FPC automatic layering detection equipment

Abstract

The utility model provides FPC automatic layering detection equipment which comprises a detection equipment body and an operation table installed on the detection equipment body, and a positioning assembly used for placing an FPC with at least two layers of soft boards and a visual detection assembly used for detecting the FPC are installed on the operation table. A layering assembly for layering the FPC is further installed on the operation table, the layering assembly comprises a lower pressing part and an upper pressing part located below the positioning assembly, and the lower pressing part comprises a first lifting air cylinder capable of moving up and down and an upper vacuum suction nozzle arranged at the end of the first lifting air cylinder; the upper pressing part comprises a second lifting air cylinder capable of moving up and down and a lower vacuum suction nozzle arranged at the end of the second lifting air cylinder. According to the equipment, the bending tension of the FPC is combined with the matched action of the layering assembly, and automatic layering of all layers of flexible boards of the FPC is achieved; and the visual detection assembly photographs to observe the adhesion between the flexible boards of the FPC and whether foreign matters exist or not.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to an automatic stratification testing device for FPC. Background Technology

[0002] FPC (Flexible Printed Circuit Board) is a type of circuit board made based on flexible substrates such as polyimide or polyester film, characterized by its thinness, flexibility, and foldability. FPCs are widely used in modern electronic products, including smartphones, laptops, tablets, wearable devices, automotive electronics, and medical devices. With the trend towards miniaturization, lightweighting, and functional diversification in electronic products, the demand for FPCs continues to grow, placing higher requirements on their performance and reliability.

[0003] FPC is formed by bonding multiple layers of flexible boards. However, the bonding status between the layers and the presence of foreign objects between them are difficult to observe and judge directly by human vision. Therefore, there is a need for an automatic layer detection device that can solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide an automatic FPC layering detection device to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic FPC layering inspection device includes an inspection device body and an operating table mounted on the inspection device body. The operating table is equipped with a positioning component for placing an FPC with at least two layers of flexible circuit boards and a vision inspection component for inspecting the FPC. The operating table is also equipped with a layering component for layering the FPC. The layering component includes a lower pressing part and an upper pressing part located below the positioning component. The lower pressing part includes a first lifting cylinder that can move up and down and an upper vacuum nozzle disposed at the end of the first lifting cylinder. The upper pressing part includes a second lifting cylinder that can move up and down and a lower vacuum nozzle disposed at the end of the second lifting cylinder.

[0007] As a preferred embodiment of the FPC automatic layering detection device of the present invention, the layering component further includes a layering part disposed between the lower pressing part and the upper pressing part. The layering part includes a movable cylinder that can move laterally and a separation rod disposed at the end of the movable cylinder that can extend toward the FPC. Vacuum adsorption holes are provided on both the upper and lower surfaces of the end of the separation rod that extends toward the FPC and contacts the FPC.

[0008] As a preferred embodiment of the FPC automatic layering detection device of this utility model, the pressing part further includes a first transverse cylinder installed on the operating table, and the first transverse cylinder is connected to the first lifting cylinder.

[0009] As a preferred embodiment of the FPC automatic layer detection device of this utility model, position sensors that sense changes in position are provided on both sides of the first lifting cylinder, and the position sensors that sense changes in position are also provided on both sides of the second lifting cylinder.

[0010] As a preferred embodiment of the FPC automatic layer detection device described in this utility model, the position sensor is a photosensitive position sensor.

[0011] As a preferred embodiment of the FPC automatic layering inspection device of this utility model, the visual inspection component includes a visual adjustment module and a camera electrically connected thereto for photographing the FPC. The visual inspection component can be electrically connected to an external display device.

[0012] As a preferred embodiment of the FPC automatic layering detection device of this utility model, a barcode scanning component is also installed on the operating table. The barcode scanning component includes a movable second transverse cylinder and a barcode scanner disposed at the end of the second transverse cylinder. The barcode scanner can identify and record the information of the FPC.

[0013] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0014] By utilizing the bending tension of the FPC in conjunction with the coordinated action of the layering components, the flexible boards of the FPC can be automatically separated. Then, a vision inspection component is used to take pictures to realize the automatic layer detection of the FPC, which can observe the adhesion between the layers of the FPC and the presence of foreign objects between the layers of the FPC. The vacuum adsorption holes on the upper and lower surfaces of the separating rod facilitate the adsorption of the corresponding layers of flexible boards. Combined with the adsorption action of the upper and lower vacuum nozzles, the separation of the three layers of the FPC can be achieved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0016] Figure 1 This is a schematic diagram of the FPC automatic layer detection device of this utility model;

[0017] Figure 2 for Figure 1 Side sectional view;

[0018] Figure 3 This is a schematic diagram of the lower pressing section in the FPC automatic layering detection device of this utility model;

[0019] Figure 4 This is a schematic diagram of the upper pressure section in the FPC automatic layering detection device of this utility model;

[0020] Figure 5 This is a schematic diagram of the layering section in the FPC automatic layering detection device of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point I;

[0022] Figure 7 This is a schematic diagram showing the connection between the FPC and the positioning component of this utility model;

[0023] Figure 8 This is a front view of the connection between the FPC and the positioning component in Embodiment 1;

[0024] Figure 9 This is a front view of the connection between the FPC and the positioning component in Embodiment 2.

[0025] The reference numerals in the figures include:

[0026] 1. Detection equipment body; 2. Operating table; 3. Positioning component; 4. Pressing section; 400. First lifting cylinder; 401. Upper vacuum nozzle; 402. First transverse cylinder; 5. Pressing section; 500. Second lifting cylinder; 501. Lower vacuum nozzle; 6. Layering section; 600. Moving cylinder; 601. Separating rod; 602. Vacuum adsorption hole; 7. Barcode scanning component; 700. Second transverse cylinder; 701. Barcode scanner; 8. Vision inspection component; 800. Vision adjustment module; 801. Camera; 9. FPC; 900. Upper flexible circuit board; 901. Middle flexible circuit board; 902. Lower flexible circuit board; 10. Position sensor. Detailed Implementation

[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0028] like Figures 1 to 9As shown, the FPC automatic layering inspection equipment includes an inspection equipment body 1 and an operating table 2 installed on the inspection equipment body 1. The operating table 2 is equipped with a positioning component 3 for placing an FPC9 with at least two layers of flexible boards and a vision inspection component 8 for inspecting the FPC9. In this embodiment, layering inspection can be performed on FPC9 with two or more layers of flexible boards. The FPC9 is formed by bonding two or more layers of flexible boards with a certain material bending tension. The vision inspection component 8 includes a vision adjustment module 800 and a camera 801 electrically connected to it and used to photograph the FPC9. The vision inspection component 8 can be electrically connected to an external display device. Specifically, the vision inspection component 8 is used to photograph the layered FPC9 and transmit it to a display device that can display the photographed results, such as a display screen. The display device can show whether there is adhesion between the layers of flexible boards of the FPC9 and whether there are foreign objects, without the need for manual observation, and the accuracy and effect of the inspection are significantly improved.

[0029] In the first embodiment of this utility model, a layering component for layering FPC9 is also installed on the operating table 2. The layering component includes a lower pressing part 4 and an upper pressing part 5 located below the positioning component 3. The lower pressing part 4 includes a first lifting cylinder 400 that can move up and down and an upper vacuum nozzle 401 disposed at the end of the first lifting cylinder 400. The upper pressing part 5 includes a second lifting cylinder 500 that can move up and down and a lower vacuum nozzle 501 disposed at the end of the second lifting cylinder 500. It should be noted that the upper pressing part 5 and the lower pressing part 4 are arranged opposite to each other, wherein the orientation of the upper vacuum nozzle 401 is opposite to the orientation of the lower vacuum nozzle 501.

[0030] In this first embodiment, as Figure 8 As shown, the FPC9 has two flexible circuit boards, namely an upper flexible circuit board 900 and a lower flexible circuit board 902. After the power supply and switch of the detection device body 1 are turned on, the upper vacuum nozzle 401 moves downward with the first lifting cylinder 400 to contact the upper flexible circuit board 900 and adsorbs the upper flexible circuit board 900 under vacuum. At the same time, the lower vacuum nozzle 501 moves upward with the second lifting cylinder 500 to contact the lower flexible circuit board 902 and adsorbs the lower flexible circuit board 902 under vacuum. The upper vacuum nozzle 401 adsorbs the upper flexible circuit board 900 and moves upward with the first lifting cylinder 400. The lowering cylinder 400 moves upward, while the lower vacuum nozzle 501 adsorbs the lower flexible board 902 and moves downward with the second lifting cylinder 500. This achieves the separation of the upper flexible board 900 and the lower flexible board 902. At this time, the vision detection component 8 can take a picture of the FPC9 in the separated state of the upper flexible board 900 and the lower flexible board 902 and upload it to the display device. According to the results of the display device, the adhesion between the upper flexible board 900 and the lower flexible board 902 and whether there are foreign objects between the upper flexible board 900 and the lower flexible board 902 can be observed.

[0031] In the second embodiment of this utility model, the operating table 2 has the same layering component as in the first embodiment. However, unlike the first embodiment, the layering component in the first embodiment also includes a layering part 6 disposed between the lower pressing part 4 and the upper pressing part 5. The layering part 6 includes a laterally movable cylinder 600 and a separating rod 601 disposed at the end of the movable cylinder 600 that can extend toward the FPC9. Vacuum adsorption holes 602 are provided on both the upper and lower surfaces of the end of the separating rod 601 that extends toward and contacts the FPC9.

[0032] In this second embodiment, as Figure 9 As shown, the FPC9 has three layers of flexible circuit boards: an upper flexible circuit board 900, a middle flexible circuit board 901, and a lower flexible circuit board 902. After the power and switch of the main body 1 of the testing device are turned on, the upper vacuum nozzle 401 moves downward with the first lifting cylinder 400 to contact the upper flexible circuit board 900 and adsorbs it under vacuum. At the same time, the lower vacuum nozzle 501 moves upward with the second lifting cylinder 501 to contact the lower flexible circuit board 902 and adsorbs it under vacuum. Because there is an upward force when the lower vacuum nozzle 501 contacts the lower flexible circuit board 902, the upper flexible circuit board 900 and the middle flexible circuit board 901 will bend upward. The upper vacuum nozzle 401 adsorbs the upper flexible circuit board 900 and follows... The first lifting cylinder 400 moves upward, while the lower vacuum nozzle 501 adsorbs the lower flexible board 902 and moves downward with the second lifting cylinder 500. Since the upper vacuum nozzle 401 will generate an upward force on both the upper and middle flexible boards 901 when it moves upward with the first lifting cylinder 400, the middle flexible board 901 and the lower flexible board 902 are separated at this time. At this time, the vision detection component 8 can take a picture of the middle flexible board 901 and the lower flexible board 902 in the separated state and upload it to the display device. According to the result of the display device, the adhesion between the middle flexible board 901 and the lower flexible board 902 and whether there are foreign objects between the middle flexible board 901 and the lower flexible board 902 can be observed.

[0033] After the middle layer flexible board 901 and the lower layer flexible board 902 are separated, the separating rod 601 is inserted between the middle layer flexible board 901 and the lower layer flexible board 902. Under the action of gravity and vacuum, the upper layer flexible board 900 and the lower layer flexible board 902 are attracted by the vacuum adsorption holes 602 on the upper surface of the separating rod 601, and the lower layer flexible board 902 is attracted by the vacuum adsorption holes 602 on the lower surface of the separating rod 601. The upper vacuum nozzle 401 moves downward with the first lifting cylinder 400 to contact the upper layer flexible board 900 and attracts the upper layer flexible board 900 under vacuum. At the same time, the lower vacuum nozzle 501 moves upward with the second lifting cylinder 500 to contact the lower layer flexible board 902 and attracts the lower layer flexible board 902 under vacuum. The separating rod 601 quickly detaches from the middle layer flexible board 901. The upper flexible plate 901 and the lower flexible plate 902 come into contact. Simultaneously, the upper vacuum nozzle 401 breaks the vacuum and detaches from the upper flexible plate 900, and the lower vacuum nozzle 501 breaks the vacuum and detaches from the lower flexible plate 902. The upper flexible plate 900, the middle flexible plate 901, and the lower flexible plate 902 are then reset and adhered. During the reset, the upper vacuum nozzle 401 moves downward again with the first lifting cylinder 400 to contact the upper flexible plate 900 and adsorbs it under vacuum. Simultaneously, the lower vacuum nozzle 501 also moves upward again with the second lifting cylinder 500 to contact the lower flexible plate 902 and adsorbs it under vacuum. Due to the aforementioned operating steps, the separating rod 601 holds the middle flexible plate... When the middle layer 901 and the lower flexible plate 902 separate, the middle layer 901 bends downward under the combined action of gravity and the downward force generated when the upper vacuum nozzle 401 moves downward and contacts the upper flexible plate 900. The upper vacuum nozzle 401 adsorbs the upper flexible plate 900 and then moves upward with the first lifting cylinder 400. At the same time, the lower vacuum nozzle 501 adsorbs the lower flexible plate 902 and moves downward with the second lifting cylinder 500. Since the lower vacuum nozzle 501 generates a downward pulling force when it moves downward, it will simultaneously adsorb the middle flexible plate 901 and the lower flexible plate 902 downward. As a result, a gap will be created between the middle flexible plate 901 and the upper flexible plate 902. A gap will also be created between the flexible plates 902. At this time, the separating rod 601 is inserted between the upper flexible plate 900 and the lower flexible plate 902. The vacuum adsorption hole 602 on the upper surface of the separating rod 601 adsorbs the upper flexible plate 900, and the vacuum adsorption hole 602 on the lower surface of the separating rod 601 adsorbs the middle flexible plate 901. The upper vacuum nozzle 401 moves downward again with the first lifting cylinder 400 and contacts the upper flexible plate 900, adsorbing it under vacuum. At the same time, the lower vacuum nozzle 501 moves upward again with the second lifting cylinder 500 and contacts the lower flexible plate 902, adsorbing it under vacuum. The separating rod 601 then disengages from the contact between the upper and middle flexible plates 901.Simultaneously, the upper vacuum nozzle 401 and the lower vacuum nozzle 501 quickly break the vacuum and detach from the upper flexible board 900 and the lower flexible board 902, respectively. At this point, the upper flexible board 900 and the middle flexible board 901, and the middle flexible board 901 and the lower flexible board 902, are all separated. The vision detection component 8 can then photograph the separation state of the upper flexible board 900, the middle flexible board 901, and the lower flexible board 902 and upload it to the display device. Based on the results from the display device, the adhesion between the upper flexible board 900 and the lower flexible board 902, the middle flexible board 901 and the lower flexible board 902, and whether there are foreign objects between the upper flexible board 900 and the middle flexible board 901, and the middle flexible board 901 and the lower flexible board 902 can be observed.

[0034] Furthermore, the pressing part 4 also includes a first transverse cylinder 402 installed on the operating table 2. The first transverse cylinder 402 is connected to the first lifting cylinder 400. The first transverse cylinder 402 can move the position of the first lifting cylinder 400 and change the position of the pressing part 4 according to different positions.

[0035] Furthermore, position sensors 10 are provided on both sides of the first lifting cylinder 400 to sense changes in its position, and position sensors 10 are also provided on both sides of the second lifting cylinder 500 to sense changes in its position. The position sensors 10 on both sides of the first lifting cylinder 400 can sense the position of the upper vacuum nozzle 401 as it moves up and down with the first lifting cylinder 400, that is, the position of the upper vacuum nozzle 401 after it returns to its original position. Similarly, the position sensors 10 on both sides of the second lifting cylinder 500 can sense the position of the lower vacuum nozzle 501 as it moves up and down with the second lifting cylinder 500, that is, the position of the lower vacuum nozzle 501 after it returns to its original position. In this utility model, the position sensor uses a high-precision photosensitive position sensor 10.

[0036] Furthermore, a barcode scanning component 7 is also installed on the operating table 2. After the FPC9 is placed on the positioning component 3, the information of the FPC9 is identified and entered. The barcode scanning component 7 can move according to the position of the FPC9. Therefore, the barcode scanning component 7 includes a movable second transverse cylinder 700. The identification and entry of the FPC9 information is performed by a barcode scanner 701 set at the end of the second transverse cylinder 700. The barcode scanner 701 can be a laser wireless barcode scanner 701. After scanning, the barcode scanning component 7 can be moved to a position that will not affect the subsequent layering process of the FPC9.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatic layering inspection device for FPCs, comprising an inspection device body (1) and an operating table (2) mounted on the inspection device body (1), wherein the operating table (2) is equipped with a positioning component (3) for placing an FPC (9) having at least two layers of flexible boards and a visual inspection component (8) for inspecting the FPC (9), characterized in that, The operating table (2) is also equipped with a layering component for layering the FPC (9). The layering component includes a lower pressing part (4) and an upper pressing part (5) located below the positioning component (3). The lower pressing part (4) includes a first lifting cylinder (400) that can move up and down and an upper vacuum nozzle (401) disposed at the end of the first lifting cylinder (400). The upper pressing part (5) includes a second lifting cylinder (500) that can move up and down and a lower vacuum nozzle (501) disposed at the end of the second lifting cylinder (500).

2. The FPC automatic stratification detection device according to claim 1, characterized in that, The layering assembly further includes a layering section (6) disposed between the lower pressing section (4) and the upper pressing section (5). The layering section (6) includes a laterally movable cylinder (600) and a separation rod (601) disposed at the end of the movable cylinder (600) that extends toward the FPC (9). Vacuum adsorption holes (602) are provided on both the upper and lower surfaces of the end of the separation rod (601) that extends toward the FPC (9) and contacts the FPC (9).

3. The FPC automatic stratification detection device according to claim 1, characterized in that, The pressing part (4) also includes a first transverse cylinder (402) installed on the operating table (2), and the first transverse cylinder (402) is connected to the first lifting cylinder (400).

4. The FPC automatic stratification detection device according to claim 1, characterized in that, Both sides of the first lifting cylinder (400) are provided with position sensors (10) that sense changes in its position, and both sides of the second lifting cylinder (500) are also provided with the same position sensors (10) that sense changes in its position.

5. The FPC automatic stratification detection device according to claim 4, characterized in that, The position sensor is a photosensitive position sensor (10).

6. The FPC automatic stratification detection device according to claim 1, characterized in that, The visual inspection component (8) includes a visual adjustment module (800) and a camera (801) electrically connected thereto and used to capture images of the FPC (9). The visual inspection component (8) can be electrically connected to an external display device.

7. The FPC automatic stratification detection device according to claim 1, characterized in that, The operating table (2) is also equipped with a barcode scanning component (7), which includes a movable second transverse cylinder (700) and a barcode scanner (701) disposed at the end of the second transverse cylinder (700). The barcode scanner (701) can identify and record the information of the FPC (9).

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