CN203843517U - Pawl-type anti-loose fixture - Google Patents
Pawl-type anti-loose fixture Download PDFInfo
- Publication number
- CN203843517U CN203843517U CN201320816947.0U CN201320816947U CN203843517U CN 203843517 U CN203843517 U CN 203843517U CN 201320816947 U CN201320816947 U CN 201320816947U CN 203843517 U CN203843517 U CN 203843517U
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- China
- Prior art keywords
- pawl
- outer ring
- fixture
- pressed
- spring
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a pawl-type anti-loose fixture and belongs to the field of fixtures. The pawl-type anti-loose fixture comprises fixture seats, a threaded rod, moving blocks, clamping blocks, a screw, an outer ring, a spring, a pawl and a screw. The upper end of each fixture seat is pressed on the concave edge of the lower end of each moving block, the lower end of each clamping block is pressed on the concave edge of the upper end of each moving block, the threaded rod is meshed with the moving blocks, the gear is assembled on the threaded rod through a key, one end of the pawl is hinged to the outer ring while the other end is connected with a spring, and the screw is assembled in a threaded hole of the outer ring and pressed on the pawl. The problems of unreliability in clamping and easiness in loosening due to an existing fixture are solved, and the pawl-type anti-loose fixture has the advantages of simple structure, reasonable design and easiness in manufacturing.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of for preventing the locking fixture of the loosening pawl type of piece-holder.
Background technology
In machine industry, lathe is widely used in processing all kinds of parts, when processing parts, relates to its clamping and positioning problem.Workpiece is adding man-hour, by the clamping of fixture, can be adapted to various machining.But due to the vibration of lathe in process and the effect of cutting force, cause fixture to occur loosening, and then because piece-holder power causes the loosening of workpiece not, reduced machining accuracy, when serious, will cause workpiece to be thrown out of the generation of accident.
Summary of the invention
The clamping that causes for existing fixture is unreliable, easy loosening problem, the invention provides the locking fixture of a kind of pawl type.
For addressing the above problem, the present invention adopts following technical scheme.
The locking fixture of a kind of pawl type, comprise clamping fixture seat, screw rod, movable block, clamp, the upper end of clamping fixture seat is pressed on the recessed edge in movable block lower end, clamp lower end is pressed on the recessed edge in movable block upper end, screw rod is meshed with movable block, also comprise gear, outer ring, spring, ratchet, screw, described gear is assemblied on screw rod by key, described outer ring is fixed on clamping fixture seat, and being provided with screwed hole and spring, one end of described ratchet is hinged on outer ring, other end linking springs, described screw is assemblied in the screwed hole of outer ring, and is pressed on ratchet.
Described spring is extension spring.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes gear and ratchet to realize the locking effect to screw rod, and in the course of the work, the locking to screw rod due to gear and ratchet, has played the locking of screw rod, and then makes fixture can not occur becoming flexible because of the effect of vibration and cutting force.
(2) the present invention is simple in structure, reasonable in design, is easy to manufacture.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the cutaway view along A-A line in Fig. 1.
In figure: 1-clamping fixture seat, 2-screw rod, 3-movable block, 4-clamp, 5-gear, 6-outer ring, 7-spring, 8-ratchet, 9-screw.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As Fig. 1, shown in Fig. 2, the locking fixture of pawl type comprises clamping fixture seat 1, screw rod 2, movable block 3, clamp 4, the upper end of clamping fixture seat 1 is pressed on the movable block 3 recessed edge in lower end, clamp 4 lower ends are pressed on the movable block 3 recessed edge in upper end, screw rod 2 is meshed with movable block 3, also comprise gear 5, outer ring 6, spring 7, ratchet 8, screw 9, described gear 5 is assemblied on screw rod 2 by key, described outer ring 6 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 7, one end of described ratchet 8 is hinged on outer ring 6, other end linking springs 7, described screw 9 is assemblied in the screwed hole of outer ring 6, and be pressed on ratchet 8.
Described spring 7 is extension spring.
embodiment 1
As Fig. 1, shown in Fig. 2, the locking fixture of pawl type comprises clamping fixture seat 1, screw rod 2, movable block 3, clamp 4, the upper end of clamping fixture seat 1 is pressed on the movable block 3 recessed edge in lower end, clamp 4 lower ends are pressed on the movable block 3 recessed edge in upper end, screw rod 2 is meshed with movable block 3, also comprise gear 5, outer ring 6, spring 7, ratchet 8, screw 9, described gear 5 is assemblied on screw rod 2 by key, described outer ring 6 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 7, one end of described ratchet 8 is hinged on outer ring 6, other end linking springs 7, described screw 9 is assemblied in the screwed hole of outer ring 6, and be pressed on ratchet 8.
Described spring 7 is extension spring, and its cross section is circular.
Claims (2)
1. the locking fixture of pawl type, comprise clamping fixture seat (1), screw rod (2), movable block (3), clamp (4), the upper end of clamping fixture seat (1) is pressed on the recessed edge in movable block (3) lower end, clamp (4) lower end is pressed on the recessed edge in movable block (3) upper end, screw rod (2) is meshed with movable block (3), it is characterized in that, also comprise gear (5), outer ring (6), spring (7), ratchet (8), screw (9), described gear (5) is assemblied on screw rod (2) by key, described outer ring (6) is fixed on clamping fixture seat (1), and be provided with screwed hole and spring (7), one end of described ratchet (8) is hinged on outer ring (6), other end linking springs (7), described screw (9) is assemblied in the screwed hole of outer ring (6), and be pressed on ratchet (8).
2. the locking fixture of pawl type according to claim 1, is characterized in that, described spring (7) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816947.0U CN203843517U (en) | 2014-04-16 | 2014-04-16 | Pawl-type anti-loose fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816947.0U CN203843517U (en) | 2014-04-16 | 2014-04-16 | Pawl-type anti-loose fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203843517U true CN203843517U (en) | 2014-09-24 |
Family
ID=51556575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816947.0U Expired - Fee Related CN203843517U (en) | 2014-04-16 | 2014-04-16 | Pawl-type anti-loose fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203843517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043981A (en) * | 2013-12-13 | 2014-09-17 | 芜湖市天雄新材料科技有限公司 | Pawl type anti-loosening clamp |
-
2014
- 2014-04-16 CN CN201320816947.0U patent/CN203843517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043981A (en) * | 2013-12-13 | 2014-09-17 | 芜湖市天雄新材料科技有限公司 | Pawl type anti-loosening clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |