CN210567130U - Hinge type optical bench of photoelectric stabilized platform - Google Patents
Hinge type optical bench of photoelectric stabilized platform Download PDFInfo
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- CN210567130U CN210567130U CN201921191050.7U CN201921191050U CN210567130U CN 210567130 U CN210567130 U CN 210567130U CN 201921191050 U CN201921191050 U CN 201921191050U CN 210567130 U CN210567130 U CN 210567130U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 85
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 abstract description 15
- 238000011105 stabilization Methods 0.000 abstract description 15
- 239000006096 absorbing agent Substances 0.000 description 7
- 230000035939 shock Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 206010034719 Personality change Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000011900 installation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model relates to a photoelectric stabilization platform, concretely relates to hinge type optical bench of photoelectric stabilization platform. The utility model aims at solving the problem that the parallel state of the optical load optical axis on the optical bench is easy to be damaged after being impacted in the prior photoelectric stabilized platform, and providing a hinge type optical bench of the photoelectric stabilized platform. The optical bench comprises a base, four support lugs arranged at four corners of the base and used for mounting a pitching frame of the photoelectric stabilization platform, and an optical load mounting part arranged on the end surface of the base; the four support lugs are coplanar with the contact surfaces of the pitching frame mounting part at the same height, and the center of each contact surface is provided with a mounting hole; the four hinge groups are respectively arranged between the base and the four support lugs; each hinge group consists of three hinge arms, and the hinge arms are formed by processing through grooves between the base and the support lugs; the length direction of the hinge arms in each hinge group is perpendicular to the optical axis direction of the optical load mounted on the optical load mounting portion.
Description
Technical Field
The utility model relates to a photoelectric stabilization platform, concretely relates to hinge type optical bench of photoelectric stabilization platform.
Background
The photoelectric stabilized platform is more and more widely applied to airplanes and unmanned vehicles in recent years, and can realize searching, detecting, identifying and tracking of targets. For the airplane and the unmanned vehicle with position guiding requirements, the photoelectric stabilized platform is also required to be capable of guiding the positions of the pointing devices of the airplane and the unmanned vehicle, namely the photoelectric stabilized platform transmits the output azimuth angle and the output pitch angle of the photoelectric stabilized platform to the pointing devices on the airplane and the unmanned vehicle, so that the pointing devices rotate to the central target position of the image on the photoelectric stabilized platform, wherein the accuracy of the azimuth angle and the pitch angle transmitted to the pointing devices by the photoelectric stabilized platform is directly related to whether the pointing devices can accurately point to the target position.
A general photoelectric stabilized platform includes, as shown in fig. 1, a stabilized platform and an optical system, where the stabilized platform is composed of an installation group, a cube group and a pitching group, the optical system is composed of an optical system composed of a visible light camera 0321, a thermal infrared imager 0311, a laser range finder 0331 and an optical bench, and the optical system is installed on a pitching frame of the pitching group. Wherein, the optical bench includes base 01 and the journal stirrup 02 that is located four angles of base 01, and visible light camera 0321, laser range finder 0331 are fixed through adaptor plate and the corresponding installation boss on base 01 respectively (visible light camera 0321, the corresponding installation boss of laser range finder 0331 can not see because the visual angle is selected in fig. 1), and thermal infrared imager 0311 then directly fixes on thermal infrared imager installation boss 031 on base 01. The laser range finder adapter plate 0332 and the visible light camera adapter plate 0322 are fixed with the corresponding mounting bosses respectively through screws, and the directions of the laser range finder 0331 and the visible light camera 0321 are adjusted through gaps between the mounting holes in the laser range finder adapter plate 0332 and the visible light camera adapter plate 0322 and the fixing screws; the pitching of the laser range finder 0331, the visible light camera 0321 and the thermal infrared imager 0311 is adjusted by adding gaskets between the laser range finder adapter plate 0332 and the laser range finder mounting boss, between the visible light camera adapter plate 0322 and the visible light camera mounting boss, and between the thermal infrared imager 0311 and the thermal infrared imager mounting boss 031, and the optical axes of the laser range finder 0331, the visible light camera 0321 and the thermal infrared imager 0311 are parallel by adjusting the orientation and the pitching of three optical loads. In the installation process of the photoelectric stabilization platform, a shock absorber is generally installed between the photoelectric stabilization platform and a carrier (an airplane or an unmanned vehicle), and the shock absorber plays a role of passive vibration isolation and isolates high-frequency disturbances such as impact force transmitted by the carrier; and low-frequency disturbance such as attitude change of the carrier is isolated in a compensation mode through the active vibration isolation action of the photoelectric stabilization platform.
However, when the vibration absorber is installed between the photoelectric stabilization platform and the carrier, the vibration absorber generates large displacement when working, an angle is added to the angle output by the photoelectric stabilization platform, and the angle can change along with the environment where the carrier is installed. At this time, the impact force transmitted from the airplane or the unmanned vehicle directly acts on the optoelectronic stable platform, and under the condition of impact interference, the optical axis parallelism of the optical loads (i.e. the visible light camera 0321, the thermal infrared imager 0311 and the laser range finder 0331) on the optical bench of the optoelectronic stable platform is most easily affected. After multiple impacts, the parallel state of the three is easily destroyed.
Disclosure of Invention
The utility model aims at solving the technical problem that the parallel state of the optical load optical axis on the optical bench is easy to be damaged after being impacted in the prior photoelectric stabilized platform, and providing a hinge type optical bench of the photoelectric stabilized platform.
In order to solve the technical problem, the utility model provides a technical solution as follows:
a hinge type optical bench of a photoelectric stabilized platform comprises a base, four support lugs arranged at four corners of the base and used for mounting a pitching frame of the photoelectric stabilized platform, and an optical load mounting part arranged on the end surface of the base; the four support lugs are coplanar with the contact surfaces of the pitching frame mounting part at the same height, and the center of each contact surface is provided with a mounting hole; it is characterized in that:
the four hinge groups are respectively arranged between the base and the four support lugs;
each hinge group consists of at least three hinge arms, and the hinge arms are formed by processing through grooves between the base and the support lugs;
the length direction of the hinge arms in each hinge group is perpendicular to the optical axis direction a of the optical load mounted on the optical load mounting portion.
Further, the optical load mounting part comprises an infrared thermal imager mounting boss arranged on one side end face of the base, and a visible light camera mounting boss and a laser range finder mounting boss arranged on the other side end face of the base.
Further, the heights of the visible light camera mounting boss and the laser range finder mounting boss are different; the parallelism of the thermal infrared imager mounting boss, the parallelism of the visible light camera mounting boss and the parallelism of the laser range finder mounting boss are not less than 0.03 mm.
Further, the four hinge groups have a first-order natural frequency of 800-1200Hz in the optical axis direction a.
Further, the width of each hinge arm is 0.5-1.4 mm.
Further, the length of each hinge arm is 3-10 mm.
The utility model discloses compare the beneficial effect that prior art has:
1. the utility model provides a hinge type optical bench of photoelectricity stabilized platform is under the prerequisite that does not influence the normal work of photoelectricity stabilized platform, hinge structure has been designed on optical bench, this hinge structure is the hinge group of four connection position departments that are located journal stirrup and base plate, its hinge arm is for through setting up a plurality of logical grooves between base and journal stirrup, form thin wall structure between per two adjacent logical grooves, the hinge arm of this kind of thin wall structure can receive the impact force that comes from the carrier at optical bench, the cushioning effect that plays similar flexible arm is used for the cushioning transfer to the impact force for optical load, every hinge group contains at least three hinge arm in order to guarantee the reliability of hinge. The optical bench can replace a shock absorber to play a passive isolation role by using the hinge structure of the optical bench on the premise of not influencing the normal function of the photoelectric stabilized platform, and can resist the impact force from a carrier.
2. The utility model provides an among four hinge group of photoelectric stabilization platform's hinge type optical bench, the length direction of hinge arm is perpendicular with optical load optical axis direction (the impact direction promptly) among the hinge group, and four hinge group have 800-1200 Hz's first-order natural frequency in this direction, can cushion the impact force of carrier transmission.
3. The utility model provides a hinge type optical bench of photoelectric stabilization platform when photoelectric stabilization platform bears impact load, under the condition that does not have the shock absorber to exist, this kind of optical bench can cushion through the hinge structure above that, protects the optical load of installing above that to maintain the constant relation that the optical axis is parallel to each other between its optical load, guarantee photoelectric stabilization platform's measurement target angular position precision.
4. The utility model provides a hinge type optical bench of photoelectric stabilization platform, the size of its hinge group is far less than the size of general shock absorber, is convenient for install and use.
Drawings
FIG. 1 is a schematic diagram of an optical bench of a conventional electrical stabilized platform after installation of an optical load, wherein the optical bench includes a base and a supporting lug, and the optical load includes a visible light camera, a thermal infrared imager, and a laser rangefinder;
fig. 2 is a top view of the hinge-type optical bench of the photoelectric stabilized platform of the present invention;
fig. 3 is a bottom view of the hinge-type optical bench of the photoelectric stabilized platform of the present invention;
fig. 4 is a schematic diagram of the hinge-type optical bench of the photoelectric stabilized platform after optical loads are installed;
FIG. 5 is an exploded view of FIG. 4;
fig. 6 is a schematic structural view of a pitching frame mounted at four corners of a base of a hinge-type optical bench of the electrically stabilized platform of the present invention, the pitching frame is provided with four mounting lugs corresponding to the four support lugs, and the four mounting lugs are coplanar;
fig. 7 is an assembly view of the pitching frame of fig. 6 and the hinged optical bench of the photoelectric stabilized platform of the present invention;
description of reference numerals:
in fig. 1:
01-a base; 02-support lug;
031-installing a boss on the thermal infrared imager; 0311-thermal infrared imager;
0321-visible light camera; 0322-visible light camera adapter plate;
0331-a laser rangefinder; 0332-a laser rangefinder adapter plate;
in fig. 2 to 7:
1-a base; 2-support of the ear; 21-mounting holes;
31-mounting a boss on the thermal infrared imager; 311-infrared thermal imaging system;
32-visible light camera mounting boss; 321-a visible light camera; 322-visible light camera adapter plate;
33-mounting a boss on the laser range finder; 331-laser rangefinder; 332-laser rangefinder adapter plate;
41-hinge arm; 42-through groove;
5-a pitching frame;
a-the direction of the optical axis.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 2 to 7, the hinge type optical bench of the present invention includes a base 1, four support lugs 2 disposed at four corners of the base 1 for mounting a pitching frame 5 of a photoelectric stabilized platform, and an optical load mounting portion 3 disposed at an end surface of the base 1, wherein four mounting lugs 51 corresponding to the four support lugs 2 are disposed on the pitching frame 5, and the four mounting lugs 51 are coplanar; the optical load mounting part comprises a thermal infrared imager mounting boss 31 arranged on one side end face of the base 1, and a visible light camera mounting boss 32 and a laser range finder mounting boss 33 arranged on the other side end face of the base 1; the heights of the visible light camera mounting boss 32 and the laser range finder mounting boss 33 are different; the parallelism of the thermal infrared imager mounting boss 31, the visible light camera mounting boss 32 and the laser range finder mounting boss 33 is not less than 0.03mm, so that the debugging among optical loads can be facilitated; the thermal infrared imager mounting boss 31 is directly connected with the thermal infrared imager 311; the visible light camera mounting boss 32 is connected with the visible light camera 321 through a visible light camera adapter plate 322; the laser range finder mounting boss 33 is connected to the laser range finder 331 through the laser range finder adapter plate 332. The four contact surfaces of the mounting parts of the support lugs 2 and the pitching frame 5 are flush with each other in height, and a mounting hole 21 is formed in the center of each contact surface to fix the optical bench and the pitching frame 5, wherein the size of the mounting hole 21 is not limited to this, and the mounting holes can be reasonably designed according to the weight of the mounting part on the optical bench.
The optical train further comprises four hinge groups respectively arranged between said base 1 and four lugs 2, each hinge group comprising at least three hinge arms 41, preferably three; the hinge arms 41 are flexible thin-wall structures formed between every two adjacent through grooves 42 by arranging a plurality of mutually parallel and discontinuously combined through grooves 42 between the base 1 and the support lug 2, the thin-wall structures can play a role of buffering similar to flexible arms to resist impact force when the optical bench is subjected to the impact force from a carrier, and each hinge group comprises three hinge arms 41 to ensure that the hinge structures have higher reliability; the length of each hinge arm 41 is not less than 3mm, 3-10mm, and the width is 0.5-1.4 mm. The length direction of the hinge arms 41 in each hinge group is perpendicular to the optical axis direction a of the optical load mounted on the optical load mounting portion, and the four hinge groups have a first-order natural frequency of 800 to 1200Hz, preferably 800Hz, in the optical axis direction a.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to equally replace some technical features of the embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.
Claims (6)
1. A hinge type optical bench of a photoelectric stabilized platform comprises a base (1), four support lugs (2) arranged at four corners of the base (1) and used for mounting a pitching frame (5) of the photoelectric stabilized platform, and an optical load mounting part arranged on the end surface of the base (1); the contact surfaces of the four support lugs (2) and the installation part of the pitching frame (5) are equal in height and coplanar, and the center of each contact surface is provided with an installation hole (21); the method is characterized in that:
the four-hinge-group hinge comprises a base (1) and four support lugs (2);
each hinge group consists of at least three hinge arms (41), and the hinge arms (41) are formed by processing through grooves (42) between the base (1) and the support lugs (2);
the length direction of the hinge arm (41) in each hinge group is perpendicular to the optical axis direction a of the optical load mounted on the optical load mounting portion.
2. The hinged optical bench of claim 1, wherein: the optical load mounting part comprises a thermal infrared imager mounting boss (31) arranged on one side end face of the base (1), and a visible light camera mounting boss (32) and a laser range finder mounting boss (33) arranged on the other side end face of the base (1).
3. The hinged optical bench of claim 2 wherein: the heights of the visible light camera mounting boss (32) and the laser range finder mounting boss (33) are different; the parallelism of the thermal infrared imager mounting boss (31), the visible light camera mounting boss (32) and the laser range finder mounting boss (33) is not less than 0.03 mm.
4. The hinged optical bench of any one of claims 1-3 wherein: the four hinge groups have a first order natural frequency of 800-1200Hz in the optical axis direction a.
5. The hinged optical bench of claim 4 wherein: the width of each hinge arm (41) is 0.5-1.4 mm.
6. The hinged optical bench of claim 5 wherein: the length of each hinge arm (41) is 3-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191050.7U CN210567130U (en) | 2019-07-26 | 2019-07-26 | Hinge type optical bench of photoelectric stabilized platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191050.7U CN210567130U (en) | 2019-07-26 | 2019-07-26 | Hinge type optical bench of photoelectric stabilized platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210567130U true CN210567130U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921191050.7U Active CN210567130U (en) | 2019-07-26 | 2019-07-26 | Hinge type optical bench of photoelectric stabilized platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210567130U (en) |
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2019
- 2019-07-26 CN CN201921191050.7U patent/CN210567130U/en active Active
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Address after: 710077 8th floor, block a, no.1309, Shanglinyuan 4th Road, high tech Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an zhongkelide Infrared Technology Co.,Ltd. Address before: 710077 8th floor, block a, no.1309, Shanglinyuan 4th Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN TELLHOW INFRARED TECHNOLOGY Co.,Ltd. |