CN203712337U - Pressure-controllable fine-adjustment clamp with worm self-locking and anti-loosening function - Google Patents
Pressure-controllable fine-adjustment clamp with worm self-locking and anti-loosening function Download PDFInfo
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- CN203712337U CN203712337U CN201320827370.3U CN201320827370U CN203712337U CN 203712337 U CN203712337 U CN 203712337U CN 201320827370 U CN201320827370 U CN 201320827370U CN 203712337 U CN203712337 U CN 203712337U
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- screw rod
- worm
- fine
- fixed block
- clamp
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Abstract
The utility model discloses a pressure-controllable fine-adjustment clamp with a worm self-locking and anti-loosening function, belonging to the field of clamps. The pressure-controllable fine-adjustment clamp comprises a clamp holder, 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, worm self-locking and anti-loosening devices, a worm wheel, a worm and an index dial, wherein the clamp holder is provided with a dovetail groove; the left fixing block and the right fixing block are arranged at two ends of the dovetail groove; two ends of the micro-adjustment screw rod are provided with threads; one end of the fine-adjustment screw rod is assembled in a threaded hole of the guide rod, and the other end of the fine-adjustment screw rod is meshed with the thread of the left fixing block; the spiral directions of the threads at two ends of the fine-adjustment screw rod are the same; the worm self-locking and anti-loosening devices are arranged on the big screw rod and the fine-adjustment screw rod; the index dial is fixed on the worm. The pressure-controllable fine-adjustment clamp disclosed by the utility model solves the problems that an existing clamp is not easy to fine-adjust, low in positioning precision, not easy to loosen and difficult in control of clamping force, and 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 pressure controllable type worm screw automatic locking anti-loosing 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 worm screw automatic locking anti-loosing fine tuning fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure controllable type worm screw automatic locking anti-loosing fine tuning fixture, comprise clamping fixture seat, left fixed block, large screw rod, left clamp, right clamp, guide rod, fine setting screw rod, right fixed block, worm screw self-locking anti-loosing device, worm gear, worm 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, 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 provided with worm screw self-locking anti-loosing device, described worm screw self-locking anti-loosing device is made up of worm gear and worm screw, described worm gear is assemblied on large screw rod by key, described worm screw is assemblied in clamping fixture seat by rolling bearing, and be meshed with worm gear, described dial is fixed on worm screw.
The angle of spiral of described worm screw is less than the equivalent friction angle of the field of conjugate action of itself and worm gear, 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 worm geared self-locking performance to realize the locking of fixture, locking reliable and compact conformation.
(3) when the present invention adopts worm-drive locking, because worm geared gearratio is large, can produce minimum output with the input compared with large, therefore be conducive to the clamping fine setting of fixture, thereby make positioning precision higher.
(4) the present invention is provided with dial on worm screw, 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.
(5) 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-worm screw self-locking anti-loosing device, 10-worm gear, 11-worm screw, 12-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 worm screw automatic locking anti-loosing 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, worm screw self-locking anti-loosing device 9, worm gear 10, worm screw 11, dial 12, 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 provided with worm screw self-locking anti-loosing device 9, described worm screw self-locking anti-loosing device 9 is made up of worm gear 10 and worm screw 11, described worm gear 10 is assemblied on large screw rod 3 by key, described worm screw 11 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 10, described dial 12 is fixed on worm screw 11.
The angle of spiral of described worm screw 11 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 10, and described dial 12 is provided with scale at its edge.
embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure controllable type worm screw automatic locking anti-loosing 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, worm screw self-locking anti-loosing device 9, worm gear 10, worm screw 11, dial 12, 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 provided with worm screw self-locking anti-loosing device 9, described worm screw self-locking anti-loosing device 9 is made up of worm gear 10 and worm screw 11, described worm gear 10 is assemblied on large screw rod 3 by key, described worm screw 11 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 10, described dial 12 is fixed on worm screw 11.
The angle of spiral of described worm screw 11 is 12 °, and the equivalent friction angle of the field of conjugate action of itself and worm gear 10 is 15 °, and described dial 12 is provided with scale at its edge, and scale adopts angle system.
embodiment 2
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, pressure controllable type worm screw automatic locking anti-loosing 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, worm screw self-locking anti-loosing device 9, worm gear 10, worm screw 11, dial 12, 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 provided with worm screw self-locking anti-loosing device 9, described worm screw self-locking anti-loosing device 9 is made up of worm gear 10 and worm screw 11, described worm gear 10 is assemblied on large screw rod 3 by key, described worm screw 11 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 10, described dial 12 is fixed on worm screw 11.
The angle of spiral of described worm screw 11 is 11 °, and the equivalent friction angle of the field of conjugate action of itself and worm gear 10 is 14 °, and described dial 12 is provided with scale at its edge, and scale adopts angle system.
Claims (3)
1. a pressure controllable type worm screw automatic locking anti-loosing 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), worm screw self-locking anti-loosing device (9), worm gear (10), worm screw (11), dial (12), 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 provided with worm screw self-locking anti-loosing device (9), described worm screw self-locking anti-loosing device (9) is made up of worm gear (10) and worm screw (11), described worm gear (10) is assemblied on large screw rod (3) by key, described worm screw (11) is assemblied in clamping fixture seat (1) by rolling bearing, and be meshed with worm gear (10), described dial (12) is fixed on worm screw (11).
2. pressure controllable type worm screw automatic locking anti-loosing fine tuning fixture according to claim 1, is characterized in that, the angle of spiral of described worm screw (11) is less than the equivalent friction angle of the field of conjugate action of itself and worm gear (10).
3. pressure controllable type worm screw automatic locking anti-loosing fine tuning fixture according to claim 1, is characterized in that, described dial (12) is provided with scale at its edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320827370.3U CN203712337U (en) | 2013-12-17 | 2013-12-17 | Pressure-controllable fine-adjustment clamp with worm self-locking and anti-loosening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320827370.3U CN203712337U (en) | 2013-12-17 | 2013-12-17 | Pressure-controllable fine-adjustment clamp with worm self-locking and anti-loosening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203712337U true CN203712337U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320827370.3U Expired - Fee Related CN203712337U (en) | 2013-12-17 | 2013-12-17 | Pressure-controllable fine-adjustment clamp with worm self-locking and anti-loosening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203712337U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015074A (en) * | 2013-12-17 | 2014-09-03 | 芜湖市天雄新材料科技有限公司 | Pressure controllable type worm self-locking anti-loose fine adjusting clamp |
| CN106442120A (en) * | 2016-12-02 | 2017-02-22 | 西南交通大学 | Fatigue test clamp device for T-shaped corner joint |
-
2013
- 2013-12-17 CN CN201320827370.3U patent/CN203712337U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015074A (en) * | 2013-12-17 | 2014-09-03 | 芜湖市天雄新材料科技有限公司 | Pressure controllable type worm self-locking anti-loose fine adjusting clamp |
| CN106442120A (en) * | 2016-12-02 | 2017-02-22 | 西南交通大学 | Fatigue test clamp device for T-shaped corner joint |
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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: 20140716 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |