Condensation light source for PCB (Printed Circuit Board) detection

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) detection, in particular to a condensation light source for PCB detection, which comprises a box body, a reflector, a main light source assembly and an auxiliary light source assembly, a mounting cavity is formed in the box body, a shooting hole and a light emitting hole are coaxially formed in the cavity wall of the top and the cavity wall of the bottom of the mounting cavity respectively, the reflector is obliquely arranged in the middle of the mounting cavity, the main light source assembly is movably arranged in the mounting cavity and located on one side of the reflector, and the auxiliary light source assemblies are movably connected to the positions, located on the two sides of the light emitting hole, in the mounting cavity; according to the condensation light source for PCB detection provided by the utility model, light emitted by the main light source assembly is reflected to the light outlet hole through the reflector, is converged with light emitted by the auxiliary light source assembly, and is uniformly irradiated on a detected product, so that the irradiation brightness of the light source is improved, the imaging quality of the product is better, and the detection efficiency is improved; angles of the main light source assembly and the auxiliary light source assembly can be adjusted and can be adjusted to the optimal irradiation angle according to needs.

Description

Technical Field

[0001] This utility model relates to the field of PCB board inspection technology, specifically to a focused light source for PCB board inspection. Background Technology

[0002] Circuit boards (PCBs) are the most in-demand board components in the electronics manufacturing industry. When PCBs are put into production line manufacturing, they need to be visually inspected in the AOI (Automated Optical Inspection) station. However, when the CCD in the existing AOI station inspects the PCB, it needs to be illuminated by a light source.

[0003] The existing light sources have low illumination brightness, and the angle at which they illuminate the PCB board cannot be adjusted as needed, which limits their application in practice.

[0004] Therefore, the applicant hereby proposes a focused light source for PCB board inspection to solve the aforementioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a focused light source for PCB board inspection.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a focused light source for PCB board inspection, including a housing, a reflector, a main light source assembly, and a secondary light source assembly. The housing has a mounting cavity, and the top and bottom walls of the mounting cavity are coaxially provided with an imaging hole and a light emission hole, respectively. The reflector is inclinedly disposed in the middle of the mounting cavity. The main light source assembly is movably disposed in the mounting cavity on one side of the reflector. Secondary light source assemblies are movably connected to both sides of the light emission hole in the mounting cavity.

[0008] Furthermore, the main light source assembly includes a main light source and a main diffuser plate; the two main light sources are arranged vertically and their ends are bolted to the cavity wall corresponding to the mounting cavity; the main diffuser plate is located between the main light source and the reflector; two first arc-shaped grooves are symmetrically arranged vertically on both ends of the housing; and a main adjustment rod is fixed on both ends of the main light source and slides in cooperation with the corresponding first arc-shaped groove.

[0009] Furthermore, the secondary light source assembly includes a secondary light source and a secondary diffuser plate; the secondary light source is located on the side of the light outlet and both ends are bolted to the cavity wall corresponding to the mounting cavity; the two end faces of the housing are symmetrically provided with second arc-shaped grooves; the two ends of the secondary light source are fixed with secondary adjustment rods that slide in cooperation with the corresponding second arc-shaped grooves; and the secondary diffuser plate is movably located between the secondary light source and the light outlet.

[0010] Furthermore, the main light source and the auxiliary light source have the same structure, both consisting of a mounting frame, an LED bead board, heat dissipation fins, a bracket plate, and a cooling fan; the bottom surface of the mounting frame is connected to the LED bead board, the top surface of the mounting frame is provided with heat dissipation fins, the top surface of the mounting frame is also connected to the bracket plate, and the bracket plate has multiple mounting holes along its length, each of which is connected to a cooling fan.

[0011] Furthermore, each of the rear sides of both ends of the housing is provided with a lifting mechanism consisting of a fixed plate, a lifting plate, a slider, and an adjusting screw; the fixed plate is connected to the housing, the lifting plate has a vertically opened lifting groove, the slider is slidably disposed in the lifting groove and its rear end is fixedly connected to the fixed plate, and an adjusting screw is threadedly connected to the top of the lifting plate, the inner end of the adjusting screw extends into the lifting groove and is fixedly connected to the slider.

[0012] Furthermore, it also includes a Y-axis mechanism consisting of a Y-axis slide plate, an adjusting block, and a Y-axis screw; the Y-axis slide plate has a Y-axis groove along its length direction, the outer end of the lifting plate slides in cooperation with the Y-axis groove, the front end of the Y-axis slide plate is bolted with an adjusting block, the adjusting block is threadedly connected with a Y-axis screw, and the inner end of the Y-axis screw is threadedly connected to the lifting plate.

[0013] Furthermore, multiple heat dissipation holes are also provided on the outer surface of the casing.

[0014] The beneficial effects achieved by this utility model are as follows:

[0015] The present invention provides a focused light source for PCB board inspection. The light emitted by the main light source component is reflected by the reflector to the light outlet and merges with the light emitted by the secondary light source component to uniformly illuminate the product being inspected, thereby improving the brightness of the light source and thus improving the imaging quality of the product and improving the inspection efficiency.

[0016] Both the main light source component and the auxiliary light source component can be angled and adjusted to the optimal illumination angle as needed.

[0017] The lifting mechanism and the Y-axis mechanism work together to adjust the specific height of the chamber from the worktable and the Y-axis distance. As the height of the chamber changes, the brightness of the light source shining on the product being tested will also be reduced or increased accordingly. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1 Enlarged view of point A.

[0020] Figure 3 yes Figure 1 Enlarged view of point B.

[0021] Figure 4 yes Figure 1 Sectional view at point II.

[0022] Figure 5 This is a schematic diagram of the explosion of the main light source.

[0023] Figure 6 This is a three-dimensional schematic diagram of the rear side of this utility model.

[0024] Figure 7 yes Figure 6 Enlarged view of point C. Detailed Implementation

[0025] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are clearly described below with reference to the accompanying drawings. Obviously, the specific embodiments described are merely preferred embodiments of this utility model, and not all embodiments.

[0026] like Figure 1-7 As shown, this utility model provides a focused light source for PCB board inspection, used to uniformly illuminate the PCB board being inspected within the PCB board inspection station; it includes a housing 1, a reflector 2, a main light source assembly 3, and a secondary light source assembly 4; the housing 1 has a mounting cavity 11, and the top and bottom walls of the mounting cavity 11 are coaxially provided with a shooting hole 12 and a light emission hole 13, respectively; the reflector 2 is inclinedly disposed in the middle of the mounting cavity 11, specifically, the reflector 2 is inclinedly disposed in the middle of the mounting cavity 11 between the shooting hole 12 and the light emission hole 13, used to focus and reflect the light emitted by the main light source assembly 3 to the light emission hole 13; the main light source assembly 3 is movably disposed in the mounting cavity 11 on one side of the reflector 2, and the secondary light source assembly 4 is movably connected to both sides of the light emission hole 13 in the mounting cavity 11.

[0027] The main light source assembly 3 includes a main light source 31 and a main diffuser plate 32. The two main light sources 31 are arranged vertically and their ends are bolted to the cavity walls of the mounting cavity 11. The main diffuser plate 32 is located between the main light source 31 and the reflector plate 2. Two first arc-shaped grooves 14 are symmetrically arranged vertically on both ends of the housing 1. The main light source 31 has a main adjustment rod 31A fixed on both ends, which slides in cooperation with the corresponding first arc-shaped groove 14. The main light source can be adjusted by loosening the bolts, moving the main adjustment rods to adjust the illumination angle of the main light source, and then tightening the bolts to lock it in place. The angle of the main light source can be adjusted to the optimal illumination angle as needed. The light emitted by the main light source is scattered by the main diffuser plate and then illuminated onto the product by the reflector plate.

[0028] The secondary light source assembly 4 includes a secondary light source 41 and a secondary diffuser plate 42. The secondary light source 41 is located on the side of the light emission hole 13, and both ends of it are bolted to the cavity wall of the mounting cavity 11. The two end faces of the housing 1 are symmetrically provided with second arc-shaped grooves 15. The secondary light source 41 is fixed with secondary adjustment rods 411 that slide in cooperation with the corresponding second arc-shaped grooves 15. The secondary diffuser plate 42 is movably disposed between the secondary light source 41 and the light emission hole 13. The secondary light source can be adjusted by loosening the bolts, moving the secondary adjustment rods to adjust the illumination angle of the secondary light source, and then tightening the bolts to lock it in place. This allows for adjustment of the angle of the secondary light source. During use, the light emitted by the secondary light source is scattered by the secondary diffuser plate and then evenly illuminates the product. The main light source, reflector, and secondary light source work together to improve the illumination brightness, thereby improving the imaging quality of the product and increasing the detection efficiency.

[0029] The main light source 31 and the auxiliary light source 41 have the same structure, both consisting of a mounting frame 311, an LED bead board 312, heat dissipation fins 313, a support plate 314, and a cooling fan 315. The LED bead board 312 is bolted to the bottom of the mounting frame 311, and the heat dissipation fins 313 are provided on the top surface of the mounting frame 311. The support plate 314 is also bolted to the top surface of the mounting frame 311. Multiple mounting holes 3141 are opened along the length of the support plate 314, and cooling fans 315 are bolted to each mounting hole 3141. While achieving high-brightness lighting, the heat dissipation fins and cooling fans work together to enable the main light source and the auxiliary light source to have high-efficiency heat dissipation.

[0030] The rear sides of both ends of the housing 1 are equipped with a lifting mechanism 5 consisting of a fixed plate 51, a lifting plate 52, a slider 53, and an adjusting screw 54. The fixed plate 51 is bolted to the housing 1. The lifting plate 52 has a vertically formed lifting groove 521. The slider 53 is slidably disposed in the lifting groove 521 and its rear end is bolted to the fixed plate 51. The top of the lifting plate 52 is threaded with an adjusting screw 54. The inner end of the adjusting screw 54 extends into the lifting groove 521 and is fixedly connected to the slider 53. This mechanism allows for adjustment of the distance between the housing and the worktable. By rotating the adjusting screw counterclockwise or clockwise, the slider can drive the housing to move up and down along the lifting groove. As the height increases or decreases, the brightness of the light source shining on the product being tested will decrease or increase accordingly.

[0031] It also includes a Y-axis mechanism 6 consisting of a Y-axis sliding plate 61, an adjusting block 62, and a Y-axis screw 63; the Y-axis sliding plate 61 has a Y-axis groove 611 along its length direction, the outer end of the lifting plate 52 is slidably engaged with the Y-axis groove 611, the front end of the Y-axis sliding plate 61 is bolted with an adjusting block 62, the adjusting block 62 is threadedly connected with a Y-axis screw 63, and the inner end of the Y-axis screw 63 is threadedly connected with the lifting plate; this enables the box to be adjusted in the Y-axis direction, facilitating product alignment; by rotating the Y-axis screw counterclockwise or clockwise, the lifting plate can be driven to slide within the Y-axis groove.

[0032] The outer surface of the housing 1 is also provided with a number of heat dissipation holes 16 for heat dissipation and weight reduction.

[0033] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A focused light source for PCB board inspection, characterized in that: The device includes a housing (1), a reflector (2), a main light source assembly (3), and a secondary light source assembly (4). The housing (1) has a mounting cavity (11). The top and bottom walls of the mounting cavity (11) are coaxially provided with a shooting hole (12) and a light-emitting hole (13). The reflector (2) is inclinedly disposed in the middle of the mounting cavity (11). The main light source assembly (3) is movably disposed in the mounting cavity (11) on one side of the reflector (2). The secondary light source assembly (4) is movably connected to both sides of the light-emitting hole (13) in the mounting cavity (11).

2. A focused light source for PCB board inspection according to claim 1, characterized in that: The main light source assembly (3) includes a main light source (31) and a main diffuser plate (32); the two main light sources (31) are arranged vertically and their ends are bolted to the cavity wall corresponding to the mounting cavity (11). The main diffuser plate (32) is located between the main light source (31) and the reflector (2). Two first arc-shaped grooves (14) are symmetrically arranged vertically on both ends of the housing (1). The main light source (31) is fixed with a main adjusting rod (31A) that slides in cooperation with the corresponding first arc-shaped groove (14) on both ends.

3. A focused light source for PCB board inspection according to claim 2, characterized in that: The secondary light source assembly (4) includes a secondary light source (41) and a secondary diffuser plate (42); the secondary light source (41) is located on the side of the light outlet hole (13) and both ends of it are bolted to the cavity wall of the mounting cavity (11); the two end faces of the housing (1) are symmetrically provided with second arc-shaped grooves (15); the two ends of the secondary light source (41) are fixed with secondary adjustment rods (411) that slide in cooperation with the corresponding second arc-shaped grooves (15); the secondary diffuser plate (42) is movably located between the secondary light source (41) and the light outlet hole (13).

4. A focused light source for PCB board inspection according to claim 3, characterized in that: The main light source (31) and the secondary light source (41) have the same structure, both consisting of a mounting frame (311), an LED bead board (312), heat dissipation fins (313), a bracket plate (314), and a cooling fan (315). The bottom surface of the mounting frame (311) is connected to the LED bead board (312), the top surface of the mounting frame (311) is provided with heat dissipation fins (313), the top surface of the mounting frame (311) is also connected to the bracket plate (314), and the bracket plate (314) has multiple mounting holes (3141) along its length direction. Each mounting hole (3141) is connected to a cooling fan (315).

5. A focused light source for PCB board inspection according to any one of claims 1-4, characterized in that: The box body (1) is provided with a lifting mechanism (5) consisting of a fixed plate (51), a lifting plate (52), a slider (53), and an adjusting screw (54) on both rear sides. The fixed plate (51) is connected to the box body (1). The lifting plate (52) has a vertically opened lifting groove (521). The slider (53) is slidably disposed in the lifting groove (521) and its rear end is fixedly connected to the fixed plate (51). The top of the lifting plate (52) is threaded with an adjusting screw (54). The inner end of the adjusting screw (54) extends into the lifting groove (521) and is fixedly connected to the slider (53).

6. A focused light source for PCB board inspection according to claim 5, characterized in that: It also includes a Y-axis mechanism (6) consisting of a Y-axis slide plate (61), an adjusting block (62), and a Y-axis screw (63); the Y-axis slide plate (61) has a Y-axis groove (611) along its length direction, the outer end of the lifting plate (52) is slidably engaged with the Y-axis groove (611), the front end of the Y-axis slide plate (61) is bolted with an adjusting block (62), the adjusting block (62) is threadedly connected with a Y-axis screw (63), and the inner end of the Y-axis screw (63) is threadedly connected with the lifting plate.

7. A focused light source for PCB board inspection according to claim 6, characterized in that: Multiple heat dissipation holes (16) are also provided on the outer surface of the box (1).

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