Mechanical test fixture

Abstract

The utility model relates to a mechanical test fixture. The mechanical test fixture comprises two positioning substrates which are spaced from each other and are oppositely arranged; the supporting assembly comprises two sliding rails, the two sliding rails are located on the opposite surfaces of the two positioning base plates respectively, the two sliding rails jointly define a sliding rail extending in the first direction, and the two ends of any sliding rail are provided with flanging parts folded in the direction away from the other sliding rail. The two flanging parts are in lap joint with the two end faces, in the first direction, of the corresponding positioning base plate correspondingly; each flanging part is correspondingly provided with a crimping part and a first connecting part, the crimping part is crimped on the surface, deviating from the positioning substrate, of the corresponding flanging part, and the first connecting part penetrates through the crimping part and the flanging part and fixes the crimping part and the flanging part on the positioning substrate. According to the mechanical test fixture, the mechanical test result is more accurate, and the real product quality of a server can be reflected more appropriately.

Description

Technical Field

[0001] The utility model relates to the technical field of server performance testing, in particular to a mechanical testing fixture. Background Art

[0002] With the development of Internet technology, servers are increasingly playing an important role in the field of the Internet. When the computer room is working normally, vibration will be transmitted between the servers in the cabinet, which will affect the function of the server. In order to ensure the delivery quality of general servers, the server will undergo corresponding mechanical vibration tests and other mechanical tests before delivery, and the performance, reliability and durability of the product in a vibration environment can be evaluated based on this, so as to determine the defects in the product design and manufacturing process and correct them. When conducting mechanical tests, the server must be fixed on the vibration table with a fixture. Usually, the server needs to be placed on the surface of the workbench, and the server is pressed and fixed on the workbench by a pressure strip for mechanical testing. However, in the mechanical test conducted in this way, the server is unevenly stressed, which will lead to deviations in the test results, and often cannot reflect the true product quality of the server. Utility Model Content

[0003] Based on this, it is necessary to provide a mechanical testing fixture so that the mechanical test results can accurately reflect the stress state of the server during actual use, so that the mechanical test results can more accurately and more appropriately reflect the actual product quality of the server.

[0004] The mechanical testing fixture provided in the embodiment of the present application includes:

[0005] two positioning substrates, the two positioning substrates are spaced apart from each other and arranged opposite to each other; and

[0006] A support assembly, the support assembly includes two slide rails, the two slide rails are respectively located on opposite surfaces of two positioning substrates, the two slide rails jointly define a sliding track extending along a first direction, and two ends of any slide rail are provided with flanges folded in a direction away from the other slide rail, and the two flanges are respectively overlapped with two end surfaces of the corresponding positioning substrate along the first direction;

[0007] Each flange portion is provided with a crimping piece and a first connecting piece, the crimping piece is crimped to the surface of the corresponding flange portion away from the positioning substrate, and the first connecting piece penetrates the crimping piece and the flange portion and fixes the crimping piece and the flange portion to the positioning substrate.

[0008] By setting a support component, the support component includes two slide rails, and the two slide rails are respectively located on opposite surfaces of two positioning substrates. The two slide rails jointly define a sliding track extending along a first direction. During the mechanical test, the server is slid and installed in the sliding track, and the server can be mounted on the two positioning substrates. During the mechanical test, the shelf state of the server during actual use can be simulated, so that the mechanical test results can accurately reflect the stress state of the server during actual use, and the mechanical test results can more accurately and more appropriately reflect the actual product quality of the server.

[0009] In addition, the two end portions of any slide rail are provided with flange portions folded in a direction away from the other slide rail, and the two flange portions are respectively overlapped on the two end surfaces of the corresponding positioning substrate along the first direction, and the crimping piece is crimped on the surface of the corresponding flange portion away from the positioning substrate, and the first connecting piece passes through the crimping piece and the flange portion and fixes the crimping piece and the flange portion to the positioning substrate. In this arrangement, when the server is installed on the mechanical testing fixture, it is located in the area defined between the relative surfaces of the two positioning substrates, and the connection positions of the first connecting portion, the flange portion and the crimping piece are outside the relative area of ​​the two positioning substrates. Therefore, the installation structure of the slide rail will not interfere with the disassembly of the server and normal mechanical testing, nor will it affect the accuracy of the mechanical testing.

[0010] Furthermore, the crimping piece is crimped to the surface of the corresponding flange portion that is away from the positioning substrate, which can increase the installation strength of the slide rail.

[0011] In one embodiment, the surfaces of the two positioning substrates facing away from each other are defined as outer surfaces;

[0012] The crimping piece includes a first crimping plate and a second crimping plate connected at the ends. The first crimping plate is crimped to the surface of the corresponding flange portion away from the positioning substrate, and the second crimping plate is fixedly connected to the outer surface of the corresponding positioning substrate.

[0013] With such an arrangement, the crimping piece can be fixed on the positioning substrate more stably.

[0014] In one of the embodiments, corresponding positions on the end faces of the first crimping plate, the flange portion, and the positioning substrate along the first direction are provided with mounting holes for cooperating with the second fastener. When the server is installed on the support assembly, the second fastener passes through the cooperating hole on the box ear of the server and is connected to the first crimping plate, the flange portion, and the mounting holes on the positioning substrate.

[0015] With such arrangement, when the server is mounted on the track, the fasteners can penetrate the matching holes and the mounting holes, thereby fixing the box ears of the server on the positioning substrate.

[0016] In one of the embodiments, a surface of the first crimping plate facing away from the flange portion is further provided with a protrusion, the outer contour of the protrusion is used to match the mounting recess on the box ear, and the mounting hole on the first crimping plate is located on the protrusion.

[0017] Such an arrangement can assist in positioning the server when installing the server. Specifically, when the first connector passes through the first crimping plate and the flange portion and is installed on the positioning substrate, a portion of the first connector must protrude from the first crimping plate. When the box ear of the server is installed close to the positioning substrate, the box ear must be at a certain distance from the first crimping plate. If the raised portion is not provided, when the second fastener passes through one side of the box ear, there is still a certain distance from the mounting hole on the first crimping plate, which is inconvenient to install. In the embodiment of the present application, the mounting hole on the first crimping plate is located on the raised portion, so that when the second fastener is installed, it can quickly enter the mounting hole on the raised portion just after passing through the matching hole of the box ear, making installation more convenient.

[0018] In one embodiment, one flange portion corresponds to two first connecting members, and the two first connecting members are located on opposite sides of the protruding portion.

[0019] Such an arrangement enables the connection positions between the flange portion and the positioning substrate to be arranged more evenly.

[0020] In one of the embodiments, an avoidance recess is provided on the end surface of the positioning substrate along the first direction, and at least a part of the structure of the flange portion and the first crimping plate is accommodated in the avoidance recess.

[0021] Such an arrangement can reduce the external dimensions of the mechanical testing fixture and also make the surface of the mechanical testing fixture more regular.

[0022] In one embodiment, the slide rail includes an inner rail and an outer rail that are slidably matched along a first direction, the inner rail is used to connect to the server, and the flange portion is connected to the end of the outer rail along the first direction.

[0023] With such arrangement, the server and the inner rail can be connected in advance, and then the server and the inner rail can be integrally slidably connected to the outer rail, which is convenient for installation.

[0024] In one of the embodiments, the inner rail is provided with a plurality of plugging holes arranged at intervals along the first direction, and the plugging holes are used for plugging and matching with the protrusions on the outer surface of the server.

[0025] This arrangement facilitates the detachable fixing of the inner rail and the server.

[0026] In one of the embodiments, the mechanical testing fixture further includes a support plate connected to the positioning substrate in a one-to-one correspondence, the positioning substrate is erected on the corresponding support plate, and the support plate is used to be fixedly connected to the vibration table through a third fastener.

[0027] With such arrangement, servers of different models can be clamped by adjusting the distance between the two support plates.

[0028] In one embodiment, a through hole is provided on the support plate for the third fastener to pass through, the through hole includes a large aperture section and a small aperture section, so as to define a countersunk hole structure on the side of the support plate facing the positioning substrate, the countersunk hole structure is used to accommodate an annular gasket, and the third fastener is used to pass through the gasket and the small aperture section and connect to the vibration table;

[0029] The outer ring diameter of the washer is equal to the diameter of the large aperture section; the inner ring diameter of the washer is equal to the outer diameter of the third fastener, and the inner ring diameter of the washer is less than or equal to the diameter of the small aperture section.

[0030] With such a configuration, when the diameter of the mounting hole on the vibration table is small, a washer with a smaller inner ring diameter and a third fastener with a smaller diameter are used, and the portion of the third fastener located in the small aperture section is suspended and does not contact the hole wall of the small aperture section, and the support plate can also be fixed to the vibration table. In this way, for different vibration tables, even if the apertures of the mounting holes on the vibration tables are different, by replacing matching washers and third fasteners, the coordination with various vibration tables can be achieved, thereby improving the adaptability of the mechanical testing fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a mechanical testing fixture provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 A local enlarged view of point A;

[0033] Figure 3 for Figure 1 A local enlarged view of point B;

[0034] Figure 4 A schematic structural diagram of the mechanical testing fixture provided in an embodiment of the present application from another angle;

[0035] Figure 5 for Figure 4 A partial enlarged view of point C.

[0036] Description of Figure Numbers:

[0037] 100, mechanical test fixture; 10, positioning substrate; 11, outer surface; 20, slide rail; 21, inner rail; 22, outer rail; 30, flange portion; 40, server; 41, box ear; 50, crimping piece; 501, first connecting piece; 51, first crimping plate; 510, raised portion; 52, second crimping plate; 60, mounting hole; 61, matching hole; 62, plug-in hole; 70, support plate; 80, through hole; 81, large aperture section; 82, small aperture section; 90, third fastener; 91, washer; 92, reinforcing rib plate;

[0038] F. First direction. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0045] The mechanical testing device of the embodiment of the present application is described below in conjunction with the accompanying drawings. It should be noted that the mechanical test in the present application is described as a mechanical vibration test, and the support plate of the mechanical testing fixture is connected to the vibration table. The situation of other types of mechanical testing is similar to this, and will not be repeated here.

[0046] Figure 1 A schematic diagram of the structure of a mechanical testing fixture provided in an embodiment of the present application; Figure 2 for Figure 1 A local enlarged view of point A; Figure 3 for Figure 1 A local enlarged view of point B; Figure 4 A schematic structural diagram of the mechanical testing fixture provided in an embodiment of the present application from another angle; Figure 5 for Figure 4 A partial enlarged view of point C. Figure 4 In the figure, the crimping parts are omitted for easy observation.

[0047] Reference Figure 1 and Figure 2 The mechanical testing fixture 100 provided in the embodiment of the present application includes two positioning substrates 10 and a supporting assembly.

[0048] The two positioning substrates 10 are spaced apart from each other and arranged opposite to each other. The support assembly includes two slide rails 20, which are respectively located on the opposite surfaces of the two positioning substrates 10, and the two slide rails 20 jointly define a sliding track extending along the first direction F. The two ends of any slide rail 20 are provided with flange portions 30 folded in a direction away from the other slide rail 20, and the two flange portions 30 are respectively overlapped on the two end surfaces of the corresponding positioning substrate 10 along the first direction F. Among them, each flange portion 30 is correspondingly provided with a crimping piece 50 and a first connecting piece 501, and the crimping piece 50 is crimped on the surface of the corresponding flange portion 30 away from the positioning substrate 10, and the first connecting piece 501 penetrates the crimping piece 50 and the flange portion 30 and fixes the crimping piece 50 and the flange portion 30 to the positioning substrate 10.

[0049] By setting a support component, the support component includes two slide rails 20, and the two slide rails 20 are respectively located on the opposite surfaces of the two positioning substrates 10. The two slide rails 20 jointly define a sliding track extending along the first direction F. During the mechanical test, as long as the server 40 is slidably installed in the sliding track, the server 40 can be mounted on the two positioning substrates 10. During the mechanical test, the shelf state of the server 40 during actual use can be simulated, so that the mechanical test results can accurately reflect the stress state of the server 40 during actual use, so that the mechanical test results can more accurately and more appropriately reflect the actual product quality of the server 40.

[0050] In addition, the two ends of any slide rail 20 are provided with flange portions 30 folded in a direction away from the other slide rail 20, and the two flange portions 30 are respectively overlapped on the two end surfaces of the corresponding positioning substrate 10 along the first direction, and the crimping piece 50 is crimped on the surface of the corresponding flange portion 30 away from the positioning substrate 10, and the first connecting piece 501 penetrates the crimping piece 50 and the flange portion 30 and fixes the crimping piece 50 and the flange portion 30 to the positioning substrate 10. In this way, when the server 40 is installed on the mechanical testing fixture 100, it is located in the area defined between the opposite surfaces of the two positioning substrates 10, and the connection position of the first connecting part, the flange portion 30 and the crimping piece 50 is outside the opposite area of ​​the two positioning substrates 10. Therefore, the installation structure for fixing the slide rail 20 will not interfere with the disassembly of the server 40 and the normal mechanical testing, nor will it affect the accuracy of the mechanical testing.

[0051] Furthermore, the crimping member 50 is crimped onto the surface of the corresponding flange portion 30 that is away from the positioning substrate 10 , so that the installation strength of the slide rail 20 can be higher.

[0052] In the embodiment of the present application, the surfaces on the opposite sides of the two positioning substrates 10 are defined as the outer surface 11. The crimping member 50 includes a first crimping plate 51 and a second crimping plate 52 connected at the ends, the first crimping plate 51 is crimped to the surface of the corresponding flange portion 30 that is away from the positioning substrate 10, and the second crimping plate 52 is fixedly connected to the outer surface 11 of the corresponding positioning substrate 10. In fact, the flange portion 30 is located between the first crimping plate 51 and the end surface of the positioning substrate 10.

[0053] In this way, the crimping member 50 can be fixed relatively stably on the positioning substrate 10. The angle between the first crimping plate 51 and the second crimping plate 52 can be adapted to the angle between the end surface of the positioning substrate 10 along the first direction F and the outer surface 11. For example, when the angle between the end surface of the positioning substrate 10 along the first direction F and the outer surface 11 is 90°, the angle between the first crimping plate 51 and the second crimping plate 52 is also 90°.

[0054] The second pressing plate 52 can be fixed to the positioning substrate 10 by fasteners such as screws.

[0055] In the embodiment of the present application, the first crimping plate 51, the flange portion 30, and the corresponding positions on the end surface of the positioning substrate 10 along the first direction F are provided with mounting holes 60 for mounting with the second fastener. When the server 40 is installed on the support assembly, the second fastener passes through the matching hole 61 on the box ear 41 of the server 40 and is connected to the first crimping plate 51, the flange portion 30, and the mounting hole 60 of the positioning substrate 10.

[0056] With such arrangement, when the server 40 is mounted on the track, the fasteners can penetrate the matching holes 61 and the mounting holes 60 , thereby fixing the box ears 41 of the server 40 on the positioning substrate 10 .

[0057] In the embodiment of the present application, a surface of the first crimping plate 51 facing away from the flange portion 30 is also provided with a protrusion 510 , the outer contour of the protrusion 510 is used to cooperate with the mounting recess (not shown) on the box ear 41 , and the mounting hole 60 on the first crimping plate 51 is located on the protrusion 510 .

[0058] Such a configuration can assist in positioning the server 40 when installing the server 40. Specifically, when the first connector 501 passes through the first crimping plate 51 and the flange portion 30 and is installed on the positioning substrate 10, the first connector 501 must partially protrude from the first crimping plate 51. When the box ear 41 of the server 40 is installed close to the positioning substrate 10, the box ear 41 must be at a certain distance from the first crimping plate 51. If the protruding portion 510 is not provided, when the second fastener passes through one side of the box ear 41, there is still a certain distance from the mounting hole 60 on the first crimping plate 51, which is inconvenient to install. In the embodiment of the present application, the mounting hole 60 on the first crimping plate 51 is located on the protruding portion 510, so that when the second fastener is installed, it can quickly enter the mounting hole 60 on the protruding portion 510 just after passing through the matching hole 61 of the box ear 41, making the installation more convenient.

[0059] In the embodiment of the present application, one flange portion 30 corresponds to two first connecting members 501 , and the two first connecting members 501 are located on opposite sides of the protrusion 510 .

[0060] Such an arrangement enables the connection positions between the flange portion 30 and the positioning substrate 10 to be arranged more evenly.

[0061] In the embodiment of the present application, an avoidance recess (not shown) is provided on the end surface of the positioning substrate 10 along the first direction F, and at least part of the structure of the flange portion 30 and the first crimping plate 51 is accommodated in the avoidance recess.

[0062] Such a configuration can reduce the external dimensions of the mechanical testing fixture 100 and also make the surface of the mechanical testing fixture 100 more regular.

[0063] In the present application, refer to Figure 4 and Figure 5 The slide rail 20 includes an inner rail 21 and an outer rail 22 that are slidably matched along a first direction F. The inner rail 21 is used to connect with the server 40, and the flange portion 30 is connected to the end of the outer rail 22 along the first direction F.

[0064] In this way, the server 40 and the inner rail 21 can be connected in advance, and then the server 40 and the inner rail 21 can be slidably connected to the outer rail 22 for easy installation. In the embodiment of the present application, both ends of the outer rail 22 along the first direction F are provided with flange portions 30.

[0065] In the embodiment of the present application, the inner rail 21 is provided with a plurality of plug holes 62 arranged at intervals along the first direction F, and the plug holes 62 are used for plugging and mating with the protrusions on the outer surface of the server 40 .

[0066] This arrangement facilitates the detachable fixing of the inner rail 21 and the server 40 .

[0067] In a specific implementation, after aligning the plug-in holes 62 on the inner rail 21 with the protrusions on the outer surface of the server 40, each protrusion is inserted into the corresponding plug-in holes 62. At this time, the server 40 and the inner rail 21 are inserted as a whole between the two outer rails 22. At this time, since the two outer rails 22 are blocked on the outside of the inner rail 21, the inner rail 21 will not fall off from the server 40.

[0068] In the present application embodiment, combined Figure 1 and Figure 3 The mechanical testing fixture 100 also includes a support plate 70 connected to the positioning substrate 10 in a one-to-one correspondence. The positioning substrate 10 is erected on the corresponding support plate 70 . The support plate 70 is used to be fixedly connected to the vibration table through a third fastener 90 .

[0069] With such arrangement, servers 40 of different models can be clamped by adjusting the distance between the two support plates 70 .

[0070] In a specific implementation, a reinforcing rib 92 may be connected between the positioning substrate 10 and the supporting plate 70 . There may be a plurality of reinforcing ribs 92 , and the plurality of reinforcing ribs 92 are arranged along the first direction F at intervals.

[0071] In the embodiment of the present application, the support plate 70 is provided with a through hole 80 for the third fastener 90 to pass through, and the through hole 80 includes a large aperture section 81 and a small aperture section 82, so as to define a countersunk hole structure on the side of the support plate 70 facing the positioning substrate 10, and the countersunk hole structure is used to accommodate the annular gasket 91, and the third fastener 90 is used to pass through the gasket 91 and the small aperture section 82 and connect to the vibration table.

[0072] The outer ring diameter of the washer 91 is equal to the diameter of the large aperture section 81 , the inner ring diameter of the washer 91 is equal to the outer diameter of the third fastener 90 , and the inner ring diameter of the washer 91 is smaller than or equal to the diameter of the small aperture section 82 .

[0073] With such a configuration, when the diameter of the mounting hole 60 on the vibration table is small, a washer 91 with a small inner ring diameter and a third fastener 90 with a small diameter are used, and the portion of the third fastener 90 located in the small aperture section 82 is suspended and does not contact the hole wall of the small aperture section 82, and the support plate 70 can also be fixed to the vibration table. In this way, for different vibration tables, even if the apertures of the mounting holes on the vibration tables are different, by replacing the matching washer 91 and the third fastener 90, the coordination with various vibration tables can be achieved, thereby improving the adaptability of the mechanical testing fixture 100.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A mechanical testing fixture, characterized in that: include: Two positioning substrates, the two positioning substrates are spaced apart from each other and arranged opposite to each other; as well as A support assembly, the support assembly comprising two slide rails, the two slide rails are respectively located on opposite surfaces of the two positioning substrates, the two slide rails jointly define a sliding track extending along a first direction, two ends of any of the slide rails are provided with flanges folded in a direction away from the other slide rail, and the two flanges are respectively overlapped with two end surfaces of the corresponding positioning substrates along the first direction; Among them, each of the flange parts is correspondingly provided with a crimping piece and a first connecting piece, the crimping piece is crimped on the surface of the corresponding flange part away from the positioning substrate, and the first connecting piece penetrates the crimping piece and the flange part and fixes the crimping piece and the flange part to the positioning substrate.

2. The mechanical testing fixture according to claim 1, characterized in that: The surfaces of the two positioning substrates facing away from each other are defined as outer surfaces; The crimping member includes a first crimping plate and a second crimping plate connected at ends, the first crimping plate is crimped to a surface of the flange portion facing away from the positioning substrate, and the second crimping plate is fixedly connected to an outer surface of the positioning substrate.

3. The mechanical testing fixture according to claim 2, characterized in that: The first crimping plate, the flange portion, and corresponding positions on the end faces of the positioning substrate along the first direction are all provided with mounting holes for cooperating with the second fastener. When the server is installed on the supporting assembly, the second fastener passes through the cooperating hole on the box ear of the server and is connected to the first crimping plate, the flange portion, and the mounting holes on the positioning substrate.

4. The mechanical testing fixture according to claim 3, characterized in that: A protrusion is further provided on the surface of the first crimping plate away from the flange portion, the outer contour of the protrusion is used to match the mounting recess on the box ear, and the mounting hole on the first crimping plate is located on the protrusion.

5. The mechanical testing fixture according to claim 4, characterized in that: One flange portion corresponds to two first connecting members, and the two first connecting members are located on opposite sides of the protruding portion.

6. The mechanical testing fixture according to claim 3, characterized in that: An avoidance recess is provided on the end surface of the positioning substrate along the first direction, and at least a part of the structure of the flange portion and the first crimping plate is accommodated in the avoidance recess.

7. The mechanical testing fixture according to claim 1, characterized in that: The slide rail comprises an inner rail and an outer rail which are slidably matched along a first direction, the inner rail is used to be connected to a server, and the flange portion is connected to an end portion of the outer rail along the first direction.

8. The mechanical testing fixture according to claim 7, characterized in that: The inner rail is provided with a plurality of plugging holes arranged at intervals along the first direction, and the plugging holes are used for plugging and matching with the protrusions on the outer surface of the server.

9. The mechanical testing fixture according to any one of claims 1 to 8, characterized in that: The mechanical testing fixture further comprises a support plate connected to the positioning substrate in a one-to-one correspondence, the positioning substrate is erected on the corresponding support plate, and the support plate is used to be fixedly connected to the vibration table through a third fastener.

10. The mechanical testing fixture according to claim 9, characterized in that: The support plate is provided with a through hole for the third fastener to pass through, the through hole includes a large aperture section and a small aperture section, so as to define a countersunk hole structure on a side of the support plate facing the positioning substrate, the countersunk hole structure is used to accommodate an annular gasket, and the third fastener is used to pass through the gasket and the small aperture section and be connected to the vibration table; The outer ring diameter of the washer is equal to the diameter of the large aperture section; the inner ring diameter of the washer is equal to the outer diameter of the third fastener, and the inner ring diameter of the washer is less than or equal to the diameter of the small aperture section.

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