A dedicated waterproof and dustproof visual imaging system

Abstract

This utility model discloses a dedicated waterproof and dustproof visual imaging system, relating to the field of visual recognition technology. It includes: an inner cavity with an interface for mounting a telecentric lens; a light source plate mounted within the inner cavity; a transparent light guide plate mounted within the inner cavity and covering the light source plate; an outer shell mounted outside the inner cavity; an air-passing and wire-passing block mounted within the inner cavity, comprising a first air pipe connector, a second air pipe connector, and a channel for passing wires; an air-blowing pipe connected to the bottom of the air-passing and wire-passing block; a camera; a telecentric lens connected to the camera and mounted at the interface within the inner cavity; and a point light source mounted on the telecentric lens. This utility model prevents water mist from adhering to the surface of the telecentric lens and the light source plate, prevents external water mist from entering the light source area, ensures light source brightness and image clarity, eliminates misidentification caused by cutting residue, and achieves miniaturization.

Description

Technical Field

[0001] This utility model relates to the field of visual recognition technology, specifically a dedicated waterproof and dustproof visual imaging system. Background Technology

[0002] In existing visual imaging systems, ring light sources are generally large in size with a hollow center. While this structure is suitable for conventional visual inspection, several problems arise when using such ring light sources on semiconductor cutting equipment. First, the completely hollow center means that during semiconductor cutting, a lot of water vapor will accumulate and adhere to the lens and light source. Water vapor on the lens directly affects camera image capture, and water vapor on the light source's LEDs reduces brightness, impacting product recognition. Second, the large size increases the size of the camera module, which is detrimental to the semiconductor industry's need for compact equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a dedicated waterproof and dustproof visual imaging system, which aims to solve the technical problems of traditional visual imaging systems having a large structural volume and water mist affecting the recognition of products.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A dedicated waterproof and dustproof visual imaging system, characterized in that it comprises:

[0006] An inner cavity, wherein the inner cavity is provided with an interface for mounting a telecentric lens;

[0007] A light source board, wherein the light source board is mounted in the inner cavity;

[0008] A transparent light guide plate is installed in the inner cavity and covers the light source plate;

[0009] An outer casing, which is installed on the outside of the inner cavity;

[0010] A venting and wire-passing block is installed in the inner cavity. The venting and wire-passing block is provided with a first air pipe connector, a second air pipe connector, and a channel for passing wires through.

[0011] An air blowing pipe is connected to the bottom of the air-passing wire block;

[0012] camera;

[0013] A telecentric lens, which is connected to the camera and installed at the interface of the inner cavity;

[0014] A point light source is mounted on the telecentric lens.

[0015] In a preferred embodiment, a first sealing ring is provided between the interface between the telecentric lens and the inner cavity.

[0016] In a preferred embodiment, a second sealing ring is provided between the outer casing and the inner cavity.

[0017] In a preferred embodiment, a third sealing ring is provided between the transparent light guide plate and the inner cavity.

[0018] In a preferred embodiment, a fourth sealing ring is provided between the transparent light guide plate and the outer casing.

[0019] In a preferred embodiment, the air-passing and wire-passing block is provided with a first channel and a second channel. The first channel connects the second air pipe connector to the interior of the inner cavity, and the second channel connects the first air pipe connector to the air blowing pipe.

[0020] In a preferred embodiment, a first sealing sleeve is provided in the channel for the wire to pass through the air-passing and wire-passing block, and the wire of the light source board is led out through the first sealing sleeve; a through hole is provided at the bottom of the inner cavity.

[0021] In a preferred embodiment, a second sealing sleeve is provided in the channel connecting the second air pipe connector and the inner cavity within the air-passing and wire-passing block.

[0022] In a preferred embodiment, the air blowing pipe is independently connected to the first air pipe connector via the air passage block.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] To solve the problem of water mist contamination, a multi-layered sealing structure is used to block water mist from entering the optical components in the cutting environment, preventing water mist from adhering to the surface of the telecentric lens and the light source board.

[0025] The positive pressure air curtain mechanism allows gas to exit through the second air pipe connector → inner cavity → bottom through hole, forming a downward airflow barrier to prevent external water mist from entering the light source area, thus ensuring the brightness of the light source and the clarity of the image.

[0026] To improve product identification reliability, an independent air blowing channel (first air pipe connector → air blowing pipe) directly cleans contaminants on the product surface, eliminating misidentification caused by cutting residue.

[0027] Miniaturization and functional integration are achieved through a modular and compact design (integrating the light source, air path, and sealing structure within the internal cavity), significantly reducing system size and meeting the space constraints of semiconductor equipment. The air passage and cable passage block simultaneously integrates dual air paths and cable sealing channels (first sealing sleeve and second sealing sleeve), simplifying the layout of external pipelines.

[0028] Enhanced lighting adaptability: The combination of a ring light source board and point light sources provides main illumination and local supplementary lighting, adapting to the identification needs of different parts of semiconductor products. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0031] Figure 3 This utility model Figure 2 A magnified structural diagram of part A;

[0032] In the diagram: 1. Inner cavity; 2. First sealing ring; 3. Second sealing ring; 4. Light source board; 5. Outer shell; 6. Transparent light guide plate; 7. Third sealing ring; 8. Fourth sealing ring; 9. Air blowing pipe; 10. Air and wire passing block; 11. First air pipe connector; 12. Second air pipe connector; 13. First sealing sleeve; 14. Second sealing sleeve; 15. Camera; 16. Telecentric lens; 17. Point light source. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1 to 3 ,

[0035] A dedicated waterproof and dustproof visual imaging system, characterized in that it comprises:

[0036] The inner cavity 1 is provided with an interface for mounting the telecentric lens 16;

[0037] Light source board 4 is installed in the inner cavity 1; it provides ring illumination brightness.

[0038] A transparent light guide plate 6 is installed in the inner cavity 1 and covers the light source plate 4, guiding the light emitted by the light source plate 4 to the product surface.

[0039] The outer shell 5 is installed on the outside of the inner cavity 1 and cooperates with the inner cavity 1 to form a protective outer shell.

[0040] Air passage and wire passage block 10 is installed in the inner cavity 1. Air passage and wire passage block 10 is provided with a first air pipe connector 11, a second air pipe connector 12 and a channel for passing wires through.

[0041] Air blowing pipe 9 is connected to the bottom of air passing and wire passing block 10, which blows air onto the product surface to clean contaminants;

[0042] Camera 15;

[0043] Telecentric lens 16, which is connected to camera 15 and installed at the interface of inner cavity 1;

[0044] Point light source 17 is mounted on telecentric lens 16 to provide auxiliary lighting for the details of the product.

[0045] A first sealing ring 2 is provided between the interface between the telecentric lens 16 and the inner cavity 1 to achieve a seal.

[0046] A second sealing ring 3 is provided between the outer casing 5 and the inner cavity 1 to achieve a seal.

[0047] A third sealing ring 7 is provided between the transparent light guide plate 6 and the inner cavity 1 to achieve a seal.

[0048] A fourth sealing ring 8 is provided between the transparent light guide plate 6 and the outer casing 5 to achieve a seal.

[0049] The air passage block 10 is provided with a first channel and a second channel. The first channel connects the second air pipe connector 12 to the inside of the inner cavity 1, and the second channel connects the first air pipe connector 11 to the air blowing pipe 9.

[0050] The passage for the wire to pass through the air-passing and wire-passing block 10 is provided with a first sealing sleeve 13, and the wire of the light source board 4 is led out through the first sealing sleeve 13; the bottom of the inner cavity 1 is provided with a through hole for gas to be discharged.

[0051] A second sealing sleeve 14 is provided in the channel connecting the second air pipe connector 12 and the inner cavity 1 inside the air-passing and wire-passing block 10.

[0052] The air blowing pipe 9 is independently connected to the first air pipe connector 11 via the air passing wire block 10.

[0053] The working mechanism of this utility model:

[0054] Waterproof and dustproof mechanism

[0055] Sealing and protection: The first to fourth sealing rings prevent water mist from entering from the joint between the telecentric lens 16 and the inner cavity 1;

[0056] Positive pressure air curtain: Gas is continuously discharged downward through the second air pipe connector 12 → air passage block 10 → inner cavity 1 → bottom through hole, forming a gas barrier that blocks external water mist.

[0057] Surface cleaning mechanism

[0058] An independent air path blows gas onto the product surface via the first air pipe connector 11 → air-passing wire block 10 → air blowing pipe 9 to remove adhering contaminants.

[0059] Lighting and Imaging

[0060] Main lighting: Light source board 4 emits light → transparent light guide plate 6 distributes light evenly → illuminates the product surface;

[0061] Auxiliary lighting: Point light source 17 provides local supplemental lighting;

[0062] Imaging: Camera 15 takes pictures of the cleaned product and identifies it through telecentric lens 16.

[0063] 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 dedicated waterproof and dustproof visual photographing system, characterized in that, include: The inner cavity (1) is provided with an interface for mounting a telecentric lens (16); A light source plate (4) is installed in the inner cavity (1); A transparent light guide plate (6) is installed in the inner cavity (1) and covers the light source plate (4); The outer casing (5) is installed on the outside of the inner cavity (1); Air passage and wire passage block (10), the air passage and wire passage block (10) is installed in the inner cavity (1), the air passage and wire passage block (10) is provided with a first air pipe connector (11), a second air pipe connector (12) and a channel for passing through the wire; An air blowing pipe (9) is connected to the bottom of the air passing and wire passing block (10); Camera (15); Telecentric lens (16), the telecentric lens (16) is connected to the camera (15) and installed at the interface of the inner cavity (1); A point light source (17) is mounted on the telecentric lens (16).

2. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: A first sealing ring (2) is provided between the interface between the telecentric lens (16) and the inner cavity (1).

3. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: A second sealing ring (3) is provided between the outer shell (5) and the inner cavity (1).

4. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: A third sealing ring (7) is provided between the transparent light guide plate (6) and the inner cavity (1).

5. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: A fourth sealing ring (8) is provided between the transparent light guide plate (6) and the outer casing (5).

6. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: The air passage block (10) is provided with a first channel and a second channel. The first channel connects the second air pipe connector (12) to the interior of the inner cavity (1), and the second channel connects the first air pipe connector (11) to the air blowing pipe (9).

7. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: The air-passing and wire-passing block (10) is provided with a first sealing sleeve (13) in the channel for passing the wire, and the wire of the light source board (4) is led out through the first sealing sleeve (13); the bottom of the inner cavity (1) is provided with a through hole.

8. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: A second sealing sleeve (14) is provided in the channel connecting the second air pipe connector (12) and the inner cavity (1) inside the air-passing and wire-passing block (10).

9. The dedicated waterproof and dustproof visual photographing system according to claim 1, characterized in that: The air blowing pipe (9) is independently connected to the first air pipe connector (11) via the air passing wire block (10).

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