In-situ mechanoluminescence coupling interface for coupling testing machine and fluorescence spectrometer

Abstract

The invention relates to the technical field of combination of a testing machine and a fluorescence spectrometer, in particular to an in-situ mechanoluminescence combination interface for combination of the testing machine and the fluorescence spectrometer, and discloses an in-situ mechanoluminescence combination interface for combination of the testing machine and the fluorescence spectrometer, which is used for adjusting the distance, the angle and the relative height between the spectrum combination interface and a detected object by driving a fixed frame to move when a sliding block moves. The requirement for multi-angle accurate adjustment of the spectrum coupling interface is met, and manual pushing by workers is not needed. And the design of combined use of the matching groove and the fixing rod avoids angle and distance changes caused by mistaken touch in the use process. The spectrum coupling interface provided by the invention can be used for coupling an FLS980 steady-state transient fluorescence spectrometer and a tensile testing machine, the exciting light of the spectrometer is guided out by the optical fiber and excites a sample stretched on the testing machine through the spectrum coupling interface, and an emission signal can be guided into the spectrometer through the optical fiber in the stretching process and is detected by a spectrometer detector; therefore, optical parameters such as fluorescence spectrum and service life are obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test machine and fluorescence spectrometer combination, in particular to a test machine and fluorescence spectrometer combination in-situ mechanoluminescence combination interface. BACKGROUND

[0002] Polyacetylene derivatives and other materials can convert mechanical signals into sensitive fluorescence signals, which have important application value in the field of mechanical sensing and anti-counterfeiting identification, and are an important field of current scientific research and practical application development. The characterization of the fluorescence spectral properties of such materials requires real-time monitoring of changes in optical signals such as luminescence intensity, luminescence lifetime, and emission peak position during the application of external force, i.e., in-situ fluorescence spectral characterization.

[0003] In actual use, the current method is to fix the sample on a steel ruler by clamping it with a clamp at both ends, achieve and mark different degrees of stretching of the sample, then transfer the stretched sample to the spectrometer for spectral scanning to obtain the required optical data, and then install it on the test machine to test the mechanical parameters under the corresponding stretching deformation. This method can achieve separate control and testing in terms of stretching and optical parameters, but since the two tests are separate, it is not a true in-situ fluorescence spectral characterization. In subsequent data analysis, due to the relatively complex data, there are certain difficulties in the correspondence between different stretching degrees and the corresponding fluorescence spectra. At the same time, by separating the two tests and performing them separately, the experimental amount is increased and the characterization efficiency is reduced, and for the characterization of unstable samples that need to be tested as soon as possible, there are greater difficulties. In addition, during the process of transferring and installing the sample stretched and fixed by the clamp in the spectrometer for optical parameter characterization, experimental failure may occur due to the operator's accidental touch, which will also cause differences between different experimenters in the same test, which is not conducive to the repetition of experimental results. Therefore, there is an urgent need for an in-situ spectral characterization method that can simultaneously measure the stretching mechanical parameters and the spectral parameters. The in-situ mechanoluminescence combination interface of the test machine and the fluorescence spectrometer can effectively solve this problem.

[0004] Based on the existing problems, the present application is dedicated to solving the technical problem that mechanochromic materials cannot be simultaneously in-situ characterized by mechanical testing and spectral testing during fluorescence spectral characterization. By designing an interface that can combine the test machine and the fluorescence spectrometer together, the present application can achieve precise adjustment of the sample position and angle, avoid accidental touch, complete in-situ spectral characterization of common mechanochromic materials such as cyan-substituted stilbene derivatives (DBDCS), triphenylpropenonitrile derivatives, spiropyrans, and other stretching-induced color-changing materials, and has an important role in promoting related research fields. SUMMARY

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an in-situ mechanoluminescence interface for combining a testing machine with a fluorescence spectrometer. This interface connects an FLS980 steady-state and transient fluorescence spectrometer with a tensile testing machine. Excitation light from the spectrometer is guided through an optical fiber and excites a sample placed on the testing machine under tension via the interface. During the tensile process, the emitted signal is transmitted via optical fiber to the spectrometer, where it is detected by the spectrometer's detector, thus obtaining optical parameters such as fluorescence spectra and lifetime. This allows for simultaneous monitoring of changes in the material's mechanical and optical parameters during tensile testing, achieving true in-situ mechanoluminescence spectral characterization. This solves the problem that optical and mechanical parameters need to be measured separately, which previously prevented truly comprehensive in-situ fluorescence spectral characterization.

[0006] (II) Technical Solution To achieve the aforementioned integration of the FLS980 steady-state and transient fluorescence spectrometer with a tensile testing machine, the spectrometer's excitation light is guided through an optical fiber and excites a sample placed on the testing machine under tension via a spectrometer coupling interface. During the tensioning process, the emitted signal can be guided through the optical fiber to the spectrometer, where it is detected by the spectrometer's detector, thereby obtaining optical parameters such as fluorescence spectrum and lifetime. In this way, changes in the mechanical and optical parameters of the material during tension can be monitored simultaneously, thus achieving true mechanoluminescence in-situ spectroscopic characterization. This invention provides the following technical solution: including: a support base, a spectrometer coupling interface, and further comprising: A threaded box is fixedly connected to both sides of the lower surface of the support base; The slider is slidably connected inside the threaded box; Both the upper surface of the support base and the upper surface of the thread box are provided with openings; Rotate the gear, which is rotatably connected to the upper surface of the slider; A fixed frame is fixedly connected to the upper surface of the rotating gear; A sliding rod is slidably connected to the upper surface of the fixed frame and extends through and into the interior of the fixed frame; The first limiting frame is fixedly connected to the lower surface of the inner wall of the fixed frame; The second limiting frame is fixedly connected to the lower surface of the sliding rod and is located inside the fixed frame; A clamping spring is sleeved on the surface of the sliding rod, and its two ends are fixedly connected to the upper surface of the inner wall of the fixed frame and the upper surface of the second limiting frame, respectively. The threaded rod is rotatably connected between the front and rear sides of the inner wall of the threaded box and passes through the interior of the slider; The threaded rod is threadedly connected to the slider, and one end of the spectral interface is fixedly connected to an optical fiber. The two ends of the spectral interface are respectively set as the excitation light incident end and the emission light emitting and collecting end.

[0007] Furthermore, a rotating cylinder is rotatably connected to the upper surface of the slider, and a meshing gear is fixedly connected to the surface of the rotating cylinder, the meshing gear meshing with the rotating gear.

[0008] Furthermore, a limiting plate is slidably connected between the inner walls of the rotating cylinder, and an adjusting spring is fixedly connected between the lower surface of the limiting plate and the lower surface of the inner wall of the rotating cylinder.

[0009] Furthermore, a connecting frame is fixedly connected to the upper surface of the limiting plate, and a fixing rod is fixedly connected to both sides of the lower surface of the connecting frame.

[0010] Furthermore, a mating groove is provided on the upper surface of the meshing gear and below the fixing rod.

[0011] Furthermore, a fixing plate is fixedly connected to one side of the support base, a support rod is rotatably connected to the lower surface of the fixing plate, a support cylinder is sleeved on the surface of the support rod, and a support plate is fixedly connected to the lower surface of the support cylinder.

[0012] Furthermore, a first bevel gear is rotatably connected inside the support cylinder, and the first bevel gear is threadedly connected to the support rod. An adjusting shaft that passes through and extends into the support cylinder is rotatably connected to one side of the support cylinder.

[0013] Furthermore, both the first limiting frame and the second limiting frame are set as opposing semi-circular arcs, and friction pads are provided on the opposing side surfaces.

[0014] Furthermore, one end of the adjusting shaft is fixedly connected to a second bevel gear that is threadedly connected to the first bevel gear.

[0015] Furthermore, a support telescopic rod is fixedly connected to the upper surface of the support plate and to one side of the support cylinder, and one end of the support telescopic rod is fixedly connected to the lower surface of the support base.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides an in-situ mechanoluminescence coupling interface for combining a testing machine with a fluorescence spectrometer, which has the following beneficial effects: 1. This testing machine utilizes an in-situ mechanoluminescence interface in conjunction with a fluorescence spectrometer. By pulling a sliding rod, the second limiting frame compresses the clamping spring, allowing the interface to be quickly installed into the support base. Simultaneously, rotating the threaded rod adjusts the position of the slider, which, in turn, moves the fixed frame, adjusting the distance between the interface and the object being tested. This allows for more precise adjustments without manual intervention. The interface connects the FLS980 steady-state and transient fluorescence spectrometer with the tensile testing machine. Excitation light from the spectrometer is transmitted via optical fiber and excites the sample placed on the testing machine under tension. During tensioning, the emitted signal is transmitted through optical fiber to the spectrometer, where it is detected by the detector to obtain optical parameters such as fluorescence spectrum and lifetime. This allows for simultaneous monitoring of changes in the mechanical and optical parameters of the material during tensioning, achieving true in-situ mechanoluminescence spectral characterization.

[0017] 2. This testing machine uses an in-situ mechanoluminescence interface in conjunction with a fluorescence spectrometer. When the set meshing gear rotates, it can drive the fixed frame to rotate through the meshing gear, thereby adjusting the angle of the spectrometer interface. This can meet the requirements of operators to monitor at different angles. At the same time, when the angle needs to be adjusted, the operator needs to press the connecting frame to insert the fixed rod into the mating groove before the meshing gear can rotate. This prevents accidental contact during monitoring, which could lead to inaccurate monitoring results and improves the accuracy of adjustment. After adjustment, simply loosen the connecting frame, and the adjusting spring will lift the connecting frame, causing the fixed rod to separate from the mating groove.

[0018] 3. This testing machine uses an in-situ mechanoluminescence interface in conjunction with a fluorescence spectrometer. By adjusting the rotation of the rotating shaft, the second bevel gear and the first bevel gear rotate, and the support rod and the first bevel gear move up and down through a threaded connection, thereby adjusting the height of the support base to meet the actual needs of the staff. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a front view of the overall structure of the present invention; Figure 4 The structure of this invention Figure 3 Enlarged view of point A in the middle; Figure 5 The structure of this invention Figure 2 Enlarged view at point B in the middle; Figure 6 The structure of this invention Figure 1 Enlarged view at point C; Figure 7 This is a cross-sectional view of the threaded box structure of the present invention.

[0020] In the diagram: 1. Support base; 2. Spectrometer interface; 3. Threaded box; 4. Slider; 5. Rotating gear; 6. Fixed frame; 7. Sliding rod; 8. First limiting frame; 9. Second limiting frame; 10. Clamping spring; 11. Threaded rod; 12. Rotating cylinder; 13. Meshing gear; 14. Limiting plate; 15. Adjusting spring; 16. Connecting frame; 17. Fixed rod; 18. Fixed plate; 19. Support rod; 20. Support plate; 21. First bevel gear; 22. Support cylinder; 23. Adjusting shaft; 24. Second bevel gear; 25. Support telescopic rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] For a specific implementation example, please refer to Implementation Example 1. Figures 1-7The device includes: a support base 1, and a spectrometer coupling interface 2. The spectrometer coupling interface 2 is prior art; for details, please refer to (patent application number: CN202221277463.9). This spectrometer coupling interface device with a wide-range temperature-varying accessory includes: a light-shielding panel, a detector baffle touch switch, a reserved mounting port for the temperature-varying accessory, a support platform, an accessory interface, and a position fine-tuning knob. The light-shielding panel is a flat plate made of opaque material, its dimensions matching the horizontal direction of the spectrometer's sample chamber. The light-shielding panel is installed on top of the spectrometer's sample chamber. The lower surface of the light-shielding panel is equipped with a detector baffle touch switch, which is a raised metal block directly opposite the switch of the detector baffle inside the spectrometer. Before the light-shielding panel is installed on top of the sample chamber of the spectrometer, the detector baffle switch is closed; after the light-shielding panel is installed on top of the sample chamber of the spectrometer, the detector baffle touch switch triggers the switch of the detector baffle on the instrument, and the detector baffle switch is opened. The light-shielding panel has a reserved opening for the installation of temperature-changing accessories. The reserved opening for the installation of temperature-changing accessories is a circular through hole, and there are markings on the edge of the reserved opening for the installation of temperature-changing accessories. The instrument has an annular support platform; the inner diameter of the support platform is smaller than the outer diameter of the mounting cylinder at the top of the temperature-changing accessory but larger than the outer diameter of the sample chamber at the bottom of the temperature-changing accessory; an accessory interface is provided on the light-shielding panel at the reserved installation port for the temperature-changing accessory. The accessory interface is cylindrical, with an inner diameter larger than the outer diameter of the mounting cylinder at the top of the temperature-changing accessory. The accessory interface, the reserved installation port for the temperature-changing accessory, and the support platform are coaxial, and the support platform and accessory interface are connected to the light-shielding panel as a whole; the temperature-changing accessory is installed inside the spectrometer through the reserved installation port, and the mounting cylinder at the top of the temperature-changing accessory is located at the accessory interface. Inside, the bottom of the mounting cylinder is supported by a support platform. The temperature-changing accessory sample chamber at the bottom of the temperature-changing accessory extends into the spectrometer through the reserved installation port of the temperature-changing accessory. By adjusting the height of the support platform, the temperature-changing accessory sample chamber is fixed at the set height position. The sample is placed in the temperature-changing accessory sample chamber at the bottom of the temperature-changing accessory, and the sample position is located in the optical path between the light source and the detector. The light source and the detector are respectively facing the light-transmitting window of the temperature-changing accessory sample chamber. (A position fine-tuning knob is provided on the side wall of the accessory interface, which will not be repeated here.)

[0023] It also includes: a threaded box 3, fixedly connected to both sides of the lower surface of the support base 1; a slider 4, slidably connected inside the threaded box 3; openings are provided on the upper surface of both the support base 1 and the threaded box 3; a rotating gear 5, rotatably connected to the upper surface of the slider 4; a fixed frame 6, fixedly connected to the upper surface of the rotating gear 5; a sliding rod 7, slidably connected to the upper surface of the fixed frame 6, and extending through and into the interior of the fixed frame 6; a first limiting frame 8, fixedly connected to the lower surface of the inner wall of the fixed frame 6; a second limiting frame 9, fixedly connected to the lower surface of the sliding rod 7, and located inside the fixed frame 6; a clamping spring 10, sleeved on the surface of the sliding rod 7, and fixedly connected at both ends to the upper surface of the inner wall of the fixed frame 6 and the upper surface of the second limiting frame 9 respectively; a threaded rod 11, rotatably connected between the front and rear sides of the inner wall of the threaded box 3, and extending through the interior of the slider 4; the threaded rod 11 is threadedly connected to the slider 4; one end of the spectral interface 2 is fixedly connected to an optical fiber, and the two ends of the spectral interface 2 are respectively set as the excitation light incident end and the emission light emitting and collecting end; It also includes: a rotating cylinder 12 rotatably connected to the upper surface of the slider 4; a meshing gear 13 fixedly connected to the surface of the rotating cylinder 12; the meshing gear 13 meshing with the rotating gear 5; a limit plate 14 slidably connected between the inner walls of the rotating cylinder 12; an adjusting spring 15 fixedly connected between the lower surface of the limit plate 14 and the lower surface of the inner wall of the rotating cylinder 12; a connecting frame 16 fixedly connected to the upper surface of the limit plate 14; fixed rods 17 fixedly connected to both sides of the lower surface of the connecting frame 16; a mating groove opened on the upper surface of the meshing gear 13 and below the fixed rods 17; a fixed plate 18 fixedly connected to one side of the support base 1; a support rod 19 rotatably connected to the lower surface of the fixed plate 18; and a support rod 19 sleeved on the surface of the support rod 19. The support cylinder 22 has a support plate 20 fixedly connected to its lower surface. A first bevel gear 21 is rotatably connected inside the support cylinder 22 and is threadedly connected to the support rod 19. An adjusting shaft 23 is rotatably connected to one side of the support cylinder 22, penetrating and extending into the interior of the support cylinder 22. The first limiting frame 8 and the second limiting frame 9 are both set as opposing semi-circular arcs, and friction pads are provided on the opposing side surfaces. A second bevel gear 24, which is threadedly connected to the first bevel gear 21, is fixedly connected to one end of the adjusting shaft 23. A support telescopic rod 25 is fixedly connected to the upper surface of the support plate 20 and to one side of the support cylinder 22. One end of the support telescopic rod 25 is fixedly connected to the lower surface of the support base 1.

[0024] Working principle: The operator rotates the adjusting shaft 23, causing the second bevel gear 24 to rotate and mesh with the first bevel gear 21. This rotation of the first bevel gear 24 causes the support rod 19 to rotate threadedly, allowing the support rod 19 to move up and down for adjustment. Then, the operator pulls the sliding rod 7, causing the second limiting frame 9 to compress the clamping spring 10. After placing the spectral coupling interface 2 inside the fixed frame 6, the operator releases the sliding rod 7. The clamping spring 10, due to its elastic potential energy, pushes out the second limiting frame 9, clamping the spectral coupling interface 2. When adjusting the spacing and angle, the operator rotates the threaded rod 11, which is threaded into the slider 4, allowing the slider 4 to move back and forth inside the threaded box 3. When adjusting the angle, the operator presses the connecting bracket 16, causing the connection... The frame 16 compresses the adjusting spring 15, while the fixing rod 17 is inserted into the mating groove. Then, the operator rotates the connecting frame 16, which drives the meshing gear 13 to rotate, which in turn drives the rotating gear 5 to rotate, causing the fixing frame 6 to rotate, thus changing the angle of the spectral coupling interface 2. After the adjustment is completed, the connecting frame 16 is released, and the adjusting spring 15 pushes the connecting frame 16 out due to its elastic potential energy, causing the fixing rod 17 to separate from the mating groove, thus completing the adjustment. Subsequently, the operator connects the FLS980 steady-state and transient fluorescence spectrometer and the tensile testing machine through the set spectral coupling interface 2. The excitation light of the spectrometer is led out by the optical fiber and excited by the sample placed on the testing machine for stretching through the spectral coupling interface 2. During the stretching process, the emitted signal can be guided into the spectrometer by the optical fiber and detected by the spectrometer detector, thereby obtaining optical parameters such as fluorescence spectrum and lifetime.

[0025] In summary, this testing machine, in conjunction with a fluorescence spectrometer, utilizes an in-situ mechanoluminescence interface. By pulling the sliding rod 7, the second limiting frame 9 compresses the clamping spring 10, allowing the spectral interface 2 to be quickly installed into the support base 1. Simultaneously, rotating the threaded rod 11 adjusts the position of the slider 4, causing the fixed frame 6 to move as the slider 4 moves, thus adjusting the distance between the spectral interface 2 and the object being tested. This achieves more precise adjustment of the spectral interface 2 without requiring manual pushing by personnel. The spectral interface 2 allows the FLS980 steady-state and transient fluorescence spectrometer to be used in conjunction with the tensile testing machine. The excitation light from the spectrometer is transmitted through an optical fiber and excites the sample placed on the testing machine for stretching via the spectral interface 2. During the stretching process, the emitted signal can be transmitted through an optical fiber to the spectrometer, where it is detected by the spectrometer detector, thereby obtaining optical parameters such as fluorescence spectrum and lifetime. In this way, the changes in mechanical and optical parameters of the material during the stretching process can be monitored simultaneously, thereby achieving true mechanoluminescence in-situ spectral characterization. When the meshing gear 13 rotates, it can drive the fixed frame 6 to rotate by meshing with the rotating gear 5, thereby adjusting the angle of the spectral interface 2. This can meet the requirements of the staff for monitoring at different angles. At the same time, when the angle needs to be adjusted, the staff needs to press the connecting frame 16 to insert the fixed rod 17 into the mating groove before the meshing gear 13 can rotate. This prevents the staff from accidentally touching the screen during monitoring, which would lead to inaccurate monitoring results and improve the accuracy of adjustment. After adjustment, simply release the connecting frame 16, and the adjusting spring 15 can lift the connecting frame 16, causing the fixed rod 17 to separate from the mating groove. When the adjusting shaft 23 rotates, it drives the second bevel gear 24 and the first bevel gear 21 to rotate. The support rod 19 and the first bevel gear 21 are threaded together and move up and down, thereby adjusting the height of the support base 1 to meet the actual needs of the staff.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An in-situ mechanoluminescence coupling interface for connecting a testing machine and a fluorescence spectrometer, comprising: The support base (1) and the spectral coupling interface (2) are characterized in that they further include: The threaded box (3) is fixedly connected to both sides of the lower surface of the support base (1); The slider (4) is slidably connected inside the threaded box (3); Both the upper surface of the support base (1) and the upper surface of the thread box (3) are provided with openings; Rotate the gear (5), which is rotatably connected to the upper surface of the slider (4); The fixed frame (6) is fixedly connected to the upper surface of the rotating gear (5); The sliding rod (7) is slidably connected to the upper surface of the fixed frame (6) and extends through and into the interior of the fixed frame (6); The first limiting frame (8) is fixedly connected to the lower surface of the inner wall of the fixed frame (6); The second limiting frame (9) is fixedly connected to the lower surface of the sliding rod (7) and is located inside the fixed frame (6); The clamping spring (10) is sleeved on the surface of the sliding rod (7), and its two ends are respectively fixedly connected to the upper surface of the inner wall of the fixed frame (6) and the upper surface of the second limiting frame (9); The threaded rod (11) is rotatably connected between the front and rear sides of the inner wall of the threaded box (3) and passes through the inside of the slider (4); The threaded rod (11) is threadedly connected to the slider (4), and one end of the spectral interface (2) is fixedly connected to an optical fiber. The two ends of the spectral interface (2) are respectively set as the incident light spectrum and the light emission and collection ends.

2. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 1, characterized in that: The upper surface of the slider (4) is rotatably connected to a rotating cylinder (12), and the surface of the rotating cylinder (12) is fixedly connected to a meshing gear (13), which meshes with the rotating gear (5).

3. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 2, characterized in that: A limiting plate (14) is slidably connected between the inner walls of the rotating cylinder (12), and an adjusting spring (15) is fixedly connected between the lower surface of the limiting plate (14) and the lower surface of the inner wall of the rotating cylinder (12).

4. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 3, characterized in that: The upper surface of the limiting plate (14) is fixedly connected to a connecting frame (16), and both sides of the lower surface of the connecting frame (16) are fixedly connected to a fixing rod (17).

5. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 2, characterized in that: The meshing gear (13) has a mating groove on its upper surface and below the fixing rod (17).

6. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 1, characterized in that: A fixing plate (18) is fixedly connected to one side of the support base (1), and a support rod (19) is rotatably connected to the lower surface of the fixing plate (18). A support cylinder (22) is sleeved on the surface of the support rod (19), and a support plate (20) is fixedly connected to the lower surface of the support cylinder (22).

7. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 6, characterized in that: The first bevel gear (21) is rotatably connected inside the support cylinder (22). The first bevel gear (21) is threadedly connected to the support rod (19). An adjustment shaft (23) is rotatably connected to one side of the support cylinder (22) and extends through and into the support cylinder (22).

8. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 1, characterized in that: The first limiting frame (8) and the second limiting frame (9) are both set as opposite semi-circular arcs, and friction pads are provided on the opposite side surfaces.

9. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 7, characterized in that: One end of the adjusting shaft (23) is fixedly connected to a second bevel gear (24) that is threadedly connected to the first bevel gear (21).

10. The in-situ mechanoluminescence coupling interface for a testing machine and a fluorescence spectrometer according to claim 6, characterized in that: The upper surface of the support plate (20) and one side of the support cylinder (22) are fixedly connected to a support telescopic rod (25), and one end of the support telescopic rod (25) is fixedly connected to the lower surface of the support seat (1).

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