CN105842253A - Automatic PCB optical detection method - Google Patents
Automatic PCB optical detection method Download PDFInfo
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- CN105842253A CN105842253A CN201610156796.9A CN201610156796A CN105842253A CN 105842253 A CN105842253 A CN 105842253A CN 201610156796 A CN201610156796 A CN 201610156796A CN 105842253 A CN105842253 A CN 105842253A
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- etched plate
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- scanning area
- etching
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- 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
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- 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)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- ing And Chemical Polishing (AREA)
Abstract
An automatic PCB optical detection method comprises the steps: an output end of a development, etching and film removal production line is arranged on an online optical inspection device; an etching plate is transmitted to scanning areas of digital cameras by a transmission mechanism, and the digital cameras are arranged above and below the etching plate; when the etching plate is transmitted in the scanning areas of the digital cameras, the digital cameras above and below the etching plate simultaneously shoot an upper plate face and a lower plate face of the etching plate, shot images are compared and identified in a grayscale mode and original data, abnormal points are found out, and recording is carried out with each etching plate as a unit; a code spraying device is arranged at the rear of the scanning areas of the digital cameras, when the etching plate is transmitted to the code spraying device, a code is sprayed on the plate edge of the etching plate by the code spraying device, at the same time, an operation host treats the scanning information of the etching plate. The integrated detection is achieved, positioning of defects is accurate, feedback is in time, the production time is shortened, the phenomenon of oxidation false points is avoided, the working efficiency is improved, and the finished product quality is improved.
Description
Technical field
The present invention relates to the optical detection of pcb board, particularly a kind of automatization pcb board optical detecting method.
Background technology
Pcb board, also known as printed circuit board (PCB), printed substrate, is called for short printed board, with insulation board as base material,
Be cut into certain size, at least with a conductive pattern on it, and cloth porose (as component hole, fastener hole,
Plated through-hole etc.), and realize being connected with each other between electronic devices and components.Owing to this plate is to use electronic printing
Art makes, therefore is referred to as " printing " circuit board.This circuit board needs in process of production to circuit board
It is optically inspected, to guarantee defective products control.
At present, conventional optical check pattern is separate type optical check board, this repair process be followed successively by DES,
Receive plate, transhipment, off-line optical check, transhipment and VRS maintenance (such as Fig. 1), the etching after the method etching
Plate need to be transported to optical detection board (AOI), is then scanned etched plate, then goes to overhaul board.
Needed for this operating type, cost of labor is high, and efficiency is low, and easily cause in transport process plate face wipe flower,
The quality defects such as the false point of oxidation；It addition, after there is location in production process, feedback not in time, easily causes and criticizes
Amount is scrapped or repairs, and causes and produces and the increase of human cost.
Summary of the invention
The technical problem to be solved is, overcomes the drawbacks described above that prior art exists, it is provided that a kind of
On-bne repair, automatization's pcb board optical detecting method of Real-time Feedback.
The technical solution adopted for the present invention to solve the technical problems is, the pcb board optical detection of a kind of automatization
Method, the outfan even moving back film production line (DES production line) in development etching is arranged on line optics inspection equipment,
Described online optical checking equipment includes connecting gear, digital camera, spray code spraying apparatus and operation main frame, transmits
Etched plate is sent to the scanning area of digital camera by mechanism, is equipped with digital camera above and below etched plate,
Etched plate is when the scanning area of digital camera transmits, and the digital camera above and below etched plate is simultaneously to etching
Upper face and the lower face of plate are taken pictures, and are contrasted with grayscale mode and original copy data by the photo taken
Identify, find out abnormity point, in units of every piece of etched plate, carry out record；The rear of digital camera scanning area sets
Having spray code spraying apparatus, when etched plate is sent to spray code spraying apparatus, spray code spraying apparatus sprays coding at the edges of boards of etched plate,
Meanwhile, the scanning information of etched plate is processed by operation main frame, and operation main frame is transferred the plate face of etched plate and lacked
Fall into information conveyance and just can recall the defect of etched plate to servicing machine, the coding inputting etched plate on servicing machine
Information.
Further, described etched plate is not more than 5.2m/min in the transfer rate of digital camera scanning area.
Further, described etched plate is not more than 5 ° in the plate angle of putting of digital camera scanning area.
Further, described etched plate is not more than 1cm in the transmission side-play amount of digital camera scanning area.
Further, the size of described etched plate within 27*27inch, the camera lens live width spacing of digital camera
Analytic ability is more than 2/2mil.
Compared with prior art, the method have the advantages that
(1), there is location defect, meeting Real-time Feedback in production process, gives a warning, temporarily in integration detection
Determine production line, Search and Orientation defect cause, it is to avoid location defect enters AOI workshop, it is to avoid etched plate is frequent
The wiping flower that carrying causes, is greatly improved the end product quality of product；
(2) use duplex scanning to decrease operation, shorten the production time, can lack all location of Real-time Feedback
Falling into real time record and report, use automated etching line line effectively to reduce oxidation and micronic dust, vacation is counted
Mesh reduces, and is effectively improved work efficiency；
(3) parameters optimization, improves Detection accuracy, the etched plate apparent of scanning, the figure of etched plate
Identify that accurately etched plate is not more than 5.2m/min in the transfer rate of digital camera scanning area, and etched plate is counting
The plate angle of putting of code-phase machine scanning area is not more than 5 °, etched plate digital camera scanning area transmission side-play amount not
More than 1cm.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of prior art；
Fig. 2 is the schematic flow sheet of one embodiment of the invention；
Fig. 3 is the structural representation of online optical checking equipment.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
Embodiment 1
The present embodiment is arranged on line optics inspection equipment at the outfan of DES production line, described in line optics inspection
The equipment of looking into includes connecting gear, digital camera, spray code spraying apparatus and operation main frame, and etched plate is passed by connecting gear
Delivering to the scanning area of digital camera, be equipped with digital camera above and below etched plate, etched plate is at number
When the scanning area of camera transmits, the digital camera above and below etched plate simultaneously to the upper face of etched plate and
Lower face is taken pictures, and with grayscale mode and original copy data, the photo taken is carried out contrast and identifies, find out different
Chang Dian, carries out record in units of every piece of etched plate；The rear of digital camera scanning area is provided with spray code spraying apparatus,
When etched plate is sent to spray code spraying apparatus, spray code spraying apparatus sprays coding at the edges of boards of etched plate, and meanwhile, operation is main
The scanning information of etched plate is processed by machine, and operation main frame transfers the surface defects information conveyance of etched plate extremely
Servicing machine, the coding inputting etched plate on servicing machine just can recall the defect information of etched plate, it is simple to behaviour
Verification maintenance is carried out as personnel.
In the present embodiment, described etched plate is 5.2m/min in the transfer rate of digital camera scanning area, it is ensured that
The etched plate apparent of scanning, and per minute can scan 8 pieces of etched plates, and identical speed separate type
AOI every average only 1.5 blocks of plates per minute, and every machine is required for 1 operative, work efficiency is big
Big raising, significantly reduces the load of operator.
In the present embodiment, described etched plate is 4 ° in the plate angle of putting of digital camera scanning area, and etched plate is counting
The transmission side-play amount of code-phase machine scanning area is 0.5cm, it is ensured that accurately identify etched plate figure.
In the present embodiment, the size of described etched plate within 27*27inch, the camera lens live width of digital camera
Spacing analytic ability is 2/2mil.
Integration detection, for the accurate positioning of defect, in time, the production time shortens feedback, it is to avoid oxygen
Changing vacation point phenomenon, work efficiency improves, and the end product quality of product improves.
Embodiment 2
The present embodiment differs only in embodiment 1, and etched plate is in the transfer rate of digital camera scanning area
For 4.8m/min, etched plate is 3 ° in the plate angle of putting of digital camera scanning area, and etched plate is at digital camera
The transmission side-play amount of scanning area is 0.2cm, and remaining is substantially the same manner as Example 1.
Integration detection, for the accurate positioning of defect, in time, the production time shortens feedback, it is to avoid oxygen
Changing vacation point phenomenon, work efficiency improves, and the end product quality of product improves.
Embodiment 3
The present embodiment differs only in embodiment 1, and etched plate is in the transfer rate of digital camera scanning area
For 3.2m/min, etched plate is 2 ° in the plate angle of putting of digital camera scanning area, and etched plate is at digital camera
The transmission side-play amount of scanning area is 0.8cm, and remaining is substantially the same manner as Example 1.
Integration detection, for the accurate positioning of defect, in time, the production time shortens feedback, it is to avoid oxygen
Changing vacation point phenomenon, work efficiency improves, and the end product quality of product improves.
Claims (5)
1. automatization's pcb board optical detecting method, it is characterised in that even move back film in development etching and produce
The outfan of line is arranged on line optics and checks equipment, and described online optical checking equipment includes connecting gear, number
Code-phase machine, spray code spraying apparatus and operation main frame, etched plate is sent to the scanning area of digital camera by connecting gear,
Being equipped with digital camera above and below etched plate, etched plate, when the scanning area of digital camera transmits, loses
Digital camera above and below mechanical upper face and lower face to etched plate simultaneously is taken pictures, and will clap
Photo with grayscale mode and original copy data carry out contrast identify, find out abnormity point, with every piece of etched plate as list
Position carries out record；The rear of digital camera scanning area is provided with spray code spraying apparatus, when etched plate is sent to spray code spraying apparatus,
Spray code spraying apparatus sprays coding at the edges of boards of etched plate, and meanwhile, the scanning information of etched plate is carried out by operation main frame
Processing, operation main frame transfers the surface defects information conveyance of etched plate to servicing machine, input erosion on servicing machine
Mechanical coding just can recall the defect information of etched plate.
Automatization the most according to claim 1 pcb board optical detecting method, it is characterised in that described
Etched plate is not more than 5.2m/min in the transfer rate of digital camera scanning area.
Automatization the most according to claim 1 and 2 pcb board optical detecting method, it is characterised in that
Described etched plate is not more than 5 ° in the plate angle of putting of digital camera scanning area.
Automatization the most according to claim 3 pcb board optical detecting method, it is characterised in that described
Etched plate is not more than 1cm in the transmission side-play amount of digital camera scanning area.
Automatization the most according to claim 3 pcb board optical detecting method, it is characterised in that described
The size of etched plate is within 27*27inch, and the camera lens live width spacing analytic ability of digital camera is more than
2/2mil。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156796.9A CN105842253B (en) | 2016-03-18 | 2016-03-18 | A kind of automation pcb board optical detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156796.9A CN105842253B (en) | 2016-03-18 | 2016-03-18 | A kind of automation pcb board optical detecting method |
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| CN105842253A true CN105842253A (en) | 2016-08-10 |
| CN105842253B CN105842253B (en) | 2019-07-23 |
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| CN201610156796.9A Active CN105842253B (en) | 2016-03-18 | 2016-03-18 | A kind of automation pcb board optical detecting method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290384A (en) * | 2016-10-21 | 2017-01-04 | 江苏理工学院 | Online detection and identification method for control circuit board of brushless direct current motor |
| CN106404782A (en) * | 2016-09-06 | 2017-02-15 | 凌云光技术集团有限责任公司 | PCB online detecting method |
| TWI633317B (en) * | 2017-04-20 | 2018-08-21 | 八目科技有限公司 | Line measuring device and method for automatic measuring circuit board |
| CN110186938A (en) * | 2019-06-28 | 2019-08-30 | 笪萨科技(上海)有限公司 | Two-sided defect analysis equipment and defects detection and analysis system |
| CN110715935A (en) * | 2019-11-11 | 2020-01-21 | 佛山市新石器机器人有限公司 | Ceramic tile defect detection equipment and method |
| CN112415973A (en) * | 2020-11-24 | 2021-02-26 | 广州广合科技股份有限公司 | Intelligent control method and system for inner layer AOI (automated optical inspection) process |
| CN113859899A (en) * | 2020-06-30 | 2021-12-31 | 北大方正集团有限公司 | Production system of printed circuit board |
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| WO2012093747A1 (en) * | 2011-01-06 | 2012-07-12 | 주식회사 에이앤아이 | Substrate inspection method and apparatus |
| CN202512067U (en) * | 2011-12-21 | 2012-10-31 | 北京兆维电子(集团)有限责任公司 | CTCP (Computer To Conventional Plate) surface detection system based on machine vision |
| CN103175840A (en) * | 2011-12-21 | 2013-06-26 | 北京兆维电子(集团)有限责任公司 | Offset plate surface detection method and system based on machine vision |
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| CN204116244U (en) * | 2014-04-10 | 2015-01-21 | 重庆华丰迪杰特印刷材料有限公司 | A kind of on-line measuring device for aluminum plate foundation galley |
| CN205015290U (en) * | 2015-05-12 | 2016-02-03 | 廖怀宝 | Two -sided detection device |
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| CN1789990A (en) * | 2005-12-01 | 2006-06-21 | 渤海船舶重工有限责任公司 | Automatic online detection method for defects on upper and lower surfaces during steel plate pretreatment process |
| WO2012093747A1 (en) * | 2011-01-06 | 2012-07-12 | 주식회사 에이앤아이 | Substrate inspection method and apparatus |
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| CN204116244U (en) * | 2014-04-10 | 2015-01-21 | 重庆华丰迪杰特印刷材料有限公司 | A kind of on-line measuring device for aluminum plate foundation galley |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404782A (en) * | 2016-09-06 | 2017-02-15 | 凌云光技术集团有限责任公司 | PCB online detecting method |
| CN106404782B (en) * | 2016-09-06 | 2019-02-22 | 凌云光技术集团有限责任公司 | A kind of PCB online test method |
| CN106290384A (en) * | 2016-10-21 | 2017-01-04 | 江苏理工学院 | Online detection and identification method for control circuit board of brushless direct current motor |
| CN106290384B (en) * | 2016-10-21 | 2018-11-23 | 江苏理工学院 | Online detection and identification method for control circuit board of brushless direct current motor |
| TWI633317B (en) * | 2017-04-20 | 2018-08-21 | 八目科技有限公司 | Line measuring device and method for automatic measuring circuit board |
| CN110186938A (en) * | 2019-06-28 | 2019-08-30 | 笪萨科技(上海)有限公司 | Two-sided defect analysis equipment and defects detection and analysis system |
| CN110715935A (en) * | 2019-11-11 | 2020-01-21 | 佛山市新石器机器人有限公司 | Ceramic tile defect detection equipment and method |
| CN113859899A (en) * | 2020-06-30 | 2021-12-31 | 北大方正集团有限公司 | Production system of printed circuit board |
| CN112415973A (en) * | 2020-11-24 | 2021-02-26 | 广州广合科技股份有限公司 | Intelligent control method and system for inner layer AOI (automated optical inspection) process |
| CN112415973B (en) * | 2020-11-24 | 2022-05-17 | 广州广合科技股份有限公司 | Intelligent control method and system for inner layer AOI (automated optical inspection) process |
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|---|---|
| CN105842253B (en) | 2019-07-23 |
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