A vehicle optical assembly and a performance testing system therefor

Abstract

The application is suitable for the technical field of testing, and provides a vehicle optical assembly and a performance testing system thereof, which comprises an assembly component, the assembly component comprises a frame and a lampshade clamped on the frame, a bearing plate is installed between the frame and the lampshade, two headlamps are symmetrically installed inside the frame, a connecting frame is integrally formed on the top of the frame, two connecting holes are symmetrically formed in the side wall of the connecting frame, and the device solves the problem that two groups of headlamps need to be measured and offset one by one while being turned on at the same time, optical interference is caused, the testing accuracy is disturbed, and the offset of a single group is covered up when detecting the integrally packaged vehicle lamp. The device adjusts the height by using a driving motor, a gear and a rack structure, realizes angle rotation by using an arc-shaped limiting strip, adapts to the height difference between the high beam and the low beam in the headlamp, can shield the two groups of headlamps in turn, avoids mutual interference of the light, ensures that only the target light participates in the testing, and improves the reliability of the testing effect.

Description

Technical Field

[0001] This invention relates to the field of testing technology, and more specifically, to a vehicle optical assembly and its performance testing system. Background Technology

[0002] The automotive lighting assembly is a core system integrated at both ends of the vehicle's front, combining lighting function and aesthetic attributes. It contains a variety of key components: the bulb for core lighting, the reflector responsible for reflecting and converging light, the lens to optimize light focusing to avoid glare, and the high-transmittance lamp cover to protect internal components and shape the vehicle's appearance. Through low beams and high beams, it meets the driving lighting needs of different scenarios and ensures driving safety at night and in complex road conditions.

[0003] Existing vehicle headlight vibration testing equipment typically fixes the complete headlight assembly on a vibration platform to simulate the vibration environment that a vehicle may encounter during driving, thereby testing the integrated structural stability and component connection strength of the headlight assembly. In the testing process, before vibration, specialized optical inspection equipment is used to measure the headlight's illumination position parameters, including the low beam cutoff height. By comparing the illumination parameters before and after vibration, it is determined whether the individual headlights have experienced changes in illumination position due to issues such as reflector misalignment or lens shift caused by vibration. Simultaneously, it is checked whether the illumination height and angle of the left and right headlights remain consistent, thus assessing the structural reliability and lighting performance stability of the headlight assembly under vibration conditions.

[0004] Meanwhile, in actual testing scenarios, some vehicle lights adopt an integrated encapsulated design, integrating two sets of functionally independent headlights into a single lamp body. According to the Chinese standard title "Road Lighting Devices for Motorcycles and Mopeds" and standard number "GB19152-2025," the testing equipment needs to individually detect the positional offset of each set of headlights. However, during testing, both sets of headlights in the integrated encapsulated vehicle lights are always on simultaneously, causing the two beams to intersect and overlap on the illumination path, resulting in optical interference. Specifically, this manifests as alternating bright and dark spots at the beam edges, uneven light intensity distribution at the center, and some areas exhibiting abnormal brightness or darkness due to phase overlap. This interference interferes with the accuracy of the equipment's testing and masks the positional offset issues of individual headlights themselves. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a vehicle optical assembly and its performance testing system.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle optical assembly, comprising an assembly component, the assembly component including a frame and a lamp cover snapped onto the frame, a support plate installed between the frame and the lamp cover, two headlights symmetrically installed inside the frame, a connecting frame integrally formed on the top of the frame, and two connecting holes symmetrically opened on the side wall of the connecting frame.

[0007] The present invention is further configured such that: two position lights and two turn lights are symmetrically installed on the side of the support plate near the lamp cover, and the two position lights are located between the two turn lights.

[0008] A vehicle optical assembly performance testing system, equipped with the aforementioned vehicle optical assembly, includes a workbench and testing and positioning components mounted on top of the workbench.

[0009] The positioning assembly includes a stand mounted on the top of the workbench. A lifting cylinder is vertically mounted on the bottom of the stand. The piston rod end of the lifting cylinder is connected to a lifting seat. The lifting seat is slidably connected to the side wall of the stand. A vertical plate is connected to one side of the lifting seat. A positioning mechanism is engaged on the side of the vertical plate away from the stand. A guide groove is provided on the side of the vertical plate near the positioning mechanism. Two positioning posts are slidably connected inside the guide groove. Auxiliary holes are provided inside the two positioning posts and the side wall of the vertical plate. A positioning rod is inserted into the auxiliary hole. A rubber ring is provided at the end of the positioning rod. The rubber ring is interference-fitted with the auxiliary hole.

[0010] A blocking mechanism is installed at the bottom of the positioning mechanism. One end of the blocking mechanism extends to the side wall of the positioning mechanism. An assembly is provided between the blocking mechanism and the positioning mechanism. The assembly uses the positioning mechanism to assist in positioning. The diameter of the auxiliary hole is the same as the inner diameter of the connecting hole.

[0011] The present invention is further configured such that: the test component includes a test guide rail mounted on the top of the workbench and a slide table slidably connected to the bottom of the test guide rail, an electric slide rail is vertically mounted on the top of the slide table, and a photometric probe is slidably mounted on one side of the electric slide rail.

[0012] The present invention is further configured such that: the positioning mechanism includes a fixed plate disposed on one side of the upright plate; two brackets are connected to the side of the fixed plate near the positioning component; the two brackets are engaged with the top of the upright plate; a contouring block and a contouring protrusion are disposed on the side of the fixed plate away from the upright plate; the contouring protrusion is located at the bottom of the fixed plate and connected to the fixed plate; the contouring block is slidably connected to the side wall of the fixed plate; a lead screw is connected to the top of the contouring block; and the lead screw is threadedly connected to the top of the fixed plate.

[0013] The invention is further configured such that: the shielding mechanism includes a U-shaped rod connected to the bottom of the contoured protrusion, one end of the U-shaped rod extends to the side wall of the fixing plate, a box is fitted on the outer side wall of the U-shaped rod, a threaded hole is opened on one side of the box, a locking knob is threaded into the inside of the threaded hole, one end of the locking knob extends into the inside of the box, a sleeve is connected to the top of the box, and an auxiliary mechanism is connected to the outer side wall of the sleeve.

[0014] The present invention is further configured such that: a drive box is installed on one side of the box body, the drive box is connected to the box body, a drive motor is installed inside the drive box, a gear is connected to the output end of the drive motor, and multiple limiting strips are equidistantly connected to the outer side wall of the U-shaped rod, the multiple limiting strips are combined to form a rack structure, and the gear meshes with the rack structure.

[0015] The present invention is further configured such that: the auxiliary mechanism includes a baffle connected to the outer wall of the sleeve, and a through groove is provided on one side of the baffle.

[0016] The present invention is further configured such that: two sets of shielding covers are symmetrically installed on both sides of the baffle, and the shielding covers are connected to the side wall ends of the baffle.

[0017] The vehicle optical assembly performance testing system performs tests through the following steps:

[0018] S1. Place the assembly on an external vibration table and vibrate it while it is lit to simulate the impact of a bumpy road on the assembly. After vibration, place the assembly on the side wall of the positioning mechanism and use the positioning mechanism, positioning column, and positioning rod for auxiliary positioning to ensure that the assembly can maintain the accurate position during the test.

[0019] S2. After positioning, the blocking mechanism is located in the front center of the assembly. Then, the blocking mechanism is adjusted to one side of the assembly for blocking, and the illumination direction and brightness of the headlight are tested through the test component.

[0020] S3. Since the headlights are a lamp assembly structure, including high beams and low beams, during testing, the height and position of the blocking mechanism are adjusted to test the high beams and low beams one by one. After the test is completed, the blocking mechanism is rotated to block and test another set of headlights.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] (1) The height is adjusted by using a drive motor, gear and rack structure, and the arc-shaped limit bar realizes the angle rotation, which adapts to the height difference between the high beam and low beam of the headlight. It can block the two sets of headlights in turn to avoid mutual interference of the lights and ensure that only the target light participates in the test, thus improving the reliability of the test results.

[0023] (2) The height is adjusted by using the upright frame and lifting cylinder. The contour block and the contour pressure block fit the outline of the assembly component. With the interference fit of the positioning rod, an independent positioning station is formed, which solves the problem of position deviation caused by the loosening of traditional fixtures and ensures the accuracy of the test.

[0024] (3) By setting a retractable shield, only the low beam light shines through the slot to the photometric probe during the low beam test, and only the high beam light shines through the slot during the high beam test. At the same time, the shield prevents the lights from interfering with each other, thus avoiding the overlap of light spots during the high beam and low beam tests and distinguishing the headlight's own offset from stray light interference. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a vehicle optical assembly according to the present invention.

[0026] Figure 2 for Figure 1 A schematic diagram of the explosion structure.

[0027] Figure 3 This is a schematic diagram of the overall structure of the performance testing system in this invention.

[0028] Figure 4 This is a schematic diagram of the test component structure in this invention.

[0029] Figure 5 This is a schematic diagram of the positioning component structure in this invention.

[0030] Figure 6 This is a schematic diagram of the cooperative structure of the support plate, the shielding mechanism and the positioning mechanism in this invention.

[0031] Figure 7 This is a schematic diagram of the cooperation structure between the positioning column and the positioning mechanism in this invention.

[0032] Figure 8 This is a schematic diagram of the cooperative structure of the blocking mechanism and the positioning mechanism in this invention.

[0033] Figure 9 This is a schematic diagram of the internal structure of the box and sleeve in this invention.

[0034] Figure 10 This is a schematic diagram of the auxiliary mechanism structure in this invention.

[0035] Explanation of reference numerals in the attached drawings: 1. Assembly component; 11. Frame; 12. Lamp cover; 13. Connecting bracket; 14. Connecting hole; 15. Support plate; 16. Position light; 17. Turn signal; 18. Headlight;

[0036] 2. Workbench;

[0037] 3. Test components; 31. Test rail; 32. Slide table; 33. Electric slide rail; 34. Photometric probe;

[0038] 4. Positioning assembly; 41. Stand; 42. Lifting seat; 43. Lifting cylinder; 44. Stand plate; 45. Covering mechanism; 451. U-shaped rod; 452. Box body; 453. Locking knob; 454. Sleeve; 455. Auxiliary mechanism; 4551. Baffle; 4552. Cover; 4553. Through groove;

[0039] 456. Gear; 457. Limit bar; 458. Drive box;

[0040] 46. ​​Positioning mechanism; 461. Fixing plate; 462. Contouring protrusion; 463. Lead screw; 464. Contouring pressure block; 465. Hanger;

[0041] 47. Positioning pin; 48. Positioning rod; 49. Rubber ring. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0044] Please see Figures 1-10 The present invention provides the following technical solutions:

[0045] Example 1, see Figure 1 and Figure 2 A vehicle optical assembly includes an assembly component 1, which includes a frame 11 and a lamp cover 12 snapped onto the frame 11. A support plate 15 is installed between the frame 11 and the lamp cover 12. Two headlights 18 are symmetrically installed inside the frame 11. The headlights 18 consist of a low beam and a high beam, and the headlights 18 are connected to the inside of the frame 11 by screws and brackets. The lamp cover 12 covers the outside of the headlights 18, thereby providing protection for the headlights 18.

[0046] See Figure 1 and Figure 2The top of the frame 11 is integrally formed with a connecting bracket 13. Two connecting holes 14 are symmetrically opened on the side wall of the connecting bracket 13. The connecting bracket 13 and the connecting holes 14 are adapted to the vehicle's headlight mounting position, facilitating the installation of the assembly 1 on the vehicle. Two position lights 16 and two turn signals 17 are symmetrically mounted on the side of the support plate 15 near the lamp cover 12. The two position lights 16 are located between the two turn signals 17. The position lights 16 are used to indicate the vehicle's position, improving the vehicle's visibility at night or in poor visibility conditions, ensuring driving safety. The turn signals 17 are used to provide clear turn signals when the vehicle turns or changes lanes, alerting surrounding vehicles and pedestrians and preventing traffic accidents. Furthermore, both the position lights 16 and turn signals 17 are protected by the lamp cover 12, which not only enhances their durability but also makes the light effect more focused, improving lighting efficiency and driving safety.

[0047] The vehicle optical assembly performance testing system is equipped with the aforementioned vehicle optical assembly, including a workbench 2 and a test component 3 mounted on top of the workbench 2. The test component 3 is used to test the position and brightness of the headlight 18. First, the assembly 1 is placed on an external vibration table, causing the assembly 1 to vibrate in the lit state to simulate the impact of bumpy road surfaces on the assembly 1. After the vibration is completed, the test component 3 tests the position and brightness of the headlight 18 relative to the frame 11 after vibration.

[0048] See Figure 3 and Figure 4 The specific structure of test component 3 is as follows:

[0049] The test assembly 3 includes a test rail 31 mounted on the top of the workbench 2 and a slide table 32 slidably connected to the bottom of the test rail 31. An electric slide rail 33 is vertically mounted on the top of the slide table 32, and a photometric probe 34 is slidably mounted on one side of the electric slide rail 33. The slide table 32 slides at the bottom of the test rail 31, thereby adjusting the position of the electric slide rail 33. When the electric slide rail 33 moves, it drives the photometric probe 34 to move, thereby adjusting the position of the photometric probe 34, which facilitates subsequent testing of the position and brightness of the headlight 18.

[0050] See Figure 3 and Figure 4 The photometric probe 34 consists of an optical measurement system, including an optical path structure, an imaging system, a data acquisition system, and a measurement system. The photometric probe 34 has two CCD cameras installed inside, which can measure the light intensity and illumination angle of the incoming light beam. The optical path of the photometric probe 34 adopts a beam splitting method, allowing the light emitted from the headlight 18 to pass through a frosted glass at a 45° angle to the horizontal, splitting the light into two parts. One part is reflected, and the other part is converged by a Fresnel lens. The two CCD cameras respectively collect different light spot images for light tracking and measurement calculation.

[0051] During the test, if the headlights 18 (high beam and low beam) inside the headlights are shifted, the direction and position of the illumination will also change. The CCD camera can be used to determine whether the headlights 18 have shifted or become loose after the vibration. If the illumination direction is shifted or the brightness does not meet the standard, it is a defective product. If there is no shift or the brightness meets the standard, it is a good product.

[0052] In Example 2, the test component 3 measures the position offset of the two sets of headlights 18 one by one. Since the assembly component 1 consists of two sets of headlights 18, and both sets of headlights 18 are encapsulated inside the frame 11, when the two sets of headlights 18 are turned on, the lights of the two sets of headlights 18 will interfere with each other, affecting the test results.

[0053] See Figure 3 Therefore, a positioning component 4 is installed on the top of the workbench 2. The positioning component 4 is used to position the assembly component 1 to facilitate the subsequent testing of the test component 3.

[0054] See Figures 5-9 The specific structure of positioning component 4 is as follows:

[0055] The positioning component 4 includes a stand 41 mounted on the top of the workbench 2. A lifting cylinder 43 is vertically mounted on the bottom of the stand 41. A lifting seat 42 is connected to the piston rod end of the lifting cylinder 43. The lifting seat 42 is slidably connected to the side wall of the stand 41. A vertical plate 44 is connected to one side of the lifting seat 42. A positioning mechanism 46 is engaged on the side of the vertical plate 44 away from the stand 41. The lifting cylinder 43 is used to drive the lifting seat 42 to slide on the stand 41, thereby adjusting the height of the lifting seat 42, the vertical plate 44 and the positioning mechanism 46. The positioning mechanism 46 is used to position the assembly 1. When the height of the positioning mechanism 46 is adjusted, the height of the assembly 1 is adjusted synchronously, so that the assembly 1 can be adjusted to the movement range of the photometric probe 34, which facilitates the subsequent testing of the assembly 1 by the photometric probe 34.

[0056] In traditional methods, the headlight assembly is fixed to a vibration platform by a fixture and tested directly on the platform. During prolonged, high-intensity vibration, the fixture may become slightly loose, or the flatness of the vibration platform itself may deform slightly due to vibration. This can cause errors in the relative position between the headlight and the vibration platform, resulting in errors in the headlight's position in the front-back, up-down, and left-right directions. These changes in the testing environment can lead to errors in the final judgment.

[0057] In this embodiment, the positioning mechanism 46 enables rapid clamping and precise positioning of the assembly component 1, and adaptively fits the shape contour of the assembly component 1, thus solving the problem of positional displacement caused by easy loosening of traditional clamps.

[0058] Before entering the irradiation performance test stage, the assembly 1 is removed from the vibration platform as a whole and transferred to the independent positioning mechanism 46 station. This operation avoids the drawback of the traditional test where vibration and testing are carried out simultaneously. On the one hand, it avoids the influence of the slight deformation of the platform flatness on the initial position of the frame 11 of the assembly 1 after the vibration platform has been operating at high intensity for a long time. On the other hand, it also prevents the assembly 1 from being displaced due to the loosening of the clamps during the vibration process.

[0059] See Figures 5-9 The structure of the positioning mechanism 46 is as follows:

[0060] The positioning mechanism 46 includes a fixing plate 461 disposed on one side of the upright plate 44. Two hangers 465 are connected to the side of the fixing plate 461 closest to the positioning component 4. The fixing plate 461 is hung on the side wall of the upright plate 44 using the two hangers 465, thereby engaging and positioning the fixing plate 461. The two hangers 465 are engaged with the top of the upright plate 44. A contouring block 464 and a contouring protrusion 462 are disposed on the side of the fixing plate 461 furthest from the upright plate 44. A concave portion is disposed in the center of the bottom surface of the frame 11, and an upper concave portion is disposed in the center of the top surface of the frame 11. The protrusion 462 corresponds to the lower concave part, and the contouring block 464 corresponds to the upper concave part. When it is necessary to position the assembly 1, the operator places the frame 11 between the contouring block 464 and the contouring protrusion 462, and the frame 11 is placed on top of the contouring protrusion 462. The contouring protrusion 462 is located at the bottom of the fixing plate 461 and is connected to the fixing plate 461. The contouring block 464 is slidably connected to the side wall of the fixing plate 461. The top of the contouring block 464 is connected to the lead screw 463, and the lead screw 463 is threadedly connected to the top of the fixing plate 461.

[0061] After the frame 11 is placed on top of the contouring protrusion 462, the contouring pressure block 464 is moved down by rotating the lead screw 463. The contouring pressure block 464 presses on the top of the frame 11. The contouring protrusion 462 and the contouring pressure block 464 cooperate to complete the initial positioning. In this state, the frame 11 remains stable in the vertical direction.

[0062] A guide groove is provided on the side of the upright plate 44 near the positioning mechanism 46. Two positioning posts 47 are slidably connected inside the guide groove. The positioning posts 47 can be positioned in the guide groove by locking bolts. Auxiliary holes are provided on the side walls of the two positioning posts 47. Positioning rods 48 are inserted into the auxiliary holes. Rubber rings 49 are provided at the ends of the positioning rods 48. The rubber rings 49 are interference-fitted with the auxiliary holes. When the frame 11 is initially positioned by the contouring protrusion 462 and the contouring pressure block 464, the connecting frame 13 at the top of the frame 11 is attached to the side wall of the positioning post 47. In this state, the frame 11 can remain stable in the front and back directions.

[0063] The operator slides the positioning pin 47 into the corresponding guide groove. When the connecting hole 14 is opposite to the positioning pin 47, the positioning rod 48 passes through the interior of the connecting hole 14 and the auxiliary hole. During the fitting process, the rubber ring 49 is interference-fitted with the connecting hole 14. The diameter of the auxiliary hole is the same as the inner diameter of the connecting hole 14. The rubber ring 49 passes through the connecting hole 14 under the compression state. Then the rubber ring 49 can block the connecting frame 13 in the opposite direction. And the two positioning rods 48 cooperate to limit the overall positioning of the assembly 1. The positioning rods 48 can keep the frame 11 stable in the left and right directions. At this time, since the frame 11 has been stabilized in the up and down and front and back directions, the positioning pin 47, the contouring protrusion 462 and the contouring pressure block 464 cooperate to keep the frame 11 stable as a whole.

[0064] See Figures 5-9 A shielding mechanism 45 is installed at the bottom of the positioning mechanism 46. One end of the shielding mechanism 45 extends to the side wall of the positioning mechanism 46. The assembly 1 is disposed between the shielding mechanism 45 and the positioning mechanism 46. The assembly 1 uses the positioning mechanism 46 for positioning assistance. The shielding mechanism 45 is used to shield the headlight 18 to be tested to ensure that the surrounding light will not affect the illumination of the test headlight 18.

[0065] See Figures 5-9 The specific structure of the shielding mechanism 45 is as follows:

[0066] The shielding mechanism 45 includes a U-shaped rod 451 connected to the bottom of the contoured protrusion 462. One end of the U-shaped rod 451 extends to the side wall of the fixing plate 461. A housing 452 is fitted onto the outer side wall of the U-shaped rod 451. A threaded hole is provided on one side of the housing 452. A locking knob 453 is threaded into the inside of the threaded hole. One end of the locking knob 453 extends into the inside of the housing 452. A sleeve 454 is connected to the top of the housing 452. An auxiliary mechanism 455 is connected to the outer side wall of the sleeve 454. 454 and housing 452 can rotate on the outer wall of U-shaped rod 451, thereby adjusting the angle of auxiliary mechanism 455. Auxiliary mechanism 455 blocks the headlight 18 to be tested, ensuring that the surrounding light does not affect the illumination of the headlight 18. When the auxiliary mechanism 455 is in the blocking state, the operator can tighten the angle of auxiliary mechanism 455 by turning the locking knob 453. The end of the locking knob 453 is attached to the outer wall of U-shaped rod 451.

[0067] See Figures 5-9 A drive box 458 is installed on one side of the housing 452. The drive box 458 is connected to the housing 452. A drive motor is installed inside the drive box 458. A gear 456 is connected to the output end of the drive motor. Multiple limiting strips 457 are equidistantly connected to the outer wall of the U-shaped rod 451. The multiple limiting strips 457 are combined to form a rack structure. The gear 456 meshes with the rack structure.

[0068] Since the headlights 18 consist of high beams and low beams, and the high beams and low beams have different heights—that is, the high beams are for long-distance, wide-area illumination, while the low beams are for short-distance, glare-free illumination—the installation height of the high beams is higher than that of the low beams. When the auxiliary mechanism 455 is used for blocking, it adjusts according to the height of the high beams and low beams on the same set of headlights 18. The drive motor inside the drive box 458 drives the gear 456 to rotate, causing the drive box 458 and the sleeve 454 to rise and fall, thereby adjusting the height of the auxiliary mechanism 455.

[0069] See Figure 10 The auxiliary mechanism 455 includes a baffle 4551 connected to the outer wall of the sleeve 454. A through groove 4553 is provided on one side of the baffle 4551. The baffle 4551 is designed to block the headlight 18, and the headlight 18 can be illuminated through the inside of the through groove 4553, which facilitates subsequent illumination tests.

[0070] During illumination, by adjusting the height of the auxiliary mechanism 455, the height of the through slot 4553 relative to the headlight 18 can be adjusted, that is, to adapt to the height of the high beam and low beam in the same headlight 18.

[0071] In addition, during the angle adjustment process, the auxiliary mechanism 455 sets the limiting strip 457 to an arc shape. The gear 456 can not only move on multiple limiting strips 457, but also, when the angle of the auxiliary mechanism 455 changes, the auxiliary mechanism 455 drives the sleeve 454, the housing 452, the drive box 458, and the gear 456 to rotate around. The gear 456 can rotate around the arc-shaped limiting strip 457, ensuring that the housing 452 and the sleeve 454 can achieve the height adjustment function while also ensuring that the auxiliary mechanism 455 can change its angle. After blocking one set of headlights 18, the auxiliary mechanism 455 can block another set of headlights 18 by rotating, which facilitates the subsequent testing of the test component 3. That is, when one set of headlights 18 is being tested, the auxiliary mechanism 455 blocks this set of headlights 18 to reduce the impact of external light on the test.

[0072] Specifically, by setting up the positioning component 4, the height is adjusted using the stand 41 and the lifting cylinder 43. The contoured protrusion 462 and the contoured pressure block 464 fit the contour of the assembly component 1, and the positioning rod 48 is used for interference fit and limit, forming an independent positioning station. This solves the problem of positional deviation caused by the easy loosening of traditional fixtures, ensuring the accuracy of the test. The height is adjusted using the drive motor, gear 456 and rack structure, and the arc-shaped limit bar 457 realizes the angle rotation, adapting to the height difference between the high beam and low beam of the headlight 18. It can block the two sets of headlights 18 in sequence to avoid mutual interference of the lights, ensuring that only the target light participates in the test, thus improving the reliability of the test results.

[0073] In Example 3, since each headlight group 18 is composed of high beam and low beam respectively, when the low beam is turned on and tested, the high beam is in the off state. When the high beam is turned on and tested, the low beam and high beam will be lit at the same time. At this time, the high beam and low beam will affect each other, causing the light spots to overlap, making it impossible to distinguish between the headlight's own offset and stray light interference.

[0074] For this purpose, please refer to Figure 8 and Figure 10 Two sets of shields 4552 are symmetrically installed on both sides of the baffle 4551, that is, two sets of shields 4552 are provided on each side of the baffle 4551. The shields 4552 are connected to the side wall end of the through groove 4553. The shields 4552 are used to shield the through groove 4553. The shields 4552 can be extended and retracted. By adjusting the folding or unfolding of the two sets of shields 4552 on one side of the baffle 4551, the through size of the through groove 4553 can be adjusted. The size of the through groove 4553 is larger than the width and length of the headlight 18.

[0075] After the baffle 4551 is moved to the position of the headlight 18 under test, the position of the through slot 4553 is set opposite to the headlight 18 under test. Then, the two sets of shields 4552 on both sides of the baffle 4551 are pulled so that the unobstructed through position of the through slot 4553 is at the low beam position of the headlight 18 under test. The low beam illuminates the light through the through slot 4553 onto the photometric detector 34, and the through slot 4553 does not block the light from shining out, while the high beam position is blocked to prevent the low beam and high beam from interfering with each other. The photometric detector 34 tests the illumination direction and brightness of the low beam of the headlight 18. After the low beam test is completed, the blocking position of the shield 4552 is adjusted, and the overall height of the auxiliary mechanism 455 is adjusted by the gear 456 moving on multiple limit bars 457. Then, the through slot 4553 is adjusted to face the high beam. In this state, the light from the high beam shines through the through slot 4553 onto the photometric sensor 34. The photometric sensor 34 tests the illumination direction and brightness of the high beam of the headlight 18. After one set of headlights 18 is tested, the baffle 4551 is swung to the position of another set of headlights 18, and then the low beam and high beam of this set of headlights 18 are tested.

[0076] By setting the shield 4552, the high beam illumination area is ensured to be bright enough, and the illuminance of key points meets the standards. Under the high beam test conditions, the low beam position (dark area) is dark enough, and there is no excessive glare, thereby improving the accuracy of the light test.

[0077] Example 4: The vehicle optical assembly performance testing system is tested through the following steps:

[0078] S1. Place the assembly 1 on the external vibration table and make the assembly 1 vibrate in the lit state to simulate the impact of the bumpy road on the assembly 1. After the vibration is completed, place the assembly 1 on the side wall of the positioning mechanism 46 and use the positioning mechanism 46, positioning column 47 and positioning rod 48 for auxiliary positioning so that the assembly 1 can maintain the accurate position during the test.

[0079] The more specific steps in S1 are as follows:

[0080] S11. Place the assembly 1 on an external vibration table, causing the assembly 1 to vibrate in the lit state to simulate the impact of a bumpy road on the assembly 1.

[0081] S12. After vibration, the assembly 1 is placed between the contouring protrusion 462 and the contouring pressure block 464, that is, the bottom of the frame 11 is in contact with the contouring protrusion 462. Then, the connecting hole 14 is fitted onto the outer wall of the positioning rod 48. During the fitting process, the rubber ring 49 is interference-fitted with the connecting hole 14. The rubber ring 49 passes through the connecting hole 14 under the compression state. Then, the rubber ring 49 can block the connecting frame 13 in the opposite direction, and the two positioning rods 48 cooperate to limit the overall position of the assembly 1.

[0082] S13. Then, by rotating the lead screw 463, the contouring block 464 is moved down and pressed on the top of the frame 11. The contouring protrusion 462 and the contouring block 464 cooperate to complete the positioning.

[0083] S2. After positioning, the blocking mechanism 45 is in the front middle position of the assembly 1. Then, the blocking mechanism 45 is adjusted to one side of the assembly 1 for blocking, and the illumination direction and brightness of the headlight 18 are tested by the test component 3.

[0084] The more specific steps of S2 are as follows:

[0085] S21. After positioning, the blocking mechanism 45 is in the front middle position of the assembly 1. Then, the auxiliary mechanism 455 is moved, that is, the auxiliary mechanism 455 drives the sleeve 454 and the housing 452 to rotate on the outer side wall of the U-shaped rod 451, so that the baffle 4551 can block one of the headlights 18.

[0086] S22. Then, the electric slide rail 33 and the slide table 32 are pushed to slide on the test guide rail 31, thereby moving the positioning component 4 to the front of the baffle 4551. Then, the electric slide rail 33 drives the photometric probe 34 to rise and fall, thereby pushing the photometric probe 34 to one end of the through slot 4553. After the headlight 18 is turned on, the light shines on the photometric probe 34 through the through slot 4553. The photometric probe 34 tests the illumination direction and brightness of the headlight 18.

[0087] S3. Since the headlight 18 is a lamp assembly structure, including high beam and low beam, during testing, the height and blocking position of the blocking mechanism 45 are adjusted to test the high beam and low beam one by one. After the test is completed, the other headlight 18 is blocked and tested by rotating the blocking mechanism 45.

[0088] The more specific steps for S3 are as follows:

[0089] S31. Since the headlight 18 is a lamp assembly structure, including high beam and low beam, during testing, the baffle 4551 is first moved to the position of the headlight 18 to be tested. Then, by adjusting the extension length of the baffle 4552, the unobstructed through-hole size of the slot 4553 is adjusted. After the adjustment is completed, the light from the low beam shines through the unobstructed through-hole of the slot 4553 onto the photometric detector 34. The photometric detector 34 tests the illumination direction and brightness of the low beam of the headlight 18.

[0090] S32. After the low beam test is completed, adjust the position of the baffle 4551 and adjust the overall height of the auxiliary mechanism 455 by moving the gear 456 on multiple limit bars 457. Then adjust the through slot 4553 to face the high beam. In this state, the light from the high beam shines through the through slot 4553 onto the photometric sensor 34. The photometric sensor 34 tests the illumination direction and brightness of the high beam of the headlight 18.

[0091] S33. The through slot 4553 is blocked by the shield 4552 to prevent the low beam and high beam of the same group of headlights 18 from affecting each other. After the test is completed, the baffle 4551 is swung to the position of another group of headlights 18 and the low beam and high beam of this group of headlights 18 are tested.

[0092] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. A vehicle optical assembly performance testing system, characterized in that: The vehicle optical assembly to be tested includes an assembly component (1), which includes a frame (11) and a lamp cover (12) snapped onto the frame (11). A support plate (15) is installed between the frame (11) and the lamp cover (12). Two headlights (18) are symmetrically installed inside the frame (11). A connecting frame (13) is integrally formed on the top of the frame (11). Two connecting holes (14) are symmetrically opened on the side wall of the connecting frame (13). Two position lights (16) and two turn lights (17) are symmetrically installed on the side of the support plate (15) near the lamp cover (12), with the two position lights (16) located between the two turn lights (17); The testing system includes a workbench (2) and a testing component (3) and a positioning component (4) mounted on top of the workbench (2). The positioning component (4) includes a stand (41) installed on the top of the workbench (2). A lifting cylinder (43) is vertically installed at the bottom of the stand (41). A lifting seat (42) is connected to the piston rod end of the lifting cylinder (43). The lifting seat (42) is slidably connected to the side wall of the stand (41). A vertical plate (44) is connected to one side of the lifting seat (42). A positioning mechanism (46) is engaged on the side of the vertical plate (44) away from the stand (41). A guide groove is provided on the side of the vertical plate (44) near the positioning mechanism (46). Two positioning columns (47) are slidably connected inside the guide groove. An auxiliary hole is provided on the side wall of each of the two positioning columns (47). A positioning rod (48) is inserted into the auxiliary hole. A rubber ring (49) is provided at the end of the positioning rod (48). The rubber ring (49) is interference-fitted with the auxiliary hole. A shielding mechanism (45) is installed at the bottom of the positioning mechanism (46). One end of the shielding mechanism (45) extends to the side wall of the positioning mechanism (46). An assembly (1) is provided between the shielding mechanism (45) and the positioning mechanism (46). The assembly (1) uses the positioning mechanism (46) for assisted positioning. The diameter of the auxiliary hole is the same as the inner diameter of the connecting hole (14).

2. The vehicle optical assembly performance testing system according to claim 1, characterized in that: The test assembly (3) includes a test rail (31) mounted on the top of the workbench (2) and a slide (32) slidably connected to the bottom of the test rail (31). An electric slide rail (33) is vertically mounted on the top of the slide rail (32), and a photometric probe (34) is slidably mounted on one side of the electric slide rail (33).

3. The vehicle optical assembly performance testing system according to claim 1, characterized in that: The positioning mechanism (46) includes a fixed plate (461) disposed on one side of the upright plate (44). Two brackets (465) are connected to the side of the fixed plate (4) near the positioning component (4). The two brackets (465) are snapped into the top of the upright plate (44). A contouring block (464) and a contouring protrusion (462) are disposed on the side of the fixed plate (461) away from the upright plate (44). The contouring protrusion (462) is located at the bottom of the fixed plate (461) and connected to the fixed plate (461). The contouring block (464) is slidably connected to the side wall of the fixed plate (461). A lead screw (463) is connected to the top of the contouring block (464). The lead screw (463) is threadedly connected to the top of the fixed plate (461).

4. The vehicle optical assembly performance testing system according to claim 3, characterized in that: The shielding mechanism (45) includes a U-shaped rod (451) connected to the bottom of the contoured protrusion (462). One end of the U-shaped rod (451) extends to the side wall of the fixing plate (461). A box (452) is fitted on the outer side wall of the U-shaped rod (451). A threaded hole is opened on one side of the box (452). A locking knob (453) is threaded inside the threaded hole. One end of the locking knob (453) extends into the inside of the box (452). A sleeve (454) is connected to the top of the box (452). An auxiliary mechanism (455) is connected to the outer side wall of the sleeve (454).

5. The vehicle optical assembly performance testing system according to claim 4, characterized in that: A drive box (458) is installed on one side of the housing (452). The drive box (458) is connected to the housing (452). A drive motor is installed inside the drive box (458). A gear (456) is connected to the output end of the drive motor. Multiple limiting strips (457) are equidistantly connected to the outer wall of the U-shaped rod (451). The multiple limiting strips (457) are combined to form a rack structure. The gear (456) meshes with the rack structure.

6. The vehicle optical assembly performance testing system according to claim 5, characterized in that: The auxiliary mechanism (455) includes a baffle (4551) connected to the outer wall of the sleeve (454), and a through groove (4553) is provided on one side of the baffle (4551).

7. The vehicle optical assembly performance testing system according to claim 6, characterized in that: Two sets of shields (4552) are symmetrically installed on both sides of the baffle (4551), and the shields (4552) are connected to the side wall ends of the baffle (4551).

8. The vehicle optical assembly performance testing system according to any one of claims 1-7, characterized in that, The testing system is tested through the following steps: S1. Place the assembly (1) on an external vibration table and make the assembly (1) vibrate in the lit state to simulate the impact of the bumpy road on the assembly (1). After the vibration is completed, place the assembly (1) on the side wall of the positioning mechanism (46) and use the positioning mechanism (46), positioning column (47), and positioning rod (48) for auxiliary positioning so that the assembly (1) can maintain the accurate position during the test. S2. After positioning, the blocking mechanism (45) is in the middle of the front of the assembly (1). Then, the blocking mechanism (45) is adjusted to one side of the assembly (1) for blocking, and the illumination direction and brightness of the headlight (18) are tested by the test component (3). S3. Since the headlight (18) is a lamp assembly structure, including high beam and low beam, during the test, the height and blocking position of the blocking mechanism (45) are adjusted, and the high beam and low beam are tested one by one. After the test is completed, the other headlight (18) is blocked and tested by rotating the blocking mechanism (45).

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