Programmable 2.5D line scanning coaxial programmable light source

Abstract

The utility model discloses a kind of 2.5D line sweep coaxial program-controlled light source, comprising: light source shell, the installation space is formed inside the light source shell, and the detection port and the light outlet of oppositely arranged are set on the light source shell;Between the detection port and the light outlet, there is a beam splitter, the beam splitter is obliquely inserted in the inside of the light source shell;The lower side of the beam splitter is sequentially provided with transparent plate, diffusion film, diffusion plate and LED lamp plate from top to bottom;Control surface circuit board fixed in the installation space and the driving circuit board connected with control surface circuit board, the driving circuit board is connected with the LED lamp plate.The utility model realizes the combination of 2.5D program-controlled line sweep light source and coaxial light source, can effectively improve the quality of light source detection and meet the detection needs of different products and scenes.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a programmable 2.5D line scan coaxial programmable light source. Background Technology

[0002] Currently, traditional 2.5D programmable line scan light sources only have surface light sources. They achieve line scanning by controlling a matrix of LED beads on a light panel, which are then controlled by a program. After scanning the object's surface, the standard dimensions and color of the product are obtained. This information is then compared to surface data in a computer database to detect defects. Compared to human inspection, this method is faster and has a lower error rate.

[0003] However, the current 2.5D programmable line scan light source is not functional enough to meet the needs of more object detection. In addition, the internal structure of the current line scan light source is a whole, which is difficult to disassemble, inconvenient to install the circuit board, and not conducive to the expansion of the light source function. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a programmable 2.5D line scan coaxial light source. This invention combines a 2.5D programmable line scan light source with a coaxial light source, which can effectively improve the detection quality of the light source and meet the detection needs of different products and scenarios.

[0005] To achieve the above objectives, this utility model provides a programmable 2.5D line-scan coaxial programmable light source, comprising:

[0006] A light source housing, the interior of which forms an installation space, and a detection port and a light output port are provided on the upper part of the light source housing;

[0007] A beam splitter is provided between the detection port and the light output port, and the beam splitter is obliquely inserted into the interior of the light source housing;

[0008] Below the beam splitter, from top to bottom, are arranged a transparent plate, a diffusion film, a diffuser plate, and an LED light panel.

[0009] A control surface circuit board and a drive circuit board connected to the control surface circuit board are fixed in the installation space, and the drive circuit board is connected to the LED light board.

[0010] Furthermore, the light source housing includes a front panel, two side panels, a bottom panel, a top panel, and a back panel that are spliced ​​together. The detection port is located on the upper side of the front panel, and the length of the back panel is shorter than that of the two side panels. The front panel, side panels, bottom panel, top panel, and back panel adopt a spliced ​​structure, which facilitates assembly, disassembly, and maintenance, while reducing manufacturing and transportation costs.

[0011] Furthermore, the two side plates are provided with first mounting slots at a 45° angle, and the front plate and top plate are each provided with a second mounting slot. The two sides of the beam splitter are inserted into the first mounting slots, and the upper and lower ends of the beam splitter abut against the second mounting slots respectively. This directly limits the 45° incident angle of the beam splitter, ensuring that light is reflected or transmitted along the designed path, avoiding errors from manual angle adjustments, and improving the consistency of the optical system. The second mounting slots prevent the lens from deflecting during vibration or movement, maintaining the stability of the optical path.

[0012] Furthermore, a third mounting slot is provided inside the light source housing, positioned below the beam splitter. The transparent plate, diffusion film, and diffuser plate are tightly inserted into this third mounting slot. The third mounting slot allows the transparent plate (for protection / dust prevention), diffusion film (for light diffusion), and diffuser plate (for uniform light distribution) to be integrated in a tightly stacked manner below the beam splitter, forming a modular optical unit that facilitates modular replacement. The plug-in installation eliminates the need to disassemble the entire light source housing; individual components can be extracted (e.g., replacing diffuser plates with different levels of haze) to adapt to different detection scenarios.

[0013] Furthermore, it also includes a heat sink, with the LED light panel fixed to one end of the heat sink. The two side plates are provided with fourth mounting slots, and heat dissipation hook edges are provided on both sides of the heat sink, inserting into the fourth mounting slots. Several heat dissipation fins are provided at the other end of the heat sink. The LED light panel is directly fixed to one end of the heat sink, while the heat dissipation fins at the other end of the heat sink significantly increase the heat dissipation area, forming an integrated "heat source-heat conduction-heat dissipation" module.

[0014] Furthermore, heat dissipation holes are provided on both side plates, and the positions of the heat dissipation holes correspond to the positions of the LED light panel. The heat dissipation holes are located directly opposite the LED light panel, forming the shortest heat dissipation path, allowing the heat generated by the light panel to be quickly discharged from the housing through air convection, avoiding heat accumulation.

[0015] Furthermore, one of the two side plates is provided with heat dissipation holes, and the other side plate is provided with a cooling fan. The cooling fan actively draws in / blown air, and the other side has heat dissipation holes, which quickly dissipate the heat from the LED light panel, improving the heat dissipation efficiency by 3 to 5 times compared to pure natural convection.

[0016] Furthermore, the system includes several pillars, each with its two ends connected to the four corners of the control board and the drive board, thus keeping them apart. The pillars physically separate the control board and the drive board, preventing mutual interference while creating space for wiring and heat dissipation, thereby improving overall space utilization.

[0017] Furthermore, the control circuit board is also connected to a communication serial port and a power supply aviation connector, which are fixed to the side panel. The power supply uses an industrial-grade aviation connector (such as an M12-5 pin), secured by threaded locking or clips, providing more than 10 times the vibration resistance of ordinary DC sockets, thus preventing power outages caused by production line vibrations. The serial port (such as RS-485) is directly integrated into the side panel metal housing, utilizing the housing's grounding to shield against electromagnetic interference, ensuring stable long-distance communication.

[0018] Furthermore, an intensifying lens is provided on the detection port. This improves the uniformity of illumination at the detection port, thereby ensuring the accuracy of the detection camera.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention adds a coaxial light source structure to the existing programmable line scan light source, enabling it to perform line scan operations on the object under test by controlling the horizontal and vertical arrangement of LED beads on the LED board through a program or computer communication, just like a 2.5D programmable line scan light source. This fills the gap in the industry for coaxial 2.5D line scan applications. At the same time, the control board of this light source adopts a modular design, which does not require redesigning the control board of different sizes, but only changing the quantity, greatly reducing the time and structural space of the board design. The light source adopts a side air cooling and internal heat dissipation tooth design. The heat dissipation tooth heat dissipation increases the power of the light source and the life of the LED beads, while also reducing the size and weight of the light source. Attached Figure Description

[0021] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a programmable 2.5D line scan coaxial programmable light source according to this utility model;

[0023] Figure 2 This is an exploded view of a programmable 2.5D line scan coaxial programmable light source according to this utility model;

[0024] Figure 3 yes Figure 1 A cross-sectional view along line AA;

[0025] Figure 4 This is a structural schematic diagram of the side plate of this utility model;

[0026] Figure 5This is a schematic diagram of the structure of the concealed back panel of this utility model.

[0027] The diagram includes:

[0028] 1. Light source housing; 11. Detection port; 12. Light outlet; 13. Front panel; 131. Second mounting slot; 14. Side panel; 141. First step; 142. Second step; 143. First mounting slot; 144. Fourth mounting slot; 15. Base plate; 16. Top plate; 17. Back plate; 18. Third mounting slot; 19. Heat dissipation through hole; 2. Transparent plate; 3. Diffuser film; 4. Diffuser plate; 5. LED light board; 51. Heat sink; 511. Heat dissipation fins; 512. Heat dissipation mounting edge; 6. Control circuit board; 61. Column; 62. Communication serial port; 63. Power supply aviation head; 7. Driver circuit board; 8. Beam splitter; 9. Intensifying lens; 10. Cooling fan. Detailed Implementation

[0029] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0032] Please see Figures 1 to 5 This utility model provides a programmable 2.5D line-scan coaxial light source, including a light source housing 1, a beam splitter 8, a transparent plate 2, a diffusion film 3, a diffuser plate 4, an LED light board 5, a control circuit board 6, and a drive circuit board 7 connected to the control circuit board 6.

[0033] like Figure 1 and Figure 2As shown, the interior of the light source housing 1 forms an installation space. A detection port 11 and a light outlet 12 are arranged opposite each other on the surface of the light source housing 1. An intensifying lens 9 is installed on the detection port 11. Specifically, the light source housing 1 includes a front plate 13, two side plates 14, a bottom plate 15, a top plate 16, and a back plate 17 that are spliced ​​together. The detection port 11 is located on the upper side of the front plate 13. The two side plates 14 are arranged opposite each other. The front plate 13 and the back plate 17 are respectively located at the front and rear ends of the side plates 14. The top plate 16 and the bottom plate 15 are spliced ​​to the upper and lower ends of the side plates 14. These components can be locked together using screws or other connecting parts. Notably, the length of the back plate 17 is less than that of the side plates 14. Figure 4 As shown, a recessed first step portion 141 is formed on the lower rear side of the two side plates 14. The back plate 17 is directly installed on the first step portion 141, so that the upper part of the back plate 17 forms the light outlet 12. A recessed second step portion 142 is also formed on the inner side of the upper end of the two side plates 14. The bottom plate 15 is installed on the second step portion 142. Thus, the back plate 17 and the top plate 16 are combined with the edges of the two side plates 14 to form a flat outer surface, which can improve the overall aesthetics and avoid unnecessary collisions.

[0034] In this embodiment, the beam splitter 8 is inserted into the interior of the light source housing 1 at a 45° angle, and as shown... Figure 2 As shown, the beam splitter 8 is positioned between the detection port 11 and the light output port 12. Specifically, a transparent plate 2, a diffusion film 3, a diffuser plate 4, and an LED light plate 5 are arranged sequentially from top to bottom below the beam splitter 8. The diffusion film 3 is an R85 ​​diffusion film. A first mounting groove 143 with a 45° inclination is provided on the inner side of the two side plates 14. A second mounting groove 131 is provided on both the front plate 13 and the top plate 16. The two sides of the beam splitter 8 are inserted into the first mounting groove 143, and the upper and lower ends of the beam splitter 8 abut against the second mounting groove 131 respectively. The setting of the second mounting groove 131 can prevent the lens from deflecting during vibration or movement and maintain the stability of the optical path.

[0035] In this embodiment, the transparent plate 2, diffusion film 3, and diffuser plate 4 are stacked sequentially from top to bottom below the beam splitter 8. These three components are arranged in order and can be added or removed according to different environmental requirements. To achieve this modular replacement method, this embodiment adopts a plug-in installation method. Therefore, a third mounting groove 18 is provided inside the light source housing 1, and the third mounting groove 18 is located below the beam splitter 8. Thus, the light source housing 1 in this embodiment is assembled from a front plate 13, two side plates 14, a bottom plate 15, a top plate 16, and a back plate 17. To facilitate the insertion of the aforementioned optical plates, the third mounting groove 18 needs to be installed on the two side plates 14, the front plate 13, and the back plate 17 to form a ring-shaped, interconnected groove. In this way, the transparent plate 2, the diffusion film 3, and the diffuser plate 4 are tightly inserted into the third mounting groove 18, which can support and limit the four sides of the aforementioned optical plates. Therefore, when replacement is needed, only one plate (which can be the front plate 13, the two side plates 14, or the back plate 17) needs to be removed to take out the optical plate that needs to be removed or to add a new light source plate.

[0036] The LED light board 5 is located directly below the aforementioned optical material. In this embodiment, the LED light board 5 is a surface light source board with several horizontally and vertically arranged LED beads, and is connected to the driving circuit board 7, which controls the operation of the LED beads. The LED light board 5 in this embodiment generates a large amount of heat, so a heat dissipation device is required to cooperate with it. In this embodiment, a heat sink 51 made of aluminum or other materials with good heat dissipation is provided, and the LED light board 5 is fixed to one end of the heat sink 51. Several heat dissipation fins 511 are provided at the other end of the heat sink 51. Fourth mounting grooves 144 are provided on both side plates 14, and heat dissipation hanging edges 512 are provided on both sides of the heat sink 51. The heat dissipation hanging edges 512 are inserted into the fourth mounting grooves 144. Of course, for the support and limiting of the front and rear ends of the heat sink 51, fourth mounting grooves 144 are also provided at corresponding positions on the front plate 13 and the back plate 17.

[0037] To further enhance the heat dissipation function inside the light source housing 1, in this embodiment, heat dissipation holes 19 are provided on both side plates 14. The positions of the heat dissipation holes 19 correspond to the positions of the LED light panel 5, and the heat dissipation holes 19 are directly located in the area directly opposite the LED light panel 5, forming the shortest heat dissipation path. This allows the heat generated by the light panel to be quickly discharged from the housing through air convection, preventing heat accumulation. Furthermore, one of the side plates 14 is provided with a heat dissipation hole 19, and the other side plate 14 is provided with a cooling fan 10. The cooling fan 10 actively draws in / blowns airflow, and the other side is the heat dissipation hole 19, which quickly dissipates the heat from the LED light panel 5 through the heat dissipation hole 19, improving the heat dissipation efficiency by 3 to 5 times compared to pure natural convection.

[0038] The control circuit board 6 and the driver circuit board 7 are located below the LED light board 5. A certain space is provided between the driver circuit board 7 and the LED light board 5 to form an air circulation channel. The cooling fan 10 and the heat dissipation hole 19 are located on both sides of this space. The vertical order of the control circuit board 6 and the driver circuit board 7 can be adjusted as needed.

[0039] Preferably, this embodiment also includes several pillars 61, with both ends of the pillars 61 connected to the four corners of the control circuit board 6 and the drive circuit board 7, respectively, thus keeping the control circuit board 6 and the drive circuit board 7 away from each other. The pillars 61 physically separate the control board and the drive board, which can avoid mutual interference between the two while creating a certain space for wiring and heat dissipation, thereby improving the overall space utilization.

[0040] Furthermore, the control circuit board 6 is also connected to a communication serial port 62 and a power aviation connector 63, which are fixed to the side plate 14. The power supply uses an industrial-grade aviation connector (such as an M12-5 pin), which is fixed by threaded locking or clips, significantly improving vibration resistance compared to ordinary DC sockets and preventing power outages caused by production line vibrations. The serial port (such as RS-485) is directly integrated into the metal housing of the side plate 14, and the housing grounding shields against electromagnetic interference, ensuring stable long-distance communication.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A programmable 2.5D linear scan coaxial programmable light source, characterized in that, include: A light source housing (1) has an installation space inside, and a detection port (11) and a light outlet (12) are provided on the light source housing (1) and are arranged opposite to each other. A beam splitter (8) is provided between the detection port (11) and the light output port (12), and the beam splitter (8) is obliquely inserted into the interior of the light source housing (1); Below the beam splitter (8), from top to bottom, are arranged a transparent plate (2), a diffusion film (3), a diffuser plate (4), and an LED light panel (5); A control circuit board (6) fixed in the installation space and a drive circuit board (7) connected to the control circuit board (6), wherein the drive circuit board (7) is connected to the LED light board (5).

2. The programmable 2.5D line-scan coaxial programmable light source according to claim 1, characterized in that, The light source housing (1) includes a front plate (13), two side plates (14), a bottom plate (15), a top plate (16), and a back plate (17) that are spliced ​​together. The detection port (11) is located on the upper side of the front plate (13). The length of the back plate (17) is less than that of the two side plates (14).

3. The programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, The two side plates (14) are provided with a first mounting groove (143) inclined at (45)°. The front plate (13) and the top plate (16) are each provided with a second mounting groove (131). The two sides of the beam splitter (8) are inserted into the first mounting groove (143), and the upper and lower ends of the beam splitter (8) abut against the second mounting groove (131) respectively.

4. A programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, The light source housing (1) is provided with a third mounting groove (18), which is located below the beam splitter (8). The transparent plate (2), the diffusion film (3), and the diffuser plate (4) are tightly inserted into the third mounting groove (18).

5. A programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, It also includes a heat sink (51), the LED light board (5) is fixed to one end of the heat sink (51), the two side plates (14) are provided with a fourth mounting groove (144), heat dissipation hook edges (512) are provided on both sides of the heat sink (51), the heat dissipation hook edges (512) are inserted into the fourth mounting groove (144), and a number of heat dissipation fins (511) are provided at the other end of the heat sink (51).

6. A programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, The two side plates (14) are provided with heat dissipation through holes (19), and the positions of the heat dissipation through holes (19) correspond to the positions of the lamp panels.

7. A programmable 2.5D line-scan coaxial programmable light source according to claim 6, characterized in that, One of the two side plates (14) is provided with a heat dissipation hole (19), and the other side plate (14) is provided with a cooling fan (10).

8. A programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, It also includes several columns (61), the two ends of which are connected to the four corners of the control circuit board (6) and the drive circuit board (7) respectively, so that the control circuit board (6) and the drive circuit board (7) are far apart.

9. A programmable 2.5D line-scan coaxial programmable light source according to claim 2, characterized in that, The control circuit board (6) is also connected to a communication serial port (62) and a power supply connector (63), which are fixed to the side plate (14).

10. A programmable 2.5D line-scan coaxial programmable light source according to claim 1, characterized in that, An intensifying lens (9) is provided on the detection port (11).

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