CN112881411B - AOI automatic optical nondestructive testing equipment - Google Patents
AOI automatic optical nondestructive testing equipment Download PDFInfo
- Publication number
- CN112881411B CN112881411B CN202110077936.4A CN202110077936A CN112881411B CN 112881411 B CN112881411 B CN 112881411B CN 202110077936 A CN202110077936 A CN 202110077936A CN 112881411 B CN112881411 B CN 112881411B
- Authority
- CN
- China
- Prior art keywords
- groove
- conveying
- circuit board
- block
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0439—Rotary sample carriers, i.e. carousels
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Control Of Conveyors (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention belongs to the technical field of detection equipment, and particularly relates to AOI automatic optical nondestructive detection equipment which comprises a conveying unit, a detection unit and a turnover unit, wherein the conveying unit comprises a support frame, a fixed table, a middle groove, a first conveying groove, a second conveying groove, a first conveying belt and a second conveying belt, and the support frame is uniformly arranged at the bottom of the fixed table; according to the invention, the detection equipment is arranged on the production line of the circuit board, the detection unit and the turnover unit are arranged on the fixed table of the detection equipment, the turnover unit is started through the control center, the feeding machine body drives the turnover block to be separated from the production line, and the motor drives the turnover block to rotate, so that the detection cameras on the protection shell can detect the circuit boards at different angles, defects on the circuit boards can be found out and eliminated in time, and the production quality of the circuit boards is ensured; and the circuit board can rapidly enter the next station after the detection is finished, so that the detection efficiency of the circuit board is greatly improved.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to AOI automatic optical nondestructive detection equipment.
Background
AOI (Automated Optical Inspection) is called automatic Optical Inspection in Chinese, and is a device for inspecting common defects encountered in welding production based on Optical principles. AOI is a new emerging testing technology, but the development is rapid, and AOI testing equipment is released by many manufacturers. During automatic detection, the machine automatically scans the PCB through the camera, acquires images, compares the tested welding spots with qualified parameters in the database, inspects the defects on the PCB through image processing, and displays/marks the defects through a display or an automatic mark for repair personnel to repair. Various different mounting errors and welding defects on the PCB are automatically detected by using a high-speed high-precision vision processing technology. The PCB board can range from a fine pitch high density board to a low density large size board, and can provide an on-line inspection scheme to improve production efficiency, and soldering quality. By using AOI as a defect reduction tool, errors are located and eliminated early in the assembly process to achieve good process control. Early detection of defects will avoid sending a bad board to a subsequent assembly stage, AOI will reduce repair costs and will avoid scrapping an unrepairable circuit board.
The technical scheme of the automatic turn-over device for automatically detecting the PCB by the AOI also appears in the prior art, for example, a Chinese patent with the application number of CN2015109223372 discloses the automatic turn-over device for automatically detecting the PCB by the AOI and the detection method thereof, the automatic turn-over device comprises a manipulator, an automatic turn-over mechanism and an AOI automatic detection machine, wherein vacuum chucks are arranged on the manipulator and the automatic turn-over mechanism, a product test area is arranged on the AOI automatic detection machine, the automatic turn-over mechanism is arranged above the product test area, and the manipulator can grab the PCB through the vacuum chucks and moves between the automatic turn-over mechanism and the AOI automatic detection mechanism; the automatic detection mechanism of AOI carries out quality detection on the PCB to be detected, and sends detection result information to the manipulator and the automatic turnover mechanism, the manipulator carries out grabbing, loosening and conveying instructions on the PCB to be detected, and the automatic turnover mechanism carries out grabbing and turnover instructions on the PCB to be detected; according to the invention, the turnover of the PCB in the detection process is realized through the manipulator and the automatic turnover mechanism, and the automatic double-side detection of the PCB is realized through the AOI automatic detection machine, so that the automation degree is high, and the production efficiency is improved; however, the above invention still has the defect that for the PCB board with components on both sides, the surface of the PCB board has a large number of components and welding seams, and when the vacuum chuck contacts the surface of the PCB board, the PCB board is difficult to be fixed, so that the technical scheme is limited.
In view of the above, the detection device is installed on the production line of the circuit board, the detection unit and the turnover unit are arranged on the fixed table of the detection device, the turnover unit is started through the control center, the feeding machine body drives the turnover block to be separated from the production line, the motor drives the turnover block to rotate, the detection cameras on the protection shell can detect the circuit boards at different angles, defects on the circuit boards can be found out and eliminated in time, and the production quality of the circuit boards is ensured; and the circuit board can rapidly enter the next station after the detection is finished, so that the detection efficiency of the circuit board is greatly improved.
Disclosure of Invention
In order to make up for the defects of the prior art, the problems that the circuit board needs to be manually installed when the circuit board is installed by the existing AOI automatic optical nondestructive testing equipment, the labor is consumed, and the testing efficiency is low are solved; the invention provides AOI automatic optical nondestructive testing equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to AOI automatic optical nondestructive testing equipment, which comprises a conveying unit, a detecting unit and a turnover unit, wherein the conveying unit comprises a support frame, a fixed table, a middle groove, a first conveying groove, a second conveying groove, a first conveying belt and a second conveying belt;
the detection unit comprises a protection shell, a detection machine body, an operation screen, a control center, detection cameras and an LED light source, wherein the protection shell is arranged above the fixed table, the detection cameras are uniformly arranged on the inner surface of the top of the protection shell, and the end part of each detection camera points to the direction close to the first conveying groove; the LED light sources are uniformly arranged at positions between the detection cameras, the detection machine body is arranged on one side of the fixed platform, and the control center is arranged in the detection machine body; the first conveyor belt, the second conveyor belt, the detection camera and the LED light source are controlled by a control center, and the operation screen is installed at the top of the detection machine body;
the turnover unit comprises a feeding machine body, a moving groove, a fixed shaft, a motor, a turnover block, a third conveying groove, a third conveying belt and a pressure sensor, wherein the feeding machine body is symmetrically arranged in the protective shell, a feeding device is arranged in the feeding machine body, the moving groove is formed in the opposite surface of the feeding machine body, the fixed shaft is arranged in the moving groove, the end part, located in the moving groove, of the fixed shaft is connected with the feeding device, the motor is arranged at the end part, far away from the moving groove, of the fixed shaft, and the turnover block is arranged at the output shaft of the motor; the turnover block is positioned between the first conveyor belt and the second conveyor belt, inclined grooves are formed in the upper bottom surface and the lower bottom surface of the turnover block, and the inclined grooves are larger than the circuit board in length; a third conveying groove is formed in the middle of the opposite surface of the turnover block and is respectively communicated with the first conveying groove and the second conveying groove, and a third conveying belt is arranged on the side face of the third conveying groove; and a pressure sensor is arranged at the middle part of the lower bottom surface of the third conveying groove and used for transmitting detected pressure information to a control center.
When the circuit board processing device works, the processed end part of the circuit board is embedded into the first conveying groove, and the lower bottom surface of the end part of the circuit board is contacted with the surface of the first conveying belt in the first conveying groove; when the control center starts the detection equipment, the first conveyor belt rotates and enables the contacted circuit board to move in the first conveyor groove, and the moved circuit board moves to the third conveyor groove after passing through a joint part of the first conveyor groove and the third conveyor groove; the side surface of the end part of the circuit board is tightly contacted with the surface of a third conveyor belt arranged on the side surface of a third conveying groove and is subjected to a clamping force pointing to the center, and the rotating third conveyor belt enables the circuit board to move in the third conveying groove; when the circuit board moves to the middle part of the third conveying groove, the pressure sensor on the lower bottom surface of the third conveying groove detects pressure and transmits information to the control center, the control center controls the third conveying belt to stop rotating and starts the feeding device in the feeding machine body, so that the fixed shaft drives the turnover block to move upwards in the moving groove, and at the moment, the circuit board is kept fixed by the clamping force of the third conveying belt and moves upwards along with the turnover block; when the turnover block moves to the highest point, the control center starts the detection camera and the LED light source, the detection camera performs imaging detection on elements and welding spots on the right upper surface of the circuit board, the LED light source provides lighting conditions for the work of the detection camera, and the chute on the turnover block enables light rays generated by the LED light source to be sufficiently contacted with the circuit board, so that the imaging detection of the detection camera is more accurate; after the detection of the right upper surface of the circuit board is finished, the control center controls the motor to rotate, so that the turnover block is acted by the motor and drives the circuit board to rotate and turn over, the detection camera can detect the surface of the circuit board from different angles in the rotation process of the circuit board, the possible defects on the circuit board are fully found, and after the detection is finished, the code number and the surface quality condition of the circuit board are displayed on the control screen and stored by the control center; then the control center controls the motor to drive the turnover block to restore the original angle, and the feeding machine body controls the fixed shaft to move downwards and drives the turnover block to restore, so that the third conveying groove is communicated with the second conveying groove again; the control center starts the third conveyor belt to enable the circuit board to be acted by the third conveyor belt, enter the second conveyor groove and continuously move to the next station; manpower participation is not needed in the detection process, the detection efficiency of the circuit board is greatly improved, and the manpower is saved.
Preferably, elastic lugs are uniformly arranged on the surface of the transmission roller of the third conveyor belt and are in close contact with the inner surface of the transmission belt of the third conveyor belt; under the action of the elastic lug, the outer surface of the transmission belt is in closer contact with the end part of the circuit board, so that the circuit board is prevented from falling off in the turnover process; when the circuit board turning device works, when the circuit board moves in the third conveying groove, the elastic lug on the surface of the transmission roller on the third conveying belt extrudes the inner surface of the transmission belt, so that the inner surface of the transmission belt is pressed and deformed and is in closer contact with the end surface of the circuit board, and the clamping force applied to the circuit board is further increased, so that the circuit board is further fixed and kept in a stable state in the turning process; and relative friction between the end part of the circuit board and the transmission belt is increased, so that the circuit board is kept stable when moving in the third conveying groove, and the circuit board is prevented from slipping in the third conveying groove, and the detection efficiency of the circuit board is influenced.
Preferably, in the transmission rollers on the third conveyor belt, the edge parts of the transmission rollers close to the first transmission groove and the second transmission groove respectively extend into the first transmission groove and the second transmission groove, and the first transmission groove is arranged at the part, close to the third transmission groove, of the upper bottom surfaces of the first transmission groove and the second transmission groove; the circuit board more conveniently passes through the joint parts of the first conveying groove, the second conveying groove and the third conveying groove by the action that one part of the third conveying belt respectively extends into the first conveying groove and the second conveying groove; when the circuit board conveying device works, a part of the transmission roller, which is close to the first transmission groove, on the third transmission belt is embedded into the first transmission groove, so that the circuit board is in contact with the third transmission belt in time when moving to the edge part of the first transmission groove, and the circuit board passes through the joint part of the first transmission groove and the third transmission groove under the common friction action of the first transmission belt and the third transmission belt, so that the phenomenon that the end part of the circuit board is skewed due to uneven stress when passing through the joint part, the circuit board is staggered with the third transmission groove, and the circuit board collides with the surface of the third transmission groove, and the circuit board is damaged is avoided; when the circuit board passes through the joint part of the third conveying groove and the second conveying groove, the circuit board passes through the joint part under the combined action of the second conveying belt and the third conveying belt, so that the circuit board is prevented from being damaged; in addition, when the turnover block moves under the action of the feeding machine body, the protruding transmission roller passes through the first groove to avoid colliding with the end side faces of the first conveying groove and the second conveying groove, and when the turnover block resets, the protruding transmission roller is embedded into the first conveying groove and the second conveying groove again, so that the third conveying groove on the turnover block is communicated with the first conveying groove and the second conveying groove again, and the third conveying groove is prevented from being dislocated with the first conveying groove and the second conveying groove.
Preferably, a guide plate is arranged at a position, close to a third conveying groove, in the first conveying groove, the middle part of the guide plate is rotatably connected with the lower bottom surface of the first conveying groove through a first shaft, the end part of the guide plate is contacted with the surface of the third conveying belt close to the end part of the guide plate, and the end part of the guide plate is connected with the side surface of the first conveying groove through a spring; when the circuit board is in operation, the lower bottom surface of the end part of the circuit board moves under the friction action when the circuit board moves in the first conveying groove, so that the end surface of the circuit board can be inclined to the side surface of the first conveying groove, and the end part of the circuit board is easy to be severely abraded with the surface of the third conveying belt when the inclined circuit board is contacted with the third conveying belt; therefore, the end part of the guide plate swings to a small extent in the direction close to the circuit board under the friction action of the surface of the third conveyor belt by arranging the guide plate in the first conveyor groove; therefore, when the circuit board moves in the first conveying groove and is in contact with the surface of the guide plate, the two sides of the circuit board are clamped by symmetrical clamping forces pointing to the center, so that the angle of the circuit board is adjusted under the action of the clamping forces, the end surface of the circuit board is parallel to the surface of the third conveying belt, the circuit board is smoothly embedded into a gap between the third conveying belts, and abrasion between the circuit board and the third conveying belts is reduced.
Preferably, the surface of the end part of the turnover block is provided with an inclined block, a guide block is arranged on the fixed table at a position corresponding to the inclined block, and the surface of the guide block close to the inclined block is an inclined plane; during operation, after the circuit board detects, when the turnover block drives the circuit board and resets, the inclined plane of turnover block side slope piece and the inclined plane of guide block on the fixed station contact each other, and the slope piece slides on the guide block for the turnover block receives the clamp force on the inclined plane on the perpendicular to slope piece, thereby makes the turnover block drive the slope piece imbed smoothly between the guide block and resume the original position, avoids the turnover block dislocation to appear at the in-process that resets.
Preferably, the inclined block is in sliding connection with a second groove formed in the end surface of the turnover block, and the inclined block is connected with the inner surface of the second groove through a spring; a limiting block is arranged below the inclined block of the inclined block, and a third groove is formed in the position, corresponding to the transmission roller, of the surface, close to the third conveying belt, of the limiting block; when the turnover table is in work, the circuit board is possibly separated from the third conveying groove when the turnover block rotates at an overlarge speed, so that a limiting block is arranged below the inclined block, when the turnover block is separated from the fixed table, the inclined block is separated from the guide block, the inclined block is not pressed any more and is reset under the action of the spring, and the limiting block below the inclined block moves downwards and is in contact with the surface of the end part of the third conveying groove, so that the inlet of the third conveying groove is sealed, and the circuit board is prevented from being separated from the third conveying groove and being damaged due to collision; meanwhile, a pressure sensor in the middle of the third conveying groove detects the change of the position of the circuit board and sends out a warning, so that maintenance personnel can check the turnover block in time and adjust the tightness of the third conveying belt; when the turnover block is reset, the inclined block is contacted with the guide block and is pressed to move, so that the limiting block is separated from the opening of the third conveying groove, and the circuit board can smoothly pass through the opening part of the third conveying groove; in addition, when the limiting block moves, the protruding transmission cylinder of the third conveying belt passes through the third groove on the limiting block, and collision between the protruding transmission cylinder and the limiting block is avoided.
The invention has the following beneficial effects:
1. according to the AOI automatic optical nondestructive testing equipment, the testing equipment is installed on a production line of a circuit board, the testing unit and the turnover unit are arranged on a fixing table of the testing equipment, the turnover unit is started through the control center, the feeding machine body drives the turnover block to be separated from the production line, the motor drives the turnover block to rotate, a testing camera on the protection shell can test the circuit board at different angles, defects on the circuit board can be found out and eliminated in time, and the production quality of the circuit board is guaranteed; and the circuit board can rapidly enter the next station after the detection is finished, so that the detection efficiency of the circuit board is greatly improved.
2. According to the AOI automatic optical nondestructive testing equipment, the elastic bumps are uniformly arranged on the surface of the transmission roller of the third conveyor belt, when a circuit board moves in the third conveyor groove, the elastic bumps on the surface of the transmission roller on the third conveyor belt extrude the inner surface of the transmission belt, so that the inner surface of the transmission belt is pressed and deformed and is in closer contact with the end surface of the circuit board, the clamping force on the circuit board is further increased, and the circuit board is further fixed and kept in a stable state in the turning process; and relative friction between the end part of the circuit board and the transmission belt is increased, so that the circuit board is kept stable when moving in the third conveying groove, and the circuit board is prevented from slipping in the third conveying groove, and the detection efficiency of the circuit board is influenced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
in the figure: the detection device comprises a conveying unit 1, a support frame 11, a fixed table 12, a guide block 121, a middle groove 13, a first conveying groove 14, a guide plate 141, a first shaft 142, a second conveying groove 15, a first conveying belt 16, a second conveying belt 17, a first groove 18, a detection unit 2, a protective shell 21, a detection machine body 22, an operation screen 23, a detection camera 24, an LED light source 25, a turnover unit 3, a feeding machine body 31, a moving groove 32, a fixed shaft 33, a motor 34, a turnover block 35, a chute 351, a second groove 352, a limiting block 353, a third groove 354, a third conveying groove 36, a third conveying belt 37, a transmission roller 371, an elastic lug 372, a transmission belt 373 and an inclined block 38.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the AOI automatic optical nondestructive testing apparatus according to the present invention includes a conveying unit 1, a testing unit 2, and a turnover unit 3, where the conveying unit 1 includes a supporting frame 11, a fixed table 12, a middle groove 13, a first conveying groove 14, a second conveying groove 15, a first conveyor belt 16, and a second conveyor belt 17, the supporting frame 11 is uniformly installed at the bottom of the fixed table 12, the middle part of the fixed table 12 is provided with the middle groove 13, opposite side surfaces of the middle groove 13 are respectively provided with the first conveying groove 14 and the second conveying groove 15, and the first conveying groove 14 and the second conveying groove 15 are respectively provided with the first conveyor belt 16 and the second conveyor belt 17;
the detection unit 2 comprises a protection shell 21, a detection machine body 22, an operation screen 23, a control center, detection cameras 24 and an LED light source 25, wherein the protection shell 21 is installed above the fixed table 12, the detection cameras 24 are uniformly installed on the inner surface of the top of the protection shell 21, and the end part of each detection camera 24 points to the direction close to the first conveying groove 14; the LED light sources 25 are uniformly arranged at positions between the detection cameras 24, the detection machine body 22 is arranged at one side of the fixed table 12, and the control center is arranged in the detection machine body 22; the first conveyor belt 16, the second conveyor belt 17, the detection camera 24 and the LED light source 25 are controlled by a control center, and the operation screen 23 is arranged at the top of the detection machine body 22;
the turnover unit 3 comprises a feeding machine body 31, a moving groove 32, a fixed shaft 33, a motor 34, a turnover block 35, a third conveying groove 36, a third conveying belt 37 and a pressure sensor, wherein the feeding machine body 31 is symmetrically arranged inside the protective shell 21, a feeding device is arranged inside the feeding machine body 31, the moving groove 32 is arranged on the opposite surface of the feeding machine body 31, the fixed shaft 33 is arranged inside the moving groove 32, the end part, located in the moving groove 32, of the fixed shaft 33 is connected with the feeding device, the end part, far away from the moving groove 32, of the fixed shaft 33 is provided with the motor 34, and the output shaft of the motor 34 is provided with the turnover block 35; the turnover block 35 is positioned between the first conveyor belt 16 and the second conveyor belt 17, inclined grooves 351 are formed in the upper bottom surface and the lower bottom surface of the turnover block 35, and the lengths of the inclined grooves 351 are greater than that of the circuit board; a third conveying groove 36 is formed in the middle of the opposite surface of the turnover block 35, the third conveying groove 36 is respectively communicated with the first conveying groove 14 and the second conveying groove 15, and a third conveying belt 37 is arranged on the side surface of the third conveying groove 36; and a pressure sensor is arranged at the middle part of the lower bottom surface of the third conveying groove 36 and used for transmitting detected pressure information to a control center.
When the circuit board processing device works, the processed end part of the circuit board is embedded into the first conveying groove 14, and the lower bottom surface of the end part of the circuit board is in surface contact with the first conveying belt 16 in the first conveying groove 14; when the control center starts the detection equipment, the first conveyor belt 16 rotates and enables the contacted circuit board to move in the first conveyor groove 14, and the moved circuit board moves to the third conveyor groove 36 after passing through the joint part of the first conveyor groove 14 and the third conveyor groove 36; at this time, the side of the end of the circuit board is in close contact with the surface of the third conveyor belt 37 installed on the side of the third conveying groove 36 and is subjected to a centrally directed clamping force, and the circuit board is moved in the third conveying groove 36 by the rotating third conveyor belt 37; when the circuit board moves to the middle part of the third conveying groove 36, the pressure sensor on the lower bottom surface of the third conveying groove 36 detects pressure and transmits information to the control center, the control center controls the third conveying belt 37 to stop rotating, and starts the feeding device in the feeding machine body 31, so that the fixed shaft 33 drives the turnover block 35 to move upwards in the moving groove 32, and at the moment, the circuit board is kept fixed by the clamping force of the third conveying belt 37 and moves upwards along with the turnover block 35; when the turnover block 35 moves to the highest point, the control center starts the detection camera 24 and the LED light source 25, the detection camera 24 performs imaging detection on elements and welding spots on the right upper surface of the circuit board, the LED light source 25 provides lighting conditions for the work of the detection camera 24, and the inclined groove 351 in the turnover block 35 enables light rays generated by the LED light source 25 to be fully contacted with the circuit board, so that the imaging detection of the detection camera 24 is more accurate; after the detection of the upper surface of the circuit board is finished, the control center controls the motor 34 to rotate, so that the turnover block 35 is acted by the motor 34 and drives the circuit board to rotate and turn over, the detection camera 24 can detect the surface of the circuit board from different angles in the rotation process of the circuit board, the possible defects on the circuit board are fully found, and after the detection is finished, the code number and the surface quality condition of the circuit board are displayed on the control screen and stored by the control center; then the control center controls the motor 34 to drive the turning block 35 to restore the original angle, and the feeding machine body 31 controls the fixed shaft 33 to move downwards and drives the turning block 35 to restore, so that the third conveying groove 36 is communicated with the second conveying groove 15 again; the control center starts the third conveyor belt 37 to enable the circuit board to be acted by the third conveyor belt 37, enter the second conveyor groove 15 and continue to move to the next station; manpower participation is not needed in the detection process, the detection efficiency of the circuit board is greatly improved, and the manpower is saved.
As a specific embodiment of the present invention, the surface of the transmission roller 371 of the third conveyor belt 37 is uniformly provided with elastic protrusions 372, and the elastic protrusions 372 are in close contact with the inner surface of the transmission belt 373 of the third conveyor belt 37; under the action of the elastic lug 372, the contact between the outer surface of the transmission belt 373 and the end part of the circuit board is tighter, and the circuit board is prevented from falling off in the turning process; in operation, when the circuit board moves in the third transfer groove 36, the elastic lug 372 on the surface of the transfer roller 371 on the third transfer belt 37 presses the inner surface of the transfer belt 373, so that the inner surface of the transfer belt 373 is pressed and deformed and is in closer contact with the end surface of the circuit board, the clamping force applied to the circuit board is further increased, and the circuit board is further fixed and kept in a stable state in the turning process; and the relative friction between the end part of the circuit board and the transmission belt 373 is increased, so that the circuit board keeps stable when moving in the third transmission groove 36, and the circuit board is prevented from slipping in the third transmission groove 36, and the detection efficiency of the circuit board is influenced.
In a specific embodiment of the present invention, in the driving roller 371 on the third conveyor belt 37, the edge portions of the driving roller 371 close to the first transfer groove 14 and the second transfer groove 15 extend into the first transfer groove 14 and the second transfer groove 15, respectively, and the first transfer groove 18 is arranged on the bottom surfaces of the first transfer groove 14 and the second transfer groove 15 close to the third transfer groove 36; the circuit board more conveniently passes through the joint part of the first conveying groove 14, the second conveying groove 15 and the third conveying groove 36 by the action that a part of the third conveying belt 37 respectively extends into the first conveying groove 14 and the second conveying groove 15; when the circuit board conveying device works, a part of the transmission roller 371 close to the transmission first conveying groove 14 on the third conveying belt 37 is embedded into the first conveying groove 14, so that the circuit board is timely contacted with the third conveying belt 37 when moving to the edge part of the first conveying groove 14, and the circuit board passes through the joint part of the first conveying groove 14 and the third conveying groove 36 under the common friction action of the first conveying belt 16 and the third conveying belt 37, so that the phenomenon that the end part of the circuit board is skewed due to uneven stress when passing through the joint part, so that the circuit board is dislocated with the third conveying groove 36, and the circuit board collides with the surface of the third conveying groove 36 to damage the circuit board is avoided; when the circuit board passes through the joint part of the third conveying groove 36 and the second conveying groove 15, the circuit board passes through the joint part under the combined action of the second conveying belt 17 and the third conveying belt 37, and the circuit board is prevented from being damaged; in addition, when the turnover block 35 moves under the action of the feeding body 31, the protruding driving roller 371 passes through the first slot 18 to avoid collision with the side surfaces of the end parts of the first transfer slot 14 and the second transfer slot 15, and when the turnover block 35 is reset, the protruding driving roller 371 is embedded into the first transfer slot 14 and the second transfer slot 15 again, so that the third transfer slot 36 on the turnover block 35 is communicated with the first transfer slot 14 and the second transfer slot 15 again, and the third transfer slot 36 is prevented from being misaligned with the first transfer slot 14 and the second transfer slot 15.
As a specific embodiment of the present invention, a guide plate 141 is disposed in the first conveying trough 14 at a position close to the third conveying trough 36, the middle part of the guide plate 141 is rotatably connected to the lower bottom surface of the first conveying trough 14 through a first shaft 142, the end of the guide plate 141 contacts with the surface of the adjacent third conveying belt 37, and the end of the guide plate 141 is connected to the side surface of the first conveying trough 14 through a spring; in operation, when the circuit board moves in the first conveying groove 14, the lower bottom surface of the end part of the circuit board moves under the friction action, so that the end surface of the circuit board may incline to the side surface of the first conveying groove 14, and when the inclined circuit board contacts with the third conveying belt 37, the end part of the circuit board is easy to be severely abraded with the surface of the third conveying belt 37; therefore, by arranging the guide plate 141 in the first conveying groove 14, the end part of the guide plate 141 swings slightly in the direction close to the circuit board under the friction action of the surface of the third conveying belt 37; therefore, when the circuit board moves in the first conveying groove 14 and contacts with the surface of the guide plate 141, the two sides of the circuit board are clamped by symmetrical clamping forces pointing to the center, so that the angle of the circuit board is adjusted under the action of the clamping forces, and the end surface of the circuit board is parallel to the surface of the third conveying belt 37, therefore, the circuit board is smoothly embedded into the gap between the third conveying belts 37, and the abrasion between the circuit board and the third conveying belts 37 is reduced.
As a specific embodiment of the present invention, an inclined block 38 is disposed on the end surface of the turnover block 35, a guide block 121 is disposed on the fixed table 12 at a position corresponding to the inclined block 38, and the surface of the guide block 121 close to the inclined block 38 is an inclined surface; in operation, after the circuit board detection is finished, when the turnover block 35 drives the circuit board to reset, the inclined plane of the inclined block 38 on the side surface of the turnover block 35 contacts with the inclined plane of the guide block 121 on the fixed platform 12, and the inclined block 38 slides on the guide block 121, so that the turnover block 35 is subjected to the clamping force perpendicular to the inclined plane on the inclined block 38, the turnover block 35 drives the inclined block 38 to be smoothly embedded between the guide blocks 121 and to be restored to the original position, and the dislocation of the turnover block 35 in the resetting process is avoided.
As a specific embodiment of the present invention, the inclined block 38 is slidably connected with a second groove 352 formed on the end surface of the turnover block 35, and the inclined block 38 is connected with the inner surface of the second groove 352 through a spring; a limiting block 353 is arranged below the inclined block 38 of the inclined block 38, and a third groove 354 is formed in a position, corresponding to the transmission roller 371, of the surface of the limiting block 353, close to the third conveying belt 37; when the turnover block 35 is separated from the fixed table 12, the inclined block 38 is separated from the guide block 121, so that the inclined block 38 is not pressed and is reset under the action of a spring, and the limiting block 353 below the inclined block 38 moves downwards and is in contact with the end surface of the third conveying groove 36, so that the inlet of the third conveying groove 36 is sealed, and the circuit board is prevented from being separated from the third conveying groove 36 and colliding to be damaged; meanwhile, a pressure sensor in the middle of the third conveying groove 36 detects the change of the position of the circuit board and gives a warning, so that maintenance personnel can check the turnover block 35 in time and adjust the tightness of the third conveying belt 37; when the turnover block 35 is reset, the inclined block 38 is contacted with the guide block 121 and is pressed to move, so that the limiting block 353 is separated from the opening of the third conveying groove 36, and the circuit board can smoothly pass through the opening part of the third conveying groove 36; in addition, when the limiting block 353 moves, the protruding transmission cylinder of the third conveying belt 37 passes through the third groove 354 on the limiting block 353, and the protruding transmission cylinder is prevented from colliding with the limiting block 353.
When the circuit board processing device works, the processed end part of the circuit board is embedded into the first conveying groove 14, and the lower bottom surface of the end part of the circuit board is in surface contact with the first conveying belt 16 in the first conveying groove 14; when the control center starts the detection equipment, the first conveyor belt 16 rotates and enables the contacted circuit board to move in the first conveyor groove 14, and the moved circuit board moves to the third conveyor groove 36 after passing through the joint part of the first conveyor groove 14 and the third conveyor groove 36; at this time, the side of the end of the circuit board is in close contact with the surface of the third conveyor belt 37 installed on the side of the third conveying groove 36 and is subjected to a centrally directed clamping force, and the circuit board is moved in the third conveying groove 36 by the rotating third conveyor belt 37; when the circuit board moves to the middle part of the third conveying groove 36, the pressure sensor on the lower bottom surface of the third conveying groove 36 detects pressure and transmits information to the control center, the control center controls the third conveying belt 37 to stop rotating, and starts the feeding device in the feeding machine body 31, so that the fixed shaft 33 drives the turnover block 35 to move upwards in the moving groove 32, and at the moment, the circuit board is kept fixed by the clamping force of the third conveying belt 37 and moves upwards along with the turnover block 35; when the turnover block 35 moves to the highest point, the control center starts the detection camera 24 and the LED light source 25, the detection camera 24 performs imaging detection on elements and welding spots on the right upper surface of the circuit board, the LED light source 25 provides lighting conditions for the work of the detection camera 24, and the inclined groove 351 in the turnover block 35 enables light rays generated by the LED light source 25 to be fully contacted with the circuit board, so that the imaging detection of the detection camera 24 is more accurate; after the detection of the upper surface of the circuit board is finished, the control center controls the motor 34 to rotate, so that the turnover block 35 is acted by the motor 34 and drives the circuit board to rotate and turn over, the detection camera 24 can detect the surface of the circuit board from different angles in the rotation process of the circuit board, the possible defects on the circuit board are fully found, and after the detection is finished, the code number and the surface quality condition of the circuit board are displayed on the control screen and stored by the control center; then the control center controls the motor 34 to drive the turning block 35 to restore the original angle, and the feeding machine body 31 controls the fixed shaft 33 to move downwards and drives the turning block 35 to restore, so that the third conveying groove 36 is communicated with the second conveying groove 15 again; the control center starts the third conveyor belt 37 to enable the circuit board to be acted by the third conveyor belt 37, enter the second conveyor groove 15 and continue to move to the next station; manpower is not needed in the detection process, so that the detection efficiency of the circuit board is greatly improved, and the manpower is saved; when the circuit board moves in the third transfer groove 36, the elastic lug 372 on the surface of the transfer roller 371 on the third transfer belt 37 presses the inner surface of the transfer belt 373, so that the inner surface of the transfer belt 373 is pressed and deformed and is in closer contact with the end surface of the circuit board, the clamping force applied to the circuit board is further increased, and the circuit board is further fixed and kept in a stable state in the turning process; the relative friction between the end part of the circuit board and the transmission belt 373 is increased, so that the circuit board keeps stable when moving in the third transmission groove 36, and the circuit board is prevented from slipping in the third transmission groove 36, and the detection efficiency of the circuit board is prevented from being influenced; because the lower bottom surface of the end of the circuit board moves under friction when the circuit board moves in the first conveying groove 14, the end surface of the circuit board may be inclined to the side surface of the first conveying groove 14, and thus the end of the circuit board is easily worn severely with the surface of the third conveying belt 37 when the inclined circuit board contacts the third conveying belt 37; therefore, by arranging the guide plate 141 in the first conveying groove 14, the end part of the guide plate 141 swings slightly in the direction close to the circuit board under the friction action of the surface of the third conveying belt 37; therefore, when the circuit board moves in the first conveying groove 14 and contacts with the surface of the guide plate 141, the two sides of the circuit board are clamped by symmetrical clamping forces pointing to the center, so that the angle of the circuit board is adjusted under the action of the clamping forces, and the end surface of the circuit board is parallel to the surface of the third conveying belt 37, therefore, the circuit board is smoothly embedded into the gap between the third conveying belt 37, and the abrasion between the circuit board and the third conveying belt 37 is reduced; when the rotation speed of the turnover block 35 is too high, the circuit board may be separated from the third conveying groove 36, therefore, a limit block 353 is arranged below the inclined block 38, when the turnover block 35 is separated from the fixed table 12, the inclined block 38 is separated from the guide block 121, therefore, the inclined block 38 is not pressed and is reset under the action of a spring, at the moment, the limit block 353 below the inclined block 38 moves downwards and is contacted with the end surface of the third conveying groove 36, the inlet of the third conveying groove 36 is sealed, and the circuit board is prevented from being separated from the third conveying groove 36 and being collided and damaged; meanwhile, a pressure sensor in the middle of the third conveying groove 36 detects the change of the position of the circuit board and gives a warning, so that maintenance personnel can check the turnover block 35 in time and adjust the tightness of the third conveying belt 37; when the turnover block 35 is reset, the inclined block 38 is contacted with the guide block 121 and is pressed to move, so that the limiting block 353 is separated from the opening of the third conveying groove 36, and the circuit board can smoothly pass through the opening part of the third conveying groove 36; in addition, when the limiting block 353 moves, the protruding transmission cylinder of the third conveying belt 37 passes through the third groove 354 on the limiting block 353, and the protruding transmission cylinder is prevented from colliding with the limiting block 353.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An AOI automatic optical nondestructive testing device is characterized in that: the automatic turnover device comprises a conveying unit (1), a detection unit (2) and a turnover unit (3), wherein the conveying unit (1) comprises a support frame (11), a fixed table (12), a middle groove (13), a first conveying groove (14), a second conveying groove (15), a first conveying belt (16) and a second conveying belt (17), the support frame (11) is uniformly installed at the bottom of the fixed table (12), the middle part of the fixed table (12) is provided with the middle groove (13), the opposite side surfaces of the middle groove (13) are respectively and sequentially provided with the first conveying groove (14) and the second conveying groove (15), and the first conveying belt (16) and the second conveying belt (17) are respectively arranged in the first conveying groove (14) and the second conveying groove (15);
the detection unit (2) comprises a protection shell (21), a detection machine body (22), an operation screen (23), a control center, detection cameras (24) and an LED light source (25), wherein the protection shell (21) is installed above the fixed table (12), the detection cameras (24) are uniformly installed on the inner surface of the top of the protection shell (21), and the end part of each detection camera (24) points to the direction close to the first conveying groove (14); the LED light sources (25) are uniformly arranged at positions among the detection cameras (24), the detection machine body (22) is arranged on one side of the fixed platform (12), and the control center is arranged in the detection machine body (22); the first conveyor belt (16), the second conveyor belt (17), the detection camera (24) and the LED light source (25) are controlled by a control center, and the operation screen (23) is installed at the top of the detection machine body (22);
the turnover unit (3) comprises a feeding machine body (31), a moving groove (32), a fixed shaft (33), a motor (34), a turnover block (35), a third conveying groove (36), a third conveying belt (37) and a pressure sensor, wherein the feeding machine body (31) is symmetrically arranged inside the protective shell (21), a feeding device is arranged inside the feeding machine body (31), the moving groove (32) is formed in the opposite surface of the feeding machine body (31), the fixed shaft (33) is arranged inside the moving groove (32), the end part, located in the moving groove (32), of the fixed shaft (33) is connected with the feeding device, the motor (34) is arranged at the end part, far away from the moving groove (32), of the fixed shaft (33), and the turnover block (35) is arranged on an output shaft of the motor (34); the turnover block (35) is positioned between the first conveyor belt (16) and the second conveyor belt (17), inclined grooves (351) are formed in the upper bottom surface and the lower bottom surface of the turnover block (35), and the lengths of the inclined grooves (351) are greater than that of the circuit board; a third conveying groove (36) is formed in the middle of the opposite surface of the turnover block (35), the third conveying groove (36) is communicated with the first conveying groove (14) and the second conveying groove (15) respectively, and a third conveying belt (37) is arranged on the side face of the third conveying groove (36); and a pressure sensor is arranged at the middle part of the lower bottom surface of the third conveying groove (36), and the pressure sensor is used for transmitting detected pressure information to a control center.
2. An AOI automatic optical nondestructive inspection apparatus according to claim 1 wherein: elastic lugs (372) are uniformly arranged on the surface of the transmission roller (371) of the third conveyor belt (37), and the elastic lugs (372) are tightly contacted with the inner surface of the transmission belt (373) of the third conveyor belt (37); through the effect of elasticity lug (372), make the contact between drive belt (373) surface and the circuit board tip inseparabler, avoid the circuit board to appear droing in turn-over process.
3. An AOI automatic optical nondestructive inspection apparatus according to claim 2 wherein: in the transmission rollers (371) on the third conveyor belt (37), the edge parts of the transmission rollers (371) close to the first transmission groove (14) and the second transmission groove (15) respectively extend into the first transmission groove (14) and the second transmission groove (15), and the first transmission groove (18) is arranged at the part, close to the third transmission groove (36), of the upper bottom surfaces of the first transmission groove (14) and the second transmission groove (15); due to the effect that a part of the third conveying belt (37) extends into the first conveying groove (14) and the second conveying groove (15) respectively, the circuit board can more conveniently pass through the joint part of the first conveying groove (14), the second conveying groove (15) and the third conveying groove (36).
4. An AOI automatic optical nondestructive inspection apparatus according to claim 3 wherein: the position that is close to No. three conveyer trough (36) in conveyer trough (14) is equipped with guide board (141), the middle part of guide board (141) is connected through a axle (142) and a conveyer trough (14) lower bottom surface rotation, guide board (141) tip contacts with No. three conveyer belt (37) surfaces that are close to mutually, and guide board (141) tip links to each other through spring and conveyer trough (14) side.
5. An AOI automatic optical nondestructive inspection apparatus according to claim 4 wherein: the end surface of the turnover block (35) is provided with an inclined block (38), the part of the fixed table (12) corresponding to the inclined block (38) is provided with a guide block (121), and the surface of the guide block (121) close to the inclined block (38) is an inclined surface.
6. An AOI automatic optical nondestructive inspection apparatus according to claim 5 wherein: the inclined block (38) is in sliding connection with a second groove (352) formed in the end surface of the turnover block (35), and the inclined block (38) is connected with the inner surface of the second groove (352) through a spring; a limiting block (353) is arranged below the inclined block (38), and a third groove (354) is formed in the position, corresponding to the transmission roller (371), of the surface, close to the third conveying belt (37), of the limiting block (353).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077936.4A CN112881411B (en) | 2021-01-20 | 2021-01-20 | AOI automatic optical nondestructive testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077936.4A CN112881411B (en) | 2021-01-20 | 2021-01-20 | AOI automatic optical nondestructive testing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112881411A CN112881411A (en) | 2021-06-01 |
| CN112881411B true CN112881411B (en) | 2022-01-11 |
Family
ID=76051174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110077936.4A Active CN112881411B (en) | 2021-01-20 | 2021-01-20 | AOI automatic optical nondestructive testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112881411B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281259B (en) * | 2021-07-01 | 2022-12-02 | 昆山宸泽测控科技有限公司 | AOI vision test system for scratch detection of mobile phone wireless charging base |
| CN117074427B (en) * | 2023-08-22 | 2024-05-03 | 梅州鼎泰电路板有限公司 | Quick detection device for printed circuit board circuit |
| CN117330583B (en) * | 2023-09-28 | 2024-03-26 | 北京微科思创科技有限公司 | Semiconductor illumination detection equipment and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59119245A (en) * | 1982-12-27 | 1984-07-10 | Hitachi Ltd | Automatic positioning device |
| CN105259182A (en) * | 2015-10-28 | 2016-01-20 | 昆山鸿志犀自动化机电设备有限公司 | AOI vision detection device with automatic overturning function |
| CN106623009A (en) * | 2017-01-13 | 2017-05-10 | 浙江勇创智能装备科技有限公司 | Product front face and back face appearance vision detecting device |
| CN107202794A (en) * | 2017-06-12 | 2017-09-26 | 浙江欧威科技有限公司 | Full-automatic AOI detection devices |
| WO2019109249A1 (en) * | 2017-12-05 | 2019-06-13 | 深圳市宝盛自动化设备有限公司 | Aoi-based lcd panel inspection device |
| CN111781489A (en) * | 2020-07-02 | 2020-10-16 | 广德王氏智能电路科技有限公司 | Automatic PCB defect inspection equipment |
| CN212364117U (en) * | 2020-08-03 | 2021-01-15 | 东莞领杰金属精密制造科技有限公司 | Multi-directional appearance detection equipment |
-
2021
- 2021-01-20 CN CN202110077936.4A patent/CN112881411B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59119245A (en) * | 1982-12-27 | 1984-07-10 | Hitachi Ltd | Automatic positioning device |
| CN105259182A (en) * | 2015-10-28 | 2016-01-20 | 昆山鸿志犀自动化机电设备有限公司 | AOI vision detection device with automatic overturning function |
| CN106623009A (en) * | 2017-01-13 | 2017-05-10 | 浙江勇创智能装备科技有限公司 | Product front face and back face appearance vision detecting device |
| CN107202794A (en) * | 2017-06-12 | 2017-09-26 | 浙江欧威科技有限公司 | Full-automatic AOI detection devices |
| WO2019109249A1 (en) * | 2017-12-05 | 2019-06-13 | 深圳市宝盛自动化设备有限公司 | Aoi-based lcd panel inspection device |
| CN111781489A (en) * | 2020-07-02 | 2020-10-16 | 广德王氏智能电路科技有限公司 | Automatic PCB defect inspection equipment |
| CN212364117U (en) * | 2020-08-03 | 2021-01-15 | 东莞领杰金属精密制造科技有限公司 | Multi-directional appearance detection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112881411A (en) | 2021-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112881411B (en) | AOI automatic optical nondestructive testing equipment | |
| CN109060827B (en) | Intelligent visual detection and identification equipment | |
| JP3855733B2 (en) | Electronic component visual inspection apparatus and visual inspection method | |
| CN110694922A (en) | Glass defect on-line measuring equipment | |
| CN111069085B (en) | Cylindrical glass surface quality visual detection system and method | |
| JP2002082060A (en) | Surface defect inspecting method and device | |
| CN211768656U (en) | Transmission system for visual detection of surface quality of cylindrical workpiece | |
| KR100596048B1 (en) | System for inspecting edge of glass substrate | |
| KR101111065B1 (en) | Apparatus for inspecting substrate | |
| CN113702396A (en) | Visual inspection equipment for LCD screen backlight assembly | |
| CN112782184A (en) | Part detection device based on machine vision | |
| CN209927749U (en) | Online double-track full-automatic optical detector | |
| CN219201398U (en) | Battery defect detection device | |
| CN218610479U (en) | Automatic AOI detects machine | |
| CN216978865U (en) | Online electronic component optical detection equipment of PCBA | |
| CN214201149U (en) | Gantry dual-drive AOI detection equipment | |
| CN112461854B (en) | Intelligent optimization cover plate final inspection AOI detection method and device | |
| CN116571471A (en) | Poor detection device of full laminating of screen | |
| CN214894928U (en) | Circuit board detection device | |
| CN112246671B (en) | Detection device for tooth piece part | |
| CN209961788U (en) | Bare board guide rail of automatic optical detection device | |
| CN211785189U (en) | Device for automatically detecting defects and stopping machine | |
| CN116078704A (en) | Appearance detection equipment based on CCD | |
| CN217954279U (en) | Two-sided high-speed AOI detects machine | |
| CN109078863B (en) | Optical detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |