Reliability test fixture and reliability test device

Abstract

The present invention relates to a reliability test fixture and a reliability test device, including a transition plate, a first side plate, a second side plate and a first load-bearing plate. The transition plate is used to be installed on a vibration table. The first side plate and the second side plate are relatively spaced apart and installed on the transition plate. The first load-bearing plate is relatively spaced apart from the transition plate, and both ends of the first load-bearing plate are connected to the first side plate and the second side plate respectively. The transition plate, the first side plate, the second side plate and the first load-bearing plate are all used to install the product to be tested. There is no need to manufacture suitable fixtures for each single component of multiple groups of component products, thus avoiding delaying the progress and reducing the fixture cost; there is no need to conduct reliability tests on single groups of components separately, which can meet the installation requirements of multiple groups of component products to a greater extent, can meet the reliability tests of multiple groups of component products simultaneously, the authenticity of the reliability test results is relatively high, can improve the test efficiency of multiple groups of component products, save manpower and material resources, and reduce the test cost.

Description

Technical Field

[0001] The present invention relates to a test fixture, in particular to a reliability test fixture and a reliability test device. Background Art

[0002] Reliability testing refers to measuring and verifying the reliability of a product through testing. It is an important means to test whether a product meets the reliability index requirements and also an important means to control the product quality. Its test plan is closely related to the product quantity, technical indicators, and test plan number, and the technical indicators and test plan number are generally related to the product technical maturity. A reliability test fixture is used to install the product to be tested and simulate the installation device of the product in the actual use scenario. It is the connection hub between the product and the reliability test chamber.

[0003] Traditional reliability test fixtures are generally universal reliability test fixtures for products with regular shapes and convenient installation. Perhaps they can be utilized after appropriate modification. However, there is no ready-made reliability test fixture for multi-component products at present. It takes a lot of time to design, select suitable materials to manufacture, and then utilize it after meeting the reliability test conditions. Generally, for the reliability test of multi-component products, the multi-component products (also known as combined components or combined systems) are first divided into multiple single-component products, and the multiple single-component products are respectively arranged in different reliability test fixtures for testing. Since the single-component products are subjected to reliability testing with the corresponding reliability test fixtures, this will cause the test time to be very long, occupy a large amount of test facilities and scientific research personnel resources, and also bring a large increase in test costs. Summary of the Invention

[0004] Based on this, it is necessary to overcome the defects of the prior art and provide a reliability test fixture and a reliability test device, which can improve the test efficiency of multi-component products, save manpower and material resources, and reduce the test cost.

[0005] The technical solution is as follows: A reliability test fixture, the reliability test fixture includes:

[0006] A transition plate, the transition plate is used to be installed on a vibration table;

[0007] A first side plate, a second side plate, and a first load-bearing plate, the first side plate and the second side plate are relatively spaced and installed on the transition plate, the first load-bearing plate is relatively spaced from the transition plate, and both ends of the first load-bearing plate are respectively connected to the first side plate and the second side plate;

[0008] The transition plate, the first side plate, the second side plate, and the first load-bearing plate are all used to install the product to be tested.

[0009] When the above-mentioned reliability test fixture is used for testing the product to be tested, the transition plate is fixedly installed on the vibration table. The product to be tested is specifically a multi-group component product. The multi-group component products are divided into multiple single-group components. The multiple single-group components are respectively fixedly installed on the transition plate, the first side plate, the second side plate and the first load-bearing plate according to their actual volume sizes. Then, the vibration table vibrates at a preset vibration frequency to simulate the actual working environment of the product to be tested and carry out the reliability test. When the transition plate vibrates, it synchronously transmits the vibration load to the first side plate, the second side plate and the first load-bearing plate, so that the transition plate, the first side plate, the second side plate and the first load-bearing plate vibrate synchronously at the preset vibration frequency. In this way, there is no need to process and manufacture suitable fixtures for each single-group component of the multi-group component products, which can avoid delaying the progress and reduce the fixture cost; there is no need to conduct reliability tests on the single-group components separately, which can better meet the installation requirements of the multi-group component products during the test, can meet the requirement of conducting reliability tests on the multi-group component products synchronously, and the authenticity of the reliability test results is relatively high. It can improve the test efficiency of the multi-group component products, save manpower and material resources, and reduce the test cost.

[0010] In one embodiment, the reliability test fixture further includes a third side plate and a second load-bearing plate; the third side plate is installed on the transition plate at a relatively spaced interval from the second side plate, the second load-bearing plate is arranged at a relatively spaced interval from the transition plate, and both ends of the second load-bearing plate are respectively connected to the second side plate and the third side plate.

[0011] In one embodiment, the reliability test fixture further includes a third load-bearing plate and a fourth load-bearing plate; the third load-bearing plate is arranged at a relatively spaced interval from the first load-bearing plate, one end of the third load-bearing plate is connected to the first side plate, and the other end of the third load-bearing plate is connected to the second side plate; the fourth load-bearing plate is arranged at a relatively spaced interval from the second load-bearing plate, one end of the fourth load-bearing plate is connected to the second side plate, and the other end of the fourth load-bearing plate is connected to the third side plate.

[0012] In one embodiment, the height of the second side plate is higher than that of the first side plate. One end of the third load-bearing plate is fixedly installed at the top end of the first side plate, and the other end of the third load-bearing plate is fixedly installed on the plate surface of the second side plate; one end of the fourth load-bearing plate is fixedly installed at the top end of the second side plate, and the other end of the fourth load-bearing plate is fixedly installed at the top end of the third side plate; both ends of the first load-bearing plate are respectively fixedly installed on the plate surface of the first side plate and the plate surface of the second side plate; both ends of the second load-bearing plate are respectively fixedly installed on the plate surface of the second side plate and the plate surface of the third side plate.

[0013] In one embodiment, three grooves are provided on the transition plate; mounting blocks are provided at the bottoms of the first side plate, the second side plate, and the third side plate, and the mounting blocks of the first side plate, the mounting blocks of the second side plate, and the mounting blocks of the third side plate are correspondingly arranged in the three grooves of the transition plate; a groove is provided on the first side plate, two grooves are provided on one side surface of the second side plate, mounting blocks are provided at both ends of the first load-bearing plate, and the mounting blocks at both ends of the first load-bearing plate are respectively installed in the groove of the first side plate and one of the grooves on one side surface of the second side plate; a mounting block is provided at one end of the third load-bearing plate, and the mounting block of the third load-bearing plate is installed in the other groove on one side surface of the second side plate; grooves are provided on the other side surface of the second side plate and on the third side plate, mounting blocks are provided at both ends of the second load-bearing plate, and the two mounting blocks of the second load-bearing plate are respectively installed in the grooves on the other side surface of the second side plate and the grooves on the third side plate.

[0014] In one embodiment, the groove is a dovetail groove, and the mounting block is a dovetail block adapted to the dovetail groove; the dovetail block is fixedly arranged in the dovetail groove through a fastener.

[0015] In one embodiment, a plurality of hollow openings are provided on the second side plate.

[0016] In one embodiment, a plurality of first mounting holes are provided on the transition plate, and the transition plate is fixedly installed on the vibration table through a first mounting member passing through the first mounting holes; a plurality of second mounting holes are also provided on the transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, the third load-bearing plate, and the fourth load-bearing plate, and the transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, the third load-bearing plate, and the fourth load-bearing plate are all connected to the product to be tested through a second mounting member passing through the second mounting holes.

[0017] In one embodiment, the transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, and the third load-bearing plate are all made of magnesium alloy plate, stainless steel plate, iron plate, copper plate, or aluminum plate.

[0018] A reliability test device includes the reliability test fixture as described above, and further includes a vibration table and a sensor. The transition plate is installed on the vibration table; the sensor is installed on the reliability test fixture.

[0019] When the above-mentioned reliability test device is in use, the transition plate is fixedly installed on the vibration table. The product to be tested is specifically a multi-group component product. The multi-group component product is divided into multiple single-group components. The multiple single-group components are respectively fixed on the transition plate, the first side plate, the second side plate and the first load-bearing plate according to the actual volume and size. Then, the vibration table vibrates at a preset vibration frequency to simulate the actual working environment of the product to be tested and carry out the reliability test. When the transition plate vibrates, it synchronously transfers the vibration load to the first side plate, the second side plate and the first load-bearing plate, so that the transition plate, the first side plate, the second side plate and the first load-bearing plate vibrate synchronously at the preset vibration frequency. In this way, there is no need to process and manufacture suitable jigs for each single-group component of the multi-group component product, which can avoid delaying the progress and reduce the jig cost; there is no need to separately conduct the reliability test on the single-group components, which can better meet the installation requirements of the multi-group component product test, can meet the synchronous reliability test of the multi-group component product, the authenticity of the reliability test result is relatively high, can improve the test efficiency of the multi-group component product, save manpower and material resources, and reduce the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic view of one perspective of the reliability test fixture in an embodiment of the present invention;

[0023] Figure 2 is Figure 1 an enlarged structural view at A;

[0024] Figure 3 is Figure 1 an enlarged structural view at B;

[0025] Figure 4 It is a schematic view of another perspective of the reliability test fixture in an embodiment of the present invention;

[0026] Figure 5 It is an exploded view of the reliability test fixture in an embodiment of the present invention;

[0027] Figure 6Schematic structural diagram of a transition plate in a reliability test fixture according to an embodiment of the present invention;

[0028] Figure 7 Schematic structural diagram of a second side plate in a reliability test fixture according to an embodiment of the present invention;

[0029] Figure 8 Simplified schematic diagram of a reliability test device according to an embodiment of the present invention.

[0030] 10. Reliability test fixture; 11. Transition plate; 111. First mounting hole; 12. First side plate; 13. Second side plate; 131. Hollow opening; 14. First load-bearing plate; 15. Third side plate; 16. Second load-bearing plate; 17. Third load-bearing plate; 18. Fourth load-bearing plate; 191. Groove; 192. Mounting block; 193. Fastener; 20. Vibration table; 30. Product under test; 40. Sensor. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0037] Refer to Figure 1 、 Figure 4 and Figure 8 , Figure 1 FIG. shows a schematic view of one perspective of the reliability test fixture 10 in an embodiment of the present invention. Figure 4 FIG. shows a schematic view of another perspective of the reliability test fixture 10 in an embodiment of the present invention. Figure 8A simplified schematic diagram of a reliability test device in an embodiment of the present invention is shown. An embodiment of the present invention provides a reliability test fixture 10, and the reliability test fixture 10 includes a transition plate 11, a first side plate 12, a second side plate 13, and a first load-bearing plate 14. The transition plate 11 is used to be installed on a vibration table 20. The first side plate 12 and the second side plate 13 are installed on the transition plate 11 at intervals relative to each other. The first load-bearing plate 14 is arranged at an interval relative to the transition plate 11, and both ends of the first load-bearing plate 14 are connected to the first side plate 12 and the second side plate 13 respectively. The transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 are all used to install a product under test 30.

[0038] When the above-mentioned reliability test fixture 10 is used for testing the product under test 30, the transition plate 11 is fixedly installed on the vibration table 20. The product under test 30 is specifically multiple groups of component products. The multiple groups of component products are divided into multiple single-group components. The multiple single-group components are respectively fixed on the transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 according to the actual volume and size. Then, the vibration table 20 vibrates at a preset vibration frequency to simulate the actual working environment of the product under test 30 and carry out a reliability test. When the transition plate 11 vibrates, it synchronously transmits the vibration load to the first side plate 12, the second side plate 13, and the first load-bearing plate 14, so that the transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 vibrate synchronously at the preset vibration frequency. In this way, there is no need to process and manufacture suitable fixtures for each single-group component of the multiple groups of component products, which can avoid delaying the progress and reduce the fixture cost; there is no need to separately conduct reliability tests on single-group components, which can better meet the installation requirements of the multiple groups of component products during the test, can meet the requirement of synchronous reliability testing of the multiple groups of component products, the authenticity of the reliability test results is relatively high, the testing efficiency of the multiple groups of component products can be improved, manpower and material resources can be saved, and the testing cost can be reduced.

[0039] Further, please refer to Figure 1 、 Figure 4 and Figure 5 , Figure 5The exploded view of the reliability test fixture 10 according to an embodiment of the present invention is shown. The reliability test fixture 10 further includes a third side plate 15 and a second load-bearing plate 16. The third side plate 15 and the second side plate 13 are oppositely and spaced apart and mounted on the transition plate 11. The second load-bearing plate 16 is oppositely and spaced apart from the transition plate 11, and both ends of the second load-bearing plate 16 are respectively connected to the second side plate 13 and the third side plate 15. In this way, multiple single-group components can be mounted not only on the transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 according to the actual volume and size, but also can be fixedly mounted on the third side plate 15 and the second load-bearing plate 16, for example.

[0040] Further, please refer to Figure 1 , Figure 4 and Figure 5 , the reliability test fixture 10 further includes a third load-bearing plate 17 and a fourth load-bearing plate 18. The third load-bearing plate 17 is oppositely and spaced apart from the first load-bearing plate 14. One end of the third load-bearing plate 17 is connected to the first side plate 12, and the other end of the third load-bearing plate 17 is connected to the second side plate 13. The fourth load-bearing plate 18 is oppositely and spaced apart from the second load-bearing plate 16. One end of the fourth load-bearing plate 18 is connected to the second side plate 13, and the other end of the fourth load-bearing plate 18 is connected to the third side plate 15. In this way, multiple single-group components can also be fixedly mounted on the third load-bearing plate 17 and the fourth load-bearing plate 18 according to the actual volume and size, for example.

[0041] In one embodiment, please refer to Figure 1 and Figure 4 again, the height of the second side plate 13 is higher than that of the first side plate 12. One end of the third load-bearing plate 17 is fixedly mounted on the top end of the first side plate 12, and the other end of the third load-bearing plate 17 is fixedly mounted on the plate surface of the second side plate 13. One end of the fourth load-bearing plate 18 is fixedly mounted on the top end of the second side plate 13, and the other end of the fourth load-bearing plate 18 is fixedly mounted on the top end of the third side plate 15. Both ends of the first load-bearing plate 14 are respectively fixedly mounted on the plate surface of the first side plate 12 and the plate surface of the second side plate 13. Both ends of the second load-bearing plate 16 are respectively fixedly mounted on the plate surface of the second side plate 13 and the plate surface of the third side plate 15. In this way, the reliability test fixture 10 has a frame structure, and each component is specifically connected by screws, for example, and can be assembled later, providing sufficient product installation space and facilitating product installation before the test, product removal after the test, and product maintenance during the test.

[0042] The reliability test fixture 10 is an installation device that simulates the installation of the product under test 30 in the actual usage scenario and is the connection hub between the product under test 30 and the reliability test chamber. Whether the reliability test fixture 10 accurately transfers the vibration load of the reliability test to the product under test 30 directly affects the correctness and accuracy of the reliability test results. The requirements for the reliability test fixture 10 in the reliability tests of multiple groups of component products are even more stringent because different groups of components are fixed at different parts of the fixture according to the layout and their vibration loads are also different. Therefore, a suitable reliability test fixture 10 is particularly important.

[0043] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 6 , Figure 2 which shows Figure 1 an enlarged structural schematic diagram at A; Figure 6 which shows the structural schematic diagram of the transition plate 11. Three grooves 191 are provided on the transition plate 11. Mounting blocks 192 are provided at the bottoms of the first side plate 12, the second side plate 13 and the third side plate 15. The mounting blocks 192 of the first side plate 12, the mounting blocks 192 of the second side plate 13 and the mounting blocks 192 of the third side plate 15 are correspondingly arranged in the three grooves 191 of the transition plate 11.

[0044] In one embodiment, please refer to Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , Figure 3 which shows Figure 1 an enlarged structural schematic diagram at B, Figure 6 which shows the structural schematic diagram of the second side plate 13. Grooves 191 are provided on the first side plate 12. Two grooves 191 are provided on one side surface of the second side plate 13. Mounting blocks 192 are provided at both ends of the first load-bearing plate 14. The mounting blocks 192 at both ends of the first load-bearing plate 14 are respectively installed in the grooves 191 of the first side plate 12 and one of the grooves 191 on one side surface of the second side plate 13; A mounting block 192 is provided at one end of the third load-bearing plate 17. The mounting block 192 of the third load-bearing plate 17 is installed in the other groove 191 on one side surface of the second side plate 13.

[0045] In one embodiment, please refer to Figure 1 、 Figure 5 and Figure 6, grooves 191 are provided on another side of the second side plate 13 and on the third side plate 15. Installation blocks 192 are provided at both ends of the second load-bearing plate 16. The two installation blocks 192 of the second load-bearing plate 16 are respectively installed in the grooves 191 on another side of the second side plate 13 and the grooves 191 on the third side plate 15.

[0046] Taking the relationship between the first side plate 12 and the installation block 192 as an example for illustration, the relationships between the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, the third load-bearing plate 17 and the fourth load-bearing plate 18 and the installation block 192 are similar, referring to the relationship between the first side plate 12 and the installation block 192. In the infringement comparison, the "installation block 192" can be "a part of the first side plate 12", that is, the "installation block 192" and the "other parts of the first side plate 12" are integrally formed; or it can be an independent component separable from the "other parts of the first side plate 12", that is, the "installation block 192" can be independently manufactured and then combined with the "other parts of the first side plate 12" into a whole. As Figure 5 shown, in one embodiment, the "installation block 192" is a part integrally formed with the "first side plate 12".

[0047] Further, please refer to Figure 2 or Figure 3 , the groove 191 is a dovetail groove, and the installation block 192 is a dovetail block adapted to the dovetail groove. In this way, the dovetail groove is a trapezoidal surface constraint design, and the dovetail block is stably arranged in the dovetail groove, restricting the lateral vibration and sway displacement of the reliability test fixture 10 during the reliability test, so that the vibration load transmitted by the reliability test fixture 10 is closer to the real result.

[0048] Furthermore, the dovetail block is fixedly arranged in the dovetail groove through the fastener 193. Specifically, the fastener 193 is, for example, a screw, a bolt, a rivet, a pin, etc., which will not be elaborated here. In order to stably install the dovetail block in the dovetail groove, the installation block 192 is fixedly installed in the dovetail groove through a plurality of fasteners 193 arranged at intervals.

[0049] In one embodiment, a plurality of hollow openings 131 are provided on the second side plate 13. In this way, on the one hand, the weight of the second side plate 13 can be reduced by the provided hollow openings 131; on the other hand, the hollow openings 131 can facilitate the passing of cables, that is, it is convenient for the cables of the single-group components arranged on the first load-bearing plate 14 to pass through the hollow openings 131 and then be electrically connected to the single-group components on the second load-bearing plate 16, and it is also convenient for the cables to pass through the hollow openings 131 to electrically connect the two single-group components arranged on the transition plate 11.

[0050] In one embodiment, a plurality of first mounting holes 111 are provided on the transition plate 11, and the transition plate 11 is fixedly mounted on the vibration table 20 through the first mounting members passing through the first mounting holes 111. Specifically, the first mounting holes 111 are arranged in an array on the transition plate 11, and mounting holes corresponding to the first mounting holes 111 are provided on the vibration table 20. Fixing and mounting the transition plate 11 on the vibration table 20 by using a plurality of first mounting members can achieve stable setting of the transition plate 11 on the vibration table 20, and the fixing effect is relatively stable.

[0051] Optionally, a plurality of second mounting holes (not shown in the figure) are also provided on the transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, the third load-bearing plate 17, and the fourth load-bearing plate 18. The transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, the third load-bearing plate 17, and the fourth load-bearing plate 18 are all connected to the product under test 30 through the second mounting members passing through the second mounting holes. Specifically, before mounting the product under test 30 on the transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, the third load-bearing plate 17, and the fourth load-bearing plate 18, second mounting holes corresponding to the positions of the mounting holes of the product under test 30 are opened on the transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, the third load-bearing plate 17, and the fourth load-bearing plate 18, so that the product under test 30 can be quickly and stably mounted on the reliability test fixture 10. In addition, the installation situation of the product under test 30 in actual use can be better simulated, and multiple punching and threading operations can be performed on the transition plate 11, the side plates or the load-bearing plates for repeated use, thereby accelerating the test process and reducing the manufacturing cost and maintenance cost of the reliability test fixture 10.

[0052] In addition, after the second mounting holes are aligned with the mounting holes of the product under test 30, the product under test 30 is fixed to the test fixture by using the second mounting members. The second mounting holes are specifically selected as screw holes, and the second mounting members are specifically, for example, screws or bolts, which can improve the connection strength between the product under test 30 and the reliability test fixture 10, and can effectively transmit the vibration load of the reliability test to the product under test 30, ensuring the test quality and test effect.

[0053] It should be noted that the first mounting members and the second mounting members can both be screws, bolts, pins, rivets, etc. The first mounting holes 111 are mounting holes adapted to the first mounting members, and the second mounting holes are mounting holes adapted to the second mounting members.

[0054] In one embodiment, please refer to Figure 1 , Figure 4 and Figure 5 again. The transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, and the third load-bearing plate 17 are all made of magnesium alloy plate, stainless steel plate, iron plate, copper plate or aluminum plate. In this embodiment, the transition plate 11, the first side plate 12, the second side plate 13, the third side plate 15, the first load-bearing plate 14, the second load-bearing plate 16, and the third load-bearing plate 17 are all magnesium alloy plates. The lightweight design and manufacture using magnesium alloy plates minimize the weight of the reliability test fixture 10, allowing more test products 30 to be installed for testing, reducing test time and test costs.

[0055] In summary, the reliability test fixture 10 described in this embodiment has the following advantages:

[0056] 1. There is no need to manufacture suitable fixtures for each single group of components of multiple groups of component products, thus avoiding delays in progress and reducing fixture costs; there is no need to conduct reliability tests on single groups of components separately, which can better meet the installation requirements for testing multiple groups of component products, can meet the reliability tests of multiple groups of component products simultaneously, the authenticity of the reliability test results is relatively high, can improve the test efficiency for multiple groups of component products, save manpower and material resources, and reduce test costs.

[0057] 2. The dovetail groove is designed with a trapezoidal surface constraint. The dovetail block is stably arranged in the dovetail groove, restricting the lateral vibration and displacement of the reliability test fixture 10 during the reliability test, making the vibration load transmitted by the reliability test fixture 10 closer to the real result.

[0058] 3. On the one hand, the weight of the second side plate 13 can be reduced by the provided hollow opening 131; on the other hand, the hollow opening 131 is conducive to the passing of cables. That is, it is convenient for the cables of the single group of components arranged on the first load-bearing plate 14 to pass through the hollow opening 131 and be electrically connected to the single group of components on the second load-bearing plate 16, and it is also convenient for the cables to pass through the hollow opening 131 to electrically connect the two single groups of components arranged on the transition plate 11.

[0059] 4. It can better simulate the installation situation of the test product 30 during actual use, and multiple holes can be drilled and threaded on the transition plate 11, side plates or load-bearing plates for repeated use, thus accelerating the test process and reducing the manufacturing cost and maintenance cost of the reliability test fixture 10.

[0060] 5. After aligning the second mounting holes with the mounting holes of the product under test 30, the product under test 30 is fixed to the test fixture using a second mounting member. The second mounting holes are specifically selected as screw holes, and the second mounting member is specifically, for example, a screw or a bolt, which can improve the connection strength between the product under test 30 and the reliability test fixture 10, effectively transfer the vibration load of the reliability test to the product under test 30, and ensure the test quality and test effect.

[0061] 6. The reliability test fixture 10 is manufactured using a lightweight design of magnesium alloy plate, which minimizes the weight of the reliability test fixture 10 to the greatest extent. More products under test 30 can be installed for testing, reducing the test time and test cost.

[0062] 7. The reliability test fixture 10 has a frame structure. Each component is specifically, for example, connected by screws and can be assembled later, providing sufficient product installation space, facilitating product installation before the test, product removal after the test, and product maintenance during the test.

[0063] In one embodiment, please refer to Figure 8 , a reliability test device includes the reliability test fixture 10 described in any of the above embodiments, and further includes a vibration table 20 and a sensor 40. The transition plate 11 is installed on the vibration table 20. The sensor 40 is installed on the reliability test fixture 10. Specifically, the sensor 40 is adhesively fixed to the reliability test fixture 10.

[0064] When the above-mentioned reliability test device is used, the transition plate 11 is fixedly installed on the vibration table 20. The product under test 30 is specifically multiple groups of component products. The multiple groups of component products are divided into multiple single-group components. The multiple single-group components are respectively, for example, fixedly installed on the transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 according to their actual volume and size. Then, the vibration table 20 vibrates at a preset vibration frequency to simulate the actual working environment of the product under test 30 and conduct a reliability test. When the transition plate 11 vibrates, it synchronously transfers the vibration load to the first side plate 12, the second side plate 13, and the first load-bearing plate 14, realizing synchronous vibration of the transition plate 11, the first side plate 12, the second side plate 13, and the first load-bearing plate 14 at the preset vibration frequency. In this way, there is no need to manufacture suitable fixtures for each single-group component of the multiple groups of component products, which can avoid delaying the progress and reduce the fixture cost; there is no need to conduct reliability tests on single-group components separately, which can better meet the installation requirements of the multiple groups of component products for testing, enable the multiple groups of component products to conduct reliability tests synchronously, and the authenticity of the reliability test results is relatively high, which can improve the test efficiency of the multiple groups of component products, save manpower and material resources, and reduce the test cost.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as falling within the scope described in this specification.

[0066] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A reliability test fixture, characterized in that, The reliability test fixture includes: A transition plate which is used to be installed on a vibration table; A first side plate, a second side plate and a first load-bearing plate. The first side plate and the second side plate are relatively spaced and installed on the transition plate. The first load-bearing plate is relatively spaced from the transition plate, and both ends of the first load-bearing plate are connected to the first side plate and the second side plate respectively; A third side plate and a second load-bearing plate. The third side plate and the second side plate are relatively spaced and installed on the transition plate. The second load-bearing plate is relatively spaced from the transition plate, and both ends of the second load-bearing plate are connected to the second side plate and the third side plate respectively; The transition plate, the first side plate, the second side plate, the first load-bearing plate, the third side plate and the second load-bearing plate are all used to install the product to be tested.

2. The reliability test fixture according to claim 1, wherein It further includes a third load-bearing plate which is relatively spaced from the first load-bearing plate. One end of the third load-bearing plate is connected to the first side plate, and the other end of the third load-bearing plate is connected to the second side plate.

3. The reliability test fixture according to claim 2, wherein It further includes a fourth load-bearing plate; the fourth load-bearing plate is relatively spaced from the second load-bearing plate. One end of the fourth load-bearing plate is connected to the second side plate, and the other end of the fourth load-bearing plate is connected to the third side plate.

4. The reliability test fixture according to claim 3, characterized in that, The height of the second side plate is higher than that of the first side plate. One end of the third load-bearing plate is fixed on the top end of the first side plate, and the other end of the third load-bearing plate is fixedly installed on the plate surface of the second side plate; one end of the fourth load-bearing plate is fixed on the top end of the second side plate, and the other end of the fourth load-bearing plate is fixed on the top end of the third side plate; both ends of the first load-bearing plate are fixedly installed on the plate surfaces of the first side plate and the second side plate respectively; both ends of the second load-bearing plate are fixedly installed on the plate surfaces of the second side plate and the third side plate respectively.

5. The reliability test fixture according to claim 4, characterized in that, Three grooves are provided on the transition plate; mounting blocks are provided at the bottoms of the first side plate, the second side plate and the third side plate. The mounting blocks of the first side plate, the mounting blocks of the second side plate and the mounting blocks of the third side plate are correspondingly arranged in the three grooves of the transition plate; a groove is provided on the first side plate, two grooves are provided on one side surface of the second side plate, mounting blocks are provided at both ends of the first load-bearing plate, and the mounting blocks at both ends of the first load-bearing plate are respectively installed in the groove of the first side plate and one of the grooves on one side surface of the second side plate; a mounting block is provided at one end of the third load-bearing plate, and the mounting block of the third load-bearing plate is installed in the other groove on one side surface of the second side plate; grooves are provided on the other side surface of the second side plate and the third side plate, mounting blocks are provided at both ends of the second load-bearing plate, and the two mounting blocks of the second load-bearing plate are respectively installed in the grooves on the other side surface of the second side plate and the grooves on the third side plate.

6. The reliability test fixture according to claim 5, wherein The groove is a dovetail groove, and the mounting block is a dovetail block adapted to the dovetail groove; the dovetail block is fixedly arranged in the dovetail groove through a fastener.

7. The reliability test fixture according to claim 3, characterized in that, A plurality of hollow openings are provided on the second side plate.

8. The reliability test fixture according to claim 3, characterized in that, A plurality of first mounting holes are provided on the transition plate, and the transition plate is fixedly mounted on the vibration table through the first mounting member passing through the first mounting holes; a plurality of second mounting holes are further provided on the transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, the third load-bearing plate and the fourth load-bearing plate, and the transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, the third load-bearing plate and the fourth load-bearing plate are all connected to the product under test through the second mounting member passing through the second mounting holes.

9. The reliability test fixture according to claim 3, characterized in that, The transition plate, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate and the third load-bearing plate are all made of magnesium alloy plate, stainless steel plate, iron plate, copper plate or aluminum plate.

10. A reliability test device, characterized in that, It includes the reliability test fixture according to any one of claims 1 to 9, and further includes a vibration table and a sensor, the transition plate is mounted on the vibration table; the sensor is mounted on the reliability test fixture.

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