Circuit board detection system and detection method thereof

By designing a circuit board detection system that includes optical identification parts and optical imaging components, the problem that existing systems cannot detect and distinguish qualified and unqualified circuit boards in all aspects is solved, and effective detection and classification processing of circuit boards is realized.

CN118758969BActive Publication Date: 2025-04-22NANJING NORMAL UNIVERSITY
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Patent Information

Application Number
CN202410959121.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-04-22
Estimated Expiration
2044-07-17

AI Technical Summary

Technical Problem

The existing circuit board detection system cannot conduct comprehensive inspections on the circuit boards, and cannot effectively distinguish between qualified and unqualified circuit boards.

Method used

A circuit board detection system is designed, including body components and detection components. The body assembly includes a base and a transmission member, and the detection assembly includes an adjustment member, a detection member and a marking member. The detection component uses optical identification parts and optical imaging parts for image acquisition and real-time detection, and the circuit boards are sent out separately according to the detection results.

Benefits of technology

All-round inspection of circuit boards is realized, and it can effectively distinguish qualified and unqualified circuit boards, and classify them through different processing processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a circuit board detection system and a detection method thereof, comprising a main body component including a base and a transmission component arranged on the base; the detection component including a bottom bracket arranged on the base, an auxiliary bracket arranged on the bottom bracket and a grabbing component arranged on the bottom bracket, and the auxiliary bracket is provided with a detection component; a real-time detection component is used to detect the circuit board outputted from the output end in real time and to feed back a signal with the circuit board entering to a data processing module; when the circuit board detection device detects the circuit board, an optical recognition component and an optical imaging component are started and an image of the circuit board located in an information collection area of ​​the optical imaging component is collected; a data processing module is used to process and analyze data according to the image information collected by the optical imaging component, and during the detection, the detection component can be used to detect various key elements of the circuit board, and at the same time, an adjustment component is used to classify and mark qualified and unqualified circuit boards and send them out.
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Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection, and in particular to a circuit board detection system and a detection method thereof. Background Art

[0002] A circuit board can be called a printed circuit board or a printed circuit board. The circuit board miniaturizes and visualizes the circuit, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Different electrical components will be arranged on the circuit board according to design requirements.

[0003] Chinese patent application No. 2019109390072 discloses a printed circuit board inspection device, including a frame, a conveying module, a roller module and a camera module; the frame includes a first frame and a second frame; the conveying module includes a feeding mechanism and a unloading mechanism; the roller module includes an upper roller group and a lower roller group, the lower roller group is rotatably arranged on the first frame, the upper roller group is arranged at the bottom end of the camera module, the lower roller group drives the printed circuit board through the second frame, and cooperates with the upper roller group to clamp and position the printed circuit board; the camera module is slidably arranged on the second frame, and is located directly above the lower roller group, but obviously, the circuit board inspection device is not convenient for Figure 2 The circuit board shown is subjected to a comprehensive inspection, which only serves to inspect the circuit board, without distinguishing and classifying qualified and unqualified circuit boards. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing circuit board detection system, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a circuit board detection system and a detection method thereof.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a circuit board detection system, comprising a main body component, including a base and a transmission component arranged on the base for transporting the circuit board; and a detection component, including an adjustment component arranged on the base for transporting the circuit board and a detection component cooperating with the adjustment component, the detection component is used to perform preliminary detection of the external shape and function of the circuit board; after passing through the detection component, the circuit board is sent out from different positions of the base according to the detection results.

[0008] As a preferred solution of the circuit board detection system of the present invention, wherein: the detection component includes an optical recognition component slidably arranged on a base, an optical imaging component arranged at the lower end of the optical recognition component, a real-time detection component arranged on the optical imaging component, and an image acquisition component electrically connected to the real-time detection component, when the circuit board detection device detects a circuit board, the optical imaging component is started and an image of the circuit board located in the information acquisition area of ​​the optical imaging component is acquired;

[0009] It also includes a data processing module, which performs data processing and analysis based on the image information collected by the optical imaging component.

[0010] As a preferred solution of the circuit board detection system of the present invention, the adjustment component includes a card slot opened on the base, a rotating roller rotatably connected in the card slot, and a receiving plate arranged on the outside of the rotating roller, a plurality of detection frames are arranged on the receiving plate, a grabbing piece for grabbing the circuit board is arranged in the detection frame, the detection component is horizontally placed above the card slot, and a marking component for marking unqualified circuit boards is arranged on the detection component.

[0011] As a preferred solution of the circuit board detection system described in the present invention, the marking component includes a pushing cylinder arranged next to the optical identification component, a marking sheet arranged on the pushing cylinder, and a roller rotatably connected to the marking sheet, a connecting plate is arranged on the marking sheet, a contact point head is arranged at the lower end of the connecting plate, and a power-on circuit is arranged at the rear end of the contact point head.

[0012] As a preferred solution of the circuit board detection system of the present invention, wherein: a bracket is arranged on the rotating roller, the bracket comprises three interconnected bracket frames, the angle between the three bracket frames is 60°, when only one of the bracket frames is located at the upper position, the bracket frame is flush with the surface of the base, the receiving plate is arranged on the outer surface of the bracket frame, and the receiving plate is provided with a matching groove for temporarily storing the circuit board;

[0013] Among them, the receiving plate is rotatably connected with a transfer rod, the transfer rod is rotatably connected with a taking clip, an adhesive plate is provided at the end of the taking clip, and a rotating part for driving the transfer rod and the taking clip to rotate is provided on the receiving plate.

[0014] As a preferred solution of the circuit board detection system of the present invention, wherein: a through slot is provided at one of the clamping edges of the taking clamp, a protruding slot corresponding to the through slot is provided on the detection frame, and an active friction wheel is provided at the notch position of the protruding slot;

[0015] Wherein, a blocking flexible layer is formed around the inner side of the detection frame, and the blocking flexible layer divides the detection frame into an upper layer and a lower layer, and the lower layer corresponds to the through slot.

[0016] As a preferred solution of the circuit board detection system of the present invention, wherein: a downward pressure coding component is provided on the marking sheet, and when the downward pressure coding component is performing coding operation, the circuit board is pressed down from the upper layer to the lower layer, and the push roller pushes the circuit board outward.

[0017] As a preferred solution of the circuit board detection system of the present invention, a conveying conveyor belt is arranged in the base, the conveying conveyor belt is close to the bottom of the bracket, an output conveyor belt corresponding to the extension groove is arranged on the base, and a storage box is also arranged in the base.

[0018] The present invention also includes a circuit board detection method, comprising:

[0019] Use the transmission parts in the circuit board inspection system to transport the circuit board to the base for subsequent inspection;

[0020] The circuit board is transported to the base by using the cooperation of the adjustment component and the taking clamp;

[0021] Using the real-time detection component to detect the circuit board output from the output end in real time and feed back the signal with the circuit board entering to the data processing module;

[0022] When the circuit board detection device detects the circuit board, the optical identification component and the optical imaging component are started to capture an image of the circuit board located in the information collection area of ​​the optical imaging component;

[0023] Using the data processing module to process and analyze the image information collected by the optical imaging component;

[0024] The downward pressure inkjet printing component performs inkjet printing on the qualified circuit board.

[0025] As a preferred solution of the circuit board detection method described in the present invention, the optical imaging component needs to use a camera to capture the circuit board during acquisition, and transmit the image acquisition information to the data processing module, and use the data processing module to analyze the image.

[0026] The beneficial effects of the present invention are as follows: when performing detection, the first motor on the detection frame located on the side of the bracket closest to the conveyor belt is started, the transfer rod is rotated out, and it is close to the conveyor belt position. At this time, the second motor is started, and the retrieval clamp is rotated to a horizontal position. At this time, the opening of the retrieval clamp faces the position where the circuit board is transported, and the retrieval clamp is closer to the surface position of the conveyor belt. When the conveyor belt transports the circuit board, it will be stuck on the retrieval clamp, and then the first motor and the second motor are reversed at the same time to retract the circuit board so that the circuit board remains in the detection frame, and then the rotating roller drives the bracket to rotate as a whole, so that one side of the bracket with the circuit board rotates to a position located on the surface of the base.

[0027] Then, the optical imaging component, the real-time detection component and the image acquisition component electrically connected to the real-time detection component are used for detection. Then, when it is detected that the circuit board is functioning normally, the downward pressure inkjet component is started and pressed down onto the circuit board to perform inkjet coding on the circuit board. Then, the circuit board is pressed down from the upper layer to the lower layer. Then, as the detection component continues to move, the roller at the rear end of the swing arm moves to the circuit board position, and the cylinder pushes the ear plate downward to make the roller contact with the circuit board. Then, the roller is started at this time, and the roller rotates to send the circuit board outward through friction. The circuit board moves outward from the passing slot and then moves to the extension slot. At this time, the active friction wheel is started to send the circuit board outward. Because the extension slot corresponds to the output conveyor belt, the circuit board will be sent to the output conveyor belt at this time to complete the detection and transportation of the circuit board.

[0028] When it is detected that the circuit board is unqualified, the downward pressure inkjet printer will not be used. At this time, the circuit board will still remain in the upper layer. At this time, the circuit board will not move outward from the detection frame even if it is moved by the roller.

[0029] Then, the unqualified circuit board will rotate to the position inside the card slot again as the bracket rotates. At this time, the first motor and the second motor are started again. At this time, the taking clamp drives the circuit board to be rotated out again. By rotating the taking clamp, the circuit board is placed in the storage box, and the unqualified circuit board is stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0031] Figure 1 It is a schematic diagram of the overall structure of the circuit board detection system of the present invention.

[0032] Figure 2This is a rear view of the overall structure of the circuit board detection system of the present invention.

[0033] Figure 3 It is a schematic cross-sectional view of the overall structure of the circuit board detection system of the present invention.

[0034] Figure 4 This is a schematic diagram of the installation state of the adjustment component of the circuit board detection system of the present invention.

[0035] Figure 5 The circuit board detection system of the present invention is described Figure 4 Enlarged schematic diagram of part A in the middle.

[0036] Figure 6 It is a bottom view schematic diagram of the optical identification component of the circuit board detection system of the present invention.

[0037] Figure 7 It is a schematic diagram of the taking clamp described in the circuit board detection system of the present invention.

[0038] Figure 8 This is a schematic diagram of the optical identification component of the circuit board detection system of the present invention.

[0039] In the figure, 100, main body component; 101, base; 102, transmission component; 200, detection component; 201, adjustment component; 202, detection component; 202a, optical recognition component; 202b, optical imaging component; 202c, real-time detection component; 202d, image acquisition component; 201a, card slot; 201b, rotating roller; 201c, receiving plate; 201d, detection frame; 300, marking component; 301, Push cylinder; 302, marking piece; 303, roller; 304, connecting plate; 305, contact point; 306, bracket; 400, transfer rod; 401, taking clamp; 402, rotating part; 403, passing slot; 404, extending slot; 405, active friction wheel; 406, blocking flexible layer; M, upper layer; N, lower layer; 407, downward pressure inkjet component; 408, conveyor belt; 409, output conveyor belt; 500, storage box. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0041] Example 1

[0042] Reference Figure 1-8, a circuit board detection system is provided, including a main component 100. In this embodiment, the main component 100 includes a base 101, the base 101 is fixedly arranged, and a transmission member 102 is also arranged on the upper end of the base 101. The transmission member 102 is used to receive the circuit board processed from the previous process for transportation.

[0043] Furthermore, the present invention also includes a detection component 200, which includes a frame arranged on the base 101, and an auxiliary bracket 306 is slidably connected to the frame, and the auxiliary bracket 306 is controlled to slide by a crawler.

[0044] Furthermore, a detection component 202 is also provided on the auxiliary bracket 306. The detection component 202 includes an optical identification component 202a slidably provided on the base 101 and an optical imaging component 202b provided at the lower end of the optical identification component 202a. A guide rail for the sliding movement of the optical identification component 202a is provided on the side of the base 101. The guide rail and the optical identification component 202a are connected by a drag chain to drive the horizontal sliding of the optical identification component 202a. The optical identification component 202a as a whole is a retractable and expandable mechanical claw, including a lower base 101 of the optical identification component 202a slidably connected to the guide rail, a first arm rotatably connected to the lower base 101, and a second arm hinged to the first arm. The rotation of the first arm is controlled by a motor, and the second arm is also controlled by a motor, so that the front end can be extended forward close to the base 101, and the optical imaging component 202b is provided at the end position of the second arm.

[0045] Furthermore, a real-time detection component 202c and an image acquisition component 202d electrically connected to the real-time detection component 202c are electrically connected to the optical imaging component 202b. When the circuit board detection device detects the circuit board, the optical imaging component 202b is started and the image of the circuit board located in the information acquisition area of ​​the optical imaging component 202b is acquired.

[0046] It also includes a data processing module, which performs data processing and analysis based on the image information collected by the optical imaging component 202b.

[0047] Preferably, in this embodiment, the optical identification element 202 a faces the base 101 .

[0048] Furthermore, in the present embodiment, the adjustment component 201 includes a slot 201a opened on the base 101, the slot 201a is opened along the length direction of the base 101, and in the present embodiment, the opening direction of the slot 201a is the transportation direction of the circuit board, and a rotating roller 201b is rotatably connected in the slot 201a, the rotating roller 201b is horizontally arranged, and one end is rotatably connected to the base 101 through a bearing, and the other end is directly connected to the stepper motor after the bearing is installed. The stepper motor drives the rotation of the rotating roller 201b, and the stepper motor is provided with an electronic control system, and the operator can drive the stepper motor to work or not through an external operation case.

[0049] Furthermore, a bracket 306 is provided on the outside of the rotating roller 201b. The bracket 306 is provided along the length direction of the rotating roller 201b, and in the present embodiment, the bracket 306 comprises three bracket 306 frames connected in sequence, the three bracket 306 frames surround the rotating roller 201b, the three bracket 306 frames form a triangular prism with a triangular cross-section, and the angle between every two adjacent bracket 306 frames is 60°. When the rotating roller 201b rotates, the bracket 306 frame will rotate accordingly, and when one and only one bracket 306 frame is located at the upper position, this bracket 306 frame is flush with the surface of the base 101.

[0050] Furthermore, a receiving plate 201c is provided on the outer surface of each bracket 306 frame, and the receiving plates 201c are equidistantly arranged along the length direction of the bracket 306 frame. A plurality of detection frames 201d are provided on the receiving plate 201c. Each detection frame 201d corresponds to a circuit board, and the outer edge of the detection frame 201d is as close to the frame of the receiving plate 201c as possible. The detection frame 201d and the receiving plate 201c are installed by bolts, so that the operator can install detection frames 201d of different numbers and arrangement densities as needed.

[0051] Furthermore, a grabbing member for grabbing a circuit board is provided in the detection frame 201d, and the main working position of the grabbing member is to grab the circuit board when the receiving plate 201c to which the grabbing member belongs is located inside the card slot 201a.

[0052] Preferably, in this embodiment, a conveyor belt 408 is provided in the base 101, the conveyor belt 408 connects the card slot 201a and the outside of the base 101, and is arranged in the horizontal direction. The conveyor belt 408 transports the circuit board from the outside to the base 101. The position of the conveyor belt 408 is set at a position close to the ground of the base 101 and is set at a position closer to the detection component 202. When observed from the right front side of the base 101, the conveyor belt 408 is set at the card slot 201a in the base 101. 01a is located at the lower right corner of the base 101, and in order to be able to send out the qualified circuit board, an output conveyor belt 409 corresponding to the extension slot 404 is provided at the upper position of the base 101, and the output conveyor belt 409 is located closer to the upper left position. The output conveyor belt 409 is also arranged in a horizontal direction as a whole, and one end of the output conveyor belt 409 extends outward for extending the circuit board outward. A storage box 500 is also provided in the base 101, and the storage box 500 is arranged at the lower left corner of the card slot 201a in the base 101.

[0053] Furthermore, the detection component 202 is horizontally placed above the card slot 201 a , and a marking component 300 for marking unqualified circuit boards is provided on the detection component 202 .

[0054] Furthermore, in the present embodiment, the marking component 300 includes a pushing cylinder 301 arranged beside the optical identification component 202a, the pushing cylinder 301 extends toward the bracket 306, a marking sheet 302 is also arranged on the pushing cylinder 301, an ear plate is arranged at the rear position of the marking sheet 302, and a roller 303 is arranged on the ear plate. After the pushing cylinder 301 pushes the marking sheet 302 downward, the roller 303 will abut against the circuit board, and the rotation of the roller 303 is driven by a micro motor arranged on the marking sheet 302, and the rotation of the roller 303 will push the circuit board outward.

[0055] Furthermore, a connecting plate 304 is provided on the marking sheet 302, and a contact point 305 is formed after the upper end of the connecting plate 304 is bent. A power-on circuit is provided at the rear end of the contact point 305, and the contact point 305 is connected to the circuit board to form a loop for detecting the power-on function of the circuit board.

[0056] Furthermore, a transfer rod 400 is rotatably connected to the receiving plate 201c, and the transfer rod 400 is rotatably connected to the frame position of the detection frame 201d. A taking clamp 401 is rotatably connected to the transfer rod 400. A long groove is opened at the frame position of the receiving plate 201c close to the detection frame 201d. The transfer rod 400 is normally stored in the long groove. One end of the transfer rod 400 is a free end, and the other end is connected through the first motor. The length of the transfer rod 400 is half of the single side length of the detection frame 201d.

[0057] The access clip 401 is rotatably connected to the side wall of the end of the transfer rod 400. The overall shape of the access clip 401 is a "door" shape, with one end open and the other end closed. An adhesive plate is provided at the end of the access clip 401. The purpose of the adhesive plate is to better grasp the circuit board.

[0058] Preferably, a rotating member 402 for driving the transfer rod 400 and the retrieval clamp 401 to rotate is provided on the receiving plate 201c. In this embodiment, the rotating member 402 includes a second motor provided at the end of the transfer rod 400, and the second motor is used to control.

[0059] When grabbing the circuit board, the first motor on the detection frame 201d on the bracket 306 on the side closest to the conveyor belt 408 is started, and the transfer rod 400 is rotated out to approach the position of the conveyor belt 408. At this time, the second motor is started to rotate the retrieval clamp 401 to a horizontal position. At this time, the opening of the retrieval clamp 401 is facing the position where the circuit board is transported, and the retrieval clamp 401 is closer to the surface position of the conveyor belt 408. When the conveyor belt 408 transports the circuit board, it will be stuck on the retrieval clamp 401. Then the first motor and the second motor are reversed at the same time to retract the circuit board so that the circuit board remains in the detection frame 201d. Then the rotating roller 201b drives the bracket 306 to rotate as a whole, so that one side of the bracket 306 with the circuit board rotates to a position located on the surface of the base 101, and then detection can be performed.

[0060] Furthermore, a through groove 403 is provided at one of the clamping edges of the taking clamp 401, and the edge of this clamping edge is connected through the groove 403, while the other clamping edge of the taking clamp 401 is a thin-walled plate with only a shallow groove provided at the inner wall position for auxiliary clamping of the circuit board.

[0061] Furthermore, an extension groove 404 corresponding to the through groove 403 is opened on the detection frame 201d, and an active friction wheel 405 is arranged in the groove position of the extension groove 404. Two active friction wheels 405 are rotatably arranged, respectively arranged on both sides of the groove of the extension groove 404, and the outer edge side of the active friction wheel 405 extends into the extension groove 404.

[0062] A blocking flexible layer 406 surrounds the inner side of the detection frame 201 d , and the blocking flexible layer 406 divides the detection frame 201 d into an upper layer M and a lower layer N, and the lower layer N corresponds to the through slot 403 .

[0063] Furthermore, a downward-pressing coding component 407 is provided on the marking sheet 302. When performing coding operation, the downward-pressing coding component 407 presses the circuit board from the upper layer M to the lower layer N, and then the roller 303 pushes the circuit board outward.

[0064] In this embodiment, the downward-pressing coding component 407 includes a coding tube disposed on the marking sheet 302 and a pneumatic telescopic rod at the rear end of the coding tube, and the pneumatic telescopic rod is used to drive the coding tube to be pressed downward.

[0065] The rest of the structure is the same as that of Example 1.

[0066] Operation process: During the inspection, the first motor on the detection frame 201d on the bracket 306 located on the side closest to the conveyor belt 408 is started, and the transfer rod 400 is rotated out to approach the position of the conveyor belt 408. At this time, the second motor is started to rotate the retrieval clamp 401 to a horizontal position. At this time, the opening of the retrieval clamp 401 faces the position where the circuit board is transported, and the retrieval clamp 401 is closer to the surface position of the conveyor belt 408. When the conveyor belt 408 transports the circuit board, it will be stuck on the retrieval clamp 401. Then the first motor and the second motor are reversed at the same time to retract the circuit board so that the circuit board remains in the detection frame 201d. Then the rotating roller 201b drives the bracket 306 to rotate as a whole, so that the side of the bracket 306 with the circuit board rotates to a position located on the surface of the base 101.

[0067] Then, the optical imaging component 202b, the real-time detection component 202c and the image acquisition component 202d electrically connected to the real-time detection component 202c are used for detection. Then, when it is detected that the circuit board functions normally, the downward pressure inkjet component 407 is started and pressed down onto the circuit board to perform inkjet coding on the circuit board. Then, the circuit board is pressed down from the upper layer M to the lower layer N. Then, as the detection component 202 continues to move, the roller 303 at the rear end of the swing rod moves to the circuit board position, and the cylinder pushes the ear plate downward to make the roller 303 contact the circuit board. Then, the roller 303 is started at this time, and the roller 303 rotates to send the circuit board outward through friction. The circuit board moves outward from the through slot 403 and then moves to the extension slot 404. At this time, the active friction wheel 405 is started to send the circuit board outward. Because the extension slot 404 corresponds to the output conveyor belt 409, the circuit board will be sent to the output conveyor belt 409 at this time, completing the detection and transportation of the circuit board.

[0068] When it is detected that the circuit board is unqualified, the downward pressure inkjet printer 407 will not be used. At this time, the circuit board still remains in the upper layer M. At this time, even if the circuit board is moved by the roller 303, it will not move outward from the detection frame 201d.

[0069] Then, the unqualified circuit board will rotate to the position inside the card slot 201a again as the bracket 306 rotates. At this time, the first motor and the second motor are started again. At this time, the taking clip 401 drives the circuit board to rotate out again. By rotating the taking clip 401, the through slot 403 of the taking clip 401 is directed toward the storage box 500. At this time, due to gravity, the circuit board passes through the through slot 403 and falls into the storage box 500, thereby completing the storage of the unqualified circuit board.

[0070] Example 2

[0071] This embodiment also discloses a circuit board detection method, comprising the following steps:

[0072] S1: First, the circuit board is transported by using the conveyor belt 408.

[0073] S1: Then the first motor on the detection frame 201d on the bracket 306 located on the side closest to the conveyor belt 408 is started, and the transfer rod 400 is rotated out to approach the position of the conveyor belt 408. At this time, the second motor is started to rotate the retrieval clamp 401 to a horizontal position. At this time, the opening of the retrieval clamp 401 is facing the position where the circuit board is transported, and the retrieval clamp 401 is closer to the surface position of the conveyor belt 408. When the conveyor belt 408 transports the circuit board, it will be stuck on the retrieval clamp 401. Then the first motor and the second motor are reversed at the same time to retract the circuit board so that the circuit board remains in the detection frame 201d. Then the rotating roller 201b drives the bracket 306 to rotate as a whole, so that the side of the bracket 306 with the circuit board rotates to a position located on the surface of the base 101. At this time, the circuit board is in a state to be detected.

[0074] S2: using the real-time detection component 202c to detect the circuit board output from the output end in real time and feed back the signal with the circuit board entering to the data processing module;

[0075] S3: When the circuit board detection device detects the circuit board, the optical identification component 202a and the optical imaging component 202b are started to capture an image of the circuit board located in the information collection area of ​​the optical imaging component 202b;

[0076] S4: Using the data processing module to perform data processing and analysis based on the image information collected by the optical imaging component 202b.

[0077] S5: The optical imaging component 202b needs to use a camera to capture the circuit board during acquisition, and transmit the image acquisition information to the data processing module, and use the data processing module to analyze the image and input it back to the circuit detection equipment.

[0078] S6: After the inspection is completed, the circuit boards are classified and placed according to whether they are qualified. The qualified ones are sent out through the output conveyor belt 409, and the unqualified ones are stored in the storage box 500.

[0079] S7: Finally, the output conveyor belt 409 is used to continue transporting the inspected circuit board.

[0080] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0081] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0082] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A circuit board detection system, characterized in that: include, A main body component (100) comprises a base (101) and a transmission member (102) arranged on the base (101) for transporting a circuit board; and, A detection component (200) comprising an adjustment component (201) arranged on a base (101) for transporting a circuit board and a detection component (202) cooperating with the adjustment component (201), wherein the detection component (202) is used to perform a preliminary detection on the external shape and function of the circuit board; After passing through the detection component (202), the circuit board is respectively sent out from different positions of the base (101) according to the detection situation; the adjustment component (201) comprises a card slot (201a) provided on the base (101), a rotating roller (201b) rotatably connected to the card slot (201a), and a receiving plate (201c) arranged outside the rotating roller (201b); the detection component (202) is horizontally arranged above the card slot (201a); the detection component (202) is provided with a marking component (300) for marking unqualified circuit boards; and the receiving plate (201c) is provided with a detection frame (201d); Wherein, a transfer rod (400) is rotatably connected to the receiving plate (201c), and a taking clamp (401) is rotatably connected to the transfer rod (400); A through slot (403) is provided at one of the clamping edges of the access clamp (401), a protruding slot (404) corresponding to the through slot (403) is provided on the detection frame (201d), and an active friction wheel (405) is provided at the notch position of the protruding slot (404); The detection frame (201d) is surrounded by a barrier flexible layer (406) on its side, and the barrier flexible layer (406) divides the detection frame (201d) into an upper layer (M) and a lower layer (N), and the lower layer (N) corresponds to the through slot (403). A downward-pressing coding component (407) is provided on the marking sheet (302). When performing coding operation, the downward-pressing coding component (407) presses the circuit board from the upper layer (M) to the lower layer (N), and the roller (303) pushes the circuit board outward.

2. The circuit board detection system according to claim 1, characterized in that: The detection component (202) comprises an optical recognition component (202a) slidably disposed on the base (101), an optical imaging component (202b) disposed at the lower end of the optical recognition component (202a), a real-time detection component (202c) disposed on the optical imaging component (202b), and an image acquisition component (202d) electrically connected to the real-time detection component (202c); when the circuit board detection system detects a circuit board, the optical imaging component (202b) is activated and an image of the circuit board located in an information acquisition area of ​​the optical imaging component (202b) is acquired; It also includes a data processing module, which performs data processing and analysis based on the image information collected by the optical imaging component (202b).

3. The circuit board detection system according to claim 1, characterized in that: The marking component (300) comprises a pushing cylinder (301) arranged beside the optical identification component (202a), a marking sheet (302) arranged on the pushing cylinder (301), and a roller (303) rotatably connected to the marking sheet (302); a connecting plate (304) is arranged on the marking sheet (302); a contact point (305) is arranged at the lower end of the connecting plate (304); and a power-on circuit is arranged at the rear end of the contact point (305).

4. The circuit board detection system according to claim 1, characterized in that: A bracket (306) is arranged on the rotating roller (201b), and the bracket (306) comprises three interconnected bracket (306) frames, and the angle between the three bracket (306) frames is 60 degrees. When one and only one of the bracket (306) frames is located at the upper position, the bracket (306) frame is flush with the surface of the base (101), and the receiving plate (201c) is arranged on the outer surface of the bracket (306) frame. An adhesive plate is arranged at the end of the access clamp (401), and a rotating member (402) for driving the transfer rod (400) and the access clamp (401) to rotate is arranged on the receiving plate (201c).

5. The circuit board detection system according to claim 1, characterized in that: The transmission member (102) comprises a conveyor belt (408) arranged in the base (101), the conveyor belt (408) being close to the bottom of the bracket (306), an output conveyor belt (409) corresponding to the extension groove (404) being arranged on the base (101), and a storage box (500) being further arranged in the base (101). Also includes, Using a transmission component (102) in a circuit board detection system to transport the circuit board into a base (101) to prepare for subsequent detection; The circuit board is transported to the base (101) by utilizing the cooperation of the adjustment component (201) and the taking clamp (401); Using a real-time detection component (202c) to detect the circuit board output from the output end in real time and feeding back a signal having the circuit board entered to a data processing module; When the circuit board detection system detects a circuit board, the optical identification component (202a) and the optical imaging component (202b) are activated, and an image of the circuit board located in an information collection area of ​​the optical imaging component (202b) is collected; Using a data processing module to perform data processing and analysis based on image information collected by the optical imaging component (202b); The downward pressure coding component (407) performs coding processing on the qualified circuit board; The optical imaging component (202b) needs to use an internal camera to take pictures of the circuit board during acquisition, transmit the picture acquisition information to the data processing module, and use the data processing module to analyze the image.

Citation Information

Patent Citations

  • Video imaging auxiliary device and imaging method

    CN116242828A