Test auxiliary fixing device and test auxiliary fixing equipment

Abstract

According to the test auxiliary fixing device and the test auxiliary fixing equipment provided by the embodiment of the utility model, the test auxiliary fixing equipment comprises at least two test auxiliary devices which are used for clamping different positions of the test sample, so that the clamping stability of the test sample is ensured, and the stability of the test process is ensured. The test auxiliary fixing device provided by the invention comprises a base, a supporting column and a clamping assembly. The supporting column is arranged on the base and used for supporting the clamping assembly, the clamping assembly comprises a fixing piece and a grabbing clamp, the grabbing clamp is used for clamping a test sample, the grabbing clamp can rotate relative to the fixing piece, the grabbing clamp can be fixed to the fixing piece at determined positions in the rotating process, and the determined positions can be at least two different positions; therefore, the test auxiliary fixing device can fix the test sample at the determined positions matched with different test jigs, so that the test sample can meet different test requirements, and the test convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of test equipment, and more specifically, to a test auxiliary fixing device and a test auxiliary fixing equipment. Background Art

[0002] Currently, before leaving the factory, electronic devices such as switches or servers need to be tested to ensure product quality. The pre - factory testing of electronic devices such as switches or servers usually includes interface consistency testing.

[0003] With the increase in test items and the change of test fixtures, as a test sample, the device under test needs to adapt to different test items and test fixtures. Restricted by some test fixtures, the device under test needs to be maintained at a certain fixed position, but the positions that the device under test can maintain by itself are limited, making the test sample unable to adapt to different test fixtures and unable to meet different test requirements.

[0004] In summary, how to enable the test sample to adapt to different test requirements for testing to improve the convenience of testing is an urgent problem for those skilled in the art in the current field. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a test auxiliary fixing device and a test auxiliary fixing equipment, enabling the test sample to adapt to different test requirements for testing to improve the convenience of testing.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] A test auxiliary fixing device includes: a base, a support column, and a clamping assembly; wherein, the support column is arranged on the base and is used to support the clamping assembly; the clamping assembly includes a fixing member and a gripper capable of clamping a test sample, the fixing member connects the support column and the gripper, the gripper can rotate relative to the fixing member, and the gripper can be fixedly connected to the fixing member at at least two positions during the rotation of the gripper.

[0008] In some embodiments, the fixing member includes: a collar sleeved on the support column, and the collar can move axially along the support column; a connecting rod, the length direction of the connecting rod is perpendicular to the axial direction of the collar, and the connecting rod is fixedly connected to the collar; a fixing plate arranged at one end of the connecting rod away from the collar, the connecting rod passes through the fixing plate and the gripper, and the connecting rod is fixedly connected to the fixing plate;

[0009] Wherein, the clip can rotate around the connecting rod and rotate relative to the fixed plate, and the clip and the fixed plate can be fixedly connected at at least two positions during the rotation of the clip.

[0010] In some embodiments, one of the fixed plate and the clip is provided with a limiting post, and the other is provided with a limiting hole; wherein, there are at least two limiting posts, and all the limiting posts are equidistantly distributed along the same circumference; the number of the limiting holes corresponds to the number of the limiting posts one by one, or the number of the limiting holes is a multiple of the number of the limiting posts.

[0011] In some embodiments, the clip includes: clamping plates, the clamping plates are symmetrically arranged in two, and the two clamping plates are used for clamping the test sample; a connecting plate, the connecting plate connects the two clamping plates; wherein, the connecting rod passes through the connecting plate, and the limiting post or the limiting hole is arranged on the connecting plate;

[0012] A locking assembly is arranged on the clip for locking the two clamping plates so that the two clamping plates clamp the test sample.

[0013] In some embodiments, a connecting side plate is arranged between the connecting plate and the clamping plate, the locking assembly includes an adjusting screw and a locking nut, the adjusting screw is threadedly connected to both of the clamping plates, and the adjusting screw is a bidirectional threaded rod;

[0014] Alternatively, the locking assembly is a torsion spring, and the torsion spring is used for connecting the clamping plate and the connecting plate.

[0015] In some embodiments, the connecting rod and the fixed plate are integrally formed; one end of the connecting plate connected to the connecting plate is provided with a thread, and the fixed plate, the connecting rod and the connecting plate are fixedly connected by a fixing nut.

[0016] In some embodiments, pads are arranged on the inner sides of the two clamping plates facing each other.

[0017] In some embodiments, the clamping assembly can move along the axial direction of the support column, and the clamping assembly can be fixedly connected to the support column at at least two positions during the movement.

[0018] In some embodiments, the support column is a screw rod, a limiting nut is arranged on the screw rod, and the clamping assembly is fixed to the screw rod through the limiting nut.

[0019] A test auxiliary fixing device includes a test auxiliary fixing means, and there are at least two test auxiliary fixing means and they are used for clamping at different positions of the test sample.

[0020] The test auxiliary fixing device provided by the present application includes a base, a support column, and a clamping assembly. The support column is arranged on the base and is used to support the clamping assembly. The clamping assembly includes a fixing member and a gripper. The gripper is used to clamp a test sample. The gripper can rotate relative to the fixing member, and the gripper can be fixed to the fixing member at a determined position during the rotation. The determined position can be at least two different positions, so that the test auxiliary fixing device can fix the test sample at a determined position adapted to different test jigs, enabling the test sample to meet the requirements of different tests and improving the convenience of testing. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0022] Figure 1 Isometric view of the test auxiliary fixing device provided by the embodiment of the present application;

[0023] Figure 2 Isometric view of the test auxiliary fixing device provided by the embodiment of the present application;

[0024] Figure 3 Schematic structural view of the clamping assembly of the test auxiliary fixing device provided by the embodiment of the present application;

[0025] Figure 4 Is Figure 3 Partial structural view of the clamping assembly in

[0026] Figure 5 Schematic view of the locking assembly of the test auxiliary fixing device provided by the embodiment of the present application.

[0027] Explanation of the reference numerals:

[0028] 1 is the base, 2 is the support column, 3 is the limit nut, 4 is the clamping assembly, 41 is the collar, 42 is the connecting rod, 43 is the fixing plate, 431 is the limit post, 44 is the fixing nut, 45 is the gripper, 451 is the limit hole, 452 is the through hole, 453 is the clamping plate, 454 is the connecting plate, 455 is the connecting side plate, 46 is the spacer, 5 is the locking assembly, 51 is the adjusting screw, 52 is the locking nut, 6 is the test sample, and 100 is the test auxiliary fixing device. Detailed Description of the Embodiments

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described. The terms used in the following embodiments are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the specification and claims of the present application, the singular forms "a", "an", "the", "above", "said", "this" are also intended to include the forms such as "one or more", unless there is a clear contrary indication in the context.

[0031] Reference to "one embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0032] The "parallel" and "perpendicular" involved in the present application are "substantially parallel" and "substantially perpendicular" in actual operation. "Substantially parallel" can be understood as parallel with a certain error. Similarly, "substantially perpendicular" can be understood as perpendicular with a certain error.

[0033] Currently, when performing interface consistency testing on a test sample, the interface of the device under test needs to be docked with the interface of the test fixture. The test fixture is connected to the test instrument through a test cable. The length of the test cable is limited, and to ensure the test results, the test cable cannot be bent. In this way, in some cases, the interface of the test fixture can only face a certain determined direction, which also makes the interface of the device under test can only be docked with the interface of the test fixture in a certain determined direction. And switches or servers, as the devices under test, are usually placed flat on a plane and cannot be docked with test fixtures at different positions, unable to meet different test requirements.

[0034] To solve the above technical problems, the embodiments of the present application provide a test auxiliary fixing device and a test auxiliary fixing equipment.

[0035] As Figures 1 - 5 shown, the test auxiliary fixing device 100 provided by the embodiment of the present application is used to clamp a test sample. The test auxiliary fixing device includes at least two test auxiliary devices 100 for clamping at different positions of the test sample 6, ensuring the stability of clamping the test sample 6, and thus ensuring the stability of the test process.

[0036] Exemplarily, as Figure 1 shown, the test auxiliary fixing device includes two test auxiliary fixing devices 100, and the two test auxiliary test devices 100 are symmetrically distributed and clamped on both sides of the test sample 6, improving the stability of clamping the test sample 6.

[0037] In some other embodiments, the test auxiliary fixing device includes three test auxiliary fixing devices 100, and the three test auxiliary fixing devices 100 are respectively clamped on three sides of the non-interface end of the test sample 6, further improving the stability of clamping the test sample 6.

[0038] Certainly, to ensure the stability of the test sample 6 during the test process, the test auxiliary fixing device may also include four, five or more test auxiliary fixing devices 100, and the embodiments of the present application do not limit this.

[0039] The test auxiliary fixing device 100 will be specifically described below.

[0040] As Figures 1 - 5 shown, the test auxiliary fixing device 100 provided by the embodiment of the present application includes a base 1, a support column 2 and a clamping assembly 4. Among them, the support column 2 is arranged on the base 1 and is used to support the clamping assembly 4 so that the clamping assembly 4 is maintained at a set height, providing a prerequisite for clamping the test sample 6; the clamping assembly 4 can be used to clamp the test sample.

[0041] The clamping assembly 4 includes a fixing member and a gripper 45. The fixing member can connect the support column 2 and the gripper 45, and the test sample 6 is clamped by the gripper 45. The gripper 45 can rotate relative to the fixing member, and the gripper 45 can be fixed to the fixing member at a determined position during the rotation. The determined position can be at least two different positions, so that the test auxiliary fixing device 100 can fix the test sample 6 at a determined position adapted to different test fixtures, enabling the test sample 6 to meet the requirements of different tests and improving the convenience of the test.

[0042] As Figure 3As shown, the fixing member includes a collar 41, a connecting rod 42, a fixing plate 43 and a gripper 45. The collar 41 is sleeved on the support column 2, and the collar 41 can move axially along the support column 42. The length direction of the connecting rod 42 is perpendicular to the axial direction of the collar 41, and the connecting rod 42 is fixedly connected to the collar 42. The connecting rod 42 can pass through the fixing plate 43 and the gripper 45 and be fixedly connected to the fixing plate 43. In this way, the fixing member can drive the gripper 45 to move axially along the support column 2, thereby adjusting the clamping height of the clamping assembly 4, so that the clamping assembly 4 can clamp the test sample 6 for height adjustment, expanding the height range that the test sample 6 can be docked with.

[0043] In actual situations, a limiting member is provided on the support column 2, which can cooperate with the support column 2 during the axial movement of the clamping assembly 4 along the support column 2 to limit the height of the clamping assembly 4, so that the clamping assembly 4 is relatively fixed to the support column 2 at at least two positions.

[0044] Exemplarily, as Figure 1 and Figure 2 shown, the support column 2 is a screw rod, and a threaded hole is provided on the base 1, which can be threadedly connected to the screw rod. Two limiting nuts 3 are provided on the screw rod. During use, after the upper limiting nut 3 is unscrewed from the screw rod, the collar 41 is sleeved on the screw rod and the collar 41 is adjusted to the specified height. Then, the lower limiting nut 3 is screwed upward so that the lower limiting nut 3 abuts against the collar 41. Then, the upper nut 3 is screwed downward and abuts against the collar 41, thereby limiting the height of the clamping assembly 4.

[0045] In some other embodiments, the support column 2 is a light column, and a damping ring is provided on the support column 2. The damping ring can move axially on the light column and be fixed at a determined position, and can abut against the collar 41 to limit the height of the clamping assembly 4.

[0046] Such as Figure 4 shown, the collar 41 and the connecting rod 42 are integrally formed, making the overall structure of the fixing member more stable.

[0047] In some embodiments, the collar 41 and the connecting rod 42 are of a split structure, and the collar 41 is inserted or threadedly connected to the connecting rod 42, facilitating the disassembly of the collar 41 and the connecting rod 42.

[0048] In some other embodiments, a through hole is directly opened at one end of the connecting rod 42, and the connecting rod 42 is sleeved and connected to the support column 2 through the through hole, which can reduce the manufacturing process of the fixing member and simplify the structure of the fixing member.

[0049] In some other embodiments, the connecting rod 42 can also be a connecting plate, a connecting column, etc., and the embodiments of the present application do not make any limitations in this regard.

[0050] Such as Figure 3As shown, the fixing member further includes a fixing plate 43, which is arranged at one end of the connecting rod 42 away from the collar 41. The connecting rod 42 can pass through the fixing plate 43 and the gripper 45, and the connecting rod 42 is fixedly connected to the fixing plate 43. The gripper 45 can rotate around the connecting rod 42 and relative to the fixing plate 43, and at at least two positions during the rotation of the gripper 45, the gripper 45 can be fixedly connected to the fixing plate 43.

[0051] Exemplarily, as Figure 3 shown, the connecting rod 42 and the fixing plate 43 are integrally formed. One end of the connecting rod 2 passing through the gripper 45 is provided with a thread, and the gripper 45 passes through the connecting rod 2 and is fixedly connected to the fixing plate 43 through a fixing nut 44, so that the clamping angle of the gripper 45 can be fixed.

[0052] In some other embodiments, the connecting rod 42 is a threaded rod, and the fixing plate 43 is provided with a through hole through which the threaded rod can pass. A nut is arranged on the threaded rod. During use, after passing the fixing plate 43 through the threaded rod, the nut is screwed in so that the nut abuts against the side of the fixing plate 43 away from the gripper 45, and then the gripper 45 is passed through the threaded rod and abuts against the fixing plate 43, and then the fixing nut 44 is screwed in to fix the gripper 45. In this way, without adjusting the base 1, the distance between the two clamping assemblies 4 can be adjusted to adapt to test samples 6 of different sizes.

[0053] In some other embodiments, a limiting shoulder is arranged on the connecting rod 42, and the fixing plate 43 is provided with a through hole through which the connecting rod 42 can pass. After the fixing plate 43 passes through the connecting rod 42, the position of the fixing plate 43 in the length direction of the connecting rod 42 is limited by the limiting shoulder.

[0054] Since the test sample 6 is an electronic device such as a switch or a server and has a certain weight, in order to ensure the stability of the clamping assembly 4 after clamping the test sample 6, a limiting member needs to be provided. A limiting post 431 is arranged on one of the fixing plate 43 and the gripper 45, and a limiting hole 451 is arranged on the other. Specifically, there are at least two limiting posts 431, and all the limiting posts 431 are equidistantly distributed along the same circumference, and the number of the limiting holes 451 corresponds to the number of the limiting posts 431 one by one.

[0055] In some other embodiments, the number of the limiting holes 451 can also be a multiple of the number of the limiting posts 431.

[0056] Exemplarily, as Figure 4 and Figure 5As shown in the figure, the fixing plate 431 is provided with six limiting posts 431 that are equally spaced along the same circumference. There are six limiting holes 451 corresponding to the limiting posts 431 on the gripper 45, through which the limiting posts 431 can pass correspondingly, enabling the gripper 45 to be adjusted to 0°, 60°, 120°, 180°, 240°, 300°, and 360°. When the angle of the gripper 45 needs to be adjusted, first disengage the limiting hole 451 from the limiting post 431, and then rotate the gripper 45 so that the limiting hole 451 corresponding to another angle cooperates with the limiting post 431 correspondingly, thereby fixing the gripper 45 at another specified angle. In this way, the stability of the gripper 45 after clamping the test sample 6 is further ensured.

[0057] Of course, there can be two limiting posts 431, and the limiting holes 451 can be two, four, six, etc.; or there are three limiting posts 431, and the limiting holes 451 can be three, six, nine, etc. The specific numbers of the limiting posts 431 and the limiting holes 451 are not limited in the embodiments of the present application.

[0058] As Figure 5 shown, the gripper 45 includes clamping plates 453 and a connecting plate 454. Specifically, there are two symmetrically arranged clamping plates 453 for clamping the test sample 6, and the connecting plate 454 connects the two clamping plates 453, and a through hole 452 through which the connecting rod 42 can pass is provided on the connecting plate 454.

[0059] It should be noted that the limiting posts 431 or the limiting holes 451 are provided on the connecting plate 454. Exemplarily, as Figure 5 shown, the connecting plate 454 is provided with limiting holes 451.

[0060] In actual situations, cushion blocks 46 are provided on the inner sides of the two clamping plates 453 facing each other. The cushion blocks 46 can be deformed and have a buffering effect. For example, the cushion blocks 46 are made of a softer material, such as a rubber block, a sponge block, etc. By clamping the test sample 6 with the cushion blocks 46, protection is provided for the clamped surface of the test sample 6.

[0061] In order to provide stable clamping for the test sample 6, a locking assembly 5 is provided on the gripper 45. The locking assembly 5 can lock the two clamping plates 453 relative to each other so that the two clamping plates 453 can clamp the test sample 6.

[0062] In some embodiments, as Figure 5As shown, a connecting side plate 455 is provided between the connecting plate 454 and the clamping plate 453, and an angle is formed between the connecting plate 454 and the connecting side plate 455, and between the connecting side plate 455 and the clamping plate 453, and the connecting plate 454, the connecting side plate 455, and the clamping plate 453 can all rotate around the angle. The locking assembly 5 includes an adjusting screw 51 and a locking nut 52, the adjusting screw 51 is threadedly connected to the two clamping plates 453, and the adjusting screw 51 is a bidirectional threaded rod, and the two clamping plates 453 are provided with threaded holes that cooperate with the adjusting screw 451. When in use, unscrew the locking nut 52 and rotate the adjusting screw 51 counterclockwise to increase the distance between the two clamps 453. Place the test sample 6 between the two clamps 453, then rotate the adjusting screw 51 clockwise to reduce the distance between the two clamps 453. After the test sample 6 is clamped, tighten the locking nut 52 on the adjusting screw 51 to fix the distance between the two clamps 453.

[0063] In some other embodiments, the connecting plate 454 and the two clamps 453 are connected by a torsion spring. When in use, the two clamps 453 are opened in opposite directions, and the test sample 6 is placed between the two clamps 453. Then, the two clamps 453 are loosened. Under the action of the torsion spring, the two clamps 453 relatively clamp the test sample 6, thereby achieving the clamping of the test sample 6.

[0064] In some other embodiments, the connecting plate 454 and the two clamping plates 453 are connected via a damping shaft. Under the action of the damping shaft, the two clamping plates 453 are fixed at a clamping angle, thereby clamping the test sample 6.

[0065] When the test auxiliary fixing device provided in this embodiment is used, first, the test auxiliary fixing device is set into two groups, the distance between the two groups of test auxiliary fixing devices is adjusted, the support column 2 is threadedly connected to the base 1, and then the ring 41 is sleeved on the support column 2. After adjusting the clamping assembly 4 to a suitable height, the limit nut 3 is screwed in to fix the ring 41, and then the interface orientation of the corresponding test sample 6 is made to make the limit hole 451 on the grab clamp 45 correspond to the limit column 431 on the fixing plate 43 respectively, and after the connecting rod 42 passes through the through hole 452 on the grab clamp 45, the grab clamp 45 is abutted against the fixing plate 43, and then the fixing nut 44 is threadedly connected to the connecting rod 42 to fix the grab clamp 45 in the specified position. Then, the locking nut 52 is unscrewed, and the adjusting screw 51 is rotated counterclockwise to increase the distance between the two clamping plates 453. The test sample 6 is placed between the two clamping plates 453, and then the adjusting screw 51 is rotated clockwise to reduce the distance between the two clamping plates 453. After the test sample 6 is clamped, the locking nut 52 is tightened on the adjusting screw 51 to fix the distance between the two clamping plates 453. In this way, the test sample 6 can be fixed at different positions corresponding to the test fixture to meet different test requirements.

[0066] Since the test auxiliary fixing device 100 has the above technical effects, and the test auxiliary fixing equipment provided by the embodiments of the present application includes the above test auxiliary fixing device 100, the test auxiliary fixing equipment provided by the embodiments of the present application also has corresponding technical effects, which will not be elaborated herein.

[0067] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test auxiliary fixing device, characterized in that: include: Base (1), support column (2), clamping assembly (4); Wherein, the support column (2) is arranged on the base (1) and is used to support the clamping assembly (4); The clamping assembly (4) comprises a fixing member and a gripping clamp (45) capable of gripping a test sample (6); the fixing member connects the support column (2) and the gripping clamp (45); the gripping clamp (45) is capable of rotating relative to the fixing member, and the gripping clamp (45) is capable of being fixedly connected to the fixing member at at least two positions during the rotation of the gripping clamp (45).

2. The test auxiliary fixture according to claim 1, characterized in that: The fixing member comprises: A collar (41), the collar (41) being sleeved on the support column (2), and the collar (41) being able to move along the axial direction of the support column (2); A connecting rod (42), wherein the length direction of the connecting rod (42) is perpendicular to the axial direction of the collar (41), and the connecting rod (42) is fixedly connected to the collar (41); a fixing plate (43), the fixing plate (43) being arranged at one end of the connecting rod (42) away from the collar (41), the connecting rod (42) passing through the fixing plate (43) and the grabbing clamp (45), and the connecting rod (42) being fixedly connected to the fixing plate (43); The gripping clamp (45) is capable of rotating about the connecting rod (42) and relative to the fixing plate (43), and the gripping clamp (45) is capable of being fixedly connected to the fixing plate (43) at least at two positions during the rotation of the gripping clamp (45).

3. The test auxiliary fixture according to claim 2, characterized in that: One of the fixing plate (43) and the grabbing clamp (45) is provided with a limiting column (431), and the other is provided with a limiting hole (451); There are at least two limiting posts (431), and all the limiting posts (431) are equidistantly distributed along the same circumference; The number of the limiting holes (451) corresponds to the number of the limiting columns (431) one by one, or the number of the limiting holes (451) is a multiple of the number of the limiting columns (431).

4. The test auxiliary fixture according to claim 3, characterized in that: The gripper (45) comprises: A clamping plate (453), wherein two clamping plates (453) are symmetrically arranged, and the two clamping plates (453) are used to clamp the test sample (6); A connecting plate (454), wherein the connecting plate (454) connects the two clamping plates (453); Wherein, the connecting rod (42) passes through the connecting plate (454), and the limiting column (431) or the limiting hole (451) is arranged on the connecting plate (454); The gripping clamp (45) is provided with a locking assembly (5) for locking the two clamping plates (453) so that the two clamping plates (453) clamp the test sample (6).

5. The test auxiliary fixture according to claim 4, characterized in that: A connecting side plate (455) is provided between the connecting plate (454) and the clamping plate (453); the locking assembly (5) comprises an adjusting screw (51) and a locking nut (52); the adjusting screw (51) is threadedly connected to the two clamping plates (453); and the adjusting screw (51) is a bidirectional threaded rod; Alternatively, the locking assembly (5) is a torsion spring, and the torsion spring is used to connect the clamping plate (453) and the connecting plate (454).

6. The test auxiliary fixture according to claim 4, characterized in that: The connecting rod (42) and the fixing plate (43) are integrally formed; One end of the connecting rod (42) connected to the connecting plate (454) is provided with a thread, and the fixing plate (43), the connecting rod (42) and the connecting plate (454) are fixedly connected via a fixing nut (44).

7. The test auxiliary fixture according to claim 4, characterized in that: Pads (46) are provided on the opposite inner sides of the two clamping plates (453).

8. The test auxiliary fixture according to any one of claims 1 to 7, characterized in that: The clamping assembly (4) is capable of moving along the axial direction of the support column (2), and the clamping assembly (4) is capable of being fixedly connected to the support column (2) at at least two positions during the movement.

9. The test auxiliary fixture according to claim 8, characterized in that: The support column (2) is a screw rod, a limiting nut (3) is provided on the screw rod, and the clamping assembly (4) is fixed to the screw rod via the limiting nut (3).

10. A test auxiliary fixing device, characterized in that: It comprises a test auxiliary fixing device (100) as described in any one of claims 1 to 9, wherein there are at least two of the test auxiliary fixing devices (100) and they are used to clamp the test sample (6) at different positions.

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