CN203726194U - Worm-self-locking looseness preventing type fine tuning clamp - Google Patents
Worm-self-locking looseness preventing type fine tuning clamp Download PDFInfo
- Publication number
- CN203726194U CN203726194U CN201320813998.8U CN201320813998U CN203726194U CN 203726194 U CN203726194 U CN 203726194U CN 201320813998 U CN201320813998 U CN 201320813998U CN 203726194 U CN203726194 U CN 203726194U
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- fixed block
- worm
- clamp
- fine tuning
- self
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Abstract
The utility model discloses a worm-self-locking looseness preventing type fine tuning clamp and belongs to the field of clamps. The worm-self-locking looseness preventing type fine tuning clamp comprises a clamp base, a left fixed block, a large screw stem, a left clamping block, a right clamping block, a guide rod, a fine tuning screw stem, a right fixed block, worm-self-locking looseness preventing devices, worm gears and worms. The clamp base is provided with a dovetail groove. The left fixed block and the right fixed block are arranged at the two ends of the dovetail groove. The two ends of the fine tuning screw stem are provided with threads, one end being mounted in a threaded hole of the guide rod and the other end being meshed with a thread of the right fixed block. The thread running directions of the two ends of the fine tuning screw stem are opposite. The large screw stem and the fine tuning screw stem are provided with the worm-self-locking looseness preventing devices. The fine tuning clamp solves the problems of difficulty in fine tuning, low locating precision and frequent looseness of the conventional clamp 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 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 that causes for existing fixture is difficult for, positioning precision is not high, easy loosening problem, the invention provides a kind of worm screw automatic locking anti-loosing fine tuning fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of 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, on described clamping fixture seat, be provided with dovetail groove, and at dovetail groove two ends, be provided with left fixed block and right fixed block, 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 comprised 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.
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.
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 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;
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.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, 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, on described clamping fixture seat 1, be provided with dovetail groove, and at dovetail groove two ends, be provided with left fixed block 2 and right fixed block 8, 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 comprised 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.
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.
embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, 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, on described clamping fixture seat 1, be provided with dovetail groove, and at dovetail groove two ends, be provided with left fixed block 2 and right fixed block 8, 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 comprised 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.
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 °.
embodiment 2
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, 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, on described clamping fixture seat 1, be provided with dovetail groove, and at dovetail groove two ends, be provided with left fixed block 2 and right fixed block 8, 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 comprised 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.
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 °.
Claims (2)
1. a 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), it is characterized in that, described clamping fixture seat is provided with dovetail groove on (1), and at dovetail groove two ends, be provided with left fixed block (2) and right fixed block (8), 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 comprised 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).
2. 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813998.8U CN203726194U (en) | 2013-12-12 | 2013-12-12 | Worm-self-locking looseness preventing type fine tuning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813998.8U CN203726194U (en) | 2013-12-12 | 2013-12-12 | Worm-self-locking looseness preventing type fine tuning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726194U true CN203726194U (en) | 2014-07-23 |
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ID=51196302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813998.8U Expired - Fee Related CN203726194U (en) | 2013-12-12 | 2013-12-12 | Worm-self-locking looseness preventing type fine tuning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769916A (en) * | 2013-12-12 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | Worm self-locking and looseness-preventing type fine adjustment clamp |
| CN110301661A (en) * | 2019-08-13 | 2019-10-08 | 浙江理工大学 | Garlic root relief device and its root relief method |
-
2013
- 2013-12-12 CN CN201320813998.8U patent/CN203726194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769916A (en) * | 2013-12-12 | 2014-05-07 | 芜湖市天雄新材料科技有限公司 | Worm self-locking and looseness-preventing type fine adjustment clamp |
| CN110301661A (en) * | 2019-08-13 | 2019-10-08 | 浙江理工大学 | Garlic root relief device and its root relief method |
| CN110301661B (en) * | 2019-08-13 | 2020-08-21 | 浙江理工大学 | Garlic root pruning device and root pruning method thereof |
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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 |