Illuminating system

Abstract

The utility model relates to the technical field of lighting simulation for automobile part detection, in particular to a lighting system, which comprises a lamp holder, a lifting mechanism, a translation mechanism and a turnover mechanism, the lifting mechanism drives the lamp holder to move up and down, the translation mechanism drives the lifting mechanism and the lamp holder to move horizontally through the moving platform, the turnover mechanism drives the lifting mechanism and the lamp holder to be arranged in a turnover mode, and the translation mechanism and the turnover mechanism are added on the basis of an existing illumination simulation system. The translation mechanism and the turnover mechanism cooperate with each other to simulate different illumination angles in natural illumination, so that the natural illumination simulated by the illumination simulation system is closer to a real environment, the test performance precision during automobile part illumination detection is improved, and the illumination maintenance resistance of parts is verified in advance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lighting simulation technology for automobile parts detection, in particular to a lighting system. BACKGROUND

[0002] The core purpose of introducing light simulation in automobile parts testing is to restore the real light environment that the parts may encounter in the whole life cycle and verify the performance stability, reliability and safety of the parts in the environment - because natural light is not "harmless", it contains ultraviolet, infrared and visible light, which will have multidimensional effects on the material, structure and function of the parts, and if not tested in advance, it may lead to early failure of the vehicle in actual use.

[0003] As disclosed in the Chinese patent with patent application number CN202210442982.4, a kind of automobile natural light simulation test method, device, computer equipment and computer readable storage medium, the method includes according to the mapping relationship between the first quantization data and the second quantization data of the first quantization data training data set and the second quantization data training data set of the second quantization data collected by natural light sensor under real natural light; According to the test demand adjustment natural light simulation equipment, so that the actual first quantization data collected by natural light sensor under simulated natural light and the actual second quantization data collected by vehicle sensor on target object satisfy the mapping relationship;Storage state of natural light simulation equipment;Carry out automobile natural light simulation test using the state of the stored natural light simulation equipment, realize from the angle of vehicle sensor reflecting the authenticity of simulated natural light, so that the simulated natural light is more close to real natural light.

[0004] Although the above technical solution provides a device for simulating natural light, the specific mechanical structure is not disclosed, and the light simulation introduced in the existing automobile parts testing can only simulate vertical natural light and cannot simulate inclined natural light, for example, the sunlight irradiation angle in the morning and afternoon is completely different.

[0005] Therefore, there is an urgent need for a lighting system that can change the irradiation angle and be applied to automobile natural light simulation. UTILITY MODEL CONTENT

[0006] To solve the above problems, the utility model provides a lighting system, which adds a translation mechanism and a turnover mechanism on the basis of the existing light simulation system, and uses the mutual cooperation of the translation mechanism and the turnover mechanism to simulate the different irradiation angles of natural light, so that the natural light simulated by the light simulation system is closer to the real environment, improves the test performance accuracy of automobile part light detection, and verifies the performance of the parts against light maintenance in advance.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A lighting system, comprising:

[0009] Lamp holder, lifting mechanism, translation mechanism and turnover mechanism;

[0010] The lamp holder is evenly distributed with several lamps, and the lamp holder is provided with a lifting mechanism, a translation mechanism and a turnover mechanism above it;

[0011] The lifting end of the lifting mechanism is connected with the lamp holder, and the lifting mechanism drives the lamp holder to move up and down;

[0012] The moving platform of the translation mechanism is connected with the lifting mechanism, and the translation mechanism drives the lifting mechanism and the lamp holder to move horizontally through the moving platform;

[0013] The turnover mechanism is installed between the lifting mechanism and the moving platform, and the turnover mechanism drives the lifting mechanism and the lamp holder to be turned over.

[0014] As an improvement, the lamp holder is in the form of a square box, and the lamp is in the form of a long strip, and the lamp is used to radiate light, simulating ultraviolet (UV), infrared (IR) and visible light in natural light.

[0015] As an improvement, the lamp holder is hung by a sling, and the sling is used to improve the stability of the lamp holder when it is hung.

[0016] As an improvement, the lifting mechanism comprises a mounting plate and a scissor assembly;

[0017] The mounting plate is parallel to the lamp holder, and the mounting plate is rotationally connected with the moving platform;

[0018] The scissor assembly is installed between the mounting plate and the lamp holder, and the scissor assembly comprises two groups of scissors arranged in a cross shape, the scissors are rotationally connected at the cross position, and the scissors adjust the distance between the mounting plate and the lamp holder by changing the included angle at the cross position.

[0019] As an improvement, the lifting mechanism further comprises a driving assembly and a sliding assembly;

[0020] The driving assembly is installed on the mounting plate, and the driving assembly drives the end of the scissor to move and change the included angle at the cross position of the scissor;

[0021] The sliding assembly is installed on the movable end of the scissor, the sliding assembly is a sliding block module, and the sliding assembly provides the freedom of movement of the end of the scissor.

[0022] As an improvement, the driving assembly is one of an electric screw rod module, a pneumatic push rod module, an electric push rod module or a hydraulic push rod module.

[0023] As an improvement, the translation mechanism further comprises a slider assembly and an electric screw rod assembly.

[0024] The slider assembly is provided in two groups in parallel, and the slider on the slider assembly is connected with the moving platform.

[0025] The electric screw rod assembly is provided in parallel with the slider assembly, and the electric screw rod assembly drives the moving platform to translate along the slide rail in the slider assembly.

[0026] As an improvement, the turnover mechanism comprises a turnover shaft, a driving shaft, a transmission assembly and a turnover driver.

[0027] The turnover shaft is fixedly installed on the mounting plate, and the end of the turnover shaft extending outward from the mounting plate is rotationally connected with the moving platform.

[0028] The driving shaft is rotationally installed on the moving platform, and the driving shaft is provided in parallel with the turnover shaft.

[0029] The transmission assembly is provided between the turnover shaft and the driving shaft, and the driving shaft drives the turnover shaft to rotate through the transmission assembly.

[0030] The turnover driver is installed on the moving platform, and the turnover driver drives the driving shaft to rotate.

[0031] In addition, the utility model further proposes a testing device of the lighting system based on any one of the above, further comprising:

[0032] A test chamber, the top plate of the test chamber is installed with the lighting system, and the bottom plate of the test chamber is installed with the oscillation test platform.

[0033] As an improvement, the testing device further comprises:

[0034] A gantry crane, the gantry crane is provided across the oscillation test platform, and the gantry crane is movably adjusted along the longitudinal direction of the test chamber.

[0035] The utility model has the advantages of:

[0036] (1) The utility model increases the translation mechanism and the turnover mechanism on the basis of the existing light simulation system, simulates the different light irradiation angles in natural light by the mutual cooperation of the translation mechanism and the turnover mechanism, makes the natural light simulated by the light simulation system closer to the real environment, improves the test performance precision when the automobile parts light detection, and verifies the performance strength of the parts against light maintenance in advance.

[0037] The lifting mechanism in the utility model is preferably a scissor lifting mechanism, the "cross link extension structure" of the scissor mechanism has the dual advantages of "large stroke adjustment + low folding volume", perfectly covers the light simulation test and light angle requirement of various automobile parts types, and flexibly adjusts the height of the light source.

[0038] The lifting mechanism in the utility model is preferably a scissor lifting mechanism, the "cross link extension structure" of the scissor mechanism has the dual advantages of "large stroke adjustment + low folding volume", perfectly covers the light simulation test and light angle requirement of various automobile parts types, and flexibly adjusts the height of the light source.

[0039] The utility model makes the test closer to the dynamic characteristics of natural light, avoids the deviation of the fixed angle, provides a scene test scheme for parts of different installation positions, restores the local physical effect depending on the angle, exposes the hidden failure risk, improves the function test accuracy of the optical parts, simulates long-term uneven aging, verifies the overall durability, covers the extreme angle scene, and ensures the limit adaptability.

[0040] In summary, the utility model has the advantages of significantly improving the authenticity and reliability of the test results, avoiding the test loopholes caused by "single angle", ensuring the performance stability of the parts in the whole life cycle and the whole use scene, and is especially suitable for the light simulation technology field used in automobile test. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a side view structure schematic diagram of the utility model lighting system;

[0042] Figure 2 It is a side view structure schematic diagram of the utility model lighting system;

[0043] Figure 3 It is a side view structure schematic diagram of the utility model lighting system;

[0044] Figure 4 It is a side view structure schematic diagram of the utility model lighting system;

[0045] Figure 5 It is a side view structure schematic diagram of the utility model lighting system;

[0046] Figure 6 It is a side view structure schematic diagram of the utility model lighting system; Figure 5 It is a side view structure schematic diagram of the utility model lighting system;

[0047] Figure 7 It is a side view structure schematic diagram of the utility model lighting system;

[0048] Reference numerals in the drawings:

[0049] Lamp holder 1, lamp 11, sling 12;

[0050] Lifting mechanism 2, mounting plate 21, scissor assembly 22, scissor 221, first scissor 2211, second scissor 2212, drive assembly 23, motor 231, lead screw 232, lead screw nut 233, sliding assembly 24, auxiliary sliding rail 241, auxiliary sliding block 242, auxiliary sliding plate 243,

[0051] Translation mechanism 3, moving platform 30, sliding block assembly 31, sliding block 311, sliding rail 312, electric lead screw assembly 32, drive motor 321, drive lead screw 322, drive lead screw nut 323,

[0052] Overturning mechanism 4, overturning shaft 41, drive shaft 42, transmission assembly 43, overturning driver 44;

[0053] Test chamber 5;

[0054] Shaking test platform 6;

[0055] Gantry crane 7. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0057] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0059] Embodiment 1:

[0060] As shown in Figure 1 , Figure 3 , Figure 5 , a lighting system comprises:

[0061] a lamp holder 1, a lifting mechanism 2, a translation mechanism 3 and a turnover mechanism 4;

[0062] The lamp holder 1 is uniformly distributed with a plurality of lamps 11, and the lifting mechanism 2, the translation mechanism 3 and the turnover mechanism 4 are installed above the lamp holder 1;

[0063] The lifting end of the lifting mechanism 2 is connected with the lamp holder 1, and the lifting mechanism 2 drives the lamp holder 1 to move up and down;

[0064] The moving platform 30 of the translation mechanism 3 is connected with the lifting mechanism 2, and the translation mechanism 3 drives the lifting mechanism 2 and the lamp holder 1 to move horizontally through the moving platform 30;

[0065] The turnover mechanism 4 is installed between the lifting mechanism 2 and the moving platform 30, and the turnover mechanism 4 drives the lifting mechanism 2 and the lamp holder 1 to be set in a turnover manner.

[0066] Among them, the lamp holder 1 is arranged in a square box, and the lamp 11 is arranged in a long strip shape.

[0067] Further, the lamp holder 1 is suspended by a sling 12.

[0068] It should be noted that compared with the existing vertical irradiation light simulation system, the lighting system of the present application is additionally provided with a translation mechanism 3 and a turnover mechanism 4, which cooperate to realize the translation and turnover of the lamp holder 1, and further change the irradiation angle of the lamp 11 installed on the lamp holder 1.

[0069] Specifically:

[0070] In the automotive parts light simulation test, the light angle change is introduced to break through the limitation of "fixed angle light" and better simulate the real characteristics of "dynamic and multi-angle" natural light. The solar altitude angle changes continuously with time, season and latitude in nature. Different angles of light will have different physical effects on parts (such as local temperature, reflectivity / absorptivity, shadow coverage).

[0071] This dynamic angle simulation can bring six core advantages, and its necessity can be fully reflected by combining with specific parts test scenarios. The following will be explained in detail in dimensions:

[0072] I. More accurate restoration of the "dynamic timing characteristics" of natural light, avoiding the test bias of fixed angle

[0073] Natural light is not "single angle direct", but from low angle oblique in the morning (such as solar altitude angle 10°-30°), to high angle direct at noon (such as summer noon altitude angle 60°-90°), to low angle oblique in the evening, forming a 24-hour angle cycle. At the same time, seasonal changes will cause differences in the altitude angle at noon (such as the altitude angle at noon in summer is about 73°, and in winter it is about 27°).

[0074] Fixed angle test (such as only 90° direct) cannot simulate this dynamic change, which may cause the test results to deviate from the actual use scene. Changing the light angle can achieve:

[0075] Timing angle cycle: through the program setting "low angle (simulate morning / evening) → high angle (simulate noon) → low angle", the dynamic process of the whole day light angle is restored;

[0076] Seasonal / latitude adaptation: the altitude angle at noon can be adjusted (such as setting 27° to simulate winter in a certain place, and 90° to simulate the equator), to verify the adaptability of parts in different regions and seasons.

[0077] For example: testing the paint anti-aging performance of the car roof, fixed 90° direct can only simulate the noon strong light, but if 30° oblique in the morning is added, the scene of sunlight "tangential irradiation" along the edge of the roof can be restored, avoiding the omission of local light loss and fading at the edge of the roof due to oblique (the edge part may be slightly thinner in paint thickness, and the energy absorption is more concentrated when oblique, so the aging speed is faster).

[0078] II. Scene-based precise testing for parts "installation position differences"

[0079] The light angle received by automobile parts differs essentially due to different installation positions (e.g. roof vs. door, front windshield vs. instrument panel, chassis vs. rearview mirror), and fixed angles cannot cover the real illumination state of all positions. Changing the light angle can "customize" the light angle according to the actual installation scene of the parts, ensuring that the test is consistent with the actual use environment.

[0080] The different installation positions of the parts have different requirements for the light angle, as shown in the following table:

[0081]

[0082] By matching the above "installation position-light angle" correspondence, "over-testing" (e.g. chassis parts are tested by direct light, which is misjudged as not heat-resistant) or "under-testing" (e.g. the shadow area of the door joint is not illuminated, missing the aging risk) caused by "one-size-fits-all" fixed angle testing can be avoided.

[0083] III. Restoring "angle-dependent physical effects" and exposing hidden failure risks

[0084] Changes in light angle will directly change the reflectivity, absorptivity, and energy distribution of light on the surface of the parts, and then cause differences in local physical effects - these differences are masked in fixed angle testing, but can be accurately restored by changing the angle, thereby exposing hidden failure risks. This mainly manifests in the following three aspects:

[0085] 1. Restoration of uneven local temperature distribution

[0086] Different angles of light, different energy absorption efficiency on the surface of the parts:

[0087] High-angle direct light, perpendicular incidence of light, highest energy density absorbed by the material surface (e.g. roof temperature can reach above 70°C at noon);

[0088] Low-angle oblique light, small angle between light and material surface, part of the energy is reflected, low absorption efficiency, but may cause "local focusing" (e.g. convex structure of the part, oblique light is superimposed in the concave part, forming a local high temperature area).

[0089] For example: the housing of the automobile outside rearview mirror (with convex design), fixed high-angle direct light test can only simulate the high temperature of the front surface of the housing; while adding low-angle oblique light, it can be found that the local temperature of the concave part connecting the housing and the base is 5-8°C higher than the front surface, which is prone to cause the plastic to age and crack in the long-term use - this hidden high temperature risk can only be exposed by changing the angle.

[0090] 2. Alternating aging of shadow and non-shadow areas

[0091] In nature, the convex structure of parts (such as car door handle, body line) will form dynamic shadow with the change of light angle, and the aging speed of shadow area and non-shadow area is significantly different (the shadow area is less light, and the aging is slow; the non-shadow area ages fast), which will lead to "local color difference" and "uneven structure stress" after long-term use.

[0092] Fixed angle test can only form fixed shadow and cannot simulate the alternating change of "shadow area-non-shadow area" (such as morning shadow on the left side and evening shadow on the right side). Changing the light angle can realize the dynamic movement of the shadow and verify the performance of the parts under "alternating illumination":

[0093] For car body paint: simulate the alternating aging of different areas to avoid "local color difference test omission" caused by fixed shadow;

[0094] For sealant strip: simulate the alternating thermal expansion and contraction of the strip in the shadow area (low temperature) and the non-shadow area (high temperature) to verify whether the sealing performance decreases due to uneven stress.

[0095] 3. Verification of "directional aging" of material surface

[0096] Some high polymer materials (such as plastics, coatings) have "directional aging" characteristics. The arrangement direction of material molecular chain is different, and the resistance to different angle light is different (such as the anti-ultraviolet ability along the material stretching direction may be weaker than the perpendicular direction).

[0097] Fixed angle test can only verify the aging performance of a single direction, while changing the light angle (such as 0°, 45°, 90° relative to the material texture direction) can comprehensively evaluate the aging resistance of the material under different incident directions, avoiding the actual use failure caused by "directional difference" (such as the plastic trim panel on the side of the car body, if only tested at 0° direction, the risk of rapid cracking at 45° direction may be missed).

[0098] Four, improve the "functional accuracy" of optical parts test

[0099] The core function of automotive optical parts (such as headlamp lens, HUD, automatic anti-dazzling rearview mirror, camera lens) is highly dependent on "light angle", and the angle of incident light directly affects its transmittance, reflectivity, and imaging accuracy. Fixed angle test cannot cover the multi-angle incident scene in actual use, while changing the light angle can significantly improve the test accuracy.

[0100] 1. Headlamp / tail lamp lens: verify the full-angle transmittance and fogging uniformity

[0101] The transmittance and fogging degree of the lens (usually made of PC material) changes with the light angle:

[0102] High-angle direct light, light perpendicular to the lampshade, highest transmittance, fogging effect most obvious;

[0103] Low-angle oblique light, light refracts on the surface of the lampshade, transmittance decreases (oblique light in the lampshade path is longer, easy to be scattered by the fogging layer).

[0104] Fixed-angle testing can only verify the transmittance at a single angle, while changing the angle (such as 30°, 60°, 90°) can:

[0105] Simulate the transmittance effect of the lampshade under oblique light in the evening / morning, avoid the risk of "insufficient low-angle lighting at night" caused by measuring only direct light;

[0106] Verify whether the lampshade fogging is uniform (if the transmittance at a certain angle drops sharply, it means that the area is severely fogged and needs to be optimized).

[0107] 2. HUD (Head-Up Display): Verify display clarity under multi-angle incidence

[0108] The principle of HUD is to project images onto the front windshield and then reflect them into the driver's eyes, and its display clarity is greatly affected by the "angle of incident light":

[0109] High-angle direct light at noon, the angle of incident light and HUD reflected light is close, easy to produce "glare", resulting in blurred display;

[0110] Low-angle backlight in the morning, incident light is oblique from the front, which may completely cover the HUD reflected light, resulting in invisible images.

[0111] Fixed-angle testing cannot simulate these complex scenarios, while changing the angle of illumination can:

[0112] Simulate the HUD display effect under "backlight, side light, direct light" and other scenarios, verify whether its automatic brightness adjustment function is effective;

[0113] Optimize the coating process of the front windshield (such as adjusting the coating angle, reducing the reflection at a specific incidence angle).

[0114] 3. Vehicle-mounted camera: Verify imaging stability under multi-angle light

[0115] The vehicle-mounted camera (such as front-view camera, surround-view camera) of the automatic driving or ADAS system, its imaging accuracy is significantly affected by the angle of light:

[0116] Low-angle backlight (such as morning / evening), the camera is prone to "overexposure" or "ghosting";

[0117] Side oblique light (such as afternoon side sunlight), may cause the shadow of the car to cover the pedestrian, causing recognition errors.

[0118] Changing the light angle can simulate the light scene in these real road conditions, verify the camera's:

[0119] auto exposure adjustment capability (such as whether it can quickly suppress overexposure in backlight);

[0120] anti-interference ability of image processing algorithm (such as target recognition accuracy under shadow).

[0121] Five, simulate "non-uniform aging in long-term use", verify the overall durability of the parts

[0122] The design life of automotive parts is usually 5-15 years. Due to the dynamic change of light angle in long-term use, the aging degree of different areas of the parts is significantly different (i.e. "non-uniform aging"), which will lead to:

[0123] appearance problems: such as "local color difference" of the car body paint surface (the color of the straight shot area is deeper than that of the side oblique area);

[0124] structural problems: such as internal stress of plastic parts due to different local aging rates, leading to cracking;

[0125] functional problems: such as local elastic decline of sealing elements due to non-uniform aging, leading to sealing failure.

[0126] Fixed angle test can only cause "uniform aging" (the aging degree of all illuminated areas is consistent), and cannot simulate this "non-uniform aging". Changing the light angle through "dynamic angle cycle" (such as simulating 12 hours of angle change every day for 1000 hours) can accelerate the restoration of the non-uniform aging process in long-term use, and verify the parts:

[0127] appearance durability: whether there is an acceptable color difference (such as the national standard requires that the color difference ΔE be less than or equal to 2.0);

[0128] structural durability: whether it cracks due to non-uniform aging;

[0129] functional durability: whether the function is reduced due to local aging (such as the loss of elasticity of the sealing strip, leading to air leakage).

[0130] For example: the sunroof sealing strip of the car roof. Fixed angle test can only simulate the aging of a certain area of the sealing strip; and through angle change (simulate the sunroof top at noon and the sunroof edge at sunset), it can be found that the contact edge of the sealing strip and the sunroof glass (oblique area) ages 30% slower than the top (directly shot area). Long-term use, the top sealing strip elasticity decreases more obviously, which may lead to sunroof water leakage - this functional risk caused by non-uniform aging can only be exposed by angle change test.

[0131] Six, cover "extreme light angle scene", verify the limit adaptability of the parts

[0132] In addition to the conventional angle change, changing the light angle can also cover some "extreme light angle scenes", which are not common but have higher requirements for the limit performance of the parts, and may cause failure in extreme environments if not tested. Mainly include:

[0133] 1. Low angle long time light in high latitude area

[0134] In summer, "midnight sun" will occur in high latitude area, with extremely low light angle (such as solar elevation angle <20°) and long duration (such as more than 18 hours). This low angle long time light will cause:

[0135] The side of the vehicle body is irradiated by oblique light for a long time, although the local temperature is not high, but the light time is doubled, which accelerates the aging of the material;

[0136] The front windshield is in backlight for a long time, and the HUD display and the driver's field of view are affected.

[0137] By setting a low angle (such as 10°, 15°) long time light simulation, the adaptability of the parts in this kind of extreme scene can be verified, avoiding early failure of the vehicle model exported to high latitude area.

[0138] 2. High angle strong radiation light

[0139] In high altitude area, the atmosphere is thin, the solar radiation intensity is large, and the light angle at noon is close to 90° (high angle direct), with extremely high energy density (such as radiation intensity can reach 1200W / m², far exceeding the 1000W / m² of plain area). This high angle strong radiation will cause:

[0140] The surface temperature of the roof and the front windshield rises sharply (more than 80℃), which accelerates the aging of the paint and plastic parts;

[0141] Vehicle electronic components (such as roof antenna) appear signal attenuation due to high temperature and high radiation.

[0142] By setting high angle (such as 80°, 90°) + strong radiation intensity simulation, the heat resistance and radiation resistance of the parts under the extreme light of the plateau can be verified.

[0143] Therefore, changing the light angle is a depth optimization of "natural light simulation", and its core advantages can be summarized as "from'static simulation' to 'dynamic restoration', from'single scene' to 'full scene coverage', from'surface test' to 'hidden risk exposure'".

[0144] Example 2:

[0145] The difference between the embodiment 2 of the utility model and the embodiment 1 is described with reference to the embodiment 1.

[0146] As shown in the utility model, the specific structure of the lifting mechanism 2 includes the mounting plate 21 and the scissor assembly 22. Figure 4

[0147] The mounting plate 21 is parallel to the lamp stand 1, and the mounting plate 21 is rotationally connected with the moving platform 30.

[0148] The scissor assembly 22 is installed between the mounting plate 21 and the lamp stand 1, and the scissor assembly 22 includes two groups of cross-arranged scissors 221, the cross positions of the scissors 221 are rotationally connected through rotating shafts, and the scissors 221 adjust the distance between the mounting plate 21 and the lamp stand 1 by changing the included angle at the cross position, for example, when the included angle α at the cross position of the scissors 221 decreases, the distance between the lamp stand 1 and the mounting plate 21 increases, and vice versa.

[0149] Specifically, the scissors 221 include the first scissors 2211 and the second scissors 2212, wherein the upper end of the first scissors 2211 is hingedly arranged with the mounting plate 21, the lower end of the first scissors 2211 is slidingly arranged opposite to the lamp stand 1, the upper end of the second scissors 2212 is movably arranged with the mounting plate 21, and the lower end of the second scissors 2212 is hingedly arranged with the lamp stand 1.

[0150] As shown in the utility model, the lifting mechanism 2 further includes the driving assembly 23 and the sliding assembly 24. Figure 4

[0151] The driving assembly 23 is installed on the mounting plate 21, and the driving assembly 23 drives the end of the scissors 221 to move and changes the included angle at the cross position of the scissors 221, and specifically, the driving assembly 23 is an electric screw rod module structure, the driving assembly 23 is installed at the lower end of the first scissors 2211, and the driving assembly 23 includes the motor 231, the screw rod 232 and the screw rod nut 233.

[0152] The sliding assembly 24 is installed at the movable end of the scissors 221, the sliding assembly 24 is a sliding block module, and the sliding assembly 24 provides the freedom degree of the end of the scissors 221 to move, the sliding assembly 24 is arranged at the driving assembly 23 and the upper end of the second scissors 2212 respectively, and the sliding assembly 24 includes the auxiliary sliding rail 241, the auxiliary sliding block 242 and the auxiliary sliding plate 243.

[0153] ​​Specifically, the motor 231 is mounted on the mounting plate 21, the lead screw 232 is driven by the motor 231 to rotate, the lead screw nut 233 is sleeved on the lead screw 232, and the lead screw nut 233 is mounted on the auxiliary sliding plate 243. The auxiliary sliding plate 243 slides through the cooperation of the auxiliary slider 242 and the auxiliary slide rail 241. Correspondingly, the upper end of the second scissor fork 2212 also slides through the cooperation of the auxiliary sliding plate 243, the auxiliary slider 242 and the auxiliary slide rail 241.

[0154] Example 3:

[0155] Referring to Example 1, the difference between Example 3 and Example 1 lies in the following:

[0156] like Figure 2 As shown, the translation mechanism 3 described in this utility model also includes a slider assembly 31 and an electric lead screw assembly 32;

[0157] Two sets of slider assemblies 31 are arranged in parallel, and the sliders 311 on the slider assembly 31 are connected to the mobile platform 30.

[0158] The electric lead screw assembly 32 is arranged parallel to the slider assembly 31, and the electric lead screw assembly 32 drives the moving platform 30 to translate along the slide rail 312 in the slider assembly 31.

[0159] The specific structure of the electric lead screw assembly 32 is similar to that of the drive assembly 23. The electric lead screw assembly 32 includes a drive motor 321, a drive lead screw 322, and a drive lead screw nut 323. The drive motor 321 electrically drives the lead screw 322 to rotate, while the drive lead screw nut 323 is mounted on the moving platform 30. The movement of the lamp holder 1 is achieved by moving the moving platform 30.

[0160] Example 4:

[0161] Referring to Example 1, the difference between Example 4 and Example 1 lies in the following:

[0162] like Figure 5 , 6 As shown, the flipping mechanism 4 in this utility model includes a flipping shaft 41, a drive shaft 42, a transmission assembly 43, and a flipping driver 44;

[0163] The flip shaft 41 is fixedly installed on the mounting plate 21, and the end of the flip shaft 41 extending outward from the mounting plate 21 is rotatably connected to the moving platform 30.

[0164] The drive shaft 42 is rotatably mounted on the mobile platform 30, and the drive shaft 42 is arranged parallel to the tilting shaft 41.

[0165] The transmission assembly 43 is disposed between the flip shaft 41 and the drive shaft 42. The drive shaft 42 drives the flip shaft 41 to rotate through the transmission assembly 43. The transmission assembly 43 is preferably a gear transmission group.

[0166] The flip drive 44 is mounted on the mobile platform 30, and the flip drive 44 drives the drive shaft 42 to rotate. The flip drive 44 is preferably a motor.

[0167] It should be noted that the flip driver 44 drives the drive shaft 42 to rotate, and in conjunction with the transmission connection of the transmission component 43, the drive shaft 42 drives the flip shaft 41 to rotate. When the flip shaft 41 flips, the mounting plate 21 will also flip, thereby driving the lamp holder 1 to flip.

[0168] Example 5:

[0169] like Figure 7 As shown, this utility model also provides a testing device based on the lighting system described in any one of embodiments 1-4, further comprising:

[0170] Test chamber 5, the ceiling of which is equipped with a lighting system, and the floor of which is equipped with a vibration test platform 6.

[0171] In addition, it also includes: a gantry crane 7, which is set across the vibration test platform 6 and is movable and adjustable along the depth direction of the test chamber 5.

[0172] Specifically, the lighting system in Examples 1-4 is used as a light simulation system in the test chamber of Example 5 as a test system for light testing of automotive parts. The vibration test platform 6 is used to install automotive parts and simulate the vibration of automotive parts during vehicle operation. The gantry crane 7 is used to lift automotive parts to facilitate their installation.

[0173] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lighting system, characterized in that, include: The lamp holder (1), lifting mechanism (2), translation mechanism (3) and flipping mechanism (4); The lamp holder (1) is evenly distributed with a number of lamps (11), and a lifting mechanism (2), a translation mechanism (3) and a flipping mechanism (4) are installed above the lamp holder (1). The lifting end of the lifting mechanism (2) is installed and connected to the lamp holder (1), and the lifting mechanism (2) drives the lamp holder (1) to move up and down; The moving platform (30) of the translation mechanism (3) is connected to the lifting mechanism (2). The translation mechanism (3) drives the lifting mechanism (2) and the lamp holder (1) to move horizontally through the moving platform (30). The flipping mechanism (4) is installed between the lifting mechanism (2) and the moving platform (30). The flipping mechanism (4) drives the lifting mechanism (2) and the lamp holder (1) to flip.

2. The lighting system according to claim 1, characterized in that: The lamp holder (1) is arranged in a square frame, and the lamp (11) is arranged in a long strip shape.

3. A lighting system according to claim 1, characterized in that: The lamp holder (1) is suspended by a sling (12).

4. A lighting system according to claim 1, characterized in that: The lifting mechanism (2) includes a mounting plate (21) and a scissor assembly (22); The mounting plate (21) is arranged parallel to the lamp holder (1), and the mounting plate (21) is rotatably connected to the moving platform (30); The scissor lift assembly (22) is installed between the mounting plate (21) and the lamp holder (1). The scissor lift assembly (22) includes two sets of scissors (221) arranged in a cross configuration. The scissors (221) are rotatably connected at the cross position, and the scissors (221) adjust the distance between the mounting plate (21) and the lamp holder (1) by changing the included angle at the cross position.

5. A lighting system according to claim 4, characterized in that: The lifting mechanism (2) also includes a drive assembly (23) and a sliding assembly (24). The drive assembly (23) is mounted on the mounting plate (21). The drive assembly (23) drives the end of the scissor lift (221) to move, changing the included angle at the crossing position of the scissor lift (221). The sliding component (24) is installed on the movable end of the scissor (221). The sliding component (24) is a slider module and provides the degree of freedom for the movement of the end of the scissor (221).

6. A lighting system according to claim 5, characterized in that: The drive component (23) is one of an electric lead screw module, a pneumatic push rod module, an electric push rod module, or a hydraulic push rod module.

7. A lighting system according to claim 1, characterized in that: The translation mechanism (3) also includes a slider assembly (31) and an electric lead screw assembly (32). Two sets of slider assemblies (31) are arranged in parallel, and the sliders (311) on the slider assembly (31) are connected to the mobile platform (30); The electric lead screw assembly (32) is arranged parallel to the slider assembly (31), and the electric lead screw assembly (32) drives the moving platform (30) to translate along the slide rail (312) in the slider assembly (31).

8. A lighting system according to claim 4, characterized in that: The flipping mechanism (4) includes a flipping shaft (41), a drive shaft (42), a transmission assembly (43), and a flipping driver (44). The flip shaft (41) is fixedly installed on the mounting plate (21), and the end of the flip shaft (41) extending outward from the mounting plate (21) is rotatably connected to the moving platform (30). The drive shaft (42) is rotatably mounted on the mobile platform (30), and the drive shaft (42) is arranged parallel to the tilting shaft (41); The transmission assembly (43) is disposed between the flip shaft (41) and the drive shaft (42), and the drive shaft (42) drives the flip shaft (41) to rotate through the transmission assembly (43); The flip drive (44) is mounted on the mobile platform (30) and drives the drive shaft (42) to rotate.

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