TWM651718U - Automatic visual detection device for foreign matter in hole wall - Google Patents

Abstract

An automatic visual inspection device for foreign matter in a hole wall includes a backing plate, at least one light source and at least one image capturing device. The backing plate has a bearing surface, and an object to be detected can be placed on the bearing surface. The object to be detected has at least one perforation. The light generated by the light source can be projected into the perforation of the object to be detected, and the image capture device can capture the image of the perforation of the object to be detected. The perforation has an entrance end and an exit end. The entrance end is closer to the light source and the image capture device than the exit end. An unobstructed area is formed at the exit end of the perforation, so that the exit end of the perforation is connected to the outside without obstruction (no background). Article). As a result, the photo background is optimized so that the image inside the hole wall is clearly visible, which facilitates identification by inspection personnel at the back-end verification and repair station and prevents defective products from flowing out.

Description

Automatic visual detection device for foreign matter in hole wall

The present invention relates to an automatic visual inspection device, in particular an automatic visual inspection device that can be used to detect foreign matter in the hole wall.

Automatic visual inspection (AVI) equipment is a kind of computer vision inspection equipment. It mainly uses image sensors to detect the appearance of objects. It is highly efficient, simple and convenient, so it is suitable for product quality inspection at the production site. It can Inspect the appearance and color of the product. Automatic visual inspection (AVI, Automated Visual Inspection) equipment has been used to detect foreign matter on the hole wall. However, when existing automatic visual inspection equipment is used to detect foreign matter on the hole wall, a red background strip is usually set on the bottom side of the hole. It is easy to cause unrecognition and detection failure. For example, if there is ink in the hole, it is easy to be unrecognizable. Therefore, it is difficult to effectively prevent defective products from flowing out, and it will increase the cost of manual processing afterwards.

The technical problem to be solved by this creation is to provide an automatic visual detection device for foreign matter in the hole wall in view of the shortcomings of the existing technology. The photo background is optimized to make the image in the hole wall clearly visible, so as to facilitate the identification of inspection personnel at the back-end verification and repair station, which can effectively To prevent defective products from flowing out.

In order to solve the above technical problems, the present invention provides an automatic visual inspection device for foreign matter in the hole wall, including: a backing plate, the backing plate has a bearing surface, the bearing surface can be placed with an object to be detected, and the object to be detected has at least one Perforation; at least one light source, the light source faces the perforation of the object to be detected, and the light generated by the light source can be projected into the perforation of the object to be detected; and at least one image capture device, the image capture device faces the object to be detected The image capture device can capture an image of the perforation of the object to be detected; wherein the perforation has an inlet end and an outlet end, and the inlet end and the outlet end are respectively located at opposite ends of the perforation, and the perforation The perforations penetrate through the inlet end and the outlet end respectively to the opposite sides of the object to be detected. The inlet end is closer to the light source and the image capture device than the outlet end. An unobstructed area is formed at the outlet end of the perforation. The outlet end of the perforation is connected to the outside.

Preferably, the bearing surface is located on the bottom surface of the backing plate.

Preferably, there are multiple light sources, and the light sources are respectively arranged above and below the backing plate, and can respectively project illumination light from above and below the backing plate. The object to be inspected has two perforations, There are two light sources corresponding to each perforation, and the two light sources are respectively located on both sides of the perforation.

Preferably, the backing plate is provided with at least one through hole, so that the light source disposed above the backing plate can project light downward through the through hole to illuminate the object to be detected located below the backing plate. perforation.

Preferably, there are two image capturing devices, the two image capturing devices are respectively arranged above and below the backing plate, and the two image capturing devices respectively correspond to the two through holes of the object to be detected, The images of the two perforations of the object to be detected can be captured from above and below the backing plate respectively.

In order to solve the above technical problems, the invention also provides an automatic visual detection device for foreign matter in the hole wall, including: a backing plate, the backing plate has a bearing surface, and the bearing surface can be placed with an object to be detected, and the object to be detected has at least a perforation; at least one light source, which faces the perforation of the object to be detected, and the light generated by the light source can be projected into the perforation of the object to be detected; and at least one image capture device, which faces the perforation of the object to be detected The image capture device can capture the image of the perforation of the object to be detected; wherein the perforation has an inlet end and an outlet end, and the inlet end and the outlet end are respectively located at opposite ends of the perforation, The perforation penetrates through the entrance end and the exit end respectively to the opposite sides of the object to be detected. The light generated by the light source can be projected into the perforation of the object to be detected through the entrance end. The image capture device can pass through the entrance The end captures an image of the perforation of the object to be detected, and an unobstructed area is formed at the exit end of the perforation, so that the exit end of the perforation is connected to the outside.

The beneficial effect of this invention is that the automatic visual inspection device for foreign matter in the hole wall provided by this invention includes a backing plate, at least one light source and at least one image capture device. The bearing surface of the backing plate can be equipped with objects to be detected. The objects to be detected With a perforation, the light generated by the light source can be projected into the perforation of the object to be detected, and the image capture device can capture the image of the perforation of the object to be detected. Each of the perforations has an inlet end and an outlet end, and an unobstructed area is formed at the outlet end of the perforations, so that the outlet end of the perforations is connected to the outside without being blocked. Therefore, there is no background object (such as a red background strip) at the exit end of the perforation in this invention, so that an unobstructed area is formed at the exit end of the perforation. Therefore, the photo background can be optimized to make the image inside the perforation clearly visible to facilitate back-end verification. Verify Repair Station (VRS) inspection personnel identification can effectively prevent defective products from flowing out.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and diagrams about this creation. However, the diagrams provided are only for reference and illustration and are not used to limit this creation.

The following is a specific embodiment to illustrate the disclosed implementation manner of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this description can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. In addition, the accompanying drawings of this creation are only simple illustrations and are not depictions based on actual size, as stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention. In addition, the term "or" used in this article shall include any one or combination of multiple associated listed items, depending on the actual situation.

[Example]

Please refer to Figures 1 to 3. This invention provides an automatic visual detection device for foreign objects on the hole wall, including a backing plate 1, at least one light source 2 and at least one image capture device 3.

The backing plate 1 is a plate body. The backing plate 1 has a bearing surface 11 . The bearing surface 11 is located on one side of the backing plate 1 . In this embodiment, the bearing surface 11 is located on the bottom surface of the backing plate 1 . The object to be detected 100 can be an object such as a printed circuit board. The object to be detected 100 can be disposed on the bearing surface 11 of the backing plate 1 , and the object to be detected 100 can be appropriately fixed to the bearing surface 11 of the backing plate 1 . The object to be detected 100 There is at least one through hole 101. The through hole 101 can be a circular hole, but it is not limited. One, two or more through holes 101 can be provided. The structure in which the object to be inspected 100 is fixed on the bearing surface 11 of the backing plate 1 is a conventional technology, and the method of fixing the object to be inspected 100 on the bearing surface 11 of the backing plate 1 is not limited by this invention, so it will not be described again.

The light source 2 may be an LED, such as a fluorescent LED, in order to provide a better auxiliary lighting effect, but is not limited thereto. One or more light sources 2 can be provided, and the number of light sources 2 can be appropriately increased or decreased according to needs. In this embodiment, there are multiple light sources 2 , and these light sources 2 are respectively provided above and below the backing plate 1 , and the illumination light can be projected from the upper and lower sides of the backing plate 1 respectively, so as to provide illumination for multiple perforations 101 at the same time, so as to increase the detection speed. The light source 2 faces the perforation 101 of the object to be detected 100, and the light sources 2 face the two perforations 101 of the object to be detected 100. The light generated by the light sources 2 can be projected into the corresponding perforation 101 of the object to be detected 100, so as to Provide shooting auxiliary light to make the image inside the perforation 101 clearer.

In this embodiment, the object to be detected 100 has two perforations 101 to be detected, and each perforation 101 is provided with two light sources 2. The two light sources 2 are respectively located on both sides (left and right) of the perforation 101, so that Provide better auxiliary lighting effect.

The backing plate 1 can be provided with at least one through hole 12 so that the light source 2 disposed above the backing plate 1 can project light downward through the through hole 12 to illuminate the perforation of the object to be detected 100 located below the backing plate 1 101. The light source 2 disposed below the backing plate 1 projects light upward to directly illuminate the perforation 101 of the object to be detected 100 located below the backing plate 1 .

The image capturing device 3 can be a device such as a CCD. One or more image capturing devices 3 can be provided. The number of image capturing devices 3 can be appropriately increased or decreased according to needs. In this embodiment, the image capturing device 3 3 is provided with two to provide image capture of two perforations 101 at the same time to increase the detection speed. The two image capturing devices 3 are respectively disposed above and below the backing plate 1. The two image capturing devices 3 face the two through holes 101 of the object to be detected 100 respectively, and can capture the object to be detected 100 from above or below the backing plate 1 respectively. Detect images of two different perforations 101 of the object 100 to increase detection speed.

Each of the through holes 101 has an inlet end 102 and an outlet end 103 (as shown in Figures 2 and 3). The inlet end 102 and the outlet end 103 are respectively located at opposite ends of the through hole 101. The through holes 101 pass through the inlet end 102 and the outlet end 103 respectively. The outlet end 103 penetrates to two opposite sides of the object 100 to be detected. The entrance end 102 is closer to the corresponding light source 2 and image capture device 3 than the exit end 103, so that the light generated by the light source 2 can be projected into the perforation 101 of the object to be detected 100 through the entrance end 102, and the image capture device 3 can also pass through. The entrance end 102 captures an image of the perforation 101 of the object 100 to be inspected in order to perform the operation of detecting foreign matter on the hole wall.

The exit end 103 of the perforation 101 is not provided with a background object (such as a red background strip), so that an unobstructed area 104 is formed at the exit end 103 of the perforation 101, so that the exit end 103 of the perforation 101 is connected to the outside without obstruction. In this embodiment, the outlet end 103 of the perforation 101 on the right side in Figure 1 is connected to the external backing plate 1 without obstruction. This creation does not provide a background strip (such as a red background strip), so the outlet end of the perforation 101 The space between 103 and back plate 1 will not be blocked. In this embodiment, the exit end 103 of the perforation 101 on the left side in Figure 1 is connected to the lower space outside without any obstruction. This creation does not provide a background strip (such as a red background strip), so the exit end 103 of the perforation 101 The lower part will not be blocked.

[Beneficial effects of the embodiment]

The beneficial effect of this invention is that the automatic visual inspection device for foreign matter in the hole wall provided by this invention includes a backing plate, at least one light source and at least one image capture device. The bearing surface of the backing plate can be equipped with objects to be detected. The objects to be detected With a perforation, the light generated by the light source can be projected into the perforation of the object to be detected, and the image capture device can capture the image of the perforation of the object to be detected. Each of the perforations has an inlet end and an outlet end, and an unobstructed area is formed at the outlet end of the perforations, so that the outlet end of the perforations is connected to the outside without being blocked. Therefore, there is no background object (such as a red background strip) at the exit end of the perforation in this invention, so that an unobstructed area is formed at the exit end of the perforation. Therefore, the photo background can be optimized to make the image inside the perforation clearly visible to facilitate back-end verification. Verify Repair Station (VRS) inspection personnel identification can effectively prevent defective products from flowing out.

The contents disclosed above are only preferred and feasible embodiments of this invention, and do not limit the scope of the patent application for this invention. Therefore, all equivalent technical changes made by using the description and drawings of this invention are included in the application for this invention. within the scope of the patent.

1: Backrest 11: Bearing surface 12:Through hole 2:Light source 3:Image capture device 100: Object to be inspected 101:Perforation 102: Entrance port 103:Export end 104: Unobstructed area

Figure 1 is a schematic diagram of the automatic visual detection device for foreign matter on the hole wall of this invention.

Figure 2 is a detailed view of part II of Figure 1.

Figure 3 is a detailed view of part III of Figure 1.

Figure 4 is a schematic diagram of the use status of the automatic visual detection device for foreign matter on the hole wall of this invention.

1: Backrest

11: Bearing surface

12:Through hole

2:Light source

3:Image capture device

100: Object to be inspected

101:Perforation

102: Entrance port

103:Export end

104: Unobstructed area

Claims (10)

An automatic visual detection device for foreign matter in hole walls, including: A backing plate, the backing plate has a bearing surface, the bearing surface can be placed with an object to be detected, and the object to be detected has at least one through hole; At least one light source, the light source faces the perforation of the object to be detected, and the light generated by the light source can be projected into the perforation of the object to be detected; and At least one image capture device, the image capture device faces the perforation of the object to be inspected, and the image capture device can capture an image of the perforation of the object to be inspected; wherein the perforation has an inlet end and an outlet end, the inlet end and the outlet end are respectively located at opposite ends of the perforation, and the perforation penetrates through the inlet end and the outlet end to the opposite sides of the object to be detected, The entrance end is closer to the light source and the image capture device than the exit end, and an unobstructed area is formed at the exit end of the through hole so that the exit end of the through hole is connected to the outside. The automatic visual detection device for hole wall foreign matter according to claim 1, wherein the bearing surface is located on the bottom surface of the backing plate. As claimed in claim 2, the automatic visual inspection device for hole wall foreign matter, wherein the light sources are provided with a plurality, and the light sources are respectively arranged above and below the backing plate and can be projected from above and below the backing plate respectively. Illuminating light, the object to be detected has two perforations, each perforation is provided with two light sources, and the two light sources are respectively located on both sides of the perforation. The automatic visual inspection device for hole wall foreign matter as described in claim 3, wherein the backing plate is provided with at least one through hole, so that the light source disposed above the backing plate can project light downward through the through hole to illuminate The perforation of the object to be detected is located below the backing plate. The automatic visual inspection device for hole wall foreign matter as described in claim 3, wherein there are two image capturing devices, the two image capturing devices are respectively arranged above and below the backing plate, and the two image capturing devices are respectively Corresponding to the two perforations of the object to be detected, images of the two perforations of the object to be detected can be captured from above and below the backing plate respectively. An automatic visual detection device for foreign matter in hole walls, including: A backing plate, the backing plate has a bearing surface, the bearing surface can be placed with an object to be detected, and the object to be detected has at least one through hole; At least one light source, the light source faces the perforation of the object to be detected, and the light generated by the light source can be projected into the perforation of the object to be detected; and At least one image capture device, the image capture device faces the perforation of the object to be inspected, and the image capture device can capture an image of the perforation of the object to be inspected; wherein the perforation has an inlet end and an outlet end, the inlet end and the outlet end are respectively located at opposite ends of the perforation, and the perforation penetrates through the inlet end and the outlet end to the opposite sides of the object to be detected, The light generated by the light source can be projected into the perforation of the object to be detected through the entrance end. The image capture device can capture an image of the perforation of the object to be detected through the entrance end. An invisible hole is formed at the exit end of the perforation. Block the area so that the exit end of the perforation meets the outside. The automatic visual inspection device for hole wall foreign matter according to claim 6, wherein the bearing surface is located on the bottom surface of the backing plate. As claimed in claim 7, the automatic visual inspection device for hole wall foreign matter, wherein the light sources are provided with a plurality, and the light sources are respectively arranged above and below the backing plate, and can be projected from above and below the backing plate respectively. Illuminating light, the object to be detected has two perforations, each perforation is provided with two light sources, and the two light sources are respectively located on both sides of the perforation. The automatic visual inspection device for hole wall foreign matter as described in claim 8, wherein the backing plate is provided with at least one through hole, so that the light source provided above the backing plate can project light downward through the through hole to illuminate the position located A perforation of the object to be detected below the backing plate. The automatic visual inspection device for hole wall foreign matter as described in claim 8, wherein there are two image capturing devices, the two image capturing devices are respectively arranged above and below the backing plate, and the two image capturing devices are respectively Corresponding to the two perforations of the object to be detected, images of the two perforations of the object to be detected can be captured from above and below the backing plate respectively.

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