A cold optical strip reflecting prism assembly with a clamping support structure

Abstract

The present invention relates to a cold optical long strip reflective prism assembly with a clamping support structure, and its purpose is to solve the problem that the existing long strip reflective mirror clamping scheme in infrared cold optics cannot effectively and conveniently solve the severe deformation of the optical reflective mirror caused by the large temperature difference between the processing and assembly and the actual working environment of the long strip reflective mirror, which directly affects the imaging quality. The structure includes a cold optical long strip reflective prism, a reflective prism bracket, a reflective prism bonding seat, a reflective prism auxiliary positioning block, and a center positioning pin, a reflective prism bonding seat positioning pin and a reflective prism bonding seat connecting screw; the center positioning pin is used for preliminary positioning; the right angle position of the reflective prism auxiliary positioning block abuts against the cold optical long strip reflective prism; the reflective prism bonding seat positioning pin is used for further positioning; the reflective prism bonding seat connecting screw is used for final fixed connection; the inner walls of the bonding ends of the two reflective prism bonding seats are respectively bonded to the two side end faces of the cold optical long strip reflective prism by low temperature glue.

Description

Technical Field

[0001] The invention relates to an infrared cold optical reflection prism support structure, in particular to a cold optical long strip reflection prism assembly with a clamping support structure. Background Art

[0002] With the increasing demand for infrared detection, infrared cold optical technology has developed rapidly, and the low-temperature deformation of infrared optical components is one of the key factors restricting the development of infrared cold optical technology. In order to reduce the size and weight of the instrument, the application of reflectors in the optical system is indispensable. In order to meet the refraction requirements of the optical system, long strip reflectors have been widely used. However, the shrinkage deformation of long strip reflectors in the cold optical environment is very severe. This shrinkage deformation is manifested as self-contraction on the one hand, and relative deformation between the reflector and the structural parts on the other hand.

[0003] For space detection remote sensors, it is impossible to achieve the unification of optical elements and supporting structure materials. There will always be deviations in their thermal expansion coefficients, and the thermal expansion coefficient changes nonlinearly with changes in temperature. During the cooling process, there will be differences in the shrinkage deformation of optical elements and supporting structure parts, causing the optical elements to bear huge deformation stress.

[0004] At the same time, since the processing and assembly of optical reflectors and reflector support structures are usually carried out at room temperature, while the actual working environment of the infrared system is 100K or even lower, the temperature change exceeds 180K. The reflector and the support structure themselves deform violently with temperature changes. More importantly, the reflector and the support structure are made of different materials, and their performance parameters such as linear expansion coefficient and specific heat capacity are different, and these performance parameters will change nonlinearly with temperature changes. Due to the different linear expansion coefficients of the materials, the reflector and the support structure shrink differently during the cooling process. The huge temperature difference can easily cause the position of the optical components to shift, and the components themselves to deform or even be damaged.

[0005] At present, the low-temperature infrared cold optical system at home and abroad mainly adopts uniformity design to achieve athermalization. The same material is selected for structural processing of the entire system to avoid deformation differences between structural parts. However, the difference in the performance of optical components and supporting materials restricts the realization of uniformity. For complex optical systems, it is necessary to use optical components and supporting structures of different materials. When the materials of the long optical reflector and the supporting structure are different, the spring pressing sheet structure combination support is mainly used. After adopting this solution, in order to ensure the optical requirements, the processing accuracy of the optical components and supporting structure parts is required to be high, which also brings inconvenience to the assembly.

[0006] Regarding the problem that long strip reflectors in infrared cold optics produce large surface changes and large thermal stress under large temperature differences, the above-mentioned conventional clamping scheme cannot effectively and conveniently solve the problem of severe deformation of optical reflectors in cold optical infrared systems under huge temperature differences. Summary of the invention

[0007] The purpose of the present invention is to solve the technical problem that the existing clamping scheme of long strip reflectors in infrared cold optics cannot effectively and conveniently solve the severe deformation of the optical reflectors caused by the large temperature difference between the processing and assembly and the actual working environment, which directly affects the imaging quality, and provide a cold optical long strip reflector prism assembly with a clamping support structure.

[0008] To solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0009] A cold optical long reflective prism assembly with a clamping support structure, which is special in that:

[0010] It includes a cold optical long strip reflecting prism, a reflecting prism bracket, a reflecting prism bonding seat, a reflecting prism auxiliary positioning block, a center positioning pin, a reflecting prism bonding seat positioning pin and a reflecting prism bonding seat connecting screw;

[0011] The reflective prism bracket is an integrated piece, including a bottom plate and two reflective prism adhesive seat mounting platforms vertically arranged at both ends of the bottom plate; the bottom plate is provided with component connection holes for external connection;

[0012] The reflective prism adhesive seat is an integral piece, comprising a reflective prism adhesive seat adhesive end and a reflective prism adhesive seat mounting end, the two being partially fixedly connected by a connecting plate to form a flexible spacing groove between the two;

[0013] The bonding end of the reflective prism bonding seat is provided with a reflective prism bonding seat glue injection hole; the periphery of the reflective prism bonding seat glue injection hole is provided with a reflective prism bonding seat bonding wall, a reflective prism bonding seat inner ring flexible groove, a reflective prism bonding seat flexible wall and a reflective prism bonding seat outer ring flexible groove in sequence from the inside to the outside;

[0014] A flexible connecting section of the inner ring of the reflecting prism bonding seat is provided between the outer wall of the bonding wall of the reflecting prism bonding seat and the inner wall of the flexible wall of the reflecting prism bonding seat;

[0015] A flexible connecting section of the outer ring of the reflecting prism bonding seat is provided between the outer wall of the flexible wall of the reflecting prism bonding seat and the outer wall of the flexible groove of the outer ring of the reflecting prism bonding seat;

[0016] The mounting end of the reflective prism adhesive seat is provided with a glue injection hole corresponding to the glue injection hole of the reflective prism adhesive seat;

[0017] The central positioning pin preliminarily positions the reflective prism bracket and the reflective prism bonding seat mounting end;

[0018] The auxiliary positioning block for the reflecting prism is a right-angle piece, fixedly connected to the inner wall of the bonding end of the reflecting prism bonding seat, and its right-angle side wall abuts against the right-angle part of the cold optical long strip reflecting prism;

[0019] The positioning pins of the reflective prism bonding seat further position the reflective prism bracket and the mounting end of the reflective prism bonding seat;

[0020] The reflective prism bonding seat connecting screws finally connect the reflective prism bracket and the reflective prism bonding seat mounting end;

[0021] The inner walls of the bonding ends of the two reflecting prism bonding seats of the two reflecting prism bonding seat mounting platforms are respectively bonded to the end faces on both sides of the cold optical long strip reflecting prism by low-temperature adhesive.

[0022] Furthermore, the two reflective prism adhesive seat mounting platforms of the reflective prism bracket are both provided with a central positioning pin hole, a reflective prism bracket positioning pin hole and a reflective prism bracket connection adjustment waist hole;

[0023] The bonding end of the reflecting prism bonding seat is also provided with a connecting hole for a reflecting prism auxiliary positioning block;

[0024] The mounting end of the reflective prism adhesive seat is provided with a reflective prism adhesive seat center positioning pin hole corresponding to the center positioning pin hole, a reflective prism adhesive seat positioning pin hole corresponding to the reflective prism bracket positioning pin hole, and a reflective prism adhesive seat connecting screw hole corresponding to the reflective prism bracket connection adjustment waist hole;

[0025] The center positioning pin passes through the center positioning pin hole and the center positioning pin hole of the reflective prism bonding seat to preliminarily position the reflective prism bracket and the reflective prism bonding seat;

[0026] The positioning pin of the reflecting prism bonding seat passes through the positioning pin hole of the reflecting prism bonding seat and the positioning pin hole of the reflecting prism bracket to further position the reflecting prism bracket and the reflecting prism bonding seat;

[0027] The reflective prism adhesive seat connecting screw passes through the reflective prism adhesive seat connecting screw hole and the reflective prism bracket connecting adjustment waist hole to finally connect the reflective prism bracket and the reflective prism adhesive seat.

[0028] Furthermore, a reflecting prism auxiliary positioning block is provided with a reflecting prism auxiliary positioning block mounting hole, and the reflecting prism auxiliary positioning block is fixedly connected to the reflecting prism bonding seat by bolts through the reflecting prism auxiliary positioning block mounting hole and the reflecting prism auxiliary positioning block connecting hole on the bonding end of the reflecting prism bonding seat.

[0029] Furthermore, the cold optical elongated reflective prism is in the shape of an elongated trapezoid.

[0030] Furthermore, the cold optical long strip reflecting prism is made of JGS2 glass.

[0031] Furthermore, there are two positioning pins of the reflective prism bonding seat on each side.

[0032] Furthermore, there are four connecting screws of the reflective prism bonding seat on each side.

[0033] Furthermore, the four reflective prism bonding seat connecting screws on each side are arranged in a parallelogram shape.

[0034] Furthermore, each of the auxiliary positioning blocks of the reflective prism is fixedly connected to the inner wall of the bonding end of the reflective prism bonding seat by three bolts.

[0035] Furthermore, the low temperature adhesive is low temperature optical epoxy adhesive;

[0036] The reflecting prism bracket, the reflecting prism bonding seat and the reflecting prism auxiliary positioning block are all made of titanium alloy material.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The cold optical long strip reflecting prism assembly with a clamping support structure provided by the present invention is used to bond and fix the cold optical long strip reflecting prism on two symmetrical reflecting prism bonding seats by low-temperature optical epoxy glue. Before bonding, the two reflecting prism bonding seats are installed on the reflecting prism bracket, and the two auxiliary positioning blocks are installed at the corresponding positions of the reflecting prism bonding seats. The azimuth angle is adjusted. During the bonding process, the assembly is placed vertically, and one end of the reflecting prism is bonded first. After curing, the other end of the reflecting prism is bonded. An inner and outer double-layer annular flexible groove is designed on each reflecting prism bonding seat to directly release the deformation and thermal stress caused by temperature changes at both ends of the reflecting prism; each reflecting The prism bonding seat is divided into two layers, which are separated by a flexible structure in the middle; a bonding surface is designed on the reflecting prism bonding layer to bond with the reflecting prism; the mounting end of the reflecting prism bonding seat is connected to the reflecting prism bracket by four screws, and the center positioning pin is combined with two pins to form the central axis for adjusting the angle of the reflecting prism; the first thermal stress release is achieved through the adhesive layer; the thermal stress release of the secondary reflecting prism is achieved by designing inner and outer double-layer annular flexible grooves on the reflecting prism bonding seat, providing axial and radial dual flexibility; the flexible structure solves the problem of severe deformation of the reflecting prism caused by the large temperature difference between processing and assembly and the actual working environment in the cold optical and low-temperature infrared optical system.

[0039] 2. The cold optical long reflective prism assembly with a clamping support structure provided by the present invention can adjust the bonding flexibility of the reflective prism by adjusting the area and size of the bonding block for reflective prisms of different sizes; and can adjust the bonding flexibility of the reflective prism by adjusting the thickness of the flexible wall on the reflective prism bonding seat for reflective prisms of different materials, thereby achieving the deformation requirements of different lenses.

[0040] 3. The cold optical long strip reflecting prism assembly with a clamping support structure provided by the present invention is made of titanium alloy material, has good rigidity and toughness, and can well realize the processing of flexible structures.

[0041] 4. The cold optical long strip reflecting prism assembly provided by the present invention has a clamping support structure, and the cold optical long strip reflecting prism clamping support structure is directly bonded to the cold optical long strip reflecting prism, thereby reducing the difficulty of processing and debugging and assembling the flexible support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a cold optical long strip reflecting prism assembly with a clamping support structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the structure of a reflective prism support of a cold optical long reflective prism assembly with a clamping support structure of the present invention;

[0044] Figure 3 The structure of the reflective prism bonding seat of the cold optical long reflective prism assembly with a clamping support structure of the present invention is schematically shown. Figure 1 ;

[0045] Figure 4 The structure of the reflective prism bonding seat of the cold optical long reflective prism assembly with a clamping support structure of the present invention is schematically shown. Figure 2 ;

[0046] Figure 5 A half-section view of a reflective prism bonding seat of a cold optical long reflective prism assembly with a clamping support structure of the present invention;

[0047] Figure 6 It is a schematic diagram of the structure of the auxiliary positioning block of the reflective prism of the cold optical long reflective prism assembly with a clamping support structure of the present invention;

[0048] Description of reference numerals:

[0049] 1-cold optical long strip reflecting prism, 2-reflecting prism bracket, 3-reflecting prism bonding seat, 4-reflecting prism auxiliary positioning block, 5-reflecting prism bonding seat positioning pin, 6-reflecting prism bonding seat connecting screw, 7-center positioning pin, 2-1-reflecting prism bonding seat mounting platform, 2-2-component connection hole, 2-3-reflecting prism bracket connection adjustment waist hole, 2-4-center positioning pin hole, 2-5-reflecting prism bracket positioning pin hole, 3-1-reflecting prism bonding seat outer ring flexible groove, 3-2-reflecting prism bonding seat flexible wall, 3-3-reflecting prism bonding seat inner ring flexible groove, 3-4-reflecting 3-5-reflecting prism auxiliary positioning block connecting hole, 3-6-reflecting prism bonding seat glue injection hole, 3-7-reflecting prism bonding seat positioning pin hole, 3-8-glue injection through hole, 3-9-reflecting prism bonding seat center positioning pin hole, 3-10-reflecting prism bonding seat connecting screw hole, 3-11-reflecting prism bonding seat mounting end, 3-12-flexible spacing groove, 3-13-reflecting prism bonding seat bonding end, 3-14-reflecting prism bonding seat outer ring flexible connecting section, 3-15-reflecting prism bonding seat inner ring flexible connecting section, 4-1-reflecting prism auxiliary positioning block mounting hole. DETAILED DESCRIPTION

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] The cold optical strip reflecting prism assembly with a clamping support structure of the present invention is as follows: Figure 1 As shown, it includes a cold optical long strip reflecting prism 1, a reflecting prism bracket 2, a reflecting prism bonding seat 3, a reflecting prism auxiliary positioning block 4, and a central positioning pin 7, a reflecting prism bonding seat positioning pin 5 and a reflecting prism bonding seat connecting screw 6; the cold optical long strip reflecting prism 1 is in a long trapezoidal shape; as shown Figure 2 As shown, the reflective prism bracket 2 is an integral part, including a bottom plate and two reflective prism adhesive seat mounting platforms 2-1 vertically arranged at both ends of the bottom plate; the bottom plate is provided with a component connection hole 2-2 for external connection; Figures 3 to 5As shown, the reflecting prism adhesive seat 3 is an integral part, including a reflecting prism adhesive seat adhesive end 3-13 and a reflecting prism adhesive seat mounting end 3-11, which are partially fixedly connected by a connecting plate to form a flexible spacing groove 3-12 between the two; a reflecting prism adhesive seat glue injection hole 3-6 is provided on the reflecting prism adhesive seat adhesive end 3-13; and a reflecting prism adhesive seat adhesive wall 3-5, a reflecting prism adhesive seat inner ring flexible groove 3-3, a reflecting prism adhesive seat flexible wall 3-2 and a reflecting prism adhesive seat outer ring flexible groove 3- 1; a reflective prism bonding seat inner ring flexible connecting section 3-15 is provided between the outer wall of the reflective prism bonding seat bonding wall 3-5 and the inner wall of the reflective prism bonding seat flexible wall 3-2; a reflective prism bonding seat outer ring flexible connecting section 3-14 is provided between the outer wall of the reflective prism bonding seat flexible wall 3-2 and the outer wall of the reflective prism bonding seat outer ring flexible groove 3-1; a glue injection hole 3-8 corresponding to the glue injection hole 3-6 of the reflective prism bonding seat is provided on the reflective prism bonding seat mounting end 3-11; the central positioning pin 7 preliminarily positions the reflective prism bracket 2 and the reflective prism bonding seat mounting end 3-11; Figure 6 As shown, the auxiliary positioning block 4 of the reflecting prism is a right-angled piece, which is fixedly connected to the inner wall of the bonding end 3-13 of the reflecting prism bonding seat by three bolts, and its right-angled side wall abuts against the right-angled part of the cold optical long strip reflecting prism 1; the positioning pin 5 of the reflecting prism bonding seat further positions the reflecting prism bracket 2 and the mounting end 3-11 of the reflecting prism bonding seat; the connecting screw 6 of the reflecting prism bonding seat finally connects the reflecting prism bracket 2 and the mounting end 3-11 of the reflecting prism bonding seat. The inner walls of the bonding ends 3-13 of the reflecting prism bonding seat of the two reflecting prism bonding seat mounting platforms 2-1 are respectively bonded to the two side end faces of the cold optical long strip reflecting prism 1 by low-temperature glue.

[0052] like Figure 1As shown, the two reflecting prism adhesive seat mounting platforms 2-1 of the reflecting prism bracket 2 are both provided with a central positioning pin hole 2-4, a reflecting prism bracket positioning pin hole 2-5 and a reflecting prism bracket connection adjustment waist hole 2-3; the reflecting prism adhesive seat bonding end 3-13 is also provided with a reflecting prism auxiliary positioning block connecting hole 3-4; the reflecting prism adhesive seat mounting end 3-11 is provided with a glue injection hole 3-8 corresponding to the reflecting prism adhesive seat glue injection hole 3-6, a reflecting prism adhesive seat central positioning pin hole 3-9 corresponding to the central positioning pin hole 2-4, a reflecting prism adhesive seat positioning pin hole 3-7 corresponding to the reflecting prism bracket positioning pin hole 2-5, and a reflecting prism adhesive seat positioning pin hole 3-8 corresponding to the reflecting prism bracket positioning pin hole 2-5. The frame connection adjustment waist hole 2-3 corresponds to the reflecting prism bonding seat connecting screw hole 3-10; the center positioning pin 7 passes through the reflecting prism bonding seat center positioning pin hole 3-9 and the center positioning pin hole 2-4 to preliminarily position the reflecting prism bracket 2 and the reflecting prism bonding seat 3; the reflecting prism bonding seat positioning pin 5 passes through the reflecting prism bonding seat positioning pin hole 3-7 and the reflecting prism bracket positioning pin hole 2-5 to further position the reflecting prism bracket 2 and the reflecting prism bonding seat 3; the reflecting prism bonding seat connecting screw 6 passes through the reflecting prism bonding seat connecting screw hole 3-10 and the reflecting prism bracket connection adjustment waist hole 2-3 to finally connect the reflecting prism bracket 2 and the reflecting prism bonding seat 3. The reflecting prism auxiliary positioning block 4 is provided with a reflecting prism auxiliary positioning block mounting hole 4-1, and the reflecting prism auxiliary positioning block 4 is fixedly connected to the reflecting prism bonding seat 3 by bolts through the reflecting prism auxiliary positioning block mounting hole 4-1 and the reflecting prism auxiliary positioning block connecting hole 3-4 on the bonding end 3-13 of the reflecting prism bonding seat.

[0053] The cold optical long strip reflecting prism 1 is made of JGS2 glass; there are two reflecting prism adhesive seat positioning pins 5 on each side; there are four reflecting prism adhesive seat connecting screws 6 on each side; the four reflecting prism adhesive seat connecting screws 6 on each side are arranged in a parallelogram.

[0054] Specifically:

[0055] The above-mentioned cold optical long strip reflecting prism clamping support structure comprises a cold optical long strip reflecting prism 1, a reflecting prism bracket 2, a reflecting prism bonding seat 3, a reflecting prism auxiliary positioning block 4, a reflecting prism bonding seat positioning pin 5, a reflecting prism bonding seat connecting screw 6 and a center positioning pin 7; the cold optical long strip reflecting prism 1 is made of JGS2 glass and is in a long trapezoidal shape; the reflecting prism bracket 2 is connected to the reflecting prism bonding seat 3 through the reflecting prism bonding seat connecting screw 6, and is positioned through the reflecting prism bonding seat positioning pin 5; the reflecting prism bonding seat 3 is connected to the cold optical long strip reflecting prism through low temperature glue The two ends of the mirror 1 are bonded; the auxiliary positioning block 4 of the reflecting prism is connected to the bonding end of the reflecting prism bonding seat 3; the center positioning pin 7 is installed in the corresponding center positioning pin hole on the reflecting prism bracket 2 and the reflecting prism bonding seat 3; the reflecting prism bracket 2 is processed in one piece; the reflecting prism bracket 2 includes a reflecting prism bonding seat mounting platform 2-1, a component connection hole 2-2, a reflecting prism bracket connection adjustment waist hole 2-3, a center positioning pin hole 2-4 and a reflecting prism bracket positioning pin hole 2-5; the reflecting prism bonding seat mounting platform is one at each end of the reflecting prism bracket 2, and is symmetrically arranged; the component connection hole 2 -2 is used for external connection of the component; the reflecting prism bracket connection adjustment waist hole 2-3 is used for installation connection of the reflecting prism adhesive seat 3; the central positioning pin hole 2-4 corresponds to the positioning pin hole on the reflecting prism adhesive seat; the reflecting prism bracket positioning pin hole 2-5 is used for positioning between the reflecting prism bracket and the reflecting prism adhesive seat; the reflecting prism adhesive seat 3 includes a reflecting prism adhesive seat outer ring flexible groove 3-1, a reflecting prism adhesive seat flexible wall 3-2, a reflecting prism adhesive seat inner ring flexible groove 3-3, a reflecting prism auxiliary positioning block connection hole 3-4, a reflecting prism adhesive seat adhesive wall 3-5, a reflecting prism Adhesive seat glue injection hole 3-6, reflecting prism adhesive seat positioning pin hole 3-7, glue injection through hole 3-8, reflecting prism adhesive seat center positioning pin hole 3-9, reflecting prism adhesive seat connecting screw hole 3-10, reflecting prism adhesive seat mounting end 3-11, flexible spacing groove 3-12, reflecting prism adhesive seat bonding end 3-13, reflecting prism adhesive seat outer ring flexible connecting section 3-14 and reflecting prism adhesive seat inner ring flexible connecting section 3-15; the reflecting prism auxiliary positioning block 4 is designed with a reflecting prism auxiliary positioning block mounting hole 4-1 for connecting the reflecting prism auxiliary positioning block and the reflecting prism adhesive seat.

[0056] The present invention uses low-temperature optical epoxy glue to bond and fix the cold optical long strip reflecting prism 1 on two symmetrical reflecting prism bonding seats 3. Before bonding, the two reflecting prism bonding seats 3 are installed on the reflecting prism bracket 2, and the two reflecting prism auxiliary positioning blocks 4 are installed at the corresponding positions of the reflecting prism bonding seats 3. The azimuth angles are adjusted. During the bonding process, the components are placed vertically, and one end of the cold optical long strip reflecting prism 1 is bonded first. After curing, the other end of the cold optical long strip reflecting prism 1 is bonded. An inner and outer double-layer annular flexible groove is designed on each reflecting prism bonding seat 3 to directly release the deformation and thermal stress caused by temperature changes at both ends of the cold optical long strip reflecting prism 1; each reflecting prism bonding seat 3 is divided into two layers, which are separated by a flexible structure in the middle; The bonding surface is designed on the bonding layer of the reflecting prism to bond with the reflecting prism; the mounting end of the reflecting prism bonding seat 3 is connected to the reflecting prism bracket 2 through four M3mm reflecting prism bonding seat connecting screws 6 which are evenly distributed 360° with the central positioning pin hole 7 as the center, and is positioned by two Φ3mm reflecting prism bonding seat positioning pins 5; the central positioning pin 7 is the central axis for adjusting the angle of the reflecting prism; the first thermal stress release is achieved through the bonding layer; the thermal stress release of the secondary reflecting prism is achieved by designing inner and outer double-layer annular flexible grooves on the reflecting prism bonding seat 3, providing axial and radial dual flexibility; the flexible structure solves the problem of severe deformation of the reflecting prism caused by the large temperature difference between processing and assembly and the actual working environment in the cold optical and low-temperature infrared optical system. For cold optical long strip reflecting prisms 1 of different sizes, the bonding flexibility of the cold optical long strip reflecting prism 1 can be adjusted by adjusting the block area and size of the reflecting prism bonding seat 3; for cold optical long strip reflecting prisms 1 of different materials, the bonding flexibility of the cold optical long strip reflecting prism 1 can be adjusted by adjusting the thickness of the flexible wall on the reflecting prism bonding seat 3 to achieve the deformation requirements of different lenses.

[0057] The cold optical long strip reflecting prism clamping support structure (reflecting prism bracket 2, reflecting prism bonding seat 3, reflecting prism auxiliary positioning block 4) is made of titanium alloy material, has good rigidity and toughness, and can well realize the processing of flexible structure.

[0058] The cold optical long strip reflecting prism clamping support structure is directly bonded to the cold optical long strip reflecting prism 1, which reduces the difficulty of processing and debugging and assembling the flexible support structure.

[0059] The low-temperature adhesives that have been verified to be applicable at 100K include: DW-3, DW-4, 2216, and 8217 low-temperature epoxy adhesives.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. For ordinary professional and technical personnel in the field, the specific technical solutions recorded in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions protected by the present invention.

Claims

1. A cold optical long reflective prism assembly with a clamping support structure, characterized in that: It comprises a cold optical long strip reflecting prism (1), a reflecting prism bracket (2), a reflecting prism bonding seat (3), a reflecting prism auxiliary positioning block (4), a central positioning pin (7), a reflecting prism bonding seat positioning pin (5) and a reflecting prism bonding seat connecting screw (6); The reflecting prism bracket (2) is an integrated part, comprising a bottom plate and two reflecting prism adhesive seat mounting platforms (2-1) vertically arranged at both ends of the bottom plate; the bottom plate is provided with a component connection hole (2-2) for external connection; The reflecting prism bonding seat (3) is an integral piece, comprising a reflecting prism bonding seat bonding end (3-13) and a reflecting prism bonding seat mounting end (3-11), the two being partially fixedly connected by a connecting plate to form a flexible spacing groove (3-12) between the two; A reflective prism adhesive seat glue injection hole (3-6) is provided on the adhesive end (3-13) of the reflective prism adhesive seat; a reflective prism adhesive seat adhesive wall (3-5), a reflective prism adhesive seat inner ring flexible groove (3-3), a reflective prism adhesive seat flexible wall (3-2) and a reflective prism adhesive seat outer ring flexible groove (3-1) are sequentially provided on the periphery of the reflective prism adhesive seat glue injection hole (3-6) from the inside to the outside; A reflective prism adhesive seat inner ring flexible connecting section (3-15) is provided between the outer wall of the reflective prism adhesive seat adhesive wall (3-5) and the inner wall of the reflective prism adhesive seat flexible wall (3-2); A reflective prism bonding seat outer ring flexible connecting section (3-14) is provided between the outer wall of the reflective prism bonding seat flexible wall (3-2) and the outer wall of the reflective prism bonding seat outer ring flexible groove (3-1); The reflective prism adhesive seat mounting end (3-11) is provided with a glue injection through hole (3-8) corresponding to the reflective prism adhesive seat glue injection hole (3-6); The central positioning pin (7) preliminarily positions the reflective prism bracket (2) and the reflective prism bonding seat mounting end (3-11); The reflecting prism auxiliary positioning block (4) is a right-angle piece, fixedly connected to the inner wall of the bonding end (3-13) of the reflecting prism bonding seat, and its right-angle side wall abuts against the right-angle part of the cold optical long strip reflecting prism (1); The reflecting prism bonding seat positioning pin (5) further positions the reflecting prism bracket (2) and the reflecting prism bonding seat mounting end (3-11); The reflecting prism bonding seat connecting screws (6) finally connect the reflecting prism bracket (2) and the reflecting prism bonding seat mounting end (3-11); The inner walls of the reflecting prism bonding seat bonding ends (3-13) of the two reflecting prism bonding seat mounting platforms (2-1) are respectively bonded to the end surfaces on both sides of the cold optical long strip reflecting prism (1) by glue.

2. The cold optical long reflective prism assembly with a clamping support structure according to claim 1, characterized in that: The two reflecting prism bonding seat mounting platforms (2-1) of the reflecting prism bracket (2) are both provided with a central positioning pin hole (2-4), a reflecting prism bracket positioning pin hole (2-5) and a reflecting prism bracket connection adjustment waist hole (2-3); A connecting hole (3-4) for a reflecting prism auxiliary positioning block is also provided on the bonding end (3-13) of the reflecting prism bonding seat; The reflective prism adhesive seat mounting end (3-11) is provided with a reflective prism adhesive seat center positioning pin hole (3-9) corresponding to the center positioning pin hole (2-4), a reflective prism adhesive seat positioning pin hole (3-7) corresponding to the reflective prism bracket positioning pin hole (2-5), and a reflective prism adhesive seat connecting screw hole (3-10) corresponding to the reflective prism bracket connecting adjustment waist hole (2-3); The center positioning pin (7) passes through the center positioning pin hole (3-9) and the center positioning pin hole (2-4) of the reflective prism bonding seat to preliminarily position the reflective prism bracket (2) and the reflective prism bonding seat (3); The reflecting prism bonding seat positioning pin (5) passes through the reflecting prism bonding seat positioning pin hole (3-7) and the reflecting prism bracket positioning pin hole (2-5) to further position the reflecting prism bracket (2) and the reflecting prism bonding seat (3); The reflecting prism bonding seat connecting screw (6) passes through the reflecting prism bonding seat connecting screw hole (3-10) and the reflecting prism bracket connecting adjustment waist hole (2-3) to finally connect the reflecting prism bracket (2) and the reflecting prism bonding seat (3).

3. The cold optical long reflective prism assembly with a clamping support structure according to claim 1 or 2, characterized in that: The reflective prism auxiliary positioning block (4) is provided with a reflective prism auxiliary positioning block mounting hole (4-1), and the reflective prism auxiliary positioning block (4) is fixedly connected to the reflective prism bonding seat (3) by means of bolts through the reflective prism auxiliary positioning block mounting hole (4-1) and the reflective prism auxiliary positioning block connecting hole (3-4) on the reflective prism bonding seat bonding end (3-13).

4. The cold optical long reflective prism assembly with a clamping support structure according to claim 3, characterized in that: The cold optical long strip reflecting prism (1) is in the shape of a long strip trapezoid.

5. The cold optical long reflective prism assembly with a clamping support structure according to claim 4, characterized in that: The cold optical long strip reflecting prism (1) is made of JGS2 glass.

6. The cold optical long reflective prism assembly with a clamping support structure according to claim 5, characterized in that: There are two positioning pins (5) for the reflective prism bonding seat on each side.

7. The cold optical long reflective prism assembly with a clamping support structure according to claim 6, characterized in that: There are four connecting screws (6) for the reflective prism bonding seat on each side.

8. The cold optical long reflective prism assembly with a clamping support structure according to claim 7, characterized in that: The four reflective prism bonding seat connecting screws (6) on each side are arranged in a parallelogram shape.

9. The cold optical long reflective prism assembly with a clamping support structure according to claim 8, characterized in that: Each of the reflecting prism auxiliary positioning blocks (4) is fixedly connected to the inner wall of the reflecting prism bonding end (3-13) via three bolts.

10. The cold optical long reflective prism assembly with a clamping support structure according to claim 9, characterized in that: The glue is optical epoxy glue; The reflecting prism bracket (2), the reflecting prism bonding seat (3) and the reflecting prism auxiliary positioning block (4) are all made of titanium alloy material.

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