CN111014967A - Laser marking device and method of embedded visual galvanometer - Google Patents
Laser marking device and method of embedded visual galvanometer Download PDFInfo
- Publication number
- CN111014967A CN111014967A CN201911378005.7A CN201911378005A CN111014967A CN 111014967 A CN111014967 A CN 111014967A CN 201911378005 A CN201911378005 A CN 201911378005A CN 111014967 A CN111014967 A CN 111014967A
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- China
- Prior art keywords
- galvanometer
- laser marking
- module
- visual
- field lens
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—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
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
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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 discloses a laser marking device and method of an embedded visual galvanometer, which comprises a galvanometer, a field lens, a light source, a visual module and an auxiliary focusing module, wherein the laser marking device comprises: the galvanometer consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting mirror and is an executing device for laser marking; the field lens is used for an optical scanning lens for laser marking and carving and is combined with the galvanometer for use; the light source is used for irradiating a workpiece to be marked and is attached to the galvanometer to be integrated; the vision module is used for acquiring and outputting images and quickly sending image information of the workpiece to be marked to the controller; and the auxiliary focusing module is used for determining the focusing position of the field lens. The invention embeds (implants) the visual system into the galvanometer, so that the galvanometer has the functions of quick identification, convenient positioning, visual programming, marking isomorphism and the like, and the laser processing is simpler, more convenient and more efficient.
Description
The technical field is as follows:
the invention relates to the technical field of laser marking, in particular to a laser marking device and method of an embedded visual galvanometer.
Background art:
laser marking has become an important processing method for modern manufacturing, especially in the fields of precision machining and micro-machining. Laser marking is a marking method in which a certain part of a workpiece is irradiated with high-energy-density laser to vaporize a surface layer material or to cause a chemical reaction of color change, thereby leaving a permanent mark. The laser marking can print various characters, symbols, patterns and the like, and the size of the characters can be from millimeter to micron, which has special significance for the anti-counterfeiting of products. The focused superfine laser beam speed is like a cutter, the surface material of the object can be removed point by point, and the advancement is that the marking process is non-contact processing, and no mechanical extrusion or mechanical stress is generated, so that the processed object cannot be damaged; and because the size of the focused laser is small, the heat affected zone is small, and the processing is fine, the process which can not be realized by some conventional methods can be finished.
The traditional laser marking machine generally does not have the function of detecting the position of a workpiece, and positioning is realized by utilizing a tool clamp, namely, manual intervention positioning is carried out. However, the difficulty in achieving accurate positioning when marking fine or extremely tiny processing objects is high, picking and placing operations of the processing objects are difficult, and the accuracy and consistency of marking positions are difficult to guarantee in practical operation due to factors such as human factors. The precision of the tool clamp for positioning the product to be machined can directly influence the precision of the marking position of the part, and the coordinate position of each machined object is unique. Meanwhile, the marking effect of the processing object below the millimeter level cannot be distinguished by naked eyes, an independent detection system is needed for detection, the manual intervention and positioning are complex, the automation degree is low, and the precision is difficult to effectively guarantee.
The invention content is as follows:
the invention aims to provide a laser marking device and a laser marking method of an embedded visual galvanometer, which are used for solving the defects of the prior art.
The invention is implemented by the following technical scheme: the utility model provides an embedded vision shakes laser marking device of mirror, includes mirror, field lens, light source, vision module, supplementary focus module that shakes, wherein:
the galvanometer consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting mirror and is an executing device for laser marking;
the field lens is used for an optical scanning lens for laser marking and carving and is combined with the galvanometer for use;
the light source is used for irradiating a workpiece to be marked and is attached to the galvanometer to be integrated;
the vision module is used for acquiring and outputting images and quickly sending image information of the workpiece to be marked to the controller;
and the auxiliary focusing module is used for determining the focusing position of the field lens.
Preferably, the controller is a single chip microcomputer or an ARM processor.
Preferably, the vision module is a CCD camera and has an image input interface and an image output interface.
A laser marking method of an embedded visual galvanometer is characterized in that after visible light emitted by a light source irradiates a workpiece to be marked, the visible light enters a galvanometer from a field lens and is reflected to a visual module, the visual module images and sends position information to a marking control card, the marking control card compares the position information with preset position information to calculate offset size, the marking control card generates a control command according to the calculated offset size and controls the galvanometer through the control command, and the galvanometer swings correspondingly; laser emitted from the laser device passes through the vibrating mirror and then reaches the field lens, and the field lens focuses the laser output by the vibrating mirror to form a marking beam to irradiate a workpiece to be marked.
The invention has the advantages that:
the invention embeds (implants) the visual system into the galvanometer, so that the galvanometer has the functions of quick identification, convenient positioning, visual programming, marking isomorphism and the like, and the laser processing is simpler, more convenient and more efficient.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an explosive structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a laser marking device of embedded vision galvanometer comprises galvanometer 1, field lens 2, light source 3, vision module 4 and auxiliary focusing module 5, wherein:
the galvanometer 1 consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting lens and is an executing device for laser marking;
the field lens 2 is used for an optical scanning lens for laser marking and carving and is combined with the galvanometer 1;
the light source 3 is used for irradiating a workpiece to be marked and is attached to the galvanometer 1 to be integrated;
the vision module 4 is used for collecting images and outputting the images, and can quickly send image information of a workpiece to be marked to the controller;
and the auxiliary focusing module 5 determines the focusing position of the field lens.
Wherein, the controller is a singlechip or an ARM processor. The vision module 4 is a CCD camera and has an image input interface and an image output interface.
A laser marking method of an embedded visual galvanometer, after the visible light that the light source 3 sends out is shone on the work piece to be marked, the visible light enters the galvanometer 1 from the field lens 2 and reflects to the visual module 4, the visual module 4 images and sends the position information to marking the control card, marking the control card to compare the position information with preset position information and calculate the size of excursion, marking the control card will produce the control command according to the size of excursion calculated and control the galvanometer 1 through the control command, the galvanometer 1 will make the corresponding swing; laser emitted from a laser device passes through the vibrating mirror 1 and then reaches the field lens 2, and the field lens 2 focuses the laser output by the vibrating mirror 1 to form a marking beam to irradiate a workpiece to be marked.
The using steps of the invention comprise:
the first step is as follows: focusing and adjusting an embedded visual two-dimensional scanning galvanometer;
the second step is that: starting embedded visual two-dimensional scanning galvanometer marking software;
the third step: starting CCD vision to identify, test and position the workpiece;
the fourth step: and starting the embedded visual two-dimensional scanning galvanometer and feeding the feedback to software for processing.
The invention is mainly suitable for the rapid identification of optical fibers, YAG, CO2 and other lasers, is convenient to position, has the same shape as visible coded marks, is simple, convenient and fast, and works with high efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides an embedded vision shakes laser marking device of mirror, its characterized in that, including mirror (1), field lens (2), light source (3), vision module (4), supplementary focus module (5) shake, wherein:
the galvanometer (1) consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting mirror and is an executing device for laser marking;
the field lens (2) is used for an optical scanning lens for laser marking and carving and is combined with the galvanometer (1) for use;
the light source (3) is used for irradiating a workpiece to be marked and is attached to the galvanometer (1) to be integrated;
the vision module (4) is used for providing image acquisition and image output and can quickly send image information of a workpiece to be marked to the controller;
and an auxiliary focusing module (5) for determining the focusing position of the field lens.
2. The laser marking device of the embedded visual galvanometer of claim 1, wherein the controller is a single chip microcomputer or an ARM processor.
3. The laser marking device of the embedded visual galvanometer of claim 1, wherein the visual module (4) is a CCD camera and has an image input interface and an image output interface.
4. A laser marking method of an embedded visual galvanometer is characterized in that after visible light emitted by a light source (3) irradiates a workpiece to be marked, the visible light enters the galvanometer (1) from a field lens (2) and is reflected to a visual module (4), the visual module (4) images and sends position information to a marking control card, the marking control card compares the position information with preset position information to calculate offset size, the marking control card generates a control command according to the calculated offset size and controls the galvanometer (1) through the control command, and the galvanometer (1) swings correspondingly; laser emitted from a laser device passes through the vibrating mirror (1) and then reaches the field lens (2), and the field lens (2) focuses the laser output by the vibrating mirror (1) to form a marking beam to irradiate a workpiece to be marked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378005.7A CN111014967A (en) | 2019-12-27 | 2019-12-27 | Laser marking device and method of embedded visual galvanometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378005.7A CN111014967A (en) | 2019-12-27 | 2019-12-27 | Laser marking device and method of embedded visual galvanometer |
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| CN111014967A true CN111014967A (en) | 2020-04-17 |
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| CN201911378005.7A Pending CN111014967A (en) | 2019-12-27 | 2019-12-27 | Laser marking device and method of embedded visual galvanometer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837962A (en) * | 1996-07-15 | 1998-11-17 | Overbeck; James W. | Faster laser marker employing acousto-optic deflection |
| US20150251272A1 (en) * | 2012-09-21 | 2015-09-10 | Lpkf Laser & Electronics Ag | Device for position control of a laser machining beam |
| CN205551797U (en) * | 2016-04-08 | 2016-09-07 | 深圳市升达康科技有限公司 | Automatic vision positioning laser marking machine |
| CN206306643U (en) * | 2016-12-12 | 2017-07-07 | 武汉绝顶光电科技有限公司 | A kind of laser mark printing device that vision positioning is coaxially carried out based on CCD and galvanometer |
| CN208005000U (en) * | 2018-01-29 | 2018-10-26 | 深圳市美思美科智能科技股份有限公司 | A kind of full-automatic vision positioning laser marking machine |
| CN110465749A (en) * | 2019-09-12 | 2019-11-19 | 深圳市聚鑫极光科技有限公司 | A kind of laser marking machine and positioning marking method |
-
2019
- 2019-12-27 CN CN201911378005.7A patent/CN111014967A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5837962A (en) * | 1996-07-15 | 1998-11-17 | Overbeck; James W. | Faster laser marker employing acousto-optic deflection |
| US20150251272A1 (en) * | 2012-09-21 | 2015-09-10 | Lpkf Laser & Electronics Ag | Device for position control of a laser machining beam |
| CN205551797U (en) * | 2016-04-08 | 2016-09-07 | 深圳市升达康科技有限公司 | Automatic vision positioning laser marking machine |
| CN206306643U (en) * | 2016-12-12 | 2017-07-07 | 武汉绝顶光电科技有限公司 | A kind of laser mark printing device that vision positioning is coaxially carried out based on CCD and galvanometer |
| CN208005000U (en) * | 2018-01-29 | 2018-10-26 | 深圳市美思美科智能科技股份有限公司 | A kind of full-automatic vision positioning laser marking machine |
| CN110465749A (en) * | 2019-09-12 | 2019-11-19 | 深圳市聚鑫极光科技有限公司 | A kind of laser marking machine and positioning marking method |
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Application publication date: 20200417 |
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