DE191571C - - Google Patents
Info
- Publication number
- DE191571C DE191571C DENDAT191571D DE191571DA DE191571C DE 191571 C DE191571 C DE 191571C DE NDAT191571 D DENDAT191571 D DE NDAT191571D DE 191571D A DE191571D A DE 191571DA DE 191571 C DE191571 C DE 191571C
- Authority
- DE
- Germany
- Prior art keywords
- wedges
- clamping jaws
- workpiece
- piston
- cylinder
- 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
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
- B23B31/16158—Jaws movement actuated by coaxial conical surfaces
- B23B31/16179—Jaws movement actuated by coaxial conical surfaces using fluid-pressure means to actuate the gripping means
- B23B31/16183—Jaws movement actuated by coaxial conical surfaces using fluid-pressure means to actuate the gripping means using mechanical transmission through the spindle
-
- 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
- B23B31/4066—Gripping the work or tool by jaws moving radially controlled by conical surfaces using mechanical transmission through the spindle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die vorliegende Erfindung betrifft eine Vorrichtung zum schnellen Aufspannen und Lösen der Werkstücke bei Drehbänken, bei der die das Werkstück festhaltenden Klemmbacken durch Keile angepreßt werden, deren Vorschub durch den Kolben eines hydraulischen Zylinders bewirkt wird. Die Erfindung besteht bei derartigen Vorrichtungen darin, daß der hydraulische Zylinder die Verlängerung der hohlen Werkstückspindel bildet.The present invention relates to a device for quick clamping and Loosening the workpieces on lathes with the clamping jaws holding the workpiece are pressed by wedges, the advance of which is driven by the piston of a hydraulic Cylinder is effected. The invention consists in such devices in that the hydraulic cylinder forms the extension of the hollow workpiece spindle.
Eine Ausführungsform der Erfindung ist auf der beiliegenden Zeichnung in Fig. ι in einer Seitenansicht und in Fig. 2 in einem Längsschnitt dargestellt.An embodiment of the invention is shown in the accompanying drawing in FIG a side view and shown in Fig. 2 in a longitudinal section.
In der Zeichnung ist b eine der Klemmbacken, die durch den Keil α radial nach innen geschoben werden kann. Der Keil α gleitet auf einem festen Gegenteil c. In the drawing, b is one of the clamping jaws that can be pushed radially inward through the wedge α. The wedge α slides on a fixed opposite c.
Die Keile α sitzen am vorderen Ende einer Stange d, die am anderen Ende einen Kolben e trägt, der sich in einem Zylinder g bewegen kann und durch eine Feder f zurückgedrückt wird, so daß die Keile α sich unter der Einwirkung der Feder f unter den Klemmbacken b zurückziehen. Dabei drücken Federn i auf die Köpfe von Bolzen k, die in die Klemmbacken b eingesetzt sind und ziehen die letzteren vom Werkstück ab, so daß dieses freigegeben ist.The wedges α sit at the front end of a rod d, which carries a piston e at the other end, which can move in a cylinder g and is pushed back by a spring f , so that the wedges α under the action of the spring f under the Pull back the clamping jaws b. Springs i press on the heads of bolts k, which are inserted into clamping jaws b , and pull the latter off the workpiece so that it is released.
Läßt man aber durch die Leitung h ein Druckmittel auf den Kolben e, so schieben sich die Keile α vor und drücken die Klemmbacken b gegen das dazwischengelegte Werkstück. Die Keile α und c sind für den Durchgang der Bolzen k mit Ausschnitten versehen, so daß die Bolzen die Verschiebung nicht hindern. Zur Aufnahme der Köpfe der Bolzen k ist der Kopf η mit Aussparungen m versehen. Der Zylinder g ist auf der Spindel ρ befestigt und dreht sich mit dieser und dem Kolben e in einem Gehäuse r. Dabei nimmt eine Büchse s unter Zwischenschaltung von Kugeln t den axialen Druck des Werkstückes auf. Die Anfangsstellung der Klemmbacken kann durch Verschiebung der Keile c mittels der Muttern u und ν reguliert werden. Bei der gezeichneten Ausführungsform ist der Zylinder g konaxial mit der Stange d angeordnet, die einen vollen Querschnitt hat. Sie kann aber auch hohl gestaltet werden, um die Hindurch führung einer Stellstange o. dgl. zu gestatten.If, however, a pressure medium is applied to the piston e through the line h , the wedges α advance and press the clamping jaws b against the workpiece placed in between. The wedges α and c are provided with cutouts for the passage of the bolts k , so that the bolts do not hinder the displacement. To accommodate the heads of the bolts k , the head η is provided with recesses m . The cylinder g is attached to the spindle ρ and rotates with it and the piston e in a housing r. A sleeve s absorbs the axial pressure of the workpiece with the interposition of balls t. The initial position of the clamping jaws can be adjusted by moving the wedges c by means of the nuts u and ν. In the embodiment shown, the cylinder g is arranged conaxially with the rod d, which has a full cross-section. But it can also be made hollow in order to allow an adjusting rod or the like to be passed through.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR361445T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE191571C true DE191571C (en) |
Family
ID=8893945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT191571D Active DE191571C (en) |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE191571C (en) |
FR (1) | FR361445A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2433152A (en) * | 1943-04-17 | 1947-12-23 | Cread Engineering And Res Comp | Rotary swaging machine |
DE1015300B (en) * | 1956-03-03 | 1957-09-05 | Hydraulik Gmbh | Clamping device on the pulling heads of machines, in particular stretching machines |
FR2579498A1 (en) * | 1985-03-27 | 1986-10-03 | Sandvik Tobler | Rapid fastening device or coupling for a tool holder, tool or clamping device |
-
0
- DE DENDAT191571D patent/DE191571C/de active Active
-
1905
- 1905-05-06 FR FR361445A patent/FR361445A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR361445A (en) | 1906-07-13 |
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