DE887314C - Inner jaw chuck - Google Patents
Inner jaw chuckInfo
- Publication number
- DE887314C DE887314C DED6183D DED0006183D DE887314C DE 887314 C DE887314 C DE 887314C DE D6183 D DED6183 D DE D6183D DE D0006183 D DED0006183 D DE D0006183D DE 887314 C DE887314 C DE 887314C
- Authority
- DE
- Germany
- Prior art keywords
- chuck
- expanding mandrel
- expanding
- mandrel
- pressure medium
- 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.)
- Expired
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
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
Description
Die* Erfindüni#- be#ie,ht sich auf ein Inneinbacl<;2n-Spannfutter mit in Längsschlitzen eines Spannfuttergehäuses radial beweglichen Spreizbacken, die an ihrer Innenseite mittels Schrägflächen auf den schrägen Gegenflächen eines Spreizdornes aufliegen, der gegen die Kraft einer Rückstellfeder durch eine Hilfskraft innerhalb des Spannfuttergehäuses axial verschoben werden kann.The * invention # - be # ie, is based on an internal bacl <; 2n chuck with expanding jaws that can move radially in the longitudinal slots of a chuck housing, on the inside by means of inclined surfaces on the inclined mating surfaces of a Spreading mandrel rest against the force of a return spring by an auxiliary force can be moved axially within the chuck housing.
Die Erfindung besteht darin"daß der insbesondere als Hohldorn ausgebildete Spreizdorn unmittelbar als ein vom Druckmittel beaufschlagter Kolben ausgebildet ist. Dieser ist an beiden Enden mittels zylindrischer-Ansätze im Hohlraum des trommelförmigen Spannfuttergehäuses mit Gleitsitz eingepaßt, Um die.Spreizbacken sind ein oder mehrere Federringe herumgelegt, und die Ve#rstellung des Spreizdornes erfolgt in an sich bekannter Weise durch ein Druckmittel, das durch einen Axialkanal einer der das Spannfutter haltenden Reitstocksp#itzen zugeführt wird. Die Zuführung des Druckmittels zur Reitstockspitze erfolgt über einen Querkanal von einem -dort angeschlossenen Preßluftanschlußstutzen her.The invention consists in "that the particular designed as a hollow mandrel Expanding mandrel designed directly as a piston acted upon by the pressure medium is. This is at both ends by means of cylindrical lugs in the cavity of the drum-shaped Chuck housing fitted with a sliding fit, To die.Spreizbacken are one or more Spring washers put around, and the adjustment of the expanding mandrel takes place in itself known way by a pressure medium, which through an axial channel of one of the Chuck holding tailstock tips is fed. The supply of the pressure medium to the tailstock center takes place via a transverse channel from one connected there Compressed air connection piece.
Die Erfindung ermöglicht eine baulich sehr kleine und leichte Ausführung des Innenbackenfutters und ein Aufspannen auch verhältnismäßig langer Werkstücke. Außerdem bleibt das aufgespannte Werkstück von außen angreifenden Haltegliedern frei und kann somit ohne Umspannen über seine ganze Oberfläche bearbeitet werden.The invention enables a structurally very small and lightweight design the inner jaw chuck and the clamping of relatively long workpieces. In addition, the clamped workpiece remains from the outside attacking holding members freely and can therefore be processed over its entire surface without reclamping.
Die Zeichnung veranschaulicht ein Ausführungsbeispiel des, Erfindungsgegenstands.The drawing illustrates an exemplary embodiment of the subject matter of the invention.
In der Mantelfläche des trommelförmigen Spannfuttergehäuses i sind längs verlaufende, Schlitze 2 vorgesehen. In diese Schlitze sind die Spreizbacken 3 eingesetzt. Das Gehäuse i ist hohl und enthält den Spreizdorn 4, welcher im wesentlichen kegelige Gestalt und an den Enden zylindrische Ansätze 5, 5 aufweist, die im Hohlraum des Gehäuses i mit Gleitsitz eingepaßt sind.In the outer surface of the drum-shaped chuck housing i, longitudinal slots 2 are provided. The expanding jaws 3 are inserted into these slots. The housing i is hollow and contains the expanding mandrel 4, which is essentially conical in shape and has cylindrical lugs 5, 5 at the ends, which are fitted with a sliding fit in the cavity of the housing i.
Die Außenfläche der Spreizbacken 3 bildet einen Teil eines mit dem Gehäuse i konzentrischen Zy- linders, währenddie Innenfläche der Kegelform des Spreiz,dornes angepaßt ist, so daß die Backen 3 Keilform aufweisen.The outer surface of the expansion jaws 3 forms part of a concentric with the housing i ZY Linders, while the inner surface of the conical shape of the expanding, the mandrel is adapted so that the jaws 3 have the wedge shape.
Um die Backen 3 sind von außen ein oder mehrere Federringe 7 herumgelegt, welche die Backen an den Dorn 4 anpressen.One or more spring rings 7 are placed around the jaws 3 from the outside and press the jaws against the mandrel 4.
Zum Aufspannen eines Werkstückes, z. B. eines Ringes 8, wirddas Spannfuttergehäuse i mit axialen Löcherng auf zwei Reitstockspitzen io, ii aufgesetzt und der Spreizdorn 4 axial (in der Abbildung nach links) verschoben, so daß er die Spreizbacken 3 radial- nach- außen gegendie Innenfläche deis Werkstückes 8 -drückt und dieses genau zentrisch verspannt wird.For clamping a workpiece, e.g. B. a ring 8, the chuck housing i with axial holes is placed on two tailstock tips io, ii and the expanding mandrel 4 is moved axially (to the left in the figure) so that it moves the expanding jaws 3 radially outwards against the inner surface of the workpiece 8 - presses and this is clamped exactly centrically.
Die 'Verschiebung des Spreizdornes 4 entgegen einer Rückstellfeder 16 erfolgt durch Preßluft, welche über einen seitlichen Anschlußstutzen 12 und eine axiale Bohrung 13 der einen Reitstockspitze io in die Höhlung 6 des Spreizdornes eingeführt wird.The 'displacement of the expanding mandrel 4 against a return spring 16 is carried out by compressed air, which is introduced into the cavity 6 of the expanding mandrel via a lateral connection piece 12 and an axial bore 13 of a tailstock tip.
Am Spannfutter i ist noch der übliche Mitnehmer 14 vorgesehen, der mit dem Mitnehmerstift 15 der antreiben-den Reitstockspitze i i zusammenwirkt und die Drehung ödes Futters samt dem Werkstück beim Bearbeiten bewirkt.The usual driver 14 is also provided on the chuck i, the with the driving pin 15 of the driving-the tailstock tip i i interacts and causes the rotation of the barren chuck together with the workpiece during processing.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED6183D DE887314C (en) | 1942-09-09 | 1942-09-09 | Inner jaw chuck |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED6183D DE887314C (en) | 1942-09-09 | 1942-09-09 | Inner jaw chuck |
Publications (1)
Publication Number | Publication Date |
---|---|
DE887314C true DE887314C (en) | 1953-08-20 |
Family
ID=7031719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED6183D Expired DE887314C (en) | 1942-09-09 | 1942-09-09 | Inner jaw chuck |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE887314C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008545B (en) * | 1954-07-29 | 1957-05-16 | Hans Lukasczyk | Clamping device, especially mandrel |
DE1170715B (en) * | 1955-09-28 | 1964-05-21 | Morgaardshammars Mek Verkst S | Overload clutch designed as a conical shrink connection |
DE1297117B (en) * | 1964-04-09 | 1969-06-12 | Roland Offsetmaschf | Device for fixing and tensioning the side wall of a printing machine sub-assembly on the side wall of the printing machine |
EP0713741A1 (en) * | 1994-11-25 | 1996-05-29 | Bayerische Motoren Werke Aktiengesellschaft | Process for fracture separation of a workpiece in an area close to a bore, particularly for split bearings, preferably connecting rods of alternating piston engines |
DE19617599C1 (en) * | 1996-05-02 | 1997-10-30 | Man B & W Diesel Ag | Device for fitting bearing shell half in internal combustion engine |
CN105562748A (en) * | 2016-02-03 | 2016-05-11 | 西安法士特汽车传动有限公司 | Finish turning clamp for machining high-precision thin-wall part |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT29253B (en) * | 1905-08-24 | 1907-07-25 | Schneider & Cie Fa | Clamping device operated by a pressure medium for lathes u. like |
DE660950C (en) * | 1935-01-13 | 1938-06-07 | Carl Hasse & Wrede G M B H | Mandrel for machine tools |
-
1942
- 1942-09-09 DE DED6183D patent/DE887314C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT29253B (en) * | 1905-08-24 | 1907-07-25 | Schneider & Cie Fa | Clamping device operated by a pressure medium for lathes u. like |
DE660950C (en) * | 1935-01-13 | 1938-06-07 | Carl Hasse & Wrede G M B H | Mandrel for machine tools |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008545B (en) * | 1954-07-29 | 1957-05-16 | Hans Lukasczyk | Clamping device, especially mandrel |
DE1170715B (en) * | 1955-09-28 | 1964-05-21 | Morgaardshammars Mek Verkst S | Overload clutch designed as a conical shrink connection |
DE1297117B (en) * | 1964-04-09 | 1969-06-12 | Roland Offsetmaschf | Device for fixing and tensioning the side wall of a printing machine sub-assembly on the side wall of the printing machine |
EP0713741A1 (en) * | 1994-11-25 | 1996-05-29 | Bayerische Motoren Werke Aktiengesellschaft | Process for fracture separation of a workpiece in an area close to a bore, particularly for split bearings, preferably connecting rods of alternating piston engines |
DE19617599C1 (en) * | 1996-05-02 | 1997-10-30 | Man B & W Diesel Ag | Device for fitting bearing shell half in internal combustion engine |
CN105562748A (en) * | 2016-02-03 | 2016-05-11 | 西安法士特汽车传动有限公司 | Finish turning clamp for machining high-precision thin-wall part |
CN105562748B (en) * | 2016-02-03 | 2017-12-05 | 西安法士特汽车传动有限公司 | A kind of lathe finish fixture of machining high-precision thin-walled parts |
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