Automobile parts impact testing machine based on adaptive damping control and testing method

Abstract

The application discloses an automobile part impact testing machine based on adaptive damping control and a testing method, relates to the related technical field of automobile parts, and through the unique connector design and the cooperation of the bidirectional screw rod and the internal thread cylinder, the position of the positioning column can be flexibly adjusted, and because the end of the positioning column is designed in a conical shape, the end can be inserted into the docking hole, and the shape of the end can ensure that the positioning column can smoothly limit and clamp and fix different-diameter docking holes, that is, different shock absorbers can be fixed without using different types of plugs, connection difficulties caused by size differences of the docking holes are avoided, the shock absorbers are fixed in a clamping mode, the fixity of the shock absorbers in the test process is ensured, the shaking of the shock absorbers in the test process is reduced, the stability of the fixation is further improved, the test result is more accurate and reliable, and test errors and equipment damage caused by the shaking of the shock absorbers are effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to an automotive parts impact testing machine and testing method based on adaptive damping control. Background Technology

[0002] In today's booming automotive industry, the safety, reliability, and durability of automobiles have become the focus of consumer attention. As the cornerstone of overall vehicle performance, the quality of automotive components directly determines the overall quality of the vehicle. To ensure stable operation under various complex conditions, rigorous impact testing of automotive components is crucial. By simulating various impact scenarios that components may encounter during vehicle operation, potential problems can be identified in advance, component design can be optimized, and thus the safety and reliability of the entire vehicle can be improved, meeting increasingly stringent industry standards and consumer expectations, and enhancing the competitiveness of automotive products in the market. Among these, automotive components using adaptive damping control mainly include shock absorbers, suspension systems, and stabilizer bars. Adaptive damping shock absorbers are a typical component applying adaptive damping control technology. They can change the damping force in real time based on information such as vehicle speed, road conditions, and steering angle. When driving on bumpy roads, the system increases the damping force to reduce body bounce and improve vehicle handling stability; when driving at high speeds on flat roads, the damping force is appropriately reduced to improve ride comfort.

[0003] Currently, when testing adaptive damping shock absorbers in automobiles, an adaptive damping control automotive component impact testing machine is used. It mainly consists of a fixed connecting seat, an adjustable seat that can be raised and lowered, a support column, a telescopic rod, a top docking seat, a bottom docking seat, a pin, and a driver. The connecting seat is fixedly connected to the worktable, the support column is fixedly connected to the connecting seat, and the adjustable seat is slidably mounted on the support column. The side wall of the adjustable seat is fixedly connected to the end of the telescopic rod. The telescopic rod is used to flexibly adjust the height of the adjustable seat to ensure that the docking seat can be smoothly connected to both ends of the shock absorber. The top docking seat and the bottom docking seat are connected to both ends of the shock absorber through pins, and the driver is connected to the bottom docking seat.

[0004] In practical use, firstly, one end of the shock absorber needs to be aligned with a set of mating seats. Then, select a suitable pin and pass it through the through hole on the mating seat and the through hole on the shock absorber to connect one end of the shock absorber to the set of mating seats. Then, use a nut or other tools to lock the set of pins. Next, start the telescopic rod to adjust the position of the top mating seat to ensure that the gap between the two sets of mating seats corresponds to the length of the shock absorber. After adjusting to the appropriate position, connect the other end of the shock absorber to the corresponding mating seat. Then, start the drive. The drive will drive the bottom mating seat to move up and down, and through the bottom mating seat, it will drive the shock absorber to move in and out of the device. This is used to conduct an impact test to evaluate the performance of the shock absorber, optimize the design, and test reliability and durability.

[0005] However, the aforementioned adaptive damping control automotive component impact testing machine requires the use of pins or bolts (hereinafter collectively referred to as pins) to connect the shock absorber's mating hole to the corresponding mating seat during the connection process with the shock absorber. The diameter of the pins is generally fixed. When encountering a mating hole diameter that is too small, it is necessary to design or purchase a corresponding pin model. This undoubtedly increases the manufacturer's testing costs. Furthermore, the diameter of the through hole on the mating seat used for the pin to pass through is generally fixed, causing manufacturers to typically use only one set of pin models to limit the shock absorber. This makes impact testing more difficult. During the test, the shock absorber and the pin will wobble up and down, which will undoubtedly affect the test results. At the same time, because the thickness of the mating holes at both ends of different models of shock absorbers will be different, and the model of the mating seat is generally limited, the end of the shock absorber will not be in direct contact with the inner wall of the mating seat. This will undoubtedly further increase the probability of the shock absorber wobbling during the test. If the wobbling amplitude of the shock absorber is too large, it is very easy to cause the shock absorber to be damaged unexpectedly during the test. Therefore, it is urgent to improve the existing adaptive damping control automotive component impact testing machine. Summary of the Invention

[0006] The purpose of this invention is to provide an impact testing machine and testing method for automotive parts based on adaptive damping control, so as to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] The automotive component impact testing machine based on adaptive damping control provided by the present invention includes a body consisting of a top docking seat, a bottom docking seat and a lifting drive. Connectors are installed on both the top docking seat and the bottom docking seat for connecting the top docking seat and the bottom docking seat to both ends of a shock absorber, and both ends of the shock absorber are provided with docking holes.

[0009] The connector includes:

[0010] The mounting base has two sets of positioning plates symmetrically installed at the ends of the top and bottom docking seats. Limiting posts are slidably installed on the positioning plates, and positioning posts that cooperate with docking holes are installed at the ends of the limiting posts. The ends of the positioning posts are tapered to ensure that the ends of the positioning posts can smoothly enter the docking holes to limit the position of the shock absorber.

[0011] The linkage plate is slidably mounted on the outer wall of the positioning plate and fixedly connected to the positioning column, and an internal threaded cylinder is installed at the end of the linkage plate.

[0012] A bidirectional screw, which is mounted on a mounting base and connected to an internally threaded cylinder;

[0013] The limiting post is equipped with a pre-limiting device that mates with the docking hole, which is used to pre-fix the shock absorber and facilitate the connection of both ends of the shock absorber to the two sets of connectors.

[0014] As a preferred embodiment of the present invention, the body further includes:

[0015] A fixed base is installed on the workbench, and a support column is fixedly installed on the top of the fixed base;

[0016] The movable seat is slidably mounted on the support column, and a telescopic rod connected to the fixed seat is installed on the side wall of the movable seat;

[0017] The lifting drive is located in the middle of the fixed seat and connected to the bottom docking seat; the top docking seat is installed at the bottom of the movable seat.

[0018] As a preferred embodiment of the present invention, the connector further includes:

[0019] The slide groove is formed on the outer wall of the positioning plate, and the slide groove is slidably connected to the corresponding limit post, linkage plate and internal threaded cylinder;

[0020] The slide rail is located on the end face of the mounting base and is slidably connected to the end of the linkage plate.

[0021] The support shaft seat is fixedly mounted on the mounting base and is rotatably connected to the bidirectional screw.

[0022] Handles are installed at both ends of the double-ended screw.

[0023] As a preferred embodiment of the present invention, the diameter of the limiting post is greater than the thickness of the linkage plate and less than the diameter of the positioning post, and the length of the limiting post is greater than the length of the slide rail.

[0024] As a preferred embodiment of the present invention, the mounting base consists of a support base and a rotating base;

[0025] The support base is located at the bottom of the rotating base, and the support base and the rotating base are rotatably connected. A lifting plate is slidably installed on the support base, and a positioning protrusion is installed on the top of the lifting plate. The rotating base is provided with a positioning groove corresponding to the positioning protrusion, which is used to fix the angle of the rotating base.

[0026] The rotating seat has a lifting groove corresponding to the lifting plate, and multiple sets of T-shaped rods that are slidably connected to the lifting plate are installed in the lifting groove. In addition, multiple sets of return springs that are connected to the lifting plate are installed in the lifting groove.

[0027] As a preferred embodiment of the present invention, the support base and the rotating base are respectively shaped like a disc and a strip, and the outer walls at both ends of the rotating base are designed with arc-shaped surfaces corresponding to the outer walls of the rotating base.

[0028] Two sets of positioning protrusions are provided on the lifting plate, and the two sets of positioning protrusions are staggered by 90°. One set of positioning protrusions is located in the positioning groove, and the other set is located on one side of the rotating seat and is attached to the side wall of the rotating seat. The end corners of the positioning protrusions and the opening corners of the positioning groove are all designed with beveled angles.

[0029] As a preferred embodiment of the present invention, the pre-limiting device includes:

[0030] A polygonal limiting post is slidably installed inside the end of a positioning post. It is used to enter the docking hole first to limit the shock absorber. A tie rod that is slidably connected to the limiting post is installed at the end of the polygonal limiting post.

[0031] The resetter, which is located inside the limiting post and connected to the pull rod, is used to provide the pull rod with the power to slide into the mating hole.

[0032] As a preferred embodiment of the present invention, the width of the polygonal limiting post is smaller than the diameter of the docking hole, and the end of the positioning post is provided with a sliding hole corresponding to the polygonal limiting post.

[0033] As a preferred embodiment of the present invention, the resetter includes a circular plate fixedly mounted on the pull rod, and the limiting post has an adjustment groove corresponding to the circular plate, and a resistance spring connected to the circular plate is installed in the adjustment groove.

[0034] The testing method for automotive component impact testing machines based on adaptive damping control includes the following steps:

[0035] Step 1: First, activate the telescopic rod to adjust the distance between the top and bottom docking seats;

[0036] Step 2: After the initial adjustment is completed, pull the lever outward to adjust the spacing between the polygonal limit posts, and then connect the docking hole at one end of the shock absorber to the polygonal limit post.

[0037] Step 3: Next, release the restriction on the pull rod, which will automatically reset under the action of the resetter. At this time, the ends of the two sets of polygonal limit posts will enter the docking holes to pre-limit them. Then, follow the operation in Step 2 to connect the other end of the shock absorber to another set of pre-limiters.

[0038] Step 4: After both ends of the shock absorber are pre-fixed, turn the handle to make the bidirectional screw start to rotate. The linkage plate, driven by the internal threaded cylinder, drives the limiting pin and positioning pin to move towards the docking hole until the ends of the two sets of positioning pins enter the docking hole and are in contact with the opening of the docking hole. At this time, the end of the shock absorber will be clamped and fixed.

[0039] Step 5: Next, start the lifting drive to make the bottom docking seat begin to lift and lower for testing;

[0040] Step Six: After the test is completed, separate the shock absorber from the connector according to the corresponding operations in Steps One to Five.

[0041] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0042] 1. This automotive component impact testing machine based on adaptive damping control, through a unique connector design and the cooperation of a bidirectional screw and an internal threaded cylinder, allows for flexible adjustment of the positioning pin position. The tapered design of the positioning pin end facilitates insertion into the mating hole, and its shape ensures smooth restraint and clamping of mating holes of different diameters. This allows for the fixing of different shock absorbers without the need for different types of pins, avoiding connection difficulties caused by differences in mating hole sizes. Furthermore, the clamping method ensures the stability of the shock absorber during testing, reducing its sway. The tapered design of the positioning pin end and its tight fit with the mating hole further improve the stability of the fixation, ensuring more accurate and reliable test results and effectively avoiding test errors and equipment damage caused by shock absorber sway.

[0043] 2. This automotive component impact testing machine based on adaptive damping control uses a pre-limiting device to pre-position the shock absorber before final fixing. This eliminates the need for the user to hold the shock absorber continuously during the connection process with the docking seat, reducing the time the user spends holding the shock absorber during installation and thus reducing the physical exertion on the workers. Furthermore, the pre-limiting device prevents the shock absorber from falling off directly after the clamping and fixing are released, ensuring that even after separation from the positioning post, the shock absorber will not fall directly during disassembly, reducing the probability of damage. Attached Figure Description

[0044] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a schematic diagram of the connector described in this invention;

[0048] Figure 3 This is the present invention. Figure 2 Schematic diagram of the structure of the components after the explosion;

[0049] Figure 4 This is a partially cut-out structural diagram of the connector and shock absorber described in this invention.

[0050] Figure 5 This is a schematic diagram of the structure of the pre-limiting device of the present invention when the shock absorber is in a restricted state;

[0051] Figure 6 This is a structural schematic diagram of the connection state between the positioning post and the docking hole of the present invention;

[0052] Figure 7 This is a schematic diagram of the mounting base in the second embodiment of the present invention;

[0053] Figure 8 This is a structural schematic diagram of another state of the mounting base in the second embodiment of the present invention;

[0054] Figure 9 This is a schematic diagram of the structure of the rotating seat in the second embodiment of the present invention after being cut open;

[0055] In the picture:

[0056] 1. Body; 10. Fixed base; 11. Support column; 12. Movable base; 13. Telescopic rod; 14. Top docking seat; 15. Bottom docking seat; 16. Lifting drive;

[0057] 2. Shock absorber; 20. Connecting hole;

[0058] 3. Connector; 30. Mounting base; 301. Support base; 302. Rotating base; 303. Lifting plate; 304. Positioning protrusion; 3040. Positioning groove; 305. Lifting groove; 306. T-shaped rod; 307. Return spring; 31. Positioning plate; 310. Slide groove; 32. Limiting post; 33. Positioning post; 34. Linkage plate; 340. Slide rail; 35. Internal threaded cylinder; 36. Support shaft seat; 37. Double-acting screw; 370. Handle;

[0059] 4. Pre-limiting device; 40. Polygonal limiting post; 401. Sliding hole; 41. Pull rod; 42. Resetter; 420. Circular plate; 421. Adjusting groove; 422. Resistance spring. Detailed Implementation

[0060] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0061] This invention aims to solve the problems of inconvenient connection between existing automotive component impact testing machines and shock absorbers, and poor testing stability, and provides an impact testing machine and testing method that can efficiently and accurately connect shock absorbers and provide more reliable testing results.

[0062] Example 1

[0063] Please see Figures 1-6 This embodiment discloses an automotive component impact testing machine based on adaptive damping control, which mainly consists of a body 1, a shock absorber 2, a connector 3, and a pre-limiter 4.

[0064] Among them, the body 1 serves as the basic support structure and is connected to the shock absorber 2 through the top docking seat 14 and the bottom docking seat 15; the connector 3 is installed on the top docking seat 14 and the bottom docking seat 15 to achieve a stable connection with both ends of the shock absorber 2; the pre-limiter 4 is installed on the limit post 32 to assist the connector 3 in quickly and accurately positioning and fixing the shock absorber 2.

[0065] Specifically, in this embodiment, the body 1 includes a fixed base 10, a support column 11, a movable base 12, a telescopic rod 13, a top docking base 14, a bottom docking base 15, and a lifting drive 16.

[0066] The fixed base 10 is installed on the workbench, providing stable support for the entire testing machine and ensuring that the equipment will not shake or shift during the test. The support column 11 is fixed to the top of the fixed base 10, and the movable base 12 is slidably installed on the support column 11. The two work together to provide stable lifting guidance for the top docking seat 14, ensuring the accuracy of the top docking seat 14 during movement. The telescopic rod 13 connects the movable base 12 and the fixed base 10. By telescopic movement, the height of the movable base 12 is adjusted, thereby changing the distance between the top docking seat 14 and the bottom docking seat 15 to accommodate shock absorbers 2 of different lengths and improve the versatility of the testing machine. The lifting drive 16 is located in the middle of the fixed base 10 and connected to the bottom docking seat 15. It is used to drive the bottom docking seat 15 to move up and down, simulating the impact on the shock absorber 2 during car driving, and providing power for the impact test.

[0067] In this embodiment, the connector 3 includes a mounting base 30, a positioning plate 31, a limiting post 32, a positioning post 33, a linkage plate 34, an internal threaded cylinder 35, a support shaft seat 36, a bidirectional screw 37, and a handle 370.

[0068] Among them, the mounting base 30 is installed at the ends of the top docking base 14 and the bottom docking base 15 to provide a mounting base for other components; the positioning plate 31 is symmetrically installed at the ends of the mounting base 30, and the limiting post 32 is slidably installed on the positioning plate 31. The positioning post 33 installed at its end is used to cooperate with the docking hole 20 of the shock absorber 2 to position and fix the shock absorber 2.

[0069] Meanwhile, the end of the positioning post 33 is tapered, which facilitates insertion into the docking hole 20 and improves the convenience and accuracy of installation. The linkage plate 34 is slidably installed on the outer wall of the positioning plate 31 and fixedly connected to the positioning post 33. The internal threaded cylinder 35 is installed at the end of the linkage plate 34 and connected to the bidirectional screw 37. When the bidirectional screw 37 rotates, it drives the linkage plate 34 to move through the internal threaded cylinder 35, thereby realizing the horizontal movement of the positioning post 33 and clamping or releasing the shock absorber 2. This design makes the clamping process more stable and precise.

[0070] Secondly, the support shaft seat 36 in connector 3 is fixedly installed on the mounting base 30 and rotatably connected to the bidirectional screw 37, providing stable support for the bidirectional screw 37, ensuring the stability of the bidirectional screw 37 during rotation, and thus ensuring the movement accuracy of the positioning post 33.

[0071] Meanwhile, handles 370 are installed at both ends of the bidirectional screw 37, making it convenient for operators to manually rotate the bidirectional screw 37, which is simple and labor-saving. The sliding groove 310 on the outer wall of the positioning plate 31 is slidably connected to the limiting post 32, the linkage plate 34 and the internal threaded cylinder 35, providing guidance for the sliding of these components and ensuring their stability and accuracy during movement. Furthermore, the slide rail 340 on the end face of the mounting base 30 is slidably connected to the end of the linkage plate 34, further enhancing the stability of the movement of the linkage plate 34 and improving the overall working reliability of the connector 3.

[0072] In this embodiment, the pre-limiter 4 includes a polygonal limiting post 40, a pull rod 41, and a resetter 42;

[0073] The polygonal limiting post 40 is slidably installed inside the end of the positioning post 33. Its width is smaller than the diameter of the docking hole 20, which facilitates the first entry into the docking hole 20 to limit the shock absorber 2. When installing the shock absorber 2, pulling the pull rod 41 outward can adjust the spacing between the polygonal limiting posts 40, so that the docking hole 20 of the shock absorber 2 can be smoothly fitted onto the polygonal limiting post 40. After releasing the pull rod 41, the reset device 42 provides the pull rod 41 with the power to slide into the docking hole 20, so that the end of the polygonal limiting post 40 enters the docking hole 20 to pre-limit the shock absorber 2, which facilitates the accurate installation of the subsequent positioning post 33 and improves the efficiency and accuracy of the installation of the shock absorber 2.

[0074] Specifically, the resetter 42 includes a circular plate 420 fixedly mounted on the pull rod 41, and an adjustment groove 421 opened in the limiting post 32 corresponds to the circular plate 420. The resistance spring 422 installed in the adjustment groove 421 is connected to the circular plate 420. The resistance spring 422 provides a stable reset force for the pull rod 41, ensuring that the polygonal limiting post 40 can be accurately reset when it is not subjected to external force.

[0075] This embodiment also discloses a testing method for an automotive component impact testing machine based on adaptive damping control, including the following steps:

[0076] Step 1: Adjust the spacing between the mating seats

[0077] First, activate the telescopic rod 13 to allow the movable seat 12 to slide on the support column 11; adjust the distance between the top docking seat 14 and the bottom docking seat 15 according to the length of the shock absorber 2 to be tested, in preparation for the subsequent installation of the shock absorber 2.

[0078] Step 2: Adjust the polygonal limit post 40 and initially connect the shock absorber 2.

[0079] By pulling the lever 41 outward, the user can slide the polygonal limiting post 40 inward toward the end of the positioning post 33, adjust the distance between the two sets of polygonal limiting posts 40, and ensure that the end of the shock absorber 2 can move smoothly between the two sets of polygonal limiting posts 40.

[0080] After one end of the shock absorber 2 moves between the polygonal limiting posts 40, the shock absorber 2 is initially connected to the end of a set of polygonal limiting posts 40 through the docking hole 20.

[0081] Step 3: Pre-limit shock absorber 2 at both ends

[0082] Once the docking hole 20 aligns with the polygonal limiting post 40, the restriction on the pull rod 41 can be released, and the resetter 42 will begin to function, allowing the ends of the two sets of polygonal limiting posts 40 to enter the docking hole 20 and pre-limit the shock absorber 2.

[0083] Following the same operating method, connect the other end of the shock absorber 2 to another set of pre-limiters 4 so that both ends of the shock absorber 2 are initially fixed.

[0084] Step 4: Fix the shock absorber 2

[0085] After both ends of the shock absorber 2 are pre-fixed, the handles 370 at both ends of the bidirectional screw 37 can be rotated, causing the bidirectional screw 37 to rotate on the support shaft seat 36. When the bidirectional screw 37 rotates, it drives the linkage plate 34 to move, and the linkage plate 34 drives the limiting post 32 and the positioning post 33 to move towards the docking hole 20. Until the ends of the two sets of positioning posts 33 enter the docking hole 20 and are in contact with the opening of the docking hole 20, the end of the shock absorber 2 is firmly clamped and fixed.

[0086] Step 5: Conduct impact tests

[0087] After both ends of the shock absorber 2 are fixed, the lifting drive 16 can be started. The lifting drive 16 pushes the bottom docking seat 15 to move up and down. By simulating the impact scenarios that the shock absorber 2 may suffer during the car's driving process, the shock absorber 2 is subjected to impact test, thereby evaluating the performance of the shock absorber 2, optimizing the design, and testing its reliability and durability.

[0088] Step Six: Separate Shock Absorber 2 from Connector 3

[0089] After the test is completed, the handle 370 of the bidirectional screw 37 is rotated in the opposite direction to reverse the bidirectional screw 37; the bidirectional screw 37 drives the linkage plate 34 to move in the opposite direction, thereby causing the positioning pin 33 to retract from the mating hole 20.

[0090] Finally, the pull rod 41 is pulled outward, causing the polygonal limiting post 40 to be pulled out of the docking hole 20.

[0091] Following the above steps, disconnect both ends of the shock absorber 2 from the connector 3 in sequence to complete the entire test process and prepare for the next test.

[0092] Example 2

[0093] Please see Figures 1-9 This embodiment discloses an automotive parts impact testing machine based on adaptive damping control. The technical solution and parts of this embodiment are basically the same as those of Embodiment 1. The technically similar parts will not be described again here. The difference is that the mounting base 30 in this embodiment is composed of a support base 301 and a rotating base 302.

[0094] The support base 301 and the rotating base 302 are rotatably connected, and the lifting plate 303 is slidably installed on the support base 301. The positioning protrusion 304 on its top cooperates with the positioning groove 3040 on the rotating base 302 to fix the angle of the rotating base 302.

[0095] When the mating holes 20 at both ends of the shock absorber 2 are offset by 90°, the angle of the connector 3 is adjusted to accommodate different shock absorbers 2.

[0096] In specific operation, the position of the lifting plate 303 is adjusted by pressing down the positioning protrusion 304. As the lifting plate 303 descends, another set of positioning protrusions 304 will disengage from the positioning groove 3040, thereby releasing the restriction of the rotating seat 302. The angle of the rotating seat 302 can then be adjusted. When the rotating seat 302 rotates 90°, the positioning protrusions 304 that were originally located on one side of the rotating seat 302 will correspond to the position of the positioning groove 3040. At this time, the positioning protrusions 304 will enter the positioning groove 3040 under the action of the return spring 307, fixing the rotating seat 302 and ensuring that the connector 3 can work stably at different angles.

[0097] In this embodiment, the T-shaped rod 306 installed in the lifting groove 305 is slidably connected to the lifting plate 303, which serves as a guide to prevent the lifting plate 303 from shifting during the lifting process; at the same time, the return spring 307 connects the lifting plate 303 and the lifting groove 305, and after the angle is adjusted, it can help the lifting plate 303 to quickly return to its original position, so that the positioning protrusion 304 can accurately fall into the positioning groove 3040, thereby improving the convenience and efficiency of operation.

[0098] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automotive component impact testing machine based on adaptive damping control, comprising a body (1) consisting of a top docking seat (14), a bottom docking seat (15), and a lifting drive (16), characterized in that: The top docking seat (14) and the bottom docking seat (15) are each equipped with a connector (3) for connecting the top docking seat (14) and the bottom docking seat (15) to both ends of the shock absorber (2), and both ends of the shock absorber (2) are provided with docking holes (20). The connector (3) includes: Mounting base (30) is installed at the ends of the top docking base (14) and the bottom docking base (15), and two sets of positioning plates (31) are symmetrically installed at the ends of the mounting base (30). Limiting posts (32) are slidably installed on the positioning plates (31), and positioning posts (33) that cooperate with the docking holes (20) are installed at the ends of the limiting posts (32). The ends of the positioning posts (33) are tapered to ensure that the ends of the positioning posts (33) can smoothly enter the docking holes (20) to limit the position of the shock absorber (2). The linkage plate (34) is slidably installed on the outer wall of the positioning plate (31) and fixedly connected to the positioning column (33), and an internal threaded cylinder (35) is installed at the end of the linkage plate (34). A double-ended screw (37) is mounted on a mounting base (30) and connected to an internally threaded cylinder (35); The limiting post (32) is equipped with a pre-limiting device (4) that mates with the docking hole (20) for pre-fixing the shock absorber (2) and facilitating the connection of both ends of the shock absorber (2) to the two sets of connectors (3); The mounting base (30) consists of a support base (301) and a rotating base (302); The support base (301) is located at the bottom of the rotating base (302), and the support base (301) and the rotating base (302) are rotatably connected. A lifting plate (303) is slidably installed on the support base (301), and a positioning protrusion (304) is installed on the top of the lifting plate (303). A positioning groove (3040) corresponding to the positioning protrusion (304) is opened on the rotating base (302) for fixing the angle of the rotating base (302). The rotating seat (302) is provided with a lifting groove (305) corresponding to the lifting plate (303), and multiple sets of T-shaped rods (306) slidably connected to the lifting plate (303) are installed in the lifting groove (305), and multiple sets of return springs (307) connected to the lifting plate (303) are installed in the lifting groove (305). The support base (301) and the rotating base (302) are respectively round and long, and the outer walls of both ends of the rotating base (302) are designed with arc-shaped surfaces corresponding to the outer walls of the rotating base (302); Two sets of positioning protrusions (304) are provided on the lifting plate (303), and the two sets of positioning protrusions (304) are staggered by 90°. One set of positioning protrusions (304) is located in the positioning groove (3040), and the other set is located on one side of the rotating seat (302) and is attached to the side wall of the rotating seat (302). The end corners of the positioning protrusions (304) and the opening corners of the positioning groove (3040) are all designed with bevel angles.

2. The automotive component impact testing machine based on adaptive damping control according to claim 1, characterized in that: The body (1) also includes: A fixed base (10) is installed on the workbench, and a support column (11) is fixedly installed on the top of the fixed base (10). The movable seat (12) is slidably mounted on the support column (11), and the side wall of the movable seat (12) is equipped with a telescopic rod (13) connected to the fixed seat (10). The lifting drive (16) is located in the middle of the fixed seat (10) and connected to the bottom docking seat (15); the top docking seat (14) is installed at the bottom of the movable seat (12).

3. The automotive component impact testing machine based on adaptive damping control according to claim 2, characterized in that: The connector (3) further includes: The slide (310) is formed on the outer wall of the positioning plate (31), and the slide (310) is slidably connected to the corresponding limiting post (32), linkage plate (34) and internal threaded cylinder (35); The slide rail (340) is located on the end face of the mounting base (30) and is slidably connected to the end of the linkage plate (34); The support shaft seat (36) is fixedly mounted on the mounting base (30), and the support shaft seat (36) is rotatably connected to the double-acting screw (37); The handle (370) is installed at both ends of the double-ended screw (37).

4. The automotive component impact testing machine based on adaptive damping control according to claim 3, characterized in that: The diameter of the limiting post (32) is greater than the thickness of the linkage plate (34) and less than the diameter of the positioning post (33), and the length of the limiting post (32) is greater than the length of the slide rail (340).

5. The automotive component impact testing machine based on adaptive damping control according to claim 4, characterized in that: The pre-limiting device (4) includes: A polygonal limiting post (40) is slidably installed inside the end of the positioning post (33) to be the first to enter the docking hole (20) to limit the shock absorber (2), and a pull rod (41) slidably connected to the limiting post (32) is installed at the end of the polygonal limiting post (40). The resetter (42), which is located inside the limiting post (32) and connected to the pull rod (41), is used to provide the pull rod (41) with the power to slide into the mating hole (20).

6. The automotive component impact testing machine based on adaptive damping control according to claim 5, characterized in that: The width of the polygonal limiting post (40) is smaller than the diameter of the docking hole (20), and the end of the positioning post (33) is provided with a sliding hole (401) corresponding to the polygonal limiting post (40).

7. The automotive component impact testing machine based on adaptive damping control according to claim 6, characterized in that: The resetter (42) includes a circular plate (420) fixedly installed on the pull rod (41), and the limiting post (32) has an adjustment groove (421) corresponding to the circular plate (420), and a resistance spring (422) connected to the circular plate (420) is installed in the adjustment groove (421).

8. A test method for an automotive component impact testing machine based on adaptive damping control, characterized in that... The method of using the automotive component impact testing machine based on adaptive damping control as described in claim 7 includes the following steps: Step 1: First, start the telescopic rod (13) to adjust the distance between the top docking seat (14) and the bottom docking seat (15); Step 2: After the initial adjustment is completed, pull the lever (41) outward to adjust the spacing between the polygonal limit posts (40), and then connect the docking hole (20) at one end of the shock absorber (2) to the polygonal limit post (40); Step 3: Next, release the restriction on the pull rod (41), which will automatically reset under the action of the resetter (42). At this time, the ends of the two sets of polygonal limit posts (40) will enter the docking hole (20) to pre-limit them. Then, follow the operation of step 2 to connect the other end of the shock absorber (2) to another set of pre-limiters (4). Step 4: After both ends of the shock absorber (2) are pre-fixed, turn the handle (370) to make the bidirectional screw (37) start to rotate. The linkage plate (34) drives the limiting pin (32) and the positioning pin (33) to move towards the docking hole (20) under the drive of the internal threaded cylinder (35). When the ends of the two sets of positioning pins (33) enter the docking hole (20) and are in contact with the opening of the docking hole (20), the end of the shock absorber (2) will be clamped and fixed. Step 5: Then, start the lifting drive (16) to make the bottom docking seat (15) start lifting movement for testing; Step 6: After the test is completed, separate the shock absorber (2) from the connector (3) according to the corresponding operations in Step 1 to Step 5.

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