360-degree detection shadowless light source device

Abstract

The utility model relates to the technical field of shadowless light sources, and provides a 360-degree detection shadowless light source device, which comprises a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate form a cavity, and the cavity is used for moving a piece to be detected; the first diffuse reflection layer is arranged on the inner side surface of the first arc-shaped plate; the second diffuse reflection layer is arranged on the inner side surface of the second arc-shaped plate; the first light source is arranged in the cavity and irradiates a first diffuse reflection layer on the first arc-shaped plate, and the first diffuse reflection layer reflects irradiation light of the first light source to the second arc-shaped plate; the first light source and / or the second light source are / is blocked by the light barrier and do not directly irradiate the image capturing area, so that the to-be-detected piece is moved to the image capturing area and is not directly irradiated by the first light source and the second light source; instead, the to-be-detected piece is irradiated by the reflected light of the first diffuse reflection layer and the second diffuse reflection layer, so that the to-be-detected piece can be illuminated by 360 degrees, and the detection cannot be influenced by too bright irradiation.

Description

Technical Field

[0001] The utility model relates to the technical field of shadowless light sources, and particularly relates to a 360-degree detection shadowless light source device. Background Art

[0002] The principle of the existing shadowless light source is based on the rectilinear propagation of light. If there is an area that light cannot irradiate, it will be a shadow area, while the shadowless light source uses multiple light sources to ensure that there is light everywhere.

[0003] When detecting a test object, due to the uneven shape and irregular falling motion of the test object, in order to ensure effective discrimination of whether the test object is qualified during detection, 360-degree shadowless light is required for irradiation; however, when using multiple light sources in the prior art for irradiation, it is difficult to ensure that all concave and convex positions are completely irradiated, and when the light source directly irradiates, the irradiation intensity is relatively large, which will cause the test object to be too bright and unable to achieve the detection effect. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a 360-degree detection shadowless light source device that can prevent excessive light intensity.

[0005] To solve the above problems, the utility model provides the following technical solutions:

[0006] A 360-degree detection shadowless light source device, which includes: a first arc plate;

[0007] A second arc plate, the first arc plate and the second arc plate form a chamber for the movement of the test piece to be detected;

[0008] A first diffuse reflection layer is provided on the inner side of the first arc plate;

[0009] A second diffuse reflection layer is provided on the inner side of the second arc plate;

[0010] A first light source is arranged in the chamber and irradiates the first diffuse reflection layer on the first arc plate, and the first diffuse reflection layer reflects the irradiation light of the first light source towards the second arc plate;

[0011] A second light source is arranged in the chamber and irradiates the second diffuse reflection layer on the second arc plate, and the second diffuse reflection layer reflects the irradiation light of the second light source towards the first arc plate;

[0012] At least one detection window is provided on the first arc plate or the second arc plate for a camera to take pictures of the test piece in the imaging area in the chamber.

[0013] In some embodiments, the first diffuse reflection layer reflects the illumination light of the first light source to form reflected light that illuminates the imaging area;

[0014] The second diffuse reflection layer reflects the illumination light of the second light source to form reflected light that illuminates the imaging area.

[0015] In some embodiments, the shadowless light source device further includes a light blocking structure for blocking the direct illumination of the first light source and / or the second light source on the imaging area.

[0016] In some embodiments, the device further includes a feeding part and a discharging part, and the workpiece to be detected passes through the imaging area during the process of moving from the feeding part to the discharging part.

[0017] In some embodiments, the arc diameter of the first arc-shaped plate is greater than that of the second arc-shaped plate; there is a gap on each side between the first arc-shaped plate and the second arc-shaped plate;

[0018] The feeding part and the discharging part are respectively located at the gaps between the first arc-shaped plate and the second arc-shaped plate. The workpiece to be detected enters through the gap where the feeding part is located and exits through the gap where the discharging part is located.

[0019] In some embodiments, the first diffuse reflection layer is a diffuse reflection coating sprayed inside the first arc-shaped plate, and the second diffuse reflection layer is a diffuse reflection coating sprayed inside the second arc-shaped plate.

[0020] In some embodiments, the detection window includes a first imaging hole and a second imaging hole;

[0021] The first imaging hole is provided on the first arc-shaped plate;

[0022] The second imaging hole is provided on the second arc-shaped plate;

[0023] A camera is placed at the first imaging hole and the second imaging hole to take pictures of the workpiece to be detected.

[0024] In some embodiments, the first light source includes a first lamp board and a second lamp board; the second light source includes a third lamp board and a fourth lamp board; the shadowless light source device further includes a first lamp board seat and a second lamp board seat;

[0025] The first lamp board seat and the second lamp board seat are respectively installed on both sides of the first arc-shaped plate or the second arc-shaped plate;

[0026] The first lamp board is installed on the side of the first lamp board seat close to the first arc-shaped plate;

[0027] The second light board is installed on one side of the second light board seat close to the first arc-shaped board;

[0028] The third light board is installed on one side of the first light board seat close to the second arc-shaped board;

[0029] The fourth light board is installed on one side of the second light board seat close to the second arc-shaped board.

[0030] In some embodiments, the first light board, the second light board, the third light board, and the fourth light board are strip-shaped light boards;

[0031] The first light board and the second light board are arranged axially along the first arc-shaped board; the third light board and the fourth light board are arranged axially along the second arc-shaped board.

[0032] In some embodiments, the light blocking structure includes two light blocking plates, one of the light blocking plates is installed on the first light board seat, and the other light blocking plate is installed on the second light board seat.

[0033] The beneficial effect of the present utility model is that: the first light source and / or the second light source are blocked by the light blocking plate and do not directly irradiate the imaging area, so that the workpiece to be detected is not directly irradiated by the first light source and the second light source when it is moved to the imaging area; instead, after the workpiece to be detected is moved to the imaging area, the workpiece to be detected is irradiated by the reflected light of the first diffuse reflection layer and the second diffuse reflection layer, which can not only ensure that the workpiece to be detected is illuminated 360 degrees, but also will not affect the detection due to over-illumination. Description of the Drawings

[0034] Figure 1 It is a three-dimensional view of the shadowless light source device of the present utility model;

[0035] Figure 2 It is an exploded view of the shadowless light source device of the present utility model;

[0036] Figure 3 It is a front view cross-sectional view of the shadowless light source device of the present utility model;

[0037] Figure 4 It is a usage state diagram of the shadowless light source device of the present utility model.

[0038] Reference Signs:

[0039] 100, shadowless light source device; 110, first arc-shaped board; 120, second arc-shaped board; 130, first diffuse reflection layer; 140, second diffuse reflection layer; 150, first light source; 160, second light source; 170, first imaging hole; 180; second imaging hole; 190, first light board seat; 200, second light board seat; 210, light blocking plate; 220, workpiece to be detected; 230, end plate; 240, feeding part; 250 discharging part; 260, imaging area; 300, camera;

[0040] 151. First lamp board; 152. Second lamp board;

[0041] 161. Third lamp board; 162. Fourth lamp board. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0044] For the convenience of describing the first direction, the second direction, and the third direction in the embodiments of the present application, the first direction is the left - right direction in the accompanying drawings, the second direction is the front - back direction in the accompanying drawings, and the third direction is the up - down direction in the accompanying drawings. Among them, the x - axis arrow direction is used as the "right" direction in the following text, the y - axis arrow direction is used as the "up" direction in the following text, and the z - axis arrow direction is used as the "back" direction in the following text. In the actual application of the present application, this is not limited thereto.

[0045] This embodiment provides a 360-degree detection shadowless light source device 100, which includes a first arc plate 110; a second arc plate 120. The first arc plate 110 and the second arc plate 120 form a chamber for the movement of the workpiece to be detected 220. A first diffuse reflection layer 130 is provided on the inner side of the first arc plate 110; a second diffuse reflection layer 140 is provided on the inner side of the second arc plate 120. A first light source 150 is disposed in the chamber and irradiates the first diffuse reflection layer 130 on the first arc plate 110. The first diffuse reflection layer 130 reflects the irradiated light of the first light source 150 towards the second arc plate 120. A second light source 160 is disposed in the chamber and irradiates the second diffuse reflection layer 140 on the second arc plate 120. The second diffuse reflection layer 140 reflects the irradiated light of the second light source 160 towards the first arc plate 110. That is to say, when the first light source 150 irradiates the first diffuse reflection layer 130 and the second light source 160 irradiates the second diffuse reflection layer 140, the light diffusely reflected by the first diffuse reflection layer 130 and the second diffuse reflection layer 140 illuminates the chamber at any angle of 360 degrees; and an imaging area 260 of the workpiece to be detected 220 is formed through diffuse reflection. The 360-degree illumination achieved through diffuse reflection can solve the problem that the workpiece to be detected 220 cannot be completely irradiated due to unevenness, resulting in inaccurate detection.

[0046] In this embodiment, at least one detection window is provided on the first arc plate 110 or the second arc plate 120 for the camera 300 to photograph the workpiece to be detected 220 in the imaging area 260 in the chamber. When the workpiece to be detected 220 is moved into the chamber and to the imaging area 260, the workpiece to be detected 220 is photographed through the detection window, which is convenient for judging the quality of the workpiece to be detected 220.

[0047] In this embodiment, the reflected light formed by the first diffuse reflection layer 130 reflecting the irradiated light of the first light source 150 illuminates the imaging area 260; the reflected light formed by the second diffuse reflection layer 140 reflecting the irradiated light of the second light source 160 illuminates the imaging area 260. The shadowless light source device further includes a light blocking structure for blocking the direct irradiation of the first light source 150 and / or the second light source 160 on the imaging area 260. Using the reflected light of the first diffuse reflection layer 130 and the second diffuse reflection layer 140 to illuminate the imaging area 260, and the light blocking structure prevents the first light source 150 and / or the second light source 160 from directly irradiating the imaging area 260, so that while the imaging area 260 is illuminated, it can also prevent the first light source 150 and / or the second light source 160 from directly irradiating the workpiece to be detected 220 in the imaging area 260, resulting in the workpiece to be detected 220 in the imaging area 260 being too bright and affecting the detection.

[0048] In this embodiment, the shadowless light source device 100 further includes a feeding part 240 and a discharging part 250. The workpiece to be detected 220 passes through the imaging area 260 during the process of moving from the feeding part 240 to the discharging part 250. That is to say, when it is necessary to detect the workpiece to be detected 220, only need to put the workpiece to be detected 220 into the feeding part 240. The workpiece to be detected 220 enters the imaging area 260 through the feeding part 240, and then the camera 300 takes pictures of the workpiece to be detected 220. After that, the workpiece to be detected 220 is taken out through the discharging port, and the operation is simple and convenient.

[0049] In this embodiment, the arc diameter of the first arc plate 110 is larger than that of the second arc plate 120; there is a gap on each side between the first arc plate 110 and the second arc plate 120. The feeding part 240 and the discharging part 250 are respectively located at the gaps between the first arc plate 110 and the second arc plate 120. The workpiece to be detected 220 enters through the gap where the feeding part 240 is located, and the workpiece to be detected 220 exits through the gap where the discharging part 250 is located. By adopting that the diameter of the first arc plate 110 is larger than that of the second arc plate 120, gaps are formed on both sides of the first arc plate 110 and the second arc plate 120, and there is no need to additionally set up the feeding part 240 and the discharging part 250, which is easier to process and use.

[0050] In this embodiment, the first diffuse reflection layer 130 is a diffuse reflection coating sprayed inside the first arc plate 110, and the second diffuse reflection layer 140 is a diffuse reflection coating sprayed inside the second arc plate 120. The diffuse reflection coating used is diffuse reflection white paint. By spraying the diffuse reflection white paint, the luminous efficiency is improved, glare or light spots are eliminated, and good light color consistency is ensured.

[0051] In this embodiment, the detection window includes a first imaging hole 170 and a second imaging hole 180. The first imaging hole 170 is provided on the first arc plate 110; the second imaging hole 180 is provided on the second arc plate 120. The camera 300 is placed at the first imaging hole 170 and the second imaging hole 180 to take pictures of the workpiece to be detected 220. By adopting that the first imaging hole 170 is provided on the first arc plate 110; the second imaging hole 180 is provided on the second arc plate 120, and then the camera 300 takes pictures of the workpiece to be detected 220 through the first imaging hole 170 and the second imaging hole 180, so that the circumferential side of the workpiece to be detected 220 is photographed, and it is easier to judge the quality of the workpiece to be detected 220.

[0052] As Figure 3 shown, in this embodiment, the first light source 150 includes a first lamp board 151 and a second lamp board 152; the second light source 160 includes a third lamp board 161 and a fourth lamp board 162. By adopting that both the first light source 150 and the second light source 160 are composed of two lamp boards, the illumination brightness can be higher. At the same time, when irradiating the diffuse reflection layer, more reflected light can be obtained, ensuring the brightness of the imaging area 260.

[0053] In this embodiment, the shadowless light source device 100 further includes a first lamp board seat 190 and a second lamp board seat 200. The first lamp board seat 190 and the second lamp board seat 200 are respectively installed on both sides of the first arc-shaped plate 110 or the second arc-shaped plate 120; the first lamp board 151 is installed on one side of the first lamp board seat 190 close to the first arc-shaped plate 110; the second lamp board 151 is installed on one side of the second lamp board seat 200 close to the first arc-shaped plate 110; the third lamp board 161 is installed on one side of the first lamp board seat 190 close to the second arc-shaped plate 120; the fourth lamp board 162 is installed on one side of the second lamp board seat 200 close to the second arc-shaped plate 120. By adopting the installation method on both sides of the first lamp board seat 190 and the second lamp board seat 200, when the lamp boards irradiate the first diffuse reflection layer 130 and the second diffuse reflection layer 140, the light intensity at any position of the first diffuse reflection layer 130 and the second diffuse reflection layer 140 irradiated by the lamp boards is similar, ensuring that when the workpiece 220 to be detected is detected, the brightness on the workpiece 220 to be detected is similar, and preventing the problem that the inconsistent brightness affects the observation of the workpiece 220 to be detected.

[0054] In this embodiment, the first lamp board 151, the second lamp board 152, the third lamp board 161 and the fourth lamp board 162 are strip-shaped lamp boards; the strip-shaped lamp boards are LED lamp boards, and the first lamp board 151 and the second lamp board 152 are arranged along the axial direction of the first arc-shaped plate 110; the third lamp board 161 and the fourth lamp board 162 are arranged along the axial direction of the second arc-shaped plate 120. By using strip-shaped lamp boards as the lamp boards, the light intensity in the axial direction of the first diffuse reflection layer 130 on the first arc-shaped plate 110 and the second diffuse reflection layer 140 on the second arc-shaped plate 120 irradiated by the lamp boards is the same, further ensuring that the brightness when the workpiece 220 to be detected is irradiated is similar, and preventing the problem that the inconsistent brightness affects the observation of the workpiece 220 to be detected.

[0055] In this embodiment, the light shielding structure includes two light shielding plates 210, one of the light shielding plates 210 is installed on the first lamp board seat 190, and the other light shielding plate 210 is installed on the second lamp board seat 200. The light shielding plates block the first light source 150 and / or the second light source 160 from directly irradiating the imaging area 260, and can avoid the problem that when imaging, the workpiece 220 to be detected is too bright due to direct illumination of the light, resulting in the camera 300 being unable to capture the desired image.

[0056] In this embodiment, the shadowless light source device 100 further includes two end plates 230, and the first arc-shaped plate 110 and the second arc-shaped plate 120 are installed on the two end plates 230. The end plates 230 ensure the fixation of the first arc-shaped plate 110 and the second arc-shaped plate 120.

[0057] In summary, the present utility model provides a 360-degree detection shadowless light source device. Under the block of the light shielding plate, the first light source and / or the second light source do not directly irradiate the imaging area, so that the workpiece to be detected is not directly irradiated by the first light source and the second light source when it is moved to the imaging area. Instead, after the workpiece to be detected is moved to the imaging area, it is irradiated by the reflected light of the first diffuse reflection layer and the second diffuse reflection layer, which can not only ensure that the workpiece to be detected is illuminated 360 degrees, but also will not affect the detection due to over-illumination.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A 360-degree detection shadowless light source device, characterized in that, Comprising: A first arc-shaped plate; A second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate forming a chamber for the movement of the component to be detected; A first diffuse reflection layer provided on the inner side of the first arc-shaped plate; A second diffuse reflection layer provided on the inner side of the second arc-shaped plate; A first light source disposed in the chamber, irradiating the first diffuse reflection layer on the first arc-shaped plate, and the first diffuse reflection layer reflecting the irradiated light of the first light source towards the second arc-shaped plate; A second light source disposed in the chamber, irradiating the second diffuse reflection layer on the second arc-shaped plate, and the second diffuse reflection layer reflecting the irradiated light of the second light source towards the first arc-shaped plate; At least one detection window provided on the first arc-shaped plate or the second arc-shaped plate for a camera to capture an image of the component to be detected within the imaging area in the chamber.

2. The 360-degree detection shadowless light source device according to claim 1, wherein: The reflected light formed by the first diffuse reflection layer reflecting the irradiated light of the first light source illuminates the imaging area; The reflected light formed by the second diffuse reflection layer reflecting the irradiated light of the second light source illuminates the imaging area.

3. The 360-degree detection shadowless light source device according to claim 1, wherein: The shadowless light source device further includes a light blocking structure for blocking the first light source and / or the second light source from directly irradiating the imaging area.

4. The 360-degree detection shadowless light source device according to claim 1, wherein: The device further includes a feeding part and a discharging part, and the component to be detected passes through the imaging area during the process of moving from the feeding part to the discharging part.

5. The 360-degree detection shadowless light source device according to claim 4, characterized in that: The arc diameter of the first arc-shaped plate is greater than that of the second arc-shaped plate; there is a gap on each of the two sides between the first arc-shaped plate and the second arc-shaped plate; The feeding part and the discharging part are respectively located at the gaps between the first arc-shaped plate and the second arc-shaped plate, and the component to be detected enters through the gap where the feeding part is located and exits through the gap where the discharging part is located.

6. The 360-degree detection shadowless light source device according to claim 1, characterized in that: The first diffuse reflection layer is a diffuse reflection coating sprayed inside the first arc-shaped plate, and the second diffuse reflection layer is a diffuse reflection coating sprayed inside the second arc-shaped plate.

7. The 360-degree detection shadowless light source device according to claim 1, characterized in that: The detection window includes a first imaging hole and a second imaging hole; The first imaging hole is provided on the first arc-shaped plate; The second imaging hole is provided on the second arc-shaped plate; The camera is placed at the first imaging hole and the second imaging hole to capture an image of the component to be detected.

8. The 360-degree detection shadowless light source device according to claim 3, wherein: The first light source includes a first lamp board and a second lamp board; the second light source includes a third lamp board and a fourth lamp board; the shadowless light source device further includes a first lamp board seat and a second lamp board seat; The first lamp board seat and the second lamp board seat are respectively installed on both sides of the first arc-shaped plate or the second arc-shaped plate; The first lamp board is installed on the side of the first lamp board seat close to the first arc-shaped plate; The second lamp board is installed on the side of the second lamp board seat close to the first arc-shaped plate; The third lamp board is installed on the side of the first lamp board seat close to the second arc-shaped plate; The fourth lamp board is installed on the side of the second lamp board seat close to the second arc-shaped plate.

9. The 360-degree detection shadowless light source device according to claim 8, wherein: The first light board, the second light board, the third light board, and the fourth light board are strip-shaped light boards; The first light board and the second light board are arranged along the axial direction of the first arc-shaped plate; the third light board and the fourth light board are arranged along the axial direction of the second arc-shaped plate.

10. The 360-degree detection shadowless light source device according to claim 8, characterized in that: The light blocking structure includes two light blocking plates, one of the light blocking plates is installed on the first light board seat, and the other light blocking plate is installed on the second light board seat.

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