Method, system and device for butt-joint installation and adjustment of tracking frame and coupling box body

By using a reference mirror with a central crosshair and grid lines during the docking process between the tracking frame and the coupling box, combined with a theodolite and a gantry crane, the problem of establishing the optical path docking reference was solved, achieving high-precision optical axis alignment and pupil position coincidence, simplifying the transfer of optical reference, and improving the assembly accuracy and reliability.

CN121115318APending Publication Date: 2025-12-12AEROSPACE SCI & IND MICROELECTRONICS SYST INST CO LTD
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Patent Information

Application Number
CN202511660466.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

In the existing technology, a common docking reference cannot be established during the optical path docking process between the tracking frame and the coupling box, resulting in insufficient accuracy in the alignment of the optical axis and the position of the pupil. Furthermore, the transmission of the optical reference is complex and the adjustment accuracy is poor.

Method used

A reference mirror with a central crosshair and equally spaced grid lines is used, combined with a theodolite and a gantry crane. Optical path docking reference is established by combining optical measurement and mechanical positioning, and high-precision docking is achieved through guide pins and fine-tuning attitude.

Benefits of technology

It improves the accuracy and efficiency of optical axis alignment, reduces reliance on complex automated equipment, ensures visualization and quantitative control of the assembly and adjustment process, and improves docking accuracy and reliability.

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Abstract

The invention discloses a tracking frame and coupling box butt joint assembling and adjusting method, which belongs to the technical field of precision optical assembling and adjusting, and comprises the following steps: S1, preparing a tracking frame Kude optical path assembling and adjusting reference mirror, a coupling box optical path assembling and adjusting reference mirror, a butt joint reference mirror, a theodolite, a guide pin and a gantry crane; s2, the tracking frame is in butt joint with the coupling box body, and a benchmark is established; s3, the tracking frame and the coupling box body are separated, and installation and adjustment of internal light paths are carried out respectively; s4, before a tracking frame Kuder optical path is installed and adjusted, a butt joint reference mirror is installed on the back face of a first reflecting mirror in the Kuder mirror set; s5, using a theodolite to establish a light path butt joint reference of the tracking frame and the coupling box body; s6, a guide pin is installed on the butt joint face of the coupling box body; and S7, finely adjusting the posture of the tracking frame to complete butt joint. According to the invention, the problem of establishment of the installation and adjustment reference and the butt joint reference in the butt joint process of the tracking frame and the coupling box body is effectively solved, optical reference transmission is simplified, and meanwhile, the butt joint installation and adjustment precision is ensured.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precision optical assembly and adjustment, and particularly relates to a tracking frame and coupling box docking assembly and adjustment method, system and device. BACKGROUND

[0002] The tracking frame and the coupling box are important components in laser equipment, and a light guide lens is arranged in each of the tracking frame and the coupling box to realize light path folding and emission direction adjustment. The tracking frame and the coupling box are two independent subsystems, and are fixed together by mechanical positioning pins and bolts, and the middle light transmission part is connected by a bellows.

[0003] The Kude light path is arranged on the tracking frame, and the adjustment light path is arranged in the coupling box, and the docking assembly and adjustment of the two mainly realize the coincidence of the light axis direction and the pupil position of the two light paths. Since the tracking frame and the coupling box are in face-to-face form during the light path docking process, and the light transmission space of the two is narrow, it is impossible to achieve precise docking by erecting a common reference in the middle. Therefore, how to establish a common docking reference so as to effectively represent the light axis direction and the pupil position becomes a key problem of docking.

[0004] A fiber nutation coupling design method of a nutation-free mirror applied to space optical communication is disclosed in Chinese patent application document with publication number CN115291331A and publication date November 4, 2022, which is characterized in that it utilizes the pre-aiming mirror, the fine tracking fast mirror and the detector in the space optical communication system to design a cooperative working method to improve the fiber coupling efficiency, and the specific steps include: S1. According to the optical system, a mapping relationship between the detector coordinates and the pre-aiming mirror is established; S2. Calibration of the conversion relationship between the fine tracking fast mirror and the pre-aiming mirror; S3. Relationship between the camera light spot coordinate transformation and the pre-aiming mirror is established; S4. Small amplitude adjustment of the fiber coupling effect by adjusting the communication center point; S5. The communication center point coordinates are modified at a certain time interval, and the corresponding pre-aiming mirror angle is issued at the same time, so as to ensure that the emission branch light path angle is not changed, and the received power under different center point coordinates is obtained through the received fiber power; S6. The next center point is taken as a new communication center point, and steps S4 and S5 are repeated until a satisfactory fiber coupling efficiency is obtained.

[0005] The fiber nutation coupling design method of the nutation-free mirror applied to space optical communication disclosed in the patent application document avoids additional nutation actuators and ensures the function. However, the optical reference transmission is relatively complex, and the adjustment precision is poor. SUMMARY

[0006] The present application provides a tracking frame and coupling box docking method, system and device to overcome the defects of the prior art, effectively solves the docking process of the tracking frame and the coupling box, and establishes the installation and adjustment reference and the docking reference, simplifies the optical reference transmission, and ensures the docking accuracy.

[0007] The present application is realized by the following technical solutions: A tracking frame and coupling box docking method, comprising the following steps: S1, preparing a tracking frame Kude optical path installation and adjustment reference mirror, a coupling box optical path installation and adjustment reference mirror, a docking reference mirror, a theodolite, a guide pin and a crane; S2, docking the tracking frame and the coupling box, installing the tracking frame Kude optical path installation and adjustment reference mirror on the tracking frame, installing the coupling box optical path installation and adjustment reference mirror in the coupling box, and establishing the reference; S3, separating the tracking frame and the coupling box, and respectively performing the internal optical path installation and adjustment work; S4, before the Kude optical path installation and adjustment of the tracking frame, installing the docking reference mirror on the back of the first reflecting mirror in the Kude mirror group, and making the center cross line on the mirror surface of the docking reference mirror consistent with the pupil optical axis of the installation and adjustment reference of the first reflecting mirror in the Kude mirror group; S5, based on the internal optical path installation and adjustment reference of the coupling box, using the theodolite to establish the optical path docking reference of the tracking frame and the coupling box; S6, installing the guide pin for docking the tracking frame at the docking surface of the coupling box; S7, hoisting the tracking frame by the crane and landing on the docking surface of the coupling box, observing the optical axis pointing deviation and the pupil position deviation of the theodolite at the docking reference and the Kude optical path installation and adjustment reference mirror of the tracking frame, and adjusting the attitude of the tracking frame to complete the docking.

[0008] In the step S1, the tracking frame Kude optical path installation and adjustment reference mirror, the coupling box optical path installation and adjustment reference mirror and the docking reference mirror are all engraved with a center cross line, the line width is 0.05 mm, and 0.2 mm equidistant grid lines are arranged around the center position.

[0009] One side of the docking reference mirror close to the first reflecting mirror in the Kude mirror group is coated with a full transparent film, and the other side of the docking reference mirror is coated with a full reflection film.

[0010] A reference mirror system for tracking frame and coupling box docking adjustment, characterized by: including a tracking frame Kude light path adjustment reference mirror with azimuth, pitch and two-dimensional translation, a coupling box light path adjustment reference mirror and a docking reference mirror, the tracking frame Kude light path adjustment reference mirror, the coupling box light path adjustment reference mirror and the docking reference mirror are all engraved with a center cross line and an equidistant grid line around the center cross line, the Kude light path adjustment reference mirror is used to establish the adjustment reference of the internal light path of the tracking frame, the coupling box light path adjustment reference mirror is used to establish the adjustment reference of the internal light path of the coupling box, and the docking reference mirror is used to transfer and characterize the Kude light path reference when the light paths are docked.

[0011] The line width of the center cross line is 0.05mm, and the equidistant grid line is 0.2mm.

[0012] A tracking frame and coupling box docking adjustment device, characterized by: including a theodolite, a guide pin and a crane, the theodolite is used to establish a light path docking reference, the guide pin is installed on the coupling box docking surface, and the guide pin is used to guide the tracking frame to fall into position, and the crane is used to hoist the tracking frame.

[0013] The bottom of the tracking frame is provided with a docking hole for the docking of the guide pin.

[0014] A fine adjustment method for the light path docking precision of a tracking frame and a coupling box, characterized by the following steps: a. Hoist the tracking frame to the coupling box docking surface; b. Observe the optical axis deviation and pupil position deviation of the docking reference mirror through the theodolite; c. Fine adjust the tracking frame attitude until the deviation meets the requirements.

[0015] In the step c, the fine adjustment of the tracking frame attitude means that the center cross line and the equidistant grid line of the docking reference mirror are visually aimed and deviation confirmed through the theodolite to complete the fine adjustment of the tracking frame.

[0016] A quality control method for the docking adjustment of a tracking frame and a coupling box, characterized by the following steps: Step 1: Establish an adjustment reference in the structural docking stage; Step 2: Use the docking reference mirror to maintain the consistency of the optical axis and the pupil in the light path adjustment stage; Step 3: Complete the docking control through the theodolite and the guide pin in the docking stage.

[0017] The beneficial effects of the present application mainly lie in the following aspects: Firstly, compared with the prior art, the present application effectively solves the problems of establishing the adjustment reference and the docking reference in the docking process of the tracking frame and the coupling box, simplifies the transfer of the optical reference, and at the same time ensures the precision of the docking adjustment. Secondly, the present application effectively overcomes the cumulative error caused by the reference mirror blur in the traditional method by etching the center cross line on the reference mirror and arranging the equidistant grid lines around the center position, realizes the visualization and quantitative control of the assembling and adjusting process, and greatly improves the accuracy and reliability of the aiming and interpretation.

[0018] Thirdly, the present application cleverly solves the problem of mutual interference between the incident light and the reflected light in the process of the reference light path transmission by coating the full transmission film on one side of the first mirror in the coupling reference mirror group and coating the full reflection film on the other side of the coupling reference mirror, ensures that the reference light path can penetrate and return along the original path without interference, and thus significantly improves the accuracy and efficiency of the optical axis alignment. Fourthly, the line width of the center cross line is 0.05mm and the equidistant grid line is 0.2mm, which provides the optimal size reference for high-precision visual aiming, improves the resolution to the maximum while ensuring the clarity, and the specific parameter combination is the best balance point verified by practice, which creatively unifies the quantitative standard of the assembling and adjusting reference, and makes the reference transmission between different components have high consistency and repeatability. Fifthly, the present application realizes the active docking of high precision by combining optical measurement with mechanical positioning and using the optical reference to guide the mechanical adjustment.

[0019] Sixthly, the present application comprises the following steps: a, hoisting the tracking frame to the coupling box docking surface; b, observing the optical axis pointing deviation and the pupil position deviation of the docking reference mirror through the theodolite; and c, fine-tuning the tracking frame posture until the deviation meets the requirements.

[0020] Seventhly, the present application realizes the fine quality management of the whole process and the stages by clearly dividing the whole assembling and adjusting process into three stages of structure docking, optical path assembling and adjusting and final docking, and setting up clear quality control nodes for each stage.

[0021] Eighthly, the present application preposes the quality control in each link of the assembling and adjusting process instead of only focusing on the final result, so that the deviation of the preposed process can be found and corrected in time, and the one-time success rate and the overall quality of the final optical path docking are systematically guaranteed from the process. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further specifically described below in combination with the drawings and specific embodiments of the present application: Figure 1 It is a schematic diagram of the tracking frame and the coupling box docking of the present application; Marked in the figure: 1, tracking frame, 2, coupling box, 3, theodolite, 4, the first block of mirrors. DETAILED DESCRIPTION

[0023] Example 1 Referring to Figure 1 A tracking frame and coupling box docking method, comprising the following steps: S1, prepare tracking frame Kude optical path alignment reference mirror, coupling box optical path alignment reference mirror, docking reference mirror, theodolite, guide pin and flight crane; S2, the tracking frame 1 and the coupling box 2 are docked, the tracking frame Kude optical path alignment reference mirror is installed on the tracking frame 1, the coupling box optical path alignment reference mirror is installed in the coupling box 2, and the reference is established; S3, separate the tracking frame 1 and the coupling box 2, and respectively perform internal optical path alignment work; S4, before the tracking frame Kude optical path alignment, the docking reference mirror is installed on the back of the first mirror 4 in the Kude mirror group, and the center cross line on the mirror surface of the docking reference mirror is kept consistent with the pupil optical axis of the Kude mirror group alignment reference; S5, based on the coupling box internal optical path alignment reference, the theodolite 3 is used to establish the tracking frame 1 and the coupling box 2 optical path docking reference; S6, the guide pin for docking the tracking frame 1 is installed at the docking surface of the coupling box 2; S7, the tracking frame 1 is hoisted by the flight crane and falls to the docking surface of the coupling box 2, the optical axis pointing deviation and the pupil position deviation of the theodolite 3 at the docking reference and the tracking frame Kude optical path alignment reference mirror are observed, and the attitude of the tracking frame 1 is adjusted to complete the docking.

[0024] This embodiment is the most basic implementation, compared with the prior art, the alignment reference and the establishment of the docking reference in the docking process of the tracking frame 1 and the coupling box 2 are effectively solved, the optical reference transmission is simplified, and the docking accuracy is ensured. Example 2 Referring to Figure 1 A tracking frame and coupling box docking method, comprising the following steps: S1, prepare tracking frame Kude optical path alignment reference mirror, coupling box optical path alignment reference mirror, docking reference mirror, theodolite, guide pin and flight crane; S2, the tracking frame 1 and the coupling box 2 are docked, the tracking frame Kude optical path alignment reference mirror is installed on the tracking frame 1, the coupling box optical path alignment reference mirror is installed in the coupling box 2, and the reference is established; S3, separate the tracking frame 1 and the coupling box 2, and respectively perform internal optical path alignment work; S4, before the tracking frame Kude light path adjustment, the first block of mirror 4 back in the Kude mirror group installed butt joint reference mirror, and make the center cross line on the mirror surface of butt joint reference mirror and Kude mirror group in the first block of mirror 4 adjustment reference pupil optical axis consistent; S5, based on the light path adjustment reference in the coupling box, use the theodolite 3 to establish the tracking frame 1 and the light path docking reference of the coupling box 2; S6, install the guide pin for docking the tracking frame 1 at the docking surface of the coupling box 2; S7, through the flight crane hoisting tracking frame 1 and falling to the docking surface of the coupling box 2, observe the deviation of the optical axis and the position deviation of the pupil of the theodolite 3 at the docking reference and the Kude light path adjustment reference mirror of the tracking frame, and adjust the attitude of the tracking frame 1 to complete the docking.

[0025] In the step S1, the center cross line is engraved on the Kude light path adjustment reference mirror of the tracking frame, the light path adjustment reference mirror of the coupling box and the docking reference mirror, the line width is 0.05mm, and the 0.2mm equidistant grid lines are arranged around the center position.

[0026] The embodiment is a preferred embodiment, by etching the center cross line on the reference mirror, and arranging the equidistant grid lines around the center position, the cumulative error caused by the reference blur in the traditional method is effectively overcome, the visualization and quantitative control of the adjustment process are realized, and the accuracy and reliability of the aiming and interpretation are greatly improved.

[0027] Embodiment 3 Referring to Figure 1 A docking adjustment method for a tracking frame and a coupling box, comprising the following steps: S1, prepare the Kude light path adjustment reference mirror of the tracking frame, the light path adjustment reference mirror of the coupling box, the docking reference mirror, the theodolite, the guide pin and the flight crane; S2, dock the tracking frame 1 and the coupling box 2, install the Kude light path adjustment reference mirror on the tracking frame 1, install the light path adjustment reference mirror of the coupling box in the coupling box 2, and establish the reference; S3, separate the tracking frame 1 and the coupling box 2, and perform the internal light path adjustment work respectively; S4, before the tracking frame Kude light path adjustment, the first block of mirror 4 back in the Kude mirror group installed butt joint reference mirror, and make the center cross line on the mirror surface of butt joint reference mirror and Kude mirror group in the first block of mirror 4 adjustment reference pupil optical axis consistent; S5, based on the light path adjustment reference in the coupling box, use the theodolite 3 to establish the tracking frame 1 and the light path docking reference of the coupling box 2; S6, install the guide pin for docking the tracking frame 1 at the docking surface of the coupling box 2; S7, the tracking frame 1 is hoisted by the hangar and falls to the coupling box 2 butt joint surface, the light axis pointing deviation and the pupil position deviation of the tracking frame Kude light path installation and adjustment reference mirror and the theodolite 3 at the butt joint reference are observed, and the attitude of the tracking frame 1 is fine adjusted to complete the butt joint.

[0028] Preferably, in the step S1, the tracking frame Kude light path installation and adjustment reference mirror, the coupling box light path installation and adjustment reference mirror and the butt joint reference mirror are all engraved with central cross lines, the line width is 0.05mm, and 0.2mm equidistant grid lines are arranged around the central position.

[0029] The butt joint reference mirror is coated with a full transmission film on one side close to the first reflecting mirror 4 in the Kude mirror group, and a full reflection film on the other side.

[0030] The embodiment is another preferred embodiment, the butt joint reference mirror is coated with a full transmission film on one side close to the first reflecting mirror 4 in the Kude mirror group, and a full reflection film on the other side, which ingeniously solves the problem of mutual interference between incident light and reflected light in the process of reference light path transmission, ensures that the reference light path can penetrate and return along the original path without interference, and thus significantly improves the accuracy and efficiency of the optical axis alignment. Embodiment 4 Referring to Figure 1 A reference mirror system for tracking frame and coupling box butt joint installation and adjustment, comprising a tracking frame Kude light path installation and adjustment reference mirror with azimuth, pitch and two-dimensional translation, a coupling box light path installation and adjustment reference mirror and a butt joint reference mirror, the tracking frame Kude light path installation and adjustment reference mirror, the coupling box light path installation and adjustment reference mirror and the butt joint reference mirror are all engraved with central cross lines and equidistant grid lines around the central cross lines, the Kude light path installation and adjustment reference mirror is used to establish the installation and adjustment reference of the internal light path of the tracking frame 1, the coupling box light path installation and adjustment reference mirror is used to establish the installation and adjustment reference of the internal light path of the coupling box 2, and the butt joint reference mirror is used to transmit and characterize the Kude light path reference when the light paths are butt jointed.

[0031] The line width of the central cross line is 0.05mm, and the equidistant grid line is 0.2mm.

[0032] The embodiment is another preferred embodiment, the line width of the central cross line is 0.05mm, and the equidistant grid line is 0.2mm, which provides an optimal size reference for high-precision visual aiming, maximizes the resolution while ensuring clarity, and is the best balance point verified by practice, which creatively unifies the quantitative standard of installation and adjustment reference, and makes the reference transmission between different components highly consistent and repeatable. Referring to Figure 1A docking device for a tracking frame and a coupling box, comprising a theodolite 3, a guide pin and a crane, the theodolite 3 is used to establish a light path docking reference, the guide pin is installed on the docking surface of the coupling box 2, and the guide pin is used to guide the positioning of the tracking frame 1, and the crane is used to hoist the tracking frame 1.

[0033] The bottom of the tracking frame 1 is provided with a docking hole for the guide pin.

[0034] The docking device of the embodiment is another preferred embodiment, which combines optical measurement and mechanical positioning, uses optical reference to guide mechanical adjustment, and realizes high-precision active docking.

[0035] Embodiment 6 Referring to Figure 1 A fine adjustment method for the light path docking precision of a tracking frame and a coupling box, comprising the following steps: a. Hoist the tracking frame 1 to the docking surface of the coupling box 2; b. Observe the optical axis pointing deviation and pupil position deviation of the docking reference mirror through the theodolite 3; c. Fine adjust the posture of the tracking frame 1 until the deviation meets the requirements.

[0036] In the step c, the fine adjustment of the posture of the tracking frame 1 is to complete the fine adjustment of the tracking frame 1 through visual aiming and deviation confirmation of the center cross line and the equidistant grid line of the docking reference mirror by the theodolite 3.

[0037] The embodiment is another preferred embodiment, a. Hoist the tracking frame 1 to the docking surface of the coupling box 2; b. Observe the optical axis pointing deviation and pupil position deviation of the docking reference mirror through the theodolite 3; c. Fine adjust the posture of the tracking frame 1 until the deviation meets the requirements, compared with the prior art, the fine adjustment is performed by directly observing the scale line on the docking reference mirror through the theodolite 3, the abstract optical axis deviation is converted into a specific and visible image position deviation, the fine adjustment process becomes intuitive and controllable, the dependence on complex automatic equipment is greatly reduced, and high alignment precision is ensured.

[0038] Embodiment 7 Referring to Figure 1 A quality control method for the docking of a tracking frame and a coupling box, comprising the following steps: Step 1. Establish a docking reference in the structural docking stage; Step 2. Use the docking reference mirror to maintain the consistency of the optical axis and the pupil in the light path docking stage; Step 3. Complete the docking control through the theodolite 3 and the guide pin in the docking stage.

[0039] The embodiment is the best mode, by dividing the whole installation process into three stages of structure docking, optical path installation and final docking, and setting up clear quality control nodes for each stage, realizing fine quality management of the whole process and each stage.

[0040] By placing quality control in each link of the installation process, instead of only focusing on the final result, deviations in the previous process can be found and corrected in time, and the success rate and overall quality of the final optical path docking are systematically guaranteed. The installation reference process is as follows: 1. Place the coupling box 2 on the lifting support tool and level it; 2. Install the positioning pins arranged at 180° on the coupling box 2; 3. Install the Kothmann optical path installation reference mirror in front of the first mirror 4 in the Kothmann mirror group on the tracking frame 1, determine the optical axis direction and pupil position of the Kothmann optical path installation reference mirror through the two positioning pin holes and the ground plane, and the pupil position is represented by the center cross line of the Kothmann optical path installation reference mirror; 4. Hoist the tracking frame 1 by the lifting tool and the crane, check the levelness of the tracking frame 1 in the left-right direction, and if it does not meet the requirements, adjust it to the required range by the rose of the lifting tool; 5. Hoist the tracking frame 1 above the coupling box 2 and drop it onto the docking surface through the positioning pins; 6. Fasten the tracking frame 1 and the coupling box 2 by fasteners and tighten them to the required torque; 7. Set up the theodolite 3, align the theodolite 3 with the Kothmann optical path installation reference mirror, and make the center cross wire of the theodolite 3 coincide with the center cross line of the Kothmann optical path installation reference mirror, and keep the theodolite 3 stationary; 8. Remove the Kothmann optical path installation reference mirror; 9. Loosen the fasteners connecting the tracking frame 1 and the coupling box 2, and hoist the tracking frame 1 to separate it from the coupling box 2; 10. Install the coupling box installation reference mirror, adjust the coupling box optical path installation reference mirror by the theodolite 3, align the theodolite 3 with the coupling box optical path installation reference mirror, and make the center cross wire of the theodolite 3 coincide with the center cross line of the coupling box optical path installation reference mirror, to realize the bidirectional transfer of the optical axis direction and pupil position.

[0041] The Kothmann optical path installation process is as follows: 1. Hoist the tracking frame 1 onto the pad platform, level and fasten the tracking frame 1 with the level; 2. Reinstall the Kothmann optical path installation reference mirror; 3. Set up the theodolite 3, align the theodolite 3 with the Kothmann optical path installation reference mirror, and make the center cross wire of the theodolite 3 coincide with the center cross line of the Kothmann optical path installation reference mirror, and keep the theodolite 3 stationary; 4. Remove the collimating mirror adjustment reference mirror; 5. Install the mating reference mirror on the back of the first mirror 4 in the Coude lens group, and make the mating reference mirror point in the same direction as the collimating mirror adjustment reference optical axis and the same position as the pupil of the collimating mirror adjustment reference.

Claims

1. A method for docking and adjusting a tracking frame and a coupling housing, comprising the following steps: S1. Prepare the tracking frame, the optical path of the coupling box, the docking reference mirror, the theodolite, the guide pin, and the overhead crane; S2. Connect the tracking frame (1) to the coupling box (2), install the tracking frame Coulomb optical path adjustment reference mirror on the tracking frame (1), and install the coupling box optical path adjustment reference mirror inside the coupling box (2) to establish a reference. S3. Separate the tracking frame (1) and the coupling box (2) and perform internal optical path assembly and adjustment work respectively; S4. Before the Cood optical path of the tracking frame is installed and adjusted, a docking reference mirror is installed on the back of the first reflector (4) in the Cood mirror group, and the central crosshair on the mirror surface of the docking reference mirror is aligned with the optical axis of the pupil of the first reflector (4) in the Cood mirror group. S5. Based on the optical path assembly and adjustment reference inside the coupling box, use the theodolite (3) to establish the optical path docking reference between the tracking frame (1) and the coupling box (2); S6. Install guide pins for docking the tracking frame (1) at the docking surface on the coupling box (2); S7. The tracking frame (1) is hoisted by a crane and lowered to the docking surface of the coupling box (2). The optical axis pointing deviation and pupil position deviation of the theodolite (3) at the docking reference point and the tracking frame Kuder optical path adjustment reference mirror are observed. The attitude of the tracking frame (1) is finely adjusted to complete the docking.

2. The method for docking and adjusting a tracking frame and a coupling box according to claim 1, characterized in that: In step S1, the tracking frame, the coupling box, and the docking reference mirror are all engraved with a central crosshair with a line width of 0.05 mm, and are surrounded by 0.2 mm equally spaced grid lines.

3. A method for docking and adjusting a tracking frame and a coupling housing according to claim 1 or 2, characterized in that: The side of the docking reference mirror closest to the first reflector (4) in the Cood mirror group is coated with a fully transparent film, and the other side of the docking reference mirror is coated with a fully reflective film.

4. A reference mirror system for docking and adjusting a tracking frame and a coupling housing, characterized in that: The system includes a tracking frame Kud optical path assembly reference mirror with azimuth, pitch and two-dimensional translation, a coupling box optical path assembly reference mirror and a docking reference mirror. The tracking frame Kud optical path assembly reference mirror, the coupling box optical path assembly reference mirror and the docking reference mirror are all engraved with a central crosshair and equally spaced grid lines around the central crosshair. The Kud optical path assembly reference mirror is used to establish the assembly reference of the optical path inside the tracking frame (1). The coupling box optical path assembly reference mirror is used to establish the assembly reference of the optical path inside the coupling box (2). The docking reference mirror is used to transmit and characterize the Kud optical path reference during optical path docking.

5. A reference mirror system for docking and adjusting a tracking frame and a coupling housing according to claim 4, characterized in that: The width of the central crosshair is 0.05 mm, and the spacing of the grid lines is 0.2 mm.

6. A device for docking and adjusting a tracking frame and a coupling box, characterized in that: The reference mirror system for docking and adjusting the tracking frame and the coupling box as described in claim 5 includes a theodolite (3), a guide pin and a crane. The theodolite (3) is used to establish the optical path docking reference. The guide pin is installed on the docking surface of the coupling box (2) and is used to guide the tracking frame (1) to be placed. The crane is used to lift the tracking frame (1).

7. The tracking frame and coupling box docking and adjustment device according to claim 6, characterized in that: The bottom of the tracking frame (1) has a docking hole for guide pin docking.

8. A method for fine-tuning the optical path alignment accuracy between a tracking frame and a coupling box, characterized in that, Includes the following steps: a. Hoist the tracking frame (1) to the mating surface of the coupling box (2); b. Observe the optical axis pointing deviation and pupil position deviation of the docking reference mirror using a theodolite (3); c. Fine-tune the attitude of the tracking frame (1) until the deviation meets the requirements.

9. The method for fine-tuning the optical path docking accuracy between the tracking frame and the coupling box according to claim 8, characterized in that: In step c, fine-tuning the attitude of the tracking frame (1) refers to visually aiming at the central crosshair and equally spaced grid lines of the docking reference mirror and confirming the deviation using a theodolite (3) to complete the fine-tuning of the tracking frame (1).

10. A quality control method for the docking and adjustment of a tracking frame and a coupling box, characterized in that, Includes the following steps: Step 1: Establish assembly and adjustment benchmarks during the structural docking stage; Step 2: During the optical path assembly and adjustment stage, use a docking reference mirror to maintain the consistency of the optical axis and the pupil; Step 3: During the docking phase, docking control is completed using the theodolite (3) and guide pins.

Citation Information

Patent Citations

  • Non-nutation mirror optical fiber nutation coupling design method applied to space optical communication

    CN115291331A