CN103671471A - Universal ball joint with locking function - Google Patents
Universal ball joint with locking function Download PDFInfo
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- CN103671471A CN103671471A CN201310591327.6A CN201310591327A CN103671471A CN 103671471 A CN103671471 A CN 103671471A CN 201310591327 A CN201310591327 A CN 201310591327A CN 103671471 A CN103671471 A CN 103671471A
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- Prior art keywords
- cover plate
- deformable
- hole
- deformable bulb
- lever
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 239000011796 hollow space material Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 206010061258 Joint lock Diseases 0.000 description 1
- 206010034719 Personality change Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
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Abstract
The invention relates to a universal ball joint with the locking function and belongs to the technical field of nanoscale measurement. The universal ball joint comprises a fixing seat, a deformable ball head, a piezoceramic micro-displacement driver, a hemispherical cover plate, an output rod and a driver control system, wherein the piezoceramic micro-displacement driver is mounted in the driver mounting hole of the deformable ball head, the moving direction of the piezoceramic micro-displacement driver is consistent with the deforming direction of the deformable ball head, and the deformable ball head is mounted in a spherical cavity formed by the fixing seat and the hemispherical cover plate; the rear end of the output rod penetrates through the hemispherical cover plate to be in threaded connection with the threaded hole of the deformable ball head; the data cable of the driver control system penetrates through a data cable through hole in the center of the output rod to be connected with a piezoceramic micro-displacement driver circuit fixed on the deformable ball head. The universal ball joint provided by the invention not only realizes universal connection of two connecting piece, but also can realize locking of a working posture at a specific angle.
Description
Technical field
The present invention relates to a kind of universal ball joint of locking function, belong to nanometer measurement technical field.
Background technique
Nanometer measurement technical field, worktable was realized with being connected by flexible connecting structure of actuator.Flexible connecting structure adopt to reduce the partial structurtes rigidity of connected element, utilizes malformation to realize being connected of worktable and actuator.This Placement is reproducible, among a small circle in stable performance, shortcoming be flexibly connect with linkage structure Vertical direction on rigidity can diminish,, when the stressed generation minor variations of this Vertical direction upper table, can cause the variation of worktable attitude.It is unaffordable in nanometer measurement technical field that this attitude changes.
In precision mechanical transmission technical field, often use universal ball joint as the connected element at transmission position, universal ball joint is that the relative sliding in ball bowl is realized relative movement by bulb, the effect of universal ball joint is to change within the specific limits the spatial relation of releasing force mechanisms and force mechanism, thereby reduce the required precision of mutual alignment between the two, and also have in the vertical direction larger rigidity.Yet, for bulb ball bowl is slided freely, inevitably exist matching gap between the two, be bulb in ball bowl except existing necessary rotation, also there is extra translation, this translation can be born in general application, but in nanometer measurement technical field, is but a problem that must solve.
Summary of the invention
The object of the invention is in order to solve flexible connecting structure in nanometer measurement technology rigidity in vertical direction little, the problem that causes worktable attitude to change, and a kind of universal ball joint of locking function is provided.
The object of the invention is to be achieved through the following technical solutions:
The universal ball joint of a kind of locking function of the present invention, comprises fixed base, deformable bulb, piezoelectric micro-displacement actuator, hemisphere cover plate, take-off lever and driver control system;
Fixed base front end has hemi-spherical cavities, and place, the outer of this hemi-spherical cavities extends outward connected unit;
The rear end of hemisphere cover plate is the concave spherical surface matching with fixed base hemi-spherical cavities, and the center of hemisphere cover plate has take-off lever by hole, and place, the outer of hemisphere cover plate extends outward connected unit;
Deformable bulb is comprised of external diameter and fixed base and hemisphere cover plate the processing of sphere that spherical hollow space matches and forms, deformable bulb center has driver mounting hole, one side inwall of the driver mounting hole of deformable bulb outwards has tapped hole, the spheroid place, another both sides of the driver mounting hole of deformable bulb is processed with soft deformation structure, makes deformable bulb along having amount of deformation in tapped hole perforate direction;
The center of take-off lever has datawire by hole, and the rear end sidewall of take-off lever is processed with the thread section matching with deformable bulb upper screwed hole;
Piezoelectric micro-displacement actuator is installed in the driver mounting hole of deformable bulb, and make the moving direction of piezoelectric micro-displacement actuator consistent with the deformation direction of deformable bulb, deformable bulb is arranged on fixed base and hemisphere cover plate forms in spherical hollow space, and will between fixed base and hemisphere cover plate, by connected unit screw separately, fix; The rear end of take-off lever, is threaded with the tapped hole of the deformable bulb of its inside cavity by hole through the take-off lever of hemisphere cover plate; The datawire of driver control system passes the datawire at take-off lever center by piezoelectric micro-displacement actuator connection fixing on hole and deformable bulb.
Working procedure
Deformable bulb forms spherical cavity Spielpassung with fixed base and hemisphere cover plate under free state, and the take-off lever that deformable bulb front end is connected can be free to slide; When needs lock in certain fixed position, by driver control system, controlling piezoelectric micro-displacement actuator extends, thereby press closer fixed base and hemisphere cover plate after making deformable bulb by soft deformation structural stretch, form spherical cavity, the operating attitude of the take-off lever that deformable bulb is connected with front end is locked.
Beneficial effect
It is little that universal ball joint of the present invention has solved flexible connecting structure in nanometer measurement technology rigidity in vertical direction, the problem that causes worktable attitude to change, both realize the universal connection of two links, and can realize again the operating attitude locking at special angle.The present invention can be widely used in precision mechanical transmission field and nanometer measurement technical field.
Accompanying drawing explanation
Fig. 1 is the structural representation of universal ball joint of the present invention;
Fig. 2 is the structural representation of deformable bulb in universal ball joint of the present invention;
Fig. 3 is universal ball joint free movement state schematic diagram of the present invention;
Fig. 4 is universal ball joint lock state schematic diagram of the present invention;
Wherein, 1-fixed base; 2-deformable bulb; 3-piezoelectric micro-displacement actuator; 4-hemisphere cover plate; 5-take-off lever.
Embodiment
Below in conjunction with drawings and Examples, content of the present invention is described further.
Embodiment
The universal ball joint of a kind of locking function of the present invention, as shown in Figure 1, comprises fixed base 1, deformable bulb 2, piezoelectric micro-displacement actuator 3, hemisphere cover plate 4, take-off lever 5 and driver control system;
Fixed base 1 front end has hemi-spherical cavities, and place, the outer of this hemi-spherical cavities extends outward connected unit;
The rear end of hemisphere cover plate 4 is the concave spherical surface matching with fixed base 1 hemi-spherical cavities, and the center of hemisphere cover plate 4 has take-off lever by hole, and place, the outer of hemisphere cover plate 4 extends outward connected unit;
As shown in Figure 2, deformable bulb is comprised of external diameter and fixed base 1 and hemisphere cover plate 4 the processing of sphere that spherical hollow space matches and forms, deformable bulb center has driver mounting hole, one side inwall of the driver mounting hole of deformable bulb outwards has tapped hole, the spheroid place, another both sides of the driver mounting hole of deformable bulb is processed with the narrow groove of staggered cutting, makes deformable bulb along having amount of deformation in tapped hole perforate direction;
The center of take-off lever 5 has datawire by hole, and the rear end sidewall of take-off lever 5 is processed with the thread section matching with deformable bulb upper screwed hole;
Piezoelectric micro-displacement actuator 3 is installed in the driver mounting hole of deformable bulb, and make the moving direction of piezoelectric micro-displacement actuator 3 consistent with the deformation direction of deformable bulb, deformable bulb is arranged on fixed base 1 and hemisphere cover plate 4 forms in spherical hollow space, and will between fixed base 1 and hemisphere cover plate 4, by connected unit screw separately, fix; The rear end of take-off lever 5, is threaded with the tapped hole of the deformable bulb of its inside cavity by hole through the take-off lever of hemisphere cover plate 4; The datawire of driver control system passes the datawire at take-off lever 5 centers by piezoelectric micro-displacement actuator 3 connections fixing on hole and deformable bulb.
Working procedure
Claims (2)
1. a universal ball joint for locking function, is characterized in that: comprise fixed base, deformable bulb, piezoelectric micro-displacement actuator, hemisphere cover plate, take-off lever and driver control system;
Fixed base front end has hemi-spherical cavities, and place, the outer of this hemi-spherical cavities extends outward connected unit;
The rear end of hemisphere cover plate is the concave spherical surface matching with fixed base hemi-spherical cavities, and the center of hemisphere cover plate has take-off lever by hole, and place, the outer of hemisphere cover plate extends outward connected unit;
Deformable bulb is comprised of external diameter and fixed base and hemisphere cover plate the processing of sphere that spherical hollow space matches and forms, deformable bulb center has driver mounting hole, one side inwall of the driver mounting hole of deformable bulb outwards has tapped hole, the spheroid place, another both sides of the driver mounting hole of deformable bulb is processed with soft deformation structure, makes deformable bulb along having amount of deformation in tapped hole perforate direction;
The center of take-off lever has datawire by hole, and the rear end sidewall of take-off lever is processed with the thread section matching with deformable bulb upper screwed hole;
Piezoelectric micro-displacement actuator is installed in the driver mounting hole of deformable bulb, and make the moving direction of piezoelectric micro-displacement actuator consistent with the deformation direction of deformable bulb, deformable bulb is arranged on fixed base and hemisphere cover plate forms in spherical hollow space, and will between fixed base and hemisphere cover plate, by connected unit screw separately, fix; The rear end of take-off lever, is threaded with the tapped hole of the deformable bulb of its inside cavity by hole through the take-off lever of hemisphere cover plate; The datawire of driver control system passes the datawire at take-off lever center by piezoelectric micro-displacement actuator connection fixing on hole and deformable bulb.
2. the universal ball joint of a kind of locking function as claimed in claim 1, is characterized in that: the soft deformation structure of processing on deformable bulb is the narrow groove of staggered cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591327.6A CN103671471B (en) | 2013-11-20 | 2013-11-20 | A kind of universal ball joint of locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591327.6A CN103671471B (en) | 2013-11-20 | 2013-11-20 | A kind of universal ball joint of locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671471A true CN103671471A (en) | 2014-03-26 |
| CN103671471B CN103671471B (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310591327.6A Active CN103671471B (en) | 2013-11-20 | 2013-11-20 | A kind of universal ball joint of locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671471B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220086A (en) * | 2019-06-21 | 2019-09-10 | 中山宝益五金塑胶制品有限公司 | A kind of combined type sphere locking mechanism |
| CN110595407A (en) * | 2019-10-08 | 2019-12-20 | 青岛理工大学 | A mechanical micro-displacement output platform |
| CN112894651A (en) * | 2021-01-15 | 2021-06-04 | 中国第一汽车股份有限公司 | Multi-angle positioning and clamping device with double spherical structures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417407A (en) * | 1971-12-29 | 1975-12-10 | Tokai Trw & Co | Pre-loaded ball joint |
| EP0198933A2 (en) * | 1985-04-18 | 1986-10-29 | J.D. Möller Optische Werke GmbH | Load restraining pivot, especially for operation microscopes and suspension therefor |
| US20110051289A1 (en) * | 2009-08-28 | 2011-03-03 | Eiji Soga | Head-gimbal assembly including piezoelectric elements |
| US20120076570A1 (en) * | 2009-06-09 | 2012-03-29 | King Fahd University Of Petroleum And Minerals | Spherical joint with internal brake |
| DE102010041330A1 (en) * | 2010-09-24 | 2012-03-29 | Dr. Johannes Heidenhain Gmbh | Optical position measuring device |
| CN203037374U (en) * | 2012-11-23 | 2013-07-03 | 西安金和光学科技有限公司 | Optical fiber temperature measuring device for cable connector |
-
2013
- 2013-11-20 CN CN201310591327.6A patent/CN103671471B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417407A (en) * | 1971-12-29 | 1975-12-10 | Tokai Trw & Co | Pre-loaded ball joint |
| EP0198933A2 (en) * | 1985-04-18 | 1986-10-29 | J.D. Möller Optische Werke GmbH | Load restraining pivot, especially for operation microscopes and suspension therefor |
| US4834519A (en) * | 1985-04-18 | 1989-05-30 | Lorenz Twisselmann | Load-locking joint, particularly for surgery microscopes and suspension mount constructed for the same |
| US20120076570A1 (en) * | 2009-06-09 | 2012-03-29 | King Fahd University Of Petroleum And Minerals | Spherical joint with internal brake |
| US20110051289A1 (en) * | 2009-08-28 | 2011-03-03 | Eiji Soga | Head-gimbal assembly including piezoelectric elements |
| DE102010041330A1 (en) * | 2010-09-24 | 2012-03-29 | Dr. Johannes Heidenhain Gmbh | Optical position measuring device |
| CN203037374U (en) * | 2012-11-23 | 2013-07-03 | 西安金和光学科技有限公司 | Optical fiber temperature measuring device for cable connector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220086A (en) * | 2019-06-21 | 2019-09-10 | 中山宝益五金塑胶制品有限公司 | A kind of combined type sphere locking mechanism |
| CN110595407A (en) * | 2019-10-08 | 2019-12-20 | 青岛理工大学 | A mechanical micro-displacement output platform |
| CN110595407B (en) * | 2019-10-08 | 2021-01-12 | 青岛理工大学 | A mechanical micro-displacement output platform |
| CN112894651A (en) * | 2021-01-15 | 2021-06-04 | 中国第一汽车股份有限公司 | Multi-angle positioning and clamping device with double spherical structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671471B (en) | 2015-12-09 |
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