CN109696444A - A kind of condenser type mould group screen appearance detection system and method - Google Patents
A kind of condenser type mould group screen appearance detection system and method Download PDFInfo
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- CN109696444A CN109696444A CN201910049789.2A CN201910049789A CN109696444A CN 109696444 A CN109696444 A CN 109696444A CN 201910049789 A CN201910049789 A CN 201910049789A CN 109696444 A CN109696444 A CN 109696444A
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- detection
- condenser type
- carrying platform
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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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
Abstract
This application involves a kind of condenser type mould group screen appearance detection system and method, system includes positive linear array scanning detection apparatus, front multiple light courcess combine detection device, front edge detection device, reverse side whole detection device, the first carrying platform, the second carrying platform, the first mechanical arm and the second mechanical arm.By the way that upper thread battle array scanning detection apparatus, front multiple light courcess combine detection device, front edge detection device, reverse side whole detection device is arranged, comprehensive detection can be carried out to all kinds of defects of condenser type mould group screen to be detected, ensure that the comprehensive and accuracy of detection.In addition, coordinating the running between each detection device by the first carrying platform of setting, the second carrying platform and mechanical arm, the detection efficiency of entire detection process can be improved.
Description
Technical field
The present invention relates to field of optical detection more particularly to a kind of condenser type mould group screen appearance detection systems and method.
Background technique
Quickly upgrade along with intelligent terminal industry, has expedited the emergence of out the huge liquid crystal display panel market demand.Mesh
Before, the smart phone part most crucial as intelligent terminal, mainly using TFT-LCD capacitive touch screen as display panel, OLED
The still prematurity of the market of display panel.Mainly by film conductive layer, the lower glass of TFT is arranged in TFT-LCD capacitive touch display screen
The top glass substrate of colorized optical filtering is arranged in glass substrate, forms in conjunction with liquid crystal cell.TFT, that is, thin-film electro pole pipe, can by signal and
Changing to control the rotation direction of liquid crystal molecule for voltage, changes the radiation direction of bottom backlight, finally by the coloured silk of upper substrate
Colo(u)r filter realizes trichromatic light emitting control, to complete the Dynamically Announce and touch control of color image.
TFT-LCD module group display screen is constituted in above-mentioned apparatus bottom placement backlight, has been in producing line in current process
End factory state.AOI lighting detection is added in this stage for all manufacturers and AVI appearance detects process, respectively to will go out
The display screen of factory carries out the bad detection of lighting and bad order detection.
As shown in Figure 7: existing TFT-LCD condenser type mould group screen structure includes CTP (Thin film conductive glassy layer), surface cover
Plate shell, upper P (colorized optical filtering glass substrate), liquid crystal cell, lower P (thin-film electro pole pipe glass substrate) and backlight module.
Wherein, it is (colored can be divided into surface coat, FPC (conductive strips), CTP (Thin film conductive glassy layer), upper P for bad order
Filter glass substrate), lower P (thin-film electro pole pipe glass substrate) three parts defect type.
The defect of surface coat mainly has glass scratch, cover board to fall paint, frame recess, Metal Deformation；FPC defect mainly has
PIN needle is bad/missing, FPC injured；CTP defect collapses angle including scuffing, dirty, bubble, foreign matter, edge；Upper P defect mainly has different
Object, dirty, bubble, recess；Lower P defect mainly scratches.
In conclusion the open defect detection project of TFT-LCD condenser type mould group screen is more and widely distributed, in practical life
It produces in environment, there is also subjective judgement mistakes or details to omit for skilled operator, it is also desirable to largely check work.Therefore it is existing
With the presence of TFT-LCD condenser type mould group screen open defect detection detection project not comprehensively, detection efficiency is low, detection accuracy
It cannot be guaranteed that the defects of.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention provides a kind of condenser type mould group screen appearance detection system.
The technical scheme to solve the above technical problems is that a kind of condenser type mould group screen appearance detection system, packet
Include positive linear array scanning detection apparatus, front multiple light courcess combine detection device, front edge detection device, reverse side whole detection dress
It sets, the first carrying platform, the second carrying platform, the first mechanical arm and the second mechanical arm.
First carrying platform and the setting of second carrying platform interval.
First carrying platform is installed below the positive linear array scanning detection apparatus, is used for the condenser type mould
The detection zone that group screen is carried to the positive linear array scanning detection apparatus carries out just for the positive linear array scanning detection apparatus
Upper thread battle array Scanning Detction.
First mechanical arm is installed between first carrying platform and second carrying platform, is used for institute
It states condenser type mould group screen and is transported to second carrying platform from first carrying platform；
The front multiple light courcess combine detection device is located at the top of second carrying platform, for passing through described the
It is more that the condenser type mould group screen that two carrying platforms are carried to the detection zone of the front multiple light courcess combine detection device carries out front
Combination of light sources detection.
The front edge detection device is located at the top of shown second carrying platform, is used for by described second
The condenser type mould group screen that carrying platform is carried to the detection zone of the front edge detection device carries out front edge detection.
Second mechanical arm is installed between second carrying platform and the reverse side whole detection device, is used for
The condenser type mould group screen is carried to the detection zone of the reverse side whole detection device for the reverse side whole detection device
Carry out reverse side whole detection.
The invention has the advantages that by setting upper thread battle array scanning detection apparatus, front multiple light courcess combine detection device,
Front edge detection device, reverse side whole detection device can carry out all kinds of defects of condenser type mould group screen to be detected complete
Orientation detection ensure that the comprehensive and accuracy of detection.In addition, by setting the first carrying platform, the second carrying platform with
And mechanical arm coordinates the running between each detection device, and the detection efficiency of entire detection process can be improved.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the positive linear array scanning detection apparatus includes the linear light being all set in above first carrying platform
Source and linear array scanning camera for carrying out positive linear array Scanning Detction.
Beneficial effect using above-mentioned further scheme is the positive linear array being made up of linear light source and linear array scanning camera
Scanning detection apparatus, linear array scanning camera can using angled manner acquisition display screen surface close to the region of high-reflection region, with
This must collect the diffusing reflection light of fault location to greatest extent.Also, the mode of linear array scanning can make full use of single linear light source
The high density light of transmitting avoids battle array acquisition mode inefficient on light supply apparatus in face from using, can effectively collect as surface layer,
Zoning is reflected in the scuffing in superficial reflex area, foreign matter, dirty and bubble, foreign matter, the bubble of middle layer echo area, the apparent middle layer in part
The defects of hurting, be dirty.
Further, the linear array scanning camera is 8K linear array scanning camera.
Beneficial effect using above-mentioned further scheme is, by using 8K linear array scanning camera, to guarantee Image Acquisition
Accuracy.
Further, the front multiple light courcess combine detection device includes be set to second carrying platform periphery first
Area array cameras, annular light source and strip source group, the annular light source are located at the top of the strip source group, and are located at described
The vertical top of second carrying platform (2), first area array cameras are located at the vertical top of the annular light source.
Beneficial effect using above-mentioned further scheme is to pass through the first area array cameras, annular light source and strip source group
What is constituted states front multiple light courcess combine detection device, can be acquired with high-resolution area array cameras vertical direction, annular light source
More uniform light can be got into be measured group of screen surfaces, since its optical power is moderate, it is excessive not will lead to the brightness of cover board rim area,
So that relatively can understand to take the texture on cover board rim area surface.Wherein, lid can be collected when annular light source works
Edges of boards frame falls the defects of paint, cover board frame impurity.Strip source group squeezes into light from four sides of group screen to be measured, thus can be with
The detail analysis structure of group screen echo area to be measured is beaten it is bright, so as to by the defect at middle layer, deep layer it is opposite must beat it is bright, so
The unconspicuous middle layer echo area scuffing in part, dirty, the scuffing etc. in deep reflex area can be collected in the work of strip source group
Defect.
Further, the strip source group include four strip sources, four strip sources be in same plane and
Around rectangular.
Beneficial effect using above-mentioned further scheme is that rectangular strip source group is combined by four strip sources
It is not only simple in structure, and effectively beats the detail analysis structure of group screen echo area to be measured bright.
Further, the front edge detection device includes the second area array cameras and coaxial light source；The second face battle array phase
Machine and the coaxial light source are respectively positioned on the periphery of second carrying platform；Second area array cameras is located at the coaxial light source
Top.
Beneficial effect using above-mentioned further scheme is the positive side being made up of the second area array cameras and coaxial light source
Edge detection device, can, coaxial light source that radiation direction average larger with optical density illuminate the overall profile of group screen to be measured, by it
Pass through the uniform Ground Split of intensity contrast with background.Since the cover board frame of high reflectivity can be anti-by the parallel rays irradiated vertically
Direction reflects back, and at cover board frame edge or edge it is small it is damaged can be unrestrained to the parallel rays irradiated vertically anti-
It is emitted back towards, to realize that fault location gray value is very low in the image of shooting.Therefore cover board frame breakage, cover board side can be collected
Frame corner is damaged, and the defects of angle is collapsed in the breakage of shallow-layer edge.
Further, the side wall of the coaxial light source is also connected with the elevating mechanism for going up and down the coaxial light source.
Beneficial effect using above-mentioned further scheme is, by the side wall connection elevating mechanism in coaxial light source, thus
The height of controllable coaxial light source, can prevent from transporting the interference of platform and light source cabinet with this.
Further, the reverse side whole detection device includes third area array cameras and annular shadowless lamp, the third face battle array
Camera and the annular shadowless lamp are all set in the periphery of second mechanical arm, and the third area array cameras is positioned at described
The top of annular shadowless lamp.
Beneficial effect using above-mentioned further scheme is principle to be irradiated without shadow using annular shadowless lamp, by group screen to be measured
Cover metal portions, frame portion and the defect of the part FPC of reverse side can be more visible beat it is bright, recycle area array cameras carry out
The defects of Image Acquisition can collect frame and fall paint, damage, Metal Deformation, FPC injured, and FPC probe lacks or is bad.
In order to solve the above-mentioned technical problem the present invention provides a kind of condenser type mould group screen appearance detecting method.
Its technical solution is as follows: a kind of condenser type mould group screen appearance detecting method, applied to above-mentioned condenser type mould group screen
Appearance detection system, method include:
Step 1, condenser type mould group screen is loaded into first carrying platform, first carrying platform carries the electricity
Rong Shimo group screen at the uniform velocity carries out positive linear array Scanning Detction by the detection zone of the positive linear array scanning detection apparatus；
Step 2, after the completion of the positive linear array Scanning Detction, by first mechanical arm by the condenser type mould
Group screen is transported to second carrying platform, and second carrying platform delivers the condenser type mould group screen to the front mostly light
The detection zone of source combine detection device carries out front multiple light courcess combine detection；
Step 3, after the completion of the front multiple light courcess combine detection, second carrying platform delivers the condenser type mould
The detection zone of group screen to the front edge detection device carries out front edge detection；
Step 4, after the completion of front edge detection, the condenser type mould group screen is transported by second mechanical arm
Detection zone to the reverse side whole detection device carries out reverse side whole detection.
The invention has the advantages that can using above-mentioned detection method based on the condenser type mould group screen appearance detection system
Quickly, simply, periodically complete automation collection process, avoid the complicated procedures of forming of artificial detection, improve detection efficiency.
Further, the specific implementation of the step 1 further include:
By the detection of the incident ray and the condenser type mould group screen of the linear light source of the positive linear array scanning detection apparatus
The angle in face is set as 30 degree；By the reception light and the electricity of the linear array scanning camera of the positive linear array scanning detection apparatus
The angle of the detection faces of Rong Shimo group screen is set as 45 degree.
Beneficial effect using above-mentioned further scheme is must can to collect fault location to greatest extent by above-mentioned setting
Diffusing reflection light improves collecting efficiency and accuracy.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of condenser type mould group screen appearance detection system provided in an embodiment of the present invention；
Fig. 2 is the operation schematic diagram of positive linear array scanning detection apparatus provided in an embodiment of the present invention；
Fig. 3 is the operation schematic diagram of multiple light courcess combine detection device in front provided in an embodiment of the present invention；
Fig. 4 is the operation schematic diagram of strip source group provided in an embodiment of the present invention；
Fig. 5 is the operation schematic diagram of front edge detection device provided in an embodiment of the present invention；
Fig. 6 is the operation schematic diagram of reverse side whole detection device provided in an embodiment of the present invention；
Fig. 7 is TFT-LCD condenser type mould group screen structural schematic diagram provided in an embodiment of the present invention；
In attached drawing, parts list represented by the reference numerals are as follows:
1, the first carrying platform, the 2, second carrying platform, the 3, first mechanical arm, the 4, second mechanical arm, 5, linear light source,
6, linear array scanning camera, 7, strip source group, 8, annular light source, the 9, first area array cameras, 10, coaxial light source, the 11, second face battle array
Camera, 12, elevating mechanism, 13, annular shadowless lamp, 14, third area array cameras.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of condenser type mould group screen appearance detection system provided in an embodiment of the present invention and method, including just
Upper thread battle array scanning detection apparatus, front multiple light courcess combine detection device, front edge detection device, reverse side whole detection device,
First carrying platform 1, the second carrying platform 2, the first mechanical arm 3 and the second mechanical arm 4；
First carrying platform 1 and the setting of second carrying platform 2 interval；
First carrying platform 1 is installed below the positive linear array scanning detection apparatus, is used for the condenser type
The detection zone that mould group screen is carried to the positive linear array scanning detection apparatus is carried out for the positive linear array scanning detection apparatus
Positive linear array Scanning Detction；
First mechanical arm 3 is installed between first carrying platform 1 and second carrying platform 2, is used for
The condenser type mould group screen is transported to second carrying platform 2 from first carrying platform 1；
The front multiple light courcess combine detection device is located at the top of second carrying platform 2, for by described
The condenser type mould group screen that second carrying platform 2 is carried to the detection zone of the front multiple light courcess combine detection device carries out front
Multiple light courcess combine detection；
The front edge detection device is located at the top of shown second carrying platform 2, for passing through described the
The condenser type mould group screen that two carrying platforms 2 are carried to the detection zone of the front edge detection device carries out front edge inspection
It surveys；
Second mechanical arm 4 is installed between second carrying platform 2 and the reverse side whole detection device, is used
It is filled in the detection zone that the condenser type mould group screen is carried to the reverse side whole detection device for the reverse side whole detection
It sets and carries out reverse side whole detection.
In practical application scene, for detecting to mobile phone display screen, pass through the company of aforementioned four optical detection apparatus
Continuous formula beats bright, acquisition process, can shoot most defect types and come.Wherein, four optical detection apparatus, the first delivery
Platform 1, the second carrying platform 2, the first mechanical arm 3 and the second mechanical arm 4, can be integrated in the lesser space 2.0 × 2.4 ㎡
It is interior, each detection device coordinated operation is controlled with the plug-in PLC program of equipment.
For the acquisition and analysis open defect of system, in the acquisition of mobile phone display screen direct picture, according to defect institute
Position depth by four major class of defect type: surface layer, shallow-layer, middle layer and deep layer respectively correspond the surface of module group display screen
Shell, CTP glass substrate, upper P substrate and lower P substrate.
On the basis of aforementioned four major class, several subclasses are divided according to distribution of the defect on plan-position again,
Including marginal zone, cover board rim area, echo area.Mobile phone display screen reverse side is mainly by plated backlight, cover board frame and FPC
It constitutes, defect obviously easily acquires, and corresponding detection means can be normalized.
In the work of its detection system, the first carrying platform 1 is responsible for carrying mobile phone display screen and at the uniform velocity by front detection
The line of device sweeps transducing part；Then by 3 vacuum suction mobile phone display screen of the first mechanical arm, it is flat to be sent to the second delivery
Platform 2；Second carrying platform 2 keeps static in the multiple light courcess combine detection device of front, will after acquiring image to the unit
Mobile phone display screen is sent in front edge detection device, and keeps static in the unit and Image Acquisition is waited to finish；Later by
Second mechanical arm, 4 vacuum suction mobile phone display screen, is sent in reverse side whole detection device, carries out 180 ° of rotations, complete
At the Image Acquisition in the unit；Finally, mobile phone display screen is put into discharging device by the second mechanical arm 4 after rotating again,
Complete the automation collection process of a cycle.
As shown in Figure 2: in the present embodiment, the front linear array scanning detection apparatus includes being all set in first fortune
The linear light source 5 and linear array scanning camera 6 of 1 top of carrying platform.It specifically, can be by a 8K linear array scanning camera and a linear light source
5 compositions.
When its work, sample to be tested front is placed on the first carrying platform 1, the first carrying platform 1 at the uniform velocity passes through camera
Scanning area.Linear light source 5 forms high light reflectivity area in sample surfaces with 60 ° of angles, and camera acquires image, sensing in 45° angle degree
Region is close to high light reflectivity area.
The front linear array scanning detection apparatus is using 6 angled manner of linear array scanning camera acquisition display screen surface close to high anti-
The region in area is penetrated, the diffusing reflection light of fault location must be collected to greatest extent with this.Also, the mode of linear array scanning can be sufficiently sharp
The high density light emitted with single linear light source 5 avoids inefficient use of the face battle array acquisition mode on light supply apparatus.Due to light
For line in a large amount of reflection losses on surface layer and shallow-layer, the detectable echo area depth of the detection unit is limited, be limited in substantially surface layer,
Shallow-layer and middle layer upper surface.This detection device can collected defect are as follows: surface layer, the scuffing in superficial reflex area, foreign matter, it is dirty and
Bubble, foreign matter, the bubble of middle layer echo area, the apparent middle layer echo area in part scratch, are dirty.
As shown in Figure 3 and Figure 4, in the present embodiment, front multiple light courcess described in the front multiple light courcess combine detection device
Combine detection device includes the first area array cameras 9, annular light source 8 and the bar shaped for being all set in 2 periphery of the second carrying platform
Light source group 7, the annular light source 8 is located at the top of the strip source group 7, and is located at the vertical of second carrying platform 2
Top, first area array cameras 9 are located at the vertical top of the annular light source 8 specifically, this detection device is by a face 29M
Array camera, annular light source 8 and four strip source groups 7 at.It is controlled by PLC, annular light source 8 is first turned on, camera acquisition figure
Picture；Annular light source 8 is closed later, opens strip source group 7, camera acquisition testing image.Strip source group 7 is by four strip lights
Source surrounds rectangle, and the level height of the level height and sample to be tested placed maintains an equal level.
When its work, front multiple light courcess combine detection device is acquired using high-resolution area array cameras vertical direction, ring
Shape light source 8 more uniform can obtain light getting to mobile phone display screen surface, since its optical power is moderate, not will lead to cover board rim area
Brightness is excessive, so that relatively can understand to take the texture on cover board rim area surface.
The front multiple light courcess combine detection device annular light source 8 work when can collected defect have: cover board frame falls
Paint, cover board frame impurity.The strip source group 7 that four strip source groups 7 synthesize rectangle is beaten from four sides of mobile phone display screen
Enter light, thus the detail analysis structure of mobile phone display screen echo area can be beaten it is bright, so as to will at middle layer, deep layer lack
It falls into bright with respect to that must beat.This detection unit strip source group 7 work when can collected defect have: the unconspicuous middle layer in part is anti-
Penetrate zoning wound, dirty, the scuffing in deep reflex area.
As shown in Figure 5: in the present embodiment, the front edge detection device includes the second area array cameras 11 and axis light
Source 10；Second area array cameras 11 and the coaxial light source 10 are respectively positioned on the periphery of second carrying platform 2；Described second
Area array cameras 11 is located at the top of the coaxial light source 10.It specifically, can be by a 29M area array cameras and a diffusion axis light
Source 10 forms.
When its work, the coaxial light source 10 larger using optical density, radiation direction is average illuminates the entirety of mobile phone display screen
It is passed through the uniform Ground Split of intensity contrast with background by profile.Since the cover board frame of high reflectivity will can irradiate vertically
Parallel rays opposite direction reflects back, and at cover board frame edge or edge it is small it is damaged can be flat to what is irradiated vertically
Row light diffusing reflection is gone back, so that it is very low to may be implemented in fault location gray value in the image of shooting.
The front edge detection device can collected defect have: cover board frame is damaged, and cover board frame corner is damaged, shallow-layer
Angle is collapsed in the breakage of edge.
Optionally, the side wall of the coaxial light source 10 is also connected with the elevating mechanism for going up and down the coaxial light source 10
12.Elevating mechanism 12 is connected by the side wall in coaxial light source 10, so that the height of controllable coaxial light source 10, can be prevented with this
Transport the interference of platform and light source cabinet.
As shown in Figure 6: in the present embodiment, the reverse side whole detection device includes third area array cameras 14 and annular nothing
Shadow lamp 13, the third area array cameras 14 and the annular shadowless lamp 13 are all set in the periphery of second mechanical arm 4, and
The third area array cameras 14 is located at the top of the annular shadowless lamp 13.It specifically, can be by a 5M area array cameras and one
Annular shadowless lamp 13 forms, and light source can keep the working condition being always on.
When its work, using annular shadowless lamp 13 without shadow irradiate principle, by the cover metal portions of mobile phone display screen reverse side,
Frame portion and the defect of the part FPC can be more visible beat bright, while also meeting reality using the area array cameras of 5M resolution ratio
Demand, avoid using pixel caused by high-precision surface array camera waste and cost.
The detection device can collected defect have: frame fall paint, damage, Metal Deformation, FPC injured, FPC probe missing
Or it is bad.
It should be noted that orderly, the coordinate operation of each detection device in order to realize this detection system, need corresponding
Mating transport mechanism, PLC control program cooperating operation, and carry out image procossing industrial personal computer.And at present have can be real
Show the operating mechanism of function of the present invention, and the code for the PLC program that can be write.Due to PLC control mode, operating mechanism and work
The image procossing of control machine is not the application key protection point, therefore is not repeated.
This detection system is directed in the operation workflow of overall mechanism, the present embodiment will more specifically illustrate this detection system
The use process of system in practical applications.
Firstly, the first carrying platform 1 delivers mobile phone display screen, it is driven by motor and runs to positive linear array Scanning Detction unit
And at the uniform velocity passing through the sensitive zones of the detection unit, PLC control program issues photographing instruction, phase to 8K linear array scanning camera at this time
Machine acquires complete target image and is uploaded to corresponding industrial personal computer.Whole service process can keep being always on for linear light source 5.
Secondly, the first carrying platform 1 stops after leaving positive linear array Scanning Detction unit, the first manipulator is controlled by PLC
3 vacuum of arm, which is inhaled, shields and is transmitted to front multiple light courcess combine detection unit, and the first carrying platform 1 returns to original position at this time.Second delivery
Platform 2 is highly lifted, and the first mechanical arm 3 places mobile phone display screen on the second carrying platform 2, then the first mechanical arm 3
It returns in situ.PLC first, which sends order, opens annular light source 8, and delay 0.5s sends photographing instruction to 29M area array cameras；So
PLC order annular light source 8 is closed afterwards, opens strip source group 7, and delay 0.5s sends photographing instruction to above-mentioned camera；Last
Two carrying platforms 2 highly decline, and hold load mobile phone display screen and leave the detection unit.The face 29M of this detection unit in the process
Array camera needs to transmit two images to corresponding industrial personal computer.
Then, mobile phone display screen is transmitted to front edge detection unit by the second carrying platform 2, is delayed after 0.5s, PLC to
The 29M area array cameras of this detection unit sends photographing instruction, and camera acquisition target complete image simultaneously uploads corresponding industrial personal computer.It claps
According to end, PLC, which sends instruction, is lifted coaxial light source 10, and controls on 4 the second carrying platform of vacuum suction 2 of the second mechanical arm
Target screen.Second mechanical arm 4 leaves this detection unit, and the second carrying platform 2 returns to original position, the axis light of PLC order later
Original returns to original position.The coaxial light source 10 of this detection unit can keep being always on state.
Finally, PLC, which controls the second mechanical arm 4, is transmitted to reverse side whole detection unit for the mobile phone display screen of absorption, together
When the second mechanical arm 4 carry out 180 ° of overturnings, PLC sends photographing instruction to 5M area array cameras after the 0.5s that is delayed, and camera acquired
Whole target image simultaneously uploads corresponding industrial personal computer.The second last mechanical arm 4 is flipped back to original position, according to specific requirements by mobile phone
Display screen is sent out.The annular shadowless lamp 13 of this detection unit can keep being always on state.
Above step completes the Image Acquisition process of a piece of mobile phone module screen, can recycle the process later and realize automation
Detection.
In conclusion a kind of condenser type mould group screen appearance detection system of the present embodiment, have compared with the prior art with
Lower advantage:
Avoid that existing group screen detection system volume is larger, part is many and diverse；It is tediously long to debug correction time；The defect of multiplicity
The problems such as algorithm process that species detection and extensive detection position distribution will lead to is difficult.
For obvious defect type, for example CTP scuffing, CTP foreign matter, CTP are dirty, CTP bubble, upper P bubble, metal
Deformation, cover board fall paint, frame damage, FPC injured, PIN needle it is bad/missing improved using simple high efficiency polishing acquisition scheme
Collecting efficiency, and reduce acquisition cost.
For being difficult to the defect type distinguished, such as the defects of CTP collapses angle, the scuffing of upper P and lower P, foreign matter, using level
The acquisition scheme of classification separates CTP, tri- upper P, lower P defect areas.Corresponding compression camera and corresponding industrial personal computer quantity, simultaneously
Realize the removing and synchronization process of corresponding camera pickup area.
Entire detection system automatically working, not only improves detection speed, but also avoid the existing of artificial detection
Error further improves detection efficiency.
The present embodiment provides a kind of condenser type mould group screen appearance detecting methods, the condenser type applied to any of the above-described embodiment
Mould group screen appearance detection system, method include:
Step 1, condenser type mould group screen is loaded into first carrying platform 1, first carrying platform 1 carries described
Condenser type mould group screen at the uniform velocity carries out positive linear array Scanning Detction by the detection zone of the positive linear array scanning detection apparatus.
Step 2, after the completion of the positive linear array Scanning Detction, by first mechanical arm 3 by the condenser type
Mould group screen is transported to second carrying platform 2, and second carrying platform 2 delivers the condenser type mould group screen to the front
The detection zone of multiple light courcess combine detection device carries out front multiple light courcess combine detection.
Step 3, after the completion of the front multiple light courcess combine detection, second carrying platform 2 delivers the condenser type
The detection zone of mould group screen to the front edge detection device carries out front edge detection.
Step 4, after the completion of front edge detection, the condenser type mould group screen is transported by second mechanical arm 4
The detection zone for being sent to the reverse side whole detection device carries out reverse side whole detection.
Optionally, the specific implementation of the step 1 further include:
By the detection of the incident ray and the condenser type mould group screen of the linear light source 5 of the positive linear array scanning detection apparatus
The angle in face is set as 30 degree；By the reception light of the linear array scanning camera 6 of the positive linear array scanning detection apparatus with it is described
The angle of the detection faces of condenser type mould group screen is set as 45 degree.
Beneficial effect using above-mentioned further scheme is must can to collect fault location to greatest extent by above-mentioned setting
Diffusing reflection light improves collecting efficiency and accuracy.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of condenser type mould group screen appearance detection system, which is characterized in that more including positive linear array scanning detection apparatus, front
Combination of light sources detection device, front edge detection device, reverse side whole detection device, the first carrying platform (1), the second delivery are flat
Platform (2), the first mechanical arm (3) and the second mechanical arm (4)；
First carrying platform (1) and the setting of second carrying platform (2) interval；
First carrying platform (1) is installed below the positive linear array scanning detection apparatus, is used for the condenser type mould
The detection zone that group screen is carried to the positive linear array scanning detection apparatus carries out just for the positive linear array scanning detection apparatus
Upper thread battle array Scanning Detction；
First mechanical arm (3) is installed between first carrying platform (1) and second carrying platform (2), uses
In the condenser type mould group screen is transported to second carrying platform (2) from first carrying platform (1)；
The front multiple light courcess combine detection device is located at the top of second carrying platform (2), for passing through described the
The condenser type mould group screen that two carrying platforms (2) are carried to the detection zone of the front multiple light courcess combine detection device carries out front
Multiple light courcess combine detection；
The front edge detection device is located at the top of shown second carrying platform (2), is used for by described second
The condenser type mould group screen that carrying platform (2) is carried to the detection zone of the front edge detection device carries out front edge inspection
It surveys；
Second mechanical arm (4) is installed between second carrying platform (2) and the reverse side whole detection device, uses
It is filled in the detection zone that the condenser type mould group screen is carried to the reverse side whole detection device for the reverse side whole detection
It sets and carries out reverse side whole detection.
2. a kind of condenser type mould group screen appearance detection system according to claim 1, which is characterized in that the front linear array is swept
Retouching detection device includes being all set in the linear light source (5) above first carrying platform (1) and sweeping for carrying out positive linear array
Retouch the linear array scanning camera (6) of detection.
3. a kind of condenser type mould group screen appearance detection system according to claim 2, which is characterized in that the linear array scanning phase
Machine (6) is 8K linear array scanning camera.
4. a kind of condenser type mould group screen appearance detection system according to claim 1, which is characterized in that the front multiple light courcess
Combine detection device include be set to first area array cameras (9) on the second carrying platform (2) periphery, annular light source (8) and
Strip source group (7), the annular light source (8) are located at the top of the strip source group (7), and it is flat to be located at second delivery
The vertical top of platform (2), first area array cameras (9) are located at the vertical top of the annular light source (8).
5. a kind of condenser type mould group screen appearance detection system according to claim 4, which is characterized in that the strip source group
It (7) include four strip sources, four strip sources are in same plane and around rectangular.
6. a kind of condenser type mould group screen appearance detection system according to claim 1, which is characterized in that the front edge inspection
Surveying device includes the second area array cameras (11) and coaxial light source (10)；Second area array cameras (11) and the coaxial light source
(10) it is respectively positioned on the periphery of second carrying platform (2)；Second area array cameras (11) is located at the coaxial light source (10)
Top.
7. a kind of condenser type mould group screen appearance detection system according to claim 6, which is characterized in that the coaxial light source
(10) side wall is also connected with the elevating mechanism (12) for going up and down the coaxial light source (10).
8. according to claim 1 to a kind of any one of 7 condenser type mould group screen appearance detection systems, which is characterized in that described
Reverse side whole detection device includes third area array cameras (14) and annular shadowless lamp (13), the third area array cameras (14) and institute
The periphery that annular shadowless lamp (13) is set to second mechanical arm (4) is stated, and the third area array cameras (14) is located at institute
State the vertical top of annular shadowless lamp (13).
9. a kind of condenser type mould group screen appearance detecting method, which is characterized in that be applied to the described in any item electricity of claim 1-8
Rong Shimo group screen appearance detection system carries out the detection of condenser type mould group screen appearance, and method includes:
Step 1, condenser type mould group screen is loaded into first carrying platform (1), described in first carrying platform (1) is carried
Condenser type mould group screen at the uniform velocity carries out positive linear array Scanning Detction by the detection zone of the positive linear array scanning detection apparatus；
Step 2, after the completion of the positive linear array Scanning Detction, first mechanical arm (3) is by the condenser type mould group screen
It is transported to second carrying platform (2), it is more to the front that second carrying platform (2) delivers the condenser type mould group screen
The detection zone of combination of light sources detection device carries out front multiple light courcess combine detection；
Step 3, after the completion of the front multiple light courcess combine detection, second carrying platform (2) delivers the condenser type mould
The detection zone of group screen to the front edge detection device carries out front edge detection；
Step 4, after the completion of front edge detection, the condenser type mould group screen is transported by second mechanical arm (4)
Detection zone to the reverse side whole detection device carries out reverse side whole detection.
10. condenser type mould group screen appearance detecting method according to claim 9, which is characterized in that the step 1 it is specific
It realizes further include:
By the detection faces of the incident ray of the linear light source (5) of the positive linear array scanning detection apparatus and the condenser type mould group screen
Angle be set as 30 degree；By the reception light of the linear array scanning camera (6) of the positive linear array scanning detection apparatus with it is described
The angle of the detection faces of condenser type mould group screen is set as 45 degree.
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