Sunlight focus point testing device

Abstract

The utility model discloses a sunlight focus point testing device which comprises a first arc-shaped track and a second arc-shaped track with the same radius, the circle center of the first arc-shaped track and the circle center of the second arc-shaped track coincide, the second arc-shaped track is slidably connected with the first arc-shaped track, and the second arc-shaped track is slidably connected with a light source. Light rays of the light source point to the circle center of the first arc-shaped track, the first arc-shaped track is provided with plane angle scale marks, the second arc-shaped track is provided with vertical plane angle scale marks, and extension lines of the plane angle scale marks and the vertical plane angle scale marks penetrate through the circle center of the first arc-shaped track. The position of the light source can be accurately calculated according to known radius data of the first arc-shaped track and the second arc-shaped track and readings of the plane angle scale line and the vertical plane angle scale line, and data recording is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp detection, in particular to a sunlight focusing point testing device. Background Art

[0002] With the rapid development of automotive lighting technology, compared with traditional lamps, lamps with lenses have obvious light and dark cut-off lines, uniform brightness, strong penetration, and low light loss. However, during the use of lamps, it was found that the parts around the lamp lenses were ablated. Studies have found that after sunlight is refracted and emitted by the lens, a focal spot is formed on or around the parts, resulting in concentrated temperature and ablation of the parts, causing immeasurable losses to car manufacturers and car lamp manufacturers.

[0003] In order to improve the quality of car lights, sample car lights need to be tested for simulated sunlight focusing and burning before mass production.

[0004] Normally, the light receiving range of a headlight is in a quarter of a sphere in the driving direction of the headlight. It is necessary to test the position of the sunlight focus point on the outer surface of the quarter of the sphere and record its position parameters.

[0005] Under normal circumstances, workers are required to hold a light source and move it on the outer surface of a quarter sphere, and direct the light from the light source to the lens position of the headlight. While moving the light source, they need to constantly observe whether a focal point appears, and then record the position of the light source. This solution has poor stability during the movement of the light source, which is not conducive to the measurement of the light source position.

[0006] The invention patent with application publication number CN113884284A discloses a test method for simulating sunlight focusing burning, wherein a whole lamp assembly with a lens is placed on a test turntable, a parallel light source emitting parallel light beams is slidably provided on an arc track, and the parallel light source is used to simulate the sun. During the test, the parallel light source points to the lens of the headlight assembly, the angle of the whole lamp assembly is adjusted by the test turntable, and then the position of the parallel light source on the arc track is adjusted, and the above two actions are repeated so that the light source scans the entire mask of the whole lamp assembly; during the above operation, the rotation of the whole lamp assembly easily causes the position of the lens to deviate from the area illuminated by the parallel light source, and the position of the light source cannot be recorded when a focus appears around the lens, which is inconvenient for collecting test data.

[0007] Therefore, how to design a focus point test device that is convenient for collecting test data has become a technical problem that needs to be solved urgently by people in this field. Utility Model Content

[0008] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present utility model is to provide a sunlight focusing point testing device to solve the problem that test data is inconvenient to collect.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A sunlight focusing point testing device comprises a first arc track and a second arc track with the same radius, the centers of the first arc track and the second arc track coincide with each other, the second arc track is slidably connected to the first arc track, a light source is slidably connected to the second arc track, the light of the light source points to the center of the first arc track, the first arc track is provided with plane angle scale lines, the second arc track is provided with vertical surface angle scale lines, and the extension lines of the plane angle scale lines and the vertical surface angle scale lines pass through the center of the first arc track.

[0011] Furthermore, height scale lines are provided on the side walls of the second arc-shaped track.

[0012] Furthermore, the first arc track is in the shape of a half arc, the second arc track is in the shape of a quarter arc, the first arc track is arranged horizontally, and the second arc track is arranged vertically.

[0013] Furthermore, a first sliding groove is provided on the first arc-shaped track, a first sliding block is slidably connected in the first sliding groove, and the first sliding block is fixedly connected to the second arc-shaped track.

[0014] Furthermore, the first slide groove is arc-shaped, the first slider is matched with the first slide groove, the center of the first slide groove coincides with the center of the first arc track, and the side wall of the first slider abuts against the side wall of the first slide groove.

[0015] Furthermore, a positioning hole is provided at the bottom of the second arc-shaped track, a bolt is provided in the positioning hole, and the bolt is threadedly connected to the first sliding block.

[0016] Furthermore, a second sliding groove is provided on the second arc track, a second sliding block is slidably connected in the second sliding groove, and the light source is fixedly mounted on the second sliding block.

[0017] Furthermore, a compensation plate extending to the outside of the second arc track is fixedly provided on the second slider, an extension plate located on one side of the vertical surface angle scale line is fixedly provided on the compensation plate, and a reading groove aligned with the vertical surface angle scale line is provided on the extension plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model places the lamp at the center of the first arc track, supports the light source through the second arc track, and enhances the stability of the light source, thereby improving the accuracy of recording the position of the light source compared with the prior art;

[0019] By utilizing the sliding of the light source on the second arc track and the sliding of the second arc track on the first arc track, the light source can cover the entire light receiving range of the lens of the lamp without changing the position of the lamp;

[0020] When it is necessary to read the position of the light source, the position of the light source can be accurately calculated based on the known radius data of the first arc track and the second arc track and the readings of the plane angle scale lines and the vertical surface angle scale lines, which facilitates data recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the utility model from a first angle;

[0022] Figure 2 This is a second angle schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the utility model;

[0024] Figure 4 is a schematic diagram of the structure of the second arc track;

[0025] Figure 5 is a schematic structural diagram of a second slider;

[0026] Figure 6 Schematic diagram of the installation of the first slider.

[0027] In the figure: 1. first arc track; 11. first slide groove; 12. plane angle scale line; 2. second arc track; 21. vertical angle scale line; 22. height scale line; 23. second slide groove; 24. avoidance groove; 25. positioning hole; 3. first slider; 4. second slider; 41. compensation plate; 5. light source; 6. extension plate; 61. reading groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] This embodiment provides a sunlight focusing point testing device, which is mainly used to record the position of the light source when the vehicle lamp has a focus, so as to facilitate subsequent improvements in the production of the vehicle lamp and improve the quality of the vehicle lamp.

[0030] like Figure 1 and Figure 2As shown, it includes a first arc track 1 and a second arc track 2 with the same radius, wherein the first arc track 1 is placed horizontally, the second arc track 2 is slidably connected to the first arc track 1 through a first slider 3, the second arc track 2 is vertically arranged, and the surface formed by the second arc track 2 is perpendicular to the plane formed by the first arc track 1, as shown in FIG. Figure 4 As shown, a second slider 4 is slidably connected to the second arc track 2 , and a light source 5 is fixedly mounted on the second slider 4 .

[0031] It is worth noting that the first arc track 1 is semicircular, and the second arc track 2 is quarter-circular, wherein the centers of the first arc track 1 and the second arc track 2 coincide with each other. Figure 1 As shown, the coincidence point of the centers of the first arc track 1 and the second arc track 2 is defined as O, and the surface swept by the second arc track 2 sliding on the first arc track 1 is a spherical surface, wherein the light of the light source 5 on the second slider 4 points to point O.

[0032] During the measurement of the lamp, Figure 1 As shown, a spatial coordinate system is established with point O as the origin, and the lamp is placed at point O so that the lens of the lamp coincides with point O, the second arc track 2 is slid to one end of the first arc track 1, the light source 5 on the second slider 4 is turned on, and then the second slider 4 is gradually slid from the bottom of the second arc track 2 to the top of the second arc track 2. During this process, observe whether a focus appears on the lamp. When a light spot focus appears around the lens, the position of the second slider 4 is recorded. During the test, the second arc track 2 is slid to the next position along the first arc track 1, and then the second slider 4 is continued to slide on the second arc track 2, and the light spot on the lamp is continued to be observed. According to the above operation, when the second arc track 2 is moved from one end to the other end of the first arc track 1, the light source 5 on the second arc track 2 completes the scanning of the lamp mask and can record the point position of the light source 5 when a light spot appears.

[0033] In the above process, the light source 5 is fixed by the second slider 4 on the second arc track 2, and the lamp is fixed at the point O. At this time, when the light source 5 is moved by the second slider 4, no matter where the light source 5 is, the light from the light source 5 will still be directed to the lens position of the lamp, thereby solving the problem in traditional tests that the light from the light source 5 deviates from the lens of the lamp due to the movement of the lamp.

[0034] The light source 5 is fixed by using the second curved track 2 and the second slider 4. At this time, the second curved track 2 supports the light source 5, so that the light source 5 can stably scan the spherical surface. When a light spot appears on the lamp, it is only necessary to limit the movement of the second slider 4. Compared with the traditional handheld light source 5, the stability of the position of the light source 5 is improved, and the accuracy of the position reading of the light source 5 can be improved.

[0035] In order to conveniently read the position of the light source 5, in this embodiment, Figure 1 and Figure 3 As shown, the first curved track 1 is provided with a plane angle scale line 12, and the second curved track 2 is provided with a vertical angle scale line 21, wherein the extended lines of the plane angle scale line 12 and the vertical angle scale line 21 intersect at point O, and the second curved track 2 is also provided with a height scale line 22, wherein it is worth noting that the height scale line 22 refers to the distance to the horizontal plane where point O is located.

[0036] like Figure 1 As shown, a spatial coordinate system is defined herein, wherein the three axes are the X-axis, the Y-axis, and the Z-axis, and the position of the second slider 4 at the second arc track 2 is defined as point P. In order to accurately read the position of point P, since the radii of the first arc track 1 and the second arc track 2 are equal and known, when the second arc track 2 is at any position, the plane angle scale 12 can be used to read the angle θ1 between the projection of the second arc track 2 on the horizontal plane and the X-axis, the vertical surface angle scale 21 can be used to read the angle θ2 between the OP line and the horizontal plane, and the height from point P to the horizontal plane can be read according to the height scale 22. The position of point P can be recorded from the above three sets of data.

[0037] In order to realize the installation of the first arc track 1 and the second arc track 2, in this embodiment, as shown in FIG. Figure 3 and Figure 6 As shown, the first arc track 1 is provided with a first slide groove 11 opening upward, the first slider 3 is installed in the first slide groove 11, the side wall of the first slider 3 is slidably connected to the inner wall of the first slide groove 11, and the second arc track 2 is provided with a positioning hole 25, and the bolt passes through the positioning hole 25 to fix the first slider 3 on the second arc track 2.

[0038] In order to realize the installation of the second slider 4, in this embodiment, as shown in FIG. Figure 3 and Figure 6 As shown, a second slide groove 23 is provided on the side of the second arc track 2 facing the point O, and the side wall of the second sliding block 4 is slidably connected to the inner wall of the second slide groove 23 .

[0039] Since the light source 5 is mounted on the second slider 4, in order to further improve the stability of the second slider 4 and the light source 5, in this embodiment, Figure 6 As shown, the second arc track 2 is provided with an avoidance groove 24 connected to the second slide groove 23, wherein the avoidance groove 24 runs through the two side walls of the second arc track 2, and the second slider 4 partially passes through the avoidance groove 24 and extends outward, as shown in FIG. Figure 6 As shown, it also includes a compensation plate 41 fixedly connected to the second slider 4, wherein the compensation plate 41 is located on the side of the second arc track 2 away from point O, and the compensation plate 41 abuts against the side wall of the second arc track 2 to limit the second slider 4 and the light source 5 from falling from the second slide groove 23 under the action of gravity.

[0040] Since the OP line is an imaginary line, in order to facilitate reading of θ2 indicated on the vertical surface angle scale line 21, in this embodiment, Figure 4 and Figure 5 As shown, it also includes an extension plate 6 fixedly mounted on the compensation plate 41 , the extension plate 6 is located on the outer side of the side wall of the second arc track 2 , and a reading groove 61 is provided on the extension plate 6 for aligning with the vertical surface angle scale line 21 .

[0041] Through the above arrangement, when the angle θ2 needs to be read, the reading on the vertical surface angle scale line 21 can be read through the projection of the reading slot 61 on the side wall of the second arc track 2, thereby improving the accuracy of the reading.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A solar focusing point testing device, characterized in that: The invention comprises a first arc track (1) and a second arc track (2) having the same radius, the centers of the first arc track (1) and the second arc track (2) coincide with each other, the second arc track (2) is slidably connected to the first arc track (1), a light source (5) is slidably connected to the second arc track (2), the light of the light source (5) points to the center of the first arc track (1), the first arc track (1) is provided with plane angle scale lines (12), the second arc track (2) is provided with vertical surface angle scale lines (21), and the extension lines of the plane angle scale lines (12) and the vertical surface angle scale lines (21) pass through the center of the first arc track (1).

2. The sunlight focusing point testing device according to claim 1, characterized in that: A height scale line (22) is provided on the side wall of the second arc-shaped track (2).

3. The sunlight focusing point testing device according to claim 1 or 2, characterized in that: The first arc track (1) is in the shape of a half arc, and the second arc track (2) is in the shape of a quarter arc. The first arc track (1) is arranged horizontally, and the second arc track (2) is arranged vertically.

4. The sunlight focusing point testing device according to claim 3, characterized in that: A first sliding groove (11) is provided on the first arc-shaped track (1), a first sliding block (3) is slidably connected in the first sliding groove (11), and the first sliding block (3) is fixedly connected to the second arc-shaped track (2).

5. The sunlight focusing point testing device according to claim 4, characterized in that: The first slide groove (11) is arc-shaped, the first slider (3) is matched with the first slide groove (11), the center of the first slide groove (11) coincides with the center of the first arc track (1), and the side wall of the first slider (3) abuts against the side wall of the first slide groove (11).

6. The sunlight focusing point testing device according to claim 4, characterized in that: A positioning hole (25) is provided at the bottom of the second arc-shaped track (2), a bolt is provided in the positioning hole (25), and the bolt is threadedly connected to the first sliding block (3).

7. The sunlight focusing point testing device according to claim 3, characterized in that: A second sliding groove (23) is provided on the second arc track (2), a second sliding block (4) is slidably connected in the second sliding groove (23), and the light source (5) is fixedly mounted on the second sliding block (4).

8. The sunlight focusing point testing device according to claim 7, characterized in that: A compensation plate (41) extending to the outside of the second arc track (2) is fixedly provided on the second slider (4), an extension plate (6) located on one side of the vertical surface angle scale line (21) is fixedly provided on the compensation plate (41), and a reading groove (61) aligned with the vertical surface angle scale line (21) is provided on the extension plate (6).

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