Mounting structure of collimator primary mirror and collimator primary mirror assembly

Abstract

The utility model relates to a mounting structure of a collimator primary mirror and a collimator primary mirror assembly, and the mounting structure comprises a bottom plate which is used for being connected with a collimator primary mirror to be mounted; the heat dissipation part is connected with the bottom plate and comprises an opening, a mounting plate is arranged in the opening and used for being connected with a collimator primary mirror to be mounted, the opposite side of the mounting plate is connected with the side wall of the opening through an elastic part, and a gap exists between the mounting plate and the side wall of the opening. And a gap is formed between the mounting plate and the bottom plate. The mounting structure of the collimator primary mirror and the collimator primary mirror assembly provided by the utility model can enable the collimator to keep better use precision in a large temperature range.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instrument installation structures, in particular to an installation structure of a collimator primary mirror and a collimator primary mirror assembly. Background Art

[0002] The off-axis two-mirror collimator is a commonly used optical instrument, mainly composed of a primary mirror, a secondary mirror and a folding mirror, wherein the primary mirror is fixed on the bottom plate by bolts. During use, if there are high temperature or low temperature conditions, due to the different materials used for the connection bracket of the primary mirror and the bottom plate, the deformation dimensions of the materials of the connection bracket and the bottom plate are different, which may cause the connection bracket or the bottom plate to bend, thereby reducing the use accuracy of the collimator. Content of the Utility Model

[0003] For this reason, the technical problem to be solved by the utility model is to provide an installation structure of a collimator primary mirror and a collimator primary mirror assembly, which can enable the collimator to maintain good use accuracy within a large temperature range.

[0004] To solve the above technical problem, the utility model provides an installation structure of a collimator primary mirror, including: a bottom plate for connecting with the collimator primary mirror to be installed; a thermal eliminator connected to the bottom plate, the thermal eliminator includes an opening, an installation plate is arranged in the opening, the installation plate is used for connecting with the collimator primary mirror to be installed, the opposite side of the installation plate is connected with the side wall of the opening through an elastic member, there is a gap between the installation plate and the side wall of the opening, and there is a gap between the installation plate and the bottom plate.

[0005] In an embodiment of the utility model, the elastic member includes a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate and the third connecting plate are respectively connected to both ends of the second connecting plate, the first connecting plate is connected to the side wall of the opening, and the third connecting plate is connected to the installation plate.

[0006] In an embodiment of the utility model, the third connecting plate is connected to the edge of one side of the installation plate, and the two elastic members connected to the opposite side of the installation plate are centrosymmetric with the center of the installation plate as the center of symmetry.

[0007] In an embodiment of the utility model, the plane where the second connecting plate is located is perpendicular to the plane where the first connecting plate is located, and the plane where the second connecting plate is located is perpendicular to the plane where the third connecting plate is located.

[0008] In an embodiment of the utility model, the bottom plate is provided with a first installation hole for connecting with the collimator primary mirror to be installed, and the elastic member is located between the installation plate and the first installation hole.

[0009] In one embodiment of the present utility model, the bottom plate includes a first mounting surface for connecting with the main mirror of the collimator to be installed, the mounting plate includes a second mounting surface for connecting with the main mirror of the collimator to be installed, and the first mounting surface and the second mounting surface are coplanar.

[0010] In one embodiment of the present utility model, the bottom plate is provided with a mounting groove, a clamping block is arranged in the mounting groove, the heat dissipation member is provided with a clamping groove, and the clamping block is clamped with the clamping groove.

[0011] In one embodiment of the present utility model, a rolling member is connected to the side of the mounting plate close to the bottom plate, and the rolling member abuts against the bottom plate.

[0012] In one embodiment of the present utility model, the elastic member is a spring, and elastic members are connected between the four side walls of the mounting plate perpendicular to the plane of the bottom plate and the side walls of the opening.

[0013] The present utility model also provides a collimator main mirror assembly, including the mounting structure of the above-mentioned collimator main mirror.

[0014] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0015] For the mounting structure of a collimator main mirror and the collimator main mirror assembly of the present utility model, in the case of high temperature or low temperature, through the cooperation of the mounting plate and the elastic member, the mounting plate can move towards the elastic member on one side, so that the elastic member is compressed, thereby compensating for the deformation size difference caused by different materials of the connection bracket between the bottom plate and the main mirror, preventing the connection bracket of the bottom plate or the main mirror from bending and deforming, and improving the use precision of the collimator main mirror. By having a gap between the mounting plate and the side wall of the opening, and a gap between the mounting plate and the bottom plate, friction between the mounting plate and the side wall of the opening and the bottom plate is prevented, so that most of the thermal stress can be released by the mounting plate in the case of high temperature or low temperature, and the position and attitude precision of the main mirror can be maintained. Description of the Drawings

[0016] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in combination with the drawings, where

[0017] Figure 1 is a schematic assembly structure diagram of the mounting structure of a collimator main mirror of the present utility model and the main mirror;

[0018] Figure 2 is a schematic top structure diagram of the heat dissipation member;

[0019] Figure 3 is a schematic bottom structure diagram of the heat dissipation member;

[0020] Figure 4 It is a schematic structural diagram of the bottom plate.

[0021] Explanation of the reference numerals in the specification drawings: 1. Heat dissipation member; 2. Bottom plate; 3. Connection bracket; 4. Lens; 11. Opening; 12. Mounting plate; 13. First connection plate; 14. Second connection plate; 15. Third connection plate; 16. Second mounting hole; 17. Card slot; 21. Mounting groove; 22. Card block; 23. First mounting hole. Specific embodiments

[0022] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0023] Embodiment 1

[0024] Referring to Figures 1 to 3 As shown, an installation structure of a collimator main mirror of the present utility model includes: a bottom plate 2, and the bottom plate 2 is used for connecting with the collimator main mirror to be installed; a heat dissipation member 1, and the heat dissipation member 1 is connected to the bottom plate 2. The heat dissipation member 1 includes an opening 11, and a mounting plate 12 is arranged in the opening 11. The mounting plate 12 is used for connecting with the collimator main mirror to be installed. The opposite sides of the mounting plate 12 are connected to the side walls of the opening 11 through elastic members. There is a gap between the mounting plate 12 and the side walls of the opening 11, and there is a gap between the mounting plate 12 and the bottom plate 2.

[0025] In the installation structure of the collimator main mirror of this embodiment, the opposite sides of the mounting plate 12 are connected to the side walls of the opening 11 through elastic members. When high temperature or low temperature occurs, the mounting plate 12 can move towards the elastic member on one side, so that the elastic member is compressed. Furthermore, it compensates for the deformation size difference caused by different materials between the bottom plate 2 and the connection bracket 3 of the main mirror, prevents the bottom plate 2 or the connection bracket 3 of the main mirror from bending and deforming, enables the collimator to maintain good use accuracy within a large temperature range, and expands the use temperature range of the collimator. By having a gap between the mounting plate 12 and the side walls of the opening 11, and a gap between the mounting plate 12 and the bottom plate 2, it prevents friction between the mounting plate 12 and the side walls of the opening 11 and the bottom plate 2, and further makes the displacement accuracy of the mounting plate 12 higher under high temperature or low temperature conditions.

[0026] Referring to Figure 4As shown, the bottom plate 2 is integrally flat. The top side of the bottom plate 2 is a first mounting surface for connecting with the main mirror of the collimator to be installed. There are two first mounting holes 23 on the first mounting surface, and the first mounting holes 23 are used to connect with the main mirror of the collimator to be installed. There is also a mounting groove 21 on the first mounting surface of the bottom plate 2, and there are two clamping blocks 22 on the edge of the mounting groove 21.

[0027] Referring Figure 2 and Figure 3 As shown, the heat dissipation member 1 is connected to the bottom plate 2. Specifically, the heat dissipation member 1 is located in the mounting groove 21 of the bottom plate 2. There is a clamping groove 17 at the bottom of the heat dissipation member 1 that cooperates with the clamping block 22. The clamping block 22 is clamped with the clamping groove 17, and the cooperation between the clamping block 22 and the clamping groove 17 makes the connection between the heat dissipation member 1 and the bottom plate 2 more stable. There are connection holes on both the clamping block 22 and the heat dissipation member 1, and the positions of the clamping block 22 and the heat dissipation member 1 are fixed by connecting bolts to the connection holes. Preferably, the top side of the heat dissipation member 1 is coplanar with the first mounting surface, that is, the heat dissipation member 1 does not protrude from the top side of the bottom plate 2, so as to prevent the main mirror of the collimator from tilting during installation.

[0028] The heat dissipation member 1 includes an opening 11. The opening 11 is located in the middle of the heat dissipation member 1 and penetrates through the heat dissipation member 1. There is a mounting plate 12 in the opening 11. The mounting plate 12 is used to connect with the main mirror of the collimator to be installed. The mounting plate 12 includes a second mounting surface for connecting with the main mirror of the collimator to be installed. The second mounting surface is coplanar with the first mounting surface, so as to prevent the main mirror of the collimator from tilting during installation. There are two second mounting holes 16 on the second mounting surface, and the second mounting holes 16 are used to connect with the main mirror of the collimator to be installed.

[0029] The opposite sides of the mounting plate 12 are connected to the side walls of the opening 11 through elastic members, and there is a gap between the mounting plate 12 and the side walls of the opening 11, and there is also a gap between the mounting plate 12 and the bottom plate 2, so as to prevent friction between the mounting plate 12 and the side walls of the opening 11 and the bottom plate 2. The mounting plate 12 is integrally in the shape of a rectangular flat plate, the opening 11 is rectangular and matches the mounting plate 12, and the four side walls of the mounting plate 12 perpendicular to the bottom plate 2 are respectively parallel to the corresponding side walls of the opening 11. The elastic member includes a first connecting plate 13, a second connecting plate 14 and a third connecting plate 15. The first connecting plate 13, the second connecting plate 14 and the third connecting plate 15 are all in the shape of flat plates with a small thickness. The first connecting plate 13 and the third connecting plate 15 are respectively connected to both ends of the second connecting plate 14. The first connecting plate 13 is connected to the side wall of the opening 11, and the third connecting plate 15 is connected to the mounting plate 12, so that the first connecting plate 13, the second connecting plate 14 and the third connecting plate 15 are integrally connected in a Z shape, and further enables the elastic member to be compressed or extended slightly. The third connecting plate 15 is connected to the edge of one side of the mounting plate 12, and the two elastic members connected to the opposite side of the mounting plate 12 are centrosymmetrically arranged with the center of the mounting plate 12 as the center of symmetry, so that the two third connecting plates 15 are respectively connected to the edges with the largest distance between the opposite sides of the mounting plate 12, and further enables the resistance received by the mounting plate 12 during the movement process to be smaller.

[0030] The plane where the second connecting plate 14 is located is perpendicular to the plane where the first connecting plate 13 is located, and the plane where the second connecting plate 14 is located is perpendicular to the plane where the third connecting plate 15 is located, so that the plane where the first connecting plate 13 is located is parallel to the plane where the third connecting plate 15 is located. The first connecting plate 13 is perpendicular to the side wall of the opening 11 to which the first connecting plate 13 is connected, and the third connecting plate 15 is perpendicular to the side wall of the mounting plate 12 to which the third connecting plate 15 is connected. The connection position between the first connecting plate 13 and the second connecting plate 14 is arc-shaped, and at the same time, the connection position between the third connecting plate 15 and the second connecting plate 14 is also arc-shaped, so as to prevent the connection positions between the second connecting plate 14 and the first connecting plate 13 and the third connecting plate 15 from cracking during the process of the elastic member being compressed or extended under force. In another embodiment, the angles between the first connecting plate 13 and the second connecting plate 14 and between the third connecting plate 15 and the second connecting plate 14 are both acute angles, so that the resistance received by the mounting plate 12 during the movement process is smaller.

[0031] Preferably, the elastic member is located between the mounting plate 12 and the first mounting hole 23, that is, the elastic member is arranged along the connection line between the first mounting hole 23 and the second mounting hole 16. At the same time, the first connecting plate 13 and the third connecting plate 15 have the same size, and the size between the first connecting plate 13 and the third connecting plate 15 is greater than the size between the second connecting plate 14 and the side wall of the opening 11, that is, the longest side dimension of the second connecting plate 14 is greater than the longest side dimension of the first connecting plate 13. Due to the large distance between the first mounting hole 23 and the second mounting hole 16, when in a high-temperature or low-temperature environment, the connecting bracket 3 of the main mirror and the bottom plate 2 have the largest dimensional change along the connection line direction between the first mounting hole 23 and the second mounting hole 16. The arrangement of the elastic member between the mounting plate 12 and the first mounting hole 23 makes the maximum distance movement direction of the mounting plate 12 correspond to the compression direction of the elastic member. At the same time, through the arrangement of the 3 connecting plates of the elastic member, the mounting plate 12 can also move in the direction perpendicular to the connection line between the first mounting hole 23 and the second mounting hole 16.

[0032] In another embodiment, rolling members are connected to the side of the mounting plate 12 close to the bottom plate 2 in a rolling manner. The rolling members can be regarded as ball bearings, and multiple rolling members can be provided. The rolling members abut against the bottom plate 2, so that the rolling members can support the mounting plate 12. At the same time, during the movement of the mounting plate 12, the rolling members roll at the bottom of the mounting groove 21 of the bottom plate 2, preventing the support plate from being subjected to a large frictional force during the movement.

[0033] In another embodiment, the elastic member is regarded as a spring. Elastic members are connected between the four side walls of the mounting plate 12 perpendicular to the plane of the bottom plate 2 and the side walls of the opening 11, that is, among the four side walls of the mounting plate 12 perpendicular to the bottom plate 2, elastic members are connected between each side wall and the corresponding side wall of the opening 11. The two ends of the elastic member are respectively connected to the mounting plate 12 and the side wall of the opening 11, so that the resistance received by the mounting plate 12 when moving in different directions is the same.

[0034] Embodiment 2

[0035] The present invention also provides a collimator main mirror assembly, including the mounting structure of the collimator main mirror in Embodiment 1. The collimator main mirror assembly further includes a main mirror, and the main mirror includes a lens 4 and a connecting bracket 3, wherein the lens 4 is connected to the connecting bracket 3 in a matching manner.

[0036] During use, the heat dissipation member 1 is placed in the mounting groove 21 so that the clamping block 22 is clamped with the clamping groove 17, and then the heat dissipation member 1 is connected to the clamping block 22. One end of the connecting bracket 3 is connected to the first mounting hole 23 on the bottom plate 2, and the other end of the connecting bracket 3 is connected to the second mounting hole 16 on the mounting plate 12.

[0037] An installation structure of a collimator main mirror and a collimator main mirror assembly of the present utility model. When high temperature or low temperature occurs, through the cooperation of the mounting plate 12 and the elastic member, the mounting plate 12 can move towards the elastic member on one side, thereby compressing the elastic member, and further compensating for the deformation size difference caused by different materials of the bottom plate 2 and the connection bracket 3 of the main mirror, preventing the bottom plate 2 or the connection bracket 3 of the main mirror from bending and deforming, enabling the collimator to maintain good use accuracy within a large temperature range, and expanding the use temperature range of the collimator. By having a gap between the mounting plate 12 and the side wall of the opening 11, and a gap between the mounting plate 12 and the bottom plate 2, it is possible to prevent friction between the mounting plate 12 and the side wall of the opening 11 and the bottom plate 2, and further make the displacement accuracy of the mounting plate 12 higher under high temperature or low temperature conditions.

[0038] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A mounting structure for a primary mirror of a collimator, characterized in that: include: A bottom plate, the bottom plate is used to connect with the primary mirror of the collimator to be installed; A heat dissipation component is connected to the bottom plate, the heat dissipation component includes an opening, a mounting plate is provided in the opening, the mounting plate is used to connect with the collimator primary mirror to be installed, the opposite side of the mounting plate is connected to the side wall of the opening through an elastic member, there is a gap between the mounting plate and the side wall of the opening, and there is a gap between the mounting plate and the bottom plate.

2. The mounting structure of the collimator primary mirror according to claim 1, characterized in that: The elastic member includes a first connecting plate, a second connecting plate and a third connecting plate, wherein the first connecting plate and the third connecting plate are respectively connected to two ends of the second connecting plate, the first connecting plate is connected to the side wall of the opening, and the third connecting plate is connected to the mounting plate.

3. The mounting structure of the collimator primary mirror according to claim 2, characterized in that: The third connecting plate is connected to the edge of one side of the mounting plate, and the two elastic members connected to the opposite side of the mounting plate are centrally symmetrical with the center of the mounting plate as the symmetry center.

4. The mounting structure of the collimator primary mirror according to claim 2, characterized in that: The plane where the second connecting plate is located is perpendicular to the plane where the first connecting plate is located, and the plane where the second connecting plate is located is perpendicular to the plane where the third connecting plate is located.

5. The installation structure of the collimator primary mirror according to claim 1, characterized in that: The bottom plate is provided with a first mounting hole, and the first mounting hole is used to connect with the primary mirror of the collimator to be installed, and the elastic member is located between the mounting plate and the first mounting hole.

6. The mounting structure of the collimator primary mirror according to claim 1, characterized in that: The base plate includes a first mounting surface for connecting to a collimator primary mirror to be installed, and the mounting plate includes a second mounting surface for connecting to a collimator primary mirror to be installed, and the first mounting surface is coplanar with the second mounting surface.

7. The mounting structure of the collimator primary mirror according to claim 1, characterized in that: The bottom plate is provided with a mounting groove, a clamping block is provided in the mounting groove, the heat dissipation component is provided with a clamping groove, and the clamping block is clamped with the clamping groove.

8. The mounting structure of the collimator primary mirror according to claim 1, characterized in that: A rolling member is connected to one side of the mounting plate close to the bottom plate, and the rolling member abuts against the bottom plate.

9. The installation structure of the collimator primary mirror according to claim 1, characterized in that: The elastic member is a spring, and elastic members are connected between the four side walls of the mounting plate and the plane where the bottom plate is located and the side walls of the opening.

10. A collimator primary mirror assembly, characterized in that: The invention comprises the installation structure of the primary mirror of the collimator tube as described in any one of claims 1 to 9.

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