CN203726156U - Limit looseness preventing type fine tuning clamp - Google Patents
Limit looseness preventing type fine tuning clamp Download PDFInfo
- Publication number
- CN203726156U CN203726156U CN201320814196.9U CN201320814196U CN203726156U CN 203726156 U CN203726156 U CN 203726156U CN 201320814196 U CN201320814196 U CN 201320814196U CN 203726156 U CN203726156 U CN 203726156U
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- China
- Prior art keywords
- fixed block
- screw rod
- fine tuning
- clamp
- lever
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- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 241001661918 Bartonia Species 0.000 abstract 6
- 238000003754 machining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses a limit looseness preventing type fine tuning clamp and belongs to the field of clamps. The limit 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 and limit looseness preventing devices. 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 limit 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 restriction 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 that causes for existing fixture is difficult for, positioning precision is not high, easy loosening problem, the invention provides a kind of anti-loosing type fine tuning fixture that limits.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of restriction anti-loosing type 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, restriction locking device, 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 fine setting screw rod and large screw rod, be provided with restriction locking device.
Described restriction locking device is made up of ratchet, roller, lever, spring, bolt, described ratchet is assemblied on large 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 be 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, and 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 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 ratchet and roller to realize the locking effect to fine setting screw rod and large screw rod, in the course of the work, the locking to screw rod due to ratchet and roller, has played the locking of fine setting screw rod and large screw rod, and then makes fixture can not occur becoming flexible because of the effect of vibration and cutting force.
(3) 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.
(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 that C in Fig. 1 is to view.
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-restriction locking device, 10-ratchet, 11-roller, 12-lever, 13-spring, 14-bolt.
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, restriction 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, restriction locking device 9, 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 fine setting screw rod 7 and large screw rod 3, is provided with restriction locking device 9.
Described restriction locking device 9 is made up of ratchet 10, roller 11, lever 12, spring 13, bolt 14, described ratchet 10 is assemblied on large screw rod 3 by key, the quantity of described lever 12 is 2, divide and be located at ratchet 10 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 12, described roller 11 is connected through the hinge on lever 12, the two ends of described spring 13 are connected on the lever 12 of ratchet 10 both sides, and described bolt 14 is through the reserved unthreaded hole of lever 12.
Described spring 13 is extension spring.
embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, restriction 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, restriction locking device 9, 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 fine setting screw rod 7 and large screw rod 3, is provided with restriction locking device 9.
Described restriction locking device 9 is made up of ratchet 10, roller 11, lever 12, spring 13, bolt 14, described ratchet 10 is assemblied on large screw rod 3 by key, the quantity of described lever 12 is 2, divide and be located at ratchet 10 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 12, described roller 11 is connected through the hinge on lever 12, the two ends of described spring 13 are connected on the lever 12 of ratchet 10 both sides, and described bolt 14 is through the reserved unthreaded hole of lever 12.
Described spring 13 is extension spring, and its cross section is circular.
Claims (3)
1. a restriction 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), restriction locking device (9), 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 fine setting screw rod (7) and large screw rod (3), be provided with restriction locking device (9).
2. restriction anti-loosing type fine tuning fixture according to claim 1, it is characterized in that, described restriction locking device (9) is by ratchet (10), roller (11), lever (12), spring (13), bolt (14) composition, described ratchet (10) is assemblied on large screw rod (3) by key, the quantity of described lever (12) is 2, divide and be located at ratchet (10) 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 (12), described roller (11) is connected through the hinge on lever (12), the two ends of described spring (13) are connected on the lever (12) of ratchet (10) both sides, described bolt (14) is through the reserved unthreaded hole of lever (12).
3. restriction anti-loosing type fine tuning fixture according to claim 2, is characterized in that, described spring (13) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814196.9U CN203726156U (en) | 2013-12-12 | 2013-12-12 | Limit looseness preventing type fine tuning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814196.9U CN203726156U (en) | 2013-12-12 | 2013-12-12 | Limit looseness preventing type fine tuning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726156U true CN203726156U (en) | 2014-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320814196.9U Expired - Fee Related CN203726156U (en) | 2013-12-12 | 2013-12-12 | Limit looseness preventing type fine tuning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737348A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Limiting looseness-prevention fine adjustment fixture |
-
2013
- 2013-12-12 CN CN201320814196.9U patent/CN203726156U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737348A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Limiting looseness-prevention fine adjustment 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 |