Vibration test fixture and vibration test device

Abstract

The utility model relates to a vibration test fixture and a vibration test device. The vibration test fixture comprises a plurality of clamping assemblies, the plurality of clamping assemblies are arranged in pairs, and each clamping assembly comprises a clamping piece used for being detachably connected to different positions of a vibration table; the lining pieces are connected to the clamping pieces in a one-to-one correspondence mode through the adjusting pieces, and the relative positions of the lining pieces and the corresponding clamping pieces can be adjusted through the adjusting pieces. In each group of two clamping assemblies arranged in pairs, the lining pieces of the clamping assemblies are adjacent and oppositely arranged to form a clamping space, and the size of the clamping space can be adjusted through adjustment, relative approaching or departing of the adjusting pieces connected with the lining pieces. The vibration test clamp and the vibration test device can be suitable for clamping to-be-tested samples with different shapes and external sizes, and are helpful for improving the accuracy and the reliability of vibration test.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a vibration testing fixture and a vibration testing device. Background Art

[0002] As products become more customized, R&D engineers will design products with unique appearances according to customer needs and aesthetics. Such products need to undergo environmental testing during the R&D stage to ensure product quality when shipped. Vibration testing is a very important test method that can evaluate the performance, reliability, and durability of products in a vibration environment to identify and correct defects in product design and manufacturing. In order to ensure the smooth progress of the vibration test, the sample to be tested needs to be clamped by a vibration test fixture before the test. However, the current vibration test fixture has poor versatility for samples to be tested of different specifications and dimensions. Since the sample to be tested cannot be clamped with an appropriate clamping force, this will affect the accuracy and reliability of the vibration test results. Utility Model Content

[0003] Based on this, it is necessary to provide a vibration test fixture and a vibration test device, which can flexibly adjust the relative position of the clamping assembly and the sample to be tested according to the sample to be tested, and can also accurately adjust the size of the clamping force on the sample to be tested. It can be suitable for clamping samples of various shapes and external sizes to be tested, and help to improve the accuracy and reliability of vibration testing.

[0004] In a first aspect, an embodiment of the present application provides a vibration test fixture, comprising a plurality of clamping assemblies, wherein the plurality of clamping assemblies are arranged in pairs, and the clamping assemblies include:

[0005] A clamping member for detachably connecting to different positions of the vibration table; and

[0006] Lining parts and adjusting parts, each lining part is connected to the clamping part one by one through the adjusting part, and the relative position with the corresponding clamping part can be adjusted through the adjusting part;

[0007] Among them, in each group of two clamping components arranged in pairs, the lining parts of each clamping component are adjacent and relatively arranged to form a clamping space, and can be relatively moved closer or farther away by adjusting the adjustment parts connected to each other to adjust the size of the clamping space.

[0008] By arranging a plurality of clamping assemblies in pairs, in each group of two clamping assemblies arranged in pairs, the inner lining members of each clamping assembly are adjacent and oppositely arranged to form a clamping space. With such an arrangement, the paired clamping assemblies can stably clamp the sample to be tested.

[0009] The clamping member is used to be detachably connected to different positions of the vibration table. When testing, the connection position of the clamping member and the vibration table can be roughly determined by the position of the vibration table and the sample to be tested, which is a coarse adjustment. The lining members of each clamping assembly can be relatively close or far away by adjusting the adjustment members connected to each other to adjust the size of the clamping space, so that the relative position of the lining member and the sample to be tested can be adjusted until the lining member is close to the sample to be tested, which is a fine adjustment of the lining member. Through the above arrangement, when clamping the sample to be tested, the connection position of the clamping member is first determined according to the size of the sample to be tested, and then the relative position of the lining member and the sample to be tested is fine-tuned by the adjustment member. The relative position of the clamping assembly and the sample to be tested can be flexibly adjusted according to the sample to be tested, and the size of the clamping force on the sample to be tested can also be accurately adjusted. Therefore, it can be applicable to the clamping of samples to be tested of various shapes and external sizes, and helps to improve the accuracy and reliability of vibration testing.

[0010] In one embodiment, the adjusting member is configured as a screw, and the adjusting member and the clamping member and the lining member connected thereto are all threadedly connected;

[0011] In each group of two clamping assemblies arranged in pairs, the adjustment direction of the adjusting member of each clamping assembly is along the relative direction of the corresponding lining member.

[0012] With such arrangement, the spacing between the lining member and the clamping member can be adjusted simply by adjusting the threaded connection relationship between the adjusting member and the lining member and the clamping member.

[0013] In a pair of two clamping assemblies, if the adjustment direction of the adjusting member of each clamping assembly is along the relative direction of the corresponding lining member, the adjusting member can be adjusted along the above relative direction to realize the movement of the lining member along the relative direction, so as to realize the relative approach or distance between the two lining members.

[0014] In one embodiment, the lining member and the clamping member are both configured as long strips;

[0015] There are multiple adjusting pieces, and the multiple adjusting pieces are arranged at intervals along the length direction of the lining piece.

[0016] In this way, when encountering a larger sample to be tested, the sample to be tested can be clamped better within a larger range. In addition, when the adjusting member and the lining member are threadedly connected, since the adjusting member is connected to the lining member at multiple positions, it can be prevented that the lining member rotates relative to the clamping member when a single adjusting member is screwed.

[0017] In one embodiment, the adjusting member is disposed through the clamping member, and one end is connected to the lining member;

[0018] The clamping assembly also includes an anti-dropping nut connected to the adjusting member, and the anti-dropping nut is located on a side of the clamping member that is away from the lining member.

[0019] This arrangement can prevent the adjusting member from falling off during the vibration test. Each adjusting member can be provided with an anti-falling nut.

[0020] In one embodiment, the clamping member includes a supporting portion and a connecting portion connected to the supporting portion;

[0021] The supporting part is used to be connected with the vibration table, the lining part is connected to the connecting part through the adjusting part, and the setting height of the bottom end of the lining part is higher than the height of the supporting part.

[0022] With such arrangement, the connecting part can support the lining part in suspension on the vibration table, so that the vibration of the vibration table is transmitted to the sample to be tested through the supporting part, the connecting part, the adjusting part and the lining part. If the lining part contacts the vibration table, the vibration of the vibration table will also be directly transmitted to the sample to be tested through the lining part. At this time, the vibration transmitted from the vibration table through the lining part will affect the vibration test. However, supporting the lining part in suspension can avoid this situation.

[0023] In one embodiment, the support portion, the connection portion, and the lining member are all constructed as plate-shaped members; in each group of two clamping assemblies arranged in pairs, the surfaces of the lining members of each clamping assembly facing each other are configured as abutment surfaces for abutting against the sample to be tested;

[0024] The supporting portion is connected to one end of the connecting portion, and the supporting portion is perpendicular to the connecting portion.

[0025] The supporting part, the connecting part and the lining part can all be plate-shaped parts, so that the lining part and the sample to be tested have a larger contact area.

[0026] In one embodiment, the supporting portion and the connecting portion are vertically arranged, the adjusting member is perpendicular to the connecting portion, and the lining member is parallel to the connecting portion.

[0027] Such an arrangement can make the cross section of the clamping member present an "L"-shaped structure, and is also conducive to arranging the abutting surface of the lining member perpendicular to the supporting portion, which is conducive to better clamping the abutting surface to the sample to be tested.

[0028] In one embodiment, a first threaded hole is provided on the surface of the lining member facing the supporting portion, and a second threaded hole is provided at a position corresponding to the first threaded hole on the connecting portion. The first threaded hole is a blind hole, and the second threaded hole is a through hole. The adjusting member is threadedly connected to a group of corresponding first threaded holes and second threaded holes.

[0029] By configuring the second threaded hole on the supporting part as a blind hole, the adjusting member is not arranged on the side of the lining member used for clamping the sample to be tested, and thus will not affect the clamping of the sample to be tested by the lining member.

[0030] In one of the embodiments, a plurality of first mounting holes are provided on the support portion, and the first mounting holes are used for allowing the support portion to be detachably connected to different positions of the vibration table.

[0031] With such arrangement, the position of the support portion and the vibration table can be adjusted by only detachably connecting the first mounting hole and the connection holes at different positions on the vibration table through fasteners such as screws.

[0032] A second aspect of an embodiment of the present application provides a vibration testing device, comprising a vibration table and the above-mentioned vibration testing fixture;

[0033] The vibration table is used to generate vibration, and a plurality of connection holes are provided on the vibration table;

[0034] The clamping member can be connected to different connection holes so that the clamping member has different connection positions relative to the vibration table. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of the exploded structure of a vibration test fixture provided in an embodiment of the present application;

[0036] FIG2 is a cross-sectional view of a vibration test fixture provided in an embodiment of the present application connected to a vibration table;

[0037] FIG3 is a schematic structural diagram of a vibration test fixture provided in an embodiment of the present application connected to a vibration table.

[0038] Description of Figure Numbers:

[0039] 100. Vibration test fixture; 10. Clamping assembly;

[0040] 20. Clamping member; 21. Supporting portion; 211. First mounting hole; 212. Connecting hole; 22. Connecting portion;

[0041] 30. Lining member; 31. First threaded hole; 32. Second threaded hole; 33. Abutment surface;

[0042] 40. Adjustment parts;

[0043] 50. Vibration table; 60. Anti-drop nut;

[0044] 200. Vibration test device. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] The existing vibration test fixture generally includes a fixture seat, on which two clamping members are arranged opposite to each other, and the space between the two clamping members can be used to clamp the sample to be tested. In addition, a plurality of installation holes arranged at intervals are provided on the fixture seat, and the relative positions of the two clamping members can be adjusted by fixing the clamping members on the installation holes at different positions. However, due to the limited number of installation holes, the connection position of the clamping member and the fixture seat will also correspond to the setting position of the installation hole and be fixed at certain specific positions. After the position of the clamping member is adjusted accordingly, it can only be applied to samples to be tested of certain specific specifications and dimensions, and cannot be applied to samples to be tested of various specifications and dimensions. For unsuitable samples to be tested, since the samples to be tested cannot be clamped with appropriate clamping force, the accuracy and reliability of the vibration test results will be affected. The vibration test fixture of the embodiment of the present application includes a coarse adjustment of the relative position of the clamping member and the vibration table, and a fine adjustment of the lining member relative to the clamping member. After two adjustments, the relative position of the clamping assembly and the sample to be tested can be flexibly adjusted according to the external dimensions and specifications of the sample to be tested, and the clamping force on the sample to be tested can be accurately adjusted by the spacing between the two lining members 30. Therefore, it can be suitable for clamping samples of various shapes and external dimensions, and helps to improve the accuracy and reliability of vibration testing.

[0052] The vibration test fixture and the vibration test device of the embodiment of the present application are described below in conjunction with the accompanying drawings. It should be noted that the sample to be tested in the present application can be, for example, an industrial computer, or other types of electronic products. The case where the sample to be tested is other types of electronic products is similar to this and will not be repeated here.

[0053] Figure 1 is a schematic diagram of the exploded structure of the vibration test fixture provided in an embodiment of the present application; Figure 2 is a cross-sectional view of the vibration test fixture provided in an embodiment of the present application connected to a vibration table; Figure 3 is a schematic diagram of the structure of the vibration test fixture provided in an embodiment of the present application connected to a vibration table.

[0054] Referring to Fig. 1, Fig. 2, and Fig. 3, a first aspect of an embodiment of the present application provides a vibration test fixture 100, comprising a plurality of clamping assemblies 10, the plurality of clamping assemblies 10 are arranged in pairs, and the clamping assemblies 10 include: a clamping member 20, a lining member 30, and an adjusting member 40. The clamping member 20 is used to be detachably connected to different positions of the vibration table 50. Each lining member 30 is connected to the clamping member 20 in a one-to-one correspondence through the adjusting member 40, and the relative position with the corresponding clamping member 20 can be adjusted through the adjusting member 40.

[0055] Among them, in each group of two clamping assemblies 10 arranged in pairs, the lining members 30 of each clamping assembly 10 are adjacent and relatively arranged to form a clamping space, and can be relatively moved closer or farther away by adjusting the adjustment members 40 connected to each other to adjust the size of the clamping space.

[0056] By arranging a plurality of clamping assemblies 10 in pairs, in each group of two clamping assemblies 10 arranged in pairs, the inner lining members 30 of each clamping assembly 10 are adjacent and oppositely arranged to form a clamping space. With such an arrangement, the paired clamping assemblies 10 can stably clamp the sample to be tested.

[0057] The clamping member 20 is used to be detachably connected to different positions of the vibration table 50. When testing, the connection position of the clamping member 20 and the vibration table 50 can be roughly determined by the position of the vibration table 50 and the sample to be tested (not shown), which is a coarse adjustment. The lining members 30 of each clamping assembly 10 can be adjusted by adjusting the respective connected adjusting members 40 to move closer or farther from each other to adjust the size of the clamping space. In this way, the relative position of the lining member 30 and the sample to be tested can be adjusted until the lining member 30 is close to the sample to be tested, which is a fine adjustment of the lining member 30. Through the above arrangement, when clamping the sample to be tested, the connection position of the clamping member 20 is first determined according to the size of the sample to be tested, and then the relative position of the lining member 30 and the clamping member 20 is fine-tuned by the adjusting member 40. The relative position of the clamping assembly 10 and the sample to be tested can be flexibly adjusted according to the outer dimensions and specifications of the sample to be tested, and the clamping force of the sample to be tested can be accurately adjusted by the distance between the two lining members 30. Therefore, it can be suitable for clamping samples of various shapes and external sizes to be tested, and helps to improve the accuracy and reliability of vibration testing.

[0058] In the embodiment of the present application, the plurality of clamping assemblies 10 are arranged in pairs, which means that the number of the clamping assemblies 10 is an even number, and every two clamping assemblies 10 can form a pair.

[0059] In addition, the embodiment of the present application takes the case where the number of clamping assemblies 10 is two groups, and the two clamping assemblies 10 are paired and arranged relatively to each other as an example for explanation. The case where the number of clamping assemblies 10 is other than this is similar and will not be repeated here.

[0060] In the embodiment of the present application, each lining member 30 is connected to the clamping member 20 one by one through an adjusting member 40, and the relative position with the corresponding clamping member 20 can be adjusted through the adjusting member 40, which means that the lining member 30 and the clamping member 20 correspond one to one, and the relative position between the lining member 30 and the clamping member 20 can be adjusted through the adjusting member 40.

[0061] In the embodiment of the present application, the adjusting member 40 is configured as a screw rod, and the adjusting member 40 is threadedly connected to the clamping member 20 and the lining member 30 to which it is connected. In each group of two clamping assemblies 10 arranged in pairs, the adjustment direction of the adjusting member 40 of each clamping assembly 10 is along the relative direction of the corresponding lining member 30.

[0062] With such arrangement, the distance between the lining member 30 and the clamping member 20 can be adjusted by adjusting the threaded connection relationship between the adjusting member 40 and the lining member 30 and the clamping member 20 .

[0063] In a group of two paired clamping assemblies 10, if the adjustment direction of the adjusting member 40 of each clamping assembly 10 is along the relative direction of the corresponding lining member 30, the adjusting member 40 can be adjusted respectively along the above relative direction to realize the movement of the lining member 30 along the relative direction, so as to realize the relative approach or distance between the two lining members 30.

[0064] In the embodiment of the present application, the lining member 30 and the clamping member 20 are both configured as long strips. There are a plurality of adjusting members 40 , which are arranged at intervals along the length direction of the lining member 30 .

[0065] In this way, when encountering a larger sample to be tested, the sample to be tested can be clamped better within a larger range. In addition, when the adjusting member 40 and the lining member 30 are threadedly connected, since the adjusting member 40 is connected to the lining member 30 at multiple positions, it can be prevented that the lining member 30 rotates relative to the clamping member 20 when a single adjusting member 40 is screwed.

[0066] 2 and 3, the adjusting member 40 is disposed through the clamping member 20, and one end is connected to the lining member 30. The clamping assembly 10 further includes an anti-dropping nut 60 connected to the adjusting member 40, and the anti-dropping nut 60 is located on the side of the clamping member 20 away from the lining member 30.

[0067] This arrangement can prevent the adjusting member 40 from falling off during the vibration test. Each adjusting member 40 can be provided with an anti-falling nut 60.

[0068] 2 , the clamping member 20 includes a supporting portion 21 and a connecting portion 22 connected to the supporting portion 21. The supporting portion 21 is used to connect with the vibration table 50, and the lining member 30 is connected to the connecting portion 22 through the adjusting member 40, and the bottom end of the lining member 30 is arranged at a height higher than the height of the supporting portion 21.

[0069] With such arrangement, the connection part 22 can support the lining member 30 in suspension on the vibration table 50, so that the vibration of the vibration table 50 is transmitted to the sample to be tested through the support part 21, the connection part 22, the adjustment part 40 and the lining member 30. If the lining member 30 contacts the vibration table 50, the vibration table 50 will also be directly transmitted to the sample to be tested through the lining member 30. At this time, the vibration transmitted from the vibration table 50 through the lining member 30 will affect the vibration test. This situation can be avoided by supporting the lining member 30 in suspension as described above.

[0070] In the embodiment of the present application, the support portion 21, the connection portion 22, and the lining member 30 are all constructed as plate-like members. In each group of two clamping assemblies 10 arranged in pairs, the surfaces of the lining members 30 of each clamping assembly 10 facing each other are configured as abutment surfaces 33 for abutting against the sample to be tested. The support portion 21 is connected to one end of the connection portion 22, and the support portion 21 is perpendicular to the connection portion 22.

[0071] In a specific implementation, the support portion 21 , the connection portion 22 and the lining member 30 may all be plate-shaped members, so that the lining member 30 and the sample to be tested have a larger contact area.

[0072] Furthermore, the supporting portion 21 and the connecting portion 22 are vertically arranged, the adjusting member 40 is perpendicular to the connecting portion 22 , and the lining member 30 is parallel to the connecting portion 22 .

[0073] Such an arrangement can make the cross section of the clamping member 20 present an "L"-shaped structure, and is also conducive to arranging the abutting surface 33 of the lining member 30 perpendicular to the supporting portion 21, so that the abutting surface 33 can better clamp the sample to be tested.

[0074] Furthermore, a first threaded hole 31 is provided on the surface of the lining member 30 facing the support portion 21, and a second threaded hole 32 is provided on the connecting portion 22 at a position corresponding to the first threaded hole 31. The first threaded hole 31 is a blind hole, and the second threaded hole 32 is a through hole. The adjusting member 40 is threadedly connected to a group of corresponding first threaded holes 31 and second threaded holes 32.

[0075] By configuring the first threaded hole 31 on the lining 30 as a blind hole, the adjusting member 40 is not disposed on the side of the lining member 30 for clamping the sample to be tested, and will not affect the clamping of the sample to be tested by the lining member 30 .

[0076] In the embodiment of the present application, a plurality of first mounting holes 211 are provided on the support portion 21 , and the first mounting holes 211 are used for allowing the support portion 21 to be detachably connected to different positions of the vibration table 50 .

[0077] With such arrangement, the positions of the support portion 21 and the vibration table 50 can be adjusted by only detachably connecting the first mounting hole 211 and the connection holes 212 at different positions on the vibration table 50 through fasteners such as screws.

[0078] In a specific implementation, when there are multiple first mounting holes 211 and the support portion 21 is a long strip, the multiple first mounting holes 211 can be arranged in a row along the length direction of the support portion 21 .

[0079] 3 , a second aspect of an embodiment of the present application provides a vibration testing device 200, comprising a vibration table 50 and the above-mentioned vibration testing fixture 100. The vibration table 50 is used to generate vibration, and a plurality of connection holes 212 are provided on the vibration table 50.

[0080] The clamping member 20 can be connected to different connection holes 212 so that the clamping member 20 has different connection positions relative to the vibration table 50 .

[0081] The following describes a testing method for a vibration testing device according to an embodiment of the present application in conjunction with FIG. 1 and FIG. 2 . The method includes:

[0082] Step 1: Place the sample to be tested in the middle position on the vibration table 50, and ensure that the front, back, left, and right sides of the sample to be tested are flat surfaces without any bumps or unevenness.

[0083] Step 2: According to the relative position of the connecting hole 212 of the vibration table 50 and the sample to be tested, the position of the clamping member 20 can be roughly determined, and the two clamping members 20 are fixed to the vibration table 50 by screws passing through the first mounting holes 211.

[0084] Step 3: Screw the adjusting member 40 of one of the clamping assemblies 10 from the outside of the clamping member 20 through the second threaded hole 32 into the first threaded hole 31, and then place the lining member 30 close to the side of the sample to be tested, and continue to screw the adjusting member 40 into the first threaded hole 31 of the lining member 30 until it cannot be screwed in any further. Use the same method to place the other clamping assembly 10 in a similar manner, and place the other lining member 30 close to the other side of the sample to be tested.

[0085] Step 4: Connect the anti-drop nut 60 to each adjusting member 40 .

[0086] 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.

[0087] 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 vibration test fixture, comprising a plurality of clamping assemblies, wherein the plurality of clamping assemblies are arranged in pairs, characterized in that: The clamping assembly comprises: A clamping member for detachably connecting to different positions of the vibration table; and Lining members and adjusting members, each of the lining members is connected to the clamping member in a one-to-one correspondence through the adjusting member, and the relative position of the lining member with the corresponding clamping member can be adjusted through the adjusting member; Among them, in each group of two clamping assemblies arranged in pairs, the lining parts of each clamping assembly are adjacent to and relatively arranged to form a clamping space, and can be relatively moved closer or farther away by adjusting the adjusting parts connected to them to adjust the size of the clamping space.

2. The vibration test fixture according to claim 1, characterized in that: The adjusting member is configured as a screw rod, and the adjusting member and the clamping member and the lining member connected thereto are both threadedly connected; In each group of two clamping assemblies arranged in pairs, the adjustment direction of the adjusting member of each clamping assembly is along the relative direction of the corresponding lining member.

3. The vibration test fixture according to claim 2, characterized in that: The lining member and the clamping member are both configured as long strips; There are multiple adjusting members, and the multiple adjusting members are arranged at intervals along the length direction of the lining member.

4. The vibration test fixture according to claim 2, characterized in that: The adjusting member is disposed through the clamping member, and one end of the adjusting member is connected to the lining member; The clamping assembly also includes an anti-dropping nut connected to the adjusting member, and the anti-dropping nut is located on a side of the clamping member that is away from the lining member.

5. The vibration test fixture according to claim 1, characterized in that: The clamping member includes a supporting portion and a connecting portion connected to the supporting portion; The supporting part is used to be connected to the vibration table, the lining member is connected to the connecting part through the adjusting member, and the bottom end of the lining member is arranged at a height higher than the supporting part.

6. The vibration test fixture according to claim 5, characterized in that: The support portion, the connection portion, and the lining member are all constructed as plate-shaped members; in each group of two clamping assemblies arranged in pairs, the surfaces of the lining members of each clamping assembly facing each other are configured as abutment surfaces for abutting against the sample to be tested; The supporting portion is connected to one end of the connecting portion, and the supporting portion is perpendicular to the connecting portion.

7. The vibration test fixture according to claim 6, characterized in that: The supporting part and the connecting part are vertically arranged, the adjusting member is perpendicular to the connecting part, and the lining member is parallel to the connecting part.

8. The vibration test fixture according to claim 5, characterized in that: A first threaded hole is provided on the surface of the lining member facing the supporting portion, and a second threaded hole is provided on the connecting portion at a position corresponding to the first threaded hole. The first threaded hole is a blind hole, and the second threaded hole is a through hole. The adjusting member is threadedly connected to a group of corresponding first threaded holes and second threaded holes.

9. The vibration test fixture according to claim 5, characterized in that: The support portion is provided with a plurality of first mounting holes, and the first mounting holes are used for allowing the support portion to be detachably connected to different positions of the vibration platform.

10. A vibration testing device, characterized in that: comprising a vibration table and a vibration test fixture as claimed in any one of claims 1 to 9; The vibration table is used to generate vibration, and a plurality of connection holes are provided on the vibration table; The clamping member can be connected to different connecting holes so that the clamping member has different connecting positions relative to the vibration table.

Images