Primary mirror cone sleeve bonding positioning device and method

Abstract

The present invention provides a primary mirror cone sleeve bonding and positioning device and method, which relate to the field of optical technology. The device comprises a primary mirror positioning device, a positioning plate, a grinding device and a bonding device. The primary mirror is positioned and fixed by the primary mirror positioning device and the positioning plate. The double-layer annular groove in the positioning plate and the first limiting device inside the positioning plate play the role of axial positioning and radial positioning in the bonding process of the bonding device. In the bonding and positioning process, the adhesive layer is fully and evenly bonded, and the cone sleeve is accurately positioned, thereby improving the quality and accuracy of the primary mirror bonding. The device has a simple structure and the bonding and positioning steps are simple, thereby reducing the time waste caused by repeated bonding adjustments in the past, improving work efficiency, and solving the problems of low positioning accuracy of the cone sleeve and the flexible joint and difficulty in positioning the primary mirror assembly during the bonding of the cone sleeve in the prior art.

Description

Technical Field

[0001] The invention relates to the field of optical technology, and in particular to a primary mirror cone sleeve bonding and positioning device and method. Background Art

[0002] The common primary mirror back support structure mostly adopts three-point support on the back, and the primary mirror assembly is mainly composed of the primary mirror, cone sleeve, flexible joint and back plate. A cone hole is opened on the back of the primary mirror, and it is connected to the cone sleeve by gluing, and the cone sleeve is connected to the flexible joint by screws. The cone hole on the back of the primary mirror supported by the back is often connected to the cone sleeve by gluing, and the cone sleeve is connected to the flexible joint by screws. Finally, the three pairs of flexible joints are connected to the holes of the back plate by screws through the flange holes. Since the cone sleeve can rotate along the axial direction during the primary mirror installation and adjustment, the relative position of the cone sleeve in the axial and radial directions is not well positioned, so it is very important to ensure that the hole position on the flexible joint is aligned with the hole position on the back plate. If the method of direct hand bonding is adopted, it will lead to a large error, and the relative position of the flexible joint and the hole position of the back plate cannot be guaranteed. Each deflection of the cone sleeve will eventually cause the hole position of the flexible joint to be misaligned with the hole position on the back plate, and the installation of the back plate has certain difficulties. The existing scheme cannot well solve the problem of positioning the cone sleeve and the flexible joint, and the difficulty of positioning the primary mirror assembly during the bonding of the cone sleeve. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a primary mirror cone sleeve bonding and positioning device and method.

[0004] A main mirror cone sleeve bonding and positioning device, comprising: a main mirror positioning device and a positioning plate, the main mirror and the working surface of the main mirror positioning device are connected, the connecting end of the main mirror positioning device is connected to the positioning plate, a plurality of through holes corresponding to the back cone hole of the main mirror are opened on the positioning plate, a double-layer annular groove is opened on the inner wall surface of the through hole, a first limiting device is arranged inside the double-layer annular groove, the main mirror cone sleeve bonding and positioning device also includes a grinding device and a bonding device, the cone sleeve is installed in the back cone hole of the main mirror, the bottom end of the flexible joint is connected to the cone sleeve, the top end of the flexible joint is connected to the bonding device, a second limiting device is arranged on the bonding device, the first limiting device and the second limiting device are in contact, and the grinding device and the cone sleeve are arranged correspondingly.

[0005] Furthermore, the bonding device is a cone sleeve bonding rod, a flange is provided on the cone sleeve bonding rod, a flange hole corresponding to the flange is opened at the top end of the flexible joint, and the flange is connected to the flange hole.

[0006] Furthermore, the second limiting device is a first limiting boss, the first limiting boss is arranged on the flange, the first limiting device arranged inside the double-layer annular groove is the second limiting boss, and the first limiting boss is in contact with the second limiting boss.

[0007] Furthermore, the grinding device is a cone sleeve grinding rod, and the cone sleeve grinding rod and the cone sleeve are arranged correspondingly.

[0008] Furthermore, the main mirror positioning device includes a first main mirror positioning block and a second main mirror positioning block, the first main mirror positioning blocks are arranged in pairs, the working surfaces of the first main mirror positioning block and the second main mirror positioning block are in contact with the main mirror, and the connecting ends of the first main mirror positioning block and the second main mirror positioning block are connected to the positioning plate.

[0009] Furthermore, a mounting groove corresponding to the first limiting boss is also provided at the through hole on the positioning plate.

[0010] Furthermore, a back plate is installed on a side of the positioning plate away from the primary mirror.

[0011] Furthermore, a mounting hole corresponding to the position of the flange hole at the top end of the flexible joint is provided on the back plate.

[0012] Furthermore, the through hole formed on the positioning plate and the tapered hole on the back of the primary mirror are located on the same axis, and the diameter of the through hole formed on the positioning plate is larger than the diameter of the tapered hole on the back of the primary mirror.

[0013] The present invention also includes a method for bonding and positioning a main mirror cone sleeve, which is implemented based on a main mirror cone sleeve bonding and positioning device described in any one of the above items. First, the position of the main mirror is fixed, and the working surfaces of the first main mirror positioning block and the second main mirror positioning block are fitted and contacted with the side of the main mirror. The connecting ends of the first main mirror positioning block and the second main mirror positioning block are connected to the positioning plate, and the cone hole on the back of the main mirror is ground in sequence using a cone sleeve grinding rod to make the cone sleeve fit with the cone hole on the back of the main mirror. After the grinding is completed, the cone sleeve grinding rod is removed, and then multiple cone sleeves are bonded and positioned at the same time, the bottom end of the flexible joint is connected to the cone sleeve, and then the cone sleeve bonding rod is connected to the cone sleeve. The flange on is connected with the flange hole on the flexible joint, a layer of glue is applied to the outer surface of the cone sleeve, the connected cone sleeve bonding rod, the flexible joint and the cone sleeve are installed into the cone hole on the back of the primary mirror, the first limiting boss is installed into the double-layer annular groove through the mounting groove, the cone sleeve bonding rod is reciprocated in the clockwise and counterclockwise directions until the glue layer is evenly applied between the outer surface of the cone sleeve and the cone hole on the back of the primary mirror, finally, the first limiting boss and the second limiting boss are completely contacted to form a limit, after the glue layer is cured, the cone sleeve bonding rod and the flange are removed from the flexible joint, and the back plate and the flexible joint are connected through the mounting hole on the back plate and the flange hole on the flexible joint.

[0014] The technical solution of the present invention has the following advantages:

[0015] 1. The present invention provides a main mirror cone sleeve bonding and positioning device and method, which positions and fixes the main mirror through the main mirror positioning device and the positioning plate, the double-layer annular groove in the positioning plate and the first limiting device inside it play the role of axial positioning and radial positioning during the bonding process of the bonding device, reducing the installation error, and the second limiting device is installed in the double-layer annular groove. After the bonding device is rotated, the first limiting device and the second limiting device are in contact or matched connection to form a limit. In the bonding and positioning process, the cone sleeve and the cone hole on the back of the main mirror are first ground by a grinding device, and then the flexible joint, the bonding device and the cone sleeve are connected and sent into the cone hole on the back of the main mirror together, and the bonding device is rotated at the same time to complete the bonding positioning, so that the adhesive layer is fully and evenly bonded, the cone sleeve is accurately positioned, the quality and accuracy of the main mirror bonding are improved, and the device structure is simple, the bonding and positioning steps are simple, and the time waste caused by repeated bonding adjustments in the past is reduced, thereby improving work efficiency.

[0016] 2. In the technical solution provided by the present invention, a flange plate is used on the cone sleeve bonding rod, and a flange hole is opened on the flexible joint. The flange plate and the flange hole are connected in a coordinated manner, which is not only convenient for disassembly and installation, but also helps to improve the accuracy of the positioning process. The installation groove and the through hole opened on the positioning plate have a diameter larger than the diameter of the cone hole on the back of the primary mirror in order to more conveniently pass the cone sleeve bonding rod through the positioning plate and install it into the cone sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation of the cone sleeve bonding rod, the flexible joint and the cone sleeve of the present invention;

[0020] Figure 3 This is a schematic diagram of the positioning plate structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation of the primary mirror and the back plate of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation of the flexible joint and the cone sleeve of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure in which two mounting grooves are provided at the through hole of the positioning plate of the present invention;

[0024] Figure 7 It is a schematic structural diagram of two first limiting bosses provided on the flange of the present invention.

[0025] Description of reference numerals:

[0026] 1-primary mirror; 2-first primary mirror positioning block; 3-second primary mirror positioning block; 4-positioning plate; 5-taper sleeve grinding rod; 6-taper sleeve bonding rod; 7-flexible joint; 8-taper sleeve; 9-back plate. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figure 1~Figure 5A main mirror cone sleeve bonding and positioning device shown in the figure includes: a main mirror positioning device and a positioning plate 4, the main mirror 1 is connected to the working surface of the main mirror positioning device, the connecting end of the main mirror positioning device is connected to the positioning plate 4, a plurality of through holes corresponding to the back cone hole of the main mirror 1 are opened on the positioning plate 4, a double-layer annular groove is opened on the inner wall surface of the through hole, and a first limiting device is arranged inside the double-layer annular groove, the main mirror cone sleeve bonding and positioning device also includes a grinding device and a bonding device, the cone sleeve 8 is installed in the back cone hole of the main mirror 1, the bottom end of the flexible joint 7 is connected to the cone sleeve 8, the top end of the flexible joint 7 is connected to the bonding device, and a second limiting device is arranged on the bonding device, the first limiting device and the second limiting device are in contact to form a limit, and the grinding device and the cone sleeve 8 are arranged correspondingly.

[0032] The above-mentioned main mirror cone sleeve bonding and positioning device positions and fixes the main mirror 1 through the main mirror positioning device and the positioning plate 4. The double-layer annular groove in the positioning plate 4 and the first limiting device inside it play the role of axial positioning and radial positioning during the bonding process of the bonding device, reducing the installation error. The second limiting device is installed in the double-layer annular groove. After the bonding device is rotated, the first limiting device and the second limiting device are in contact or matched to form a limit. In the bonding and positioning process, the cone sleeve 8 and the back cone hole of the main mirror 1 are first ground by a grinding device, and then the flexible joint 7, the bonding device and the cone sleeve 8 are connected and sent into the back cone hole of the main mirror 1 together. At the same time, the bonding device is rotated to complete the bonding positioning, so that the adhesive layer is fully and evenly bonded, and the cone sleeve 8 is accurately positioned, thereby improving the quality and accuracy of the bonding of the main mirror 1. The device has a simple structure and the bonding and positioning steps are simple, which reduces the time waste caused by repeated bonding adjustments in the past and improves the work efficiency. On the one hand, the positioning plate 4 can play the role of fixing and limiting the main mirror 1, and on the other hand, it can also position the cone sleeve 8.

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the bonding device is a cone sleeve bonding rod 6, a flange is provided on the cone sleeve bonding rod 6, a flange hole corresponding to the flange is opened at the top of the flexible joint 7, and the flange is connected to the flange hole; the cone sleeve bonding rod 6 is connected to the flexible joint 7 by connecting the flange and the flange hole, and the connection method of the flange and the flange hole is not only convenient for disassembly and installation, but also helps to improve the accuracy of the positioning process.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, the second limiting device is a first limiting boss, and the first limiting boss is arranged on the flange plate. The first limiting device arranged inside the double-layer annular groove is the second limiting boss, and the first limiting boss is installed in the double-layer annular groove. After rotating the cone sleeve bonding rod 6, the first limiting boss and the second limiting boss contact to form a limit; the first limiting boss is a dynamic limiting device designed on the cone sleeve bonding rod 6, and the second limiting boss is a fixed limiting device arranged on the positioning plate 4. By rotating the cone sleeve bonding rod 6 to drive the flexible joint 7 and the cone sleeve 8 to rotate, on the one hand, the adhesive layer can be bonded more evenly and firmly, and on the other hand, the dynamic limiting device on the cone sleeve bonding rod 6 is rotated to the fixed limiting position on the positioning plate 4, and finally the gluing and positioning process of the cone sleeve 8 is completed. In this embodiment, a first limiting boss is arranged on the flange plate. In addition, the number of the first limiting bosses can be increased, such as Figure 7 As shown, two first limiting bosses are provided on the flange. Figure 6 As shown, two installation grooves corresponding to the two first limiting bosses are opened at the through hole of the positioning plate 4, and a second limiting boss is arranged inside the double-layer annular groove of the positioning plate 4. The two first limiting bosses can further improve the accuracy of bonding positioning, and the installation operation process of the flange remains unchanged.

[0035] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the grinding device is a tapered sleeve grinding rod 5, and the tapered sleeve grinding rod 5 is correspondingly arranged with the tapered sleeve 8; grinding the back tapered hole of the primary mirror 1 by the tapered sleeve grinding rod 5 can make the tapered hole and the tapered sleeve 8 have a better fit.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the main mirror positioning device includes a first main mirror positioning block 2 and a second main mirror positioning block 3, the first main mirror positioning block 2 is arranged in pairs, the working surfaces of the first main mirror positioning block 2 and the second main mirror positioning block 3 are in contact with the main mirror 1, and the connecting ends of the first main mirror positioning block 2 and the second main mirror positioning block 3 are connected to the positioning plate 4; the first main mirror positioning block 2, the second main mirror positioning block 3 and the positioning plate 4 arranged in pairs are used to fix the position of the main mirror 1 to make the main mirror 1 more stable, the first main mirror positioning block 2 and the second main mirror positioning block 3 are respectively fitted with the sides of the main mirror 1, and then, the connecting ends of the first main mirror positioning block 2 and the second main mirror positioning block 3 are connected and fixed to the positioning plate 4 by screws to fix the position of the main mirror 1.

[0037] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a mounting groove corresponding to the first limiting boss is also provided at the through hole on the positioning plate 4, so as to facilitate installation of the flange and the first limiting boss into the double-layer annular groove, thereby making it easier to install the cone sleeve bonding rod 6.

[0038] like Figure 1~Figure 5 As shown, in this embodiment, a back plate 9 is installed on the side of the positioning plate 4 away from the primary mirror 1; a mounting hole corresponding to the position of the flange hole at the top of the flexible joint 7 is opened on the back plate 9; after the glue layer is cured, the cone sleeve bonding rod 6 and the flange plate are removed from the flexible joint 7, and the back plate 9 and the flexible joint 7 are connected by screws through the mounting hole on the back plate 9 and the flange hole on the flexible joint 7.

[0039] like Figure 1~Figure 5 As shown, in this embodiment, the through hole opened on the positioning plate 4 and the tapered hole on the back of the primary mirror 1 are located on the same axis, and the diameter of the through hole opened on the positioning plate 4 is larger than the diameter of the tapered hole on the back of the primary mirror 1; this facilitates the operation of the bonding process, so that the tapered sleeve bonding rod 6, the flexible joint 7 and the tapered sleeve 8 can be more conveniently installed in the tapered hole on the back of the primary mirror 1 during bonding.

[0040] like Figure 1~Figure 5 As shown, the present invention also includes a method for bonding and positioning a main mirror cone sleeve, which is implemented based on a main mirror cone sleeve bonding and positioning device described in any one of the above items. First, fix the position of the main mirror 1, and make the working surfaces of the first main mirror positioning block 2 and the second main mirror positioning block 3 fit in contact with the side of the main mirror 1. The connecting ends of the first main mirror positioning block 2 and the second main mirror positioning block 3 are connected to the positioning plate 4. Use the cone sleeve grinding rod 5 to grind the back cone hole of the main mirror 1 in turn, so that the cone sleeve 8 fits the back cone hole of the main mirror 1. After the grinding is completed, remove the cone sleeve grinding rod 5, and then bond and position multiple cone sleeves 8 at the same time, connect the bottom end of the flexible joint 7 to the cone sleeve 8 with screws, and then tighten the cone sleeve bonding rod 6. The flange hole on the blue plate and the flexible joint 7 are connected with screws, and a glue layer is applied to the outer surface of the cone sleeve 8. The connected cone sleeve bonding rod 6, the flexible joint 7 and the cone sleeve 8 are installed into the cone hole on the back of the primary mirror 1 through the through hole on the positioning plate 4. The first limiting boss is installed into the double-layer annular groove through the mounting groove. The cone sleeve bonding rod 6 is reciprocated in the clockwise and counterclockwise directions until the glue layer is evenly applied between the outer surface of the cone sleeve 8 and the cone hole on the back of the primary mirror 1. Finally, the first limiting boss and the second limiting boss are completely in contact to form a limit. After the glue layer is cured, the cone sleeve bonding rod 6 and the flange plate are removed from the flexible joint 7, and the back plate 9 and the flexible joint 7 are connected through the mounting hole on the back plate 9 and the flange hole on the flexible joint 7.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A primary mirror cone sleeve bonding and positioning device, comprising: A primary mirror positioning device and a positioning plate (4), characterized in that the primary mirror (1) is connected to the working surface of the primary mirror positioning device, the connecting end of the primary mirror positioning device is connected to the positioning plate (4), a plurality of through holes corresponding to the back conical hole of the primary mirror (1) are provided on the positioning plate (4), a double-layer annular groove is provided on the inner wall surface of the through hole, a first limiting device is provided inside the double-layer annular groove, the primary mirror cone sleeve bonding positioning device further comprises a grinding device and a bonding device, the cone sleeve (8) is installed in the back conical hole of the primary mirror (1), the bottom end of the flexible joint (7) is connected to the cone sleeve (8), the top end of the flexible joint (7) is connected to the bonding device, a second limiting device is provided on the bonding device, the first limiting device and the second limiting device are in contact, and the grinding device and the cone sleeve (8) are provided correspondingly; The bonding device is a cone sleeve bonding rod (6), a flange is provided on the cone sleeve bonding rod (6), a flange hole corresponding to the flange is provided at the top end of the flexible joint (7), and the flange is connected to the flange hole; The second limiting device is a first limiting boss, the first limiting boss is arranged on the flange, the first limiting device arranged inside the double-layer annular groove is a second limiting boss, and the first limiting boss is in contact with the second limiting boss; The through hole on the positioning plate (4) is also provided with a mounting groove corresponding to the first limiting boss; The primary mirror positioning device and the positioning plate (4) position and fix the primary mirror (1), the cone sleeve (8) and the back cone hole of the primary mirror (1) are ground by a grinding device, and the bonding device is rotated to complete the bonding positioning so that the adhesive layer is fully and evenly bonded, and after the cone sleeve bonding rod (6) is rotated, the first limiting boss and the second limiting boss are in contact to form a limit.

2. A primary mirror cone sleeve bonding and positioning device according to claim 1, characterized in that: The grinding device is a cone sleeve grinding rod (5), and the cone sleeve grinding rod (5) and the cone sleeve (8) are arranged correspondingly.

3. A primary mirror cone sleeve bonding and positioning device according to claim 1, characterized in that: The main mirror positioning device comprises a first main mirror positioning block (2) and a second main mirror positioning block (3), the first main mirror positioning blocks (2) are arranged in pairs, the working surfaces of the first main mirror positioning block (2) and the second main mirror positioning block (3) are in contact with the main mirror (1), and the connecting ends of the first main mirror positioning block (2) and the second main mirror positioning block (3) are connected to the positioning plate (4).

4. A primary mirror cone sleeve bonding and positioning device according to claim 1, characterized in that: A back plate (9) is mounted on the side of the positioning plate (4) away from the primary mirror (1).

5. A primary mirror cone sleeve bonding and positioning device according to claim 4, characterized in that: The back plate (9) is provided with a mounting hole corresponding to the position of the flange hole at the top end of the flexible joint (7).

6. A primary mirror cone sleeve bonding and positioning device according to claim 1, characterized in that: The through hole formed on the positioning plate (4) and the tapered hole on the back of the primary mirror (1) are located on the same axis, and the diameter of the through hole formed on the positioning plate (4) is greater than the diameter of the tapered hole on the back of the primary mirror (1).

7. A method for bonding and positioning a primary mirror cone sleeve, the method being implemented based on a primary mirror cone sleeve bonding and positioning device according to any one of claims 1 to 6, characterized in that: First, the position of the primary mirror (1) is fixed, and the working surfaces of the first primary mirror positioning block (2) and the second primary mirror positioning block (3) are fitted and contacted with the side surface of the primary mirror (1). The connecting ends of the first primary mirror positioning block (2) and the second primary mirror positioning block (3) are connected to the positioning plate (4). The conical hole on the back of the primary mirror (1) is ground in sequence using a conical sleeve grinding rod (5) so that the conical sleeve (8) fits with the conical hole on the back of the primary mirror (1). After the grinding is completed, the conical sleeve grinding rod (5) is removed. Then, a plurality of conical sleeves (8) are bonded and positioned at the same time, the bottom end of the flexible joint (7) is connected to the conical sleeve (8), and then the flange on the conical sleeve bonding rod (6) is connected to the flange hole on the flexible joint (7). The outer surface of the cone sleeve (8) is coated with a glue layer, and the connected cone sleeve bonding rod (6), the flexible joint (7) and the cone sleeve (8) are installed in the cone hole on the back of the primary mirror (1). The first limiting boss is installed in the double-layer annular groove through the installation groove, and the cone sleeve bonding rod (6) is reciprocated in the clockwise and counterclockwise directions until the glue layer is evenly applied to the outer surface of the cone sleeve (8) and the cone hole on the back of the primary mirror (1). Finally, the first limiting boss and the second limiting boss are completely in contact to form a limit. After the glue layer is cured, the cone sleeve bonding rod (6) and the flange are removed from the flexible joint (7), and the back plate (9) and the flexible joint (7) are connected through the installation hole on the back plate (9) and the flange hole on the flexible joint (7).

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