CN107672335B - Laser marking method, laser marking machine and storage medium - Google Patents
Laser marking method, laser marking machine and storage medium Download PDFInfo
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- CN107672335B CN107672335B CN201710903378.6A CN201710903378A CN107672335B CN 107672335 B CN107672335 B CN 107672335B CN 201710903378 A CN201710903378 A CN 201710903378A CN 107672335 B CN107672335 B CN 107672335B
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000010330 laser marking Methods 0.000 title claims abstract description 61
- 239000003550 marker Substances 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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Classifications
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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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- 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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- 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
- B41M5/245—Electroerosion or spark recording
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention discloses a laser marking method, which comprises the following steps: acquiring a target mark image, and determining mark content according to the target mark image, wherein the mark content comprises a point mark and/or a line segment mark; determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position; controlling the vibrating mirror to move on the marking track at a constant speed at a preset speed; when the galvanometer moves to the galvanometer marking position, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image. The invention can improve the marking efficiency. The invention also provides a laser marking machine and a computer readable storage medium.
Description
Technical Field
The present invention relates to the field of laser marking technology, and in particular, to a laser marking method, a laser marking machine using the laser marking method, and a storage medium storing the laser marking program.
Background
The laser marking method is to make laser beam to make the surface layer material evaporate to expose deep layer material, or to make the surface layer material change chemically and physically to mark, or to burn out some material by means of light energy to show the required etched pattern and text. The laser marking method is widely applied to industries such as clothing accessories, medical packaging, wine packaging, building ceramics, beverage packaging, fabric cutting, rubber products, shell nameplates, art gifts, electronic elements, leather, cables, pipes, food packaging and the like.
In the existing laser marking method, during the marking process, the vibrating mirror is accelerated for a period of time when started, and then is decelerated for marking when approaching to the marking position, and then is accelerated to the next marking position. This approach reduces the speed and efficiency of marking by the vibrating mirror experiencing too many accelerations and decelerations during marking.
Disclosure of Invention
The invention mainly aims to provide a laser marking method, a laser marking machine and a storage medium, and aims to solve the problem that each marking process needs to undergo deceleration and acceleration, and the marking efficiency is reduced.
In order to achieve the above object, the present invention provides a laser marking method, which includes the steps of:
acquiring a target mark image, and determining mark content according to the target mark image, wherein the mark content comprises a point mark and/or a line segment mark;
determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position;
controlling the vibrating mirror to move on the marking track at a constant speed at a preset speed;
when the galvanometer moves to the galvanometer marking position, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image.
In a possible embodiment, the vibrating mirror motion track further comprises a guiding track, the marking track comprises a first marking sub-track and a second marking sub-track, and the first marking sub-track and the second marking sub-track are connected through the guiding track; the step of controlling the galvanometer to move at a constant speed on the marking track at a preset speed comprises the following steps:
controlling the vibrating mirror to move at a constant speed on a first mark sub-track of the vibrating mirror movement track at the preset speed;
when the vibrating mirror is switched to the guiding track through a first marking sub-track of the vibrating mirror movement track, controlling the vibrating mirror to move on the guiding track;
when the vibrating mirror passes through the guiding track of the vibrating mirror movement track to the second marking sub-track, the vibrating mirror is controlled to move on the second marking sub-track at a uniform speed at the preset speed.
In a possible embodiment, before the galvanometer starts to enter the guiding track, the first marking sub-track or the second marking sub-track, the laser is started to have a light-on delay operation; operating when the laser is on Guan Guangyan before the galvanometer exits the guide track, the first marker sub-track, or the second marker sub-track; wherein,,
the time of the laser on Guan Guangyan operation before the galvanometer leaves the first marking sub-track at least partially coincides with the time of the laser on light on delayed operation before the galvanometer enters the guiding track; and/or
The time of operation of the laser when the laser is subjected to on Guan Guangyan before the galvanometer leaves the guide track at least partially coincides with the time of on-delay operation of the laser before the galvanometer enters the second marking sub-track.
In a possible embodiment, the step of controlling the galvanometer to move at a constant speed on the marking track includes:
and sending position information to the vibrating mirror at intervals of preset time to control the vibrating mirror to move at a uniform speed on the marking track according to preset speed.
In a possible embodiment, the marking content includes a point mark and the line segment mark, and the step of determining an image marking position according to the marking content and generating a vibrating mirror motion track according to the image marking position includes:
determining a point mark position according to the point mark;
determining a line segment starting point position and a line segment ending point position according to the line segment mark;
and generating a vibrating mirror motion track according to the point mark position, the line segment starting point position and the line segment ending point position.
In a possible embodiment, the step of generating a vibrating mirror motion track according to the image marking position includes:
and optimizing a preset basic path according to the image marking position to generate an optimized vibrating mirror movement track.
In a possible embodiment, the step of obtaining the target mark image and determining the mark content according to the target mark image includes:
acquiring a target mark image, and determining a mark contour and contour mark content corresponding to the mark contour according to the target mark image;
and determining filling mark content in the mark outline.
In a possible embodiment, the target mark image is any one of a two-dimensional code, a bar code, a vector file and a bitmap.
The invention also provides a laser marking machine comprising a board card, a laser, a galvanometer, a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein,
the laser is used for emitting light beams to the vibrating mirror;
the galvanometer is used for reflecting the light beam emitted by the laser to the image marking position so as to form a mark at the image marking position;
the computer program, when executed by the processor, implements the steps of the laser marking method as described above.
The present invention also provides a computer-readable storage medium having stored thereon a laser marking program which, when executed by a processor, implements the steps of the laser marking method as described above.
The method comprises the steps of obtaining a target mark image, and determining mark content according to the target mark image, wherein the mark content comprises point marks and/or line segment marks; determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position; controlling the vibrating mirror to move on the marking track at a constant speed at a preset speed; when the galvanometer moves to the galvanometer marking position, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image. Therefore, the vibrating mirror can move at a uniform speed on the marking track without undergoing acceleration and deceleration once again at each target marking point, so that the marking efficiency is improved, and the whole marking speed can be increased by setting the uniform speed of the vibrating mirror on the marking track to be high.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a laser marking method according to the present invention;
FIG. 2 is a schematic flow chart of a step S10 in a first embodiment of the laser marking method of the present invention;
FIG. 3 is a schematic flow chart of step S20 in the first embodiment of the laser marking method of the present invention; the method comprises the steps of carrying out a first treatment on the surface of the
FIG. 4 is a schematic view of a marking area of a laser marking machine according to a first embodiment of the laser marking method of the present invention;
FIG. 5 is a schematic diagram of a vibrating mirror motion trajectory in a second embodiment of the laser marking method of the present invention;
FIG. 6 is a schematic view showing a sub-process of step S30 in a second embodiment of the laser marking method of the present invention;
FIG. 7 is a schematic diagram showing the time coordinates of the on-time delay and Guan Guangyan of the third embodiment of the laser marking method according to the present invention;
FIG. 8 is a schematic flow chart of a step S30 in a fourth embodiment of the laser marking method according to the present invention;
FIG. 9 is a schematic flow chart of a step S20 in a fifth embodiment of the laser marking method according to the present invention;
FIG. 10a is a schematic diagram of a target mark image according to a fifth embodiment of the laser marking method of the present invention;
FIG. 10b is a schematic diagram of a basic path corresponding to a target mark image according to a fifth embodiment of the laser marking method of the present invention;
FIG. 10c is a schematic diagram of the vibrating mirror motion profile after optimizing the base path of FIG. 10 b;
fig. 11 is a schematic diagram of a system structure of a first embodiment of the laser marking machine according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a laser marking method, which mainly solves the problem of low marking efficiency caused by the mode that in the marking process of the traditional laser marking machine, a vibrating mirror is accelerated for a period of time when started, then is decelerated for marking when approaching to a marking position, and then is accelerated to the next marking position.
Referring to fig. 1, in a first embodiment of the laser marking method, the laser marking method includes the steps of:
step S10, a target mark image is obtained, and mark content is determined according to the target mark image, wherein the mark content comprises point marks and/or line segment marks;
the laser marking machine comprises a board card, a laser, a vibrating mirror, a memory and a processor. In this embodiment, the processor is a terminal device having independent data processing capability, for example: the terminal equipment can acquire the image which the user wants to mark through a network, an external storage device and the like, the user can take the acquired image as a target mark image without modification, the image can be cut after the image is acquired, or parameters such as the size, the proportion and the like of the image are set, and finally the modified image is taken as the target mark image. The target mark image comprises, but is not limited to, two-dimensional codes, bar codes, vector files, bitmaps, characters and the like.
Referring to fig. 2 in combination, step S10 includes:
step S11, obtaining a target mark image, and determining a mark contour and contour mark content corresponding to the mark contour according to the target mark image;
after the target mark image is obtained, image processing is carried out on the target mark image, a mark contour is determined, line analysis is carried out on the mark contour, contour mark content required by marking the mark contour is determined, and the contour mark content comprises point marks and/or line segment marks.
And step S12, determining filling mark content in the mark outline.
After the marker profile is determined, filling marker content in the profile can be obtained according to the processing of the target marker image, wherein the filling marker content also comprises point markers and/or line segment markers. It should be noted that not all of the mark contours need to be filled, nor do all of the areas within the mark contours need to be filled, the filling mark content is completely dependent on the target mark image, and different target mark images have different filling results.
Step S20, determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position;
after determining the marking content according to the target marking image, the marking content needs to be corresponding to the position of the marking area, namely, the position of each point mark in the marking content in the marking area and/or the position of each line segment mark in the marking area are determined.
Referring to fig. 3 in combination, in this embodiment, the marking content includes a point mark and a line mark, and the step S20 includes:
step S21, determining the position of the point mark according to the point mark;
step S22, determining a line segment start point mark position and a line segment end point mark position according to the line segment mark;
and S23, generating a vibrating mirror motion track according to the point mark position, the line segment start point mark position and the line segment end point mark position.
The point mark position, the line segment start point mark position, and the line segment end point mark position constitute an image mark position, and are positions on the mark region. The image mark positions and the galvanometer mark positions are in one-to-one correspondence, so that the galvanometer mark positions can be directly determined after the image mark positions are determined. And then generating a vibrating mirror motion track according to all vibrating mirror marking positions of the target marking image.
Referring to fig. 4 in combination, the present embodiment is described taking the example that the marking area is a coordinate plane, but it should not be understood that the marking area is only a coordinate plane, and any other form capable of representing the position falls within the protection scope of the present invention. The marking area of the laser marking machine is a coordinate plane with the X axis and the Y axis being mutually perpendicular, and each point on the coordinate plane is provided with coordinate values corresponding to the X axis and the Y axis, so that before marking out the target marking image, the position coordinates of each point mark and/or each line segment mark corresponding to the coordinate plane are required to be determined, wherein the point mark corresponds to the position coordinates of the point, and the line segment mark corresponds to the position coordinates of the line segment starting point and the line segment ending point.
Step S30, controlling the vibrating mirror to move on the marked track at a constant speed at a preset speed;
the uniform motion is convenient for controlling the time of the vibrating mirror motion, and the vibrating mirror does not need to undergo the process of acceleration and deceleration once when undergoing the marking position of each vibrating mirror in the marking process, so that the marking efficiency is improved. In order to further increase the speed of marking. The preset speed of the uniform motion of the vibrating mirror can be adjusted, the faster the preset speed is, the shorter the vibrating mirror passes through the marking track, and the shorter the laser marking machine marks the target marking image. Under the condition that the vibrating mirror moves at a high speed, the vibrating mirror is subjected to multiple acceleration and deceleration processes, so that the moving time of the vibrating mirror is prolonged, and the marking efficiency is reduced.
And S40, when the galvanometer moves to the marking position of the galvanometer, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image.
The formation of a mark at an image mark location is understood to mean that when the galvanometer reaches the galvanometer mark location, the beam of light emitted by the laser passes through the optical effect of the galvanometer to form a mark at the image mark location, and when the galvanometer leaves the galvanometer mark location, the laser is turned off and no mark is formed at the non-image mark location. In this embodiment, the data size of the light beam emitted by the control laser is very small, so that the possibility of marking when the galvanometer runs at a high constant speed can be ensured, and the data size of the light beam emitted by the control laser is specifically 1bit.
The method comprises the steps of obtaining a target mark image, and determining mark content according to the target mark image, wherein the mark content comprises point marks and/or line segment marks; determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position; controlling the vibrating mirror to move on the marking track at a constant speed at a preset speed; when the galvanometer moves to the galvanometer marking position, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image. Therefore, the vibrating mirror can move at a uniform speed on the marking track without undergoing acceleration and deceleration once again at each target marking point, so that the marking efficiency is improved, and the whole marking speed can be increased by setting the uniform speed of the vibrating mirror on the marking track to be high.
Further, referring to fig. 5 and fig. 6 in combination, in a second embodiment of the laser marking method according to the present invention, the galvanometer motion trajectory further includes a guiding trajectory, and the marking trajectory includes a plurality of sections of marking sub-trajectories, including a first marking sub-trajectory and a second marking sub-trajectory. Guide tracks are arranged among the multiple sections of mark sub-tracks, and the first mark sub-track and the second mark sub-track are connected through the guide tracks; step S30 includes:
step S31, controlling the galvanometer to move at a uniform speed on a first mark sub-track of the motion track of the galvanometer at the preset speed;
step S32, when the vibrating mirror is switched to the guide track through a first mark sub-track of the vibrating mirror movement track, controlling the vibrating mirror to move on the guide track;
and step S33, when the galvanometer passes through the guiding track of the motion track of the galvanometer to the second marking sub-track, controlling the galvanometer to move on the second marking sub-track at a uniform speed at the preset speed.
In this embodiment, a guiding track is set between the multiple sections of marking sub-tracks, the guiding track connects two adjacent marking sub-tracks, and the vibrating mirror enters the guiding track from the tail end of one section of marking sub-track, then undergoes speed change and direction change in the guiding track, and then enters the start end of the next section of marking sub-track.
The vibrating mirror cannot immediately continue to move at high uniform speed on the next section of marking sub-track after moving at high uniform speed on the first section of marking sub-track, so that speed change and direction change are required to be carried out for a period of time. The inertia is large after the vibrating mirror runs at a high speed, and the movement track of the vibrating mirror is easy to deform in the speed changing and direction changing process, so that the guide track is arranged between two adjacent sections of marking sub-tracks, the stability of the movement track of the vibrating mirror in the speed changing and direction changing process is ensured, and the vibrating mirror can be accurately moved to the beginning end of the next section of marking sub-track.
Further, referring to fig. 7 in combination, in a third embodiment of the laser marking method according to the present invention, the laser is turned on with an on-delay operation before the galvanometer starts to enter each track (the guiding track, the first marking sub-track or the second marking sub-track), and is turned on with Guan Guangyan before the galvanometer leaves each track (the guiding track, the first marking sub-track or the second marking sub-track); wherein,,
the time of the laser on Guan Guangyan operation before the galvanometer leaves the first marking sub-track at least partially coincides with the time of the laser on light on delayed operation before the galvanometer enters the guiding track; and/or
The time of operation of the laser on Guan Guangyan before the galvanometer leaves the guide track at least partially coincides with the time of operation of the laser on light delay before the galvanometer enters the second marking sub-track.
In the prior art, the laser is operated when Guan Guangyan is started before the vibrating mirror leaves one section of track, and the laser can start the light-on delay operation started before the vibrating mirror enters the next section of track after waiting for finishing the light-off delay operation. Therefore, the two tracks need to be marked after a single on-delay operation and a single off-delay operation. In this embodiment, the time of controlling the on-delay operation of the laser is at least partially overlapped with the time of Guan Guangyan, so that the two tracks in this embodiment experience an on-delay and an off-delay, but consume less time than the two delay operations in the prior art. Further, in this embodiment, the time of the light-on delay operation is equal to the time of the Guan Guangyan operation, and the time of the light-on delay operation of the laser is completely coincident with the time of the Guan Guangyan operation, so that only one delay operation is consumed when two delay operations are performed between the two tracks.
Further, referring to fig. 8 in combination, based on the above embodiment of the laser marking method of the present invention, in a fourth embodiment of the laser marking method of the present invention, step S30 includes:
and step S34, sending position information to the vibrating mirror at intervals of preset time to control the vibrating mirror to move at a uniform speed on the marking track at preset speed.
The controller can send position information to the vibrating mirror every preset time, the vibrating mirror moves according to the new position information, and errors between the position information and the actual position of the vibrating mirror can be ignored because the preset time of the intervals between the position information is small, so that uniform movement of the vibrating mirror is realized. In the present embodiment, only one method capable of controlling the uniform motion of the vibrating mirror is listed, but the present invention should not be limited thereto, and any other method capable of controlling the uniform motion of the vibrating mirror falls within the scope of the present invention.
Further, in other embodiments of the present invention, the implementation step S40 may be further performed by:
s41, calculating the marking time of the vibrating mirror reaching the marking position of the vibrating mirror according to the preset speed of the vibrating mirror and the marking position;
under the condition that the movement track of the vibrating mirror is determined, the time required by the vibrating mirror from the starting point to each vibrating mirror marking position can be calculated through the preset speed of the vibrating mirror and the marking positions, and the time required by the vibrating mirror from the starting point to each vibrating mirror marking position is the marking time corresponding to the vibrating mirror marking position.
Step S42, emitting a light beam to the corresponding marking position at the marking time control laser to form a mark at the corresponding image marking position, thereby obtaining the target marking image.
And when the vibrating mirror reaches the vibrating mirror marking position at the marking time, controlling the laser to emit light beams to the vibrating mirror marking position at the corresponding marking time so as to form marks at the corresponding image marking position, and obtaining the target marking image after multiple times.
In this embodiment, the marking time of each image marking position is calculated according to the preset speed and the preset marking position, and then the marking time controls the laser to emit a light beam from the corresponding vibrating mirror marking position, so that the vibrating mirror can perform uniform motion on the marking track and simultaneously complete reflection of the light beam and marking of the image marking position, thereby ensuring rapid marking completion.
Further, referring to fig. 9 in combination, based on the above embodiment of the laser marking method of the present invention, in a fifth embodiment of the laser marking method of the present invention, step S20 includes:
step S24, determining the image marking position according to the marking content;
and S25, optimizing a preset basic path according to the image marking position, and generating an optimized vibrating mirror movement track.
The vibrating mirror moves on the basic path to mark each position in the marking area, and unnecessary movement paths of the vibrating mirror can be reduced by optimizing the basic path, so that the efficiency of marking the target marking image by the laser marking machine is improved, and the marking speed of the target marking image is accelerated.
Referring to fig. 10a, fig. 10b, and fig. 10c together, when the right end portions of the third row and the fourth row have no image marking positions, the paths of the galvanometer in the third row to the fourth row are optimized, so that the motion track of the galvanometer in the position without the image marking is reduced, and the efficiency and the speed of marking the target marking image by the laser marking machine are improved.
The invention also provides an embodiment of the laser marking machine.
Referring to fig. 11, in a first embodiment of the laser marking machine of the present invention, the laser marking machine 200 includes a board 210, a laser 220, a galvanometer 230, a memory 240, a processor 250, and a computer program stored on the memory 240 and executable on the processor 250, wherein,
the laser 220 is configured to emit a light beam to the galvanometer;
the galvanometer 230 is configured to reflect the light beam emitted by the laser to an image marking position to form a mark at the image marking position;
the steps of any of the first to fifth embodiments of the laser marking method described above are implemented when the computer program is executed by the processor 250, and are not described herein.
Embodiments of a computer-readable storage medium are also provided.
In a first embodiment of a computer readable storage medium of the present invention, a laser marking program is stored on the computer readable storage medium, and the laser marking program when executed by a processor implements the steps of any one of the first embodiment to the fifth embodiment of the laser marking method described above, which are not described herein again.
It should also be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (7)
1. A laser marking method, characterized in that the laser marking method comprises the steps of:
acquiring a target mark image, and determining mark content according to the target mark image, wherein the mark content comprises a point mark and/or a line segment mark;
determining an image marking position according to the marking content, and generating a galvanometer movement track according to the image marking position, wherein the galvanometer movement track comprises a marking track in a marking area, and the marking track comprises a galvanometer marking position corresponding to the image marking position;
controlling the vibrating mirror to move on the marking track at a constant speed at a preset speed;
when the galvanometer moves to the galvanometer marking position, controlling a laser to emit a light beam to the galvanometer so as to form a mark at the image marking position, and further obtaining the target marking image;
the step of generating the vibrating mirror motion track according to the image marking position comprises the following steps:
optimizing a preset basic path according to the image marking position, and generating an optimized vibrating mirror movement track so as to reduce the movement track of the vibrating mirror movement at the position without the image marking;
the vibrating mirror motion track further comprises a guide track, the marking track comprises a first marking sub-track and a second marking sub-track, the first marking sub-track and the second marking sub-track are connected through the guide track, and after entering the guide track from the tail end of the first marking sub-track, the vibrating mirror enters the beginning end of the second marking sub-track after undergoing speed change and direction change in the guide track;
the step of controlling the galvanometer to move at a constant speed on the marking track at a preset speed comprises the following steps:
controlling the vibrating mirror to move at a constant speed on a first mark sub-track of the vibrating mirror movement track at the preset speed;
when the vibrating mirror is switched to the guiding track through a first marking sub-track of the vibrating mirror movement track, controlling the vibrating mirror to move on the guiding track;
when the vibrating mirror passes through the guiding track of the vibrating mirror movement track to the second marking sub-track, controlling the vibrating mirror to move on the second marking sub-track at a uniform speed at the preset speed;
before the galvanometer starts to enter the guide track, the first marking sub-track or the second marking sub-track, the laser is started to have a light-on delay operation; operating when the laser is on Guan Guangyan before the galvanometer exits the guide track, the first marker sub-track, or the second marker sub-track; wherein,,
the time of the laser on Guan Guangyan operation before the galvanometer leaves the first marking sub-track is completely coincident with the time of the laser on light on delayed operation before the galvanometer enters the guiding track; and/or
The time of the laser operation when the laser is subjected to opening Guan Guangyan before the galvanometer leaves the guide track is completely coincident with the time of the laser opening light delay operation before the galvanometer enters the second marking sub-track;
wherein the time of the light-on delay operation is equal to the time of the Guan Guangyan time operation.
2. The laser marking method according to claim 1, wherein the step of controlling the galvanometer to move at a constant speed on the marking trajectory comprises:
and sending position information to the vibrating mirror at intervals of preset time to control the vibrating mirror to move at a uniform speed on the marking track according to preset speed.
3. The laser marking method according to claim 1, wherein the marking content includes a point mark and the line segment mark, and the step of determining an image marking position based on the marking content and generating a galvanometer movement trajectory based on the image marking position includes:
determining a point mark position according to the point mark;
determining a line segment starting point mark position and a line segment ending point mark position according to the line segment mark;
and generating a vibrating mirror motion track according to the point mark position, the line segment start point mark position and the line segment end point mark position.
4. A laser marking method as claimed in any one of claims 1 to 3 wherein the step of obtaining a target marking image and determining marking content from the target marking image comprises:
acquiring a target mark image, and determining a mark contour and contour mark content corresponding to the mark contour according to the target mark image;
and determining filling mark content in the mark outline.
5. The laser marking method according to any one of claims 1 to 3, wherein the target marking image is any one of a two-dimensional code, a bar code, a vector file, and a bitmap.
6. A laser marking machine is characterized by comprising a board card, a laser, a vibrating mirror, a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein,
the laser is used for emitting light beams to the vibrating mirror;
the galvanometer is used for reflecting the light beam emitted by the laser to the image marking position so as to form a mark at the image marking position;
the computer program, when executed by the processor, implements the steps of the laser marking method as claimed in any one of claims 1-5.
7. A computer-readable storage medium, on which a laser marking program is stored, which, when executed by a processor, implements the steps of the laser marking method according to any one of claims 1-5.
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| CN108161241A (en) * | 2018-02-26 | 2018-06-15 | 长沙八思量信息技术有限公司 | Laser marking machine control method, device and readable storage medium storing program for executing |
| CN108581212A (en) * | 2018-04-23 | 2018-09-28 | 长沙八思量信息技术有限公司 | Fill method, device, equipment and the readable storage medium storing program for executing of laser marking |
| CN108961359B (en) * | 2018-05-17 | 2022-06-14 | 长沙八思量信息技术有限公司 | Laser marking system, filling method of closed graph of laser marking system and storage medium |
| CN109175716B (en) * | 2018-10-12 | 2021-04-13 | 常州英诺激光科技有限公司 | Laser marking control method and device, computer equipment and storage medium |
| CN110125550A (en) * | 2019-05-16 | 2019-08-16 | 沈阳飞机工业（集团）有限公司 | A method of it is mended with laser marking machine and carves small-shape thread cast-off |
| CN110404888A (en) * | 2019-08-16 | 2019-11-05 | 深圳泰德激光科技有限公司 | Control method, laser cleaning equipment and the storage medium of laser cleaning equipment |
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