A1 (en) * 1985-06-21 1987-01-02 Fischer Artur Dr H C Device which can be clamped in a hammer drill or percussion drilling machine
DE3803708A1 (en) * 1988-02-08 1989-08-17 Fischer Artur Werke Gmbh Assembly device for percussion drilling machines
DE3912317A1 (en) * 1989-04-14 1990-10-18 Fischer Artur Werke Gmbh IMPACT TOOL FOR IMPACT ANCHORS
DE3916611A1 (en) * 1989-05-22 1990-11-29 Fischer Artur Werke Gmbh DRIVING DEVICE FOR IMPACT ANCHORS WITH SPREADING SLEEVE
EP0416182B1 (en) * 1989-09-08 1993-11-24 Kabushiki Kaisha Miyanaga Driving mechanism for anchor
EP0426918A1 (en) * 1989-11-09 1991-05-15 Louis N. Giannuzzi Automatic setting tool for masonry anchors
DE4132228A1 (en) * 1991-09-27 1993-04-01 Fischer Artur Werke Gmbh DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE4133848A1 (en) * 1991-10-12 1993-04-15 Fischer Artur Werke Gmbh Masonry drill for forming to back cuttings - has first distance piece as rest for second distance piece which slides or pushes over first
DE102006037881A1 (en) * 2006-08-11 2008-02-14 Fischerwerke Artur Fischer Gmbh & Co. Kg Hand-held tool has drill bit with removable undercut milling bit for high-security anchorage attachment
CN104107937A (en) * 2013-04-19 2014-10-22 苏州文鼎模具有限公司 Stepped drill with replaceable drilling edges
JP7049873B2 (en) * 2018-03-20 2022-04-07 株式会社マキタ Dust collection bit and rotary striking tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007795A (en) * 1976-02-13 1977-02-15 Skil Corporation Attachment for a rotary-hammer tool

Also Published As

Publication number Publication date
JPS5919803B2 (en) 1984-05-09
ATE15005T1 (en) 1985-09-15
DE3115815A1 (en) 1982-12-30
HU186924B (en) 1985-10-28
YU74582A (en) 1986-06-30
ES264494Y (en) 1983-05-16
BR8202199A (en) 1983-03-29
EP0063679A2 (en) 1982-11-03
EP0063679A3 (en) 1983-07-27
EP0063679B1 (en) 1985-08-21
ES264494U (en) 1982-11-16
DK151782A (en) 1982-10-19
YU44420B (en) 1990-08-31
DK150729C (en) 1987-12-07
GR75130B (en) 1984-07-13
JPS57181817A (en) 1982-11-09

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