CN116944688A - Multi-point laser marking auxiliary focusing device and method - Google Patents
Multi-point laser marking auxiliary focusing device and method Download PDFInfo
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- CN116944688A CN116944688A CN202311011595.6A CN202311011595A CN116944688A CN 116944688 A CN116944688 A CN 116944688A CN 202311011595 A CN202311011595 A CN 202311011595A CN 116944688 A CN116944688 A CN 116944688A
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- axis
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- indication light
- marking
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- 238000010330 laser marking Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 9
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0676—Dividing the beam into multiple beams, e.g. multifocusing into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a multipoint laser marking auxiliary focusing device which comprises a control system; the X-axis galvanometer motor is connected with the X-axis reflecting mirror; the Y-axis galvanometer motor is connected with the Y-axis reflector; when the indication light sources are lightened, two light spots which are not overlapped are formed on the marking plane, at the moment, any one of the indication light spots can be positioned at any position in the effective range of the marking plane through the rotation of the YX-axis vibrating mirror motor, the two indication light sources are lightened alternately and are matched with the rotation of the vibrating mirror motor, any point of the effective area on the marking plane, which is overlapped with the two indication light spots, can be achieved through the periodical alternate positioning, when the marking plane and the vibrating mirror distance are changed, the light spots can be separated, and therefore operators are guided to adjust the vibrating lens and the marking microscopic distance to be overlapped again, and the auxiliary focusing operation is completed.
Description
Technical Field
The invention relates to the technical field of laser marking, in particular to a multi-point laser marking auxiliary focusing device and a multi-point laser marking auxiliary focusing method.
Background
When the conventional laser marking machine realizes the auxiliary focusing function, a scheme described in patent number CN208953787U is generally adopted. A pair of red light indicators with adjustable angles are arranged at different positions on the vibrating mirror, then two red light beams are adjusted to be overlapped at a certain point of the marking plane in a crossing way, and when the marking plane changes in focal length, the indicating points display two red points separately. The operator adjusts the height distance of the excitation lens, so that the two points can be overlapped again, and the relative moment of the marking plane and the vibrating mirror is adjusted to the set moment, thereby achieving the function of auxiliary focusing indication. As shown in fig. 2.
The scheme can only realize the laser focusing auxiliary function of a preset fixed point, and the method can be disabled when the marking position is changed or the set point has no referenceability.
Disclosure of Invention
The invention aims to provide a multi-point laser marking auxiliary focusing device and a multi-point laser marking auxiliary focusing method, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a multi-point laser marking auxiliary focusing device comprises a control system; the X-axis galvanometer motor is connected with the X-axis reflecting mirror; the Y-axis galvanometer motor is connected with the Y-axis reflector; the field lens is matched with the positions of the X-axis reflecting mirror and the Y-axis reflecting mirror; the first indicating light source and the second indicating light source are arranged on one side of the X-axis reflecting mirror and one side of the Y-axis reflecting mirror; the first indication light source displays a first indication light spot on the marking plane, and the second indication light source displays a second indication light spot on the marking plane; and the laser beams are arranged on the same side of the X-axis reflecting mirror and the Y-axis reflecting mirror.
Optionally, the first indication light source and the second indication light source form an included angle.
A multipoint laser marking auxiliary focusing method comprises the following steps:
step 1: the X-axis galvanometer motor is positioned to an X1 coordinate, the Y-axis galvanometer motor is positioned to a Y1 coordinate, then the first indication light source is started to be lightened, at the moment, the first indication light point coordinate is X1', Y1', and after the first indication light source is lightened for a period of time, the first indication light source is extinguished;
step 2: the X-axis galvanometer motor is positioned to an X2 coordinate, the Y-axis galvanometer motor is positioned to a Y2 coordinate, then the second indication light source is started to be lightened, at the moment, the point coordinates of the second indication point are X2', Y2', and after the second indication light source is lightened for a period of time, the second indication light source is extinguished;
step 3: alternately executing the steps 1 and 2, and when the frequency is high enough, seeing two continuous and synchronously lighted first indication point light spots and second indication point light spots on the marking plane;
step 4: the first indication light spot coordinate X1', Y1' and the second indication light spot coordinate X2', Y2' can be positioned at any point in the effective range of the marking plane by adjusting the set X1, Y1, X2 and Y2 coordinate values and are overlapped, and because the light paths of the first indication light source and the second indication light source are not overlapped, when the marking plane and the vibrating mirror distance change, two originally overlapped light spots are separated into two independent light spots, so that an operator is guided to adjust the moment height between the marking plane and the vibrating mirror, and the two points are overlapped again, thereby achieving the purpose of guiding focusing.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a multi-point laser marking auxiliary focusing device and a method, which are characterized in that two point-shaped indication light sources which are arranged in a staggered way are adopted, and a certain included angle is formed by the staggered installation of the two point-shaped indication light sources on the incidence side of laser; when the indication light sources are lightened, two light spots which are not overlapped are formed on the marking plane, at the moment, any one of the indication light spots can be positioned at any position in the effective range of the marking plane through the rotation of the YX-axis vibrating mirror motor, the two indication light sources are lightened alternately and are matched with the rotation of the vibrating mirror motor, any point of the effective area on the marking plane, which is overlapped with the two indication light spots, can be achieved through the periodical alternate positioning, when the marking plane and the vibrating mirror distance are changed, the light spots can be separated, and therefore operators are guided to adjust the vibrating lens and the marking microscopic distance to be overlapped again, and the auxiliary focusing operation is completed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a prior art structure in the present background;
fig. 3 is a schematic view of the position of the beam combiner of the present invention.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 and 3, a multi-point laser marking auxiliary focusing device comprises a control system; an X-axis galvanometer motor 100, the X-axis galvanometer motor 100 being connected to an X-axis mirror 200; the Y-axis galvanometer motor 300 is connected with the Y-axis reflector 400; a field lens 500, the field lens 500 being matched with the positions of the X-axis mirror 200 and the Y-axis mirror 400; a first and a second indication light sources 600 and 700, the first and the second indication light sources 600 and 700 being disposed at one sides of the X-axis mirror 200 and the Y-axis mirror 400; a marking plane 800, wherein the first indication light source 600 displays a first indication light spot 900 on the marking plane 800, and the second indication light source 700 displays a second indication light spot 901 on the marking plane 800; a laser beam 902, said laser beam 902 being arranged on the same side of said X-axis mirror 200 and Y-axis mirror 400.
The first indication light source 600 and the second indication light source 700 form an included angle, and the included angle of the first indication light source 600 and the second indication light source 700 is designed reasonably according to the distance between the indication light source and the X-axis reflector 200 and the bearing area of the X-axis reflector 200 and the Y-axis reflector 400.
A multipoint laser marking auxiliary focusing method comprises the following steps:
step 1: the X-axis galvanometer motor 100 is positioned to the X1 coordinate, the Y-axis galvanometer motor 300 is positioned to the Y1 coordinate, then the first indication light source 600 is started to be turned on, at this time, the first indication light source 900 is turned on for a period of time at the time of the first indication light source 900, and then the first indication light source 600 is turned off;
step 2: the X-axis galvanometer motor 100 positions the X2 coordinate, the Y-axis galvanometer motor 300 positions the Y2 coordinate, then the second indication light source 700 starts to light up, at this time, the second indication point light point 901 lights up the coordinate as X2', Y2', after lighting up for a period of time, then the second indication light source 700 is turned off;
step 3: alternately executing steps 1 and 2, and when the frequency is enough, obtaining two continuous and synchronous lighted first indication point light spots 900 and second indication point light spots 901 on the marking plane 800;
step 4: the coordinates X1', Y1' of the first indicating light spot 900 and the coordinates X2', Y2' of the second indicating light spot 901 can be positioned at any point in the effective range of the marking plane by adjusting the set coordinates X1, Y1, X2 and Y2, and the light paths of the first indicating light source 600 and the second indicating light source 700 are not overlapped, when the marking plane 800 and the vibrating mirror distance change, two originally overlapped points are separated into two independent points, and an operator is guided to adjust the moment height between the marking plane 800 and the vibrating mirror, so that the two points are overlapped again, and the focusing purpose is achieved.
Through control system program setting, when a plurality of products share one marking machine for marking, a focusing reference point can be set for each product at an out-of-position without adjusting any hardware device. And the automatic matching device can be in one-to-one correspondence with the program templates of the marking products, so that any product can be realized, and when the marking templates are opened, corresponding focusing indication light spots are automatically matched and output, so that operators are guided to quickly adjust the marking Jiao Ju.
Besides being capable of assisting the marking machine in focusing, the marking machine can also guide marking products to carry out clamping and positioning, such as: and (3) directing the double red light to two fixed reference points of the marking product, and when the product needs to be marked, only the two reference points of the product are required to be aligned with the light points of the indicating light in sequence, so that the calibration of the marking position of the workpiece can be completed.
Meanwhile, the invention is provided with the beam combining mirror 903 at the coaxial position of the laser beam 902 and reflects the second indication light source 700 to the coaxial optical path with the laser, so that the same effect can be realized.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (3)
1. The multipoint laser marking auxiliary focusing device is characterized by comprising a control system;
an X-axis galvanometer motor (100), wherein the X-axis galvanometer motor (100) is connected with an X-axis reflector (200);
the Y-axis galvanometer motor (300), and the Y-axis galvanometer motor (300) is connected with the Y-axis reflector (400);
a field lens (500), the field lens (500) being matched to the positions of the X-axis mirror (200) and the Y-axis mirror (400);
a first indication light source (600) and a second indication light source (700), wherein the first indication light source (600) and the second indication light source (700) are arranged at one side of the X-axis reflecting mirror (200) and one side of the Y-axis reflecting mirror (400);
a marking plane (800), the first indication light source (600) displays a first indication light spot (900) on the marking plane (800), and the second indication light source (700) displays a second indication light spot (901) on the marking plane (800);
-a laser beam (902), said laser beam (902) being arranged on the same side of said X-axis mirror (200) and Y-axis mirror (400).
2. A multi-point laser marking secondary focusing device as claimed in claim 1, wherein said first (600) and second (700) indicator light sources form an included angle.
3. The multipoint laser marking auxiliary focusing method is characterized by comprising the following control steps:
step 1: the X-axis galvanometer motor (100) is positioned to an X1 coordinate, the Y-axis galvanometer motor (300) is positioned to a Y1 coordinate, then the first indication light source (600) is started to be lightened, at the moment, the bright point coordinates of the first indication point light point (900) are X1', Y1', and then the first indication light source (600) is extinguished;
step 2: the X-axis galvanometer motor (100) positions an X2 coordinate, the Y-axis galvanometer motor (300) positions a Y2 coordinate, then the second indication light source (700) is started to be lightened, at the moment, the second indication point light point (901) is lightened to the X2', Y2', and then the second indication light source (700) is extinguished;
step 3: alternately executing the steps 1 and 2, and seeing two continuously and synchronously lighted first indication point light spots (900) and second indication point light spots (901) on the marking plane (800);
step 4: the coordinates X1, Y1, X2 and Y2 of the first indication light spot (900) can be positioned at any point in the effective range of the marking plane by adjusting the set coordinates X1', Y1' and the coordinates X2', Y2' of the second indication light spot (901), and the first indication light source (600) and the second indication light source (700) are overlapped, and when the distance between the marking plane (800) and the galvanometer changes, two originally overlapped points are separated into two independent points, so that an operator is guided to adjust the distance between the marking plane (800) and the galvanometer, and the two points are overlapped again, thereby achieving the purpose of guiding focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311011595.6A CN116944688A (en) | 2023-08-11 | 2023-08-11 | Multi-point laser marking auxiliary focusing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311011595.6A CN116944688A (en) | 2023-08-11 | 2023-08-11 | Multi-point laser marking auxiliary focusing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116944688A true CN116944688A (en) | 2023-10-27 |
Family
ID=88446306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311011595.6A Pending CN116944688A (en) | 2023-08-11 | 2023-08-11 | Multi-point laser marking auxiliary focusing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116944688A (en) |
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2023
- 2023-08-11 CN CN202311011595.6A patent/CN116944688A/en active Pending
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