CN108672943A - A kind of method of laser repairing shell defect - Google Patents
A kind of method of laser repairing shell defect Download PDFInfo
- Publication number
- CN108672943A CN108672943A CN201810791011.4A CN201810791011A CN108672943A CN 108672943 A CN108672943 A CN 108672943A CN 201810791011 A CN201810791011 A CN 201810791011A CN 108672943 A CN108672943 A CN 108672943A
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- shell
- white point
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- laser
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to a kind of methods of laser repairing shell defect, the image of case surface are acquired by CCD camera, and by picture as information passes to laser marking machine；Then laser marking machine is marked color to the white point on shell, keeps marker color consistent with color of shell according to image information, completes white point reparation.The method of this laser repairing white point, can not only repair the defect of shell white point, additionally it is possible to promote product yield.Meanwhile it is easy to operate, pollution-free, it is cost-effective.
Description
Technical field
The present invention relates to technical field of laser processing, especially a kind of method of laser repairing shell defect.
Background technology
Anode oxidation process is so that its surface is formed oxygen using the method for electrolysis using the product of metal or alloy as anode
Compound film.Anode aluminium mobile phone shell can form black oxide film in oxidation process, but due between tramp metal in alloy
Compound or other foreign matters make oxidation film generate discontinuous place, cause electrolytic coloring white point occur, that is, cause anode aluminium mobile phone shell
Color is inconsistent.The appearance of this white point reduces product yield, and mobile phone shell cost of manufacture is caused to increase.
When specific processing, mobile phone shell after being taken out in anodizing tank by will fully rinse, the especially slit of workpiece, blind hole
Etc., otherwise remaining acid, alkali can be flowed out slowly in dyeing course, and the pH value of staining solution is made to deviate normal range (NR), and
The color and luster and clean position for making residual soda acid portion faces have significant difference or even corrosion oxidation film and are displayed in white, to shadow
Mobile phone shell yield has been rung, and directly can not repair white in solution secondary operation.
Invention content
The technical problem to be solved in the present invention is, provides a kind of method of laser repairing shell defect, it is intended to solve existing
There is shell to be processed in oxidation, it, can not be directly in solution secondary operation, the low problem of yields when there are white-spot defects.
The technical solution adopted by the present invention to solve the technical problems is：A kind of side of laser repairing shell defect is provided
Method includes the following steps：
S1, the image that case surface is acquired by CCD camera, and by picture as information passes to laser marking machine；
S2, laser marking machine are marked color to the white point on shell, make marker color and shell according to image information
Solid colour completes white point reparation.
Further, further comprising the steps of before the step S1：The a collection of aberration of selection, anode film thickness, lustrous surface
The degree shell consistent with roughness carries out grade separation according to the size of white point.
Further, it is 0mm by white spot area2To 0.01mm2Shell, be set as A classes；It is 0.01mm by white spot area2Extremely
0.02mm2Shell, be set as B classes；It is 0.02mm by white spot area2To 0.05mm2Shell, be set as C classes；It is by white spot area
0.05mm2To 0.2mm2Shell, be set as D classes.
Further, the step S2 specifically includes one group of A class mark parameter of debugging, and then laser marking machine uses the A
Class mark parameter is marked color to the white point on A class shells, keeps marker color consistent with color of shell, completes white point and repaiies
It is multiple.
Further, the step S2 specifically includes one group of B class mark parameter of debugging, and then laser marking machine uses the B
Class mark parameter is marked color to the white point on B class shells, keeps marker color consistent with color of shell, completes white point and repaiies
It is multiple.
Further, the step S2 specifically includes one group of C class mark parameter of debugging, and then laser marking machine uses the C
Class mark parameter is marked color to the white point on C class shells, keeps marker color consistent with color of shell, completes white point and repaiies
It is multiple.
Further, the step S2 specifically includes one group of D class mark parameter of debugging, and then laser marking machine uses the D
Class mark parameter is marked color to the white point on D class shells, keeps marker color consistent with color of shell, completes white point and repaiies
It is multiple.
Further, the step S2 specifically includes the average mark parameter of one group of debugging, and then laser marking machine, which uses, is somebody's turn to do
Average mark parameter, is marked color to the white point on A classes, B classes, C classes, D class shells, makes marker color and color of shell one
It causes, completes white point reparation.
Further, the average mark parameter described in the laser marking machine use, can generate 0.04mm2Hot spot, make A
The reparation yields of class shell reaches 60%-80%, and the reparation yields of B class shells is made to reach 90%-100%, makes C class shells
Reparation yields reach 40%-50%, so that the reparation yields of D class shells is reached 0%-10%.
Further, the laser marking machine automatically adjusts the output power of laser according to the gray scale of white point；When white point
Gray scale is higher, then laser power is smaller, and when the gray scale of white point is smaller, then laser power is bigger.
A kind of method of laser repairing shell defect provided by the invention acquires the image of case surface by CCD camera,
And by picture as information passes to laser marking machine；Then laser marking machine carries out the white point on shell according to image information
Marker color keeps marker color consistent with color of shell, completes white point reparation.The method of this laser repairing white point, can not only
Enough repair the defect of shell white point, additionally it is possible to promote product yield.Meanwhile it is easy to operate, pollution-free, it is cost-effective.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the method flow schematic diagram of laser repairing shell defect provided by the invention；
Fig. 2 is the preprosthetic schematic diagram of shell；
Fig. 3 is the schematic diagram after shell is repaired.
Specific implementation mode
In conjunction with attached drawing, elaborate to presently preferred embodiments of the present invention.
As shown in Figure 1, the present invention provides a kind of method of laser repairing shell defect, include the following steps：
S1, the image that case surface is acquired by CCD camera, and by picture as information passes to laser marking machine；Wherein,
The white point information of acquisition is passed to laser marking machine by CCD camera.Light source can be installed simultaneously, light filling illumination is carried out to shell, just
In the Image Acquisition of CCD camera.
S2, laser marking machine are marked color to the white point on shell, make marker color and shell according to image information
Solid colour completes white point reparation.In the present embodiment, shell is mobile phone shell, and the color after mobile phone shell oxidation processing is black,
Therefore black need to be marked to the white point in mobile phone shell in laser marking machine, keep label black consistent with shell black, complete white
Point is repaired.It is, of course, also possible to be the other colors of label.By the method for above-mentioned laser repairing white point, shell can not only be repaired
The defect of white point, additionally it is possible to promote product yield.Meanwhile it is easy to operate, pollution-free, it is cost-effective.If Fig. 2 is before shell is repaired
Schematic diagram.If Fig. 3 is the schematic diagram after shell is repaired.
Further, further comprising the steps of before step S1：The a collection of aberration of selection, anode film thickness, surface gloss and
The consistent shell of roughness, grade separation is carried out according to the size of white point, and laser marking reparation can be improved by classification
Efficiency.
Specifically, it is 0mm by white spot area2To 0.01mm2Shell, be set as A classes；It is 0.01mm by white spot area2Extremely
0.02mm2Shell, be set as B classes；It is 0.02mm by white spot area2To 0.05mm2Shell, be set as C classes；It is by white spot area
0.05mm2To 0.2mm2Shell, be set as D classes.
Step S2 specifically includes one group of A class mark parameter of debugging, and then laser marking machine uses the A class mark parameters, to A
Color is marked in white point on class shell, keeps marker color consistent with color of shell, completes white point reparation.In the present embodiment
In, laser marking machine uses A class mark parameters, can generate 0.01mm2Hot spot, can cover the white point on A class shells, complete white
Point is repaired.
It is noted that mark parameter includes optical maser wavelength, mark frequency, mark depth, spot size etc., when not wrapping
Laser power is included, laser marking chance automatically adjusts the output power of laser according to the gray scale of white point；When the gray scale of white point is higher,
Then laser power is smaller, and when the gray scale of white point is smaller, then laser power is bigger, and laser labelling color can be achieved in this automatic adjustment
It is consistent with color of shell.
Step S2 further includes specifically one group of B class mark parameter of debugging, and then laser marking machine uses the B class mark parameters,
Color is marked to the white point on B class shells, keeps marker color consistent with color of shell, completes white point reparation.In this implementation
In example, laser marking machine uses B class mark parameters, can generate 0.02mm2Hot spot, the white point on B class shells can be covered, complete
White point reparation.
Step S2 further includes specifically one group of C class mark parameter of debugging, and then laser marking machine uses the C class mark parameters,
Color is marked to the white point on C class shells, keeps marker color consistent with color of shell, completes white point reparation.In this implementation
In example, laser marking machine uses C class mark parameters, can generate 0.05mm2Hot spot, the white point on C class shells can be covered, complete
White point reparation.
Step S2 specifically includes one group of D class mark parameter of debugging, and then laser marking machine uses the D class mark parameters, to D
Color is marked in white point on class shell, keeps marker color consistent with color of shell, completes white point reparation.In the present embodiment
In, laser marking machine uses D class mark parameters, can generate 0.2mm2Hot spot, can cover the white point on D class shells, complete white
Point is repaired.
In other embodiments, step S2 specifically includes the average mark parameter of one group of debugging, and then laser marking machine uses
The average mark parameter, is marked color to the white point on A classes, B classes, C classes, D class shells, makes marker color and color of shell
Unanimously, white point reparation is completed.All shells of mark are removed by one group of average mark parameter, need not frequently change ginseng in this way
Number is saved the time, but cannot be guaranteed that 100% repairs.
Laser marking machine can generate 0.04mm using average mark parameter2Hot spot, make the reparation yields of A class shells
Reach 60%-80%, the reparation yields of B class shells is made to reach 90%-100%, the reparation yields of C class shells is made to reach
40%-50% makes the reparation yields of D class shells reach 0%-10%.From the foregoing, it will be observed that hot spot is not much different with white spot area
When, it is higher to repair yields, and hot spot is excessive or the too small reparation for being all unfavorable for white point.
It should be understood that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, to ability
It for field technique personnel, can modify to technical solution described in the above embodiment, or special to which part technology
Sign carries out equivalent replacement；And all such modifications and replacement, it should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of method of laser repairing shell defect, which is characterized in that include the following steps：
S1, the image that case surface is acquired by CCD camera, and by picture as information passes to laser marking machine；
S2, laser marking machine are marked color to the white point on shell, make marker color and color of shell according to image information
Unanimously, white point reparation is completed.
2. the method for laser repairing shell defect according to claim 1, which is characterized in that also wrapped before the step S1
Include following steps：The a collection of aberration of selection, anode film thickness, the surface gloss shell consistent with roughness, according to the area of white point
Size carries out grade separation.
3. the method for laser repairing shell defect according to claim 2, which is characterized in that by white spot area be 0mm2Extremely
0.01mm2Shell, be set as A classes；It is 0.01mm by white spot area2To 0.02mm2Shell, be set as B classes；It is by white spot area
0.02mm2To 0.05mm2Shell, be set as C classes；It is 0.05mm by white spot area2To 0.2mm2Shell, be set as D classes.
4. the method for laser repairing shell defect according to claim 3, which is characterized in that the step S2 is specifically included
One group of A class mark parameter is debugged, then laser marking machine uses the A class mark parameters, and the white point on A class shells is marked
Color keeps marker color consistent with color of shell, completes white point reparation.
5. the method for laser repairing shell defect according to claim 3, which is characterized in that the step S2 is specifically included
One group of B class mark parameter is debugged, then laser marking machine uses the B class mark parameters, and the white point on B class shells is marked
Color keeps marker color consistent with color of shell, completes white point reparation.
6. the method for laser repairing shell defect according to claim 3, which is characterized in that the step S2 is specifically included
One group of C class mark parameter is debugged, then laser marking machine uses the C class mark parameters, and the white point on C class shells is marked
Color keeps marker color consistent with color of shell, completes white point reparation.
7. the method for laser repairing shell defect according to claim 3, which is characterized in that the step S2 is specifically included
One group of D class mark parameter is debugged, then laser marking machine uses the D class mark parameters, and the white point on D class shells is marked
Color keeps marker color consistent with color of shell, completes white point reparation.
8. the method for laser repairing shell defect according to claim 3, which is characterized in that the step S2 is specifically included
One group of average mark parameter is debugged, then laser marking machine is using the average mark parameter, on A classes, B classes, C classes, D class shells
White point color is marked, keep marker color consistent with color of shell, complete white point reparation.
9. the method for laser repairing shell defect according to claim 8, which is characterized in that the laser marking machine uses
The average mark parameter, can generate 0.04mm2Hot spot, so that the reparation yields of A class shells is reached 60%-80%, make B
The reparation yields of class shell reaches 90%-100%, and the reparation yields of C class shells is made to reach 40%-50%, makes D class shells
Reparation yields reach 0%-10%.
10. the method for laser repairing shell defect according to claim 1, which is characterized in that the laser marking machine root
The output power of laser is automatically adjusted according to the gray scale of white point；When the gray scale of white point is higher, then laser power is smaller, when the ash of white point
Spend smaller, then laser power is bigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791011.4A CN108672943A (en) | 2018-07-18 | 2018-07-18 | A kind of method of laser repairing shell defect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791011.4A CN108672943A (en) | 2018-07-18 | 2018-07-18 | A kind of method of laser repairing shell defect |
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| CN108672943A true CN108672943A (en) | 2018-10-19 |
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| CN201810791011.4A Pending CN108672943A (en) | 2018-07-18 | 2018-07-18 | A kind of method of laser repairing shell defect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580636A (en) * | 2018-12-03 | 2019-04-05 | 深圳市华星光电半导体显示技术有限公司 | Defects of display panel marking tool |
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