CN112692435A - Ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method and system - Google Patents
Ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method and system Download PDFInfo
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- CN112692435A CN112692435A CN201911013712.6A CN201911013712A CN112692435A CN 112692435 A CN112692435 A CN 112692435A CN 201911013712 A CN201911013712 A CN 201911013712A CN 112692435 A CN112692435 A CN 112692435A
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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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The invention provides an ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method and system, wherein the method comprises the following steps: uniformly coating oil mirror oil with preset parameters on a preset coating area corresponding to a position to be marked; marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the position to be marked in the ground glass piece coated with the oil mirror oil according to the processing technological parameters; the method comprises the steps of reading workpiece information of the ground glass piece contained in a micro two-dimensional code at a position to be marked in the ground glass piece through code reading equipment, and storing preparation information of the ground glass piece in association with the workpiece information. The laser engraving method is simple to operate, the laser engraved micro two-dimensional code in the ground glass piece is clear and easy to read, and preparation information of a product in the manufacturing, circulating and using processes and the like can be traced smoothly according to the information read in the micro two-dimensional code.
Description
Technical Field
The invention belongs to the technical field of ground glass surface processing, and particularly relates to an ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method and system.
Background
With the development of scientific technology, the 5G technology is more and more widely applied, but in the application of the 5G technology, since metal can generate a shielding effect on electromagnetic waves, the application of glass as a component of an electronic product in the 5G technology is more and more extensive. At present, product marks (such as two-dimensional codes and the like) can be laser engraved on components of electronic products made of glass so as to clearly trace the whole period of the products in manufacturing, circulation and use.
Because the product sign of laser radium carving only can trace back the process behind the laser radium carving process, therefore, for avoiding the process can't be traced back, can put glass components and parts's laser radium carving process at the more processing position that leans on in the front, consequently, the laser radium carving process of very most glass components and parts among the prior art all need go on before the glass burnishing and polishing process, at this moment, because the glass itself for not carrying out burnishing and polishing has certain roughness, if need not laser radium carving product sign on the glass components and parts before the burnishing and polishing, rough uneven surface will form diffuse reflection and refraction to laser, lead to the laser energy decay, can't assemble inside glass, form clear dot matrix. Therefore, the laser cannot successfully laser-engrave the product mark in the glass, and finally, all the procedures of the electronic product made of the glass in the whole manufacturing, circulating and using periods cannot be traced.
Disclosure of Invention
The invention aims to provide an ultrafast laser-based method and a system for engraving a miniature two-dimensional code in ground glass, wherein the miniature two-dimensional code can be successfully marked in the ground glass piece through ultrafast laser, information stored in the miniature two-dimensional code can be conveniently read, and further preparation information of a product in the manufacturing, circulating and using processes and the like can be smoothly traced according to the information read in the miniature two-dimensional code.
In order to achieve the purpose, the invention adopts the technical scheme that: the provided ultrafast laser-based micro two-dimensional code inside-engraving method for ground glass comprises the following steps:
carrying out decontamination treatment on the surface of the ground glass piece;
placing the ground glass piece subjected to decontamination treatment on a processing platform, and after starting an ultrafast laser, adjusting the laser focus of ultrafast laser emitted by the ultrafast laser to a position to be marked in the ground glass piece;
uniformly coating oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked;
acquiring two-dimensional code parameters corresponding to the ground glass piece and processing technological parameters of an ultrafast laser, and marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the to-be-marked position in the ground glass piece coated with the oil-coated mirror oil according to the processing technological parameters;
when a first code reading instruction is received, reading workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, and storing preparation information of the ground glass piece and the workpiece information in a correlation mode.
Further, associating the preparation information of the ground glass piece with the workpiece information comprises:
when a second code reading instruction is received, reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, calling the preparation information of the ground glass piece according to the workpiece information, and displaying the workpiece information and the preparation information of the ground glass piece on a current display interface.
Further, the wavelength of ultrafast laser emitted by the ultrafast laser is 355nm, and the pulse width is 5-25 ps; the laser lens of the ultrafast laser is a small focal length lens.
Further, the desmutting treatment of the surface of the ground glass piece comprises the following steps:
and cleaning dirt and grease on the surface of the ground glass piece by using alcohol, and then airing the ground glass piece.
Further, evenly coating the oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked, and the method comprises the following steps:
absorb transparent and refracting index with the straw with the absolute value of the difference between frosted glass's the refracting index is less than predetermineeing the difference the oil-immersed mirror oil, and will absorb the oil-immersed mirror oil drip with treat that mark department corresponds predetermine the coating region, use soft doctor-bar will drip predetermine in the coating region the oil-immersed mirror oil is strickleed off, until the oil-immersed mirror oil covers uniformly predetermine the coating region surface.
Further, the processing parameters of the ultrafast laser include: the processing speed is 2-1000 mm/s, the laser frequency is 100-1000 KHZ, the Burst number is 1-7, the point spacing is 0.005-0.1 mm, and the laser power is 20-80% of the output power of the ultrafast laser.
Further, before acquiring the two-dimensional code parameters corresponding to the ground glass piece and the processing parameters of the ultrafast laser, the method further comprises the following steps:
and generating an image of a micro two-dimensional code according to the workpiece information of the ground glass piece, simultaneously acquiring the size of the micro two-dimensional code corresponding to the ground glass piece, and storing the size of the micro two-dimensional code and the image in an associated manner as the two-dimensional code parameter corresponding to the ground glass piece.
Further, the length and the width of the miniature two-dimensional code are both less than or equal to 0.2 mm.
Further, the surface roughness of the ground glass piece is 0.25-0.34 um.
The invention also provides an ultrafast laser-based micro two-dimensional code inside-carving system in ground glass, which comprises a control module and ultrafast laser equipment connected with the control module, wherein the control module comprises:
the decontamination module is used for decontaminating the surface of the ground glass piece;
the focusing module is used for placing the ground glass piece subjected to decontamination treatment on a processing platform, and adjusting the laser focus of ultrafast laser emitted by the ultrafast laser to a position to be marked in the ground glass piece after the ultrafast laser is started;
the coating module is used for uniformly coating the oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked;
the marking module is used for acquiring two-dimensional code parameters corresponding to the ground glass piece and processing technological parameters of an ultrafast laser, and marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the to-be-marked position in the ground glass piece coated with the oil mirror oil according to the processing technological parameters;
and the code reading module is used for reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment when a first code reading instruction is received, and storing the preparation information of the ground glass piece and the workpiece information in a correlation manner.
Uniformly coating oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked; marking a micro two-dimensional code corresponding to the two-dimensional code parameter at the position to be marked in the ground glass piece coated with the oil mirror oil according to the processing technological parameter; and then reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, and storing the preparation information of the ground glass piece and the workpiece information in a correlation manner. According to the invention, the micro two-dimensional code can be successfully marked in the ground glass piece through the ultrafast laser, the information (such as the workpiece information and the preparation information) stored in the micro two-dimensional code can be conveniently read, and the preparation information (and the workpiece information) of the product in the manufacturing, circulating and using processes can be smoothly traced according to the information read in the micro two-dimensional code.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for engraving a micro two-dimensional code in ground glass based on ultrafast laser according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, a description will now be given of a method for engraving a miniature two-dimensional code in ground glass based on ultrafast laser, which specifically includes the following steps:
s10, performing decontamination treatment on the surface of the ground glass piece; preferably, the step S10 specifically includes: and cleaning dirt and grease on the surface of the ground glass piece by using alcohol, and then airing the ground glass piece. Understandably, other cleaning compositions that readily clean dirt and grease (or other contaminants that may be present) may be used to clean the ground glass pieces in the present invention.
S20, placing the ground glass piece subjected to decontamination treatment on a processing platform, and after starting an ultrafast laser, adjusting the laser focus of the ultrafast laser emitted by the ultrafast laser to the position to be marked in the ground glass piece; in this embodiment, processing platform is the precision finishing platform, processing platform can be in the three direction of X axle, Y axle and Z axle of edge in the space coordinate system and remove, in order to drive ground glass spare removes, and the laser head that is used for launching ultrafast laser among the ultrafast laser also can freely rotate and remove, through processing platform with the removal of laser head or the modes such as laser focus of adjusting ultrafast laser, finally will the laser focus of the ultrafast laser of ultrafast laser transmission is adjusted extremely mark department is waited to in ground glass spare inside. Further, the wavelength of ultrafast laser emitted by the ultrafast laser is 355nm, and the pulse width is 5-25 ps; the laser lens of the ultrafast laser is a small focal length lens (for example, a lens with a focal length less than 24 mm). Because ultrafast laser pulse width is narrow, and is short with object interact time, and the peak power of ultrafast laser is higher than nanosecond laser far away, consequently the laser radium carving process of ultrafast laser has been ablated and removed the mark department of treating of correspondence in the ground glass in the ion energy transfer process to make ground glass spare avoid receiving the influence of radium carving in-process thermal shock, effectively guarantee that other positions of ground glass spare can not be because of being heated the change on the emergence performance (such as colour, brightness degree etc.).
S30, uniformly coating oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked; in this embodiment, because the miniature two-dimensional code of mark is observed through code reading equipment (for example, can discern the two-dimensional code reading equipment of miniature two-dimensional code, code reading equipment can cooperate the microscope to use) to final needs, consequently, select the oil mirror oil coating that is applicable to help code reading equipment to observe to predetermine the coating region for frosted glass spare's surface forms a level and smooth plane, and then solves the problem of the diffuse reflection of the rough surface of frosted glass spare to laser. Understandably, the preset coating area is located on the surface of the ground glass piece (the surface of the two opposite sides of the ground glass piece) corresponding to the to-be-marked position, the oil mirror oil is a transparent medium, the refractive index of the oil mirror oil is preferably close to that of the glass, the oil mirror oil meeting the requirements has high light transmittance, and the oil mirror oil is easy to clean, non-toxic, pollution-free and low in cost. Understandably, the preset coating area in step S30 refers to one surface or two opposite surfaces of the ground glass piece corresponding to the position to be marked. S40, acquiring two-dimension code parameters corresponding to the ground glass piece and processing technological parameters of the ultrafast laser, and marking a micro two-dimension code corresponding to the two-dimension code parameters at the position to be marked in the ground glass piece coated with the oil mirror oil according to the processing technological parameters.
Further, the processing parameters of the ultrafast laser include: the processing speed is 2-1000 mm/s, the laser frequency is 100-1000 KHZ, the Burst number is 1-7, the point spacing is 0.005-0.1 mm, and the laser power is 20-80% of the output power of the ultrafast laser. That is to say, the processing parameters can make the laser mark the clear micro two-dimensional code inside the glass successfully, and finally the effect that the length and the width of the laser engraving on the frosted glass piece with the roughness of 0.25-0.34um are both less than or equal to 0.2mm micro two-dimensional code (for example, the size is 0.2mm x 0.2mm) can be realized, and the micro two-dimensional code is clear and easy to read. Further, in step S40, before the obtaining of the two-dimensional code parameter corresponding to the ground glass piece and the processing parameter of the ultrafast laser, the method further includes:
and generating an image of a micro two-dimensional code according to the workpiece information of the ground glass piece, simultaneously acquiring the size of the micro two-dimensional code corresponding to the ground glass piece, and storing the size of the micro two-dimensional code and the image in an associated manner as the two-dimensional code parameter corresponding to the ground glass piece. That is, first, two-dimension code parameters of the frosted glass piece to be processed are set, the two-dimension code parameters include, but are not limited to, image parameters such as the size of the micro two-dimension code and the shape, format, color and the like of an image of the micro two-dimension code, the parameters of the micro two-dimension code can be automatically generated, the size of the micro two-dimension code of each frosted glass piece can be the same (belonging to the same type of frosted glass piece) or different (belonging to different types of frosted glass pieces), but the image of each micro two-dimension code is different, an image of the two-dimension code can be automatically generated according to the image parameters of the micro two-dimension code and the workpiece information of each frosted glass piece (at this time, the two-dimension code image is automatically associated with the workpiece information, the workpiece information includes the unique identifier of the frosted glass piece and the, thereafter, the control module can acquire the image of the automatically generated two-dimensional code, and then the size and the image of the miniature two-dimensional code are stored in an associated mode as the two-dimensional code parameters corresponding to the ground glass piece, and then the miniature two-dimensional code is marked according to the two-dimensional code parameters. Further, the length and the width of the miniature two-dimensional code are both less than or equal to 0.2 mm. Understandably, in an embodiment, the roughness of the surface of the ground glass piece is 0.25-0.34um, that is, in the present invention, the micro two-dimensional code (for example, the size is 0.2mm × 0.2mm) with the laser etching length and width smaller than or equal to 0.2mm can be realized on the ground glass piece with the roughness of 0.25-0.34um, and the micro two-dimensional code is clear and easy to read.
S50, when a first code reading instruction is received, reading the workpiece information of the frosted glass piece contained in the micro two-dimensional code at the position to be marked in the frosted glass piece through code reading equipment, and storing the preparation information of the frosted glass piece and the workpiece information in a correlation mode.
In an embodiment, if the predetermined coating area in step S30 is a surface of the ground glass piece corresponding to the position to be marked, the following steps are added before step S50 after the subsequent step S40 is completed: uniformly coating the oil mirror oil on the surface of the ground glass piece opposite to the preset coating area; that is, in this step, before the code reading device is used to observe and read the micro two-dimensional code marked inside the ground glass piece, a layer of oil paint is required to be uniformly applied to both surfaces of the ground glass piece, since in this embodiment, the process of applying the oil paint to one surface (i.e. the preset coating area) of the ground glass piece is already performed in step S30, it is necessary to apply the oil paint to the other surface opposite to the preset coating area before the micro two-dimensional code is observed in step S50 (if the oil paint applied to the preset coating area is also defective, the application is not uniform, or the oil amount is too small, at this time, the oil paint in the preset coating area needs to be additionally coated), so as to enter step S50 to perform observation by using the code reading device, thereby avoiding that the defects such as oil stains and scratches on the ground glass surface can cause the incomplete or unclear two-dimensional code in the field of vision, which severely interferes with the viewing and reading of the two-dimensional code.
In one embodiment, if the predetermined coating area in step S30 refers to two opposite surfaces of the ground glass piece corresponding to the position to be marked, if the oil paint applied in step S30 is sufficient and has not been damaged during the marking process in step S40, the process may directly proceed to step S50 to observe the ground glass piece using a code reading device; if one or two surfaces coated with the oil mirror oil are damaged to cause uneven coating or the oil amount is too small, at the moment, the two-dimensional code in the visual field is incomplete or unclear due to the oil stain, scratch and other defects on the surface of the frosted glass, the observation and reading of the two-dimensional code are seriously interfered, at the moment, the oil mirror oil is required to be continuously coated for one time according to the step S30 before the step S50, and the process of coating the oil mirror oil is not repeated herein. Understandably, the above-described determination as to whether or not the oil mirror oil on the surface to which the oil mirror oil has been applied is defective can be made by performing image recognition on an image taken of the surface.
The workpiece information retains all relevant state and source information and other information of the ground glass piece before marking the micro two-dimensional code, and simultaneously contains the unique identifier of the ground glass piece. The preparation information refers to information corresponding to other processing procedures of the ground glass piece after the micro two-dimensional code is marked. The first code reading instruction may be automatically generated after a preset storage key (both a physical key and a virtual key) is triggered, or may be automatically generated at a preset time point in the process of any one of the processing procedures after the micro two-dimensional code is marked (for example, before the processing, after the processing is completed, and at this time, new preparation information corresponding to the processing procedure is formed). That is, the step is mainly to record the preparation information of different processing procedures in the micro two-dimensional code in a correlated manner, so that the preparation information of the product in the manufacturing, circulating and using processes can be conveniently traced when the micro two-dimensional code is read.
According to the invention, the micro two-dimensional code can be successfully marked in the ground glass piece through the ultrafast laser, and the information (such as the workpiece information and the preparation information) stored in the micro two-dimensional code can be conveniently read, so that the preparation information of the product in the manufacturing, circulating and using processes and the like can be smoothly traced according to the information read in the micro two-dimensional code. Understandably, in the invention, the micro two-dimensional code can also be observed by other code reading equipment and can be used for correlating the preparation information of the ground glass piece so as to facilitate tracing the information in other marks which need laser etching.
Further, after the step S50, that is, after the step of associating the preparation information of the ground glass piece with the workpiece information, the method includes:
when a second code reading instruction is received, reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, calling the preparation information of the ground glass piece according to the workpiece information, and displaying the workpiece information and the preparation information of the ground glass piece on a current display interface. The second code reading instruction may be automatically generated after a preset reading key (either a physical key or a virtual key) is triggered, or may be automatically generated after one of the processing procedures is completed or at a specific time point such as a processing fault. That is, in this step, it is mainly for displaying the preparation information stored in association with the micro two-dimensional code on the current display interface for the user to view when a processing fault occurs or at a specific time point after a processing procedure is completed, so that the user can make measures according to the preparation information and workpiece information of the frosted glass piece (for example, the fault is resolved when the processing fault occurs, and the next processing procedure is continued after the current processing procedure is determined to be correct).
Further, evenly coating the oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked, and the method comprises the following steps:
absorb transparent and refracting index with the straw with the absolute value of the difference between frosted glass's the refracting index is less than predetermineeing the difference the oil-immersed mirror oil, and will absorb the oil-immersed mirror oil drip with treat that mark department corresponds predetermine the coating region, use soft doctor-bar will drip predetermine in the coating region the oil-immersed mirror oil is strickleed off, until the oil-immersed mirror oil covers uniformly predetermine the coating region surface. In the step, the oil mirror oil is firstly placed on the surface of the frosted glass by using a suction pipe, and then the oil drops are scraped by using a soft scraping blade (made of materials such as silica gel) with soft texture, so that the surface of the glass cannot be scratched, and scratches and the like are left. The soft scraping blade with softer texture is adopted to scrape oil drops off, so that the oil mirror oil is ensured to finally fill in the sunken part of the surface of the frosted glass piece (the surface finally formed by the oil mirror oil and the original rough surface of the frosted glass piece finally form a complete integral flat plane with the roughness reduced to a preset threshold value), the surface of the frosted glass piece forms a flat plane, and the problem of diffuse reflection of the rough surface of the frosted glass piece on laser is solved, therefore, the oil mirror oil dropping on the surface of the frosted glass piece only needs a small amount of oil, and the excessive oil amount needs to be hung off by the soft scraping blade, so that waste is caused; too few then can continue to make the surface of ground glass spare rough, still exist the diffuse reflection to laser, and then cause huge influence to the definition and the completeness of the miniature two-dimensional code of carving in the ground glass spare.
The invention also provides an ultrafast laser-based micro two-dimensional code inside-carving system in ground glass, which comprises a control module and ultrafast laser equipment connected with the control module, wherein the control module comprises:
the decontamination module is used for decontaminating the surface of the ground glass piece;
the focusing module is used for placing the ground glass piece subjected to decontamination treatment on a processing platform, and adjusting the laser focus of ultrafast laser emitted by the ultrafast laser to a position to be marked in the ground glass piece after the ultrafast laser is started;
the coating module is used for uniformly coating the oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked;
the marking module is used for acquiring two-dimensional code parameters corresponding to the ground glass piece and processing technological parameters of an ultrafast laser, and marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the to-be-marked position in the ground glass piece coated with the oil mirror oil according to the processing technological parameters;
and the code reading module is used for reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment when a first code reading instruction is received, and storing the preparation information of the ground glass piece and the workpiece information in a correlation manner.
For the specific definition of the control module, reference may be made to the definition of the ultrafast laser-based micro two-dimensional code inside frosted glass engraving method, which is not described herein again. It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an carving method in miniature two-dimensional code in ground glass based on ultrafast laser which characterized in that includes:
carrying out decontamination treatment on the surface of the ground glass piece;
placing the ground glass piece subjected to decontamination treatment on a processing platform, and after starting an ultrafast laser, adjusting the laser focus of ultrafast laser emitted by the ultrafast laser to a position to be marked in the ground glass piece;
uniformly coating oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked;
acquiring two-dimensional code parameters corresponding to the ground glass piece and processing technological parameters of an ultrafast laser, and marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the to-be-marked position in the ground glass piece coated with the oil-coated mirror oil according to the processing technological parameters;
when a first code reading instruction is received, reading workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, and storing preparation information of the ground glass piece and the workpiece information in a correlation mode.
2. The ultrafast laser-based frosted glass inner miniature two-dimensional code inner carving method of claim 1, wherein said associating the preparation information of the frosted glass piece with the workpiece information comprises:
when a second code reading instruction is received, reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment, calling the preparation information of the ground glass piece according to the workpiece information, and displaying the workpiece information and the preparation information of the ground glass piece on a current display interface.
3. The ground glass inner micro two-dimensional code inner carving method based on the ultrafast laser as claimed in claim 1, wherein the ultrafast laser emitted by the ultrafast laser has a wavelength of 355nm and a pulse width of 5-25 ps; the laser lens of the ultrafast laser is a small focal length lens.
4. The ultrafast laser-based micro two-dimensional code inside frosted glass engraving method of claim 1, wherein the desmutting treatment of the surface of the frosted glass member comprises:
and cleaning dirt and grease on the surface of the ground glass piece by using alcohol, and then airing the ground glass piece.
5. The ultrafast laser-based micro two-dimensional code inside frosted glass engraving method of claim 1, wherein the uniformly coating the predetermined coating area corresponding to the mark to be marked with the oil mirror oil with predetermined parameters comprises:
absorb transparent and refracting index with the straw with the absolute value of the difference between frosted glass's the refracting index is less than predetermineeing the difference the oil-immersed mirror oil, and will absorb the oil-immersed mirror oil drip with treat that mark department corresponds predetermine the coating region, use soft doctor-bar will drip predetermine in the coating region the oil-immersed mirror oil is strickleed off, until the oil-immersed mirror oil covers uniformly predetermine the coating region surface.
6. The ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method of claim 1, wherein the processing technological parameters of the ultrafast laser comprise: the processing speed is 2-1000 mm/s, the laser frequency is 100-1000 KHZ, the Burst number is 1-7, the point spacing is 0.005-0.1 mm, and the laser power is 20-80% of the output power of the ultrafast laser.
7. The method for engraving in a miniature two-dimensional code in ground glass based on ultrafast laser as claimed in claim 1, wherein before said obtaining the parameters of the two-dimensional code corresponding to said ground glass piece and the parameters of the processing technique of the ultrafast laser, further comprising:
and generating an image of a micro two-dimensional code according to the workpiece information of the ground glass piece, simultaneously acquiring the size of the micro two-dimensional code corresponding to the ground glass piece, and storing the size of the micro two-dimensional code and the image in an associated manner as the two-dimensional code parameter corresponding to the ground glass piece.
8. The ultrafast laser-based ground glass inner micro two-dimensional code inner carving method of claim 7, wherein the length and the width of the micro two-dimensional code are both less than or equal to 0.2 mm.
9. The ultrafast laser-based frosted glass inner miniature two-dimensional code inner carving method of claim 1, wherein the frosted glass member has a surface roughness of 0.25-0.34 um.
10. The utility model provides an carving system in miniature two-dimensional code in ground glass based on ultrafast laser, its characterized in that includes control module and connection control module's ultrafast laser equipment, control module includes:
the decontamination module is used for decontaminating the surface of the ground glass piece;
the focusing module is used for placing the ground glass piece subjected to decontamination treatment on a processing platform, and adjusting the laser focus of ultrafast laser emitted by the ultrafast laser to a position to be marked in the ground glass piece after the ultrafast laser is started;
the coating module is used for uniformly coating the oil mirror oil with preset parameters on a preset coating area corresponding to the position to be marked;
the marking module is used for acquiring two-dimensional code parameters corresponding to the ground glass piece and processing technological parameters of an ultrafast laser, and marking a micro two-dimensional code corresponding to the two-dimensional code parameters at the to-be-marked position in the ground glass piece coated with the oil mirror oil according to the processing technological parameters;
and the code reading module is used for reading the workpiece information of the ground glass piece contained in the micro two-dimensional code at the position to be marked in the ground glass piece through code reading equipment when a first code reading instruction is received, and storing the preparation information of the ground glass piece and the workpiece information in a correlation manner.
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| CN201911013712.6A CN112692435A (en) | 2019-10-23 | 2019-10-23 | Ultrafast laser-based ground glass inner miniature two-dimensional code inner carving method and system |
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