Full-automatic appearance full-inspection equipment for FPC (Flexible Printed Circuit) and use method thereof

Abstract

The embodiment of the invention provides full-automatic appearance full-inspection equipment for an FPC (Flexible Printed Circuit) and a use method of the full-automatic appearance full-inspection equipment, and relates to the field of FPC detection equipment. Comprising a workbench, a support and two adsorption placement mechanisms, the workbench is a hollow cavity, the top end of the workbench is open, the support is assembled at the top of the workbench, an industrial camera is installed at the top end of the support, the number of the adsorption placement mechanisms is two, and the adsorption placement mechanisms are arranged on the workbench. The two adsorption placing mechanisms are symmetrically arranged in an inner cavity of the workbench, and the tops of the two adsorption placing mechanisms correspond to the industrial camera. According to the invention, FPC positioning and turning can be realized automatically, appearance full inspection is facilitated, interference is avoided in the turning process of equipment through cooperation of a mechanical structure, the integration degree is improved, the fault tolerance and the automation level are improved, and the detection precision and efficiency are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of FPC testing equipment, and in particular to a fully automatic appearance inspection equipment for FPC and a use method thereof. Background Art

[0002] FPC (Flexible Printed Circuit Board) is widely used in modern electronic products. Its high density, thinness, and flexibility make it an indispensable part of high-tech electronic products. However, various defects may occur in the manufacturing process of FPC, such as scratches, stains, broken wires, open circuits, short circuits, etc. These defects will not only affect the quality and reliability of the product, but may also cause serious economic losses. Therefore, it is very necessary to conduct a full appearance inspection of the substrate to ensure its quality before installing FPC components. At present, the full appearance inspection of FPC substrates is achieved through industrial cameras. High-resolution industrial cameras can capture more details and help detect tiny defects. These cameras are usually equipped with high sensitivity and high dynamic range, and can generate clear images under various lighting conditions. In addition, through manual observation or combined with advanced image processing algorithms, industrial cameras can efficiently identify and classify various defects, such as scratches, stains and broken wires. At present, most of the inspection equipment used for FPC photography relies on manual or semi-automatic equipment, and the turning over of FPC still needs to be done manually, which not only reduces work efficiency but also increases labor costs; Based on this, a fully automatic appearance inspection device for FPC and a method for using the same are now proposed. Summary of the invention

[0003] According to an embodiment of the present invention, a fully automatic appearance inspection device for FPC and a method for using the same are provided to solve the problem that the conventional turning over of FPC needs to be done manually, which reduces work efficiency and increases labor costs.

[0004] In a first aspect of the present invention, a fully automatic appearance inspection device for FPC and a method for using the same are provided.

[0005] The fully automatic appearance inspection equipment of FPC comprises: a workbench, a bracket and an adsorption placement mechanism, the workbench is a hollow cavity, and the top of the workbench is open, the bracket is assembled on the top of the workbench, an industrial camera is installed on the top of the bracket, the number of the adsorption placement mechanisms is two, the two adsorption placement mechanisms are symmetrically arranged in the inner cavity of the workbench, and the tops of the two adsorption placement mechanisms correspond to the industrial cameras; One of the adsorption and placement mechanisms is rotatably disposed in the inner cavity of the workbench, and the inner cavity of the workbench is also equipped with a flipping mechanism, which can drive one of the adsorption and placement mechanisms to rotate and fit with the other adsorption and placement mechanism.

[0006] Preferably, the adsorption placement mechanism includes an outer shell, a top plate, air holes, a sleeve, a lifting plate and a piston rod, the outer shell is a hollow cavity with an open top; the top plate is fixedly installed on the top of the outer shell, the number of the air holes is several, and the several air holes are arranged in an array on the top plate; the number of the sleeves is several, and the several sleeves are arranged in an array on the bottom end of the top plate, and the inner cavities of the several sleeves are connected with the several air holes respectively; the lifting plate is arranged in the inner cavity of the outer shell, the number of the piston rods is several, and the several piston rods are arranged in an array on the upper surface of the lifting plate, and the top ends of the several piston rods extend into the inner cavities of the several sleeves respectively.

[0007] Preferably, the adsorption and placement mechanism also includes a first lead screw, a moving block, a connecting block, a rotating rod, a docking piece and a first positioning rod. The first lead screw is rotatably arranged at the bottom of the inner cavity of the shell. There are two moving blocks, and the two moving blocks are respectively threadedly connected to the first lead screw; there are two connecting blocks, and the two connecting blocks are respectively installed at the bottom of the lifting plate, the two ends of the rotating rod are respectively rotatably connected to the moving block and the connecting block, and the rotating rod is tilted; the docking piece is rotatably installed on the outer wall of the shell, and the docking piece is connected to one end of the first lead screw; the first positioning rod is installed at the bottom of the inner cavity of the shell, and the first positioning rod slides through the moving block.

[0008] Preferably, the flipping mechanism includes a driving beam, a limit plate, a lever, a turntable, a convex tooth, a brake plate, a second positioning rod, a driving block, a second lead screw and a first motor, the driving beam is arranged in the inner cavity of the workbench, there are two limit plates, which are respectively arranged at the bottom of the driving beam; the number of the levers is several, several of which are arranged on the driving beam, and the levers correspond to the gap between the two limit plates, the turntable is located at the top of the limit plate, and the turntable is connected to one of the top plates; there are several convex teeth, several of which are arranged on On the turntable, the convex tooth is adapted to the shift rod, and there are two brake plates, which are arranged on the turntable and symmetrically arranged relative to the convex tooth; the second positioning rod is fixedly installed in the inner cavity of the workbench, and the second positioning rod passes through the driving beam; the driving block is installed on the side of the driving beam away from the turntable, the second lead screw is rotatably installed in the inner cavity of the workbench, the driving block is threadedly connected to the second lead screw, the first motor is installed in the inner cavity of the workbench, and the output end of the first motor is connected to one end of the second lead screw.

[0009] Preferably, the inner cavity of the workbench is also equipped with a driving mechanism; The driving mechanism includes a protective shell, a second motor, a toothed belt wheel, a toothed belt, a connector, a driving plate, a first driving groove, a first driving rod, a second driving groove, and a second driving rod. The protective shell is installed in the inner cavity of the workbench, and the second motor is installed in the inner cavity of the protective shell. There are two toothed belt wheels, and the two toothed belt wheels are rotatably installed in the inner cavity of the protective shell, and the toothed belt is connected between the two toothed belt wheels; the number of the connectors is two, and the two connectors are rotatably installed on the outer wall of the protective shell, and the two connectors are respectively connected to the two toothed belt wheels; the driving plate is arranged between the protective shell and the driving beam, the first driving groove is opened on the side of the driving plate opposite to the protective shell, the first driving rod is connected to the protective shell, and the first driving rod is installed in the first driving groove; the second driving groove is opened on the side of the driving plate opposite to the driving beam, the second driving rod is connected to the driving beam, and the second driving rod is installed in the second driving groove; The second driving groove comprises a low section, a transition section and a high section; A third positioning rod is also installed at the bottom end of the inner cavity of the workbench, and a sliding block is installed at the bottom end of the protective shell, and the sliding block is slidably sleeved on the third positioning rod.

[0010] Preferably, a correction groove and a clamping groove are provided at one end of the docking member away from the housing, and the correction groove and the clamping groove are connected, and the cross-sectional width of the correction groove is set to be contracted from the clamping groove to the housing; A clamping block is installed on the side of the connector away from the protective shell, and a correction sheet is installed on the side of the clamping block away from the protective shell. The shape of the correction sheet is adapted to the correction slot, and the shape of the clamping block is adapted to the clamping slot.

[0011] Preferably, a linkage portion is provided between the driving block and the bracket, and the linkage portion enables the bracket to move in a horizontal direction perpendicular to the moving direction of the driving block while the driving block moves.

[0012] Preferably, the linkage part includes a slide, a slide groove, a limiting block, a limiting groove, a linkage rod and a linkage plate, the slide is opened at the top of the workbench, the linkage rod is installed on the top of the driving block, the linkage rod passes through the slide and extends out of the inner cavity of the workbench, the linkage plate is arranged at the top of the workbench, the slide groove is opened on the lower surface of the linkage plate, the top of the linkage rod is installed in the slide groove, the limiting groove is installed on the top of the workbench, the limiting block is installed in the limiting groove, and the limiting block is connected to the linkage plate.

[0013] In a second aspect of the present invention, a method for using a fully automatic appearance inspection device for FPC is provided.

[0014] The method of use includes the following steps: Place the FPC on the adsorption placement mechanism that is not connected to the turntable, so that the FPC is laid flat on the top of the top plate; The flip mechanism is turned on, and the flip mechanism preferentially moves the bracket away from the adsorption placement mechanism through the cooperation of the linkage part; Then, the adsorption placement mechanism connected to the flipping mechanism rotates, and the two adsorption placement mechanisms fit together to press the FPC tightly; The flip mechanism continues to operate to achieve docking between the driving mechanism and the adsorption placement mechanism, and the driving mechanism is turned on to start the adsorption action of the adsorption placement mechanism that is not connected to the flip mechanism, and the other adsorption placement mechanism starts the release action, and the FPC is adsorbed; The driving mechanism and the flipping mechanism are reset in sequence, the adsorption placement mechanism connected to the flipping mechanism is reset, and at the same time, the linkage part drives the bracket to reset, and the front side of the FPC is photographed using an industrial camera.

[0015] Preferably, the method further comprises the following steps: The flip mechanism is turned on again, and the flip mechanism preferentially moves the bracket away from the adsorption placement mechanism through the cooperation of the linkage part, and then the adsorption placement mechanism connected to the flip mechanism flips again, and the two adsorption placement mechanisms are attached to each other; The flip mechanism continues to operate, so that the driving mechanism docks with the adsorption placement mechanism again, and the driving mechanism is turned on to start the release action of the adsorption placement mechanism that is not connected to the flip mechanism, and the other adsorption placement mechanism starts the adsorption action, and the FPC is tightly adsorbed by the adsorption placement mechanism connected to the flip mechanism; The driving mechanism and the flipping mechanism are reset in sequence, and the adsorption placement mechanism connected to the flipping mechanism is reset. At this time, the FPC is turned over, and the linkage part drives the bracket to reset, and the back of the FPC is photographed using an industrial camera.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The present invention provides a fully automatic appearance inspection device for FPC, which, through the setting of an adsorption placement mechanism, provides negative pressure suction to automatically adsorb FPC or positive pressure to release FPC, thereby avoiding displacement during the detection process and improving the stability of the detection and the precision of the equipment.

[0017] 2. The setting of the flipping mechanism in the present invention enables the two adsorption and placement mechanisms to automatically fit together or reset, and cooperate with the adsorption or release of the adsorption and placement mechanism to realize the automatic flipping of the FPC without manual flipping, saving labor costs and improving work efficiency.

[0018] 3. In addition to being able to flip the adsorption and placement mechanism, the flipping mechanism in the present invention can also automatically control the driving mechanism to dock with the adsorption and placement mechanism, thereby realizing the release or absorption work of the adsorption and placement mechanism, and improving the accuracy of the equipment and the degree of integration through the linkage of the mechanical mechanism.

[0019] 4. During the operation of the flipping mechanism of the present invention, the bracket and the industrial camera can be automatically moved away from the adsorption placement mechanism through the cooperation of the linkage part, ensuring that the adsorption placement mechanism will not collide with or interfere with the bracket and the industrial camera during flipping, thereby further improving the accuracy of the equipment and facilitating the fully automatic process of the equipment.

[0020] 5. The design of the correction groove and the correction sheet in the present invention ensures the automatic docking of the adsorption placement mechanism and the docking member in the case of slight misalignment, thereby improving the fault tolerance of the docking process and the automation level of the equipment.

[0021] In summary, the present invention can automatically realize the positioning and turning over of the FPC, which is convenient for the full appearance inspection. At the same time, through the cooperation of the mechanical structure, it ensures that the equipment avoids interference during the turning process, improves the degree of integration, improves the fault tolerance and automation level, and greatly improves the detection accuracy and efficiency.

[0022] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 An axonometric diagram of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the mechanism of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown; Figure 3 An exploded view of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic structural diagram of a driving mechanism of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0025] Figure 5 A schematic diagram of the rear structure of a driving board of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0026] Figure 6 A structural schematic diagram of a flipping mechanism of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0027] Figure 7 A structural schematic diagram of an adsorption and placement mechanism of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0028] Figure 8 A bottom view of a linkage plate of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0029] Fig. 9 A schematic structural diagram of a correction slot of a fully automatic appearance inspection device for FPC according to an embodiment of the present invention is shown.

[0030] The reference numerals are as follows: 1- workbench, 2- bracket, 201- industrial camera, 3- adsorption placement mechanism, 301- shell, 302- top plate, 303- air hole, 304- sleeve, 305- lifting plate, 306- piston rod, 307- first lead screw, 308- moving block, 309- connecting block, 3010- rotating rod, 3011- docking piece, 30111- correction groove, 30112- card groove, 3012- first positioning rod, 4- flip mechanism, 401- driving beam, 402- limiting plate, 403- lever, 404- turntable, 405- convex teeth, 4051- brake plate, 406- second positioning rod, 407- driving block, 408- second Screw, 409-first motor, 5-driving mechanism, 501-protective shell, 502-second motor, 503-toothed pulley, 504-toothed belt, 505-connector, 5051-block, 5052-correction plate, 506-driving plate, 507-first driving groove, 508-first driving rod, 509-second driving groove, 5091-low section, 5092-transition section, 5093-high section, 5010-second driving rod, 5011-third positioning rod, 5012-slider, 7-linkage part, 701-slideway, 702-slide groove, 703-limiting block, 704-limiting groove, 705-linkage rod, 706-linkage plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] like Figures 1 to 3 and Figure 7As shown, the fully automatic appearance inspection equipment of the FPC includes a workbench 1, a bracket 2 and an adsorption placement mechanism 3. The workbench 1 is a hollow cavity, and the top of the workbench 1 is open. The bracket 2 is assembled on the top of the workbench 1, and an industrial camera 201 is installed on the top of the bracket 2. There are two industrial cameras 201, which are used to shoot the front and back of the FPC respectively. The model of the industrial camera selected in the present invention is BFLY-PGE-50A2M. The industrial camera has high resolution and is suitable for high-precision detection applications. There are two adsorption placement mechanisms 3, and the two adsorption placement mechanisms 3 are symmetrically arranged in the inner cavity of the workbench 1, and the tops of the two adsorption placement mechanisms 3 correspond to the industrial cameras 201. The FPC is placed on the top of the adsorption placement mechanism 3, and the adsorption placement mechanism 3 can be used to adsorb the FPC, so that its position is firm and stable, and displacement during detection is avoided. One of the adsorption placement mechanisms 3 is rotatably arranged in the inner cavity of the workbench 1. The inner cavity of the workbench 1 is also equipped with a flipping mechanism 4, which can drive one of the adsorption and placement mechanisms 3 to rotate and fit with the other adsorption and placement mechanism 3. The inner cavity of the workbench 1 is also equipped with a driving mechanism 5. By cooperating with the flipping mechanism 4 and the driving mechanism 5, the FPC adsorbed and fixed by one of the adsorption and placement mechanisms 3 is released and adsorbed by the other adsorption and placement mechanism 3. When the adsorption and placement mechanism 3 is reset under the reset drive of the flipping mechanism 4, the FPC can be turned over.

[0034] In this embodiment, the specific working system and principle of the industrial camera 201 are as follows: The optical image of the target object is focused on the image sensor (CMOS or CCD sensor) through the optical lens. The sensor converts the optical signal into an electrical signal and generates digital image data. The parameters such as shutter speed, exposure time and frame rate of the industrial camera 201 can be precisely adjusted according to application requirements to ensure high-quality image acquisition; The collected digital image data will first be processed by the image processing unit inside the industrial camera 201, which may include white balance adjustment, edge enhancement, and color correction. The processed image data is usually transmitted to an external computing device through the interface of the industrial camera 201; The transmitted data can be directly sent to industrial computers, PLCs or other control systems for further image processing, analysis and decision making; In addition, the image data captured by the industrial camera 201 is transmitted to the industrial computer and presented through a display, and appearance inspection can be performed through manual active observation.

[0035] According to the following Figure 7As shown, the adsorption placement mechanism 3 is introduced: the adsorption placement mechanism 3 includes a shell 301, a top plate 302, an air hole 303, a sleeve 304, a lifting plate 305, a piston rod 306, a first screw 307, a moving block 308, a connecting block 309, a rotating rod 3010, a docking piece 3011 and a first positioning rod 3012. The shell 301 is a hollow cavity with an open top. The top plate 302 is fixedly installed on the top of the shell 301. The number of the air holes 303 is fifteen, and the fifteen air holes 303 are respectively arranged in an array on the top plate 302. The FPC to be tested is placed on the upper surface of the top plate 302. Since the base material of the FPC, such as polyimide PI and polyester PET, is a high-performance polymer material, it has good flexibility and is airtight. When the FPC is placed on the top plate 302, the top of the air hole 303 can be closed. The number of sleeves 304 is fifteen, and the fifteen sleeves 304 are respectively mounted in an array at the bottom end of the top plate 302, and the inner cavities of the fifteen sleeves 304 are respectively connected to the fifteen air holes 303. The lifting plate 305 is set in the inner cavity of the shell 301, and the number of piston rods 306 is fifteen, and the fifteen piston rods 306 are respectively mounted in an array on the upper surface of the lifting plate 305, see Figure 7 In this embodiment, the top ends of the fifteen piston rods 306 extend into the inner cavities of the fifteen sleeves 304 respectively, and the lifting plate 305 can drive the piston rods 306 to move in the inner cavities of the sleeves 304 while lifting and lowering. The sleeves 304 are tubular structures, and the piston rods 306 are precisely matched in the inner cavity of the sleeves 304. A sealing ring is set at the contact point between the two to increase air tightness, and they can move relative to each other. When the piston rod 306 moves downward, the sealed space at the top of the piston rod in the inner cavity of the sleeve 304 becomes larger, generating negative pressure, so that the FPC is adsorbed on the top plate 302.

[0036] The first lead screw 307 is rotatably arranged at the bottom of the inner cavity of the housing 301. There are two moving blocks 308, which are respectively threadedly connected to the first lead screw 307. When the first lead screw 307 rotates, the moving blocks 308 can move axially along the first lead screw 307. There are two connecting blocks 309, which are respectively installed at the bottom of the lifting plate 305. The two ends of the rotating rod 3010 are respectively rotatably connected to the moving block 308 and the connecting block 309, and the rotating rod 3010 is tilted. When the moving block 308 moves, the rotating rod 3010 can drive the lifting plate 305 to rise or fall. The docking piece 3011 is rotatably installed on the outer wall of the housing 301, and the docking piece 3011 is connected to one end of the first lead screw 307. The first positioning rod 3012 is installed at the bottom of the inner cavity of the shell 301, and the first positioning rod 3012 slides through the moving block 308. The first positioning rod 3012 plays a limiting role to prevent the moving block 308 from rotating during the movement.

[0037] When the adsorption placement mechanism 3 in this embodiment is in use, the first screw 307 is rotated by driving the rotation of the docking piece 3011, thereby driving the two moving blocks 308 to move, and the lifting plate 305 is lowered by the rotation of the rotating rod 3010, and several piston rods 306 are lowered synchronously, so that the inner cavity of the sleeve 304 generates negative pressure suction, so that the FPC is adsorbed on the surface of the top plate 302. Conversely, when the docking piece 3011 rotates in the opposite direction, the lifting plate 305 and the piston rod 306 rise, the negative pressure inside the sleeve 304 disappears, and the FPC is released.

[0038] In this embodiment, the automatic adsorption and positioning of the FPC is realized to avoid displacement during the detection process, so as not to affect the detection results. At the same time, the arrangement of the closely arranged air holes 303 can improve the adsorption stability of the FPC and improve the overall precision of the device.

[0039] It is worth noting that the first screws 307 in the two adsorption and placement mechanisms 3 are arranged correspondingly to ensure that when the two adsorption and placement mechanisms 3 are attached, the two first screws 307 rotate in the same direction, so that one of the adsorption and placement mechanisms 3 can perform an adsorption action and the other adsorption and placement mechanism 3 can perform a release action. Conversely, changing the rotation direction of the two first screws 307 can reverse the adsorption and release actions of the adsorption and placement mechanisms 3.

[0040] According to the following Figure 3 and Figure 6, the flip mechanism 4 is introduced as follows: the flip mechanism 4 includes a driving beam 401, a limit plate 402, a lever 403, a turntable 404, a convex tooth 405, a brake plate 4051, a second positioning rod 406, a driving block 407, a second lead screw 408 and a first motor 409. The driving beam 401 is arranged in the inner cavity of the workbench 1. There are two limit plates 402, which are arranged at the bottom of the driving beam 401 respectively. There are five levers 403, which are arranged on the driving beam 401, and the levers 403 correspond to the gap between the two limit plates 402. The turntable 404 is located at the top of the limit plate 402, and the turntable 404 is connected to one of the top plates 302. There are three protruding teeth 405, which are arranged on the rotating disk 404, and the protruding teeth 405 are matched with the lever 403. There are two brake plates 4051, which are arranged on the rotating disk 404, and the two brake plates 4051 are symmetrically arranged relative to the protruding teeth 405. Five slots are formed between the three protruding teeth 405 and the two brake plates 4051, and the five slots are matched with the five levers 403. When the levers 403 enter the slots in sequence, the rotating disk 404 can be driven to rotate. The second positioning rod 406 is fixedly installed in the inner cavity of the workbench 1, and the second positioning rod 406 passes through the driving beam frame 401. The stability of the driving beam frame 401 can be ensured by limiting the position of the second positioning rod 406. The driving block 407 is installed on the side of the driving beam 401 away from the turntable 404, and the second lead screw 408 is rotatably installed in the inner cavity of the workbench 1. The driving block 407 is threadedly connected with the second lead screw 408. When the second lead screw 408 rotates, the driving block 407 can be driven to move axially along the second lead screw 408. The first motor 409 is installed in the inner cavity of the workbench 1, and the output end of the first motor 409 is connected to one end of the second lead screw 408. Turning on the first motor 409 can drive the second lead screw 408 to rotate.

[0041] When the flip mechanism 4 in this embodiment is in use, the first motor 409 is turned on to drive the second lead screw 408 to rotate, so that the driving block 407 drives the driving beam 401 to move. Initially, the brake plate 4051 is attached to the limit plate 402, and the rotating disk 404 is stable. When the lever 403 begins to correspond to the convex tooth 405, the lever 403 is used to make the rotating disk 404 rotate, and the top plate 302 connected to the rotating disk 404 rotates synchronously. At the same time, the gap between the two limit plates 402 provides space for the rotation of the rotating disk 404 to avoid interference. When the rotating disk 404 rotates 180 degrees, the other brake plate 4051 is attached to the limit plate 402, and the rotating disk 404 is stable again. At this time, the adsorption placement mechanism 3 corresponding to the top plate 302 connected to the rotating disk 404 is flipped, and the top plate 302 is attached to the top plate 302 in another adsorption placement mechanism 3. On the contrary, when the first motor 409 is reversely started, the adsorption placement mechanism 3 can be reset.

[0042] The device can automatically flip the adsorption and placement mechanism 3 to ensure that the flipping angle is 180 degrees, and can provide effective limiting to avoid excessive rotation, so that the two adsorption and placement mechanisms 3 are automatically attached. When the two adsorption and placement mechanisms 3 are attached, the FPC can be flattened to ensure the firmness of the adsorption, and the adsorption and placement mechanism 3 can be automatically reset to ensure that the flexible circuit board can be automatically flipped.

[0043] In addition, in the present embodiment, a layer of rubber sheet is added to the upper surface of the top plate 302. The rubber sheet has good air tightness, and when the FPC is bonded, the sealing between the two is guaranteed. At the same time, the rubber sheet has a certain elasticity. When there are protruding components on the FPC, the rubber sheet at this position can be pressed and depressed. When the two adsorption and placement mechanisms 3 are bonded to each other, it is guaranteed that the substrate part can be effectively adsorbed while avoiding damage to the components.

[0044] Reference below Figure 3 , Figure 4 and Figure 5, the driving mechanism 5 is introduced, the driving mechanism 5 includes a protective shell 501, a second motor 502, a toothed pulley 503, a toothed belt 504, a connector 505, a driving plate 506, a first driving groove 507, a first driving rod 508, a second driving groove 509, and a second driving rod 5010. The protective shell 501 is installed in the inner cavity of the workbench 1, and a third positioning rod 5011 is also installed at the bottom end of the inner cavity of the workbench 1. A slider 5012 is installed at the bottom end of the protective shell 501, and the slider 5012 is slidably connected to the third positioning rod 5011. The cooperation between the third positioning rod 5011 and the slider 5012 is utilized to ensure that the protective shell 501 can only move in a fixed direction and ensure the accuracy of the movement. The second motor 502 is installed in the inner cavity of the protective shell 501. There are two toothed belt wheels 503, which are rotatably installed in the inner cavity of the protective shell 501. The toothed belt 504 passes through the two toothed belt wheels 503, thereby connecting between the two toothed belt wheels 503. The teeth of the toothed belt 504 mesh with the teeth of the toothed belt wheels 503. The belt teeth enter the tooth grooves of the belt wheels during operation, so that the two can be synchronously transmitted without slipping, thereby ensuring the synchronous rotation of the two toothed belt wheels 503. There are two connectors 505, which are rotatably installed on the outer wall of the protective shell 501, and the two connectors 505 are respectively connected to the two toothed belt wheels 503. The driving plate 506 is arranged between the protective shell 501 and the driving beam 401. By utilizing the limit of the workbench 1 and the protective shell 501, the driving plate 506 can only move up and down. The first driving groove 507 is opened on the side opposite to the driving plate 506 and the protective shell 501. The first driving rod 508 is connected to the protective shell 501, and the first driving rod 508 is installed in the first driving groove 507. When the driving plate 506 moves downward, the cooperation of the first driving groove 507 and the first driving rod 508 can make the protective shell 501 move in the direction of the adsorption placement mechanism 3. When the driving plate 506 rises, the protective shell 501 moves in the opposite direction. The second driving groove 509 is opened on the side opposite to the driving plate 506 and the driving beam frame 401, the second driving rod 5010 is connected to the driving beam frame 401, and the second driving rod 5010 is installed in the second driving groove 509, the second driving groove includes a low section 5091, a transition section 5092 and a high section 5093, when the second driving rod 5010 moves in the horizontal direction, the second driving rod 5010 enters the low section 5091, the transition section 5092, and the high section 5093 in turn, which can make the driving plate 506 descend, and the second driving rod 5010 moves in the opposite direction, which will make the driving plate 506 rise.

[0045] In this embodiment, when the driving mechanism 5 is in use, after the flipping mechanism 4 drives an adsorption placement mechanism 3 to reverse, as the driving beam 401 continues to move, the second driving rod 5010 enters the low section 5091, the transition section 5092, and the high section 5093 in sequence, so that the driving plate 506 descends. When the driving plate descends, the first driving groove 507 and the first driving rod 508 cooperate to move the protective shell 501 in the direction of the adsorption placement mechanism 3. The connector 505 and the docking member 3011 dock, the second motor 502 is started, and the two toothed belt wheels 503 drive the two connectors 505 to rotate by the transmission of the toothed belt 504, so that the adsorption placement mechanism 3 can start the adsorption action and achieve stable adsorption of the FPC. On the contrary, when the driving beam 401 is reset, the driving plate 506 will be reset first. After the protective shell 501 is reset, the adsorption placement mechanism 3 begins to reset.

[0046] The device can ensure that after the flipping mechanism 4 completes the flipping and bonding work of the adsorption placement mechanism 3, the driving mechanism 5 is automatically docked with the adsorption placement mechanism 3, so that the FPC adsorption work can be controlled and the FPC flipping work can be realized without additional operation, thereby improving the integrity of the equipment and realizing automation.

[0047] Among them, the docking piece 3011 is rotatably mounted on the outer wall of the housing 301 through a damping shaft, and the plug-in piece 505 is rotatably mounted on the outer wall of the protective shell 501 through a damping shaft. The plug-in piece 505 and the docking piece 3011 are positioned correspondingly. The damping shaft in this embodiment is a device used in mechanical equipment to control the movement speed and stability of rotating parts. It is common knowledge that the two connected parts require a certain force to rotate relative to each other. In order to avoid accidental collisions that cause the docking piece 3011 and the plug-in piece 505 to be slightly misaligned and unable to dock, the following solution is proposed: refer to Figure 4 and Fig. 9A correction groove 30111 and a clamping groove 30112 are formed at one end of the docking member 3011 away from the housing 301 , and the correction groove 30111 and the clamping groove 30112 are connected, and the cross-sectional width of the correction groove 30111 is set to be contracted from the clamping groove 30112 toward the housing 301 . A clamping block 5051 is installed on the side of the connector 505 away from the protective shell 501, and a correction piece 5052 is installed on the side of the clamping block 5051 away from the protective shell 501. The shape of the correction piece 5052 is adapted to the correction slot 30111, and the length of the correction piece 5052 is the same as the depth of the correction slot 30111. The shape and width of the correction piece 5052 are adapted to the shape and width of the narrowest part of the correction slot 30111. The width of the widest part of the correction slot 30111 is 3 times the width of the correction piece 5052. When there is a slight offset between the correction piece 5052 and the correction slot 30111, the correction piece 5052 can still be inserted into the correction slot 30111 preferentially. The card block 5051 is prismatic in shape and is adapted to the card slot 30112. When the protective shell 501 moves toward the outer shell 301, the correction piece 5052 will be inserted into the correction slot 30111. As the insertion gradually goes deeper, the correction piece 5052 will be inserted into the deepest and narrowest part of the correction slot 30111. This process completes the relative correction of the docking piece 3011 and the connector 505 through the passive rotation of the connector 505. Finally, the card block 5051 is inserted into the card slot 30112, and the two can rotate synchronously. It is worth noting that the second motor 502 is a motor with self-locking capability. The specific model in this embodiment is: NEMA 17 motor. During the correction process, the second motor 502 is unlocked, and the connector 505 can rotate together with the toothed belt pulley 503 to avoid interference caused by the output end of the second motor 502 being locked. When the docking piece 3011 and the connector 505 are not docked, the output end of the second motor 502 is locked to prevent the toothed belt pulley 503 and the connector 505 from rotating.

[0048] The plug-in connector and the docking part realize high-precision calibration in the automatic docking process through the unique design of the correction groove 30111 and the correction piece 5052. When the equipment is running, even if there is a slight misalignment between the plug-in connector 505 and the docking part 3011, the cooperation of the correction groove 30111 and the correction piece 5052 can effectively guide the two to the correct position, thereby ensuring the final reliable docking. This design not only improves the fault tolerance of the docking process, reduces the risk of docking failure caused by misalignment, but also improves the overall automation level of the equipment. In addition, through the docking of the clamping block 5051 and the clamping groove 30112, the accuracy and synchronization of the rotation after docking are guaranteed.

[0049] A linkage part 7 is provided between the driving block 407 and the bracket 2, and the linkage part 7 enables the bracket 2 to move in a horizontal direction perpendicular to the movement direction of the driving block 407 while the driving block 407 moves. This ensures that when the two adsorption and placement mechanisms 3 rotate relative to each other and fit together, the flipping path of the adsorption and placement mechanism 3 is not blocked to avoid interference.

[0050] Reference below Figure 3 and Figure 8 , the linkage part 7 is introduced as follows: the linkage part 7 includes a slide 701, a slide groove 702, a limiting block 703, a limiting groove 704, a linkage rod 705 and a linkage plate 706. The slide 701 is opened at the top of the workbench 1, the linkage rod 705 is installed on the top of the driving block 407, the linkage rod 705 passes through the slide 701 and extends out of the inner cavity of the workbench 1, the linkage plate 706 is arranged at the top of the workbench 1, the slide groove 702 is opened on the lower surface of the linkage plate 706, the middle part of the slide groove 702 is inclined, so that there is a distance difference between the two ends of the slide groove 702 in the horizontal direction, and the top end of the linkage rod 705 is installed in the slide groove 702. When the linkage rod 705 moves along the slide 701, through its cooperation with the slide groove 702, the linkage plate 706 can be moved away from the adsorption placement mechanism 3, and the linkage rod 705 moves in the opposite direction, which will make the linkage plate 706 close to the adsorption placement mechanism 3. The limiting groove 704 is installed on the top of the workbench 1 and avoids the position of the slide 701. The limiting block 703 is installed in the limiting groove 704, and the limiting block 703 is connected to the linkage plate 706. The limiting block 703 and the limiting groove 704 slide relatively to limit the moving direction of the linkage plate 706. At the same time, the inner cavities of the limiting block 703 and the limiting groove 704 are both narrow at the top and wide at the bottom to prevent the two from detaching from each other.

[0051] The working principle of the linkage part 7 in this embodiment when in use is as follows: when the driving block 407 moves, the linkage rod 705 enters the inner cavity of the slide groove 702 and slides therein, so that the linkage rod 705 uses the movement of the slide groove 702 to make the linkage plate 706 drive the bracket 2 away from the adsorption placement mechanism 3. When the linkage rod 705 slides out of the slide groove 702, the linkage plate 706 stops moving. Conversely, when the linkage rod 705 enters the slide groove 702 in the opposite direction, the linkage plate 706 can be reset.

[0052] In addition, another embodiment of the present invention further provides a method for using a fully automatic appearance inspection device for FPC, comprising: Place the FPC on the adsorption placement mechanism 3 that is not connected to the turntable 404, so that the FPC is laid flat on the top of the top plate 302; The flip mechanism 4 is turned on, and the flip mechanism 4 preferentially moves the bracket 2 away from the adsorption placement mechanism 3 by cooperating with the linkage part 7; Then, the adsorption placement mechanism 3 connected to the flipping mechanism 4 flips over, and the two adsorption placement mechanisms 3 are attached to each other to clamp the FPC; The flip mechanism 4 continues to operate to achieve docking of the driving mechanism 5 with the adsorption placement mechanism 3, and the driving mechanism 5 is turned on to enable the adsorption placement mechanism 3 that is not connected to the flip mechanism 4 to start the adsorption action, and the other adsorption placement mechanism 3 starts the release action, and the FPC is adsorbed; The driving mechanism 5 and the flipping mechanism 4 are reset in sequence, the adsorption placement mechanism 3 connected to the flipping mechanism 4 is reset, and at the same time, the linkage part 7 drives the bracket 2 to reset, and the front side of the FPC is photographed using the industrial camera 201.

[0053] The following steps are also included: The flip mechanism 4 is turned on again, and the flip mechanism 4 preferentially moves the bracket 2 away from the adsorption placement mechanism 3 through the cooperation of the linkage part 7, and then the adsorption placement mechanism 3 connected to the flip mechanism 4 is flipped again, and the two adsorption placement mechanisms 3 are attached to each other; The flip mechanism 4 continues to operate, so that the driving mechanism 5 is docked with the adsorption placement mechanism 3 again, and the driving mechanism 5 is turned on to start the release action of the adsorption placement mechanism 3 that is not connected to the flip mechanism 4, and the other adsorption placement mechanism 3 starts the adsorption action, and the FPC is tightly adsorbed by the adsorption placement mechanism 3 connected to the flip mechanism 4; The driving mechanism 5 and the flipping mechanism 4 are reset in sequence, and the adsorption placement mechanism 3 connected to the flipping mechanism 4 is reset. At this time, the FPC is turned over, and at the same time, the linkage part 7 drives the bracket 2 to reset, and the back of the FPC is photographed using the industrial camera 201.

[0054] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic appearance inspection device for FPC, characterized in that: The invention comprises a workbench (1), a bracket (2) and an adsorption placement mechanism (3), wherein the workbench (1) is a hollow cavity, and the top of the workbench (1) is open, the bracket (2) is mounted on the top of the workbench (1), an industrial camera (201) is installed on the top of the bracket (2), and there are two adsorption placement mechanisms (3), the two adsorption placement mechanisms (3) are symmetrically arranged in the inner cavity of the workbench (1), and the tops of the two adsorption placement mechanisms (3) correspond to the industrial camera (201); One of the adsorption and placement mechanisms (3) is rotatably arranged in the inner cavity of the workbench (1), and the inner cavity of the workbench (1) is also equipped with a flipping mechanism (4), and the flipping mechanism (4) can drive one of the adsorption and placement mechanisms (3) to rotate and fit with the other adsorption and placement mechanism (3).

2. The fully automatic appearance inspection equipment for FPC according to claim 1 is characterized in that: The adsorption placement mechanism (3) comprises a shell (301), a top plate (302), air holes (303), a sleeve (304), a lifting plate (305) and a piston rod (306); the shell (301) is a hollow cavity with an open top; the top plate (302) is fixedly mounted on the top of the shell (301); the number of the air holes (303) is a plurality, and the plurality of air holes (303) are arranged in an array on the top plate (302); the number of the sleeves (304) is a plurality, and the plurality of The sleeves (304) are respectively mounted in an array at the bottom end of the top plate (302), and the inner cavities of several of the sleeves (304) are respectively communicated with several of the air holes (303); the lifting plate (305) is arranged in the inner cavity of the outer shell (301), and the number of the piston rods (306) is several, and several of the piston rods (306) are respectively mounted in an array on the upper surface of the lifting plate (305), and the top ends of several of the piston rods (306) extend into the inner cavities of several of the sleeves (304).

3. The fully automatic appearance inspection equipment for FPC according to claim 2 is characterized in that: The adsorption placement mechanism (3) further comprises a first lead screw (307), a moving block (308), a connecting block (309), a rotating rod (3010), a docking piece (3011) and a first positioning rod (3012), wherein the first lead screw (307) is rotatably arranged at the bottom of the inner cavity of the housing (301), the number of the moving blocks (308) is two, and the two moving blocks (308) are respectively threadedly connected to the first lead screw (307); the number of the connecting blocks (309) is two, and the two connecting blocks (309) are respectively installed at the bottom of the inner cavity of the housing (301). At the bottom end of the lifting plate (305), the two ends of the rotating rod (3010) are rotatably connected to the moving block (308) and the connecting block (309) respectively, and the rotating rod (3010) is arranged tilted; the docking piece (3011) is rotatably mounted on the outer wall of the outer shell (301), and the docking piece (3011) is connected to one end of the first lead screw (307); the first positioning rod (3012) is mounted on the bottom of the inner cavity of the outer shell (301), and the first positioning rod (3012) slides through the moving block (308).

4. The fully automatic appearance inspection equipment for FPC according to claim 3 is characterized by: The turning mechanism (4) comprises a driving beam (401), a limiting plate (402), a lever (403), a rotating disk (404), a convex tooth (405), a brake plate (4051), a second positioning rod (406), a driving block (407), a second lead screw (408) and a first motor (409); the driving beam (401) is arranged in the inner cavity of the workbench (1); there are two limiting plates (402), which are respectively arranged on the driving beam (401) and the second lead screw (408). 1); the number of the shifting rods (403) is a plurality, and the plurality of the shifting rods (403) are arranged on the driving beam frame (401), and the shifting rods (403) correspond to the gap between the two limit plates (402); the rotating disk (404) is located at the top of the limit plates (402), and the rotating disk (404) is connected to one of the top plates (302); the number of the convex teeth (405) is a plurality, and the plurality of the convex teeth (405) are arranged on the driving beam frame (401), and the plurality of the shifting rods (403) correspond to the gap between the two limit plates (402); the rotating disk (404) is located at the top of the limit plates (402), and the rotating disk (404) is connected to one of the top plates (302); 5) is arranged on the rotating disk (404), the convex tooth (405) is matched with the shifting rod (403), there are two brake plates (4051), the two brake plates (4051) are arranged on the rotating disk (404), and the two brake plates (4051) are symmetrically arranged relative to the convex tooth (405); the second positioning rod (406) is fixedly installed in the inner cavity of the workbench (1), and the second positioning rod (406) passes through the driving beam frame (401); the driving block (407) is installed on the side of the driving beam frame (401) away from the rotating disk (404), the second lead screw (408) is rotatably installed in the inner cavity of the workbench (1), the driving block (407) is threadedly connected to the second lead screw (408), the first motor (409) is installed in the inner cavity of the workbench (1), and the output end of the first motor (409) is connected to one end of the second lead screw (408).

5. The fully automatic appearance inspection equipment for FPC according to claim 4 is characterized in that: The inner cavity of the workbench (1) is also equipped with a driving mechanism (5); The driving mechanism (5) comprises a protective shell (501), a second motor (502), a toothed belt wheel (503), a toothed belt (504), a connector (505), a driving plate (506), a first driving slot (507), a first driving rod (508), a second driving slot (509), and a second driving rod (5010); the protective shell (501) is mounted in the inner cavity of the workbench (1); the second motor (502) is mounted in the inner cavity of the protective shell (501); there are two toothed belt wheels (503), the two toothed belt wheels (503) are rotatably mounted in the inner cavity of the protective shell (501); the toothed belt (504) is connected between the two toothed belt wheels (503); there are two connectors (505), the two connectors (505) are rotatably mounted on the outer wall of the protective shell (501), and the two connectors (505) are respectively connected to the two toothed belt wheels (503); the driving plate (506) is arranged between the protective shell (501) and the driving beam frame (401); the first driving groove (507) is opened on the side of the driving plate (506) opposite to the protective shell (501); the first driving rod (508) is connected to the protective shell (501), and the first driving rod (508) is installed in the first driving groove (507); the second driving groove (509) is opened on the side of the driving plate (506) opposite to the driving beam frame (401); the second driving rod (5010) is connected to the driving beam frame (401), and the second driving rod (5010) is installed in the second driving groove (509); The second driving groove comprises a low section (5091), a transition section (5092) and a high section (5093); A third positioning rod (5011) is also installed at the bottom end of the inner cavity of the workbench (1), and a sliding block (5012) is installed at the bottom end of the protective shell (501), and the sliding block (5012) is slidably sleeved on the third positioning rod (5011).

6. The fully automatic appearance inspection equipment for FPC according to claim 5 is characterized in that: A correction groove (30111) and a clamping groove (30112) are provided at one end of the docking member (3011) away from the housing (301), and the correction groove (30111) and the clamping groove (30112) are connected, and the cross-sectional width of the correction groove (30111) is arranged to be contracted from the clamping groove (30112) toward the housing (301); A clamping block (5051) is installed on a side of the connector (505) away from the protective shell (501), and a correction sheet (5052) is installed on a side of the clamping block (5051) away from the protective shell (501); the correction sheet (5052) is adapted in shape to the correction slot (30111), and the clamping block (5051) is adapted in shape to the clamping slot (30112).

7. The fully automatic appearance inspection equipment for FPC according to claim 5 is characterized in that: A linkage portion (7) is provided between the driving block (407) and the bracket (2), and the linkage portion (7) enables the bracket (2) to move in a horizontal direction perpendicular to the movement direction of the driving block (407) while the driving block (407) moves.

8. The fully automatic appearance inspection equipment for FPC according to claim 7 is characterized in that: The linkage part (7) comprises a slideway (701), a slide groove (702), a limiting block (703), a limiting groove (704), a linkage rod (705) and a linkage plate (706); the slideway (701) is arranged at the top of the workbench (1); the linkage rod (705) is mounted on the top of the driving block (407); the linkage rod (705) passes through the slideway (701) and extends out of the inner cavity of the workbench (1); the linkage plate (706) is arranged at the top of the workbench (1); the slide groove (702) is arranged on the lower surface of the linkage plate (706); the top of the linkage rod (705) is mounted in the slide groove (702); the limiting groove (704) is mounted on the top of the workbench (1); the limiting block (703) is mounted in the limiting groove (704); and the limiting block (703) is connected to the linkage plate (706).

9. The method for using the fully automatic appearance inspection device for FPC according to any one of claims 1 to 8, characterized in that: The steps include: Placing the FPC on the adsorption placement mechanism (3) that is not connected to the rotating disk (404), so that the FPC is laid flat on the top of the top plate (302); The flipping mechanism (4) is turned on, and the flipping mechanism (4) preferentially moves the bracket (2) away from the adsorption placement mechanism (3) through the cooperation of the linkage part (7); Subsequently, the adsorption placement mechanism (3) connected to the flip mechanism (4) rotates, and the two adsorption placement mechanisms (3) are attached to each other to press the FPC tightly; The flip mechanism (4) continues to operate to achieve docking of the driving mechanism (5) with the adsorption placement mechanism (3), and the driving mechanism (5) is turned on to enable the adsorption placement mechanism (3) that is not connected to the flip mechanism (4) to start the adsorption action, and the other adsorption placement mechanism (3) starts the release action, and the FPC is adsorbed; The driving mechanism (5) and the flipping mechanism (4) are reset in sequence, the adsorption placement mechanism (3) connected to the flipping mechanism (4) is reset, and at the same time the linkage part (7) drives the bracket (2) to reset, and the front side of the FPC is photographed using the industrial camera (201).

10. The method for using the fully automatic appearance inspection device for FPC according to claim 9, characterized in that: The following steps are also included: The flipping mechanism (4) is turned on again, and the flipping mechanism (4) preferentially moves the bracket (2) away from the adsorption placement mechanism (3) through the cooperation of the linkage part (7), and then the adsorption placement mechanism (3) connected to the flipping mechanism (4) is flipped again, and the two adsorption placement mechanisms (3) are attached to each other; The flip mechanism (4) continues to operate, so that the driving mechanism (5) is docked with the adsorption placement mechanism (3) again, and the driving mechanism (5) is turned on to cause the adsorption placement mechanism (3) that is not connected to the flip mechanism (4) to start the release action, and the other adsorption placement mechanism (3) starts the adsorption action, and the FPC is tightly adsorbed by the adsorption placement mechanism (3) connected to the flip mechanism (4); The driving mechanism (5) and the flipping mechanism (4) are reset in sequence, and the adsorption placement mechanism (3) connected to the flipping mechanism (4) is reset. At this time, the FPC is turned over, and at the same time, the linkage part (7) drives the bracket (2) to reset, and the back of the FPC is photographed using the industrial camera (201).

Images