EP0205444A1 - Clamping chuck with a variable diameter between 300 and 5000 mm - Google Patents

Clamping chuck with a variable diameter between 300 and 5000 mm

Info

Publication number
EP0205444A1
EP0205444A1 EP19850901348 EP85901348A EP0205444A1 EP 0205444 A1 EP0205444 A1 EP 0205444A1 EP 19850901348 EP19850901348 EP 19850901348 EP 85901348 A EP85901348 A EP 85901348A EP 0205444 A1 EP0205444 A1 EP 0205444A1
Authority
EP
European Patent Office
Prior art keywords
driven
jaw
rods
mandrel
drive system
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.)
Withdrawn
Application number
EP19850901348
Other languages
German (de)
French (fr)
Inventor
Otto Lieber
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.)
LIEBER WERKZEUGMASCHINENFABRIK
Original Assignee
LIEBER WERKZEUGMASCHINENFABRIK
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 LIEBER WERKZEUGMASCHINENFABRIK filed Critical LIEBER WERKZEUGMASCHINENFABRIK
Publication of EP0205444A1 publication Critical patent/EP0205444A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16045—Jaws movement actuated by screws and nuts or oblique racks

Abstract

Dans le corps du mandrin (1) est disposé un système d'entraînement des mâchoires de serrage qui est composé de 2, 3, 4, 5 tiges filetées ou plus, ces tiges étant entraînées par une transmission à vis sans fin et par une chaîne ou courroie dentée (5) entraînée par un moteur électrique (4) et qui agit simultanément sur toutes les transmissions à vis. Les tiges filetées agissent chacune sur un écrou (6) relié à une partie inférieure de la mâchoire (7) guidée qui agit avec les autres parties de la mâchoire de façon centrée. On obtient donc un mandrin de serrage dont les parties inférieures des mâchoires sont entraînées de façon centrale par des tiges filetées et des transmissions à vis sans fin; l'effet autobloquant des tiges et transmissions à vis est idéal pour le mandrin de serrage. A l'extérieur du mandrin de serrage, on agit sur le dispositif tendeur par une commande électrique.In the body of the mandrel (1) is arranged a drive system for the clamping jaws which is composed of 2, 3, 4, 5 or more threaded rods, these rods being driven by a worm gear transmission and by a chain or toothed belt (5) driven by an electric motor (4) and which acts simultaneously on all screw transmissions. The threaded rods each act on a nut (6) connected to a lower part of the guided jaw (7) which acts with the other parts of the jaw in a centered manner. A tightening mandrel is therefore obtained, the lower parts of the jaws of which are driven centrally by threaded rods and worm drives; the self-locking effect of the rods and screw transmissions is ideal for the chuck. Outside the clamping mandrel, the tensioning device is acted on by an electrical control.

Description

Beschreibungdescription
Kraftspannfutter 300 mm - 5000 mm 0Power chuck 300 mm - 5000 mm 0
Die Erfindung nach dem Patentanspruch beinhaltet eine neue Art von KraftSpannfuttern, die neue bisher nicht gekannte Möglich¬ keiten eröffnet. Hatten früher in der Regel KraftSpannfutter oder auch Vorderendfutter genannt, eine Pressluftbetätigung oder hydraulische Betätigung der Backen, so ist das nach der Erfindung gänzlich anders. Eingebaute Spindeltriebe über Schnek- ken treiben zentrisch spannend die Grundbacken an, die ihrer¬ seits verschiedene Aufsatzbacken tragen können. Die Selbsthem¬ mung der Spindeltriebe und Schneckentriebe nach der Erfindung, sind ideale Eigenschaften der Spannmittel.The invention according to the patent claim includes a new type of power chuck, which opens up new hitherto unknown possibilities. Previously, power chucks or front end chucks usually had compressed air actuation or hydraulic actuation of the jaws, but this is completely different according to the invention. Built-in spindle drives via screws drive the base jaws in an exciting, centric manner, which in turn can carry different top jaws. The self-locking of the spindle drives and worm drives according to the invention are ideal properties of the clamping means.
Nach der Erfindung kann es sich um 2-Backen-, 3-Backen-, 4-Bak- ken-, 5-Backen- oder Mehrbackenkraftspannfutter oder Kraftspann¬ planscheiben handeln. Die Erfindung beinhaltet wesentliche Vor- teile im Gebrauch. So entfällt zum Beispiel das lästige Peit¬ schen der Pressluft durch die Räume. Extern von den Kraftspann¬ futtern wird durch ein elektrisches Steuerungssystem oder auch durch ein sehr einfaches elektrisches System der Spannmechanis¬ mus nach der Erfindung betätigt. So können extern, -interessant besonders bei CNC-Maschinen -, die Spannkräfte hoch variabel eingestellt werden. Die Geschwindigkeiten der Spannbacken sind' bestimmbar und die Backenöffnungswege können nach Wunsch und Erfordernis länger oder kürzer eingestellt werden. Dies sind Dinge, die bei den bisher bekannten Systemen nicht erreichbar waren.According to the invention, it can be 2-jaw, 3-jaw, 4-jaw, 5-jaw or multi-jaw power chucks or power chucks. The invention includes significant advantages in use. For example, there is no annoying whipping of the compressed air through the rooms. External of the power chucks, the tensioning mechanism according to the invention is actuated by an electrical control system or also by a very simple electrical system. In this way, the clamping forces can be set in a highly variable manner externally, particularly interesting for CNC machines. The speeds of the jaws can be determined and the jaw opening paths can be set longer or shorter as desired and required. These are things that were not achievable with the previously known systems.
Die Kraftspannfutter nach der Erfindung erlauben ferner einen sehr leisen Lauf, vom Bedienungspersonal kaum wahrnehmbar.The power chucks according to the invention also allow a very quiet run, barely noticeable by the operating personnel.
Der Spannmittel-Durchmesser kann etwa 300 mm - 5000 mm betragen.The clamping device diameter can be about 300 mm - 5000 mm.
Ersatzbla t Die Stromzuführung, die nicht Gegenstand dieser Erfindung ist, erfolgt in der Regel über Schleifringe oder Kontakte, die hin¬ ter dem Spannmittelflansch geschützt angeordnet sind.Spare sheet The power supply, which is not the subject of this invention, generally takes place via slip rings or contacts which are arranged behind the clamping device flange in a protected manner.
Die Kosten für die neuen Kraftspannmittel nach der Erfindung sind geringer, so daß in breitem Maße ein Kraftspannmittel dort zur Verfügung stehen kann, wo es sonst aus finanziellen Gründen nicht angeschafft werden konnte.The costs for the new clamping devices according to the invention are lower, so that a clamping device can be widely available where it could not otherwise be purchased for financial reasons.
Da es sich bei den neuen Spannmitteln nach der Erfindung um eine sehr überschaubare mechanische Sache handelt, ausgestattet mit einem eingebauten Elektromotor, so ist ein leichter Service besonders in weit entfernte Länder gewährleistet. Since the new clamping devices according to the invention are a very manageable mechanical thing, equipped with a built-in electric motor, easy service is guaranteed, especially in distant countries.

Claims

PatentanspruchClaim
Kraftspannfutter 300 mm - 5000 mm 0Power chuck 300 mm - 5000 mm 0
Dadurch gekennzeichnet, als daß in einem Futterkörper (1) ein Spannbacken-Antriebssystem angeordnet ist. Das Spannbacken-An¬ triebssystem (2) besteht aus 2, 3, 4, 5 oder mehr Gewindespin¬ deltrieben (2), hier dargestellt Ausführung mit 3 Gewindespin¬ deln, die je über einen Schneckenantrieb (3) mit Hilfe eines eingebauten Elektromotors (4) über einen Synchron-Antrieb (5) mittels Kette oder Zahnriemen (5) angetrieben werden. Das An¬ triebssystem ist weiter dadurch gekennzeichnet, daß entweder 2, 3, 4, 5 oder mehr Spindeln auf die gleiche synchrone Weise angetrieben werden. Die Spindeln (2) enthalten je eine Mutter (6), die mit je einer geführten Grundbacke (7) verbunden sind und zusammen zentrisch spannen.Characterized in that a clamping jaw drive system is arranged in a chuck body (1). The clamping jaw drive system (2) consists of 2, 3, 4, 5 or more threaded spindle drives (2), shown here with 3 threaded spindles, each of which has a worm drive (3) with the help of an integrated electric motor ( 4) via a synchronous drive (5) by means of a chain or toothed belt (5). The drive system is further characterized in that either 2, 3, 4, 5 or more spindles are driven in the same synchronous manner. The spindles (2) each contain a nut (6), each of which is connected to a guided base jaw (7) and clamps together centrally.
Ersatzblatt Spare sheet
EP19850901348 1985-01-02 1985-02-23 Clamping chuck with a variable diameter between 300 and 5000 mm Withdrawn EP0205444A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853500002 DE3500002A1 (en) 1985-01-02 1985-01-02 POWER CHUCK 300 MM - 5000 MM (DIAMETER)
DE3500002 1985-01-02

Publications (1)

Publication Number Publication Date
EP0205444A1 true EP0205444A1 (en) 1986-12-30

Family

ID=6259180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850901348 Withdrawn EP0205444A1 (en) 1985-01-02 1985-02-23 Clamping chuck with a variable diameter between 300 and 5000 mm

Country Status (4)

Country Link
EP (1) EP0205444A1 (en)
AU (1) AU4064785A (en)
DE (1) DE3500002A1 (en)
WO (1) WO1986003999A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219848C2 (en) * 1991-06-17 1999-03-11 Demgen Karl Willi Clamping head on a materials testing machine
DE102007024535B4 (en) 2007-05-24 2009-03-19 Lang Technik Gmbh Jaw chuck with mechanically driven gear wheel with a plan spiral groove
DE102010035150B4 (en) 2010-08-23 2012-03-08 Ev Group Gmbh Automatically coupled chuck
CN110947987B (en) * 2019-12-19 2021-01-08 中国科学院长春光学精密机械与物理研究所 Three-jaw chuck mechanism for measuring device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23806C (en) * E. WlLKE in Berlin C, Neue Schönhauserstr. 2 Hub drilling machine for the automatic boring of cylindrical or conical hub holes by means of a spindle guided in a sleeve with drill steel
DE2068C (en) * F. ANDREE und M. SlEVERT in Berlin Disengagement of the ring gear on the HORTON faceplate
US1844577A (en) * 1928-05-17 1932-02-09 William K Stamets Chuck
US2590509A (en) * 1948-05-14 1952-03-25 Union Mfg Co Power actuated chuck
DE865093C (en) * 1951-06-03 1953-01-29 Wilhelm Berg Device for adjusting lathe chuck jaws
DE956731C (en) * 1953-04-25 1957-01-24 Paul Baerwinkel Chuck with individually and jointly adjustable clamping jaws
AT198095B (en) * 1956-03-28 1958-06-10 Hilden Erich Warsitz Maschf Chuck with jaws that can be adjusted both together and individually
US2883201A (en) * 1958-05-14 1959-04-21 Jones And Lamson Machine Compa Universal chuck
DE2162217C2 (en) * 1971-12-15 1974-01-31 Cushman Industries, Inc., Hartford, Conn. (V.St.A.) Power chucks
DE7735088U1 (en) * 1977-11-16 1978-03-30 Gerhard Telle Spannwerkzeuge Gmbh, 7920 Heidenheim ROTARY JAW CHUCK
DE2816163A1 (en) * 1978-04-14 1979-10-25 Messer Griesheim Gmbh SELF-CENTERING CHUCK

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8603999A1 *

Also Published As

Publication number Publication date
DE3500002A1 (en) 1985-08-14
WO1986003999A1 (en) 1986-07-17
AU4064785A (en) 1986-07-29

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Inventor name: LIEBER, OTTO