A dismounting and positioning mechanism and method for a vehicle shock absorber

Abstract

This invention proposes a positioning mechanism and method for disassembling and assembling automotive shock absorbers, including a wheel hub simulation positioning component, a shock absorber simulation positioning component, and a connecting rod. The wheel hub simulation positioning component includes a positioning plate and a wheel center positioning rod. The positioning plate is used to connect to the surface of the wheel hub, and the wheel center positioning rod is used to position the center of the wheel hub. The shock absorber simulation positioning component includes a mounting plate and a positioning simulation device. The positioning simulation device is mounted on the mounting plate and is used to simulate the positioning parameters of the shock absorber relative to the wheel hub. The two ends of the connecting rod are respectively connected to the wheel hub simulation positioning component and the shock absorber simulation positioning component. This invention can simulate the spatial position of the shock absorber relative to the wheel hub before disassembly and assembly, and determine the relevant positioning parameters. During shock absorber installation, the relative position of the shock absorber and the wheel hub can be restored through the shock absorber simulation positioning component, thereby ensuring the accuracy of the wheel positioning parameters, eliminating the need for re-aligning four wheels, and reducing the work of shock absorber adjustment and matching.

Description

Technical Field

[0001] This invention relates to the field of automotive shock absorber technology, and in particular to an automotive shock absorber disassembly and positioning mechanism and positioning method. Background Technology

[0002] Automotive shock absorbers are designed to rapidly dampen vibrations from the vehicle frame and body, improving ride smoothness and comfort. They are typically installed in automotive suspension systems, with double-acting telescopic shock absorbers being the most widely used. These shock absorbers are primarily mounted on the suspension to dampen vibrations. Suspension shock absorbers can now also incorporate wheel alignment functionality. For example, Chinese Patent CN216636064U discloses an automotive suspension shock absorber assembly with wheel alignment capabilities. This assembly features a structural design that ensures stable wheel alignment during use, providing a more comprehensive guarantee for wheel alignment performance.

[0003] However, during the matching of shock absorbers and the adjustment of related elastic elements on the car suspension, it is inevitable to repeatedly disassemble and assemble the shock absorbers, shock absorber connecting brackets, and other positioning components. The disassembly and assembly of these structures will inevitably lead to changes in wheel alignment parameters.

[0004] In existing methods, after disassembling and installing shock absorbers, a four-wheel alignment is required to measure and adjust the alignment parameters to bring the vehicle back to its initial design parameters. However, for shock absorber matching and tuning, using a four-wheel alignment machine to correct and adjust parameters obviously consumes a significant amount of time in these preparatory tasks, affecting the progress of the tuning process. Surveys show that in most automotive proving grounds in China that can be used for shock absorber matching and tuning, testing equipment like four-wheel alignment machines experiences high usage loads and complex application procedures, further increasing the difficulty of the work. Furthermore, to some extent, excessively long intervals can affect the tuning engineer's memory of the previous wheel alignment results, increasing human error in the tuning process. Therefore, how to ensure accurate wheel alignment parameters before and after disassembly and installation during chassis tuning of shock absorbers and related elastic components at proving grounds, and improve the efficiency of the tuning process, has become a pressing issue that needs to be addressed in current tuning work. Summary of the Invention

[0005] In view of this, the present invention proposes a positioning mechanism and method for disassembling and assembling automotive shock absorbers. This device can ensure the accuracy of wheel positioning parameters related to the installation position of the shock absorber, reduce the workload of shock absorber adjustment, and improve work efficiency.

[0006] The technical solution of this invention is implemented as follows:

[0007] On one hand, the present invention provides a vehicle shock absorber disassembly and positioning mechanism, including a wheel hub simulation positioning component, a shock absorber simulation positioning component, and a connecting rod; wherein,

[0008] A wheel hub simulation positioning assembly includes a positioning plate and a wheel center positioning rod. The positioning plate is used to connect to the side of the wheel hub away from the shock absorber, and the wheel center positioning rod is set on the positioning plate to position the center of the wheel hub.

[0009] A shock absorber simulation positioning assembly includes a mounting plate and a positioning simulation device, wherein the positioning simulation device is mounted on the mounting plate and is used to simulate the positioning parameters of the shock absorber relative to the wheel hub.

[0010] The connecting rod is horizontally positioned between the wheel hub simulation positioning component and the shock absorber simulation positioning component. One end of the connecting rod is fixedly connected to the positioning plate, and the other end is fixedly connected to the mounting plate.

[0011] Based on the above technical solution, preferably, the positioning disc includes a first disc body and a second disc body. The first disc body is used to connect with the side of the wheel hub away from the shock absorber. The second disc body is fixedly installed on the top surface of the first disc body and is parallel to the first disc body. Two connecting rods are arranged parallel to each other at intervals. One end of the connecting rod is fixedly connected to the second disc body perpendicularly, and the other end of the connecting rod is movably connected to the mounting plate.

[0012] Furthermore, preferably, the first disc body has a disc-shaped structure, and the surface of the first disc body is provided with a plurality of first strip holes. The plurality of first strip holes are arranged at equal intervals around the central axis of the first disc body, and the first strip holes are used to connect with the bolt holes of the wheel hub.

[0013] Furthermore, preferably, a positioning frame is fixedly provided at the center of the side of the first disc body away from the contour, the wheel center positioning rod is slidably provided on the positioning frame, and one end of the wheel center positioning rod faces the center of the first disc body, and a through hole is opened at the center of the first disc body for the wheel center positioning rod to pass through.

[0014] Based on the above technical solution, preferably, the positioning simulation device is located between the mounting plate and the positioning disk, and includes a position simulation component and a degree-of-freedom simulation component. One end of the degree-of-freedom simulation component is movably connected to the mounting plate, and the other end is movably connected to the position simulation component. The position simulation component is used to simulate the spatial position of the shock absorber, and the degree-of-freedom simulation component is used to simulate the spatial degree of freedom of the shock absorber.

[0015] Further, preferably, the position simulation component includes a guide rod, a fixed arm, and a movable arm. The fixed arm has an arc-shaped structure, and there are two fixed arms, which are arranged vertically on the guide rod and can slide along the length of the guide rod. The axis of the fixed arm is parallel to the axis of the guide rod. There are two movable arms, and the two free ends of the fixed arms are respectively hinged to the movable arms. The movable arms have an arc-shaped structure. Both the fixed arm and the movable arm are provided with at least one threaded hole, and a first locking bolt is provided in the threaded hole.

[0016] Furthermore, preferably, the degree-of-freedom simulation component includes a connecting seat, a connecting screw, and a locking nut. The connecting seat is disposed on the side of the mounting plate facing the positioning disk. The connecting seat has a mounting groove with its opening facing the positioning disk. The guide rod is inserted into the mounting groove and rotatably connected to the mounting groove. The connecting seat is provided with a second locking bolt for fixing the guide rod and the connecting seat in a relative position. The mounting plate has a second strip-shaped hole along its length. One end of the connecting screw is fixedly connected to the connecting seat, and the other end passes horizontally through the second strip-shaped hole and is connected to the locking nut.

[0017] Based on the above technical solution, preferably, the surface of the connecting rod is provided with scale lines along its length direction, both ends of the mounting plate are slidably connected to the connecting rod, and the top surface of the mounting plate is provided with a third locking bolt for fixing the mounting plate and the connecting rod in relative position.

[0018] On the other hand, the present invention provides a method for disassembling and positioning an automotive shock absorber, which utilizes the aforementioned automotive shock absorber disassembly and positioning mechanism, and includes the following steps:

[0019] S1. Fix the positioning plate on the side of the wheel hub away from the shock absorber, and ensure that the positioning plate is positioned with the center of the wheel hub, so as to realize the positioning of the shock absorber simulation positioning component and the wheel.

[0020] S2. Connect the shock absorber simulation positioning component and the wheel hub simulation positioning component through a connecting rod to transmit the relevant positioning relationship and provide a positioning reference for the shock absorber simulation positioning component;

[0021] S3. Simulate the relevant positioning parameters of the shock absorber relative to the wheel hub by using the positioning simulation device in conjunction with the mounting plate, and then remove the shock absorber simulation positioning component from the connecting rod.

[0022] S4. Before reinstalling the shock absorber, first install the shock absorber simulation positioning component onto the connecting rod to obtain the simulated positional relationship of the shock absorber relative to the wheel hub simulation positioning component within the spatial range.

[0023] S5. The shock absorber is installed on the vehicle suspension by means of the spatial position relationship between the shock absorber simulation positioning component and the wheel hub simulation positioning component, so as to maintain the consistency of the shock absorber and wheel parameters before and after installation.

[0024] The present invention has the following advantages over the prior art:

[0025] (1) The automobile shock absorber disassembly and positioning mechanism disclosed in this invention sets up a wheel hub simulation positioning component and uses a positioning plate to simulate the wheel hub plane to provide a positioning reference. A connecting rod is used to connect the wheel hub simulation positioning component and the shock absorber simulation positioning component. Specifically, the spatial position of the shock absorber relative to the wheel hub can be simulated by the cooperation of the positioning simulation device and the mounting plate, and the relevant positioning parameters can be determined. The shock absorber simulation positioning component is removed, thereby simulating the relative position of the wheel hub and the shock absorber and saving it. When the shock absorber is installed, the relative position of the shock absorber and the wheel hub can be restored by the shock absorber simulation positioning component, thereby ensuring the accuracy of the wheel positioning parameters. There is no need to re-perform four-wheel alignment, reducing the shock absorber adjustment and matching work.

[0026] (2) By arranging multiple first strip holes at equal intervals around its central axis on the surface of the first disc, bolts can be passed through the first strip holes to connect with the bolt holes on the hub, thereby achieving parallelism between the first disc and the hub surface. The center positioning rod is used to adjust the alignment with the hub, thereby providing feedback adjustment of the first disc plane and providing a positioning reference for the shock absorber simulation positioning component.

[0027] (3) When simulating the position of the shock absorber, the two fixed arms are directly placed on the outside of the shock absorber. By adjusting the length of the first locking bolt, the axis of the fixed arm and the axis of the shock absorber can be made parallel. By making the axis of the fixed arm and the axis of the guide rod parallel, the parameters of the shock absorber can be simulated on the guide rod, realizing the position simulation of the shock absorber in the space. Under the action of the degree of freedom simulation component, the degree of freedom of the guide rod can be adjusted, thereby simulating the degree of freedom of the shock absorber in the space, and then simulating the relevant positioning parameters of the shock absorber relative to the wheel hub.

[0028] (4) By setting the first locking bolt on the fixed arm and the movable arm, it is convenient to separate the fixed arm from the shock absorber after simulating the position parameters of the shock absorber; by setting the second locking bolt and the locking nut, the relative position can be locked after simulating the degree of freedom of the shock absorber; by setting the third locking bolt on the mounting plate, it is convenient to disassemble the shock absorber simulation positioning component on the connecting rod; by setting the scale line on the connecting rod, the relative position between the shock absorber simulation positioning component and the wheel hub simulation positioning component can be quickly obtained when the shock absorber simulation positioning component is installed. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of the automotive shock absorber disassembly and positioning mechanism disclosed in this invention;

[0031] Figure 2 This is a three-dimensional structural schematic diagram of the wheel hub simulation positioning component disclosed in this invention;

[0032] Figure 3 This is a three-dimensional structural diagram of the position simulation component disclosed in this invention;

[0033] Figure 4 This is a three-dimensional structural schematic diagram of the degree-of-freedom simulation component disclosed in this invention;

[0034] Figure label:

[0035] 1. Wheel hub simulation positioning component; 2. Shock absorber simulation positioning component; 3. Connecting rod; 11. Positioning disc; 12. Wheel center positioning rod; 21. Mounting plate; 22. Positioning simulation device; 111. First disc; 112. Second disc; 1111. First slotted hole; 1112. Positioning frame; 1110. Through hole; 23. Position simulation component; 24. Degree of freedom simulation component; 231. Guide rod; 232. Fixed arm; 233. Movable arm; 2300. Threaded hole; 2301. First locking bolt; 241. Connecting seat; 242. Connecting screw; 243. Locking nut; 2411. Mounting groove; 2412. Second locking bolt; 211. Second slotted hole; 31. Scale line; 212. Third locking bolt. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] In automotive suspension structures, the shock absorber mounting bracket is connected to the steering knuckle, with an elongated hole at the connection point. This structure ensures the adjustability of wheel alignment parameters, but it also means that during shock absorber matching and disassembly, the wheel alignment parameters change with each disassembly and reassembly due to the degree of freedom between the steering knuckle and the mounting bracket. This necessitates a complete four-wheel alignment, adjusting the alignment parameters to the design values, significantly increasing the workload of shock absorber matching and compromising the accuracy of the initial wheel alignment parameters.

[0038] To address the aforementioned technical problems, embodiments of the present invention provide an automotive shock absorber disassembly and positioning mechanism, such as... Figure 1 As shown, combined with Figure 2-4The shock absorber disassembly and positioning mechanism disclosed in this embodiment includes a hub simulation positioning component 1, a shock absorber simulation positioning component 2, and a connecting rod 3.

[0039] During the installation and removal of shock absorbers, accurate positioning and consistent installation positions are crucial. Therefore, the selection of the positioning location and device are key considerations. This component must maintain a zero degree of freedom relative to the shock absorber while also providing a suitable connection method and installation space for the positioning device.

[0040] Wheel hubs are an ideal choice to meet these requirements. First, the wheel hub and shock absorber are relatively fixed, and the fixed relationship between the wheel hub and shock absorber can ensure unique wheel positioning parameters such as camber angle, kingpin inclination angle, and caster angle. Second, the wheel hub plane and the bolt holes used to install the tire can provide a good positioning relationship, ensuring the stability of the positioning device installation.

[0041] The wheel hub simulation positioning component 1 disclosed in this embodiment is used to position the wheel hub as a reference benchmark for the positioning of the shock absorber. Specifically, the wheel hub simulation positioning component 1 includes a positioning disk 11 and a wheel center positioning rod 12. The positioning disk 11 is connected to the side of the wheel hub away from the shock absorber. The positioning disk 11 is used to simulate the wheel hub plane and provide a positioning benchmark. The wheel center positioning rod 12 is set on the positioning disk 11 and is used to position the center of the wheel hub. The wheel center positioning rod 12 is used to adjust the alignment with the wheel hub to perform feedback adjustment of the first disk body 111 plane, thereby providing a positioning reference benchmark for the shock absorber simulation positioning component 2.

[0042] The shock absorber simulation positioning component 2 includes a mounting plate 21 and a positioning simulation device 22. The positioning simulation device 22 is mounted on the mounting plate 21 and is used to simulate the positioning parameters of the shock absorber relative to the wheel hub.

[0043] The connecting rod 3 is horizontally positioned between the wheel hub simulation positioning component 1 and the shock absorber simulation positioning component 2. One end of the connecting rod 3 is fixedly connected to the positioning plate 11, and the other end is fixedly connected to the mounting plate 21. This establishes a relative positional connection between the wheel hub simulation positioning component 1 and the shock absorber simulation positioning component 2 through the connecting rod 3.

[0044] By adopting the above technical solution, a wheel hub simulation positioning component 1 is set up, and a positioning plate 11 is used to simulate the wheel hub plane to provide a positioning reference. A connecting rod 3 is used to connect the wheel hub simulation positioning component 1 and the shock absorber simulation positioning component 2. Specifically, the spatial position of the shock absorber relative to the wheel hub can be simulated by the cooperation of the positioning simulation device 22 and the mounting plate 21, and the relevant positioning parameters can be determined. The shock absorber simulation positioning component 2 is then removed, thereby simulating and saving the relative position of the wheel hub and the shock absorber. When the shock absorber is installed, the relative position of the shock absorber and the wheel hub can be restored by the shock absorber simulation positioning component 2, thereby ensuring the accuracy of the wheel positioning parameters and eliminating the need for four-wheel alignment, thus reducing the shock absorber adjustment and matching work.

[0045] In some preferred embodiments, the positioning disc 11 includes a first disc body 111 and a second disc body 112. The first disc body 111 is used to connect with the side of the wheel hub away from the shock absorber. The first disc body 111 is disc-shaped and fits against the outer surface of the wheel hub and is parallel to the surface of the wheel hub. The second disc body 112 is fixedly disposed on the top surface of the first disc body 111 and is parallel to the first disc body 111. Two second connecting rods 3 are arranged parallel to each other at intervals. One end of the connecting rod 3 is vertically fixedly connected to the second disc body 112, and the other end of the connecting rod 3 is movably connected to the mounting plate 21. This realizes the connection of relative positions above the wheel hub through the second disc body 112, the connecting rods 3 and the shock absorber simulation positioning component 2.

[0046] To achieve fixation between the first disc 111 and the wheel hub surface, the surface of the first disc 111 in this embodiment is provided with a plurality of first strip-shaped holes 1111. These holes are arranged at equal intervals around the central axis of the first disc 111 and are used to connect with the bolt holes of the wheel hub. After the first disc 111 is attached to the wheel hub surface, bolts are inserted into the first strip-shaped holes 1111 and connected to the bolt holes of the wheel hub. The first strip-shaped holes 1111 on the first disc 111 can accommodate bolt holes of different pitch circle diameters. In some other embodiments, an integrated wheel nut caliper can be installed on the first disc 111 to connect bolts of different sizes on the wheel hub, thus ensuring that the planes of the first disc 111 and the wheel hub are parallel, providing a positioning reference for the shock absorber simulation positioning assembly 2.

[0047] In some preferred embodiments, a positioning frame 1112 is fixedly disposed at the center of the side of the first disc 111 away from the contour. The wheel center positioning rod 12 is slidably disposed on the positioning frame 1112, with one end of the wheel center positioning rod 12 facing the center of the first disc 111. A through hole 1110 is opened at the center of the first disc 111 for the wheel center positioning rod 12 to pass through. By sliding the wheel center positioning rod 12 relative to the positioning frame 1112, the wheel center positioning rod 12 passes through the through hole 1110 to align with the wheel hub, realizing feedback adjustment of the plane of the first disc 111, thereby providing a positioning reference for the shock absorber simulation positioning assembly 2.

[0048] To more accurately simulate the position of the shock absorber relative to the wheel hub and obtain relevant positioning parameters, the positioning simulation device 22 of this embodiment is set between the mounting plate 21 and the positioning disk 11. It includes a position simulation component 23 and a degree-of-freedom simulation component 24. One end of the degree-of-freedom simulation component 24 is movably connected to the mounting plate 21, and the other end is movably connected to the position simulation component 23. The position simulation component 23 is used to simulate the positioning of the shock absorber, and the degree-of-freedom simulation component 24 is used to adjust the spatial degree-of-freedom parameters of the position simulation component 23 relative to the mounting plate 21.

[0049] In some preferred embodiments, the position simulation component 23 of this embodiment includes a guide rod 231, a fixed arm 232, and a movable arm 233. The fixed arm 232 has an arc-shaped structure, and two fixed arms 232 are provided, positioned vertically on the guide rod 231 and capable of sliding along the length of the guide rod 231. The axis of the fixed arm 232 is parallel to the axis of the guide rod 231. Specifically, the fixed arm 232 can only slide vertically along the guide rod 231 and cannot rotate around it. The two fixed arms 232 are positioned vertically relative to the guide rod 231. Two movable arms 233 are provided, with the two free ends of the fixed arms 232 hinged to the movable arms 233. The movable arms 233 have an arc-shaped structure. Both the fixed arm 232 and the movable arm 233 have at least one threaded hole 2300, and a first locking bolt 2301 is provided within the threaded hole 2300.

[0050] Using the above technical solution, when simulating the position of the shock absorber, the two fixed arms 232 are directly fitted onto the outside of the shock absorber. By adjusting the length of the first locking bolt 2301, the axis of the fixed arm 232 and the axis of the shock absorber can be made parallel. By making the axis of the fixed arm 232 parallel to the axis of the guide rod 231, the parameters of the shock absorber can be simulated onto the guide rod 231. Under the action of the degree of freedom simulation component 24, the degree of freedom of the guide rod 231 can be adjusted, thereby simulating the degree of freedom of the shock absorber in the spatial range, and thus simulating the relevant positioning parameters of the shock absorber relative to the wheel hub.

[0051] It is worth noting that, since the shock absorber is mounted on the suspension with its own shock absorber bracket and other auxiliary components, these components are loaded onto the shock absorber, making the outer diameter of the shock absorber not a regular cylindrical structure. Therefore, by setting the movable arm 233, the movable arm 233 can be rotated relative to the fixed arm 232 to open a larger diameter to surround the shock absorber. The position of the shock absorber within the fixed arm 232 is determined by adjusting the length of the first locking bolt 2301. At the same time, the spatial position of the shock absorber is determined by the positioning points on the fixed arm 232 and the movable arm 233 where at least three of the first locking bolts contact the shock absorber.

[0052] Meanwhile, the upper and lower fixed arms 232 slide up and down along the guide rod 231, which can position the shock absorber at two positions in the length direction and simulate its parameters on the guide rod 231. Then, the degree of freedom simulation component 24 relative to the mounting plate 21 simulates the degree of freedom of the guide rod 231, thereby simulating the degree of freedom of the feedback shock absorber.

[0053] In this embodiment, refer to the appendix Figure 3 As shown, the degree-of-freedom simulation component 24 includes a connecting seat 241, a connecting screw 242, and a locking nut 243. The connecting seat 241 is disposed on the side of the mounting plate 21 facing the positioning disk 11. The connecting seat 241 has a mounting groove 2411, the opening of which faces the positioning disk 11. The guide rod 231 is inserted into the mounting groove 2411 and rotatably connected to it. This configuration allows the guide rod 231 to rotate relative to the axis of the mounting plate 21 within the mounting groove 2411. In this embodiment, the axis of the mounting plate 21 is defined as the Y-axis. The connecting seat 241 is provided with a second locking bolt 2412 for fixing the guide rod 231 to the connecting seat 241 in a relative position. With this setup, once the rotational degree of freedom of the guide rod 231 in the Y-axis direction is simulated, the guide rod 231 can be fixed relative to the connecting seat 241 by means of the second locking bolt 2412, thereby fixing the rotational degree of freedom parameter of the guide rod 231 in the Y-axis direction.

[0054] A second strip-shaped hole 211 is provided on the mounting plate 21 along its length. One end of the connecting screw 242 is fixedly connected to the connecting seat 241, and the other end passes horizontally through the second strip-shaped hole 211 and is connected to the locking nut 243. In this embodiment, the connecting screw 242 and the mounting plate 21 are perpendicular in length, so the direction of the connecting screw 242 is defined as the X-axis direction. With this setting, by rotating the connecting seat 241, the connecting seat 241 drives the connecting screw 242 to rotate around the X-axis direction in the second strip-shaped hole 211, thereby simulating the rotational degree of freedom of the guide rod 231 in the X-axis direction. By using the locking nut 243, the connecting seat 241 can be fixed relative to the mounting plate 21, thereby fixing the rotational degree of freedom parameter of the guide rod 231 in the X-axis direction.

[0055] In this embodiment, by translating the connecting screw 242 along the length direction of the second strip hole 211, the connecting seat 241 can be translated in the Y-axis direction, thereby realizing the translational degree of freedom of the guide rod 231 in the Y-axis direction.

[0056] The aforementioned X and Y axis rotational and translational degrees of freedom, as well as the Y-axis translational degree of freedom parameters, can be directly saved and fixed after being obtained through simulation. When disassembling the shock absorber simulation positioning component 2, the mounting plate 21 is removed from the connecting rod 3. The aforementioned degree of freedom parameters are not destroyed. It is only necessary to ensure the distance between the mounting plate 21 and the positioning plate 11 after the mounting plate 21 is installed on the connecting rod 3. This allows all positioning parameters of the shock absorber simulation positioning component relative to the wheel hub simulation positioning component 1 to be displayed, facilitating precise installation of the shock absorber.

[0057] To record and save the relative positions of the mounting plate 21 and the positioning plate 11, this embodiment has a scale line 31 along the length of the connecting rod 3. The two ends of the mounting plate 21 are slidably connected to the connecting rod 3. A third locking bolt 212 is provided on the top surface of the mounting plate 21 to fix the relative positions of the mounting plate 21 and the connecting rod 3. With this configuration, after simulating the horizontal distance between the shock absorber and the wheel hub, the horizontal distance between the shock absorber and the wheel hub can be recorded by recording the scale line 31 on the connecting rod 3 corresponding to the mounting plate 21. This horizontal distance is defined as the translational degree of freedom in the X-axis direction. It is worth noting that when simulating the positional relationship between the shock absorber and the wheel hub, the mounting plate 21 is first pushed on the connecting rod 3 to position the position simulation component 23 and the shock absorber in a suitable position. At this time, the value of the scale line 31 corresponding to the mounting plate 21 is recorded, and then the third locking bolt 212 is tightened to fix the position of the shock absorber simulation positioning component 2 on the connecting rod 3, thus facilitating the simulation of other parameters.

[0058] This invention also discloses a method for disassembling and locating an automotive shock absorber, which utilizes the aforementioned automotive shock absorber disassembly and positioning mechanism and includes the following steps:

[0059] S1. Fix the positioning plate 11 on the side of the wheel hub away from the shock absorber, and ensure that the positioning plate 11 is positioned with the center of the wheel hub, so as to realize the positioning of the shock absorber simulation positioning component 2 and the wheel.

[0060] S2. Connect the shock absorber simulation positioning component 2 and the wheel hub simulation positioning component 1 through the connecting rod 3 to transmit the relevant positioning relationship and provide a positioning reference for the shock absorber simulation positioning component 2;

[0061] S3. The positioning simulation device 22 and the mounting plate 21 are used to simulate the relevant positioning parameters of the shock absorber relative to the wheel hub, and then the shock absorber simulation positioning component 2 is removed from the connecting rod 3.

[0062] S4. Before reinstalling the shock absorber, first install the shock absorber simulation positioning component 2 onto the connecting rod 3 to obtain the simulated positional relationship of the shock absorber relative to the wheel hub simulation positioning component 1 within the spatial range.

[0063] S5. The shock absorber is installed on the vehicle suspension by means of the spatial position relationship between the shock absorber simulation positioning component 2 and the wheel hub simulation positioning component 1, so as to maintain the consistency of the shock absorber and wheel parameters before and after installation.

[0064] The automotive shock absorber disassembly and positioning mechanism disclosed in this invention uses the shock absorber simulation positioning component 2, the wheel hub simulation positioning component 1, and the connecting rod 3 to cooperate in positioning the shock absorber on the suspension and obtain the relative position of the wheel hub and the shock absorber. During installation, the shock absorber simulation positioning component 2 is used to restore the relative position of the shock absorber and the wheel hub, thereby ensuring the accuracy of the wheel positioning parameters.

[0065] In the shock absorber assembly and positioning mechanism, the wheel hub plane and the shock absorber axis are positioned by the cooperation of the wheel hub simulation positioning component 1 and the shock absorber simulation positioning component 2, thus determining their relative positions. During the assembly of the shock absorber, it is installed according to the relative positions of the shock absorber simulation positioning component 2 and the wheel hub simulation positioning component 1, thereby restoring the wheel positioning parameters to their initial state. On the one hand, the shock absorber assembly and positioning mechanism of the present invention can accurately simulate the relative position between the shock absorber and the wheel hub; on the other hand, the shock absorber assembly and positioning mechanism can facilitate the assembly and disassembly of the shock absorber; and thirdly, before and after assembly and disassembly, the shock absorber assembly and positioning mechanism itself can be locked to ensure that the relative positions remain unchanged.

[0066] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mechanism for assembling and positioning an automotive shock absorber, characterized in that: It includes a wheel hub simulation positioning assembly (1), a shock absorber simulation positioning assembly (2), and a connecting rod (3); among which, The wheel hub simulation positioning assembly (1) includes a positioning plate (11) and a positioning rod (12). The positioning plate (11) is used to fix the wheel hub away from the shock absorber. The positioning rod (12) is set on the positioning plate (11) and is used to position the center of the wheel hub. The shock absorber simulation positioning assembly (2) includes a mounting plate (21) and a positioning simulation device (22), wherein the positioning simulation device (22) is mounted on the mounting plate (21) and is used to simulate the positioning parameters of the shock absorber relative to the wheel hub. The connecting rod (3) is horizontally located between the wheel hub simulation positioning assembly (1) and the shock absorber simulation positioning assembly (2). One end of the connecting rod (3) is fixedly connected to the positioning plate (11), and the other end is fixedly connected to the mounting plate (21). The positioning simulation device (22) is located between the mounting plate (21) and the positioning disk (11). It includes a position simulation component (23) and a degree-of-freedom simulation component (24). One end of the degree-of-freedom simulation component (24) is movably connected to the mounting plate (21), and the other end is movably connected to the position simulation component (23). The position simulation component (23) is used to simulate the spatial position of the shock absorber, and the degree-of-freedom simulation component (24) is used to simulate the spatial degree of freedom of the shock absorber. The position simulation component (23) includes a guide rod (231), a fixed arm (232), and a movable arm (233). The fixed arm (232) has an arc-shaped structure. There are two fixed arms (232), which are arranged vertically on the guide rod (231) and can slide along the length of the guide rod (231). The axis of the fixed arm (232) is parallel to the axis of the guide rod (231). There are two movable arms (233). The two free ends of the fixed arm (232) are respectively hinged to the movable arm (233). The movable arm (233) has an arc-shaped structure. At least one threaded hole (2300) is provided on both the fixed arm (232) and the movable arm (233). A first locking bolt (2301) is provided in the threaded hole (2300). The degree-of-freedom simulation component (24) includes a connecting seat (241), a connecting screw (242), and a locking nut (243). The connecting seat (241) is disposed on the side of the mounting plate (21) facing the positioning disk (11). The connecting seat (241) has a mounting groove (2411) with its opening facing the positioning disk (11). The guide rod (231) is inserted into the mounting groove (2411) and rotatably connected to the mounting groove (2411). The connecting seat (241) is provided with a second locking bolt (2412) for fixing the guide rod (231) and the connecting seat (241) in a relative position. The mounting plate (21) has a second strip hole (211) along its length. One end of the connecting screw (242) is fixedly connected to the connecting seat (241), and the other end passes horizontally through the second strip hole (211) and is connected to the locking nut (243).

2. The automotive shock absorber disassembly and positioning mechanism as described in claim 1, characterized in that: The positioning disc (11) includes a first disc body (111) and a second disc body (112). The first disc body (111) is used to connect with the side of the wheel hub away from the shock absorber. The second disc body (112) is fixedly installed on the top surface of the first disc body (111) and is parallel to the first disc body (111). Two connecting rods (3) are arranged parallel to each other at intervals. One end of the connecting rod (3) is vertically fixedly connected to the second disc body (112), and the other end of the connecting rod (3) is movably connected to the mounting plate (21).

3. The automotive shock absorber disassembly and positioning mechanism as described in claim 2, characterized in that: The first disc body (111) has a disc-shaped structure. The surface of the first disc body (111) is provided with a plurality of first strip holes (1111). The plurality of first strip holes (1111) are arranged at equal intervals around the central axis of the first disc body (111). The first strip holes (1111) are used to connect with the bolt holes of the wheel hub.

4. The automotive shock absorber disassembly and positioning mechanism as described in claim 3, characterized in that: A positioning frame (1112) is fixedly installed at the center of the side of the first disc (111) away from the outline. The positioning rod (12) is slidably installed on the positioning frame (1112), and one end of the positioning rod (12) faces the center of the first disc (111). A through hole (1110) is opened at the center of the first disc (111) for the positioning rod (12) to pass through.

5. The automotive shock absorber disassembly and positioning mechanism as described in claim 2, characterized in that: The connecting rod (3) has scale lines (31) along its length. The two ends of the mounting plate (21) are slidably connected to the connecting rod (3). The top surface of the mounting plate (21) is provided with a third locking bolt (212) for fixing the mounting plate (21) and the connecting rod (3) in a relative position.

6. A method for disassembling and positioning an automotive shock absorber, utilizing the automotive shock absorber disassembly and positioning mechanism as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Fix the positioning plate (11) on the side of the wheel hub away from the shock absorber, and ensure that the positioning plate (11) is positioned with the center of the wheel hub, so as to realize the positioning of the shock absorber simulation positioning component (2) and the wheel. S2. Connect the shock absorber simulation positioning component (2) and the wheel hub simulation positioning component (1) through the connecting rod (3) to transmit the relevant positioning relationship and provide a positioning reference for the shock absorber simulation positioning component (2); S3. The relevant positioning parameters of the shock absorber relative to the wheel hub are simulated by the positioning simulation device (22) and the mounting plate (21), and then the shock absorber simulation positioning component (2) is removed from the connecting rod (3). S4. Before reinstalling the shock absorber, first install the shock absorber simulation positioning component (2) onto the connecting rod (3) to obtain the simulated positional relationship of the shock absorber relative to the wheel hub simulation positioning component (1) in the space. S5. The shock absorber is installed on the vehicle suspension by means of the spatial position relationship between the shock absorber simulation positioning component (2) and the wheel hub simulation positioning component (1) to maintain the consistency of the shock absorber and wheel parameters.

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