Four-edge combined annular light source device and visual inspection system

Abstract

The embodiment of the utility model discloses a four-edge combined annular light source device and a visual inspection system, which are used for solving the technical problem of insufficient brightness of the existing light source device. The LED lamp comprises a shell, a window is formed in the shell in the thickness direction of the shell, light-emitting bodies are installed on the four inner side faces of the shell, each light-emitting body is connected with a control line, and the four light-emitting bodies are arranged around the window. In the design, the four control lines respectively and independently control the luminous bodies on each side surface of the shell, so that the instantaneous power of the whole annular light source device is effectively improved, the irradiation brightness of the whole annular light source device is increased, and the imaging quality is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of visual detection, in particular to a four-sided combined annular 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] Most of the light source devices in the prior art include multiple light emitters, but the multiple light emitters are controlled by a common control line, which results in low instantaneous power of the light source device, thereby causing a technical problem of insufficient brightness of the light source device.

[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 embodiment of the utility model discloses a four-side combined annular light source device and a visual detection system, which are used to solve the technical problem of insufficient brightness of the existing light source device.

[0006] The utility model embodiment provides a four-sided ring light source device, including a shell, wherein a window is provided along the thickness direction of the shell, and light-emitting bodies are installed on the four inner sides of the shell, each of the light-emitting bodies is connected to a control line, and the four light-emitting bodies are arranged around the window.

[0007] Optionally, the light emitting body includes a PCB light board and a fixing block;

[0008] The PCB lamp board is fixed on the fixing block, and the fixing block is fixed on the inner side surface of the shell.

[0009] Optionally, a first mounting hole is provided on the PCB lamp board, a first threaded hole is provided at a position of the fixing block corresponding to the first mounting hole, a first fastening screw is passed through the first mounting hole, and the first fastening screw is threadedly connected to the first threaded hole to fix the PCB lamp board on the fixing block.

[0010] Optionally, the fixing block is a heat dissipation fixing block.

[0011] Optionally, each of the PCB light boards is connected to a control line, a wire groove is left between the fixed block and the inner side of the shell, a wire threading hole connected to the wire groove is opened on the shell, and the control line passes through the wire groove and passes through the wire threading hole to go out of the shell.

[0012] Optionally, a solder pad is provided on a surface of the PCB light board away from the fixing block.

[0013] Optionally, the housing includes a fixing seat and a cover plate covering the fixing seat;

[0014] The window passes through the cover plate and the fixing seat.

[0015] Optionally, a second mounting hole is formed on the cover plate, a second threaded hole is formed at a position of the fixing block corresponding to the second mounting hole, a second fastening screw is passed through the second mounting hole, and a screw of the second fastening screw passes through the second mounting hole and is threadedly connected to the second threaded hole to fix the fixing block on the cover plate.

[0016] Optionally, the PCB lamp board is arranged obliquely relative to the inner side surface of the shell.

[0017] 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 four-sided combined annular light source device.

[0018] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0019] The four-side combined annular light source device of this embodiment comprises a shell, a window is provided along the thickness direction of the shell, and light emitters are installed on the four inner sides of the shell, each of the light emitters is connected to a control line, and the four light emitters are arranged around the window. In the above design, the four control lines separately control the light emitters on each side of the shell, effectively improving the instantaneous power of the entire annular light source device, thereby increasing the illumination brightness of the entire annular light source device, which is conducive to improving the imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1A schematic diagram of the structure of a four-sided ring light source device provided in an embodiment of the utility model;

[0022] Figure 2 An exploded view of the structure of a four-sided ring light source device provided in an embodiment of the utility model;

[0023] Figure 3 A partial structural cross-sectional view of a four-sided ring light source device provided in an embodiment of the utility model;

[0024] Illustration: housing 1; fixing seat 101; cover plate 102; light-emitting body 2; PCB lamp board 201; solder pad 2011; first mounting hole 2012; fixing block 202; control line 3; wire groove 4; window 5. DETAILED DESCRIPTION

[0025] The embodiment of the utility model discloses a four-side combined annular light source device and a visual detection system, which are used to solve the technical problem of insufficient brightness of the existing light source device.

[0026] 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.

[0027] See also Figures 1 to 3 The embodiment of the utility model provides a four-sided ring light source device, including a shell 1, wherein the shell 1 has a window 5 along its thickness direction, and light-emitting bodies 2 are installed on the four inner sides of the shell 1, each of the light-emitting bodies 2 is connected to a control line 3, and the four light-emitting bodies 2 are arranged around the window 5.

[0028] It should be noted that the housing 1 in this embodiment is specifically a cubic structure, and the window 5 is opened in the middle of the housing 1 and penetrates the entire housing 1 .

[0029] In the above design, the four control lines 3 separately control the light emitters 2 on each side of the housing 1, effectively improving the instantaneous power of the entire annular light source device, thereby increasing the illumination brightness of the entire annular light source device, which is beneficial to improving imaging quality.

[0030] Furthermore, the light emitting body 2 in this embodiment includes a PCB light board 201 and a fixing block 202;

[0031] The PCB lamp board 201 is fixed on the fixing block 202 , and the fixing block 202 is fixed to the inner side surface of the housing 1 .

[0032] Specifically, a first mounting hole 2012 is provided on the PCB light board 201 in this embodiment, and a first threaded hole is provided at a position of the fixing block 202 corresponding to the first mounting hole 2012. A first fastening screw is passed through the first mounting hole 2012, and the first fastening screw is threadedly connected to the first threaded hole to fix the PCB light board 201 on the fixing block 202.

[0033] It should be noted that, through the above design, the PCB light board 201 can be tightly fixed on the surface of the fixed block 202, which not only fixes the PCB light board 201 but also is beneficial to the heat dissipation of the PCB light board 201, ensuring that the PCB light board 201 can operate at a normal temperature, and effectively extending the service life of the PCB light board 201.

[0034] Furthermore, the fixing block 202 in this embodiment is a heat dissipation fixing block. Specifically, a plurality of heat dissipation teeth are provided on the fixing block 202 in this embodiment to form a heat dissipation fixing block, which plays a role in dissipating the PCB lamp board 201 .

[0035] Furthermore, each of the PCB light boards 201 is connected to a control line 3, a wire groove 4 is left between the fixed block 202 and the inner side surface of the shell 1, and a wire threading hole connected to the wire groove 4 is opened on the shell 1. The control line 3 passes through the wire groove 4 and passes through the wire threading hole to go out of the shell 1.

[0036] It should be noted that, through the above design, the control wires 3 of each PCB light board 201 pass through the wire holes from the wire grooves 4, effectively avoiding the situation of multiple control clutter, ensuring that the entire annular light source device is simple and beautiful while saving installation space.

[0037] Furthermore, a soldering pad 2011 is provided on the surface of the PCB light board 201 away from the fixing block 202 in this embodiment.

[0038] It should be noted that the above design is helpful to improve the convenience of assembly.

[0039] Furthermore, the housing 1 in this embodiment includes a fixing base 101 and a cover plate 102 covering the fixing base 101;

[0040] The window 5 passes through the cover plate 102 and the fixing seat 101 .

[0041] It should be noted that the shell 1 in this embodiment adopts the above-mentioned structure to facilitate the assembly of the light-emitting body 2 and improve the convenience of operation, assembly and maintenance.

[0042] Furthermore, a second mounting hole is formed on the cover plate 102 in this embodiment, a second threaded hole is formed at a position of the fixing block 202 corresponding to the second mounting hole, a second fastening screw is passed through the second mounting hole, and the screw of the second fastening screw passes through the second mounting hole and is threadedly connected to the second threaded hole so that the fixing block 202 is fixed to the cover plate 102.

[0043] It should be noted that the above design can facilitate the installation and disassembly of the fixing block 202, which is beneficial to improving the assembly efficiency.

[0044] Furthermore, the PCB light board 201 in this embodiment is arranged to be inclined relative to the inner side surface of the housing 1 .

[0045] It should be noted that, through the above design, the light emitted by the PCB light board 201 can be better emitted from the window 5.

[0046] See also Figures 1 to 3 A visual inspection system provided by an embodiment of the utility model includes an inspection camera, a lens connected to the inspection camera, and the above-mentioned four-sided combined annular light source device.

[0047] It should be noted that in the above-mentioned four-sided ring light source device, the four control lines 3 separately control the light emitter 2 on each side of the shell 1, effectively improving the instantaneous power of the entire ring light source device, thereby increasing the illumination brightness of the entire ring light source device, which is beneficial to improving the imaging quality.

[0048] The above is a detailed introduction to a four-sided ring light source device and a visual detection system provided by the present invention. For a general technician in this field, according to the idea of ​​the embodiment of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A four-sided ring light source device, characterized in that: The invention comprises a shell (1), wherein the shell (1) has a window (5) formed along the thickness direction thereof, and light-emitting bodies (2) are mounted on four inner side surfaces of the shell (1), each of the light-emitting bodies (2) is connected to a control line (3), and four light-emitting bodies (2) are arranged around the window (5).

2. The four-side combined annular light source device according to claim 1, characterized in that: The light-emitting body (2) comprises a PCB light board (201) and a fixing block (202); The PCB lamp board (201) is fixed on the fixing block (202), and the fixing block (202) is fixed on the inner side surface of the housing (1).

3. The four-side combined annular light source device according to claim 2, characterized in that: The PCB light board (201) is provided with a first mounting hole (2012), the fixing block (202) is provided with a first threaded hole at a position corresponding to the first mounting hole (2012), a first fastening screw is passed through the first mounting hole (2012), and the first fastening screw is threadedly connected to the first threaded hole so that the PCB light board (201) is fixed to the fixing block (202).

4. The four-side combined annular light source device according to claim 2, characterized in that: The fixing block (202) is a heat dissipation fixing block.

5. The four-side combined annular light source device according to claim 2, characterized in that: Each of the PCB light boards (201) is connected to a control line (3); a wire groove (4) is provided between the fixing block (202) and the inner side surface of the housing (1); a wire threading hole connected to the wire groove (4) is provided on the housing (1); the control line (3) passes through the wire groove (4) and passes through the wire threading hole to the outside of the housing (1).

6. The four-side combined annular light source device according to claim 2, characterized in that: A soldering pad (2011) is provided on a surface of the PCB light board (201) away from the fixing block (202).

7. The four-side combined annular light source device according to claim 2, characterized in that: The housing (1) comprises a fixing seat (101) and a cover plate (102) covering the fixing seat (101); The window (5) passes through the cover plate (102) and the fixing seat (101).

8. The four-side combined annular light source device according to claim 7, characterized in that: A second mounting hole is provided on the cover plate (102), a second threaded hole is provided on the fixing block (202) at a position corresponding to the second mounting hole, a second fastening screw is passed through the second mounting hole, and a screw rod of the second fastening screw passes through the second mounting hole and is threadedly connected to the second threaded hole so that the fixing block (202) is fixed to the cover plate (102).

9. The four-side combined annular light source device according to claim 2, characterized in that: The PCB lamp board (201) is arranged obliquely relative to the inner side surface of the housing (1).

10. A visual inspection system, characterized in that: The invention comprises a detection camera, a lens connected to the detection camera and a four-sided combined annular light source device as claimed in any one of claims 1 to 9.

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