Test auxiliary device

Abstract

The utility model discloses a test auxiliary device, which comprises a positioning structure, a fixing mechanism and an adjusting mechanism, and is characterized in that the positioning structure is configured to be matched with a to-be-tested product; the fixing mechanism is provided with a bearing position which is used for placing the positioning structure or a to-be-tested product. The adjusting mechanism is connected to the fixing mechanism, and the adjusting mechanism is used for driving the fixing mechanism to move to adjust the posture of the positioning structure, so that the positioning structure is aligned with the measuring device, the product to be detected is replaced to be aligned with the measuring device, a stable and consistent detection result is provided, the alignment precision is improved, and the detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of quality inspection, and in particular to a test auxiliary device. Background Art

[0002] Currently, the application fields of smart wearable products are becoming increasingly extensive, such as AR glasses. As a wearable device that integrates high-tech optical and electronic components, the precise alignment of its optical modules is crucial to providing a high-quality visual experience.

[0003] However, existing alignment test methods mostly rely on manual adjustment and visual inspection, which is not only inefficient but also difficult to ensure consistent high-precision requirements. Utility Model Content

[0004] In view of this, the present application proposes a test auxiliary device that can provide stable and consistent detection results, improve alignment accuracy, and enhance detection efficiency.

[0005] This application proposes a test auxiliary device, comprising:

[0006] a positioning structure configured to fit the product to be tested;

[0007] A fixing mechanism is provided with a bearing position, wherein the bearing position is used to place the positioning structure or the product to be tested;

[0008] An adjusting mechanism is connected to the fixing mechanism, and is used to drive the fixing mechanism to move so as to adjust the posture of the positioning structure so that the positioning structure is aligned with the measuring device.

[0009] In some embodiments, the positioning structure includes a base and a docking portion, the base is used to be placed in the supporting position, and the base is constructed to adapt to the product to be tested; the docking portion is provided on the base, and the docking portion has a docking surface; wherein the adjustment mechanism is used to drive the fixing mechanism to move so as to adjust the docking surface to be parallel to the preset surface of the measuring device, and to align the center position of the docking surface with the center position of the preset surface of the measuring device.

[0010] In some embodiments, the positioning structure includes a first body and a second body, and both the first body and the second body are provided with the base and the docking portion, and the first body and the second body are arranged in mirror symmetry.

[0011] In some embodiments, the positioning structure further includes a connecting portion, and the first body and the second body are connected through the connecting portion.

[0012] In some embodiments, the fixing mechanism includes a support platform, on which a fixing groove is provided to form the bearing position, and the fixing groove is used to place the positioning structure so that at least part of the outer wall of the positioning structure is pressed or abutted against the inner wall of the fixing groove.

[0013] In some embodiments, the fixing groove includes a receiving area and an open area that are interconnected, the receiving area is used to place the positioning structure, and the open area is provided with a sink extending to the receiving area.

[0014] In some embodiments, the fixing mechanism includes a supporting platform and a fixing member, the supporting platform is provided with the bearing position; the fixing member is connected to the supporting platform, and the fixing member is used to fix the positioning structure at the bearing position.

[0015] In some embodiments, the adjustment mechanism includes a first adjustment structure and a second adjustment structure, the first adjustment structure is used to drive the fixing mechanism to swing along a first direction to adjust the posture of the positioning structure in the first direction; the second adjustment structure is used to drive the fixing mechanism to swing along a second direction to adjust the posture of the positioning structure in the second direction; wherein, the first direction and the second direction are both parallel to the surface of the fixing mechanism, and the first direction and the second direction are perpendicular to each other.

[0016] In some embodiments, the adjustment mechanism further includes a third adjustment structure, which is used to drive the fixing mechanism to perform circular motion around its own axis; and / or, the adjustment mechanism further includes a fourth adjustment structure, which is used to drive the fixing mechanism to perform translation.

[0017] In some embodiments, the fixing mechanism, the first adjustment structure, the second adjustment structure and the third adjustment structure are stacked in sequence.

[0018] The test assist device proposed in this application uses a positioning structure to replace the product under test in aligning with the measuring device. The positioning structure can be precisely aligned with the measuring device and then fixed in position. The positioning structure can then be removed and the product under test placed on the support. The current measurement position is the optimal test position for the product under test. This replaces the alignment between the product under test and the measuring device, providing stable and consistent test results, improving alignment accuracy, and enhancing test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained from these drawings without any creative work.

[0020] Figure 1 A schematic diagram of the structure of the test auxiliary device proposed in this application;

[0021] Figure 2 This is a structural diagram of the positioning structure proposed in this application placed in the bearing position;

[0022] Figure 3 A schematic diagram of the structure of the support platform proposed for this application;

[0023] Figure 4 This is a schematic diagram of the first-perspective structure of the positioning structure proposed in this application;

[0024] Figure 5 This is a schematic diagram of the second perspective structure of the positioning structure proposed in this application;

[0025] Figure 6 This is a schematic diagram of the structure when the positioning structure proposed in the embodiment of the present application is not aligned with the measuring device;

[0026] Figure 7 This is a structural diagram of the positioning structure proposed in an embodiment of the present application when aligned with the measuring device.

[0027] Description of reference numerals:

[0028] 100. Test auxiliary device; 10. Positioning structure; 10a. First body; 10b. Second body; 11. Base; 12. Docking portion; 121. Docking surface; 13. Connecting portion; 20. Fixing mechanism; 20a. Load-bearing position; 21. Support platform; 211. Fixing groove; 211a. Accommodating area; 211b. Open area; 212. Sink; 22. Fixing member; 30. Adjusting mechanism; 31. First adjusting structure; 32. Second adjusting structure; 33. Third adjusting structure; 200. Measuring device; 210. Preset surface. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] It should be understood that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] It should also be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0032] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. For example, the terms "first," "second," and so on are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the term "first" or "second" may explicitly or implicitly include at least one of the features.

[0033] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0034] Currently, the application fields of smart wearable products are becoming increasingly extensive, such as AR glasses. As a wearable device that integrates high-tech optical and electronic components, the precise alignment of its optical modules is crucial to providing a high-quality visual experience.

[0035] However, existing alignment test methods mostly rely on manual adjustment and visual inspection, which is not only inefficient but also difficult to ensure consistent high-precision requirements. Specifically, the existing alignment test method is that people usually wear AR glasses to visually observe the images seen by the left and right eyes respectively, to determine whether there are problems such as offset, ghosting, blur, etc., and then manually adjust the position and angle of the AR glasses. However, since manual adjustment depends on the skills and experience of the operator, there are differences in skill levels between different operators, which will lead to inconsistency in the adjustment results. In addition, operators may make mistakes due to factors such as fatigue and lack of concentration, which will affect the alignment adjustment, and then affect the accuracy of the test results and the detection efficiency.

[0036] Since products such as AR glasses cannot be accurately aligned with the measuring device, an embodiment of the present application proposes a test auxiliary device for adjusting the alignment of AR glasses to be tested. A positioning structure compatible with the AR glasses is made using the AR glasses. The positioning structure simulates the scene of human eyes wearing AR glasses, and the positioning structure is adjusted to align with the measuring device through an adjustment mechanism, thereby replacing the product to be tested with the measuring device. When adjusted to the appropriate measurement position, the product to be tested is placed in the supporting position for testing, thereby providing stable and consistent test results, improving alignment accuracy, and improving detection efficiency.

[0037] See also Figures 1 to 3 The embodiment of the present application proposes a test auxiliary device 100, including a positioning structure 10, a fixing mechanism 20 and an adjustment mechanism 30. The positioning structure 10 is configured to be adapted to the product to be tested; the fixing mechanism 20 is provided with a bearing position 20a, the bearing position 20a is used to place the positioning structure 10 or the product to be tested; the adjustment mechanism 30 is connected to the fixing mechanism 20, and the adjustment mechanism 30 is used to drive the fixing mechanism 20 to move, so as to adjust the posture of the positioning structure 10 so that the positioning structure 10 and the measuring device 200 (such as Figure 6 and Figure 7 as shown).

[0038] The test assist device 100 proposed in this embodiment uses a positioning structure 10 to replace the product under test in aligning with the measuring device 200. Positioning structure 10 and measuring device 200 can be precisely aligned and fixed in position. Positioning structure 10 can then be removed and replaced with the product under test and placed on support position 20a. This measurement position is now the optimal testing position for the product under test. This allows alignment between the product under test and measuring device 200 to be performed, providing stable and consistent test results, improving alignment accuracy, and enhancing test efficiency.

[0039] Moreover, by setting up the adjustment mechanism 30, the movement of the fixing mechanism 20 can be automatically controlled to adjust the posture of the positioning structure 10, thereby reducing manual intervention and alignment errors. When it is necessary to test multiple products of different models, such as AR glasses of different models, the frame size, waveguide shape and thickness may be different. A plurality of matching positioning structures 10 can be made according to multiple AR glasses of different models, thereby replacing each AR glass with the measuring device 200 for alignment. At this time, the adjustment mechanism 30 can adjust the required different postures according to the multiple positioning structures 10 respectively, so as to adapt to different models of AR glasses, thereby increasing the versatility of the device.

[0040] See also Figures 1 to 3In some embodiments, the positioning structure 10 includes a base 11 and a docking portion 12 , the base 11 is used to be placed in the bearing position 20 a ; the base 11 is constructed to be compatible with the product to be tested; the docking portion 12 is provided on the base 11 , and the docking portion 12 has a docking surface 121 .

[0041] See also Figure 6 and Figure 7 , wherein the adjustment mechanism 30 is used to drive the fixing mechanism 20 to move, so as to adjust the docking surface 121 to be parallel to the preset surface 210 of the measuring device 200, and to align the center position of the docking surface 121 with the center position of the preset surface 210 of the measuring device 200.

[0042] Therefore, the setting of the base 11 can replace the product to be tested and place it on the supporting position 20a, and the setting of the docking part 12 and the docking surface 121 is conducive to precise alignment with the preset surface 210 of the measuring device 200, thereby providing stable and consistent test results, improving alignment accuracy, and enhancing test efficiency.

[0043] In some usage scenarios, the product to be tested may be AR glasses, and the measuring device 200 may be a binocular camera or a luminance meter, etc., for detecting the optical output of the AR glasses.

[0044] Taking AR glasses as an example, a prosthetic eye model can be made using the AR glasses model to simulate the optical properties of the human eye. The distance from the human eye to the light entrance of the measuring device 200 is extended above the display area of ​​the AR glasses, and the prosthetic eye model can be fully fitted with the measuring device 200 to ensure accurate alignment.

[0045] Among them, the artificial eye model is the docking part 12 proposed in the embodiment of the present application. The base 11 of the embodiment of the present application can be adapted to the lens ring size, waveguide shape and thickness of the AR glasses. The docking part 12 can be an artificial eye arranged at a preset position of the base 11. The position of the artificial eye corresponds to the position of the human eye when wearing AR glasses. The docking part 12 extends toward the top of the display area of ​​the AR glasses so that the docking surface 121 can be completely fitted with the preset surface 210 of the measuring device 200, thereby simulating the observation distance, angle and optical characteristics of the human eye to the AR glasses, thereby assisting the precise alignment of the measuring device 200.

[0046] Taking the luminance meter as an example, when the test auxiliary device 100 of the embodiment of the present application is used, the fixing mechanism 20 can be first installed on the adjustment mechanism 30 and fixed, and then the positioning structure 10 can be placed on the bearing position 20a of the fixing mechanism 20. The positioning structure 10 is used to replace the AR glasses and align with the luminance meter. After the positioning structure 10 is fixed, the extension of the docking portion 12 is moved to the light incident center of the luminance meter through the adjustment mechanism 30, and the posture of the positioning structure 10 is adjusted by the adjustment mechanism 30, that is, the position and angle of the positioning structure 10 are adjusted so that the preset surface 210 of the measuring device 200 is parallel to the docking surface 121 of the docking portion 12, that is, the light incident center plane of the luminance meter is kept horizontal with the extension surface of the artificial eye, and at the same time, the center position of the docking surface 121 is ensured to be aligned with the center position of the preset surface 210 of the measuring device 200, that is, the center of the artificial eye is ensured to be aligned with the light incident center of the luminance meter, and then the position is fixed.

[0047] As can be understood, when the center of the artificial eye is aligned with the incident light center of the luminance meter, this position can maximize the accuracy of the image quality, brightness, and other parameters output by the AR glasses. After alignment is complete, the positioning structure 10 is removed and the AR glasses are placed on the supporting position 20a of the fixing mechanism 20. The measurement position at this point is the optimal test position for the AR glasses.

[0048] See also Figure 4 In some embodiments, the positioning structure 10 includes a first body 10a and a second body 10b, each of which is provided with a base 11 and a docking portion 12. The first body 10a and the second body 10b are arranged in mirror-image symmetry. Thus, the arrangement of the first body 10a and the second body 10b allows for compatibility with products with mirror-image structures, such as AR glasses.

[0049] In some usage scenarios, the measuring device can be precisely aligned with the first body 10a and the second body 10b at the same time, or can be precisely aligned with the first body 10a and the second body 10b separately, which can be freely selected according to different test conditions.

[0050] In some embodiments, the positioning structure 10 further includes a connecting portion 13, and the first body 10a and the second body 10b are connected via the connecting portion 13. Thus, the connection portion 13 can maintain the relative position between the first body 10a and the second body 10b, so as to facilitate the placement of the positioning structure 10 as a whole in the supporting position 20a or removal.

[0051] In some embodiments, the first body 10a, the second body 10b and the connecting portion 13 may be integrally formed to facilitate processing.

[0052] Of course, in other embodiments, the connecting portion 13 may not be provided between the first body 10a and the second body 10b, and they may be provided separately.

[0053] See also Figure 2 and Figure 3 In some embodiments, the fixing mechanism 20 includes a support platform 21, which is provided with a fixing groove 211 to form a bearing position 20a. The fixing groove 211 is used to place the positioning structure 10 so that at least a portion of the outer wall of the positioning structure 10 presses against or abuts the inner wall of the fixing groove 211. Specifically, when the positioning structure 10 is placed in the bearing position 20a, the outer wall of its base 11 presses against or abuts the inner wall of the fixing groove 211. Therefore, through the provision of the fixing groove 211, the positioning structure 10 can be clamped in the fixing groove 211, thereby facilitating the fixing of the positioning structure 10.

[0054] In some embodiments, the fixing groove 211 includes a receiving area 211a and an open area 211b that are interconnected. The receiving area 211a is used to place the positioning structure 10, and the open area 211b is provided with a recessed groove 212 that extends into the receiving area 211a. The size of the receiving area 211a is adapted to the size of the base 11. Thus, the receiving area 211a can be used to place the positioning structure 10, and the recessed groove 212 in the open area 211b can facilitate the placement and removal of the positioning structure 10 into or out of the supporting position 20a.

[0055] See also Figures 1 to 3 In some embodiments, the fixing mechanism 20 includes a support platform 21 and a fixing member 22. The support platform 21 has a bearing position 20a. The fixing member 22 is connected to the support platform 21 and is used to fix the positioning structure 10 to the bearing position 20a. Therefore, the provision of the fixing member 22 can facilitate the fixing of the positioning structure 10.

[0056] In some embodiments, the fixing member 22 can be configured as an openable and closable clamping structure, thereby clamping the positioning structure 10 to the support position 20a. The clamping structure is not only convenient for fixing the positioning structure 10 to the support position 20a, but also easy to open or close, which is convenient for operation when the positioning structure 10 needs to be replaced with AR glasses, thereby improving efficiency.

[0057] Of course, in other embodiments, the fixing member 22 may also be an elastic band or other fixing means to fix the positioning structure 10 on the supporting position 20 a.

[0058] In some embodiments, when a connecting portion 13 is provided between the first body 10a and the second body 10b, the fixing member 22 can fix the connecting portion 13, for example, by using a clamping structure to clamp the connecting portion 13 to fix the positioning structure 10 on the supporting position 20a, while avoiding the docking portion 12 of the positioning structure 10 to avoid affecting the test position.

[0059] It is understood that in other embodiments, the fixing mechanism 20 may also include only the support platform 21, which is provided with a fixing groove 211. The positioning structure 10 or the product under test can be clamped in the fixing groove 211 to achieve positional fixation, thereby eliminating the need for the fixing member 22. Of course, on the basis of providing the fixing groove 211, the positioning structure 10 or the product under test is fixed by the fixing member 22, which can make the position of the positioning structure 10 or the product under test more stable and consistent, and prevent position deviation from affecting the test.

[0060] See also Figure 1 In some embodiments, the adjustment mechanism 30 includes a first adjustment structure 31 and a second adjustment structure 32. The first adjustment structure 31 is used to drive the fixing mechanism 20 to swing along a first direction to adjust the posture of the positioning structure 10 in the first direction; the second adjustment structure 32 is used to drive the fixing mechanism 20 to swing along a second direction to adjust the posture of the positioning structure 10 in the second direction. The first direction and the second direction are both parallel to the surface of the fixing mechanism 20 and perpendicular to each other. Therefore, the configuration of the first adjustment structure 31 and the second adjustment structure 32 can adjust the posture of the positioning structure 10 in two directions, thereby achieving precise alignment of the positioning structure 10 and the measuring device 200.

[0061] In some embodiments, the adjustment mechanism 30 further includes a third adjustment structure 33, which is configured to drive the fixing mechanism 20 to perform circular motion about its axis. The docking surface 121 may be an inclined surface, and the third adjustment structure 33 can be configured to drive the fixing mechanism 20 to rotate, thereby adjusting the orientation of the docking surface 121 to facilitate precise alignment of the positioning structure 10 and the measuring device 200.

[0062] In some usage scenarios, the first direction can be the arrangement direction of the first body 10a and the second body 10b, that is, the left and right direction, and the second direction is the front and back direction, that is, the first adjustment structure 31 can adjust the positioning structure 10 to swing left and right to adjust the posture of the positioning structure 10 in the left and right directions, that is, adjust the angle or orientation of the positioning structure 10 in the left and right directions. The second adjustment structure 32 can adjust the positioning structure 10 to swing back and forth to adjust the posture of the positioning structure 10 in the front and back directions, that is, adjust the angle or orientation of the positioning structure 10 in the front and back directions. Through the cooperation of the adjustment mechanism 30, the incident center plane of the luminance meter is kept level with the extension surface of the artificial eye, and at the same time, ensure that the center position of the docking surface 121 is aligned with the center position of the preset surface 210 of the measuring device 200.

[0063] In some embodiments, the fixing mechanism 20, the first adjustment structure 31, the second adjustment structure 32, and the third adjustment structure 33 are stacked in sequence. Specifically, the fixing mechanism 20 is mounted on the first adjustment structure 31, which is then mounted on the second adjustment structure 32. When the second adjustment structure 32 is actuated, it drives the first adjustment structure 31 and the fixing mechanism 20 to swing in the second direction. The second adjustment structure 32 is mounted on the third adjustment structure 33. When the third adjustment structure 33 is actuated, it drives the second adjustment structure 32, the first adjustment structure 31, and the fixing mechanism 20 to rotate. This arrangement results in a compact overall structure and reasonable localization of the adjustment mechanism 30.

[0064] Exemplarily, the adjustment mechanism 30 can adopt an electric six-axis mechanism, that is, the first adjustment structure 31, the second adjustment structure 32 and the third adjustment structure 33 can adopt servo motors as power sources, and provide power to each joint by precisely controlling the speed and position to achieve the above-mentioned left and right swing, front and back swing and circular rotation around its own axis.

[0065] In some embodiments, the adjustment mechanism 30 further includes a fourth adjustment structure, which is used to drive the fixing mechanism 20 to translate. Thus, by setting the fourth adjustment structure, the fixing mechanism 20 can be driven to translate to adjust the position of the fixing mechanism 20, thereby facilitating accurate alignment of the positioning structure 10 and the measuring device 200.

[0066] In some embodiments, the third adjustment structure 33 can be set on the fourth adjustment structure. When the fourth adjustment structure is driven, it drives the third adjustment structure 33, the second adjustment structure 32, the first adjustment structure 31 and the fixing mechanism 20 to translate as a whole.

[0067] For example, the fourth adjustment structure can be a motor coupled with a transmission structure to drive the fixing mechanism 20 to perform linear motion, such as a motor coupled with a chain drive, a belt drive, a rack and pinion drive, a screw and nut drive, etc., to achieve translation of the fixing mechanism 20. Of course, the fourth adjustment structure can also use a cylinder or other power source to drive the fixing mechanism 20 to perform translation.

[0068] Those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without mutual contradiction.

[0069] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A test auxiliary device, characterized in that: include: a positioning structure configured to fit the product to be tested; A fixing mechanism is provided with a bearing position, wherein the bearing position is used to place the positioning structure or the product to be tested; An adjusting mechanism is connected to the fixing mechanism, and is used to drive the fixing mechanism to move so as to adjust the posture of the positioning structure so that the positioning structure is aligned with the measuring device.

2. The test assisting device according to claim 1, wherein: The positioning structure includes: A base, used to be placed in the bearing position, and the base is configured to be compatible with the product to be tested; A docking portion, provided on the base, the docking portion having a docking surface; The adjusting mechanism is used to drive the fixing mechanism to move, so as to adjust the docking surface to be parallel to the preset surface of the measuring device, and to align the center position of the docking surface with the center position of the preset surface of the measuring device.

3. The test assisting device according to claim 2, wherein: The positioning structure includes a first body and a second body, and both the first body and the second body are provided with the base and the docking portion, and the first body and the second body are arranged in a mirror-symmetrical manner.

4. The test assisting device according to claim 3, wherein: The positioning structure further includes a connecting portion, and the first body and the second body are connected through the connecting portion.

5. The test assisting device according to claim 1, wherein: The fixing mechanism includes a supporting platform, a fixing groove is provided on the supporting platform to form the bearing position, and the fixing groove is used to place the positioning structure so that at least part of the outer wall of the positioning structure presses or abuts against the inner wall of the fixing groove.

6. The test assisting device according to claim 5, wherein: The fixing groove includes a receiving area and an open area which are communicated with each other. The receiving area is used to place the positioning structure. The open area is provided with a sink extending to the receiving area.

7. The test assisting device according to claim 1, wherein: The fixing mechanism comprises: A supporting platform is provided with the bearing position; A fixing member is connected to the supporting platform, and the fixing member is used to fix the positioning structure at the bearing position.

8. The test assisting device according to claim 1, wherein: The regulating mechanism comprises: a first adjusting structure, configured to drive the fixing mechanism to swing along a first direction, so as to adjust the posture of the positioning structure in the first direction; a second adjusting structure, configured to drive the fixing mechanism to swing along a second direction, so as to adjust the posture of the positioning structure in the second direction; The first direction and the second direction are both parallel to the surface of the fixing mechanism, and the first direction and the second direction are perpendicular to each other.

9. The test assisting device according to claim 8, wherein: The adjustment mechanism further includes a third adjustment structure, and the third adjustment structure is used to drive the fixing mechanism to perform circular motion around its own axis; and / or, The adjustment mechanism further includes a fourth adjustment structure, and the fourth adjustment structure is used to drive the fixing mechanism to translate.

10. The test assisting device according to claim 9, wherein: The fixing mechanism, the first adjusting structure, the second adjusting structure and the third adjusting structure are stacked in sequence.

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