Checking fixture for detecting suspension spring

Abstract

The invention discloses a detection tool for suspension spring detection, and relates to the technical field of suspension spring detection, the detection tool comprises a fixing assembly, the top of the fixing assembly is fixedly provided with a detection assembly, the fixing assembly comprises a base, the detection assembly comprises a floating table, and four corners of the bottom of the floating table are provided with hydraulic telescopic rods. The bottom of the hydraulic telescopic rod is fixedly connected with the base, the output end of the hydraulic telescopic rod is fixedly connected with the floating table, a strip-shaped groove hole is formed in one end of the bottom end of the floating table, a detection block is slidably connected into the strip-shaped groove hole, a detection plate is arranged at the bottom of the detection block, and a first pushing spring is fixedly installed on one side of the detection block. A first thrust sensor is fixedly mounted at one end of the first pushing spring; according to the invention, the suspension spring can be conveniently fixed, the ring distance, the verticality and the coaxiality of the to-be-detected spring can be automatically detected, the operation is convenient, the efficiency is high, and the practical value is high.

Description

Technical Field

[0001] This invention relates to the field of suspension spring testing technology, specifically to a testing tool for suspension spring testing. Background Technology

[0002] As a key component of the spring damper assembly, the suspension coil spring's main functions are to buffer vibration, support load, and maintain system stability. A coil spring is an elastic mechanical part, made by winding spring steel wire into a spiral shape using cold or hot coiling processes. After forming, it undergoes processes such as annealing, quenching and tempering, shot peening, powder coating, and end ring grinding. Deviations in perpendicularity, coaxiality, and straightness during processing directly affect the assembly clearance with the damper and the spring's stability during operation, leading to interference between the spring and the damper and causing abnormal noise. Therefore, it is necessary to inspect the spring's form and position tolerances to determine its quality. These tolerances cannot be accurately measured by the human eye or simple measuring tools and require precision equipment. For spring specifications, the inspection mainly focuses on the spring's perpendicularity, coaxiality, and pitch.

[0003] Based on the above, the inventors have discovered the following problems: the current method of measuring suspension coil springs mainly involves manual measurement using measuring instruments, which is not very accurate, has certain limitations, and is cumbersome, inefficient, and inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a gauge for testing suspension springs in order to achieve a more practical purpose. Summary of the Invention

[0005] The purpose of this invention is to provide a gauge for testing suspension springs, so as to solve the problems mentioned in the background art.

[0006] A fixture for testing suspension springs includes a fixing assembly, on the top of which a testing assembly is fixedly mounted. The fixing assembly includes a base, and the testing assembly includes a floating platform. Hydraulic telescopic rods are located at the four corners of the bottom of the floating platform. The bottom of each hydraulic telescopic rod is fixedly connected to the base, and its output end is fixedly connected to the floating platform. A strip-shaped slot is formed at one end of the bottom of the floating platform. A testing block is slidably connected inside the strip-shaped slot. A testing plate is located at the bottom of the testing block, and the testing plate and testing block are fixedly connected using fixing screws. A first push spring is fixedly mounted on one side of the testing block, and a first thrust sensor is fixedly mounted on one end of the first push spring. The first thrust sensor is fixedly mounted inside one side of the strip-shaped slot.

[0007] By adopting the above technical solution, the fixed components facilitate the clamping and fixing of the spring under test, and control its rotation and movement. The hydraulic telescopic rod facilitates the raising and lowering of the floating platform. Raising the floating platform allows for easy disassembly and installation of the spring under test, while lowering it inserts the bottom of the detection plate into the gap between the spring's rings, facilitating testing. The slotted holes facilitate the placement of the detection block. The detection plate, with its bottom end inserted into the gap between the spring's rings, is used to detect the uniformity of the ring gap. The fixing screws facilitate the fixing of the detection plate onto the detection block, allowing the detection plate to slide under lateral force. The first push spring buffers lateral impacts, and the preloaded first thrust sensor improves measurement stability. The first thrust sensor facilitates the detection of lateral thrust; large fluctuations in the test data indicate unevenness in the gap between the spring's rings.

[0008] Furthermore, a detection cavity is fixedly installed on one side of the top of the detection plate, an electric telescopic rod is fixedly installed inside the detection cavity, and a second thrust sensor is fixedly installed at the output end of the electric telescopic rod.

[0009] By adopting the above technical solution and setting up the electric telescopic rod, it is easy to control the up and down movement of the second thrust sensor.

[0010] Furthermore, a second push spring is fixedly installed at the bottom of the second thrust sensor, and a push plate is fixedly installed at the other end of the second push spring.

[0011] By adopting the above technical solution, the setting of the second push spring and the second thrust sensor facilitates the operation of the electric telescopic rod, which causes the second thrust sensor to drive the push plate to move downward, so that the bottom of the push plate is in contact with the side of the spring to be tested. The second push spring buffers the longitudinal impact and preloads the second thrust sensor, improving the longitudinal detection accuracy. The second thrust sensor obtains the ring radius data of the spring to be tested, which is used to detect whether the ring diameter of the spring to be tested is consistent, thereby realizing the detection of the perpendicularity and coaxiality of the spring to be tested.

[0012] Furthermore, a third guide slider is provided on one side of the push plate, and a third guide groove is provided on one side of the middle part of the detection plate. The third guide slider and the third guide groove are slidably connected.

[0013] By adopting the above technical solution, the stability and accuracy of the push plate's up-and-down movement are improved through the setting of the third guide slider and the third guide groove.

[0014] Furthermore, a plurality of first rollers are rotatably connected to one side of the bottom of the detection plate, and a plurality of second rollers are rotatably connected to the bottom of the push plate.

[0015] By adopting the above technical solution, the setting of the first roller and the second roller facilitates the reduction of friction between the spring under test and the push plate and the detection plate when the spring rotates and moves, thus avoiding the impact on the accuracy of the detection data.

[0016] Furthermore, a detection box is fixedly installed on the top of the floating platform, and a touch screen is fixedly installed on one side of the detection box.

[0017] By adopting the above technical solution, the detection box facilitates the installation of a control system inside, enabling convenient control of the operation of the drive motor, the first cylinder, the second cylinder, the hydraulic telescopic rod, and the electric telescopic rod. It also receives and processes data collected by the first thrust sensor and the second thrust sensor. The touch screen facilitates the control of the device's operation and allows for easy reading and observation of the device's operating status and data.

[0018] Furthermore, a movable seat is provided on the inner side of the top of the base, a second guide slider is provided at the bottom of the movable seat, and a second guide groove is provided on the inner side of the top of the base, with the second guide slider and the second guide groove slidably connected.

[0019] By adopting the above technical solution, the second guide slider and the second guide groove make the sliding of the moving seat more stable and accurate.

[0020] Furthermore, a fixed plate is fixedly installed at one end of the top of the movable seat, and a movable plate is provided at the other end of the top of the movable seat. A first guide slider is provided at the bottom of the movable plate, and a first guide groove is provided at the top of the movable seat. The first guide slider is slidably connected to the first guide groove.

[0021] By adopting the above technical solution, the sliding connection between the first guide slider and the first guide groove makes the sliding of the moving plate more stable and accurate.

[0022] Furthermore, the fixed plate is rotatably connected to a first spring seat on the side facing the movable plate, the movable plate is rotatably connected to a second spring seat on the side facing the fixed plate, and a drive motor is fixedly installed on the other side of the movable plate, with the output end of the drive motor fixedly connected to the second spring seat.

[0023] By adopting the above technical solution, the first spring seat and the second spring seat facilitate the clamping and fixing of the spring to be tested when the moving plate and the fixed plate are close to each other. Both the first spring seat and the second spring seat are fitted with rubber sleeves and tapered ends, which facilitates the stable fixing of the spring to be tested without damaging the surface of the spring to be tested. The drive motor works to make the second spring seat drive the spring to be tested to rotate. At the same time, the moving seat and the moving plate move synchronously towards the detection plate, which facilitates the sliding of the detection plate and the push plate on the side of the ring body and the gap between the ring bodies of the spring to be tested, which facilitates the detection of the perpendicularity, coaxiality and ring distance of the spring to be tested.

[0024] Furthermore, a first cylinder is fixedly installed at both ends on one side of the base, and the output end of the first cylinder is fixedly connected to one side of the movable seat. A second cylinder is fixedly installed at the top of one side of the base, and the output end of the second cylinder is fixedly connected to one side of the movable plate.

[0025] By adopting the above technical solution, the setting of the first cylinder and the second cylinder facilitates the separate control of the movement of the moving seat and the moving plate, thereby controlling the relative position of the fixed plate and the moving plate. This allows the fixed plate and the moving plate to approach each other and hold the spring under test in place. The synchronous movement of the fixed plate and the moving plate facilitates the movement of the spring under test.

[0026] On the other hand, the present invention provides a method for using a gauge for testing suspension springs, comprising the following steps:

[0027] Step 1, Install the spring to be tested: Adjust the position of the moving seat with the first cylinder and the position of the moving plate with the second cylinder so that the moving plate and the fixed plate cooperate with each other to clamp the spring to be tested between the first spring seat and the second spring seat.

[0028] Step 2, Detection position adjustment: The floating table is driven into the detection area by the hydraulic telescopic rod, so that the bottom end of the detection plate is embedded in the ring gap at one end of the spring to be tested. By adjusting the position of the moving plate and the moving seat, the first roller on the detection plate and the second roller on the push plate are respectively in contact with the contact point on the ring and the external tangent point of the ring located on the inner end face of the detection plate.

[0029] Step 3, Spring Testing: By starting the drive motor, the first cylinder and the second cylinder, the drive motor makes the spring under test rotate at a constant speed. The first cylinder and the second cylinder work together to make the rotating spring under test move laterally at a constant speed. The ring of the spring under test moves laterally against the test plate. At the same time, during the lateral movement, the outer tangent point of the ring of the spring under test continuously passes through the push plate.

[0030] When the spring under test moves from one end to the other, if the first thrust sensor connected to the detection plate detects a change in lateral thrust during the process, it means that the position of the spring under test at the node of the change value has been laterally twisted or deformed, and there is a problem with the ring pitch of the spring under test at that point; otherwise, the ring pitch is qualified.

[0031] When the spring under test moves from one end to the other, if the second thrust sensor connected to the push plate detects a change in longitudinal thrust during the process, it indicates that there is a difference in the ring diameter of the spring under test at the node of the change value, and there is a problem with the size of the ring of the spring under test at that point, that is, there is a problem with the overall perpendicularity and coaxiality of the spring under test. Otherwise, the perpendicularity and coaxiality are qualified.

[0032] Step 4, Fixture Reset: The reset sequence is as follows: the hydraulic telescopic rod controls the floating platform to reset; the first and second cylinders work together to reset the moving seat and moving plate; the second cylinder controls the moving plate to move away from the fixed plate, removes the spring to be tested, and installs another spring to be tested. The above steps 1 to 3 are used to perform cyclic testing.

[0033] Compared with the prior art, the beneficial effects of this invention are as follows: The fixed assembly facilitates the clamping and fixing of the spring under test, and controls its rotation and movement. The hydraulic telescopic rod facilitates the raising and lowering of the floating platform. Raising the floating platform facilitates the disassembly and installation of the spring under test, while lowering it allows the bottom end of the detection plate to be inserted into the gap between the rings of the spring under test, facilitating testing. The slotted holes facilitate the placement of the detection block, and the detection plate allows its bottom end to be inserted into the gap between the rings of the spring under test for detecting the uniformity of the gap. The fixing screws... The design facilitates the fixing of the detection plate onto the detection block, allowing the detection plate to slide when subjected to lateral forces. The first push spring helps buffer lateral impacts, and the pre-loaded first thrust sensor improves measurement stability. The first thrust sensor also facilitates the detection of lateral thrust; large fluctuations in the detection data indicate uneven ring gaps in the spring under test. This invention allows for convenient fixing of suspension springs and automatically detects the ring gap, perpendicularity, and coaxiality of the spring under test. It is convenient, efficient, and has high practical value. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a testing fixture for suspension spring testing according to the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the fixing component of the present invention;

[0036] Figure 3 This is an exploded view of the fixing component of the present invention;

[0037] Figure 4 This is a three-dimensional structural diagram of the detection component of the present invention;

[0038] Figure 5 This is a partial exploded view of the detection component of the present invention;

[0039] Figure 6 This is a flowchart illustrating the method of using a testing tool for suspension spring testing according to the present invention.

[0040] In the diagram: 1. Fixed assembly; 11. Base; 12. Movable seat; 13. Fixed plate; 14. Movable plate; 15. First spring seat; 16. Second spring seat; 17. Drive motor; 18. First guide slider; 19. First guide groove; 110. Second guide slider; 111. Second guide groove; 112. First cylinder; 113. Second cylinder; 2. Detection assembly; 21. Floating stage; 22. Hydraulic telescopic rod; 23. Detection box; 24. Touch screen; 25. Strip groove; 26. Detection block; 27. Detection plate; 28. Fixing screw; 29. ​​First roller body; 210. Third guide groove; 211. First push spring; 212. First thrust sensor; 213. Detection cavity; 214. Electric telescopic rod; 215. Second thrust sensor; 216. Second push spring; 217. Push plate; 218. Second roller body; 219. Third guide slider; 3. Spring to be tested. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions 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, 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.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means two or more.

[0043] Example 1

[0044] Please see Figures 1-6This invention provides a technical solution: a testing fixture for suspension spring testing, comprising a fixing component 1. The fixing component 1 facilitates clamping and fixing the spring 3 to be tested, and controls the rotation and movement of the spring 3. A testing component 2 is fixedly installed on the top of the fixing component 1. The fixing component 1 includes a base 11. The testing component 2 includes a floating platform 21. Hydraulic telescopic rods 22 are provided at the four corners of the bottom of the floating platform 21. The hydraulic telescopic rods 22 facilitate the raising and lowering of the floating platform 21. Raising the floating platform 21 facilitates the disassembly and installation of the spring 3 to be tested. Lowering the floating platform 21 inserts the bottom end of the testing plate 27 into the gap of the ring body of the spring 3 to facilitate testing of the spring 3. The bottom of the hydraulic telescopic rods 22 is fixedly connected to the base 11, and the output end of the hydraulic telescopic rods 22 is fixedly connected to the floating platform 21. A strip-shaped slot 25 is provided at one end of the bottom of the floating platform 21. The strip-shaped slot 25 facilitates the setting of a testing block 26. A testing plate 26 is slidably connected inside the strip-shaped slot 25. The measuring block 26 has a measuring plate 27 at its bottom. The measuring plate 27 facilitates the insertion of the bottom end into the ring gap of the spring 3 to be tested, and is used to detect whether the ring gap is uniform. The measuring plate 27 and the measuring block 26 are fixedly connected by a fixing screw 28. The fixing screw 28 facilitates the fixed installation of the measuring plate 27 on the measuring block 26, and allows the measuring plate 27 to drive the measuring block 26 to slide when subjected to lateral force. A first push spring 211 is fixedly installed on one side of the measuring block 26. The first push spring 211 helps to buffer lateral impact and preload the first thrust sensor 212 to improve measurement stability. The first thrust sensor 212 is fixedly installed on one end of the first push spring 211. The first thrust sensor 212 is fixedly installed inside one side of the strip-shaped slot hole 25. The first thrust sensor 212 facilitates the detection of lateral thrust. When the detection data shows large fluctuations, it indicates that the ring gap of the spring 3 to be tested is not uniform.

[0045] The detection plate 27 has a detection cavity 213 fixedly installed on one side of its top. An electric telescopic rod 214 is fixedly installed inside the detection cavity 213. A second thrust sensor 215 is fixedly installed at the output end of the electric telescopic rod 214. The electric telescopic rod 214 facilitates the control of the second thrust sensor 215 to move up and down.

[0046] The second thrust sensor 215 has a second push spring 216 fixedly installed at its bottom, and a push plate 217 fixedly installed at the other end of the second push spring 216. The arrangement of the second push spring 216 and the second thrust sensor 215 facilitates the operation of the electric telescopic rod 214 to drive the second thrust sensor 215 to move the push plate 217 downward, so that the bottom of the push plate 217 fits against the side of the spring 3 to be tested. The second push spring 216 buffers the longitudinal impact and preloads the second thrust sensor 215 to improve the longitudinal detection accuracy. The second thrust sensor 215 acquires the ring radius data of the spring 3 to be tested, which is used to detect whether the ring diameter of the spring 3 to be tested is consistent, thereby realizing the detection of the perpendicularity and coaxiality of the spring 3 to be tested.

[0047] The push plate 217 has a third guide slider 219 on one side and a third guide groove 210 on one side of the middle part of the detection plate 27. The third guide slider 219 and the third guide groove 210 are slidably connected. The setting of the third guide slider 219 and the third guide groove 210 makes it easier to improve the stability and accuracy of the push plate 217 moving up and down.

[0048] Among them, a number of first rollers 29 are rotatably connected to one side of the bottom of the detection plate 27, and a number of second rollers 218 are rotatably connected to the bottom of the push plate 217. The arrangement of the first rollers 29 and the second rollers 218 helps to reduce the friction between the spring to be tested 3 and the push plate 217 and the detection plate 27 when the spring to be tested rotates and moves, so as to avoid affecting the accuracy of the detection data.

[0049] The floating platform 21 is fixedly equipped with a detection box 23 on its top, and a touch screen 24 is fixedly equipped on one side of the detection box 23. The detection box 23 facilitates the setting of a control system inside the detection box 23, which can conveniently control the operation of the drive motor 17, the first cylinder 112, the second cylinder 113, the hydraulic telescopic rod 22 and the electric telescopic rod 214, and receive and process the data collected by the first thrust sensor 212 and the second thrust sensor 215. The touch screen 24 facilitates the control of the device's operation and makes it easy to read and observe the device's operating status and data.

[0050] The base 11 has a movable seat 12 on the inner side of its top end, and a second guide slider 110 on the bottom of the movable seat 12. The base 11 has a second guide groove 111 on the inner side of its top end. The second guide slider 110 and the second guide groove 111 are slidably connected. The second guide slider 110 and the second guide groove 111 make the sliding of the movable seat 12 more stable and accurate.

[0051] The movable base 12 has a fixed plate 13 fixedly installed at one end of its top, and a movable plate 14 is provided at the other end of its top. The movable plate 14 has a first guide slider 18 at its bottom, and a first guide groove 19 is provided at the top of the movable base 12. The first guide slider 18 is slidably connected to the first guide groove 19. The slidable connection between the first guide slider 18 and the first guide groove 19 makes the sliding of the movable plate 14 more stable and accurate.

[0052] The fixed plate 13 is rotatably connected to the first spring seat 15 on the side facing the movable plate 14, and the movable plate 14 is rotatably connected to the second spring seat 16 on the side facing the fixed plate 13. A drive motor 17 is fixedly installed on the other side of the movable plate 14, and the output end of the drive motor 17 is fixedly connected to the second spring seat 16. The arrangement of the first spring seat 15 and the second spring seat 16 facilitates the clamping and fixing of the spring 3 to be tested when the movable plate 14 and the fixed plate 13 are close to each other. The surfaces of the first spring seat 15 and the second spring seat 16 are both covered with rubber sleeves and tapered ends, which facilitates the stable fixing of the spring 3 to be tested without damaging the surface of the spring 3 to be tested. When the drive motor 17 works, the second spring seat 16 drives the spring 3 to be tested to rotate. At the same time, the movable seat 12 and the movable plate 14 move synchronously towards the detection plate 27, which facilitates the sliding of the detection plate 27 and the push plate 217 on the side of the ring body and the gap between the ring bodies of the spring 3 to be tested, which facilitates the detection of the perpendicularity, coaxiality and ring distance of the spring 3 to be tested.

[0053] The base 11 has a first cylinder 112 fixedly installed at both ends on one side. The output end of the first cylinder 112 is fixedly connected to one side of the movable seat 12. The base 11 has a second cylinder 113 fixedly installed at the top of one side. The output end of the second cylinder 113 is fixedly connected to one side of the movable plate 14. The first cylinder 112 and the second cylinder 113 are set to facilitate the movement of the movable seat 12 and the movable plate 14 respectively, thereby controlling the relative position of the fixed plate 13 and the movable plate 14. This makes it easy for the fixed plate 13 and the movable plate 14 to move closer to each other and hold the spring 3 under test in place. The synchronous movement of the fixed plate 13 and the movable plate 14 facilitates the movement of the spring 3 under test.

[0054] This invention provides a method for using a gauge for testing suspension springs, comprising the following steps:

[0055] Step 1, install the spring to be tested: adjust the position of the moving seat 12 by the first cylinder 112 and adjust the position of the moving plate 14 by the second cylinder 113, so that the moving plate 14 and the fixed plate 13 cooperate with each other to clamp the spring to be tested 3 between the first spring seat 15 and the second spring seat 16.

[0056] Step 2, Detection position adjustment: The floating table 21 is driven into the detection area by the hydraulic telescopic rod 22, so that the bottom end of the detection plate 27 is embedded in the ring gap at one end of the spring 3 to be tested. By adjusting the position of the moving plate 14 and the moving seat 12, the first roller 29 on the detection plate 27 and the second roller 218 on the push plate 217 are respectively in contact with the contact point on the ring and the external tangent point of the ring located on the inner end face of the detection plate 27.

[0057] Step 3, Spring detection: By starting the drive motor 17, the first cylinder 112 and the second cylinder 113, the drive motor 17 works to make the spring 3 under test rotate at a constant speed. The first cylinder 112 and the second cylinder 113 cooperate to make the rotating spring 3 under test move laterally at a constant speed. The ring of the spring 3 under test is in contact with the detection plate 27 and moves laterally. At the same time, during the lateral movement, the outer tangent point of the ring of the spring 3 under test continuously passes through the push plate 217.

[0058] When the spring 3 under test moves from one end to the other, if the first thrust sensor 212 connected to the detection plate 27 detects a change in lateral thrust, it means that the position of the spring 3 under test at the node of the change value has a lateral twist or deformation, and there is a problem with the ring pitch of the spring 3 under test at that point. Otherwise, the ring pitch is qualified.

[0059] When the spring 3 under test moves from one end to the other, if the second thrust sensor 215 connected to the push plate 217 detects a change in longitudinal thrust during the process, it means that there is a difference in the ring diameter of the ring body at the position of the spring 3 under test at the node of the change value. The size of the ring body of the spring 3 under test at that point is problematic, that is, the overall perpendicularity and coaxiality of the spring 3 under test are problematic. Otherwise, the perpendicularity and coaxiality are qualified.

[0060] Step 4, Fixture Reset: The reset sequence is as follows: the hydraulic telescopic rod 22 controls the floating table 21 to reset; the first cylinder 112 and the second cylinder 113 cooperate to reset the moving seat 12 and the moving plate 14; the second cylinder 113 controls the moving plate 14 to move away from the fixed plate 13, remove the spring 3 to be tested, and install another spring 3 to be tested. The cycle test is performed through the above steps one to three.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

[0062] In the embodiments provided in this application, it should be understood that the disclosed systems, modules, and methods can be implemented in other ways. For example, the module embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between modules or units, and may be electrical, mechanical, or other forms.

[0063] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. This application is not limited to the exact structures described above and illustrated in the accompanying drawings, and it should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, various changes and modifications made without departing from the concept of this application should be considered to fall within the protection scope of this application.

Claims

1. A gauge for testing suspension springs, characterized in that, The device includes a fixing component (1), on which a detection component (2) is fixedly mounted. The fixing component (1) includes a base (11), and the detection component (2) includes a floating platform (21). The floating platform (21) has hydraulic telescopic rods (22) at its four corners. The bottom of the hydraulic telescopic rods (22) is fixedly connected to the base (11), and the output end of the hydraulic telescopic rods (22) is fixedly connected to the floating platform (21). A strip-shaped slot (25) is provided at one end of the bottom of the floating platform (21). A detection block (26) is slidably connected inside the strip-shaped slot (25). A detection plate (27) is provided at the bottom of the detection block (26). The detection plate (27) and the detection block (26) are fixedly connected by fixing screws (28). A first push spring (211) is fixedly installed on one side of the detection block (26). A first thrust sensor (212) is fixedly installed at one end of the first push spring (211). The first thrust sensor (212) is fixedly installed inside the strip-shaped slot (25) on one side.

2. The inspection tool for testing suspension springs according to claim 1, characterized in that, A detection cavity (213) is fixedly installed on one side of the top of the detection plate (27). An electric telescopic rod (214) is fixedly installed inside the detection cavity (213). A second thrust sensor (215) is fixedly installed at the output end of the electric telescopic rod (214).

3. The inspection tool for testing suspension springs according to claim 2, characterized in that, The second thrust sensor (215) is fixedly mounted with a second push spring (216) at its bottom, and a push plate (217) is fixedly mounted at the other end of the second push spring (216).

4. A gauge for testing suspension springs according to claim 3, characterized in that, The push plate (217) is provided with a third guide slider (219) on one side, and the detection plate (27) is provided with a third guide groove (210) on one side of the middle part. The third guide slider (219) and the third guide groove (210) are slidably connected.

5. A gauge for testing suspension springs according to claim 4, characterized in that, The bottom side of the detection plate (27) is rotatably connected to a number of first rollers (29), and the bottom of the push plate (217) is rotatably connected to a number of second rollers (218).

6. A gauge for testing suspension springs according to claim 1, characterized in that, A detection box (23) is fixedly installed on the top of the floating platform (21), and a touch screen (24) is fixedly installed on one side of the detection box (23).

7. A gauge for testing suspension springs according to claim 1, characterized in that, The base (11) has a movable seat (12) on the inner side of its top end, and a second guide slider (110) is provided at the bottom of the movable seat (12). The base (11) has a second guide groove (111) on the inner side of its top end, and the second guide slider (110) and the second guide groove (111) are slidably connected.

8. A gauge for testing suspension springs according to claim 7, characterized in that, A fixed plate (13) is fixedly installed at one end of the top of the movable seat (12), and a movable plate (14) is provided at the other end of the top of the movable seat (12). A first guide slider (18) is provided at the bottom of the movable plate (14), and a first guide groove (19) is provided at the top of the movable seat (12). The first guide slider (18) is slidably connected to the first guide groove (19).

9. A gauge for testing suspension springs according to claim 8, characterized in that, The fixed plate (13) is rotatably connected to the first spring seat (15) on the side facing the movable plate (14), and the movable plate (14) is rotatably connected to the second spring seat (16) on the side facing the fixed plate (13). A drive motor (17) is fixedly installed on the other side of the movable plate (14), and the output end of the drive motor (17) is fixedly connected to the second spring seat (16).

10. A gauge for testing suspension springs according to claim 9, characterized in that, A first cylinder (112) is fixedly installed at both ends on one side of the base (11). The output end of the first cylinder (112) is fixedly connected to one side of the movable seat (12). A second cylinder (113) is fixedly installed at the top of one side of the base (11). The output end of the second cylinder (113) is fixedly connected to one side of the movable plate (14).

11. A method of using a gauge for testing suspension springs, characterized in that, If applied to a gauge for testing suspension springs according to any one of claims 1 to 10, it includes the following steps: Step 1, install the spring to be tested: adjust the position of the moving seat (12) by the first cylinder (112) and adjust the position of the moving plate (14) by the second cylinder (113) so that the moving plate (14) and the fixed plate (13) cooperate with each other to clamp the spring to be tested (3) between the first spring seat (15) and the second spring seat (16); Step 2, Detection position adjustment: The floating table (21) is driven into the detection area by the hydraulic telescopic rod (22), so that the bottom end of the detection plate (27) is embedded in the ring gap at one end of the spring (3) to be tested. By adjusting the position of the moving plate (14) and the moving seat (12), the first roller (29) on the detection plate (27) and the second roller (218) on the push plate (217) are respectively in contact with the contact point on the ring and the external tangent point of the ring located on the inner end face of the detection plate (27); Step 3, Spring detection: By starting the drive motor (17), the first cylinder (112) and the second cylinder (113), the drive motor (17) works to make the spring (3) under test rotate at a constant speed. The first cylinder (112) and the second cylinder (113) work together to make the rotating spring (3) under test move laterally at a constant speed. The ring of the spring (3) under test is in contact with the detection plate (27) and moves laterally. At the same time, during the lateral movement, the outer tangent point of the ring of the spring (3) under test continuously passes through the push plate (217). When the spring (3) under test moves from one end to the other end, if the first thrust sensor (212) connected to the detection plate (27) detects a change in lateral thrust, it means that the position of the spring (3) under test at the change value node has a lateral twist or deformation, and the ring distance of the spring (3) under test at that point has a problem. Otherwise, the ring distance is qualified. When the spring (3) under test moves from one end to the other, if the second thrust sensor (215) connected to the push plate (217) detects a change in longitudinal thrust during the process, it indicates that there is a difference in the ring diameter of the ring body at the position of the spring (3) under test at the node of the change value, and there is a problem with the size of the ring body of the spring (3) under test at that point, that is, there is a problem with the overall perpendicularity and coaxiality of the spring (3) under test. Otherwise, the perpendicularity and coaxiality are qualified. Step 4, Fixture Reset: The reset sequence is as follows: the hydraulic telescopic rod (22) controls the floating table (21) to reset; the first cylinder (112) and the second cylinder (113) work together to reset the moving seat (12) and the moving plate (14); the second cylinder (113) controls the moving plate (14) to move away from the fixed plate (13), remove the spring (3) to be tested, and install another spring (3) to be tested. The cycle test is performed through the above steps one to three.

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