Tunnel type luminosity detection light source

By designing a tunnel-type photometric detection light source and using diffuse reflectors and control modules for sectional lighting, the detection challenges of CCD vision inspection systems under different lighting requirements have been solved. This enables effective detection of 2.5D defects on product surfaces and edges, improving the detection effect and practicality.

CN223883448UActive Publication Date: 2026-02-06DONGGUAN WORDOP AUTOMATION TECH
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Patent Information

Application Number
CN202520397189.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-08
Publication Date
2026-02-06
Estimated Expiration
2035-03-08

AI Technical Summary

Technical Problem

Existing CCD vision inspection systems are unable to effectively handle products with different lighting requirements due to poor light source illumination, especially when it comes to 2.5D and edge defects on the product surface.

Method used

A tunnel-type photometric detection light source was designed. A diffuse reflector is used to diffusely reflect the light emitted by the light source component. The product observation area is divided into four product observation units by a control module. By combining LED and infrared light sources, the lighting area can be selected according to product requirements. Combined with the adjustment device and detection lens of the CCD vision inspection system, stereoscopic photography can be achieved.

Benefits of technology

It improves the detection effect of CCD vision inspection system on 2.5D surface and edge defects of products, meets the lighting requirements of different products, and enhances the three-dimensionality and practicality of inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a tunnel type luminosity detection light source, which comprises a diffuse reflection light source module, a heat dissipation shell, a control module and a charge coupled device (CCD) visual inspection system, the heat dissipation shell covers the diffuse reflection light source module, a control module placement area is formed between the diffuse reflection light source module and the heat dissipation shell, the control module is arranged in the control module placement area, and the CCD visual inspection system is arranged in the control module placement area. The CCD visual detection system is adjustably arranged at the upper end of the heat dissipation shell, the diffuse reflection light source module comprises a diffuse reflection cover and a light source assembly, the diffuse reflection cover is of a semi-cylindrical structure and covers the upper end of the light source assembly, and a product observation area is formed between the diffuse reflection cover and the light source assembly. The light source assembly comprises a bottom plate, a plurality of LED light source sets and a plurality of infrared light sources, the LED light source sets and the infrared light sources are distributed on the bottom plate in a tunnel shape, the middle of the heat dissipation shell and the middle of the diffuse reflection cover are provided with observation holes for a CCD visual inspection system to observe a product observation area, and practicability is high.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detecting light source, specifically relates to a tunnel type photometric detection light source. BACKGROUND

[0002] At present, after product production and processing, it needs to be detected, with the continuous development of the times, product quality detection changes from original manual detection to detection through CCD vision detection system, however, the existing CCD vision detection system still has the problem that the light source cannot select the light area and cannot effectively handle the 2.5D and edge defects on the surface of the product when encountering various different light requirements.

[0003] In order to solve this problem, we design a tunnel type photometric detection light source, so as to solve this problem. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems existing in the prior art, the utility model provides a tunnel type photometric detection light source, which solves the problem that the existing CCD vision detection system cannot select the light area and cannot effectively handle the 2.5D and edge defects on the surface of the product when encountering various different light requirements due to poor light effect of the light source.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A tunnel type photometric detection light source, which comprises a diffuse reflection light source module, a heat dissipation shell, a control module and a CCD vision detection system, the heat dissipation shell is covered on the diffuse reflection light source module, a control module installation area is formed between the diffuse reflection light source module and the heat dissipation shell, the control module is installed at the control module installation area, the CCD vision detection system can be adjusted and arranged at the upper end of the heat dissipation shell, the diffuse reflection light source module comprises a diffuse reflection cover and a light source assembly, the diffuse reflection cover is in a semicylindrical structure, the diffuse reflection cover is covered on the upper end of the light source assembly, a product observation area is formed between the diffuse reflection cover and the light source assembly, the light source assembly comprises a bottom plate, a plurality of LED light source groups and a plurality of infrared light sources, a plurality of the LED light source groups and a plurality of the infrared light sources are distributed in a tunnel shape on the bottom plate, the middle part of the heat dissipation shell and the middle part of the diffuse reflection cover are provided with an observation hole for the CCD vision detection system to observe the product observation area.

[0007] As a further elaboration of the above technical scheme:

[0008] In the above technical solution, the plurality of LED light source groups and the plurality of infrared light sources are fixed on the bottom plate, the plurality of LED light source groups include a first LED light source group, a second LED light source group, a third LED light source group and a fourth LED light source group, and the plurality of infrared light sources include a first infrared light source and a second infrared light source.

[0009] In the above technical solution, the first LED light source group and the second LED light source group are arranged side by side on the same side, the first infrared light source is arranged outside the first LED light source group and the second LED light source group, the third LED light source group and the fourth LED light source group are arranged side by side on the same side, and the second infrared light source is arranged outside the third LED light source group and the fourth LED light source group.

[0010] In the above technical solution, the product observation area is composed of four product observation units, the first LED light source group and the first infrared light source form a first product observation unit, the second LED light source group and the second infrared light source form a second product observation unit, the third LED light source group and the second infrared light source form a third product observation unit, and the fourth LED light source group and the second infrared light source form a fourth product observation unit.

[0011] In the above technical solution, the first LED light source group, the second LED light source group, the third LED light source group and the fourth LED light source group each include not less than two LED white light strips, and the first infrared light source and the second infrared light source each include an infrared light strip.

[0012] In the above technical solution, the observation hole includes a first observation hole arranged on the heat dissipation shell and a second observation hole arranged on the diffuse reflection cover.

[0013] In the above technical solution, the first observation hole is a circular observation hole, and the second observation hole is a long strip-shaped observation hole.

[0014] In the above technical solution, the CCD visual detection system includes a support plate, an adjusting device and a detection lens, the support plate is arranged at the upper end of the heat dissipation shell, the adjusting device is adjustably arranged on the support plate, the detection lens is installed on the adjusting device, and the detection lens is located directly above the first observation hole and the second observation hole.

[0015] In the above technical solution, a support column is arranged between the heat dissipation shell and the bottom plate.

[0016] In the above technical solution, heat dissipation fans are arranged on both sides of the heat dissipation shell.

[0017] The beneficial effects of the present application are as follows:

[0018] The utility model discloses a reasonable design, novel structure, through adopting the light of light source assembly that the light of diffuse reflection cover is emitted is diffused reflection after the light is hit on the surface of product, thereby make CCD vision detection system more have stereoscopic feeling when carrying out the photographing to product, and then solve the problem of 2.5D and edge defect of product surface, at the same time, through adopting control module to control light source assembly, make product observation area divide into four product observation units, according to the light of product demand selection, select corresponding product observation unit and light to the different area of product, make the light effect better, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is partial structure schematic diagram of the utility model;

[0020] Figure 2 It is structure schematic diagram after removing the heat dissipation shell of the utility model;

[0021] Figure 3 It is structure schematic diagram of diffuse reflection light source module of the utility model;

[0022] Figure 4 It is schematic diagram of product observation area distribution of the utility model;

[0023] Figure 5 It is whole structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0024] The utility model is explained in detail below in combination with specific embodiment and drawing.

[0025] Please refer to Figures 1 to 5 The embodiment provides a tunnel type light intensity detection light source, which comprises a diffuse reflection light source module 100, a heat dissipation shell 200, a control module 300 and a CCD vision detection system 400, the heat dissipation shell 200 is covered on the diffuse reflection light source module 100, a control module placement area is formed between the diffuse reflection light source module 100 and the heat dissipation shell 200, the control module 300 is installed at the control module placement area, the CCD vision detection system 400 can be adjusted and arranged at the upper end of the heat dissipation shell 200, the diffuse reflection light source module 100 comprises a diffuse reflection cover 11 and a light source assembly 12, the diffuse reflection cover 11 is in half cylindrical structure, the diffuse reflection cover 11 is covered at the upper end of the light source assembly 12, a product observation area is formed between the diffuse reflection cover 11 and the light source assembly 12, the light source assembly 12 comprises a bottom plate 121, a plurality of LED light source groups and a plurality of infrared light sources, the plurality of LED light source groups and the plurality of infrared light sources are distributed in tunnel shape on the bottom plate 121, the middle part of the heat dissipation shell 200 and the middle part of the diffuse reflection cover 11 are provided with an observation hole 500 for the CCD vision detection system 400 to observe the product observation area.

[0026] It should be noted that in this way, the light emitted by the light source assembly 12 is diffused by the diffuse reflection cover 11 and then hits the surface of the product, so that the CCD vision detection system 400 has a better three-dimensional effect when taking pictures of the product, thereby solving the problem of 2.5D and edge defects on the surface of the product. At the same time, by controlling the light source assembly 12 through the control module 300, the product observation area is divided into four product observation units, and according to the lighting needs of the product, the corresponding product observation unit is selected to light different areas of the product, so that the lighting effect is better, and the control module placement area can effectively store and fix the control module 300, thereby reducing the occupied space.

[0027] In order to realize the function of selecting different lighting effects, in some optional embodiments, a plurality of LED light source groups and a plurality of infrared light sources are fixed on the bottom plate 121, the plurality of LED light source groups include a first LED light source group 122, a second LED light source group 123, a third LED light source group 124 and a fourth LED light source group 125, and the plurality of infrared light sources include a first infrared light source 126 and a second infrared light source 127.

[0028] In some optional embodiments, the first LED light source group 122 and the second LED light source group 123 are arranged side by side on the same side, the first infrared light source 126 is arranged outside the first LED light source group 122 and the second LED light source group 123, the third LED light source group 124 and the fourth LED light source group 125 are arranged side by side on the same side, and the second infrared light source 127 is arranged outside the third LED light source group 124 and the fourth LED light source group 125.

[0029] In some optional embodiments, the product observation area is composed of four product observation units, the first LED light source group 122 and the first infrared light source 126 form a first product observation unit, the second LED light source group 123 and the second infrared light source 127 form a second product observation unit, the third LED light source group 124 and the second infrared light source 127 form a third product observation unit, and the fourth LED light source group 125 and the second infrared light source 127 form a fourth product observation unit.

[0030] In some optional embodiments, the first LED light source group 122, the second LED light source group 123, the third LED light source group 124 and the fourth LED light source group 125 each include not less than two white light LED light bars, and the first infrared light source 126 and the second infrared light source 127 each include an infrared light bar.

[0031] It should be noted that the first LED light source group 122, the second LED light source group 123, the third LED light source group 124, the fourth LED light source group 125, the first infrared light source 126 and the second infrared light source 127 divide the product observation area into four product observation units. According to the detection lighting needs of the product, the white light bar or the infrared light bar of the product observation unit is turned on or off by the control module 300, so that each product observation unit can be used in cooperation or independently lit, thereby meeting the lighting needs of different products, making the CCD vision detection system 400 more stereoscopic when taking pictures of the product, and thereby solving the problems of 2.5D and edge defects on the surface of the product.

[0032] In order to realize that the CCD vision detection system 400 can observe the situation in the product observation area, in some optional embodiments, the observation hole 500 includes a first observation hole 51 arranged on the heat dissipation shell 200 and a second observation hole 52 arranged on the diffuse reflection cover 11.

[0033] In some optional embodiments, the first observation hole 51 is a circular observation hole, and the second observation hole 52 is a long strip-shaped observation hole.

[0034] In order to realize that the CCD vision detection system can better observe the situation in the product observation area, in some optional embodiments, the CCD vision detection system 400 includes a support plate 41, an adjusting device 42 and a detection lens 43. The support plate 41 is arranged at the upper end of the heat dissipation shell 200, the adjusting device 42 is arranged on the support plate 41 and can be adjusted, and the detection lens 43 is installed on the adjusting device 42. The detection lens 43 is located directly above the first observation hole 51 and the second observation hole 52.

[0035] It should be noted that the detection lens 43 can be adjusted in height on the support plate 41 by using the adjusting device 42. Specifically, by turning the adjusting knob of the adjusting device 42, the moving seat of the adjusting device 42 slides on the slide rail of the support plate 41 through the sliding groove, so as to adjust the height of the detection lens 43.

[0036] In order to make the heat dissipation shell more solid and durable, in some optional embodiments, a support column 600 is arranged between the heat dissipation shell 200 and the bottom plate 121, so that the structure between the heat dissipation shell 200 and the bottom plate 121 is more stable.

[0037] In some optional embodiments, heat dissipation fans 700 and heat dissipation holes are arranged on both sides of the heat dissipation shell 200, which can effectively discharge the heat generated when the control module 300 and the light source assembly 12 work, thereby prolonging the service life.

[0038] In the description of the utility model, unless another definite provision and limitation, the term "installation", "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two element internal communication or two element's mutual action relation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0039] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, and the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0041] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the utility model, but not to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A tunnel photometric detection light source, characterized by, It includes diffuse reflection light source module, heat dissipation shell, control module and CCD vision detection system, the heat dissipation shell covers the diffuse reflection light source module, the control module is installed in the control module installation area between the diffuse reflection light source module and the heat dissipation shell, the CCD vision detection system can be adjusted and is arranged on the upper end of the heat dissipation shell, the diffuse reflection light source module includes diffuse reflection cover and light source assembly, the diffuse reflection cover is semicylindrical structure, the diffuse reflection cover covers the upper end of the light source assembly, the diffuse reflection cover and the light source assembly form product observation area, the light source assembly includes bottom plate, a plurality of LED light source groups and a plurality of infrared light sources, a plurality of the LED light source groups and a plurality of the infrared light sources are distributed in the tunnel on the bottom plate, the middle part of the heat dissipation shell and the middle part of the diffuse reflection cover are provided with observation holes for the CCD vision detection system to observe the product observation area.

2. A tunnel photometric detection light source according to claim 1, characterized in that A plurality of the LED light source groups and a plurality of the infrared light sources are fixed on the bottom plate, a plurality of LED light source groups include first LED light source group, second LED light source group, third LED light source group and fourth LED light source group, a plurality of the infrared light sources include first infrared light source and second infrared light source.

3. A tunnel photometric detection light source according to claim 2, wherein, The first LED light source group and the second LED light source group are arranged side by side on the same side, the first infrared light source is arranged outside the first LED light source group and the second LED light source group, the third LED light source group and the fourth LED light source group are arranged side by side on the same side, and the second infrared light source is arranged outside the third LED light source group and the fourth LED light source group.

4. A tunnel photometric detection light source according to claim 3, wherein, The product observation area is composed of four product observation units, the first LED light source group and the first infrared light source form the first product observation unit, the second LED light source group and the second infrared light source form the second product observation unit, the third LED light source group and the second infrared light source form the third product observation unit, and the fourth LED light source group and the second infrared light source form the fourth product observation unit.

5. A tunnel photometric detection light source according to claim 4, wherein, The first LED light source group, the second LED light source group, the third LED light source group and the fourth LED light source group each include not less than two LED white light strips, and the first infrared light source and the second infrared light source each include an infrared light strip.

6. A tunnel photometric detection light source according to claim 1, wherein The observation hole includes a first observation hole arranged on the heat dissipation shell and a second observation hole arranged on the diffuse reflection cover.

7. A tunnel photometric detection light source according to claim 6, wherein, The first observation hole is a circular observation hole, and the second observation hole is a long strip-shaped observation hole.

8. A tunneled photometric detection light source according to claim 7, characterized in that, The CCD vision detection system includes a support plate, an adjusting device and a detection lens, the support plate is arranged on the upper end of the heat dissipation shell, the adjusting device is adjustably arranged on the support plate, and the detection lens is installed on the adjusting device and located directly above the first observation hole and the second observation hole.

9. A tunnel photometric detection light source according to claim 1, wherein, The heat dissipation shell and the bottom plate are provided with a support column.

10. The tunnel photometric detection light source of claim 1, wherein, The heat dissipation shell is provided with heat dissipation fans on both sides.