Car lamp simulation test device

Abstract

The invention discloses a vehicle lamp simulation test device, which comprises a test cabinet, a test chamber and a simulation equipment chamber are arranged in the test cabinet, and one end in the test chamber is provided with a mobile carrier assembly for clamping a vehicle lamp; a high and low beam intensity detection assembly is distributed at the other end in the test chamber; an illumination channel simulation assembly is arranged in the middle of the test chamber, and the illuminance of the illumination channel simulation assembly is gradually enhanced when the illumination channel simulation assembly is separated or gradually darkened when the illumination channel simulation assembly is combined; the rainfall simulation assembly and the air volume simulation assembly are arranged in the test chamber; a water supply circulation device for supplying water to the rainfall simulation assembly and an air supply device for supplying variable air volume to the air volume simulation assembly are arranged in the simulation device chamber. The illumination channel simulation assembly can simulate a test channel in which the external illuminance is gradually enhanced or gradually darkened, the requirement for far and near illuminance tests of the vehicle lamp under different external illumination conditions is met, and through cooperation of all the assemblies, in one test device, different vehicle lamps can be tested, and the test efficiency is improved. Therefore, the test work of the vehicle lamp can be better satisfied.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive component testing, and particularly relates to a headlight simulation testing device. Background Art

[0002] A headlight refers to a lighting device installed on both sides of the front of an automobile and used for illuminating the road at night. It has functions such as high and low beam lighting and turning lights. Among them, for the use of high and low beams of headlights, illuminance testing is required. When currently testing the illumination intensity of the high and low beams of headlights, it is generally carried out in a closed test chamber that cannot be automatically opened and closed to adjust the illumination intensity of the high and low beams of the moving headlights. However, with the development of headlight technology, headlights have become intelligent. Therefore, it is difficult to meet the corresponding test requirements when conducting lighting tests in a fixed test chamber. Based on this, it is necessary to develop a headlight simulation testing device with better usability. Summary of the Invention

[0003] Aiming at the above problems, the purpose of the present invention is to provide a headlight simulation testing device that can implement multiple test modes for the illumination intensity of vehicle headlights.

[0004] The headlight simulation testing device includes a test cabinet, which is divided into a test chamber and a simulation equipment chamber in the up and down direction.

[0005] At one end of the test chamber, a moving carrier assembly for clamping the headlight is provided;

[0006] At the other end of the test chamber, a high and low beam intensity detection assembly is arranged;

[0007] In the middle of the test chamber, a light channel simulation assembly is provided, where the illuminance gradually increases when separated or gradually decreases when combined. In the light channel simulation assembly, a photosensitive component for detecting the illuminance in the test channel is provided;

[0008] A rain volume simulation assembly for simulating the rain state is arranged in the test chamber;

[0009] A wind volume simulation assembly for simulating air supply towards the headlight direction is arranged in the test chamber;

[0010] In the simulation equipment chamber, a water supply circulation device for supplying water to the rain volume simulation assembly and a air supply device for supplying variable air volume to the wind volume simulation assembly are arranged.

[0011] Based on the above test device, the following test modes can be formed for the headlight to be tested:

[0012] Test mode 1: When performing irradiation tests on the high and low beams of a manual vehicle lamp, by simulating the alignment of the light channel simulation components, a test channel that is open at both ends is directly formed. The moving stage component drives the vehicle lamp into one end of the test channel, and the high and low beam intensity detection component extends into the other end of the test channel. By switching the irradiation of the high and low beams of the vehicle lamp, the high and low beam intensity detection component obtains the irradiation intensity of the high and low beams of the vehicle lamp;

[0013] Test mode 2: When performing irradiation tests on the high and low beams of an automatic vehicle lamp, the moving stage component drives the automatic vehicle lamp into the test position, and the high and low beam intensity detection component is in the position to be tested. By simulating the alignment of the light channel simulation components, the test channel is gradually formed. During the formation of the test channel, when the light intensity detected by the photosensitive component reaches the set value, the automatic vehicle lamp automatically turns on and, through the switching of the irradiation of the high and low beams, the high and low beam intensity detection component obtains the irradiation intensity of the high and low beams of the automatic vehicle lamp;

[0014] Test mode 3: In the case of test mode 1 or test mode 2, when detecting the light irradiation of the vehicle lamp in rainy weather, different rainfall amounts are simulated in the test channel by the rainfall simulation component, which is placed between the vehicle lamp and the high and low beam intensity detection component. The high and low beam intensity detection component obtains the irradiation intensity of the high and low beams of the vehicle lamp;

[0015] Test mode 4: In the case of test mode 3, by using a blowing device to blow air towards the surface of the vehicle lamp, water is made to fall onto the surface of the vehicle lamp, and the high and low beam intensity detection component obtains the irradiation intensity of the high and low beams of the vehicle lamp.

[0016] As one of the implementation solutions, the moving stage component includes a fixed stage fixedly arranged in the test cabinet, a sliding stage slidably arranged on the fixed stage, and a sliding drive component assembled on the fixed stage for driving the sliding stage to slide back and forth on the fixed stage;

[0017] An assembly template is fixedly arranged on the sliding stage. The assembly template is fixedly assembled on the sliding stage through an L-shaped mounting bracket. A plurality of connecting lock rods with different lengths are passed through the assembly template. The inner ends of the connecting lock rods pass through the assembly holes of the connecting ears on the outer periphery of the vehicle lamp to be tested. A pre-tightening spring is sleeved on each connecting lock rod, and the pre-tightening spring is compressed between the connecting ear on the outer periphery of the vehicle lamp and the inner side surface of the assembly template; the outer ends of the connecting lock rods are located outside the assembly template and are equipped with locking nuts.

[0018] In one of the embodiments, the high and low beam intensity detection component includes a detection movable plate and a detection fixed plate. The detection fixed plate is fixedly assembled in the test cabinet. Four guide posts arranged in the horizontal direction are fixedly provided on the inner side of the detection fixed plate. The detection movable plate is penetrated through the four guide posts. A telescopic driver is assembled between the inner side of the detection fixed plate and the inner side of the detection movable plate to drive the detection movable plate to slide back and forth on the guide posts. A high beam intensity detection sensor and a low beam intensity detection sensor for receiving the illumination of the vehicle lamp are installed on the outer side of the detection movable plate.

[0019] In one of the embodiments, the light channel simulation component includes a first semi-open component, a second semi-open component, a first clutch driver, and a second clutch driver. The opening of the first semi-open component is arranged towards the opening direction of the second semi-open component. The first semi-open component and the second semi-open component have the same structure, and the arrangement directions of the openings are opposite.

[0020] Both ends of the first semi-open component and both ends of the second semi-open component are respectively arranged on the first clutch driver and the second clutch driver, and the first clutch driver and the second clutch driver drive the first semi-open component and the second semi-open component to form a separating movement.

[0021] The first semi-open component includes a first C-shaped moving block, a second C-shaped moving block, and a C-shaped light-shielding component.

[0022] A first C-shaped flared connecting sleeve is fixedly arranged inside the first C-shaped moving block. Second C-shaped flared connecting sleeves are respectively fixedly arranged inside the second C-shaped moving blocks. Both ends of the C-shaped light-shielding component are connected with the flared ends of the first C-shaped flared connecting sleeve and the second C-shaped flared connecting sleeve through detachable connecting cards.

[0023] In one of the embodiments, the first C-shaped flared connecting sleeve includes a first C-shaped connecting part, a flared connecting part, and a second C-shaped connecting part. The second C-shaped flared connecting sleeve has the same structure as the first C-shaped flared connecting sleeve.

[0024] The first C-shaped connecting part is fixedly arranged on the inner wall of the first C-shaped moving block. The small end of the flared connecting part is fixedly connected to one side of the first C-shaped connecting part, and the large end of the flared connecting part is fixedly connected to the second C-shaped connecting part.

[0025] An assembly card slot is formed on the inner wall of the second C-shaped connecting part. The assembly card slot extends to the opening end face of the second C-shaped connecting part. The assembly card slot is at least arranged on the top wall and the bottom wall inside the second C-shaped connecting part. At least the assembly card slot on the bottom wall inside the second C-shaped connecting part is arranged in a downward inclined manner.

[0026] The detachable connecting card is inserted into the assembly card slot, and one end of the detachable connecting card is bent and turned over to the outside of the second C-shaped connecting part.

[0027] The detachable connecting clip is formed by fixedly connecting a first C-shaped strip and a second C-shaped strip with countersunk screws, and a clamping space for clamping the end of the C-shaped light-shielding component is formed between the first C-shaped strip and the second C-shaped strip.

[0028] In one of the embodiments, the rainfall simulation assembly includes a first rainfall simulation pipe group and a second rainfall simulation pipe group with different water spraying amounts. The first rainfall simulation pipe group and the second rainfall simulation pipe group respectively include electromagnetic valves, water distribution pipes, vertical pipes, and a plurality of sprayers.

[0029] The water distribution pipe is arranged horizontally, a plurality of sprayers are connected in parallel below the water distribution pipe, the vertical pipe is arranged vertically above the water distribution pipe and is connected to the middle position of the water distribution pipe, and the electromagnetic valve is installed on the vertical pipe.

[0030] When the C-shaped light-shielding components in the first semi-open component and the C-shaped light-shielding components in the second semi-open component are in a combined state, the water distribution pipe is located in the upper part of the test channel formed by the two C-shaped light-shielding components.

[0031] The opening edges at the upper parts of the two C-shaped light-shielding components have semi-circular avoidance grooves for avoiding the vertical pipe.

[0032] In one of the embodiments, the water supply and circulation device includes a water receiving tank body, a filter cylinder, a circulation water tank, and a water pump.

[0033] The water receiving tank body is located below the rainfall simulation assembly and is used to receive the water sprayed by the rainfall simulation assembly. Two opposite edge parts of the water receiving tank body form bearing edge parts bent outward. In the test cabinet, a support assembly is provided that forms a sliding insertion fit with the lower surface of the bearing edge parts and supports the bearing edge parts; at least the inner bottom wall of the water receiving tank body is arranged in an inclined manner of 1-3°, and a water guiding pipe is welded at the lowest part of the bottom wall of the water receiving tank body; the inlet end of the filter cylinder is communicated with the water guiding pipe, the outlet end of the filter cylinder is communicated with the circulation water tank, the inlet end of the water pump is communicated with the circulation water tank, and the water pump is communicated with the vertical pipes in the first rainfall simulation pipe group and the second rainfall simulation pipe group through a water supply main pipe.

[0034] In one of the embodiments, the air supply device includes a blower, an electric heating box, an air supply pipe, a plurality of electric heaters, a temperature sensor, and an electric heating controller. The blower is driven by a variable frequency motor.

[0035] One end of the electric heating box is provided with an air inlet and the other end is provided with an air outlet. The air inlet is communicated with the outlet of the blower, the air outlet is communicated with one end of the air supply pipe, and a plurality of electric heaters are arranged in the electric heating box between the air inlet and the air outlet.

[0036] The electric heating controller is electrically connected to the electric heater. The temperature sensor is arranged at the moving stage assembly for detecting the temperature at the moving stage assembly, and the temperature sensor is electrically connected to the electric heating controller;

[0037] A flat through hole penetrating the inner and outer surfaces is formed in the center of the detection movable plate, and a flat air duct is installed in the flat through hole. The flat air duct is arranged towards the direction of the moving stage assembly, and the air supply duct and the flat air duct are connected through a flexible duct.

[0038] Adopting the above technical solution, the present invention has the following technical effects:

[0039] 1. Through the setting of the light channel simulation component, a test channel with gradually increasing or decreasing external illuminance can be simulated to meet the far and near illuminance tests of vehicle lamps under different external lighting conditions; and the external light intensity in the test channel can be obtained through the photosensitive component to meet the test environment during the automatic vehicle lamp test process.

[0040] 2. Through the rain simulation component, rain conditions can be simulated between the vehicle lamp to be tested and the far and near light intensity detection component to obtain the irradiation intensity of the vehicle lamp under rainy conditions.

[0041] 3. The air volume simulation component is arranged on one side of the far and near light intensity detection component and is used for blowing air towards the surface of the vehicle lamp, which can drive the rain to fall towards the surface of the vehicle lamp. Therefore, through the air volume simulation component, when there is rain, the simulated wind force can blow the rain towards the surface of the vehicle lamp, so that part of the rain covers the surface of the vehicle lamp to further obtain the irradiation intensity of the vehicle lamp under more complex environmental conditions.

[0042] In summary, through the cooperation between each component, in a test device, different vehicle lamps can be tested to better meet the test work of vehicle lamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic side structure view of the present invention;

[0044] Figure 2 It is a schematic top structure view of the present invention;

[0045] Figure 3 It is a schematic top structure view of the light channel simulation component in the present invention;

[0046] Figure 4 It is a schematic side structure view of the light channel simulation component in the present invention;

[0047] Figure 5 It is a schematic view of the vehicle lamp to be tested outside the light channel simulation component in the present invention;

[0048] Figure 6 Schematic diagram of the headlight to be tested in the present invention extending into the light channel simulation component;

[0049] Figure 7 Top view structural schematic diagram of the moving stage component in the present invention;

[0050] Figure 8 Result schematic diagram between the high and low beam intensity detection component and the light channel simulation component in the present invention;

[0051] Figure 9 Structural schematic diagram of the high and low beam intensity detection component in the present invention;

[0052] Figure 10 Cross-sectional structural schematic diagram of the first semi-open component in the present invention;

[0053] Figure 11 Schematic diagram of the detachable connection card in the present invention;

[0054] Figure 12 Schematic diagram of the rain simulation component in the present invention;

[0055] In the drawings, 10, test cabinet; 11, test chamber; 12, simulation equipment chamber; 13, intermediate cross beam; 14, headlight; 15, moving stage component; 16, high and low beam intensity detection component; 17, light channel simulation component; 18, photosensitive component; 19, rain simulation component; 20, air volume simulation component;

[0056] 21, water circulation equipment; 22, air supply equipment; 23, support plate; 24, fixed platform; 25, sliding platform; 26, slide rail; 27, slider; 28, triangular support frame; 29, drive motor; 30, drive screw;

[0057] 31, assembly template; 32, L-shaped mounting bracket; 33, connecting lock rod; 34, connecting ear; 35, pre-tightening spring; 36, locking nut; 37, connecting seat; 38, mounting post; 39, first connecting plate; 40, second connecting plate;

[0058] 41, positioning ring; 42, positioning pin; 43, locking bolt; 44, detection movable plate; 45, detection fixed plate; 46, guide post; 47, telescopic driver; 48, high beam intensity detection sensor; 49, low beam intensity detection sensor; 50, installation adjustment hole;

[0059] 51. First semi-open component, 52. Second semi-open component, 53. First clutch driver, 54. Second clutch driver, 55. First C-shaped moving block, 56. Second C-shaped moving block, 57. C-shaped light-shielding component, 58. First C-shaped flared connecting sleeve, 59. Second C-shaped flared connecting sleeve, 60. Removable connecting clip;

[0060] 61. First C-shaped connecting part, 62. Flared connecting part, 63. Second C-shaped connecting part, 64. Assembly card slot, 65. Clamping part, 66. First C-shaped card strip, 67. Second C-shaped card strip, 68. First rain simulation pipe group, 69. Second rain simulation pipe group, 70. Solenoid valve;

[0061] 71. Water distribution pipe, 72. Vertical pipe, 73. Sprinkler, 74. Avoidance groove, 75. Light-shielding sheet, 76. Water receiving tank body, 77. Filter cartridge, 78. Circulation water tank, 79. Water pump, 80. Bearing edge;

[0062] 81. Left support plate, 82. Right support plate, 83. Water inlet pipe, 84. Main water supply pipe, 85. Air blower, 86. Electric heating box, 87. Air supply pipe, 88. Electric heater, 89. Flat through hole, 90. Flexible pipe. Detailed implementation manners

[0063] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0064] Please refer to Figures 1-12 , a headlight simulation test device, including a test cabinet 10, which is assembled by a plurality of vertically and horizontally arranged cabinet frames. Inside the test cabinet 10, it is divided into a test chamber 11 and a simulation equipment chamber 12 in the up-and-down manner. Inside the test cabinet 10, the interior is vertically separated by an intermediate cross beam 13 in the middle. The test chamber 11 is used to assemble test equipment, and the simulation equipment chamber 12 is used to assemble simulation energy supply equipment for test conditions for separate arrangement.

[0065] At one end inside the test chamber 11, there is a moving stage assembly 15 for clamping the vehicle headlight 14. The moving stage assembly 15 can clamp the vehicle headlight 14 to be tested and drive the vehicle headlight 14 to move within a certain range in the horizontal direction, such as moving from the clamping position of the vehicle headlight 14 to the position to be tested and then back to the clamping position of the vehicle headlight 14, so as to facilitate the automatic switching of the vehicle headlight 14 to be tested between the clamping position and the testing position.

[0066] At the other end inside the test chamber 11, there is a high and low beam intensity detection assembly 16. The high and low beam intensity detection assembly 16 is directly opposite to the irradiation direction of the vehicle headlight 14 and within the irradiation range. It can receive the high and low beam irradiations of the vehicle headlight 14, obtain the illuminance of the high and low beams of the vehicle headlight 14, detect the high and low beams of the vehicle headlight 14, record the obtained irradiation intensity of the high and low beams of the vehicle headlight 14, and compare it with the set irradiation intensity value of the high and low beams of the vehicle headlight 14. When the obtained irradiation intensity value is within the set irradiation intensity value range, it indicates that the irradiation intensity of the vehicle headlight 14 meets the requirements. When it is not within the set irradiation intensity value range, it indicates that the irradiation intensity of the vehicle headlight 14 does not meet the requirements, and the light source of the vehicle headlight 14 needs to be further adjusted.

[0067] In the middle inside the test chamber 11, there is a light channel simulation assembly 17 whose illuminance gradually increases when separated or gradually decreases when combined, and a photosensitive assembly 18 located in the light channel simulation assembly 17 for detecting the illuminance in the test channel. Here, the illuminance is mainly the external light intensity, that is, when detecting the high and low beam intensities of the vehicle headlight, an external light environment is simulated. Through the light channel simulation assembly 17, test conditions of the vehicle headlight under various different external light environments are simulated, and the irradiation intensity of the external light can be obtained by using the photosensitive assembly 18.

[0068] A rainfall simulation assembly 19 for simulating the rainfall state is arranged inside the test chamber 11. The rainfall simulation assembly 19 is arranged between the vehicle headlight to be tested and the high and low beam intensity detection assembly 16. Through the rainfall simulation assembly 19, the rain condition can be simulated between the vehicle headlight to be tested and the high and low beam intensity detection assembly 16 to obtain the irradiation intensity of the vehicle headlight under rainy conditions.

[0069] A wind volume simulation assembly 20 for simulating air supply towards the vehicle headlight direction is arranged inside the test chamber 11. The wind volume simulation assembly 20 is arranged on one side of the high and low beam intensity detection assembly 16 and is used to supply air towards the surface of the vehicle headlight, which can drive the rain to fall towards the surface of the vehicle headlight. Thus, through the wind volume simulation assembly 20, when there is a rain condition, the rain can be blown towards the surface of the vehicle headlight by the simulated wind force, so that part of the rain covers the surface of the vehicle headlight to further obtain the irradiation intensity of the vehicle headlight under a more complex environment.

[0070] Inside the simulation device chamber 12, there are arranged a water supply circulation device 21 for supplying water to the rainfall simulation component 19 and a air supply device 22 for supplying variable air volume to the air volume simulation component 20; the water supply circulation device 21 provides circulating water for the rainfall simulation component 19 to conduct rain simulation, and the air supply device 22 distributes air for the air volume simulation component 20.

[0071] Through the cooperation among the above-mentioned various components, in a test device, for the tests of different vehicle lights, at least the following several test modes can be achieved to better meet the test work of vehicle lights:

[0072] Test mode one: When conducting the irradiation test on the high and low beams of a manual vehicle light (a vehicle light whose high and low beams need to be manually turned on and switched), through the combination of the light channel simulation component 17, a test channel with both ends open is directly formed. The moving stage component 15 drives the vehicle light to extend into one end of the test channel, and the high and low beam intensity detection component 16 extends into the other end of the test channel. By switching the irradiation of the high and low beams of the vehicle light, the high and low beam intensity detection component 16 obtains the irradiation intensity of the high and low beams of the vehicle light; when the moving stage component 15 drives the vehicle light to extend into the test channel, at least the front light-transmitting cover of the vehicle light is transferred into the test channel so that the light generated by the vehicle light is mainly irradiated in the test channel; first, a relatively closed test channel is formed to ensure the formation of the test channel, then the vehicle light and the high and low intensity detection component are pushed into both ends of the test channel, and then the photosensitive component 18 receives the light intensity in the test channel. When the set light intensity range is reached to ensure the stability of the formation of the test channel, the irradiation test on the high and low beam intensity of the vehicle light can be started.

[0073] Test mode two: When conducting the irradiation test on the high and low beams of an automatic vehicle light (an automatic vehicle light with an automatic light-sensing system, which can automatically turn on the low beam of the vehicle light through the light-sensing system, and the switching of the high and low beams needs to be manually switched), the moving stage component 15 drives the automatic vehicle light to enter the test position, and the high and low beam intensity detection component 16 is in the position to be tested. Through the combination of the light channel simulation component 17, a test channel is gradually formed. During the formation of the test channel, when the light intensity detected by the photosensitive component 18 reaches the set value, the automatic vehicle light automatically turns on and through the switching of the irradiation of the high and low beams, the high and low beam intensity detection component 16 obtains the irradiation intensity of the high and low beams of the automatic vehicle light; during this test process, first, the automatic turn-on light condition of the vehicle light is detected by the photosensitive component 18, second, the irradiation intensity of the low beam when the vehicle light automatically turns on can be obtained, and third, after the test channel is completely formed, the irradiation intensity of the high and low beams of the vehicle light is tested.

[0074] Test mode three: When detecting the light illumination of the vehicle lamp in rainy conditions in test mode one or test mode two, different rainfall amounts are simulated in the test channel by the rainfall simulation component 19, which is placed between the vehicle lamp and the high and low beam intensity detection component 16. The high and low beam illumination intensities of the vehicle lamp are obtained through the high and low beam intensity detection component 16. Different amounts of water can be simulated to fall by the rainfall simulation component 19, forming between the vehicle lamp and the high and low beam intensity detection component 16, and the illumination intensity of the vehicle lamp after passing through the falling water is obtained.

[0075] Test mode four: In the case of test mode three, the air supply device 22 is used to blow air towards the surface of the vehicle lamp, causing water to hit the surface of the vehicle lamp. The high and low beam illumination intensities of the vehicle lamp are obtained through the high and low beam intensity detection component 16. This mode better simulates the illumination situation of the vehicle lamp after the formation of rainfall, that is, simulates the test of the illumination intensity of the vehicle lamp when there is water attached to the surface of the vehicle lamp and there is falling water in the test channel.

[0076] Please refer to Figure 2 、 5 As shown in Figures 6 and 7, in order to achieve the horizontal transfer of the vehicle lamp, in a specific implementation, a support plate 23 arranged horizontally is fixedly provided on the middle cross beam 13. Both ends of the support plate are bolted and fixedly connected to the middle cross beam 13. An installation surface for the moving stage assembly 15 is formed above the support plate 23. The moving stage assembly 15 includes a fixed stage 24 fixedly provided above the support plate 23, a sliding stage 25 slidably arranged on the fixed stage 24, and a sliding drive assembly assembled on the fixed stage 24 for driving the sliding stage 25 to slide back and forth on the fixed stage 24. The sliding drive assembly includes two slide rails 26 fixedly provided on the upper surface of the fixed stage 24, a slider 27 slidably engaged with the slide rails 26. The lower part of the sliding stage 25 is fixedly mounted on the slider 27. A triangular support frame 28 is fixed outside the fixed stage 24. A driving motor 29 is installed on the triangular support frame 28. The output end of the driving motor 29 is connected to a driving screw 30. Both ends of the driving screw 30 are rotationally assembled on the upper surface of the fixed stage 24 through bushings. A driving nut sleeve assembled on the lower surface of the sliding stage 25 is arranged between the driving screw 30 and the lower part of the sliding stage 25. The driving screw 30 and the driving nut sleeve form a screw drive. Thus, when the driving motor 29 works, through the transmission of the driving screw 30, the driving nut sleeve and the sliding stage 25 are driven to move along with the slider 27 on the slide rails 26, so as to realize the horizontal movement of the sliding stage 25 in the front-rear direction in the test cabinet 10.

[0077] On the sliding table 25, an assembly template 31 is fixedly arranged. The assembly template 31 is fixedly assembled on the sliding table 25 through an L-shaped mounting bracket 32. A plurality of connecting lock rods 33 with different lengths are passed through the assembly template 31. The inner ends of the connecting lock rods 33 pass through the assembly holes of the connecting ears 34 on the outer periphery of the headlight to be tested. A pre-tightening spring 35 is sleeved on each connecting lock rod 33. The pre-tightening spring 35 is pressed between the connecting ear 34 on the outer periphery of the headlight and the inner side surface of the assembly template 31. The outer ends of the connecting lock rods 33 are located outside the assembly template 31 and are equipped with locking nuts 36. That is, when it is necessary to install the headlight to be tested on the assembly template 31, the four connecting lock rods 33 are inserted into the assembly holes of the connecting ears 34 from the left side of the headlight and extend to the right side of the assembly template 31, and the position is locked through the locking nuts 36. The setting of the pre-tightening spring 35 is to generate pressure on the connecting ear 34 and improve the tightening force on the headlight.

[0078] Among them, the L-shaped mounting bracket 32 includes a connecting seat 37 and a mounting post 38. The lower end of the connecting seat 37 has a first connecting plate 39. Through the bolt connection between the first connecting plate 39 and the upper surface of the sliding table 25, the connecting seat 37 is arranged vertically on the sliding table 25. The left end of the mounting post 38 has a second connecting plate 40. Through the bolt connection between the second connecting plate 40 and the outer side surface of the assembly template 31, the mounting post 38 is horizontally installed outside the assembly template 31. At least the right end of the mounting post 38 adopts a cylindrical structure. The right end of the mounting post 38 passes through the upper end of the connecting seat 37, that is, a circular through hole penetrating the left and right surfaces is opened at the upper end of the connecting seat 37. A positioning ring 41 is installed on the mounting post 38 on the right side of the connecting seat 37 in a keyway manner, that is, the positioning ring 41 can move along the axial direction of the mounting post 38 and can also rotate along with the rotation of the mounting post 38. A positioning pin 42 is inserted into the positioning ring 41. A plurality of positioning holes for inserting the positioning pin 42 are opened on the right side surface of the connecting seat 37. The plurality of positioning holes are arranged in a circular shape around the outer circumference of the circular through hole with the axis line of the mounting post 38 as the center. Two locking bolts 43 are assembled on the top of the connecting seat 37 and are inserted from top to bottom and can extend into the circular through hole. That is, when the mounting post 38 is inserted into the circular through hole, rotated in place and with appropriate length, the locking bolts 43 are tightened to press against the outer peripheral wall of the mounting post 38 in the circular through hole for locking. And by inserting the positioning pin 42 into the corresponding positioning hole, the locking ability of the connecting seat 37 to the mounting post 38 is further enhanced, and the possibility of the mounting post 38 rotating during use is reduced.

[0079] When testing headlights of different styles (mainly for different positions of the connecting ear 34 on the headlights), the assembly template 31 can be installed and removed at the second connecting plate 40, that is, different assembly templates 31 can be replaced to adapt to the testing of headlights of the same model in one batch; after the headlights are assembled, the horizontal angle of the overall headlights in the front can be adjusted by rotating the mounting post 38 to further simulate the horizontal installation degree of the headlights on the vehicle body, and the depth of the entire headlights extending into the test channel can be adjusted by adjusting the length of the mounting post 38 extending out of the right side of the connecting seat 37 to adapt to different headlights, that is, to keep the depth of different styles of headlights extending into the test channel consistent as much as possible and maintain the basic coincidence of the headlight test positions.

[0080] Please refer to Figure 8 、 9 As shown in Figure 8 and 9 , for the high and low beam intensity detection component 16 at the test end, it includes a detection movable plate 44 and a detection fixed plate 45. The detection fixed plate 45 is fixedly assembled in the test cabinet 10. The detection fixed plate 45 can span across the test cabinet 10 or a fixed mounting beam can be installed on the left side of the test chamber 11 in the test cabinet 10 for the fixed installation of the detection fixed plate 45; four guide posts 46 arranged horizontally are fixedly provided on the inner side of the detection fixed plate 45, and the four guide posts 46 are arranged at intervals towards the outside. The detection movable plate 44 is sleeved on the four guide posts 46, and the detection movable plate 44 can move back and forth on the guide posts 46. A telescopic driver 47 is assembled between the inner side of the detection fixed plate 45 and the inner side of the detection movable plate 44 to drive the detection movable plate 44 to slide back and forth on the guide posts 46. The telescopic driver 47 can be an electric cylinder; a high beam intensity detection sensor 48 and a low beam intensity detection sensor 49 for receiving the headlight illumination are installed on the outer side of the detection movable plate 44. Among them, multiple groups of installation adjustment holes 50 are respectively opened in the upper and lower parts of the outer side surface of the detection movable plate 44. The multiple groups of installation adjustment holes 50 in the upper part are for the installation of the high beam intensity detection sensor 48, and the multiple groups of installation adjustment holes 50 in the lower part are for the installation of the low beam intensity detection sensor 49. The light intensity detection sensors are respectively installed in the corresponding installation adjustment holes through four screws, and different groups of installation adjustment holes 50 can be selected according to needs to change the installation position of the light intensity detection sensors, that is, to change the up, down, left, and right positions of the light intensity detection sensors to meet the requirements of the high and low beam light intensity detection positions of different styles of headlights. Among them, by assembling multiple high beam intensity detection sensors / low beam intensity detection sensors on the detection movable plate 44 at the same time, the irradiation contours of the high and low beams of the headlights can be simulated, and the test of the irradiation contours of the high and low beams of the headlights can be obtained.

[0081] Please refer to Figure 3 、 4, as shown in Figures 8 and 10, wherein the light channel simulation component 17 includes a first semi-open component 51, a second semi-open component 52, a first clutch driver 53, and a second clutch driver 54. The opening of the first semi-open component 51 is arranged towards the opening direction of the second semi-open component 52; the first semi-open component 51 and the second semi-open component 52 have the same structure, and the arrangement directions of the openings are opposite; both ends of the first semi-open component 51 and both ends of the second semi-open component 52 are respectively arranged on the first clutch driver 53 and the second clutch driver 54, and the first semi-open component 51 and the second semi-open component 52 are driven by the first clutch driver 53 and the second clutch driver 54 to form a separating movement; for example, the left ends of the first semi-open component 51 and the second semi-open component 52 are driven by the first clutch driver 53 to form a separating movement, and the right ends of the first semi-open component 51 and the second semi-open component 52 are driven by the second clutch driver 54 to form a separating movement. Thus, the first semi-open component 51 and the second semi-open component 52 can form a separating movement. When they are combined, the first semi-open component 51 and the second semi-open component 52 form a gradually closing test channel. When they are separated, the first semi-open component 51 and the second semi-open component 52 form a gradually opening test channel.

[0082] In this application, the first clutch driver 53 and the second clutch driver 54 can be realized by a motor cooperating with a lead screw. Of course, four electric cylinders can also be used to drive four C-shaped moving blocks respectively.

[0083] The first semi-open component 51 includes a first C-shaped moving block 55, a second C-shaped moving block 56, and a C-shaped light-shielding component 57. A first C-shaped flared connecting sleeve 58 is fixedly arranged inside the first C-shaped moving block 55, and a second C-shaped flared connecting sleeve 59 is fixedly arranged inside the second C-shaped moving block 56 respectively. Both ends of the C-shaped light-shielding component 57 are connected to the flared ends of the first C-shaped flared connecting sleeve 58 and the second C-shaped flared connecting sleeve 59 through detachable connecting parts 60.

[0084] Among them, the second semi-open component 52 has the same structure as the first semi-open component 51. The test channel is formed between the C-shaped light-shielding component 57 of the first semi-open component 51 and the C-shaped light-shielding component 57 of the second semi-open component 52. The two C-shaped light-shielding components 57 can be made of a waterproof opaque fabric or a thin metal sheet; when a waterproof opaque fabric is used, steel wires or metal sheets arranged along the length direction of the C-shaped light-shielding component 57 can be sewn in the opening edge part of the C-shaped light-shielding component 57 to enhance the strength of the opening edge of the C-shaped light-shielding component 57 and make the structure of the C-shaped light-shielding component 57 more stable. Of course, corresponding steel wires or metal sheets can also be sewn in the inner corner part of the C-shaped light-shielding component 57 to make the C-shaped light-shielding component 57 have a more stable structure.

[0085] The C-shaped light-shielding member 57 has a C-shaped structure formed by enclosing an upper top, a lower bottom, and an outer side; when two C-shaped light-shielding members 57 are combined, the edge portions of the upper tops of the two C-shaped light-shielding members 57 are attached to each other, and the edge portions of the lower bottoms are attached to each other, thereby forming a test channel between the two C-shaped light-shielding members 57. Both ends of the test channel are open, one end is for the far and near light intensity detection component 16, and the other end is for placing the vehicle lamp to be tested. The light generated by the vehicle lamp irradiates into the test channel.

[0086] In addition, please refer to Figure 10 As shown, the first C-shaped flared connecting sleeve 58 includes a first C-shaped connecting portion 61, a flared connecting portion 62, and a second C-shaped connecting portion 63. The second C-shaped flared connecting sleeve 59 has the same structure as the first C-shaped flared connecting sleeve 58; the first C-shaped connecting portion 61 is fixedly arranged on the inner wall of the first C-shaped moving block 55, the small end of the flared connecting portion 62 is fixedly connected to one side of the first C-shaped connecting portion 61, and the large end of the flared connecting portion 62 is fixedly connected to the second C-shaped connecting portion 63; wherein, the first C-shaped connecting portion 61, the flared connecting portion 62, and the second C-shaped connecting portion 63 can be integrally formed or can be fixedly arranged by common fixing methods. Through the arrangement of the flared connecting portion 62, the internal space of the test channel can be increased, providing better convenience for testing the vehicle lamp.

[0087] An assembly card slot 64 is opened on the inner wall of the second C-shaped connecting portion 63. The assembly card slot 64 extends to the opening end face of the second C-shaped connecting portion 63. The assembly card slot 64 is at least arranged on the top wall and the bottom wall inside the second C-shaped connecting portion 63. The assembly card slots 64 on the top wall and the bottom wall form an overlap after being projected from top to bottom, ensuring the stability of the detachable connecting member after assembly. Through the assembly card slots 64 on the top wall and the bottom wall, a clamping position is formed for the insertion of the detachable connecting member and an effective positioning is formed, that is, the upper end of the detachable connecting member is inserted into the assembly card slot 64 on the top wall, and the lower end is inserted into the assembly card slot 64 on the bottom wall.

[0088] Among them, at least the assembly card slot 64 on the bottom wall inside the second C-shaped connecting portion 63 is arranged in a downward inclination, that is, the assembly card slot 64 on the bottom wall is arranged in a downward inclination from the closed end of the second C-shaped connecting portion 63 towards the opening end, so as to facilitate the insertion of the detachable connecting member; in addition, the inner shoulder of the bottom wall assembly card slot 64 is also arranged in a corresponding inclination. In this way, when the C-shaped light-shielding member 57 is installed in the second C-shaped connecting portion 63 along with the detachable connecting card 60, the bottom inner surface of the C-shaped light-shielding member 57 is inclined for installation, so as to facilitate the drainage of subsequent collected water.

[0089] Some smaller water drainage holes can be opened at the bottom of the C-shaped light-shielding member 57 to facilitate the drainage of subsequent collected water, but these water drainage holes should be opened as small and as few as possible to minimize the influence on the light in the relatively closed test channel after the holes are opened.

[0090] The detachable connection clip 60 is in a C-shaped structure. The detachable connection clip 60 is inserted into the assembly slot 64 from the opening side of the second C-shaped connection part 63 inward to realize the assembly of the detachable connection clip 60 and the second C-shaped connection part 63; one end of the detachable connection clip 60 is bent and folded outside the second C-shaped connection part 63, that is, the open end of the detachable connection clip 60 is bent outward to form a clamping part 65; after the detachable connection clip 60 is installed in the assembly slot 64, the clamping part 65 is clamped on the outer wall of the second C-shaped connection part 63 to enhance the connection stability between the detachable connection clip 60 and the second C-shaped connection part 63. Some protrusions can also be added between the two to increase friction and further improve the bonding ability of the clamping part 65 and the outer wall of the second C-shaped connection part 63.

[0091] The detachable connection clip 60 is formed by fixedly connecting a first C-shaped strip 66 and a second C-shaped strip 67 with countersunk head screws. That is, after the two C-shaped strips use countersunk head screws, the countersunk head screws do not protrude beyond the surface of the strips, so that the subsequent detachable connection clip 60 can be smoothly inserted into the assembly slot 64. The C-shaped strips are made of stainless steel and have a certain rigidity to ensure stable insertion into the assembly slot 64. Among them, the depth of the assembly slot 64 is greater than the cross-sectional height of the C-shaped strip to avoid the possibility of the C-shaped strip disengaging from the assembly slot 64.

[0092] A clamping space for clamping the end of the C-shaped light-shielding component 57 is formed between the first C-shaped strip 66 and the second C-shaped strip 67. After the first C-shaped strip 66 and the second C-shaped strip 67 are fixedly connected with countersunk head screws, the clamping ability of the end of the C-shaped light-shielding component 57 in the clamping space can be ensured.

[0093] Please refer to Figure 1 、 2 As shown in FIGS. 11 and 12, in the present application, the rain simulation assembly 19 includes a first rain simulation pipe group 68 and a second rain simulation pipe group 69 with different water spraying amounts. The first rain simulation pipe group 68 and the second rain simulation pipe group 69 are arranged side by side in the test chamber 11. The first rain simulation pipe group 68 is close to the moving stage assembly 15, and the second rain simulation pipe group 69 is relatively far from the moving stage assembly 15. The rainfall simulated by the first rain simulation pipe group 68 is less than the rainfall simulated by the second rain simulation pipe group 69. For example, the first rain simulation pipe group 68 can generate small precipitation such as light rain and spray, and the second rain simulation pipe group 69 can simulate precipitation greater than that generated by the first rain simulation pipe group; the first rain simulation pipe group 68 and the second rain simulation pipe group 69 can be used separately during the headlight test to simulate the test of the headlight illumination intensity under rainy conditions.

[0094] Among them, the first rainfall simulation pipe group 68 and the second rainfall simulation pipe group 69 respectively include electromagnetic valves 70, water distribution pipelines 71, vertical pipelines 72, and multiple sprinklers 73; the water distribution pipelines 71 are arranged horizontally, and multiple sprinklers 73 are connected in parallel below the water distribution pipelines 71. The vertical pipelines 72 are arranged vertically above the water distribution pipelines 71 and are connected to the middle position of the water distribution pipelines 71. The electromagnetic valves 70 are installed on the vertical pipelines 72; the water flow flowing into the vertical pipelines 72 can be controlled through the electromagnetic valves 70, so as to form rainfall through the corresponding sprinklers 73 spraying in the test channel. During the test, the test time for the vehicle lamp is relatively short, so the amount of water sprayed down does not need to be too much. During or after the test, the accumulated water in the test channel can be drained out of the test channel. The horizontal length of the water distribution pipeline 71 is not greater than the internal width of the test channel formed when two C-shaped light-shielding members are combined, ensuring that the arrangement of the water distribution pipeline 71 does not affect the formation of the test channel.

[0095] Among them, when the C-shaped light-shielding components 57 in the first semi-open component 51 and the C-shaped light-shielding components 57 in the second semi-open component 52 are in a combined state, the water distribution pipeline 71 is located in the upper part of the test channel formed by the two C-shaped light-shielding components 57. The opening edges of the upper parts of the two C-shaped light-shielding components 57 have semi-circular avoidance grooves 74 for avoiding the vertical pipeline 72. The two semi-circular avoidance grooves 74 can form a circular through hole with a diameter slightly larger than the outer diameter of the vertical pipeline 72, so as to reduce the movement obstruction of the vertical pipeline 72 to the C-shaped light-shielding component 57 during the formation of the test channel; a circular light-shielding sheet 75 is fixed above the C-shaped light-shielding component 57 on the vertical pipeline 72. The light-shielding area of the light-shielding sheet 75 is larger than the circular through hole formed by the avoidance groove 74, and after being projected from top to bottom, the light-shielding sheet 75 covers the circular through hole, so as to reduce the projection of external light from the avoidance groove 74 towards the inside of the synthesized test channel and affect the test effect of the vehicle lamp.

[0096] Please refer to Figure 1 、 2 As shown, the water supply and circulation device 21 in the present application includes a water receiving tank body 76, a filter cylinder 77, a circulation water tank 78, and a water pump 79. The upper end of the water receiving tank body 76 is open. The width of the water receiving tank body 76 is at least greater than the width when the first semi-open component 51 and the second semi-open component 52 are separated to the maximum distance, and its length is at least greater than the length of the test channel formed between the first semi-open component 51 and the second semi-open component 52, so as to ensure the effective collection of the water falling from the upper rainfall simulation component 19.

[0097] The water receiving tank body 76 is located below the rainfall simulation component 19 and is used to receive the water sprayed by the rainfall simulation component 19. Two opposite edge parts of the water receiving tank body 76 form a bearing edge part 80 that bends 90° outward. In the test cabinet 10, there is a support component that forms a sliding insertion fit with the lower surface of the bearing edge part 80 and supports the bearing edge part 80; the support component includes a left support plate 81 and a right support plate 82. The left support plate 81 is fixed on the left side of the middle cross beam 13 in the test cabinet 10, and the right support plate 82 is fixed on the right side of the middle cross beam 13 in the test cabinet 10. The bearing edge part 80 on the left side of the water receiving tank body 76 is placed on the left support plate 81, and the bearing edge part 80 on the right side of the water receiving tank body 76 is placed on the right support plate 82. The water receiving tank body 76 is loaded into the test cabinet 10 from one side of the test cabinet 10 and is assembled below the middle cross beam 13 in the test cabinet 10 through the support of the left and right support plates 82, which is convenient for pulling out and putting in the water receiving tank body 76, and the installation is convenient. After the water receiving tank body 76 is pushed in place, the water receiving tank body 76 can be fixed tightly with the left and right support plates 82 by screws to prevent the water receiving tank body 76 from moving during use.

[0098] At least the inner bottom wall of the water receiving tank body 76 is arranged in an inclined manner of 1-3° so that the water in the water receiving tank body 76 converges towards one place. A water guiding pipe 83 is welded at the lowest part of the bottom wall of the water receiving tank body 76, and the water in the water receiving tank body 76 is collected and discharged downward through the water guiding pipe 83; the inlet end of the filter cylinder 77 is communicated with the water guiding pipe 83, the outlet end of the filter cylinder 77 is communicated with the circulating water tank 78, and the inlet end of the water pump 79 is communicated with the circulating water tank 78. The water pump 79 is communicated with the vertical pipes 72 in the first rainfall simulation pipe group 68 and the second rainfall simulation pipe group 69 through a water supply main pipe 84. Among them, the water supply main pipe 84 and the vertical pipes 72 can be suspended by hanging hooks fixed to the top inside the test cabinet 10; the water in the water receiving tank body 76 enters the filter cylinder 77 through the water guiding pipe 83, and the large particulate matters that may contain impurities are filtered out through the filter cylinder 77, and then sent into the circulating water tank 78, and then pumped into the rainfall simulation component 19 by the water pump 79 for spraying use to achieve recycling.

[0099] Please refer to Figure 1 、 9As shown in the figure, the air supply device 22 in the present application includes a blower 85, an electric heating box 86, an air supply duct 87, a plurality of electric heaters 88, a temperature sensor, and an electric heating controller. The blower 85 is driven by a variable-frequency motor. One end of the electric heating box 86 is provided with an air inlet, and the other end is provided with an air outlet. The air inlet is communicated with the outlet of the blower 85, and the air outlet is communicated with one end of the air supply duct 87. A plurality of electric heaters 88 are arranged in the electric heating box 86 between the air inlet and the air outlet. The electric heating controller is electrically connected to the electric heaters 88. The temperature sensor is arranged at the moving stage assembly 15 for detecting the temperature at the moving stage assembly 15. The temperature sensor is electrically connected to the electric heating controller. A flat through hole 89 penetrating the inner and outer surfaces is formed in the center of the detection movable plate 44. The air volume simulation assembly 20 is a flat air duct installed in the flat through hole 89. The outlet end of the flat air duct is a conical cavity formed by enclosing four adjacent inclined surfaces, which extends along the inner wall of the conical cavity towards the direction of the vehicle lamp. Up to the test position of the vehicle lamp, the formed extended virtual cross-sectional area is larger than the light-transmitting surface of the vehicle lamp, so as to ensure the air supply area of the flat air duct. In actual operation, the use of the electric heater can also be stopped, and the normal-temperature air outside can be directly extracted by the blower and sent into the test channel.

[0100] The flat air duct is arranged towards the moving stage assembly 15, and the air supply duct 87 is communicated with the flat air duct through a flexible duct 90. By providing a certain amount of wind force by the blower 85, the flat air duct is arranged towards the direction of the vehicle lamp, that is, the wind force can be blown towards the vehicle lamp. During the rain test of the vehicle lamp, the rainwater can be blown onto the surface of the vehicle lamp, better simulating the test environment. The setting of the electric heating box 86 can simulate hot air at a certain temperature, so that the surface of the vehicle lamp is in a certain temperature environment, more truly simulating the test environment at different temperatures.

[0101] It should be noted that the size of the detection movable plate 44 is slightly smaller than the cross-sectional size of the test channel, so that the detection movable plate 44 can be telescoped at the end of the test channel. Similarly, the size of the assembly template 31 is also smaller than the cross-sectional size of the test channel, facilitating the assembly template 31 to be telescoped at the end of the test channel. When the vehicle lamp is pushed to the test position, a part of the front end of the assembly template 31 is in the test channel to ensure that the entire vehicle lamp can be in the test channel. The vehicle lamp is pushed into the test channel through the assembly template 31, so that the assembly template 31 forms a certain blockage to the external light at the end of the test channel, minimizing the influence of the external light irradiation on the light test of the vehicle lamp.

[0102] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting it, let alone limiting the patent scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; in addition, directly or indirectly applying the technical solutions of the present invention to other related technical fields shall equally be included within the scope of the patent protection of the present invention.

Claims

1. A headlight simulation test device, including a test cabinet, characterized in that, The up-and-down mode inside the test cabinet is divided into a test chamber and a simulation equipment chamber. At one end inside the test chamber, there is a moving carrier assembly for clamping the vehicle lamp. At the other end inside the test chamber, there is a high and low beam intensity detection assembly arranged. In the middle of the test chamber, there is a light channel simulation assembly where the illuminance gradually increases when separated or gradually decreases when combined. Located in the light channel simulation assembly, there is a photosensitive component for detecting the illuminance inside the test channel. A rain amount simulation assembly for simulating the rainfall state is arranged inside the test chamber. A wind volume simulation assembly for simulating air supply towards the vehicle lamp direction is arranged inside the test chamber. Inside the simulation equipment chamber, there is a water supply circulation equipment for supplying water to the rain amount simulation assembly and a air supply equipment for supplying variable air volume to the wind volume simulation assembly arranged.

2. The headlight simulation test device according to claim 1, characterized in that, Based on the above test device, the following test modes can be formed for the vehicle lamp to be tested: Test mode one: When conducting the high and low beam irradiation test for a manual vehicle lamp, by combining the light channel simulation assembly, a test channel with both ends open is directly formed. The moving carrier assembly drives the vehicle lamp to extend into one end of the test channel, and the high and low beam intensity detection assembly extends into the other end of the test channel. By switching the irradiation of the high and low beams of the vehicle lamp, the high and low beam irradiation intensity of the vehicle lamp is obtained by the high and low beam intensity detection assembly. Test mode two: When conducting the high and low beam irradiation test for an automatic vehicle lamp, the moving carrier assembly drives the automatic vehicle lamp into the test position, and the high and low beam intensity detection assembly is in the position to be tested. By combining the light channel simulation assembly, the test channel is gradually formed. During the formation of the test channel, when the light intensity detected by the photosensitive component reaches the set value, the automatic vehicle lamp automatically turns on and by switching the irradiation of the high and low beams, the high and low beam irradiation intensity of the automatic vehicle lamp is obtained by the high and low beam intensity detection assembly. Test mode three: In the case of test mode one or test mode two, when detecting the illumination of the vehicle lamp in rainy weather, different rainfall amounts are simulated inside the test channel through the rain amount simulation assembly, which is located between the vehicle lamp and the high and low beam intensity detection assembly. The high and low beam irradiation intensity of the vehicle lamp is obtained by the high and low beam intensity detection assembly. Test mode four: In the case of test mode three, by using the air supply equipment to blow air towards the surface of the vehicle lamp, so that water drops onto the surface of the vehicle lamp, the high and low beam irradiation intensity of the vehicle lamp is obtained by the high and low beam intensity detection assembly.

3. The headlight simulation test device according to claim 1, characterized in that, The moving carrier assembly includes a fixed platform fixedly arranged inside the test cabinet, a sliding platform slidably arranged on the fixed platform, and a sliding drive assembly assembled on the fixed platform for driving the sliding platform to slide back and forth on the fixed platform. On the sliding platform, there is an assembly template fixedly arranged. The assembly template is fixedly assembled on the sliding platform through an L-shaped mounting bracket. A plurality of connecting lock rods with different lengths are passed through the assembly template. The inner ends of the connecting lock rods pass through the assembly holes of the connecting ears on the outer periphery of the vehicle lamp to be tested. A pre-tightening spring is sleeved on each connecting lock rod, and the pre-tightening spring is compressed between the connecting ear on the outer periphery of the vehicle lamp and the inner side surface of the assembly template. The outer ends of the connecting lock rods are located outside the assembly template and are equipped with locking nuts.

4. The headlamp simulation test device according to claim 1, characterized in that, The high and low beam intensity detection component includes a detection movable plate and a detection fixed plate. The detection fixed plate is fixedly assembled in the test cabinet. Four guide columns arranged in the horizontal direction are fixedly provided on the inner side of the detection fixed plate. The detection movable plate is sleeved on the four guide columns. A telescopic driver is assembled between the inner side of the detection fixed plate and the inner side of the detection movable plate to drive the detection movable plate to slide back and forth on the guide columns. A high beam intensity detection sensor and a low beam intensity detection sensor for receiving the illumination of the vehicle lamp are installed on the outer side of the detection movable plate.

5. The headlight simulation test device according to claim 1, wherein, The light channel simulation component includes a first semi-open component, a second semi-open component, a first clutch driver, and a second clutch driver. The opening of the first semi-open component is arranged towards the opening direction of the second semi-open component. The first semi-open component and the second semi-open component have the same structure, and the arrangement directions of the openings are opposite. Both ends of the first semi-open component and both ends of the second semi-open component are respectively arranged on the first clutch driver and the second clutch driver. The first clutch driver and the second clutch driver drive the first semi-open component and the second semi-open component to form a separating movement. The first semi-open component includes a first C-shaped moving block, a second C-shaped moving block, and a C-shaped light-shielding component. A first C-shaped flared connecting sleeve is fixedly arranged in the first C-shaped moving block. Second C-shaped flared connecting sleeves are respectively fixedly arranged in the second C-shaped moving block. Both ends of the C-shaped light-shielding component are connected to the flared ends of the first C-shaped flared connecting sleeve and the second C-shaped flared connecting sleeve through detachable connecting cards.

6. The headlight simulation test device according to claim 5, characterized in that The first C-shaped flared connecting sleeve includes a first C-shaped connecting portion, a flared connecting portion, and a second C-shaped connecting portion. The second C-shaped flared connecting sleeve has the same structure as the first C-shaped flared connecting sleeve. The first C-shaped connecting portion is fixedly arranged on the inner wall of the first C-shaped moving block. The small end of the flared connecting portion is fixedly connected to one side of the first C-shaped connecting portion. The large end of the flared connecting portion is fixedly connected to the second C-shaped connecting portion. An assembly card slot is formed on the inner wall of the second C-shaped connecting portion. The assembly card slot extends to the opening end face of the second C-shaped connecting portion. The assembly card slot is at least arranged on the top wall and the bottom wall inside the second C-shaped connecting portion. At least the assembly card slot on the bottom wall inside the second C-shaped connecting portion is arranged in a downward inclined manner. The detachable connecting card is inserted into the assembly card slot, and one end of the detachable connecting card is bent and folded outside the second C-shaped connecting portion. The detachable connecting card is formed by fixedly connecting a first C-shaped card strip and a second C-shaped card strip through a countersunk head screw. A clamping space for clamping the end of the C-shaped light-shielding component is formed between the first C-shaped card strip and the second C-shaped card strip.

7. The headlight simulation test device according to claim 5, wherein The rain amount simulation component includes a first rain amount simulation pipe group and a second rain amount simulation pipe group with different water spraying amounts. The first rain amount simulation pipe group and the second rain amount simulation pipe group respectively include a solenoid valve, a water distribution pipe, a vertical pipe, and a plurality of sprayers. The water distribution pipe is arranged in the horizontal direction. A plurality of sprayers are connected in parallel below the water distribution pipe. The vertical pipe is arranged vertically above the water distribution pipe and is connected to the middle position of the water distribution pipe. The solenoid valve is installed on the vertical pipe. When the C-shaped light-shielding components in the first semi-open component and the C-shaped light-shielding component of the second semi-open component are in a combined state, the water distribution pipe is located in the upper part of the test channel formed by the two C-shaped light-shielding components. The opening edges at the upper parts of the two C-shaped light-shielding components have semi-circular avoidance grooves for avoiding the vertical pipes.

8. The headlight simulation test device according to claim 7, characterized in that, The water supply and circulation device includes a water receiving tank body, a filter cylinder, a circulation water tank, and a water pump. The water receiving tank body is located below the rain simulation component and is used to receive the water sprayed down by the rain simulation component. Two opposite edge parts of the water receiving tank body form bearing edge parts bent outward. A support component that forms a sliding insertion fit with the lower surface of the bearing edge part and supports the bearing edge part is arranged in the test cabinet; at least the inner bottom wall of the water receiving tank body is arranged with an inclination of 1-3°, and a water guiding pipe is welded at the lowest part of the bottom wall of the water receiving tank body; the inlet end of the filter cylinder is communicated with the water guiding pipe, the outlet end of the filter cylinder is communicated with the circulation water tank, the inlet end of the water pump is communicated with the circulation water tank, and the water pump is communicated with the vertical pipes in the first rain simulation pipe group and the second rain simulation pipe group through a water supply main pipe.

9. The headlamp simulation test device according to claim 4, characterized in that The air supply device includes a fan, an electric heating box, an air supply pipe, a plurality of electric heaters, a temperature sensor, and an electric heating controller. The fan is driven by a variable frequency motor. One end of the electric heating box is provided with an air inlet, and the other end is provided with an air outlet. The air inlet is communicated with the outlet of the fan, and the air outlet is communicated with one end of the air supply pipe. A plurality of electric heaters are arranged in the electric heating box between the air inlet and the air outlet. The electric heating controller is electrically connected to the electric heaters. The temperature sensor is arranged at the moving stage component and is used to detect the temperature at the moving stage component. The temperature sensor is electrically connected to the electric heating controller. A flat through hole penetrating the inner and outer surfaces is formed in the center of the detection movable plate. A flat air duct is installed in the flat through hole. The flat air duct is arranged towards the moving stage component. The air supply pipe and the flat air duct are communicated through a flexible pipe.

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