CN203726160U - Limiting type loosening-preventing clamp - Google Patents
Limiting type loosening-preventing clamp Download PDFInfo
- Publication number
- CN203726160U CN203726160U CN201320816946.6U CN201320816946U CN203726160U CN 203726160 U CN203726160 U CN 203726160U CN 201320816946 U CN201320816946 U CN 201320816946U CN 203726160 U CN203726160 U CN 203726160U
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- CN
- China
- Prior art keywords
- clamp
- lever
- ratchet
- spring
- limiting type
- 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 - Fee Related
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Abstract
The utility model discloses a limiting type loosening-preventing clamp, and belongs to the field of clamps. The limiting type loosening-preventing clamp comprises clamp bases, a screw, moving blocks and clamping blocks. The upper ends of the clamp bases press the concave edges of the lower ends of the moving blocks. The limiting type loosening-preventing clamp further comprises a ratchet wheel, a running pulley, levers, a spring and a bolt. The ratchet wheel is arranged on the screw through a key, the running pulley is connected to the levers through a hinge, the two ends of the spring are connected to the levers on the two sides of the ratchet wheel, and the bolt penetrates through unthreaded holes reserved in the levers. The limiting type loosening-preventing clamp solves the problems that an existing clamp is unreliable in clamping and prone to loosening, and has the advantages of being simple in structure, reasonable in design and easy to manufacture.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of for preventing the locking fixture of the loosening restraint-type of piece-holder.
Background technology
In machine industry, lathe is widely used in processing all kinds of parts, in the time of 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 restraint-type.
For addressing the above problem, the present invention adopts following technical scheme.
The locking fixture of a kind of restraint-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 ratchet, roller, lever, spring, bolt, described ratchet is assemblied on screw rod by key, the quantity of described lever is 2, divide and be located at ratchet both sides, and be all hinged on clamping fixture seat, and away from one end of clamping fixture seat, unthreaded hole is set at lever, described roller is connected through the hinge on lever, the two ends of described spring are connected on the lever of ratchet both sides, described bolt is through the reserved unthreaded hole of lever.
Described spring is extension spring.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes ratchet and roller to realize the locking effect to screw rod, and in the course of the work, the locking to screw rod due to ratchet and roller, 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 adopts two symmetrical rollers, has eliminated radial load screw rod being caused because of locking effect, has improved the service life of fixture.
(3) the present invention is simple in structure, reasonable in design, is easy to manufacture.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is that A in Fig. 1 is to view.
In figure: 1-clamping fixture seat, 2-screw rod, 3-movable block, 4-clamp, 5-ratchet, 6-roller, 7-lever, 8-spring, 9-bolt.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing.
As Fig. 1, shown in Fig. 2, the locking fixture of restraint-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 ratchet 5, roller 6, lever 7, spring 8, bolt 9, described ratchet 5 is assemblied on screw rod 2 by key, the quantity of described lever 7 is 2, divide and be located at ratchet 5 both sides, and be all hinged on clamping fixture seat 1, and away from one end of clamping fixture seat 1, unthreaded hole is set at lever 7, described roller 6 is connected through the hinge on lever 7, the two ends of described spring 8 are connected on the lever 7 of ratchet 5 both sides, described bolt 9 is through the reserved unthreaded hole of lever 7.
Described spring 8 is extension spring.
embodiment 1
As Fig. 1, shown in Fig. 2, the locking fixture of restraint-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 ratchet 5, roller 6, lever 7, spring 8, bolt 9, described ratchet 5 is assemblied on screw rod 2 by key, the quantity of described lever 7 is 2, divide and be located at ratchet 5 both sides, and be all hinged on clamping fixture seat 1, and away from one end of clamping fixture seat 1, unthreaded hole is set at lever 7, described roller 6 is connected through the hinge on lever 7, the two ends of described spring 8 are connected on the lever 7 of ratchet 5 both sides, described bolt 9 is through the reserved unthreaded hole of lever 7.
Described spring 8 is extension spring, and its cross section is circular.
Claims (2)
1. the locking fixture of restraint-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 ratchet (5), roller (6), lever (7), spring (8), bolt (9), described ratchet (5) is assemblied on screw rod (2) by key, the quantity of described lever (7) is 2, divide and be located at ratchet (5) both sides, and be all hinged on clamping fixture seat (1), and away from one end of clamping fixture seat (1), unthreaded hole is set at lever (7), described roller (6) is connected through the hinge on lever (7), the two ends of described spring (8) are connected on the lever (7) of ratchet (5) both sides, described bolt (9) is through the reserved unthreaded hole of lever (7).
2. the locking fixture of restraint-type according to claim 1, is characterized in that, described spring (8) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816946.6U CN203726160U (en) | 2013-12-13 | 2013-12-13 | Limiting type loosening-preventing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816946.6U CN203726160U (en) | 2013-12-13 | 2013-12-13 | Limiting type loosening-preventing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726160U true CN203726160U (en) | 2014-07-23 |
Family
ID=51196268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816946.6U Expired - Fee Related CN203726160U (en) | 2013-12-13 | 2013-12-13 | Limiting type loosening-preventing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722398A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Limiting type anti-disengagement clamp |
| CN116714881A (en) * | 2023-08-07 | 2023-09-08 | 哈尔滨瀚邦医疗科技有限公司 | High performance liquid chromatograph |
-
2013
- 2013-12-13 CN CN201320816946.6U patent/CN203726160U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722398A (en) * | 2013-12-13 | 2014-04-16 | 芜湖市天雄新材料科技有限公司 | Limiting type anti-disengagement clamp |
| CN116714881A (en) * | 2023-08-07 | 2023-09-08 | 哈尔滨瀚邦医疗科技有限公司 | High performance liquid chromatograph |
| CN116714881B (en) * | 2023-08-07 | 2023-11-10 | 哈尔滨瀚邦医疗科技有限公司 | High performance liquid chromatograph |
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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: 20140723 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |