CN108115288B - Method and device for marking bitmap on cylindrical workpiece - Google Patents
Method and device for marking bitmap on cylindrical workpiece Download PDFInfo
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- CN108115288B CN108115288B CN201711492167.4A CN201711492167A CN108115288B CN 108115288 B CN108115288 B CN 108115288B CN 201711492167 A CN201711492167 A CN 201711492167A CN 108115288 B CN108115288 B CN 108115288B
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0823—Devices involving rotation of the workpiece
-
- 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
Abstract
The invention relates to a method and a device for marking a bitmap on a cylindrical workpiece. When the method for marking the bitmap on the cylindrical workpiece is used for marking the cylindrical workpiece, the bitmap can be directly guided into marking software, the dot matrix marking can be carried out on the surface of the cylindrical workpiece through the rotation of the cylindrical workpiece and the scanning of the galvanometer module along the Y axis, the bitmap does not need to be converted into a vector diagram, the complexity of the marking process is reduced, and the graph is not easy to distort. Meanwhile, the rotary motion of the cylindrical workpiece is continuous, the marking action of the galvanometer module and the rotation of the cylindrical workpiece are synchronously carried out, so that the marking efficiency is improved to a greater extent, patterns obtained by marking are not spliced, and a good shading effect is achieved.
Description
Technical Field
The invention relates to the technical field of laser marking, in particular to a method and a device for marking a bitmap on a cylindrical workpiece.
Background
There are two main types of graphics formats used for laser marking, one being vector graphics and the other being bitmap. The vector diagram is a graph drawn according to geometric characteristics, is a graph facing objects such as points, lines, rectangles, curves, characters and the like, each object is an entity and has attributes such as color, size, contour line, shape, position and the like, each object is combined, color-filled and typeset to obtain a pattern, when the vector diagram is enlarged or reduced, the graph is not distorted, blurred or deformed, the edge is smooth, and no sawtooth phenomenon exists, so that when the vector diagram is used for marking, the vector diagram can be divided into a plurality of objects, and then each object is marked. The bitmap is also called a dot matrix chart and is formed by arranging a plurality of pixel points with different colors, when the bitmap is amplified to a certain degree, the pixel points of each square of an image can be seen, the effect of the bitmap is clear, the number of the formed pixel points is large, and rich color tones and color transitions are represented, so that the bitmap cannot be segmented, and the bitmap is required to be taken as a whole when being marked.
Based on the characteristic that the bitmap cannot be cut, when the laser instrument is used for marking the bitmap, the marking operation can be carried out only on a plane by taking the bitmap as an integral drawing file. If a bitmap needs to be marked on a cylindrical workpiece, the bitmap cannot be directly marked, after the bitmap is converted into a vector diagram through software, a rotating workpiece is cut into multiple stations at equal angles according to a certain angle, the vector diagram obtained through conversion is correspondingly cut into multiple drawing files, each station corresponds to one drawing file, a motor stops after moving to one station, the current corresponding drawing file is marked in a planar marking mode, and after the multiple stations are marked one by one, a complete marked graph is finally spliced. Therefore, when the bitmap is marked on the cylindrical workpiece, the bitmap needs to be converted into a vector diagram and then marked, which not only increases the complexity of the marking process, but also causes the loss of the color tone and color transition of the bitmap after the graphic conversion, thereby causing the distortion of the marked graphic.
Disclosure of Invention
Accordingly, there is a need for a method and apparatus for marking a bitmap on a cylindrical workpiece that is simple in the marking process and less prone to distortion of the pattern.
A method of marking a bitmap on a cylindrical workpiece, comprising the steps of:
setting an X axis and a Y axis of a laser coordinate system;
the axis of the cylindrical workpiece is coincident with the Y axis;
adjusting the laser focus at the circumferential vertex of the cylindrical workpiece;
importing a bitmap to be marked into marking software, and setting marking parameters;
the cylindrical workpiece is rotated about the Y-axis as a rotation axis, and the laser beam is scanned along the Y-axis to mark the surface of the cylindrical workpiece.
When the method for marking the bitmap on the cylindrical workpiece is used for marking the cylindrical workpiece, the bitmap can be directly led into marking software, dot matrix marking can be carried out on the surface of the cylindrical workpiece through rotation of the cylindrical workpiece and scanning of the galvanometer module along the Y axis, the bitmap does not need to be converted into a vector diagram, the complexity of a marking process is reduced, and the diagram is not easy to distort. Meanwhile, the rotary motion of the cylindrical workpiece is continuous, the marking action of the galvanometer module and the rotation of the cylindrical workpiece are synchronously carried out, so that the marking efficiency is improved to a greater extent, patterns obtained by marking are not spliced, and a good shading effect is achieved.
In one embodiment, in the step of rotating the cylindrical workpiece around the Y-axis, the laser beam is scanned along the Y-axis to mark the surface of the cylindrical workpiece,
within a preset time, if the rotation of the cylindrical workpiece can respond timely, the X galvanometer is static, and the Y galvanometer scans along the Y axis; alternatively, the first and second electrodes may be,
if the rotation response of the cylindrical workpiece is delayed within a preset time, the X galvanometer scans along the direction opposite to the rotation direction of the cylindrical workpiece, and the Y galvanometer scans along the Y axis.
In one embodiment, when the X-ray galvanometer scans in the direction opposite to the rotating direction of the cylindrical workpiece, the moving path of the X-ray galvanometer along the circumferential direction of the cylindrical workpiece in the dead-beat time is equal to the circumferential rotating path of the cylindrical workpiece in the marking time.
In one embodiment, the step of coinciding the axis of the cylindrical workpiece with the Y-axis further comprises:
installing a rotating motor, and enabling a rotating axis of the rotating motor to be superposed with a Y axis of a laser coordinate system;
the cylindrical workpiece is clamped on the rotating motor, and the axis of the cylindrical workpiece is overlapped with the rotating axis of the rotating motor.
In one embodiment, the step of making the axis of the cylindrical workpiece coincide with the Y-axis further includes the steps of turning off the laser marking device, removing the cylindrical workpiece, and cleaning the cylindrical workpiece.
An apparatus for marking a bitmap on a cylindrical workpiece, comprising:
the device comprises a workbench, a laser positioning device and a control device, wherein the workbench is used for supporting a cylindrical workpiece, and the cylindrical workpiece can rotate relative to the workbench by taking a Y axis of a laser coordinate system set on the workbench as a rotating shaft;
a laser for generating a laser beam;
an optical focusing module capable of focusing the laser beam to obtain a laser spot;
the galvanometer module can deflect the laser beam to enable the laser spot to move along a preset path;
the information storage module is used for storing bitmap information and marking parameters; and
the driving module is connected with the information storage module and the mirror vibration module, drives the mirror vibration module to move, and enables the laser beam to mark the cylindrical workpiece along a preset path.
In one embodiment, the laser machining device further comprises a rotating motor, the rotating motor is mounted on the workbench, the rotating axis of the rotating motor coincides with the Y axis of the laser coordinate system, the cylindrical workpiece is clamped on the rotating motor, and the axis of the cylindrical workpiece coincides with the rotating axis of the rotating motor.
In one embodiment, the galvanometer module comprises an X galvanometer and a Y galvanometer, wherein the X galvanometer is static or scans along the direction opposite to the rotating direction of the cylindrical workpiece, and the Y galvanometer scans along the Y axis.
In one embodiment, the laser is an infrared fiber laser.
In one embodiment, the pulse wavelength of the laser is 1055 nm-1075 nm, the pulse width of the laser is 3-200 ns, and the average power of the laser is 20W.
Drawings
FIG. 1 is a flow chart of a method for marking a bitmap on a cylindrical workpiece according to one embodiment;
fig. 2 is a schematic structural diagram of an apparatus for marking a bitmap on a cylindrical workpiece according to an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a method for marking a bitmap on a cylindrical workpiece according to an embodiment of the present invention includes the following steps.
S100, setting an X axis and a Y axis of a laser coordinate system.
In a plane parallel to the table 110, an X axis and a Y axis perpendicular to each other are set.
And S200, enabling the axis of the cylindrical workpiece to coincide with the Y axis.
The axis of the cylindrical workpiece 200 is aligned with the set Y-axis, and the cylindrical workpiece 200 is rotatable relative to the table 110 about the Y-axis. A rotary motor 120 may be installed on the table 110 such that the rotary motor 120 rotates the cylindrical workpiece 200 with respect to the table 110.
And S300, adjusting the laser focus to the circumferential vertex of the cylindrical workpiece.
The laser beam emitted by the laser 130 is focused by the optical focusing module 140 to obtain a laser spot, so as to obtain the optimal thermal effect. The optical focusing module 140 is adjusted to make the focal point of the laser beam be at the circumferential vertex of the cylindrical workpiece 200, so as to converge a larger energy to a point, thereby performing dot matrix marking on the surface of the cylindrical workpiece 200. The circumferential vertex of the cylindrical workpiece 200 is the position on the circumference of the cylindrical workpiece 200 closest to the optical focusing module 140.
S400, importing the bitmap needing to be marked into marking software, and setting marking parameters.
The bitmap to be marked can be directly imported into marking software, namely the information storage module 160, without conversion between the bitmap and the vector diagram, and the bitmap marking can be realized by performing dot matrix marking on the surface of the cylindrical workpiece 200. Meanwhile, marking parameters are set in the information storage module 160 according to the material of the cylindrical workpiece 200, and the set marking parameters include a marking current, a marking frequency, a marking speed, and the like.
S500, enabling the cylindrical workpiece to rotate by taking the Y axis as a rotating shaft, and scanning the laser beam along the Y axis to mark the surface of the cylindrical workpiece.
The cylindrical workpiece 200 has a plurality of circumferential apexes on its circumference, the plurality of circumferential apexes being positioned on the same line parallel to the Y-axis. The laser beam scans along the Y-axis under the action of the galvanometer module 150, and the marking of a plurality of point locations on the same straight line can be completed, i.e., a line of marking is completed. After the cylindrical workpiece 200 rotates by taking the Y axis as a rotating shaft, the laser beam can complete another line of marking, and by analogy, the laser beam can mark the surface of the cylindrical workpiece 200 line by line.
When the method for marking the bitmap on the cylindrical workpiece 200 is used for marking the cylindrical workpiece 200, the bitmap can be directly introduced into the marking software, the dot matrix marking can be carried out on the surface of the cylindrical workpiece 200 through the rotation of the cylindrical workpiece 200 and the scanning of the galvanometer module 150 along the Y axis, the bitmap does not need to be converted into a vector diagram, the complexity of the marking process is reduced, and the diagram is not easy to distort. Meanwhile, the rotary motion of the cylindrical workpiece 200 is continuous, the marking action of the galvanometer module 150 and the rotation of the cylindrical workpiece 200 are synchronously performed, so that the marking efficiency is improved to a greater extent, and patterns obtained by marking are not spliced, so that the shading effect is better.
Further, in the process of marking a plane, the galvanometer module 150 includes an X galvanometer 151 and a Y galvanometer 152, the X galvanometer 151 can deflect a laser beam along an X axis, the Y galvanometer 152 can deflect a laser beam along a Y axis, and the X galvanometer 151 and the Y galvanometer 152 are matched with each other, so that the laser beam can move in two directions on the plane, and then the dot matrix marking on the plane is completed.
During the marking process of the cylindrical workpiece 200, if the rotation of the cylindrical workpiece 200 can respond in time within a preset time, the X-galvanometer 151 is stationary and the Y-galvanometer 152 scans along the Y-axis. The preset time is specifically the time for completing one line of marking by the laser beam according to the set marking speed and the set skip speed. Within the preset time, if the cylindrical workpiece 200 can rotate in time, so that the next line to be marked moves to the laser beam in time, the rotation of the cylindrical workpiece 200 replaces the X-axis scanning of the X-axis galvanometer 151, and at this time, only the Y-axis galvanometer 152 needs to scan along the Y-axis to complete the dot matrix marking on the surface of the cylindrical workpiece 200. If the rotational response of the cylindrical workpiece 200 is delayed within a predetermined time, the X-galvanometer 151 scans in a direction opposite to the rotational direction of the cylindrical workpiece 200 and the Y-galvanometer 152 scans along the Y-axis. In the preset time, when the rotation of the cylindrical workpiece 200 is not timely corresponding, the next line to be marked cannot move to the target position to realize marking, the X-ray galvanometer 151 is required to scan in the direction opposite to the rotation direction of the cylindrical workpiece 200 to compensate the response delay of the rotation of the cylindrical workpiece 200, so that the laser beam moves to the target position in time, in the process, the rotating motor 120 and the X-ray galvanometer 151 form a multi-axis interpolation system, and the resultant motion of the rotating motor 120 and the X-ray galvanometer 151 is the motion of the X-ray galvanometer 151 for planar marking.
Specifically, when the X-galvanometer 151 scans in a direction opposite to the rotation direction of the cylindrical workpiece 200, the movement path of the X-galvanometer 151 in the circumferential direction of the cylindrical workpiece 200 during the marking time is equal to the circumferential rotation path of the cylindrical workpiece 200 during the marking time, so that the X-galvanometer 151 moves from the previous marking line to the next marking line in the circumferential direction of the cylindrical workpiece 200 during the marking time, and the X-galvanometer 151 and the cylindrical workpiece 200 move synchronously and return to the initial position during the time period when the Y-galvanometer 152 scans along the Y axis to complete one line marking, where the initial position is the position of the marking line of the X-galvanometer 151 at the top point of the circumference of the cylindrical workpiece 200.
In one embodiment, the step of rotating the cylindrical workpiece about the Y-axis and scanning the laser beam along the Y-axis to mark the surface of the cylindrical workpiece further comprises the following steps S200.
And S210, mounting a rotating motor, and enabling the rotating axis of the rotating motor to be overlapped with the Y axis of the laser coordinate system.
The rotary motor 120 is attached to the table 110 such that the rotation axis of the rotary motor 120 coincides with the Y axis of the laser coordinate system set on the table 110.
And S220, clamping the cylindrical workpiece on the rotating motor, and enabling the axis of the cylindrical workpiece to be overlapped with the rotating axis of the rotating motor.
The rotary motor 120 is rotatable about the Y axis, and the axis of the cylindrical workpiece 200 coincides with the rotation axis of the rotary motor 120, so that the cylindrical workpiece 200 can be rotated about the Y axis.
In one embodiment, the step of coinciding the axis of the cylindrical workpiece with the Y-axis S500 further comprises: s600, closing the laser marking device, taking down the cylindrical workpiece, and cleaning the cylindrical workpiece. After the marking is completed, the laser marking apparatus 100 is turned off, the cylindrical workpiece 200 is removed from the rotating motor 120, and the surface of the cylindrical workpiece 200 is cleaned, so that the marked cylindrical workpiece 200 is obtained.
As shown in fig. 2, an apparatus 100 for marking a bitmap on a cylindrical workpiece according to an embodiment of the present invention includes a stage 110, a rotating motor 120, a laser 130, an optical focusing module 140, a galvanometer module 150, an information storage module 160, and a driving module 170.
An X-axis and a Y-axis of a laser coordinate system are set on the stage 110, wherein the X-axis is perpendicular to the Y-axis, and the X-axis and the Y-axis together enclose a plane parallel to the stage 110. The rotary motor 120 is mounted on the table 110, and the rotation axis of the rotary motor 120 coincides with the Y-axis of the laser coordinate system, and the cylindrical workpiece 200 is mounted on the rotary motor 120, and the axis of the cylindrical workpiece 200 coincides with the rotation axis of the rotary motor 120, so that the axis of the cylindrical workpiece 200 coincides with the Y-axis. The rotary motor 120 can drive the cylindrical workpiece 200 to rotate relative to the table 110 about the Y-axis. In other embodiments, the rotating motor 120 may be replaced by other types of components capable of driving the cylindrical workpiece 200 to rotate.
And an information storage module 160 for storing the bitmap information and the mark parameter. The bitmap to be marked on the cylindrical workpiece 200 is directly imported into the information storage module 160, and the bitmap marking is realized by dot matrix marking on the surface of the cylindrical workpiece 200. Meanwhile, the marking parameters are set according to the material of the cylindrical workpiece 200, and the set marking parameters include a marking current, a marking frequency, a marking speed, and the like.
The laser 130 is used for emitting a laser beam, and the optical focusing module 140 can focus the laser beam emitted by the laser 130 to obtain a laser spot, so that the focal point of the laser beam can be at the circumferential vertex of the cylindrical workpiece 200, thereby converging a larger energy into a point, and further performing dot matrix marking on the surface of the cylindrical workpiece 200.
The driving module 170 is connected to the information storage module 160 and the galvanometer module 150. The driving module 170 can drive the galvanometer module 150 to move according to the mark information stored in the information storage module 160, and the galvanometer module 150 can enable the laser beam to scan the cylindrical workpiece 200 along a preset path so as to mark the cylindrical workpiece 200.
Specifically, in one embodiment, the galvanometer module 150 includes an X galvanometer 151 and a Y galvanometer 152, the X galvanometer 151 can deflect the laser beam along an X axis, the Y galvanometer 152 can deflect the laser beam along a Y axis, and the X galvanometer 151 and the Y galvanometer 152 cooperate to mark the surface of the cylindrical workpiece 200 along a predetermined track.
Within a preset time, if the rotation of the cylindrical workpiece 200 can respond in time, so that the next line to be marked moves to the laser beam in time, the rotation of the cylindrical workpiece 200 replaces the X-axis scanning of the X-galvanometer 151, the X-galvanometer 151 is stationary, and the Y-galvanometer 152 scans along the Y-axis, so as to complete the dot matrix marking on the surface of the cylindrical workpiece 200. In the preset time, if the rotation response of the cylindrical workpiece 200 is delayed, the next line to be marked cannot move to the target position in time to realize marking, the X-ray galvanometer 151 scans along the direction opposite to the rotation direction of the cylindrical workpiece 200 to compensate the response delay of the rotation of the cylindrical workpiece 200, so that the laser beam moves to the target position in time, in the process, the rotary motor 120 and the X-ray galvanometer 151 form a multi-axis interpolation system, the resultant motion of the rotary motor 120 and the X-axis galvanometer is the motion of the X-ray galvanometer 151 for marking on a plane, and the Y galvanometer 152 scans along the Y axis, so that the dot matrix marking on the surface of the cylindrical workpiece 200 is completed.
In the present embodiment, the laser 130 is an infrared fiber laser. The pulse wavelength of the laser 130 is 1055 nm-1075 nm, the pulse width of the laser is 3-200 ns, and the average power of the laser is 20W.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of marking a bitmap on a cylindrical workpiece, comprising the steps of:
setting an X axis and a Y axis of a laser coordinate system;
the axis of the cylindrical workpiece is coincident with the Y axis;
adjusting the laser focus at the circumferential vertex of the cylindrical workpiece;
importing a bitmap to be marked into marking software, and setting marking parameters;
rotating the cylindrical workpiece by taking a Y axis as a rotating shaft, and scanning the laser beam along the Y axis to mark the surface of the cylindrical workpiece;
the circumference of the cylindrical workpiece is provided with a plurality of circumferential vertexes, the circumferential vertexes are positioned on the same straight line parallel to the Y axis, when the laser beam scans along the Y axis, the laser beam marks a plurality of point positions positioned on the same straight line, and after the cylindrical workpiece rotates by taking the Y axis as a rotating shaft, the laser beam finishes marking of a plurality of point positions positioned on the same straight line on another line.
2. A method of marking a bitmap on a cylindrical workpiece as recited in claim 1, wherein in the step of rotating the cylindrical workpiece about the Y-axis, the laser beam is scanned along the Y-axis to mark the surface of the cylindrical workpiece,
within a preset time, if the rotation of the cylindrical workpiece can respond timely, the X galvanometer is static, and the Y galvanometer scans along the Y axis; alternatively, the first and second electrodes may be,
if the rotation response of the cylindrical workpiece is delayed within a preset time, the X galvanometer scans along the direction opposite to the rotation direction of the cylindrical workpiece, and the Y galvanometer scans along the Y axis.
3. A method of marking a bitmap on a cylindrical workpiece according to claim 2, wherein the path of movement of the X-galvanometer in the circumferential direction of the cylindrical workpiece during the dead time is equal to the circumferential path of rotation of the cylindrical workpiece during the marking time while the X-galvanometer is scanning in a direction opposite to the direction of rotation of the cylindrical workpiece.
4. A method of marking a bitmap on a cylindrical workpiece as recited in claim 1, wherein the step of coinciding the axis of the cylindrical workpiece with the Y-axis further comprises:
installing a rotating motor, and enabling a rotating axis of the rotating motor to be superposed with a Y axis of a laser coordinate system;
the cylindrical workpiece is clamped on the rotating motor, and the axis of the cylindrical workpiece is overlapped with the rotating axis of the rotating motor.
5. A method of marking a bitmap on a cylindrical workpiece according to claim 1, wherein the step of bringing the axis of the cylindrical workpiece into registration with the Y-axis further comprises the steps of shutting off the laser marking device, removing the cylindrical workpiece and cleaning the cylindrical workpiece.
6. An apparatus for marking a bitmap on a cylindrical workpiece, for performing the method of marking a bitmap on a cylindrical workpiece of any one of claims 1-5, comprising:
the device comprises a workbench, a laser positioning device and a control device, wherein the workbench is used for supporting a cylindrical workpiece, and the cylindrical workpiece can rotate relative to the workbench by taking a Y axis of a laser coordinate system set on the workbench as a rotating shaft;
a laser for generating a laser beam;
an optical focusing module capable of focusing the laser beam to obtain a laser spot; the laser spot can be incident to the circumferential vertex of the cylindrical workpiece, the circumference of the cylindrical workpiece is provided with a plurality of circumferential vertexes, and the plurality of circumferential vertexes are positioned on the same straight line parallel to the Y axis;
the galvanometer module can deflect the laser beam to enable the laser spot to move along a preset path;
the information storage module is used for storing bitmap information and marking parameters; and
the driving module is connected with the information storage module and the mirror vibration module, drives the mirror vibration module to move, and enables the laser beam to mark the cylindrical workpiece along a preset path.
7. An apparatus according to claim 6, further comprising a rotary motor mounted on the table with its axis of rotation coincident with the Y axis of the laser coordinate system, the cylindrical workpiece being clamped on the rotary motor with its axis coincident with the axis of rotation of the rotary motor.
8. An apparatus according to claim 6, wherein the galvanometer module comprises an X galvanometer and a Y galvanometer, the X galvanometer being stationary or scanning in a direction opposite to the direction of rotation of the cylindrical workpiece, the Y galvanometer scanning along the Y axis.
9. An apparatus according to claim 6, wherein the laser is an infrared fiber laser.
10. An apparatus according to claim 6, wherein the laser has a pulse wavelength of 1055nm to 1075nm, a pulse width of 3 to 200ns, and an average power of 20W.
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| CN108857073B (en) * | 2018-06-15 | 2021-06-25 | 常州天寅智造科技股份有限公司 | Engraving control method and engraving system |
| CN109454329B (en) * | 2018-11-27 | 2021-08-03 | 佛山市富兰激光科技有限公司 | Linkage rotary marking control method and device |
| CN109693043B (en) * | 2019-02-22 | 2021-07-20 | 深圳市杰普特光电股份有限公司 | Marking method and organic glass |
| CN111822867A (en) * | 2019-04-19 | 2020-10-27 | 大族激光科技产业集团股份有限公司 | Dynamic rotation marking method and device for cylinder |
| CN113020786B (en) * | 2021-04-14 | 2023-04-07 | 新代科技(苏州)有限公司 | Laser marking device and control method thereof |
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