CN204254182U - A kind of micro-angular adjustment platform of flexible hinge detected for precision optics - Google Patents
A kind of micro-angular adjustment platform of flexible hinge detected for precision optics Download PDFInfo
- Publication number
- CN204254182U CN204254182U CN201420610710.1U CN201420610710U CN204254182U CN 204254182 U CN204254182 U CN 204254182U CN 201420610710 U CN201420610710 U CN 201420610710U CN 204254182 U CN204254182 U CN 204254182U
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- flexible hinge
- circular arc
- micro
- arc type
- adjustment platform
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Abstract
The utility model discloses a kind of micro-angular adjustment platform of flexible hinge detected for precision optics, this adjustment platform adopts multiple identical circular arc type flexible hinge bar, even circumferential distributes, connect upper table surface and base, and with upper table surface and base angled, the flexural rigidity of circular arc type flexible hinge is more weak than axial rigidity, can ensure table-surface level and realize micro-angular turn.The micro-angular adjustment platform of flexible hinge of the present utility model, lower end is fixed, and adopts certain driving mode, and upper end table top can be made to rotate small angle.During working table movement, only at flexible hinge place, resiliently deformable occurs, other parts think rigid body, as long as appropriate design flexible hinge structure and geometric parameter, determine flexural rigidity and the axial rigidity of circular arc type flexible hinge, just can ensure kinematic accuracy and the stability of worktable.
Description
Technical field
The utility model relates to a kind of micropositioner, more particularly, refers to a kind of optical detecting platform that can realize micro-angular adjustment.
Background technique
For optical element, particularly reflector, diffraction grating etc., when carrying out Precision measurement, need to rotate minute angle.Tradition mechanical structure adopts hydraulic pressure support or pneumatic structure, even realizes with piezoelectric constant or magnetostrictive device, complex structure, regulates trouble.Employing flexible hinge structure is simple, and compare traditional rigid hinge, its tool in cost and performance two has great advantage: flexible hinge volume is little, mechanical friction, gapless.Flexure hinge mechanism make use of elastic material micro-strain and from the characteristic of replying, eliminates the idle running in transmission process and mechanical friction, can obtain the displacement resolution of superelevation.Flexible hinge is widely used in the instrument and apparatus such as gyroscope, accelerometer, precision balance, STT missile, and obtains unprecedented highi degree of accuracy and stability.
Model utility content
The purpose of this utility model is to overcome prior art Problems existing, provides a kind of micro-angular adjustment platform of flexible hinge detected for precision optics.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of micro-angular adjustment platform of flexible hinge detected for precision optics, comprise upper table surface and base, described upper table surface connects driving mechanism, described base is fixed, also include the circular arc type flexible hinge bar of multiple affixed described upper table surface and base, the flexural rigidity of described circular arc type flexible hinge is more weak than axial rigidity.
Further, described circular arc type flexible hinge bar and upper table surface angled.
Further, described circular arc type flexible hinge bar and base angled.
Further, described circular arc type flexible hinge bar distributes along the even circumferential of upper table surface and base.
Further, described circular arc type flexible hinge bar forms by two identical circular arc type flexible hinges are affixed, and the two ends of described circular arc type flexible hinge are rectangle, middle two sides are inwardly concave circular arc, and its major parameter is hinge width d, minimum thickness t, radius of arc R and circular arc half-angle θ.
The beneficial effects of the utility model are:
Circular arc type flexible hinge slewing area is little, the high requirement meeting micro-angular adjustment platform of precision, adopt flexible hinge, decrease kinematic pair, assembly error reduces, and precision and the reliability of mechanism improve, and decrease maintenance, multiple driving mode can be adopted, be combined into micro-angular adjustment platform with utility function.
Accompanying drawing explanation
Fig. 1 is that positive two of the utility model flexible hinge micro-angular adjustment platform surveys view;
Fig. 2 is the plan view of the micro-angular adjustment platform of the utility model flexible hinge;
Fig. 3 is the plan view of the micro-angular adjustment platform of the utility model flexible hinge;
Fig. 4 is that view surveyed by the circular arc type flexible hinge bar positive two that the utility model adopts;
Fig. 5 is the circular arc type flexible hinge structure schematic diagram that the utility model adopts.
Number in the figure illustrates: 1, circular arc type flexible hinge bar, 11, circular arc type flexible hinge, 2, upper table surface, 3, base.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in 3, a kind of micro-angular adjustment platform of flexible hinge detected for precision optics, comprise upper table surface 2 and base 3, described upper table surface 2 connects driving mechanism, described base 3 is fixed, also include the circular arc type flexible hinge bar 1 of multiple affixed described upper table surface 2 and base 3, the flexural rigidity of described circular arc type flexible hinge 1 is more weak than axial rigidity.
Be illustrated in figure 4 the circular arc type flexible hinge bar 1 that two circular arc type flexible hinges 11 form, as shown in Figure 5, the major parameter of the circular arc type flexible hinge 11 that the utility model adopts has hinge width d, minimum thickness t, cutting arc shape work piece radius R and circular arc half-angle θ.
Circular arc type flexible hinge 11 flexural rigidity and axial rigidity and minimum thickness d are that secondary increases progressively relation, and minimum thickness is larger, and flexural rigidity is larger, and along with the increase of d, and the flexural rigidity amplification model utility that heals shows; Flexural rigidity and axial rigidity and the curved relation of successively decreasing of cutting arc shape work piece radius R, cutting arc shape work piece radius is larger, and flexural rigidity is less, but amplitude is less; Flexural rigidity and axial rigidity and center of circle half-angle θ taper off relation, and when center of circle half-angle exceedes several angle, flexural rigidity tends towards stability gradually.
The flexural rigidity of circular arc type flexible hinge bar 1 has similar Changing Pattern with axial rigidity, but according to the job requirement of circular arc type flexible hinge bar 1, flexural rigidity is more little more favourable, axial rigidity is more large more favourable, therefore, when specifically carrying out the manufacturing and designing of the utility model flexible hinge, the impact of flexural rigidity and axial rigidity should be considered, seek optimum flexible hinge structure parameter, restoring force when ensureing hinge maximum distortion is less than the maximum driving force of driveshaft, maximum stress during hinge maximum distortion is less than its allowable stress, micropositioner is made to have higher natural frequency to guarantee that worktable has good dynamic characteristic.
The course of action of the present embodiment is as follows:
During operation, table base 3 is fixed on Laboratory Furniture, and when upper table surface 2 applies a torque, upper table surface 2 rotates a minute angle; After torque removes, worktable recovers original state.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the micro-angular adjustment platform of flexible hinge detected for precision optics, comprise upper table surface (2) and base (3), it is characterized in that, described upper table surface (2) connects driving mechanism, described base (3) is fixed, also include the circular arc type flexible hinge bar (1) of multiple affixed described upper table surface (2) and base (3), the flexural rigidity of described circular arc type flexible hinge (1) is more weak than axial rigidity.
2. the micro-angular adjustment platform of flexible hinge detected for precision optics according to claim 1, is characterized in that, described circular arc type flexible hinge bar (1) is angled with upper table surface (2).
3. the micro-angular adjustment platform of flexible hinge detected for precision optics according to claim 2, is characterized in that, described circular arc type flexible hinge bar (1) is angled with base (3).
4. the micro-angular adjustment platform of flexible hinge detected for precision optics according to claim 1, is characterized in that, described circular arc type flexible hinge bar (1) distributes along the even circumferential of upper table surface (2) and base (3).
5. the micro-angular adjustment platform of flexible hinge detected for precision optics according to the arbitrary claim in Claims 1-4, it is characterized in that, described circular arc type flexible hinge bar (1) forms by two identical circular arc type flexible hinges (11) are affixed, the two ends of described circular arc type flexible hinge (11) are rectangle, middle two sides are inwardly concave circular arc, and its major parameter is hinge width d, minimum thickness t, radius of arc R and circular arc half-angle θ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610710.1U CN204254182U (en) | 2014-10-22 | 2014-10-22 | A kind of micro-angular adjustment platform of flexible hinge detected for precision optics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610710.1U CN204254182U (en) | 2014-10-22 | 2014-10-22 | A kind of micro-angular adjustment platform of flexible hinge detected for precision optics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254182U true CN204254182U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420610710.1U Expired - Fee Related CN204254182U (en) | 2014-10-22 | 2014-10-22 | A kind of micro-angular adjustment platform of flexible hinge detected for precision optics |
Country Status (1)
| Country | Link |
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| CN (1) | CN204254182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358976A (en) * | 2014-10-22 | 2015-02-18 | 中国科学院苏州生物医学工程技术研究所 | Flexible hinge micro-angle adjustment table for precise optical detection |
| CN105953039A (en) * | 2016-07-14 | 2016-09-21 | 佛山科学技术学院 | Novel large-stroke compliant parallel micro positioning platform |
-
2014
- 2014-10-22 CN CN201420610710.1U patent/CN204254182U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358976A (en) * | 2014-10-22 | 2015-02-18 | 中国科学院苏州生物医学工程技术研究所 | Flexible hinge micro-angle adjustment table for precise optical detection |
| CN105953039A (en) * | 2016-07-14 | 2016-09-21 | 佛山科学技术学院 | Novel large-stroke compliant parallel micro positioning platform |
| CN105953039B (en) * | 2016-07-14 | 2018-08-24 | 佛山科学技术学院 | A kind of submissive mini positioning platform in parallel of Novel long-stroke |
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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: 20150408 Termination date: 20201022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |