Appearance detection equipment for fpc (fpc) soft board

Abstract

The utility model relates to the technical field of detection equipment, and discloses fpc soft board appearance detection equipment which comprises a workbench, a conveying assembly is arranged on the workbench, a detection assembly used for detecting the appearance of fpc is arranged above the conveying assembly, and an illumination assembly is arranged between the detection assembly and the conveying assembly. A lifting assembly is arranged on one side of the detection assembly, an adsorption assembly is arranged on the lifting assembly, and the conveying assembly, the detection assembly, the lighting assembly, the lifting assembly and the adsorption assembly are connected with a control box arranged on the workbench. According to the invention, appearance detection is carried out on the front and back surfaces of the fpc through the detection assembly, and the fpc is overturned by using the lifting assembly and the adsorption assembly instead of manual work, so that the overall detection precision and detection efficiency are higher, appearance detection can be carried out on the pfc soft board continuously for 24 hours, the continuity of the production process is ensured, and the production efficiency and the productivity are improved.

Description

Technical Field

[0001] This application relates to the technical field of testing equipment, and more particularly to an FPC flexible printed circuit board appearance testing device. Background Technology

[0002] In actual FPC (Flexible Printed Circuit) appearance inspection, it is usually not only the front side that needs to be inspected, but also the back side. Various appearance defects may exist on both the front and back sides of the FPC, and these defects will affect the performance and quality of the FPC. For example, the front side may have problems such as scratches on the circuit and poor soldering of components, while the back side may have defects such as exposed copper foil and damaged insulation layer. By inspecting the front and back sides of the FPC in a timely manner, the generation of defective products can be effectively reduced and production efficiency can be improved.

[0003] However, the current method of inspecting the front and back of FPC flexible circuit boards involves manually flipping them over for inspection, which is cumbersome and time-consuming and cannot meet the needs of rapid inspection in large-scale production. At the same time, during manual inspection, due to factors such as operator fatigue and visual errors, it is difficult to maintain consistent standards for judging appearance defects (such as minor scratches and solder joint defects) on the front and back, resulting in unstable inspection accuracy.

[0004] Therefore, there is an urgent need for an FPC flexible circuit board appearance inspection device to solve the above problems.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Utility Model Content

[0006] The main purpose of this application is to provide an FPC flexible circuit board appearance inspection device to solve the problems that are easy to cause instability in the inspection when manually inspecting the appearance of the front and back sides of FPC flexible circuit boards, which affects production and sales.

[0007] To achieve the above objectives, this application provides an FPC (Flexible Printed Circuit) appearance inspection device, including a workbench, a conveying assembly on the workbench, an inspection assembly for inspecting the appearance of the FPC above the conveying assembly, an illumination assembly between the inspection assembly and the conveying assembly, a lifting assembly on one side of the inspection assembly, and an adsorption assembly on the lifting assembly. The conveying assembly, the inspection assembly, the illumination assembly, the lifting assembly, and the adsorption assembly are connected to a control box disposed on the workbench.

[0008] As a preferred embodiment of this application, the conveying assembly consists of two first synchronous belt assemblies with a gap between them, and the two first synchronous belt assemblies are coaxially connected to a first motor mounted on the workbench.

[0009] As a preferred embodiment of this application, it further includes a second synchronous belt assembly, which is disposed in the gap and connected to a second motor disposed on the worktable.

[0010] As a preferred embodiment of this application, the lifting assembly includes a guide frame, a third motor, a lead screw, and a mounting frame. The third motor is connected to the control box. The guide frame is provided on the workbench, and the third motor is disposed in the guide frame. One end of the lead screw is connected to the third motor, and the other end of the lead screw is rotatably connected to the guide frame. The mounting frame passes through the guide frame and is connected to the lead screw. The adsorption assembly is disposed on the mounting frame.

[0011] As a preferred embodiment of this application, the adsorption assembly includes a fourth motor, a mounting plate, an air pump, and a suction cup. The fourth motor is electrically connected to the control box and is mounted on the mounting frame. The output shaft of the fourth motor is connected to the mounting plate. The air pump is mounted at one end of the mounting plate, and the output end of the air pump passes through the mounting plate and is connected to the suction cup. The air pump is wirelessly connected to the control box.

[0012] As a preferred embodiment of this application, the lighting assembly includes a ring bracket and LED beads. A circuit board is disposed on the ring bracket, and a plurality of LED beads are integrated on the circuit board. The circuit board is electrically connected to the control box.

[0013] As a preferred embodiment of this application, it also includes a shielding component, which includes a protective cover, a hinge, and a cabinet door. The protective cover is connected to the workbench, one end of the protective cover is connected to the hinge, and the other end of the hinge is connected to the cabinet door.

[0014] As a preferred embodiment of this application, the protective cover is provided with a feed inlet and a discharge outlet, and a display screen is provided on one side of the protective cover at the feed inlet, and the display screen is electrically connected to the control box.

[0015] As a preferred embodiment of this application, the workbench also includes foot pads, and a plurality of foot pads are provided on the bottom of the workbench.

[0016] As a preferred embodiment of this application, it also includes a three-color indicator light, which is provided on the protective cover and electrically connected to the control box.

[0017] This application provides an FPC (Flexible Printed Circuit) appearance inspection device. By importing a preset program into a control box, the control box controls the conveying component to move the FPC below the inspection component. The inspection component then inspects the appearance of the FPC, avoiding inspection errors caused by human fatigue and improving inspection accuracy. Simultaneously, a lifting component and an adsorption component replace manual handling to flip the PFC, avoiding direct contact between human hands and machinery. The flipped FPC is then conveyed by the conveying component to the inspection component for back-side inspection. If the inspection is successful, the FPC is conveyed out again. The entire inspection process is more intelligent, enabling 24-hour uninterrupted appearance inspection of PFCs, ensuring production continuity and improving production efficiency and capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an FPC flexible circuit board appearance inspection device according to one embodiment of this application;

[0019] Figure 2 This is a cross-sectional view of an FPC flexible circuit board appearance inspection device according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the lifting component and the adsorption component in an FPC flexible circuit board appearance inspection device according to an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the conveying component in an FPC flexible circuit board appearance inspection device according to one embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the lighting component in an FPC flexible circuit board appearance inspection device according to one embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Workbench; 2. Conveying assembly; 3. Detection assembly; 4. Lifting assembly; 5. Lighting assembly; 6. Adsorption assembly; 7. Control box; 8. First motor; 9. Protective cover; 10. Hinge; 11. Box door; 12. Display screen; 13. Foot pads; 14. Three-color indicator light; 15. Second synchronous belt assembly; 16. Second motor;

[0025] 401. Guide frame; 402. Mounting frame; 501. Ring bracket; 502. LED lamp beads; 601. Fourth motor; 602. Mounting plate; 603. Air pump; 604. Suction cup. Detailed Implementation

[0026] The embodiments of this application 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 application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] Furthermore, descriptions using terms such as "first" and "second" in this application are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed in this application.

[0028] Please refer to Figure 1 , Figure 2 In one embodiment, an FPC flexible circuit board appearance inspection device includes a workbench 1, a conveying component 2 is provided on the workbench 1, an inspection component 3 for inspecting the appearance of the FPC is provided above the conveying component 2, an illumination component 5 is provided between the inspection component 3 and the conveying component 2, a lifting component 4 is provided on one side of the inspection component 3, and an adsorption component 6 is provided on the lifting component 4. The conveying component 2, the inspection component 3, the illumination component 5, the lifting component 4, the adsorption component 6 are connected to a control box 7 provided on the workbench 1.

[0029] Preferably, the detection component 3 includes a camera, an optical lens system, and an image processing unit. The camera is used to take pictures of the FPC flexible board and compare them with the pre-stored images, thereby realizing the detection of the front and back sides of the FPC flexible board.

[0030] An FPC (Flexible Printed Circuit) appearance inspection device, in use, imports a preset program into a control box 7, which then controls a conveying component 2 to move the FPC below an inspection component 3. The inspection component 3 then inspects the appearance of the FPC, avoiding inspection errors caused by human fatigue and improving inspection accuracy. Simultaneously, according to the time settings in the preset program, the inspection component 3 uses an image-based lifting component 4 and an adsorption component 6 to flip the FPC, eliminating direct contact between human hands and the machinery. The flipped FPC is then conveyed by the conveying component 2 back to the inspection component 3 for inspection of the reverse side. If the inspection is successful, the FPC is then conveyed out again by the conveying component 2. The entire inspection process is more intelligent, enabling 24-hour uninterrupted appearance inspection of FPCs, ensuring production continuity and improving production efficiency and capacity.

[0031] Specifically, please refer to Figure 2 , Figure 4 Based on the above embodiments, the conveying component 2 is composed of two first synchronous belt components with a gap between them. The two first synchronous belt components are coaxially connected to the first motor 8 set on the worktable 1. At the same time, it also includes a second synchronous belt component 15, which is disposed in the gap. The second synchronous belt component 15 is connected to the second motor 16 set on the worktable 1.

[0032] It is understood that both the first synchronous belt assembly and the second synchronous belt assembly 15 consist of a drive wheel, a rotating shaft, and a conveyor belt. The two drive wheels are connected by a conveyor belt. The control box 7 controls the second synchronous belt assembly 15 to transport the FPC flexible board that has completed quality inspection to the outside of the equipment, thus realizing intelligent conveying.

[0033] Specifically, please refer to Figure 2 , Figure 3 Based on the above embodiments, the lifting assembly 4 includes a guide frame 401, a third motor, a lead screw, and a mounting frame 402. The third motor is connected to the control box 7. The guide frame 401 is provided on the workbench 1. The third motor is provided in the guide frame 401. One end of the lead screw is connected to the third motor, and the other end of the lead screw is rotatably connected to the guide frame 401. The mounting frame 402 passes through the guide frame 401 and is connected to the lead screw. The adsorption assembly 6 is provided on the mounting frame 402.

[0034] It is understandable that using the precise thread transmission on the lead screw to achieve the lifting and lowering action of the adsorption component 6 results in higher overall movement accuracy and enables the adsorption component 6 to be moved to the height position specified by the program.

[0035] Specifically, please refer to Figure 2 , Figure 3Based on the above embodiments, the adsorption component 6 includes a fourth motor 601, a mounting plate 602, an air pump 603, and a suction cup 604. The fourth motor 601 is electrically connected to the control box 7. The fourth motor 601 is mounted on the mounting frame 402. The output shaft of the fourth motor 601 is connected to the mounting plate 602. One end of the mounting plate 602 is provided with the air pump 603. The output end of the air pump 603 passes through the mounting plate 602 and is connected to the suction cup 604. The air pump 603 is wirelessly connected to the control box 7.

[0036] It is understandable that the control box 7 and the air pump 603 are wirelessly paired; for example, using Bluetooth or WiFi connection. After successful pairing, the two establish a communication channel, and the control box 7 sends control commands wirelessly to coordinate the operation of the air pump 603. In the whole process, the transmission of wireless signals replaces the signal transmission of wired connections, which can avoid the phenomenon of entanglement of wired connections during the rotation of the air pump 603. The commands issued by the control box 7 are transmitted to the control unit of the air pump 603 through the wireless communication network. The control unit of the air pump 603 parses the commands and executes the corresponding operations. Through the above settings, the adsorption and release of the FPC flexible board can be realized. Combined with the rotation of the lifting component 4 and the fourth motor 601, the FPC flexible board can be flipped. The mechanical equipment replaces the manual flipping of the FPC flexible board, making the overall operation safer.

[0037] Specifically, please refer to Figure 2 , Figure 5 Based on the above embodiments, the lighting component 5 includes an annular bracket 501 and LED beads 502. A circuit board is provided on the annular bracket 501, and a number of LED beads 502 are integrated on the circuit board. The circuit board is electrically connected to the control box 7.

[0038] It is understandable that by setting up several LED beads 502, an illumination effect can be provided during the detection process to ensure that the detection component 3 can capture clear images.

[0039] Specifically, please refer to Figure 1 , Figure 2 Based on the above embodiments, a shielding component is also included. The shielding component includes a protective cover 9, a hinge 10, and a door 11. The protective cover 9 is connected to the workbench 1. One end of the protective cover 9 is connected to the hinge 10, and the other end of the hinge 10 is connected to the door 11.

[0040] It is understandable that by setting up the protective cover 9, the mechanical equipment can be wrapped up, which can play a certain protective role and prevent workers from accidentally touching the operating equipment and getting injured. At the same time, it can also play a relatively sealed role, preventing the internal mechanical equipment from being contaminated by dust and other contaminants.

[0041] Specifically, please refer to Figure 1 , Figure 2 Based on the above embodiments, the protective cover 9 is provided with a feed inlet and a discharge outlet. A display screen 12 is provided on one side of the protective cover 9 at the feed inlet, and the display screen 12 is electrically connected to the control box 7.

[0042] It is understandable that by setting up the display screen 12, one can observe the operating parameters and status of the equipment. At the same time, the display screen 12 is equipped with several buttons and an emergency stop button, etc. These buttons, in conjunction with the display screen 12, can be used to adjust the control parameters to ensure the normal operation of the equipment.

[0043] Specifically, please refer to Figure 1 Based on the above embodiments, it also includes foot pads 13, and a plurality of foot pads 13 are provided on the bottom of the workbench 1.

[0044] It is understood that the foot pad 13 is an adjustable height threaded foot pad 13. In actual use, the ground on which the equipment is placed may not be completely level, and the foot pad 13 can be adjusted to a certain extent to be level; by adjusting the height of the foot pad 13, the testing equipment can be kept in a level state.

[0045] Specifically, based on the above embodiments, a three-color indicator light 14 is also included. The protective cover 9 is provided with a three-color indicator light 14, and the three-color indicator light 14 is electrically connected to the control box 7.

[0046] It is understandable that by setting the three-color indicator light 14, the test results can be fed back in a timely manner, and the defective FPC flexible boards can be processed in a timely manner.

[0047] In summary, when using an FPC flexible circuit board appearance inspection device, the conveying component 2 transports the FPC flexible circuit board to the inspection position, and the inspection component 3 begins frontal inspection. Image acquisition is performed via a camera, acquiring the appearance image of the FPC flexible circuit board according to set parameters. Then, image preprocessing, feature extraction, and defect judgment are performed. If no defects are determined, the control box 7 controls the conveying component 2 to move the FPC flexible circuit board to the first preset position and stop. At this time, the control box 7 instructs the fourth motor 601 to rotate counterclockwise 180°. Subsequently, the lifting component 4 brings the suction cup 604 into contact with the surface of the FPC flexible circuit board, and the air pump 603 performs suction, using the suction cup 604 to hold the FPC flexible circuit board. After suction is complete, the lifting component 4 lifts the FPC flexible circuit board. When the FPC flexible circuit board is lifted to the first preset height, the control box 7 controls the fourth motor 601 to rotate counterclockwise 180°. The four motors 601 rotate 360°, and then the lifting assembly 4 lowers the FPC board. When the front of the FPC board contacts the conveying assembly 2, the control box 7 controls the air pump 603 to release air. At this time, the suction cup 604 no longer adsorbs the FPC board. The lifting assembly 4 drives the adsorption assembly 6 to return to the initial position. The control box 7 controls the conveying assembly 2 to convey in the opposite direction, moving the back-side-up FPC board to the underside of the detection assembly 3 for detection. If there are no defects in the back side, the control box 7 instructs the FPC board on the conveying assembly 2 to be conveyed to the second synchronous belt assembly 15. The second synchronous belt assembly 15 conveys the FPC board that has completed the front and back side quality inspection to the outside of the protective cover 9 for collection. At this time, the three-color indicator light 14 will show a green light signal after the FPC board on both sides is conveyed to the outside.

[0048] During the quality inspection of both the front and back sides, if the component 3 being inspected is determined to be defective, the control box 7 will trigger the three-color indicator light 14 to provide audible and visual (red light signal) alarm signals. The defective FPC board will remain on the conveyor assembly 2, waiting for manual opening of the box door 11 to remove it, and then proceed with the quality inspection of the next FPC board.

[0049] The above settings can greatly reduce the workload of workers in quality inspection, effectively avoid quality inspection problems caused by human fatigue and subjective judgment. At the same time, the entire appearance inspection process is automated, requiring no worker participation throughout the process, which can meet the needs of rapid inspection in large-scale production.

[0050] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0051] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An FPC flexible printed circuit board appearance inspection device, characterized in that, The device includes a workbench, on which a conveying assembly is mounted. Above the conveying assembly is a detection assembly for inspecting the appearance of an FPC. A lighting assembly is located between the detection assembly and the conveying assembly. A lifting assembly is located on one side of the detection assembly, and an adsorption assembly is mounted on the lifting assembly. The conveying assembly, the detection assembly, the lighting assembly, the lifting assembly, and the adsorption assembly are connected to a control box mounted on the workbench.

2. The FPC flexible printed circuit board appearance inspection device according to claim 1, characterized in that, The conveying assembly consists of two first synchronous belt assemblies with a gap between them, and the two first synchronous belt assemblies are coaxially connected to a first motor mounted on the workbench.

3. The FPC flexible printed circuit board appearance inspection device according to claim 2, characterized in that, It also includes a second synchronous belt assembly, which is disposed in the gap and is connected to a second motor disposed on the worktable.

4. The FPC flexible printed circuit board appearance inspection device according to claim 1, characterized in that, The lifting assembly includes a guide frame, a third motor, a lead screw, and a mounting frame. The third motor is connected to the control box. The guide frame is provided on the workbench, and the third motor is provided in the guide frame. One end of the lead screw is connected to the third motor, and the other end of the lead screw is rotatably connected to the guide frame. The mounting frame passes through the guide frame and is connected to the lead screw. The adsorption assembly is provided on the mounting frame.

5. The FPC flexible printed circuit board appearance inspection device according to claim 4, characterized in that, The adsorption assembly includes a fourth motor, a mounting plate, an air pump, and a suction cup. The fourth motor is electrically connected to the control box and is mounted on the mounting frame. The output shaft of the fourth motor is connected to the mounting plate. The air pump is mounted at one end of the mounting plate, and the output end of the air pump passes through the mounting plate and is connected to the suction cup. The air pump is wirelessly connected to the control box.

6. The FPC flexible printed circuit board appearance inspection device according to claim 1, characterized in that, The lighting assembly includes a ring-shaped bracket and LED beads. A circuit board is mounted on the ring-shaped bracket, and a plurality of LED beads are integrated on the circuit board. The circuit board is electrically connected to the control box.

7. The FPC flexible printed circuit board appearance inspection device according to claim 1, characterized in that, It also includes a shielding assembly, which includes a protective cover, a hinge, and a cabinet door. The protective cover is connected to the workbench, one end of the protective cover is connected to the hinge, and the other end of the hinge is connected to the cabinet door.

8. The FPC flexible circuit board appearance inspection device according to claim 7, characterized in that, The protective cover has an inlet and an outlet. A display screen is provided on one side of the inlet on the protective cover, and the display screen is electrically connected to the control box.

9. The FPC flexible printed circuit board appearance inspection device according to claim 1, characterized in that, It also includes foot pads, and several foot pads are provided on the bottom of the workbench.

10. The FPC flexible printed circuit board appearance inspection device according to claim 8, characterized in that, It also includes a three-color indicator light, which is installed on the protective cover and electrically connected to the control box.

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