Automobile suspension test tool and ozone aging resistance test device with same

Abstract

The utility model discloses a test tool of an automobile suspension and an ozone aging resistance test device with the same, the automobile suspension comprises a metal support, a lining and a rubber member, the test tool comprises a pedestal, the pedestal is provided with a support part used for supporting the metal support; the supporting piece is arranged on the upper side of the base, the supporting piece is provided with a fixing part used for fixing the lining, and the supporting piece is adjustable relative to the position of the base in the vertical direction so as to be used for adjusting the acting force applied to the rubber piece. According to the test tool for the automobile suspension, the automobile suspension can be effectively fixed, and pre-compression force can be applied to the automobile suspension according to test requirements, so that the load effect borne by a rubber part of the automobile suspension in an actual vehicle state can be effectively simulated, and the precision of a test result of the rubber part of the automobile suspension can be effectively improved. In addition, the test tool is simple in structure, convenient to disassemble and maintain, capable of being used for testing rubber parts of automobile suspensions of different structure types, good in compatibility and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle tests, in particular to a test tooling for an automotive mount and an ozone aging test device having the same. Background Art

[0002] Automotive mounts are the most important vibration isolation components in vehicles. The key to maintaining their vibration isolation function continuously lies in the excellent durability of the rubber used in the mounts. In actual working conditions, the mount rubber will heat up under the dynamic load of repeated stretching and compression. At this time, a small amount of ozone in the natural environment is sufficient to cause the mount rubber to crack, thereby affecting the vibration isolation performance of the mount and the comfort of the vehicle. Therefore, conducting an ozone aging test on the mount rubber is an essential test for mount development.

[0003] In the prior art, there are mainly two methods for the ozone aging test of automotive mount rubber. One is to conduct an ozone aging test on the raw materials of the mount rubber according to the requirements of relevant current specifications. By applying a certain load to the rubber test specimen to make it in a certain tensile state or repeated tensile state, and then conducting an ozone aging test. The biggest drawback of this method is that it cannot reflect the influence of the mount structure and manufacturing process on the test after the rubber test specimen is made into a mount part. Therefore, it is often difficult for the rubber test specimen to be equivalent to the actual part performance, resulting in errors in the test results.

[0004] The other method is to directly use the mount part assembly for the ozone aging test. The biggest drawback of this method is that the mount conducts the ozone aging test in a free state without load. Therefore, it cannot simulate the influence of the repeated stretching and compression dynamic load on the mount rubber ozone aging performance in actual working conditions, resulting in a large error in the test result. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a test tooling for an automotive mount, which can effectively improve the accuracy of the test results of the rubber parts of the mount. In addition, the test tooling has a simple structure, is convenient for disassembly and maintenance, has good compatibility and strong practicability.

[0006] The utility model also provides an ozone aging test device having the above-mentioned test tooling for an automotive mount.

[0007] The test tooling for an automotive mount according to the first aspect of the present utility model, the automotive mount includes a metal bracket, a lining, and a rubber component, the lining is arranged inside the metal bracket, the rubber component is connected between the lining and the metal bracket, the test tooling includes: a base, the base is provided with a supporting portion for supporting the metal bracket; a supporting member, the supporting member is arranged on the upper side of the base, the supporting member is provided with a fixing portion for fixing the lining, and the supporting member is adjustable in position relative to the base in the up-and-down direction for adjusting the acting force applied to the rubber component.

[0008] The test tooling for an automotive mount according to the present utility model, by providing a base and a supporting member and the supporting member being adjustable in position relative to the base in the up-and-down direction for adjusting the acting force applied to the rubber component, can effectively fix the automotive mount and apply a pre-compression force to the automotive mount according to test requirements, thereby effectively simulating the load acting on the rubber component of the automotive mount in the actual vehicle state, and further effectively improving the accuracy of the test results of the rubber component of the automotive mount. In addition, the test tooling has a simple structure, is convenient for disassembly and maintenance, and can be used to test the rubber components of automotive mounts of different structural types, with good compatibility and strong practicability.

[0009] In some embodiments, the test tooling further includes an adjusting rod, the adjusting rod extends in the up-and-down direction, one end of the adjusting rod is fixed to one of the base and the supporting member, and the other end of the adjusting rod is movably connected to the other of the base and the supporting member in the up-and-down direction.

[0010] In some embodiments, a through hole is formed in the other of the base and the supporting member, the other end of the adjusting rod passes through the through hole, and the test tooling further includes an adjusting nut, the adjusting nut is threadedly sleeved on the end of the adjusting rod passing through the through hole to adjust the relative position between the adjusting rod and the other of the base and the supporting member.

[0011] In some embodiments, the supporting member is a horizontally arranged flat plate, and the upper end of the adjusting rod is welded to the supporting member.

[0012] In some embodiments, the test tooling for the automotive mount further includes: a force measuring device, the force measuring device is configured to detect the acting force applied by the test tooling to the rubber component.

[0013] In some embodiments, the force measuring device includes a force measuring pointer, the force measuring device is fixed on the supporting member, and the free end of the force measuring pointer is adapted to abut against the base.

[0014] In some embodiments, the test tooling for the vehicle mount further includes: a vibration simulation mechanism, which is connected to the support member and is used to drive the support member to vibrate.

[0015] In some embodiments, the vibration simulation mechanism includes: a driving motor and a cam. The driving motor is arranged on the support member, the cam is sleeved on the motor shaft of the driving motor and is eccentrically arranged relative to the motor shaft of the driving motor. In the radial direction of the motor shaft, one end of the cam far away from the motor shaft forms a contact end. The cam is configured to knock on the support member through the contact end when rotating, so as to make the support member vibrate.

[0016] In some embodiments, the fixing portion is formed with a plurality of fixing holes, and the fixing portion is adapted to fixedly connect the inner lining through fasteners.

[0017] The ozone-resistant aging test device according to the second aspect of the present invention includes: a test chamber, and the test chamber has a test cavity; the test tooling for the vehicle mount according to the first aspect of the present invention, and the test tooling is arranged in the test cavity.

[0018] By arranging the test tooling for the vehicle mount in the first aspect as described above, the ozone-resistant aging test device according to the second aspect of the present invention can effectively simulate the load acting on the rubber parts of the vehicle mount in the actual vehicle state and effectively carry out the ozone-resistant aging test on the rubber parts of the vehicle mount on this basis, thereby effectively improving the accuracy of the ozone-resistant aging test results. In addition, the ozone-resistant aging test device can be used to test the rubber parts of vehicle mounts with different structural types, has good compatibility and strong practicability.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0020] Figure 1 is a schematic diagram of a test tooling for a vehicle mount from an angle according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a test tooling for a vehicle mount from another angle according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of a test tooling for a vehicle mount from yet another angle according to an embodiment of the present invention.

[0023] Reference Signs:

[0024] 100, test tooling;

[0025] 10. Base; 11. Support steel plate; 12. First fixing steel plate; 13. Second fixing steel plate;

[0026] 20. Support member;

[0027] 30. Adjusting rod;

[0028] 40. Adjusting nut;

[0029] 50. Force measuring device; 51. Force measuring pointer;

[0030] 60. Driving motor;

[0031] 70. Cam; 71. Contact end;

[0032] 80. Fastener; 81. Screw; 82. Nut; 83. Gasket;

[0033] 200. Metal bracket;

[0034] 300. Lining;

[0035] 400. Rubber part. Detailed implementation manner

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

[0037] Reference will be made below to Figures 1 - 3 Describe the test tooling 100 for an automotive mount according to an embodiment of the first aspect of the present utility model.

[0038] As Figures 1 - 3 shown, for the test tooling 100 for an automotive mount according to an embodiment of the first aspect of the present utility model, the automotive mount includes a metal bracket 200, a lining 300, and a rubber part 400. The lining 300 is arranged inside the metal bracket 200, and the rubber part 400 is connected between the lining 300 and the metal bracket 200. The test tooling 100 includes: a base 10 and a support member 20.

[0039] The base 10 is provided with a support portion for supporting the metal bracket 200; the support member 20 is disposed on the upper side of the base 10. The support member 20 is provided with a fixing portion for fixing the lining 300. The support member 20 is adjustable in position relative to the base 10 in the up and down direction to adjust the acting force applied to the rubber part 400.

[0040] It should be noted that the automotive mount has two basic functions, namely, supporting the weight of the engine and isolating the engine vibration. The vibration generated during the engine operation includes two parts. One part is the in-cylinder pulsating air pressure caused by uneven engine ignition and unbalanced engine operation, and the other part is the vibration caused by uneven road surface.

[0041] For example, the metal bracket 200, as the main load-bearing structure in the automotive mount, can be used to support the weight of the engine. The metal bracket 200 is usually made of high-strength steel. The inner lining 300 is arranged inside the metal bracket 200 and can provide additional structural support and protection. The rubber part 400 is installed between the metal bracket 200 and the inner lining 300, and the rubber part 400 can absorb and isolate the vibration generated during the engine operation through elastic deformation.

[0042] For example, the base 10, as the basic part of the test fixture 100, can be fixedly connected to the platform in the laboratory. The base 10 is provided with a supporting part, and the metal bracket 200 is placed on the supporting part. The supporting part can effectively support the metal bracket 200 to ensure that the metal bracket 200 remains stable during the test. In addition, the shape of the supporting part can be customized according to different types of metal brackets 200, so that the test fixture 100 can be applicable to different types of automotive mounts, thereby meeting the test requirements of automotive mounts for various vehicle models.

[0043] For example, the supporting member 20 is arranged on the upper side of the base 10, and the inner lining 300 is located on the upper side of the fixing part and is connected to the fixing part. For example, the supporting member 20 can move in the up and down direction while the base 10 is fixed. Another example is that the base 10 can move in the up and down direction while the supporting member 20 is fixed. Still another example is that both the supporting member 20 and the base 10 can move in the up and down direction. Further, the base 10 and the supporting member 20 have a simple structure and are detachably connected to the test fixture 100, thereby effectively improving the maintenance efficiency of the test fixture 100.

[0044] In this embodiment, when testing the automotive mount, first, the inner lining 300 of the automotive mount is fixed on the fixing part of the supporting member 20, then the metal bracket 200 of the automotive mount is installed on the supporting part of the base 10. After that, by moving the supporting member 20 relative to the base 10 in the up and down direction, different magnitudes of load actions can be applied to the automotive mount, thereby being able to adjust the magnitude of the load applied to the rubber part 400 of the automotive mount. In this way, the load action that the rubber part 400 of the automotive mount bears under the actual vehicle state can be effectively simulated, thereby effectively reducing the error of the test results of the rubber part 400 of the automotive mount.

[0045] The test tooling 100 for an automotive mount according to an embodiment of the present utility model can effectively fix the automotive mount and apply a pre-compression force to the automotive mount according to test requirements by providing a base 10 and a support member 20, and the position of the support member 20 is adjustable relative to the base 10 in the up and down direction for adjusting the acting force applied to the rubber member 400. Thus, it can effectively simulate the load acting on the rubber member 400 of the automotive mount under the actual vehicle state, and further effectively improve the accuracy of the test results of the rubber member 400 of the automotive mount. In addition, the test tooling 100 has a simple structure, is convenient for disassembly and maintenance, and can be used to test the rubber members 400 of automotive mounts of different structural types, with good compatibility and strong practicability.

[0046] Preferably, the rubber member 400 is usually installed between the metal bracket 200 and the inner liner 300 by a vulcanization process. The vulcanization process is a chemical process that converts raw rubber into a more stable and elastic material by heating. The vulcanization process can make the rubber member 400 and the metal bracket 200 and the inner liner 300 form a firm whole, ensuring that the automotive mount can effectively improve the automotive NVH performance under various operating conditions of the engine.

[0047] In an embodiment of the present utility model, as Figures 1 - 3 shown, the base 10 is composed of a support steel plate 11, a first fixing steel plate 12, and a second fixing steel plate 13. The support steel plate 11 is horizontally arranged, and the first fixing steel plate 12 and the second fixing steel plate 13 are vertically arranged. Specifically, the number of the support steel plates 11 is one, the number of the first fixing steel plates 12 and the second fixing steel plates 13 is two. The lower end of the first fixing steel plate 12 is connected to the upper surface of the support steel plate 11, and the two first fixing steel plates 12 are arranged at intervals front and back. The upper end of the second fixing steel plate 13 is connected to the lower surface of the support steel plate 11, and the two second fixing steel plates 13 are respectively located at the front end and the rear end of the support steel plate 11.

[0048] Among them, the two first fixing steel plates 12 and the support steel plate 11 together form a support portion for supporting and fixing the metal bracket 200 of the automotive mount. Further, the base 10 can be integrally formed, and the lower ends of the two second fixing steel plates 13 can be fixedly connected to the platform in the laboratory.

[0049] In this embodiment, by providing the support steel plate 11, the first fixing steel plate 12, and the second fixing steel plate 13 in the base 10, it can not only effectively increase the structural strength of the base 10, but also effectively support and fix the automotive mount, thereby effectively improving the stability and reliability of the automotive mount during the test.

[0050] In an embodiment of the present utility model, as Figures 1 - 3As shown, the test fixture 100 further includes an adjusting rod 30. The adjusting rod 30 extends in the up-and-down direction. One end of the adjusting rod 30 is fixed to one of the base 10 and the support member 20, and the other end of the adjusting rod 30 is movably connected to the other of the base 10 and the support member 20 in the up-and-down direction.

[0051] For example, the cross-section of the adjusting rod 30 can be circular. For example, the upper end of the adjusting rod 30 is fixedly connected to the support member 20, and the lower end of the adjusting rod 30 is movably connected to the base 10 in the up-and-down direction. Also, for example, the upper end of the adjusting rod 30 is movably connected to the support member 20 in the up-and-down direction, and the lower end of the adjusting rod 30 is fixedly connected to the base 10. When testing the automotive mount, by adjusting the position of the support member 20 relative to the base 10 in the up-and-down direction, the magnitude of the pre-compression force applied to the automotive mount can be changed, thereby meeting the requirements of the test.

[0052] In this embodiment, by providing the adjusting rod 30 in the test fixture 100, and one end of the adjusting rod 30 is fixed to one of the base 10 and the support member 20, and the other end of the adjusting rod 30 is movably connected to the other of the base 10 and the support member 20 in the up-and-down direction, the magnitude of the pre-load applied to the automotive mount can be effectively adjusted according to different test requirements, thereby effectively increasing the flexibility of the test fixture 100. In addition, the adjusting rod 30 has a simple structure, is easy to install, and has a low cost.

[0053] In an embodiment of the present utility model, as Figures 1 - 3 shown, a through hole is formed in the other of the base 10 and the support member 20. The other end of the adjusting rod 30 passes through the through hole. The test fixture 100 further includes an adjusting nut 40. The adjusting nut 40 is threadedly sleeved on the end of the adjusting rod 30 passing through the through hole to adjust the relative position of the adjusting rod 30 and the other of the base 10 and the support member 20.

[0054] For example, the projection shape of the through hole in the up-and-down direction can be circular. For example, a through hole is formed in the support steel plate 11 of the base 10. The lower end of the adjusting rod 30 passes through the through hole. The adjusting nut 40 is threadedly sleeved on the lower end of the adjusting rod 30 and is located on the lower side of the support steel plate 11. By adjusting the position of the adjusting nut 40 on the adjusting rod 30, the base 10 can be moved in the up-and-down direction. When the adjusting nut 40 abuts against the base 10 and the base 10 abuts against the metal bracket 200, the base 10 can be fixed by tightening the adjusting nut 40 and a pre-load can be applied to the automotive mount.

[0055] For another example, a perforation is formed on the support member 20, the upper end of the adjusting rod 30 passes through the perforation, the adjusting nut 40 is threadedly sleeved on the upper end of the adjusting rod 30 and is located on the upper side of the support member 20. By adjusting the position of the adjusting nut 40 on the adjusting rod 30, the support member 20 can be moved in the up and down direction. When the adjusting nut 40 abuts against the support member 20 and the base 10 abuts against the metal bracket 200, the support member 20 can be fixed and a preload can be applied to the vehicle mount by tightening the adjusting nut 40.

[0056] In this embodiment, by providing a perforation on the other one of the base 10 and the support member 20, and the other end of the adjusting rod 30 passes through the perforation, the pre-positioning of the base 10 and the support member 20 can be effectively realized during the test, thereby effectively improving the working efficiency of the test; by providing the adjusting nut 40 in the test fixture 100, and the adjusting nut 40 is threadedly sleeved on the end of the adjusting rod 30 passing through the perforation, the precise control of the position of the base 10 or the support member 20 can be effectively realized, thereby effectively improving the accuracy of adjusting the position of the base 10 or the support member 20, and the operation is simple and fast.

[0057] In an embodiment of the present utility model, as Figures 1 - 3 shown, the support member 20 is a horizontally arranged flat plate, and the upper end of the adjusting rod 30 is welded to the support member 20. For example, the inner liner 300 of the vehicle mount is fixedly connected to the upper surface of the flat plate. The horizontally arranged flat plate can provide a flat and stable support surface for the vehicle mount, so as to ensure that the preload can be smoothly transmitted to the rubber part 400 of the vehicle mount during the test. In addition, the horizontally arranged flat plate can adapt to vehicle mounts of different sizes and shapes, so as to meet various test requirements.

[0058] For example, the upper end of the adjusting rod 30 is connected to the lower surface of the support member 20 by welding. Welding is a permanent connection method, and the welded joint can withstand high loads and repeated stress cycles, so as to ensure that the joint will not fail during the test.

[0059] In this embodiment, by setting the support member 20 as a horizontally arranged flat plate, not only can the reliability of the vehicle mount under force during the test be effectively improved, but also the versatility and flexibility of the test fixture 100 can be effectively increased; by welding the upper end of the adjusting rod 30 to the support member 20, the structural strength and stiffness of the connection between the adjusting rod 30 and the support member 20 can be effectively increased, thereby effectively increasing the service life of the test fixture 100.

[0060] In an embodiment of the present utility model, as Figures 1 - 3 shown, the test fixture 100 for the vehicle mount further includes: a force measuring device 50, and the force measuring device 50 is configured to detect the acting force applied by the test fixture 100 on the rubber part 400.

[0061] For example, the force measuring device 50 can be a spring dynamometer, and the force measuring device 50 can effectively measure the load applied by the test tooling 100 to the rubber part 400 of the automotive mount in advance. Further, the force measuring device 50 can be connected to a data acquisition system, so as to be able to record the change of force in real time, and further help to analyze the response of the automotive mount under different load conditions.

[0062] In this embodiment, by arranging the force measuring device 50 in the test tooling 100 of the automotive mount, the magnitude of the pre-applied load applied to the automotive mount can be visually displayed, thereby effectively improving the measurement efficiency. In addition, it can also effectively ensure that the pre-applied load applied to the automotive mount is within a predetermined safe range, avoiding damage to the automotive mount used for testing, and thus effectively improving the safety of the test tooling 100.

[0063] In an embodiment of the present utility model, as Figures 1 - 3 shown, the force measuring device 50 includes a force measuring pointer 51. The force measuring device 50 is fixed on the support member 20, and the free end of the force measuring pointer 51 is adapted to abut against the base 10. For example, bolt holes are provided on both the left and right sides of the force measuring device 50, and the force measuring device 50 is fixedly connected to the front end of the support member 20 through fasteners 80 passing through the bolt holes.

[0064] For example, the force measuring pointer 51 can be a slender and elastic metal strip or rod. The upper end of the force measuring pointer 51 is connected to the force measuring device 50, the lower end of the force measuring pointer 51 is the free end, and the lower end of the force measuring pointer 51 abuts against the upper surface of the support steel plate 11 of the base 10. After fixing the base 10 by adjusting the nut 40, the reading of the force measuring device 50 is zeroed. Then, after tightening the adjusting nut 40, the force measuring pointer 51 can accurately measure the magnitude of the load applied to the rubber part 400 of the automotive mount and display the reading through the force measuring device 50.

[0065] In this embodiment, by arranging the force measuring pointer 51 in the force measuring device 50, the magnitude of the load applied to the rubber part 400 of the automotive mount can be accurately measured, so that the magnitude of the pre-applied load applied to the automotive mount can be accurately controlled, and thus the accuracy of the test results can be effectively improved.

[0066] In an embodiment of the present utility model, as Figures 1 - 3 shown, the test tooling 100 of the automotive mount further includes: a vibration simulation mechanism, and the vibration simulation mechanism is connected to the support member 20 for driving the support member 20 to vibrate. For example, the vibration simulation mechanism is arranged on the upper surface of the support member 20 and is bolted to the support member 20. When the vibration simulation mechanism works, it can drive the support member 20 to vibrate, the support member 20 can drive the inner liner 300 of the automotive mount to vibrate, and finally the rubber part 400 of the automotive mount can be driven to vibrate.

[0067] In this embodiment, by providing a vibration simulation mechanism in the test tooling 100 of the vehicle mount, and connecting the vibration simulation mechanism to the support member 20, it can effectively drive the rubber member 400 of the vehicle mount to vibrate, thereby effectively simulating the vibration of the rubber member 400 of the vehicle mount caused by the engine operation and road unevenness in the actual vehicle, and further effectively reducing the error of the test data.

[0068] In an embodiment of the present utility model, as Figures 1 - 3 shown, the vibration simulation mechanism includes: a driving motor 60 and a cam 70. The driving motor 60 is provided on the support member 20, the cam 70 is sleeved on the motor shaft of the driving motor 60 and is eccentrically arranged relative to the motor shaft of the driving motor 60. In the radial direction of the motor shaft, the end of the cam 70 far from the motor shaft forms a contact end 71. The cam 70 is configured to knock on the support member 20 through the contact end 71 during rotation, so that the support member 20 vibrates.

[0069] For example, the driving motor 60 is fixedly connected to the upper surface of the support member 20 by bolts. The left end of the motor shaft is connected to the driving motor 60, and the right end of the motor shaft is connected to the cam 70. Further, the cam 70 is a wheel-shaped part with a non-circular contour, and the center of gravity of the cam 70 is on one side of the axis of the motor shaft.

[0070] When the driving motor 60 drives the cam 70 to rotate through the motor shaft, the non-circular contour of the cam 70 will cause the center of gravity of the cam 70 to periodically deviate from the rotation center, so that the contact end 71 of the cam 70 will generate periodic movement in the radial direction of the motor shaft, so that the contact end 71 of the cam 70 will continuously knock on the support member 20 during rotation, and further cause the support member 20 to vibrate. Thus, it can make the cam 70 drive the rubber member 400 to achieve an alternating pressing - relaxing movement, so as to simulate the vibration loading of the vehicle under different road conditions.

[0071] By adjusting the rotation speed of the driving motor 60, the vibration frequency of the support member 20 can be changed. By changing the shape and eccentricity of the cam 70, the vibration amplitude of the support member 20 can be adjusted. Thus, the vibration of the rubber member 400 of the vehicle mount in the actual vehicle can be effectively simulated according to the test requirements.

[0072] In this embodiment, a driving motor 60 and a cam 70 are arranged in the vibration simulation mechanism. The driving motor 60 is arranged on the support member 20. The cam 70 is sleeved on the motor shaft of the driving motor 60 and is eccentrically arranged relative to the motor shaft of the driving motor 60. In the radial direction of the motor shaft, the end of the cam 70 far from the motor shaft forms a contact end 71. The cam 70 is configured to knock on the support member 20 through the contact end 71 during rotation, so that the support member 20 vibrates, and different modes of vibration can be generated in the rubber part 400 of the vehicle mount according to the test requirements, thereby effectively improving the comprehensiveness of the test data, and further comprehensively evaluating the dynamic performance of the rubber part 400 of the vehicle mount.

[0073] In one embodiment of the present utility model, as Figures 1 - 3 shown, the fixing part is formed with a plurality of fixing holes, and the fixing part is suitable for fixedly connecting the inner liner 300 through fasteners 80. For example, the fixing holes correspond to the fasteners 80 one by one, and the number of fixing holes can be two, three, four, five, six or more. In a specific example, the number of fixing holes is two, and the two fixing holes are arranged at intervals left and right on the fixing part.

[0074] In a specific example, the fastener 80 includes a screw 81, a nut 82 and a gasket 83. The screw 81 passes through the fixing hole. The gasket 83 is located on the lower side of the support member 20 and abuts against the lower surface of the support member 20. The nut 82 is threadedly sleeved on the screw 81, and the nut 82 is located on the lower side of the gasket 83 and abuts against the gasket 83. By tightening the nut 82, the inner liner 300 of the vehicle mount can be fixed on the fixing part, thereby effectively fixing the vehicle mount.

[0075] In this embodiment, by arranging a plurality of fixing holes on the fixing part, it can effectively ensure that the preloading load applied by the test tooling 100 to the vehicle mount is evenly distributed on the inner liner 300, avoiding local stress concentration, thereby effectively improving the stability and reliability of the inner liner 300 during the test process; by using the fasteners 80 to fixedly connect the inner liner 300 to the fixing part, it can effectively realize the quick installation and disassembly of the vehicle mount, facilitate the replacement of different test samples or maintenance work, and thus effectively save the test time.

[0076] As Figures 1 - 3 shown, the ozone-resistant aging test device according to the second aspect embodiment of the present utility model includes a test chamber and the test tooling 100 for the vehicle mount according to the first aspect embodiment of the present utility model above.

[0077] The test chamber has a test cavity, and the test fixture 100 for the automotive mount is disposed in the test cavity. For example, the ozone aging test device can generate and control the concentration of ozone to simulate ozone environments of different intensities. In addition, the ozone aging test device can also control the temperature and humidity in the test cavity. Further, the ozone aging test device may be equipped with sensors and a data acquisition system for real-time monitoring of the environmental parameters in the test cavity and the performance changes of the rubber component 400 of the automotive mount.

[0078] According to the ozone aging test device of the embodiment of the present utility model, by providing the test fixture 100 for the automotive mount in the first aspect embodiment described above, it is possible to effectively simulate the load effect borne by the rubber component 400 of the automotive mount in the actual vehicle state and effectively conduct the ozone aging test on the rubber component 400 of the automotive mount on this basis, thereby effectively improving the accuracy of the ozone aging test results. In addition, the ozone aging test device can be used to test the rubber components 400 of automotive mounts of different structural types, with good compatibility and strong practicability.

[0079] Next, reference will be made to Figures 1 - 3 Describe the ozone aging test device according to a specific embodiment of the present utility model.

[0080] The ozone aging test device includes a test chamber and a test fixture 100 for the automotive mount. The test chamber has a test cavity. The automotive mount includes a metal bracket 200, a lining 300, and a rubber component 400. The lining 300 is arranged inside the metal bracket 200, and the rubber component 400 is connected between the lining 300 and the metal bracket 200. When conducting the ozone aging test on the rubber component 400 of the automotive mount, first install the automotive mount on the test fixture 100, adjust the preload on the rubber component 400 of the automotive mount according to the test requirements, then place the test fixture 100 and the automotive mount in the test cavity of the ozone aging test device, and then the ozone aging test can be carried out.

[0081] The test fixture 100 for the automotive mount includes a base 10, a support member 20, an adjustment rod 30, an adjustment nut 40, a force measuring device 50, a vibration simulation mechanism, and a fastener 80. Among them, a support portion and a perforation are provided on the base 10, a fixing portion is provided on the support member 20, a force measuring pointer 51 is included in the force measuring device 50, and a driving motor 60 and a cam 70 are included in the vibration simulation mechanism.

[0082] When installing the vehicle mount on the test fixture 100, first use the fastener 80 to fix the inner liner 300 of the vehicle mount on the fixing part of the support member 20, and then pass the lower end of the adjusting rod 30 through the perforation, so that the supporting part of the base 10 can support the metal bracket 200 of the vehicle mount, thereby realizing the pre-positioning of the base 10 and the support member 20 and installing the vehicle mount between the base 10 and the support member 20. After that, fixedly install the dynamometer on the front end of the support member 20, so that the lower end of the force measuring pointer 51 just touches the upper surface of the base 10, and then zero the reading of the force measuring device 50.

[0083] Select a suitable cam 70 according to the test requirements, install the cam 70 on the motor shaft of the driving motor 60, and then fixedly install the driving motor 60 equipped with the cam 70 on the upper surface of the support member 20. After that, install an adjusting nut 40 at the lower end of the adjusting rod 30. By tightening the adjusting nut 40, a preload can be applied to the rubber part 400 of the vehicle mount. The magnitude of the preload can be determined by the reading of the force measuring device 50, so that the load effect borne by the vehicle mount under the actual vehicle state can be effectively simulated.

[0084] When conducting the ozone resistance aging test of the vehicle mount, after determining the magnitude of the preload applied to the rubber part 400 of the vehicle mount, adjust the environmental parameters in the test chamber of the ozone resistance aging test device according to the test requirements, then put the test fixture 100 into the test chamber of the ozone resistance aging test device, and then turn on the power supply of the driving motor 60. Set the rotation speed of the driving motor 60 according to the test requirements. The motor drives the cam 70 to rotate, so that the contact end 71 of the cam 70 continuously knocks the support member 20, thereby causing the support member 20 to vibrate, and further causing the rubber part 400 of the vehicle mount to vibrate, so that the vibration of the rubber part 400 of the vehicle mount caused by the engine operation and road unevenness in the actual vehicle can be effectively simulated. After that, the ozone resistance aging test of the vehicle mount can be carried out.

[0085] Through this ozone resistance aging test device, the load effect borne by the rubber part 400 of the vehicle mount under the actual vehicle state can be effectively simulated, and on this basis, the ozone resistance aging test of the rubber part 400 of the vehicle mount can be effectively carried out, thereby effectively improving the accuracy of the ozone resistance aging test results. In addition, the ozone resistance aging test device can be used to test the rubber parts 400 of vehicle mounts of different structural types, with good compatibility and strong practicability.

[0086] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0087] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0088] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0089] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0090] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A test fixture for automobile suspension, the automobile suspension comprising a metal bracket, an inner lining and a rubber member, the inner lining being arranged on the inner side of the metal bracket, the rubber member being connected between the inner lining and the metal bracket, characterized in that: The test tooling comprises: A base, wherein the base is provided with a supporting portion for supporting the metal bracket; A support member is arranged on the upper side of the base, the support member is provided with a fixing portion for fixing the lining, and the position of the support member is adjustable relative to the base in the up and down directions to adjust the force applied to the rubber member.

2. The vehicle suspension test fixture according to claim 1, characterized in that: The test fixture also includes an adjustment rod, which extends in the up-down direction. One end of the adjustment rod is fixed to one of the base and the support member, and the other end of the adjustment rod is movably connected to the other of the base and the support member in the up-down direction.

3. The vehicle suspension test fixture according to claim 2, characterized in that: A through hole is formed on the other of the base and the support member, and the other end of the adjustment rod passes through the through hole. The test fixture further comprises an adjusting nut, which is threadedly sleeved on one end of the adjusting rod passing through the through hole to adjust the relative position of the adjusting rod and the other one of the base and the supporting member.

4. The vehicle suspension test fixture according to claim 2, characterized in that: The support member is a horizontally arranged flat plate, and the upper end of the adjusting rod is connected to the support member by welding.

5. The vehicle suspension test fixture according to any one of claims 1 to 4, characterized in that: Also includes: A force measuring device is configured to detect the force applied by the test fixture on the rubber member.

6. The vehicle suspension test fixture according to claim 5, characterized in that: The force measuring device comprises a force measuring pointer, the force measuring device is fixed on the support member, and the free end of the force measuring pointer is suitable for abutting against the base.

7. The vehicle suspension test fixture according to any one of claims 1 to 4, characterized in that: Also includes: A vibration simulation mechanism is connected to the support member and is used to drive the support member to vibrate.

8. The vehicle suspension test fixture according to claim 7, characterized in that: The vibration simulation mechanism comprises: a driving motor and a cam, wherein the driving motor is arranged on the supporting member, and the cam is sleeved on the motor shaft of the driving motor and is eccentrically arranged relative to the motor shaft of the driving motor. In the radial direction of the motor shaft, one end of the cam away from the motor shaft is formed as a contact end, and the cam is configured to strike the support member through the contact end when rotating to make the support member vibrate.

9. The vehicle suspension test fixture according to any one of claims 1 to 4, characterized in that: The fixing portion is formed with a plurality of fixing holes, and the fixing portion is suitable for being fixedly connected to the liner by a fastener.

10. An ozone aging resistance test device, characterized in that: include: A test box, the test box having a test chamber; The vehicle suspension test fixture according to any one of claims 1 to 9, wherein the test fixture is arranged in the test cavity.

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