DE290995C - - Google Patents

Info

Publication number
DE290995C
DE290995C DENDAT290995D DE290995DA DE290995C DE 290995 C DE290995 C DE 290995C DE NDAT290995 D DENDAT290995 D DE NDAT290995D DE 290995D A DE290995D A DE 290995DA DE 290995 C DE290995 C DE 290995C
Authority
DE
Germany
Prior art keywords
drill
sleeve
spring
shaft
spindle
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.)
Active
Application number
DENDAT290995D
Other languages
German (de)
Publication of DE290995C publication Critical patent/DE290995C/de
Active 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
    • B23B51/12—Adapters for drills or chucks; Tapered sleeves
    • B23B51/123—Conical reduction sleeves
    • 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
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1173—Retention by friction only, e.g. using springs, resilient sleeves, tapers using springs

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Es sind bereits Bohrfutter bekannt, bei denen das Einklemmen des Bohrers mit Hilfe einer in dem Futter angeordneten Schraubenfeder bewirkt wird, die, durch den Bohrerdruck aufgeweitet, sich fest an die Wandung der Futterhülse anlegt. Eine solche Schraubenfeder soll nach vorliegender Erfindung dazu dienen, Bohrer und andere Werkzeuge, namentlich solche, bei denen der übliche Mitnehmerlappen abgebrochen ist, in der konischen Höhlung einer gewöhnlichen Bohrspindel festzuklemmen. Die Feder ist zu diesem Zweck als Aufsteckhülse ausgebildet, die je nach dem Durchmesser des Bohrerschaftes und der Spindelbohrung einzelnThere are already chucks known in which the clamping of the drill with the help of a in the chuck arranged coil spring is effected, which, expanded by the drill pressure, rests firmly against the wall of the chuck sleeve. Such a coil spring should According to the present invention are used to drill bits and other tools, namely those in which the usual driver tab has broken off in the conical cavity of a to clamp the ordinary drill spindle. For this purpose, the spring is used as a push-on sleeve formed individually depending on the diameter of the drill shank and the spindle bore

J5 oder mehrfach auf den Bohrerschaft gesteckt und mit diesem zusammen in die Spindel geschoben wird. Eine am oberen Ende der Hülse angebrachte flache Mitnehmerzunge K dient einerseits zum Heraustreiben des Bohrers und der Federhülse mittels eines Keiles, andererseits dazu, bei noch nicht fest eingedrücktem Bohrer die Federhülse anfänglich etwas aufzuweiten und dadurch an die innere Wandung der Spindelbohrung anzulegen. Durch den Arbeitsdruck des Bohrers wird dann das selbsttätige Festklemmen des Werkzeugs ohne weitere Beanspruchung des Mitnehmerlappens bewirkt. J 5 or several times placed on the drill shaft and pushed into the spindle together with it. A flat driver tongue K attached to the upper end of the sleeve serves on the one hand to drive out the drill and the spring sleeve by means of a wedge and, on the other hand, to initially widen the spring sleeve a little when the drill is not yet firmly pressed in and thereby lay it against the inner wall of the spindle bore. The working pressure of the drill then automatically clamps the tool without any further stress on the driver tab.

Auf beiliegender Zeichnung zeigt Fig. 1 die aus Draht gewundene Federhülse, Fig. 2 im Schnitt die Art der Befestigung eines Bohrers mit abgebrochenem Schaft in der Bohrspindel.In the accompanying drawing, Fig. 1 shows the spring sleeve wound from wire, Fig. 2 in the Cut the type of attachment of a drill with a broken shaft in the drill spindle.

Claims (1)

Patent-Anspruch:Patent claim: Vorrichtung zum Einspannen von Bohrern und anderen Werkzeugen mit konischem Schaft in Bohrspindeln mit Hilfe von eng gewundenen Schraubenfedern, dadurch gekennzeichnet, daß die als Hülse ausgebildete Feder mit einem aufgesetzten flachen Mitnehmerlappen versehen ist und einzeln1 oder mehrfach übereinander über den Bohrerschaft gestülpt mit diesem.in die Bohrung der Spindel eingeschoben werden kann.Device for clamping drills and other tools with a conical shaft in drilling spindles with the aid of tightly wound helical springs, characterized in that the spring, which is designed as a sleeve, is provided with an attached flat driver tab and is slipped over the drill shaft individually 1 or more times over the drill shaft with this the spindle hole can be pushed in. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT290995D Active DE290995C (en)

Publications (1)

Publication Number Publication Date
DE290995C true DE290995C (en)

Family

ID=545909

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT290995D Active DE290995C (en)

Country Status (1)

Country Link
DE (1) DE290995C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056430B (en) * 1954-04-30 1959-04-30 Stieber Rollkupplung K G Clamping or coupling device
DE1078976B (en) * 1955-02-16 1960-04-07 Brown Fintube Co Means for pressing U-shaped longitudinal ribs distributed over the outer circumference of a pipe, in particular a heat exchange pipe, onto the pipe wall for soldering
DE1081124B (en) * 1957-07-01 1960-05-05 Christian Hansen Electric motor, in particular small motor, in which the rotor core is fastened to a cylindrical shaft with a small diameter by means of a helical spring, and a method for its production
DE1193221B (en) * 1963-03-22 1965-05-20 Domkraft Ab Nike Screw jack jack
DE1284167B (en) * 1959-09-30 1968-11-28 Steimle Erwin Two-part wall dowel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056430B (en) * 1954-04-30 1959-04-30 Stieber Rollkupplung K G Clamping or coupling device
DE1078976B (en) * 1955-02-16 1960-04-07 Brown Fintube Co Means for pressing U-shaped longitudinal ribs distributed over the outer circumference of a pipe, in particular a heat exchange pipe, onto the pipe wall for soldering
DE1081124B (en) * 1957-07-01 1960-05-05 Christian Hansen Electric motor, in particular small motor, in which the rotor core is fastened to a cylindrical shaft with a small diameter by means of a helical spring, and a method for its production
DE1284167B (en) * 1959-09-30 1968-11-28 Steimle Erwin Two-part wall dowel
DE1193221B (en) * 1963-03-22 1965-05-20 Domkraft Ab Nike Screw jack jack

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