GB252851A - Improvements in work-chucking devices for lathes or other machine tools - Google Patents
Improvements in work-chucking devices for lathes or other machine toolsInfo
- Publication number
- GB252851A GB252851A GB10794/25A GB1079425A GB252851A GB 252851 A GB252851 A GB 252851A GB 10794/25 A GB10794/25 A GB 10794/25A GB 1079425 A GB1079425 A GB 1079425A GB 252851 A GB252851 A GB 252851A
- Authority
- GB
- United Kingdom
- Prior art keywords
- work
- mandrel
- chuck
- spindle
- jaws
- 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
- B23B31/4006—Gripping the work or tool by a split sleeve
- B23B31/4033—Gripping the work or tool by a split sleeve 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
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/10741—Retention by substantially radially oriented pins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
252,851. Herbert, Sir A., and Lloyd, A. H. April 25, 1925. Chucks; sockets; mandrels. - A device for gripping work in a lathe or other machine tool wherein the work may be gripped in different positions for performing successive machining operations comprises two separate gripping- devices, one being mounted on the other and the movement of the gripping-devices of one being controlled by that of the other. A chuck 2 having radial jaws 15, 16, has a central recess for a bush 4 which is tapered internally to engage the end of a mandrel 6. The mandrel is split at 25 and is expanded to grip the work 20 by a drawspindle 8 having a floating collar 11 engaging a nut 12 thereon and displaced axially by bevelled plungers 14 which are actuated by the chuck jaws either directly or through flanges 17 secured to the jaws. A spring 19 releases the draw-spindle which may be guided at 18 in the mandrel. In operation, the work may be gripped for a boring operation in the jaws of the chuck 2 with the mandrel removed. after which the work is released, the mandrel inserted in the chuck and the work gripped internally for a subsequent operation. The mandrel may grip by contracting and may be. actuated by a push-spindle and may be replaced by any form of chuck, such as a collet chuck. In a modification of the mandrel the end of the draw-spindle is threaded to engage the work, either internally or externally, which is then drawn against the end face of the mandrel. The draw or push-spindle may be operated by one plunger 14 only, but preferably a plunger is provided for each jaw of the chuck, and each plunger is retained in position by a key-way and screw 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10794/25A GB252851A (en) | 1925-04-25 | 1925-04-25 | Improvements in work-chucking devices for lathes or other machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10794/25A GB252851A (en) | 1925-04-25 | 1925-04-25 | Improvements in work-chucking devices for lathes or other machine tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB252851A true GB252851A (en) | 1926-06-10 |
Family
ID=9974371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10794/25A Expired GB252851A (en) | 1925-04-25 | 1925-04-25 | Improvements in work-chucking devices for lathes or other machine tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB252851A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2715646A1 (en) * | 1994-02-03 | 1995-08-04 | Fcb | Gripping device with expandable mandrel. |
| CN104493601A (en) * | 2014-12-12 | 2015-04-08 | 重庆市卓玛家具有限公司 | Tool for chamfering supporting sleeve |
| CN105312914A (en) * | 2014-06-06 | 2016-02-10 | 四平博尔特工艺装备有限公司 | Gapless mandrel |
| CN105328466A (en) * | 2015-11-30 | 2016-02-17 | 四川迅吉科技有限责任公司 | Positioning device used for three-jaw chucks of high-speed rail motor train unit |
| CN105965292A (en) * | 2016-06-27 | 2016-09-28 | 北京航天控制仪器研究所 | Quick locking anti-pull expanding tire of workpiece being positioned by using inner hole and end face |
| CN109128949A (en) * | 2018-11-15 | 2019-01-04 | 斯耐翔精密机械（苏州）有限公司 | Accurate novel clamp |
-
1925
- 1925-04-25 GB GB10794/25A patent/GB252851A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2715646A1 (en) * | 1994-02-03 | 1995-08-04 | Fcb | Gripping device with expandable mandrel. |
| EP0670193A2 (en) * | 1994-02-03 | 1995-09-06 | F C B | Clamping device with expanding mandrel |
| EP0670193A3 (en) * | 1994-02-03 | 1995-12-20 | Fcb | Clamping device with expanding mandrel. |
| CN105312914A (en) * | 2014-06-06 | 2016-02-10 | 四平博尔特工艺装备有限公司 | Gapless mandrel |
| CN104493601A (en) * | 2014-12-12 | 2015-04-08 | 重庆市卓玛家具有限公司 | Tool for chamfering supporting sleeve |
| CN105328466A (en) * | 2015-11-30 | 2016-02-17 | 四川迅吉科技有限责任公司 | Positioning device used for three-jaw chucks of high-speed rail motor train unit |
| CN105965292A (en) * | 2016-06-27 | 2016-09-28 | 北京航天控制仪器研究所 | Quick locking anti-pull expanding tire of workpiece being positioned by using inner hole and end face |
| CN109128949A (en) * | 2018-11-15 | 2019-01-04 | 斯耐翔精密机械（苏州）有限公司 | Accurate novel clamp |
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