An automatic detection device for automobile damping component production

Abstract

The application discloses an automatic detection device for automobile damping assembly production and relates to the technical field of automobile plate spring testing. The detection device comprises a first support, a first support installed on the first support, a second support, a second support installed on the second support, a diameter adjusting mechanism, a main shaft, a sleeve shaft and a pushing assembly, a plurality of sleeve shafts are coaxially sleeved on the main shaft, the position of the main shaft corresponding to the first support is higher than the position of the main shaft corresponding to the second support, the first support and the second support are respectively provided with ports, the sleeve shaft is slidably connected with the corresponding first support and second support through the ports, the pushing assembly is used for pushing the main shaft and the target number of sleeve shafts to the supporting position according to the hole diameter of the ear, and a testing assembly is used for carrying out compression detection on the plate spring body. The application simulates the whole vehicle inclination state of the plate spring, adjusts the outer diameter of the main shaft by means of the sleeve shaft, and adapts to the ear hole size.

Description

Technical Field

[0001] This invention belongs to the field of automotive leaf spring testing technology, specifically relating to an automatic testing device for the production of automotive vibration damping components. Background Technology

[0002] Leaf springs, also known as steel leaf springs, are the core elastic element of automotive suspension and a crucial component of automotive vibration damping systems. They are composed of multiple alloy spring leaves of the same width but slightly different lengths and thicknesses, stacked and secured with clamps. Their function is to connect the vehicle frame and axle via suspension, located between the frame and axle, bearing the impact loads from the wheels on the frame, reducing severe vibrations of the vehicle body, maintaining vehicle stability and adaptability to different road conditions. They achieve buffering, load-bearing, and vibration damping functions through the bending deformation of the spring leaves, and are widely used in light trucks, heavy trucks, dump trucks, and agricultural machinery.

[0003] After production, leaf springs require random fatigue testing to determine the quality of the current batch. Traditional fatigue testing equipment for leaf springs involves directly placing the leaf spring's lug onto a pin, which is then mounted on a rolling bearing. This allows the leaf spring to be placed horizontally and subjected to repeated pressure from a pressing component, resulting in repeated bending. However, the rolling bearing's roller support allows for free sliding without friction constraints, preventing lug hole compression, fretting wear cracks, and other issues. The measured cycle count is far greater than the actual lifespan of the vehicle, making it impossible to reproduce typical lug cracking failures. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic testing device for the production of automotive vibration damping components that has a simple structure and a reasonable design in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An automated testing device for the production of automotive vibration damping components includes:

[0007] The first support and the first bracket fixedly installed on the first support;

[0008] The second support and the second bracket rotatably mounted on the second support;

[0009] The diameter adjustment mechanism is provided in two sets. One set of diameter adjustment mechanism is provided on the first bracket and the second bracket respectively. The diameter adjustment mechanism includes a main shaft, a sleeve shaft and a pushing component. Multiple sleeve shafts are coaxially sleeved on the main shaft. The axis of the main shaft corresponding to the first bracket is higher than the axis of the main shaft corresponding to the second bracket. The first bracket and the second bracket are respectively provided with ports. The sleeve shafts slide with the corresponding first bracket and second bracket through the ports. The pushing component is used to push the main shaft and the target number of sleeve shafts to the supporting position according to the diameter of the ear.

[0010] The test component is used to perform recompression testing on the leaf spring body at the test location.

[0011] As a further optimization of the present invention, the pushing component includes a pushing drive, a push block, an extension plate and a telescopic drive component. The output end of the pushing drive is fixedly provided with a push block, and an extension plate is slidably provided at one end of the push block facing the main shaft. The telescopic drive component is provided in the push block to drive the extension plate to slide back and forth radially along the main shaft. The boundary position of the extension plate after it extends corresponds to the outer diameter position of the outermost sleeve shaft of the target number.

[0012] Limiting cylinders are fixedly installed on the outer side of the first bracket and the outer side of the second bracket, respectively. An end plate is fixedly connected to the outer end of the limiting cylinder. An opening and a clearance groove are provided on the end plate. The push block passes through the end plate through the opening and abuts against the main shaft. The extension plate passes through the end plate through the clearance groove and abuts against the sleeve shaft.

[0013] As a further optimization of the present invention, the telescopic drive assembly includes a rotating drive component, a turntable, and a limiting post. A cavity is provided on the inner side of the push block, and the turntable is rotatably installed in the cavity. The output end of the rotating drive component is connected to the turntable. A limiting groove is provided on the turntable, and a limiting post is fixedly provided at one end of the extension plate facing the turntable. The limiting post slides with the turntable through the limiting groove.

[0014] As a further optimization of the present invention, the limiting groove is arc-shaped, and the distance between the limiting groove and the rotation axis of the turntable gradually increases along the arc direction of the limiting groove.

[0015] As a further optimization of the present invention, a rotating plate is rotatably mounted on the first bracket and the second bracket respectively. The rotating plate is located at the outer end of the main shaft. The rotation axis of the rotating plate on the second bracket is collinear with the rotation axis of the second bracket and the second support. Magnetic blocks are fixedly arranged on the first bracket and the second bracket respectively. The magnetic blocks are correspondingly arranged with the rotating plate. The swing end of the rotating plate is rotatably provided with a limiting shaft. The limiting shaft has a plug-in shaft on the side of the rotating plate facing the main shaft. The main shaft located in the supporting position is rotatably engaged with the rotating plate through the plug-in shaft.

[0016] As a further optimization of the present invention, the test assembly includes a test drive component, an adapter plate, a pressure sensor, a push rod, an adapter seat, and a clamp. The output end of the test drive component is fixedly mounted with a pressure sensor, which is fixedly mounted on the top of the adapter plate. The bottom of the adapter plate is rotatably mounted with a push rod, and the other end of the push rod is rotatably mounted with an adapter seat. The lower end of the adapter seat is provided with a clamp for clamping and mounting the leaf spring body to be tested.

[0017] As a further optimization of the present invention, the clamp includes an upper clamping plate, a lower clamping plate and fastening bolts. The lower end of the adapter is fixedly provided with the upper clamping plate, and the upper clamping plate is fixedly connected to the lower clamping plate by the fastening bolts. The upper clamping plate and the lower clamping plate are used to clamp and place the leaf spring body to be tested.

[0018] As a further optimization of the present invention, a support plate is fixedly provided on the side of the lower clamping plate facing the upper clamping plate, and the support plate abuts against the leaf spring body.

[0019] As a further optimization of the present invention, it also includes a distance adjustment mechanism, which is arranged in pairs and corresponds to the first support and the second support. The distance adjustment mechanism is used to adjust the distance between the first support and the second support according to the distance between the two lugs of the leaf spring body.

[0020] As a further optimization of the present invention, the adjusting mechanism includes a shifting drive, a slide rail, a slide block, and a lead screw. The output end of the shifting drive is connected to the lead screw, which is rotatably mounted on the slide rail. The slide block is threaded onto the lead screw and slidably mounted on the slide rail. The first support is fixedly mounted to one slide block, and the second support is fixedly mounted to another slide block.

[0021] The present invention has at least the following beneficial effects: The automatic testing device for the production of automotive vibration damping components provided by the present invention, by setting a first bracket fixedly installed on a first support, a second bracket rotatably installed on a second support, and a diameter adjustment mechanism, the diameter adjustment mechanism includes a main shaft, a sleeve shaft, and a push assembly. By setting the axis of the main shaft corresponding to the first support to be higher than the axis of the main shaft corresponding to the second support, the device simulates the tilting state of the leaf spring body during vehicle movement, and the lateral friction between the leaf spring plates caused by the dynamic excitation of the road surface, as well as the squeezing and fretting wear caused by the eye hole. In cases such as these, the measured number of cycles is aligned with the actual lifespan of the vehicle to ensure the leaf spring body meets the qualification requirements. Furthermore, for testing leaf spring bodies of different sizes, multiple sleeves fitted on the main shaft can be used to push out the target number of sleeves along with the main shaft according to the hole size, thereby increasing the diameter of the main shaft to accommodate the support of the large-sized coil lugs. This avoids a situation where the diameter of the main shaft and the hole size of the coil lugs differ too much, causing the coil lugs to loosen during repeated pressing of the leaf spring body. This increases the rigid collision and slippage between the coil lugs and the main shaft, failing to accurately simulate the squeezing friction between the coil lug hole and the main shaft, thus affecting the test results.

[0022] In addition, the pusher component is equipped with an extension plate that slides back and forth radially along the main shaft. The boundary position of the extension plate after it extends corresponds to the outer diameter position of the target number of sleeve shafts, so as to receive the large-diameter lugs.

[0023] Furthermore, rotating plates are rotatably mounted on the first and second brackets respectively. The rotating plates are located at the outer end of the main shaft. Before the leaf spring body is moved to the detection position, the rotating plates are first swung outward and fixed by the magnetic block. After the leaf spring body is placed, the limiting shaft is inserted into the rotating plates to insert the insertion shaft into the main shaft, thereby positioning the outer end of the main shaft and preventing the coiled ear from detaching from the main shaft. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is the invention Figure 1 A schematic diagram of the front structure;

[0026] Figure 3 This is the present invention. Figure 1 A schematic diagram of the structure of the middle leaf spring body, the first bracket, the second bracket, and the diameter adjustment mechanism;

[0027] Figure 4 This is a partial cross-sectional view of the first support and the diameter adjustment mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the cooperative structure of the push block and the extension plate of the present invention;

[0029] Figure 6 This is a partial cross-sectional view of the push block, turntable, rotation drive component, and limiting post of the present invention;

[0030] Figure 7 This is a partial structural schematic diagram of the first support and the diameter adjustment mechanism of the present invention;

[0031] Figure 8 This is a partial structural schematic diagram of the second support and the diameter adjustment mechanism of the present invention;

[0032] Figure 9 This is the present invention. Figure 1 Enlarged view of point A in the middle.

[0033] In the diagram: 1. Load-bearing beam; 11. Test drive component; 12. Pressure sensor; 121. Adapter plate; 13. Thrust rod; 14. Adapter seat; 15. Fixture; 151. Upper clamping plate; 152. Lower clamping plate; 153. Support plate; 154. Fastening bolt; 2. Leaf spring body; 21. Roller lug; 3. First bracket; 301. Port; 31. First support; 32. Main shaft; 33. Insertion shaft; 34. Sleeve shaft; 35. Limiting sleeve; 36. End plate; 361. 362. Opening; 37. Relief groove; 38. Push drive component; 39. Push block; 301. Extension plate; 302. Slide groove; 303. Turntable; 384. Limiting post; 385. Limiting groove; 386. Rotation drive component; 4. Second bracket; 41. Second support; 5. Diameter adjustment mechanism; 501. Turning plate; 502. Limiting shaft; 503. Magnetic block; 6. Distance adjustment mechanism; 61. Shift drive component; 62. Slide rail; 63. Guide rail; 64. Slide block; 65. Lead screw. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an automatic testing device for the production of automotive vibration damping components, comprising:

[0037] The first support 31 and the first bracket 3 fixedly installed on the first support 31;

[0038] The second support 41 and the second bracket 4 rotatably mounted on the second support 41;

[0039] The diameter adjustment mechanism 5 is provided in correspondence with the first support 3 and the second support 4. That is, there are two sets of diameter adjustment mechanisms 5, one set on the first support 3 and one set on the second support 4. (Continue reading) Figure 4 The adjusting mechanism 5 includes a main shaft 32, sleeve shafts 34, and a pushing assembly. Multiple sleeve shafts 34 are coaxially sleeved on the main shaft 32. The axis of the main shaft 32 corresponding to the first bracket 3 is higher than the axis of the main shaft 32 corresponding to the second bracket 4. The first bracket 3 and the second bracket 4 are respectively provided with ports 301. The sleeve shafts 34 slide with the corresponding first bracket 3 and second bracket 4 through the ports 301. The pushing assembly is used to push the main shaft 32 and the target number of sleeve shafts 34 to the supporting position according to the diameter of the ear 21.

[0040] The test component is used to perform a recompression test on the leaf spring body 2 at the test location.

[0041] It should be noted that, as Figure 3 As shown, the leaf spring body 2 has lugs 21 at both ends. During actual vehicle assembly, in order to make the car have an understeer tendency, the two lugs 21 of the leaf spring body 2 have a large height difference, so that the center line of the two lugs 21 of the leaf spring body 2 forms a certain angle with the horizontal line, which causes a certain difference between the dynamic stiffness and static stiffness of the leaf spring body 2. Therefore, in the above embodiment, the axis of the main shaft 32 corresponding to the first bracket 3 is higher than the axis of the main shaft 32 corresponding to the second bracket 4. After the leaf spring body 2 is placed in the test position, the two lugs 21 are inserted into the corresponding main shaft 32, so that the leaf spring body 2 is in an inclined state. This simulates the inclined state of the leaf spring body 2 during vehicle movement and the situation of lateral friction between the leaf springs of the leaf spring body 2 under the influence of dynamic road surface excitation, as well as the situation of compression and fretting wear generated by the lug holes 21, so that the measured cycle number is close to the actual life of the whole vehicle, ensuring the qualification requirements of the leaf spring body 2.

[0042] Furthermore, for tests on leaf spring bodies 2 of different sizes, the diameter of the lugs 21 of leaf spring bodies 2 of different sizes is also different. Therefore, through the above embodiment, by means of multiple sleeves 34 sleeved on the main shaft 32, the target number of sleeves 34 can be pushed out along with the main shaft 32 according to the size of the hole, so as to increase the diameter of the main shaft 32, thereby adapting to the support of the large-sized lugs 21, avoiding the difference between the diameter of the main shaft 32 and the hole size of the lugs 21 being too large. During the repeated pressing of the leaf spring body 2, the lugs 21 loosen, and the rigid collision and slippage between the lugs 21 and the main shaft 32 increase. This cannot well simulate the squeezing friction between the hole of the lugs 21 and the main shaft 32, affecting the test results.

[0043] It should be noted that the target quantity refers to the number of sleeve shafts 34 that need to be pushed to the support station simultaneously with the main spindle 32 to match the current diameter of the ear 21. The main spindle 32 is the basic minimum support diameter, and the overall support outer diameter increases with each additional sleeve shaft 34. Different ear 21 diameters correspond to different numbers of sleeve shafts 34 that need to be pushed out. The number of sleeve shafts 34 that need to be pushed out under this matching condition is the target quantity.

[0044] For example, see [link to relevant documentation]. Figure 1 and Figure 2 The test assembly includes a test drive unit 11, an adapter plate 121, a pressure sensor 12, a push rod 13, an adapter seat 14, and a clamp 15. The output end of the test drive unit 11 is fixedly mounted with the pressure sensor 12, which is fixedly mounted on the top of the adapter plate 121. The bottom of the adapter plate 121 is rotatably mounted with the push rod 13, and the other end of the push rod 13 is rotatably mounted with the adapter seat 14. The lower end of the adapter seat 14 is provided with a clamp 15, which is used to clamp and mount the leaf spring body 2 to be tested.

[0045] For example, such as Figure 1 As shown, the test drive component 11 is installed on the load-bearing beam 1. The test drive component 11 is a hydraulic telescopic cylinder or an electric telescopic cylinder, which is not limited here. The pressure sensor 12 drives the adapter plate 121 to move up and down. The thrust rod 13 pushes the clamp 15 down repeatedly through the adapter seat 14. Thus, with the repeated pressing of the clamp 15, the leaf spring body 2 is repeatedly bent and deformed to perform fatigue testing. The pressure sensor 12 is used to collect load data.

[0046] For example, see [link to relevant documentation]. Figure 2 The clamp 15 includes an upper clamping plate 151, a lower clamping plate 152 and a fastening bolt 154. The lower end of the adapter 14 is fixedly provided with the upper clamping plate 151. The upper clamping plate 151 is fixedly connected to the lower clamping plate 152 by the fastening bolt 154. The upper clamping plate 151 and the lower clamping plate 152 are used to clamp and place the leaf spring body 2 to be tested.

[0047] A support plate 153 is fixedly provided on the side of the lower clamping plate 152 facing the upper clamping plate 151. The support plate 153 abuts against the spring sheet of the leaf spring body 2. The support plate 153 disperses the downward pressure load and prevents the straight lower clamping plate 152 from directly damaging the bent spring sheet surface.

[0048] For example, the leaf spring body 2 is moved to the detection position by means of a conveying device, such as a robotic arm or a conveying trolley. Then, the lower clamping plate 152 is placed under the leaf spring body 2, and the fastening bolt 154 is passed through the lower clamping plate 152 and the upper clamping plate 151 and locked and fixed, so that the support plate 153 abuts against the lower spring of the leaf spring body 2. The top surface of the support plate 153 is an arc surface, and the curvature of the arc surface of the support plate 153 is greater than the bending curvature of the lower spring of the leaf spring body 2 in the initial state.

[0049] For example, see [link to relevant documentation]. Figure 4 and Figure 5 The pushing assembly includes a pushing drive 37, a push block 38, an extension plate 381, and a telescopic drive assembly. The push block 38 is fixedly provided at the output end of the pushing drive 37. The extension plate 381 is slidably provided at one end of the push block 38 facing the main shaft 32. The telescopic drive assembly is provided in the push block 38 and is used to drive the extension plate 381 to slide radially back and forth along the main shaft 32. The boundary position of the extension plate 381 after it extends corresponds to the outer diameter position of the outermost sleeve shaft 34 of the target number.

[0050] Among them, a limiting cylinder 35 is fixedly installed on the outer side of the first bracket 3 and the outer side of the second bracket 4 respectively. An end plate 36 is fixedly connected to the outer end of the limiting cylinder 35. An opening 361 and a relief groove 362 are provided on the end plate 36. The push block 38 passes through the end plate 36 through the opening 361 and abuts against the main shaft 32. The extension plate 381 passes through the end plate 36 through the relief groove 362 and abuts against the sleeve shaft 34.

[0051] In the initial state, both the main shaft 32 and the sleeve shaft 34 are housed in the limiting sleeve 35 to prevent them from being bumped and worn when not being inspected, thus extending the service life of the support components. When inspection is required, the pusher 37 drives the push block 38 to move the main shaft 32 outward. For the leaf spring body 2 with a larger hole diameter in the lug 21, the extension plate 381 can be extended outward using the telescopic drive assembly before the main shaft 32 moves outward. The boundary position of the extended plate 381 after it extends corresponds to the outer diameter position of the target number of sleeve shafts 34. Figure 5The diagram illustrates the situation with two extending plates 381. The two extending plates 381 move outwards synchronously to symmetrically increase the pushing range of the pusher block 38. That is, while the pusher block 38 pushes the main shaft 32, the extended portion of the extending plate 381 abuts against the sleeve shaft 34, pushing the corresponding sleeve shaft 34 and the main shaft 32 outwards together to receive the large-diameter lug 21. The sleeve shaft 34, which does not need to be received, remains inside the limiting sleeve 35. Furthermore, the extended sleeve shaft 34 is then... (The text abruptly ends here, so the translation stops as well.) Figure 4 (For example, the support of orientation).

[0052] In other embodiments, the number of extension plates 381 is three, four, or five, and this is not limited here.

[0053] For example, see [link to relevant documentation]. Figure 5 and Figure 6 The telescopic drive assembly includes a rotary drive component 386, a turntable 383, and a limiting post 384. A cavity is formed on the inner side of the push block 38, and the turntable 383 is rotatably mounted within the cavity. The output end of the rotary drive component 386 is drively connected to the turntable 383. A limiting groove 385 is formed on the turntable 383. A limiting post 384 is fixedly provided at one end of the extension plate 381 facing the turntable 383, and the limiting post 384 slides with the turntable 383 through the limiting groove 385. For example, the rotary drive component 386 is a motor. Driven by the rotary drive component 386, the turntable 383 rotates. Under the constraint of the limiting groove 385, the limiting post 384 drives the extension plate 381 to slide along a sliding groove 382, ​​which is formed on the push block 38.

[0054] Continue reading Figure 6 The limiting groove 385 is arc-shaped, and the distance between the limiting groove 385 and the rotation axis of the turntable 383 gradually increases along the arc direction of the limiting groove 385. The arc-shaped limiting groove 385 smoothly abuts against the limiting post 384, and the circular motion of the turntable 383 is smoothly transformed into the linear radial translation of the extension plate 381.

[0055] For example, see [link to relevant documentation]. Figure 1 The device also includes a distance adjustment mechanism 6, which is arranged in pairs and corresponds to the first support 31 and the second support 41. The distance adjustment mechanism 6 is used to adjust the distance between the first support 31 and the second support 41 according to the distance between the two lugs 21 of the leaf spring body 2.

[0056] Continue reading Figure 3 and Figure 4A rotating plate 501 is rotatably mounted on the first bracket 3 and the second bracket 4 respectively. The rotating plate 501 is located at the outer end of the main shaft 32. The rotation axis of the rotating plate 501 on the second bracket 4 is collinear with the rotation axis of the second bracket 4 and the second support 41. A magnetic block 503 is fixedly mounted on the first bracket 3 and the second bracket 4 respectively. The magnetic block 503 is correspondingly mounted with the rotating plate 501. A limit shaft 502 is rotatably mounted on the swing end of the rotating plate 501. The limit shaft 502 has a plug-in shaft 33 on the side of the rotating plate 501 facing the main shaft 32. The main shaft 32 located in the support position is rotatably engaged with the rotating plate 501 through the plug-in shaft 33.

[0057] It should be noted that a magnetic suction part is embedded on the side of the rotating plate 501 facing the main shaft 32. Before the leaf spring body 2 is moved to the detection position, the rotating plate 501 is swung until the magnetic suction part is magnetically attracted to the magnetic suction block 503. At this time, the outer end of the main shaft 32 is exposed. After adjusting the position of the main shaft 32 and the sleeve shaft 34 and placing the leaf spring body 2, the rotating plate 501 is reset and rotated down, and the limiting shaft 502 is inserted into the rotating plate 501 so that the insertion shaft 33 is inserted into the main shaft 32 to position the outer end of the main shaft 32.

[0058] It should be noted that during the loading and unloading of the leaf spring body 2, the magnetic attraction between the magnetic part of the rotating plate 501 and the magnetic block 503 is sufficient to resist the slight vibration of the equipment caused by the loading and unloading of the leaf spring body 2. That is, the rotating plate 501 will not fall back on its own due to slight vibration of the equipment, so as to ensure the smooth loading and unloading process of the leaf spring body 2. Furthermore, the cooperation between the rotating plate 501 and the main shaft 32 limits one coil ear 21 between the first bracket 3 and the rotating plate 501, and limits the other coil ear 21 between the second bracket 4 and the corresponding rotating plate 501, preventing the coil ear 21 from detaching from the main shaft 32.

[0059] Continue reading Figure 9 The adjusting mechanism 6 includes a shifting drive 61, a slide rail 62, a slide block 64, and a lead screw 65. The output end of the shifting drive 61 is connected to the lead screw 65, which is rotatably mounted on the slide rail 62. The slide block 64 is threaded onto the lead screw 65 and slidably mounted on the slide rail 62. The first support 31 is fixedly mounted to one slide block 64, and the second support 41 is fixedly mounted to the other slide block 64. Since the length and thickness of the leaf springs 2 of different models are different, the distance between the two corresponding lugs 21 is also different. The adjusting mechanism 6 adjusts this distance by activating the two shifting drive 61s, for example, the shifting drive 61 is a drive motor. The lead screw 65 drives the slide block 64 to slide along the slide rail 62 to adjust the distance between the corresponding first support 31 and second support 41 on the slide block 64, thereby ultimately adjusting the distance between the two main shafts 32.

[0060] It should be noted that further reading is required. Figure 9 A guide rail 63 is fixedly installed on the slide rail 62, and the slide block 64 slides with the slide rail 62 through the guide rail 63 to ensure the sliding accuracy and stability of the slide block 64.

[0061] It should be noted that the automatic detection device for the production of automotive vibration damping components, when in use, drives the displacement drive 61 according to the distance between the two lugs 21 of the leaf spring body 2, so that the lead screw 65 drives the slide 64, causing the first support 31 and the second support 41 to shift, and finally realizes the adjustment of the distance between the two main shafts 32.

[0062] Open the two rotating plates 501 and fix them in place by magnetic attraction block 503. Determine the target number of sleeve shafts 34 required under the hole diameter of the ear 21. Start the two rotating drive components 386, turntable 383 rotates, limit post 384 is constrained by limit groove 385, causing extension plate 381 to move outward to match the outer diameter of the target number of sleeve shafts 34. Then, driven by push drive component 37, push block 38 and extension plate 381 push the main shaft 32 and the target number of sleeve shafts 34 outward, and move the leaf spring body 2 to the detection position. At this time, the ear 21 is supported on the sleeve shaft 34.

[0063] Then, the rotating plate 501 is lowered, and the spindle 32 is fixed by inserting the plug shaft 33 into it;

[0064] Subsequently, driven by the test drive component 11, the pressure sensor 12 transmits the force downward through the adapter plate 121, the push rod 13 and the adapter seat 14, so that the clamp 15 presses the leaf spring body 2 again to perform fatigue testing on the leaf spring body 2.

[0065] After the test is completed, remove the limiting shaft 502, move the rotating plate 501 and fix it with the help of the magnetic block 503, and remove the leaf spring body 2. It should be noted that when removing the leaf spring body 2, the leaf spring body 2 is still supported by the conveying equipment first, and the lower clamping plate 152 is disassembled and moved outward along the axis of the main shaft 32 to remove the leaf spring body 2, and replace it with another leaf spring body 2 from the same batch for fatigue testing.

[0066] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An automatic testing device for the production of automotive vibration damping components, characterized in that, include: The first support and the first bracket fixedly installed on the first support; The second support and the second bracket rotatably mounted on the second support; The diameter adjustment mechanism is provided in two sets. One set of diameter adjustment mechanism is provided on the first bracket and the second bracket respectively. The diameter adjustment mechanism includes a main shaft, a sleeve shaft and a pushing component. Multiple sleeve shafts are coaxially sleeved on the main shaft. The axis of the main shaft corresponding to the first bracket is higher than the axis of the main shaft corresponding to the second bracket. The first bracket and the second bracket are respectively provided with ports. The sleeve shafts slide with the corresponding first bracket and second bracket through the ports. The pushing component is used to push the main shaft and the target number of sleeve shafts to the supporting position according to the diameter of the ear. The test component is used to perform recompression testing on the leaf spring body at the test location.

2. The automatic testing device for automobile vibration damping component production according to claim 1, characterized in that, The pushing assembly includes a pushing drive, a push block, an extension plate, and a telescopic drive assembly. The output end of the pushing drive is fixedly provided with a push block, and an extension plate is slidably provided at one end of the push block facing the main shaft. The telescopic drive assembly is provided in the push block to drive the extension plate to slide back and forth radially along the main shaft. The boundary position of the extension plate after it extends corresponds to the outer diameter position of the outermost sleeve shaft of the target number. Limiting cylinders are fixedly installed on the outer side of the first bracket and the outer side of the second bracket, respectively. An end plate is fixedly connected to the outer end of the limiting cylinder. An opening and a clearance groove are provided on the end plate. The push block passes through the end plate through the opening and abuts against the main shaft. The extension plate passes through the end plate through the clearance groove and abuts against the sleeve shaft.

3. The automatic testing device for automobile vibration damping component production according to claim 2, characterized in that, The telescopic drive assembly includes a rotating drive component, a turntable, and a limiting post. A cavity is provided on the inner side of the push block, and the turntable is rotatably installed in the cavity. The output end of the rotating drive component is connected to the turntable. A limiting groove is provided on the turntable. A limiting post is fixedly provided at the end of the extension plate facing the turntable, and the limiting post slides with the turntable through the limiting groove.

4. The automatic testing device for automobile vibration damping component production according to claim 3, characterized in that, The limiting groove is arc-shaped, and the distance between the limiting groove and the center line of the turntable rotation gradually increases along the arc direction of the limiting groove.

5. The automatic testing device for automobile vibration damping component production according to claim 4, characterized in that, A rotating plate is rotatably mounted on the first bracket and the second bracket respectively. The rotating plate is located at the outer end of the main shaft. The rotation axis of the rotating plate on the second bracket is collinear with the rotation axis of the second bracket and the second support. Magnetic blocks are fixedly installed on the first bracket and the second bracket respectively. The magnetic blocks are correspondingly arranged with the rotating plate. The swing end of the rotating plate is provided with a limit shaft. The limit shaft has a plug shaft on the side of the rotating plate facing the main shaft. The main shaft located in the support position is rotatably engaged with the rotating plate through the plug shaft.

6. The automatic testing device for automobile vibration damping component production according to claim 5, characterized in that, The test assembly includes a test drive unit, an adapter plate, a pressure sensor, a push rod, an adapter base, and a clamp. The output end of the test drive unit is fixedly mounted with a pressure sensor, which is fixedly mounted on the top of the adapter plate. The bottom of the adapter plate is rotatably mounted with a push rod, and the other end of the push rod is rotatably mounted with an adapter base. The lower end of the adapter base is provided with a clamp for holding and mounting the leaf spring body to be tested.

7. An automatic testing device for the production of automotive vibration damping components according to claim 6, characterized in that, The clamp includes an upper clamping plate, a lower clamping plate, and fastening bolts. The lower end of the adapter is fixedly provided with the upper clamping plate, which is fixedly connected to the lower clamping plate by the fastening bolts. The upper clamping plate and the lower clamping plate are used to clamp and place the leaf spring body to be tested.

8. An automatic testing device for the production of automotive vibration damping components according to claim 7, characterized in that, A support plate is fixedly installed on the side of the lower clamping plate facing the upper clamping plate, and the support plate abuts against the leaf spring body.

9. An automatic testing device for the production of automotive vibration damping components according to claim 2, characterized in that, It also includes a distance adjustment mechanism, which is set in pairs and corresponds to the first support and the second support. The distance adjustment mechanism is used to adjust the distance between the first support and the second support according to the distance between the two lugs of the leaf spring body.

10. An automatic testing device for the production of automotive vibration damping components according to claim 9, characterized in that, The adjusting mechanism includes a shifting drive, a slide rail, a slide block, and a lead screw. The output end of the shifting drive is connected to the lead screw, which is rotatably mounted on the slide rail. A slide block is threaded onto the lead screw and slidably mounted on the slide rail. The first support is fixedly mounted to one slide block, and the second support is fixedly mounted to another slide block.

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