CN105258651A - PCB warpage detection method - Google Patents
PCB warpage detection method Download PDFInfo
- Publication number
- CN105258651A CN105258651A CN201510753289.9A CN201510753289A CN105258651A CN 105258651 A CN105258651 A CN 105258651A CN 201510753289 A CN201510753289 A CN 201510753289A CN 105258651 A CN105258651 A CN 105258651A
- Authority
- CN
- China
- Prior art keywords
- pcb
- pcb board
- anchor points
- guide rail
- hypotenuse
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a PCB warpage detection method, which comprises the following steps: A) arranging three PCB positioning points on the PCB; B) when the PCB is conveyed to the conveying guide rail, the sampling equipment takes pictures and samples the PCB, and transmits the sampled pictures to the calculation and comparison system; C) the calculation and comparison system calculates the triangular area or the side length of the bevel edge surrounded by the three PCB locating points on the PCB; D) and E) when the side length of a triangular area or a bevel edge surrounded by three PCB locating points of the three points on the PCB is less than the length of a fixed triangular area or a bevel edge set by the system, judging that the PCB is deformed. The method is easy to implement, has simple steps, can reduce defective products and reduces the production cost.
Description
Technical field
The present invention relates to the printing technology of pcb board, particularly a kind of pcb board buckling deformation detection method.
Background technology
At present, in the printing technology of existing pcb board, all by just printing conductive silver in face at pcb board, pcb board is made to have electric conductivity, and pcb board before printing, if do not detected it, when whether the pcb board of not knowing to carry is certified products print, the pcb board printed is probably just defective products, therefore, before printing pcb board, need first to carrying the PCB come to test, guarantee carries the pcb board of coming to be certified products, but the printing machine of present pcb board does not have test function.
Summary of the invention
The object of the invention is the above-mentioned defect for prior art, a kind of pcb board buckling deformation detection method is provided.
For solving the above-mentioned defect of prior art, technical scheme provided by the invention is: a kind of pcb board buckling deformation detection method, comprises the following steps:
A) three PCB anchor points are set on pcb board;
B) when pcb board is delivered on conveying, sampling equipment to be taken pictures sampling to pcb board, is sent to by the photo of sampling and calculates on comparison system;
C) calculate comparison system to calculate the triangle area that PCB anchor point surrounds of three on pcb board or the hypotenuse length of side;
D) Data Comparison, the triangle area surround three PCB anchor points of 3 on pcb board or the fixed triangle area of the hypotenuse length of side and Operation system setting or the hypotenuse length of side contrast;
E) when the triangle area that three PCB anchor points of 3 on pcb board surround or the hypotenuse length of side are less than fixed triangle area or the hypotenuse length of side of Operation system setting, then be judged to be that this pcb board is out of shape, if when the triangle area that on pcb board, three PCB anchor points of 3 surround or the hypotenuse length of side equal fixed triangle area or the hypotenuse length of side of Operation system setting, be then judged to be that this pcb board is certified products.
One as pcb board buckling deformation detection method of the present invention is improved, and the triangle that three PCB anchor points on described pcb board surround is right-angle triangle.
One as pcb board buckling deformation detection method of the present invention improve in, the computing method of the hypotenuse length of side described in (3) step are the hypotenuse computing method of right-angle triangle, and formula is: straight flange a
2+ straight flange b
2=hypotenuse c
2.
One as pcb board buckling deformation detection method of the present invention is improved, and on pcb board described in (3) step, the algorithm of the triangle area that three PCB anchor points of 3 surround is leg-of-mutton areal calculation formula.
One as pcb board buckling deformation detection method of the present invention is improved, conveying described in (1) step comprises determines guide rail and adjustable dynamic guide rail, described dynamic guide rail is driven by a servomotor, when pcb board puts into conveying, the distance that servomotor drives dynamic guide rail to regulate and determine between guide rail, makes to determine guide rail and pcb board clamped by dynamic guide rail.
One as pcb board buckling deformation detection method of the present invention is improved, and pcb board described in (1) step is arranged wherein two PCB anchor points of three PCB anchor points in the same side, another PCB anchor point is in other side.
Compared with prior art, advantage of the present invention is: present invention employs three PCB anchor points, three PCB anchor points surround a right-angle triangle, calculated by the hypotenuse of computing system diabolo, if when the hypotenuse length calculated is less than the fixing hypotenuse length of side of Operation system setting, then be judged to be that this pcb board is out of shape, if when the hypotenuse length of side that on pcb board, three PCB anchor points of 3 surround equals the fixing hypotenuse length of side of Operation system setting, then be judged to be that this pcb board is certified products, can print.This method is implemented easily, and step is simple, can reduce defective products, reduces production cost.
Embodiment
Just according to specific embodiment, the invention will be further described below, but embodiments of the invention are not limited to this.
Embodiment one: a kind of pcb board buckling deformation detection method, comprises the following steps:
A) three PCB anchor points are set on pcb board;
B) when pcb board is delivered on conveying, sampling equipment to be taken pictures sampling to pcb board, is sent to by the photo of sampling and calculates on comparison system;
C) calculate comparison system to calculate the triangle hypotenuse c length of side that the PCB anchor point of three on pcb board surrounds;
D) Data Comparison, the triangle hypotenuse c length of side surround three PCB anchor points of 3 on pcb board and the fixed triangle hypotenuse c length of side of Operation system setting contrast;
E) when the triangle area that three PCB anchor points of 3 on pcb board surround or the hypotenuse length of side are less than the fixed triangle hypotenuse c length of side of Operation system setting, then be judged to be that this pcb board is out of shape, if when the triangle hypotenuse c length of side that on pcb board, three PCB anchor points of 3 surround equals the fixed triangle hypotenuse c length of side of Operation system setting, be then judged to be that this pcb board is certified products.
Preferably, the triangle that three PCB anchor points on pcb board surround is right-angle triangle.
Preferably, the computing method of (3) the step hypotenuse length of side are the hypotenuse computing method of right-angle triangle, and formula is: straight flange a
2+ straight flange b
2=hypotenuse c
2.
Preferably, the conveying of (1) step comprises determines guide rail and adjustable dynamic guide rail, and dynamic guide rail is driven, when pcb board puts into conveying by a servomotor, the distance that servomotor drives dynamic guide rail to regulate and determine between guide rail, makes to determine guide rail and pcb board clamped by dynamic guide rail.
Preferably, (1) step pcb board is arranged wherein two PCB anchor points of three PCB anchor points in the same side, another each and every one PCB anchor point is in other side.
Present invention employs three PCB anchor points, three PCB anchor points surround a right-angle triangle, calculated by the hypotenuse c of computing system diabolo, if when the hypotenuse c length calculated is less than the fixing hypotenuse length of side of Operation system setting, then be judged to be that this pcb board is out of shape, if when the hypotenuse c length of side that on pcb board, three PCB anchor points of 3 surround equals the fixing hypotenuse c length of side of Operation system setting, be then judged to be that this pcb board is certified products, can print.This method is implemented easily, and step is simple, can reduce defective products, reduces production cost.
Embodiment two: a kind of pcb board buckling deformation detection method, comprises the following steps:
A) three PCB anchor points are set on pcb board;
B) when pcb board is delivered on conveying, sampling equipment to be taken pictures sampling to pcb board, is sent to by the photo of sampling and calculates on comparison system;
C) calculate comparison system to calculate the triangle area s that PCB anchor point surrounds of three on pcb board; Computing formula is: base a × high h ÷ 2=area s;
D) Data Comparison, the triangle area s surround three PCB anchor points of 3 on pcb board and the fixed triangle area of Operation system setting contrast;
E) when the triangle area surrounded when three PCB anchor points of 3 on pcb board is less than the fixed triangle area s of Operation system setting, then be judged to be that this pcb board is out of shape, if when the triangle area s that on pcb board, three PCB anchor points of 3 surround equals the fixed triangle area s of Operation system setting, be then judged to be that this pcb board is certified products.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and structure, scope of the present invention is limited by claims and equivalency range thereof.
Claims (6)
1. a pcb board buckling deformation detection method, is characterized in that, comprises the following steps:
A) three PCB anchor points are set on pcb board;
B) when pcb board is delivered on conveying, sampling equipment to be taken pictures sampling to pcb board, is sent to by the photo of sampling and calculates on comparison system;
C) calculate comparison system to calculate the triangle area that PCB anchor point surrounds of three on pcb board or the hypotenuse length of side;
D) Data Comparison, the triangle area surround three PCB anchor points of 3 on pcb board or the fixed triangle area of the length of side and Operation system setting or the length of side contrast;
E) when the triangle area that three PCB anchor points of 3 on pcb board surround or the hypotenuse length of side are less than fixed triangle area or the hypotenuse length of side of Operation system setting, then be judged to be that this pcb board is out of shape, if when the triangle area that on pcb board, three PCB anchor points of 3 surround or the hypotenuse length of side equal fixed triangle area or the hypotenuse length of side of Operation system setting, be then judged to be that this pcb board is certified products.
2. pcb board buckling deformation detection method according to claim 1, is characterized in that, the triangle that three PCB anchor points on described pcb board surround is right-angle triangle.
3. pcb board buckling deformation detection method according to claim 2, is characterized in that, the computing method of the hypotenuse length of side described in (3) step are the hypotenuse computing method of right-angle triangle, and formula is: straight flange a
2+ straight flange b
2=hypotenuse c
2.
4. pcb board buckling deformation detection method according to claim 1, is characterized in that, on pcb board described in (3) step, the algorithm of the triangle area that three PCB anchor points of 3 surround is leg-of-mutton areal calculation formula.
5. pcb board buckling deformation detection method according to claim 1, it is characterized in that, conveying described in (1) step comprises determines guide rail and adjustable dynamic guide rail, described dynamic guide rail is driven by a servomotor, when pcb board puts into conveying, the distance that servomotor drives dynamic guide rail to regulate and determine between guide rail, makes to determine guide rail and pcb board clamped by dynamic guide rail.
6. pcb board buckling deformation detection method according to claim 1, is characterized in that, pcb board described in (1) step is arranged wherein two PCB anchor points of three PCB anchor points in the same side, another PCB anchor point is in other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753289.9A CN105258651B (en) | 2015-11-05 | 2015-11-05 | PCB warpage detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753289.9A CN105258651B (en) | 2015-11-05 | 2015-11-05 | PCB warpage detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105258651A true CN105258651A (en) | 2016-01-20 |
| CN105258651B CN105258651B (en) | 2017-10-24 |
Family
ID=55098437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753289.9A Active CN105258651B (en) | 2015-11-05 | 2015-11-05 | PCB warpage detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105258651B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478370A (en) * | 2020-11-17 | 2021-03-12 | 昆山国显光电有限公司 | Tray, warpage detection system and warpage detection method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011004307A1 (en) * | 2009-07-07 | 2011-01-13 | Sintesi Scpa | System for measuring the deformation of a structure with interferometric laser sensors |
| CN103115590A (en) * | 2013-01-25 | 2013-05-22 | 浪潮电子信息产业股份有限公司 | PCB (printed circuit board) smoothness detection method |
| CN203163701U (en) * | 2013-02-01 | 2013-08-28 | 东莞市荣旭自动化科技有限公司 | High-precision terminal flatness detector |
| CN203259127U (en) * | 2013-05-13 | 2013-10-30 | 昱鑫科技(苏州)有限公司 | Measuring instrument for detecting internal circuit of PCB board |
| CN103673934A (en) * | 2013-12-31 | 2014-03-26 | 中国矿业大学 | Method for detecting planeness of PCB based on network projection |
| CN104236892A (en) * | 2014-10-08 | 2014-12-24 | 东方电气集团东方汽轮机有限公司 | Method for testing wind turbine blade static force loading vertical displacement and deformation |
| CN204359276U (en) * | 2014-10-29 | 2015-05-27 | 陕西彩虹电子玻璃有限公司 | A kind of glass substrate wrapping image automatic on-line pick-up unit |
-
2015
- 2015-11-05 CN CN201510753289.9A patent/CN105258651B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011004307A1 (en) * | 2009-07-07 | 2011-01-13 | Sintesi Scpa | System for measuring the deformation of a structure with interferometric laser sensors |
| CN103115590A (en) * | 2013-01-25 | 2013-05-22 | 浪潮电子信息产业股份有限公司 | PCB (printed circuit board) smoothness detection method |
| CN203163701U (en) * | 2013-02-01 | 2013-08-28 | 东莞市荣旭自动化科技有限公司 | High-precision terminal flatness detector |
| CN203259127U (en) * | 2013-05-13 | 2013-10-30 | 昱鑫科技(苏州)有限公司 | Measuring instrument for detecting internal circuit of PCB board |
| CN103673934A (en) * | 2013-12-31 | 2014-03-26 | 中国矿业大学 | Method for detecting planeness of PCB based on network projection |
| CN104236892A (en) * | 2014-10-08 | 2014-12-24 | 东方电气集团东方汽轮机有限公司 | Method for testing wind turbine blade static force loading vertical displacement and deformation |
| CN204359276U (en) * | 2014-10-29 | 2015-05-27 | 陕西彩虹电子玻璃有限公司 | A kind of glass substrate wrapping image automatic on-line pick-up unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478370A (en) * | 2020-11-17 | 2021-03-12 | 昆山国显光电有限公司 | Tray, warpage detection system and warpage detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105258651B (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2701009A3 (en) | Paper conveying, jam detection method, and computer program | |
| CN103533771A (en) | Visual system of chip mounter | |
| EP2708953A3 (en) | Paper conveying apparatus, abnormality detection method, and computer program | |
| EP2803484A3 (en) | Substrate separation apparatus and method | |
| EP2708952A3 (en) | Paper conveying apparatus, jam detection method, and computer program | |
| CN105258651A (en) | PCB warpage detection method | |
| CN203077674U (en) | Material feeding device | |
| CN206325850U (en) | A kind of lithium ion flexible package battery pole piece spacing widens mechanism | |
| CN204069470U (en) | A kind of structure detecting the anti-welding aligning accuracy of high-precision circuit board | |
| CN104858152A (en) | Automatic sorting tool for sizes of chain and chain plate holes | |
| CN205050112U (en) | Touch -control display panel and test system | |
| CN104925473B (en) | A kind of control method solving substrate conveyance dolly versatility | |
| CN203457414U (en) | V-cut foolproof circuit board | |
| CN105523357A (en) | Special conveying device used for transferring machine | |
| CN205691020U (en) | A kind of profile shapes device for fast detecting | |
| CN104890377A (en) | Automatic marking machine for potentiometers | |
| CN204701286U (en) | A kind of potentiometer automatic marking machine | |
| CN103287073A (en) | Method for achieving rapid counterpoint of PCB and steel mesh in printing machine | |
| CN203057682U (en) | Display screen PCB plate suitable for steel mesh printing and machine plug-in unit | |
| CN105627974A (en) | Printed circuit board smoothness detection apparatus convenient to move | |
| CN102548198A (en) | Flexible circuit board suitable for packing | |
| CN202916205U (en) | Laser detecting device | |
| CN204439112U (en) | A kind of calibration detects tool | |
| CN205049854U (en) | Manual exposure machine film counterpoint detection device | |
| CN204220508U (en) | Distinguish the equipment placing printed substrate non-defective unit and defective products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 523427 Building 2, No. 11, Jinfu West Road, Tangchun, Liaobu Town, Dongguan City, Guangdong Province Patentee after: Guangdong kelongwei Intelligent Equipment Co.,Ltd. Patentee after: South China University of Technology Address before: Shi Bu Cun Shi Da Lu, Liaobu Town, Dongguan City, Guangdong Province Patentee before: FOLUNGWIN AUTOMATIC EQUIPMENT Co.,Ltd. Patentee before: South China University of Technology |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220510 Address after: 523427 Building 2, No. 11, Jinfu West Road, Tangchun, Liaobu Town, Dongguan City, Guangdong Province Patentee after: Guangdong kelongwei Intelligent Equipment Co.,Ltd. Address before: 523427 Building 2, No. 11, Jinfu West Road, Tangchun, Liaobu Town, Dongguan City, Guangdong Province Patentee before: Guangdong kelongwei Intelligent Equipment Co.,Ltd. Patentee before: South China University of Technology |
|
| TR01 | Transfer of patent right |