GB1309088A - Workpiece clamping devices - Google Patents
Workpiece clamping devicesInfo
- Publication number
- GB1309088A GB1309088A GB1309088DA GB1309088A GB 1309088 A GB1309088 A GB 1309088A GB 1309088D A GB1309088D A GB 1309088DA GB 1309088 A GB1309088 A GB 1309088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clamping member
- clamping
- workpiece
- plunger
- lost motion
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
- B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
1309088 Clamping dogs POWER JACKS Ltd 17 Nov 1970 [20 Nov 1969] 56934/69 Heading B3B A workpiece clamping device comprises a base part 1 adapted to be secured to, e.g. a work table, a workpiece clamping member 5 mounted on the base so as to be movable firstly substantially rectilinearly between a withdrawn position (as shown) and an operative position (shown in chain-dot), and secondly to be movable so that a workpiece engaging part 11 moves transversely of said rectilinear movement from the operative position to a clamping position whereby a workpiece is secured to said work table, the device being operated by a single hydraulic plunger 9 which operates mechanically through two drives to effect the first and second movements, both of said drives incorporating lost motion to ensure the desired sequence of operation. The first drive comprises a bell crank 19 actuated by the body 8 of the plunger so that an arm (23) (Fig. 5, not shown) can move a rod (24) via springs (29), (30) to rotate a shaft (34) and hence a lever (35) (Fig. 1, not shown). The springs (29), (30) provide the lost motion to allow continuing movement of the plunger 9 and bell crank 19 after the lever (35) has rotated fully to move the clamping member 5 from the withdrawn to the operative position. The member 5 slides by means of slots 13 on a T-shaped support member 4 which is pivoted about a shaft 3. During the sliding of the clamping member 5 a cross pin 37 in the plunger moves along a groove 38 without applying a pivoting force to the clamping member 5. The second mechanical drive comprises a direct abutment of a part 18 of the plunger 9 with the underside of the clamping member 5 when it reaches the operative position to pivot the clamping member about shaft 3 to clamp a workpiece. The groove 38 and pin 37 provide a lost motion connection during the rectilinear sliding of the clamping member 5. The springs (29), (30) return the clamping member from the clamping position to the withdrawn position in the correct sequence after release of pressure fluid from passage 10. In alternative arrangements the clamping member may be pivotally mounted on a block slidable on the base; both movements of the clamping member are rectilinear; the second direct abutment drive may be used to effect the first rectilinear movement; and the lost motion may be provided by a sprocket having a toothless portion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5693469 | 1969-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1309088A true GB1309088A (en) | 1973-03-07 |
Family
ID=10477923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1309088D Expired GB1309088A (en) | 1969-11-20 | 1969-11-20 | Workpiece clamping devices |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2057186A1 (en) |
FR (1) | FR2069666A5 (en) |
GB (1) | GB1309088A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103240689A (en) * | 2012-02-04 | 2013-08-14 | 富泰华工业(深圳)有限公司 | Clamping assembly |
CN104551781A (en) * | 2014-12-11 | 2015-04-29 | 宁波吉烨汽配模具有限公司 | Locking device for tool clamp |
CN112476239A (en) * | 2020-11-23 | 2021-03-12 | 合肥辰以精密模具有限公司 | Side pressure formula anchor clamps are used in production of dysmorphism notebook keyboard tool |
US11883916B1 (en) | 2022-12-16 | 2024-01-30 | HDM Hydraulics, LLC | Modular workpiece holding system and method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2572666A1 (en) * | 1984-11-07 | 1986-05-09 | Carossino Freres | Device for immobilising and clamping workpieces to be machined |
US4857009A (en) * | 1988-07-21 | 1989-08-15 | Hewlett-Packard Company | Fixture latching mechanism |
FR2640176B1 (en) * | 1988-12-14 | 1994-07-08 | Cassese Antoine | LOCKING DEVICE WITH SLIDER OF STICKS OR PROFILES ADAPTABLE TO A PENDULAR SAW WITH A SINGLE CIRCULAR BLADE |
CN106002761B (en) * | 2016-06-29 | 2018-11-13 | 苏州市职业大学 | A kind of clamping device |
-
1969
- 1969-11-20 GB GB1309088D patent/GB1309088A/en not_active Expired
-
1970
- 1970-11-19 FR FR7041509A patent/FR2069666A5/fr not_active Expired
- 1970-11-20 DE DE19702057186 patent/DE2057186A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103240689A (en) * | 2012-02-04 | 2013-08-14 | 富泰华工业(深圳)有限公司 | Clamping assembly |
CN104551781A (en) * | 2014-12-11 | 2015-04-29 | 宁波吉烨汽配模具有限公司 | Locking device for tool clamp |
CN112476239A (en) * | 2020-11-23 | 2021-03-12 | 合肥辰以精密模具有限公司 | Side pressure formula anchor clamps are used in production of dysmorphism notebook keyboard tool |
US11883916B1 (en) | 2022-12-16 | 2024-01-30 | HDM Hydraulics, LLC | Modular workpiece holding system and method |
Also Published As
Publication number | Publication date |
---|---|
DE2057186A1 (en) | 1971-06-03 |
FR2069666A5 (en) | 1971-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |