A testing fixture for suspension spring testing
By designing a fixture for suspension spring testing, components such as guide sliders, guide grooves, cylinders, and motors are used to achieve stable fixing and accurate testing of suspension springs. This solves the problems of low accuracy and cumbersome fixing in existing technologies, and improves the accuracy and efficiency of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGCHANG SHANCHUAN PRECISION WELDED TUBE CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-28
AI Technical Summary
Existing methods for measuring suspension coil springs mainly rely on manual measurement, which is not very accurate and the fixing process is cumbersome and inefficient.
Design a fixture that includes a fixing component and a detection component. Utilize components such as guide sliders, guide grooves, cylinders, and motors to achieve stable fixing and accurate detection of suspension springs. Use sensors to detect the spring's perpendicularity, coaxiality, and ring distance.
It improves the accuracy and efficiency of suspension spring testing, ensures the spring is securely fixed, avoids surface damage, and simplifies the operation process.
Smart Images
Figure CN224568190U_ABST
Abstract
Description
Technical Field
[0001] This utility model 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 and has certain limitations. Furthermore, the process of fixing the spring to be measured 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. Utility Model Content
[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 fixed assembly, a testing assembly fixedly mounted on the top of the fixed assembly, a movable seat provided on the inner side of the top of the base, a second guide slider provided on the bottom of the movable seat, a second guide groove provided on the inner side of the top of the base, the second guide slider and the second guide groove being slidably connected, a fixed plate fixedly mounted on one end of the top of the movable seat, and a movable plate provided on the other end of the top of the movable seat, a first guide slider provided on the bottom of the movable plate, a first guide groove provided on the top of the movable seat, the first guide slider being slidably connected to the first guide groove, a first spring seat rotatably connected to the fixed plate facing the movable plate, a second spring seat rotatably connected to the movable plate facing the fixed plate, a drive motor fixedly mounted on the other side of the movable plate, the output end of the drive motor being fixedly connected to the second spring seat, a first cylinder fixedly mounted on both ends of one side of the base, the output end of the first cylinder being fixedly connected to one side of the movable seat, a second cylinder fixedly mounted on the top of one side of the base, the output end of the second cylinder being fixedly connected to one side of the movable plate.
[0007] Furthermore, the fixing component includes a base, the detection component includes a floating platform, the four corners of the bottom of the floating platform are provided with hydraulic telescopic rods, the bottom of the hydraulic telescopic rods are fixedly connected to the base, and the output end of the hydraulic telescopic rods is fixedly connected to the floating platform.
[0008] Furthermore, a strip-shaped slot is provided at one end of the bottom of the floating platform, and a detection block is slidably connected inside the strip-shaped slot.
[0009] Furthermore, a detection plate is provided at the bottom of the detection block, and the detection plate is fixedly connected to the detection block using fixing screws.
[0010] Furthermore, a first push spring is fixedly installed on one side of the detection block, and a first thrust sensor is fixedly installed on one end of the first push spring. The first thrust sensor is fixedly installed inside one side of the strip-shaped slot.
[0011] 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.
[0012] 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.
[0013] 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.
[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] 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.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the setting of the second guide slider and the second guide groove facilitates more stable and accurate sliding of the moving seat; the sliding connection between the first guide slider and the first guide groove facilitates more stable and accurate sliding of the moving plate; the setting of the first spring seat and the second spring seat facilitates clamping and fixing of the spring to be tested when the moving plate and the fixed plate are close to each other; both the surface of the first spring seat and the second spring seat are fitted with rubber sleeves and tapered ends, which facilitates the secure fixing of the spring to be tested without damaging the surface of the spring to be tested; the operation of the drive motor causes the second spring seat to drive the spring to be tested to rotate, while the moving seat and the moving plate move synchronously. The directional movement of the detection plate facilitates the sliding of the detection plate and push plate on the side of the spring under test and within the gap between the spring rings. This allows for convenient detection of the spring's perpendicularity, coaxiality, and ring pitch. The use of a first and second cylinder allows for 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 facilitates the fixed plate and the moving plate to approach each other and clamp the spring under test. Synchronous movement of the fixed plate and the moving plate facilitates the movement of the spring under test. This invention provides convenient fixation of suspension springs, facilitates the detection of the spring's ring pitch, perpendicularity, and coaxiality, and offers convenient and efficient operation with high practical value. Attached Figure Description
[0017] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0018] Figure 1 This is a three-dimensional structural schematic diagram of a testing fixture for suspension springs according to the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the fixing component of this utility model;
[0020] Figure 3 This is an exploded view of the fixing component of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the detection component of this utility model;
[0022] Figure 5 This is a partial exploded view of the detection component of this utility model.
[0023] 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
[0024] 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.
[0025] 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.
[0026] Example 1
[0027] Please see Figures 1-5This utility model provides a technical solution: a testing tool for suspension spring testing, including 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. 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 the testing block 26. A sliding connection is provided inside the strip-shaped slot 25. The detection block 26 has a detection plate 27 at its bottom. The detection 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 detection plate 27 and the detection block 26 are fixedly connected by fixing screws 28. The fixing screws 28 facilitate the fixed installation of the detection plate 27 on the detection block 26, and facilitate the sliding of the detection block 26 when the detection plate 27 is subjected to lateral force. A first push spring 211 is fixedly installed on one side of the detection 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.
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] Specifically, the working principle of this inspection tool for suspension spring testing is as follows: During use, the detection box 23 allows for the installation of a control system within it. This facilitates the control of the drive motor 17, the first cylinder 112, the second cylinder 113, the hydraulic telescopic rod 22, and the electric telescopic rod 214. It also receives and processes data collected by the first thrust sensor 212 and the second thrust sensor 215. The touchscreen 24 facilitates the control of the device and allows for easy reading and observation of the device's operating status and data. The second guide slider 110 and the second guide groove 111 ensure more stable and accurate sliding of the moving seat 12. The sliding connection between the first guide slider 18 and the first guide groove 19 facilitates the movement of the moving seat 12. The sliding of plate 14 is more stable and accurate. The first spring seat 15 and the second spring seat 16 facilitate the clamping and fixing of the spring 3 under test when the moving plate 14 and the fixed plate 13 approach each other. Both the first spring seat 15 and the second spring seat 16 are fitted with rubber sleeves and tapered ends, ensuring a stable fixation of the spring 3 under test without damaging its surface. The drive motor 17 causes the second spring seat 16 to rotate the spring 3 under test. Simultaneously, the moving seat 12 and the moving plate 14 move synchronously towards the detection plate 27, allowing the detection plate 27 and the push plate 217 to slide along the side of the ring body and within the ring gap of the spring 3 under test. This facilitates the detection of the perpendicularity, coaxiality, and ring distance of the spring 3 under test. The first cylinder 112 and... The second cylinder 113 facilitates the separate control of the movement of the movable seat 12 and the movable plate 14, thereby controlling the relative position of the fixed plate 13 and the movable plate 14. This allows the fixed plate 13 and the movable plate 14 to approach each other and clamp and fix the spring 3 under test. The synchronous movement of the fixed plate 13 and the movable plate 14 facilitates the movement of the spring 3 under test. The hydraulic telescopic rod 22 facilitates the raising and lowering of the floating platform 21. Raising the floating platform 21 facilitates the disassembly and installation of the spring 3 under test. Lowering the floating platform 21 allows the bottom end of the detection plate 27 to be inserted into the gap of the ring body of the spring 3 under test, facilitating the testing of the spring 3 under test. The slotted hole 25 facilitates the setting of the detection block 26, and the detection plate 27 facilitates the insertion of the bottom end. The ring gap of the spring 3 under test is used to detect whether the ring gap is uniform. The fixing screw 28 facilitates the fixed installation of the detection plate 27 on the detection block 26, allowing the detection plate 27 to slide the detection block 26 when subjected to lateral force. The first push spring 211 helps buffer lateral impact and preloads the first thrust sensor 212, improving measurement stability. The first thrust sensor 212 facilitates the detection of lateral thrust. Large fluctuations in the detection data indicate that the ring gap of the spring 3 under test is uneven. The electric telescopic rod 214 facilitates the control of the up-and-down movement of the second thrust sensor 215. The second push spring 216 and the second thrust sensor 215...To facilitate the operation of the electric telescopic rod 214, the second thrust sensor 215 drives the push plate 217 downward, causing the bottom of the push plate 217 to fit against the side of the spring 3 under test. The second push spring 216 buffers the longitudinal impact and preloads the second thrust sensor 215, improving the longitudinal detection accuracy. The second thrust sensor 215 acquires the ring radius data of the spring 3 under test, which is used to detect whether the ring diameter of the spring 3 under test is consistent, thereby realizing the detection of the perpendicularity and coaxiality of the spring 3 under test. The setting of the third guide slider 219 and the third guide groove 210 facilitates the improvement of the stability and accuracy of the up and down movement of the push plate 217. The setting of the first roller 29 and the second roller 218 facilitates the reduction of the friction between the spring 3 under test and the push plate 217 and the detection plate 27 when rotating and moving, avoiding the impact on the accuracy of the detection data.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0039] 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.
[0040] 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 system includes a fixing component (1), on which a detection component (2) is fixedly mounted. The fixing component (1) includes a base (11), on which a movable seat (12) is provided on the inner side of the top of the base (11), and on which a second guide slider (110) is provided at the bottom of the movable seat (12). A second guide groove (111) is provided on the inner side of the top of the base (11). The second guide slider (110) and the second guide groove (111) are slidably connected. A fixing plate (13) is fixedly mounted on one end of the top of the movable seat (12), and a movable plate (14) is provided on 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 on the top of the movable seat (12). The guide slider (18) is slidably connected to the first guide groove (19). The fixed plate (13) is rotatably connected to the first spring seat (15) on the side facing the moving plate (14). The moving plate (14) is rotatably connected to the second spring seat (16) on the side facing the fixed plate (13). The other side of the moving plate (14) is fixedly installed with a drive motor (17). The output end of the drive motor (17) is fixedly connected to the second spring seat (16). The two ends of one side of the base (11) are fixedly installed with a first cylinder (112). The output end of the first cylinder (112) is fixedly connected to one side of the moving seat (12). The top of one side of the base (11) is fixedly installed with a second cylinder (113). The output end of the second cylinder (113) is fixedly connected to one side of the moving plate (14).
2. The inspection tool for testing suspension springs according to claim 1, characterized in that, The detection component (2) includes a floating platform (21), and hydraulic telescopic rods (22) are provided at the four corners of the bottom of the floating platform (21). 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).
3. The inspection tool for testing suspension springs according to claim 2, characterized in that, The bottom end of the floating platform (21) is provided with a strip-shaped slot (25), and a detection block (26) is slidably connected inside the strip-shaped slot (25).
4. A gauge for testing suspension springs according to claim 3, characterized in that, The bottom of the detection block (26) is provided with a detection plate (27), and the detection plate (27) and the detection block (26) are fixedly connected by fixing screws (28).
5. A gauge for testing suspension springs according to claim 4, characterized in that, A first push spring (211) is fixedly installed on one side of the detection block (26), and a first thrust sensor (212) is fixedly installed on one end of the first push spring (211). The first thrust sensor (212) is fixedly installed on one side inside the strip slot (25).
6. A gauge for testing suspension springs according to claim 5, 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).
7. A gauge for testing suspension springs according to claim 6, 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).
8. A gauge for testing suspension springs according to claim 7, 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.
9. A gauge for testing suspension springs according to claim 8, 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).
10. A gauge for testing suspension springs according to claim 2, 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).