Self-adaptive loading test fixture, test device and test method
By setting an adaptive loading test fixture with a bevel and limit structure on the fastener and clamping body, the difficulty of clamping the existing small and medium-sized test pieces and the problem of multi-specified fixtures is solved, and high efficiency is achieved for test pieces of different thicknesses Clamping reduces fatigue testing costs and improves test efficiency.
Patent Information
- Application Number
- CN202411009782.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2024-12-13
AI Technical Summary
Existing fatigue test fixtures are difficult to clamp small-sized test pieces and cannot adapt to test pieces of different thicknesses, resulting in poor test stability, low accuracy, high cost and low efficiency.
An adaptive loading test fixture is designed, including a fastener, a clamping body and a connecting piece. By setting a bevel and a limiting structure in the opening of the fastener, the adaptive adjustment of the clamping block can be realized, and it can be automatically clamped. Test parts of different thicknesses.
Adaptive clamping of test pieces of different thicknesses is achieved, the types of test fixtures are reduced, the testing cost is reduced, and the efficiency and accuracy of fatigue tests are improved.
Smart Images
Figure CN119124806A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of fatigue testing, and in particular to an adaptive loading test fixture, a test device and a test method. Background Art
[0002] At present, in the field of fatigue test technology, it is difficult for existing test fixtures to clamp small-sized test pieces, resulting in poor stability and low precision in fatigue tests of small-sized test pieces. In addition, currently small-sized test fixtures can only be used to clamp test pieces of a single thickness, and are not suitable for fatigue tests of test pieces of different thicknesses. Therefore, in the prior art, test fixtures of different specifications need to be designed for test pieces of different thicknesses, which increases the test cost and reduces the test efficiency.
[0003] Therefore, in this field, there is an urgent need for a new test fixture, test device and test method to comprehensively solve the above three technical problems, thereby meeting the fatigue test requirements of small-sized test pieces of different thicknesses, improving test efficiency and reducing test costs.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention
[0005] The purpose of the present disclosure is to provide an adaptive loading test fixture, a test device and a test method. The adaptive loading test fixture, the test device and the test method can be adaptively adjusted according to the thickness of the test piece to meet the clamping requirements of the test pieces of different thicknesses.
[0006] In one aspect, the present disclosure provides an adaptive loading test fixture, comprising:
[0007] A clamping assembly, comprising: a fastening seat, a clamping body and a connecting piece, wherein the fastening seat comprises: a main body and an opening, wherein the main body has a first surface and a second surface arranged opposite to each other, wherein the opening penetrates the main body along a first direction, and wherein the opening has a first opening and a second opening, wherein the first opening is located on the first surface, and the second opening is located on the second surface; wherein the clamping body comprises: a first clamping block and a second clamping block, wherein a test piece is located between the first clamping block and the second clamping block, and wherein at least a part of the first clamping block and at least a part of the second clamping block enter into the opening through the first opening; wherein the connecting piece is connected to the fastening seat, and wherein the connecting piece is connected to a loading test machine;
[0008] Wherein, the first clamping block and the second clamping block are arranged opposite to each other in the width direction of the opening, and the side wall of the opening has a first inclined portion, and the width of the opening at the first inclined portion gradually decreases along the first direction; the first direction is the direction from the first surface to the second surface.
[0009] In an exemplary embodiment of the present disclosure, the clamping body is provided with a second inclined surface portion, and when the clamping body is located in the opening portion, the second inclined surface portion is in contact with the first inclined surface portion.
[0010] In an exemplary embodiment of the present disclosure, the opening portion further comprises: a first limiting structure, the first limiting structure being located on a side wall of the opening portion to limit the clamping body;
[0011] The clamping body further includes: a second limiting structure, which is located on the surface of the clamping body and cooperates with the first limiting structure in a limiting manner.
[0012] In an exemplary embodiment of the present disclosure, the first limiting structure is located on the first inclined surface, and the second limiting structure is located on the second inclined surface;
[0013] The first limiting structure is a limiting rib, the second limiting structure is a limiting groove, and the limiting rib is located in the limiting groove; or the first limiting structure is a limiting groove, the second limiting structure is a limiting rib, and the limiting rib is located in the limiting groove.
[0014] In an exemplary embodiment of the present disclosure, the first inclined surface comprises: a first inclined surface and a second inclined surface, wherein the first inclined surface and the second inclined surface are arranged relatively spaced apart along the second direction;
[0015] The second inclined surface includes: a third inclined surface and a fourth inclined surface, the third inclined surface is located on a side of the first clamping block away from the second clamping block, and the fourth inclined surface is located on a side of the second clamping block away from the first clamping block; when the clamping body is located in the opening, the third inclined surface contacts the first inclined surface, and the fourth inclined surface contacts the second inclined surface.
[0016] In an exemplary embodiment of the present disclosure, the opening portion has at least two of the first limiting structures, and the first inclined surface and the second inclined surface are both provided with at least one of the first limiting structures;
[0017] The clamping body has at least two of the second limiting structures, and the third inclined surface and the fourth inclined surface are each provided with at least one of the second limiting structures;
[0018] The first limiting structure located on the first inclined surface cooperates with the second limiting structure located on the third inclined surface, and the first limiting structure located on the second inclined surface cooperates with the second limiting structure located on the fourth inclined surface.
[0019] In an exemplary embodiment of the present disclosure, the connecting member includes:
[0020] A first connecting portion is sleeved on the outer peripheral surface of the main body and connected to the main body, wherein the inner surface of the first connecting portion includes a pressing surface, and the pressing surface can abut against a side of the first clamping block away from the second opening and a side of the second clamping block away from the second opening;
[0021] The second connection part is located at a side of the first connection part away from the main body part, and the second connection part is connected to the loading test machine.
[0022] In an exemplary embodiment of the present disclosure, the test piece comprises: a first clamping section, a test section and a second clamping section, wherein the test section is located between the first clamping section and the second clamping section; the adaptive loading test fixture comprises:
[0023] The two clamping assemblies, the first clamping section is located between the first clamping block and the second clamping block in one of the clamping assemblies, and the second clamping section is located between the first clamping block and the second clamping block in the other clamping assembly.
[0024] Another aspect of the present disclosure provides an adaptive loading test device, comprising:
[0025] A loading test machine having a test connection portion;
[0026] An adaptive loading test fixture, wherein the adaptive loading test fixture is any one of the adaptive loading test fixtures described above, and the connecting piece of the adaptive loading test fixture is connected to a test connecting portion.
[0027] In another aspect, the present disclosure provides an adaptive loading test method, wherein the adaptive loading test method uses the adaptive loading test device described above, and the adaptive loading test method comprises:
[0028] Clamping one end of the test piece with the first clamping block and the second clamping block, and allowing at least a portion of the first clamping block and at least a portion of the second clamping block to enter the opening portion through the first opening;
[0029] Connecting the connecting piece to the test connecting portion and fixing the other end of the test piece;
[0030] A load is applied to the connecting member using a loading test machine so that the load is applied to the test member through the clamping assembly.
[0031] The technical solution provided by the present disclosure can achieve the following beneficial effects:
[0032] The present disclosure provides an adaptive loading test fixture, which may include: a clamping assembly. The clamping assembly may include: a fastening seat, a clamping body and a connecting piece. The test piece may be located between a first clamping block and a second clamping block, so as to clamp the test piece using the first clamping block and the second clamping block.
[0033] The first clamping block and the second clamping block can be arranged opposite to each other in the width direction of the opening. The side wall of the opening has a first inclined portion, and the width of the opening at the first inclined portion gradually decreases along the first direction. At least part of the first clamping block and at least part of the second clamping block can enter the opening through the first opening, and the clamping body can contact the first inclined portion. Thus, the first clamping block and the second clamping block can approach each other under the action of the first inclined portion, so that test pieces of different thicknesses can be automatically clamped, thereby achieving the purpose of adaptively clamping test pieces of different thicknesses.
[0034] Therefore, the adaptive loading test fixture provided by the present invention can be adaptively adjusted according to the thickness of the test piece to meet the clamping needs of test pieces of different thicknesses. It is no longer necessary to manufacture test fixtures of different specifications for test pieces of different thicknesses, thereby avoiding waste of resources and effectively reducing the test cost of fatigue testing.
[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.
[0037] Figure 1 A schematic structural diagram of an adaptive loading test device according to an exemplary embodiment of the present disclosure is shown;
[0038] Figure 2 A schematic structural diagram of an adaptive loading test fixture according to an exemplary embodiment of the present disclosure is shown;
[0039] Figure 3A schematic structural diagram of a fastening seat from a first perspective according to an exemplary embodiment of the present disclosure is shown;
[0040] Figure 4 A schematic structural diagram of a clamping body and a test piece according to an exemplary embodiment of the present disclosure is shown;
[0041] Figure 5 A schematic structural diagram of a second clamping block according to an exemplary embodiment of the present disclosure is shown;
[0042] Figure 6 A structural schematic diagram of a fastening base from a second viewing angle according to an exemplary embodiment of the present disclosure is shown;
[0043] Figure 7 A schematic flow chart of an adaptive loading test method according to an exemplary embodiment of the present disclosure is shown;
[0044] Figure 8 A schematic flow chart of an adaptive loading test method according to another exemplary embodiment of the present disclosure is shown.
[0045] Description of reference numerals:
[0046] 1. Adaptive loading test fixture; 11. Clamping assembly; 12. Fastening seat; 121. Main body; 122. Opening; 123. First surface; 124. Second surface; 125. First opening; 126. Second opening; 127. First inclined surface; 128. First limiting structure; 13. Clamping body; 131. First clamping block; 132. Second clamping block; 133. Second inclined surface; 134. Second limiting structure; 135. Third inclined surface; 136. Fourth inclined surface; 14. Connecting member; 141. First connecting portion; 142. Pressing surface; 143. Second connecting portion;
[0047] 2. Test piece; 21. First clamping section; 22. Test section; 23. Second clamping section;
[0048] 3. Loading test machine; 31. Test connection part; 32. Tension and compression device; 33. Heating device;
[0049] X, first direction; Y, second direction. DETAILED DESCRIPTION
[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.
[0051] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.
[0052] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second", etc. are used merely as labels and are not intended to limit the quantity of their objects.
[0053] like Figures 1 to 6 As shown, the present disclosure first provides an adaptive loading test fixture 1. The adaptive loading test fixture 1 can be adaptively adjusted according to the thickness of the test piece 2 to meet the clamping requirements of the test pieces 2 of different thicknesses.
[0054] The adaptive loading test fixture 1 may include: a clamping assembly 11. The clamping assembly 11 may include: a fastening seat 12, a clamping body 13 and a connecting piece 14. Among them, the fastening seat 12 may include: a main body 121 and an opening 122. The main body 121 may have a first surface 123 and a second surface 124 that are arranged opposite to each other, the opening 122 may penetrate the main body 121 along the first direction X, and the opening 122 may have a first opening 125 and a second opening 126, the first opening 125 may be located on the first surface 123, and the second opening 126 may be located on the second surface 124.
[0055] The clamping body 13 may include: a first clamping block 131 and a second clamping block 132, the test piece 2 may be located between the first clamping block 131 and the second clamping block 132, and at least a portion of the first clamping block 131 and at least a portion of the second clamping block 132 may enter the opening portion 122 through the first opening 125. The connecting member 14 may be connected to the fastening seat 12, and the connecting member 14 may be connected to the loading test machine 3.
[0056] The first clamping block 131 and the second clamping block 132 are arranged opposite to each other in the width direction of the opening 122, the side wall of the opening 122 may have a first inclined surface 127, and the width of the opening 122 at the first inclined surface 127 gradually decreases along the first direction X, and the clamping body 13 contacts the first inclined surface 127. The first direction X may be the direction from the first surface 123 to the second surface 124.
[0057] In the adaptive loading test fixture 1 provided by the present disclosure, the test piece 2 may be located between the first clamping block 131 and the second clamping block 132 , so that the test piece 2 is clamped by the first clamping block 131 and the second clamping block 132 .
[0058] At least part of the first clamping block 131 and at least part of the second clamping block 132 can enter the opening 122 through the first opening 125, and the clamping body 13 can contact the first inclined surface 127. Therefore, the first clamping block 131 and the second clamping block 132 can approach each other under the action of the first inclined surface 127, so that the test pieces 2 of different thicknesses can be automatically clamped, thereby achieving the purpose of adaptively clamping the test pieces 2 of different thicknesses.
[0059] Therefore, the adaptive loading test fixture 1 provided in the present invention can be adaptively adjusted according to the thickness of the test piece 2 to meet the clamping needs of the test pieces 2 of different thicknesses. It is no longer necessary to separately manufacture test fixtures of different specifications for the test pieces 2 of different thicknesses, thereby avoiding waste of resources and effectively reducing the test cost of fatigue testing.
[0060] In one embodiment of the present disclosure, Figures 2 to 5 As shown, the clamping body 13 may be provided with a second inclined surface 133. When the clamping body 13 is located in the opening 122, the second inclined surface 133 may contact the first inclined surface 127. In this way, the first inclined surface 127 and the second inclined surface 133 may be used to facilitate the downward movement of the clamping body 13, so that the first clamping block 131 and the second clamping block 132 may be closer to each other more smoothly.
[0061] In this embodiment, the slopes of the first inclined surface 127 and the second inclined surface 133 can be the same. With such a configuration, the first inclined surface 127 and the second inclined surface 133 can fit more closely, so that the clamping block can slide down more smoothly. At the same time, the clamping body 13 and the first inclined surface 127 can be in surface contact, reducing the interaction force between the clamping body 13 and the first inclined surface 127, avoiding damage to the clamping body 13 or the fastening seat 12 due to excessive interaction force between the clamping body 13 and the first inclined surface 127, thereby significantly improving the service life of the adaptive loading test fixture 1.
[0062] In one embodiment of the present disclosure, the opening 122 may further include: a first limiting structure 128. The first limiting structure 128 may be located on the side wall of the opening 122 to limit the clamping body 13. The clamping body 13 may further include: a second limiting structure 134, the second limiting structure 134 may be located on the surface of the clamping body 13, and the second limiting structure 134 and the first limiting structure 128 may be limited and matched to ensure that the clamping body 13 can be accurately aligned to avoid damage during subsequent loading tests due to inaccurate alignment of the clamping body 13.
[0063] In this embodiment, the first limiting structure 128 may be located at the first inclined surface 127, and the second limiting structure 134 may be located at the second inclined surface 133. The first limiting structure 128 may be a limiting rib, and the second limiting structure 134 may be a limiting groove, and the limiting rib may be located in the limiting groove, so that the first limiting structure 128 and the second limiting structure 134 can be limited and matched.
[0064] Alternatively, the first limiting structure 128 may be a limiting groove, and the second limiting structure 134 may be a limiting rib, and the limiting rib may be located in the limiting groove, so that the first limiting structure 128 and the second limiting structure 134 can be matched in a limiting manner.
[0065] In one embodiment, the first inclined surface 127 may include: a first inclined surface and a second inclined surface. The first inclined surface and the second inclined surface may be arranged relatively spaced apart along the second direction Y. The second inclined surface 133 may include: a third inclined surface 135 and a fourth inclined surface 136. The third inclined surface 135 may be located on a side of the first clamping block 131 away from the second clamping block 132, and the fourth inclined surface 136 may be located on a side of the second clamping block 132 away from the first clamping block 131. When the clamping body 13 is located at the opening 122, the third inclined surface 135 may contact the first inclined surface, and the fourth inclined surface 136 may contact the second inclined surface.
[0066] With such arrangement, the first clamping block 131 and the side wall of the opening 122, and the second clamping block 132 and the side wall of the opening 122 can be more closely fitted, so that the clamping body 13 can slide down more smoothly. At the same time, the first clamping block 131 and the first inclined surface can be in surface contact, reducing the interaction force between the first clamping block 131 and the first inclined surface, avoiding damage to the clamping body 13 or the fastening seat 12 due to excessive interaction force between the first clamping block 131 and the first inclined surface, thereby improving the service life of the adaptive loading test fixture 1. In addition, the second clamping block 132 and the second inclined surface can be in surface contact, reducing the interaction force between the second clamping block 132 and the second inclined surface, avoiding damage to the clamping body 13 or the fastening seat 12 due to excessive interaction force between the second clamping block 132 and the second inclined surface, thereby further improving the service life of the adaptive loading test fixture 1.
[0067] In one embodiment, the opening portion 122 may have at least two first limiting structures 128, and the first inclined surface and the second inclined surface may be provided with at least one first limiting structure 128. The clamping body 13 may have at least two second limiting structures 134, and the third inclined surface 135 and the fourth inclined surface 136 may be provided with at least one second limiting structure 134. Among them, the first limiting structure 128 located on the first inclined surface may cooperate with the second limiting structure 134 located on the third inclined surface 135, so that the opening portion 122 limits the first clamping block 131. The first limiting structure 128 located on the second inclined surface may cooperate with the second limiting structure 134 located on the fourth inclined surface 136, so that the opening portion 122 limits the second clamping block 132. In this way, the positioning accuracy of the clamping body 13 can be improved.
[0068] In another embodiment of the present disclosure, the first limiting structure 128 may not be a limiting rib or a limiting groove, but may be a clamping groove or a clamping member, etc. The second limiting structure 134 may not be a limiting rib or a limiting groove, but may be a clamping groove or a clamping member, etc. That is, the first limiting structure 128 and the second limiting structure 134 may be limited by clamping the clamping groove and the clamping member, but are not limited thereto.
[0069] In one embodiment of the present disclosure, Figure 2As shown, the connecting member 14 may include: a first connecting portion 141 and a second connecting portion 143. The first connecting portion 141 may be sleeved on the outer peripheral surface of the main body 121, and the first connecting portion 141 may be connected to the main body 121. The inner surface of the first connecting portion 141 may include a pressing surface 142, and the pressing surface 142 may abut against a surface of the first clamping block 131 away from the second opening 126 and a surface of the second clamping block 132 away from the second opening 126.
[0070] It should be noted that the abutment mentioned here means that both the pressing surface 142 and the surface of the first clamping block 131 away from the second opening 126 and the pressing surface 142 and the surface of the second clamping block 132 away from the second opening 126 have interaction forces.
[0071] With such arrangement, the clamping member can be used to clamp the first clamping block 131 and the second clamping block 132 to ensure that the first clamping block 131 and the second clamping block 132 have a higher clamping force on the test piece 2 and prevent the test piece 2 from falling off between the first clamping block 131 and the second clamping block 132.
[0072] In one embodiment, the outer circumference of the main body 121 may have a first locking portion, and the inner circumference of the first connecting portion 141 may have a second locking portion. The main body 121 and the first connecting portion 141 may be locked by the first locking portion and the second locking portion. In this way, the problem of separation of the main body 121 and the connecting member 14 during the loading test can be avoided, and at the same time, it can be ensured that the pressing surface 142 can provide sufficient pressing force to the first clamping block 131 and the second clamping block 132.
[0073] The first locking portion may be a first thread, and the second locking portion may be a second thread matching the first thread. By setting the first locking portion and the second locking portion as threads, the installation and removal of the main body 121 and the connecting member 14 can be facilitated, and the locking effect of the main body 121 and the first connecting portion 141 can also be ensured.
[0074] Furthermore, when the thickness of the test piece 2 is relatively thick, the first clamping block 131 and the second clamping block 132 may protrude from the body portion 121 and the opening portion 122. Therefore, when the first locking portion and the second locking portion are provided as threads, the screwing amount of the threads can be freely selected according to the protrusion amount of the first clamping block 131 and the second clamping block 132 protruding from the body portion 121 and the opening portion 122.
[0075] But not limited to this, the first locking part and the second locking part may not be threads. For example, the first locking part and the second locking part may also be locking structures such as buckles, which can be set according to actual conditions, which is within the protection scope of the present disclosure.
[0076] like Figure 1 and Figure 2 As shown, the second connection portion 143 may be located at a side of the first connection portion 141 away from the main body 121 , and the second connection portion 143 may be used to connect to the loading tester 3 .
[0077] The second connection part 143 may have a connection hole, and the test connection part 31 of the loading test machine 3 may extend into the connection hole and connect with the second connection part 143. The second connection part 143 may be provided with a fixing hole, and a fixing member may pass through the fixing hole to fix the second connection part 143 to the test connection part 31 of the loading test machine 3.
[0078] In one embodiment of the present disclosure, Figure 4 As shown, the first clamping block 131 may have a first friction portion on one side facing the second clamping block 132, and the second clamping block 132 may have a second friction portion on one side facing the first clamping block 131. In this way, the friction between the first clamping block 131 and the test piece 2, and between the second clamping block 132 and the test piece 2 can be increased, and the clamping ability of the first clamping block 131 and the second clamping block 132 on the test piece 2 can be further improved, and the problem of the test piece 2 falling off can be further avoided.
[0079] In one embodiment of the present disclosure, the test piece 2 may include: a first clamping section 21, a test section 22, and a second clamping section 23. The test section 22 may be located between the first clamping section 21 and the second clamping section 23.
[0080] like Figures 1 to 6 As shown, the above-mentioned adaptive loading test fixture 1 may include: two clamping assemblies 11. The first clamping section 21 may be located between the first clamping block 131 and the second clamping block 132 in one of the clamping assemblies 11, and the second clamping section 23 may be located between the first clamping block 131 and the second clamping block 132 in the other clamping assembly 11. In this way, the test piece 2 can be clamped by the two clamping assemblies 11, so as to perform a loading test on the test piece 2.
[0081] Another aspect of the present disclosure provides an adaptive loading test device. Figures 1 to 6 As shown, the adaptive loading test device may include: a loading test machine 3 and an adaptive loading test fixture 1. The loading test machine 3 may have a test connection portion 31. The adaptive loading test fixture 1 may be the adaptive loading test fixture 1 described above, and the connector 14 of the adaptive loading test fixture 1 is connected to the test connection portion 31.
[0082] It should be noted that, since the specific structure and beneficial effects of the adaptive loading test fixture 1 have been described in detail in the previous topic of the present disclosure, the specific structure and beneficial effects of the adaptive loading test fixture 1 will not be repeated in this topic, and the above description can be referred to, which is also within the protection scope of the present disclosure.
[0083] The adaptive loading test device provided by the present disclosure includes the adaptive loading test fixture 1, which may include a clamping assembly 11. The clamping assembly 11 may include a fastening seat 12, a clamping body 13, and a connecting member 14. The test piece 2 may be located between the first clamping block 131 and the second clamping block 132, so as to clamp the test piece 2 by using the first clamping block 131 and the second clamping block 132.
[0084] The first clamping block 131 and the second clamping block 132 may be arranged opposite to each other in the width direction of the opening 122. The side wall of the opening 122 has a first inclined surface 127, and the width of the opening 122 at the first inclined surface 127 gradually decreases along the first direction X. At least part of the first clamping block 131 and at least part of the second clamping block 132 can enter the opening 122 through the first opening 125, and the clamping body 13 can contact the first inclined surface 127. Thus, the first clamping block 131 and the second clamping block 132 can approach each other under the action of the first inclined surface 127, so that the test pieces 2 of different thicknesses can be automatically clamped, thereby achieving the purpose of adaptively clamping the test pieces 2 of different thicknesses.
[0085] Therefore, the adaptive loading test device provided by the present invention can be adaptively adjusted according to the thickness of the test piece 2 to meet the clamping and loading tests of the test pieces 2 with different thicknesses. It is no longer necessary to make test devices of different specifications for the test pieces 2 with different thicknesses, thereby avoiding waste of resources and effectively reducing the test cost of fatigue testing.
[0086] In one embodiment of the present disclosure, Figure 1 As shown, the loading test machine 3 may further include a tension and compression device 32. The tension and compression device 32 may be connected to the test connection portion 31 to apply tension and compression loads to the test piece 2.
[0087] In one embodiment, when the test piece 2 includes a first clamping section 21, a test section 22 and a second clamping section 23, the loading tester 3 may include two test connection parts 31 and two tension and compression devices 32 to simultaneously apply tension and compression loads to the first clamping section 21 and the second clamping section 23 to test the fatigue strength of the test section 22.
[0088] In one embodiment of the present disclosure, the loading test machine 3 may further include: a heating device 33. The test piece 2 may be located in the heating device 33, so that the test piece 2 is heated by the heating device 33. The heating device 33 may be a high temperature furnace, but is not limited thereto.
[0089] In another aspect, the present disclosure provides an adaptive loading test method. Figures 1 to 7 As shown, the adaptive loading test method uses the adaptive loading test device described above. The adaptive loading test method may include:
[0090] Step S10, using the first clamping block 131 and the second clamping block 132 to clamp one end of the test piece 2, and allowing at least a portion of the first clamping block 131 and at least a portion of the second clamping block 132 to enter the opening portion 122 through the first opening 125;
[0091] Step S20, connecting the connecting piece 14 to the test connecting portion 31, and fixing the other end of the test piece 2;
[0092] Step S30 : applying a load to the connecting member 14 by using the loading test machine 3 , so that the load is applied to the test piece 2 through the clamping assembly 11 .
[0093] It should be noted that, since the specific structure and beneficial effects of the adaptive loading test device have been described in detail in the previous topic of the present disclosure, the specific structure and beneficial effects of the adaptive loading test device will not be repeated in this topic, and the above description can be referred to, which is also within the protection scope of the present disclosure.
[0094] The adaptive loading test method provided by the present disclosure applies the above-mentioned adaptive loading test device, which may include: a loading test machine 3 and an adaptive loading test fixture 1. The adaptive loading test fixture 1 may include: a clamping assembly 11. The clamping assembly 11 may include: a fastening seat 12, a clamping body 13 and a connecting member 14. The test piece 2 may be located between the first clamping block 131 and the second clamping block 132, so as to clamp the test piece 2 using the first clamping block 131 and the second clamping block 132.
[0095] The first clamping block 131 and the second clamping block 132 may be arranged opposite to each other in the width direction of the opening 122. The side wall of the opening 122 has a first inclined surface 127, and the width of the opening 122 at the first inclined surface 127 gradually decreases along the first direction X. At least part of the first clamping block 131 and at least part of the second clamping block 132 can enter the opening 122 through the first opening 125, and the clamping body 13 can contact the first inclined surface 127. Thus, the first clamping block 131 and the second clamping block 132 can approach each other under the action of the first inclined surface 127, so that the test pieces 2 of different thicknesses can be automatically clamped, thereby achieving the purpose of adaptively clamping the test pieces 2 of different thicknesses.
[0096] Therefore, the adaptive loading test method provided by the present invention can be adaptively adjusted according to the thickness of the test piece 2 to meet the clamping and loading test of the test pieces 2 with different thicknesses. It is no longer necessary to make test devices of different specifications for the test pieces 2 with different thicknesses, thereby avoiding waste of resources and effectively reducing the test cost of fatigue testing.
[0097] In one embodiment of the present disclosure, in step S10, the first clamping block 131 and the second clamping block 132 can be used to clamp one end of the test piece 2, and at least a portion of the first clamping block 131 and at least a portion of the second clamping block 132 enter the opening portion 122 through the first opening 125; the connecting piece 14 is sleeved on the outer peripheral surface of the main body portion 121, and the first clamping block 131 and the second clamping block 132 are pressed by the clamping surface 142 of the connecting piece 14.
[0098] When the test piece 2 includes a first clamping section 21 , a test section 22 , and a second clamping section 23 , the first clamping block 131 and the second clamping block 132 may be used to clamp the first clamping section 21 of the test piece 2 .
[0099] In step S20 , the connector 14 may be connected to the test connector 31 , and the other end of the test piece 2 may be fixed.
[0100] Specifically, when the test piece 2 includes the first clamping section 21, the test section 22, and the second clamping section 23, the second clamping section 23 of the test piece 2 can be fixed. That is, the first clamping block 131 and the second clamping block 132 of another clamping assembly 11 can be used to clamp the second clamping section 23 of the test piece 2, and at least part of the first clamping block 131 and at least part of the second clamping block 132 can enter the opening portion 122 through the first opening 125; another connecting member 14 is sleeved on the outer peripheral surface of the main body portion 121, and the first clamping block 131 and the second clamping block 132 are pressed by the pressing surface 142 of the connecting member 14. And after the second clamping section 23 of the test piece 2 is fixed, the connecting member 14 can be connected to the test connecting portion 31.
[0101] In one embodiment of the present disclosure, Figure 1 and Figure 8 As shown, after step S20 and before step S30, the adaptive loading test method may further include:
[0102] Step S40: Install the heating device 33 to heat the test piece 2. Specifically, during the entire heating process, the force on the test piece 2 should not exceed the preset percentage value of the material yield strength, and the test temperature should be kept at least for a preset time before entering step S30.
[0103] In one embodiment of the present disclosure, Figure 1 and Figure 8 As shown, after step S20 and before step S40, the adaptive loading test method may further include:
[0104] Step S50: testing the stiffness of the test piece 2 to determine the cycle frequency of the loading load.
[0105] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. An adaptive loading test fixture, characterized in that: include: A clamping assembly, comprising: a fastening seat, a clamping body and a connecting piece, wherein the fastening seat comprises: a main body and an opening, wherein the main body has a first surface and a second surface arranged opposite to each other, wherein the opening penetrates the main body along a first direction, and wherein the opening has a first opening and a second opening, wherein the first opening is located on the first surface, and the second opening is located on the second surface; wherein the clamping body comprises: a first clamping block and a second clamping block, wherein a test piece is located between the first clamping block and the second clamping block, and wherein at least a part of the first clamping block and at least a part of the second clamping block enter into the opening through the first opening; wherein the connecting piece is connected to the fastening seat, and wherein the connecting piece is connected to a loading test machine; Wherein, the first clamping block and the second clamping block are arranged opposite to each other in the width direction of the opening, the side wall of the opening has a first inclined portion, and the width of the opening at the first inclined portion gradually decreases along the first direction, and the clamping body is in contact with the first inclined portion; the first direction is the direction from the first surface to the second surface.
2. The adaptive loading test fixture according to claim 1, characterized in that: The clamping body is provided with a second inclined surface portion, and when the clamping body is located in the opening portion, the second inclined surface portion contacts the first inclined surface portion.
3. The adaptive loading test fixture according to claim 2, characterized in that: The opening portion further comprises: a first limiting structure, the first limiting structure being located on a side wall of the opening portion to limit the clamping body; The clamping body further includes: a second limiting structure, which is located on the surface of the clamping body and cooperates with the first limiting structure in a limiting manner.
4. The adaptive loading test fixture according to claim 3, characterized in that: The first limiting structure is located on the first inclined surface, and the second limiting structure is located on the second inclined surface; The first limiting structure is a limiting rib, the second limiting structure is a limiting groove, and the limiting rib is located in the limiting groove; or the first limiting structure is a limiting groove, the second limiting structure is a limiting rib, and the limiting rib is located in the limiting groove.
5. The adaptive loading test fixture according to claim 3 or 4, characterized in that: The first inclined surface comprises: a first inclined surface and a second inclined surface, wherein the first inclined surface and the second inclined surface are arranged opposite to each other and spaced apart along a second direction; The second inclined surface includes: a third inclined surface and a fourth inclined surface, the third inclined surface is located on a side of the first clamping block away from the second clamping block, and the fourth inclined surface is located on a side of the second clamping block away from the first clamping block; when the clamping body is located in the opening, the third inclined surface contacts the first inclined surface, and the fourth inclined surface contacts the second inclined surface.
6. The adaptive loading test fixture according to claim 5, characterized in that: The opening portion has at least two of the first limiting structures, and the first inclined surface and the second inclined surface are each provided with at least one of the first limiting structures; The clamping body has at least two of the second limiting structures, and the third inclined surface and the fourth inclined surface are each provided with at least one of the second limiting structures; The first limiting structure located on the first inclined surface cooperates with the second limiting structure located on the third inclined surface, and the first limiting structure located on the second inclined surface cooperates with the second limiting structure located on the fourth inclined surface.
7. The adaptive loading test fixture according to any one of claims 1 to 4, characterized in that: The connecting piece comprises: A first connecting portion is sleeved on the outer peripheral surface of the main body and connected to the main body, wherein the inner surface of the first connecting portion includes a pressing surface, and the pressing surface can abut against a side of the first clamping block away from the second opening and a side of the second clamping block away from the second opening; The second connection part is located at a side of the first connection part away from the main body part, and the second connection part is connected to the loading test machine.
8. The adaptive loading test fixture according to any one of claims 1 to 4, characterized in that: The test piece comprises: a first clamping section, a test section and a second clamping section, wherein the test section is located between the first clamping section and the second clamping section; the adaptive loading test fixture comprises: The two clamping assemblies, the first clamping section is located between the first clamping block and the second clamping block in one of the clamping assemblies, and the second clamping section is located between the first clamping block and the second clamping block in the other clamping assembly.
9. An adaptive loading test device, characterized in that: include: A loading test machine having a test connection portion; An adaptive loading test fixture, wherein the adaptive loading test fixture is the adaptive loading test fixture according to any one of claims 1 to 8, and the connecting piece of the adaptive loading test fixture is connected to a test connecting portion.
10. An adaptive loading test method, characterized in that: The adaptive loading test method uses the adaptive loading test device according to claim 9, and the adaptive loading test method includes: Clamping one end of the test piece with the first clamping block and the second clamping block, and allowing at least a portion of the first clamping block and at least a portion of the second clamping block to enter the opening portion through the first opening; Connecting the connecting piece to the test connecting portion and fixing the other end of the test piece; A load is applied to the connecting member using a loading test machine so that the load is applied to the test member through the clamping assembly.