Sample testing jig and testing apparatus

Abstract

The utility model relates to a kind of sample detection clamps and detection equipment, and it relates to secondary battery performance detection technical field.It is used to solve the technical problem that the clamp in prior art clamps different types of power battery, and then needs to frequently move detection equipment to correspond welding point, influence work efficiency.The sample detection clamp includes pedestal, drive seat, first drive component and clamp component, and drive seat is slidably connected with pedestal along first direction;The top of clamp component is equipped with the limiting space for placing sample;First drive component is connected with clamp component and drive seat, and first drive component is used to drive clamp component to move along second direction;First direction is perpendicular to second direction.The detection equipment includes detection device and above-mentioned sample detection clamp;First drive component and drive seat can drive sample to move to detection position, and detection device is used to detect sample located in detection position.

Description

Technical Field

[0001] This utility model relates to the field of secondary battery performance testing technology, specifically to a sample testing fixture and testing equipment. Background Technology

[0002] Power batteries are the core components of new energy vehicles. In the trial production of power battery PACK (power battery packaging), laser welding is applied to the combination welding of cell terminals and busbars within the PACK. The welding quality directly affects the safety, conductivity, and lifespan of the power battery. Therefore, before formal welding, it is necessary to weld a sample and then perform metallographic testing on the weld of the sample to detect the weld penetration, weld width, porosity, cracks, and other microstructures. This verifies the stability of the laser welding parameters and solidifies the laser welding parameters, thereby ensuring the welding quality.

[0003] In related technologies, when performing metallographic testing on laser-welded power battery samples, the power battery is typically clamped in a designated position using a fixture, and then tested using appropriate testing equipment. For example, existing technology discloses a fixing fixture for lithium battery testing. This fixing fixture includes a base and a push plate. A main fixture frame is welded to the upper surface of the base, and a fixing frame is welded to the inner surface of the main fixture frame. An electric push rod is installed inside the fixing frame, and a piston rod is connected to the outlet end of the electric push rod. A clamping plate is welded to the end of the piston rod. The movement of the two clamping plates is controlled by the electric push rod, and the distance between the two clamping plates can be adjusted according to the size of the lithium battery, facilitating the fixing of lithium batteries of different sizes. Although this fixing fixture can clamp power batteries of different sizes, due to the different structures and dimensions of different power batteries, the welding points of different power batteries will be located at different positions on the horizontal plane after the fixture clamps different types of power batteries. Therefore, it is necessary to frequently move the testing equipment to correspond to the welding points, which affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a sample testing fixture and testing equipment to at least solve the technical problem in related technologies where, after the fixture holds different types of power batteries, the testing equipment needs to be moved frequently to correspond to the welding points, which affects work efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: According to a first aspect of this application, a sample testing fixture is provided, comprising: Base; A drive seat, which is slidably connected to the base along a first direction; A first drive assembly and a clamp assembly, wherein the top of the clamp assembly is provided with a limiting space for placing a sample; the first drive assembly is connected to the clamp assembly and the drive base, and the first drive assembly is used to drive the clamp assembly to move along a second direction; the first direction is perpendicular to the second direction.

[0006] According to the above technical means, this application can clamp the sample with a clamping assembly, and drive the clamping assembly to move along the second direction through the first driving assembly, and drive the first driving assembly to move along the first direction through the driving seat, so as to adjust the position of the sample on the horizontal plane and align the detection device. For the detection of different samples, there is no need to frequently adjust the position of the detection device, thus increasing the detection efficiency.

[0007] In one possible implementation, the sample testing fixture further includes a second driving assembly, which is connected to both the base and the driving seat, and is used to drive the driving seat to move along the first direction.

[0008] According to the above-mentioned technical means, the second drive component can drive the drive seat to move along the first direction, thereby increasing the convenience of driving.

[0009] In one possible implementation, the base is provided with a vertical plate, and the second drive assembly includes a first screw, which passes through the vertical plate and is threadedly engaged with the vertical plate. The extension direction of the first screw is parallel to the first direction, and the end of the first screw is rotatably connected to the drive seat.

[0010] According to the above-mentioned technical means, during adjustment, the staff rotates the first screw. Since the position of the upright plate does not move, the first screw will move along its own length direction, thereby driving the drive seat to move along the first direction, making adjustment convenient.

[0011] In one possible implementation, the first drive assembly includes a drive block disposed on the drive seat, the drive block being slidably connected to the drive seat along the second direction, and the clamp assembly being connected to the drive block.

[0012] According to the above-mentioned technical means, the position of the fixture assembly and the sample on it in the second direction can be adjusted by moving the drive block relative to the drive seat in the second direction, which is convenient for adjustment.

[0013] In one possible implementation, the first drive assembly further includes a locking element connected to the drive block, the locking element being used to prevent the drive block from moving relative to the drive seat.

[0014] Based on the above technical means, and with the locking mechanism in place, once the position of the drive block is adjusted, the position of the drive block can be maintained by the locking mechanism, thereby maintaining the position of the sample and preventing the sample from moving during the testing or inspection process, thus increasing the accuracy of the test or inspection results.

[0015] In one possible implementation, the locking element includes a stop screw threadedly connected to the drive block to change the distance between the end of the stop screw and the drive seat.

[0016] According to the above technical means, after the drive block is adjusted to the correct position, the distance between the end of the stop screw and the drive seat can be changed by turning the stop screw until the stop screw abuts against the drive seat, thereby fixing the position of the drive block relative to the drive seat and making adjustment convenient.

[0017] In one possible implementation, the clamping assembly includes a support plate and a limiting assembly, the support plate being connected to the first driving assembly and the limiting assembly being connected to the support plate; the top of the support plate is provided with a clamping space, and the limiting assembly is used to hold the sample in the clamping space.

[0018] According to the above technical means, the sample is placed in the clamping space of the support plate and the sample is limited by the limiting component to maintain the position of the sample. This can effectively prevent the sample from moving during the detection or testing process and increase the accuracy of the detection or testing results.

[0019] In one possible implementation, the limiting component includes two limiting members spaced apart along the second direction, the limiting space being located between the two limiting members, and at least one of the limiting members being movable relative to the support plate along the second direction to change the size of the limiting space.

[0020] According to the above-mentioned technical means, the distance between two limiting members can be changed by moving at least one limiting member, thereby clamping the sample located in the limiting space. The operation is convenient and the clamping effect can be ensured.

[0021] In one possible implementation, the limiting member includes a base plate, a clamping plate, and a second screw. The base plate is connected to the support plate, the second screw passes through the base plate and is threadedly engaged with the base plate, the extension direction of the second screw is parallel to the second direction, and the clamping plate is disposed at the end of the second screw.

[0022] According to the above-mentioned technical means, during adjustment, the relative position of the second screw and the substrate is changed by rotating the second screw, and then the clamping plate is moved along the second direction by the second screw to change the distance between the two clamping plates, thereby clamping or releasing the sample. The operation is convenient and can provide a stable clamping force. In addition, it can be applied to different sizes of samples and has good compatibility.

[0023] According to a second aspect of this application, a testing device is provided, including a testing apparatus and the aforementioned sample testing fixture; the first driving assembly and the driving base are capable of moving the sample to a testing position, and the testing apparatus is used to test the sample located at the testing position. For details regarding the sample testing fixture, please refer to the description in the first aspect, which will not be repeated here. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0025] Figure 1 The diagram shown is a structural schematic of a sample testing fixture provided in an embodiment of this application. Figure 2 The diagram shown is a structural schematic diagram of a sample testing fixture provided in an embodiment of this application from another angle.

[0026] In the figure, 1—base; 11—vertical plate; 111—threaded seat; 12—first guide rail; 13—rib plate; 2—drive seat; 21—second guide rail; 22—bearing seat; 23—sliding plate; 3—first drive assembly; 31—drive block; 4—clamp assembly; 41—support plate; 42—limiting component; 421—base plate; 422—clamping plate; 423—second screw; 424—guide rod; 5—second drive assembly; 51—first screw; 511—rotating plate; 512—handle. Detailed Implementation

[0027] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0028] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0029] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0030] In the embodiments of this application, "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, where the range of similarity is within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0031] like Figure 1 As shown, the first aspect of this application provides a sample testing fixture, which includes a base 1, a drive seat 2, a first drive assembly 3, and a fixture assembly 4. The drive seat 2 is slidably connected to the base 1 along a first direction, wherein the first direction is... Figure 1 In the X-axis direction, the drive seat 2 can move relative to the base 1 along the X-axis direction. The top of the clamp assembly 4 is provided with a limiting space for placing the sample, within which the sample can be placed and held. The first drive assembly 3 is connected to the clamp assembly 4 and the drive seat 2, and is used to drive the clamp assembly 4 to move along a second direction, which is the X-axis direction. Figure 1 In the Y-axis direction, the first drive assembly 3 can drive the clamp assembly 4 to move along the Y-axis direction. The first direction is perpendicular to the second direction, allowing the drive seat 2 and the first drive assembly 3 to move the sample in the horizontal or vertical plane. Figure 1 Taking the illustrated embodiment as an example, both the first and second directions coincide with the horizontal plane. At this time, the drive seat 2 and the first drive component 3 can drive the sample to move on the horizontal plane.

[0032] Based on the sample testing fixture provided in this application, the sample can be clamped by the fixture assembly 4, and the fixture assembly 4 can be moved along the second direction by the first driving assembly 3. The first driving assembly 3 can be moved along the first direction by the driving seat 2, so as to adjust the position of the sample on the horizontal plane and align it with the testing device. For the testing of different samples, there is no need to frequently adjust the position of the testing device, thus increasing the testing efficiency.

[0033] In some embodiments, the position of the sample in the first direction can be adjusted by manually pushing the drive seat 2 to move along the first direction. In this case, in order to limit the position of the sample after it has moved, the drive seat 2 needs to be limited after it has moved into place. For example, the position of the drive seat 2 can be fixed by tightening the locking bolt, which is threaded with the drive seat 2, and by turning the locking bolt so that the end of the locking bolt is pressed against the base 1; or the locking bolt can be turned in the opposite direction to release the fixation of the drive seat 2, so that it can move along the first direction on the base 1.

[0034] In some embodiments, such as Figure 1 As shown, the sample testing fixture also includes a second driving component 5, which is connected to both the base 1 and the driving seat 2. The second driving component 5 is used to drive the driving seat 2 to move along the first direction.

[0035] With this design, the second drive component 5 can drive the drive seat 2 to move along the first direction, increasing the convenience of driving.

[0036] In some embodiments, such as Figure 1 As shown, a vertical plate 11 is provided on the base 1, and the extension direction of the vertical plate 11 is perpendicular to the horizontal plane. The second drive assembly 5 includes a first screw 51, which passes through the vertical plate 11 and is threadedly engaged with it. The extension direction of the first screw 51 is parallel to the first direction, and the end of the first screw 51 is rotatably connected to the drive seat 2. The connection method of the first screw 51 is described in detail below: A through hole is provided on the upright plate 11, and a threaded seat 111 is provided inside the through hole. The threaded seat 111 has an internal thread, and the outer circumference of the first screw 51 has an external thread, with the internal thread matching the external thread. During the rotation of the first screw 51, the first screw 51 can move relative to the upright plate 11 along the extension direction of the first screw 51 under the cooperation of the internal and external threads. The first screw 51 passes through the threaded seat 111, and a bearing seat 22 is provided on the side of the threaded seat 111 facing the first screw 51. A bearing is provided inside the bearing seat 22, and the axis of the bearing extends along a first direction. The bearing includes an inner ring and an outer ring that are rotatably connected and can rotate along the axis. The outer ring of the bearing is connected to the inner wall of the bearing seat 22, and one end of the first screw 51 is connected to the inner ring of the bearing, realizing the relative rotation of the first screw 51 and the drive seat 2. The other end of the first screw 51 is away from the drive seat 2 for operation by the operator.

[0037] With this design, during adjustment, the operator rotates the first screw 51. Since the position of the upright plate 11 remains unchanged, the first screw 51 will move along its own length direction, thereby driving the drive seat 2 to move along the first direction, making adjustment convenient.

[0038] In some embodiments, the upright plate 11 is disposed on the side of the drive seat 2 away from the clamp assembly 4, which makes the structural arrangement more reasonable and reduces space occupation.

[0039] In some embodiments, the base 1 is provided with a rib 13, one side of the rib 13 is connected to the base 1, and the other adjacent side of the rib 13 is connected to the upright plate 11. By providing the rib 13, the structural strength of the upright plate 11 can be increased.

[0040] In some embodiments, a rotating plate 511 is provided at one end of the first screw 51 away from the drive seat 2. The rotating plate 511 is fixedly connected to the first screw 51, and the rotation axis of the rotating plate 511 coincides with the rotation axis of the first screw 51. A handle 512 is provided on the side of the rotating plate 511 away from the first screw 51, and the handle 512 is eccentrically positioned.

[0041] With this design, the operator can rotate the first screw 51 by operating the handle 512, increasing the comfort of operation.

[0042] In some embodiments, combined with Figure 1 and Figure 2 As shown, a first guide rail 12 is provided on the base 1, and the extension direction of the first guide rail 12 is parallel to the first direction. The drive seat 2 is slidably connected to the first guide rail 12. Specifically, a sliding plate 23 is provided at the bottom of the drive seat 2, and the drive seat 2 is fixedly connected to the sliding plate 23. The sliding plate 23 is slidably connected to the first guide rail 12.

[0043] In this design, the first guide rail 12 guides the movement of the drive seat 2, thereby achieving stable and precise driving of the drive seat 2.

[0044] In other embodiments, the second drive assembly 5 includes an electric push rod, which includes a cylinder and a telescopic rod. The cylinder is connected to the base 1, one end of the telescopic rod is connected to the cylinder, and the other end of the telescopic rod is connected to the drive seat 2. The telescopic rod extends along a first direction, and the cylinder can drive the telescopic rod to move along the extension direction of the telescopic rod.

[0045] In this design, the cylinder can drive the telescopic rod to extend and retract, thereby moving the drive seat 2 along the first direction, achieving automated control, increasing adjustment accuracy, and the electric push rod has a self-locking function, which can maintain the position of the drive seat 2.

[0046] It is evident that the design of the second drive component 5 is unrestricted and can be selected according to actual needs.

[0047] In some embodiments, such as Figure 1 As shown, the first drive assembly 3 includes a drive block 31, which is disposed on the drive seat 2, specifically on one side of the drive seat 2. The drive block 31 and the drive seat 2 are slidably connected along the second direction, and the clamp assembly 4 is connected to the drive block 31.

[0048] With this design, the position of the clamp assembly 4 and the sample on it in the second direction can be adjusted by moving the drive block 31 relative to the drive seat 2 along the second direction, which is convenient for adjustment.

[0049] In some embodiments, a second guide rail 21 is provided on the side of the drive base 2, and the extension direction of the second guide rail 21 is parallel to the second direction. The drive block 31 is slidably connected to the second guide rail 21. In this design, the second guide rail 21 guides the movement of the drive block 31, thereby achieving stable and precise movement of the drive block 31.

[0050] In some embodiments, the first drive assembly 3 further includes a locking member connected to the drive block 31, which is used to prevent the drive block 31 from moving relative to the drive seat 2.

[0051] In this design, based on the setting of the locking component, after the position of the drive block 31 is adjusted, the position of the drive block 31 can be maintained by the locking component, thereby maintaining the position of the sample and preventing the sample from moving during the detection or testing process, thus increasing the accuracy of the test or detection results.

[0052] In some embodiments, the locking element includes a stop screw, which is threadedly connected to the drive block 31 to change the distance between the end of the stop screw and the drive seat 2. Specifically, the drive block 31 has a threaded hole, which is a through hole, and the end of the threaded hole is positioned opposite to the drive seat 2. By screwing the stop screw, the stop screw moves along its own length, thereby changing the distance between the end of the stop screw and the drive seat 2.

[0053] In this design, once the drive block 31 is adjusted to the correct position, the distance between the end of the stop screw and the drive seat 2 can be changed by turning the stop screw until the stop screw abuts against the drive seat 2, thus fixing the position of the drive block 31 relative to the drive seat 2 and making adjustment convenient.

[0054] In other embodiments, the first drive assembly 3 includes an electric push rod, which includes a cylinder and a telescopic rod. The cylinder is connected to the drive seat 2, one end of the telescopic rod is connected to the cylinder, and the other end of the telescopic rod is connected to the clamp assembly 4. The telescopic rod extends along a second direction, and the cylinder can drive the telescopic rod to move along the extension direction of the telescopic rod.

[0055] In this design, the cylinder can drive the telescopic rod to extend and retract, thereby moving the clamp assembly 4 along the second direction, achieving automated control, increasing adjustment accuracy, and the electric push rod has a self-locking function, which can maintain the position of the clamp assembly 4.

[0056] It is evident that the design of the first drive component 3 is unrestricted and can be selected according to actual needs.

[0057] In some embodiments, the clamping assembly 4 includes a support plate 41 and a limiting assembly. The plane of the support plate 41 is parallel to the horizontal plane. The support plate 41 is connected to a first driving assembly 3, which can drive the support plate 41 to move along a second direction. The limiting assembly is connected to the support plate 41. A clamping space is provided at the top of the support plate 41, and the sample is placed in the clamping space. The limiting assembly is used to hold the sample in the clamping space.

[0058] In this design, the sample is placed in the clamping space of the support plate 41 and the sample is limited by the limiting component to maintain the position of the sample. This can effectively prevent the sample from moving during the detection or testing process and increase the accuracy of the detection or testing results.

[0059] In some embodiments, such as Figure 1As shown, the limiting assembly includes two limiting members 42, which are spaced apart along a second direction. A limiting space is located between the two limiting members 42. At least one limiting member 42 can move relative to the support plate 41 along the second direction to change the size of the limiting space. That is, one limiting member 42 can move relative to the support plate 41 along the second direction, or both limiting members 42 can move relative to the support plate 41 along the second direction.

[0060] With this design, the distance between the two limiting members 42 can be changed by moving at least one limiting member 42, thereby clamping the sample located in the limiting space. This makes the operation convenient and ensures the clamping effect.

[0061] In some embodiments, continue to refer to Figure 1 The limiting member 42 includes a base plate 421, a clamping plate 422, and a second screw 423. The base plate 421 is connected to the support plate 41. The second screw 423 passes through the base plate 421 and is threadedly engaged with it. A screw hole is provided on the base plate 421. The second screw 423 passes through the screw hole and matches it, so that it can move along the second direction by rotating. The extension direction of the second screw 423 is parallel to the second direction. The clamping plate 422 is disposed at the end of the second screw 423.

[0062] In this design, during adjustment, the relative position of the second screw 423 and the substrate 421 is changed by rotating the second screw 423. This causes the clamping plate 422 to move along the second direction, thereby changing the distance between the two clamping plates 422. This allows for clamping or releasing the sample, making the operation convenient and providing a stable clamping force. Furthermore, it is suitable for different sizes of samples and has good compatibility.

[0063] In some embodiments, the limiting member 42 further includes a guide rod 424, which is parallel to the second screw 423. The guide rod 424 passes through the substrate 421 and slides in cooperation with the substrate 421. The end of the guide rod 424 is connected to the clamping plate 422.

[0064] In this design, the guide rod 424 guides the movement of the clamping plate 422, ensuring that the clamping plate 422 can move along the second direction.

[0065] In other embodiments, the limiting member 42 includes an electric push rod, which includes a cylinder and a telescopic rod. The cylinder is connected to the support plate 41, one end of the telescopic rod is connected to the cylinder, and the other end of the telescopic rod is provided with a clamping plate. The telescopic rod extends along a second direction, and the cylinder can drive the telescopic rod to move along the extension direction of the telescopic rod, thereby driving the clamping plate to move along the second direction.

[0066] In this design, the cylinder can drive the telescopic rod to extend and retract, thereby moving the clamping plate along the second direction to clamp the sample, achieving automated control, increasing adjustment accuracy, and the electric push rod has a self-locking function to maintain the position of the drive seat 2.

[0067] In some embodiments, the top of the support plate 41 is flat. In this case, the clamping space has no specific shape, and various shaped specimens can be placed within the clamping space (the top of the support plate 41). Alternatively, a groove can be provided on the top surface of the support plate 41. In this case, the clamping space is formed within the groove, and its shape matches the shape of the groove, allowing specimens matching the shape of the groove to be placed within it. For example, if the groove is circular, the specimen can be cylindrical; conversely, if the groove is rectangular, the specimen's cross-section can also be cylindrical.

[0068] As can be seen, the top surface shape of the support plate 41 and the shape of the clamping space of this application are not limited and can be designed according to actual needs.

[0069] In some embodiments, the sample comprises a battery, and a sample testing fixture is used to hold the battery. It is understood that the sample may also be other components, which may be selected according to actual needs.

[0070] In some embodiments, the sample testing fixture provided in this application can be the same as the metallographic testing of laser-welded power battery samples. Specifically, the power battery can be clamped by the sample testing fixture and the battery can be adjusted to the testing position for metallographic testing.

[0071] According to the second aspect of this application, a testing device is provided, including a testing apparatus and the aforementioned sample testing fixture; the first driving assembly 3 and the driving base 2 are capable of moving the sample to the testing position, and the testing apparatus is used to test the sample located at the testing position. For details regarding the sample testing fixture, please refer to the description in the first aspect, which will not be repeated here. The testing apparatus can be designed according to actual testing needs; for example, when used for weld inspection, the testing apparatus is a weld inspection instrument; when used for metallographic inspection, the testing apparatus is a metallographic analyzer. These are not limiting factors.

[0072] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sample testing fixture, characterized in that, include: Base (1); Drive seat (2), the drive seat (2) is slidably connected to the base (1) along a first direction; The first drive assembly (3) and the clamp assembly (4) are provided with a limiting space for placing the sample on the top of the clamp assembly (4); the first drive assembly (3) is connected to the clamp assembly (4) and the drive seat, and the first drive assembly (3) is used to drive the clamp assembly (4) to move along the second direction; the first direction is perpendicular to the second direction.

2. The sample testing fixture according to claim 1, characterized in that, The sample testing fixture also includes a second driving component (5), which is connected to both the base (1) and the driving seat (2). The second driving component (5) is used to drive the driving seat (2) to move along the first direction.

3. The sample testing fixture according to claim 2, characterized in that, The base (1) is provided with a vertical plate (11), and the second drive assembly (5) includes a first screw (51). The first screw (51) passes through the vertical plate (11) and is threadedly engaged with the vertical plate (11). The extension direction of the first screw (51) is parallel to the first direction, and the end of the first screw (51) is rotatably connected to the drive seat (2).

4. The sample testing fixture according to any one of claims 1 to 3, characterized in that, The first drive assembly (3) includes a drive block (31), which is disposed on the drive seat (2). The drive block (31) and the drive seat (2) are slidably connected along the second direction. The clamp assembly (4) is connected to the drive block (31).

5. The sample testing fixture according to claim 4, characterized in that, The first drive assembly (3) further includes a locking member connected to the drive block (31) and the locking member is used to prevent the drive block (31) from moving relative to the drive seat (2).

6. The sample testing fixture according to claim 5, characterized in that, The locking element includes a stop screw that is threadedly connected to the drive block (31) to change the distance between the end of the stop screw and the drive seat (2).

7. The sample testing fixture according to any one of claims 1 to 3, characterized in that, The clamping assembly (4) includes a support plate (41) and a limiting assembly. The support plate (41) is connected to the first driving assembly (3), and the limiting assembly is connected to the support plate (41). The top of the support plate (41) is provided with a clamping space, and the limiting assembly is used to hold the sample in the clamping space.

8. The sample testing fixture according to claim 7, characterized in that, The limiting component includes two limiting members (42) which are spaced apart along the second direction. The limiting space is located between the two limiting members (42). At least one of the limiting members (42) can move relative to the support plate (41) along the second direction to change the size of the limiting space.

9. The sample testing fixture according to claim 8, characterized in that, The limiting member (42) includes a base plate (421), a clamping plate (422), and a second screw (423). The base plate (421) is connected to the support plate (41). The second screw (423) passes through the base plate (421) and is threadedly engaged with the base plate (421). The extension direction of the second screw (423) is parallel to the second direction. The clamping plate (422) is disposed at the end of the second screw (423).

10. A testing device, characterized in that, The device includes a detection apparatus and a sample detection fixture as described in any one of claims 1 to 9; the first drive assembly (3) and the drive seat (2) are capable of moving the sample to the detection position, and the detection apparatus is used to detect the sample located at the detection position.

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