CN114755797A - High-rigidity reflector mounting and fixing component for airborne thermal imaging sighting device - Google Patents
High-rigidity reflector mounting and fixing component for airborne thermal imaging sighting device Download PDFInfo
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- CN114755797A CN114755797A CN202111342944.3A CN202111342944A CN114755797A CN 114755797 A CN114755797 A CN 114755797A CN 202111342944 A CN202111342944 A CN 202111342944A CN 114755797 A CN114755797 A CN 114755797A
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- reflector
- pressing plate
- mounting
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- fixing component
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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Abstract
The invention relates to a high-rigidity reflector mounting and fixing component for an airborne thermal image sighting device. The distance among the reflector pressing plate, the reflector and the reflector seat is adjusted by increasing or decreasing the pressing plate adjusting gasket, so that the thickness requirement of the cementing agent is met. And injecting epoxy resin glue into the glue injection hole at the bottom of the reflector base, injecting silicon rubber into the glue injection hole at the side surface of the reflector base, and standing to solidify the glue solution. In the processes of glue injection and glue solution curing, the surface type change of the reflector is monitored, so that the reflector meets the requirement of the reflector surface type. And finally, screwing the reflector clamping ring into the reflector seat, adjusting the screwing amount of the reflector clamping ring, and monitoring the surface shape change of the reflector, so that the reflector clamping ring can play a role in pressing the reflector, and the surface shape of the reflector meets the use requirement.
Description
Technical Field
The invention relates to a high-rigidity reflector mounting and fixing component for an airborne thermal image sighting device.
Background
A thermal image sighting device is a precise optical machine device, and can convert the thermal radiation of a target into an image which can be recognized by human eyes, thereby realizing the functions of target observation, recognition, tracking and the like in a dark environment. The thermal imagery sighting device generally comprises an optical system, a photoelectric conversion device, a structural member for supporting the optical system and the photoelectric conversion device. Considering the limitations of the structural space size and the weight size of airborne equipment, for a common thermal image observing and sighting device of a transmission type optical system, 2 or even more reflectors are generally used for realizing the light path turning, so that the airborne equipment meets the requirement of the airborne space size. The mounting and fixing of the mirror is particularly important in view of the reflection effect on the optical system. Especially, for complex environments of airborne high and low temperature alternation and vibration, the installation and fixation rigidity of the reflector becomes a main factor for restricting the imaging performance of the thermal image observing and sighting device.
In addition, the surface shape of the reflecting mirror is also a main factor influencing the imaging performance of the thermal image viewer. The traditional reflector is installed and fixed on the reflector seat by adopting a gluing mode, and the fixing rigidity of the traditional reflector is limited by the characteristics of a gluing agent. In view of the mirror profile requirements, cements with lower stresses during curing are generally used. The glue joint effect is not easy to control, and although the surface type index of the reflector can be ensured, the fixed rigidity requirement of the reflector is difficult to meet.
Disclosure of Invention
The technical problem solved by the invention is as follows: in order to solve the problems, the technical scheme provided by the invention is as follows: the high-rigidity reflector mounting and fixing component for the airborne thermal imaging sighting device is used for realizing high-rigidity mounting and fixing of the reflector.
The technical scheme of the invention is as follows: a high-rigidity reflector mounting and fixing component for an airborne thermal image sighting device comprises a reflector, a reflector seat, a reflector pressing plate, a pressing plate adjusting gasket and a reflector pressing ring;
glue injection openings are formed in the bottom and the side wall of the reflector seat, and mounting holes matched with the reflector pressing ring are formed in the bottom of the reflector seat;
the reflector is fixed on the reflector seat together through glue joint and a reflector pressing ring;
the reflector pressing plate and the pressing plate adjusting gasket are fixed on the reflector base through fixing screws.
The further technical scheme of the invention is as follows: one side of the reflector base forms a concave inner cavity, the bottom of the inner cavity is provided with a plurality of bulges for supporting the placed reflector, the other side of the reflector base is provided with a glue injection through hole, and the center of the reflector base is also provided with a threaded hole for being in threaded fit with the reflector clamping ring; the glue injection hole and the bulge are in the same position.
The further technical scheme of the invention is as follows: the pressing plate adjusting gasket is positioned between the reflector and the reflector seat, the whole thickness of the pressing plate adjusting gasket is adjusted by adjusting the quantity of the pressing plate adjusting gasket, the distance among the reflector pressing plate, the reflector and the reflector seat is further adjusted, and the thickness requirement of the cementing agent is met.
The further technical scheme of the invention is as follows: the reflector is a reflector with flange characteristics and is made of K9.
The further technical scheme of the invention is as follows: the thickness of the reflector is larger than the depth of the concave inner cavity, and after the reflector is placed in the reflector seat, one surface outside the concave inner cavity is pressed and fixed through the reflector pressing plate.
The further technical scheme of the invention is as follows: the bottom of the reflector seat is filled with epoxy resin glue, and the side of the reflector seat is filled with filling silicon rubber.
The further technical scheme of the invention is as follows: the reflector base and the reflector pressing plate are made of titanium alloy.
The further technical scheme of the invention is as follows: the reflector pressing plate is of a rectangular structure, and 4 countersunk holes for mounting fixing screws are formed in four corners of the reflector pressing plate.
The further technical scheme of the invention is as follows: when the reflector clamping ring is screwed and compacted, the change of the reflector surface type is monitored through the optical interferometer, so that the reflector surface type requirement is met.
The further technical scheme of the invention is as follows: in the processes of glue injection and glue solution curing, the change of the reflector surface type is monitored by an optical interferometer, so that the reflector surface type requirement is met.
Effects of the invention
The invention has the technical effects that:
(1) the high-rigidity reflector mounting and fixing component for the airborne thermal image observing and sighting device is provided, and by reasonably setting the mounting and fixing form of the reflector, the requirement of the surface type of the reflector can be met, and meanwhile, a high-rigidity fixing structure of the reflector is further provided, so that the imaging performance of the thermal image observing and sighting device is improved;
(2) optimally designing the structure of the reflector base and providing a high-rigidity mounting and fixing platform;
(3) the glue injection holes are reasonably designed to meet the glue injection requirement of the reflector;
(4) the pressing amount of the reflector pressing ring to the reflector can be adjusted in a stepless mode through screwing, and the reflector surface type is guaranteed while high-rigidity fixed connection is provided.
Drawings
FIG. 1 is a schematic view of a high rigidity reflector mounting and fixing component for an airborne thermal imaging sighting device
FIG. 2 is a front view of the preferred embodiment of the present invention
FIG. 3 is a first cross-sectional view of the preferred embodiment of the present invention
FIG. 4 is a second cross-sectional view of the preferred embodiment of the invention
FIG. 5 is a schematic view of a reflector base according to the present invention
In the figure: 1-a mirror; 2-a reflector base; 3-reflector pressing plate; 4-pressing plate adjusting shim; 5-pressing plate fixing screws; 6-reflector clamping ring.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-5, a high rigidity reflector mounting and fixing component for an airborne thermal imaging sighting device includes a reflector 1, a reflector base 2, a reflector clamp plate 3, a clamp plate adjusting gasket 4, a clamp plate fixing screw 5, a reflector clamp ring 6, and the like.
The reflector base 2 provides a mounting and fixing platform for the reflector 1. The bottom of the reflector base 2 is provided with 4 coplanar boss features. The boss provides a fixed support point for the reflector 1. The side surface and the bottom surface of the reflector seat 2 comprise glue injection hole characteristics, so that a glue injection position is provided for the adhesive bonding of the reflector 1. The bottom of the reflector base 2 comprises a threaded hole feature which is screwed and smoothly matched with the thread on the reflector pressing ring 6.
The reflector 1 is rectangular and comprises a flange feature. The reflector pressing plate 3 is fixedly arranged on the reflector base through the pressing plate fixing screw 5. The distance among the reflector pressing plate 3, the reflector 1 and the reflector base 2 is adjusted through the pressing plate adjusting gasket 4, so that the thickness requirement of the cementing agent is met.
The reflector pressing ring 6 is fixedly arranged on the reflector base 2 in a screwing mode, and the tail end of the reflector pressing ring is fixed by silicon rubber.
During assembly, the reflector 1 is firstly placed in the reflector base 2, and the reflector pressing plate 3 and the pressing plate adjusting gasket 4 are fixedly installed on the reflector base 2 by using the pressing plate fixing screw 5. The distance between the reflector pressing plate 3, the reflector 1 and the reflector base 2 is adjusted by increasing or decreasing the pressing plate adjusting gasket 4, so that the thickness requirement of the cementing agent is met. And then, injecting epoxy resin glue into the glue injection hole at the bottom of the reflector base 2, injecting silicon rubber into the glue injection hole on the side surface of the reflector base 2, and standing to solidify the glue solution. In the processes of glue injection and glue solution curing, the surface type change of the reflector 1 is monitored, so that the reflector meets the requirement of the reflector surface type. And finally, screwing the reflector clamping ring 6 into the reflector seat 2, adjusting the screwing amount of the reflector clamping ring 6, and monitoring the surface shape change of the reflector 1, so that the reflector clamping ring 6 can play a role in compressing the reflector 1, and the surface shape of the reflector 1 meets the use requirement.
Particularly, the material of the reflector 1 is K9, the material of the reflector base 2 and the material of the reflector pressing plate 3 are titanium alloy, the linear expansion coefficients of the two materials are close, and the change of the surface shape of the mirror surface caused by the change of high and low temperature can be prevented on the premise of meeting the thickness of the glue layer.
The reflector seat provides a mounting and fixing platform for the reflector. The bottom of the reflector base is provided with 4 coplanar boss features. The boss provides a fixed support point for the reflector. The side surface and the bottom surface of the reflector seat comprise glue injection hole characteristics, and a glue injection position is provided for the adhesive bonding of the reflector. The bottom of the reflector seat comprises a threaded hole feature which is screwed and smoothly matched with the thread on the reflector pressing ring.
The reflector is rectangular and includes a flange feature. The reflector pressing plate is fixedly arranged on the reflector base through the pressing plate fixing screw. The distance among the reflector pressing plate, the reflector and the reflector seat is adjusted through the pressing plate adjusting gasket, so that the thickness requirement of the cementing agent is met.
The reflector pressing ring is fixedly arranged on the reflector base in a screwing mode, and the tail end of the reflector pressing ring is fixed by using silicon rubber.
During assembly, the reflector is firstly arranged in the reflector seat, and the reflector pressing plate and the pressing plate adjusting gasket are fixedly arranged on the reflector seat by using the pressing plate fixing screws. The distance among the reflector pressing plate, the reflector and the reflector seat is adjusted by increasing or decreasing the pressing plate adjusting gasket, so that the thickness requirement of the cementing agent is met. And then, injecting epoxy resin glue into the glue injection hole at the bottom of the reflector base, injecting silicon rubber into the glue injection hole on the side surface of the reflector base, and standing to solidify the glue solution. In the processes of glue injection and glue solution curing, the surface type change of the reflector is monitored, so that the reflector meets the requirement of the reflector surface type. And finally, screwing the reflector clamping ring into the reflector seat, adjusting the screwing amount of the reflector clamping ring, and simultaneously monitoring the surface shape change of the reflector, so that the reflector clamping ring can play a role of pressing the reflector, and the surface shape of the reflector meets the use requirement.
Particularly, the material of the reflector is K9, the material of the reflector seat and the reflector pressing plate is titanium alloy, the linear expansion coefficients of the two materials are similar, and the change of the surface shape of the mirror surface caused by the change of high and low temperature can be prevented on the premise of meeting the thickness of the glue layer.
The present invention will now be described in further detail with reference to the accompanying drawings. As shown in fig. 1 to 5, the invention provides a high-rigidity reflector mounting and fixing component for an airborne thermal imaging sighting device, which comprises a reflector 1, a reflector seat 2, a reflector pressing plate 3, a pressing plate adjusting gasket 4, a pressing plate fixing screw 5, a reflector pressing ring 6 and the like.
The reflector base 2 provides a mounting and fixing platform for the reflector 1. The bottom of the reflector base 2 is provided with 4 coplanar boss features. The boss provides a fixed support point for the reflector 1. The side surface and the bottom surface of the reflector seat 2 comprise glue injection hole characteristics, and a glue injection position is provided for the glue joint of the reflector 1. The bottom of the reflector base 2 comprises a threaded hole feature which is screwed and smoothly matched with the thread on the reflector pressing ring 6.
The reflector 1 is rectangular and comprises a flange feature. The reflector pressing plate 3 is fixedly arranged on the reflector base through the pressing plate fixing screw 5. The distance among the reflector pressing plate 3, the reflector 1 and the reflector base 2 is adjusted through the pressing plate adjusting gasket 4, so that the thickness requirement of the cementing agent is met.
The reflector pressing ring 6 is fixedly arranged on the reflector base 2 in a screwing mode, and the tail end of the reflector pressing ring is fixed by silicon rubber.
In a specific embodiment of the present invention, the reflector 1 is first placed in the reflector base 2, and the reflector pressing plate 3 and the pressing plate adjusting shim 4 are fixed on the reflector base 2 by using the pressing plate fixing screws 5. The distance among the reflector pressing plate 3, the reflector 1 and the reflector base 2 is adjusted by increasing or decreasing the pressing plate adjusting gasket 4, so that the thickness requirement of the cementing agent is met. And then, injecting epoxy resin glue into the glue injection hole at the bottom of the reflector base 2, injecting silicon rubber into the glue injection hole on the side surface of the reflector base 2, and standing to solidify the glue solution. In the processes of glue injection and glue solution curing, the surface type change of the reflector 1 is monitored, so that the reflector meets the requirement of the reflector surface type. And finally, screwing the reflector clamping ring 6 into the reflector seat 2, adjusting the screwing amount of the reflector clamping ring 6, and monitoring the change of the surface shape of the reflector 1, so that the reflector clamping ring 6 can play a role in pressing the reflector 1, and the surface shape of the reflector 1 meets the use requirement.
Particularly, the material of the reflector 1 is K9, the material of the reflector base 2 and the material of the reflector pressing plate 3 are titanium alloy, the linear expansion coefficients of the two materials are close, and the change of the surface shape of the mirror surface caused by the change of high and low temperature can be prevented on the premise of meeting the thickness of the glue layer.
The above is a preferred embodiment of the present invention, and various changes and modifications can be made by workers in the field without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A high-rigidity reflector mounting and fixing component for an airborne thermal image sighting device is characterized by comprising a reflector (1), a reflector seat (2), a reflector pressing plate (3), a pressing plate adjusting gasket (4) and a reflector pressing ring (6);
glue injection openings are formed in the bottom and the side wall of the reflector seat (2), and mounting holes matched with the reflector pressing ring (6) are formed in the bottom;
the reflector (1) is fixed on the reflector base (2) together with the reflector pressing ring (6) through adhesive bonding;
the reflector pressing plate (3) and the pressing plate adjusting gasket (4) are fixed on the reflector base (2) through fixing screws.
2. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sighting device according to claim 1 is characterized in that a concave inner cavity is formed on one surface of the reflector base (2), a plurality of bulges are arranged on the bottom of the inner cavity and used for supporting the reflector (1) to be placed, a glue injection through hole is formed in the other surface of the reflector base (2), and a threaded hole is formed in the center and used for being in threaded fit with the reflector clamping ring (6); the glue injection hole and the bulge are in the same position.
3. The high-rigidity reflector mounting and fixing component for the airborne thermal imaging sighting device of claim 1, wherein the pressing plate adjusting gaskets (4) are positioned between the reflector (1) and the reflector base (2) and the whole thickness of the pressing plate adjusting gaskets (4) is adjusted by adjusting the number of the pressing plate adjusting gaskets (4), and the distance among the reflector pressing plate (3), the reflector (1) and the reflector base (2) is further adjusted to meet the requirement of the thickness of a cementing agent.
4. The high rigidity mirror mounting and fixing component for the airborne thermal imaging sight of claim 1, wherein the mirror (1) is a mirror with flange feature and is made of K9.
5. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sight of claim 1, wherein the thickness of the reflector (1) is greater than the depth of the recessed cavity, and after the reflector is placed in the reflector seat (2), the surface outside the recessed cavity is pressed and fixed by the reflector pressing plate (3).
6. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sight of claim 1 is characterized in that epoxy resin glue is injected at the bottom of the reflector seat (2), and silicone rubber is injected at the side of the reflector seat.
7. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sight of claim 1, wherein the reflector holder (2) and the reflector pressing plate (3) are made of titanium alloy.
8. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sighting telescope of claim 1, characterized in that the reflector pressing plate (3) is a rectangular-shaped structure, and 4 countersunk holes for mounting fixing screws are arranged at four corners of the reflector pressing plate.
9. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sighting telescope of claim 1 is characterized in that when the reflector clamping ring (6) is screwed and compressed, the change of the reflector surface type is monitored through an optical interferometer, so that the reflector surface type requirement is met.
10. The mounting and fixing component for the high-rigidity reflector of the airborne thermal imaging sight of claim 1, wherein in the processes of glue injection and glue solution curing, the change of the reflector surface type is monitored by an optical interferometer, so that the reflector surface type requirement is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342944.3A CN114755797A (en) | 2021-11-12 | 2021-11-12 | High-rigidity reflector mounting and fixing component for airborne thermal imaging sighting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342944.3A CN114755797A (en) | 2021-11-12 | 2021-11-12 | High-rigidity reflector mounting and fixing component for airborne thermal imaging sighting device |
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| Publication Number | Publication Date |
|---|---|
| CN114755797A true CN114755797A (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111342944.3A Pending CN114755797A (en) | 2021-11-12 | 2021-11-12 | High-rigidity reflector mounting and fixing component for airborne thermal imaging sighting device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657361A (en) * | 1985-03-14 | 1987-04-14 | United Technologies Corporation | Mirror mounting arrangement |
| CN106569393A (en) * | 2015-10-08 | 2017-04-19 | 上海微电子装备有限公司 | A reflector positioner |
| CN206133098U (en) * | 2016-09-22 | 2017-04-26 | 中国科学院西安光学精密机械研究所 | Support arrangement for secondary reflector among coaxial catoptric system |
| CN112269237A (en) * | 2020-11-12 | 2021-01-26 | 中国航空工业集团公司洛阳电光设备研究所 | Large objective lens centering structure for airborne sighting device |
-
2021
- 2021-11-12 CN CN202111342944.3A patent/CN114755797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657361A (en) * | 1985-03-14 | 1987-04-14 | United Technologies Corporation | Mirror mounting arrangement |
| CN106569393A (en) * | 2015-10-08 | 2017-04-19 | 上海微电子装备有限公司 | A reflector positioner |
| CN206133098U (en) * | 2016-09-22 | 2017-04-26 | 中国科学院西安光学精密机械研究所 | Support arrangement for secondary reflector among coaxial catoptric system |
| CN112269237A (en) * | 2020-11-12 | 2021-01-26 | 中国航空工业集团公司洛阳电光设备研究所 | Large objective lens centering structure for airborne sighting device |
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