Conveying detection assembly and online detection equipment

Abstract

The utility model discloses a conveying detection assembly and on-line detection equipment, and relates to the technical field of detection. The conveying and detecting assembly comprises a rack, a first conveying part, at least one collecting part and a plurality of pressing wheel parts, the first conveying part is used for conveying a to-be-detected part and is provided with a detecting opening, and the collecting part is arranged above or below the first conveying part and corresponds to the detecting opening so as to collect image information of the to-be-detected part; the multiple pressing wheel components are arranged on the upper side of the first conveying component, can rotate relative to the rack and slide up and down relative to the rack, so that the pressing wheel components have first height positions and second height positions, the second height positions are higher than the first height positions, and at the first height positions, the pressing wheel components and the first conveying component are spaced or abut against each other; the pressing wheel component is configured to move towards the first height position at least under the action of the gravity of the pressing wheel component. According to the conveying detection assembly, the PCB can be flattened through the multiple pressing wheel components, and detection of the PCB is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a conveying testing component and an online testing device including the conveying testing component. Background Technology

[0002] With technological advancements, PCBs, as an indispensable component of electronic products, are gradually evolving towards miniaturization, density, and integration. Traditional manual defect detection can no longer meet the demands of PCB production in factories, making the replacement of manual labor by equipment an inevitable trend. In related technologies, defective products on PCBs are inspected and screened using data acquisition components. However, the warpage of PCBs affects the accuracy of these acquisition components. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, one objective of this utility model is to provide a conveying and testing assembly that can flatten a PCB board through multiple pressure roller components, reduce the warpage of the PCB board, and facilitate the testing of the PCB board.

[0005] Another objective of this invention is to provide an online testing device, which includes the aforementioned conveying and testing components.

[0006] According to an embodiment of the present invention, a conveying and detection assembly includes a frame, a first conveying component, at least one acquisition component, and multiple pressure roller components. The first conveying component is used to convey the workpiece to be detected along a first horizontal direction and has at least one detection port. The detection ports are spaced between the two ends of the first conveying component in the first horizontal direction. The acquisition component is disposed above or below the first conveying component and corresponds to one of the detection ports, so that the acquisition component is used to acquire image information of the workpiece to be detected at the corresponding detection port. The multiple pressure roller components are spaced apart along the first horizontal direction on the frame and are all disposed on the upper side of the first conveying component. At least one pressure roller component is provided on each side of the detection port in the first horizontal direction. Each pressure roller component can rotate relative to the frame. Each pressure roller component slides up and down with the frame to make each pressure roller component have a first height position and a second height position. The second height position is higher than the first height position. At the first height position, the pressure roller component is spaced apart from or abuts against the first conveying component. Each pressure roller component is configured to move towards the first height position at least under its own weight.

[0007] According to the conveying and detection assembly of this utility model embodiment, the PCB board can be flattened by multiple pressure roller components, reducing the warpage of the PCB board and facilitating the detection of the PCB board.

[0008] In addition, the conveying and detection assembly according to the above embodiments of this utility model may also have the following additional technical features:

[0009] In some examples, the first conveying component includes at least one conveying mechanism and at least one support plate. The at least one conveying mechanism includes a driving wheel, a driven wheel, and a conveyor belt. The conveyor belt is sleeved on the outside of the driving wheel and the driven wheel. The conveyor belt has a conveying section for carrying the test piece. The support plate is disposed on the frame and supported at the bottom of the conveying section. The pressure roller component is vertically opposite to the corresponding support plate, driving wheel, or driven wheel.

[0010] In some examples, the conveying mechanism is multiple and includes a first conveying mechanism and a second conveying mechanism, the first conveying mechanism and the second conveying mechanism being spaced apart along the first horizontal direction to define a detection port, each of the first conveying mechanism and the second conveying mechanism corresponding to at least one of the support plates and at least one of the pressure roller components.

[0011] In some examples, a portion of the conveyor belt of one of the conveying mechanisms is recessed upwards or downwards to form a groove, and the detection port is located at the opening of the groove.

[0012] In some examples, a portion of the conveyor belt of one of the conveying mechanisms is recessed to form a groove. One of the conveying mechanisms further includes two first support rollers, a second support roller, and a third support roller. The two first support rollers are spaced apart along the first horizontal direction on both sides of the groove. The second and third support rollers are vertically spaced apart and each is positioned above or below the first support rollers. The conveyor belt is wound around the side of the second support roller facing away from the first support roller, the side of the third support roller facing away from the first support roller, and the side of the first support roller facing away from the second support roller. The second support roller is located at the bottom of the groove, and the third support roller is located on the side of the second support roller facing away from the first support roller.

[0013] In some examples, the first conveying component has two detection ports, namely a first detection port and a second detection port; there are two acquisition components, namely a first acquisition component and a second acquisition component; there are multiple conveying mechanisms, including a first conveying mechanism and a second conveying mechanism; the first conveying mechanism and the second conveying mechanism are sequentially spaced along the first horizontal direction to define the first detection port; a portion of the conveyor belt of the second conveying mechanism is recessed downward to form a groove; the second detection port is located at the opening of the groove; the first acquisition component is located below the first detection port; a first supplementary lighting component is provided above the first detection port; the second acquisition component is located above the second detection port; a second supplementary lighting component is provided below the second detection port; and the second supplementary lighting component is accommodated in the groove.

[0014] In some examples, the plurality of said pressure roller components are configured to satisfy at least one of the following conditions:

[0015] Condition A1: The diameter of the pressure roller component adjacent to the detection port is less than or equal to the diameter of the pressure roller component farther from the detection port;

[0016] Condition A2: The spacing between the plurality of pressure roller components adjacent to the detection port in the first horizontal direction is less than or equal to the spacing between the plurality of pressure roller components far from the detection port in the first horizontal direction;

[0017] Condition A3: Each of at least two adjacent pressure roller components includes a plurality of rollers spaced apart along a second horizontal direction, and the rollers of two adjacent pressure roller components are staggered in the second horizontal direction, which is perpendicular to the first horizontal direction.

[0018] In some examples, multiple pressure roller components are configured to satisfy condition A3, with multiple rollers of two adjacent pressure roller components being staggered one by one, and at least one roller of one pressure roller component being inserted between two adjacent rollers of another pressure roller component.

[0019] In some examples, the conveying and detection assembly further includes a second conveying component, a first limiting component, a second limiting component, and a driving structure. The second conveying component is disposed on one side of the first conveying component in the first horizontal direction and is used to convey the workpiece to be detected toward the first conveying component along the first horizontal direction. The second conveying component includes a plurality of conveying components spaced apart along the first horizontal direction. Each conveying component is rotatably disposed on the frame. The second conveying component has a preset conveying area, which is spaced between the two ends of the conveying component in the second horizontal direction. The first limiting component and the second limiting component are sequentially disposed along the second horizontal direction, and at least one of them is configured as a movable limiting component. The movable limiting component is movable relative to the frame along the second horizontal direction. The driving structure is disposed on the frame and is used to drive the movable limiting component to move to push the workpiece to be detected toward the preset conveying area in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0020] In some examples, the conveying detection assembly further includes a detection component and an adjustment component. The detection component is located above one of the pressure roller components and is used to detect the change in height of the pressure roller component as it is pushed upward by the test piece. The pressure roller component corresponding to the detection component is located upstream of the detection port in the first horizontal direction. The acquisition component is mounted on the frame via the adjustment component. The adjustment component communicates with the detection component and is used to adjust the height of the acquisition component relative to the first conveying component based on the detection result of the detection component.

[0021] According to an embodiment of the present invention, the online detection device includes a housing and the aforementioned conveying and detection components. A portion of the first conveying component, the acquisition component, and the pressure roller component are all disposed within the housing. The downstream end of the first conveying component in the first horizontal direction is exposed outside the housing.

[0022] The online inspection device according to the present invention, by applying the aforementioned conveying and inspection components, can reduce the warpage of the PCB board, thereby improving the inspection accuracy and efficiency.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the online detection device in some embodiments of this utility model.

[0026] Figure 2 This is an isometric view of the conveying and detection component in some embodiments of this utility model (showing a partial structure).

[0027] Figure 3 This is a front view (showing partial structure) of the conveying and detection component in some embodiments of this utility model.

[0028] Figure 4 yes Figure 3 Top view of the embodiment.

[0029] Figure 5 This is an internal structural diagram of the online detection device in some embodiments of this utility model.

[0030] Figure 6 yes Figure 5 A magnified view (C) of the embodiment.

[0031] Figure 7 yes Figure 4 A magnified D-image of a portion of the embodiment.

[0032] Figure label:

[0033] The online testing equipment 1000 includes a conveying and testing component 100, a frame 10, a first conveying component 20, a conveying mechanism 21, a driving wheel 211, a driven wheel 212, a conveyor belt 213, a first support wheel 214, a second support wheel 215, a third support wheel 216, a groove 217, a first detection port 218, a second detection port 219, a first conveying mechanism 21a, a second conveying mechanism 21b, a support plate 22, a pressure roller component 30, a collection component 40, a first collection component 41, a second collection component 42, a supplementary lighting component 50, a first supplementary lighting component 51, a second supplementary lighting component 52, a second conveying component 60, a conveying element 61, a first limiting element 71, a second limiting element 72, a drive structure 80, a testing component 91, an adjusting component 92, a housing 200, a PCB board 300, and a first horizontal direction AA and a second horizontal direction BB. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0036] This invention proposes a conveying and testing assembly 100, which can flatten a PCB board through multiple pressure roller components 30, reducing the warpage of the PCB board and facilitating its testing. Additionally, an online testing device 1000 including the aforementioned conveying and testing assembly 100 is also proposed.

[0037] It is understood that this utility model is mainly used to reduce the warpage of PCB boards in order to facilitate PCB board inspection; of course, depending on the actual situation, this utility model can also be used for other plate-shaped components to be inspected.

[0038] like Figures 1 to 6 According to the embodiment of the present utility model, the conveying and detection component 100 includes a frame 10, a first conveying component 20, at least one acquisition component 40, and multiple pressure roller components 30.

[0039] The first conveying component 20 is used to convey the workpiece to be inspected along a first horizontal direction and has at least one detection port. The detection ports are spaced between the two ends of the first conveying component 20 in the first horizontal direction. The acquisition component 40 is located above or below the first conveying component 20 and corresponds to one detection port, so that the acquisition component 40 can acquire image information of the workpiece to be inspected at the corresponding detection port. In this way, when the conveying and inspection assembly 100 is working, the first conveying component 20 can convey the PCB board from one end to the other end along the first horizontal direction. During this conveying process, the PCB board can pass through the detection port, and the acquisition component 40 can acquire image information of the PCB board surface through the detection port, thereby screening out PCB boards that do not meet the requirements.

[0040] For example, there is one acquisition component 40 and one detection port, with the acquisition component 40 corresponding to the detection port; or there are multiple acquisition components 40 and multiple detection ports, with each acquisition component 40 corresponding to one detection port. For example, at least one acquisition component 40 is located above the first conveying component 20, and / or at least one acquisition component 40 is located below the first conveying component 20.

[0041] However, due to external forces or environmental influences during the manufacturing process, the PCB board may warp, affecting the acquisition of image information by the acquisition component 40. Therefore, multiple pressure roller components 30 can be provided to flatten the PCB board and reduce its warping.

[0042] Specifically, multiple pressure roller components 30 are spaced apart on the frame 10 along a first horizontal direction, and all multiple pressure roller components 30 are located above the first conveying component 20. Each pressure roller component 30 can rotate relative to the frame 10, and each pressure roller component 30 slides up and down with the frame 10 to give each pressure roller component 30 a first height position and a second height position, with the second height position being higher than the first height position. At the first height position, the pressure roller component 30 is spaced apart from or abuts against the first conveying component 20. Each pressure roller component 30 is configured to face at least under its own weight towards The first height position moves; thus, as the first conveying component 20 conveys the PCB board, the PCB board can enter between the multiple pressure roller components 20 and the first conveying component 20, and push and drive the pressure roller component 30 to move from the first height position to the second height position. The pressure roller component 30 has a tendency to move towards the first height position under its own gravity to press against the PCB board. Different pressure roller components 30 press against different positions on the PCB. The multiple pressure roller components 30 can cooperate to flatten the PCB board, which is convenient for the information collection component 40.

[0043] For example, for a single pressure roller component 30, the pressure roller component 30 can be configured to move toward a first height position only under its own weight; or, the pressure roller component 30 also includes at least one elastic element, which connects the frame 10 and the multiple pressure roller components 30 and has an elastic force that drives the multiple pressure roller components 30 to move downward. In this case, the pressure roller component 30 can be configured to move toward the first height position under the action of its own weight and the elastic force of the elastic element. In this way, the pressure roller component 30 can improve the flattening effect on the PCB board under the combined action of gravity and elastic force, and further reduce the warpage of the PCB board.

[0044] Furthermore, the detection port has an upstream side corresponding to one end of the first conveying component 20 along the first horizontal direction, and a downstream side corresponding to the other end of the first conveying component 20 along the first horizontal direction. Multiple pressure roller components 30 can be disposed on the upstream side of the detection port to flatten the PCB board as it passes through the detection port, facilitating information acquisition by the data acquisition component 40 of the PCB board. More preferably, at least one pressure roller component 30 is provided on each side of the detection port in the first horizontal direction. It can be understood that the PCB board at the detection port is flattened by pressure roller components 30 on both sides along the first horizontal direction to further reduce the warpage of the PCB board as it passes through the detection port.

[0045] In summary, the conveying and detection assembly 100 according to the present invention can flatten the PCB board through multiple pressure roller components 30, reduce the warpage of the PCB board, and facilitate the detection of the PCB board.

[0046] Optionally, the pressure roller component 30 is made of plastic to reduce damage to the PCB.

[0047] like Figure 6 In some embodiments of this utility model, the first conveying component 20 includes at least one conveying mechanism 21 and at least one support plate 22. When the pressure roller component 30 presses down on the PCB board, it will generate pressure on the conveying mechanism 21, affecting the operation of the conveying mechanism 21. At this time, the support plate 22 can support the conveying mechanism 21, ensuring the stable operation of the conveying mechanism 21. In addition, it can work with the pressure roller component 30 to further improve the flatness of the PCB board and reduce the warpage of the PCB board.

[0048] Specifically, at least one conveying mechanism 21 includes a driving wheel 211, a driven wheel 212, and a conveyor belt 213. The conveyor belt 213 is sleeved on the outside of the driving wheel 211 and the driven wheel 212. The driving wheel 211 rotates and transmits power to the conveyor belt 213. The driven wheel 212 cooperates to tension the conveyor belt 213, thereby improving the operational stability of the conveying mechanism 21. The conveyor belt 213 has a conveying section for carrying the workpiece to be tested. The conveying section can be understood as the portion of the conveyor belt 213 above the driving wheel 211 and the driven wheel 212. A support plate 22 is provided on the frame 10 and supports the bottom of the conveying section. The pressure roller component 30 is vertically opposite to the corresponding support plate 22. The support plate 22 supports the conveying section, preventing the conveyor belt 213 from being concave when carrying the PCB board, thus avoiding affecting the conveying of the PCB board and the flattening effect of the pressure roller component 30 on the PCB board. The pressure roller component 30 can further reduce the warpage of the PCB board.

[0049] Of course, depending on the actual situation, the pressure roller component 30 can also be positioned vertically opposite to the driving roller 211 and / or the driven roller 212. By cooperating vertically with the driving roller 211 and the driven roller 212, the warpage of the PCB board can be reduced.

[0050] It is understood that the multiple pressure roller components 30 can be configured such that: at least one pressure roller component 30 is vertically opposite to the corresponding support plate 22, so that the pressure roller component 30 cooperates with the support plate 22 to clamp the PCB board, so as to cooperate with other pressure roller components 30 to flatten the PCB board; and / or, at least one pressure roller component 30 is vertically opposite to the drive wheel 211, so that the pressure roller component 30 cooperates with the drive wheel 211 to clamp the PCB board, so as to cooperate with other pressure roller components 30 to flatten the PCB board; and / or, at least one pressure roller component 30 is vertically opposite to the driven wheel 212, so that the pressure roller component 30 cooperates with the driven wheel 212 to clamp the PCB board, so as to cooperate with other pressure roller components 30 to flatten the PCB board.

[0051] There are various ways to set the detection port on the first conveying component 20. The present invention specifically provides the following embodiments for description:

[0052] Implementation Method 1

[0053] like Figure 5 and Figure 6 The conveying mechanism 21 comprises multiple mechanisms, including a first conveying mechanism 21a and a second conveying mechanism 21b. The first conveying mechanism 21a and the second conveying mechanism 21b are spaced apart along a first horizontal direction to define a detection port. The acquisition component 40 can be positioned above or below the detection port to acquire image information from the upper or lower surface of the PCB board. Each of the first conveying mechanism 21a and the second conveying mechanism 21b corresponds to at least one support plate 22 and at least one pressure roller component 30 to ensure the flatness of the PCB board as it passes through the detection port, facilitating information acquisition by the acquisition component 40.

[0054] Implementation Method 2

[0055] like Figure 5 and Figure 6 In at least one of the conveyor belts 213 of the conveyor mechanism 21, a portion is recessed upwards or downwards to form a groove 217, with the detection port located at the opening of the groove 217. The acquisition component 40 can correspond to the opening of the groove 217 to acquire image information from the upper or lower surface of the PCB board. For example, a portion of the conveyor belt 213 is recessed upwards to form the groove 217, with the opening of the groove 217 facing downwards, and the corresponding acquisition component 40 is located below the first conveyor component 20; or, for another example, a portion of the conveyor belt 213 is recessed downwards to form the groove 217, with the opening of the groove 217 facing upwards, and the corresponding acquisition component 40 is located above the first conveyor component 20. Of course, to improve the image acquisition effect of the acquisition component 40, a supplementary lighting component 50 can be added. The supplementary lighting component 50 can be set inside the groove 217, with the acquisition component 40 and the supplementary lighting component 50 respectively located on opposite sides of the opening in the vertical direction, and respectively corresponding to the detection port. This helps to reduce the number of conveyor structures 21 required.

[0056] Implementation Method 3

[0057] like Figure 5 and Figure 6 The detection port includes a first detection port 218 and a second detection port 219. The first detection port 218 can be formed by the first conveying mechanism 21a and the second conveying mechanism 21b at intervals along a first horizontal direction. The second detection port 219 can be defined by a groove 217 formed by a portion of the conveyor belt 213 of one of the first conveying mechanisms 21a and 21b recessed upward or downward. The second detection port 219 is located at the opening of the groove 217. The collection component 40 includes a first collection component 41 and a second collection component 42. The first collection component 41 can be disposed above or below and corresponds to the first detection port 218. The second collection component 42 can be disposed on the side facing the opening of the groove 217 and corresponds to the second detection port 219.

[0058] like Figure 5 and Figure 6 In some embodiments of this utility model, a portion of the conveyor belt 213 of one of the conveying mechanisms 21 is recessed to form a groove 217. Specifically, the principle of forming the groove 217 is as follows: one of the aforementioned conveying mechanisms 21 further includes two first support wheels 214, a second support wheel 215, and a third support wheel 216. The two first support wheels 214 are spaced apart along a first horizontal direction. The second support wheels 215 and the third support wheels 216 are spaced apart vertically, with both the second support wheels 215 and the third support wheels 216 located above or below the first support wheels 214. The third support wheel 216 is located on the side of the second support wheel 215 facing away from the first support wheel 214. The conveyor belt 213 is wound around the second support wheel 214. The support wheel 215 is located on the side opposite to the first support wheel 214, the third support wheel 216 is located on the side opposite to the first support wheel 214, and the first support wheel 214 is located on the side opposite to the second support wheel 215. In this way, the transmission belt portion between the two first support wheels 214 and the second support wheel 215 can form a groove 217. In terms of spatial position, the second support wheel 215 is located at the bottom of the groove 217, and the two first support wheels 214 are spaced apart on both sides of the groove 217 along the first horizontal direction. By adjusting the distance relationship between the two first support wheels 214 and the second support wheel 215, the size and shape of the groove 217 can be changed to meet the setting requirements of the acquisition component 40 or the supplementary lighting component 50.

[0059] In conjunction with the foregoing, in some specific examples, the first support wheel 214 and the second support wheel 215 can be driven to rotate by the transmission belt 213, and the third support wheel 216 can be connected to a power source to actively drive the transmission belt 213 to operate.

[0060] like Figure 5 and Figure 6 In some embodiments of this utility model, the first conveying component 20 has two detection ports, namely the first detection port 218 and the second detection port 219. There are two acquisition components 40, namely the first acquisition component 41 and the second acquisition component 42. There are multiple conveying mechanisms 21, including a first conveying mechanism 21a and a second conveying mechanism 21b. The first conveying mechanism 21a and the second conveying mechanism 21b are arranged alternately along a first horizontal direction to define the first detection port 218. A portion of the conveyor belt 213 of the second conveying mechanism 21b is recessed downward to form a groove 217. The second detection port 219 is located at the opening of the groove 217. Through the aforementioned arrangement, image information can be acquired from the upper and lower surfaces of the PCB board respectively, thereby filtering out PCB boards that do not meet the requirements.

[0061] The first acquisition component 41 is located below the first detection port 218, and a first supplementary lighting component 51 is provided above the first detection port 218. The second acquisition component 42 is located above the second detection port 219, and a second supplementary lighting component 52 is provided below the second detection port 219. The second supplementary lighting component 52 is accommodated in the groove 217. During the operation of the conveying detection assembly 100, the PCB board can pass through the first detection port 218 and the second detection port 219 sequentially along the first horizontal direction. When at the first detection port 218, the first acquisition component 41 can acquire image information from the lower surface of the PCB board to detect defects on the lower surface of the PCB board, and the first supplementary lighting component 51 can supplement light for the first acquisition component 41 to improve the image information acquisition effect of the first acquisition component 41, thereby improving the detection efficiency. Similarly, when at the second detection port 219, the second acquisition component 42 can acquire image information from the upper surface of the PCB board to detect defects on the upper surface of the PCB board, and the second supplementary lighting component 52 can supplement light for the second acquisition component 42 to improve the image information acquisition effect of the second acquisition component 42.

[0062] In some embodiments of this invention, the plurality of pressure roller components 30 are configured to satisfy at least one of the following conditions:

[0063] Condition A1: The diameter of the pressure roller component 30 adjacent to the detection port is less than or equal to the diameter of the pressure roller component 30 farther from the detection port. Specifically, in the first example, the diameter of the pressure roller component 30 adjacent to the detection port is equal to the diameter of the pressure roller component 30 farther from the detection port. Multiple pressure roller components 30 can apply pressure to the PCB board evenly to reduce the degree of PCB board warping. In the second example, the diameter of the pressure roller component 30 adjacent to the detection port is smaller than the diameter of the pressure roller component 30 farther from the detection port. In this way, the pressure roller component 30 adjacent to the detection port can reduce its space occupation, providing room for the acquisition component 40 or the supplementary lighting component 50. In the third example, the diameter of the pressure roller component 30 gradually decreases in the direction adjacent to the detection port. In this way, the PCB board can first pass through the pressure roller components 30 from large to small, then through the detection port, and then through the pressure roller components 30 from small to large. This can effectively handle different degrees of warping and balance the pressure on the PCB board, ensuring the acquisition quality of the acquisition component 40.

[0064] Condition A2: The spacing between multiple pressure roller components 30 adjacent to the detection port in the first horizontal direction is less than or equal to the spacing between multiple pressure roller components 30 distant from the detection port in the first horizontal direction. Specifically, in the first example, the spacing between multiple pressure roller components 30 adjacent to the detection port in the first horizontal direction is equal to the spacing between multiple pressure roller components 30 distant from the detection port in the first horizontal direction, allowing the multiple pressure roller components 30 to apply pressure evenly to the PCB board, thereby reducing the warpage of the PCB board. In the second example, the spacing between multiple pressure roller components 30 adjacent to the detection port in the first horizontal direction is less than the spacing between multiple pressure roller components distant from the detection port. The spacing of the multiple pressure roller components 30 in the first horizontal direction allows them to be arranged densely near the detection port, reducing their space occupation and making way for the acquisition component 40 or the supplementary lighting component 50. In the third example, the spacing of the multiple pressure roller components 30 in the first horizontal direction gradually decreases in the direction near the detection port. In this way, the PCB board can first pass through the multiple pressure roller components 30 arranged from loose to dense, then through the detection port, and then through the multiple pressure roller components 30 arranged from dense to conveying. This can effectively handle warped parts of different degrees and balance the pressure on the PCB board, ensuring the acquisition quality of the acquisition component 40.

[0065] Condition A3: Each of at least two adjacent pressure roller components 30 includes a plurality of rollers spaced apart along a second horizontal direction. The rollers of two adjacent pressure roller components 30 are staggered in the second horizontal direction, which is perpendicular to the first horizontal direction. This arrangement can avoid structural interference between two adjacent pressure roller components 30 and improve the operational stability of the plurality of pressure roller components 30.

[0066] Furthermore, such as Figure 7 Multiple pressure roller components 30 are configured to satisfy condition A3, with the rollers of two adjacent pressure roller components 30 arranged in an alternating pattern, and at least one roller of one pressure roller component 30 being inserted between two adjacent rollers of another pressure roller component 30. This arrangement increases the density of the multiple pressure roller components 30, improves the flattening effect on the PCB board, and reduces the space occupied by the multiple pressure roller components 30, thereby improving space utilization.

[0067] like Figures 2 to 5 In some embodiments of this utility model, the conveying and detection assembly 100 further includes a second conveying component 60, a first limiting component 71, a second limiting component 72, and a driving structure 80.

[0068] The second conveying component 60 is located on one side of the first conveying component 20 in the first horizontal direction, and the second conveying component 60 is used to convey the workpiece to be tested toward the first conveying component 20 in the first horizontal direction. The second conveying component 60 includes a plurality of conveying components 61 spaced apart in the first horizontal direction, and each conveying component 61 is rotatably mounted on the frame 10. When it is necessary to test the PCB board, the plurality of conveying components 61 can rotate relative to the frame 10 to roll and convey the PCB board to the preset testing position, so that the acquisition component 40 can test the PCB board.

[0069] The conveying and detection assembly 100 is provided with a first limiting member 71 and a second limiting member 72. The second conveying component 60 has a preset conveying area, which is spaced between the two ends of the conveying component 61 in the second horizontal direction. It can be understood that the preset conveying area is spaced from one end of the conveying component 61 and from the other end of the conveying component 61. The PCB board is moved to the predetermined conveying area by the limiting member between the first limiting member 71 and the second limiting member 72, so that the second conveying component 60 can convey the PCB board to the preset detection position for detection.

[0070] Specifically, the first limiting member 71 and the second limiting member 72 are arranged sequentially along the second horizontal direction, and at least one of them is configured as a movable limiting member. The movable limiting member can move relative to the frame 10 along the second horizontal direction. The driving structure 80 is provided on the frame 10 and is used to drive the movable limiting member to move, so as to push the test piece to be tested to the preset conveying area in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. In other words, before the second conveying component 60 conveys the PCB board to the preset detection position, the PCB board can be driven to push to the preset conveying area along the second horizontal direction by the movable limiting member, so as to facilitate the second conveying component 60 to convey the PCB board to the preset detection position and improve the detection accuracy of the PCB board. Moreover, the first limiting member 71 and the second limiting member 72 can be stopped in the second horizontal direction to prevent the PCB board from falling off the second conveying component 60 and improve the conveying stability of the second conveying component 60.

[0071] As can be seen, the limiting action of the first limiting member 31 and the second limiting member 32 can adjust the position of the part to be tested in the second horizontal direction, facilitating subsequent testing of the part to be tested. Moreover, for parts to be tested of different widths conveyed to the second conveying component 60, it ensures good positional consistency in the second horizontal direction, preventing them from being pushed into the preset conveying area, so that they can be aligned for subsequent testing.

[0072] It should be understood that there are multiple ways to construct the movable limiting member; in the first example, the first limiting member 71 constitutes the movable limiting member, and the PCB board is pushed by the first limiting member 71 along the second horizontal direction; in the second example, the second limiting member 72 constitutes the movable limiting member, and the PCB board is pushed by the second limiting member 72; in the third example, both the first limiting member 71 and the second limiting member 72 constitute the movable limiting member, and the PCB board is pushed by the cooperation of the first limiting member 71 and the second limiting member 72.

[0073] It is also understood that the preset conveying area can be a region that remains constant, for example, the position of the preset conveying area relative to the frame 10 in the second horizontal direction and the width of the preset conveying area in the second horizontal direction remain constant; or, the preset conveying area can also be configured to be an area that can be adapted to the shape, size, etc. of the workpiece to be inspected, for example, the position of the preset conveying area relative to the frame 10 in the second horizontal direction and / or the width of the preset conveying area in the second horizontal direction can be adapted to the different size parameters of the workpiece to be inspected.

[0074] Furthermore, for ease of understanding, unless otherwise specified, the following embodiments are mainly described in conjunction with the second example.

[0075] According to the second example, such as Figure 2 The first limiting member 71 is fixed to the frame 10, and the second limiting member 72 is configured as a movable limiting member. It can be understood that when the PCB board enters the conveying structure, the first limiting member 71 and the second limiting member 72 restrict the PCB board to prevent it from falling off the second conveying component 60. Then, the second limiting member 72 is powered by the drive structure 80 to push the PCB board to the preset conveying area. Finally, multiple conveying components 61 convey the PCB board to the preset detection position, which facilitates the detection instrument to detect the PCB board and improves the detection accuracy.

[0076] Furthermore, the first limiting member 71 is disposed adjacent to one end of the plurality of conveying members 61 in the second horizontal direction; specifically, the plurality of conveying members 61 have two opposite ends along the second horizontal direction, and the first limiting member 71 is more adjacent to one end of the plurality of conveying members 61 relative to the other end of the plurality of conveying members 61, which facilitates the fixed setting of the first limiting member 71, and at the same time reduces the interference of the first limiting member 71 and the second limiting member 72 on the conveying space, which is beneficial to increasing the width of the space provided by the second conveying member 60 for conveying the item to be tested in the second horizontal direction, so that the second conveying member 60 can be used to convey more items of different specifications, and facilitates the entry of the item to be tested into the second conveying member 60.

[0077] In light of the foregoing, it is important to understand that the preset transport area is an area artificially defined to correspond to the preset detection position of the testing instrument. When the preset detection position of the testing instrument changes, the preset transport area is also adjusted accordingly. Based on this, the first limiting member 71 can be set at the edge of the preset transport area along the second horizontal direction away from the second limiting member 72. When the second transport component 60 transports the PCB board, the first limiting member 71 can guide the PCB board to the preset detection position, preventing the PCB board from deviating from the predetermined trajectory during transport.

[0078] like Figures 2 to 5 In some embodiments of this utility model, the conveying detection assembly 100 further includes a detection component 91 and an adjustment component 92. The detection component 91 can be used to detect the change in height of the pressure roller component 30 being pushed upward by the workpiece to be tested. The adjustment component 92 can adjust the height of the acquisition component 40 relative to the first conveying component 20 according to the detection result of the detection component 91. In this way, when the PCB board enters between the pressure roller component 30 and the conveying mechanism 21, the detection component 91 can obtain the thickness of the PCB board by detecting the change in height of the pressure roller component 30. The adjustment component 92 can adjust the relative position of the acquisition component 40 and the first conveying component 20 in the vertical direction according to the thickness of the PCB board, so that the acquisition component 40 can better acquire image information of the PCB board, which is beneficial to improving the image clarity. At the same time, it can enable the conveying detection assembly 100 to clearly acquire image information of workpieces of different thicknesses, and achieve reliable detection.

[0079] Specifically, the detection component 91 is located above one of the pressure roller components 30, and the pressure roller component 30 corresponding to the detection component 91 is located upstream of the detection port in the first horizontal direction. The acquisition component 40 is mounted on the frame 10 through the adjustment component 92, and the adjustment component 92 communicates with the detection component 91. When the PCB board enters between the pressure roller component 30 and the conveying mechanism 21, its thickness can be detected by the detection component 91, and the detection signal can be transmitted to the adjustment component 92. The adjustment component 92 then adjusts the relative position of the acquisition component 40 and the frame 10 in the vertical direction according to the detection signal, so that the acquisition component 40 can better acquire image information of the PCB board. Since the pressure roller component 30 corresponding to the detection component 91 is located upstream of the detection port in the first horizontal direction, the adjustment component 92 can use the time between the transfer of the workpiece to be tested from the detection component 91 to the detection port to adjust the acquisition component 40, so that the adjustment of the acquisition component 40 can be completed before the workpiece to be tested is transferred to the detection port.

[0080] Furthermore, in the first horizontal direction and from the upstream side to the downstream side of the detection port, multiple pressure roller components 30 are arranged at intervals, and the detection component 91 can be set above the first pressure roller component 30. This provides time for the adjustment component 92 to adjust the height position of the acquisition component 40 before the PCB board passes through the detection port, thereby improving fault tolerance.

[0081] like Figures 1 to 6 According to the embodiment of the present utility model, the online inspection device 1000 includes a housing 200 and the conveying and inspection component 100 in the above embodiment. By applying the aforementioned conveying and inspection component 100, the warpage of the PCB board can be reduced, thereby improving the inspection accuracy and inspection efficiency.

[0082] For example, the working principle of the online testing device 1000:

[0083] When the conveying and detection assembly includes the second conveying component 60, the PCB board enters the second conveying component 60. The first limiting member 71 and the second limiting member 72 are disposed in the second conveying component 60 to limit the PCB board from falling off the second conveying component 60. The first limiting member 71 is fixedly disposed in the second conveying component 60, and the second limiting member 72 is driven by the driving structure 80 to push the PCB board to the preset conveying area along the second horizontal direction to realize the position adjustment of the PCB board. Then, the second conveying component 60 conveys the PCB board to the first conveying component 20.

[0084] The PCB board enters the first conveying component 20, which transports it from one end to the other along a first horizontal direction. During this process, the PCB board first passes through the first conveying mechanism 21a, then enters between the pressure roller component 30 and the first conveying mechanism 21a. The pressure roller component 30 flattens the PCB board to reduce its warpage. The PCB board's pressure against the pressure roller component 30 drives it to move upwards from a first height position to a second height position. At this point, the detection component 91 detects the height change of the pressure roller component 30, thereby obtaining the thickness of the PCB board. The adjustment component 9... 2. The vertical positions of the first acquisition component 41 and the second acquisition component 42 can be adjusted according to the detection signal; then the PCB board can pass through the first detection port 218 between the first conveying mechanism 21a and the second conveying mechanism 21b, and the image information of the lower surface of the PCB board can be acquired with the cooperation of the first acquisition component 41 and the first supplementary light component 51; then the PCB board can pass through the second detection port 219 on the second conveying mechanism 21b, and the image information of the upper surface of the PCB board can be acquired with the cooperation of the second acquisition component 42 and the second supplementary light component 52, so as to facilitate the screening out of PCB boards that do not meet the requirements.

[0085] In addition, a position sensor 73 may be provided between the downstream side of the second conveying component 60 and the upstream side of the first conveying component 20. The position sensor 73 will transmit a signal to the acquisition component 40 after detecting that the PCB board is in place, so as to control the operation of the acquisition component 40.

[0086] In some embodiments of this utility model, a portion of the first conveying component 20, the collecting component 40, and the pressure roller component 30 are all housed within the housing 200, which reduces interference from the external environment and improves the operational stability of the online equipment. Meanwhile, the downstream end of the first conveying component 20 in the first horizontal direction is exposed outside the housing 200, facilitating the removal of defective PCBs by operators.

[0087] This invention connects with other PCB manufacturing equipment to achieve unmanned operation from the upstream process to the testing equipment. The PCB automatically flows into the testing equipment, where a high-precision camera (i.e., the acquisition component 40) rapidly detects defects in the product. This improves testing efficiency and accuracy; reduces human intervention and the possibility of damage; and reduces the need for personnel to handle the product, thus lowering labor costs.

[0088] This invention interfaces with the upstream equipment in the PCB manufacturing process. The PCB board automatically enters the online AVI inspection equipment via a transport track. Through automatic imaging by the camera, it accurately detects minute defects. Combined with the interactive software logic control, the test results are recorded and saved, enabling automatic tracking and tracing of defects on each PCB board. It also allows for rapid location of defects in NG (non-compliant) products, allowing for more intuitive manual defect handling.

[0089] The online inspection equipment 1000 adopts a linear structure design with feeding at one end and discharging at the other. The conveyor component 61 of the second conveying unit 60 is the transmission line connecting the equipment with the front-end equipment. This line uses roller shaft transmission, with a magnetic wheel installed at the end of each drive shaft. Utilizing the principle of magnetic force, adjacent roller shafts can rotate, achieving contactless shaft transmission and avoiding the friction and dust generation associated with belt conveyors.

[0090] Because the vertical position of the PCB board is uncertain when it flows from the front-end equipment into the conveyor 61, there may be positional errors when PCB boards of the same batch enter the second conveyor 60. Therefore, a PCB position adjustment baffle (i.e., the first limiting member 71) is designed and added to the second conveyor 60. When the PCB board flows into the second conveyor 60, the drive motor drives the roller shaft (i.e., the conveyor 61) to rotate, causing the PCB board to move forward. When the PCB board moves to the position of the first sensor 400, the first sensor 400 is triggered, the drive motor stops running, and the second conveyor 60 stops running. At this time, the drive motor of the second limiting member 72 starts running, driving the second limiting member 72 to start moving along the second horizontal direction, pushing the PCB board along the second horizontal direction.

[0091] When the PCB board is pushed into the preset conveying area, the edge positioning sensor 73 is triggered and blocked by the second limiting member 72. The second limiting member 72 then stops and reverses, returning to its initial position. Then, the second conveying component 60 starts operating, driving the PCB board forward. This ensures that regardless of the PCB board's width, as it flows into the second conveying component 60, it is uniformly pushed into the preset conveying area by the second limiting member 72. This guarantees that all PCB boards flow backward with the preset conveying area as the reference edge, ensuring consistency in their position when entering the rear detection area.

[0092] As the PCB board moves backward, it moves between the first conveyor component 20 and the pressure roller component 30, triggering the detection component 91 located there. Based on the measured thickness of the PCB board, the detection component 91 feeds back the data to the PLC. The adjustment component 92 then drives the first acquisition component 41 to automatically adjust its height relative to the upper surface of the PCB board, ensuring the clarity of the image captured by the first acquisition component 41 of the PCB surface. Simultaneously, as the PCB moves backward, the second sensor 500, which communicates with the acquisition component 40, is also triggered. This activates the first acquisition component 41 and the second acquisition component 42, initiating image acquisition of the PCB board's BOT (bottom surface) and TOP (top surface). The two belt sections of the first conveyor mechanism 21a and the second conveyor mechanism 21b are designed with plastic pressure rollers (i.e., pressure roller components 30). When the PCB board moves on the belt surface, the pressure rollers press the PCB board against the belt surface, preventing the PCB board from warping upward and ensuring that the PCB board is relatively parallel to the belt surface when passing through the BOT and TOP surface detection areas, thus improving detection accuracy. When the PCB completes the BOT and TOP surface inspections and moves to the downstream side of the second conveyor mechanism 21b, it triggers the third sensor 600 set here, and transmits the signal to the back-end docking equipment through software interaction.

[0093] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0094] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0095] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A conveying and detection assembly, characterized in that, include: frame; A first conveying component is used to convey the workpiece to be tested along a first horizontal direction and has at least one detection port, the detection ports being spaced between the two ends of the first conveying component in the first horizontal direction. At least one acquisition component is provided above or below the first conveying component and corresponds to one of the detection ports, so that the acquisition component is used to acquire image information of the object to be detected located at the corresponding detection port; Multiple pressure roller components are spaced apart along the first horizontal direction on the frame and are all located above the first conveying component. At least one pressure roller component is provided on each side of the detection port in the first horizontal direction. Each pressure roller component is rotatable relative to the frame and slides up and down with the frame to give each pressure roller component a first height position and a second height position. The second height position is higher than the first height position. At the first height position, the pressure roller component is spaced apart from or abuts against the first conveying component. Each pressure roller component is configured to move toward the first height position at least under its own weight.

2. The conveying and detection assembly according to claim 1, characterized in that, The first conveying component includes at least one conveying mechanism and at least one support plate. The at least one conveying mechanism includes a driving wheel, a driven wheel, and a conveyor belt. The conveyor belt is sleeved on the outside of the driving wheel and the driven wheel. The conveyor belt has a conveying section for carrying the test piece. The support plate is disposed on the frame and supported at the bottom of the conveying section. The pressure roller component is vertically opposite to the corresponding support plate, driving wheel, or driven wheel.

3. The conveying and detection assembly according to claim 2, characterized in that, The conveying mechanism comprises multiple mechanisms, including a first conveying mechanism and a second conveying mechanism. The first and second conveying mechanisms are spaced apart along the first horizontal direction to define one detection port. Each of the first and second conveying mechanisms corresponds to at least one support plate and at least one pressure roller component; and / or A portion of the conveyor belt of one of the conveying mechanisms is recessed upwards or downwards to form a groove, and the detection port is located at the opening of the groove.

4. The conveying and detection assembly according to claim 3, characterized in that, A portion of the conveyor belt of one of the conveying mechanisms is recessed to form a groove. The conveying mechanism further includes two first support rollers, a second support roller, and a third support roller. The two first support rollers are spaced apart along the first horizontal direction on both sides of the groove. The second and third support rollers are vertically spaced apart and each is positioned above or below the first support rollers. The conveyor belt wraps around the side of the second support roller facing away from the first support roller, the side of the third support roller facing away from the first support roller, and the side of the first support roller facing away from the second support roller. The second support roller is located at the bottom of the groove, and the third support roller is located on the side of the second support roller facing away from the first support roller.

5. The conveying and detection assembly according to claim 3, characterized in that, The first conveying component has two detection ports, which are designated as a first detection port and a second detection port, respectively. There are two acquisition components, which are designated as a first acquisition component and a second acquisition component, respectively. The conveying mechanism comprises multiple mechanisms, including a first conveying mechanism and a second conveying mechanism. The first conveying mechanism and the second conveying mechanism are arranged sequentially at intervals along the first horizontal direction to define the first detection port. A portion of the conveyor belt of the second conveying mechanism is recessed downward to form a groove. The second detection port is located at the opening of the groove. The first acquisition component is located below the first detection port. A first supplementary light component is provided above the first detection port. The second acquisition component is located above the second detection port. A second supplementary light component is provided below the second detection port. The second supplementary light component is accommodated in the groove.

6. The conveying and detection assembly according to claim 1, characterized in that, The plurality of pressure roller components are configured to satisfy at least one of the following conditions: Condition A1: The diameter of the pressure roller component adjacent to the detection port is less than or equal to the diameter of the pressure roller component farther from the detection port; Condition A2: The spacing between the plurality of pressure roller components adjacent to the detection port in the first horizontal direction is less than or equal to the spacing between the plurality of pressure roller components far from the detection port in the first horizontal direction; Condition A3: Each of at least two adjacent pressure roller components includes a plurality of rollers spaced apart along a second horizontal direction, and the rollers of two adjacent pressure roller components are staggered in the second horizontal direction, which is perpendicular to the first horizontal direction.

7. The conveying and detection assembly according to claim 6, characterized in that, The plurality of pressure roller components are configured to satisfy condition A3, wherein the plurality of rollers of two adjacent pressure roller components are staggered one by one, and at least one roller of one pressure roller component is inserted between two adjacent rollers of another pressure roller component.

8. The conveying and detection assembly according to claim 1, characterized in that, Also includes: The second conveying component is disposed on one side of the first conveying component in the first horizontal direction and is used to convey the test piece toward the first conveying component along the first horizontal direction. The second conveying component includes a plurality of conveying members spaced apart along the first horizontal direction. Each conveying member is rotatably disposed on the frame. The second conveying component has a preset conveying area, which is spaced between the two ends of the conveying member in the second horizontal direction. A first limiting member and a second limiting member are arranged sequentially along the second horizontal direction, and at least one of them is configured as a movable limiting member, which can move relative to the frame along the second horizontal direction. A driving structure is provided on the frame and is used to drive the movable limiting member to move so as to push the test piece to the preset conveying area in the second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction.

9. The conveying and detection assembly according to any one of claims 1-8, characterized in that, Also includes: A detection component is disposed above one of the pressure roller components and is used to detect the change in height of the pressure roller component being pushed upward by the test piece. The pressure roller component corresponding to the detection component is located upstream of the detection port in the first horizontal direction. An adjustment component is provided, wherein the acquisition component is mounted on the frame via the adjustment component, the adjustment component communicates with the detection component, and is used to adjust the height of the acquisition component relative to the first conveying component according to the detection result of the detection component.

10. An online detection device, characterized in that, The device includes a housing and a conveying and detection assembly according to any one of claims 1-9, wherein a portion of the first conveying component, the acquisition component, and the pressure roller component are all disposed within the housing, and the downstream end of the first conveying component in the first horizontal direction is exposed outside the housing.

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