CN114137901A - Control method and device of laser ablation system and computer readable storage medium - Google Patents
Control method and device of laser ablation system and computer readable storage medium Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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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
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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Abstract
The invention discloses a control method, a device and a computer readable storage medium of a laser ablation system, wherein the method comprises the following steps: acquiring a 3D contour map of a workpiece to be machined, and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D contour map; when a workpiece to be processed has a curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed; determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information; and controlling the laser ablation system to successively ablate the depth-to-be-ablated curved surface corresponding to the workpiece to be processed according to the ablation power. The invention improves the precision of laser ablation.
Description
Technical Field
The present invention relates to the field of laser processing technologies, and in particular, to a method and an apparatus for controlling a laser ablation system, and a computer-readable storage medium.
Background
For some workpieces to be processed with high hot melt, the cross section of the next layer is heated when laser ablation is carried out, the ablation depth of the next layer is deepened if the next layer is to be ablated continuously, and the like, and finally the final layer is excessively ablated, so that the ablation accuracy is low.
Disclosure of Invention
The embodiment of the invention provides a control method and device of a laser ablation system and a computer readable storage medium, and aims to solve the technical problem of how to improve ablation accuracy.
The embodiment of the invention provides a control method of a laser ablation system, which comprises the following steps:
acquiring a 3D contour map of a workpiece to be machined, and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D contour map;
when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed;
determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information;
and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power.
In one embodiment, the step of determining the number of ablations according to the height and the ablation power corresponding to each ablation according to the material information comprises:
and taking the ratio of the height of the salient point to a preset stripping depth thickness value as the ablation times, and determining the corresponding ablation power of each time of ablation according to the material information.
In an embodiment, after the step of determining the ratio of the height of the salient point to the preset ablation depth value as the number of ablations and determining the ablation power corresponding to each ablation according to the material information, the method further includes:
and when the ratio is less than 1, outputting prompt information for adjusting the preset ablation power.
In an embodiment, after the step of determining the ratio of the height of the salient point to the preset ablation depth value as the number of ablations and determining the ablation power corresponding to each ablation according to the material information, the method further includes:
and when the ratio is not a positive integer, outputting prompt information for adjusting the ablation power corresponding to the last ablation time.
In an embodiment, the step of acquiring a 3D profile of the workpiece to be machined and determining whether the workpiece to be machined has a curved surface to be deeply stripped according to the 3D profile comprises:
acquiring a 3D contour map of a workpiece to be processed, and identifying whether bump image characteristics similar to preset bump image characteristics exist in the 3D contour map or not;
if the salient point image characteristics similar to the preset salient point image characteristics exist, determining that the 3D contour map has the curved surface to be stripped;
and if the salient point image characteristics similar to the preset salient point image characteristics do not exist, determining that the 3D contour map does not have the curved surface to be stripped.
In one embodiment, the step of determining the number of ablations according to the height and the ablation power corresponding to each ablation according to the material information comprises:
determining the number of times of ablation according to the height, and determining an attenuation coefficient corresponding to the material information corresponding to the workpiece to be processed;
and when the attenuation coefficient is not 1, taking the product of the preset ablation power and the attenuation coefficient as the corresponding ablation power of each ablation.
In an embodiment, after the step of taking the product of the preset ablation power and the attenuation coefficient as the ablation power corresponding to each ablation time when the attenuation coefficient is not 1, the method further includes:
and adjusting the ablation power corresponding to the last ablation time to be the preset frosting power.
In an embodiment, after the step of acquiring a 3D contour map of the workpiece to be processed and determining whether the workpiece to be processed has a curved surface to be stripped according to the 3D contour map, the method further includes:
and when the 3D contour map does not have the curved surface to be deeply stripped, outputting prompt information that the workpiece to be machined does not need to be deeply stripped.
The embodiment of the present invention further provides a control device of a laser ablation system, where the control device of the laser ablation system includes: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of controlling a laser ablation system as described above when executing the computer program.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the control method of the laser ablation system as described above.
In the technical scheme of the embodiment, a 3D contour map of a workpiece to be processed is obtained, and whether the workpiece to be processed has a curved surface to be stripped is determined according to the 3D contour map; when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed; determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information; and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power. The control device of the laser ablation system can acquire the 3D contour map of the workpiece to be machined, and determines whether the workpiece to be machined has a curved surface to be deeply ablated or not according to the 3D contour map, if so, the number of times of ablation is determined based on the height of the workpiece to be machined, then the power corresponding to each ablation is determined based on the material information of the workpiece to be machined, the ablation power of each ablation is flexibly adjusted through the material information, and the accuracy of laser ablation can be improved for the workpiece to be machined of certain specific materials.
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 hardware architecture diagram of a control device of a laser ablation system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a first embodiment of a method of controlling a laser ablation system in accordance with the present invention;
FIG. 3 is a schematic flow chart diagram illustrating a control method for a laser ablation system according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of a control method of a laser ablation system according to a third embodiment of the present invention:
FIG. 5 is a schematic flow chart diagram illustrating a fourth exemplary embodiment of a method of controlling a laser ablation system in accordance with the present invention;
FIG. 6 is a schematic flow chart diagram illustrating a fifth exemplary embodiment of a method of controlling a laser ablation system in accordance with the present invention;
fig. 7 is a flowchart illustrating a sixth exemplary embodiment of a method for controlling a laser ablation system according to the present invention.
Detailed Description
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The main solution of the invention is: acquiring a 3D contour map of a workpiece to be machined, and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D contour map; when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed; determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information; and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power.
The control device of the laser ablation system can acquire the 3D contour map of the workpiece to be machined, and determines whether the workpiece to be machined has a curved surface to be deeply ablated or not according to the 3D contour map, if so, the number of times of ablation is determined based on the height of the workpiece to be machined, then the power corresponding to each ablation is determined based on the material information of the workpiece to be machined, the ablation power of each ablation is flexibly adjusted through the material information, and the accuracy of laser ablation can be improved for the workpiece to be machined of certain specific materials.
As an implementation, the control device of the laser ablation system may be as in fig. 1.
The embodiment of the invention relates to a control device of a laser ablation system, which comprises: a processor 101, e.g. a CPU, a memory 102, a communication bus 103. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As in fig. 1, a detection program may be included in the memory 103 as a computer-readable storage medium; and the processor 101 may be configured to call the detection program stored in the memory 102 and perform the following operations:
acquiring a 3D contour map of a workpiece to be machined, and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D contour map;
when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed;
determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information;
and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
and taking the ratio of the height of the salient point to a preset stripping depth thickness value as the ablation times, and determining the corresponding ablation power of each time of ablation according to the material information.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
and when the ratio is less than 1, outputting prompt information for adjusting the preset ablation power.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
and when the ratio is not a positive integer, outputting prompt information for adjusting the ablation power corresponding to the last ablation time.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
acquiring a 3D contour map of a workpiece to be processed, and identifying whether bump image characteristics similar to preset bump image characteristics exist in the 3D contour map or not;
if the salient point image characteristics similar to the preset salient point image characteristics exist, determining that the 3D contour map has the curved surface to be stripped;
and if the salient point image characteristics similar to the preset salient point image characteristics do not exist, determining that the 3D contour map does not have the curved surface to be stripped.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
determining the number of times of ablation according to the height, and determining an attenuation coefficient corresponding to the material information corresponding to the workpiece to be processed;
and when the attenuation coefficient is not 1, taking the product of the preset ablation power and the attenuation coefficient as the corresponding ablation power of each ablation.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
and adjusting the ablation power corresponding to the last ablation time to be the preset frosting power.
In one embodiment, the processor 101 may be configured to call a detection program stored in the memory 102 and perform the following operations:
and when the 3D contour map does not have the curved surface to be deeply stripped, outputting prompt information that the workpiece to be machined does not need to be deeply stripped.
In the technical scheme of the embodiment, a 3D contour map of a workpiece to be processed is obtained, and whether the workpiece to be processed has a curved surface to be stripped is determined according to the 3D contour map; when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed; determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information; and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power. The control device of the laser ablation system can acquire the 3D contour map of the workpiece to be machined, and determines whether the workpiece to be machined has a curved surface to be deeply ablated or not according to the 3D contour map, if so, the number of times of ablation is determined based on the height of the workpiece to be machined, then the power corresponding to each ablation is determined based on the material information of the workpiece to be machined, the ablation power of each ablation is flexibly adjusted through the material information, and the accuracy of laser ablation can be improved for the workpiece to be machined of certain specific materials.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 2, fig. 2 is a first embodiment of a control method of the laser ablation system of the present invention, the method comprising the steps of:
step S10, acquiring a 3D contour map of the workpiece to be processed, and determining whether the workpiece to be processed has a curved surface to be stripped according to the 3D contour map.
The processing technology is a technology for cutting, welding, surface processing, punching, micromachining materials (including metals and nonmetals) by utilizing the interaction characteristic of laser beams and substances, and is used as a light source and an object recognition technology, and the laser processing technology is the most widely applied traditional technology. The laser technology is a comprehensive technology of multiple subjects such as light, mechanical, electrical, material and detection, and traditionally, the research range of the laser technology can be generally divided into:
1. a laser processing system. The device comprises a laser, a light guide system, a processing machine tool, a control system and a detection system.
2. And (3) laser processing technology. The method comprises various processing technologies such as cutting, welding, surface treatment, punching, marking, scribing, micro-carving and the like.
Laser welding: the sealing device comprises a thick thin plate of an automobile body, automobile parts, lithium batteries, a cardiac pacemaker, a sealing relay and other sealing devices and various devices which do not allow welding pollution and deformation. Currently used lasers are YAG lasers, CO2 lasers and semiconductor pump lasers.
Laser cutting: the cutting tool comprises a cutting tool, a circular saw blade, acrylic, a spring gasket, a copper plate for electronic parts with the thickness of less than 2mm, a metal mesh plate, a steel pipe, a tinned iron plate, a lead-plated steel plate, phosphor bronze, an bakelite plate, a thin aluminum alloy, quartz glass, silicon rubber, an aluminum oxide ceramic plate with the thickness of less than 1mm, a titanium alloy used in the aerospace industry and the like. The lasers used are a YAG laser and a CO2 laser.
Laser treatment: can be used for operation, relieving pain and reducing infection.
Laser marking: the laser is widely applied to various materials and almost all industries, and the currently used lasers include a YAG laser, a CO2 laser and a semiconductor pump laser.
Laser drilling: laser drilling is mainly applied to the industries of aerospace, automobile manufacturing, electronic instruments, chemical engineering and the like. The rapid development of laser drilling is mainly characterized in that the average output power of a YAG laser for drilling is increased to 800 w-1000 w from 400w 5 years ago. The current mature laser drilling in China is applied to the production of artificial diamond and natural diamond wire drawing dies and the production of industries such as jewel bearings of clocks and watches and instruments, airplane blades, multilayer printed circuit boards and the like. The lasers currently used are mainly YAG lasers and CO2 lasers, and some excimer lasers, isotope lasers and semiconductor pump lasers are also available.
Laser heat treatment: the method is widely applied to the automobile industry, such as heat treatment of cylinder sleeves, crankshafts, piston rings, commutators, gears and other parts, and is also widely applied to the aerospace industry, the machine tool industry and other mechanical industries. The laser heat treatment application in China is far wider than that in foreign countries. The laser used at present is mainly a YAG laser, and a CO2 laser.
Laser rapid forming: the laser processing technology is combined with the computer numerical control technology and the flexible manufacturing technology. Is mainly used in the mold and model industries. Most of the currently used lasers are YAG lasers and CO2 lasers.
Laser coating: the method is widely applied to aerospace, mold and electromechanical industries. Most of the currently used lasers are high-power YAG lasers and CO2 lasers.
Laser imaging: the laser beam is used for scanning an object, the reflected light beam is reflected back, and the obtained arrangement sequence is different for imaging. The image formed is reflected by the image fall. The laser imaging has the detection capability of beyond visual range, can be used for satellite laser scanning imaging, and is used in the scientific and technological fields of remote sensing mapping and the like in the future.
In the embodiment, the workpiece to be processed is ablated through laser so as to realize the deep stripping of the salient points of the workpiece to be processed, and the 3D line laser camera is controlled by upper computer software to trigger the image acquisition. The method comprises the steps that X3 linear module scanning is carried out, a 3D line laser camera collects spatial information of a measured object into image and coordinate point information, specifically, a 3D outline of a workpiece to be processed is obtained through the 3D line laser camera, the 3D line laser camera is used for collecting spatial structure information of the workpiece to be processed, so that a corresponding 3D outline is obtained, two-dimensional coordinates (Y, Z) or (X, Z) of the measured object can be obtained in a static state, the 3D line laser can scan the whole surface to obtain three-dimensional coordinates (X, Y, Z), and when the 3D outline of the workpiece to be processed is obtained, whether a curved surface to be stripped exists or not can be judged.
Optionally, identifying whether bump image features similar to preset bump image features exist in the 3D contour map; if the salient point image characteristics similar to the preset salient point image characteristics exist, determining that the 3D contour map has the curved surface to be stripped; and if the salient point image characteristics similar to the preset salient point image characteristics do not exist, determining that the 3D contour map does not have the curved surface to be stripped. Whether the workpiece to be machined needs to be machined is determined in advance by determining whether the curved surface to be stripped exists or not.
Step S20, when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed.
In the embodiment, a thermodynamic diagram corresponding to the 3D contour diagram is determined, and the height of the curved surface to be stripped is determined through the thermodynamic diagram; the control device of the laser ablation system can control the laser ablation system to detect the material information of the workpiece to be processed.
Optionally, the laser ablation system detects the electronic tag preset on the workpiece to be processed, so as to determine material information corresponding to the workpiece to be processed.
Optionally, the material of the workpiece to be processed may be detected, so as to determine material information corresponding to the workpiece to be processed.
And step S30, determining the number of times of ablation according to the height, and determining the corresponding ablation power of each ablation according to the material information.
In the embodiment, considering that the height reaches a certain value, the stripping depth of the convex point can not be completed by one-time ablation, so that the ablation times corresponding to the height of the convex point can be determined, the convex point is ablated for multiple times, and the stripping depth of the convex point of the workpiece to be processed is further completed.
And step S40, controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-processed workpiece according to the ablation power.
In the technical scheme of this embodiment, because the control device of the laser ablation system can acquire the 3D profile of the workpiece to be processed, and determine whether the workpiece to be processed has the curved surface to be deeply stripped according to the 3D profile, if yes, the number of times of ablation is determined based on the height of the workpiece to be processed, then the power corresponding to each ablation is determined based on the material information of the workpiece to be processed, the ablation power of each ablation is flexibly adjusted through the material information, and the accuracy of laser ablation can be improved for the workpiece to be processed made of certain specific materials.
Referring to fig. 3, fig. 3 is a second embodiment of the control method of the laser ablation system of the present invention, and based on the first embodiment, step S30 includes:
and step S31, taking the ratio of the height of the salient point to a preset stripping depth thickness value as the ablation times, and determining the corresponding ablation power of each ablation according to the material information.
In this embodiment, the ratio of the height of the bump to the preset stripping depth thickness value is a positive integer, and when there is a decimal, only the decimal is included, for example: the ratio of the height of the salient point to the preset stripping depth thickness value is 7-8, and 8 is taken.
In the technical scheme of the embodiment, the corresponding ablation times can be automatically determined based on the height of the workpiece to be processed, the power of each ablation is determined, and the intelligent degree of the ablation is improved.
Referring to fig. 4, fig. 4 is a third embodiment of the control method of the laser ablation system according to the present invention, based on any one of the first to second embodiments, after step S31, the method further includes:
and step S32, outputting prompt information for adjusting the preset ablation power when the ratio is less than 1.
In the technical scheme of this embodiment, when the ratio of the height of the bump to the preset stripping depth thickness value is smaller than 1, it is determined that the height of the bump is smaller than the preset stripping depth thickness value, and in consideration that the preset stripping depth thickness value is often an optimal value set based on the highest precision, if the height is smaller than the preset stripping depth thickness, it is considered that adjusting the preset stripping depth thickness may affect the stripping depth precision of the workpiece to be processed, and therefore, prompt information for adjusting the preset ablation power can be output, so that a manager can adjust the preset ablation power to the ablation power corresponding to the height of the bump.
Referring to fig. 5, fig. 5 is a fourth embodiment of the control method of the laser ablation system according to the present invention, based on any one of the first to third embodiments, after step S31, the method further includes:
and step S33, when the ratio is not a positive integer, outputting prompt information for adjusting the ablation power corresponding to the last ablation time.
In this embodiment, when the ratio is not a positive integer, it is determined that the power of the last ablation cannot use the preset ablation power, and therefore, a prompt message for adjusting the ablation power corresponding to the number of times of the last ablation may be output. For example: and if the ratio is between 7 and 8, the ablation frequency is 8, and the power for adjusting the eighth ablation is output.
Optionally, the ablation power corresponding to the last ablation time is adjusted to be the preset frosting power. Because the ablation precision corresponding to the frosted power is higher, the frosted power is used in the last ablation power, and the ablation precision can be further improved.
In the technical scheme of this embodiment, when the height value of the salient point of the workpiece to be processed is great, through this embodiment, only need the power of the last time of manual regulation ablation can realize waiting to process the peeling of the salient point of the workpiece to be processed deeply, increased the convenience of ablating the salient point of the workpiece to be processed.
Referring to fig. 6, fig. 6 is a fifth embodiment of the control method of the laser ablation system according to the present invention, and based on any one of the first to fourth embodiments, step S30 includes:
and step S34, determining the number of times of ablation according to the height, and determining the attenuation coefficient corresponding to the material information corresponding to the workpiece to be processed.
In this embodiment, the control device of the laser ablation system stores a mapping table of material information and attenuation coefficient in advance, and after determining the material information of the workpiece to be processed, the control device can determine the corresponding attenuation coefficient based on the material information.
Step S35, when the attenuation coefficient is not 1, taking the product of the preset ablation power and the attenuation coefficient as the corresponding ablation power for each ablation.
In this embodiment, the attenuation coefficient is 1, it is determined that the workpiece to be processed is not a characteristic material, and the preset ablation power is directly used as the ablation power without attenuating the preset ablation power.
In the technical scheme of this embodiment, through the corresponding relation between different material information and attenuation coefficient, can select more suitable ablation power to different materials, and then improve the precision of ablating.
Referring to fig. 7, fig. 7 is a sixth embodiment of the control method of the laser ablation system according to the present invention, based on any one of the first to fifth embodiments, after step S10, the method further includes:
and step S50, when the 3D contour map does not have the curved surface to be deeply stripped, outputting prompt information that the workpiece to be machined does not need to be deeply stripped.
In the technical scheme of this embodiment, if it is determined that there is no curved surface to be deeply stripped based on the 3D profile map, it is determined that the workpiece to be machined does not need to be machined, and this embodiment does not need to manually confirm whether the workpiece to be machined needs to be subjected to elimination of the salient points, and also outputs prompt information that the workpiece to be machined does not need to be deeply stripped so that a manager can timely know the prompt information.
In order to achieve the above object, an embodiment of the present invention further provides a control device of a laser ablation system, where the control device of the laser ablation system includes: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of controlling a laser ablation system as described above when executing the computer program.
To achieve the above object, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the control method of the laser ablation system as described above.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a network configuration product program embodied on one or more computer-usable computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing laser ablation system control apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing laser ablation system control apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method of controlling a laser ablation system, comprising the steps of:
acquiring a 3D contour map of a workpiece to be machined, and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D contour map;
when the workpiece to be processed has the curved surface to be stripped, acquiring the height corresponding to the salient point of the curved surface to be stripped and the material information corresponding to the workpiece to be processed;
determining the number of times of ablation according to the height, and determining the corresponding ablation power of each time of ablation according to the material information;
and controlling a laser ablation system to perform successive ablation on the to-be-stripped curved surface corresponding to the to-be-machined workpiece according to the ablation power.
2. The method of controlling a laser ablation system according to claim 1, wherein the steps of determining a number of ablations based on the height and determining an ablation power corresponding to each ablation based on the material information comprise:
and taking the ratio of the height of the salient point to a preset stripping depth thickness value as the ablation times, and determining the corresponding ablation power of each time of ablation according to the material information.
3. The method for controlling a laser ablation system according to claim 2, wherein after the step of determining the ratio of the height of the salient point to the preset ablation depth value as the ablation times and determining the ablation power corresponding to each ablation according to the material information, the method further comprises:
and when the ratio is less than 1, outputting prompt information for adjusting the preset ablation power.
4. The method for controlling a laser ablation system according to claim 2, wherein after the step of determining the ratio of the height of the salient point to the preset ablation depth value as the ablation times and determining the ablation power corresponding to each ablation according to the material information, the method further comprises:
and when the ratio is not a positive integer, outputting prompt information for adjusting the ablation power corresponding to the last ablation time.
5. The method for controlling a laser ablation system according to claim 1, wherein the step of acquiring a 3D profile of the workpiece to be machined and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D profile comprises:
acquiring a 3D contour map of a workpiece to be processed, and identifying whether bump image characteristics similar to preset bump image characteristics exist in the 3D contour map or not;
if the salient point image characteristics similar to the preset salient point image characteristics exist, determining that the 3D contour map has the curved surface to be stripped;
and if the salient point image characteristics similar to the preset salient point image characteristics do not exist, determining that the 3D contour map does not have the curved surface to be stripped.
6. The method of controlling a laser ablation system according to claim 1, wherein the steps of determining a number of ablations based on the height and determining an ablation power corresponding to each ablation based on the material information comprise:
determining the number of times of ablation according to the height, and determining an attenuation coefficient corresponding to the material information corresponding to the workpiece to be processed;
and when the attenuation coefficient is not 1, taking the product of the preset ablation power and the attenuation coefficient as the corresponding ablation power of each ablation.
7. The method for controlling a laser ablation system according to claim 6, wherein after the step of taking the product of the preset ablation power and the attenuation coefficient as the ablation power corresponding to the number of times of each ablation when the attenuation coefficient is not 1, the method further comprises:
and adjusting the ablation power corresponding to the last ablation time to be the preset frosting power.
8. The method for controlling a laser ablation system according to claim 1, wherein after the step of obtaining a 3D profile of the workpiece to be machined and determining whether the workpiece to be machined has a curved surface to be stripped according to the 3D profile, the method further comprises:
and when the 3D contour map does not have the curved surface to be deeply stripped, outputting prompt information that the workpiece to be machined does not need to be deeply stripped.
9. A control device for a laser ablation system, the control device comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of controlling a laser ablation system according to any of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of a method of controlling a laser ablation system according to any one of claims 1 to 8.
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