DE4138804A1 - Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute - Google Patents

Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute

Info

Publication number
DE4138804A1
DE4138804A1 DE19914138804 DE4138804A DE4138804A1 DE 4138804 A1 DE4138804 A1 DE 4138804A1 DE 19914138804 DE19914138804 DE 19914138804 DE 4138804 A DE4138804 A DE 4138804A DE 4138804 A1 DE4138804 A1 DE 4138804A1
Authority
DE
Germany
Prior art keywords
drill
chamfering
tool
countersink
recess
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.)
Ceased
Application number
DE19914138804
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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
Priority claimed from DE19914121695 external-priority patent/DE4121695A1/en
Application filed by Individual filed Critical Individual
Priority to DE19914138804 priority Critical patent/DE4138804A1/en
Publication of DE4138804A1 publication Critical patent/DE4138804A1/en
Ceased 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
    • B23B51/10—Bits for countersinking
    • 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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

In the first version fo the tool the jaws of the drill chuck have inclined cutting edges which are lowered onto the corner of the hole to chamfer the corner when the drill has penetrated the work. In a second version of the tool the chamfering tool bit is hinged in a recess machined into the flute of the twist drill. During drilling the tool bit pivots away from the hole wall into the recess. To chamfer the corners of the hole the tool bit is carefully positioned at the hole corners and the drill rotated in reverse. ADVANTAGE - Drilling and chamfering can be done in one operation, thereby saving time and cost.

Description

Stand der TechnikState of the art

Zur Herstellung entgrateter bzw. angesenkter Bohrungen werden derzeit mehrere Arbeitsgänge oder mehrere Arbeitsplätze benötigt. Der Zeitaufwand bzw. die Anlagekosten sind dadurch entsprechend hoch.For the production of deburred or countersunk Drilling is currently going through multiple operations or multiple jobs needed. The amount of time or the investment costs are accordingly high.

Erfindunginvention

Der Erfindung liegt die Aufgabe zugrunde, die Her­ stellkosten entgrateter bzw. angesenkter Bohrungen zu reduzieren. Erfindungsgemäß wird diese Aufgabe durch Verwendung von
I. in Bohrfutter bzw.
II. in Bohrer
integrierte Senkerschneiden/-einsätze gelöst.The invention has for its object to reduce the manufacturing costs deburred or countersunk holes. According to the invention, this object is achieved by using
I. in drill chuck or
II. In drill
integrated countersink cutting / inserts solved.

Zu I. Bohrfuttersenker:
Die Spannbacken der Bohrfutter werden an ihrem äußeren Ende so gestaltet, daß sie Schneiden wie herkömmliche Senker/Entgrater besitzen (siehe Prinzipskizze, Anlage 3).For I. drill chuck:
The jaws of the drill chucks are designed at their outer ends so that they have cutting edges like conventional countersinks / deburrers (see schematic diagram, Appendix 3).

Diese Senkerschneiden sind so konstruiert, daß sie bei allen, von der Bohrfuttergröße abhängigen, Bohrer­ größen mit der Senkerspitze am Bohrerschaft anliegen und somit eine durchgehend glatte Fase/Senkung er­ zeugen.These countersink cutting edges are designed so that they for all drills that depend on the chuck size sizes with the countersink tip on the drill shank and thus a consistently smooth chamfer / countersink testify.

Die Backen des Bohrfuttersenkers (BS) sind auswechsel­ bar bzw. besitzen auswechselbare Einsätze. Montage und Demontage der Bohrer wird entsprechend der herkömmlichen Bohrfutter gehandhabt. The jaws of the drill chuck countersink (BS) must be replaced cash or have interchangeable inserts. Assembly and disassembly of the drill is made accordingly the conventional drill chuck.  

Nachdem eine Bohrung eingebracht ist, wird der BS bis zur Werkstückoberfläche abgesenkt und die Bohrung entgratet (Anwendung nur bei Durchgangsbohrungen möglich).After a hole is drilled, the BS lowered to the workpiece surface and the hole deburred (application only for through holes possible).

Die Spannbacken sind bei BS länger als die von her­ kömmlichem Bohrfutter, damit der BS auch bei Bohrern mit größeren Durchmessern verwendet werden kann.The jaws at BS are longer than before conventional drill chuck, so the BS also with drills can be used with larger diameters.

II. in Bohrer integrierte Senker:
Im Vergleich zu herkömmlichen Bohrern besitzen Bohrer mit integrierten Senkern (IS) in eine oder beide Bohrerwendel integrierte Senkereinsätze (siehe Prinzip­ skizze, Anlage 3).II. Countersinks integrated in the drill:
In comparison to conventional drills, drills with integrated countersinks (IS) have countersink inserts integrated into one or both drill coils (see principle sketch, Appendix 3).

Diese Senkereinsätze sind ca. einem Bohrerdurchmesser entsprechend von der Bohrerspitze entfernt, in Aussparungen der Bohrerwendeln, angebracht.These countersink inserts are approx. One drill diameter accordingly from the drill tip, in recesses the drill coils.

Die Form und Lage der Senkereinsätze ist für die Funk­ tion des IS sehr wichtig. Infolge seiner Form (Keil­ form entgegen der Drehrichtung des Bohrers) wird der IS von der Bohrungswand in die Aussparung des Bohrers versenkt. Sobald der IS aus der Bohrung austritt, klappt er unter Federbelastung bis zum Anschlag in seine Arbeitsstellung. Durch Ändern der Bohrerdrehrichtung wird der Senk-/Entgratungsvorgang eingeleitet. Der Senkeinsatz wird vorsichtig an die Bohrungskante zum Entgraten/Ansenken der Bohrung herangeführt. Bohrungen können damit an allen Austritts­ stellen (unterbrochene Bohrungen) entgratet werden. The shape and position of the counterbore inserts is for the radio tion of the IS is very important. Due to its shape (wedge shape against the direction of rotation of the drill) IS from the hole wall into the recess of the drill sunk. As soon as the IS is out of the Hole emerges, it folds up under spring load to the stop in its working position. By changing the Drill direction of rotation becomes the lowering / deburring process initiated. The countersink is carefully attached to the Hole edge for deburring / countersinking the hole introduced. Drilling can be done at all exits places (interrupted holes) are deburred.  

Erzielbare VorteileAchievable advantages

Sowohl beim Bohrfuttersenker (BS) als auch beim Integralsenker (IS) können Bohrungen ohne Werkzeug- Arbeitsplatzwechsel entgratet/angefast/angesenkt werden. Herstellzeit und -Aufwand entgrateter Bohrungen können dadurch wesentlich reduziert werden. Der BS kann für alle in das Bohrfutter passende Bohrer verwendet werden, bzw. auch ohne eingespannten Bohrer als reiner Senker angewandt werden. Mit dem IS können sowohl Durchgangsbohrungen als auch von Aussparungen unterbrochene Bohrungen an allen Austrittskanten bearbeitet werden. Sowohl der BS als auch der IS kann beim Senken usw. nicht verlaufen, da sie durch den Bohrer zentriert werden.Both for the drill chuck (BS) and the Integral countersinks (IS) can drill holes without tools Change of job deburred / chamfered / countersunk will. Manufacturing time and effort for deburred bores can be significantly reduced. The BS can fit into the chuck for everyone Drills are used, or even without clamped Drills can be used as pure countersink. With the IS both through holes and also holes interrupted by recesses on all Trailing edges are processed. Both the BS and the IS can lower, etc. do not run as they are centered by the drill will.

Claims (8)

1. Integrierte Senker zur Herstellung entgrateter/ange­ senkter/angefaster Bohrungen in einem Arbeitsgang dadurch gekennzeichnet, daß der sog. BS an den äußeren Enden der Spannbacken entsprechende Senkerschneiden besitzt.1. Integrated countersink for producing deburred / countersunk / chamfered bores in one operation, characterized in that the so-called. BS has corresponding countersink cutting edges at the outer ends of the clamping jaws. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß diese Senkerschneiden in die Spannbacken fest inte­ griert oder auch auswechselbar gestaltet sind.2. Device according to claim 1, characterized in that these countersinks are firmly integrated in the jaws griert or are designed interchangeable. 3. Vorrichtung nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die Senkerschneiden aus allen möglichen Schneidwerkstoffen (Hartmetall usw.) ge­ fertigt sein können.3. Device according to the preceding claims, characterized characterized that the countersink cutting from all possible cutting materials (hard metal, etc.) ge can be made. 4. Vorrichtung nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die bei allen Bohrfuttergrößen und -Arten angewandt werden können.4. Device according to the preceding claims, characterized characterized in that for all drill chuck sizes and types can be applied. 5. Vorrichtung zur Herstellung entgrateter/angesenkter/ange­ faster Bohrungen in einem Arbeitsgang, dadurch ge­ kennzeichnet, daß die sog. IS in die Bohrerwendeln beweglich integriert sind.5. Device for producing deburred / countersunk / ang faster drilling in one operation, thereby ge indicates that the so-called IS is flexibly integrated into the drill coils are. 6. Vorrichtung nach dem Anspruch 5, dadurch gekennzeichnet, daß die Senkereinsätze so gestaltet sind, daß sie beim Bohren in die Aussparung des Bohrers versenkt werden.6. The device according to claim 5, characterized in that that the countersink inserts are designed so that they Drilling can be sunk into the recess of the drill. 7. Vorrichtung nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, daß ihre Arbeitsdrehrichtung (Schnei­ denrichtung) entgegen der Schneidenrichtung des Bohrers gerichtet ist.7. Device according to claims 5 and 6, characterized characterized that their working direction (Schnei denrichtung) against the cutting direction of the Is directed. 8. Vorrichtung nach den Ansprüchen 5, 6 und 7, dadurch gekennzeichnet, daß die Senkereinsätze aus allen möglichen Schneidenwerkstoffen hergestellt werden können.8. Device according to claims 5, 6 and 7, characterized characterized that the countersink inserts from all possible cutting materials can.
DE19914138804 1991-06-29 1991-11-26 Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute Ceased DE4138804A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914138804 DE4138804A1 (en) 1991-06-29 1991-11-26 Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914121695 DE4121695A1 (en) 1991-06-29 1991-06-29 Chamfering or countersinking drill - has combined drill and countersinking or chamfering bit attachment
DE19914138804 DE4138804A1 (en) 1991-06-29 1991-11-26 Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute

Publications (1)

Publication Number Publication Date
DE4138804A1 true DE4138804A1 (en) 1993-05-27

Family

ID=25905090

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914138804 Ceased DE4138804A1 (en) 1991-06-29 1991-11-26 Combined drilling and chamfering tool - is in two versions with chamfering edges at bottom of drill chuck jaws or on tool bit hinged in recess of twist drill flute

Country Status (1)

Country Link
DE (1) DE4138804A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331453A1 (en) * 1993-09-16 1995-03-23 Zettl Gmbh Cnc Praezisions Und Chuck
DE4331462A1 (en) * 1993-09-16 1995-03-23 Zettl Gmbh Cnc Praezisions Und Device for a chuck
DE29616165U1 (en) * 1996-09-17 1998-01-22 Widia Gmbh Tool adapter
DE10100797A1 (en) * 2001-01-10 2002-07-18 Markus Kraus Drill chuck has clamping jaws that simultaneously perform function of tool blades to enable combined clamping of tool and processing of workpiece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331453A1 (en) * 1993-09-16 1995-03-23 Zettl Gmbh Cnc Praezisions Und Chuck
DE4331462A1 (en) * 1993-09-16 1995-03-23 Zettl Gmbh Cnc Praezisions Und Device for a chuck
DE29616165U1 (en) * 1996-09-17 1998-01-22 Widia Gmbh Tool adapter
DE10100797A1 (en) * 2001-01-10 2002-07-18 Markus Kraus Drill chuck has clamping jaws that simultaneously perform function of tool blades to enable combined clamping of tool and processing of workpiece

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