CN203679847U - Pressure-controllable and pawl anti-loosening type fine adjustment clamp - Google Patents
Pressure-controllable and pawl anti-loosening type fine adjustment clamp Download PDFInfo
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- CN203679847U CN203679847U CN201320826416.XU CN201320826416U CN203679847U CN 203679847 U CN203679847 U CN 203679847U CN 201320826416 U CN201320826416 U CN 201320826416U CN 203679847 U CN203679847 U CN 203679847U
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- China
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- screw rod
- fine adjustment
- ratchet
- fixed block
- clamp
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Abstract
The utility model discloses a pressure-controllable and pawl anti-loosening type fine adjustment clamp and belongs to the field of clamps. The pressure-controllable and pawl anti-loosening type fine adjustment clamp comprises a clamp base, a left fixing block, a big screw rod, a left clamping block, a right clamping block, a guide rod, a fine adjustment screw rod, a right fixing block, pawl anti-loosening devices, a gear, an outer ring, a spring, a pawl, screws and scale discs, wherein a dovetail groove is formed in the clamp base, the left fixing block and the right fixing block are arranged at the two ends of the dovetail groove, threads are arranged at both the two ends of the fine adjustment screw rod, one end of the fine adjustment screw rod is assembled in a threaded hole of the guide rod, the other end of the fine adjustment screw rod is meshed with threads of the right fixing block, the rotation directions of the threads at the two ends of the fine adjustment screw rod are the same, the pawl anti-loosening devices are arranged on both the big screw rod and the fine adjustment screw rod, and the scale discs are also arranged on the big screw rod and the fine adjustment screw rod. The problems of the existing clamp, such as difficult fine adjustment, low positioning precision, easy loosening and difficult clamping force control are solved. The pressure-controllable and pawl anti-loosening type fine adjustment clamp has the advantages of simple structure, reasonable design and easiness in manufacture.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of pressure controllable type ratchet anti-loosing type fine tuning fixture for piece-holder.
Background technology
In machine industry, utilize lathe to process all kinds of workpiece, utilize clamping device that workpiece is fixed adding man-hour requirement, thereby realize cylindrical, end face, screw thread and the axial machining such as cut-out.For the not high part of machining accuracy, generally can directly on platen face, adjust and realize positioning and clamping, the position of part is determined in the setting that by machining coordinate is then.And for the higher workpiece of requirement on machining accuracy, must repeatedly proofread the relative position of workpiece and lathe tool, therefore must increase positioning precision.Plain clamp can not be finely tuned simultaneously, causes the control of clamping force to be difficult for, and too pine does not have positioning action, too tightly damages surface of the work, even compression failure workpiece.The vibration of lathe and the effect of cutting force in process simultaneously, causes fixture to occur loosening, and then because piece-holder power causes the loosening of workpiece not, has reduced machining accuracy, when serious, will cause workpiece to be thrown out of the generation of accident.
Summary of the invention
The fine setting causing for existing fixture is difficult for, positioning precision is not high, easy loosening, the uppity problem of chucking power, the invention provides a kind of pressure controllable type ratchet anti-loosing type fine tuning fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure controllable type ratchet anti-loosing type fine tuning fixture, comprises clamping fixture seat, left fixed block, large screw rod, left clamp, right clamp, guide rod, fine setting screw rod, right fixed block, ratchet locking device, gear, outer ring, spring, ratchet, screw, dial, on described clamping fixture seat, be provided with dovetail groove, and be provided with left fixed block and right fixed block at dovetail groove two ends, on described left fixed block and right fixed block, be equipped with screwed hole, described left clamp and right clamp are all assemblied in the dovetail groove on clamping fixture seat, described large screw rod one end and left clamp are connected, the threaded engagement of the other end and left fixed block, described guide rod one end and right clamp are connected, the other end is provided with screwed hole, described fine setting screw rod two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod, the threaded engagement of the other end and right fixed block, and the thread rotary orientation at described fine setting screw rod two ends is identical, on described large screw rod and fine setting screw rod, be equipped with ratchet locking device, described ratchet locking device is by gear, outer ring, spring, ratchet, screw composition, described gear is assemblied on large screw rod by key, described outer ring is fixed on clamping fixture seat, and be provided with screwed hole and spring, one end of described ratchet is hinged on outer ring, other end linking springs, and described screw is assemblied in the screwed hole of outer ring, and be pressed on ratchet, on described large screw rod and fine setting screw rod, be equipped with dial.
Described spring is extension spring, and described dial is provided with scale at its edge.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes differential attachment to carry out clamping, can utilize larger input to produce minimum displacement, and the convenient trace of realizing regulates, and makes positioning precision be improved simultaneously.
(2) the present invention utilizes gear and ratchet to realize the locking effect to large screw rod and fine setting screw rod, 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.
(3) the present invention is provided with dial on large screw rod and fine setting screw rod, can be the in the situation that of clamp fast moving, and guarantee 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.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is the cutaway view along A-A line in Fig. 1;
Fig. 3 is the cutaway view along B-B line in Fig. 1;
Fig. 4 is the cutaway view along C-C line in Fig. 1.
In figure: 1-clamping fixture seat, 2-left fixed block, 3-large screw rod, 4-left clamp, 5-right clamp, 6-guide rod, 7-fine setting screw rod, 8-right fixed block, 9-ratchet locking device, 10-gear, 11-outer ring, 12-spring, 13-ratchet, 14-screw, 15-dial.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure controllable type ratchet anti-loosing type fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, large screw rod 3, left clamp 4, right clamp 5, guide rod 6, fine setting screw rod 7, right fixed block 8, ratchet locking device 9, gear 10, outer ring 11, spring 12, ratchet 13, screw 14, dial 15, on described clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 8 at dovetail groove two ends, on described left fixed block 2 and right fixed block 8, be equipped with screwed hole, described left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, described large screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, described guide rod 6 one end and right clamp 5 are connected, the other end is provided with screwed hole, described fine setting screw rod 7 two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod 6, the threaded engagement of the other end and right fixed block 8, and the thread rotary orientation at described fine setting screw rod 7 two ends is identical, on described large screw rod 3 and fine setting screw rod 7, be equipped with ratchet locking device 9, described ratchet locking device 9 is by gear 10, outer ring 11, spring 12, ratchet 13, screw 14 forms, described gear 10 is assemblied on large screw rod 3 by key, described outer ring 11 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 12, one end of described ratchet 13 is hinged on outer ring 11, other end linking springs 12, and described screw 14 is assemblied in the screwed hole of outer ring 11, and be pressed on ratchet 13, on described large screw rod 3 and fine setting screw rod 7, be equipped with dial 15.
Described spring 12 is extension spring, and described dial 15 is provided with scale at its edge.
embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure controllable type ratchet anti-loosing type fine tuning fixture comprises clamping fixture seat 1, left fixed block 2, large screw rod 3, left clamp 4, right clamp 5, guide rod 6, fine setting screw rod 7, right fixed block 8, ratchet locking device 9, gear 10, outer ring 11, spring 12, ratchet 13, screw 14, dial 15, on described clamping fixture seat 1, be provided with dovetail groove, and be provided with left fixed block 2 and right fixed block 8 at dovetail groove two ends, on described left fixed block 2 and right fixed block 8, be equipped with screwed hole, described left clamp 4 and right clamp 5 are all assemblied in the dovetail groove on clamping fixture seat 1, described large screw rod 3 one end and left clamp 4 are connected, the threaded engagement of the other end and left fixed block 2, described guide rod 6 one end and right clamp 5 are connected, the other end is provided with screwed hole, described fine setting screw rod 7 two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod 6, the threaded engagement of the other end and right fixed block 8, and the thread rotary orientation at described fine setting screw rod 7 two ends is identical, on described large screw rod 3 and fine setting screw rod 7, be equipped with ratchet locking device 9, described ratchet locking device 9 is by gear 10, outer ring 11, spring 12, ratchet 13, screw 14 forms, described gear 10 is assemblied on large screw rod 3 by key, described outer ring 11 is fixed on clamping fixture seat 1, and be provided with screwed hole and spring 12, one end of described ratchet 13 is hinged on outer ring 11, other end linking springs 12, and described screw 14 is assemblied in the screwed hole of outer ring 11, and be pressed on ratchet 13, on described large screw rod 3 and fine setting screw rod 7, be equipped with dial 15.
Described spring 12 is extension spring, and described dial 15 is provided with scale at its edge, and scale adopts angle system.
Claims (3)
1. a pressure controllable type ratchet anti-loosing type fine tuning fixture, comprise clamping fixture seat (1), left fixed block (2), large screw rod (3), left clamp (4), right clamp (5), guide rod (6), fine setting screw rod (7), right fixed block (8), ratchet locking device (9), gear (10), outer ring (11), spring (12), ratchet (13), screw (14), dial (15), it is characterized in that, on described clamping fixture seat (1), be provided with dovetail groove, and be provided with left fixed block (2) and right fixed block (8) at dovetail groove two ends, on described left fixed block (2) and right fixed block (8), be equipped with screwed hole, described left clamp (4) and right clamp (5) are all assemblied in the dovetail groove on clamping fixture seat (1), described large screw rod (3) one end and left clamp (4) are connected, the threaded engagement of the other end and left fixed block (2), described guide rod (6) one end and right clamp (5) are connected, the other end is provided with screwed hole, described fine setting screw rod (7) two ends are equipped with screw thread, its one end is assemblied in the screwed hole of guide rod (6), the threaded engagement of the other end and right fixed block (8), the thread rotary orientation at described fine setting screw rod (7) two ends is identical, on described large screw rod (3) and fine setting screw rod (7), be equipped with ratchet locking device (9), described ratchet locking device (9) is by gear (10), outer ring (11), spring (12), ratchet (13), screw (14) composition, described gear (10) is assemblied on large screw rod (3) by key, described outer ring (11) is fixed on clamping fixture seat (1), and be provided with screwed hole and spring (12), one end of described ratchet (13) is hinged on outer ring (11), other end linking springs (12), described screw (14) is assemblied in the screwed hole of outer ring (11), and be pressed on ratchet (13), on described large screw rod (3) and fine setting screw rod (7), be equipped with dial (15).
2. pressure controllable type ratchet anti-loosing type fine tuning fixture according to claim 1, is characterized in that, described spring (12) is extension spring.
3. pressure controllable type ratchet anti-loosing type fine tuning fixture according to claim 1, is characterized in that, described dial (15) is provided with scale at its edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826416.XU CN203679847U (en) | 2013-12-16 | 2013-12-16 | Pressure-controllable and pawl anti-loosening type fine adjustment clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826416.XU CN203679847U (en) | 2013-12-16 | 2013-12-16 | Pressure-controllable and pawl anti-loosening type fine adjustment clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203679847U true CN203679847U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320826416.XU Expired - Fee Related CN203679847U (en) | 2013-12-16 | 2013-12-16 | Pressure-controllable and pawl anti-loosening type fine adjustment clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203679847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107398317A (en) * | 2017-09-19 | 2017-11-28 | 门得赛特（天津）科技有限公司 | Laboratory instrument storage fixing device and operation method |
-
2013
- 2013-12-16 CN CN201320826416.XU patent/CN203679847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107398317A (en) * | 2017-09-19 | 2017-11-28 | 门得赛特（天津）科技有限公司 | Laboratory instrument storage fixing device and operation method |
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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: 20140702 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |