CN203665113U - Pressure-controllable type worm self-locking anti-loosing clamp - Google Patents
Pressure-controllable type worm self-locking anti-loosing clamp Download PDFInfo
- Publication number
- CN203665113U CN203665113U CN201320813886.2U CN201320813886U CN203665113U CN 203665113 U CN203665113 U CN 203665113U CN 201320813886 U CN201320813886 U CN 201320813886U CN 203665113 U CN203665113 U CN 203665113U
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- clamp
- worm
- controllable type
- screw
- pressure
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Abstract
The utility model discloses a pressure-controllable type worm self-locking anti-loosing clamp, and belongs to the field of clamps. The pressure-controllable type worm self-locking anti-loosing clamp comprises a clamp base, a screw, a moving block and a clamping block, the upper end of the clamp base presses the concave edge of the lower end of the moving block, the lower end of the clamping block presses the concave edge of the upper end of the moving block, the screw is meshed with the moving block, the pressure-controllable type worm self-locking anti-loosing clamp further comprises a worm gear, a worm and a dial, the worm gear is assembled on the screw through a key, the worm is assembled on the clamp base through a rolling shaft and meshed with the worm gear, and the dial is fixed on the worm. The pressure-controllable type worm self-locking anti-loosing clamp solves the problem that an existing clamp is not reliable in clamping, not prone to controlling clamping force and easy to loose, and has the advantages of being simple in structure, reasonable in design and easy to manufacture.
Description
Technical field
The invention belongs to fixture field, more particularly, relate to a kind of pressure controllable type worm screw self-locking fixture for preventing that piece-holder is loosening.
Background technology
In machine industry, lathe is widely used in processing all kinds of parts, in the time of 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 ensure that fixture chucking power in the time of 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 a kind of pressure controllable type worm screw self-locking fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure controllable type worm screw self-locking fixture, 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, and screw rod is meshed with movable block, also comprises worm gear, worm screw, dial, described worm gear is assemblied on screw rod by key, described worm screw is assemblied in clamping fixture seat by rolling bearing, and is meshed with worm gear, and 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.
Than prior art, beneficial effect of the present invention is:
(1) the present invention utilizes worm geared self-locking performance to realize the locking of fixture, locking reliable and compact conformation.
(2) 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.
(3) 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.
(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.
In figure: 1-clamping fixture seat, 2-screw rod, 3-movable block, 4-clamp, 5-worm gear, 6-worm screw, 7-dial.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture 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 worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.
embodiment 1
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture 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 worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.Described worm screw 6 is single start worm, and its section flank profil is spiral of Archimedes.
As shown in Figure 1 and Figure 2, pressure controllable type worm screw self-locking fixture 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 worm gear 5, worm screw 6, dial 7, described worm gear 5 is assemblied on screw rod 2 by key, described worm screw 6 is assemblied in clamping fixture seat 1 by rolling bearing, and be meshed with worm gear 5, described dial 7 is fixed on worm screw 6.
The angle of spiral of described worm screw 6 is less than the equivalent friction angle of the field of conjugate action of itself and worm gear 5.Described worm screw 6 is double-thread worm, and its section flank profil is concave arc.
Claims (2)
1. a pressure controllable type worm screw self-locking fixture, 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 worm gear (5), worm screw (6), dial (7), described worm gear (5) is assemblied on screw rod (2) by key, described worm screw (6) is assemblied in clamping fixture seat (1) by rolling bearing, and be meshed with worm gear (5), described dial (7) is fixed on worm screw (6).
2. pressure controllable type worm screw self-locking fixture according to claim 1, is characterized in that, the angle of spiral of described worm screw (6) is less than the equivalent friction angle of the field of conjugate action of itself and worm gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813886.2U CN203665113U (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable type worm self-locking anti-loosing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813886.2U CN203665113U (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable type worm self-locking anti-loosing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203665113U true CN203665113U (en) | 2014-06-25 |
Family
ID=50961446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813886.2U Expired - Fee Related CN203665113U (en) | 2013-12-12 | 2013-12-12 | Pressure-controllable type worm self-locking anti-loosing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203665113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737343A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Pressure-controllable worm self-locking type anti-loosing fixture |
-
2013
- 2013-12-12 CN CN201320813886.2U patent/CN203665113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737343A (en) * | 2013-12-12 | 2014-04-23 | 芜湖市天雄新材料科技有限公司 | Pressure-controllable worm self-locking 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: 20140625 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |