A device for testing samples of automotive lamps
By using a servo motor to drive the threaded rod to raise and lower the clamping plate and buffer mechanism, combined with a spectral photometer, the problems of clamping damage and incomplete detection in existing automotive lighting testing devices are solved, achieving efficient and safe all-round optical performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG LIUYI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
AI Technical Summary
Existing automotive lighting testing equipment suffers from uneven clamping force or excessive force, resulting in scratches on the lamp surface and damage to the internal structure. Furthermore, it is difficult to achieve accurate testing from all angles and perspectives, which affects the accuracy of optical performance evaluation.
The design employs a servo motor and threaded rod drive, combined with a buffer mechanism and a genomic photometer, to achieve precise clamping of the lamps and multi-angle optical performance testing. The servo motor drives the threaded rod to raise and lower the clamping plate, the buffer spring reduces the clamping impact, and the genomic photometer performs all-round optical parameter measurements.
It improves the safety and accuracy of luminaire testing, avoids clamping damage, ensures the acquisition of comprehensive optical parameters, and meets stringent optical standard requirements.
Smart Images
Figure CN224365743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting sample testing technology, and in particular to a device for testing automotive lighting samples. Background Technology
[0002] In the automotive manufacturing industry, the optical performance and structural stability of automotive lighting fixtures directly affect driving safety and vehicle quality. Therefore, accurate testing of lighting fixture samples has become a crucial aspect of product development and quality control. Currently, most mainstream automotive lighting fixture testing devices on the market adopt a fixed clamping and single-angle testing mode. Traditional devices typically use rigid clamps to directly fix the lighting fixtures. This method is prone to problems such as scratches on the surface of the lighting fixture and damage to the internal structure due to uneven clamping force or excessive force during the clamping process, affecting the accuracy of the optical performance and lifespan assessment of the lighting fixture. In addition, most existing equipment relies on manual adjustment of the testing instrument position, which is not only inefficient but also makes it difficult to achieve accurate testing of the lighting fixture from all directions and multiple angles. It is easy to miss optical parameters in the edge areas or specific angles of the lighting fixture, failing to meet the increasingly stringent optical standards for automotive lighting fixtures. Utility Model Content
[0003] The purpose of this invention is to solve the problems existing in the prior art by proposing a device for testing automotive lighting samples.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A device for testing automotive lighting samples includes a base plate. Support rods are fixedly connected to the four opposite corners of the top of the base plate. A top plate is fixedly connected to the top of each of the four support rods. A servo motor is fixedly connected to the top of the top plate. A threaded rod is fixedly connected to the output end of the servo motor, penetrating the top plate. A common movable plate is connected to the outer walls of the four support rods. The movable plate is connected to the threaded rod. A common lifting block is slidably connected to the outer walls of two support rods on the same side. Both lifting blocks are connected to a movable plate via a connecting mechanism. A clamping plate is connected to the movable plate via a buffer mechanism. A turntable is fixedly connected to the bottom of the threaded rod. A spectral photometer body is fixedly connected to the edge of the outer wall of the turntable.
[0006] Preferably, the movable plate has a threaded opening at its center, the outer wall of the threaded rod has an external thread, the inner wall of the threaded opening has an internal thread that matches the external thread, and the inner wall of the threaded opening is threadedly connected to the outer wall of the threaded rod.
[0007] Preferably, a return spring is sleeved on the outer wall of the support rod, and the two ends of the return spring are fixedly connected to the bottom of the lifting block and the top of the base plate, respectively.
[0008] Preferably, the connecting mechanism includes a first connecting block fixedly connected to the outer wall of the lifting block, and a second connecting block fixedly connected to the outer wall of the movable plate, wherein the first connecting block and the second connecting block are connected by a connecting rod.
[0009] Preferably, both the first connecting block and the second connecting block are provided with mounting ports, the inner sidewalls of the mounting ports are provided with mounting shafts, and both ends of the connecting rod are provided with rotating ports, the inner sidewalls of the rotating ports and the outer sidewalls of the mounting shafts are rotatably connected.
[0010] Preferably, the buffer mechanism includes two sets of telescopic rods fixedly connected between the movable plate and the clamping plate. The outer wall of the telescopic rod is fitted with a buffer spring, and the two ends of the buffer spring are fixedly connected to the outer wall of the movable plate and the clamping plate, respectively.
[0011] Preferably, the movable plate has sliding openings at each of its four opposite corners, and the inner sidewalls of the four sliding openings are slidably connected to the outer sidewalls of the support rods.
[0012] This utility model has the following advantages compared with the prior art:
[0013] 1. This utility model achieves precise lifting and positioning of clamping and testing components through the transmission design of servo motor and threaded rod. It is convenient and efficient to operate. The telescopic rod and buffer spring in the buffer mechanism can effectively buffer the impact force on the lamp sample during the clamping process, avoid damage to the lamp due to excessive clamping force, and improve the safety and accuracy of sample testing.
[0014] 2. This utility model uses a spectral photometer mounted on a rotatable turntable to perform multi-angle optical performance testing around the lamp sample, ensuring the acquisition of comprehensive optical parameters of the lamp and providing comprehensive data support for lamp quality assessment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a sample testing device for automotive lighting fixtures proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the buffer mechanism structure of an automotive lighting sample testing device proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the moving plate structure of an automotive lighting sample testing device proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the connecting rod structure of a sample testing device for automotive lighting proposed in this utility model.
[0019] In the diagram: 1. Base plate; 2. Support rod; 3. Top plate; 4. Servo motor; 5. Threaded rod; 6. Moving plate; 7. Lifting block; 8. Movable plate; 9. Clamping plate; 10. Turntable; 11. Distributed photometer body; 12. Threaded port; 13. Return spring; 14. First connecting block; 15. Second connecting block; 16. Connecting rod; 17. Telescopic rod; 18. Buffer spring; 19. Sliding port. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Reference Figures 1-4 A device for testing automotive lighting samples includes a base plate 1. Support rods 2 are fixedly connected to the four opposite corners of the top of the base plate 1. A top plate 3 is fixedly connected to the top of each of the four support rods 2, forming a stable frame structure. A servo motor 4 is fixedly connected to the top of the top plate 3, with its output end extending vertically downwards. A threaded rod 5 is fixedly connected to the output end of the servo motor 4, penetrating the top plate 3. A single movable plate 6 is connected to the outer walls of the four support rods 2. The movable plate 6 is connected to the threaded rod 5. A threaded opening 12 is provided at the center of the movable plate 6. The outer wall of the threaded rod 5 has external threads, and the inner wall of the threaded opening 12 has internal threads adapted to the external threads. The inner wall of the threaded opening 12 is threadedly connected to the outer wall of the threaded rod 5. Sliding openings 19 are provided at the four opposite corners of the movable plate 6. The inner walls of the four sliding openings 19 are slidably connected to the outer walls of the support rods 2, ensuring the vertical lifting stability of the movable plate 6 while limiting its horizontal displacement.
[0023] The two support rods 2 located on the same side are slidably connected to the same lifting block 7 on their outer side walls. The outer side walls of the support rods 2 are fitted with a return spring 13. The two ends of the return spring 13 are fixedly connected to the bottom of the lifting block 7 and the top of the base plate 1, respectively. This design allows the lifting block 7 to remain in its initial position by relying on the elastic restoring force of the return spring 13 when there is no external force.
[0024] Both lifting blocks 7 are connected to movable plates 8 via a connecting mechanism. The connecting mechanism includes a first connecting block 14 fixedly connected to the outer wall of the lifting block 7, and a second connecting block 15 fixedly connected to the outer wall of the movable plate 8. The first connecting block 14 and the second connecting block 15 are connected by a connecting rod 16. Both the first connecting block 14 and the second connecting block 15 are provided with mounting holes, and the inner wall of each mounting hole is provided with a mounting shaft. Both ends of the connecting rod 16 are provided with rotating holes, and the inner wall of the rotating hole is rotatably sleeved with the outer wall of the mounting shaft, thereby realizing the flexible rotation of the movable plate 8 relative to the lifting block 7.
[0025] The movable plate 8 is connected to the clamping plate 9 through a buffer mechanism. The buffer mechanism includes two sets of telescopic rods 17 fixedly connected between the movable plate 8 and the clamping plate 9. A buffer spring 18 is sleeved on the outer wall of the telescopic rod 17. The two ends of the buffer spring 18 are fixedly connected to the outer walls of the movable plate 8 and the clamping plate 9, respectively. This buffer structure can effectively reduce the impact force on the lamp sample during the clamping process, avoid damage, and also increase the buffer for clamping the lamp.
[0026] A turntable 10 is fixedly connected to the bottom of the threaded rod 5. A distribution photometer body 11 is fixedly connected to the outer edge of the turntable 10. The distribution photometer body 11 is used to measure key optical parameters of the lamp, such as light intensity distribution, beam angle, center light intensity, and luminous flux.
[0027] The specific working principle of this utility model is as follows:
[0028] In the initial state, the lamp sample is placed on the surface of the base plate 1. When the servo motor 4 is started, the motor drives the threaded rod 5 to rotate. Due to the threaded transmission relationship between the threaded opening 12 and the threaded rod 5, the moving plate 6 will move vertically up and down along the support rod 2. When the moving plate 6 descends, it will push the lifting blocks 7 on both sides to slide down along the support rod 2. During this process, the return spring 13 is compressed. The lifting blocks 7 drive the two movable plates 8 to move relative to each other through the connecting mechanism, so that the clamping plate 9 moves closer to the lamp sample until the lamp sample is clamped and fixed, and the lamp is fixed on the rotating table.
[0029] After the lamp sample is clamped and fixed, the servo motor 4 drives the threaded rod 5 to rotate, so that the turntable 10 and the spectral photometer body 11 rotate to a suitable detection position. The spectral photometer body 11 rotates around the lamp sample at multiple angles, and performs horizontal and vertical rotation scanning around the lamp, measuring the light intensity value at different angles point by point. The optical performance parameters such as the luminous intensity and light distribution of the lamp are detected in all directions. After the detection is completed, the servo motor 4 rotates in the opposite direction, the moving plate 6 rises, and under the elastic action of the reset spring 13, the lifting block 7 drives the clamping plate 9 to reset, and the lamp sample can be taken out.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for testing automotive lighting samples, comprising a base plate (1), characterized in that, The base plate (1) is fixedly connected to four opposite corners of the top, and the top of the four support rods (2) is fixedly connected to a top plate (3). The top of the top plate (3) is fixedly connected to a servo motor (4). The output end of the servo motor (4) is fixedly connected to a threaded rod (5). The threaded rod (5) passes through the top plate (3). The outer walls of the four support rods (2) are connected to the same moving plate (6). The moving plate (6) is connected to the threaded rod (5). The outer walls of the two support rods (2) on the same side are slidably connected to the same lifting block (7). The two lifting blocks (7) are connected to a movable plate (8) through a connecting mechanism. The movable plate (8) is connected to a clamping plate (9) through a buffer mechanism. The bottom of the threaded rod (5) is fixedly connected to a turntable (10). The edge of the outer wall of the turntable (10) is fixedly connected to a distribution photometer body (11).
2. The apparatus for testing automotive lighting samples according to claim 1, characterized in that, The movable plate (6) has a threaded opening (12) at its center. The outer wall of the threaded rod (5) has an external thread, and the inner wall of the threaded opening (12) has an internal thread that matches the external thread. The inner wall of the threaded opening (12) is threadedly connected to the outer wall of the threaded rod (5).
3. The apparatus for testing automotive lighting samples according to claim 1, characterized in that, The outer wall of the support rod (2) is fitted with a reset spring (13), and the two ends of the reset spring (13) are fixedly connected to the bottom of the lifting block (7) and the top of the base plate (1), respectively.
4. The apparatus for testing automotive lighting samples according to claim 1, characterized in that, The connecting mechanism includes a first connecting block (14) fixedly connected to the outer wall of the lifting block (7), and a second connecting block (15) fixedly connected to the outer wall of the movable plate (8). The first connecting block (14) and the second connecting block (15) are connected by a connecting rod (16).
5. The apparatus for testing automotive lighting samples according to claim 4, characterized in that, The first connecting block (14) and the second connecting block (15) are both provided with mounting ports, and the inner sidewalls of the mounting ports are both provided with mounting shafts. The two ends of the connecting rod (16) are both provided with rotating ports, and the inner sidewalls of the rotating ports are rotatably connected to the outer sidewalls of the mounting shafts.
6. The apparatus for testing automotive lighting samples according to claim 1, characterized in that, The buffer mechanism includes two sets of telescopic rods (17) fixedly connected between the movable plate (8) and the clamping plate (9). The outer side wall of the telescopic rod (17) is fitted with a buffer spring (18), and the two ends of the buffer spring (18) are fixedly connected to the outer side wall of the movable plate (8) and the clamping plate (9) respectively.
7. The apparatus for testing automotive lighting samples according to claim 1, characterized in that, The movable plate (6) has sliding openings (19) at each of its four opposite corners, and the inner walls of the four sliding openings (19) are slidably connected to the outer walls of the support rod (2).