CN110412036A - A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser - Google Patents
A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser Download PDFInfo
- Publication number
- CN110412036A CN110412036A CN201910556832.4A CN201910556832A CN110412036A CN 110412036 A CN110412036 A CN 110412036A CN 201910556832 A CN201910556832 A CN 201910556832A CN 110412036 A CN110412036 A CN 110412036A
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- Prior art keywords
- circle
- dispensing
- teaching
- search
- circular hole
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2408—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring roundness
-
- 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
Abstract
The present invention provides a kind of bad AOI inspection methods of dispensing of five axis circular hole dispensers, the following steps are included: 1) complete on the outside of the rubber ring after dispensing in five axis circular hole dispensers through one teaching circle of the manual teaching of NI Vision Builder for Automated Inspection, it primarily determines round size and location, looks for circle to provide reference position automatically for the later period；2) search outer circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the outside of teaching circle；3) search inner circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the inside of teaching circle；4) points are searched: teaching circle being done multiple annular array equal parts, searches out each characteristic point respectively；5) it adjusts search length: in step 4) based on teaching diameter of a circle size, symmetrically amplifying the concentric circles of a search length, search for any identification point within this range；The AOI inspection method is replaced by NI Vision Builder for Automated Inspection to be manually checked, high-efficient, is determined accurately, and saving manpower, which is finally realized, measures goods on product.
Description
Technical field
The present invention relates to a kind of bad AOI inspection methods of dispensing of five axis circular hole dispensers.
Background technique
As comprehensive screen technique is constantly updated, shields each cell phone manufacturer of accounting maximization comprehensively for raising mobile phone and start blind hole item
The research and development of mesh (camera mounting hole), and project is influenced by carrying out gluing to blind hole to solve camera surrounding enviroment light；
Prior art:
Need manually that (glue is wide, glue is high, internal diameter, glue to Painting effect by controlling tool after fulfiling assignment due to automatic double surface gluer
It is non-round etc.) determined, low efficiency, manpower demand is big, and decision errors seriously affect greatly product batch production, by dispenser
Increase to be arranged to manage by NI Vision Builder for Automated Inspection and requires finally to realize that equipment replaces manual inspection by camera, it is high-efficient, determine
Accurately, saving manpower, which is finally realized, measures goods on product.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of dispensing of five axis circular hole dispensers is provided not
Good AOI inspection method is replaced by NI Vision Builder for Automated Inspection and is manually checked, high-efficient, determines accurately, to save manpower and finally realize production
Goods is measured on product.
The invention is realized in this way a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser, feature exist
In, comprising the following steps:
1) it completes to show on the outside of the rubber ring after dispensing by the manual teaching of NI Vision Builder for Automated Inspection one in five axis circular hole dispensers
Religion circle, primarily determines round size and location, looks for circle to provide reference position automatically for the later period；
2) search outer circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the outside of teaching circle；
3) search inner circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the inside of teaching circle；
4) points are searched: teaching circle being done multiple annular array equal parts, searches out each characteristic point respectively；
5) search length is adjusted: in step 4) based on teaching diameter of a circle size, one search length of symmetrical amplification
The concentric circles of degree searches for any identification point within this range；
6) identification point searched according to step 5), NI Vision Builder for Automated Inspection fit the one immediate circle in place automatically, and certainly
It is dynamic to calculate the circle size and corresponding center location, the outer diameter and inner diameter of rubber ring can be found out, the difference of outer diameter and inner diameter is just wide for glue,
To obtain specific size for dispensing glue, complete to check.
Preferably, after the ccd image sensor of the middle NI Vision Builder for Automated Inspection of step 1) acquires a completion dispensing
Rubber ring image, in the image of acquisition with rectangle frame selection the object to be identified the image position range, machine view
The software of feel system can find the characteristics of image of rectangle frame according to the method set, then be identified.
Preferably, lookup mode is to dark by bright again by secretly being searched to bright in the step 2) and step 3).
Preferably, being directed to the image of ccd image sensor acquisition in lookup mode.
Preferably, the AOI inspection method is for the undesirable detection of mobile phone blind hole dispensing.
Preferably, the AOI inspection method is able to detect, the glue after dispensing is wide, glue is high, internal diameter and circularity.
A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser provided by the present invention, innovation pass through machine
The AOI of device vision system checks that software carries out data processing to the image after completing dispensing, by setting teaching circle, then to its into
Row searches outer circle, searches inner circle, searches points and adjust search length, to replace manual inspection, so that it is high-efficient, determine essence
Really, it saves manpower finally to realize and measures goods on product, the glue after being able to detect dispensing is wide, glue is high, internal diameter and circularity.
Specific embodiment
A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser provided in an embodiment of the present invention, which is characterized in that
The following steps are included:
1) it completes to show on the outside of the rubber ring after dispensing by the manual teaching of NI Vision Builder for Automated Inspection one in five axis circular hole dispensers
Religion circle, primarily determines round size and location, looks for circle to provide reference position automatically for the later period；
2) search outer circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the outside of teaching circle；
3) search inner circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the inside of teaching circle；
4) points are searched: teaching circle being done multiple annular array equal parts, searches out each characteristic point respectively；
5) search length is adjusted: in step 4) based on teaching diameter of a circle size, one search length of symmetrical amplification
The concentric circles of degree searches for any identification point within this range；
6) identification point searched according to step 5), NI Vision Builder for Automated Inspection fit the one immediate circle in place automatically, and certainly
It is dynamic to calculate the circle size and corresponding center location, the outer diameter and inner diameter of rubber ring can be found out, the difference of outer diameter and inner diameter is just wide for glue,
To obtain specific size for dispensing glue, complete to check.
The ccd image sensor of the middle NI Vision Builder for Automated Inspection of step 1) acquires the figure for completing the rubber ring after dispensing
Picture, in the image of acquisition with rectangle frame selection the object to be identified the image position range, NI Vision Builder for Automated Inspection it is soft
Part can find the characteristics of image of rectangle frame according to the method set, then be identified.
Lookup mode is to dark by bright again by secretly being searched to bright in the step 2) and step 3).
The image of ccd image sensor acquisition is directed in lookup mode.
The AOI inspection method is for the undesirable detection of mobile phone blind hole dispensing.
The AOI inspection method is able to detect that the glue after dispensing is wide, glue is high, internal diameter and circularity.
AOI is that high-speed, high precision optical image detection system can be improved with machine vision as examination criteria technology
The shortcomings that traditionally being detected with manpower using optical instrument.AOI application software has with reference to comparison algorithm, without reference check addition
And mingled algorithm.Have and is divided into two major classes, image comparison method and model method of comparison with reference to comparison algorithm.Such methods algorithm letter
It is single, it is easy to accomplish, but it is not easy to detect the flaws such as line width, line-spacing fault.No reference check addition does not need any with reference to figure
As, it judge according to the design rule of image predetermined image graph to be checked like it is no have flaw, set if it does not meet
Meter rule, has been considered as flaw, therefore also referred to as design rule check addition.Although such methods are elm survey line is wide, line-spacing breaks rules
Good effect can be received when this kind of flaw, but its algorithm is complicated, operand is very big, and leakiness Eurya plant line, pad are lost
Etc. big flaw.Mixed method is that will have to be used in mixed way with reference to comparison algorithm and no reference check addition, is overcome to a certain extent
The shortcomings that preceding two classes method, thus the advantages of playing each.For example, template matching method is in conjunction with Mathematical Morphology Method
It uses or connection table method is used in combination with Mathematical Morphology Method.But current this method is also insufficient very mature, calculates
Method is complicated, is not able to satisfy the requirement of real-time detection, and adaptivity is inadequate, system extended capability is poor.The AOI of the present embodiment is checked
Software, which uses, to be had with reference to algorithm.
NI Vision Builder for Automated Inspection is fast-developing branch of artificial intelligence.In brief, machine vision is exactly to use
Machine replaces human eye to measure and judge.NI Vision Builder for Automated Inspection is that (i.e. image-pickup device divides by machine vision product
CMOS and two kinds of CCD) it target will be ingested is converted into picture signal, it sends dedicated image processing system to, obtains mesh shot
Target shape information is transformed into digitized signal according to the information such as pixel distribution and brightness, color；Picture system is to these letters
Number various operations are carried out to extract clarification of objective, and then the device action at scene, this implementation are controlled according to the result of differentiation
Example carries out Image Acquisition using ccd image sensor.
NI Vision Builder for Automated Inspection includes: light source, camera lens (tight shot, zoom camera lens, telecentric lens, microlens), camera
(CCD camera), image processing unit (or image capture card), image processing software, monitor, communication/input-output unit etc.,
Detected target is converted into picture signal using CCD camera by Machine Vision Inspecting System, is sent at dedicated image
Reason system is transformed into digitized signal, image processing system is to these signals according to the information such as pixel distribution and brightness, color
Various operations are carried out to extract clarification of objective, such as area, quantity, position, length, further according to preset permissibility and other
Part output as a result, include size, angle, number, qualification/unqualified, with/without etc., realize automatic identification function.
A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser provided by the present invention, innovation pass through machine
The AOI of device vision system checks that software carries out data processing to the image after completing dispensing, by setting teaching circle, then to its into
Row searches outer circle, searches inner circle, searches points and adjust search length, to replace manual inspection, so that it is high-efficient, determine essence
Really, it saves manpower finally to realize and measures goods on product, the glue after being able to detect dispensing is wide, glue is high, internal diameter and circularity.
It is the preferred embodiment of the present invention above, it is noted that for those skilled in the art,
Various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as this hair
Bright protection scope.
Claims (6)
1. a kind of bad AOI inspection method of dispensing of five axis circular hole dispensers, which comprises the following steps:
1) it completes to pass through one teaching circle of the manual teaching of NI Vision Builder for Automated Inspection on the outside of the rubber ring after dispensing in five axis circular hole dispensers,
It primarily determines round size and location, looks for circle to provide reference position automatically for the later period；
2) search outer circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the outside of teaching circle；
3) search inner circle: NI Vision Builder for Automated Inspection starts to draw close search circle toward rubber ring with the inside of teaching circle；
4) points are searched: teaching circle being done multiple annular array equal parts, searches out each characteristic point respectively；
5) search length is adjusted: in step 4) based on teaching diameter of a circle size, symmetrical one search length of amplification
Concentric circles searches for any identification point within this range；
6) identification point searched according to step 5), NI Vision Builder for Automated Inspection fits the one immediate circle in place automatically, and calculates automatically
The circle size and corresponding center location out can find out the outer diameter and inner diameter of rubber ring, and the difference of outer diameter and inner diameter is just wide for glue, thus
Specific size for dispensing glue is obtained, completes to check.
2. a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser according to claim 1, which is characterized in that
The ccd image sensor of the middle NI Vision Builder for Automated Inspection of step 1) acquires the image for completing the rubber ring after dispensing, is adopting
With the rectangle frame selection object to be identified in the position range of the image in the image of collection, the software of NI Vision Builder for Automated Inspection can basis
The method set finds the characteristics of image of rectangle frame, is then identified.
3. a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser according to claim 1, which is characterized in that
Lookup mode is to dark by bright again by secretly being searched to bright in the step 2) and step 3).
4. a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser according to claim 2 or 3, feature exist
In, be directed in lookup mode ccd image sensor acquisition image.
5. a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser according to claim 1, which is characterized in that
The AOI inspection method is for the undesirable detection of mobile phone blind hole dispensing.
6. a kind of bad AOI inspection method of dispensing of five axis circular hole dispenser according to claim 1, which is characterized in that
The AOI inspection method is able to detect that the glue after dispensing is wide, glue is high, internal diameter and circularity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556832.4A CN110412036A (en) | 2019-06-25 | 2019-06-25 | A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556832.4A CN110412036A (en) | 2019-06-25 | 2019-06-25 | A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser |
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| Publication Number | Publication Date |
|---|---|
| CN110412036A true CN110412036A (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910556832.4A Withdrawn CN110412036A (en) | 2019-06-25 | 2019-06-25 | A kind of bad AOI inspection method of dispensing of five axis circular hole dispenser |
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| Country | Link |
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| CN (1) | CN110412036A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337500A (en) * | 2020-02-24 | 2020-06-26 | Oppo广东移动通信有限公司 | Dispensing control method, display module and electronic equipment |
| CN113933309A (en) * | 2021-10-28 | 2022-01-14 | 赣州市同兴达电子科技有限公司 | Method for retesting defects in blind hole by AOI machine |
-
2019
- 2019-06-25 CN CN201910556832.4A patent/CN110412036A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337500A (en) * | 2020-02-24 | 2020-06-26 | Oppo广东移动通信有限公司 | Dispensing control method, display module and electronic equipment |
| CN113933309A (en) * | 2021-10-28 | 2022-01-14 | 赣州市同兴达电子科技有限公司 | Method for retesting defects in blind hole by AOI machine |
| CN113933309B (en) * | 2021-10-28 | 2023-10-20 | 赣州市同兴达电子科技有限公司 | Method for retesting blind hole Kong Nabu of AOI machine |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191105 |
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| WW01 | Invention patent application withdrawn after publication |