CN203726159U - Worm self-locking anti-looseness fixture allowing pressure to be measurable - Google Patents
Worm self-locking anti-looseness fixture allowing pressure to be measurable Download PDFInfo
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- CN203726159U CN203726159U CN201320816845.9U CN201320816845U CN203726159U CN 203726159 U CN203726159 U CN 203726159U CN 201320816845 U CN201320816845 U CN 201320816845U CN 203726159 U CN203726159 U CN 203726159U
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- worm
- fixture
- clamping
- screw
- looseness
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- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a worm self-locking anti-looseness fixture allowing pressure to be measurable, and belongs to the field of fixtures. The worm self-locking anti-looseness fixture comprises fixture bases, a screw, moving blocks and clamping blocks, wherein the upper end of each fixture base is pressed on the concave edge of the lower end of the corresponding moving block, the lower end of each clamping block is pressed on the concave edge of the upper end of the corresponding moving block, and the screw is meshed with the moving blocks. The worm self-locking anti-looseness fixture further comprises a worm gear, a worm and pressure sensors, wherein the worm gear is assembled on the screw through a key, the worm is assembled on the fixture bases through a rolling bearing and meshed with the worm gear, and the pressure sensors are arranged on the clamping surfaces of the clamping blocks respectively. The worm self-locking anti-looseness fixture solves the problems that an existing fixture is unreliable in clamping and prone to loosening, and clamping force is difficult to control, 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 measurable 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, when 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 guarantee that fixture chucking power when 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 measurable type worm screw self-locking fixture.
For addressing the above problem, the present invention adopts following technical scheme.
A kind of pressure measurable 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, pressure sensor, 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 pressure sensor is arranged on the clamping area of clamp.
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 pressure sensor on clamp, can be the in the situation that of clamp fast moving, and assurance clamp in OK range, is unlikely to damage workpiece to the pressure of workpiece; Pressure during simultaneously Workpiece clamping for unlike material and size 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.
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.
In figure: 1-clamping fixture seat, 2-screw rod, 3-movable block, 4-clamp, 5-worm gear, 6-worm screw, 7-pressure sensor.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1 and Figure 2, pressure measurable 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, pressure sensor 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 pressure sensor 7 is arranged on the clamping area of clamp 4.
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 measurable 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, pressure sensor 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 pressure sensor 7 is arranged on the clamping area of clamp 4.
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.
embodiment 2
As shown in Figure 1 and Figure 2, pressure measurable 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, pressure sensor 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 pressure sensor 7 is arranged on the clamping area of clamp 4.
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 measurable 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), pressure sensor (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 pressure sensor (7) is arranged on the clamping area of clamp (4).
2. pressure measurable 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 |
|---|---|---|---|
| CN201320816845.9U CN203726159U (en) | 2013-12-13 | 2013-12-13 | Worm self-locking anti-looseness fixture allowing pressure to be measurable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816845.9U CN203726159U (en) | 2013-12-13 | 2013-12-13 | Worm self-locking anti-looseness fixture allowing pressure to be measurable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203726159U true CN203726159U (en) | 2014-07-23 |
Family
ID=51196267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816845.9U Expired - Fee Related CN203726159U (en) | 2013-12-13 | 2013-12-13 | Worm self-locking anti-looseness fixture allowing pressure to be measurable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203726159U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043982A (en) * | 2013-12-13 | 2014-09-17 | 芜湖市天雄新材料科技有限公司 | Pressure measurable worm self-locking locking clamp |
| CN111467197A (en) * | 2020-04-26 | 2020-07-31 | 桐乡市爱康康复设备有限公司 | A kind of multi-screw lifting aid station rollator |
-
2013
- 2013-12-13 CN CN201320816845.9U patent/CN203726159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043982A (en) * | 2013-12-13 | 2014-09-17 | 芜湖市天雄新材料科技有限公司 | Pressure measurable worm self-locking locking clamp |
| CN111467197A (en) * | 2020-04-26 | 2020-07-31 | 桐乡市爱康康复设备有限公司 | A kind of multi-screw lifting aid station rollator |
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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: 20141213 |
|
| EXPY | Termination of patent right or utility model |