GB1293933A - An improved chuck - Google Patents
An improved chuckInfo
- Publication number
- GB1293933A GB1293933A GB1311869A GB1311869A GB1293933A GB 1293933 A GB1293933 A GB 1293933A GB 1311869 A GB1311869 A GB 1311869A GB 1311869 A GB1311869 A GB 1311869A GB 1293933 A GB1293933 A GB 1293933A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- shaft
- scroll member
- gear
- rotates
- 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
- B23B31/02—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
- B23B31/16004—Jaws movement actuated by one or more spiral grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/008—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
1293933 Chucks BONEHAM & TURNER Ltd 25 March 1970 [12 March 1969] 13118/69 Heading B3B A chuck has a plurality of jaws 11 which are pre-settable to the size of a workpiece batch by the manual operation of a scroll member 15, the final clamping and releasing of a workpiece being achieved by an operating mechanism, which may be power actuated pneumatically or hydraulically, which partially rotates the scroll member and moves the jaws through an amplitude of movement less that the total range of travel of the jaws. The jaws 11 are manually pre-set by rotating one of a plurality of stub shafts 6 and gears 34 to rotate the scroll member 15. The final clamping is achieved by axial movement of a shaft 25 having helical splines and which rotates a shaft 24. The shaft 24 rotates a gear 28 to rotate the scroll member 15. The drive from the shaft 24 to the gear 28 may be unlocked by manually rotating a cam ring 20 relative to a thrust plate 8 to allow springs 17 to separate the gear 28 from the gear 34 on the stub shafts 6. This allows adjustment to the pre-setting of the jaws 11. In an alternative embodiment (Fig. 3, not shown) an internally splined member is attached direct to the scroll member. The axially movable shaft (48) includes a helically splined portion for causing rotation of the scroll member, and a portion having straight splines (49). A screw operated key member (50) engages with these splines to rotationally lock or unlock the shaft (48) relative to the chuck body to allow manual adjustment to pre-set the jaws 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1311869A GB1293933A (en) | 1969-03-12 | 1969-03-12 | An improved chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1311869A GB1293933A (en) | 1969-03-12 | 1969-03-12 | An improved chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1293933A true GB1293933A (en) | 1972-10-25 |
Family
ID=10017155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1311869A Expired GB1293933A (en) | 1969-03-12 | 1969-03-12 | An improved chuck |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1293933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164590A (en) * | 1983-10-08 | 1986-03-26 | Roehm Guenter H | Drilling chuck |
-
1969
- 1969-03-12 GB GB1311869A patent/GB1293933A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164590A (en) * | 1983-10-08 | 1986-03-26 | Roehm Guenter H | Drilling chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |