Visual inspection device with multi-angle illumination
By using a multi-angle illumination visual inspection device, which combines multiple reflectors and light-emitting components, the problem of poor illumination effect of traditional ring light sources is solved, and efficient inspection of products with complex micro-geometric features is achieved.
Patent Information
- Application Number
- CN202511756643.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-02-03
AI Technical Summary
Traditional ring light sources have a single beam angle, resulting in poor illumination of products with complex micro-geometric features, which affects the detection effect.
Design a multi-angle illumination visual inspection device. By combining a mounting base, a reflective component, and a light-emitting component, multiple reflectors and light-emitting elements are used to illuminate the workpiece to be inspected from multiple angles and positions. This includes different height and angle settings for the first reflector, the second reflector, the first light-emitting element, the second light-emitting element, and the third light-emitting element to achieve multi-angle illumination.
It improves the illumination effect on products with complex micro-geometric features, ensuring the accuracy and effectiveness of the inspection.
Smart Images
Figure CN121453767A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of light source technology, and in particular to a visual inspection device with multi-angle illumination. Background Technology
[0002] With the continuous improvement of industrial automation, machine vision is increasingly being used in precision manufacturing, semiconductor inspection, electronic component sorting and other fields. When inspecting the appearance of these products, it is usually necessary to use a light source for illumination. Among them, ring light sources are widely used in inspection light sources.
[0003] When the surface of the product to be inspected has micro-geometric features, such as tiny scratches, dents, or protrusions, a ring light source is often used for illumination. However, if the micro-geometric features of the product surface are more complex, the traditional ring light source emits light at a relatively single angle, resulting in poor illumination of products with complex micro-geometric features and affecting the inspection results. Summary of the Invention
[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a multi-angle illumination visual inspection device that can illuminate the workpiece to be inspected from multiple angles and multiple positions, resulting in a better illumination effect on the workpiece and ensuring the inspection effect.
[0005] To achieve the above objectives, the present invention provides a multi-angle illumination visual inspection device, comprising a mounting base, a reflective component, and a light-emitting component; the mounting base has a first cavity extending vertically through it; the reflective component includes a first reflector and a second reflector; the height of the second reflector is lower than the height of the first reflector; multiple first and second reflectors are provided, all arranged around a vertical axis on the inner wall of the first cavity, and all oriented downwards; the light-emitting component includes a first light-emitting element, a second light-emitting element, and a third light-emitting element; the height of the first light-emitting element is lower than the height of the second reflector; the height of the second light-emitting element is lower than the height of the first light-emitting element but higher than the height of the third light-emitting element; multiple first, second, and third light-emitting elements are provided, all arranged around the vertical axis on the inner wall of the first cavity; multiple first light-emitting elements are respectively oriented towards multiple second reflectors, and the second light-emitting elements are oriented upwards; multiple third light-emitting elements are respectively oriented towards multiple first reflectors.
[0006] Furthermore, the angle between the reflecting surface of the first reflector and the horizontal plane is smaller than the angle between the reflecting surface of the second reflector and the horizontal plane.
[0007] Furthermore, the angle between the luminous surface of the second luminous element and the horizontal plane is greater than the angle between the luminous surface of the first luminous element and the horizontal plane, and smaller than the angle between the luminous surface of the third luminous element and the horizontal plane.
[0008] Furthermore, the plurality of first light-emitting elements are respectively located directly below the plurality of second reflectors, and the first light-emitting elements are arranged vertically upward.
[0009] Furthermore, four of each of the first reflectors and the third light-emitting elements are provided; two of the first reflectors are arranged opposite to each other and spaced apart along a first horizontal direction, and are respectively a first reflective structure and a second reflective structure along the first horizontal direction; two of the third light-emitting elements are arranged opposite to each other and spaced apart along the first horizontal direction, and are respectively a first light-emitting structure and a second light-emitting structure along the first horizontal direction; the first light-emitting structure is inclined toward the second reflective structure, and the second light-emitting structure is inclined toward the first reflective structure; the other two of the first reflectors are arranged opposite to each other and spaced apart along a second horizontal direction, and are respectively a third reflective structure and a fourth reflective structure along the second horizontal direction; the other two of the third light-emitting elements are arranged opposite to each other and spaced apart along the second horizontal direction, and are respectively a third light-emitting structure and a fourth light-emitting structure along the second horizontal direction; the third light-emitting structure is inclined toward the fourth reflective structure, and the fourth light-emitting structure is inclined toward the third reflective structure; wherein the first horizontal direction and the second horizontal direction are perpendicular to each other.
[0010] Furthermore, the distance between the first reflector and the vertical axis is less than the distance between the second reflector and the vertical axis, and / or the distance between the second light-emitting element and the vertical axis is less than the distance between the first light-emitting element and the vertical axis, and greater than the distance between the third light-emitting element and the vertical axis.
[0011] Furthermore, the mounting base includes a first annular base, a second annular base, and a third annular base stacked sequentially in a vertical direction; the middle portions of the first annular base, the second annular base, and the third annular base are all vertically connected; a plurality of first reflectors and a plurality of second reflectors are disposed on the inner sidewall of the first annular base; a plurality of vertically connected channels are provided at the top edge of the second annular base, and the channels are spaced apart from the middle portion of the second annular base; the upper portions of the plurality of channels are respectively disposed opposite to the plurality of second reflectors; a plurality of first light-emitting elements are disposed at the top of the third annular base and are respectively disposed opposite to the lower portions of the plurality of channels.
[0012] Furthermore, the mounting base also includes a fourth annular base and a fifth annular base stacked sequentially in a vertical direction; the fourth annular base is disposed at the bottom end of the third annular base; the middle portions of the fourth annular base and the fifth annular base are both vertically connected; a plurality of second light-emitting elements are inclinedly disposed on the inner sidewall of the fourth annular base; a plurality of third light-emitting elements are inclinedly disposed on the inner sidewall of the fifth annular base.
[0013] Furthermore, it also includes a base, a camera detection module, and a third reflector; the base is disposed at the bottom end of the mounting base; the base has an opening and a second cavity; the upper part of the second cavity extends to the top end of the base and communicates with the first cavity; the opening is disposed at the side end of the base and communicates with the second cavity; the third reflector is obliquely disposed in the second cavity and is disposed opposite to the upper part of the second cavity and the opening; the camera detection module is located on one side of the base and faces the opening.
[0014] Furthermore, it also includes a connector, a fastener, and a strip; the fastener is detachably connected to the camera detection module; one end of the strip is connected to the bottom end of the base, and the fastener is movably disposed at the top end of the strip in a direction closer to or farther from the base; the fastener is provided with a connecting groove, and the strip is provided with a connecting hole; the connecting hole and the connecting groove are arranged opposite to each other, and the connector is detachably inserted through the connecting hole and the connecting groove.
[0015] Compared with the prior art, the present invention has the following advantages: The first cavity of the mounting base is vertically through, allowing the workpiece to be inspected to be inserted from the top of the mounting base into the upper part of the first cavity. Multiple first light-emitting elements are respectively positioned facing multiple second reflectors, so that the light emitted by the first light-emitting elements illuminates the second reflectors and is reflected onto the workpiece to be inspected. Multiple second reflectors and first light-emitting elements are arranged around a vertical axis on the inner wall of the first cavity, enabling illumination of the workpiece to be inspected from multiple positions. Multiple third light-emitting elements are respectively positioned facing multiple first reflectors, so that the light emitted by the third light-emitting elements illuminates the first... The reflector is designed to reflect light onto the workpiece to be inspected. Multiple first reflectors and a third light-emitting element are arranged around a vertical axis on the inner wall of the first cavity, enabling illumination of the workpiece from multiple positions. Multiple second light-emitting elements are arranged at an angle upwards, with the height of the second light-emitting elements lower than that of the first light-emitting elements and higher than that of the third light-emitting elements. The height of the second reflector is lower than that of the first reflector, allowing the first, second, and third light-emitting elements to illuminate the workpiece from multiple angles and positions. This provides good illumination for workpieces with complex micro-geometric features, ensuring effective inspection. Attached Figure Description
[0016] To more clearly illustrate the technology in the embodiments of the present invention 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 the present invention. 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 illumination visual inspection device of the present invention;
[0018] Figure 2 This is a cross-sectional view of the mounting base, reflective component, and light-emitting component of the multi-angle illumination visual inspection device of the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of the first reflector and the third light-emitting element of the multi-angle illumination visual detection device of the present invention;
[0020] Figure 4 This is a schematic diagram of the base and strip of the multi-angle illumination visual inspection device of the present invention;
[0021] Figure 5 for Figure 4 A cross-sectional view of the base and strip of the multi-angle illumination visual inspection device of the present invention;
[0022] Figure 6 This is a schematic diagram of the structure of the fixing component of the multi-angle illumination visual inspection device of the present invention.
[0023] Reference numerals: Mounting base 100; First cavity 101; First annular seat 110; Second annular seat 120; Third annular seat 130; Fourth annular seat 140; Fifth annular seat 150; First reflector 210; First reflective structure 211; Second reflective structure 212; Third reflective structure 213; Fourth reflective structure 214; Second reflector 220; First light-emitting element 310; Second light-emitting element 320; Third light-emitting element 330; First light-emitting structure 331; Second light-emitting structure 332; Third light-emitting structure 333; Fourth light-emitting structure 334; Base 400; Opening 410; Second cavity 420; Third reflector 500; Fixing member 600; Connecting groove 610; Strip 700; Connecting hole 710. Detailed Implementation
[0024] 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.
[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.
[0026] Furthermore, if the embodiments of the present invention 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.
[0027] Please see Figures 1 to 6An embodiment of the present invention provides a multi-angle illumination visual inspection device, which includes a mounting base 100, a reflective component, and a light-emitting component. The mounting base 100 is provided with a first cavity 101 extending vertically. The reflective component includes a first reflector 210 and a second reflector 220. The height of the second reflector 220 is lower than the height of the first reflector 210. Multiple first and second reflectors 210 and 220 are provided, all arranged around a vertical axis on the inner wall of the first cavity 101, and all oriented downwards at an angle. The light-emitting component includes a first light-emitting element 310. The second light-emitting element 320 and the third light-emitting element 330; the height of the first light-emitting element 310 is lower than the height of the second reflector 220; the height of the second light-emitting element 320 is lower than the height of the first light-emitting element 310 and higher than the height of the third light-emitting element 330; multiple first light-emitting elements 310, second light-emitting elements 320 and third light-emitting elements 330 are provided, and they are all arranged around the vertical axis on the inner wall of the first cavity 101; multiple first light-emitting elements 310 are respectively arranged facing multiple second reflectors 220, and the second light-emitting elements 320 are arranged inclined upwards; multiple third light-emitting elements 330 are respectively arranged facing multiple first reflectors 210.
[0028] The first cavity 101 of the mounting base 100 is vertically through, allowing the workpiece to be inspected to be inserted from the top of the mounting base 100 into the upper part of the first cavity 101. Multiple first light-emitting elements 310 are respectively positioned facing multiple second reflectors 220, so that the light emitted by the first light-emitting elements 310 illuminates the second reflectors 220 and is reflected onto the workpiece to be inspected. The multiple second reflectors 220 and the first light-emitting elements 310 are arranged around a vertical axis on the inner wall of the first cavity 101, enabling illumination of the workpiece to be inspected from multiple positions. Multiple third light-emitting elements 330 are respectively positioned facing multiple first reflectors 210, so that the light emitted by the third light-emitting elements 330 illuminates the first reflectors 210. The first reflector 210 reflects light onto the workpiece to be inspected. Multiple first reflectors 210 and third light-emitting elements 330 are arranged around the vertical axis on the inner wall of the first cavity 101, which can illuminate the workpiece to be inspected from multiple positions. Multiple second light-emitting elements 320 are arranged at an angle upward. The height of the second light-emitting elements 320 is lower than the height of the first light-emitting elements 310 and higher than the height of the third light-emitting elements 330. The height of the second reflector 220 is lower than the height of the first reflector 210. This allows the first light-emitting elements 310, the second light-emitting elements 320 and the third light-emitting elements 330 to illuminate the workpiece to be inspected from multiple angles and positions. The illumination effect is better for workpieces with complex micro-geometric features, which can ensure the inspection effect.
[0029] Reference Figure 2In some embodiments of the present invention, the light emitted by the first light-emitting element 310 illuminates the second reflector 220, and the light emitted by the third light-emitting element 330 illuminates the first reflector 210. The angle between the reflective surface of the first reflector 210 and the horizontal plane is smaller than the angle between the reflective surface of the second reflector 220 and the horizontal plane. This allows the optical channels emitted by the first light-emitting element 310 and the third light-emitting element 330 to intersect, avoiding the crossover of optical channels and mutual interference. This eliminates stray light and glare, ensures the uniformity and purity of the emitted light, and lays the foundation for the camera to capture high-contrast, high-signal-to-noise ratio images.
[0030] Specifically, the angle between the reflecting surface of the first reflector 210 and the horizontal plane is less than or equal to 45°, and the angle between the reflecting surface of the second reflector 220 and the horizontal plane is greater than or equal to 60°.
[0031] Reference Figure 2 In some embodiments of the present invention, the angle between the emitting surface of the second light-emitting element 320 and the horizontal plane is greater than the angle between the emitting surface of the first light-emitting element 310 and the horizontal plane, and less than the angle between the emitting surface of the third light-emitting element 330 and the horizontal plane, so as to realize that the optical channels emitted by the first light-emitting element 310, the optical channels emitted by the second light-emitting element 320 and the optical channels emitted by the third light-emitting element 330 are intertwined, avoiding the optical channels from intersecting and affecting each other.
[0032] Specifically, the angle between the luminous surface of the second luminous element 320 and the horizontal plane is 18°, and the angle between the luminous surface of the third luminous element 330 and the horizontal plane is 20°.
[0033] Reference Figure 2 In some embodiments of the present invention, a plurality of first light-emitting elements 310 are respectively located directly below a plurality of second reflectors 220, and the first light-emitting elements 310 are arranged vertically upward so that they can reflect light through the second reflectors 220. This allows the optical channels emitted by the first light-emitting elements 310 to intersect with the optical channels emitted by the second light-emitting elements 320 and the third light-emitting elements 330, thus avoiding the optical channels from intersecting and affecting each other.
[0034] Specifically, the light-emitting surface of the first light-emitting element 310 is horizontally positioned with respect to the horizontal plane, and the angle between the reflective surface of the second reflector 220 and the horizontal plane is 45°.
[0035] Reference Figure 2 and Figure 3In some embodiments of the present invention, four first reflectors 210 and four third light-emitting elements 330 are provided; two first reflectors 210 are arranged opposite to each other and spaced apart along a first horizontal direction, and are respectively a first reflective structure 211 and a second reflective structure 212 along the first horizontal direction; two third light-emitting elements 330 are arranged opposite to each other and spaced apart along a first horizontal direction, and are respectively a first light-emitting structure 331 and a second light-emitting structure 332 along the first horizontal direction; the first light-emitting structure 331 is inclined toward the second reflective structure 212, and the second light-emitting structure 332 is inclined toward the first reflective structure 211; the other two first reflectors 210 are arranged opposite to each other along a second horizontal direction. The first reflector 210 is set up and spaced apart, and along the second horizontal direction, it consists of a third reflector 213 and a fourth reflector 214. The other two third light-emitting elements 330 are set up opposite each other and spaced apart along the second horizontal direction, and along the second horizontal direction, they consist of a third light-emitting element 333 and a fourth light-emitting element 334. The third light-emitting element 333 is tilted toward the fourth reflector 214, and the fourth light-emitting element 334 is tilted toward the third reflector 213. This allows the light to be reflected by the first reflector 210, and the optical channels emitted by the third light-emitting element 330 and the second light-emitting element 320 can be staggered to avoid the optical channels crossing and affecting each other.
[0036] The first horizontal direction and the second horizontal direction are set perpendicular to each other.
[0037] Specifically, the first reflective structure 211 and the second reflective structure 212 are symmetrically arranged and spaced apart, and the third reflective structure 213 and the fourth reflective structure 214 are symmetrically arranged and spaced apart.
[0038] Reference Figure 2 In some embodiments of the present invention, the distance between the first reflector 210 and the vertical axis is less than the distance between the second reflector 220 and the vertical axis, so as to facilitate the third light-emitting element 330 to illuminate the first reflector 210 and avoid other structures from affecting the optical path of the third light-emitting element 330.
[0039] The distance between the second light-emitting element 320 and the vertical axis is less than the distance between the first light-emitting element 310 and the vertical axis, and greater than the distance between the third light-emitting element 330 and the vertical axis. This allows the optical channels emitted by the first light-emitting element 310, the second light-emitting element 320, and the third light-emitting element 330 to intersect, avoiding the optical channels from crossing and affecting each other. It also prevents other structures from affecting the optical paths of the second light-emitting element 320 and the third light-emitting element 330.
[0040] Specifically, the four first reflectors 210 are arranged opposite each other and symmetrically, the four second reflectors 220 are arranged opposite each other and symmetrically, the four first light-emitting elements 310 are arranged opposite each other and symmetrically, the four second light-emitting elements 320 are arranged opposite each other and symmetrically, and the four third light-emitting elements 330 are arranged opposite each other and symmetrically.
[0041] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the mounting base 100 includes a first annular base 110, a second annular base 120, and a third annular base 130 stacked sequentially in a vertical direction; the middle portions of the first annular base 110, the second annular base 120, and the third annular base 130 are all vertically connected; a plurality of first reflectors 210 and a plurality of second reflectors 220 are disposed on the inner sidewall of the first annular base 110; the top edge of the second annular base 120 is provided with a plurality of vertically connected channels, which are spaced apart from the middle portion of the second annular base 120; the upper portions of the plurality of channels are respectively disposed opposite to the plurality of second reflectors 220; a plurality of first light-emitting elements 310 are disposed at the top of the third annular base 130 and are respectively disposed opposite to the lower portions of the plurality of channels.
[0042] The first reflector 210 and the second reflector 220 are both mounted on the first annular base 110. When it is necessary to install, remove and replace the first reflector 210 and the second reflector 220, the first annular base 110 can be directly removed to expose the first reflector 210 and the second reflector 220, thus reducing the difficulty of replacement.
[0043] By providing a channel on the second annular base 120, the first light-emitting element 310 emits light upward from the channel, thus preventing the light emitted by the first light-emitting element 310 from affecting the second light-emitting element 320 and the third light-emitting element 330.
[0044] The first light-emitting element 310 is located at the top of the third annular base 130 to reduce the difficulty of installing and removing the first light-emitting element 310.
[0045] Reference Figure 1 and Figure 2In some embodiments of the present invention, the mounting base 100 further includes a fourth annular base 140 and a fifth annular base 150 stacked sequentially in a vertical direction; the fourth annular base 140 is disposed at the bottom end of the third annular base 130; the middle portions of the fourth annular base 140 and the fifth annular base 150 are both vertically connected; a plurality of second light-emitting elements 320 are inclinedly disposed on the inner sidewall of the fourth annular base 140, and a plurality of third light-emitting elements 330 are inclinedly disposed on the inner sidewall of the fifth annular base 150, so that the second light-emitting elements 320 and the third light-emitting elements 330 can be easily installed after the fourth annular base 140 and the fifth annular base 150 are disassembled.
[0046] Specifically, the first annular seat 110, the second annular seat 120, the third annular seat 130, the fourth annular seat 140, and the fifth annular seat 150 are stacked sequentially and fixedly connected to each other by bolts. The middle of the first annular seat 110, the second annular seat 120, the third annular seat 130, the fourth annular seat 140, and the fifth annular seat 150 are all vertically connected to form the first cavity 101.
[0047] Reference Figure 1 , Figure 4 and Figure 5 In some embodiments of the present invention, a base 400, a camera detection module, and a third reflector 500 are also included. The base 400 is disposed at the bottom end of the mounting base 100. The base 400 is provided with an opening 410 and a second cavity 420. The upper part of the second cavity 420 extends to the top end of the base 400 and is connected to the first cavity 101. The opening 410 is disposed at the side end of the base 400 and is connected to the second cavity 420. The third reflector 500 is obliquely disposed in the second cavity 420 and is disposed opposite to the upper part of the second cavity 420 and the opening 410. The camera detection module is located on one side of the base 400 and is disposed facing the opening 410.
[0048] The detection end of the camera detection module can face the third reflector 500 so that the workpiece to be inspected located in the first cavity 101 can be visually inspected through the third reflector 500.
[0049] Reference Figures 4 to 6In some embodiments of the present invention, a connector, a fixing member 600, and a strip 700 are also included; the fixing member 600 is detachably connected to the camera detection module; one end of the strip 700 is connected to the bottom end of the base 400, and the fixing member 600 is movably disposed at the top end of the strip 700 in a direction toward or away from the base 400; the fixing member 600 is provided with a connecting groove 610, and the strip 700 is provided with a connecting hole 710; the connecting hole 710 and the connecting groove 610 are disposed opposite to each other, and the connector is detachably inserted through the connecting hole 710 and the connecting groove 610.
[0050] The fixture 600 is movable on the strip 700 to adjust the distance between the camera detection module and the third reflector 500.
[0051] Specifically, after the fastener 600 moves to a predetermined position on the strip 700, the connector can pass through the connecting groove 610 and the connecting hole 710 to fix the position of the fastener 600 on the strip 700.
[0052] Specifically, multiple connection holes 710 are provided and arranged at intervals to better fit the fastener 600.
[0053] Specifically, the fastener 600 has a first fixing plate and a second fixing plate. The opposite end faces of the first fixing plate and the second fixing plate are provided with arc-shaped grooves. The camera detection module is disposed between the first fixing plate and the second fixing plate. The position of the camera detection module is defined by the arc-shaped grooves, and the position between the first fixing plate and the second fixing plate can be fixed by the bolt structure.
[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A visual inspection device with multi-angle illumination, characterized in that, include: The mounting base is provided with a first cavity that extends vertically through it; The reflective assembly includes a first reflector and a second reflector; the height of the second reflector is lower than the height of the first reflector; multiple first and second reflectors are provided, and they are all arranged around a vertical axis on the inner wall of the first cavity, and are all inclined downwards. The light-emitting component includes a first light-emitting element, a second light-emitting element, and a third light-emitting element; the height of the first light-emitting element is lower than the height of the second reflector; the height of the second light-emitting element is lower than the height of the first light-emitting element and higher than the height of the third light-emitting element; multiple first light-emitting elements, second light-emitting elements, and third light-emitting elements are provided, and all are arranged around the vertical axis on the inner wall of the first cavity; multiple first light-emitting elements are respectively arranged facing multiple second reflectors, and the second light-emitting elements are arranged inclined upwards; multiple third light-emitting elements are respectively arranged facing multiple first reflectors.
2. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, The angle between the reflecting surface of the first reflector and the horizontal plane is smaller than the angle between the reflecting surface of the second reflector and the horizontal plane.
3. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, The angle between the luminous surface of the second luminous element and the horizontal plane is greater than the angle between the luminous surface of the first luminous element and the horizontal plane, and less than the angle between the luminous surface of the third luminous element and the horizontal plane.
4. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, The first light-emitting elements are respectively located directly below the second reflectors, and the first light-emitting elements are arranged vertically upward.
5. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, Four of each of the first reflectors and the third light-emitting elements are provided. Two of the first reflectors are arranged opposite to each other and spaced apart along a first horizontal direction, and are respectively a first reflective structure and a second reflective structure along the first horizontal direction. Two of the third light-emitting elements are arranged opposite to each other and spaced apart along the first horizontal direction, and are respectively a first light-emitting structure and a second light-emitting structure along the first horizontal direction. The first light-emitting structure is inclined toward the second reflective structure, and the second light-emitting structure is inclined toward the first reflective structure. Two more of the first reflectors are arranged opposite to each other and spaced apart along a second horizontal direction, and are respectively a third reflective structure and a fourth reflective structure along the second horizontal direction. Two more of the third light-emitting elements are arranged opposite to each other and spaced apart along the second horizontal direction, and are respectively a third light-emitting structure and a fourth light-emitting structure along the second horizontal direction. The third light-emitting structure is inclined toward the fourth reflective structure, and the fourth light-emitting structure is inclined toward the third reflective structure. The first horizontal direction and the second horizontal direction are perpendicular to each other.
6. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, The distance between the first reflector and the vertical axis is less than the distance between the second reflector and the vertical axis, and / or the distance between the second light-emitting element and the vertical axis is less than the distance between the first light-emitting element and the vertical axis, and greater than the distance between the third light-emitting element and the vertical axis.
7. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, The mounting base includes a first annular base, a second annular base, and a third annular base stacked sequentially in a vertical direction; the middle portions of the first annular base, the second annular base, and the third annular base are all vertically connected; a plurality of first reflectors and a plurality of second reflectors are disposed on the inner sidewall of the first annular base; the top edge of the second annular base is provided with a plurality of vertically connected channels, the channels being spaced apart from the middle portion of the second annular base; the upper portions of the plurality of channels are respectively disposed opposite to the plurality of second reflectors; a plurality of first light-emitting elements are disposed at the top of the third annular base and are respectively disposed opposite to the lower portions of the plurality of channels.
8. The visual inspection device with multi-angle illumination according to claim 7, characterized in that, The mounting base further includes a fourth annular base and a fifth annular base arranged in sequence along the vertical direction; the fourth annular base is located at the bottom end of the third annular base; the middle parts of the fourth annular base and the fifth annular base are both arranged vertically; a plurality of second light-emitting elements are inclinedly arranged on the inner sidewall of the fourth annular base; a plurality of third light-emitting elements are inclinedly arranged on the inner sidewall of the fifth annular base.
9. The visual inspection device with multi-angle illumination according to claim 1, characterized in that, It also includes a base, a camera detection module, and a third reflector; the base is disposed at the bottom end of the mounting base; the base has an opening and a second cavity; the upper part of the second cavity extends to the top end of the base and communicates with the first cavity; the opening is disposed at the side end of the base and communicates with the second cavity; the third reflector is obliquely disposed in the second cavity and is disposed opposite to the upper part of the second cavity and the opening; the camera detection module is located on one side of the base and faces the opening.
10. The visual inspection device with multi-angle illumination according to claim 9, characterized in that, It also includes a connector, a fastener, and a strip; the fastener is detachably connected to the camera detection module; one end of the strip is connected to the bottom end of the base, and the fastener is movably disposed at the top end of the strip in a direction closer to or further away from the base; the fastener is provided with a connecting groove, and the strip is provided with a connecting hole; the connecting hole and the connecting groove are arranged opposite to each other, and the connector is detachably inserted through the connecting hole and the connecting groove.