A curing test method and a curing test device for a special glue of a space capsule

Abstract

The present invention relates to the field of glue testing, and discloses a space capsule-specific glue curing test method and a curing test device. The key points of its technical solution are: a space capsule-specific glue curing test device, comprising a test platform, a bottom plate provided on the test platform, a glue application port and a detection port a provided on the bottom plate, and a glue application frame connected to the glue application port provided on the top of the bottom plate. The present invention avoids the problem of difficult cleaning caused by the use of a rigid film layer directly attached to the structural surface of the test device in the prior art. The overall structure of the present invention is compact, the operation is stable, the test process has a high degree of automation, and can truly restore the service state of the glue in the use environment. In addition, by applying glue to an independent test film, it can be directly rolled out after completing a round of testing to expose a new test section without cleaning the platform body, which completely solves the problems of difficult cleaning, low efficiency and platform damage, and significantly improves the practicality and engineering adaptability of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of glue testing, and in particular to a space capsule-specific glue curing testing method and a curing testing device. Background Art

[0002] The space capsule is a special, sealed environment that requires stable temperature, pressure, and humidity to ensure the safety of astronauts and the proper functioning of equipment within the capsule. The materials used within the capsule must exhibit exceptional stability and reliability, especially when it comes to bonding components and sealing the space. Glue, as a key material, must not only possess excellent bonding properties but also provide a reliable seal after curing to prevent the penetration of gases, moisture, and other harmful substances.

[0003] Inside a space capsule, equipment such as the water circulation system and life support system release a certain amount of water vapor during operation. Over time, this accumulation can lead to high humidity levels in localized areas. If glue, sealed for a long period of time, absorbs moisture or undergoes structural expansion in a humid environment, this can cause microcracks or pores in the cured film, creating tiny permeation channels and compromising its sealing performance. To ensure the glue's reliability in the space capsule environment, it is necessary to evaluate its sealing performance after the cured film is exposed to moisture, particularly by testing its air permeability.

[0004] However, in existing technologies, the cured glue film is typically very hard and adheres firmly to the coated material, making it particularly difficult to remove from porous materials. This makes it difficult to effectively clean and repeat the test after the air permeability test. Currently, chemical solvents, high-temperature treatments, or mechanical means are commonly used to remove the glue layer. However, these methods are not only inefficient and complex, but may also damage the test substrate or the device itself, thereby affecting the accuracy and repeatability of subsequent tests. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a space capsule-specific glue curing test method and curing test device, aiming to alleviate the above problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A space capsule-specific glue curing test device comprises a test platform, the test platform being provided with a bottom plate, the bottom plate being provided with a glue application port and an inspection port a, the top of the bottom plate being provided with a glue application frame communicating with the glue application port, the top of the bottom plate being provided with a cover plate, the cover plate being provided with an inspection port b communicating with the inspection port a, and further comprising:

[0008] A test film disposed on the top of the test platform, wherein the test film has a plurality of small holes;

[0009] a detection frame provided on top of the test platform;

[0010] A sleeve provided on the test platform and connected to the detection port a, wherein a micro-pressure sensor is provided in the sleeve;

[0011] A gluing shaft provided at the bottom of the detection frame;

[0012] A coating component, used for coating glue on the surface of the test film in the glue coating frame;

[0013] a humidifying component, used for atomizing liquid into the cover plate;

[0014] The detection component is used to form negative pressure at the detection port a, and the pressure change in the detection port a is tested by the micro-pressure sensor.

[0015] Preferably, the detection frame is located on the top of the cover plate, and the detection frame has a filling cavity, a humidification cavity, and a water source cavity;

[0016] The top of the test platform is connected to a connecting frame by bolts, the cover plate is slidably connected to the connecting frame, and an elastic member a is connected between the cover plate and the connecting frame, and the glue coating frame is fixed to the connecting frame.

[0017] Preferably, the humidifying component includes a humidifying part provided on the detection frame, the water inlet of the humidifying part is connected to the water source chamber, the atomizing port of the humidifying part is connected to the humidifying chamber, the bottom of the detection frame is connected to a plurality of elastic telescopic rods corresponding to the cover plate, the elastic telescopic rods have a hollow channel, which is connected to the humidifying chamber, and the top of the cover plate is provided with a humidifying port connected to the hollow channel.

[0018] Preferably, it further comprises a moving component provided between the test platform and the detection frame, for moving the position of the detection frame up and down;

[0019] The movable component includes a movable bracket connected to the detection frame, and the test platform is connected to an oil cylinder, and a telescopic shaft of the oil cylinder is connected to the movable bracket.

[0020] Preferably, the detection component includes a connecting rod connected to the movable bracket, the sleeve includes a fixed tube fixed on the detection port a, a piston slidably sleeved in the fixed tube is fixed on the connecting rod, and the micro-pressure sensor is fixed on the piston.

[0021] Preferably, when the moving component moves the detection frame downward to a preset position, the coating component can move the glue coating shaft along the length direction of the glue coating frame and generate a rotational motion to coat the glue on the surface of the test film in the glue coating frame;

[0022] The coating component includes a connecting frame connected to the bottom of the detection frame, two connecting rods are rotatably connected to the connecting frame, an elastic member b is connected between the connecting rod and the connecting frame, the spacing between the two connecting rods is larger than the glue coating port and smaller than the glue coating frame, the bottom of the connecting rod is connected to a roller through a bearing, the outer surface of the roller is in contact with the upper surface of the glue coating frame, a telescopic bracket is connected to one side of the connecting frame, the telescopic end of the telescopic bracket is connected to a slide rail, a glue coating box is slidably connected to the slide rail, the glue coating shaft is rotatably connected to the bottom of the glue coating box, a liquid outlet is provided at the bottom of the glue coating box, a connecting shaft fixed to the roller is rotatably connected to the glue coating box, and a transmission chain is connected between the connecting shaft and the glue coating shaft.

[0023] Preferably, the coating component also includes a glue box connected to the filling cavity, the glue box is connected to a glue inlet pipe, a one-way valve is provided on the top of the glue box, a push plate is provided in the glue box, the telescopic end of the telescopic bracket is connected to a push rod connected to the push plate, one side of the glue box is connected to a hose, and the other end of the hose is connected to the glue coating box.

[0024] Preferably, the detection frame can rewind the test film when it moves back and forth up and down a preset number of times a, and the test film starts to be rolled up from the right end so that the new test film is placed in the glue coating frame;

[0025] Two winding shafts are rotatably connected to the test platform, and the two ends of the test film are respectively wound on the two winding shafts. A rack is connected to the movable bracket, and a transmission shaft is rotatably connected to the test platform. A gear a is connected to the transmission shaft, and a gear b adapted to the gear a is connected to the winding shaft. The transmission shaft is also connected to a gear c meshing with the rack. A ratchet mechanism is provided between the gear c and the transmission shaft, and the gear a is an incomplete gear.

[0026] Preferably, a hole-making roller is rotatably connected to the test platform, the hole-making roller is a round roller, and its outer wall has a plurality of conical thorns. One end of the test film is rolled up on the winding shaft on the left. The test film passes around the hole-making roller, passes through the test platform, reaches the gap between the bottom plate and the glue coating frame, passes through the gap between the cover plate and the bottom plate, and finally passes through the test platform again to be connected to the winding shaft on the right.

[0027] A curing plate is slidably connected to the connecting frame, a plurality of ultraviolet lamps are connected to the bottom of the curing plate, an elastic member c is connected between the curing plate and the connecting frame, a push opening is provided on the top of the curing plate, and a push bar adapted to the push opening is connected to one side of the glue coating box.

[0028] A method for testing the curing of glue for space capsules, using any of the above-described devices for testing the curing of glue for space capsules, wherein the glue comprises the following components: 43.0% polyurethane prepolymer, 8.0% acrylate monomer, 6.5% epoxy acrylate, 4.0% phenolic modified resin, 0.7% aerogel powder, 0.15% defoamer, 0.3% leveling agent, 1.3% photoinitiator, 0.1% antioxidant, 0.25% light stabilizer, and the balance being reactive diluent, further comprising the following steps:

[0029] Step 1: Pass the test film through the hole-making roller to form evenly distributed small holes. The test film passes through the gap between the bottom plate and the glue coating frame, and the gap between the cover plate and the bottom plate, and is connected to the left and right winding shafts.

[0030] Step 2: Inject the mixed glue into the filling cavity at the top of the detection frame, start the moving parts, drive the detection frame downward, make the glue coating shaft contact the test film, limit the connecting rod, and slide the glue coating box on the slide rail to realize the rotation and rolling of the glue coating shaft. During the rolling process of the glue coating shaft, the glue is continuously released through the liquid outlet to form the first layer of glue film. The detection frame is controlled to move back and forth a predetermined number of times a to seal the small holes of the test film layer by layer;

[0031] Step 3: When the glue box slides to the set position, the push bar drives the curing plate to move horizontally away from the glue coating area. When the glue box returns to the initial position, the curing plate returns under the action of the elastic member, and the ultraviolet lamp irradiates the applied glue to complete the UV curing.

[0032] Step 4: Move the cured film segment to the cover area, and the humidifying component continuously injects water mist into the cover through the humidifying port to create a stable high-humidity environment, simulating the aging conditions in the humid environment inside the space capsule;

[0033] Step 5: The test film continues to move to the corresponding areas of detection ports a and b. The piston is pulled down to form negative pressure, and the micro-pressure sensor monitors the air pressure in real time.

[0034] If the cured adhesive film on the film is well sealed, there will be no obvious pressure drop in the test cavity, indicating that the glue has excellent sealing performance;

[0035] If the film has micropores or degrades due to moisture absorption and expansion, a pressure drop will occur, reflecting its anti-permeation defects.

[0036] In summary, the present invention mainly has the following beneficial effects:

[0037] The present invention constructs an integrated testing device with automatic gluing, UV curing, winding, humidification and negative pressure detection functions, which can realize efficient, continuous and repeatable testing of the sealing performance (especially air permeability) of glue after curing.

[0038] This invention utilizes a continuous test film structure, coupled with an automatic winding mechanism, to automatically advance the testing process without the need for manual test film replacement. This avoids the inefficiencies and error accumulation associated with manual disassembly and cleaning, improving the automation and repeatability of the test. During the test process, the coating axis is controlled to uniformly apply the glue to the test film in multiple, small, and layer-by-layer increments. This effectively seals the pores layer by layer, enhancing the coating's density and sealing integrity while avoiding the collapse, contamination, and uncontrollable thickness issues associated with traditional one-time thick coating methods.

[0039] In the present invention, after the glue coating and curing are completed, the test film can enter a controlled humidification environment to simulate the impact of moisture, and then enter the detection area to undergo negative pressure detection. The leakage data is collected with the help of a micro-pressure sensor, thereby truly reflecting the anti-penetration ability of the glue in a high-humidity environment.

[0040] In particular, the present invention adopts a removable and replaceable continuous film structure, which avoids the cleaning difficulties caused by the use of a rigid film layer directly attached to the structural surface of the test device in the prior art. The overall structure of the present invention is compact, the operation is stable, the test process is highly automated, and it can truly restore the service state of the glue in the use environment. In addition, by applying glue to an independent test film, it can be directly rolled out after completing a round of testing to expose a new test section without cleaning the platform body. This completely solves the problems of difficult cleaning, low efficiency and platform damage, and significantly improves the practicality and engineering adaptability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0043] Figure 3 It is a schematic diagram of the connection frame structure of the present invention;

[0044] Figure 4 is another schematic diagram of the connection frame structure of the present invention;

[0045] Figure 5 It is a schematic structural diagram of a curing plate of the present invention;

[0046] Figure 6 It is a schematic structural diagram of the coating component of the present invention;

[0047] Figure 7 is another schematic diagram of the coating component structure of the present invention;

[0048] Figure 8 is a schematic cross-sectional view of the coating component structure of the present invention;

[0049] Figure 9 It is a schematic structural diagram of the glue coating box of the present invention;

[0050] Figure 10 is another schematic diagram of the glue coating box structure of the present invention;

[0051] Figure 11 It is a schematic diagram of the structure of the reel of the present invention;

[0052] Figure 12 It is a schematic structural diagram of the ratchet mechanism of the present invention;

[0053] Figure 13 It is a schematic structural diagram of the hole-making roller of the present invention.

[0054] Reference numerals:

[0055] 100, test platform; 101, bottom plate; 102, glue application port; 103, detection port a; 104, glue application frame; 105, cover plate; 106, detection port b; 107, test film; 108, detection frame; 109, sleeve; 110, micro-pressure sensor; 111, glue application shaft;

[0056] 200, connecting frame; 201, elastic member a; 202, humidifying member; 203, humidifying chamber; 204, elastic telescopic rod; 205, hollow channel; 206, humidifying port; 207, movable bracket; 208, oil cylinder; 209, packing chamber; 210, water source chamber;

[0057] 300, connecting rod; 301, fixed tube; 302, piston;

[0058] 400, connecting frame; 401, connecting rod; 402, elastic member b; 403, roller; 404, telescopic bracket; 405, slide rail; 406, glue box; 407, liquid outlet; 408, transmission chain; 409, glue tank; 410, glue inlet hose; 411, one-way valve; 412, push plate; 413, ejector rod; 414, hose; 415, connecting shaft;

[0059] 500, reel; 501, rack; 502, transmission shaft; 503, gear a; 504, gear b; 505, gear c; 506, ratchet mechanism;

[0060] 600, hole-making roller; 601, curing plate; 602, ultraviolet lamp; 603, elastic member c; 604, push port; 605, push bar. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0062] refer to Figures 1-13 A space capsule-specific glue curing test device includes a test platform 100, which is provided with a base plate 101. The base plate 101 is provided with a glue application port 102, a wet port, and a detection port a103. A glue application frame 104 communicating with the glue application port 102 and a cover plate 105 communicating with the wet port are provided on the top of the base plate 101. The cover plate 105 is provided with a detection port b106 communicating with the detection port a103. A predetermined distance is provided between the glue application frame 104, the cover plate 105, and the base plate 101. The glue application frame 104 is fixed above the base plate 101, and the cover plate 105 is slidable up and down relative to the base plate 101. The device further includes:

[0063] A test film 107 is provided on the top of the test platform 100. The test film 107 is located at a predetermined interval and has a plurality of small holes. The diameter of the small holes is 0.2 mm to 0.6 mm, preferably 0.4 mm.

[0064] A detection frame 108 is provided on the top of the test platform 100. The detection frame 108 is located on the top of the cover plate 105. The detection frame 108 has multiple cavities, one of which is a filling cavity 209, one of which is a humidification cavity 203, and one of which is a water source cavity 210.

[0065] A sleeve 109 is provided on the test platform 100 and communicates with the detection port a103. A micro-pressure sensor 110 is provided in the sleeve 109.

[0066] The gluing shaft 111 is provided at the bottom of the detection frame 108. The gluing shaft 111 corresponds to the position of the detection port a103. The length of the gluing shaft 111 is shorter than the width of the detection port a103.

[0067] The coating component provided at the bottom of the detection frame 108 is used to apply the glue in the filling cavity 209 to the surface of the test film 107 in the glue coating frame 104 through the glue coating shaft 111;

[0068] The humidifying component is provided between the humidifying chamber 203 and the cover plate 105 and is used to atomize the liquid in the water source chamber 210 into the cover plate 105;

[0069] The detection component provided at the bottom of the test platform 100 is used to generate negative pressure on the detection port a103 through the sleeve 109, and the pressure change in the detection port a103 is tested by the micro-pressure sensor 110;

[0070] It also includes a moving component provided between the test platform 100 and the detection frame 108 for moving the position of the detection frame 108 up and down;

[0071] When the moving component moves the detection frame 108 downward to a preset position, the coating component can move the coating shaft 111 along the length direction of the coating frame 104 and generate a rotational motion to coat the glue on the surface of the test film 107 in the coating frame 104;

[0072] The detection frame 108 can rewind the test film 107 when it moves back and forth up and down a preset number of times a. The test film 107 starts to rewind from the right end, so that the new test film 107 is placed in the glue coating frame 104.

[0073] By setting up the test film 107, the operator can insert the test film 107 at predetermined intervals. The base plate 101 is positioned below the test film 107, while the cover plate 105 and the glue coating frame 104 are positioned above the test film 107. The film has multiple small holes. Specifically, the operator can pre-store the glue to be cured for sealing (air permeability) testing in the filling chamber 209. The glue in this chamber can flow toward the glue coating shaft 111. During testing, the moving components can be used to move the inspection frame 108 linearly downward. The inspection frame 108 is moved toward the testing platform 100. After the glue coating shaft 111 at its bottom moves into the glue coating frame 104, the horizontal height of the glue coating shaft 111 is fixed, allowing the glue coating shaft 111 to contact the surface of the test film 107. The moving components continue to move the inspection frame 108 downward. After the horizontal height of the glue coating shaft 111 is limited, the glue coating shaft 111 begins to move horizontally along the length of the glue coating frame 104. During this process, the glue in the filling chamber 209 is transported and the glue-spreading shaft 111 is rotated to evenly apply the glue to the test film 107 , covering and filling the small holes on the film to close the small holes.

[0074] However, since the glue has a certain fluidity, the small holes on the film may not be completely covered or closed when the coating is just completed. To this end, the present invention controls the detection frame 108 to move up and down in the vertical direction to a preset number of times a, so that the glue-coating shaft 111 forms a repeated rolling effect on the surface of the test film 107. The small holes of the test film 107 are sealed by multiple, small-scale, and multi-layer superimposed coating methods. During the test process, the glue in the filling chamber 209 is delivered in conjunction with the rolling of the glue-coating shaft 111. Only a thin layer of glue is applied during each movement, covering the surface of the test film 107 and gradually filling the small holes. Through the up and down reciprocating movement of the detection frame 108, the glue-coating shaft 111 re-contacts the surface of the film each time it falls back, and is coated again, thereby forming a layer-by-layer covering effect.

[0075] Compared to applying a large amount of glue all at once, this approach uses multiple, small, and multi-layer coatings to avoid excessive glue sinking or collapsing, reducing contamination around the pores. This improves the uniformity and controllable thickness of the adhesive layer, facilitating subsequent curing to form a dense film. This enhances the integrity of the pore seal, as each layer of glue naturally spreads and slowly penetrates the pore under the influence of gravity and surface tension, minimizing sealing defects caused by bubbles or impurities.

[0076] In the above description, after the test film 107 in the gluing frame 104 has undergone multiple repetitive gluing and curing processes, the test film 107 is slowly reeled in from its right end, allowing the glue-coated and cured sections and film sections to leave the gluing frame 104 area. Simultaneously, as the test film 107 moves, new, uncoated sections gradually enter the gluing frame 104 area, automatically replacing the film material, eliminating manual replacement and improving testing efficiency.

[0077] The coated and cured glue segment and test film 107 segment are moved to the cover plate 105 area, entering the humidification preparation phase. The humidification component draws liquid from the water source chamber 210, converts the liquid into fine water vapor through the atomization device, and injects it into the interior of the cover plate 105, exposing the glue-coated test film 107 surface to a controlled humidity environment.

[0078] The humidification process is a continuous process. This is because the cover plate 105 is much larger than the glue coating frame 104 in the length direction, and the moving distance of the test film 107 each time is equal to the length of the cover plate 105. In other words, during the film winding process, the entire section of the coated and cured test film 107 will completely enter the coverage area of the cover plate 105. In order to ensure that the cured film in the entire coverage area is under controlled humidity conditions, the humidification component needs to work continuously during the test process, continuously injecting atomized water vapor into the cavity of the cover plate 105, so that the surface of the film is in a high-humidity environment simulating a space capsule for a long time. By wetting the cured film, the actual moisture condition of the glue in a high-humidity sealed environment such as a space capsule is simulated, which is used to evaluate its sealing retention under humid conditions.

[0079] As the test progresses, the film segment subjected to humidification treatment eventually moves to the positions corresponding to the detection ports a103 and b106. The detection component applies negative pressure through the sleeve 109 at the bottom. The negative pressure formation process is a controllable gradual process, which avoids the impact of instantaneous pressure drop on the film layer and ensures the accuracy and repeatability of the test results. In the process of gradually establishing negative pressure, if the cured adhesive film formed on the surface of the test film 107 has micropores, unsealed defects or structural degradation caused by the humidification process, then under the action of the pressure difference, the remaining small holes or weak points will cause a small amount of leakage, resulting in the air pressure in the detection cavity being unable to stabilize, or a pressure drop in unit time. The micro-pressure sensor 110 will monitor the air pressure change data in the detection port a103 in real time to judge the sealing integrity of the film. On the contrary, if the sealing effect of the cured adhesive film is good, there is no obvious pressure drop even in a negative pressure environment, which indicates that the tested glue still has good anti-penetration performance and structural stability after being cured and treated in a humid environment.

[0080] In this invention, the continuous film can be combined with the system's automatic winding mechanism to achieve "test section completion → next section automatically positioned", eliminating the need for manual test piece replacement and making it suitable for long-term, continuous batch testing. In contrast, existing technologies require manual disassembly, cleaning, and rearrangement for each test, which is inefficient, error-prone, and detrimental to experimental reproducibility.

[0081] Using a continuous film allows the cured film section to sequentially undergo the following steps: a humidified environment (cover plate area 105); a negative pressure test (test port area); and finally, a rewinding area. This creates a controlled environment test path, allowing for dynamic observation of the film's sealing performance degradation under humidity, stress, and time, something that cannot be achieved with single-stage testing.

[0082] In the present invention, the same batch of glue is applied to multiple film segments and tested separately in order to evaluate the sealing performance stability and consistency of this batch of glue from multiple dimensions. Continuous multi-segment testing can reflect whether the performance of this batch of glue remains consistent during continuous use, which is an investigation of the stability of use. In real products, glue is not applied once and that’s it. Often the same batch of glue is used multiple times in different positions and on multiple parts. This platform can be used to verify whether the sealing performance of the same batch of glue is consistent at different coating time points, exposing material stability issues in advance. Compared with single-segment testing, the volatility of glue performance cannot be reflected. By applying multiple segments and multi-point testing of the same batch of glue, a set of sealing data can be obtained, and the average value, standard deviation, and confidence interval can be calculated to meet the test requirements.

[0083] By using a continuous film structure and multi-segment coating and segmented testing methods for the same batch of glue, not only is the test efficiency and automation level improved, but it can also achieve multi-dimensional and repeatable evaluation of the glue sealing performance under different usage sequences, controlled environments and dynamic stresses, ensuring the scientific nature and engineering applicability of the test results.

[0084] By designing an integrated testing platform 100 with automated gluing, curing, winding, humidity simulation, and negative pressure detection capabilities, the present invention addresses existing issues such as low efficiency in post-curing permeability testing of glue, large manual operation errors, inability to achieve continuous multi-segment comparisons, inability to simulate the effects of real-world humidity, and difficulty in post-test cleaning and reuse. By employing a continuous film structure and a multi-segmented testing mechanism, coupled with humidification simulation and a progressive negative pressure detection process, the present invention not only improves the automation and accuracy of the test but also enables multi-dimensional dynamic evaluation of glue sealing performance under real-world operating conditions, ensuring robust testing rigor.

[0085] As a further solution of the present invention, the top of the test platform 100 is connected to a connecting frame 200 by bolts, the cover plate 105 is slidably connected to the connecting frame 200, and an elastic member a201 is connected between the cover plate 105 and the connecting frame 200, and the glue coating frame 104 is fixed to the connecting frame 200;

[0086] Through the above-mentioned arrangement, the sliding of the cover 105 in the vertical direction can be provided with a rebound force by the elastic part a201, so that the cover 105 is pressed downward during the downward movement of the detection frame 108, thereby fitting tightly to the surface of the test film 107, sealing to form a wet cavity, and ensuring the sealing of the humidification area; when the detection frame 108 moves upward, the cover 105 automatically rebounds and moves upward under the action of the elastic part a201, and separates from the test film 107, making space for the winding and displacement of the test film 107, thereby achieving coordinated cooperation with the film movement process.

[0087] Furthermore, the top of the test platform 100 is connected to the connecting frame 200 via bolts. This removable connection effectively enhances the modular assembly and maintenance convenience of the equipment compared to traditional fixed, integrated connections. During testing, the test film 107, cover plate 105, or glue coating frame 104 may become worn or contaminated due to prolonged use, or require replacement of other materials to adapt to different testing standards. By providing a removable connecting frame 200, operators can quickly replace or disassemble these components for cleaning without disassembling the entire platform.

[0088] As a further solution of the present invention, the humidifying component includes a humidifying component 202 provided on the detection frame 108, and the humidifying component 202 is an atomizer, preferably an ultrasonic atomizer or a microporous spray assembly, whose water inlet is connected to the water source chamber 210, for receiving the liquid in the water source chamber 210, and the humidifying component 202 can atomize the liquid into water mist with a particle size of less than 10 μm when working; the atomizing port of the humidifying component 202 is connected to the humidifying chamber 203, and the humidifying chamber 203 is further in contact with the cover plate 105 through a plurality of elastic telescopic rods 204 provided at the bottom of the detection frame 108, and a hollow channel 205 is provided inside the elastic telescopic rod 204, and is connected to the humidifying chamber 203, and is used as a transmission channel for the atomized gas, and a plurality of humidifying ports 206 connected to the hollow channel 205 are provided at the top of the cover plate 105 corresponding to the position of the elastic telescopic rod 204.

[0089] Through the above arrangement, the liquid in the water source chamber 210 can be atomized through the humidifying element 202. The humidified gas enters the cover plate 105 through the hollow channel 205 of the humidifying chamber 203 and the elastic telescopic rod 204, and is sprayed into the inner space of the cover plate 105 through the humidifying port 206, forming a stable humidified gas environment. Because the elastic telescopic rod 204 has a retractable structure, it can adapt to the relative displacement between the detection frame 108 and the cover plate 105, ensuring that the humidification path remains connected during the movement of the structure. This allows for continuous, uniform, and uninterrupted humidification of the area above the test film 107 during the testing process, providing a simulation of humidity-affecting conditions for subsequent sealing tests.

[0090] Furthermore, the elastic potential energy (elastic force) of the resilient telescopic rod 204 is greater than the elastic force of spring a between the cover plate 105 and the connecting frame 200. Consequently, when the detection frame 108 moves downward as a whole, the cover plate 105 is preferentially pushed downward to contact the film, rather than the resilient telescopic rod 204 being compressed. This achieves the desired "humidification chamber sealing" action. This ensures continuous transfer of atomized gas from the humidification chamber 203 to the cover plate 105 cavity, and also resolves the relative displacement between the detection frame 108 and the cover plate 105 during movement.

[0091] In this embodiment, the moving component includes a moving bracket 207 arranged on the detection frame 108, and the moving bracket 207 is connected to the cylinder 208 on the test platform 100. Specifically, the telescopic shaft of the cylinder 208 is connected to the lower part of the moving bracket 207, which is used to drive the detection frame 108 to move up and down in the vertical direction.

[0092] Through this arrangement, the hydraulic cylinder 208 is driven to lift and lower the movable bracket 207 and the inspection frame 108 vertically. When the hydraulic cylinder 208 retracts, the inspection frame 108 moves downward, allowing the gluing shaft 111 to enter the gluing frame 104, contact the test film 107, and complete the gluing process. When the hydraulic cylinder 208 extends, the inspection frame 108 moves upward, coordinating with the rebound of the cover plate 105 and the rewinding of the test film 107 to prepare space for the next test. This structure, through the reciprocating motion of the hydraulic cylinder 208, achieves an automatic, controllable, and stable inspection rhythm.

[0093] In this embodiment, the detection component includes a connecting rod 300 arranged on the movable bracket 207, the sleeve 109 includes a fixed tube 301 fixedly installed on the detection port a103, a piston 302 is fixed on the connecting rod 300, the piston 302 can be slidably mounted in the inner cavity of the fixed tube 301, and the micro-pressure sensor 110 is installed on the piston 302.

[0094] Through the above arrangement, when the detection frame 108 is moved downward by the oil cylinder 208, the piston 302 can slide downward along the inner cavity of the fixed tube 301 under the drive of the connecting rod 300, and a relatively sealed cavity is formed between the piston 302 and the fixed tube 301. When the cover plate 105 is pressed down and pressed against the film, a relatively closed space is formed between the film and the detection port a103. At this time, the piston 302 moves downward in the fixed tube 301, which is equivalent to changing the volume of the closed cavity, thereby forming a negative pressure or pressure difference. The micro-pressure sensor 110 is fixed to the piston 302 body and can monitor the air pressure changes in the detection cavity in real time during the negative pressure establishment process. If the cured film covering the test film 107 has micropores or sealing defects, it will cause leakage under the action of negative pressure, resulting in pressure fluctuations in the cavity; on the contrary, if the film is well sealed, the air pressure in the cavity will remain relatively stable. This structure utilizes the cover plate 105 to compress and form a closed space, the piston 302 to drive the air pressure change by displacement, and the sensor to provide real-time feedback, thereby forming a high-precision and high-repeatability sealing performance detection mechanism.

[0095] As a further solution of the present invention, the coating component includes a connecting frame 400 connected to the bottom of the detection frame 108, and two connecting rods 401 are rotatably connected to the connecting frame 400. An elastic member b402 is connected between the connecting rod 401 and the connecting frame 400. The distance between the two connecting rods 401 is larger than the glue coating port 102 and smaller than the glue coating frame 104. The bottom of the connecting rod 401 is connected to a roller 403 through a bearing. The outer surface of the roller 403 contacts the upper surface of the glue coating frame 104. One side of the connecting frame 400 is connected to a stretching member. The telescopic bracket 404 is connected to the telescopic end of the telescopic bracket 404 with a slide rail 405, and a glue coating box 406 is slidably connected to the slide rail 405. The glue coating shaft 111 is rotatably connected to the bottom of the glue coating box 406. The bottom of the glue coating box 406 is provided with a liquid outlet 407. The glue coating box 406 is rotatably connected to a connecting shaft 415 fixed to the roller 403. A transmission chain 408 is connected between the connecting shaft 415 and the glue coating shaft 111. The glue coating shaft 111 is driven by the connecting shaft 415, the transmission chain 408 and the roller 403;

[0096] A ring is fixed to the bottom of the glue coating box 406, and the glue coating shaft 111 is rotatably connected to the ring;

[0097] With the above arrangement, when the detection frame 108 moves downward until the gluing shaft 111 contacts the surface of the test film 107, the roller 403 disposed at the bottom of the connecting rod 401 first contacts the upper surface of the gluing frame 104. Since the distance between the two connecting rods 401 is larger than the gluing port 102 but smaller than the gluing frame 104, the contact between the roller 403 and the gluing frame 104 forms a downward pressure limit on the bottom of the connecting rod 401, thereby limiting the continued downward pressure on the bottom of the connecting rod 401. In the arrangement, the connecting rod 401 is in an inclined state, and the connecting rod 401 is rotationally connected to the connecting frame 400. After the roller 403 contacts the gluing frame 104, the connecting rod 401 is subjected to force → rotates around the upper end axis, and at the same time twists the elastic member b402, forming elastic rebound potential energy. When the connecting rod 401 rotates, its bottom will slide on the upper surface of the glue coating frame 104, and the glue coating box 406 will slide on the slide rail 405 in a vertical state under the horizontal restriction of the slide rail 405.

[0098] Roller 403 itself is not completely stationary; it rolls on glue coating frame 104. This rotation is then transmitted to the glue coating roller via connecting shaft 415 and transmission chain 408, causing the glue coating roller to rotate. The liquid outlet 407 at the bottom of glue coating box 406 continuously releases glue, which lands on the surface of the rotating glue coating roller and is evenly transferred to the surface of the test film 107 below as it rolls. Because the glue coating roller maintains constant contact with the film surface during its horizontal movement, its rotation drives the glue to spread across the film surface, achieving a continuous operation of discharging glue while rolling and coating, effectively covering and filling the small holes on the film surface, improving the uniformity of the glue layer and the sealing integrity.

[0099] Specifically, because the slide rail 405 is mounted on the telescopic end of the telescopic bracket 404, and the telescopic bracket 404 itself is mounted on the connecting frame 400, and the connecting frame 400 is pressing down at this time, the roller 403 of the connecting rod 401 is restricted and instead "pushes upward" the end of the telescopic bracket 404, that is, the position of the slide rail 405, allowing the slide rail 405 to move relative to the detection frame 108. The function of the slide rail 405 is to maintain the posture of the glue coating box 406. When the detection frame 108 moves downward as a whole, the glue coating box 406 can passively slide along the slide rail 405, thereby achieving the purpose of allowing the glue coating shaft 111 to move and roll along the glue coating frame 104.

[0100] After gluing is complete, the control system drives the inspection frame 108 upward, raising the connecting frame 400. The connecting rod 401, under the action of the elastic member b402, rotates in the opposite direction, gradually returning to its initial position. Simultaneously, the telescopic bracket 404 moves upward along with the connecting frame 400 as the inspection frame 108 rises, and its telescopic end moves downward, returning the slide rail 405 to its initial height. The return of the slide rail 405 causes the glue box 406 to slide back along the slide rail 405 under the guiding force, returning to its original position, completing a closed loop of the gluing cycle.

[0101] As a further embodiment of the present invention, the coating component further includes a glue tank 409 connected to the filler chamber 209. The glue tank 409 is connected to a glue inlet pipe 410. A one-way valve 411 is provided at the top of the glue tank 409. A push plate 412 is provided in the glue tank 409. A push rod 413 connected to the push plate 412 is connected to the telescopic end of the telescopic bracket 404. A hose 414 is connected to one side of the glue tank 409. The other end of the hose 414 is connected to the glue coating box 406.

[0102] With the above arrangement, when the roller 403 on the connecting rod 401 contacts the glue coating frame 104 and begins to roll, the telescopic end of the telescopic bracket 404 can contract and move relative to the detection frame 108, thereby driving the push rod 413 connected to it to push upward the push plate 412 disposed inside the glue tank 409. Under the push of the push plate 412, because the one-way valve 411 is provided at the top of the glue tank 409, preferably a diaphragm-type one-way valve 411, when the push plate 412 pushes the glue liquid out, the one-way valve 411 automatically closes, and the glue liquid inside the glue tank 409 is pressurized and transported along the hose 414 to the interior of the glue coating box 406. Finally, it flows through the liquid outlet 407 to the glue coating shaft 111. When the push plate 412 is subsequently reset downward, the one-way valve 411 automatically opens, drawing in external air to replenish the internal volume of the tank, preventing the negative pressure caused by the reduced volume from affecting the glue liquid output.

[0103] In the present invention, the moment when the glue-applying shaft 111 contacts the film is also the time when the glue supply amount is most needed and can be most accurately controlled.

[0104] This structure precisely applies pressure via push plate 412, allowing glue to flow directly to outlet 407 and then to the glue-applying shaft 111. This ensures a precise rhythm and eliminates the need for triggering delays. Compared to the instantaneous start of electric pumps or the pressure jumps of air pumps, push plate 412-based glue supply relies on the slow upward push of ejector pin 413. Pressure gradually increases as inspection frame 108 pushes downward, making it more suitable for continuous roll coating, which requires consistent glue layer thickness.

[0105] As a further embodiment of the present invention, the detection frame 108 can rewind the test film 107 when it moves back and forth a preset number of times a, and the test film 107 starts to be rewound from the right end so that the new test film 107 is placed in the glue coating frame 104;

[0106] The test platform 100 is rotatably connected to two take-up shafts 500, on which the two ends of the test film 107 are respectively wound. A rack 501 is connected to the movable bracket 207. A transmission shaft 502 is rotatably connected to the test platform 100, and a gear a503 is connected to the transmission shaft 502. A gear b504 adapted to the gear a503 is connected to the take-up shaft 500. The transmission shaft 502 is also connected to a gear c505 meshing with the rack 501. A ratchet mechanism 506 is provided between the gear c505 and the transmission shaft 502. The gear a503 is an incomplete gear.

[0107] Through the above arrangement, when the detection frame 108 reciprocates up and down during the test process, the rack 501 mounted on the movable bracket 207 moves up and down accordingly, and drives the transmission shaft 502 to rotate through the meshing gear c505. A ratchet mechanism 506 is provided on the transmission shaft 502, which only allows the gear c505 to output rotational force in a single direction, thereby preventing malfunction caused by the back-and-forth movement of the detection frame 108. The transmission shaft 502 also drives the gear a503 with an incomplete tooth profile. When its tooth segment rotates to a specific position, it meshes with the gear b504 on the rewinding shaft 500, achieving intermittent drive of the rewinding shaft 500. This allows the test film 107 to complete a rewinding action after the detection frame 108 reciprocates a preset number of times, automatically feeding a new section of the test film 107 into the coating frame 104, preparing for the next round of testing.

[0108] The incomplete gear a503 is used to control the winding rhythm, so that the winding action only occurs when the transmission shaft 502 rotates to a specific angle, effectively realizing the action interval of "winding after the preset number of times a", ensuring that each section of the test film 107 has sufficient gluing and testing cycles.

[0109] As a further embodiment of the present invention, a hole-making roller 600 is rotatably connected to the test platform 100. The hole-making roller 600 is a round roller with multiple conical thorns on its outer wall. One end of the test film 107 is wound on the left winding shaft 500. As a clean film, the test film 107 passes around the hole-making roller 600, passes through the test platform 100, reaches the gap between the bottom plate 101 and the glue coating frame 104, then passes through the gap between the cover plate 105 and the bottom plate 101, and finally passes through the test platform 100 again to connect to the winding shaft 500 on the right.

[0110] With the above arrangement, as the test film 107 moves from the left winding reel 500 to the right winding reel 500, it first passes around the puncturing roller 600, which is equipped with multiple conical thorns. This allows the surface of the test film 107 to actively pierce the test film 107 during rolling contact, forming multiple evenly distributed small holes. Because the puncturing roller 600 is a rotating connection structure, it can rotate synchronously with the movement of the test film 107, thereby ensuring the continuity and consistency of the film puncturing process. After the puncture, the test film 107 passes through the various functional areas of the test platform 100 in sequence, including the gap area between the base plate 101 and the glue coating frame 104, the humidification area between the cover plate 105 and the base plate 101, and finally the negative pressure detection area, completing the corresponding operation process in each area. Before the test film 107 enters the test platform 100, its surface is evenly punctured to simulate actual micropore leakage scenarios, providing a standardized defect basis for subsequent glue coating and sealing testing. This structure mechanically generates a highly consistent array of small holes, ensuring uniform test conditions. This helps to conduct a horizontal comparison of the sealing performance of glues with different formulas under the same defect conditions, thereby improving the objectivity and repeatability of the test data.

[0111] As a further embodiment of the present invention, a curing plate 601 is slidably connected to the connecting frame 200. A plurality of ultraviolet lamps 602 are connected to the bottom of the curing plate 601. An elastic member c603 is connected between the curing plate 601 and the connecting frame 200. A push opening 604 is formed at the top of the curing plate 601. A push bar 605 adapted to the push opening 604 is connected to one side of the glue coating box 406.

[0112] Through the above arrangement, when the glue box 406 moves horizontally along the slide rail 405 to perform the glue application operation, the push bar 605 provided on one side thereof will enter the push port 604 on the curing plate 601 at the top of the connection frame 200 and contact the inner wall of the push port 604 during the sliding process, thereby driving the curing plate 601 to slide horizontally, allowing the ultraviolet lamp 602 thereon to leave the glue application area, thereby avoiding premature irradiation of the glue that has not been evenly spread during the glue application process, which may lead to local curing, instability of the glue layer, and other problems. When the glue box 406 completes the glue application operation and returns to its initial position along the slide rail 405, the push bar 605 disengages from the push port 604, and the curing plate 601 automatically rebounds to its original position under the action of the elastic member c603, allowing the ultraviolet lamp 602 to realign with the glue application area and perform ultraviolet curing irradiation.

[0113] This structure automatically links the position change of the curing plate 601 through the movement of the glue coating box 406, realizing the regional staggering and timing coordination of the two processes of glue coating and curing, avoiding the interference of ultraviolet radiation and unfinished glue coating action, and improving the integrity and uniformity of the cured film layer.

[0114] A method for testing the curing of glue for a space capsule, using any of the above-mentioned devices for testing the curing of glue for a space capsule, wherein the glue comprises the following components:

[0115] Desmodur® N3600 (polyurethane prepolymer) 43.0%

[0116] HEMA (acrylate monomer) 8.0%

[0117] CN120 (epoxy acrylate) 6.5%

[0118] Phenolic modified resin (YDC-G918) 4.0%

[0119] Aerogel powder (SiO2) 0.7%

[0120] BYK-024 (defoaming agent) 0.15%

[0121] TEGO Flow 370 (leveling agent) 0.3%

[0122] Darocur 1173 (photoinitiator) 1.3%

[0123] BHT (antioxidant) 0.1%

[0124] Irgafos 168 (light stabilizer) 0.25%

[0125] The rest are active diluents and additives, and the following steps are also included:

[0126] Step 1: Pretreatment and penetration of test film 107

[0127] The continuous test film 107 is passed through the hole-making roller 600 to form evenly distributed small holes (diameter 0.2 mm to 0.6 mm);

[0128] The test film 107 passes through the gap between the bottom plate 101 and the glue coating frame 104, and the gap between the cover plate 105 and the bottom plate 101, and is connected to the left and right winding shafts 500;

[0129] Step 2: Glue

[0130] Inject the glue with the above ratio into the filling cavity 209 at the top of the detection frame 108;

[0131] Start the moving part to drive the detection frame 108 to move downward so that the glue-coating shaft 111 contacts the test film 107;

[0132] The connecting rod 401 is limited and the glue box 406 slides on the slide rail 405, so that the glue shaft 111 rotates and rolls;

[0133] During the rolling process of the glue-applying shaft 111, glue is continuously released through the liquid outlet 407 to form a first layer of glue film;

[0134] Control the detection frame 108 to move up and down multiple times (number of times a) to achieve multiple roll coating and superposition, and seal the small holes of the test film 107 layer by layer;

[0135] Step 3: UV curing

[0136] When the glue coating box 406 slides to the set position, the push bar 605 drives the curing plate 601 to move horizontally away from the glue coating area, and the glue coating box 406 returns to the initial position. The curing plate 601 returns under the action of the elastic member, and the ultraviolet lamp 602 irradiates the applied glue to complete the ultraviolet curing;

[0137] Step 4: Humidification

[0138] The rewinding mechanism is activated to move the cured film segment to the area covered by the cover plate 105;

[0139] The humidifying component is started and water mist is continuously injected into the cover plate 105 through the humidifying port 206 to form a stable high-humidity environment, simulating the aging condition of the humid environment in the space capsule.

[0140] Step 5: Negative pressure sealing test

[0141] After humidification is completed, the test film 107 continues to move and is positioned at the corresponding areas of the detection ports a103 and b106. The piston 302 is pulled down to form negative pressure, and the micro-pressure sensor 110 monitors the air pressure in real time.

[0142] If the cured adhesive film on the film is well sealed, there will be no obvious pressure drop in the test cavity, indicating that the glue has excellent sealing performance;

[0143] If the film has micropores or degrades due to moisture absorption and expansion, a pressure drop will occur, reflecting its anti-permeation defects.

[0144] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A space capsule special glue curing test device, characterized in that: The test platform (100) comprises a bottom plate (101) provided on the test platform (100), a gluing port (102) and a detection port a (103) provided on the bottom plate (101), a gluing frame (104) communicating with the gluing port (102) provided on the top of the bottom plate (101), a cover plate (105) provided on the top of the bottom plate (101), a detection port b (106) communicating with the detection port a (103) provided on the cover plate (105), and is characterized in that it further comprises: a test film (107) disposed on the top of the test platform (100), wherein the test film (107) has a plurality of small holes; A detection frame (108) disposed on top of the test platform (100); a sleeve (109) provided on the test platform (100) and communicating with the detection port a (103), wherein a micro-pressure sensor (110) is provided in the sleeve (109); A glue coating shaft (111) provided at the bottom of the detection frame (108); A coating component, used for coating glue on the surface of the test film (107) in the glue coating frame (104); A humidifying component, used for atomizing liquid in the cover plate (105); A detection component, used for forming a negative pressure at the detection port a (103), and for testing the pressure change in the detection port a (103) by the micro-pressure sensor (110); It also includes a moving component disposed between the test platform (100) and the detection frame (108), and is used to move the position of the detection frame (108) up and down; When the moving component moves the detection frame (108) downward to a preset position, the coating component can move the coating shaft (111) along the length direction of the coating frame (104) and generate a rotational motion to coat the glue on the surface of the test film (107) in the coating frame (104); The detection frame (108) can reciprocate up and down to a preset number of times a, and then roll up the test film (107). The test film (107) starts to roll up from the right end, so that the new test film (107) is located in the glue coating frame (104).

2. A space capsule-specific glue curing test device according to claim 1, characterized in that: The detection frame (108) is located on the top of the cover plate (105), and the detection frame (108) has a filling cavity (209), a humidification cavity (203), and a water source cavity (210); The top of the test platform (100) is connected to a connecting frame (200) via bolts, the cover plate (105) is slidably connected to the connecting frame (200), and an elastic member a (201) is connected to the connecting frame (200), and the glue coating frame (104) is fixed to the connecting frame (200).

3. A space capsule-specific glue curing test device according to claim 2, characterized in that: The humidifying component comprises a humidifying element (202) provided on the detection frame (108), a water inlet of the humidifying element (202) being connected to the water source chamber (210), an atomizing port of the humidifying element (202) being connected to the humidifying chamber (203), a plurality of elastic telescopic rods (204) corresponding to the cover plate (105) being connected to the bottom of the detection frame (108), the elastic telescopic rods (204) having a hollow channel (205) being connected to the humidifying chamber (203), and a humidifying port (206) being connected to the hollow channel (205) being provided on the top of the cover plate (105).

4. A space capsule-specific glue curing test device according to claim 2, characterized in that: The movable component comprises a movable bracket (207) connected to the detection frame (108), an oil cylinder (208) is connected to the test platform (100), and a telescopic shaft of the oil cylinder (208) is connected to the movable bracket (207).

5. A space capsule-specific glue curing test device according to claim 4, characterized in that: The detection component includes a connecting rod (300) connected to the movable bracket (207), the sleeve (109) includes a fixed tube (301) fixed to the detection port a (103), a piston (302) slidably sleeved in the fixed tube (301) is fixed on the connecting rod (300), and the micro-pressure sensor (110) is fixed on the piston (302).

6. A space capsule-specific glue curing test device according to claim 4, characterized in that: The coating component includes a connecting frame (400) connected to the bottom of the detection frame (108), two connecting rods (401) are rotatably connected to the connecting frame (400), an elastic member b (402) is connected between the connecting rod (401) and the connecting frame (400), the distance between the two connecting rods (401) is larger than the glue coating port (102) and smaller than the glue coating frame (104), the bottom of the connecting rod (401) is connected to a roller (403) through a bearing, the outer surface of the roller (403) is in contact with the upper surface of the glue coating frame (104), and the connecting frame A telescopic bracket (404) is connected to one side of (400), and a slide rail (405) is connected to the telescopic end of the telescopic bracket (404), and a glue coating box (406) is slidably connected to the slide rail (405). The glue coating shaft (111) is rotatably connected to the bottom of the glue coating box (406), and a liquid outlet (407) is provided at the bottom of the glue coating box (406). The glue coating box (406) is rotatably connected to a connecting shaft (415) fixed to the roller (403), and a transmission chain (408) is connected between the connecting shaft (415) and the glue coating shaft (111).

7. A space capsule-specific glue curing test device according to claim 6, characterized in that: The coating component also includes a glue box (409) connected to the filling chamber (209), the glue box (409) is connected to a glue inlet pipe (410), a one-way valve (411) is provided on the top of the glue box (409), a push plate (412) is provided in the glue box (409), the telescopic end of the telescopic bracket (404) is connected to a push rod (413) connected to the push plate (412), one side of the glue box (409) is connected to a hose (414), and the other end of the hose (414) is connected to the glue coating box (406).

8. The space capsule-specific glue curing test device according to claim 4, characterized in that: The test platform (100) is rotatably connected to two reeling shafts (500), the two ends of the test film (107) are respectively wound on the two reeling shafts (500), the movable bracket (207) is connected to a rack (501), the test platform (100) is rotatably connected to a transmission shaft (502), the transmission shaft (502) is connected to a gear a (503), the reeling shaft (500) is connected to a gear b (504) adapted to the gear a (503), the transmission shaft (502) is further connected to a gear c (505) meshing with the rack (501), a ratchet mechanism (506) is provided between the gear c (505) and the transmission shaft (502), and the gear a (503) is an incomplete gear.

9. The space capsule-specific glue curing test device according to claim 6, characterized in that: The test platform (100) is rotatably connected to a hole-making roller (600), the hole-making roller (600) being a round roller with a plurality of conical thorns on its outer wall. One end of the test film (107) is rolled up on the reeling shaft (500) on the left side. The test film (107) bypasses the hole-making roller (600), passes through the test platform (100), reaches the gap between the bottom plate (101) and the glue coating frame (104), then passes through the gap between the cover plate (105) and the bottom plate (101), and finally passes through the test platform (100) again to be connected to the reeling shaft (500) on the right side. A curing plate (601) is slidably connected to the connecting frame (200), a plurality of ultraviolet lamp tubes (602) are connected to the bottom of the curing plate (601), an elastic member c (603) is connected between the curing plate (601) and the connecting frame (200), a push opening (604) is provided on the top of the curing plate (601), and a push bar (605) adapted to the push opening (604) is connected to one side of the glue coating box (406).

10. A method for testing the curing of glue for a space capsule, using the device for testing the curing of glue for a space capsule according to any one of claims 1 to 9, characterized in that: The glue comprises the following components: 43.0% polyurethane prepolymer, 8.0% acrylate monomer, 6.5% epoxy acrylate, 4.0% phenolic modified resin, 0.7% aerogel powder, 0.15% defoamer, 0.3% leveling agent, 1.3% photoinitiator, 0.1% antioxidant, 0.25% light stabilizer, and the balance is reactive diluent, and further comprises the following steps: Step 1: The test film (107) is passed through the hole-making roller (600) to form evenly distributed small holes. The test film (107) passes through the gap between the bottom plate (101) and the glue coating frame (104), the gap between the cover plate (105) and the bottom plate (101), and is connected to the left reel (500) and the right reel (500); Step 2: inject the mixed glue into the filling cavity (209) at the top of the detection frame (108), start the moving part, drive the detection frame (108) to move downward, make the glue coating shaft (111) contact the test film (107), limit the connecting rod (401), and slide the glue coating box (406) on the slide rail (405) to realize the rotation and rolling of the glue coating shaft (111). During the rolling process of the glue coating shaft (111), the glue is continuously released through the liquid outlet (407) to form a first layer of glue film, and control the detection frame (108) to move back and forth a predetermined number of times a, and seal the small holes of the test film (107) layer by layer; Step 3: When the glue coating box (406) slides to the set position, the push bar (605) drives the curing plate (601) to move horizontally away from the glue coating area. When the glue coating box (406) returns to the initial position, the curing plate (601) returns under the action of the elastic member, and the ultraviolet lamp (602) irradiates the applied glue to complete the ultraviolet curing; Step 4: Move the cured film segment to the area covered by the cover plate (105), and the humidifying component continuously injects water mist into the cover plate (105) through the humidifying port (206) to form a stable high-humidity environment to simulate the aging condition of the humid environment in the space capsule; Step 5: The test film (107) continues to move and moves to the corresponding areas of the detection port a (103) and the detection port b (106). The piston (302) is pulled down to form a negative pressure, and the micro-pressure sensor (110) monitors the air pressure in real time. If the cured adhesive film on the film is well sealed, there will be no obvious pressure drop in the test cavity, indicating that the glue has excellent sealing performance; If the film has micropores or degrades due to moisture absorption and expansion, a pressure drop will occur, reflecting its anti-permeation defects.

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