PCBA board appearance detection equipment

Abstract

This utility model discloses a PCBA board appearance inspection device, comprising: a support component for placing and fixing a fixture on which the PCBA board to be inspected is fixed; a first appearance inspection component, including a first appearance inspection component and an identification component, wherein the first appearance inspection component can drive the identification component to move relative to the support station, the PCBA board to be inspected has identification information, the identification component is used to collect the identification information, the first appearance inspection component is used to collect upper surface information, and the identification information includes the type and coding information of the PCBA board; a second appearance inspection component, including a second appearance inspection component, which collects lower surface information; and a supplementary lighting component, wherein the light source is set towards the PCBA board to be inspected to provide a light source, the brightness adjustment range of the supplementary lighting component is 10% to 100%, providing a stable light source, ensuring that clear and accurate image information can be obtained under different lighting conditions, avoiding detection errors caused by insufficient or uneven lighting, and improving the stability and consistency of the detection results.

Description

Technical Field

[0001] This utility model relates to the field of PCBA board inspection technology, and in particular to a PCBA board appearance inspection device. Background Technology

[0002] With the rapid development of electronic technology, PCBA (Printed Circuit Board Assembly) boards are increasingly widely used in various electronic products, making their quality inspection a crucial step in ensuring product reliability. During PCBA board production, defects such as missing components, poor soldering, and scratches can severely impact product performance and lifespan. To facilitate traceability, end customers require that all surfaces of the PCBA board be photographed before shipment to confirm its integrity and the absence of any missing or damaged components.

[0003] However, in the existing technology, some testing equipment can only test one side of the PCBA board. For complex board types with components on both sides, it is impossible to complete the full test at one time. It is necessary to manually flip the board and then perform a second test, which not only increases the operation steps and labor costs, but also makes it easy to cause testing errors or damage to the board due to human factors. In addition, the existing equipment is not convenient for classifying and analyzing the information collected from the PCBA board. Utility Model Content

[0004] In view of the above, this application provides an embodiment to solve at least one problem existing in the background art. The purpose of this application is achieved through the following technical solution: a PCBA board appearance inspection device, comprising: frame; The support assembly, mounted on the frame, has a support station for placing and fixing the PCBA board to be tested; The first appearance inspection component is mounted on the frame and positioned above the support component. It includes a first appearance inspection component connected to the control component and an identification component connected to the first appearance inspection component. Under the action of external force, the first appearance inspection component can drive the identification component to move relative to the support station. The PCBA board to be inspected has identification information. The identification component is used to collect the identification information of the PCBA board to be inspected. The first appearance inspection component is used to collect the upper surface information of the PCBA board to be inspected. The identification information includes the type and coding information of the PCBA board. The second appearance inspection component is installed on the frame and located below the support component. It includes a second appearance inspection component, which can move relative to the support station under the action of external force to collect the lower surface information of the PCBA board to be tested. A supplementary lighting component is mounted on the rack. The light source of the supplementary lighting component is directed towards the PCBA board to be tested. It is used to provide a light source for the first appearance inspection component and the second appearance inspection component to inspect the PCBA board to be tested. The brightness of the supplementary lighting component is adjustable within a preset range, and the brightness adjustment range of the supplementary lighting component is 10% to 100%. A control component, electrically connected to the first appearance detection component and the second appearance detection component, is used to receive the acquisition information from the identification component and the acquisition information from the first appearance detection component and the second appearance detection component.

[0005] Optionally, in the above-mentioned PCBA board appearance inspection equipment, the supplementary lighting component includes two sets of supplementary lighting components. The two sets of supplementary lighting components are respectively arranged close to the first appearance inspection component and the second appearance inspection component, and each set of supplementary lighting components is respectively arranged on both sides of the first appearance inspection component / second appearance inspection component.

[0006] Optionally, in the above-mentioned PCBA board appearance inspection equipment, the supplementary lighting component includes a connector connected to the frame, a lampshade connected to the connector, and a lamp group at least partially disposed within the lampshade. The lamp group can rotate relative to the lampshade under the action of external force to change the illumination area of ​​the lamp group.

[0007] Optionally, in the above-mentioned PCBA board appearance inspection equipment, the supplementary lighting component further includes a multi-band filter disposed on the illumination path of the lamp group.

[0008] Optionally, the above-mentioned PCBA board appearance inspection equipment further includes a first mounting bracket and a three-dimensional linear module one mounted on the first mounting bracket, the three-dimensional linear module one being used to drive the first appearance inspection component and the identification component to move relative to the bearing station.

[0009] Optionally, the above-mentioned PCBA board appearance inspection equipment further includes a second mounting bracket and a second three-dimensional linear module mounted on the second mounting bracket, the second three-dimensional linear module being used to drive the second appearance inspection component to move relative to the bearing station.

[0010] Optionally, in the above-mentioned PCBA board appearance inspection equipment, the carrying component includes a carrier frame and a conveyor disposed on the carrier frame. The carrying station is located on the carrier frame, and the conveyor is configured to be driven by a driving component to convey the fixture located on the conveyor in the horizontal direction.

[0011] Optionally, the above-mentioned PCBA board appearance inspection equipment further includes a first sensor disposed at the front end of the support frame, a second sensor disposed on the support frame, and a third sensor disposed at the rear end of the support frame. The first sensor, the second sensor, and the third sensor are connected to the control component. The first sensor is used for feeding detection of the fixture, the second sensor is used for positioning detection of the fixture, and the third sensor is used for discharging detection of the fixture.

[0012] Optionally, the above-mentioned PCBA board appearance inspection equipment further includes a stop member disposed on the support frame. The stop member can move relative to the support frame in the feeding and discharging directions of the fixture under the action of external force. After receiving the second sensor information, the control component controls the stop member to move toward the fixture.

[0013] The beneficial effects of this utility model using the above structure are as follows: By setting a first appearance inspection component above the support component and a second appearance inspection component below the support component, the components can move flexibly to simultaneously collect information from all surfaces of the PCBA board under test. This avoids the cumbersome steps of manually flipping the PCBA board for secondary inspection required by traditional inspection equipment, reducing operation time and labor costs, improving efficiency, and reducing detection errors caused by human factors and potential damage to the PCBA board. Furthermore, the first appearance inspection component also includes a movable identification element, which is used to identify the identification information on the PCBA board under test. This identification information includes the type and coding information of the PCBA board. That is, the identification element can determine the type and coding information of the PCBA board under test through the identification information. The control component can classify and store PCBA boards of the same type but different coding information according to the information collected by the identification element, facilitating subsequent traceability. The supplementary lighting component provides a stable light source for both the first and second appearance inspection components, ensuring clear and accurate image information under different lighting conditions, avoiding detection errors caused by insufficient or uneven lighting, and improving the stability and consistency of the detection results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a PCBA board appearance inspection device according to an embodiment of this application; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 for Figure 1 A schematic diagram of the first appearance inspection component of the PCBA board appearance inspection equipment shown; Figure 4 for Figure 1A schematic diagram of the structure of the second appearance inspection component of the PCBA board appearance inspection equipment shown; Figure 5 for Figure 1 The diagram shows the structural structure of the support component of the PCBA board appearance inspection equipment.

[0015] Figure label: Frame 1, bearing assembly 2, first appearance inspection assembly 3, second appearance inspection assembly 4, bearing station 21, fixture 22, first appearance inspection component 31, identification component 32, second appearance inspection component 33, first mounting bracket 6, three-dimensional linear module one 61, second mounting bracket 7, three-dimensional linear module two 71, supplementary lighting assembly 8, connector 81, lamp cover 82, lamp group 83, bearing frame 23, conveyor 24, first sensor 91, second sensor 92, third sensor 93, stop component 10, cylinder 11. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0018] During the production of PCBA boards, appearance defects such as missing components, poor soldering of leads, and scratches on the board surface may seriously affect the performance and service life of the product. In order to facilitate traceability, end customers require that all surfaces of the PCBA board be photographed before shipment to confirm whether the PCBA board is intact and whether there are any missing or damaged components on the PCBA board.

[0019] However, existing PCBA board inspection equipment is used to reject defective PCBAs, including rejection based on performance testing and appearance testing. Most existing inspection equipment is for single-sided inspection of PCBA boards, which is not comprehensive enough. There are also a few double-sided inspection devices, but they are all implemented by automatically flipping the PCBA boards or manually. Automatic flipping inspection devices result in low inspection efficiency and complex flipping structures, while manual flipping inspection devices not only result in low inspection efficiency but also increase labor costs. Most importantly, manual flipping can damage the PCBA boards.

[0020] To solve the above problems, refer to Figure 1 , Figure 3 as well as Figure 4 and Figure 5 As shown in the figure, a preferred embodiment of the present invention discloses a PCBA board appearance inspection device, including a frame 1, a support component 2 mounted on the frame 1, a first appearance inspection component 3, a second appearance inspection component 4, and a control component. The support component 2 has a support station 21 for placing and fixing a fixture 22 on which the PCBA board to be inspected is fixed. The first appearance inspection component 3 is positioned above the support component 2 for inspecting the upper surface of the PCBA board to be inspected. The second appearance inspection component 4 is positioned below the support component 2 for inspecting the lower surface of the PCBA board to be inspected. The control component is electrically connected to the first and second appearance inspection components 3 and 4 to receive the information collected by the first and second appearance inspection components 3 and 4, respectively. This inspection device, by setting the first and second appearance inspection components 3 and 4, respectively inspects the upper and lower surfaces of the PCBA board, achieving comprehensive inspection of both sides of the PCBA board. This avoids the cumbersome steps of manually flipping the PCBA board for secondary inspection required by traditional inspection equipment, reducing operation time and labor costs, and simultaneously reducing inspection errors caused by human factors and potential damage to the PCBA board.

[0021] Furthermore, the first appearance inspection component 3 includes a first appearance inspection element 31 connected to the control component and an identification element 32 connected to the first appearance inspection element 31. Under external force, the first appearance inspection element 31 can drive the identification element 32 to move relative to the bearing station 21. The PCBA board to be inspected has identification information. The identification element 32 is used to collect the identification information of the PCBA board to be inspected, and the first appearance inspection element 31 is used to collect the upper surface information of the PCBA board to be inspected. The identification information includes the type and coding information of the PCBA board. The first appearance inspection component 3 also includes a second appearance inspection element 33. The second appearance inspection element 33 can move relative to the bearing station 21 under external force to collect the lower surface information of the PCBA board to be inspected.

[0022] In this embodiment, the testing process of the PCBA board under test is as follows: after the fixture 22 is in place, the identification component 32 adjusts its position and scans the identification information on the PCBA board under test. The identification information is QR code information, and the identification component 32 is a barcode scanner connected to the control component. The barcode scanner obtains the type of the PCBA board under test by scanning the QR code information to determine whether it is the target type. If the type matches, the control component creates a folder for the PCBA board under test according to the encoding information. The first appearance detection component 31 and the second appearance detection component 33 move to the optimal position to collect information on the upper and lower surfaces of the PCBA board under test, respectively, and transmit and store the collected information in the folder suggested by the control component. Subsequently, the control component will continue to analyze the stored information.

[0023] It should be noted that in this embodiment, both the first appearance inspection component 31 and the second appearance inspection component 33 are CCD cameras.

[0024] It should be noted that the control component may include a signal receiving module, an information processing module, an information transmission and storage module, and a control module. The signal receiving module receives signals from various components, the information processing module processes the signals received by the signal receiving module, the information transmission and storage module transmits and stores the processed signals, and the control module issues action commands to the components connected to it. It should be noted that in this embodiment, the signal receiving module is a MES module.

[0025] Understandably, both the first appearance inspection component 31 and the second appearance inspection component 33 can move relative to the fixture 22 under external force, allowing for flexible adjustment of their position relative to the PCBA board under test to acquire information about the PCBA board at the optimal angle. Understandably, the identification component 32 enables the device to acquire identification information of the PCBA board under test, such as type and coding information, thereby achieving rapid identification and classification of different PCBA boards. Simultaneously, the first appearance inspection component 31 and the second appearance inspection component 33 respectively acquire information from the upper and lower surfaces of the PCBA board. Combined with the processing of the control components, this allows for more accurate classification and storage of the PCBA board under test, improving the accuracy and reliability of the inspection.

[0026] Furthermore, the equipment also includes a first mounting bracket 6 and a three-dimensional linear module 61 mounted on the first mounting bracket 6, a second mounting bracket 7 and a three-dimensional linear module 71 mounted on the second mounting bracket 7. The three-dimensional linear module 61 is used to drive the first appearance inspection component 31 and the identification component 32 to move relative to the bearing station 21, and the three-dimensional linear module 71 is used to drive the second appearance inspection component 33 to move relative to the bearing station 21.

[0027] Understandably, by setting up three-dimensional linear module one 61 and three-dimensional linear module two 71, both the first appearance inspection component 31 and the second appearance inspection component 33 can move precisely along three directions (x, y, z) to quickly and accurately reach the designated position, thereby improving the efficiency, speed, accuracy, and flexibility of the inspection. It should be noted that in this embodiment, both three-dimensional linear module one 61 and three-dimensional linear module two 71 are composed of a lead screw component and a drive motor or drive cylinder. This structure is a relatively mature structure in the field and will not be described in detail here.

[0028] In an alternative embodiment, reference Figure 1 and Figure 2 As shown, the appearance inspection equipment also includes a supplementary lighting component 8 mounted on the frame 1. The light source of the supplementary lighting component 8 is set towards the PCBA board to be inspected. The supplementary lighting component 8 is used to provide a light source for the first appearance inspection component 3 and the second appearance inspection component 4 to inspect the PCBA board to be inspected, ensuring that clear and accurate image information can be obtained under different lighting conditions. By setting the light source of the supplementary lighting component 8 towards the PCBA board to be inspected, it can provide supplementary lighting for the first appearance inspection component 3 and the second appearance inspection component 4 to obtain clear images, without affecting the imaging effect of the first appearance inspection component 3 and the second appearance inspection component 4, preventing overexposure caused by excessive light source, or backlighting of the first appearance inspection component 3 and the second appearance inspection component 4.

[0029] In practical applications, due to the differences in size and height of the components on the PCBA board, the light and shadow on the components will vary in area when the light group is at different angles. The resulting light and shadow covering part of the components will affect the accuracy of the collected information.

[0030] Therefore, in this embodiment, the above problems are solved by setting or combining the following structures.

[0031] Specifically, in this embodiment, the supplementary lighting component includes two sets of supplementary lighting components. The two sets of supplementary lighting components are respectively located close to the two sets of first appearance inspection components and the two sets of second appearance inspection components. Each set of two sets of supplementary lighting components is respectively located on both sides of the two sets of first appearance inspection components / second appearance inspection components, so that the supplementary lighting components on both sides can simultaneously provide light sources for the PCBA board being inspected, so as to avoid the components forming light and shadow on the board due to providing light sources on one side.

[0032] Specifically, the supplementary lighting component includes a connector 81 connected to the frame 1, a lamp cover 82 connected to the connector 81, and a lamp group 83 at least partially disposed within the lamp cover 82. The lamp group 83 can rotate relative to the lamp cover 82 under the action of external force to change the illumination area of ​​the lamp group 83.

[0033] Understandably, the lamp group 83 in the supplementary lighting component can rotate relative to the lamp cover 82 under the action of external force to change the illumination area of ​​the lamp group 83. This allows the equipment to flexibly adjust the illumination range and angle of the light source according to the size, shape, and inspection requirements of the PCBA board to be inspected, thereby improving the utilization rate of the light source and the flexibility of inspection. Furthermore, by adjusting the illumination area of ​​the lamp group 83, the equipment can adapt to the inspection requirements of PCBA boards of different sizes, shapes, and layouts, exhibiting strong adaptability and versatility. This eliminates the need for frequent changes of the light source or adjustments to the equipment structure when dealing with various types of PCBA boards, thus improving inspection efficiency.

[0034] Furthermore, the supplementary lighting component also includes a multi-band filter set on the illumination path of the lamp group 83, which can filter out some of the interfering light, so that the detection device can obtain stable image quality, high image clarity and contrast under different lighting conditions, improve the accuracy and reliability of the detection results, and the multi-band filter can be used for PCBA boards of different colors.

[0035] Furthermore, the lamp assembly 83 is connected to the control component, which can control the brightness of the lamp assembly 83 to be adjustable, with the brightness adjustment range of the lamp assembly 83 being 10% to 100%.

[0036] Understandably, by controlling the brightness of the lamp group 83 to be adjustable, with a brightness adjustment range of 10% to 100%, the equipment can flexibly adjust the brightness of the light source according to the detection requirements and ambient lighting conditions, thereby improving the adaptability of the light source and the flexibility of detection. On the other hand, by controlling the brightness of the lamp group 83, the equipment can minimize energy consumption while meeting the detection requirements, thus achieving energy saving and high efficiency.

[0037] In an optional embodiment, the carrier assembly 2 includes a carrier frame 23 and a conveyor 24 disposed on the carrier frame 23. The carrier station 21 is located on the carrier frame 23. The conveyor 24 is configured to be driven by a drive component to convey the fixture 22 located on the conveyor 24 in a horizontal direction. The advantage of this arrangement is that the PCBA board to be inspected can automatically enter and leave the inspection area, reducing manual operation and improving the automation and efficiency of the inspection.

[0038] It should be noted that in this embodiment, the conveying component 24 can be a conveyor belt or the like. The specific limitations on the conveying component are not specified here, as long as the above-mentioned effects can be achieved.

[0039] Furthermore, the equipment also includes a first sensor 91 disposed at the front end of the support frame 23, a second sensor 92 disposed on the support frame 23, and a third sensor 93 disposed at the rear end of the support frame 23. The first sensor 91, the second sensor 92, and the third sensor 93 are connected to the control component. The first sensor 91 is used for feeding detection of the fixture 22, the second sensor 92 is used for positioning detection of the fixture 22, and the third sensor 93 is used for discharging detection of the fixture 22. This enables the equipment to automatically detect the position and status of the fixture 22, realizes automated control of the detection process, reduces manual intervention, and improves the efficiency and stability of the detection.

[0040] In an optional embodiment, the device further includes a stop 10 disposed on the support frame 23. The stop 10 can move relative to the support frame 23 in the feeding and discharging directions of the fixture 22 under the action of external force. After receiving information from the second sensor 92, the control component controls the stop 10 to move toward the fixture 22, so that the detection device can accurately locate the position of the fixture 22, ensuring the accuracy and reliability of the detection.

[0041] It should be noted that, in this embodiment, the device also includes a cylinder 11 connected to the stop member 10, which is used to drive the stop member 10 to move. Compared with a fixed stop member, the stop member 10, which can be driven by external force, can be used with jigs 22 or PCBA boards of different specifications, so as to move to the corresponding position according to their different specifications to achieve their limitation.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A PCBA board appearance inspection device, characterized in that, include: frame; The support assembly, mounted on the frame, has a support station for placing and fixing the PCBA board to be tested; The first appearance inspection component is mounted on the frame and positioned above the support component. It includes a first appearance inspection component connected to the control component and an identification component connected to the first appearance inspection component. Under the action of external force, the first appearance inspection component can drive the identification component to move relative to the support station. The PCBA board to be inspected has identification information. The identification component is used to collect the identification information of the PCBA board to be inspected. The first appearance inspection component is used to collect the upper surface information of the PCBA board to be inspected. The identification information includes the type and coding information of the PCBA board. The second appearance inspection component is installed on the frame and located below the support component. It includes a second appearance inspection component, which can move relative to the support station under the action of external force to collect the lower surface information of the PCBA board to be tested. A supplementary lighting component is mounted on the rack. The light source of the supplementary lighting component is directed towards the PCBA board to be tested. It is used to provide a light source for the first appearance inspection component and the second appearance inspection component to inspect the PCBA board to be tested. The brightness of the supplementary lighting component is adjustable within a preset range, and the brightness adjustment range of the supplementary lighting component is 10% to 100%. A control component, electrically connected to the first appearance detection component and the second appearance detection component, is used to receive the acquisition information from the identification component and the acquisition information from the first appearance detection component and the second appearance detection component.

2. The PCBA board appearance inspection equipment according to claim 1, characterized in that, The supplementary lighting assembly includes two sets of supplementary lighting components. The two sets of supplementary lighting components are respectively located close to the first appearance detection component and the second appearance detection component. Each set of supplementary lighting components is respectively located on both sides of the first appearance detection component / second appearance detection component.

3. The PCBA board appearance inspection equipment according to claim 2, characterized in that, The supplementary lighting component includes a connector connected to the frame, a lampshade connected to the connector, and a lamp assembly at least partially disposed within the lampshade. The lamp assembly can rotate relative to the lampshade under external force to change the illumination area of ​​the lamp assembly.

4. The PCBA board appearance inspection equipment according to claim 3, characterized in that, The supplementary lighting component also includes a multi-band filter disposed on the illumination path of the lamp assembly.

5. The PCBA board appearance inspection equipment according to claim 1, characterized in that, The device further includes a first mounting bracket and a three-dimensional linear module one mounted on the first mounting bracket, the three-dimensional linear module one being used to drive the first appearance inspection component and the identification component to move relative to the bearing station.

6. The PCBA board appearance inspection equipment according to claim 1, characterized in that, The device also includes a second mounting bracket and a second three-dimensional linear module mounted on the second mounting bracket, the second three-dimensional linear module being used to drive the second appearance inspection component to move relative to the bearing station.

7. The PCBA board appearance inspection equipment according to claim 1, characterized in that, The carrier assembly includes a carrier frame and a conveyor disposed on the carrier frame. The carrier station is located on the carrier frame. The conveyor is configured to be driven by a drive component to convey the fixture located on the conveyor in a horizontal direction.

8. The PCBA board appearance inspection equipment according to claim 7, characterized in that, The device further includes a first sensor disposed at the front end of the support frame, a second sensor disposed on the support frame, and a third sensor disposed at the rear end of the support frame. The first sensor, the second sensor, and the third sensor are connected to the control component. The first sensor is used for feeding detection of the fixture, the second sensor is used for positioning detection of the fixture, and the third sensor is used for discharging detection of the fixture.

9. The PCBA board appearance inspection equipment according to claim 8, characterized in that, The device also includes a stop member disposed on the support frame. The stop member can move relative to the support frame in the feeding and discharging directions of the fixture under the action of external force. After receiving the second sensor information, the control component controls the stop member to move toward the fixture.

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