CN203726158U - A pressure-controllable limit type looseness preventing clamp - Google Patents
A pressure-controllable limit type looseness preventing clamp Download PDFInfo
- Publication number
- CN203726158U CN203726158U CN201320814230.2U CN201320814230U CN203726158U CN 203726158 U CN203726158 U CN 203726158U CN 201320814230 U CN201320814230 U CN 201320814230U CN 203726158 U CN203726158 U CN 203726158U
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- CN
- China
- Prior art keywords
- clamp
- lever
- screw rod
- ratchet
- spring
- 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 pressure-controllable limit type looseness preventing clamp and belongs to the field of clamps. The clamp comprises a clamp base, a screw stem, moving blocks and clamping blocks. The screw stem is meshed with the moving blocks. The clamp further comprises a ratchet wheel, rollers, levers, a spring, a bolt and an index dial. The ratchet wheel is installed on the screw stem through keys. The two ends of the spring are connected to the levers on the two sides of the ratchet wheel. The bolt passes through reserved unthreaded holes of the levers. The index dial is fixed to the screw stem. The clamp solves the problems that the conventional clamp is unreliable in clamping, the clamping force is difficult to control and the conventional clamp becomes loose easily, and has the advantages of simple structure, reasonable design and easy manufacture.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of locking fixture of pressure controllable type restraint-type for preventing that piece-holder is loosening.
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.Need to guarantee that fixture chucking power when clamping work pieces easily controls simultaneously.
Summary of the invention
The clamping that causes for existing fixture is unreliable, chucking power is wayward, easy loosening problem, the invention provides the locking fixture of a kind of pressure controllable type restraint-type.
For addressing the above problem, the present invention adopts following technical scheme.
The locking fixture of a kind of pressure controllable type 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, dial, 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 dial is fixed on screw rod.
Described spring is Compress 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 provided with dial on screw rod, can be the in the situation that of clamp fast moving, and assurance clamp in OK range, is unlikely to damage workpiece to the pressure of workpiece; During simultaneously Workpiece clamping for unlike material and size, the reading of dial is made statistical table, convenient while operating in the future as contrasting, thereby increase work efficiency.
(4) 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 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, 10-dial.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As Fig. 1, shown in Fig. 2, the locking fixture of pressure controllable type 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, dial 10, 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 dial 10 is fixed on screw rod 2.
Described spring 8 is Compress Spring.
embodiment 1
As Fig. 1, shown in Fig. 2, the locking fixture of pressure controllable type 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, dial 10, 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 dial 10 is fixed on screw rod 2.
Described spring 8 is Compress Spring, and its cross section is circular.
Claims (2)
1. the locking fixture of pressure controllable type 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), dial (10), 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 dial (10) is fixed on screw rod (2).
2. the locking fixture of pressure controllable type restraint-type according to claim 1, is characterized in that, described spring (8) is Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814230.2U CN203726158U (en) | 2013-12-12 | 2013-12-12 | A pressure-controllable limit type looseness preventing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814230.2U CN203726158U (en) | 2013-12-12 | 2013-12-12 | A pressure-controllable limit type looseness preventing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726158U true CN203726158U (en) | 2014-07-23 |
Family
ID=51196266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320814230.2U Expired - Fee Related CN203726158U (en) | 2013-12-12 | 2013-12-12 | A pressure-controllable limit type looseness preventing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737344A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Pressure-controlling limiting type anti-loosing fixture |
-
2013
- 2013-12-12 CN CN201320814230.2U patent/CN203726158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737344A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Pressure-controlling limiting type anti-loosing fixture |
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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: 20141212 |
|
| EXPY | Termination of patent right or utility model |