Fan light source for machine vision inspection

By designing a fan-shaped light source for machine vision inspection with an arc structure, the problem of uneven illumination was solved, the inspection effect of arc-shaped workpieces was improved, the service life of the light strip was extended, and the installation and disassembly process of the light source was simplified.

CN224471934UActive Publication Date: 2026-07-07JIANGSU QID SPACE CIRCULATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU QID SPACE CIRCULATION TECHNOLOGY CO LTD
Filing Date
2025-11-20
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing machine vision inspection lighting devices suffer from uneven illumination when inspecting curved workpieces, resulting in unsatisfactory inspection results and failure to detect defects.

Method used

A fan-shaped light source for machine vision inspection was designed, featuring an arc-shaped housing and light strip, and equipped with heat sinks, heat-conducting plates, focusing lenses, acrylic plates, and heat dissipation holes. Combined with a structure of slots, plugs, buckles, and grooves, it achieves uniform illumination and convenient installation of the light source.

Benefits of technology

It achieves uniform illumination of curved workpieces, improves the detection effect, extends the service life of the light strip through the heat dissipation structure, and simplifies the installation and disassembly process of the light source.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses machine vision detection technical field's machine vision detection fan -shaped light source, including shell and fin, the inside fixed fin of shell, one end of fin is installed with the heat conduction plate, one side fixed lamp area of heat conduction plate, the inside of shell is equipped with the condenser lens, the detachable connection of condenser lens and shell, one side fixed of shell is with the acrylic plate, the surface embedding of shell is equipped with the heat dissipation hole, one side detachable connection of shell has the sealing plate, through the heat dissipation hole of being equipped with the fin, heat conduction plate, lamp area, condenser lens, acrylic plate and so on, realized the function to the arc workpiece visual inspection, because shell and lamp area are arc structure, make the illumination can even irradiation on the surface of arc workpiece, effectively improved the detection effect of workpiece.
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Description

Technical Field

[0001] This utility model belongs to the field of machine vision inspection technology, specifically relating to a fan-shaped light source for machine vision inspection. Background Technology

[0002] Machine vision uses machines to perform measurements and judgments, replacing human eyes. The light source is a crucial factor affecting machine vision systems, directly determining the quality of image data and the effectiveness of applications. Commonly used light sources include incandescent lamps, fluorescent lamps, mercury lamps, and sodium lamps.

[0003] Existing light sources for machine vision inspection still have some shortcomings. Most light source devices can only arrange the light source horizontally and can only emit parallel light. However, in the inspection of curved workpieces, the position of the light source relative to the curved workpiece is different, resulting in uneven illumination on the curved surface. This leads to unsatisfactory inspection results, often resulting in poor uniformity of the inspection image or unclear defect features, and failing to highlight the defects of curved workpieces. Therefore, we propose a fan-shaped light source for machine vision inspection. Utility Model Content

[0004] The purpose of this invention is to provide a fan-shaped light source for machine vision inspection, so as to solve the problem mentioned in the background art of defects in the inspection of arc-shaped workpieces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fan-shaped light source for machine vision inspection, comprising a housing and a heat sink, wherein the heat sink is fixed inside the housing, a heat-conducting plate is installed at one end of the heat sink, a light strip is fixed on one side of the heat-conducting plate, a focusing lens is provided inside the housing, the focusing lens and the housing are detachably connected, an acrylic plate is fixed on one side of the housing, heat dissipation holes are embedded on the surface of the housing, and a sealing plate is detachably connected to one side of the housing.

[0006] Preferably, one end of the outer casing is provided with a slot, and one end of the sealing plate is fixed with a plug, the plug and the slot being fixed by interlocking.

[0007] Preferably, a storage groove is embedded on one side of the insert, and a first spring is installed inside the storage groove.

[0008] Preferably, one end of the first spring is fixed with a buckle, the buckle and the storage groove are slidably connected, and a slot is embedded on one side of the slot. The buckle and the slot are fixed by engaging.

[0009] Preferably, a top plate is slidably connected inside the slot, and a second spring is installed on one side of the top plate.

[0010] Preferably, the slot, insert, buckle and groove are provided in two sets, located at both ends of the sealing plate, and the outer shell has an arc-shaped structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The device features a heat sink, heat-conducting plate, light strip, focusing lens, acrylic plate, and heat dissipation holes, enabling visual inspection of curved workpieces. The curved structure of the outer shell and light strip allows for uniform illumination of the curved workpiece surface, effectively improving the inspection results.

[0013] 2. When installing the sealing plate, the insert block is inserted into the slot, and the buckle is squeezed into the storage groove by the inner wall of the slot. At the same time, the first spring is compressed. When the buckle moves to the position of the slot, the buckle will be locked into the slot under the reaction force of the first spring, thus completing the fixing of the sealing plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of section A;

[0017] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Outer shell; 2. Heat sink; 3. Heat conduction plate; 4. LED strip; 5. Focusing lens; 6. Acrylic plate; 7. Heat dissipation hole; 8. Slot; 9. Insert block; 10. Storage slot; 11. First spring; 12. Buckle; 13. Slot; 14. Top plate; 15. Second spring; 16. Sealing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4This utility model provides a technical solution: a fan-shaped light source for machine vision inspection, including a housing 1 and a heat sink 2. The heat sink 2 is fixed inside the housing 1, and a heat-conducting plate 3 is installed at one end of the heat sink 2. A light strip 4 is fixed to one side of the heat-conducting plate 3. A focusing lens 5 is provided inside the housing 1, and the focusing lens 5 and the housing 1 are detachably connected. An acrylic plate 6 is fixed to one side of the housing 1, and heat dissipation holes 7 are embedded on the surface of the housing 1. A sealing plate 16 is detachably connected to one side of the housing 1. Through the heat sink 2, heat-conducting plate 3, light strip 4, focusing lens 5, acrylic plate 6, and heat dissipation holes 7, the function of visual inspection of curved workpieces is realized. Since the housing 1 and the light strip 4 are curved, the light can be evenly irradiated on the surface of the curved workpiece, effectively improving the inspection effect of the workpiece. When the light strip 4 is working, it will generate heat. The heat-conducting plate 3, the heat sink 2, and the heat dissipation holes 7 can effectively dissipate heat and improve the service life of the light strip 4.

[0021] Specifically, one end of the outer casing 1 is provided with a slot 8, and one end of the sealing plate 16 is fixed with a plug 9. The plug 9 and the slot 8 are fixed by interlocking. The provided slot 8 and plug 9 facilitate the installation and removal of the sealing plate 16.

[0022] Specifically, a storage groove 10 is embedded on one side of the insert block 9, and a first spring 11 is installed inside the storage groove 10. The storage groove 10 and the first spring 11 are used to control the buckle 12.

[0023] Specifically, a buckle 12 is fixed to one end of the first spring 11. The buckle 12 and the storage groove 10 are slidably connected. A slot 13 is embedded on one side of the slot 8. The buckle 12 and the slot 13 are fixed by snapping together. When the sealing plate 16 is installed, the insert block 9 is inserted into the inside of the slot 8. The buckle 12 is squeezed into the inside of the storage groove 10 by the inner wall of the slot 8, and at the same time, the first spring 11 is compressed. When the buckle 12 moves to the position of the slot 13, the buckle 12 will be snapped into the inside of the slot 13 under the reaction force of the first spring 11, thus completing the fixing of the sealing plate 16.

[0024] Specifically, a top plate 14 is slidably connected inside the slot 8, and a second spring 15 is installed on one side of the top plate 14. The top plate 14 and the second spring 15 facilitate the disassembly of the sealing plate 16, making it easier to maintain the light strip 4.

[0025] Specifically, there are two sets of slots 8, inserts 9, buckles 12 and slots 13, located at both ends of the sealing plate 16, and the outer shell 1 has an arc-shaped structure.

[0026] In this embodiment, the presence of a heat sink 2, a heat-conducting plate 3, a light strip 4, a focusing lens 5, an acrylic plate 6, and heat dissipation holes 7 enables visual inspection of curved workpieces. Because the outer shell 1 and the light strip 4 are curved, the light can be evenly irradiated onto the surface of the curved workpiece, effectively improving the inspection effect. When the light strip 4 is in operation, it generates heat; the heat-conducting plate 3, the heat sink 2, and the heat dissipation holes 7 effectively dissipate heat, extending the lifespan of the light strip 4. When installing the sealing plate 16, the insert 9 is inserted into the slot 8. The buckle 12, squeezed by the inner wall of the slot 8, retracts into the receiving groove 10, simultaneously compressing the first spring 11. When the buckle 12 moves to the position of the slot 13, it engages with the slot 13 under the reaction force of the first spring 11, thus fixing the sealing plate 16. The top plate 14 and the second spring 15 facilitate the disassembly of the sealing plate 16, making maintenance of the light strip 4 more convenient.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan-shaped light source for machine vision inspection, comprising a housing (1) and a heat sink (2), characterized in that: The heat sink (2) is fixed inside the outer shell (1). A heat-conducting plate (3) is installed at one end of the heat sink (2). A light strip (4) is fixed on one side of the heat-conducting plate (3). A condensing lens (5) is provided inside the outer shell (1). The condensing lens (5) and the outer shell (1) are detachably connected. An acrylic plate (6) is fixed on one side of the outer shell (1). Heat dissipation holes (7) are embedded on the surface of the outer shell (1). A sealing plate (16) is detachably connected to one side of the outer shell (1).

2. The fan-shaped light source for machine vision inspection according to claim 1, characterized in that: One end of the outer shell (1) is fitted with a slot (8), and one end of the sealing plate (16) is fixed with a plug (9). The plug (9) and the slot (8) are fixed by interlocking.

3. The fan-shaped light source for machine vision inspection according to claim 2, characterized in that: A storage groove (10) is embedded on one side of the insert (9), and a first spring (11) is installed inside the storage groove (10).

4. The fan-shaped light source for machine vision inspection according to claim 3, characterized in that: One end of the first spring (11) is fixed with a buckle (12), the buckle (12) and the storage groove (10) are slidably connected, and a slot (13) is embedded on one side of the slot (8), the buckle (12) and the slot (13) are fixed by snapping.

5. The fan-shaped light source for machine vision inspection according to claim 4, characterized in that: The slot (8) is internally slidably connected to a top plate (14), and a second spring (15) is installed on one side of the top plate (14).

6. The fan-shaped light source for machine vision inspection according to claim 5, characterized in that: The slot (8), insert (9), buckle (12) and slot (13) are provided in two sets, located at both ends of the sealing plate (16), and the outer shell (1) is an arc-shaped structure.