A vibration testing device for small parts of an automobile
By linking and limiting the drive and transmission components and designing the hoisting components, the problems of low vibration amplitude adjustment accuracy and low manual operation efficiency in existing vibration testing devices for small automotive parts have been solved, realizing a stable and automated vibration testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
- Filing Date
- 2026-03-23
- Publication Date
- 2026-06-12
Smart Images
Figure CN122192675A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vibration testing technology for automotive parts, and more particularly to a vibration testing device for small automotive parts. Background Technology
[0002] Vibration performance testing of small components such as automotive brake disc kits is a crucial step in ensuring product assembly reliability and usage safety during the automotive parts manufacturing process. The vibration test results directly determine whether the components meet the standards for vehicle use.
[0003] Currently, vibration testing equipment used for small automotive parts in the industry still has technical defects in actual use: the vibration amplitude adjustment structure is complex in design, the adjustment operation steps are cumbersome, and the adjustment accuracy is low. It cannot accurately match the vibration amplitude requirements under different test conditions, making it difficult to meet diverse test and inspection needs. Most devices are not equipped with dedicated automated hoisting structures, and the loading and unloading of brake disc kits all rely on manual handling. This not only results in high labor intensity for operators, but also easily causes parts to be bumped and damaged during manual handling. At the same time, the low efficiency of manual operation seriously restricts the progress of industrialized batch vibration testing. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vibration testing device for small automotive parts.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vibration testing device for small automotive parts, comprising a base plate, a driving assembly and a transmission assembly mounted on the top of the base plate, a plurality of guide rods mounted on the base plate, a vibration plate slidably connected to the guide rods, the transmission assembly connected to the vibration plate, and a limiting assembly used to limit the automotive brake disc assembly to be tested on the vibration plate by means of a limiting assembly. The driving assembly drives the transmission assembly to cause the vibration plate to vibrate up and down on the outer surface of the guide rods. The vibration of the vibration plate on the outer surface of the guide rods causes the automotive brake disc assembly to be tested, which is limited by the limiting assembly, to undergo a vibration test. A lifting assembly is mounted on the base plate for lifting the tested or untested automotive brake disc assembly from the vibration plate or lifting it onto the vibration plate.
[0006] The effects achieved by the above components are as follows: the linkage between the drive component and the transmission component provides stable vibration power to the vibrating plate; the guide rod guides and limits the movement trajectory of the vibrating plate to prevent it from deviating and ensure the stability of the vibration test; the limiting component can firmly fix the brake disc assembly to prevent parts from loosening during the test; the hoisting component replaces manual labor to complete the hoisting of the brake disc assembly, reducing the intensity of manual operation and realizing the automation of loading and unloading of the brake disc assembly. Overall, the operation process of vibration testing is more coherent and the test efficiency is improved.
[0007] Preferably, the drive assembly includes a motor, the output shaft of which is connected to a synchronous pulley via a coupling, and two symmetrical protrusions are connected on the base plate on one side of the motor. A shaft is rotatably connected between the two protrusions, and a synchronous pulley is also mounted on one end of the shaft. The two synchronous pulleys are connected by a synchronous belt drive, and a worm gear is fixedly connected to the shaft.
[0008] The effects achieved by the above components are as follows: using the motor as a power source, it outputs a stable driving force; the synchronous pulley and synchronous belt transmission method ensures the synchronicity and stability of power transmission, reduces power loss, and has low noise during transmission; the convex plate provides a stable rotational support for the shaft, ensuring the smoothness of shaft rotation; the worm gear realizes the reversal of power transmission, provides power connection for the movement of subsequent transmission components, and makes the power transmission of the drive components more reasonable.
[0009] Preferably, the transmission assembly is provided with a bearing mounted on a base plate, the base plate is rotatably connected to a rotating rod by means of the bearing, a worm wheel that meshes with a worm gear is installed on the rotating rod, a turntable is installed at the end of the rotating rod away from the bearing, and an adjusting component is installed on the turntable to adjust the amplitude of the vibration plate vibrating up and down on the outer surface of the guide rod.
[0010] The effects achieved by the above components are as follows: the bearings provide smooth support for the rotation of the rotating rod, significantly reducing the frictional resistance during rotation and minimizing component wear; the meshing of the worm and worm wheel enables vertical reversal of power, converting the horizontal rotation of the shaft into the vertical rotation of the rotating rod, adapting to the power requirements of the up-and-down vibration of the vibrating plate; the turntable provides a mounting base for the adjusting components, while simultaneously converting the rotation of the rotating rod into the reciprocating traction motion of the adjusting components; the setting of the adjusting components allows the vibration amplitude of the vibrating plate to be adjusted, meeting the vibration test requirements under different working conditions and improving the versatility of the device.
[0011] Preferably, the adjusting component includes a nut block, a traction rod, a ball shaft, and a threaded rod. Ball shafts are mounted on both the turntable and the nut block via connecting seats. A traction rod is connected between the two ball shafts. A threaded rod is rotatably connected to the bottom of the vibrating plate via a connecting seat. The threaded rod is threadedly connected to the nut block.
[0012] The effects achieved by the above components are as follows: the ball joint allows both ends of the traction rod to rotate flexibly, adapting to the angle changes during the rotation of the turntable, ensuring the smooth power transmission of the traction rod and avoiding jamming; the threaded engagement between the threaded rod and the nut block provides a structural basis for adjusting the position of the nut block. By rotating the threaded rod, the position of the nut block can be changed, thereby adjusting the traction angle of the traction rod and realizing the adjustment of the vibration amplitude of the vibrating plate. The adjustment method is simple, requires no complicated operation, and has high precision.
[0013] Preferably, the bottom of the vibration plate is provided with a sliding groove, the nut block is slidably connected in the sliding groove, the top of the vibration plate is provided with a placement groove, and a limit component is installed inside the placement groove to limit the automotive brake disc kit to be tested.
[0014] The effects achieved by the above components are as follows: the slide groove guides and circumferentially limits the nut block, preventing it from rotating circumferentially with the rotation of the threaded rod, allowing it to move only in a straight line along the slide groove, ensuring the accuracy of the nut block position adjustment, and thus ensuring the precision of vibration amplitude adjustment; the placement groove provides a dedicated installation space for the limiting component, making the installation of the limiting component more stable, and at the same time, it plays a preliminary placement and limiting role for the brake disc kit, preventing the parts from shifting during clamping and improving clamping efficiency.
[0015] The drive motor, via a synchronous belt and pulley, rotates a shaft. The shaft, via a worm and worm wheel, rotates a rotating rod. The rotating rod rotates a turntable. The turntable, via a traction rod, drives a nut block to reciprocate up-and-down vibration of the vibrating plate on the outer surface of the guide rod. When the rotation amplitude needs to be adjusted, the threaded rod is rotated. Due to the limiting effect of the sliding groove, the nut block moves on the outer surface of the threaded rod. At this time, the traction rod tilts at an angle via the ball joints at both ends. This tilting of the traction rod causes the vibrating plate to change its up-and-down vibration amplitude on the outer surface of the guide rod, thus adjusting the vibration amplitude of the vibrating plate.
[0016] Preferably, the limiting component has a vertical rod, which is installed in the placement groove. A base is installed at the bottom of the vertical rod, and several clamping plates are hinged on the base. The clamping plates have grooves. A slip ring is fitted on the vertical rod. The outer surface of the slip ring is hinged with a number of traction plates that are the same as the number of clamping plates. The end of the traction plate away from the slip ring is inserted into the groove of the clamping plate and hinged by a rotating shaft. An elastic element is provided on the vertical rod to keep the return position unchanged after the slip ring moves.
[0017] The effects achieved by the above components are as follows: the base provides a stable hinge support for the clamping plate, ensuring the stability of the clamping plate's opening, closing, and rotation; the linkage between the slip ring and the traction plate enables the synchronous opening and closing of multiple clamping plates, and the opening and closing of the clamping plates can be completed simply by moving the slip ring, making operation convenient; it can be adapted to clamping automotive brake disc kits with different hole diameters, improving the versatility of the limiting components; the elastic element can keep the slip ring in its reset position, ensuring the clamping and fixing effect of the clamping plate on the brake disc kit and preventing parts from loosening during the test.
[0018] Preferably, the elastic element is a first spring sleeved on the outer surface of the vertical rod, and the two ends of the first spring are respectively connected to the slip ring and the vertical rod.
[0019] The slip ring is stretched, causing the traction plate to move. At this time, the first spring is stretched, and the traction plate pulls the clamping plate, causing one end of the clamping plate to rotate on the base and move towards the vertical rod. Then, the round hole in the middle of the car's brake disc assembly is placed over the clamping plate. Then, the slip ring is released, and the rebound force of the first spring causes the slip ring to return to its original position. The return of the slip ring then pulls the traction rod towards the clamping plate, causing the clamping plate to open outwards towards the vertical rod. At this time, the clamping plate is locked onto the inner wall of the round hole in the middle of the brake disc assembly, thus fixing the brake disc assembly in place.
[0020] The effects achieved by the above components are as follows: the No. 1 spring uses its own elastic rebound force to realize the automatic reset of the slip ring, eliminating the need for manual reset of the slip ring and simplifying the clamping operation of the brake disc assembly; the No. 1 spring is sleeved on the outer surface of the vertical rod, with a compact structure and uniform force distribution, which can continuously provide a reset force for the slip ring, ensuring the firmness of the clamping plate in holding the brake disc assembly; the spring structure is inexpensive, easy to purchase, and easy to replace and maintain, reducing the operating cost of the device.
[0021] Preferably, the hoisting assembly is provided with a support arm, which is rotatably mounted on the base plate by means of a bearing seat. An assembly plate is mounted on the support arm, and an electric push rod is mounted on the assembly plate. A clamping member is connected to the output rod of the electric push rod for clamping and hoisting the automotive brake disc assembly.
[0022] The effects achieved by the above components are as follows: the bearing seat allows the support arm to rotate flexibly around the base plate, realizing the ° adjustment of the clamping position, accurately aligning with the position of the brake disc assembly, and adapting to different loading and unloading requirements; the assembly plate provides a stable mounting base for the electric actuator, ensuring the stability of the electric actuator during operation; the electric actuator, as a power source, provides stable power for the lifting and opening / closing of the clamping component, realizing automated drive; the clamping component can firmly clamp the brake disc assembly, ensuring the safety of the components during lifting and preventing them from falling and being damaged.
[0023] Preferably, the assembly plate has a guide groove, a guide block is slidably connected in the guide groove, an electric actuator is mounted on the guide block, and the output rod of the electric actuator passes through the guide block and extends to the outside of the guide block.
[0024] The effects achieved by the above components are as follows: the sliding fit between the guide groove and the guide block allows the electric push rod to move horizontally along the assembly plate, thereby driving the clamping parts to adjust their horizontal position, further improving the flexibility of the clamping parts in lifting, and enabling precise alignment with brake disc kits in different positions, avoiding the problem of unstable clamping due to positional deviation; the guide block plays a guiding and limiting role in the movement of the electric push rod, ensuring the smoothness and accuracy of the horizontal movement of the electric push rod.
[0025] Preferably, the clamping member includes a pull rod connected to the electric actuator rod. A connecting block is connected to the bottom of the pull rod. The two ends of the connecting block are hinged to a first hinge plate via a pivot. A bearing plate is hinged to the end of each of the first hinge plates away from the connecting block. A sliding plate is fitted on the pull rod. A connecting plate connected to the bearing plate is hinged to both ends of the sliding plate. A limit post is installed on one of the bearing plates, and a limit plate is rotatably connected to the other bearing plate. One end of the limit plate has a slot for engaging with the limit post. A rotating rod is rotatably connected to the bearing plate. A cam is connected to one end of the rotating rod, and a clamping clamp is connected to the other end of the rotating rod. A protrusion is provided on the bearing plate for limiting the rotation of the cam. A second spring is fitted on the outer surface of the pull rod, with its two ends connected to the sliding plate and the connecting block, respectively.
[0026] The aforementioned components achieve the following effects: The electric actuator drives the pull rod to rise and fall, coordinating with the linkage of the first hinge plate, connecting plate, and sliding plate to achieve automatic opening and closing of the two bearing plates, thereby driving the clamping clamp to clamp and release the brake disc assembly, resulting in a high degree of automation. The cooperation between the limiting post and the limiting plate can pre-limit the bearing plate, preventing excessive opening and closing and improving clamping stability. The cooperation between the cam and the convex post restricts the rotation direction of the clamping clamp, ensuring that the clamping clamp always faces downwards during hoisting, effectively preventing the brake disc assembly from falling off. The second spring uses elastic rebound force to accelerate the separation of the bearing plate, allowing the clamping clamp to quickly detach from the brake disc assembly, improving unloading efficiency. The overall clamping structure design makes the clamping and hoisting of the brake disc assembly safer and more efficient, adaptable to brake disc assemblies with different outer diameters.
[0027] When it is necessary to lift the car brake disc assembly, the limiting plate is rotated to disengage the slot on the limiting plate from the limiting post, thus freeing the two support plates from positional constraints. The electric actuator is then activated, moving the pull rod upwards. This pull rod, in turn, moves the clamping clamps on the two support plates upwards. Due to the limiting effect of the cam's protruding post, the cam rotates, ensuring the bottom of the clamping clamp always faces downwards. The support rod is then pushed, causing it to rotate and move the clamping clamp to the brake disc assembly. The clamping clamp is then slid, sliding within the guide groove via the guide block, allowing... With the two clamping clamps positioned on the outer circumference of the brake disc assembly, the electric actuator is activated. As the lever rises, the first traction plate pulls the bearing plate closer together. At this point, the second spring is compressed, causing the clamping clamps to hold the brake disc on its outer circumference. When it is necessary to lower the brake disc assembly, the lever moves downward with the electric actuator. The first traction rod separates the bearing plate, and the rebound force of the second spring causes the sliding plate to slide, driving the connecting plate and accelerating the separation of the bearing plate. This allows the clamping clamps to detach from the outer surface of the brake disc assembly.
[0028] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the drive assembly and transmission assembly adopt a composite transmission method of synchronous pulley to synchronous belt, worm gear and then worm wheel. This not only ensures the synchronicity and stability of power transmission and greatly reduces energy loss in the power transmission process, but also realizes the reversible transmission of power, perfectly adapting to the power requirements of the reciprocating vibration of the vibrating plate. At the same time, the guide rod accurately guides and limits the motion trajectory of the vibrating plate, completely avoiding the deviation of the vibrating plate during vibration, providing a solid guarantee for the accuracy of vibration test data and the reliability of test results.
[0029] 2. In this invention, a dedicated amplitude adjustment component is provided. By rotating the threaded rod, the nut block can be moved linearly along the slide groove through the threaded engagement, thereby changing the tilt angle of the traction rod and realizing flexible adjustment of the vibration amplitude of the vibrating plate. The entire adjustment process is simple and convenient to operate, without disassembling any parts, and the adjustment accuracy is high. It can accurately match the vibration amplitude requirements under different test conditions, effectively improving the adaptability of the device to the working conditions.
[0030] 3. In this invention, the limiting component adopts an opening and closing clamping plate linkage structure. With the elastic reset effect of the first spring, the clamping plate can be closed simply by pulling the slip ring upward, and the clamping plate can be automatically opened by the spring rebound force when the slip ring is released, thus completing the firm fixation of the brake disc assembly. The clamping and loosening operations are very simple. At the same time, this limiting structure can be adapted to brake disc assemblies with different hole diameters without the need to change special fixtures, which greatly reduces the auxiliary cost of the test. Moreover, the clamping plate and the inner wall of the circular hole of the brake disc assembly are tightly abutted, which can effectively prevent the parts from loosening or shifting during the test, further improving the stability of the test.
[0031] 4. In this invention, an integrated automated hoisting assembly is provided. The support arm can rotate flexibly around the base plate, and the electric push rod can slide horizontally along the guide groove through the guide block, realizing 360° rotation and linear movement of the clamping component in the horizontal direction. It can accurately align the brake disc kit at different positions, and the hoisting position adjustment is highly flexible. Moreover, the clamping component is automatically opened and closed by the electric push rod, replacing manual operation of loading and unloading the brake disc kit. This not only greatly reduces the labor intensity of operators, but also avoids the collision and damage of parts caused by manual handling, effectively protecting the test parts, and significantly improving hoisting efficiency.
[0032] 5. In this invention, the structural design of the clamping component combines practicality and safety. The cooperation between the cam and the protrusion ensures that the clamping hoop always remains open downwards during hoisting, preventing the brake disc assembly from falling off during hoisting. The elastic rebound force of the second spring accelerates the separation of the bearing plate, allowing the clamping hoop to quickly detach from the brake disc assembly, improving material unloading efficiency. The cooperation between the limiting plate and the limiting post can pre-limit the bearing plate, preventing it from opening and closing excessively, further ensuring the stability of the clamping. Attached Figure Description
[0033] Figure 1 This invention provides a three-dimensional structural schematic diagram of a vibration testing device for small automotive parts; Figure 2 This invention provides a three-dimensional structural diagram of a vibration testing device for small automotive parts. Figure 3 This invention provides a schematic diagram of the drive assembly and transmission assembly of a vibration testing device for small automotive parts; Figure 4 This invention provides a schematic diagram of the substrate structure of a vibration testing device for small automotive parts, viewed from below. Figure 5 This invention provides a schematic diagram of the structure of a hoisting assembly for a vibration testing device for small automotive parts. Figure 6 This invention provides a schematic diagram of the structure of the clamping component in a vibration testing device for small automotive parts. Figure 7 This invention provides a schematic diagram of the clamping component of a vibration testing device for small automotive parts from another angle. Figure 8 This invention presents a schematic diagram of the limiting component of a vibration testing device for small automotive parts.
[0034] Legend: 1. Base plate; 2. Drive assembly; 21. Motor; 22. Synchronous pulley; 23. Protruding plate; 24. Shaft; 25. Worm gear; 26. Synchronous belt; 3. Transmission assembly; 31. Bearing; 32. Rotating rod; 33. Worm gear; 34. Turntable; 35. Adjusting component; 351. Nut block; 352. Traction rod; 353. Ball shaft; 354. Threaded rod; 4. Vibrating plate; 41. Guide rod; 42. Placement slot; 5. Limiting assembly; 51. Vertical rod; 52. Base; 53. Clamping plate; 54. Slip ring; 55. Traction plate; 56. Spring No. 1; 6. Lifting assembly; 61. Support arm; 62. Assembly plate; 621. Guide groove; 622. Guide block; 63. Electric actuator; 64. Clamping component; 641. Pull rod; 642. Connecting block; 643. Hinge plate No. 1; 644. Bearing plate; 645. Connecting plate; 646. Slide plate; 647. Spring No. 2; 648. Limiting plate; 649. Limiting post; 6410. Rotating rod; 6411. Clamping clamp; 6412. Cam. Detailed Implementation
[0035] like Figure 1-8As shown, a vibration testing device for small automotive parts uses a base plate 1 as the overall mounting foundation. A drive assembly 2 and a transmission assembly 3 are fixedly mounted on the top of the base plate 1. Several guide rods 41 are also vertically fixed on the top of the base plate 1. A vibration plate 4 is slidably sleeved on the outer surface of the guide rods 41. The transmission assembly 3 is connected to the vibration plate 4 to provide power for the vibration of the vibration plate 4. A limit assembly 5 is mounted on the top of the vibration plate 4. The limit assembly 5 is used to limit and fix the automotive brake disc kit to be tested. A lifting assembly 6 is also rotatably mounted on the base plate 1. The lifting assembly 6 can realize the lifting of the automotive brake disc kit to be tested or after the test is completed, and complete the loading and unloading operations of the brake disc kit. After the drive assembly 2 is started, the power is transmitted through the transmission assembly 3 to drive the vibration plate 4 to vibrate up and down along the guide rods 41, thereby driving the brake disc kit fixed by the limit assembly 5 to vibrate synchronously, and completing the vibration test of the brake disc kit.
[0036] The motor 21 is fixedly mounted on the top of the base plate 1. The output shaft of the motor 21 is fixedly connected to a synchronous pulley 22 via a coupling. Two protruding plates 23 are fixedly connected to one side of the motor 21 on the top of the base plate 1. The two protruding plates 23 are arranged symmetrically. The shaft 24 passes between the two protruding plates 23, and the shaft 24 and the protruding plates 23 are rotatably connected via bearings. One end of the shaft 24 is also fixedly mounted with a synchronous pulley 22. A synchronous belt 26 is sleeved between the two synchronous pulleys 22. The synchronous rotation of the two synchronous pulleys 22 is achieved by the transmission of the synchronous belt 26. A worm gear 25 is also fixedly sleeved on the outer surface of the shaft 24. The worm gear 25 rotates synchronously with the rotation of the shaft 24.
[0037] A bearing 31 is fixedly mounted on the base plate 1. A rotating rod 32 passes through the inner ring of the bearing 31 and is fixedly connected to the bearing 31, realizing the rotational connection between the rotating rod 32 and the base plate 1. A worm gear 33 is fixedly sleeved on the outer surface of the rotating rod 32. The worm gear 33 meshes with the worm 25 and can rotate synchronously with the rotation of the worm 25. A turntable 34 is fixedly connected to the end of the rotating rod 32 away from the bearing 31. An adjusting component 35 is mounted on the turntable 34. The adjusting component 35 can realize the adjustment of the vibration amplitude of the vibrating plate 4. A connecting seat is fixedly installed on the end face of the turntable 34 and the outer side of the nut block 351. A ball shaft 353 is fixedly mounted on each of the two connecting seats. The two ends of the traction rod 352 are respectively connected to the two ball shafts 353. A connecting seat is fixedly installed on the bottom of the vibrating plate 4. One end of the threaded rod 354 is rotatably connected to the connecting seat. The other end of the threaded rod 354 is threadedly connected to the nut block 351.
[0038] The bottom of the vibrating plate 4 has a sliding groove, and the nut block 351 is embedded in the sliding groove and can slide linearly along the sliding groove. The top of the vibrating plate 4 has a placement groove 42, and the limiting component 5 is fixedly assembled inside the placement groove 42. The vertical rod 51 is vertically fixed to the inner bottom wall of the placement groove 42. The bottom of the vertical rod 51 is fixedly connected to the base 52, and several clamping plates 53 are hinged to the outside of the base 52. Each clamping plate 53 has a groove on one side. A sliding ring 54 is slidably fitted on the outer surface of the vertical rod 51. Several traction plates 55 are hinged to the outer surface of the ring 54. The number of traction plates 55 is consistent with the number of clamping plates 53. The end of the traction plate 55 away from the slip ring 54 is inserted into the groove of the clamping plate 53, and this end is hinged to the clamping plate 53 through a rotating shaft. An elastic element is sleeved on the outer surface of the vertical rod 51. The elastic element is a first spring 56. The first spring 56 is sleeved on the outer surface of the vertical rod 51. One end of the first spring 56 abuts against the slip ring 54, and the other end of the first spring 56 is fixedly connected to the outer surface of the vertical rod 51.
[0039] One end of the support arm 61 is rotatably mounted on the top of the base plate 1 via a bearing seat. The other end of the support arm 61 is fixedly connected to an assembly plate 62. A guide groove 621 is provided on one side of the assembly plate 62. A guide block 622 is slidably embedded inside the guide groove 621. The guide block 622 can slide linearly along the guide groove 621. An electric actuator 63 is fixedly mounted on the guide block 622. The output rod of the electric actuator 63 is set vertically downward and passes through the guide block 622 and extends to the outside of the guide block 622. A clamping member 64 is connected to the end of the output rod of the electric actuator 63. The top end of the pull rod 641 is fixedly connected to the end of the output rod of the electric actuator 63. A connecting block 642 is fixedly connected to the bottom end of the pull rod 641. Both ends of the connecting block 642 are hinged to a first hinge plate 643 via a rotating shaft. The ends of the two first hinge plates 643 away from the connecting block 642 are respectively hinged to two bearing plates 644.
[0040] A sliding plate 646 is slidably fitted onto the outer surface of the pull rod 641. Both ends of the sliding plate 646 are hinged to connecting plates 645 via pivots. The ends of the two connecting plates 645 furthest from the sliding plate 646 are respectively hinged to two bearing plates 644. A limit post 649 is fixedly installed on the outer side of one bearing plate 644, and a limit plate 648 is rotatably connected to the outer side of the other bearing plate 644 via a pivot. One end of the limit plate 648 has a slot that can engage with the limit post 649. Each support plate 644 is rotatably connected to a rotating rod 6410. One end of the rotating rod 6410 is fixedly connected to a cam 6412. A protrusion is fixedly installed on the support plate 644, which abuts against the outer side of the cam 6412. The other end of the rotating rod 6410 is fixedly connected to a clamping hoop 6411. A second spring 647 is sleeved on the outer surface of the pull rod 641. One end of the second spring 647 abuts against the sliding plate 646, and the other end of the second spring 647 abuts against the connecting block 642.
[0041] Working principle: The power of this device is provided by the drive component 2. After the motor 21 is started, the output shaft of the motor 21 drives the synchronous pulley 22 at its end to rotate. Through the transmission action of the synchronous belt 26, the synchronous pulley 22 at the end of the shaft 24 rotates synchronously, thereby driving the shaft 24 to rotate around the convex plate 23. When the shaft 24 rotates, it drives the worm 25 on its outer surface to rotate synchronously. The worm 25 meshes with the worm wheel 33. The rotation of the worm 25 drives the worm wheel 33 to rotate synchronously. The rotation of the worm wheel 33 further drives the rotating rod 32 to rotate around the bearing 31. The rotation of the rotating rod 32 drives the turntable 34 at its end to rotate in a circle.
[0042] When the turntable 34 rotates in a circular motion, the ball shaft 353 on its end face drives the traction rod 352 to reciprocate. The traction rod 352, through the ball shaft 353 at the other end, pulls the nut block 351 to slide linearly along the groove at the bottom of the vibrating plate 4. At the same time, it pulls the vibrating plate 4 to vibrate up and down along the guide rod 41. The vibration of the vibrating plate 4 will cause the car brake disc kit on the limiting component 5 in the top placement groove 42 to vibrate synchronously, thus completing the vibration test of the brake disc kit. When it is necessary to adjust the vibration amplitude of the vibrating plate 4, the threaded rod 354 is rotated. Because the nut block 351 is limited by the circumferential movement of the groove, it cannot rotate with the threaded rod 354, but can only move linearly along the axis of the threaded rod 354. The movement of the nut block 351 will cause the two ends of the traction rod 352 to tilt at an angle through the ball shaft 353. After the tilt angle of the traction rod 352 changes, the stroke of the vibrating plate 4 to vibrate up and down also changes accordingly, thereby realizing the flexible adjustment of the up and down reciprocating vibration amplitude of the vibrating plate 4.
[0043] When fixing the brake disc assembly, pull the slip ring 54 upwards. The slip ring 54 slides upwards along the vertical rod 51 and stretches the first spring 56. The movement of the slip ring 54 will cause the traction plate 55 on its outer surface to move in a traction motion. The traction plate 55 pulls the clamping plate 53 to rotate around the base 52 towards the vertical rod 51, causing several clamping plates 53 to move closer together. At this time, the round hole in the middle of the brake disc assembly is fitted onto the outside of the clamping plate 53. Then, release the slip ring 54. The first spring 56 will rebound due to its own elastic force. Under the action, the slip ring 54 slides down and resets along the vertical rod 51. The reset of the slip ring 54 drives the traction plate 55 to pull the clamping plate 53 in the opposite direction, so that the clamping plate 53 rotates around the base 52 in a direction away from the vertical rod 51 and opens up. The outer wall of the clamping plate 53 is tightly abutted against the inner wall of the circular hole of the brake disc assembly, thereby realizing the firm limiting and fixing of the brake disc assembly. After the test is completed, the slip ring 54 is pulled up again to make the clamping plates 53 move closer together, so that the brake disc assembly can be quickly removed from the outside of the clamping plate 53, thus completing the loosening of the brake disc assembly.
[0044] When the brake disc assembly needs to be hoisted, first rotate the limiting plate 648 to disengage the slot on the limiting plate 648 from the limiting post 649, releasing the pre-limit between the two bearing plates 644. Then, start the electric push rod 63. The output rod of the electric push rod 63 drives the pull rod 641 to move upward. The pull rod 641 drives the connecting block 642 to move upward synchronously, and at the same time, it drives the clamping clamps 6411 on the two bearing plates 644 to move upward. During this process, the cam 6412 rotates due to the limiting effect of the protrusion on the bearing plate 644, which in turn drives the rotating rod 6410 to rotate, ensuring that the opening of the clamping clamp 6411 always faces downward, preventing the brake disc assembly from falling off during hoisting. Then rotate the support arm 61 so that it rotates around the bearing seat, causing the clamping member 64 to move above the brake disc assembly. Then push the electric push rod 63 so that the guide block 622 slides along the guide groove 621 on the assembly plate 62, adjust the horizontal position of the clamping member 64 so that the two clamping clamps 6411 are aligned with the outer circumferential surface of the brake disc assembly.
[0045] Continue to activate the electric actuator 63, causing the pull rod 641 to move upwards. This upward movement of the pull rod 641 moves the connecting block 642 upwards, pulling the two bearing plates 644 closer together through the transmission action of the first hinge plate 643. Simultaneously, the sliding plate 646 slides along the pull rod 641, compressing the second spring 647. The two bearing plates 644 then move closer together, causing the clamping clamps 6411 at their ends to clamp onto the outer circumference of the brake disc assembly, thus clamping the brake disc assembly. After clamping, the electric actuator 63 drives the pull rod 641 upwards, lifting the brake disc assembly. Rotate the support arm 61 and slide the guide block 622 to adjust the lifting position, transporting the brake disc assembly to the designated location. When the brake disc assembly needs to be lowered, the output rod of the control electric actuator 63 moves down, causing the pull rod 641 to move down synchronously. The downward movement of the pull rod 641 causes the first hinge plate 643 to push the two bearing plates 644 to separate from each other. At the same time, the second spring 647 pushes the slide plate 646 to slide under its own elastic rebound force. The slide plate 646 accelerates the separation of the two bearing plates 644 through the connecting plate 645, so that the clamping clamp 6411 quickly disengages from the outer circumference of the brake disc assembly, completing the unloading operation of the brake disc assembly.
Claims
1. A vibration testing device for small automotive parts, comprising a base plate (1), characterized in that: The base plate (1) is equipped with a drive assembly (2) and a transmission assembly (3) on its top. Several guide rods (41) are mounted on the base plate (1). A vibration plate (4) is slidably connected to the guide rods (41). The transmission assembly (3) is connected to the vibration plate (4). The vibration plate (4) is used to limit the automotive brake disc kit to be tested by means of a limiting assembly (5). The drive assembly (2) drives the transmission assembly (3) to drive the vibration plate (4) to vibrate up and down on the outer surface of the guide rods (41). The vibration plate (4) vibrates up and down on the outer surface of the guide rods (41) to drive the automotive brake disc kit to be tested, which is limited by the limiting assembly (5), to perform a vibration test. The base plate (1) is equipped with a hoisting assembly (6) for hoisting the automotive brake disc kit that has been tested or is to be tested off the vibration plate (4) or hoisting it onto the vibration plate (4).
2. The vibration testing device for small automotive parts according to claim 1, characterized in that: The drive assembly (2) is equipped with a motor (21), the output shaft of which is connected to a synchronous pulley (22) via a coupling. Two symmetrical protrusions (23) are connected on the base plate (1) on one side of the motor (21). A shaft (24) is rotatably connected between the two protrusions (23). A synchronous pulley (22) is also mounted on one end of the shaft (24). The two synchronous pulleys (22) are connected by a synchronous belt (26). A worm gear (25) is fixedly connected to the shaft (24).
3. The vibration testing device for small automotive parts according to claim 2, characterized in that: The transmission assembly (3) is provided with a bearing (31) mounted on a base plate (1). The base plate (1) is rotatably connected to a rotating rod (32) via the bearing (31). A worm wheel (33) meshing with a worm (25) is mounted on the rotating rod (32). A turntable (34) is mounted on the end of the rotating rod (32) away from the bearing (31). An adjusting element (35) is mounted on the turntable (34) to adjust the amplitude of the vibration of the vibrating plate (4) on the outer surface of the guide rod (41).
4. The vibration testing device for small automotive parts according to claim 3, characterized in that: The adjusting component (35) includes a nut block (351), a traction rod (352), a ball shaft (353), and a threaded rod (354). The ball shaft (353) is mounted on both the turntable (34) and the nut block (351) via a connecting seat. The traction rod (352) is connected between the two ball shafts (353). The bottom of the vibrating plate (4) is rotatably connected to the threaded rod (354) via a connecting seat. The threaded rod (354) is threadedly connected to the nut block (351).
5. The vibration testing device for small automotive parts according to claim 4, characterized in that: The bottom of the vibration plate (4) is provided with a sliding groove, and the nut block (351) is slidably connected in the sliding groove. The top of the vibration plate (4) is provided with a placement groove (42), and a limiting component (5) is installed inside the placement groove (42) to limit the automotive brake disc kit to be tested.
6. The vibration testing device for small automotive parts according to claim 5, characterized in that: The limiting component (5) is provided with a vertical rod (51), which is installed in the placement groove (42). A base (52) is installed at the bottom of the vertical rod (51). Several clamping plates (53) are hinged on the base (52). The clamping plates (53) have grooves. A slip ring (54) is sleeved on the vertical rod (51). The outer surface of the slip ring (54) is hinged with a number of traction plates (55) equal to the number of clamping plates (53). The end of the traction plate (55) away from the slip ring (54) is inserted into the groove of the clamping plate (53) and hinged by a rotating shaft. An elastic element is provided on the vertical rod (51) to keep the reset position of the slip ring (54) unchanged after it moves.
7. The vibration testing device for small automotive parts according to claim 6, characterized in that: The elastic element is a No. 1 spring (56) sleeved on the outer surface of the vertical rod (51), and the two ends of the No. 1 spring (56) are respectively connected to the slip ring (54) and the vertical rod (51).
8. The vibration testing device for small automotive parts according to claim 1, characterized in that: The hoisting assembly (6) is provided with a support arm (61), which is rotatably mounted on the base plate (1) by means of a bearing seat. An assembly plate (62) is mounted on the support arm (61), and an electric push rod (63) is mounted on the assembly plate (62). A clamping member (64) is connected to the output rod of the electric push rod (63) for clamping and hoisting the automotive brake disc assembly.
9. The vibration testing device for small automotive parts according to claim 8, characterized in that: The assembly plate (62) has a guide groove (621) and a guide block (622) is slidably connected in the guide groove (621). An electric actuator (63) is mounted on the guide block (622) and the output rod of the electric actuator (63) passes through the guide block (622) and extends to the outside of the guide block (622).
10. The vibration testing device for small automotive parts according to claim 9, characterized in that: The clamping member (64) includes a pull rod (641) connected to the rod of the electric actuator (63). A connecting block (642) is connected to the bottom of the pull rod (641). The two ends of the connecting block (642) are hinged to a first hinge plate (643) via a pivot. A bearing plate (644) is hinged to the end of each of the first hinge plates (643) away from the connecting block (642). A sliding plate (646) is fitted on the pull rod (641). Both ends of the sliding plate (646) are hinged to a connecting plate (645) connected to the bearing plate (644). A limit post (649) is installed on one of the bearing plates (644), and the other bearing plate (645) is connected to the other bearing plate (644). A limiting plate (648) is rotatably connected to the carrier plate (644). One end of the limiting plate (648) is provided with a slot that engages with the limiting post (649). A rotating rod (6410) is rotatably connected to the carrier plate (644). One end of the rotating rod (6410) is connected to a cam (6412), and the other end of the rotating rod (6410) is connected to a clamping hoop (6411). A protruding post is provided on the carrier plate (644) for the limiting cam (6412) to rotate. A second spring (647) is sleeved on the outer surface of the pull rod (641) and its two ends are respectively connected to the slide plate (646) and the connecting block (642).