CN219245261U

CN219245261U - Fatigue test prevents unstability auxiliary fixtures

Info

Publication number: CN219245261U
Application number: CN202320741820.0U
Authority: CN
Inventors: 尹衍军; 许经纬; 张书山; 谢浩俊; 陈云
Original assignee: Changzhou Wmc Detection Technology Co ltd
Current assignee: Changzhou Wmc Detection Technology Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-06-23
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to the technical field of fatigue tests, in particular to an anti-instability auxiliary tool for a fatigue test, which comprises the following components: the device comprises a clamp assembly, a transmission assembly, a fixing device and a guide structure; the clamp assembly is used for compressing two opposite sides of the spline and primarily fixing the spline; the two ends of the transmission component are respectively provided with a clamp component and a guide structure, and the extrusion force of the external tool is transmitted to the clamp component; the fixing device is fixedly arranged with the external tool, and one end far away from the external tool is fixed at two ends of the guide structure; the guide structure guides the driving assembly and plays an auxiliary role in fatigue test; wherein, the fixture assembly is installed through the transmission assembly. The fixture provided by the utility model effectively solves the problem of fixture instability caused by high reciprocating times and long period in the test, plays a certain auxiliary guiding role for the subsequent test, has a simple structure, is convenient to install and detach, and effectively improves the test data precision.

Description

Fatigue test prevents unstability auxiliary fixtures

Technical Field

The utility model relates to the technical field of fatigue tests, in particular to an anti-instability auxiliary tool for a fatigue test.

Background

Before the composite material is put into use, the fatigue strength of the composite material needs to be tested, and the composite material can be put into use according to requirements. At present, when testing the fatigue strength of a spline, a corresponding clamp is usually manufactured according to the test requirement, and then the clamp and a test tool are installed.

Because the test process may need millions of reciprocating tests such as pulling and pressing, the test period is long, manual real-time monitoring cannot be guaranteed, and once the spline and the clamp deviate from the test direction, the test data has no reference.

The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and is not to be taken as an admission or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.

Disclosure of Invention

The utility model provides an anti-instability auxiliary tool for a fatigue test, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an anti-instability auxiliary tool for fatigue testing, comprising: the device comprises a clamp assembly, a transmission assembly, a fixing device and a guide structure;

the clamp assembly is used for compressing two opposite sides of the spline and primarily fixing the spline;

the two ends of the transmission assembly are respectively provided with the clamp assembly and the guide structure, and the extrusion force of the external tool is transmitted to the clamp assembly;

the fixing device is fixedly arranged with the external tool, and one end far away from the external tool is fixed at two ends of the guide structure;

the guide structure guides the transmission assembly and plays an auxiliary role in fatigue test;

wherein, the fixture assembly is installed through the transmission assembly.

Further, the guide structure includes: the guide rod and the sliding block;

the guide rods are at least four, are respectively arranged at two sides of the spline and are parallel to the spline, and the distribution direction of at least two guide rods at each side is perpendicular to the spline;

the sliding block is sleeved on the guide rod, one side of the sliding block is fixedly connected with the transmission assembly, and the sliding block drives the transmission assembly to move upwards along the guide rod.

Further, the transmission assembly includes: the first mounting plate and the second mounting plate are of a detachable structure, and a mounting space is provided for the spline and the clamp assembly.

Further, an adjusting piece is arranged between the first mounting plate and the second mounting plate, and the adjusting piece can adjust the extrusion force of the transmission assembly to the clamp assembly.

Further, the fixing device includes: a connecting part and a locking part; the connecting parts are fixed at two ends of the guide structure, the guide structure is fixed in position, and the locking hoop part is fixed with an external tool.

Further, the locking collar portion is provided with a locking screw, which can adjust a fixed diameter of the locking collar portion.

Further, the second mounting plate is close to the sliding block, and the second mounting plate is provided with a plurality of lock holes for the transmission assembly and the sliding block to mount and adjust the fixing position.

Further, a clamping plate is arranged at the extrusion position of the clamp assembly and the transmission assembly, a limiting block is arranged on the clamping plate, and the limiting block limits the extrusion position of the transmission assembly.

By the technical scheme of the utility model, the following technical effects can be realized:

the fixture has the advantages that the fixture instability problem caused by high reciprocating times and long period during testing is effectively solved, a certain auxiliary guiding effect is achieved for subsequent testing, the whole fixture is simple in structure, convenient to install and detach, and the accuracy of test data is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic structural diagram of an auxiliary tool for preventing instability in fatigue test;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a fixing device;

FIG. 4 is an enlarged view of a portion of the transmission assembly;

FIG. 5 is a schematic view of the installation of the guide structure and the fixture;

reference numerals: 1. a spline; 2. a clamp assembly; 20. a clamping plate; 21. a first mounting plate; 22. a second mounting plate; 23. an adjusting member; 24. a lock hole; 25. a limiting block; 3. a guide structure; 31. a sliding block; 32. a guide rod; 4. a transmission assembly; 5. a fixing device; 51. a connection part; 52. a locking part; 53. locking the screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, an anti-instability auxiliary tool for fatigue test includes: the fixture assembly 2, the transmission assembly 4, the fixing device 5 and the guide structure 3; the clamp assembly 2 is used for compressing two opposite sides of the spline 1 and primarily fixing the spline 1; the two ends of the transmission assembly 4 are respectively provided with the clamp assembly 2 and the guide structure 3, and the extrusion force of the external tool is transmitted to the clamp assembly 2; the fixing device 5 is fixedly arranged with the external tool, and one end far away from the external tool is fixed at two ends of the guide structure 3; the guide structure 3 guides the transmission assembly 4 and plays an auxiliary role in fatigue test; wherein the clamp assembly 2 is mounted by means of a transmission assembly 4.

According to the technical scheme, the problem of fixture instability caused by high reciprocating times and long period in the test is effectively solved, a certain auxiliary guiding effect is achieved for the subsequent test, the whole fixture is simple in structure, and the fixture is convenient to install and detach, so that the accuracy of test data is effectively improved.

In the installation, through fixing device 5 and external frock installation connection, external frock is fixed clamp assembly 2 and spline 1 through the extrusion of drive assembly 4, drive assembly 4 both plays the extrusion transmission to clamp assembly 2, provide redundant installation dismantlement space when again for installing clamp assembly 2, the direction of guide structure 3 is the test application of force direction, set up perpendicularly with the unstability direction, frock test force is spline 1 both ends apply the pulling force to the centre as shown in fig. 1, the direction of guide device's direction has both restricted the unstability direction, also auxiliary test simultaneously, will test the application of force direction and do not deviate along the direction of guide.

As a preference to the above embodiment, as shown in fig. 5, the guide structure 3 includes: a guide rod 32 and a slider 31; at least four guide rods 32 are arranged on two sides of the spline 1 and are parallel to the spline 1, and the distribution direction of at least two guide rods 32 on each side is perpendicular to the spline 1; the sliding block 31 is sleeved on the guide rod 32, one side of the sliding block is fixedly connected with the transmission assembly 4, and the sliding block 31 drives the transmission assembly 4 to move upwards along the guide rod 32. The sliding block 31 can move in the direction of the guide rod 32, the direction of the guide rod 32 refers to the specific direction of the test, the instability prevention direction is any direction perpendicular to the test direction, the guide rod 32 can be used as auxiliary force application guide during the test, and meanwhile the instability prevention performance can be improved.

In the above embodiment, the transmission assembly 4 includes: the first mounting plate 21 and the second mounting plate 22 are of a detachable structure, and a mounting space is provided for the spline 1 and the clamp assembly 2. The disassembly structure between the first mounting plate 21 and the second mounting plate 22 can better adjust the adaptation width of the clamp assembly 2, the clamping position of the clamp assembly 2 is determined firstly, then the first mounting plate 21 and the second mounting plate 22 are mounted with the position and the width, meanwhile, the extrusion force for the clamp assembly 2 is formed, and after positioning, the clamp assembly is gradually locked to meet the extrusion force required by the test.

For the purpose of convenient installation of the clamp assembly 2, as shown in fig. 4, an adjusting piece 23 is arranged between the first mounting plate 21 and the second mounting plate 22, and the adjusting piece 23 can adjust the extrusion force of the transmission assembly 4 on the clamp assembly 2. The width of the pressed clamp assembly 2 is changed between the first mounting plate 21 and the second mounting plate 22 by means of the adjusting piece 23, so that the mounting of the spline 1 and the clamp assembly 2 can be realized without disassembly.

In order to enhance the fixing effect, as shown in fig. 3, the fixing device 5 includes: a connecting portion 51 and a locking portion 52; the connecting parts 51 are fixed at two ends of the guide structure 3, the guide structure 3 is fixed in position, and the locking hoop parts 52 are fixed with an external tool. The connecting part 51 of the fixing device 5 is used for installing and fixing the guide structure 3, the locking hoop part 52 is used for installing and fixing the external tool, the locking hoop part and the external tool are not mutually influenced and are respectively and independently fixed, the integral collapse caused by one-side instability is avoided, and the safety is improved.

In practice, the locking collar 52 is provided with a locking screw 53, the locking screw 53 being able to adjust the fixed diameter of the locking collar 52. Referring to fig. 3, the locking screw 53 can adjust the locking diameter of the locking collar 52 to adapt to more external tool specifications.

In the implementation process of the above-mentioned optimization mode, as shown in fig. 1, the second mounting plate 22 is close to the sliding block 31, and the second mounting plate 22 is provided with a plurality of locking holes 24 for mounting and adjusting the fixing positions of the transmission assembly 4 and the sliding block 31. For the spline 1 with different specifications, the first mounting plate 21 and the second mounting plate 22 with more adaptive specifications should be selected to embody a better instability preventing effect, but for the same test, the guide structure 3 will not be replaced frequently, so in order to increase more adaptability, adjust the stable state of the second mounting plate 22 and the first mounting plate 21 in transmission extrusion, set the lock hole 24 on the second mounting plate 22, transversely and longitudinally distribute the relative sliding blocks 31, adjust the extrusion center of gravity, and promote stability.

Preferably, the clamping plate 20 is arranged at the extrusion position of the clamp assembly 2 and the transmission assembly 4, and the limiting block 25 is arranged on the clamping plate 20, so that the limiting block 25 limits the extrusion position of the transmission assembly 4. The limiting plate shown with reference to fig. 2 has a positioning limitation on the drive assembly 4 to avoid squeeze deflection during testing.

The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Anti-instability auxiliary fixtures of fatigue test, its characterized in that includes: the device comprises a clamp assembly, a transmission assembly, a fixing device and a guide structure;

wherein, the fixture assembly is installed through the transmission assembly.

2. The fatigue test instability prevention auxiliary tool of claim 1, wherein the guide structure comprises: the guide rod and the sliding block;

3. The fatigue test destabilization prevention auxiliary tool according to claim 2, characterized in that the transmission assembly comprises: the first mounting plate and the second mounting plate are of a detachable structure, and a mounting space is provided for the spline and the clamp assembly.

4. The fatigue test instability prevention auxiliary tool according to claim 3, wherein an adjusting member is disposed between the first mounting plate and the second mounting plate, and the adjusting member can adjust the extrusion force of the transmission assembly to the clamp assembly.

5. The fatigue test destabilization prevention auxiliary tool according to claim 1, characterized in that the fixing means comprises: a connecting part and a locking part; the connecting parts are fixed at two ends of the guide structure, the guide structure is fixed in position, and the locking hoop parts are fixed with the external tool.

6. The fatigue test instability prevention auxiliary tool according to claim 5, wherein the locking collar portion is provided with a locking screw, and the locking screw can adjust a fixed diameter of the locking collar portion.

7. The fatigue test instability prevention auxiliary tool according to claim 4, wherein the second mounting plate is close to the sliding block, and the second mounting plate is provided with a plurality of lock holes for the transmission assembly and the sliding block to mount and adjust the fixing position.

8. The fatigue test instability-preventing auxiliary tool according to claim 1, wherein a clamping plate is arranged at the extrusion position of the clamp assembly and the transmission assembly, and a limiting block is arranged on the clamping plate and limits the extrusion position of the transmission assembly.