CN102539441A - Inspection method for inspecting welding correctness of the device of device on circuit board in batch - Google Patents

Inspection method for inspecting welding correctness of the device of device on circuit board in batch Download PDF

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Publication number
CN102539441A
CN102539441A CN2011104512467A CN201110451246A CN102539441A CN 102539441 A CN102539441 A CN 102539441A CN 2011104512467 A CN2011104512467 A CN 2011104512467A CN 201110451246 A CN201110451246 A CN 201110451246A CN 102539441 A CN102539441 A CN 102539441A
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China
Prior art keywords
circuit board
inspection
picture
travelling belt
computer
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Pending
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CN2011104512467A
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Chinese (zh)
Inventor
顾营迎
贺庚贤
宁飞
沈湘衡
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Priority to CN2011104512467A priority Critical patent/CN102539441A/en
Publication of CN102539441A publication Critical patent/CN102539441A/en
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Abstract

The invention provides an inspection method for inspecting the welding correctness of a device on a circuit board in batch, and belongs to the inspection method for inspecting the welding correctness of the device on the circuit board in batch, related in the technical field of photoelectric detection. The inspection method aims at solving the technical problem to provide the inspection method for inspecting the welding correctness of the device on the circuit board in batch. In order to solve the problems, the inspection method adopts the technical scheme that an inspection base platform is built, a computer control system is constructed, an inspection template is built, circuit board to be inspected in batch are subjected to photo taking and image processing one by one, in addition, pre-judging results are given out, and the manual re-checking is carried out on the judged unqualified products. The photo taking and image processing technology is utilized in the method. Compared with the manual inspection, the method has the advantages that the inspection accuracy is high, the inspection efficiency is high, the fast inspection of the circuit board in batch can be realized, the work intensity of inspectors is reduced, the inspection efficiency is improved, and the product inspection period is shortened.

Description

The method of inspection of components and parts welding correctness on a kind of batch checking circuit plate
Technical field
The invention belongs to the method for inspection of components and parts welding correctness on the batch checking circuit plate that relates in the photoelectric detection technology field.
Background technology
The develop rapidly of Along with computer technology, large scale integrated circuit technology, nowadays electronic system, electronic equipment have been widely used in every field such as industry, agricultural, commerce, space flight, military affairs.In development electronic system and electronic equipment process, must test to the circuit board that has welded electronic devices and components; Whether confirm electronic devices and components according to the correct welding of designing requirement with check, contents such as comprising whether the electronic devices and components model of welding is correct, have or not the element that leaks weldering, the position of element welding is whether correct.Usually these works for inspection all are to contrast the desk checking completion by the reviewer one by one according to components and parts inventory and the circuit board schematic diagram that the designer provides.The method working strength of this desk checking is big, is easy to generate the omission problem that causes owing to personnel's fatigue, and incompatible with the mode of mass production processing circuit board, influences the development and production cycle of product.The characteristics of needing badly to this work position form the method for inspection that a cover adapts to the modernized circuit board element welding correctness of producing in batches.
Summary of the invention
The objective of the invention is to set up the method for inspection of components and parts welding correctness on a kind of batch checking circuit plate, to adapt to the demand of mass circuit board processing.
The technical matters that the present invention will solve is: the method for inspection that components and parts welding correctness on a kind of batch checking circuit plate is provided.The technical scheme of technical solution problem is as shown in Figure 1 to be comprised: build the check base station and make up computer control system 1; Set up check template 2; Batch circuit board to be checked is taken a picture 3 one by one, and Flame Image Process also provides the disconnected result 4 of anticipation, carries out manual review 5 for the unacceptable product of judging.The concrete grammar step is:
The first step, build check base station and make up computer control system 1; As shown in Figure 2 by linear array camera 8, illuminating lamp 9, driving motor 10, travelling belt 11; Drive bearing 12, pedestal 13, camera data line 14, computer-processing equipment 15, darkroom 16, umbilical cable 17 are formed; Travelling belt 11 above pedestal 13 supports, drive bearing 12 and darkroom 16; Drive bearing 12 is placed on the two ends and the centre position of travelling belt 11 respectively; Driving motor 10 is positioned at the middle part of pedestal 13 and connects with drive bearing 12 and drive travelling belt 11 through gear and moves; Darkroom 16 is placed on the middle part of pedestal 13; Travelling belt 11 in the darkroom 16 bottoms transmission move, linear array camera 8 is placed in 16 center upper portion position in the darkroom, the 16 inner illuminating lamps 9 of installing in the darkroom, both sides of linear array camera 8; Pedestal 13 support travelling belts 11; Drive bearing 12 provides support platform with darkroom 16 for the transmission of circuit board, photograph, and the linear array camera 8 on the pedestal 13 is connected with computer-processing equipment 15 through camera data line 14, and the umbilical cable 17 of driving motor 10 is connected with computer equipment 15; Under computer picture recognition check control of software, the movement velocity of 8 photograph times of linear array camera and travelling belt 11 is complementary, thereby obtains the circuit board scanning picture of clear unanimity through computer-processing equipment 15;
Second step, foundation check template 2; In the time will checking a collection of circuit board; At first desk checking goes out a qualified circuit board as template; Then that this piece desk checking is qualified circuit board template is put into travelling belt 11 enterprising line scannings and takes pictures; And, think that promptly it is exactly qualified circuit board that the picture feature of extracting according to image recognition software to be checked conforms to the characteristic that contrasts picture with the contrast picture of photo as other circuit board pictures of image recognition software test for identification;
The 3rd the step, batch circuit board to be checked is taken a picture 3 one by one; In order every circuit board to be checked is put on the travelling belt 11 of pedestal 13 one by one, and, obtains the picture of every circuit board through the circuit board that computer-processing equipment control linear array camera 8 gets into darkroom 16 to each piece surface sweeping of taking a picture;
The 4th step, Flame Image Process also provide anticipation result 4; Whether component number, model, the position of welding on the image recognition software inspection lot analysis on the appliance computer treatment facility, the checking circuit plate be correct, and provide assay, and image recognition check software flow pattern is as shown in Figure 3;
The 5th step, carry out manual review 5 for the unacceptable product of judging; To computing machine result of determination that provides and the doubtful problem points that provides, carry out the situation of manual review, and give the final test results judgement with problem identificatioin.
Principle of work explanation: utilize camera technique and image processing techniques; Can accomplish check through above five technical steps to the welding of the components and parts on the circuit board of producing in batches correctness; The core of this method of inspection is to utilize the method for scanography to set up the check template, and utilizes image recognition software that the unique point and the template characteristic point of every seized circuit board photo are compared, and judges whether both unique points are variant; Seized circuit board photo characteristic conforms to consistent with template photo characteristic; Be exactly qualified circuit board, with this judge, whether locating circuit board have problem, and the position that occurs of problem.
Good effect of the present invention: the invention solves the problem that the welding of components and parts on desk checking circuit board correctness efficient is low, be prone to omission; This method is utilized camera technique and image processing techniques; Checkability is high, reduced reviewer's labour intensity, also improved the precision of check simultaneously.
Description of drawings
Fig. 1 is the steps flow chart synoptic diagram of the inventive method;
Fig. 2 is the formation synoptic diagram of building the check base station in the inventive method and making up computer control system;
Fig. 3 is an image recognition check software flow pattern in the inventive method.
Embodiment
The inventive method is by flow implementation shown in Figure 1, and the check base station of wherein building also makes up computer control system by formation enforcement shown in Figure 2.
Wherein, linear array camera 8 adopts the Piranha 3 black and white line array cameras of DALSA company production; The LED illuminating lamp that illuminating lamp 9 adopts PHILIPS Co. to produce; The 39BYG801 stepper motor that driving motor 10 employing Changzhou Ya Meike BMW electrical machinery plants produce; Travelling belt 11 adopts the customized travelling belt of rubber material; The bearing of drive bearing 12 employing Changchun Ao Pu photoelectricity technology corporation, Ltd.s processing; Pedestal 13 adopts cast iron materials by Changchun Ao Pu photoelectricity technology corporation, Ltd. processing and fabricating; Computer-processing equipment 15 adopts and grinds magnificent IPC-610 industrial computer.

Claims (1)

1. method of inspection of components and parts welding correctness on the checking circuit plate in batches; It is characterized in that comprising and build the check base station and make up computer control system (1); Set up check template (2); Batch circuit board to be checked is taken a picture (3) one by one, and Flame Image Process also provides the disconnected result (4) of anticipation, carries out manual review (5) for the unacceptable product of judging; The concrete grammar step is:
The first step, build check base station and make up computer control system (1); Comprise linear array camera (8), illuminating lamp (9), driving motor (10), travelling belt (11); Drive bearing (12), pedestal (13), camera data line (14), computer-processing equipment (15), darkroom (16), umbilical cable (17) are formed; The travelling belt (11) of pedestal (13) above the support, drive bearing (12) and darkroom (16); Drive bearing (12) is placed on the two ends and the centre position of travelling belt (11) respectively; Driving motor (10) is positioned at the middle part of pedestal (13) and connects with drive bearing (12) and drive travelling belt (11) through gear and moves; Darkroom (16) is placed on the middle part of pedestal (13); Travelling belt (11) transmits mobile in (16) bottom in the darkroom; Linear array camera (8) is placed in the center upper portion position of (16) in the darkroom; The inner illuminating lamp (9) of installing in the darkroom, both sides (16) of linear array camera (8), pedestal (13) support travelling belt (11), drive bearing (12) and darkroom (16) provide support platform for the transmission of circuit board, photograph; Linear array camera (8) on the pedestal (13) is connected with computer-processing equipment (15) through camera data line (14); The umbilical cable (17) of driving motor (10) is connected with computer equipment (15), under computer picture recognition check control of software, through computer-processing equipment (15) movement velocity of linear array camera (8) photograph time and travelling belt (11) is complementary, thereby obtains the circuit board scanning picture of clear unanimity;
Second step, foundation check template (2); In the time will checking a collection of circuit board; At first desk checking goes out a qualified circuit board as template; Then that this piece desk checking is qualified circuit board template is put into the enterprising line scanning of travelling belt (11) and takes pictures; And, think that promptly it is exactly qualified circuit board that the picture feature of extracting according to image recognition software to be checked conforms to the characteristic that contrasts picture with the contrast picture of photo as other circuit board pictures of image recognition software test for identification;
The 3rd step, to batch circuit board to be checked take a picture one by one (3); In order every circuit board to be checked is put on the travelling belt (11) of pedestal (13) one by one, and, obtains the picture of every circuit board through the circuit board that computer-processing equipment control linear array camera (8) gets into darkroom (16) to each piece surface sweeping of taking a picture;
The 4th step, Flame Image Process also provide anticipation result (4); Whether component number, model, the position of welding on the image recognition software inspection lot analysis on the appliance computer treatment facility, the checking circuit plate be correct, and provide assay;
The 5th step, carry out manual review (5) for the unacceptable product of judging; To computing machine result of determination that provides and the doubtful problem points that provides, carry out the situation of manual review, and give the final test results judgement with problem identificatioin.
CN2011104512467A 2011-12-29 2011-12-29 Inspection method for inspecting welding correctness of the device of device on circuit board in batch Pending CN102539441A (en)

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CN102821400A (en) * 2012-08-23 2012-12-12 青岛积成电子有限公司 Method and device for batch test of wireless performance
CN103399457A (en) * 2013-07-31 2013-11-20 南昌欧菲光电技术有限公司 Automatic focusing function testing system and method for camera module
CN104655643A (en) * 2015-02-12 2015-05-27 天津理工大学 Quality detection system for surface welding process of electronic devices
CN104853539A (en) * 2015-04-14 2015-08-19 中山市智牛电子有限公司 Method for fully automatically detecting surface-mounting precision of electronic elements
CN105046428A (en) * 2015-07-13 2015-11-11 张红叶 Method for measuring and identifying batch of parts based on mobile terminal
CN106526448A (en) * 2016-09-30 2017-03-22 厦门通士达照明有限公司 Automatic detecting system and detection method for power supply drive board
CN106886800A (en) * 2017-03-20 2017-06-23 上海与德科技有限公司 The positioner and method of leakage current failure
CN107633508A (en) * 2017-09-06 2018-01-26 中国电力科学研究院 One kind metering product printed substrate outward appearance verification method and system
CN107862690A (en) * 2017-11-22 2018-03-30 佛山科学技术学院 The circuit board element localization method and positioner of a kind of feature based Point matching
CN107886131A (en) * 2017-11-24 2018-04-06 佛山科学技术学院 One kind is based on convolutional neural networks detection circuit board element polarity method and apparatus
CN108311413A (en) * 2018-01-08 2018-07-24 信利(惠州)智能显示有限公司 Product automatic screening system and product auto-screening method
CN108961213A (en) * 2018-05-29 2018-12-07 江苏本川智能电路科技股份有限公司 A kind of equipment and its detection method for realizing mass check borehole quality
CN109668861A (en) * 2018-12-25 2019-04-23 江苏日托光伏科技股份有限公司 The component backboard method of inspection after a kind of MWT lamination
CN110515582A (en) * 2019-09-27 2019-11-29 中国科学院长春光学精密机械与物理研究所 A kind of circuit board is taken pictures information display system
CN111258292A (en) * 2018-12-03 2020-06-09 苏州迪飞达科技股份有限公司 Controller appearance detection acceptance method
CN111610776A (en) * 2020-05-21 2020-09-01 浙江德清盛宏电器有限公司 Electronic control panel inspection method
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

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102821400A (en) * 2012-08-23 2012-12-12 青岛积成电子有限公司 Method and device for batch test of wireless performance
CN103399457A (en) * 2013-07-31 2013-11-20 南昌欧菲光电技术有限公司 Automatic focusing function testing system and method for camera module
CN103399457B (en) * 2013-07-31 2016-03-30 南昌欧菲光电技术有限公司 Camera module automatic focusing function test macro and method
CN104655643A (en) * 2015-02-12 2015-05-27 天津理工大学 Quality detection system for surface welding process of electronic devices
CN104853539A (en) * 2015-04-14 2015-08-19 中山市智牛电子有限公司 Method for fully automatically detecting surface-mounting precision of electronic elements
CN105046428A (en) * 2015-07-13 2015-11-11 张红叶 Method for measuring and identifying batch of parts based on mobile terminal
CN105046428B (en) * 2015-07-13 2018-12-28 张红叶 A method of identification part volume is measured based on mobile terminal
CN106526448A (en) * 2016-09-30 2017-03-22 厦门通士达照明有限公司 Automatic detecting system and detection method for power supply drive board
CN106886800A (en) * 2017-03-20 2017-06-23 上海与德科技有限公司 The positioner and method of leakage current failure
CN106886800B (en) * 2017-03-20 2020-10-27 上海科文斯集成微电有限公司 Leakage current fault positioning device and method
CN107633508A (en) * 2017-09-06 2018-01-26 中国电力科学研究院 One kind metering product printed substrate outward appearance verification method and system
CN107862690A (en) * 2017-11-22 2018-03-30 佛山科学技术学院 The circuit board element localization method and positioner of a kind of feature based Point matching
CN107862690B (en) * 2017-11-22 2023-11-14 佛山科学技术学院 Circuit board component positioning method and device based on feature point matching
CN107886131A (en) * 2017-11-24 2018-04-06 佛山科学技术学院 One kind is based on convolutional neural networks detection circuit board element polarity method and apparatus
CN108311413A (en) * 2018-01-08 2018-07-24 信利(惠州)智能显示有限公司 Product automatic screening system and product auto-screening method
CN108961213A (en) * 2018-05-29 2018-12-07 江苏本川智能电路科技股份有限公司 A kind of equipment and its detection method for realizing mass check borehole quality
CN108961213B (en) * 2018-05-29 2022-04-05 江苏本川智能电路科技股份有限公司 Equipment for realizing batch inspection of drilling quality and detection method thereof
CN111258292A (en) * 2018-12-03 2020-06-09 苏州迪飞达科技股份有限公司 Controller appearance detection acceptance method
CN109668861A (en) * 2018-12-25 2019-04-23 江苏日托光伏科技股份有限公司 The component backboard method of inspection after a kind of MWT lamination
CN110515582A (en) * 2019-09-27 2019-11-29 中国科学院长春光学精密机械与物理研究所 A kind of circuit board is taken pictures information display system
CN111610776A (en) * 2020-05-21 2020-09-01 浙江德清盛宏电器有限公司 Electronic control panel inspection method
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

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Application publication date: 20120704