FR2350169A1 - Self gripping chuck for lathes - has jaws wedged radially inwards under action of springs mounted along rotation axis - Google Patents
Self gripping chuck for lathes - has jaws wedged radially inwards under action of springs mounted along rotation axisInfo
- Publication number
- FR2350169A1 FR2350169A1 FR7613421A FR7613421A FR2350169A1 FR 2350169 A1 FR2350169 A1 FR 2350169A1 FR 7613421 A FR7613421 A FR 7613421A FR 7613421 A FR7613421 A FR 7613421A FR 2350169 A1 FR2350169 A1 FR 2350169A1
- Authority
- FR
- France
- Prior art keywords
- chuck
- jaws
- radially inwards
- lathes
- rotation axis
- 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.)
- Granted
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
- B23B31/16233—Jaws movement actuated by oblique surfaces of a coaxial control rod
- B23B31/16254—Jaws movement actuated by oblique surfaces of a coaxial control rod using fluid-pressure means to actuate the gripping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The self gripping chuck is mounted on the shaft running in a bearing in the machine tool body. the chuck is in two halves, the first is mounted directly on the shaft, the second half can slide along the machine axis relative to the fixed half. A washer spring assembly acts to force the two halves apart. Three jaws for gripping the workpiece have a wedge shaped base seated on a correspondingly shaped section on the fixed half of the chuck. To insert the workpiece the end of the chuck is pressed inwards against the spring pressure. On release the moving half of the chuck is moved outwards forcing the jaws through the wedges radially inwards on to the workpiece.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613421A FR2350169A1 (en) | 1976-05-05 | 1976-05-05 | Self gripping chuck for lathes - has jaws wedged radially inwards under action of springs mounted along rotation axis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613421A FR2350169A1 (en) | 1976-05-05 | 1976-05-05 | Self gripping chuck for lathes - has jaws wedged radially inwards under action of springs mounted along rotation axis |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2350169A1 true FR2350169A1 (en) | 1977-12-02 |
FR2350169B1 FR2350169B1 (en) | 1980-05-23 |
Family
ID=9172714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7613421A Granted FR2350169A1 (en) | 1976-05-05 | 1976-05-05 | Self gripping chuck for lathes - has jaws wedged radially inwards under action of springs mounted along rotation axis |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2350169A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB824016A (en) * | 1956-02-28 | 1959-11-25 | Ernault Batignolles Sa H | Improvements in or relating to chucks for machine-tools |
FR2159432A1 (en) * | 1971-11-09 | 1973-06-22 | Ifa Automobilwerke Veb | Friction welding chuck - with low moment of inertia |
-
1976
- 1976-05-05 FR FR7613421A patent/FR2350169A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB824016A (en) * | 1956-02-28 | 1959-11-25 | Ernault Batignolles Sa H | Improvements in or relating to chucks for machine-tools |
FR2159432A1 (en) * | 1971-11-09 | 1973-06-22 | Ifa Automobilwerke Veb | Friction welding chuck - with low moment of inertia |
Also Published As
Publication number | Publication date |
---|---|
FR2350169B1 (en) | 1980-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |