Machine vision work with round pie light source

Abstract

This utility model discloses a disc-shaped light source for machine vision operations, relating to the field of machine vision technology. The disc-shaped light source includes a housing, a diffuser plate fixedly mounted at the bottom of the housing, a main lamp plate fixedly mounted inside the housing, a heat-conducting plate fixedly connected to the upper surface of the main lamp plate, and heat dissipation fins fixedly connected to the upper surface of the heat-conducting plate. A central hole is provided in the middle of the housing, and two pressure plates are arranged inside the central hole. Rubber pads are fixedly connected to the outer surfaces of the two pressure plates facing each other. Guide rods and springs are fixedly connected to the outer surfaces of the two pressure plates away from the rubber pads. A fixing ring is fixedly connected to the upper surface of the housing, and a fan is arranged inside the fixing ring, positioned above a through hole at the top of the housing. This utility model enables rapid and stable installation of the light source and provides efficient and convenient heat dissipation and maintenance functions.

Description

Technical Field

[0001] This utility model relates to the field of machine vision operation technology, specifically to a disc-shaped light source for machine vision operations. Background Technology

[0002] Machine vision refers to automated tasks that utilize computer and image processing technologies to simulate human visual functions. It involves acquiring image or video data through devices such as cameras and sensors, and then using algorithms for analysis, recognition, and decision-making. Its core objective is to extract useful features from visual information to achieve intelligent understanding of objects, scenes, or behaviors. Machine vision is widely used in industrial inspection, quality control, autonomous driving, medical image analysis, and security monitoring. For example, in manufacturing, it can detect product defects; in agriculture, it can identify crop diseases and pests; and in retail, it can enable unmanned checkout. This technology relies on algorithms such as deep learning, pattern recognition, and image processing, which can significantly improve production efficiency, reduce human error, and lower costs.

[0003] According to patent number CN202120864781.4, a time-programmable multi-zone multispectral machine vision programmable light source relates to the field of vision light sources. It includes an annular housing with a central hole, a control board, an annular lamp board and a diffuser board electrically and signal-connected to the control board. The control board and the annular lamp board are both installed inside the housing. The diffuser board is installed on the light-emitting side of the annular lamp board and fixed to the housing. The annular lamp board has at least four independent LED light-emitting areas, and each LED light-emitting area has a plurality of LED beads of different colors evenly arranged on it. The control board includes a light-emitting time adjustment module for adjusting the light-emitting time of the LED beads, a brightness adjustment module for adjusting the brightness of the LED beads, and a communication module for transmitting the light-emitting information of the LED beads to the outside. This utility model solves the technical problem in the prior art where a single light source cannot meet the complex lighting requirements of products.

[0004] The heat dissipation efficiency of the light source in the aforementioned patent is limited, which affects the lifespan of the light source and results in poor durability. In addition, although its annular structure has a central hole, it lacks an effective mounting and fixing structure, making it difficult to install conveniently on cameras or other detection equipment in actual use, which is quite inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a disc-shaped light source for machine vision operations, thereby solving the problems mentioned in the background art, such as poor heat dissipation performance affecting service life and lack of effective installation and fixing structure leading to inconvenience in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a disc-shaped light source for machine vision operations, comprising a housing, a diffuser plate fixedly installed at the bottom of the housing, a main lamp plate fixedly installed in the inner cavity of the housing, a heat-conducting plate fixedly connected to the upper surface of the main lamp plate, heat dissipation fins fixedly connected to the upper surface of the heat-conducting plate, a central hole provided in the middle of the housing, two pressure plates provided inside the central hole, rubber pads fixedly connected to the opposite outer surfaces of the two pressure plates, guide rods and springs fixedly connected to the outer surfaces of the two pressure plates away from the rubber pads, a fixing ring fixedly connected to the upper surface of the housing, a fan provided inside the fixing ring, and the fan positioned above the through hole at the top of the housing.

[0007] Preferably, the main light panel includes multiple light-emitting areas, and multiple LED beads are fixedly connected to the lower surface of the multiple light-emitting areas. The diffuser plate is disposed directly below the LED beads.

[0008] Preferably, the outer surface of the heat dissipation fins extends through the top of the housing, a fixing plate is fixedly connected to the upper surface of the housing, and the outer surface of the guide rod is sleeved inside the fixing plate.

[0009] Preferably, the end of the spring away from the pressure plate is fixedly connected to the inner wall of the central hole, and the two pressure plates are symmetrically arranged inside the central hole.

[0010] Preferably, the upper surface of the fixing ring has two positioning holes, and the inside of the fixing ring has two limiting grooves, which are respectively located below the two positioning holes.

[0011] Preferably, a filter screen is fixedly connected to the top of the fan, a limiting ring is fixedly connected to the outer surface of the fan, two bent magnetic plates are fixedly connected to the lower surface of the limiting ring, the bottom plate of the bent magnetic plate is adapted to the inner cavity of the limiting groove, and a lower magnetic plate is fixedly connected to the bottom of the inner cavity of the limiting groove. Beneficial effects

[0012] This invention provides a disc-shaped light source for machine vision operations. It has the following beneficial effects:

[0013] 1. This disc-shaped light source for machine vision operation uses an elastic clamping mechanism consisting of a pressure plate, guide rod, and spring. With the rubber pad inside the central hole, it achieves adaptive clamping and fixation for detection devices of different diameters. The spring provides a continuous and stable clamping force, the guide rod moves smoothly within the fixed plate to ensure uniform distribution of clamping force, and the rubber pad increases frictional resistance to prevent the device from sliding. This effectively solves the problem of inconvenient installation of existing light sources and significantly improves the imaging stability and detection accuracy of the machine vision system.

[0014] 2. The disc-shaped light source used in this machine vision operation significantly improves heat dissipation efficiency by adopting a modular heat dissipation system consisting of heat dissipation fins, heat conduction plates, and magnetic fans. The fan can be quickly disassembled and installed by magnetic connection between the bent magnetic plate and the lower magnetic plate, which is convenient for cleaning or replacement and extends the service life of the light source. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a second-view structural diagram of the entire utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the main light panel of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the fixing ring and the fan of this utility model.

[0020] In the diagram: 1. Outer shell; 2. Diffuser plate; 3. Main lamp board; 301. Light-emitting area; 302. Lamp bead; 4. Heat-conducting plate; 5. Heat dissipation fins; 6. Center hole; 7. Fixing plate; 8. Guide rod; 9. Pressure plate; 10. Rubber pad; 11. Spring; 12. Fixing ring; 13. Positioning hole; 14. Limiting groove; 15. Lower magnetic plate; 16. Fan; 17. Filter screen; 18. Limiting ring; 19. Bending magnetic plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-5As shown, this utility model provides a disc-shaped light source for machine vision operations, including a housing 1. A diffuser plate 2 is fixedly installed at the bottom of the housing 1. A main lamp plate 3 is fixedly installed in the inner cavity of the housing 1. A heat-conducting plate 4 is fixedly connected to the upper surface of the main lamp plate 3. A heat dissipation fin 5 is fixedly connected to the upper surface of the heat-conducting plate 4. A central hole 6 is provided in the middle of the housing 1. Two pressure plates 9 are provided inside the central hole 6. Rubber pads 10 are fixedly connected to the outer surfaces of the two pressure plates 9 facing each other. Guide rods 8 and springs 11 are fixedly connected to the outer surfaces of the two pressure plates 9 on the side away from the rubber pads 10. A fixing ring 12 is fixedly connected to the upper surface of the housing 1. A fan 16 is provided inside the fixing ring 12. The fan 16 is located above the through hole at the top of the housing 1.

[0023] Specifically, the main light panel 3 includes multiple light-emitting areas 301, and multiple LED beads 302 are fixedly connected to the lower surface of the multiple light-emitting areas 301. The diffuser plate 2 is located directly below the LED beads 302. The main light panel 3 can realize independent control of lighting in multiple zones. Each light-emitting area 301 can be set with different spectral combinations and light emission sequences. The light emitted by the LED beads 302 forms a shadowless lighting effect after being uniformly diffused by the diffuser plate 2, effectively eliminating the reflection and shadow interference on the surface of the object being measured.

[0024] Specifically, the outer surface of the heat dissipation fin 5 extends through the top of the outer shell 1, and a fixing plate 7 is fixedly connected to the upper surface of the outer shell 1. The outer surface of the guide rod 8 is sleeved inside the fixing plate 7. The fixing plate 7 provides precise sliding guidance for the guide rod 8, ensuring that the guide rod 8 remains stable during movement and preventing the pressure plate 9 from shifting during clamping.

[0025] Specifically, the end of the spring 11 away from the pressure plate 9 is fixedly connected to the inner wall of the central hole 6. The two pressure plates 9 are symmetrically arranged inside the central hole 6. The symmetrically arranged elastic clamping mechanism provides a continuous and stable clamping force through the spring 11, so that the two pressure plates 9 can adapt to detection equipment of different diameters. The rubber pad 10 increases the frictional resistance to prevent slippage and ensures that the light source remains stable during operation.

[0026] Specifically, the upper surface of the fixing ring 12 has two positioning holes 13, and the inside of the fixing ring 12 has two limiting grooves 14. The two limiting grooves 14 are respectively located below the two positioning holes 13. The positioning holes 13 provide an initial positioning reference for the installation of the fan 16.

[0027] Specifically, a filter 17 is fixedly connected to the top of the fan 16, a limiting ring 18 is fixedly connected to the outer surface of the fan 16, and two bent magnetic plates 19 are fixedly connected to the lower surface of the limiting ring 18. The bottom plate of the bent magnetic plate 19 is adapted to the inner cavity of the limiting groove 14, and a lower magnetic plate 15 is fixedly connected to the bottom of the inner cavity of the limiting groove 14. The filter 17 effectively blocks dust from entering the light source. The limiting ring 18 and the bent magnetic plate 19 form a complete installation and positioning structure. Quick disassembly and assembly are achieved through the magnetic attraction between the bent magnetic plate 19 and the lower magnetic plate 15, which is convenient for replacement or maintenance.

[0028] The working principle of the above embodiments:

[0029] In use, the equipment is first installed by inserting the visual inspection device into the central hole 6 in the middle of the housing 1. The two symmetrically arranged pressure plates 9 are automatically clamped to the outer wall of the device by the rubber pads 10 under the push of the spring 11. The guide rod 8 moves smoothly along the guide groove inside the fixing plate 7 to ensure that the clamping force is evenly distributed. Then, the lighting system is started. Multiple light-emitting areas 301 distributed on the main lamp plate 3 are activated in sequence according to the preset program. The lamp beads 302 below each light-emitting area 301 emit light of a specific spectrum according to the detection requirements. The light is evenly diffused by the diffuser plate 2 to form shadowless lighting. Then, the heat dissipation system starts to work. The heat generated by the lamp beads 302 is conducted to the heat dissipation fins 5 through the heat conduction plate 4. At the same time, the fan 16 in the fixing ring 12 starts to generate forced convection. The airflow passes through the gap of the heat dissipation fins 5 and carries away the heat. The filter 17 effectively blocks dust from entering. Finally, when maintenance is required, quick disassembly is achieved through the magnetic structure. The fan 16 can be removed for cleaning or replacement by separating the bent magnetic plate 19 at the bottom of the limiting ring 18 from the lower magnetic plate 15 in the limiting groove 14.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disc-shaped light source for machine vision operations, comprising a housing (1), characterized in that: A diffuser plate (2) is fixedly installed at the bottom of the outer shell (1). A main lamp plate (3) is fixedly installed in the inner cavity of the outer shell (1). A heat-conducting plate (4) is fixedly connected to the upper surface of the main lamp plate (3). A heat dissipation fin (5) is fixedly connected to the upper surface of the heat-conducting plate (4). A central hole (6) is provided in the middle of the outer shell (1). Two pressure plates (9) are provided inside the central hole (6). A rubber pad (10) is fixedly connected to the outer surface of the two pressure plates (9) facing each other. A guide rod (8) and a spring (11) are fixedly connected to the outer surface of the two pressure plates (9) on the side away from the rubber pad (10). A fixing ring (12) is fixedly connected to the upper surface of the outer shell (1). A fan (16) is provided inside the fixing ring (12). The fan (16) is located above the through hole at the top of the outer shell (1).

2. The disc-shaped light source for machine vision operations according to claim 1, characterized in that: The main light panel (3) includes multiple light-emitting areas (301), and multiple LED beads (302) are fixedly connected to the lower surface of the multiple light-emitting areas (301). The diffuser plate (2) is located directly below the LED beads (302).

3. The disc-shaped light source for machine vision operations according to claim 1, characterized in that: The outer surface of the heat dissipation fin (5) penetrates the top of the outer shell (1), and a fixing plate (7) is fixedly connected to the upper surface of the outer shell (1). The outer surface of the guide rod (8) is sleeved inside the fixing plate (7).

4. The disc-shaped light source for machine vision operations according to claim 1, characterized in that: The end of the spring (11) away from the pressure plate (9) is fixedly connected to the inner wall of the central hole (6), and the two pressure plates (9) are symmetrically arranged inside the central hole (6).

5. The disc-shaped light source for machine vision operations according to claim 1, characterized in that: The upper surface of the fixing ring (12) has two positioning holes (13), and the inside of the fixing ring (12) has two limiting grooves (14), which are respectively located below the two positioning holes (13).

6. The disc-shaped light source for machine vision operations according to claim 5, characterized in that: A filter screen (17) is fixedly connected to the top of the fan (16). A limiting ring (18) is fixedly connected to the outer surface of the fan (16). Two bent magnetic plates (19) are fixedly connected to the lower surface of the limiting ring (18). The bottom plate of the bent magnetic plate (19) is adapted to the inner cavity of the limiting groove (14). A lower magnetic plate (15) is fixedly connected to the bottom of the inner cavity of the limiting groove (14).

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