A test apparatus

Abstract

The application provides a test device, relates to the technical field of vehicle manufacturing, and is used for impact test of a swing arm. The test device comprises an impact load output structure and a fixing tool. The impact load output structure is a roof static pressure testing machine, and the roof static pressure testing machine is provided with a loading pressing plate capable of outputting impact load. The fixing tool comprises a test table, a first fixing part and a second fixing part. The first fixing part and the second fixing part are both used for connecting the swing arm and the test table. The first fixing part is fixedly connected with the test table, and the second fixing part is slidingly connected with the test table. The loading pressing plate can be connected with the second fixing part, so as to transmit the impact load to the second fixing part and push the second fixing part to slide. As above, the application provides a test device capable of performing impact test on the swing arm. The test device uses the roof static pressure testing machine as the impact load output structure, thereby being favorable for reducing the equipment cost.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, specifically to a testing device. Background Technology

[0002] In the context of the current highly developed automotive industry, the assessment of vehicle crash safety has become particularly important. Vehicle crash simulation technology is widely used in the automotive design phase to predict and improve vehicle safety performance.

[0003] Currently, the accuracy of vehicle collision simulation results is often questioned. This is especially true for simulations of vehicle control arms, where inaccurate physical parameters in the simulation model, inaccurate descriptions of material properties, and limitations in the simulation algorithm lead to significant discrepancies between simulation results and actual collision tests. Therefore, providing a testing device to conduct impact tests on the control arms to correct the simulation results and improve their reliability is a pressing technical problem in this field. Utility Model Content

[0004] In view of this, this application provides a testing device that uses a roof static pressure testing machine to conduct impact tests on a swing arm, and can effectively reduce equipment costs.

[0005] To achieve the above objectives, this application provides the following technical solution: A testing apparatus for impact testing of a swing arm, comprising: The impact load output structure is a roof static pressure testing machine, and the roof static pressure testing machine has a loading plate capable of outputting impact loads; The fixed fixture includes a test bench, a first fixing component, and a second fixing component; both the first fixing component and the second fixing component are used to connect the swing arm and the test bench. The first fixing member is fixedly connected to the test bench, and the second fixing member is slidably connected to the test bench; and the loading plate can act on the second fixing member to transfer the impact load to the second fixing member and push the second fixing member to slide.

[0006] When conducting an impact test on the swing arm using the aforementioned testing equipment, firstly, the swing arm can be connected to the test bench using the first and second fixing components; then, adjust the loading plate of the roof static pressure testing machine to an appropriate position, set the target impact parameters, and impact the second fixing component, causing the second fixing component to slide relative to the test bench until the swing arm breaks, thus completing the impact test on the swing arm.

[0007] Furthermore, during the aforementioned impact test, a digital camera can be set up to record the test process, and the inherent force sensor of the vehicle roof static pressure testing machine can be used to collect test data in real time, recording the displacement-force curve during the test. Then, the displacement-force curve obtained from the impact test is compared with the displacement-force curve obtained from Computer Aided Engineering (CAE) simulation in terms of curve trends and extreme values. By adjusting the CAE model parameters, the displacement-force curves of the CAE simulation data and the test data are made consistent within an acceptable range, thus effectively improving the reliability of the simulation results.

[0008] Furthermore, as mentioned above, the test equipment in this application utilizes a roof static pressure testing machine as the output structure for the impact load. This allows for the secondary development and utilization of the roof static pressure testing machine. Since there is no need to set up a dedicated impact load output structure, the cost of the test equipment can be effectively reduced.

[0009] In one alternative embodiment, the loading plate acts on the second fixing member through a transition connector; In a direction perpendicular to the test bench surface, the transition connector is located on the upper side of the test bench; and in a first direction, the transition connector is located on the side of the first fixing member closer to the second fixing member, the first direction being parallel to the test bench surface and perpendicular to the sliding direction of the second fixing member.

[0010] In this embodiment, a transition connector is provided between the loading plate and the second fixing member, and the two are connected by the transition connector. During the test, the transition connector moves with the loading plate. Since the transition connector is located on the upper side of the test bench and on the side of the first fixing member closer to the second fixing member, the transition connector will not interfere with the test bench and the first fixing member during the above-mentioned movement process, thereby ensuring the smooth implementation of the test and helping to ensure the test accuracy.

[0011] In one alternative implementation, the transition connector includes: The first connecting part includes a first connecting plate, and the first connecting plate has a connecting surface that connects to the loading pressure plate surface; The second connecting part is fixedly connected to the first connecting part, and a connecting rod is provided on the side of the second connecting part away from the first connecting part, the connecting rod being able to abut against the second fixing member.

[0012] In this embodiment, the first connecting part and the loading plate are connected by a surface, which can effectively disperse the impact load output by the loading plate and avoid structural damage caused by local stress concentration. The second connecting part is provided with a connecting rod that abuts against the second fixing member. In this way, during the test, the impact load generated by the loading plate can be evenly dispersed through the surface contact of the first connecting part, and then concentrated and transmitted point-to-point through the rigid connecting rod of the second connecting part. This ensures the straightness of the load transmission path and minimizes energy loss through structural optimization, ultimately achieving efficient and accurate transmission of the impact load to the second fixing member.

[0013] In one optional embodiment, a first limiting block and a second limiting block are respectively provided at both ends of the connecting rod; The second fixing member has an installation interface; as the loading pressure plate approaches the second fixing member, the installation interface can abut against the connecting rod and engage between the first limiting block and the second limiting block.

[0014] In this embodiment, the first and second limiting blocks at both ends of the connecting rod can form a positioning range. During the assembly process, by controlling the assembly accuracy, when the loading plate moves in a controlled manner closer to the second fixing member, the installation interface can be accurately engaged within the positioning range formed by the first and second limiting blocks, which is beneficial to improving the connection accuracy of the transition connector and the second fixing member.

[0015] In one optional embodiment, the top of the test bench is provided with a plurality of fixing slots, and the bottom width of the fixing slot is greater than the opening width of the fixing slot, so that the fixing slot can be used to detachably connect the first fixing member and the second fixing member.

[0016] In this embodiment, the testing equipment can replace different first and / or second fixing components according to the model of the swing arm, and adjust the fixing positions of the first and / or second fixing components, thereby making the testing equipment in this embodiment suitable for impact testing of different models of swing arms. In other words, this embodiment effectively improves the applicability of the testing equipment by setting a fixing groove on the top of the test bench, so that the first and second fixing components can be detachably connected to the test bench.

[0017] Furthermore, continuing as described above, the test bench includes a T-slot platform. It is understood that the T-slot platform includes multiple parallel and spaced T-slots. During assembly, each T-slot can be used to connect the first and / or second fixing components to the test bench. In this way, the fixing position of the first and / or second fixing components on the test bench can be adjusted as needed, and it is also easier for the test bench to connect with different first and / or second fixing components. This facilitates the fixed connection of the test bench with different types of swing arms, further improving the applicability of the test equipment.

[0018] In one alternative embodiment, the first fastener includes: The first fixed seat is fixedly connected to the test bench and has a first fixed part, which is used to connect the first bushing connection end of the swing arm; The second fixing seat is fixedly connected to the test bench and has a second fixing part, which is used to connect the second bushing connection end of the swing arm.

[0019] In this embodiment, different fixed seats are fixedly connected to different bushing connection ends of the swing arm. With this configuration, by replacing different first and / or second fixed seats, or adjusting the relative positions of the first and second fixed seats, the testing equipment can be adapted to perform impact tests on different models of swing arms. In other words, the above-mentioned configuration in this embodiment, while ensuring the versatility of the testing equipment, helps to reduce the number of spare parts, thereby reducing equipment costs.

[0020] In one alternative embodiment, the second fastener includes: The sliding seat is slidably connected to the test bench; The connecting bracket is detachably connected to the sliding seat and has a third connecting part for connecting the ball joint end of the swing arm.

[0021] In this embodiment, since the connecting frame and the sliding seat are detachably connected, when it is necessary to adapt to different models of swing arms, only the connecting frame with the corresponding interface specification needs to be replaced, without changing the main structure of the sliding seat and the basic layout of the test bench. This modular design not only ensures that the second fixing component can be connected to swing arms of different specifications, but also maintains the stability of the overall structure through the standardized sliding seat, thereby improving the versatility and testing efficiency of the test equipment.

[0022] In one optional embodiment, the sliding seat and the test bench are slidably connected by a sliding structure, the sliding structure comprising: A slide rail is provided on the test bench and extends along the sliding direction of the second fixing member; A groove is formed at the bottom of the sliding seat and can slide in conjunction with the slide rail.

[0023] In this embodiment, the sliding direction of the sliding seat relative to the test bench is constrained by the limiting cooperation of the slide groove and the slide rail, thereby improving the consistency of test results. Furthermore, since the slide rail is set on the test bench and extends along the sliding direction of the second fixing member, the slide groove is formed at the bottom of the sliding seat and can slide in cooperation with the slide rail. Compared to the technical solution of setting a slide groove on the test bench and setting a slider on the sliding seat, this embodiment chooses to install the slide rail on the test bench, making it protrude from the test bench surface. When the test bench includes a T-slot platform, this design can effectively avoid interference between the T-slot and the sliding structure, thereby ensuring that the sliding seat can slide smoothly on the test bench.

[0024] In one alternative embodiment, the sliding structure includes multiple slide rails arranged side by side, and the multiple slide rails are detachably connected to the test bench via the same slide rail fixing seat.

[0025] This embodiment, by setting multiple slide rails, can distribute the load and enhance the stability of the overall structure. Furthermore, since the multiple slide rails are detachably connected to the test bench via the same slide rail mounting base, when the position of the slide rails needs to be adjusted, the positions of multiple slide rails can be adjusted simultaneously by moving the slide rail mounting base. Moreover, during the adjustment process, the relative positions between different slide rails are not affected, thus facilitating rapid adjustment of the slide rails and improving testing efficiency.

[0026] In one optional embodiment, a limiting structure is provided between the slide groove and the slide rail. The limiting structure is used to restrict the sliding seat from moving in a direction perpendicular to the test bench surface, and the limiting structure includes a limiting protrusion and a limiting groove. The limiting protrusion is located on the side wall of the slide rail and extends along the length of the slide rail; the limiting groove is located on the side wall of the slide groove and slides in cooperation with the limiting protrusion; or the limiting groove is located on the side wall of the slide rail and extends along the length of the slide rail; the limiting protrusion is located on the side wall of the slide groove and slides in cooperation with the limiting groove.

[0027] In this embodiment, the limiting structure effectively restricts unnecessary offset or wobbling of the sliding seat in the direction perpendicular to the test platform, thereby ensuring the accuracy and stability of the sliding seat movement during the test. Furthermore, as mentioned above, in this embodiment, the limiting structure is located between the slide groove and the slide rail; that is, the limiting structure and the sliding structure are integrated into one unit. This eliminates the need for additional structures between the sliding seat and the test platform, thus simplifying the structure. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a fixture shown for some embodiments of this application.

[0030] Figure 2 This is a schematic diagram showing, for some embodiments of this application, that both the first and second fasteners are connected to the test bench.

[0031] Figure 3 This is a schematic diagram of a transition connector shown for some embodiments of this application.

[0032] Figure 4 The diagram shows a test bench for some embodiments of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Test bench; 2. First fixing component; 3. Second fixing component; 4. Transition connector; 5. Swing arm; 6. Slide rail; 7. Slide rail fixing seat; 101. Body; 102. T-slot platform; 201. First fixing seat; 202. Second fixing seat; 301. Sliding seat; 302. Connecting frame; 303. Mounting interface; 401. First connecting plate; 402. Connecting rod; 403. Second connecting plate; 404. Third connecting plate; 405. Connecting bracket; 406. Rib plate; 407. First limiting block; 408. Second limiting block. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] like Figures 1-4 As shown in the figure, this application provides a test device, which includes an impact load output structure (not shown) and a fixing fixture.

[0036] The impact load output structure is a roof static pressure testing machine, and the roof static pressure testing machine has a loading plate capable of outputting impact loads.

[0037] It should be noted that the aforementioned roof static pressure testing machine is a test device used in the prior art for testing the static pressure strength of the roof. Therefore, the specific structure of the roof static pressure testing machine can be referred to the prior art, and will not be described in detail here.

[0038] The fixed fixture includes a test bench 1, a first fixing member 2, and a second fixing member 3. The test bench 1 is a frame structure in the testing equipment used to support the swing arm 5. By raising the fixing surface used to fix the swing arm 5, the test bench 1 solves the problem that the adjustable range of the loading plate in the height direction of the roof static pressure testing machine is limited, preventing the loading plate from acting on the swing arm 5. Both the first fixing member 2 and the second fixing member 3 are used to connect the swing arm 5 to the test bench 1. Specifically, during the test, the first fixing member 2 and the second fixing member 3 can be connected to the test bench 1 first, and then fixedly connected to different connecting ends of the swing arm 5 to achieve the connection between the swing arm 5 and the test bench 1.

[0039] Furthermore, in this embodiment, the first fixing member 2 is fixedly connected to the test bench 1, and the second fixing member 3 is slidably connected to the test bench 1. The loading plate can act on the second fixing member 3 to transfer the impact load to the second fixing member 3 and push it to slide. Thus, when using the testing equipment in this embodiment to conduct an impact test on the swing arm 5, firstly, the swing arm 5 can be connected to the test bench 1 using the first fixing member 2 and the second fixing member 3; then, the loading plate of the roof static pressure testing machine is adjusted to an appropriate position, and the target impact parameters are set to impact the second fixing member 3, thus conducting an impact test on the swing arm 5. Furthermore, during the above impact test, a digital camera can be set up to record the test process, and the inherent force sensor of the roof static pressure testing machine can be used to collect test data in real time and record the displacement-force curve during the test process. Then, the displacement-force curve obtained from the impact test is compared with the displacement-force curve obtained from computer-aided engineering (CAE) simulation in terms of curve trend and extreme values. By adjusting the CAE model parameters, the displacement-force curves of the CAE simulation data and the test data are made consistent within an acceptable range. In this way, the reliability of the simulation results can be effectively improved.

[0040] Furthermore, as mentioned above, the test equipment in this embodiment utilizes a roof static pressure testing machine as the output structure for the impact load. This allows for the secondary development and utilization of the roof static pressure testing machine. Since there is no need to set up a dedicated impact load output structure, the cost of the test equipment can be effectively reduced.

[0041] In some embodiments, such as Figure 1As shown, the test equipment also includes a transition connector 4 for connecting the loading plate and the second fixing member 3; in a direction perpendicular to the table surface of the test bench 1, the transition connector 4 is located on the upper side of the test bench 1; and, in a first direction, the transition connector 4 is located on the side of the first fixing member 2 closer to the second fixing member 3, the first direction being parallel to the table surface and perpendicular to the sliding direction of the second fixing member 3; specifically, this first direction can be referred to Figure 1 The X direction in the equation.

[0042] As can be understood, as mentioned above, the impact load output structure of the test equipment is a roof static pressure tester. The loading plate of the roof static pressure tester has a large force application surface. Based on this, if the transition connector 4 is not set, during the test, if the loading plate is directly connected to the second fixing member 3, interference can easily occur between the loading plate and other structures (such as the first fixing member 2), which will affect the test accuracy and may even cause the test to fail.

[0043] As described above, in this embodiment, a transition connector 4 is provided between the loading plate and the second fixing member 3, and they are connected by the transition connector 4. During the test, the transition connector 4 moves with the loading plate. Since the transition connector 4 is located on the upper side of the test bench 1 and on the side of the first fixing member 2 closer to the second fixing member 3, the transition connector 4 will not interfere with the test bench 1 and the first fixing member 2 during the above-mentioned movement process, thereby ensuring the smooth implementation of the test and helping to ensure the test accuracy.

[0044] In some embodiments, such as Figure 3 As shown, the transition connector 4 includes a first connecting part and a second connecting part. The first connecting part includes a first connecting plate 401, and the first connecting plate 401 has a connecting surface that connects with the loading pressure plate surface. The second connecting part is fixedly connected to the first connecting part, and a connecting rod 402 is provided on the side of the second connecting part away from the first connecting part. The connecting rod 402 is used to connect the second fixing member 3.

[0045] As described above, in this embodiment, the first connecting part and the loading plate are connected by a surface, which can effectively disperse the impact load output by the loading plate and avoid structural damage caused by local stress concentration. The second connecting part is provided with a connecting rod 402 connected to the second fixing member 3. In this way, during the test, the impact load generated by the loading plate can be evenly dispersed through the surface contact of the first connecting part, and then concentrated and transmitted point-to-point through the rigid connecting rod 402 of the second connecting part. This ensures the straightness of the load transmission path and minimizes energy loss through structural optimization, ultimately achieving efficient and accurate transmission of the impact load to the second fixing member 3.

[0046] Furthermore, in exemplary embodiments, such as Figure 3As shown, the first connecting part also includes a second connecting plate 403. The first connecting plate 401 and the second connecting plate 403 are parallel and spaced apart, and the first connecting plate 401 and the second connecting plate 403 are fixedly connected by a connecting bracket 405. The connecting bracket 405 can be exemplarily set as an I-shaped bracket, which helps to improve the connection strength between the first connecting plate 401 and the second connecting plate 403.

[0047] Furthermore, the second connecting portion also includes a third connecting plate 404, the surface of which is perpendicular to the surface of the first connecting plate 401. In the direction perpendicular to the connecting surface, one side of the third connecting plate 404 is fixedly connected to the second connecting plate 403, and the other side is connected to the aforementioned connecting rod 402. Further, the second connecting portion also includes a rib 406, which is disposed between the second connecting plate 403 and the third connecting plate 404, and serves to strengthen the structural strength of the transition connector 4.

[0048] In this embodiment, by setting the second connecting plate 403, the connecting bracket 405 and the third connecting plate 404, the size of the transition connector 4 in the sliding direction of the second fixing member 3 can be increased, which is conducive to increasing the stroke of the loading plate and ensuring the smooth progress of the test.

[0049] In some embodiments, such as Figure 3 As shown, the two ends of the connecting rod 402 are respectively provided with a first limiting block 407 and a second limiting block 408; the second fixing member 3 has an installation interface 303; as the loading plate approaches the second fixing member 3, the installation interface 303 can abut against the connecting rod 402 and be engaged between the first limiting block 407 and the second limiting block 408 to realize the connection between the loading plate and the second fixing member 3.

[0050] In this embodiment, the first limiting block 407 and the second limiting block 408 at both ends of the connecting rod 402 can form a positioning interval. During the assembly process, by controlling the assembly accuracy, when the loading plate is controlled to move closer to the second fixing member 3, the installation interface 303 can be accurately engaged in the positioning interval formed by the first limiting block 407 and the second limiting block 408, which is conducive to improving the connection accuracy of the transition connecting member 4 and the second fixing member 3.

[0051] In some embodiments, the top of the test bench 1 is provided with a plurality of fixing grooves, and the bottom width of the fixing groove is greater than the opening width of the fixing groove, so that the fixing groove can be used for detachably connecting the first fixing member 2 and the second fixing member 3.

[0052] Specifically, the first fixing member 2 and the second fixing member 3 are detachably connected to the test bench 1 by bolts. During assembly, the bolts are inverted, and the bolt nuts are engaged in the fixing grooves. Since the bottom width of the fixing groove is greater than the opening width of the fixing groove, the fixing groove can restrict the movement of the bolts in a direction perpendicular to the test bench surface after the bolt nuts are engaged in the fixing grooves. Based on this, after the bolt nuts are engaged in the fixing grooves, the position of the bolts is adjusted, and the bolt studs pass through the aforementioned through holes. Then, tightening the lock nut completes the connection between the first fixing member 2 and the second fixing member 3 and the test bench 1.

[0053] As described above, in this embodiment, the first fixing member 2 and the second fixing member 3 are detachably connected to the test bench 1. This arrangement allows the testing equipment to replace different first fixing members 2 and / or second fixing members 3 according to the model of the swing arm 5, thereby making the testing equipment in this embodiment suitable for impact testing of different models of swing arms 5. In other words, by setting the first fixing member 2 and the second fixing member 3 to be detachably connected to the test bench 1, this embodiment effectively improves the applicability of the testing equipment.

[0054] Understandably, when different models of swing arms 5 are used for impact testing, the fixing positions of the first fixing member 2 and the second fixing member 3 need to be adjusted due to the differences in size between the different models of swing arms 5. As mentioned above, this embodiment fixes the first fixing member 2 and the second fixing member 3 by setting a fixing groove on the top of the test bench 1; with this setting, the fixing positions of the first fixing member 2 and the second fixing member 3 can be infinitely adjusted in the length direction of the fixing groove; thus, it is beneficial to fix the test bench 1 with different models of swing arms 5, further improving the applicability of the test equipment.

[0055] It should be noted that the aforementioned fixing groove can be a T-groove or a dovetail groove, etc., and this application does not make any specific limitation in this regard.

[0056] Furthermore, the extension directions of multiple fixing slots can be consistent or inconsistent; that is, in specific implementation, multiple fixing slots can be parallel to each other or staggered.

[0057] In one exemplary implementation, such as Figure 4 As shown, the test bench 1 includes a body 101 and a T-slot platform 102. The T-slot platform 102 is located on top of the body 101 and includes multiple parallel and spaced T-slots.

[0058] In some embodiments, such as Figure 1 and Figure 2 As shown, the first fixing member 2 includes a first fixing seat 201 and a second fixing seat 202.

[0059] The first fixing seat 201 is fixedly connected to the test bench 1 and has a first fixing part, which is used to connect the first bushing connection end of the swing arm 5. The second fixing seat 202 is fixedly connected to the test bench 1 and has a second fixing part, which is used to connect the second bushing connection end of the swing arm 5.

[0060] The first bushing connection end and the second bushing connection end of the aforementioned swing arm 5 refer to the two connection ends that connect the swing arm 5 to the vehicle frame or subframe. Specifically, during vehicle assembly, the aforementioned first bushing connection end and second bushing connection end can be connected to the vehicle frame or subframe through bushings or other structures.

[0061] In this embodiment, different fixed seats are fixedly connected to different bushing connection ends of the swing arm 5. With this configuration, by replacing different first fixed seats 201 and / or second fixed seats 202, or adjusting the relative positions of the first fixed seats 201 and second fixed seats 202, the testing equipment can be adapted to perform impact tests on different models of swing arms 5. In other words, the above-mentioned configuration in this embodiment, while ensuring the versatility of the testing equipment, helps to reduce the number of spare parts, thereby reducing equipment costs.

[0062] Of course, in some other embodiments, the first fixing member 2 can also be set as an integral part, that is, the first fixing seat 201 and the second fixing seat 202 mentioned above are integrated into one piece, which is beneficial to improve the overall integrity of the fixing fixture.

[0063] In some embodiments, such as Figure 1 and Figure 2 As shown, the second fixing member 3 includes a sliding seat 301 and a connecting bracket 302.

[0064] The sliding seat 301 is slidably connected to the test bench 1, and the connecting frame 302 is detachably connected to the sliding seat 301 and has a third connecting part, which is used to connect the ball joint end of the rocker arm 5 (the ball joint end refers to the position where the rocker arm 5 is connected to the steering knuckle).

[0065] In this embodiment, since the connecting frame 302 and the sliding seat 301 are detachably connected, when it is necessary to adapt to different models of swing arms 5, only the connecting frame 302 with the corresponding interface specification needs to be replaced, without changing the main structure of the sliding seat 301 and the basic layout of the test bench 1. This modular design ensures that the second fixing component 3 can be connected to swing arms 5 of different specifications, and maintains the stability of the overall structure through the standardized sliding seat 301, thereby improving the versatility and testing efficiency of the test equipment.

[0066] Furthermore, in some embodiments, the connecting frame 302 and the sliding seat 301 are detachably connected by a threaded structure. For example, the sliding seat 301 is provided with multiple threaded holes, and the connecting frame 302 is provided with through holes at the corresponding positions of the threaded holes. During installation, the connecting thread can pass through the through holes on the connecting frame 302 and be tightened into the threaded holes on the sliding seat 301; thus, the connection between the connecting frame 302 and the sliding seat 301 is achieved.

[0067] Of course, the detachable connection between the connecting frame 302 and the sliding seat 301 via the threaded structure is only an exemplary connection method between the connecting frame 302 and the sliding seat 301. This application is not limited to this. For example, the connecting frame 302 and the sliding seat 301 can also be detachably connected via a flange structure; or the connecting frame 302 and the sliding seat 301 can also be detachably connected via a snap-fit ​​structure in conjunction with a threaded structure.

[0068] Furthermore, based on the second fixing member 3 mentioned above, which includes a sliding seat 301 and a connecting frame 302, the mounting interface 303 is located on the sliding seat 301. In this way, when different connecting frames 302 are replaced, the position of the mounting interface 303 will not change, which helps to avoid repeated adjustments of the loading plate and improves the efficiency of the test.

[0069] The sliding seat 301 can be directly placed on the test bench 1 to achieve a sliding connection between the sliding seat 301 and the test bench 1. However, in this configuration, due to the lack of constraints, the sliding seat 301 can slide in multiple directions. Specifically, the sliding seat 301 can slide in multiple directions parallel to the surface of the test bench 1. This will undoubtedly affect the consistency of the test results.

[0070] Based on this, in some embodiments, such as Figure 1 and Figure 2 As shown, the sliding seat 301 is slidably connected to the test bench 1 via a sliding structure, which includes a slide rail 6 and a slide groove. With the limiting cooperation of the slide groove and the slide rail 6, the sliding direction of the sliding seat 301 relative to the test bench 1 can be constrained, thereby improving the consistency of the test results.

[0071] Furthermore, the slide rail 6 is disposed on the test bench 1 and extends along the sliding direction of the second fixing member 3. A groove is formed at the bottom of the sliding seat 301 and can slide in cooperation with the slide rail 6. Compared with the technical solution of setting a groove on the test bench 1 and setting a slider on the sliding seat 301, this embodiment chooses to install the slide rail 6 on the test bench 1, so that it protrudes from the test bench 1 surface. When the test bench 1 includes a T-slot platform 102, this design can effectively avoid interference between the T-slot and the sliding structure, thereby ensuring that the sliding seat 301 can slide smoothly on the test bench 1.

[0072] The slide rail 6 can be fixedly mounted on the test bench 1 or detachably connected to the test bench 1. Preferably, the slide rail 6 is detachably connected to the test bench 1, so that the position of the slide rail 6 can be adjusted as needed during the test, thereby improving the versatility of the test equipment.

[0073] Furthermore, the number of slide rails 6 can be adjusted as needed, and this application does not impose specific limitations on this.

[0074] In some embodiments, such as Figure 2 As shown, the sliding structure includes multiple slide rails 6 arranged side by side. By using multiple slide rails 6, the load-bearing capacity can be distributed, enhancing the overall structural stability. Furthermore, the multiple slide rails 6 are detachably connected to the test bench 1 via the same slide rail fixing seat 7. In this way, when the position of the slide rails 6 needs to be adjusted, the positions of multiple slide rails 6 can be adjusted simultaneously by moving the slide rail fixing seat 7. Moreover, the relative positions between different slide rails 6 are not affected during the adjustment process, which facilitates rapid adjustment of the slide rails 6 and thus improves test efficiency.

[0075] Furthermore, the connection method between the slide rail fixing seat 7 and the test bench 1 is not specifically limited in this application. In an exemplary embodiment, the slide rail fixing seat 7 and the test bench 1 can be detachably connected by a threaded structure.

[0076] Furthermore, the slide rail 6 and the slide rail fixing seat 7 can be fixedly connected or detachably connected. This application does not specifically limit this. In an exemplary embodiment, the slide rail fixing seat 7 is provided with multiple slide rail fixing grooves, and multiple slide rails 6 are correspondingly arranged in the slide rail fixing grooves and welded to the slide rail fixing seat 7.

[0077] In some embodiments, a limiting structure is provided between the slide groove and the slide rail 6. The limiting structure is used to restrict the movement of the sliding seat 301 in a direction perpendicular to the test bench 1, and the limiting structure includes a limiting protrusion and a limiting groove. The limiting protrusion is located on the side wall of the slide rail 6 and extends along the length of the slide rail 6, and the limiting groove is located on the side wall of the slide groove and slides in cooperation with the limiting protrusion. Alternatively, the limiting groove is located on the side wall of the slide rail 6 and extends along the length of the slide rail 6, and the limiting protrusion is located on the side wall of the slide groove and slides in cooperation with the limiting groove.

[0078] In this embodiment, the limiting structure effectively restricts unnecessary offset or shaking of the sliding seat 301 in the direction perpendicular to the test bench 1, thereby ensuring the accuracy and stability of the sliding seat 301's movement during the test. Furthermore, as mentioned above, in this embodiment, the limiting structure is located between the slide groove and the slide rail 6, meaning the limiting structure and the sliding structure are integrated into one unit. This eliminates the need for additional structures between the sliding seat 301 and the test bench 1, thus simplifying the structure.

[0079] Furthermore, in some preferred embodiments, limit structures are provided on both sides of the slide rail 6, which helps to improve the uniformity of force distribution and further improve the stability of the sliding seat 301 movement.

[0080] In addition, it should be noted that the first step of the slide rail 6 may be provided with only one set of limiting structures or multiple sets of limiting structures. This application does not make specific limitations on this. In the implementation process, adaptive design can be carried out as needed.

[0081] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0082] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0083] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0084] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0085] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0086] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A testing apparatus for impact testing of a swing arm, characterized in that, include: The impact load output structure is a roof static pressure testing machine, and the roof static pressure testing machine has a loading plate capable of outputting impact loads; The fixed fixture includes a test bench, a first fixing component, and a second fixing component; both the first fixing component and the second fixing component are used to connect the swing arm and the test bench. The first fixing member is fixedly connected to the test bench, and the second fixing member is slidably connected to the test bench; and the loading plate can act on the second fixing member to transfer the impact load to the second fixing member and push the second fixing member to slide.

2. The testing equipment according to claim 1, characterized in that, The loading pressure plate acts on the second fixing member through a transition connector; In a direction perpendicular to the test bench surface, the transition connector is located on the upper side of the test bench; and in a first direction, the transition connector is located on the side of the first fixing member closer to the second fixing member, the first direction being parallel to the test bench surface and perpendicular to the sliding direction of the second fixing member.

3. The testing equipment according to claim 2, characterized in that, The transition connector includes: The first connecting part includes a first connecting plate, and the first connecting plate has a connecting surface that connects to the loading pressure plate surface; The second connecting part is fixedly connected to the first connecting part, and a connecting rod is provided on the side of the second connecting part away from the first connecting part, the connecting rod being able to abut against the second fixing member.

4. The testing equipment according to claim 3, characterized in that, The connecting rod is provided with a first limiting block and a second limiting block at both ends; The second fixing member has an installation interface; as the loading pressure plate approaches the second fixing member, the installation interface can abut against the connecting rod and engage between the first limiting block and the second limiting block.

5. The testing equipment according to claim 1, characterized in that, The top of the test bench is provided with multiple fixing slots, and the bottom width of the fixing slot is greater than the opening width of the fixing slot, so that the fixing slot can be used to detachably connect the first fixing member and the second fixing member.

6. The testing equipment according to claim 1, characterized in that, The first fastener includes: The first fixed seat is fixedly connected to the test bench and has a first fixed part, which is used to connect the first bushing connection end of the swing arm; The second fixing seat is fixedly connected to the test bench and has a second fixing part, which is used to connect the second bushing connection end of the swing arm.

7. The testing apparatus according to any one of claims 1-6, characterized in that, The second fastener includes: The sliding seat is slidably connected to the test bench; The connecting bracket is detachably connected to the sliding seat and has a third connecting part for connecting the ball joint end of the swing arm.

8. The testing equipment according to claim 7, characterized in that, The sliding seat and the test bench are slidably connected by a sliding structure, the sliding structure comprising: A slide rail is provided on the test bench and extends along the sliding direction of the second fixing member; A groove is formed at the bottom of the sliding seat and can slide in conjunction with the slide rail.

9. The testing equipment according to claim 8, characterized in that, The sliding structure includes multiple slide rails arranged side by side, and the multiple slide rails are detachably connected to the test bench through the same slide rail fixing seat.

10. The testing equipment according to claim 8, characterized in that, A limiting structure is provided between the slide groove and the slide rail. The limiting structure is used to restrict the sliding seat from moving in a direction perpendicular to the test bench surface. The limiting structure includes a limiting protrusion and a limiting groove. The limiting protrusion is located on the side wall of the slide rail and extends along the length of the slide rail; the limiting groove is located on the side wall of the slide groove and slides in cooperation with the limiting protrusion; or the limiting groove is located on the side wall of the slide rail and extends along the length of the slide rail; the limiting protrusion is located on the side wall of the slide groove and slides in cooperation with the limiting groove.

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