Multi-angle aoi inspection light source

Abstract

The utility model discloses a kind of multi-angle AOI detection light source, it is related to in detection light source technical field.Multi-angle AOI detection light source includes light source assembly;Light source assembly includes mounting seat and light emitting part;Light emitting part is provided with multiple, and respectively first light emitting part and second light emitting part;Multiple first light emitting part and multiple second light emitting part are sequentially arranged and set apart along first direction, and are all inclined and set in accommodating groove, and are all set towards opening;Multiple first light emitting part and multiple second light emitting part are symmetrically set relative to the height direction of mounting seat;The angle between the light path of first light emitting part and the light path of second light emitting part;Multiple light source assemblies are arranged and set apart around first axis line.Multiple first light emitting part and second light emitting part can respectively illuminate workpiece to be detected from two angles, multiple light source assemblies can illuminate workpiece to be detected from different angles, can eliminate shadow blind area, reduce the situation of missed detection and wrong detection, improve detection effect.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a multi-angle AOI detection light source. Background Technology

[0002] In the field of machine vision, the appearance of a product is usually inspected by a light source. Linear light sources are a common type of inspection light source. However, when the inspector places the product under the linear light source, it may not be able to be placed perfectly straight, resulting in a slight deviation in position. Since conventional linear light sources usually illuminate the product from a fixed angle, shadow blind spots are likely to appear, leading to missed or incorrect inspections and compromising the inspection effect. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a multi-angle AOI inspection light source that can illuminate the workpiece to be inspected from different angles, eliminate shadow blind spots, reduce missed and incorrect inspections, and improve the inspection effect.

[0004] To achieve the above objectives, this utility model provides a multi-angle AOI detection light source, which includes a light source assembly; the light source assembly includes a mounting base and light-emitting elements; the mounting base is provided with a receiving groove and an opening; the opening is located at the bottom end of the mounting base and communicates with the receiving groove; multiple light-emitting elements are provided, which are respectively a first light-emitting element and a second light-emitting element; the multiple first light-emitting elements and the multiple second light-emitting elements are arranged sequentially at intervals along a first direction, and are all inclinedly arranged in the receiving groove and facing the opening; the multiple first light-emitting elements and the multiple second light-emitting elements are symmetrically arranged with respect to the height direction of the mounting base; there is an angle between the light path of the first light-emitting element and the light path of the second light-emitting element; multiple light source assemblies are provided and are arranged at intervals around a first axis; wherein, the first direction and the axial direction of the first axis are parallel to the length direction of the mounting base.

[0005] Furthermore, a first protrusion and a second protrusion are provided on the top wall of the receiving groove; a plurality of first protrusions and a plurality of second protrusions are arranged sequentially at intervals along the first direction; a plurality of first protrusions and a plurality of second protrusions are symmetrically arranged with respect to the height direction of the mounting base; a first inclined surface is provided on the first protrusion and a second inclined surface is provided on the second protrusion; a plurality of first light-emitting elements are respectively disposed on a plurality of first inclined surfaces and a plurality of second light-emitting elements are respectively disposed on a plurality of second inclined surfaces.

[0006] Furthermore, the light source assembly also includes a first connector; a first connection hole is provided on both the first inclined surface and the second inclined surface, and a second connection hole is provided on the light-emitting element, the second connection hole being disposed opposite to the first connection hole; multiple first connectors are provided, and are respectively disposed through the opposite second connection hole and the first connection hole.

[0007] Furthermore, the angle between the light path direction of the first light-emitting element and the first direction is 45°, the angle between the light path direction of the second light-emitting element and the first direction is 45°, and the angle between the light paths of the first light-emitting element and the second light-emitting element is 90°.

[0008] Furthermore, the plurality of light source components are respectively a plurality of first light source components, a plurality of second light source components, and a plurality of third light source components; the plurality of first light source components are arranged symmetrically in pairs, the plurality of second light source components are arranged symmetrically in pairs, and the plurality of third light source components are arranged symmetrically in pairs; the color of the light emitted by the light-emitting element of the first light source component, the color of the light emitted by the light-emitting element of the second light source component, and the color of the light emitted by the light-emitting element of the third light source component are all different.

[0009] Furthermore, a heat dissipation block is provided at the top of the mounting base, and multiple heat dissipation blocks are provided and arranged at intervals along the first direction; the length direction of the heat dissipation block is in the same direction as the width direction of the mounting base.

[0010] Furthermore, the light source assembly also includes a cooling fan; multiple cooling fans are provided and are arranged sequentially at intervals above the heat sink along the first direction.

[0011] Furthermore, the number of heat sinks is greater than or equal to the number of light-emitting elements.

[0012] Furthermore, the light source assembly also includes a lens and a diffuser plate; the diffuser plate is disposed at the opening, and the lens is disposed within the receiving groove and located between the light-emitting element and the diffuser plate.

[0013] Furthermore, it also includes a mounting plate and a second connector; two mounting plates are provided, which are arranged opposite to each other and spaced apart along the first direction; a plurality of light source components are disposed between the two mounting plates; the mounting base is provided with a first mounting hole on both sides along the first direction, and a plurality of second mounting holes are provided on the mounting plate, which are arranged opposite to the plurality of first mounting holes, and the second connector passes through the opposite first mounting holes and second mounting holes.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The workpiece to be inspected can be placed below the multi-angle AOI detection light source. The bottom end of the mounting base is provided with an opening. The light-emitting element is located in the receiving groove of the mounting base. The light-emitting element can emit light and can shoot the light outward from the opening to illuminate the workpiece to be inspected. Multiple first light-emitting elements and second light-emitting elements are arranged in sequence at intervals along the first direction. The light paths of the multiple first light-emitting elements and the second light-emitting elements have an angle between them, so that the multiple first light-emitting elements and the second light-emitting elements can illuminate the workpiece to be inspected from two angles respectively, so as to eliminate shadow blind spots, reduce the situation of missed detection and false detection, and improve the detection effect.

[0015] 2. Multiple light source components are arranged at intervals around the first axis so that the workpiece to be inspected can be illuminated from different angles by multiple light source components, so as to further eliminate shadow blind spots, reduce missed detections and false detections, and improve the detection effect. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of the multi-angle AOI detection light source of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the multi-angle AOI detection light source of this utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the light source assembly of the multi-angle AOI detection light source of this utility model;

[0020] Figure 4 This is a cross-sectional view of the light source assembly of the multi-angle AOI detection light source of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of multiple light source components of the multi-angle AOI detection light source of this utility model.

[0022] Reference numerals: Light source assembly 100; First light source assembly 101; Second light source assembly 102; Third light source assembly 103; Mounting base 110; Receiving groove 111; Opening 112; Heat sink 113; First mounting hole 114; Light-emitting element 120; First light-emitting element 121; Second light-emitting element 122; First protrusion 131; Second protrusion 132; Cooling fan 150; Lens 160; Diffuser plate 170; Mounting plate 200; Second mounting hole 210. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please see Figures 1 to 5 This utility model provides a multi-angle AOI detection light source, which includes a light source assembly 100. The light source assembly 100 includes a mounting base 110 and light-emitting elements 120. The mounting base 110 is provided with a receiving groove 111 and an opening 112. The opening 112 is located at the bottom end of the mounting base 110 and communicates with the receiving groove 111. Multiple light-emitting elements 120 are provided, which are respectively a first light-emitting element 121 and a second light-emitting element 122. The multiple first light-emitting elements 121 and the multiple second light-emitting elements 122 are arranged sequentially at intervals along a first direction, and are all inclinedly arranged in the receiving groove 111 and facing the opening 112. The multiple first light-emitting elements 121 and the multiple second light-emitting elements 122 are symmetrically arranged with respect to the height direction of the mounting base 110. There is an angle between the light path of the first light-emitting element 121 and the light path of the second light-emitting element 122. Multiple light source assemblies 100 are provided and are arranged at intervals around a first axis. The first direction and the axial direction of the first axis are parallel to the length direction of the mounting base 110.

[0027] 1. The workpiece to be inspected can be placed below the multi-angle AOI inspection light source. The bottom end of the mounting base 110 is provided with an opening 112. The light-emitting element 120 is located in the receiving groove 111 of the mounting base 110. The light-emitting element 120 can emit light and can shoot the light outward from the opening 112 to illuminate the workpiece to be inspected. Multiple first light-emitting elements 121 and second light-emitting elements 122 are arranged sequentially at intervals along the first direction. The light paths of the multiple first light-emitting elements 121 and the second light-emitting elements 122 have an angle between them, so that the multiple first light-emitting elements 121 and the second light-emitting elements 122 can illuminate the workpiece to be inspected from two angles respectively, so as to eliminate shadow blind spots, reduce missed detections and false detections, and improve the detection effect.

[0028] 2. Multiple light source components 100 are arranged at intervals around the first axis so that the workpiece to be inspected can be illuminated from different angles by the multiple light source components 100, so as to further eliminate shadow blind spots, reduce missed detections and false detections, and improve the detection effect.

[0029] Specifically, the length, width, and height of the mounting base 110 are arranged perpendicular to each other.

[0030] Specifically, the number of first light-emitting elements 121 and second light-emitting elements 122 is the same, and the plurality of first light-emitting elements 121 and the plurality of second light-emitting elements 122 are arranged symmetrically one by one.

[0031] Reference Figure 4 In some embodiments of this utility model, a first protrusion 131 and a second protrusion 132 are provided on the top wall of the receiving groove 111; a plurality of first protrusions 131 and a plurality of second protrusions 132 are arranged sequentially at intervals along a first direction; a plurality of first protrusions 131 and a plurality of second protrusions 132 are symmetrically arranged with respect to the height direction of the mounting base 110; a first inclined surface is provided on the first protrusion 131 and a second inclined surface is provided on the second protrusion 132; a plurality of first light-emitting elements 121 are respectively provided on a plurality of first inclined surfaces and a plurality of second light-emitting elements 122 are respectively provided on a plurality of second inclined surfaces.

[0032] By setting the first light-emitting element 121 on the first protrusion 131 and the second light-emitting element 122 on the second protrusion 132, the first light-emitting element 121 and the second light-emitting element 122 can be inclinedly arranged in the receiving groove 111. By setting the first protrusion 131 and the second protrusion 132, the tilt angle of the first light-emitting element 121 and the second light-emitting element 122 can be limited, reducing the difficulty of tilting the first protrusion 131 and the second protrusion 132.

[0033] Specifically, a first light-emitting element 121 is provided on the first inclined surface of each first protrusion 131, and a second light-emitting element 122 is provided on the second inclined surface of each second protrusion 132.

[0034] Specifically, multiple first light-emitting elements 121 are all disposed on the same side of the top wall of the receiving groove 111, and multiple second light-emitting elements 122 are all disposed on the other side of the top wall of the receiving groove 111; multiple first protrusions 131 are all disposed on the same side of the top wall of the receiving groove 111, and multiple second protrusions 132 are all disposed on the other side of the top wall of the receiving groove 111.

[0035] In some embodiments of this utility model, the light source assembly 100 further includes a first connector; a first connecting hole is provided on both the first inclined surface and the second inclined surface, and a second connecting hole is provided on the light-emitting element 120, with the second connecting hole and the first connecting hole being disposed opposite to each other; multiple first connectors are provided, and they are respectively disposed through the opposite second connecting hole and the first connecting hole.

[0036] Both the first light-emitting element 121 and the second light-emitting element 122 are provided with second connecting holes. When the first light-emitting element 121 is disposed on the first inclined surface, the second connecting hole of the first light-emitting element 121 is disposed opposite to the first connecting hole on the first inclined surface. The first connecting member passes through the opposite second connecting hole and the first connecting hole to fix the first light-emitting element 121 on the first inclined surface. When the second light-emitting element 122 is disposed on the second inclined surface, the second connecting hole of the second light-emitting element 122 is disposed opposite to the first connecting hole on the second inclined surface. The first connecting member passes through the opposite second connecting hole and the first connecting hole to fix the second light-emitting element 122 on the second inclined surface.

[0037] Reference Figure 4 In some embodiments of this utility model, the angle between the optical path direction of the first light-emitting element 121 and the first direction is 45°, the angle between the optical path direction of the second light-emitting element 122 and the first direction is 45°, and the angle between the optical paths of the first light-emitting element 121 and the second light-emitting element 122 is 90°, so that the beams from both sides can cross and cover the measured area of ​​the workpiece to be tested.

[0038] Reference Figure 1 , Figure 2 and Figure 5In some embodiments of this utility model, the multiple light source components 100 are respectively multiple first light source components 101, multiple second light source components 102, and multiple third light source components 100; the multiple first light source components 101 are arranged symmetrically in pairs, the multiple second light source components 102 are arranged symmetrically in pairs, and the multiple third light source components 100 are arranged symmetrically in pairs; the colors of the light emitted by the light-emitting element 120 of the first light source component 101, the light emitted by the light-emitting element 120 of the second light source component 102, and the light emitted by the light-emitting element 120 of the third light source component 100 are different from each other. Different colors illuminate the workpiece to be tested, which can improve the lighting adaptability.

[0039] Specifically, the light emitted by the light-emitting element 120 of the first light source assembly 101 is red, the light emitted by the light-emitting element 120 of the second light source assembly 102 is green, and the light emitted by the light-emitting element 120 of the third light source assembly 100 is blue. By activating multiple first light source assemblies 101, multiple second light source assemblies 102, and multiple third light source assemblies 100 in turn, each area can be illuminated in sequence according to red light, green light, and blue light during the camera's line exposure period, and three-channel images can be acquired simultaneously.

[0040] Reference Figure 3 and Figure 4 In some embodiments of this utility model, a heat sink 113 is provided at the top of the mounting base 110. Multiple heat sinks 113 are provided and are arranged at intervals along the first direction. The length direction of the heat sink 113 is in the same direction as the width direction of the mounting base 110.

[0041] The light-emitting element 120 generates a lot of heat during operation. The light-emitting element 120 is located on the top wall of the receiving groove 111. By setting the heat sink 113, the heat dissipation effect of the mounting base 110 can be improved, thereby reducing the temperature of the light-emitting element 120 and enabling the light-emitting element 120 to work normally.

[0042] Specifically, the arrangement direction of the multiple heat sinks 113 is the same as the arrangement direction of the multiple light-emitting elements 120, so as to reduce the excessive concentration of heat.

[0043] Reference Figure 4 In some embodiments of the present invention, the light source assembly 100 further includes a cooling fan 150; multiple cooling fans 150 are provided and are arranged at intervals above the heat sink 113 along the first direction.

[0044] The cooling fan 150 can blow airflow toward the heat sink 113 to improve the heat dissipation effect of the heat sink 113.

[0045] In some embodiments of this utility model, the number of heat sinks 113 is greater than or equal to the number of light-emitting elements 120, so as to further reduce the situation of excessive heat concentration.

[0046] Reference Figure 4 In some embodiments of this utility model, the light source assembly 100 further includes a lens 160 and a diffuser plate 170; the diffuser plate 170 is disposed at the opening 112, and the lens 160 is disposed in the receiving groove 111 and located between the light-emitting element 120 and the diffuser plate 170.

[0047] The light emitted by the light-emitting element 120 can pass through the lens 160. By setting the lens 160, the light can be focused, thus improving the lighting effect. By setting the diffuser 170, a diffuser effect can be achieved.

[0048] Reference Figure 1 and Figure 2 In some embodiments of this utility model, it further includes a mounting plate 200 and a second connector; two mounting plates 200 are provided, and are arranged opposite to each other and spaced apart along the first direction; a plurality of light source assemblies 100 are disposed between the two mounting plates 200; the mounting base 110 is provided with first mounting holes 114 on both sides along the first direction, and a plurality of second mounting holes 210 are provided on the mounting plate 200, the plurality of second mounting holes 210 are arranged opposite to the plurality of first mounting holes 114, and the second connector passes through the opposite first mounting holes 114 and second mounting holes 210.

[0049] Multiple light source components 100 are installed between two mounting plates 200. The position between the mounting base 110 of the light source component 100 and the mounting plate 200 is fixed by the second connector, and the position between the multiple light source components 100 can be defined. After moving the mounting plate 200, multiple light source components 100 can be moved at the same time, reducing the difficulty of moving multiple light source components 100.

[0050] 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 multi-angle AOI detection light source, characterized in that, include: A light source assembly includes a mounting base and light-emitting elements; the mounting base has a receiving groove and an opening; the opening is located at the bottom end of the mounting base and communicates with the receiving groove; multiple light-emitting elements are provided, which are designated as first light-emitting elements and second light-emitting elements; the multiple first light-emitting elements and the multiple second light-emitting elements are arranged sequentially at intervals along a first direction, and are all inclinedly disposed within the receiving groove and facing the opening; the multiple first light-emitting elements and the multiple second light-emitting elements are symmetrically arranged with respect to the height direction of the mounting base; there is an angle between the light paths of the first light-emitting elements and the light paths of the second light-emitting elements; multiple light source assemblies are provided and are arranged at intervals around a first axis; The first direction and the axial direction of the first axis are arranged parallel to the length direction of the mounting base.

2. The multi-angle AOI detection light source according to claim 1, characterized in that, The top wall of the receiving groove is provided with a first protrusion and a second protrusion; a plurality of first protrusions and a plurality of second protrusions are arranged sequentially at intervals along the first direction; a plurality of first protrusions and a plurality of second protrusions are symmetrically arranged with respect to the height direction of the mounting base; a first inclined surface is provided on the first protrusion and a second inclined surface is provided on the second protrusion; a plurality of first light-emitting elements are respectively disposed on a plurality of first inclined surfaces and a plurality of second light-emitting elements are respectively disposed on a plurality of second inclined surfaces.

3. The multi-angle AOI detection light source according to claim 2, characterized in that, The light source assembly further includes a first connector; a first connection hole is provided on both the first inclined surface and the second inclined surface, and a second connection hole is provided on the light-emitting element, the second connection hole being disposed opposite to the first connection hole; multiple first connectors are provided, and are respectively disposed through the opposite second connection hole and the first connection hole.

4. The multi-angle AOI detection light source according to claim 1, characterized in that, The angle between the light path direction of the first light-emitting element and the first direction is 45°, the angle between the light path direction of the second light-emitting element and the first direction is 45°, and the angle between the light paths of the first light-emitting element and the second light-emitting element is 90°.

5. The multi-angle AOI detection light source according to claim 1, characterized in that, The plurality of light source components are respectively a plurality of first light source components, a plurality of second light source components, and a plurality of third light source components; the plurality of first light source components are arranged symmetrically in pairs, the plurality of second light source components are arranged symmetrically in pairs, and the plurality of third light source components are arranged symmetrically in pairs; the color of the light emitted by the light-emitting element of the first light source component, the color of the light emitted by the light-emitting element of the second light source component, and the color of the light emitted by the light-emitting element of the third light source component are all different.

6. The multi-angle AOI detection light source according to claim 1, characterized in that, The top of the mounting base is provided with a heat dissipation block, and multiple heat dissipation blocks are provided and arranged at intervals along the first direction; the length direction of the heat dissipation block is in the same direction as the width direction of the mounting base.

7. The multi-angle AOI detection light source according to claim 6, characterized in that, The light source assembly also includes a cooling fan; multiple cooling fans are provided and are arranged sequentially at intervals above the heat sink along the first direction.

8. The multi-angle AOI detection light source according to claim 6, characterized in that, The number of heat sinks is greater than or equal to the number of light-emitting elements.

9. The multi-angle AOI detection light source according to claim 1, characterized in that, The light source assembly also includes a lens and a diffuser plate; the diffuser plate is disposed at the opening, and the lens is disposed in the receiving groove and located between the light-emitting element and the diffuser plate.

10. The multi-angle AOI detection light source according to claim 1, characterized in that, It also includes a mounting plate and a second connector; there are two mounting plates, which are arranged opposite to each other and spaced apart along the first direction; a plurality of light source components are arranged between the two mounting plates; the mounting base is provided with a first mounting hole at both ends along the first direction, and a plurality of second mounting holes are provided on the mounting plate, which are arranged opposite to the plurality of first mounting holes, and the second connector passes through the opposite first mounting holes and second mounting holes.

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