CN107225882B - A kind of laser marking method based on CCD navigator fix - Google Patents
A kind of laser marking method based on CCD navigator fix Download PDFInfo
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- CN107225882B CN107225882B CN201710418332.5A CN201710418332A CN107225882B CN 107225882 B CN107225882 B CN 107225882B CN 201710418332 A CN201710418332 A CN 201710418332A CN 107225882 B CN107225882 B CN 107225882B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
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Abstract
The invention discloses a kind of laser marking methods based on CCD navigator fix, comprising: step 1, is corrected to CCD camera and article carrying platform, so that the coordinate system correlations of the pixel coordinate of CCD camera and article carrying platform；Step 2, CCD camera and galvanometer are corrected, so that the position of CCD camera is associated with the position of galvanometer；Step 3, the navigation of mark Sample location point and mark location point is carried out, the positioning mark hum pattern of mark sample is generated.It is corrected respectively by CCD camera and article carrying platform, galvanometer, realize that the pixel coordinate of CCD camera is associated with the position of the coordinate system correlations of article carrying platform, galvanometer, then the navigation of mark Sample location point and mark location point is carried out, generate the positioning mark hum pattern of mark sample, positioning mark information CAD diagram of such positioning mark hum pattern due to similar sample, precise positioning mark under the real positioning mark information state there are currently no sample CAD diagram, improves the use scope of existing laser marking board.
Description
Technical field
The present invention relates to laser marking technical fields, more particularly to a kind of laser marking side based on CCD navigator fix
Method.
Background technique
Laser marking is one of maximum application field of laser processing, and laser marking is the laser pair using high-energy density
Workpiece carries out local irradiation, vaporizes skin-material or the chemical reaction of color change occurs, to leave permanent marker
A kind of method.Laser marking can get various texts, symbol and pattern etc., and there have to anti-fake and product the retrospect of product to be special
Meaning.
With domestic industry 2020, external industry 4.0 and the fast development of Internet of Things, retrospect and pipe of the factory to product
Manage pay attention to day by day, such as buying, product process and technique, product batches, manufacturer, date of manufacture, the product whereabouts of raw material
Information, these can be carved in product surface by laser marking and be addressed by generating two dimensional code.Simultaneously with product
The fining of processing, to the position precision of product mark, more stringent requirements are proposed.Therefore CCD positioning mark has obtained increasingly
It is widely applied.General CCD positioning mark needs on the basis of products C AD figure, but client does not often have in reality production
The CAD diagram of product, such as pcb board industry, this can limit the application range of laser marking significantly.
Summary of the invention
The object of the present invention is to provide a kind of laser marking method based on CCD navigator fix, real there are currently no CAD diagrams
Under the premise of carry out mark operation, expanded the application range of existing laser marking machine.
In order to solve the above technical problems, the embodiment of the invention provides a kind of laser marking sides based on CCD navigator fix
Method, comprising:
Step 1, CCD camera and article carrying platform are corrected, so that the pixel coordinate of the CCD camera and the loading
The coordinate system correlations of platform；
Step 2, the CCD camera is corrected with galvanometer, so that the position of the position of the CCD camera and the galvanometer
It sets associated；
Step 3, the navigation for carrying out mark Sample location point and mark location point, generates the positioning mark of the mark sample
Hum pattern；The step 1, comprising:
Uncalibrated image is placed in the CCD camera visual field；
Using the uncalibrated image as template, the uncalibrated image central point is captured；
The uncalibrated image is moved on into the lower right in the CCD camera visual field and center capture is carried out to uncalibrated image；
According to preset article carrying platform move distance, the mobile article carrying platform, and center is carried out to the uncalibrated image
It captures；
The coordinate system of the pixel coordinate system and the article carrying platform of the CCD camera is converted, realizes coordinate system
One.
Wherein, the uncalibrated image is point tag image or square indicia image.
Wherein, the step 2, comprising:
Correction paper is placed on the article carrying platform；
The galvanometer makes a call to a spider A point by laser in the center of mark range on the correction paper, so
Cross crunode B and right side, which are beaten, by pre-determined distance in the left side of the point A afterwards beats spider C point by pre-determined distance；
The A point is moved in the CCD camera visual field, template is done to the A point；
The center of the A point, B point and C point is captured by the CCD camera respectively；
The camera position and the galvanometer position are associated.
Wherein, the navigation for carrying out mark Sample location point and mark location point, generates the positioning of the mark sample
Mark hum pattern carries out the navigation of the mark Sample location point Yu the mark location point for manual navigation, generates described beat
The positioning mark hum pattern or picture mosaic navigation picture of standard specimen product carry out leading for the mark Sample location point and the mark location point
Boat, generates the positioning mark hum pattern of the mark sample.
Wherein, the manual navigation carries out the navigation of the mark Sample location point Yu the mark location point, generates institute
State the positioning mark hum pattern of mark sample, comprising:
Determine that locating point position, the mobile article carrying platform make the CCD camera center and the mark Sample location point
M1 dot center be overlapped and click confirmation, mobile platform makes in the M2 point of the CCD camera center and the mark Sample location point
The heart, which is overlapped, clicks confirmation, and mobile platform makes image center be overlapped click confirmation with the center M3 of the mark Sample location point；
Determine that mark location, the mobile article carrying platform make the P1 point at the CCD camera center Yu the mark location point
Center is overlapped and clicks confirmation, and the mobile article carrying platform makes in the P2 point of the CCD camera center and the mark location point
The heart is overlapped and clicks confirmation；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
Wherein, the M1 point, M2 point, M3 point are located at the vertex of constituted isosceles right triangle.
Wherein, the picture mosaic navigation picture carries out the navigation of the mark Sample location point Yu the mark location point, generates
The positioning mark hum pattern of the mark sample, comprising:
Measure the CCD camera field range；
The mobile article carrying platform, is located at the mark sample upper left corner in camera fields of view；
The mark sample size is set；
The article carrying platform is set after the CCD camera is taken pictures every time in the moving distance of X-direction and Y-direction；
Click the CCD camera take pictures generation picture and carry out picture mosaic；
It selective positioning point and is named in the picture mosaic, marking area is selected in the picture mosaic, and be named；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
Wherein, the overlapping widths of the adjacent picture are 1mm~2mm.
Wherein, it is equal in the moving distance of X-direction or Y-direction after the CCD camera is taken pictures every time.
Laser marking method based on CCD navigator fix provided by the embodiment of the present invention has compared with prior art
Following advantages:
Laser marking method provided in an embodiment of the present invention based on CCD navigator fix, comprising:
Step 1, CCD camera and article carrying platform are corrected, so that the pixel coordinate of the CCD camera and the loading
The coordinate system correlations of platform；
Step 2, the CCD camera is corrected with galvanometer, so that the position of the position of the CCD camera and the galvanometer
It sets associated；
Step 3, the navigation for carrying out mark Sample location point and mark location point, generates the positioning mark of the mark sample
Hum pattern.
The laser marking method based on CCD navigator fix is carried out by CCD camera with article carrying platform, galvanometer respectively
Correction, realizes that the position of the pixel coordinate of CCD camera and the coordinate system correlations of article carrying platform, galvanometer is associated, is then beaten
The navigation of standard specimen product anchor point and mark location point generates the positioning mark hum pattern of mark sample, such positioning mark letter
Figure is ceased due to the positioning mark information CAD diagram of similar sample, and real there are currently no under the positioning mark information state of sample CAD diagram
Precise positioning mark improves the use scope of existing laser marking board, simultaneously because without carrying out to existing laser
The hardware modification of mark board, use cost are lower.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of specific embodiment party of the laser marking method provided in an embodiment of the present invention based on CCD navigator fix
The step flow diagram of formula；
Fig. 2 is that the mark board in the laser marking method provided in an embodiment of the present invention based on CCD navigator fix is mechanical
Structural schematic diagram；
Fig. 3 is that CCD camera and loading are flat in the laser marking method provided in an embodiment of the present invention based on CCD navigator fix
The schematic diagram of platform correction；
Fig. 4 beats for acquisition positioning a kind of in the laser marking method provided in an embodiment of the present invention based on CCD navigator fix
Mark the navigation scheme of hum pattern；
Fig. 5 is that another obtain positions in the laser marking method provided in an embodiment of the present invention based on CCD navigator fix
The navigation scheme of mark hum pattern.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
FIG. 1 to FIG. 5 is please referred to, Fig. 1 is the laser marking method provided in an embodiment of the present invention based on CCD navigator fix
A kind of step flow diagram of specific embodiment；Fig. 2 is the laser provided in an embodiment of the present invention based on CCD navigator fix
Mark board mechanical structure schematic diagram in marking method；Fig. 3 is swashing based on CCD navigator fix provided in an embodiment of the present invention
The schematic diagram of CCD camera and article carrying platform correction in light marking method；Fig. 4 is provided in an embodiment of the present invention based on CCD navigation
A kind of navigation scheme obtaining positioning mark hum pattern in the laser marking method of positioning；Fig. 5 provides for the embodiment of the present invention
The laser marking method based on CCD navigator fix in another navigation scheme for obtaining positioning mark hum pattern.
In a specific embodiment, the laser marking method based on CCD navigator fix, comprising:
Step 1, CCD camera and article carrying platform are corrected, so that the pixel coordinate of the CCD camera and the loading
The coordinate system correlations of platform；Location navigation is carried out convenient for the later period.
Step 2, the CCD camera is corrected with galvanometer, so that the position of the position of the CCD camera and the galvanometer
It sets associated；
Step 3, the navigation for carrying out mark Sample location point and mark location point, generates the positioning mark of the mark sample
Hum pattern realizes the equivalent of the determination of position and coordinate between three by two kinds of above-mentioned corrections, and passes through step
Rapid 3, the navigation of mark Sample location point and mark location point is carried out, the position of mark point has been determined in galvanometer and CCD camera
It sets, generates the positioning mark hum pattern of the mark sample, this positioning mark hum pattern is similar to the positioning of existing sample
Mark information CAD diagram may be implemented galvanometer by the positioning mark hum pattern and be accurately positioned mark.
It is corrected respectively by CCD camera and article carrying platform, galvanometer, realizes that the pixel coordinate of CCD camera and loading are flat
The coordinate system correlations of platform, the position of galvanometer are associated, then carry out the navigation of mark Sample location point and mark location point, generate
The positioning mark hum pattern of mark sample, it is such positioning mark hum pattern due to similar sample positioning mark information CAD diagram,
Precise positioning mark under the real positioning mark information state there are currently no sample CAD diagram, improves existing laser marking machine
The use scope of platform.Simultaneously as without carrying out the hardware modification to existing laser marking board, use cost is lower.
Fig. 2 is mark board mechanical construction drawing used in the present invention, wherein 1 being X-axis, 2 being Y-axis, 3 be Z axis, 4 being Dali
Stone platform, 5 be article carrying platform, 6 be galvanometer head, 7 be camera.Mark sample is placed on article carrying platform during mark, Z axis
It is adjusted for laser spot, for camera for positioning, galvanometer head is used for laser marking, and X-axis drives article carrying platform to be transported with Y-axis
It is dynamic.
For the method for the coordinate system correlations between CCD camera and article carrying platform, in one embodiment, the step 1,
Include:
Uncalibrated image is placed in the CCD camera visual field；
Using the uncalibrated image as template, the uncalibrated image central point is captured；
The uncalibrated image is moved on into the lower right in the CCD camera visual field and center capture is carried out to uncalibrated image；
According to preset article carrying platform move distance, the mobile article carrying platform, and center is carried out to the uncalibrated image
It captures；
The coordinate system of the pixel coordinate system and the article carrying platform of the CCD camera is converted, realizes coordinate system
One.
The correction principle of camera and article carrying platform is as follows:
By taking the pixel of CCD camera is 5,000,000 pixels as an example, as shown in figure 3,5,000,000 camera resolutions are 2448*2048,
The pixel quantity for indicating every row is 2448, and the line number of pixel is 2048.If the pixel coordinate of A point is A (XA,YA), the picture of B point
Plain coordinate is B (XB,YB), the pixel coordinate of C point is C (XC,YC).Board coordinate corresponding to A point is A (X 'A,Y′A), B point institute
Corresponding board coordinate is B (X 'B,Y′B), board coordinate corresponding to C point is C (X 'C,Y′C).Pass through in two coordinate systems three
The coordinate pair of a point should can find out the one-to-one relationship of two coordinate systems, realize the unification of two coordinate systems.
The present invention is not specifically limited uncalibrated image, it is therefore an objective in the picture and board of CCD camera, pass through survey
The actual distance difference both being scheduled in respectively system, realizes the conversion of coordinate, the present invention for its shape and quantity not
It is specifically limited, the general uncalibrated image is point tag image or square indicia image.
And for the method for CCD camera and galvanometer, the present invention is not construed as limiting, in one embodiment, the step 2, comprising:
Correction paper is placed on the article carrying platform；It can be neglected due to correcting influence of the thickness of paper to entire laser marking
Slightly disregard, intend the process of laser marking using correction paper matrix, realization galvanometer is associated with CCD camera position.If mark object
With certain thickness, the height of galvanometer, CCD camera can be corrected automatically, compensate the thickness bring error.
The galvanometer makes a call to a spider A point by laser in the center of mark range on the correction paper, so
Cross crunode B and right side, which are beaten, by pre-determined distance in the left side of the point A afterwards beats spider C point by pre-determined distance；
The A point is moved in the CCD camera visual field, template is done to the A point；
The center of the A point, B point and C point is captured by the CCD camera respectively；
The camera position and the galvanometer position are associated.
In the present invention, the principle of CCD camera and galvanometer correction, in one embodiment, when galvanometer mark A point, is corresponding
Machine coordinates are A (XA,YA), cameras capture A dot center is that corresponding machine coordinates are A (X 'A,Y′A), it is sat by this two
Mark can find out the position relative relation (explanation: A (X ' herein between galvanometer and cameraA,Y′A) it is image center and A dot center
Coordinate when coincidence).By capture B dot center and C dot center it can be concluded that the angle between galvanometer coordinate system and lathe coordinate system
(ideally the angle between galvanometer coordinate system and lathe coordinate system is zero to degree, but because Automatic manual transmission and machine add the original of part
Because causing the angle between galvanometer coordinate system and lathe coordinate system to be not zero).
During practical laser mark, the navigation of mark Sample location point and mark location point refers to mark sample
It is shown in CCD camera image, similar to the overall picture of map, then determines anchor point and mark location point, that is, obtain
The hum pattern of mark, and according to the positioning mark information complexity of mark sample, in the present invention, the progresss mark sample is determined
The navigation in site and mark location point generates the positioning mark hum pattern of the mark sample, and generally manual navigation carries out institute
The navigation for stating mark Sample location point Yu the mark location point generates the positioning mark information or picture mosaic of the mark sample
Navigation picture carries out the navigation of the mark Sample location point Yu the mark location point, generates the positioning mark of the mark sample
Information.
That is manual navigation is generally used for the relatively simple situation of drawn a design product, picture mosaic navigation application in drawn a design product more
Complicated situation.
For manual navigation, it is generally used for the less situation of the mark point of mark sample, in one embodiment, such as Fig. 4
Shown, the manual navigation carries out the navigation of the mark Sample location point Yu the mark location point, generates the mark sample
The positioning mark hum pattern of product, comprising:
Determine that locating point position, the mobile article carrying platform make the CCD camera center and the mark Sample location point
M1 dot center be overlapped and click confirmation, mobile platform makes in the M2 point of the CCD camera center and the mark Sample location point
The heart, which is overlapped, clicks confirmation, and mobile platform makes image center be overlapped click confirmation with the center M3 of the mark Sample location point；
Determine that mark location, the mobile article carrying platform make the P1 point at the CCD camera center Yu the mark anchor point
Center is overlapped and clicks confirmation, and the mobile article carrying platform makes in the P2 point of the CCD camera center and the mark anchor point
The heart is overlapped and clicks confirmation；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
Confirmation is overlapped with the center of M1 point, M2 point and M3 point by the center of CCD camera, it is determined that the positioning of mark sample
Point, then by being overlapped confirmation with mark location point P1, P2, then regeneration positioning mark hum pattern, is believed using the positioning mark
Breath figure carries out mark operation.The confirmation of the anchor point of mark in the present invention, for determining placement location and the side of subsequent sample
To as benchmark, being inferred to need the coordinate of the location point of mark, realize the life of the positioning mark hum pattern of mark sample
At.
It should be pointed out that the present invention in for M1 point, M2 point and M3 point method for selecting without limitation, as long as can
Air exercise standard specimen product are positioned.
In one embodiment, the M1 point, M2 point, M3 point are located at the top of constituted isosceles right triangle
Point, i.e., using M2 point as the vertex of right angled triangle, M1M2 and M2M3 are two right-angle sides.
As long as guaranteeing that the accurate mark of laser can be realized in its product repeatability by type product same after above step, i.e.,
As long as identical product carries out a manual navigation.
And navigate for picture mosaic, it exactly obtains multiple image using repeatedly taking pictures and realizes, beat suitable for mark point is more
Standard specimen product, at this moment if using manual navigation mode, can it is extremely complex, mark efficiency position mark information acquisition the case where,
The picture mosaic navigation picture carries out the navigation of the mark Sample location point Yu the mark location point, generates the mark sample
Position mark hum pattern, comprising:
Measure the CCD camera field range；
The mobile article carrying platform, is located at the mark sample upper left corner in camera fields of view；
The mark sample size is set；
The article carrying platform is set after the CCD camera is taken pictures every time in the moving distance of X-direction and Y-direction；
Click the CCD camera take pictures generation picture and carry out picture mosaic；
It selective positioning point and is named in the picture mosaic, marking area is selected in the picture mosaic, and be named；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
In a specific embodiment, picture mosaic, which is navigated, includes:
Step 1: measurement CCD camera field range, CCD camera field range be 25mm*20mm (same board camera,
Camera fields of view range remains unchanged in the case that the hardware such as camera lens, adapter ring are constant)；
Step 2: movable object-carrying stage, is located at the mark sample upper left corner in camera fields of view, as shown in P1 in Fig. 5；
Step 3: mark sample size is arranged, mark sample is having a size of 110mm*50mm in Fig. 5；
Step 4: X-direction and Y-direction moving distance after platform is taken pictures every time is arranged, X-direction moving distance is in Fig. 5
23mm, Y-direction moving distance are 18mm；
Start picture mosaic step 5: clicking, board will take pictures for 15 times in Fig. 5, respectively P1~P15, Fig. 5 bend portion
It is divided into picture mosaic overlay region, because minimizing the area of picture mosaic overlay region when picture mosaic；
Step 6: selecting mark point in picture mosaic generated, it is respectively designated as M1, M2, M3；
Step 7: select marking area in picture mosaic generated, be respectively designated as P1, P2 ..., Pn；
Step 8: being to complete the navigation of mark Sample location point Yu mark location point by above step, that is, generate
The positioning mark hum pattern of sample, similar to the positioning mark CAD diagram of existing sample；
Step 9: Sample location point and platform coordinate are associated with, i.e. setting anchor point picture-taking position.
In the present invention, in order to guarantee during taking pictures, the area for not having omission was not photographed, adjacent picture
It must be overlapped, this overlapping refers to overlap with all adjacent pictures of surrounding.On the other hand, if overlapping region mistake
Greatly, it will cause waste, therefore can also minimize in picture mosaic the area of the overlapping region of picture, simultaneously because laser marking machine
Mobile accuracy it is very high, the overlapping widths of the general adjacent picture are 1mm~2mm.
It should be pointed out that the present invention is not specifically limited the overlapping widths of adjacent picture.
Due to mark location negligible amounts when, can be completed using manual navigation, and when there are many quantity of mark location,
It can be improved efficiency using picture mosaic navigation, picture used in picture mosaic navigation can be tens even several hundred pictures, in order to subtract
The setting of few parameter simplifies the processing step of mark, improves mark efficiency, the CCD camera take pictures every time after in X-direction or Y
The moving distance in direction is equal, the equal moving distance phase referred in the single direction of X-direction or Y-direction of moving distance here
Deng, because, it is general only to be moved in X-direction or Y-direction every time after CCD camera is taken pictures every time.
It should be pointed out that in the present invention, it can be and carry out row and take pictures, i.e., after the taking pictures of completion a line, i.e., in X-direction
After being moved to terminal, then the movement of a Y-direction being carried out, the X-direction for then carrying out another row is mobile, it is also possible to be arranged,
When taking pictures every time, limited carry out Y-direction is taken pictures, and from one end of the Y-direction of sample to the other end, then carries out X-direction
It is mobile, taking pictures for another column is carried out, the present invention is not specifically limited the shooting style of CCD camera, the imaging to CCD camera
Size and in the quantity of picture be not specifically limited.
As long as guaranteeing that the accurate mark of laser can be realized in its product repeatability by type product same after above step, i.e.,
As long as identical product carries out picture mosaic navigation.
The principle that picture mosaic is navigated in the present invention: by the correction of previous camera and platform, any pixel in camera fields of view
Coordinate points can be associated with corresponding platform coordinate.As shown in figure 5, platform coordinate when middle P1 takes pictures is (XP1,YP1), if
This platform coordinate value corresponds to the origin (0,0) of pixel coordinate in P1, then the pixel coordinate in P1 is with platform coordinate (XP1,YP1)
On the basis of be corresponding to it.And so on, pixel of the P1 into P15 can be associated by platform coordinate.Therefore picture mosaic
It is precisely fixed to realize that the CAD diagram similar to Sample location mark information can be generated by selection mark point and mark location afterwards
Position mark.
It should be pointed out that the present invention is not specifically limited CCD camera and limit of taking pictures, it can be according to different
The CCD camera of mark accuracy selection different accuracy.
In conclusion the laser marking method provided in an embodiment of the present invention based on CCD navigator fix, passes through CCD camera
It is corrected respectively with article carrying platform, galvanometer, realizes the pixel coordinate of CCD camera and the coordinate system correlations of article carrying platform, galvanometer
Position it is associated, then carry out the navigation of mark Sample location point and mark location point, the positioning mark of generation mark sample
Hum pattern, due to the positioning mark information CAD diagram of similar existing sample, realize is not having such positioning mark hum pattern
Precise positioning mark under the positioning mark information state of sample CAD diagram, improve existing laser marking board uses model
It encloses, simultaneously because without carrying out the hardware modification to existing laser marking board, use cost is lower.
The laser marking method provided by the present invention based on CCD navigator fix is described in detail above.Herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention.It should be pointed out that for those skilled in the art, not
, can be with several improvements and modifications are made to the present invention under the premise of being detached from the principle of the invention, these improvement and modification are also fallen into
In the protection scope of the claims in the present invention.
Claims (9)
1. a kind of laser marking method based on CCD navigator fix characterized by comprising
Step 1, CCD camera and article carrying platform are corrected, so that the pixel coordinate of the CCD camera and the article carrying platform
Coordinate system correlations；
Step 2, the CCD camera is corrected with galvanometer, so that the position phase of the position of the CCD camera and the galvanometer
Association；
Step 3, the navigation for carrying out mark Sample location point and mark location point, generates the positioning mark information of the mark sample
Figure；The step 1, comprising:
Uncalibrated image is placed in the CCD camera visual field；
Using the uncalibrated image as template, the uncalibrated image central point is captured；
The uncalibrated image is moved on into the lower right in the CCD camera visual field and center capture is carried out to uncalibrated image；
According to preset article carrying platform move distance, the mobile article carrying platform, and center capture is carried out to the uncalibrated image；
The coordinate system of the pixel coordinate system and the article carrying platform of the CCD camera is converted, realizes that coordinate system is unified.
2. the laser marking method as described in claim 1 based on CCD navigator fix, which is characterized in that the uncalibrated image is
Point tag image or square indicia image.
3. the laser marking method as described in claim 1 based on CCD navigator fix, which is characterized in that the step 2, comprising:
Correction paper is placed on the article carrying platform；
The galvanometer makes a call to a spider A point by laser in the center of mark range on the correction paper, then exists
The left side of the point A beats cross crunode B and right side by pre-determined distance and beats spider C point by pre-determined distance；
The A point is moved in the CCD camera visual field, template is done to the A point；
The center of the A point, B point and C point is captured by the CCD camera respectively；
The camera position and the galvanometer position are associated.
4. the laser marking method as described in claim 1 based on CCD navigator fix, which is characterized in that the progress mark sample
The navigation of product anchor point and mark location point generates the positioning mark hum pattern of the mark sample, carries out institute for manual navigation
The navigation for stating mark Sample location point Yu the mark location point generates the positioning mark hum pattern of the mark sample, or spells
Figure navigation picture carries out the navigation of the mark Sample location point Yu the mark location point, and the positioning for generating the mark sample is beaten
Mark hum pattern.
5. the laser marking method as claimed in claim 4 based on CCD navigator fix, which is characterized in that the manual navigation into
The navigation of row the mark Sample location point and the mark location point, generates the positioning mark hum pattern of the mark sample,
Include:
Determine that locating point position, the mobile article carrying platform make the M1 at the CCD camera center Yu the mark Sample location point
Dot center, which is overlapped, clicks confirmation, and mobile platform makes the M2 dot center of the CCD camera center and mark Sample location point weight
Chalaza hits confirmation, and mobile platform makes image center be overlapped click confirmation with the center M3 of the mark Sample location point；
Determine that mark location, the mobile article carrying platform make the P1 dot center at the CCD camera center Yu the mark location point
It is overlapped and clicks confirmation, the mobile article carrying platform makes the P2 dot center of the CCD camera center and mark location point weight
Merge and clicks confirmation；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
6. the laser marking method as claimed in claim 5 based on CCD navigator fix, which is characterized in that the M1 point, the M2
Point, M3 point are located at the vertex of constituted isosceles right triangle.
7. the laser marking method as claimed in claim 6 based on CCD navigator fix, which is characterized in that the picture mosaic navigation picture
The navigation for carrying out the mark Sample location point Yu the mark location point generates the positioning mark information of the mark sample
Figure, comprising:
Measure the CCD camera field range；
The mobile article carrying platform, is located at the mark sample upper left corner in camera fields of view；
The mark sample size is set；
The article carrying platform is set after the CCD camera is taken pictures every time in the moving distance of X-direction and Y-direction；
Click the CCD camera take pictures generation picture and carry out picture mosaic；
It selective positioning point and is named in the picture mosaic, marking area is selected in the picture mosaic, and be named；
Generate the positioning mark hum pattern of the mark sample；
Carry out being associated with for the Sample location point and the article carrying platform coordinate.
8. the laser marking method as claimed in claim 7 based on CCD navigator fix, which is characterized in that the adjacent picture
Overlapping widths are 1mm~2mm.
9. the laser marking method as claimed in claim 7 based on CCD navigator fix, which is characterized in that the CCD camera is each
It is equal in the moving distance of X-direction or Y-direction after taking pictures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418332.5A CN107225882B (en) | 2017-06-06 | 2017-06-06 | A kind of laser marking method based on CCD navigator fix |
Applications Claiming Priority (1)
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| CN109570749A (en) * | 2018-10-09 | 2019-04-05 | 大族激光科技产业集团股份有限公司 | A method of improving laser marking system adjustment accuracy |
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| CN107953681A (en) * | 2017-11-20 | 2018-04-24 | 苏州猎奇智能设备有限公司 | Vision guide marking machine and vision guide marking method |
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| CN112172338B (en) * | 2020-09-24 | 2022-03-15 | 山西潞安太阳能科技有限责任公司 | Automatic positioning system for silk-screen printing Mark points |
| CN115415677B (en) * | 2022-11-02 | 2023-04-14 | 苏州科韵激光科技有限公司 | Laser marking method, laser marking apparatus, laser marking control system, and computer-readable storage medium |
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