An automobile-mounted vacuum pump wear resistance automatic detection device

Abstract

This invention relates to the field of vehicle-mounted vacuum pump technology and discloses an automated testing device for the wear resistance performance of vehicle-mounted vacuum pumps. The device includes a vehicle-mounted vacuum pump testing platform, a vehicle-mounted vacuum vane, a CCD camera, and a distance sensor. The vehicle-mounted vacuum vane is placed on the testing platform, and a CCD camera and a distance sensor are respectively installed on both sides of the vane. This invention utilizes a drive assembly to achieve precise omnidirectional positioning and smooth rotation of the vehicle-mounted vacuum vane, preventing displacement or loosening during testing. The CCD camera captures real-time images of the contact area between the moving roller and the vane, while the distance sensor captures the movement distance of the L-shaped placement plate, accurately quantifying wear conditions. A reset spring ensures stable contact pressure, and the installation of bearings and a rotating rod reduces friction interference, improving testing accuracy. The entire process is automated, reducing manual operation and improving testing efficiency. Relying on the vehicle-mounted vacuum pump testing platform and related components, it comprehensively meets the requirements for accurate wear resistance performance testing.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-mounted vacuum pump technology, specifically, it relates to an automated testing device for the wear resistance performance of vehicle-mounted vacuum pumps. Background Technology

[0002] As a key component of automotive braking systems and turbocharging systems, the reliability of vehicle-mounted vacuum pumps directly affects vehicle driving safety and operational stability. Vehicle-mounted vacuum vanes, as the core moving part of the vacuum pump, are in constant frictional contact with the pump body during high-speed rotation. Their wear resistance directly determines the service life, vacuum maintenance capability, and maintenance cycle of the vacuum pump. Therefore, accurate testing of the wear resistance of vehicle-mounted vacuum vanes is a core quality control step in the manufacturing of vehicle-mounted vacuum pumps.

[0003] Existing automated testing equipment often employs a single testing dimension, either observing surface wear marks solely through visual devices or measuring wear in a single direction using displacement sensors. However, when testing vehicle-mounted vacuum vanes, wear often needs to be measured on multiple sides, with different methods for each side. This makes coordinated monitoring difficult during testing, resulting in an inability to accurately quantify the wear degree of the vacuum vane under simulated working conditions and to fully reflect its wear resistance performance.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An automated testing device for the wear resistance of a vehicle-mounted vacuum pump includes a vehicle-mounted vacuum pump testing platform, a vehicle-mounted vacuum vane, a CCD camera, and a distance sensor. The vehicle-mounted vacuum vane is placed on the testing platform, and a CCD camera and a distance sensor are respectively installed on both sides of the vane. A drive assembly is also provided within the testing platform, used for positioning and rotating the vehicle-mounted vacuum vane. Two L-shaped placement plates are also provided on the testing platform, with moving rollers positioned above each L-shaped plate. The moving rollers and the upper surface of the vehicle-mounted vacuum vane are in contact with each other. The CCD camera is used to inspect the degree of contact between the moving rollers and the vehicle-mounted vacuum vane, and the distance sensor is used to detect the distance between the two ends of the L-shaped placement plates and the vehicle-mounted vacuum vane.

[0006] In a preferred embodiment of the present invention, a sliding door is provided on the front side of the vehicle-mounted vacuum pump testing platform, an installation plate is provided at the bottom of the inner cavity of the vehicle-mounted vacuum pump testing platform, a Z-shaped fixing plate is also provided inside the vehicle-mounted vacuum pump testing platform, a circular placement plate is provided above the installation plate, a plurality of equally spaced fitting slots are provided on the circular placement plate, and a vehicle-mounted vacuum vane is placed above the circular placement plate.

[0007] In a preferred embodiment of the present invention, the driving assembly includes a servo motor, which is disposed at the bottom of the Z-shaped fixing plate. A rotating rod is disposed at the output end of the servo motor, and a rectangular mounting cylinder is disposed at the end of the rotating rod away from the servo motor. A rectangular insertion block is inserted into the inner cavity of the rectangular mounting cylinder, and a pressing plate is disposed at the bottom of the rectangular insertion block. A plurality of equally spaced mating blocks are disposed at the bottom of the pressing plate, and each mating block respectively mats with a mating slot. A cylinder and a telescopic rod are also disposed at the bottom of the Z-shaped fixing plate, and the cylinder and the telescopic rod are symmetrical to each other.

[0008] In a preferred embodiment of the present invention, the two opposite side walls of the rectangular plug block are provided with connecting plates, the two connecting plates are symmetrical to each other, and a circular mounting plate is provided above the two connecting plates. A circular groove is provided above the circular mounting plate, and two movable sliders are slidably arranged in the inner cavity of the circular groove. The two movable sliders are symmetrical to each other, and the cylinder output end and the telescopic rod moving end are respectively provided above the two movable sliders.

[0009] In a preferred embodiment of the present invention, the circular placement plate has two Z-shaped mounting plates on its sidewall. The two Z-shaped mounting plates are symmetrical to each other. A circular fixing plate is provided at the opposite end of the two Z-shaped mounting plates. The circular fixing plate has two circular slots, which are symmetrical to each other. A connecting rod is inserted into the two circular slots. The two connecting rods are symmetrical to each other. An L-shaped placement plate is provided at the opposite end of the two connecting rods. A return spring is provided on the sidewall of the two L-shaped placement plates opposite to the circular fixing plate. The return spring is sleeved on the connecting rod, and its two ends are respectively provided on the sidewall of the L-shaped placement plate opposite to the circular fixing plate. A handle is provided at the opposite end of the two connecting rods.

[0010] In a preferred embodiment of the present invention, a C-shaped mounting plate is further provided above the two L-shaped placement plates. The two C-shaped mounting plates are symmetrical to each other. A mounting bearing is provided on one side wall of the two C-shaped mounting plates facing each other. Each mounting bearing is symmetrical to each other. A rotating rod is provided between each pair of mounting bearings, and a moving roller is provided between each pair of rotating rods. A telescopic rod is also provided on the two C-shaped mounting plates. An irregularly shaped fixing rod is provided at the other end of the telescopic rod. The other end of the irregularly shaped fixing rod is provided on a rectangular insertion block. A CCD camera is provided on the irregularly shaped fixing rod.

[0011] In a preferred embodiment of the present invention, the outer walls of the two C-shaped mounting plates are respectively provided with irregularly shaped mounting rods, and the two irregularly shaped mounting rods are connected to each other, and a fixing block is provided at the connection point.

[0012] In a preferred embodiment of the present invention, the mounting plate is further provided with an irregularly shaped guide rail, and a fixing block is slidably provided on the inner ring of the irregularly shaped guide rail.

[0013] In a preferred embodiment of the present invention, the outer ring of the circular placement plate is further provided with four connecting frames, which are symmetrical to each other in pairs, and a folded mounting component is provided at the end away from the circular placement plate.

[0014] In a preferred embodiment of the present invention, each of the folded mounting components is provided with a drive groove on one side wall near the connecting frame, and a drive slider is slidably disposed in the inner cavity of the drive groove. An L-shaped positioning plate is provided at one end of each drive slider away from the drive groove. Each L-shaped positioning plate is symmetrical to each other. The top of each L-shaped positioning plate is attached to an L-shaped placement plate. A mounting spring is provided at the bottom of each drive slider, and the other end of the mounting spring is disposed at the bottom of the inner cavity of the drive groove.

[0015] Compared with the prior art, the present invention has the following advantages: This invention features a drive assembly that enables precise omnidirectional positioning and smooth rotation of the vehicle-mounted vacuum vane, preventing misalignment and loosening during testing. A CCD camera captures real-time images of the contact area between the moving roller and the vane, while a distance sensor captures the movement distance of the L-shaped placement plate, accurately quantifying wear conditions. A reset spring ensures stable contact pressure, and the installation of bearings and a rotating rod reduces friction interference, improving testing accuracy. The entire process is automated, reducing manual operation and increasing testing efficiency. Relying on the vehicle-mounted vacuum pump testing platform and related components, it comprehensively meets the requirements for precise wear resistance testing.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of an automated testing device for the wear resistance of a vehicle-mounted vacuum pump; Figure 2 This is a magnified schematic diagram of the inner cavity of the vehicle-mounted vacuum pump testing platform, which is part of an automated testing device for the wear resistance performance of vehicle-mounted vacuum pumps. Figure 3 A schematic diagram of the inner cavity structure of the vehicle-mounted vacuum pump testing platform of an automated testing device for the wear resistance performance of vehicle-mounted vacuum pumps. Figure 4 A bottom view of the internal structure of the vehicle-mounted vacuum pump testing platform, which is an automated testing device for the wear resistance of vehicle-mounted vacuum pumps. Figure 5 A schematic diagram of the drive component structure of an automated testing device for the wear resistance of a vehicle-mounted vacuum pump. Figure 6 A schematic diagram of a circular placement plate structure for an automated testing device for the wear resistance of a vehicle-mounted vacuum pump. Figure 7 A schematic diagram of an L-shaped placement plate structure for an automated testing device for the wear resistance of a vehicle-mounted vacuum pump. Figure 8 A schematic diagram of a C-shaped mounting plate structure for an automated testing device for the wear resistance of a vehicle-mounted vacuum pump. Figure 9 A schematic diagram of a folded mounting component for an automated testing device for the wear resistance of a vehicle-mounted vacuum pump. Figure 10 This is a schematic diagram of the L-shaped placement plate limiting structure of an automated testing device for the wear resistance of a vehicle-mounted vacuum pump.

[0018] In the picture: 1. Vehicle-mounted vacuum pump testing platform; 11. Sliding door; 12. Z-shaped fixing plate; 13. Mounting plate; 14. Circular placement plate; 141. Fitting groove; 2. Servo motor; 21. Rotating rod; 211. Rectangular mounting cylinder; 212. Rectangular plug-in block; 213. Connecting plate; 22. Pressing plate; 221. Fitting block; 23. Cylinder; 231. Telescopic rod; 232. Circular mounting plate; 233. Circular slide groove; 234. Moving slider; 24. Irregularly shaped fixing rod; 241. Telescopic rod; 3. Z-shaped mounting plate; 31. Circular ring fixing plate; 32. L-shaped placement plate; 321. Connecting rod; 322. Handle; 323. Return spring; 4. C-shaped mounting plate; 41. Mounting bearing; 412. Rotating rod; 413. Moving roller; 42. Irregularly shaped mounting rod; 421. Fixing block; 43. Irregularly shaped guide rail; 5. L-shaped positioning plate; 51. Folded mounting component; 511. Drive slide rail; 512. Drive slider; 513. Mounting spring; 52. Connecting bracket; 6. Vehicle-mounted vacuum rotary vane; 61. CCD camera; 62. Distance sensor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1:

[0021] like Figures 1 to 10 As shown, an automated testing device for the wear resistance of a vehicle-mounted vacuum pump includes a vehicle-mounted vacuum pump testing platform 1, a vehicle-mounted vacuum vane 6, a CCD camera 61, and a distance sensor 62. The vehicle-mounted vacuum vane 6 is placed on the testing platform 1, and the CCD camera 61 and distance sensor 62 are respectively installed on both sides of the vehicle-mounted vacuum vane 6. A drive assembly is also installed inside the vehicle-mounted vacuum pump testing platform 1, which is used to position the vehicle-mounted vacuum vane 6 and drive its rotation. Two L-shaped placement plates 32 are also installed on the testing platform 1, and a moving roller 413 is installed above each of the two L-shaped placement plates 32. The moving roller 413 and the upper surface of the vehicle-mounted vacuum vane 6 are in contact with each other. The CCD camera 61 is used to inspect the degree of contact between the moving roller 413 and the vehicle-mounted vacuum vane 6, and the distance sensor 62 is used to detect the distance between the two ends of the L-shaped placement plates 32 and the vehicle-mounted vacuum vane 6. The drive assembly enables precise positioning and smooth rotation of the vehicle-mounted vacuum vane 6 in all directions, preventing deviation and loosening during testing. The CCD camera 61 captures real-time images of the contact area between the moving roller 413 and the vane, while the distance sensor 62 captures the movement distance of the L-shaped placement plate 32, accurately quantifying wear conditions. The reset spring 323 ensures stable contact pressure, and the mounting bearing 41 and rotating rod 412 reduce friction interference, improving testing accuracy. The entire process is automated, reducing manual operation and improving testing efficiency. Relying on the vehicle-mounted vacuum pump testing platform 1 and related components, it fully meets the requirements for precise testing of wear resistance performance.

[0022] like Figures 1 to 2As shown in the specific embodiment, a sliding door 11 is provided on the front side of the vehicle-mounted vacuum pump testing platform 1, an mounting plate 13 is provided at the bottom of the inner cavity of the vehicle-mounted vacuum pump testing platform 1, a Z-shaped fixing plate 12 is also provided inside the vehicle-mounted vacuum pump testing platform 1, a circular placement plate 14 is provided above the mounting plate 13, and multiple equally spaced fitting slots 141 are opened on the circular placement plate 14. The vehicle-mounted vacuum vane 6 is placed on the circular placement plate 14. In this configuration, the sliding door 11 can realize the closed protection of the testing platform, avoid interference from external impurities during the testing process, and facilitate the loading and unloading of workpieces; the mounting plate 13 provides stable support for the circular placement plate 14, the Z-shaped fixing plate 12 provides an installation reference for the drive assembly, and the fitting slots 141 on the circular placement plate 14 can precisely cooperate with the fitting blocks 221 of the subsequent drive assembly, laying the foundation for the circumferential positioning of the vehicle-mounted vacuum vane 6 and ensuring the initial positional accuracy after the workpiece is placed.

[0023] Example 2:

[0024] The difference between the above embodiments and this embodiment is that: Figures 1 to 5 As shown, an automated testing device for the wear resistance of a vehicle-mounted vacuum pump includes a drive component comprising a servo motor 2, which is mounted at the bottom of a Z-shaped fixing plate 12. A rotating rod 21 is mounted at the output end of the servo motor 2. A rectangular mounting cylinder 211 is mounted at the end of the rotating rod 21 away from the servo motor 2. A rectangular insertion block 212 is inserted into the inner cavity of the rectangular mounting cylinder 211. A pressing plate 22 is mounted at the bottom of the rectangular insertion block 212. Multiple equally spaced mating blocks 221 are mounted at the bottom of the pressing plate 22, and each mating block 221 mats with a mating slot 141. A cylinder 23 and a telescopic rod 231 are also mounted at the bottom of the Z-shaped fixing plate 12, and the cylinder 23 and the telescopic rod 231 are symmetrical to each other.

[0025] like Figures 1 to 5 As shown in the specific embodiment, the rectangular plug-in block 212 is further provided with connecting plates 213 on its opposite side walls. The two connecting plates 213 are symmetrical to each other, and a circular mounting plate 232 is provided above the two connecting plates 213. A circular groove 233 is provided above the circular mounting plate 232, and two movable sliders 234 are slidably arranged in the inner cavity of the circular groove 233. The two movable sliders 234 are symmetrical to each other, and the output end of the cylinder 23 and the moving end of the telescopic rod 231 are respectively located above the two movable sliders 234. In this configuration, the connecting plate 213 realizes the rigid connection between the rectangular plug-in block 212 and the circular mounting plate 232. The sliding cooperation between the circular groove 233 and the movable sliders 234 allows the driving force of the cylinder 23 and the telescopic rod 231 to be smoothly transmitted to the circular mounting plate 232, thereby driving the rectangular plug-in block 212 to rise and fall vertically, ensuring the pressing stability of the pressing plate 22 on the vehicle-mounted vacuum vane 6, and avoiding deviation during the lifting process.

[0026] like Figures 1 to 7As shown, further, the side wall of the circular placement plate 14 is provided with two Z-shaped mounting plates 3, which are symmetrical to each other. The opposite ends of the two Z-shaped mounting plates 3 are provided with a circular ring fixing plate 31. The circular ring fixing plate 31 has two circular slots, which are symmetrical to each other. Connecting rods 321 are inserted into the two circular slots. The two connecting rods 321 are symmetrical to each other. The opposite ends of the two connecting rods 321 are provided with L-shaped placement plates 32. The side wall of the two L-shaped placement plates 32 opposite to the circular ring fixing plate 31 is provided with a return spring 323. The return spring 323 is sleeved on the connecting rod 321, and its two ends are respectively provided on the side wall of the L-shaped placement plate 32 opposite to the circular ring fixing plate 31. The opposite ends of the two connecting rods 321 are provided with handles 322. In this configuration, the Z-shaped mounting plate 3 provides a stable mounting support for the annular fixing plate 31. The connecting rod 321 can slide along the circular groove of the annular fixing plate 31. With the elastic force of the return spring 323, the L-shaped placement plate 32 can be automatically reset and close. The handle 322 facilitates manual operation of the separation and reset of the L-shaped placement plate 32, providing convenient operating space for the loading and unloading of the vehicle-mounted vacuum vane 6. At the same time, the preload of the return spring 323 can ensure the stable contact pressure between the L-shaped placement plate 32 and the workpiece.

[0027] like Figures 1 to 8 As shown, further, a C-shaped mounting plate 4 is provided above the two L-shaped placement plates 32. The two C-shaped mounting plates 4 are symmetrical to each other. A mounting bearing 41 is provided on one side wall opposite to the two C-shaped mounting plates 4. Each mounting bearing 41 is symmetrical to each other. A rotating rod 412 is provided between each pair of mounting bearings 41. A moving roller 413 is provided between each pair of rotating rods 412. A telescopic rod 241 is also provided on the two C-shaped mounting plates 4. An irregularly shaped fixing rod 24 is provided at the other end of the telescopic rod 241. The other end of the irregularly shaped fixing rod 24 is provided on the rectangular plug block 212. A CCD camera 61 is provided on the irregularly shaped fixing rod 24. In this setup, the C-shaped mounting plate 4 provides an integrated mounting carrier for the mounting bearing 41, the rotating rod 412, and the moving roller 413. The cooperation between the mounting bearing 41 and the rotating rod 412 can significantly reduce the rotational friction resistance of the moving roller 413, avoiding additional wear that could affect the detection accuracy. The contact and rolling of the moving roller 413 with the vehicle-mounted vacuum vane 6 can simulate the contact form under actual working conditions. The irregularly shaped fixing rod 24 rigidly connects the C-shaped mounting plate 4 and the rectangular plug-in block 212, ensuring that the moving roller 413 rotates synchronously with the vehicle-mounted vacuum vane 6, achieving full contact detection.

[0028] like Figures 1 to 8As shown, furthermore, irregularly shaped mounting rods 42 are respectively provided on the outer walls of the two C-shaped mounting plates 4, and the irregularly shaped mounting rods 42 are connected to each other, with a fixing block 421 provided at the connection point. In this configuration, the irregularly shaped mounting rods 42 synchronously connect the two symmetrical C-shaped mounting plates 4, and the fixing block 421 enhances the connection rigidity of the irregularly shaped mounting rods 42, preventing relative displacement of the C-shaped mounting plates 4 during rotation, ensuring the synchronicity and consistency of the contact between the two moving rollers 413 and the vehicle-mounted vacuum rotary plate 6, thereby improving the detection accuracy of the CCD camera 61.

[0029] Example 3:

[0030] The difference between the above embodiments and this embodiment is that: Figures 1 to 8 As shown, an automated testing device for the wear resistance of a vehicle-mounted vacuum pump is provided. The mounting plate 13 is also provided with an irregularly shaped guide rail 43, and a fixing block 421 is slidably arranged on the inner ring of the irregularly shaped guide rail 43.

[0031] like Figures 1 to 10 As shown in the specific embodiment, the outer ring of the circular placement plate 14 is also provided with four connecting brackets 52. The four connecting brackets 52 are symmetrical to each other in pairs, and a folded mounting component 51 is provided at the end away from the circular placement plate 14. In this configuration, the connecting brackets 52 adopt a symmetrical distribution design, providing a uniformly stressed mounting foundation for the folded mounting component 51, ensuring the installation stability of the folded mounting component 51. At the same time, the structural shape of the folded mounting component 51 can be adapted to the installation requirements of the L-shaped positioning plate 5, providing a reasonable spatial layout for the positioning components and enhancing the compactness of the overall structure.

[0032] like Figures 1 to 10 As shown, each folded mounting piece 51 has a drive groove 511 on one side wall near the connecting frame 52, and a drive slider 512 is slidably arranged in the inner cavity of the drive groove 511. An L-shaped positioning plate 5 is provided at one end of the drive slider 512 away from the drive groove 511. Each L-shaped positioning plate 5 is symmetrical to each other. The top of each L-shaped positioning plate 5 is attached to the L-shaped placement plate 32. A mounting spring 513 is provided at the bottom of each drive slider 512, and the other end of the mounting spring 513 is located at the bottom of the inner cavity of the drive groove 511. In this configuration, the drive slide 511 provides a directional sliding trajectory for the drive slider 512. The elastic thrust of the installed spring 513 can drive the drive slider 512 to move the L-shaped positioning plate 5 upward, so that the L-shaped positioning plate 5 accurately fits the L-shaped placement plate 32, forming a rigid limit on the approach stroke of the L-shaped placement plate 32. This effectively prevents the L-shaped placement plate 32 from squeezing the vehicle-mounted vacuum rotary plate 6 due to excessive thrust of the reset spring 323, thus ensuring the positioning safety and detection accuracy of the workpiece.

[0033] The implementation principle of the automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to the present invention is as follows: First, by manually pulling the handles 322 on both sides, the connecting rod 321 is moved outward along the circular groove of the ring fixing plate 31. At this time, the return spring 323 sleeved on the connecting rod 321 is compressed, and the two L-shaped placement plates 32 connected to the connecting rod 321 move away from each other, forming a space sufficient to accommodate the workpiece. The staff then place the vehicle-mounted vacuum rotary vane 6 to be tested steadily on the circular placement plate 14. After releasing handle 322, return spring 323 releases elastic potential energy and generates an inward thrust, pushing L-shaped placement plate 32 toward the vehicle-mounted vacuum vane 6; at the same time, mounting spring 513 in folded mounting component 51 pushes drive slider 512 to slide upward along drive groove 511, causing L-shaped positioning plate 5 to be at the top. Therefore, the side wall of L-shaped positioning plate 5 can block L-shaped placement plate 32. The core function of this step is to make L-shaped placement plate 32 initially close to the workpiece, laying the foundation for the precise fit between L-shaped positioning plate 5 and vehicle-mounted vacuum vane 6 after L-shaped positioning plate 5 is released from the limit, thereby ensuring that distance sensor 62 can accurately detect the moving distance of L-shaped placement plate 32.

[0034] After the initial placement and alignment with the L-shaped placement plate 32, the operator activates the drive assembly for secondary precise positioning: the cylinder 23 and the telescopic rod 231 in the drive assembly work together to push the moving slider 234 downward, thereby causing the annular mounting plate 232 and the connecting plate 213 and rectangular insertion block 212 below to move downward simultaneously (when the rectangular insertion block 212 moves downward, it can drive the irregular fixed rod 24 downward, and then drive the C-shaped mounting plate 4 downward, so that the moving roller 413 can be in contact with the surface of the vehicle-mounted vacuum vane 6). The pressing plate 22, with its multiple mating blocks 221 at the bottom, precisely embeds itself into the corresponding mating slots 141 on the circular placement plate 14. Through the interlocking of the mating blocks and the mating slots, the vehicle-mounted vacuum vane 6 is circumferentially positioned on the circular placement plate 14. Simultaneously, under the driving force of the cylinder 23, the pressing plate 22 presses down on the vehicle-mounted vacuum vane 6. Combined with the lateral approach of the L-shaped placement plate 32 and the limiting effect of the L-shaped positioning plate 5, the vehicle-mounted vacuum vane 6 is positioned axially and circumferentially, ensuring that the workpiece does not shift or loosen during the inspection process. After positioning is completed, the servo motor 2 starts to drive the rotating rod 21 to rotate. Through the insertion and cooperation of the rectangular mounting cylinder 211 and the rectangular plug-in block 212, the pressing plate 22 and the vehicle-mounted vacuum vane 6 below it rotate synchronously. During this process, the cylinder 23 pushes the moving slider 234 to slide along the circular groove 233 of the annular mounting plate 232 through the output end. With the auxiliary support of the telescopic rod 231, it ensures that the pressing plate 22 always maintains a horizontal pressing state, ensuring the smooth rotation of the vehicle-mounted vacuum vane 6. When the vehicle-mounted vacuum vane 6 rotates, its surface is in close contact with the moving roller 413 above the L-shaped placement plate 32. The moving roller 413 rotates synchronously with the vehicle-mounted vacuum vane 6. At the same time, when the rectangular insertion rod 212 rotates, it can also drive the C-shaped mounting plate 4 to rotate through the irregular fixed rod 24. Then, through the irregular mounting rod 42 on the outside of the C-shaped mounting plate 4, the fixed block 421 is driven to slide along the irregular guide rail 43, so that the moving roller 413 can fully fit and roll along the surface of the vehicle-mounted vacuum vane 6 and rotate synchronously with the vehicle-mounted vacuum vane 6. At this time, the CCD camera 61 captures in real time whether there is a gap between the contact area of ​​the moving roller 413 and the vehicle-mounted vacuum vane 6. The tightness of the contact between the two is judged by image analysis, which indirectly reflects the flatness and wear of the surface of the vehicle-mounted vacuum vane 6. Simultaneously, when the C-shaped mounting plate 4 moves downward, it can also press the L-shaped positioning plate 5 downward, so that the L-shaped positioning plate 5 can move downward with the assistance of the drive slide 511 and the drive slider 512, thereby separating the L-shaped positioning plate 5 and the L-shaped placement plate 32, and allowing the L-shaped placement plate 32 to move forward with the assistance of the return spring 322 and the connecting rod 321. At this time, the moving distance of the L-shaped placement plate 32 can be monitored by the distance sensor 62 (the specific detection method of the distance sensor 62 is to measure the distances from the two ends of the vehicle vacuum vane 6 by two distance sensors 62, add the values ​​together, and then subtract the sum of the measured distances from the two ends of the standard part to determine whether there is wear and the degree of wear. This method is the prior art).

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated testing device for the wear resistance of a vehicle-mounted vacuum pump, characterized in that, It includes a vehicle-mounted vacuum pump testing platform (1), a vehicle-mounted vacuum vane (6), a CCD camera (61), and a distance sensor (62); the vehicle-mounted vacuum pump testing platform (1) is equipped with a vehicle-mounted vacuum vane (6), and a CCD camera (61) and a distance sensor (62) are respectively installed on both sides of the vehicle-mounted vacuum vane (6). The vehicle-mounted vacuum pump testing platform (1) is also equipped with a drive assembly, which is used to position the vehicle-mounted vacuum vane (6) and drive the vehicle-mounted vacuum vane (6) to rotate. The vehicle-mounted vacuum pump testing platform (1) is also equipped with two L-shaped placement plates (32), and each of the two L-shaped placement plates (32) is equipped with a moving roller (413). The moving roller (413) and the upper surface of the vehicle-mounted vacuum vane (6) are in contact with each other. The CCD camera (61) is used to inspect the degree of contact between the moving roller (413) and the vehicle-mounted vacuum vane (6). The distance sensor (62) is used to detect the distance between the two ends of the L-shaped placement plate (32) and the vehicle-mounted vacuum vane (6).

2. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 1, characterized in that, The vehicle-mounted vacuum pump testing platform (1) is provided with a sliding door (11) on the front side. The vehicle-mounted vacuum pump testing platform (1) is provided with an installation plate (13) at the bottom of its inner cavity. The vehicle-mounted vacuum pump testing platform (1) is also provided with a Z-shaped fixing plate (12). A circular placement plate (14) is provided above the installation plate (13). Multiple equidistant fitting slots (141) are provided on the circular placement plate (14). A vehicle-mounted vacuum vane (6) is placed above the circular placement plate (14).

3. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 1, characterized in that, The drive assembly includes a servo motor (2), which is located at the bottom of the Z-shaped fixing plate (12). The output end of the servo motor (2) is provided with a rotating rod (21). A rectangular mounting cylinder (211) is provided at the end of the rotating rod (21) away from the servo motor (2). A rectangular plug-in block (212) is inserted into the inner cavity of the rectangular mounting cylinder (211). A pressing plate (22) is provided at the bottom of the rectangular plug-in block (212). A plurality of equidistant mating blocks (221) are provided at the bottom of the pressing plate (22), and each mating block (221) is mated to the mating slot (141). A cylinder (23) and a telescopic rod (231) are also provided at the bottom of the Z-shaped fixing plate (12). The cylinder (23) and the telescopic rod (231) are symmetrical to each other.

4. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 3, characterized in that, The rectangular plug block (212) is provided with connecting plates (213) on its opposite side walls. The two connecting plates (213) are symmetrical to each other. A circular mounting plate (232) is provided above the two connecting plates (213). A circular groove (233) is provided above the circular mounting plate (232). Two movable sliders (234) are slidably arranged in the inner cavity of the circular groove (233). The two movable sliders (234) are symmetrical to each other. The upper parts of the two movable sliders (234) are respectively located at the output end of the cylinder (23) and the moving end of the telescopic rod (231).

5. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 2, characterized in that, The circular mounting plate (14) has two Z-shaped mounting plates (3) on its side wall. The two Z-shaped mounting plates (3) are symmetrical to each other. A circular fixing plate (31) is provided at the opposite end of the two Z-shaped mounting plates (3). The circular fixing plate (31) has two circular slots, which are symmetrical to each other. A connecting rod (321) is inserted into the two circular slots. The two connecting rods (321) are symmetrical to each other. An L-shaped mounting plate (32) is provided at the opposite end of the two connecting rods (321). A return spring (323) is provided on the side wall of the two L-shaped mounting plates (32) opposite to the circular fixing plate (31). The return spring (323) is sleeved on the connecting rod (321). Both ends are provided on the side wall of the L-shaped mounting plate (32) opposite to the circular fixing plate (31). A handle (322) is provided at the opposite end of the two connecting rods (321).

6. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 5, characterized in that, Above the two L-shaped mounting plates (32), there are also C-shaped mounting plates (4). The two C-shaped mounting plates (4) are symmetrical to each other. On the opposite side wall of the two C-shaped mounting plates (4), there are mounting bearings (41). Each mounting bearing (41) is symmetrical to each other. A rotating rod (412) is provided between each pair of mounting bearings (41), and a moving roller (413) is provided between each pair of rotating rods (412). A telescopic rod (241) is also provided on the two C-shaped mounting plates (4). A special-shaped fixing rod (24) is provided at the other end of the telescopic rod (241). The other end of the special-shaped fixing rod (24) is provided on the rectangular plug block (212). A CCD camera (61) is provided on the special-shaped fixing rod (24).

7. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 6, characterized in that, The outer walls of the two C-shaped mounting plates (4) are respectively provided with irregular mounting rods (42), and the two irregular mounting rods (42) are connected to each other, and a fixing block (421) is provided at the connection.

8. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 2, characterized in that, The mounting plate (13) is also provided with a shaped guide rail (43), and a fixing block (421) is slidably provided on the inner ring of the shaped guide rail (43).

9. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 2, characterized in that, The outer ring of the circular placement plate (14) is also provided with four connecting brackets (52), which are symmetrical to each other and have a folded mounting piece (51) at the end away from the circular placement plate (14).

10. The automated testing device for the wear resistance of a vehicle-mounted vacuum pump according to claim 9, characterized in that, Each of the folded mounting parts (51) has a drive groove (511) on one side wall near the connecting frame (52), and a drive slider (512) is slidably arranged in the inner cavity of the drive groove (511). An L-shaped positioning plate (5) is arranged at one end of the drive slider (512) away from the drive groove (511). Each L-shaped positioning plate (5) is symmetrical to each other. The top of each L-shaped positioning plate (5) is attached to the L-shaped placement plate (32). A mounting spring (513) is arranged at the bottom of each drive slider (512), and the other end of the mounting spring (513) is arranged at the bottom of the inner cavity of the drive groove (511).

Images