Visual inspection device for circuit board processing

Abstract

The invention provides a visual detection device for circuit board processing, which comprises a workbench, a visual detection assembly is arranged at the top of the workbench, the visual detection assembly comprises a visual detection module and an annular track, the annular track is arranged above the workbench, and the visual detection module is slidably arranged at the bottom of the annular track; a lighting assembly is further arranged at the top of the workbench and comprises a visual recognition module and four recognition layers, the top of the workbench is connected with a top plate through four supporting columns, the four recognition layers are arranged at the bottom of the top plate, and the visual recognition modules are correspondingly arranged below the four recognition layers; an overturning assembly is arranged at the top of the workbench, conveying belts used for conveying circuit boards are arranged on the two sides of the workbench, and suction cup manipulators are arranged on one sides of the two conveying belts; the visual detection module moves along the annular track to detect the circuit board, the problem that the visual detection range of a traditional visual detection device is limited is solved, and the detection comprehensiveness is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of circuit board detection, and more specifically, particularly relates to a visual detection device for circuit board processing. Background Art

[0002] In the modern electronics industry, circuit boards are the core components of electronic products, and their quality directly affects the performance and reliability of electronic products. With the rapid development of electronic technology, the manufacturing process of circuit boards is becoming increasingly complex, and the requirements for testing the processing quality of circuit boards are also becoming higher and higher.

[0003] For example, the Chinese invention patent with patent number 202110142320.0 provides a dual-station circuit board visual inspection system. When the visual inspection system is in use, the upper camera unit performs displacement movement under the driving force of the upper power drive unit to alternately align with the left circuit board carrying unit or the right circuit board carrying unit, thereby completing the imaging operation of the circuit board carried thereon. When the circuit board carried by the carrying unit completes the imaging operation, it will return to its original position to facilitate the staff to replace the circuit board; however, the camera unit of the traditional visual inspection device moves in a straight line and can often only be inspected from a single angle, which limits the visual inspection range. For some complex circuit board structures, it is impossible to perform a full-scale inspection of the circuit board, and some potential defects are easily missed; and traditional lighting systems usually use multiple lamps for illumination from different angles, and cannot provide lighting according to detection requirements, resulting in energy waste. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a visual inspection device for circuit board processing to solve the technical problems in the prior art that the camera part of the traditional visual inspection device moves in a straight line, the visual inspection range is limited, and the circuit board cannot be inspected in all directions; and the lighting system usually uses multiple lamps to illuminate from different angles, and cannot provide lighting according to the inspection requirements, resulting in energy waste.

[0005] The purpose and effect of the visual inspection device for circuit board processing of the present invention are achieved by the following specific technical means:

[0006] A visual inspection device for processing circuit boards, comprising a workbench, a visual inspection component is arranged on the top of the workbench, the visual inspection component includes a visual inspection module and an annular track, the annular track is arranged above the workbench, and the visual inspection module is slidably arranged at the bottom of the annular track; a lighting component is also arranged on the top of the workbench, the lighting component includes a visual recognition module and four groups of recognition layers, the top of the workbench is connected to a top plate through four groups of support columns, four groups of recognition layers are arranged at the bottom of the top plate, and the visual recognition modules are arranged correspondingly below the four groups of recognition layers; a flipping component is arranged on the top of the workbench, conveyor belts for transporting circuit boards are arranged on both sides of the workbench, and suction cup manipulators are arranged on one side of two groups of conveyor belts.

[0007] In a preferred embodiment, the bottom of the top plate is connected to the annular track via a connecting column, a fixing plate is provided at the bottom end of the connecting column, two groups of through holes are provided on the annular track and the fixing plate, and two groups of screws pass through four groups of through holes and are fixedly connected to the bottom of the connecting column respectively; the visual detection component also includes an L-shaped mounting plate, and a plurality of groups of rotatable pulleys are provided at the bottom of the L-shaped mounting plate, and the plurality of groups of pulleys are all located in the annular track.

[0008] In a preferred embodiment, an inner gear ring is provided on the inner side of the annular track, a mounting hole is provided on the top of the L-shaped mounting plate, a movable motor is provided on the top of the mounting hole, a movable gear is provided on the bottom of the mounting hole, a main shaft of the movable motor passes through the mounting hole and is connected to the movable gear, and the movable gear is meshed with the inner gear ring.

[0009] In a preferred embodiment, a connecting plate is provided at the bottom of the L-shaped mounting plate, two groups of first rotating seats are provided on one side of the connecting plate, a rotatable assembly part is provided between the two groups of the first rotating seats, the visual inspection module is clamped at one end of the assembly part, an angle adjustment motor is provided on one side of one group of the first rotating seats, and the main shaft of the angle adjustment motor is connected to the assembly part.

[0010] In a preferred embodiment, the lighting assembly also includes four groups of lighting lamps, and adjacent sides of the four groups of support columns are provided with inclined surfaces, and the four groups of inclined surfaces are respectively provided with four groups of lighting lamps; the four groups of identification layers are ring-shaped and are distributed corresponding to the four groups of lighting lamps, respectively, and the visual identification module is provided on the top of the L-shaped mounting plate, and the visual identification module is located at the bottom of one of the groups of identification layers.

[0011] In a preferred embodiment, a mounting seat is connected to one end of the lighting lamp, a second rotating seat is arranged on the inclined surface, a fixing hole is provided on one side of the mounting seat, a fixing rod is passed through the fixing hole, a mounting cavity is provided at one end of the fixing rod, a first spring is provided in the mounting cavity, an adjusting rod is connected to one end of the first spring, a plurality of groups of slots are provided on one side of the second rotating seat, a fixing protrusion on one side of the adjusting rod is clamped in one group of the slots, a through slot is provided at one end of the mounting cavity, a rectangular rod is provided at one end of the adjusting rod, and the rectangular rod is passed through the through slot.

[0012] In a preferred embodiment, a slide groove is provided on one side of the inclined surface, a card plate is provided in the slide groove, and multiple groups of cards are provided on one side of the card plate, a slidable moving block is sleeved on the card plate, a card block is provided in the moving block, one end of the card block is in contact with one of the groups of cards, a second spring is provided between the inner side of the moving block and the card block, the card block is rotatably connected to the moving block through a rotating rod, and a beating piece is provided at one end of the rotating rod; one end of the illuminating lamp is connected to a mounting seat, a through fixing hole is provided on one side of the mounting seat, a fixing rod is penetrated in the fixing hole, one end of the fixing rod is provided with an installation cavity, a first spring is provided in the installation cavity, and one end of the first spring is connected to an adjusting rod, two groups of connecting members are provided on one side of the moving block, and multiple groups of card grooves are provided on one side of one group of the connecting members, a fixing protrusion on one side of the adjusting rod is clamped in one group of the card grooves, a through through slot is provided at one end of the installation cavity, and a rectangular rod is provided at one end of the adjusting rod, and the rectangular rod is penetrated in the through slot.

[0013] In a preferred embodiment, the flipping assembly includes a linear guide mechanism and a screw slide mechanism, and the linear guide mechanism and the screw slide mechanism are arranged on the top of the workbench. The sliders of the linear guide mechanism and the screw slide mechanism are respectively connected with a first support frame and a second support frame by multiple sets of screws, and a clamping tool for fixing the circuit board is arranged between the first support frame and the second support frame.

[0014] In a preferred embodiment, a plurality of groups of fixed airbags in contact with the circuit board are arranged on the inner side of the clamping tool, air passages are opened on the clamping tool corresponding to the plurality of groups of fixed airbags, an air nozzle connected with the air passage is arranged on one side of the clamping tool, a first mounting groove is opened on the top of the first support frame, an air pump is arranged in the first mounting groove, and the air outlet of the air pump is connected to the air nozzle through a pipeline.

[0015] In a preferred embodiment, two groups of connecting seats are respectively provided on both sides of the clamping tool, one group of the connecting seats is fixedly connected to a first connecting head by screws, one end of the first connecting head is rotatably connected to the first support frame, a limiting plate is provided at one end of the first connecting head, and a limiting column is correspondingly provided on one side of the first support frame; the other group of the connecting seats is fixedly connected to a second connecting head by screws, a second mounting slot is opened on the top of the second support frame, a flip motor is provided in the second mounting slot, and the main shaft of the flip motor is connected to one end of the second connecting head.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the setting of the visual inspection component, when the device is used, an inner gear ring is set on the inner side of the circular track, and the moving gear is rotated by starting the moving motor. Since the moving gear is meshed with the inner gear ring, the visual inspection module installed at the bottom of the L-shaped mounting plate can move along the circular track; at the same time, by starting the angle adjustment motor to rotate the assembly part, the orientation angle of the visual inspection module can be flexibly adjusted to ensure that the visual inspection module can be accurately aligned with the circuit board, solving the problem of limited visual inspection range of traditional visual inspection devices and improving the comprehensiveness and accuracy of inspection; the L-shaped mounting plate moves on the circular track through multiple sets of pulleys configured at the bottom, which improves the smoothness of the movement of the visual inspection module and reduces jamming and friction; in addition, the connecting column at the top of the circular track not only plays a role of connection and support, but also can serve as a limiting component to prevent the visual inspection module from rotating all the time during the movement, thereby avoiding entanglement with surrounding wires and other components, and ensuring the stability of the inspection process.

[0018] 2. Through the setting of the visual recognition module and four groups of recognition layers, when using the device, a visual recognition module is set on the top of the L-shaped mounting plate. The visual recognition module identifies the four groups of recognition layers to determine the position of the visual inspection module on the circular track, thereby controlling the lighting in the corresponding direction to turn on. This solves the problem that the lighting system of the traditional visual inspection device cannot provide lighting according to the inspection needs, and realizes the on-demand supply of lighting, which not only saves energy consumption and reduces operating costs, but also improves the pertinence and effectiveness of lighting, helps to obtain clearer inspection images, thereby improving the accuracy of inspection.

[0019] 3. Through the setting of the adjustment rod and multiple groups of card slots, when using the device, the lighting direction of the lighting lamp can be flexibly adjusted; the user only needs to press the rectangular rod at one end, so that the fixed protrusion on one side of the adjustment rod will be disengaged from one of the current groups of card slots, so that the lighting angle of the lighting lamp can be freely adjusted, fully meeting the lighting angle requirements of different detection scenarios; in addition, through the setting of the first spring, when the user releases the rectangular rod, the adjustment rod will automatically return to its position under the elastic force of the first spring, so that the fixed protrusion will be accurately snapped back into one of the groups of card slots, ensuring stability after adjustment.

[0020] 4. Through the setting of the air pump and multiple groups of fixed air bags, when using the device, by starting the air pump, the air outlet of the air pump will transport gas to the air nozzle through the pipeline, and then the gas will inflate the multiple groups of fixed air bags through the airway, so that the circuit board can be flexibly fixed from multiple directions. This fixing method can not only effectively ensure the stability of the position of the circuit board and avoid displacement during the detection process, but also protect the product surface of the circuit board to the greatest extent; due to the use of flexible fixation, the risk of damage caused by the fixing operation is effectively reduced, and the integrity and safety of the circuit board during the detection process are guaranteed.

[0021] 5. Through the setting of the flipping component, when the device is used, after the inspection of one side of the circuit board is completed, the flipping motor is started to flip the clamping tool. In this way, it is possible to quickly switch to the other side of the circuit board for inspection, thereby improving the efficiency of inspection and saving inspection time. In addition, through the setting of the limit plate and the limit column, the flipping angle can be limited so that the clamping tool can only be flipped 180 degrees. This limitation ensures the accuracy and standardization of the inspection process, and can also avoid the situation where related pipelines are disconnected due to the unlimited flipping of the clamping tool, thereby ensuring the stability of the device operation and reducing the risk of equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the structure of the first embodiment of the present invention after assembly;

[0023] Figure 2 is a schematic diagram of the structure of the first embodiment of the present invention after expansion;

[0024] Figure 3 It is a schematic diagram of the structure of the visual detection component after assembly in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure after the visual detection component of the present invention is disassembled;

[0026] Figure 5 is a schematic diagram of the structure of the lighting assembly in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure after the lighting lamp and the second rotating seat are assembled in the present invention;

[0028] Figure 7 yes Figure 6 Schematic diagram of the structure after splitting;

[0029] Figure 8 It is a schematic diagram of the structure after the flip assembly of the present invention is assembled;

[0030] Fig. 9 yes Figure 8 Schematic diagram of the structure after splitting;

[0031] Fig.10 yes Fig. 9 A magnified schematic diagram of area a in the middle;

[0032] Fig.11 It is a schematic diagram of the structure after the limiting plate and the first connector are separated in the present invention;

[0033] Fig.12 is a cross-sectional view of the clamping tool in the present invention;

[0034] Fig.13 is a schematic diagram of the structure of the lighting assembly in the second embodiment of the present invention;

[0035] Fig.14 yes Fig.13 Schematic diagram of the structure after splitting;

[0036] Fig.15 yes Fig.14 A magnified schematic diagram of area b.

[0037] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0038] 101, workbench; 102, support column; 103, top plate; 104, circuit board; 105, conveyor belt; 106, suction cup manipulator; 201, visual inspection module; 202, circular track; 203, connecting column; 204, fixing plate; 205, L-shaped mounting plate; 206, pulley; 207, inner gear ring; 208, mounting hole; 209, mobile motor; 210, mobile gear; 211, connecting plate; 212, first rotating seat; 213, assembly part; 214, angle adjustment motor; 301, visual recognition module; 302, recognition layer; 303, lighting lamp; 304, inclined plane; 305, mounting seat; 306, second rotating seat; 307, fixing hole; 308, fixing rod; 309, mounting cavity; 310, first spring ; 311, adjusting rod; 312, rectangular rod; 313, slide groove; 314, clamping plate; 315, clamping tooth; 316, moving block; 317, clamping block; 318, rotating rod; 319, breaking piece; 320, clamping groove; 321, connecting piece; 322, second spring; 401, linear guide mechanism; 402, screw slide mechanism; 403, first support frame; 404, second support frame; 405, clamping tool; 406, fixed airbag; 407, airway; 408, air nozzle; 409, first mounting groove; 410, air pump; 411, pipeline; 412, connecting seat; 413, first connector; 414, limit plate; 415, limit column; 416, second connector; 417, second mounting groove; 418, flip motor. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but cannot be used to limit the protection scope of the present invention.

[0040] Embodiment 1:

[0041] As attached Figures 1 to 12 As shown:

[0042] The present invention provides a visual inspection device for circuit board processing, including a basic structure of a workbench 101, a visual inspection component is arranged on the top of the workbench 101, and the visual inspection component includes a visual inspection module 201 and a ring track 202. The ring track 202 is arranged above the workbench 101, and the visual inspection module 201 is slidably arranged at the bottom of the ring track 202; the visual inspection module 201 can select the ESP32-cam model of the Huaner brand; in addition, a lighting component is also configured on the top of the workbench 101, and the lighting component includes a visual recognition module 301 and Four groups of identification layers 302, the top of the workbench 101 is connected to the top plate 103 through four groups of support columns 102, four groups of identification layers 302 are arranged at the bottom of the top plate 103, and visual identification modules 301 are correspondingly arranged under the four groups of identification layers 302; at the same time, the top of the workbench 101 is also equipped with a flipping component, and conveyor belts 105 for transporting circuit boards 104 are arranged on both sides of the workbench 101, and suction cup manipulators 106 are installed on one side of the two groups of conveyor belts 105; in addition, a background plate is set at the detection position on the top of the workbench 101 to provide the best background environment for visual detection.

[0043] Please refer to Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the top plate 103 is connected to the annular track 202 through a connecting column 203, and a fixing plate 204 is arranged at the bottom of the connecting column 203. Two groups of through holes are opened on the annular track 202 and the fixing plate 204, and two groups of screws pass through four groups of through holes and are fixedly connected to the bottom of the connecting column 203 respectively; this structure not only reliably connects and supports the annular track 202, but also the top of the connecting column 203 plays a limiting role. When the visual inspection module 201 slides on the annular track 202, the connecting column 203 can prevent it from rotating all the time to avoid being entangled with surrounding wires and other components, thereby ensuring the stability of the entire inspection process.

[0044] The visual inspection component also includes an L-shaped mounting plate 205, and a plurality of sets of rotatable pulleys 206 are arranged at the bottom of the L-shaped mounting plate 205. These pulleys 206 are all located in the annular track 202, so that the L-shaped mounting plate 205 can move smoothly on the annular track 202 through the pulleys 206 at the bottom, which not only improves the movement smoothness of the visual inspection module 201, but also reduces the jamming and friction during the movement, further ensuring the stability and reliability of the inspection process.

[0045] Please refer to Figure 3 and Figure 4As shown, an inner gear ring 207 is provided on the inner side of the annular track 202, a mounting hole 208 is opened on the top of the L-shaped mounting plate 205, and a moving motor 209 and a moving gear 210 are respectively provided at the top and bottom of the mounting hole 208; the main shaft of the moving motor 209 passes through the mounting hole 208 and is connected with the moving gear 210; by starting the moving motor 209 to rotate the moving gear 210, since the moving gear 210 is meshed with the inner gear ring 207, the visual inspection module 201 installed at the bottom of the L-shaped mounting plate 205 can move along the annular track 202, which solves the problem of limited inspection range of traditional visual inspection devices and improves the comprehensiveness and accuracy of inspection.

[0046] Please refer to Figure 4 As shown, a connecting plate 211 is provided at the bottom of the L-shaped mounting plate 205, and two groups of first rotating seats 212 are installed on one side of the connecting plate 211, and a rotatable assembly part 213 is provided between the two groups of first rotating seats 212, and a visual inspection module 201 is fixed on one end of the assembly part 213; an angle adjustment motor 214 is also provided on one side of one group of first rotating seats 212, and the main shaft of the angle adjustment motor 214 is connected to the assembly part 213; by starting the angle adjustment motor 214, the assembly part 213 can be driven to rotate, thereby flexibly adjusting the orientation angle of the visual inspection module 201, so that the visual inspection module 201 can be aligned with the circuit board 104 for inspection, further improving the comprehensiveness of the inspection.

[0047] Please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the lighting assembly also includes four groups of lighting lamps 303, and the adjacent sides of the four groups of support columns 102 are each provided with an inclined surface 304, and the four groups of inclined surfaces 304 are respectively provided with four groups of lighting lamps 303; at the same time, the four groups of identification layers 302 are distributed in a ring shape and correspond to the four groups of lighting lamps 303 respectively. On the other hand, a visual identification module 301 is also provided on the top of the L-shaped mounting plate 205, and the visual identification module 301 can be the K210 model of the Yabo smart brand; and the visual identification module 301 is located at the bottom of one group of identification layers 302; by identifying the four groups of identification layers 302 through the visual identification module 301, it can The current position of the visual detection module 201 on the circular track 202 is determined. The four sets of recognition layers 302 can use stickers of different colors. The visual recognition module 301 recognizes different colors to determine the current position of the visual detection module 201, thereby controlling the lighting lamp 303 in the corresponding direction to turn on. This solves the problem that the lighting system of the traditional visual detection device cannot provide lighting according to actual needs, and realizes the on-demand supply of lighting, which not only saves energy consumption and reduces operating costs, but also improves the pertinence and effectiveness of lighting, and helps to obtain clearer detection images, thereby further improving the accuracy of visual detection.

[0048] Please refer to Figure 6 and Figure 7 As shown, one end of the illuminating lamp 303 is connected to a mounting seat 305, and a second rotating seat 306 is arranged on the inclined surface 304. A through fixing hole 307 is provided on one side of the mounting seat 305, and a fixing rod 308 is inserted into the fixing hole 307; a mounting cavity 309 is provided on one end of the fixing rod 308, and a first spring 310 is arranged inside the mounting cavity 309, and an adjusting rod 311 is connected to one end of the first spring 310; a plurality of groups of card slots 320 are provided on one side of the second rotating seat 306, and a fixing protrusion on one side of the adjusting rod 311 is just stuck in one group of card slots 320, and on the other hand, a through through slot is also provided on one end of the mounting cavity 309, and a rectangular rod 312 is provided on one end of the adjusting rod 311, and the rectangular rod 312 is inserted into the through slot; not only can the illuminating lamp 303 be supported and positioned, but also the angle of the illuminating lamp 303 can be adjusted by adjusting the position of the adjusting rod 311 in the card slot 320, so as to better meet various lighting needs.

[0049] When it is necessary to adjust the lighting lamp 303, the user only needs to press the rectangular rod 312 at one end of the installation cavity 309, so that the fixed protrusion on one side of the adjustment rod 311 will be disengaged from one of the groups of slots 320 where it is currently located. After disengaging, the adjustment rod 311 can freely move between the multiple groups of slots 320 of the second rotating seat 306, so that the lighting angle of the lighting lamp 303 can be adjusted, fully meeting the lighting angle requirements of different detection scenarios; after the adjustment is completed, the user only needs to loosen the rectangular rod 312, and the adjustment rod 311 will automatically return to its position under the elastic force of the first spring 310 inside the installation cavity 309, so that the fixed protrusion will be accurately snapped back into one of the groups of slots 320; this not only effectively ensures the stability of the lighting lamp 303 after adjustment, but also ensures that it maintains the required optimal illumination angle, thereby helping to obtain clearer visual detection image data.

[0050] Please refer to Fig.13 , Fig.14 and Fig.15 As shown, a slide groove 313 is provided on one side of the inclined surface 304, a card plate 314 is provided in the slide groove 313, a plurality of groups of latch teeth 315 are provided on one side of the card plate 314, a slidable moving block 316 is sleeved on the card plate 314, a card block 317 is provided in the moving block 316, one end of the card block 317 is in contact with one of the groups of latch teeth 315, a second spring 322 is provided between the inner side of the moving block 316 and the card block 317, the card block 317 is rotatably connected to the moving block 316 through a rotating rod 318, and a bend piece 319 is provided at one end of the rotating rod 318; one end of the illuminating lamp 303 is connected to a mounting seat 305, and the mounting seat 305 A through fixing hole 307 is provided on one side, a fixing rod 308 is passed through the fixing hole 307, a mounting cavity 309 is provided on one end of the fixing rod 308, a first spring 310 is provided in the mounting cavity 309, an adjusting rod 311 is connected to one end of the first spring 310, two groups of connecting members 321 are provided on one side of the moving block 316, one group of connecting members 321 has a plurality of groups of card grooves 320 on one side, a fixing protrusion on one side of the adjusting rod 311 is clamped in one group of card grooves 320, a through through groove is provided on one end of the mounting cavity 309, a rectangular rod 312 is provided on one end of the adjusting rod 311, and the rectangular rod 312 is passed through the through groove.

[0051] Please refer to Figure 8 and Fig. 9As shown, the flip assembly includes a linear guide mechanism 401 and a screw slide mechanism 402, both of which are installed on the top of the workbench 101, wherein the sliders of the linear guide mechanism 401 and the screw slide mechanism 402 are respectively connected to the first support frame 403 and the second support frame 404 through multiple sets of screws, and a clamping fixture 405 for fixing the circuit board 104 is arranged between the first support frame 403 and the second support frame 404. In the actual working process, the first support frame 403 and the second support frame 404 are driven to move back and forth in the horizontal direction by the linear guide mechanism 401 and the screw slide mechanism 402, so that the circuit board 104 on the clamping fixture 405 can also move left and right accordingly. At the same time, due to the clamping fixture 405 between the first support frame 403 and the second support frame 404, it can also ensure that the circuit board 104 remains stable during the movement to avoid problems such as shaking or deflection.

[0052] Please refer to Fig.11 and Fig.12 As shown, on the inner side of the clamping tool 405, there are multiple groups of fixed air bags 406 in direct contact with the circuit board 104. In order to realize the inflation of these fixed air bags 406, corresponding air channels 407 are opened on the clamping tool 405, and a gas nozzle 408 connected with the air channel 407 is arranged on one side of the clamping tool 405; and located at the top of the first support frame 403 is a first installation groove 409, and an air pump 410 is installed inside the groove, and the air outlet of the air pump 410 is connected to the air nozzle 408 through a pipeline 411. By starting the air pump 410, the output gas can enter the air nozzle 408 through the pipeline 411, and finally fill into the fixed air bags 406 through the air channel 407. This multi-directional and flexible fixing method can not only effectively ensure the position stability of the circuit board 104 during the detection process and avoid displacement, but also can protect the surface of the circuit board 104 to the maximum extent and reduce the risk of damage caused by the fixing operation.

[0053] Please refer to Fig. 9 and Fig.10As shown, two groups of connection seats 412 are respectively arranged on both sides of the clamping fixture 405, one group of connection seats 412 is fixedly connected to the first connection head 413 by screws, and one end of the first connection head 413 can be rotatably connected to the first support frame 403; at the same time, a limit plate 414 is also arranged at one end of the first connection head 413, and a limit column 415 is arranged on one side of the corresponding first support frame 403, and the other group of connection seats 412 is fixedly connected to the second connection head 416 by screws, and one end of the second connection head 416 is connected to the main shaft of the flip motor 418 installed in the second installation slot 417 at the top of the second support frame 404; The flipping function of the clamping fixture 405 is realized. When the inspection of one side of the circuit board 104 is completed, it is only necessary to start the flipping motor 418 to drive the clamping fixture 405 to flip 180 degrees, so as to quickly switch to the other side of the circuit board 104 for inspection, which greatly improves the inspection efficiency and saves the inspection time; at the same time, through the setting of the limit plate 414 and the limit column 415, the flipping angle can also be effectively limited to ensure that the flipping operation of the clamping fixture 405 meets the accuracy and standardization requirements of the inspection process, avoids the risk of the pipeline 411 being broken due to unlimited flipping, and ensures the stability and reliability of the operation of the entire device.

[0054] Embodiment 2:

[0055] Based on the visual inspection device for circuit board processing provided in the first embodiment of the present application, the second embodiment of the present application proposes a visual inspection device for circuit board processing. This second embodiment is only a preferred method of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment. The second embodiment of the present invention will be further described below.

[0056] Please refer to Fig.13 , Fig.14 and Fig.15As shown, a slide groove 313 is provided on one side of the inclined surface 304, a card plate 314 is provided inside the slide groove 313, a plurality of groups of latch teeth 315 are provided on one side of the card plate 314, and a slidable moving block 316 is sleeved on the card plate 314, a card block 317 is provided inside the moving block 316, one end of the card block 317 is in contact with one group of latch teeth 315; a second spring 322 is also provided between the inner side of the moving block 316 and the card block 317 to play a clamping role; at the same time, the card block 317 is rotatably connected to the moving block 316 through a rotating rod 318, and a bend piece 319 is also provided at one end of the rotating rod 318; on the other hand, a mounting seat 305 is connected to one end of the illuminating lamp 303, A through fixing hole 307 is provided on one side of the mounting seat 305, a fixing rod 308 is passed through the fixing hole 307, a mounting cavity 309 is provided on one end of the fixing rod 308, a first spring 310 is provided inside the mounting cavity 309, an adjusting rod 311 is connected to one end of the first spring 310, two groups of connecting members 321 are provided on one side of the moving block 316, one side of one group of connecting members 321 has multiple groups of card slots 320, and the fixing protrusions on the side of the adjusting rod 311 are stuck in one group of card slots 320; in addition, a through slot is also provided on one end of the mounting cavity 309, a rectangular rod 312 is provided on one end of the adjusting rod 311, and the rectangular rod 312 is passed through the through slot.

[0057] Compared with the first embodiment, in which multiple groups of card slots 320 and adjustment rods 311 are used to adjust the angle of the lighting lamp 303, the second embodiment is provided with a movable block 316 that can move up and down on the card plate 314. The main difference is that the flexible adjustment of the up and down position of the lighting lamp 303 is realized, which can better adapt to the requirements of lighting height in different detection scenes and provide better lighting conditions for detection work; through the setting of the second spring 322, the card block 317 can be automatically pushed in the direction of the multiple groups of card teeth 315, so that the automatic locking of the movable block 316 is realized. The user only needs to move the movable block 316 up along the card plate 314, and the operation is simple and quick; and when the position of the lighting lamp 303 needs to be lowered, the locking of the card block 317 and the card teeth 315 can be manually released by rotating the beating piece 319, which improves the convenience and efficiency of adjustment, thereby further optimizing the lighting effect of the detection device and improving the accuracy and reliability of the detection; the remaining conditions are consistent with the first embodiment, so this embodiment will not be repeated.

[0058] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A visual inspection device for circuit board processing, comprising a workbench (101), characterized in that: A visual inspection component is arranged on the top of the workbench (101), and the visual inspection component includes a visual inspection module (201) and a circular track (202). The circular track (202) is arranged above the workbench (101), and the visual inspection module (201) is slidably arranged at the bottom of the circular track (202); a lighting component is also arranged on the top of the workbench (101), and the lighting component includes a visual recognition module (301) and four sets of recognition layers (302). The top of the workbench (101) is connected to a top plate (103) through four groups of support columns (102), and four groups of identification layers (302) are arranged at the bottom of the top plate (103), and the visual identification modules (301) are arranged correspondingly below the four groups of identification layers (302); a flip assembly is arranged on the top of the workbench (101), and conveyor belts (105) for transporting circuit boards (104) are arranged on both sides of the workbench (101), and suction cup manipulators (106) are arranged on one side of the two groups of conveyor belts (105).

2. A visual inspection device for circuit board processing according to claim 1, characterized in that: The bottom of the top plate (103) is connected to the annular track (202) via a connecting column (203), a fixing plate (204) is arranged at the bottom of the connecting column (203), two groups of through holes are opened on the annular track (202) and the fixing plate (204), and two groups of screws pass through four groups of through holes respectively to be fixedly connected to the bottom of the connecting column (203); the visual detection component also includes an L-shaped mounting plate (205), and a plurality of groups of rotatable pulleys (206) are arranged at the bottom of the L-shaped mounting plate (205), and the plurality of groups of pulleys (206) are all located in the annular track (202).

3. A visual inspection device for circuit board processing according to claim 2, characterized in that: An inner gear ring (207) is arranged on the inner side of the annular track (202); a mounting hole (208) is opened on the top of the L-shaped mounting plate (205); a moving motor (209) is arranged on the top of the mounting hole (208); a moving gear (210) is arranged on the bottom of the mounting hole (208); a main shaft of the moving motor (209) passes through the mounting hole (208) and is connected to the moving gear (210); and the moving gear (210) is meshed with the inner gear ring (207).

4. A visual inspection device for circuit board processing according to claim 3, characterized in that: A connecting plate (211) is arranged at the bottom of the L-shaped mounting plate (205), two groups of first rotating seats (212) are arranged on one side of the connecting plate (211), a rotatable assembly part (213) is arranged between the two groups of the first rotating seats (212), the visual inspection module (201) is clamped on one end of the assembly part (213), an angle adjustment motor (214) is arranged on one side of one group of the first rotating seats (212), and the main shaft of the angle adjustment motor (214) is connected to the assembly part (213).

5. The visual inspection device for circuit board processing according to claim 2, characterized in that: The lighting assembly also includes four groups of lighting lamps (303); adjacent sides of the four groups of support columns (102) are each provided with an inclined surface (304); the four groups of inclined surfaces (304) are respectively provided with four groups of lighting lamps (303); the four groups of identification layers (302) are annular and are respectively distributed corresponding to the four groups of lighting lamps (303); the visual identification module (301) is provided on the top of the L-shaped mounting plate (205); the visual identification module (301) is located at the bottom of one group of the identification layers (302).

6. A visual inspection device for circuit board processing according to claim 5, characterized in that: One end of the lighting lamp (303) is connected to a mounting seat (305), and a second rotating seat (306) is arranged on the inclined surface (304). A through fixing hole (307) is provided on one side of the mounting seat (305), and a fixing rod (308) is inserted into the fixing hole (307). One end of the fixing rod (308) is provided with a mounting cavity (309), and a first spring (310) is arranged in the mounting cavity (309). One end of the first spring (310) is connected to an adjusting rod (311). One side of the second rotating seat (306) is provided with a plurality of groups of slots (320), and a fixing protrusion on one side of the adjusting rod (311) is inserted into one group of the slots (320). One end of the mounting cavity (309) is provided with a through slot, and one end of the adjusting rod (311) is provided with a rectangular rod (312), and the rectangular rod (312) is inserted into the through slot.

7. A visual inspection device for circuit board processing according to claim 5, characterized in that: A slide groove (313) is provided on one side of the inclined surface (304), a card plate (314) is provided in the slide groove (313), a plurality of groups of latch teeth (315) are provided on one side of the card plate (314), a slidable moving block (316) is sleeved on the card plate (314), a card block (317) is provided in the moving block (316), one end of the card block (317) is in contact with one group of the latch teeth (315), a second spring (322) is provided between the inner side of the moving block (316) and the card block (317), the card block (317) is rotatably connected to the moving block (316) through a rotating rod (318), and a bend piece (319) is provided at one end of the rotating rod (318); one end of the illuminating lamp (303) is connected to a mounting seat (305), and the mounting seat ( A through fixing hole (307) is provided on one side of the movable block (316), a fixing rod (308) is inserted into the fixing hole (307), a mounting cavity (309) is provided on one end of the fixing rod (308), a first spring (310) is provided in the mounting cavity (309), one end of the first spring (310) is connected to an adjusting rod (311), two groups of connecting members (321) are provided on one side of the movable block (316), one group of the connecting members (321) has a plurality of groups of card slots (320) on one side, a fixing protrusion on one side of the adjusting rod (311) is inserted into one group of the card slots (320), a through through slot is provided on one end of the mounting cavity (309), a rectangular rod (312) is provided on one end of the adjusting rod (311), and the rectangular rod (312) is inserted into the through slot.

8. The visual inspection device for circuit board processing according to claim 1, characterized in that: The flip assembly comprises a linear guide mechanism (401) and a screw slide mechanism (402); the linear guide mechanism (401) and the screw slide mechanism (402) are arranged on the top of the workbench (101); the sliders of the linear guide mechanism (401) and the screw slide mechanism (402) are respectively connected to a first support frame (403) and a second support frame (404) by a plurality of sets of screws; a clamping tool (405) for fixing the circuit board (104) is arranged between the first support frame (403) and the second support frame (404).

9. A visual inspection device for circuit board processing according to claim 8, characterized in that: The inner side of the clamping tool (405) is provided with a plurality of groups of fixed air bags (406) in contact with the circuit board (104); the clamping tool (405) is provided with air passages (407) corresponding to the plurality of groups of fixed air bags (406); one side of the clamping tool (405) is provided with an air nozzle (408) connected with the air passage (407); the top of the first support frame (403) is provided with a first installation slot (409); an air pump (410) is provided in the first installation slot (409); and the air outlet of the air pump (410) is connected with the air nozzle (408) through a pipeline (411).

10. A visual inspection device for circuit board processing according to claim 9, characterized in that: Two groups of connection seats (412) are respectively arranged on both sides of the clamping tool (405), one group of the connection seats (412) is fixedly connected to a first connection head (413) by screws, one end of the first connection head (413) is rotatably connected to the first support frame (403), one end of the first connection head (413) is provided with a limiting plate (414), and one side of the first support frame (403) is correspondingly provided with a limiting column (415); Another group of the connecting seats (412) is fixedly connected to a second connecting head (416) by screws, and a second mounting slot (417) is provided on the top of the second supporting frame (404). A flip motor (418) is arranged in the second mounting slot (417), and a main shaft of the flip motor (418) is connected to one end of the second connecting head (416).

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