CN110567988A - Method and device for visually detecting quality of circuit board - Google Patents
Method and device for visually detecting quality of circuit board Download PDFInfo
- Publication number
- CN110567988A CN110567988A CN201910984732.1A CN201910984732A CN110567988A CN 110567988 A CN110567988 A CN 110567988A CN 201910984732 A CN201910984732 A CN 201910984732A CN 110567988 A CN110567988 A CN 110567988A
- Authority
- CN
- China
- Prior art keywords
- group
- camera
- button
- circuit board
- circuit
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims description 17
- 238000013500 data storage Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000011179 visual inspection Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 1
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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
- G01N2021/95615—Inspecting patterns on the surface of objects using a comparative method with stored comparision signal
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
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)
- Tests Of Electronic Circuits (AREA)
Abstract
the invention discloses a method and a device for visually detecting the quality of a circuit board, which comprises a base, a testing seat and a camera carriage, wherein the testing seat and the camera carriage are arranged above the base; a test hood is arranged on the base and covers the test seat and the camera carriage; the test seat is provided with a plurality of circuit board slots to be tested, and after the circuit board to be tested is placed in the test seat, the button group on the circuit board to be tested corresponds to the simulation button group on the test seat; arranging a camera above the circuit board to be tested, wherein the camera slides on a camera sliding frame to adjust the height; the data displayed by the camera shooting display is compared with the standard value, and when different buttons of the analog button group are pressed, the contents displayed on the display are different. The invention has the beneficial effects that: the camera shoots display images of a plurality of circuit boards detected each time, the display images are compared with standard images, the circuit boards with faults are marked, and the circuit boards are checked after being stored in codes and to be overhauled. The qualified products and the fault products in the detection process of the invention are provided with the prompt sound equipment, so the detection efficiency of the invention is high and the accuracy is high.
Description
Technical Field
The invention relates to the technical field of circuit board detection, in particular to a device for visually detecting the quality of a circuit board.
Background
along with the improvement of science and technology and the improvement of living standard of people, people have more and more great demand on hairdressing tools, and the performance index of the tools is more and more high-grade. It is very common to provide a display on a hair tool, and there are many methods for detecting the quality of the display itself and the correctness of the display data, but these methods are single detection and are inefficient.
Later, a plurality of circuit boards and displays are detected simultaneously, but the method still depends on manual visual inspection, and errors are inevitable.
to achieve automatic error-free detection, new designs are required.
Disclosure of Invention
the invention aims to provide a method and a device for visually detecting the quality of a circuit board, which improve the efficiency and reduce errors.
in order to achieve the purpose, the invention adopts the following technical scheme:
A method for visually inspecting the quality of a circuit board is implemented, comprising:
Firstly, arranging a base, and arranging a test seat and a camera carriage above the base; a test hood is arranged on the base and covers the test seat and the camera carriage; the test seat is provided with a plurality of circuit board slots to be tested, and after the circuit board to be tested is placed in the test seat, the button group on the circuit board to be tested corresponds to the simulation button group on the test seat;
Secondly, arranging a pressing plate to press the circuit board to be tested, wherein a through hole of the pressing plate is exposed out of a display of the circuit board to be tested, arranging a camera above the pressing plate, and adjusting the height of the camera in a sliding manner on a camera sliding frame; comparing the data displayed by the camera shooting display with a standard value, and when different buttons of the analog button group are pressed, displaying different contents on the display;
Thirdly, arranging a main circuit board in the base or the test seat, arranging a main control single-chip microcomputer U1 on the main circuit board, the master control single-chip microcomputer U1 is connected with a master control button circuit, a camera control circuit, a camera lifting drive circuit, an analog load system, an A group button drive circuit, a B group button drive circuit, a C group button drive circuit, an analog load sampling circuit, a sound circuit and a fault data storage circuit, a main control program module, a camera lifting control program module, an analog load control program module, an A group button driving program module, a B group button driving program module, a C group button driving program module, an analog load sampling program module, a fault data storage program module and a sound prompting program module are loaded in a main program memory of a main control single-chip microcomputer U1, and instructions of the program modules are suitable for being loaded and executed by a main control processor;
fourthly, pushing the cover plate to rise, then embedding the circuit board to be tested into the groove of the circuit board to be tested, and then pulling the cover plate to fall down to press the circuit board to be tested; at the moment, a test input contact embedded in a to-be-tested circuit board in place is in contact with a contact in a test seat, a start button is pressed, the whole device is powered on, a display displays welcome characters according to a main control program module, a camera takes a display image, if the image is fuzzy, the camera control program module sends request adjustment information to a main control single-chip microcomputer U, the main control single-chip microcomputer U starts a camera lifting control program module to adjust the height of the camera, and when the image is clear, the camera sends end adjustment information;
fifthly, sequentially starting the group A button driving circuit, the group B button driving circuit and the group C button driving circuit, sequentially calling the group A button driving program module, the group B button driving program module, the group C button driving program module and the simulation load control program module by the main control single-chip microcomputer U1 to control the simulation load system to provide different simulation loads, and inputting simulation signals to a P port of the main control single-chip microcomputer U1 by the main control single-chip microcomputer U1 through the simulation load sampling circuit and the simulation load sampling program module to perform A/D conversion and then display the simulation signals on a display;
Sixthly, when the buttons of the group A, the group B and the group C are respectively pressed by the camera, images displayed by the display are shot and recorded and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the fault occurs, the U1 starts a sound prompting program module and a sound circuit, a fault sound is sent out, and the code of the fault circuit board is stored in a fault data storage circuit through a fault data storage program module; if no fault exists, a sound box with normal detection is sent out;
if the test of the circuit board is finished, the finishing button is pressed.
The test input contact comprises a power input contact, a serial port output contact and an analog sampling input contact.
The analog button group is pressed by the group A button driving circuit, the group B button driving circuit and the group C button driving circuit which respectively control the pneumatic element to press the group A button, the group B button and the group C button.
The code of the fault circuit board is a product sequence code printed on one position of the circuit board to be tested.
the camera is clamped on the slide rail through the camera support and the slide block, and then the motor drives the screw rod to enable the slide block to slide up and down on the slide rail.
The device for visually detecting the quality of the circuit board is manufactured according to the method and comprises a base, wherein a test seat and a camera sliding frame are arranged above the base; a test hood is arranged on the base and covers the test seat and the camera carriage; the test seat is provided with a plurality of circuit board slots to be tested, and after the circuit board to be tested is placed in the test seat, the button group on the circuit board to be tested corresponds to the simulation button group on the test seat;
a press plate is pressed on the circuit board to be tested, a through hole of the press plate is exposed out of a display of the circuit board to be tested, a camera is arranged above the press plate, and the camera slides on a camera sliding frame to adjust the height; comparing the data displayed by the camera shooting display with a standard value, and when different buttons of the analog button group are pressed, displaying different contents on the display;
A main circuit board is arranged in a base or a test seat, a main control single-chip microcomputer U1 is arranged on the main circuit board, and a main control single-chip microcomputer U1 is connected with a main control button circuit, a camera control circuit, a camera lifting drive circuit, an analog load system, an A group of button drive circuits, a B group of button drive circuits, a C group of button drive circuits, an analog load sampling circuit, a sound circuit and a fault data storage circuit.
The main control single-chip microcomputer U1 respectively starts the A group of button driving circuits, the B group of button driving circuits and the C group of button driving circuits, the main control single-chip microcomputer U1 controls the analog load system to provide different analog loads, the main control single-chip microcomputer U1 inputs analog signals to a P port of the main control single-chip microcomputer U1 through the analog load sampling circuit to perform A/D conversion, and then the analog signals are displayed on a display;
when the buttons of the group A, the group B and the group C are respectively pressed by the camera, images displayed by the display are shot and recorded and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the fault occurs, the U1 starts the sound circuit, the fault sound is sent out, and the code of the fault circuit board is stored in the fault data storage circuit; if no fault exists, a sound for detecting normal is sent out.
The circuit board to be tested is provided with a test input contact, and the test input contact comprises a power input contact, a serial port output contact and an analog sampling input contact.
the analog button group is pressed by the group A button driving circuit, the group B button driving circuit and the group C button driving circuit which respectively control the pneumatic element to press the group A button, the group B button and the group C button.
The camera is clamped on the slide rail through the camera support and the slide block, and then the motor drives the screw rod to enable the slide block to slide up and down on the slide rail.
the invention has the beneficial effects that: and arranging a camera, shooting display images of a plurality of circuit boards detected each time, comparing the display images with standard images, marking the circuit board with a fault, and checking when the circuit board is to be overhauled after the circuit board codes are stored. The qualified products and the fault products in the detection process of the invention are provided with the prompt sound equipment, so the detection efficiency of the invention is high and the accuracy is high.
Drawings
FIG. 1 is a perspective view of a body involved in a method and apparatus for visually inspecting the quality of a circuit board according to the present invention;
FIG. 2 is a schematic diagram of the components shown raised by the test hood according to the method and apparatus for visually inspecting the quality of a circuit board of the present invention;
FIG. 3 is a schematic diagram of a circuit board slot to be tested in which a circuit board is placed according to a method and apparatus for visually inspecting the quality of the circuit board of the present invention;
FIG. 4 is a schematic diagram of a circuit board under test according to the method and apparatus for visually inspecting the quality of the circuit board of the present invention;
FIG. 5 is a schematic diagram of a main circuit involved in a method and apparatus for visually inspecting the quality of a circuit board according to the present invention;
Fig. 6 is a schematic diagram of program modules involved in a method and apparatus for visually inspecting the quality of a circuit board according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 6, a method of visually inspecting the quality of a circuit board is implemented, the method comprising: firstly, arranging a base 1, and arranging a test seat 6 and a camera carriage 72 above the base 1; a test hood 2 which is dropped on the base 1 and covers the test socket 6 and the camera carriage 72; the test seat 6 is provided with a plurality of circuit board slots 67 to be tested, and after the circuit board 9 to be tested is placed in the slots, the button group on the test seat corresponds to the simulation button group on the test seat 6;
Secondly, arranging a pressing plate 65 to press the circuit board 9 to be tested, wherein a display 94 of the circuit board 9 to be tested is exposed through a through hole of the pressing plate 65, arranging a camera 7 above the pressing plate 65, and adjusting the height of the camera 7 on the camera carriage 72 in a sliding way; the data displayed by the camera 7 shooting display 94 is compared with the standard value, and when different buttons of the analog button group are pressed, the contents displayed on the display 94 are different;
thirdly, a main circuit board is arranged in the base 1 or the test socket 6, a main control single-chip microcomputer U1 is arranged on the main circuit board, the main control single-chip microcomputer U1 is connected with a main control button circuit 111, a camera control circuit 112, a camera lifting drive circuit 113, an analog load system 114, a group A button drive circuit 116, a group B button drive circuit 117, a group C button drive circuit 118, an analog load sampling circuit 121, an audio circuit 123 and a fault data storage circuit 122, and a main control program module 811, a camera control program module 812, a camera lifting control program module 813, an analog load control program module 814, a group A button drive program module 816, a group B button drive program module 817, a group C button drive program module 818, an analog load sampling program module 821, a fault data storage program module 822 and a sound prompt program module 823 are loaded in a main program memory 81 of the main control single-chip microcomputer U1, the instructions of the various program modules described above are adapted to be loaded and executed by the main control processor 82;
Fourthly, pushing the cover plate 3 to rise, embedding the circuit board 9 to be tested into the circuit board groove 67 to be tested, and pulling the cover plate 3 to fall down to press the circuit board 9 to be tested; at this time, the test input contact 96 embedded in the in-place circuit board to be tested 9 is already contacted with the contact in the test socket 6, the start button 4 is pressed, the whole device is powered on, the display 94 displays welcome characters according to the main control program module 811, the camera 7 takes in images of the display, if the images are fuzzy, the camera control program module 812 sends request adjustment information to the main control single-chip microcomputer U1, the main control single-chip microcomputer U1 starts the camera lifting control program module 813 to adjust the height of the camera, and when the images are clear, the camera 7 sends end adjustment information;
Fifthly, then, the group A button driving circuit 116, the group B button driving circuit 117 and the group C button driving circuit 118 are sequentially started, the main control single-chip microcomputer U1 sequentially calls the group A button driving program module 816, the group B button driving program module 817, the group C button driving program module 818 and the analog load control program module 814 to control the analog load system 114 to provide different analog loads, and the main control single-chip microcomputer U1 inputs analog signals to a P1 port of the main control single-chip microcomputer U1 through the analog load sampling circuit 121 and the analog load sampling program module 821 to perform A/D conversion and then display the analog signals on the display 94;
Sixthly, when the buttons of the group A, the group B and the group C are respectively pressed by the camera 7, the image displayed by the display 94 is shot and recorded and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the fault occurs, the U1 starts the sound prompt program module 823 and the sound circuit 123 to send out a fault sound, and the code of the fault circuit board is stored in the fault data storage circuit 122 through the fault data storage program module 822; if no fault exists, a sound box with normal detection is sent out;
if the test of the circuit board is finished, the end button 5 is pressed.
The test input contact 96 includes a power input contact, a serial port 1 output contact, and an analog sampling input contact.
The group A, the group B and the group C button driving circuits 116, 117 and 118 respectively control the pneumatic elements to press the group A, the group B and the group C buttons 91, 92 and 93 when the analog button group is pressed.
The code for the faulty board is a product sequence code 95 printed on a location on the board 9 to be tested.
The height of the camera 7 is adjusted by sliding on the camera carriage 72, the camera 7 is clamped on the slide rail 73 through the camera bracket 75 and the slider 74, and then the motor 71 drives the screw rod to make the slider 74 slide up and down on the slide rail 73.
The device for visually detecting the quality of the circuit board comprises a base 1, wherein a test seat 6 and a camera carriage 72 are arranged above the base 1; a test hood 2 which is dropped on the base 1 and covers the test socket 6 and the camera carriage 72; the test seat 6 is provided with a plurality of circuit board slots 67 to be tested, and after the circuit board 9 to be tested is placed in the slots, the button group on the test seat corresponds to the simulation button group on the test seat 6;
a press plate 65 is pressed on the circuit board 9 to be tested, a display 94 of the circuit board 9 to be tested is exposed through a through hole of the press plate 65, a camera 7 is arranged above the press plate 65, and the camera 7 slides on the camera carriage 72 to adjust the height; the data displayed by the camera 7 shooting display 94 is compared with the standard value, and when different buttons of the analog button group are pressed, the contents displayed on the display 94 are different;
A main circuit board is arranged in the base 1 or the test socket 6, a main control single-chip microcomputer U1 is arranged on the main circuit board, and the main control single-chip microcomputer U1 is connected with a main control button circuit 111, a camera control circuit 112, a camera lifting drive circuit 113, an analog load system 114, a group A button drive circuit 116, a group B button drive circuit 117, a group C button drive circuit 118, an analog load sampling circuit 121, an audio circuit 123 and a fault data storage circuit 122.
The master single-chip microcomputer U1 respectively starts the A group button driving circuit 116, the B group button driving circuit 117 and the C group button driving circuit 118, the master single-chip microcomputer U1 controls the analog load system 114 to provide different analog loads, and the master single-chip microcomputer U1 inputs analog signals to a P1 port of the master single-chip microcomputer U1 through the analog load sampling circuit 121 to perform A/D conversion and then display the analog signals on the display 94;
When the buttons of the group A, the group B and the group C are respectively pressed by the camera 7, the image displayed by the display 94 is shot and recorded and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the fault occurs, the U1 starts the sound circuit 123 to send out a fault sound, and the code of the fault circuit board is stored in the fault data storage circuit 122; if no fault exists, a sound for detecting normal is sent out.
The circuit board to be tested 9 is provided with a test input contact 96, and the test input contact 96 comprises a power input contact, a serial port 1 output contact and an analog sampling input contact.
The group of analog buttons is pressed by a group A button driving circuit 116, a group B button driving circuit 117 and a group C button driving circuit 118, which respectively control the pneumatic elements to press the group A button 91, the group B button 92 and the group C button 93.
the height of the camera 7 is adjusted by sliding on the camera carriage 72, the camera 7 is clamped on the slide rail 73 through the camera bracket 75 and the slider 74, and then the motor 71 drives the screw rod to make the slider 74 slide up and down on the slide rail 73.
in fig. 2, a cover plate hole 31 is left on the front surface of the test cover 2, and people put in the circuit board and take out the circuit board through the hole.
in the preferred embodiment shown, four sets of buttons are provided, as shown in fig. 3, i.e., four boards can be tested simultaneously. Each set of buttons includes a group A of buttons, a group B of buttons, and a group C of buttons. The first set comprises a first group a button (611), a first group B button (612), a first group C button (613); the second set comprises a second group A button (621), a second group B button (622), a second group C button (623); the third set comprises a third A group of buttons (631), a third B group of buttons (632), and a third C group of buttons (633); the fourth set includes a fourth group A button (641), a fourth group B button (642), and a fourth group C button (643).
the pressing plate 65 is provided with a first through hole (651), a second through hole (652), a third through hole (653) and a fourth through hole (654).
As shown in fig. 4, the circuit board code is a product sequence code 95 printed on a location of the circuit board 9 to be tested. The camera captures the encoded image and converts it to digital data, which is sent to U1.
as shown in fig. 5, each circuit is a circuit that is common in the prior art, and details cannot be drawn here.
the above description is only a preferred embodiment of the present invention, and the present invention should not be limited by the above description, which should be interpreted as limiting the scope of the present invention, since the person skilled in the art can change the invention in the details of the embodiment and the range of applications according to the spirit of the present invention.
Claims (10)
1. A method for visually inspecting the quality of a circuit board, the method comprising:
Firstly, arranging a base (1), and arranging a test seat (6) and a camera carriage (72) above the base (1); a test hood (2) which rests on the base (1) and covers the test seat (6) and the camera carriage (72); the test seat (6) is provided with a plurality of circuit board slots (67) to be tested, and when the circuit board (9) to be tested is placed in, the button group on the test seat corresponds to the simulation button group on the test seat (6);
secondly, arranging a pressing plate (65) to press on the circuit board to be tested (9), wherein a through hole of the pressing plate is exposed out of a display (94) of the circuit board to be tested (9), arranging a camera (7) above the pressing plate (65), and adjusting the height of the camera (7) in a sliding manner on a camera sliding frame (72); the data displayed by the video recording display (94) of the camera (7) is compared with the standard value, and when different buttons of the analog button group are pressed, the contents displayed on the display (94) are different;
Thirdly, arranging a main circuit board in the base (1) or the test seat (6), arranging a main control single-chip microcomputer U1 on the main circuit board, connecting the main control single-chip microcomputer U1 with a main control button circuit (111), a camera control circuit (112), a camera lifting drive circuit (113), a simulated load system (114), an A group button drive circuit (116), a B group button drive circuit (117), a C group button drive circuit (118), a simulated load sampling circuit (121), an audio circuit (123) and a fault data storage circuit (122), and loading a main control program module (811), a camera control program module (812), a camera lifting control program module (813), a simulated load control program module (814), an A group button drive program module (816), a B group button drive program module (817) and a fault data storage circuit in a main program memory (81) of the main control single-chip microcomputer U1, A C group button driver module (818), an analog load sampling program module (821), a fault data storage program module (822) and an audio prompt program module (823), wherein the instructions of the program modules are suitable for being loaded and executed by the main control processor (82);
Fourthly, pushing the cover plate (3) to rise, then embedding the circuit board (9) to be tested into the circuit board groove (67) to be tested, and then pulling the cover plate (3) to fall down to press the circuit board (9) to be tested; at the moment, a test input contact (96) embedded in a to-be-tested circuit board (9) in place is in contact with a contact in a test seat (6), a starting button (4) is pressed, the whole device is powered on, a display (94) displays welcome characters according to a main control program module (811), a camera (7) shoots a display image, if the image is fuzzy, a camera control program module (812) sends request adjustment information to a main control single-chip microcomputer U1, the main control single-chip microcomputer U1 starts a camera lifting control program module (813) to adjust the height of the camera, and when the image is clear, the camera (7) sends finishing adjustment information;
fifthly, sequentially starting the A group button driving circuit (116), the B group button driving circuit (117) and the C group button driving circuit (118), sequentially calling the A group button driving program module (816), the B group button driving program module (817), the C group button driving program module (818) and the analog load control program module (814) by the main control single-chip microcomputer U1, controlling the analog load system (114) to provide different analog loads, inputting an analog signal into a P1 port of the main control single-chip microcomputer U1 by the main control single-chip microcomputer U1 through the analog load sampling circuit (121) and the analog load sampling program module (821), performing A/D conversion, and displaying the analog signal on the display (94);
sixthly, when the buttons of the group A, the group B and the group C are respectively pressed down by the camera (7), images displayed by the display (94) are shot and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the button is in fault, the U1 starts a sound prompting program module (823) and a sound circuit (123) to send out fault sound, and the codes of the fault circuit board are stored in the fault data storage circuit (122) through a fault data storage program module (822); if no fault exists, a sound box with normal detection is sent out;
If the test of the circuit board is finished, an end button (5) is pressed.
2. The method of claim 1, wherein the test input contacts (96) comprise power input contacts, serial 1 output contacts, analog sample input contacts.
3. the method for visually inspecting circuit board quality according to claim 1, wherein the analog button group is pressed by a group A button driving circuit (116), a group B button driving circuit (117) and a group C button driving circuit (118) which respectively control pneumatic elements to press a group A button (91), a group B button (92) and a group C button (93).
4. a method for visual inspection of circuit board quality as claimed in claim 1 wherein the code for the faulty circuit board is a product sequence code (95) printed on a location on the circuit board (9) to be tested.
5. The method for visually inspecting the quality of the circuit board according to claim 1, wherein the camera (7) is slid on the camera carriage (72) to adjust the height, the camera (7) is clamped on the slide rail (73) through the camera bracket (75) and the slide block (74), and then the motor (71) drives the screw rod to make the slide block (74) slide up and down on the slide rail (73).
6. A device for visually detecting the quality of a circuit board is characterized by comprising a base (1), wherein a test seat (6) and a camera carriage (72) are arranged above the base (1); a test hood (2) which rests on the base (1) and covers the test seat (6) and the camera carriage (72); the test seat (6) is provided with a plurality of circuit board slots (67) to be tested, and when the circuit board (9) to be tested is placed in, the button group on the test seat corresponds to the simulation button group on the test seat (6);
A press plate (65) is pressed on the circuit board (9) to be tested, a through hole of the press plate is exposed out of a display (94) of the circuit board (9) to be tested, a camera (7) is arranged above the press plate (65), and the camera (7) slides on a camera carriage (72) to adjust the height; the data displayed by the video recording display (94) of the camera (7) is compared with the standard value, and when different buttons of the analog button group are pressed, the contents displayed on the display (94) are different;
A main circuit board is arranged in a base (1) or a test seat (6), a main control single-chip microcomputer U1 is arranged on the main circuit board, and the main control single-chip microcomputer U1 is connected with a main control button circuit (111), a camera control circuit (112), a camera lifting drive circuit (113), an analog load system (114), an A group button drive circuit (116), a B group button drive circuit (117), a C group button drive circuit (118), an analog load sampling circuit (121), an audio circuit (123) and a fault data storage circuit (122).
7. The apparatus for visually inspecting circuit board quality according to claim 6, wherein the master single-chip microcomputer U1 respectively activates the A group button driving circuit (116), the B group button driving circuit (117), and the C group button driving circuit (118), the master single-chip microcomputer U1 controls the analog load system (114) to provide different analog loads, the master single-chip microcomputer U1 inputs the analog signals to the P1 port of the master single-chip microcomputer U1 through the analog microcomputer load sampling circuit (121), performs A/D conversion, and then displays the analog signals on the display (94);
when the buttons of the group A, the group B and the group C are respectively pressed down by the camera (7), images displayed by the display (94) are shot and recorded and identified, the identification result is transmitted to the main control single-chip microcomputer U1, if the fault occurs, the U1 starts the sound circuit (123), the fault sound is emitted, and the code of the fault circuit board is stored in the fault data storage circuit (122); if no fault exists, a sound for detecting normal is sent out.
8. the apparatus for visually inspecting circuit board quality according to claim 6, wherein the circuit board (9) to be inspected is provided with test input contacts (96), and the test input contacts (96) comprise power input contacts, serial port 1 output contacts and analog sampling input contacts.
9. The apparatus for visually inspecting circuit board quality according to claim 6, wherein the analog button set is pressed by a group A button driving circuit (116), a group B button driving circuit (117), and a group C button driving circuit (118) for respectively controlling pneumatic elements to press a group A button (91), a group B button (92), and a group C button (93).
10. the apparatus for visually inspecting circuit board quality according to claim 6, wherein the camera (7) is slid on the camera carriage (72) to adjust the height, the camera (7) is clamped on the slide rail (73) through the camera bracket (75) and the slide block (74), and then the motor (71) drives the screw rod to make the slide block (74) slide up and down on the slide rail (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984732.1A CN110567988A (en) | 2019-10-16 | 2019-10-16 | Method and device for visually detecting quality of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984732.1A CN110567988A (en) | 2019-10-16 | 2019-10-16 | Method and device for visually detecting quality of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110567988A true CN110567988A (en) | 2019-12-13 |
Family
ID=68785248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910984732.1A Pending CN110567988A (en) | 2019-10-16 | 2019-10-16 | Method and device for visually detecting quality of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110567988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273121A (en) * | 2020-03-07 | 2020-06-12 | 东莞市和康轩电子科技有限公司 | Touch function product detection device and detection method |
| CN113670949A (en) * | 2021-08-27 | 2021-11-19 | 惠州市特创电子科技股份有限公司 | Subarea inspection method of large circuit board stepping inspection machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9304354D0 (en) * | 1992-03-04 | 1993-04-21 | Tani Denki Kogyo Kk | Visual inspection support system for printed-circuit board |
| CN201145788Y (en) * | 2006-10-24 | 2008-11-05 | 曹陵 | LCD/LCM automatic optical detector |
| CN202049477U (en) * | 2011-01-17 | 2011-11-23 | 精英电脑股份有限公司 | Test device |
| CN103176348A (en) * | 2011-12-22 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Lens electric property testing system and testing method thereof |
| CN104360501A (en) * | 2014-10-15 | 2015-02-18 | 西安交通大学 | Visual detection method and device for defects of liquid crystal display screen |
| CN205049696U (en) * | 2015-09-23 | 2016-02-24 | 深圳市星火辉煌系统工程有限公司 | Miniature display chip's production detecting system |
| CN206848426U (en) * | 2017-06-22 | 2018-01-05 | 深圳市卓瑞源科技有限公司 | A kind of all-in-one PCBA calibrated testers |
| CN207396673U (en) * | 2017-09-05 | 2018-05-22 | 东莞市科纯电子有限公司 | A kind of electric hot plate universal detection device |
| CN108562843A (en) * | 2018-04-19 | 2018-09-21 | 东北大学 | A kind of alternating current generator E3 controller circuit boards detecting system and method |
| CN209400668U (en) * | 2018-12-27 | 2019-09-17 | 深圳市燕麦科技股份有限公司 | A kind of docking test device of flexible circuit board |
| CN210982263U (en) * | 2019-10-16 | 2020-07-10 | 东莞市科纯电子有限公司 | Device for visually detecting quality of circuit board |
-
2019
- 2019-10-16 CN CN201910984732.1A patent/CN110567988A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9304354D0 (en) * | 1992-03-04 | 1993-04-21 | Tani Denki Kogyo Kk | Visual inspection support system for printed-circuit board |
| CN201145788Y (en) * | 2006-10-24 | 2008-11-05 | 曹陵 | LCD/LCM automatic optical detector |
| CN202049477U (en) * | 2011-01-17 | 2011-11-23 | 精英电脑股份有限公司 | Test device |
| CN103176348A (en) * | 2011-12-22 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Lens electric property testing system and testing method thereof |
| CN104360501A (en) * | 2014-10-15 | 2015-02-18 | 西安交通大学 | Visual detection method and device for defects of liquid crystal display screen |
| CN205049696U (en) * | 2015-09-23 | 2016-02-24 | 深圳市星火辉煌系统工程有限公司 | Miniature display chip's production detecting system |
| CN206848426U (en) * | 2017-06-22 | 2018-01-05 | 深圳市卓瑞源科技有限公司 | A kind of all-in-one PCBA calibrated testers |
| CN207396673U (en) * | 2017-09-05 | 2018-05-22 | 东莞市科纯电子有限公司 | A kind of electric hot plate universal detection device |
| CN108562843A (en) * | 2018-04-19 | 2018-09-21 | 东北大学 | A kind of alternating current generator E3 controller circuit boards detecting system and method |
| CN209400668U (en) * | 2018-12-27 | 2019-09-17 | 深圳市燕麦科技股份有限公司 | A kind of docking test device of flexible circuit board |
| CN210982263U (en) * | 2019-10-16 | 2020-07-10 | 东莞市科纯电子有限公司 | Device for visually detecting quality of circuit board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273121A (en) * | 2020-03-07 | 2020-06-12 | 东莞市和康轩电子科技有限公司 | Touch function product detection device and detection method |
| CN113670949A (en) * | 2021-08-27 | 2021-11-19 | 惠州市特创电子科技股份有限公司 | Subarea inspection method of large circuit board stepping inspection machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7388977B2 (en) | Test system and method for portable electronic apparatus | |
| CN101334448B (en) | Test platform and method for testing PC board | |
| CN110567988A (en) | Method and device for visually detecting quality of circuit board | |
| CN202994935U (en) | Testing device for connector product | |
| CN101526570A (en) | Method for automatically testing machine platform | |
| CN112161558B (en) | Automatic detection system for probe stroke | |
| CN210982263U (en) | Device for visually detecting quality of circuit board | |
| CN204517822U (en) | A kind of result with WIFI can be reviewed bluetooth and automatically be detected frock | |
| CN103269473A (en) | Automatic audio test system | |
| CN202050507U (en) | Video display testing system | |
| CN217132536U (en) | Notebook plug test machine | |
| CN110954857A (en) | Intelligent detection equipment | |
| TW201350889A (en) | Relay automatic assembly and testing machine | |
| CN209737006U (en) | Automatic assembly and detection production line for automobile instrument | |
| CN203251430U (en) | Audio automatic test system | |
| CN215449509U (en) | Durable detecting system of car steering wheel touch switch | |
| CN109348644A (en) | A kind of fixture system and its leakproof mistake proofing detection method | |
| CN113405583A (en) | Automatic test equipment for aviation board position sensor and control method | |
| CN204514586U (en) | A kind of glove box open detection frock | |
| CN210090329U (en) | Base table detection device | |
| CN207923958U (en) | A kind of circuit board detecting tooling | |
| CN212321469U (en) | Circuit board detection device | |
| CN220420250U (en) | Module detects tool | |
| CN211653134U (en) | Automatic calibration system of distance measuring sensor | |
| CN214098216U (en) | Novel automatic detection equipment for automobile control knob |
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 |