Arched light source device and visual inspection system

Abstract

The embodiment of the utility model discloses an arched light source device and a visual inspection system, which are used for solving the technical problem that the detection accuracy is reduced due to incomplete workpiece imaging caused by the fact that light rays emitted by the conventional light source device cannot completely cover the surface of a workpiece. The LED lamp comprises an outer shell, an adjusting assembly, a first light source body and a second light source body. The outer shell comprises a reflection top cover and end plates located at the two opposite ends of the reflection top cover, a window is formed in the middle of the reflection top cover, and the first light source body and the second light source body are movably connected to the end plates through adjusting assemblies. The adjusting assembly is used for adjusting the irradiation angle of the first light source body and the irradiation angle of the second light source body, and the first light source body and the second light source body are symmetrically arranged about the central axis of the reflection top cover.

Description

Technical Field

[0001] The utility model relates to the technical field of visual detection, in particular to an arched light source device and a visual detection system. Background Art

[0002] The inspection of existing workpieces is generally completed through a visual inspection system, which specifically includes a detection camera, a lens, and a light source device. The light source device is used to provide irradiation light to the surface of the workpiece to be tested, and the detection camera is used to obtain the light reflected from the surface to be tested to form an image.

[0003] In the prior art, the light source body in the light source device is fixed and cannot be adjusted. When workpieces of different sizes and types need to be illuminated, the light emitted by this type of light source device cannot completely cover the surface of the workpiece, resulting in incomplete imaging of the workpiece, thereby causing a technical problem of reduced detection accuracy.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Utility Model Content

[0005] The utility model discloses an arched light source device and a visual inspection system, which are used to solve the technical problem that the light emitted by the existing light source device cannot completely cover the surface of the workpiece, resulting in incomplete imaging of the workpiece, thereby causing a decrease in detection accuracy.

[0006] The embodiment of the utility model provides an arched light source device, comprising an outer shell, an adjustment component, a first light source body and a second light source body;

[0007] The outer shell includes a reflective top cover and end plates located at opposite ends of the reflective top cover. A window is opened in the middle of the reflective top cover. The first light source and the second light source are movably connected to the end plates through an adjustment component. The adjustment component is used to adjust the illumination angles of the first light source and the second light source. The first light source and the second light source are symmetrically arranged about the central axis of the reflective top cover.

[0008] Optionally, the reflective top cover is an arc-shaped plate-like structure that arches upward.

[0009] Optionally, the first light source body and the second light source body have the same structure, and both the first light source body and the second light source body include a substrate, a PCB light board and a switching block;

[0010] The PCB lamp board is installed on the base plate, and the adapter block is fixedly connected to the base plate.

[0011] Optionally, the adjustment assembly includes an adjustment screw, an arc-shaped through slot provided on the end plate, and a threaded hole provided on the adapter block;

[0012] The adjusting screw comprises a nut and a screw connected to the nut, the screw passes through the arc-shaped through slot and is threadedly connected to the threaded hole, and the nut abuts against the outer edge of the arc-shaped through slot;

[0013] When the adjusting screw is loosened, the adapter block and the base plate can slide along the arc-shaped through groove through the screw to adjust the rotation angle of the first light source body and the second light source body;

[0014] When the adjusting screw is tightened, the nut presses against the outer edge of the arc-shaped through slot to limit the first light source body and the second light source body from moving along the arc-shaped through slot.

[0015] Optionally, an arched groove is formed on the end plate, and the arched groove and the space between the first light source body and the second light source body are in the same straight line.

[0016] Optionally, the substrate is a heat dissipation substrate.

[0017] Optionally, a first diffusion plate is disposed on one side of the illumination end of the first light source body, and a second diffusion plate is disposed on one side of the illumination end of the second light source body.

[0018] Optionally, one of the end plates is provided with a wire threading hole, a wire is passed through the wire threading hole, and the wire is electrically connected to the PCB lamp board.

[0019] An embodiment of the utility model provides a visual inspection system, comprising an inspection camera, a lens connected to the inspection camera, and the above-mentioned arched light source device.

[0020] Optionally, the detection camera and the lens are located above a window in the arched light source device.

[0021] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0022] The arched light source device of this embodiment has a first light source and a second light source that are symmetrically arranged. The two light sources can emit light to the workpiece on opposite sides of the workpiece so that the light can cover the surface of the workpiece. In addition, the first light source and the second light source can change the irradiation angle by adjusting the components. When detecting workpieces of different sizes and types, the light can completely cover the surface of the workpiece by changing the irradiation angle of the first light source and the second light source, thereby ensuring the integrity of the imaging, achieving a better imaging effect and helping to improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of an arched light source device provided by an embodiment of the utility model;

[0025] Figure 2 An exploded view of the structure of an arched light source device provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of an arched light source device provided by an embodiment of the utility model from another angle;

[0027] Illustration: reflective top cover 1; window 2; end plate 3; first light source body 4; second light source body 5; base plate 6; PCB light board 7; adapter block 8; first diffuser plate 9; second diffuser plate 10; threaded hole 11; arc-shaped through groove 12; threading hole 13; wire 14; arched groove 15. DETAILED DESCRIPTION

[0028] The utility model discloses an arched light source device and a visual inspection system, which are used to solve the technical problem that the light emitted by the existing light source device cannot completely cover the surface of the workpiece, resulting in incomplete imaging of the workpiece, thereby causing a decrease in detection accuracy.

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] Please refer to Figures 1 to 3 , an arched light source device provided by an embodiment of the utility model comprises an outer shell, an adjustment component, a first light source body 4 and a second light source body 5;

[0031] The outer shell includes a reflective top cover 1 and end plates 3 located at opposite ends of the reflective top cover 1. A window 2 is opened in the middle of the reflective top cover 1. The first light source 4 and the second light source 5 are movably connected to the end plate 3 through an adjustment component. The adjustment component is used to adjust the illumination angles of the first light source 4 and the second light source 5. The first light source 4 and the second light source 5 are symmetrically arranged about the central axis of the reflective top cover 1.

[0032] It should be noted that the reflective top cover 1 in this embodiment effectively prevents the light emitted by the first light source 4 and the second light source 5 from irradiating the outside of the outer shell, which is conducive to allowing the light to irradiate the surface of the workpiece as completely as possible.

[0033] The arched light source device of the present embodiment has a symmetrically arranged first light source 4 and a second light source 5. The two light sources can emit light to the workpiece on opposite sides of the workpiece so that the light can cover the surface of the workpiece. In addition, the first light source 4 and the second light source 5 can change the irradiation angle by adjusting the components. When detecting workpieces of different sizes and types, the light can completely cover the surface of the workpiece by changing the irradiation angle of the first light source 4 and the second light source 5, thereby ensuring the integrity of the imaging, achieving a better imaging effect and helping to improve the detection accuracy.

[0034] Specifically, the reflective top cover 1 in this embodiment is an arc-shaped plate-like structure that arches upward.

[0035] Furthermore, the first light source body 4 and the second light source body 5 in this embodiment have the same structure, and both the first light source body 4 and the second light source body 5 include a substrate 6, a PCB light board 7 and a transfer block 8;

[0036] The PCB lamp board 7 is installed on the base plate 6 , and the adapter block 8 is fixedly connected to the base plate 6 .

[0037] It should be noted that the above-mentioned substrate 6 specifically provides support and fixation for the PCB light board 7, and the PCB light board 7 is used to emit irradiation light.

[0038] Furthermore, the adjustment assembly in this embodiment includes an adjustment screw, an arc-shaped through slot 12 provided on the end plate 3 and a threaded hole 11 provided on the adapter block 8;

[0039] The adjusting screw includes a nut and a screw connected to the nut, the screw passes through the arc-shaped through slot 12 and is threadedly connected to the threaded hole 11, and the nut abuts against the outer edge of the arc-shaped through slot 12;

[0040] It should be noted that the specific working principle of the adjustment component in this embodiment is:

[0041] When the adjusting screw is loosened, the adapter block 8 and the base plate 6 can slide along the arc-shaped through groove 12 through the screw to adjust the rotation angle of the first light source body 4 and the second light source body 5;

[0042] When the adjusting screw is tightened, the nut presses against the outer edge of the arc-shaped through slot 12 to limit the first light source 4 and the second light source 5 from moving along the arc-shaped through slot 12 .

[0043] Furthermore, an arched groove 15 is provided on the end plate 3 in this embodiment, and the arched groove 15 and the space between the first light source body 4 and the second light source body 5 are on the same straight line.

[0044] It should be noted that the design of the arched groove 15 can facilitate the passage of the workpiece, so that the workpiece can avoid interference with the end plate 3 when entering the space between the first light source body 4 and the second light source body 5 .

[0045] Furthermore, in order to ensure the heat dissipation effect of the first light source 4 and the second light source 5 , the substrate 6 in this embodiment is a heat dissipation substrate.

[0046] Through the above design, the heat dissipation effect of the first light source 4 and the second light source 5 can be improved, so that the first light source 4 and the second light source 5 can work at a suitable temperature, which is beneficial to extending the service life of the first light source 4 and the second light source 5.

[0047] Furthermore, a first diffusion plate 9 is disposed on one side of the irradiation end of the first light source body 4 in the present embodiment, and a second diffusion plate 10 is disposed on one side of the irradiation end of the second light source body 5 in the present embodiment.

[0048] It should be noted that, through the above design, the first diffuser plate 9 can make the first light source 4 illuminate more evenly, and the second diffuser plate 10 can make the second light source 5 illuminate more evenly, which is beneficial to improving the imaging effect.

[0049] Furthermore, one of the end plates 3 is provided with a threading hole 13 , a wire 14 is passed through the threading hole 13 , and the wire 14 is electrically connected to the PCB light board 7 .

[0050] It should be noted that, through the above design, the wires 14 pass through the wire holes 13 , which can avoid the wires 14 being cluttered, and ensure that the arched light source device is simple and beautiful.

[0051] See also Figures 1 to 3 An embodiment of the utility model provides a visual inspection system, including an inspection camera, a lens connected to the inspection camera, and the above-mentioned arched light source device.

[0052] Furthermore, the detection camera and the lens are located above the window 2 in the arched light source device.

[0053] It should be noted that during the detection work, the first light source 4 and the second light source 5 emit light to illuminate the surface of the workpiece, and the light reflected from the workpiece surface is emitted from the window 2 of the reflective top cover 1, and then enters the lens and the detection camera in turn, thereby completing the imaging.

[0054] The above is a detailed introduction to an arched light source device and a visual detection system provided by the utility model. For a person skilled in the art, according to the idea of ​​the embodiments of the utility model, there may be changes in the specific implementation method and the scope of application. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. An arched light source device, characterized in that: It comprises an outer shell, an adjustment component, a first light source (4) and a second light source (5); The outer shell comprises a reflective top cover (1) and end plates (3) located at opposite ends of the reflective top cover (1); a window (2) is provided in the middle of the reflective top cover (1); the first light source (4) and the second light source (5) are both movably connected to the end plates (3) via an adjustment component; the adjustment component is used to adjust the illumination angles of the first light source (4) and the second light source (5); the first light source (4) and the second light source (5) are symmetrically arranged about the central axis of the reflective top cover (1).

2. The arch light source device according to claim 1, characterized in that: The reflective top cover (1) is an arc-shaped plate-like structure that arches upward.

3. The arch light source device according to claim 1, characterized in that: The first light source (4) and the second light source (5) have the same structure, and both the first light source (4) and the second light source (5) comprise a substrate (6), a PCB light board (7) and a transfer block (8); The PCB lamp board (7) is mounted on the base plate (6), and the adapter block (8) is fixedly connected to the base plate (6).

4. The arch light source device according to claim 3, characterized in that: The adjustment assembly comprises an adjustment screw, an arc-shaped through slot (12) provided on the end plate (3), and a threaded hole (11) provided on the adapter block (8); The adjusting screw comprises a nut and a screw connected to the nut, the screw passing through the arc-shaped through slot (12) and being threadedly connected to the threaded hole (11), and the nut abuts against the outer edge of the arc-shaped through slot (12); When the adjusting screw is loosened, the adapter block (8) and the base plate (6) can slide along the arc-shaped through groove (12) via the screw rod to adjust the rotation angle of the first light source (4) and the second light source (5); When the adjusting screw is tightened, the nut presses against the outer edge of the arc-shaped through slot (12) to limit the movement of the first light source (4) and the second light source (5) along the arc-shaped through slot (12).

5. The arch light source device according to claim 1, characterized in that: The end plate (3) is provided with an arched groove (15), and the arched groove (15) and the space between the first light source body (4) and the second light source body (5) are located on the same straight line.

6. The arch light source device according to claim 3, characterized in that: The substrate (6) is a heat dissipation substrate.

7. The arch light source device according to claim 3, characterized in that: A first diffusion plate (9) is provided on one side of the irradiation end of the first light source body (4), and a second diffusion plate (10) is provided on one side of the irradiation end of the second light source body (5).

8. The arch light source device according to claim 3, characterized in that: One of the end plates (3) is provided with a wire threading hole (13), a wire (14) is passed through the wire threading hole (13), and the wire (14) is electrically connected to the PCB light board (7).

9. A visual inspection system, characterized in that: The invention comprises a detection camera, a lens connected to the detection camera, and the arch light source device according to any one of claims 1 to 8.

10. The visual inspection system according to claim 9, characterized in that: The detection camera and the lens are located above the window (2) in the arched light source device.

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