Adsorption platform and optical automatic detection system

Abstract

The utility model relates to optical detection technical field discloses a kind of adsorption platform and optical automatic detection system, and adsorption platform includes the panel and bottom plate made of colorless organic glass, panel is excavated gas groove, and slot bottom is provided with adsorption hole;Bottom plate is buckled with gas groove to form gas cavity, bottom plate is provided with gas pipe hole, for connecting suction equipment with gas cavity, control gas flow in gas cavity to change vacuum state in gas cavity;Panel is sealed between the four surrounding groove top of gas groove and bottom plate by glass cement, and panel and bottom plate are fixed by only being pasted with glass cement set in the four surrounding thereof, without using large-area gluing filling, while maintaining the structural stability of adsorption platform, without producing the phenomenon of uneven or glue bubble of glue surface;Optical automatic detection system uses this adsorption platform, guarantees optical imaging effect, reduces the possibility of misjudgment, reduces artificial redetermination workload.

Description

Technical Field

[0001] This utility model relates to the field of optical detection technology, and in particular to an adsorption platform and an automatic optical detection system. Background Technology

[0002] With the increasing integration and sophistication of electronic components, the demands for inspection speed and efficiency are also rising. Driven by the need for zero-defect inspection, AOI (Automatically Optical Inspection) technology has emerged. AOI, as the name suggests, is a method of automatic inspection that uses optical systems for imaging. It is also one of many automatic image sensing inspection technologies, with accurate and high-quality optical images and processing being its core technical aspects.

[0003] AOI (Analog and Imaging Inspection) works by using camera technology to output the reflected light intensity of the object being inspected as a quantitative grayscale value. This grayscale value is then compared with that of a standard image to analyze, determine, and classify defects. Its greatest advantages are saving manpower, reducing costs, increasing production efficiency, standardizing inspection processes, eliminating human error, ensuring the stability, repeatability, and accuracy of inspection results, and enabling timely detection of product defects to guarantee shipment quality. The working logic of AOI inspection can be divided into four stages: image acquisition (optical scanning and data collection), data processing (data classification and conversion), image analysis (feature extraction and template comparison), and defect reporting (defect size, type classification, etc.).

[0004] A work platform is required during the image acquisition stage to place and fix the workpiece to be tested. In existing technologies, the design and manufacturing methods of the work platform include fabricating a base plate and a panel: the panel typically has 14 U-shaped grooves, with 6-7 air holes extending from each U-shaped groove; the base plate and panel are then glued together. During the manufacturing process, uneven glue application and air bubbles are easily found between the base plate and panel, resulting in poor adhesion and affecting optical imaging. This can lead to false positives during visual inspection of the workpiece, increasing the total time required for manual re-inspection. Utility Model Content

[0005] The purpose of this invention is to provide an adsorption platform and an automatic optical detection system, which has a stable structure, can ensure optical imaging effect, reduce the possibility of false detection, and reduce the workload of manual re-judgment.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An adsorption platform, comprising:

[0008] A panel, wherein an air groove is provided on the panel and an adsorption hole is provided at the bottom of the air groove;

[0009] The base plate is fastened to the panel to form an air cavity relative to the opening direction of the air groove. The panel is sealed with glass glue between itself and the base plate at the top of the air groove around its perimeter. An air pipe hole is provided on the base plate to connect the air extraction device to the air cavity. Both the panel and the base plate are made of colorless plexiglass.

[0010] As an optional technical solution for the adsorption platform, a workpiece adsorption position is provided on the side of the panel opposite to the opening direction of the air groove, the placement surface of the workpiece to be inspected is used to cover the workpiece adsorption position, and the adsorption hole is located on the workpiece adsorption position.

[0011] As an optional technical solution for the adsorption platform, a plurality of air tube holes are provided at preset distances on the workpiece adsorption position.

[0012] As an optional technical solution for the adsorption platform, the panel is provided with multiple workpiece adsorption positions.

[0013] As an optional technical solution for the adsorption platform, glass glue is provided between the air groove and the base plate to divide the air chamber into multiple non-interconnected air chambers. Each air chamber is arranged in a one-to-one correspondence with the workpiece adsorption position, and each air pipe hole is arranged in a one-to-one correspondence with the air chamber.

[0014] As an optional technical solution for the adsorption platform, the tracheal hole is configured as L-shaped, with one end of the tracheal hole opened on the side of the base plate opposite to the air groove, and the other end of the tracheal hole opened on the side of the base plate.

[0015] As an optional technical solution for the adsorption platform, the outer ring of the base plate is provided with multiple mounting holes.

[0016] As an optional technical solution for the adsorption platform, the mounting holes include blind holes and through holes. The blind holes are provided on the side of the base plate, and the extension direction of the blind holes is perpendicular to the side of the base plate. The through holes are provided on the portion of the side of the base plate that protrudes from the side of the panel, and the extension direction of the through holes is parallel to the stacking direction of the panel and the base plate.

[0017] An optical automatic detection system includes an adsorption platform as described in any of the above.

[0018] As an optional technical solution for the optical automatic inspection system, the optical automatic inspection system also includes a light source, which is located at the bottom of the base plate and faces the panel.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides an adsorption platform and an optical automatic detection system. The adsorption platform includes a panel and a base plate made of colorless plexiglass. Air grooves are carved into the panel, and adsorption holes are formed at the bottom of the grooves. The base plate, relative to the opening direction of the air grooves, is fastened to the panel to form an air cavity. An air pipe hole is formed on the base plate, connecting a vacuum pump to the air cavity. The adsorption platform can control the gas flow within the air cavity through the air pipe hole connected to the vacuum pump. The side of the panel facing away from the opening direction of the air grooves is used to place and selectively fix the workpiece to be adsorbed. The placement surface of the workpiece covers all the adsorption holes. The vacuum state within the air cavity can be changed by the vacuum pump. The panel is sealed to the base plate at the top of the air grooves around the perimeter using silicone sealant. The panel and base plate are bonded and fixed using silicone sealant only around their perimeter, avoiding large-area filling. This maintains the structural stability of the adsorption platform while preventing uneven sealant surfaces or air bubbles. The optical automatic inspection system uses this adsorption platform to ensure the optical imaging effect of the system, reduce the possibility of false detection, and reduce the workload of manual re-judgment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the adsorption platform provided by this utility model;

[0022] Figure 2 This is a cross-sectional view of the tracheal opening of the adsorption platform of this utility model;

[0023] Figure 3 This is a cross-sectional view of the adsorption platform of this utility model at the perforation.

[0024] Figure 4 This is a cross-sectional view of the adsorption platform of this utility model in another direction;

[0025] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0026] In the picture:

[0027] 100. Panel; 110. Air chamber; 120. Adsorption hole;

[0028] 200, base plate; 210, tracheal hole; 220, blind hole; 230, perforation;

[0029] 300. Glass glue. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figures 1 to 5As shown, this utility model discloses an adsorption platform and an optical automatic detection system including the adsorption platform. The adsorption platform includes a panel 100 and a base plate 200 made of colorless organic glass. An air groove is carved into the panel 100, and adsorption holes 120 are formed at the bottom of the groove. The base plate 200 is fastened to the panel 100 relative to the opening direction of the air groove to form an air cavity. An air pipe hole 210 is formed on the base plate 200, which connects a vacuum device to the air cavity. The adsorption platform can control the gas flow state within the air cavity through the air pipe hole 210 connected to the vacuum device. The side of the panel 100 facing away from the opening direction of the air groove is used to place and selectively fix the workpiece to be adsorbed. The placement surface of the workpiece covers all the adsorption holes 120. The vacuum state within the air cavity can be changed by the vacuum device. The panel 100 is located around the top of the air tank and is sealed to the base plate 200 with glass glue 300. The panel 100 and the base plate 200 are bonded and fixed by glass glue 300 only around their perimeter, without using large-area glue filling. This maintains the structural stability of the adsorption platform and avoids uneven glue surface or glue bubbles, ensuring the optical imaging effect of the optical automatic detection system using the adsorption platform, reducing the possibility of false detection, and reducing the workload of manual re-judgment.

[0035] In existing technologies, panel light sources are typically installed inside the work platform. These source lights generate significant heat during operation, and due to thermal expansion and contraction, the U-shaped groove on the panel 100 can crack, leading to a reduced lifespan and increased manufacturing costs for the work platform. To address this issue, the optical automatic inspection system incorporates a light source located at the bottom of the base plate 200 and facing the panel 100, replacing its central placement. Since the light source is farther from the panel 100, and both the base plate 200 and the panel 100 are made of colorless acrylic glass, the light source's effectiveness is unaffected, and the structure of the panel 100 is not damaged.

[0036] In this embodiment, a workpiece adsorption position is provided on the side of the panel 100 away from the opening direction of the air groove. The placement surface of the workpiece to be inspected can cover the workpiece adsorption position. The adsorption hole 120 is located inside the workpiece adsorption position, which can ensure that the workpiece to be inspected completely covers the adsorption hole 120 and ensure the adsorption effect. At the same time, a conspicuous mark can be set on the workpiece adsorption position to facilitate quick alignment and placement of the workpiece to be inspected.

[0037] Specifically, multiple air pipe holes 210 are arranged at preset distances on the workpiece adsorption position. The multiple air pipe holes 210 are uniformly arranged in a rectangular array, which can effectively improve the adsorption capacity of the adsorption platform.

[0038] To further improve the working efficiency of the adsorption platform and the optical automatic inspection system, multiple workpiece adsorption positions can be set on the panel 100. By adding a strip of glass glue 300 between the air groove and the base plate 200, the air chamber is divided into multiple non-interconnected air chambers 110. Each air chamber 110 is set with a workpiece adsorption position corresponding to another, and each air pipe hole 210 is set with a corresponding air chamber 110. Multiple workpieces to be inspected can be adsorbed and inspected at one time.

[0039] Specifically, such as Figure 2 As shown, the tracheal port 210 is L-shaped, with one end located on the side of the base plate 200 opposite to the air tank, and the other end located on the side of the base plate 200. The tracheal port 210 allows for connection of an air extraction device to the side of the adsorption platform via an air pipe, without affecting the flatness of the bottom surface. The bottom surface of the adsorption platform can accommodate a light source that fully irradiates the surface of the panel 100 without interfering with the air extraction device.

[0040] Optionally, the outer ring of the base plate 200 is provided with multiple mounting holes for fixing the adsorption platform.

[0041] For example, mounting holes are formed around the perimeter of the base plate 200. These mounting holes can be divided into blind holes 220 and through holes 230. A blind hole 220 is provided on one side of the base plate 200, and the extension direction of the blind hole 220 is perpendicular to the side of the base plate 200. A through hole 230 is provided on the portion of the side of the base plate 200 that protrudes from the side of the panel 100, and the extension direction of the through hole 230 is parallel to the stacking direction of the panel 100 and the base plate 200. The above two types of mounting holes can accommodate different installation methods and installation positions, expanding the application range of the adsorption platform.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adsorption platform, characterized in that, include: A panel (100) is provided with an air groove, and an adsorption hole (120) is provided at the bottom of the air groove; A base plate (200) is fastened to the panel (100) in the direction of the opening of the air groove to form an air cavity. Glass glue (300) is sealed between the panel (100) and the base plate (200) at the top of the air groove. An air pipe hole (210) is provided on the base plate (200) for connecting the air extraction device and the air cavity. Both the panel (100) and the base plate (200) are made of colorless organic glass.

2. The adsorption platform of claim 1, wherein, The panel (100) has a workpiece adsorption position on the side opposite to the opening direction of the air groove. The placement surface of the workpiece to be inspected is used to cover the workpiece adsorption position, and the adsorption hole (120) is located on the workpiece adsorption position.

3. The adsorption platform of claim 2, wherein, Multiple air duct holes (210) are provided at preset distances on the workpiece adsorption position.

4. The adsorption platform of claim 2, wherein, The panel (100) is provided with a plurality of workpiece adsorption positions.

5. The adsorption platform of claim 4, wherein, A glass glue (300) is provided between the air groove and the base plate (200) to divide the air cavity into multiple non-communicating air chambers (110). Each air chamber (110) is provided in a one-to-one correspondence with the workpiece adsorption position, and each air pipe hole (210) is provided in a one-to-one correspondence with the air chamber (110).

6. The adsorption platform of claim 1, wherein, The tracheal hole (210) is L-shaped, with one end of the tracheal hole (210) located on the side of the base plate (200) opposite to the air groove, and the other end of the tracheal hole (210) located on the side of the base plate (200).

7. The adsorption platform of claim 1, wherein, The outer ring of the base plate (200) is provided with multiple mounting holes.

8. The adsorption platform of claim 7, wherein, The mounting holes include blind holes (220) and through holes (230). The blind holes (220) are provided on the side of the base plate (200), and the extension direction of the blind holes (220) is perpendicular to the side of the base plate (200). The through holes (230) are provided on the portion of the side of the base plate (200) that protrudes from the side of the panel (100), and the extension direction of the through holes (230) is parallel to the stacking direction of the panel (100) and the base plate (200).

9. An optical automated inspection system characterized by, Includes the adsorption platform as described in any one of claims 1-8.

10. The optical automatic inspection system according to claim 9, characterized in that, The optical automatic inspection system also includes a light source located at the bottom of the base plate (200) facing the panel (100).

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