CN116551216B - Control method and device for carrying out laser cutting on pole piece and laser cutting equipment - Google Patents
Control method and device for carrying out laser cutting on pole piece and laser cutting equipment Download PDFInfo
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- CN116551216B CN116551216B CN202310828962.5A CN202310828962A CN116551216B CN 116551216 B CN116551216 B CN 116551216B CN 202310828962 A CN202310828962 A CN 202310828962A CN 116551216 B CN116551216 B CN 116551216B
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 445
- 230000007547 defect Effects 0.000 claims abstract description 228
- 230000002950 deficient Effects 0.000 claims abstract description 8
- 238000004590 computer program Methods 0.000 claims description 7
- 230000006870 function Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052744 lithium Inorganic materials 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003062 neural network model Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the invention discloses a control method for carrying out laser cutting on a pole piece, which is applied to laser cutting equipment for cutting a pole piece to be cut; the method comprises the following steps: controlling the first cutting head to cut for the first time according to the first cutting parameters based on preset first cutting parameters; acquiring an image based on a camera device, performing defect judgment on the acquired image based on machine vision, and acquiring a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting; adjusting a preset second cutting parameter based on the first defect parameter, and controlling the second cutting head to cut for the second time based on the adjusted second cutting parameter; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter. By adopting the method, the accuracy of cutting the polar plate can be improved, the defective rate can be reduced, and the battery quality of the lithium battery can be improved.
Description
Technical Field
The invention relates to the technical field of laser cutting and the technical field of machine vision, in particular to a control method and device for performing laser cutting on a pole piece and laser cutting equipment.
Background
Laser cutting is a non-contact process in which a laser is focused by a laser cutting head onto the surface of a material for thermal processing to complete cutting of the material. With the development of laser cutting technology, laser cutting can cut more and more materials, and good cutting effect is achieved.
In the field of lithium batteries, the pole piece is required to be cut in the manufacturing process of the lithium battery, and then further processing is carried out according to the pole piece obtained by cutting to obtain the lithium battery, if the pole piece cannot be accurately cut, or the pole piece after cutting has obvious defects, the quality or the yield of the lithium battery can be obviously reduced. Therefore, there is a need to provide a control method for laser cutting that accurately cuts the pole piece and can reduce the presence of defects in the pole piece.
Disclosure of Invention
Based on this, it is necessary to address the above-mentioned problems, and a control method, apparatus and laser cutting device for performing laser cutting on a pole piece are proposed.
In a first part of the invention, a control method for performing laser cutting on a pole piece is provided and is applied to laser cutting equipment, wherein the laser cutting equipment comprises a bearing platform and a cutting platform arranged above the bearing platform, a pole piece to be cut is placed on the cutting platform when performing laser cutting, the laser cutting equipment also comprises a plurality of laser cutting heads arranged above the cutting platform, and the plurality of laser cutting heads comprise a first cutting head and a second cutting head;
The method comprises the following steps:
controlling the pole piece to be cut to move to a preset processing station of the laser cutting equipment;
based on a preset first cutting parameter, controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameter;
acquiring an image of a pole piece to be cut after first cutting based on a camera device arranged above a bearing platform, and performing defect judgment on the acquired image based on machine vision to acquire a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting;
adjusting a preset second cutting parameter based on the first defect parameter, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter.
Optionally, the step of performing defect judgment on the collected image based on machine vision to obtain the first defect parameter further includes: performing defect judgment on the acquired image based on machine vision to acquire a second defect result, wherein the second defect result is a defect generated by non-cutting on the pole piece to be cut and the pole piece obtained by the first cutting; the step of adjusting the preset second cutting parameter based on the first defect parameter, controlling the second cutting head to cut the pole piece for the second time based on the adjusted second cutting parameter to obtain the target pole piece, and before the step of obtaining the target pole piece, further comprises the steps of: if a second defect result is obtained, judging whether the second defect result exceeds a preset defect threshold, if so, generating an abnormal prompt, and controlling the pole piece to be cut to move to a defective product discarding station connected with the cutting platform; if not, continuing to execute the step of adjusting the preset second cutting parameters based on the first defect parameters, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameters so as to obtain a target pole piece; and if the second defect result is not obtained, continuing to execute the step of adjusting the preset second cutting parameter based on the first defect parameter, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain the target pole piece.
Optionally, the step of adjusting the preset second cutting parameter based on the first defect parameter further includes: determining the defect quantity of the target pole piece in at least one dimension based on the first defect parameter; according to the corresponding relation between at least one dimension and the second cutting parameter, calculating the adjustment quantity of each sub-parameter of the defect quantity corresponding to the second cutting parameter of each dimension, and adjusting the second cutting parameter according to the adjustment quantity.
Optionally, the step of calculating an adjustment amount of the defect amount of each dimension corresponding to each sub-parameter of the second cutting parameter according to the correspondence between at least one dimension and the second cutting parameter, and adjusting the second cutting parameter according to the adjustment amount further includes: obtaining defect reference values of each dimension corresponding to the first cutting parametersIn each dimension, a defect reference value is calculated +.>And the determined defect amount->Difference between->The method comprises the steps of carrying out a first treatment on the surface of the At difference->If the difference value is greater than the preset difference value threshold value, determining a weighting coefficient corresponding to the difference value +.>The method comprises the steps of carrying out a first treatment on the surface of the According to the corresponding relation between the defect amount of each dimension and each sub-parameter of the second cutting parameter, generating an adjustment amount for adjusting the preset reference value of the second cutting parameter according to the difference value and the weighting coefficient ； wherein ,/>，/>，，/>For defect differences according to the respective dimensions->And calculating the function of the difference value on the adjustment quantity of the j-th sub-parameter of the second cutting parameter.
Optionally, the step of adjusting the preset second cutting parameter based on the first defect parameter further includes: determining a maximum defect position of one or more defects of the pole piece to be cut based on a first defect parameter; determining a cutting starting position of the second cutting according to the determined maximum defect; the step of controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter further comprises the following steps: and controlling the second cutting head to move to a cutting starting position of the second cutting, and controlling the second cutting head to cut the pole piece to be cut for the second time based on a second cutting parameter from the cutting starting position of the second cutting.
Optionally, the method further comprises: determining first cutting power according to a preset first cutting parameter, and generating a first cutting pulse corresponding to the first cutting power according to a preset first pulse generation mode; the step of controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameter based on the preset first cutting parameter further comprises: controlling a first cutting head to cut the pole piece to be cut according to a first cutting parameter based on the first cutting pulse; the method further comprises the steps of: determining second cutting power according to a preset second cutting parameter, and generating a second cutting pulse corresponding to the second cutting power according to a preset second pulse generation mode; wherein the pulse period of the first cutting pulse is smaller than the pulse period of the second cutting pulse, and the amplitude of the first cutting pulse is larger than the amplitude of the second cutting pulse.
Optionally, the step of calculating an adjustment amount of the defect amount of each dimension corresponding to each sub-parameter of the second cutting parameter according to the correspondence between at least one dimension and the second cutting parameter, and adjusting the second cutting parameter according to the adjustment amount further includes: determining second cutting power according to adjustment amounts of all sub-parameters of the second cutting parameter, wherein the adjustment amounts and the second cutting power are in an inverse relation; the pulse period and amplitude of the second cutting pulse are determined from the second cutting power, and the second cutting pulse is generated based on the determined pulse period and amplitude.
In a second part of the invention, a control device for performing laser cutting on a pole piece is provided and is applied to laser cutting equipment, the laser cutting equipment comprises a bearing platform and a cutting platform arranged above the bearing platform, the pole piece to be cut is placed on the cutting platform when performing laser cutting, the laser cutting equipment also comprises a plurality of laser cutting heads arranged above the cutting platform, and the plurality of laser cutting heads comprise a first cutting head and a second cutting head;
The device comprises:
the pole piece control module is used for controlling the pole piece to be cut to move to a preset processing station of the laser cutting equipment;
the first cutting module is used for controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameters based on preset first cutting parameters;
the device comprises a first defect detection module, a second defect detection module and a third defect detection module, wherein the first defect detection module is used for acquiring an image of a pole piece to be cut after first cutting based on a camera device arranged above a bearing platform, performing defect judgment on the acquired image based on machine vision, and acquiring a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting;
the second cutting module is used for adjusting preset second cutting parameters based on the first defect parameters and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameters so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter.
In a third aspect of the present invention there is provided a laser cutting apparatus comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the control method of laser cutting a pole piece as described in the first aspect of the present invention.
In a fourth aspect of the invention, there is provided a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of controlling laser cutting of a pole piece as described in the first aspect of the invention.
The embodiment of the invention has the following beneficial effects:
after the control method and the device for carrying out laser cutting on the pole piece and the laser cutting equipment are adopted, when the pole piece needs to be subjected to laser cutting, the pole piece to be cut is controlled to move to a preset processing station of the laser cutting equipment; based on the first cutting parameters, controlling a first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameters; acquiring an image of a pole piece to be cut after first cutting based on a camera device arranged above a bearing platform, and performing defect judgment on the acquired image based on machine vision to acquire a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting; adjusting a preset second cutting parameter based on the first defect parameter, and controlling a second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter. Through the two cutting processes of coarse cutting and fine cutting, the cutting accuracy can be controlled more accurately than the case of only performing one cutting; after the rough cutting is performed, defect judgment is performed on the cut pole piece in a machine vision mode, and relevant parameters of a subsequent fine cutting process are adjusted, so that more accurate laser cutting precision is achieved, subsequent cutting is performed under the condition that the defect is overlarge, and the production efficiency of the lithium battery is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
wherein ：
FIG. 1 is a schematic diagram showing the composition of a laser cutting apparatus according to one embodiment;
FIG. 2 is a flow chart of a method for controlling laser cutting of a pole piece according to one embodiment;
FIG. 3 is a schematic structural diagram of a control device for performing laser cutting on a polar plate according to an embodiment;
fig. 4 is a schematic structural diagram of a laser cutting device (computer device) for performing the above-mentioned control method for laser cutting a pole piece in one embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present embodiment, a laser cutting apparatus and a control method for performing laser cutting on a pole piece based on the laser cutting apparatus are provided.
In this embodiment, the laser cutting device is used for performing laser cutting on a lithium battery pole piece, so as to obtain a pole piece which can be further used in a manufacturing process of a lithium battery such as pole piece winding. The pole piece to be cut (pole piece to be cut) is placed and laser cutting equipment is controlled to cut the pole piece to be cut, and therefore the target pole piece meeting the requirements is obtained.
Before explaining how the control of laser cutting is performed, the structure of the laser cutting apparatus will be described first. Specifically, as shown in fig. 1, the laser cutting device 100 includes a carrying platform 101 and a cutting platform 102 disposed above the carrying platform 101 and connected to the carrying platform 101, where the pole piece 200 to be cut is placed on the cutting platform 102 when performing laser cutting, where the carrying platform 101 is not movable and rotatable, and the cutting platform 102 is movable and rotatable, and by controlling the direction and position of the cutting platform 102, the position of the pole piece to be cut can be controlled, so as to control the laser cutting.
Further, the laser cutting apparatus 100 further comprises a plurality of laser cutting heads 103 disposed above the cutting deck 102, the plurality of laser cutting heads 103 comprising a first cutting head 1031 and a second cutting head 1032; the first cutting head 1031 and the second cutting head 1032 may be used for different cutting procedures, different cutting processes, or different cutting accuracies.
Further, referring to fig. 2, the control method for performing laser cutting on the polar plate includes the following steps as shown in fig. 2:
step S102: and controlling the pole piece to be cut to move to a preset processing station of the laser cutting equipment.
Under the condition that pole piece cutting is required, the pole piece to be cut is controlled to move to a processing station on a cutting platform of the laser cutting equipment so as to facilitate the cutting of the pole piece to be cut.
Step S104: and controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameters based on the preset first cutting parameters.
The preset first cutting parameters are calculated according to a preset cutting parameter calculation program after the target of pole piece cutting is determined, wherein the second cutting parameters are also obtained. Here, the predetermined cutting parameter calculation program is a parameter according to the current laser cutting device, such as cutting precision, cutting head position, control precision of the cutting platform, etc., and may further include related parameters of the pole piece to be cut, such as related parameters of thickness, width, material, etc.
In this step, based on the first cutting parameters, the first cutting parameters are input into the laser cutting device, and then the first cutting head is controlled to cut the pole piece to be cut along the first cutting parameters, wherein the pole piece to be cut can be cut along the corresponding cutting track in the first cutting parameters.
Step S106: based on an image pickup device arranged above a bearing platform, acquiring an image of a pole piece to be cut after first cutting, and performing defect judgment on the acquired image based on machine vision to acquire a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting.
After the first cut is made, the accuracy of the first cut needs to be judged to determine whether to continue cutting according to a predetermined second cutting parameter or whether to adjust the second cutting parameter.
Specifically, after the first laser cutting, an image of the pole piece needs to be acquired through a camera device arranged above the bearing platform, and then defect analysis is performed on the acquired image based on a machine vision principle to obtain a defect identification result in the image, so that a first defect parameter corresponding to the identified defect identification result is determined. It should be noted that the first defect parameter here is a defect generated by cutting, not a defect existing in the pole piece to be cut itself.
Step S108: adjusting a preset second cutting parameter based on the first defect parameter, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter.
After the first cutting is performed, based on a first defect parameter obtained by a detector for a cutting result, and then, based on the first defect parameter, a second cutting parameter obtained by original calculation is adjusted so that the target pole piece after the second cutting is performed according to the second cutting parameter corresponds to the original target.
Specifically, in step S108, the step of adjusting the preset second cutting parameter based on the first defect parameter further includes:
step S1081: determining an amount of defects in at least one dimension based on the first defect parameter;
step S1082: according to the corresponding relation between at least one dimension and the second cutting parameter, calculating the adjustment quantity of each sub-parameter of the defect quantity corresponding to the second cutting parameter of each dimension, and adjusting the second cutting parameter according to the adjustment quantity.
The first defect parameter comprises defect pairs of the pole piece in multiple dimensionsThe indication of the correspondence, i.e. the amount of defects in each dimension。
Further, the specific implementation manner of step S1082 is as follows:
determining a defect amount in at least one corresponding dimension according to the first defect parameterWhere i=1, … …, n1, n1 is the number of dimensions here. Since in the present embodiment it is defined that 2 cuts are made, that is, the first cut is a certain allowed defect tolerance, i.e. the corresponding defect reference value of each dimension +.>. Therefore, here, it is necessary to acquire defect reference values +.>. Then in order to understand the difference between the currently existing defect and the tolerance of the preset defect, it is necessary to calculate the defect reference value +_in each dimension>And the determined defect amount->Difference between->. This difference indicates the extent to which the defect is outside the preset tolerance range in each dimension, since beyond this range, the originally predetermined second cutting parameter needs to be adjusted.
Specifically, in the process of adjusting the second cutting parameter, the difference value needs to be determined first Whether or not it is greater than a preset differenceIn the case of a threshold value, if not greater, the defect is considered smaller and may be disregarded or considered only in a predetermined manner, without additional consideration. If the defect is large, a weighting coefficient corresponding to the difference value needs to be further determinedThe method comprises the steps of carrying out a first treatment on the surface of the This coefficient increases the effect of the difference in subsequent calculations.
Specifically, according to the corresponding relation between the defect amount of each dimension and each sub-parameter of the second cutting parameter, according to the difference value and the weighting coefficient, an adjustment amount for adjusting the preset reference value of the second cutting parameter is generated；
wherein ,，，/>，for defect differences according to the respective dimensions->The function of the difference value on the adjustment amount of the j-th sub-parameter of the second cutting parameter is calculated, and a specific calculation formula of the function is not limited herein, and may be, for example, any function curve, or may be a calculation model such as a neural network model, etc., through which the adjustment amount can be more accurately calculated, thereby improving the accuracy of calculating the second cutting parameter.
As previously mentioned, the first defect results in defects resulting from the first cut, that is, the pole piece may also have defects resulting from non-cuts, such as defects in the pole piece itself, or deformations or other defects in the pole piece that are affected by the laser cutting process, which are typically not at the edge where the laser cut is located, but in the middle of the pole piece. Although this part of defects are not likely to be generated by cutting, the defect-containing pole piece enters the subsequent process, and the manufactured lithium battery has defects. Therefore, in the present embodiment, after step S106, the following steps are further included:
Step S1061: performing defect judgment on the acquired image based on machine vision to acquire a second defect result, wherein the second defect result is a defect generated by non-cutting on the pole piece to be cut and the pole piece obtained by the first cutting;
after step S1061, before step S108, further includes: step S1071: judging whether the second defect result exceeds a preset defect threshold, if so, executing step S1072: generating an abnormality prompt, and controlling the pole piece to be cut to move to a defective product discarding station connected with the cutting platform; if not, step S108 is performed.
Further, if the second defect result is not obtained in S1061, the process continues to step S108.
In the defect identification process, after the first defect parameters corresponding to the first defects are obtained, corresponding second defect results are further obtained, wherein the second defect results are defects generated by non-cutting on the pole piece to be cut and the pole piece obtained by the first cutting. The first defect and the second defect may be obtained during a process of identifying the defect, and then the defect is divided into a first defect and a second defect according to a position where the defect is located and a defect type, and corresponding first defect parameters and second defect parameters are generated.
If the second defect exists, the pole piece is not suitable for the subsequent process if the defect is larger, so the pole piece needs to be discarded, otherwise, if the second defect does not exist or the second defect is smaller, the pole piece further enters other processes in the next step.
Specifically, in this embodiment, after the second defect result is obtained, whether the second defect result exceeds a preset defect threshold is determined according to a second defect parameter corresponding to the second defect result, if yes, it is indicated that the pole piece has a larger defect, further generation of an abnormality prompt is required to remind a user, and the pole piece to be cut is controlled to move to a defective product discarding station connected with the cutting platform, so that the defective pole piece is prevented from entering the next stage and generating defective products.
It should be noted that in this embodiment, the defect is identified after the first cutting, instead of identifying the defect after the final laser cutting is completed, and the defect is found at an early point under the condition that the defect exists in the pole piece, so that the waste of redundant second cutting is avoided, and the production efficiency of the pole piece is improved.
Different cutting directions, cutting tracks and cutting positions have certain influence on the cutting precision, so that the cutting starting position can be further controlled in the second cutting process. In specific implementation, determining the maximum defect position of one or more defects of the pole piece to be cut based on a first defect parameter; the method comprises the steps of determining the defect degree of each defect according to one or more defects contained in a first defect result and parameters corresponding to the defects, determining the maximum defect position of the one or more defects according to the defect degree, and determining the cutting starting position of the second cutting according to the determined position corresponding to the maximum defect, wherein the cutting starting position of the second cutting is below the position of the maximum defect in a cutting track, and the distance between the cutting starting position and the cutting starting position is smaller than a preset value. In a specific implementation, the distance between the two is in positive correlation with the size of the area of the defect. In another embodiment, the distance between the two is also related to the type of defect, in particular the type of defect is related to the scaling factor of the positive correlation.
And then controlling the second cutting head to move to a cutting starting position of the second cutting in the process of controlling the second cutting head to cut for the second time, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the second cutting parameter from the cutting starting position of the second cutting.
Further, it should be noted that in this embodiment, different cutting heads are selected for the first cutting and the second cutting, because the precision and power required for the first cutting and the second cutting are different, and the requirements for the laser cutting heads are different, so different cutting heads can be used to control different precision requirements, so as to achieve better cutting effect.
As previously mentioned, the cutting power for the first cut and the second cut are different, wherein the cutting power is determined according to the cutting parameters. In the specific implementation, determining a first cutting power according to a preset first cutting parameter, and generating a first cutting pulse corresponding to the first cutting power according to a preset first pulse generation mode; and then controlling a first cutting head to cut the pole piece to be cut according to a first cutting parameter based on the first cutting pulse. Further, according to a preset second cutting parameter, determining a second cutting power, and generating a second cutting pulse corresponding to the second cutting power according to a preset second pulse generation mode.
Wherein the pulse period of the first cutting pulse is smaller than the pulse period of the second cutting pulse, and the amplitude of the first cutting pulse is larger than the amplitude of the second cutting pulse.
That is, in the first cutting, the cutting is rapidly completed to achieve the cutting effect, and then in the second cutting, the second cutting is completed slowly and precisely to achieve the precise control of each cutting detail, so as to achieve the optimal cutting effect, improve the cutting precision of the pole piece, and improve the battery quality of the lithium battery manufactured by the pole piece.
Further, in the second cutting, the cutting power and the cutting pulse thereof need to be adjusted in the process of adjusting the second cutting parameters. Specifically, determining second cutting power according to adjustment amounts of all sub-parameters of the second cutting parameter, wherein the adjustment amounts and the second cutting power are in an inverse relation; the pulse period and amplitude of the second cutting pulse are determined from the second cutting power, and the second cutting pulse is generated based on the determined pulse period and amplitude.
Further, the cutting of the pole piece is in multiple directions, so that the corresponding cutting requirements and cutting effects are different in different sizes and different cutting positions, that is, different cutting control is needed in different cutting positions. Thus, the corresponding cutting parameters are also different for different positions of the cut, e.g. different cutting powers, or different pulse periods and amplitudes of the cutting pulses.
Referring to fig. 3, a schematic structural diagram of a control device for laser cutting a pole piece is provided.
Wherein, the control device for carrying out laser cutting on the polar plate comprises:
the pole piece control module 301 is configured to control the pole piece to be cut to move to a preset processing station of the laser cutting device;
the first cutting module 302 is configured to control the first cutting head to perform a first cutting on the pole piece to be cut according to the first cutting parameter based on a preset first cutting parameter;
the first defect detection module 303 is configured to collect an image of a pole piece to be cut after the first cutting based on a camera device disposed above the carrying platform, perform defect judgment on the collected image based on machine vision, and obtain a first defect parameter, where the first defect parameter is a defect parameter corresponding to a defect generated by the cutting;
the second cutting module 304 is configured to adjust a preset second cutting parameter based on the first defect parameter, and control the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter, so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter.
In an alternative embodiment, as shown in fig. 3, the above-mentioned control device for performing laser cutting on a pole piece further includes a second defect detection module 305, configured to perform defect judgment on the acquired image based on machine vision, and obtain a second defect result, where the second defect result is a defect generated by non-cutting on the pole piece to be cut and on the pole piece obtained by the first cutting; if a second defect result is obtained, judging whether the second defect result exceeds a preset defect threshold, if so, generating an abnormal prompt, and controlling the pole piece to be cut to move to a defective product discarding station connected with the cutting platform; if not, a second cutting module 304 is invoked; and, if the second defect result is not obtained, the second cutting module 304 is invoked.
In an alternative embodiment, the second cutting module 304 is further configured to: determining the defect quantity of the target pole piece in at least one dimension based on the first defect parameter; according to the corresponding relation between at least one dimension and the second cutting parameter, calculating the adjustment quantity of each sub-parameter of the defect quantity corresponding to the second cutting parameter of each dimension, and adjusting the second cutting parameter according to the adjustment quantity.
In an alternative embodiment, the second cutting module 304 is further configured to: obtaining defect reference values of each dimension corresponding to the first cutting parametersIn each dimension, a defect reference value is calculated +.>And the determined defect amount->Difference betweenThe method comprises the steps of carrying out a first treatment on the surface of the At difference->If the difference value is greater than the preset difference value threshold value, determining a weighting coefficient corresponding to the difference value +.>The method comprises the steps of carrying out a first treatment on the surface of the According to the corresponding relation between the defect amount of each dimension and each sub-parameter of the second cutting parameter, generating an adjustment amount for adjusting the preset reference value of the second cutting parameter according to the difference value and the weighting coefficient>； wherein ,，/>，，/>for defect differences according to the respective dimensions->And calculating the function of the difference value on the adjustment quantity of the j-th sub-parameter of the second cutting parameter.
In an alternative embodiment, the second cutting module 304 is further configured to: determining a maximum defect position of one or more defects of the pole piece to be cut based on a first defect parameter; determining a cutting starting position of the second cutting according to the determined maximum defect; and controlling the second cutting head to move to a cutting starting position of the second cutting, and controlling the second cutting head to cut the pole piece to be cut for the second time based on a second cutting parameter from the cutting starting position of the second cutting.
In an alternative embodiment, the first cutting module 302 is further configured to: determining first cutting power according to a preset first cutting parameter, and generating a first cutting pulse corresponding to the first cutting power according to a preset first pulse generation mode; controlling a first cutting head to cut the pole piece to be cut according to a first cutting parameter based on the first cutting pulse;
in an alternative embodiment, the second cutting module 304 is further configured to: determining second cutting power according to a preset second cutting parameter, and generating a second cutting pulse corresponding to the second cutting power according to a preset second pulse generation mode; wherein the pulse period of the first cutting pulse is smaller than the pulse period of the second cutting pulse, and the amplitude of the first cutting pulse is larger than the amplitude of the second cutting pulse.
In an alternative embodiment, the second cutting module 304 is further configured to: determining second cutting power according to adjustment amounts of all sub-parameters of the second cutting parameter, wherein the adjustment amounts and the second cutting power are in an inverse relation; the pulse period and amplitude of the second cutting pulse are determined from the second cutting power, and the second cutting pulse is generated based on the determined pulse period and amplitude.
Fig. 4 shows an internal structural view of a laser cutting apparatus (computer apparatus) implementing the above-described control method of laser cutting a pole piece in one embodiment. As shown in fig. 4, the computer device includes a processor, a memory, and a network interface connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program which, when executed by a processor, causes the processor to implement the method described above. The internal memory may also have stored therein a computer program which, when executed by a processor, causes the processor to perform the method described above. It will be appreciated by persons skilled in the art that the architecture shown in fig. 4 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
After the control method and the device for carrying out laser cutting on the pole piece and the laser cutting equipment are adopted, when the pole piece needs to be subjected to laser cutting, the pole piece to be cut is controlled to move to a preset processing station of the laser cutting equipment; based on the first cutting parameters, controlling a first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameters; acquiring an image of a pole piece to be cut after first cutting based on a camera device arranged above a bearing platform, and performing defect judgment on the acquired image based on machine vision to acquire a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting; adjusting a preset second cutting parameter based on the first defect parameter, and controlling a second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter. Through the two cutting processes of coarse cutting and fine cutting, the cutting accuracy can be controlled more accurately than the case of only performing one cutting; after the rough cutting is performed, defect judgment is performed on the cut pole piece in a machine vision mode, and relevant parameters of a subsequent fine cutting process are adjusted, so that more accurate laser cutting precision is achieved, subsequent cutting is performed under the condition that the defect is overlarge, and the production efficiency of the lithium battery is improved.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. The control method for laser cutting of the pole piece is characterized by being applied to laser cutting equipment, wherein the laser cutting equipment comprises a bearing platform and a cutting platform arranged above the bearing platform, the pole piece to be cut is placed on the cutting platform when being subjected to laser cutting, the laser cutting equipment also comprises a plurality of laser cutting heads arranged above the cutting platform, and the plurality of laser cutting heads comprise a first cutting head and a second cutting head;
The method comprises the following steps:
controlling the pole piece to be cut to move to a preset processing station of the laser cutting equipment;
based on a preset first cutting parameter, controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameter;
acquiring an image of a pole piece to be cut after first cutting based on a camera device arranged above a bearing platform, and performing defect judgment on the acquired image based on machine vision to acquire a first defect parameter, wherein the first defect parameter is a defect parameter corresponding to a defect generated by cutting;
adjusting a preset second cutting parameter based on the first defect parameter, wherein the defect amount of the target pole piece in at least one dimension is determined based on the first defect parameter; according to the corresponding relation between at least one dimension and the second cutting parameter, calculating the adjustment quantity of each sub-parameter of the defect quantity corresponding to the second cutting parameter of each dimension, and adjusting the second cutting parameter according to the adjustment quantity;
controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameters so as to obtain a target pole piece; wherein the cutting power corresponding to the first cutting parameter is different from the cutting power corresponding to the second cutting parameter;
The step of calculating an adjustment amount of each sub-parameter of the second cutting parameter corresponding to the defect amount of each dimension according to the correspondence between at least one dimension and the second cutting parameter, and adjusting the second cutting parameter according to the adjustment amount, further includes:
obtaining defect reference values of each dimension corresponding to the first cutting parametersIn each dimension, calculating a defect reference valueAnd the determined defect amount->Difference between->The method comprises the steps of carrying out a first treatment on the surface of the Wherein i=1, … …, n1, n1 is the number of dimensions of the second cutting parameter;
at the difference valueIf the difference value is greater than the preset difference value threshold value, determining a weighting coefficient corresponding to the difference value +.>；
According to the corresponding relation between the defect amount of each dimension and each sub-parameter of the second cutting parameter, generating an adjustment amount for adjusting the preset reference value of the second cutting parameter according to the difference value and the weighting coefficientThe method comprises the steps of carrying out a first treatment on the surface of the Wherein j=1, … …, n2, n2 is the number of sub-parameters of the second cutting parameter;
wherein ,，…，/>，…，，/>for defect differences according to the respective dimensions->And calculating the function of the difference value on the adjustment quantity of the j-th sub-parameter of the second cutting parameter.
2. The method for controlling laser cutting of a polar plate according to claim 1, wherein the step of performing defect judgment on the acquired image based on machine vision to obtain the first defect parameter further comprises:
Performing defect judgment on the acquired image based on machine vision to acquire a second defect result, wherein the second defect result is a defect generated by non-cutting on the pole piece to be cut and the pole piece obtained by the first cutting;
the step of adjusting the preset second cutting parameter based on the first defect parameter, controlling the second cutting head to cut the pole piece for the second time based on the adjusted second cutting parameter to obtain the target pole piece, and before the step of obtaining the target pole piece, further comprises the steps of:
if a second defect result is obtained, judging whether the second defect result exceeds a preset defect threshold, if so, generating an abnormal prompt, and controlling the pole piece to be cut to move to a defective product discarding station connected with the cutting platform; if not, continuing to execute the step of adjusting the preset second cutting parameters based on the first defect parameters, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameters so as to obtain a target pole piece;
and if the second defect result is not obtained, continuing to execute the step of adjusting the preset second cutting parameter based on the first defect parameter, and controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter so as to obtain the target pole piece.
3. The method for controlling laser cutting of a polar plate according to claim 1, wherein the step of adjusting the preset second cutting parameter based on the first defect parameter further comprises:
determining a maximum defect position of one or more defects of the pole piece to be cut based on a first defect parameter;
determining a cutting starting position of the second cutting according to the determined maximum defect;
the step of controlling the second cutting head to cut the pole piece to be cut for the second time based on the adjusted second cutting parameter further comprises the following steps:
and controlling the second cutting head to move to a cutting starting position of the second cutting, and controlling the second cutting head to cut the pole piece to be cut for the second time based on a second cutting parameter from the cutting starting position of the second cutting.
4. The method of controlling laser cutting of a pole piece of claim 1, further comprising:
determining first cutting power according to a preset first cutting parameter, and generating a first cutting pulse corresponding to the first cutting power according to a preset first pulse generation mode;
the step of controlling the first cutting head to cut the pole piece to be cut for the first time according to the first cutting parameter based on the preset first cutting parameter further comprises: controlling a first cutting head to cut the pole piece to be cut according to a first cutting parameter based on the first cutting pulse;
The method further comprises the steps of: determining second cutting power according to a preset second cutting parameter, and generating a second cutting pulse corresponding to the second cutting power according to a preset second pulse generation mode; wherein the pulse period of the first cutting pulse is smaller than the pulse period of the second cutting pulse, and the amplitude of the first cutting pulse is larger than the amplitude of the second cutting pulse.
5. The method according to claim 4, wherein the step of calculating an adjustment amount of the defect amount of each dimension corresponding to each sub-parameter of the second cutting parameter according to the correspondence between at least one dimension and the second cutting parameter, and adjusting the second cutting parameter according to the adjustment amount, further comprises:
determining second cutting power according to adjustment amounts of all sub-parameters of the second cutting parameter, wherein the adjustment amounts and the second cutting power are in an inverse relation;
the pulse period and amplitude of the second cutting pulse are determined from the second cutting power, and the second cutting pulse is generated based on the determined pulse period and amplitude.
6. The control device for carrying out laser cutting on the pole piece is characterized by being applied to laser cutting equipment, wherein the laser cutting equipment comprises a bearing platform and a cutting platform arranged above the bearing platform, the pole piece to be cut is placed on the cutting platform when being subjected to laser cutting, the laser cutting equipment also comprises a plurality of laser cutting heads arranged above the cutting platform, and the plurality of laser cutting heads comprise a first cutting head and a second cutting head; wherein the control device for performing laser cutting on the pole piece is used for executing the control method for performing laser cutting on the pole piece according to any one of claims 1 to 5.
7. A laser cutting apparatus comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the control method of laser cutting a pole piece as claimed in any one of claims 1 to 5.
8. A computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the control method of laser cutting a pole piece as claimed in any one of claims 1 to 5.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183030U (en) * | 2010-12-20 | 2012-04-04 | 山西飞虹激光科技有限公司 | Intelligent computer numerical control system for laser cutting machine |
| CN111192307A (en) * | 2019-12-20 | 2020-05-22 | 广西柳州联耕科技有限公司 | Self-adaptive deviation rectifying method based on laser cutting of three-dimensional part |
| CN114029696A (en) * | 2021-11-08 | 2022-02-11 | 广东镭奔激光科技有限公司 | Laser cutting and laser micro-forging composite material increase and decrease repairing method and system for precision parts |
| CN114112311A (en) * | 2021-11-17 | 2022-03-01 | 深圳市大族数控科技股份有限公司 | Debugging method and device of laser processing equipment and storage medium |
| CN115138982A (en) * | 2022-06-22 | 2022-10-04 | 武汉光谷航天三江激光产业技术研究院有限公司 | Wafer laser invisible cutting cooperative detection method and system |
| CN115330989A (en) * | 2022-10-13 | 2022-11-11 | 南通红运金属科技有限公司 | Control method for laser beam cutting |
| CN115631138A (en) * | 2022-09-27 | 2023-01-20 | 华中科技大学 | Zirconium alloy plate laser cutting quality monitoring method and device |
| CN115890026A (en) * | 2021-08-06 | 2023-04-04 | 大族激光科技产业集团股份有限公司 | Laser cutting monitoring method and device and computer readable storage medium |
| CN116197554A (en) * | 2023-05-04 | 2023-06-02 | 济南邦德激光股份有限公司 | Automatic parameter guiding method and device for laser cutting numerical control system |
-
2023
- 2023-07-07 CN CN202310828962.5A patent/CN116551216B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183030U (en) * | 2010-12-20 | 2012-04-04 | 山西飞虹激光科技有限公司 | Intelligent computer numerical control system for laser cutting machine |
| CN111192307A (en) * | 2019-12-20 | 2020-05-22 | 广西柳州联耕科技有限公司 | Self-adaptive deviation rectifying method based on laser cutting of three-dimensional part |
| CN115890026A (en) * | 2021-08-06 | 2023-04-04 | 大族激光科技产业集团股份有限公司 | Laser cutting monitoring method and device and computer readable storage medium |
| CN114029696A (en) * | 2021-11-08 | 2022-02-11 | 广东镭奔激光科技有限公司 | Laser cutting and laser micro-forging composite material increase and decrease repairing method and system for precision parts |
| CN114112311A (en) * | 2021-11-17 | 2022-03-01 | 深圳市大族数控科技股份有限公司 | Debugging method and device of laser processing equipment and storage medium |
| CN115138982A (en) * | 2022-06-22 | 2022-10-04 | 武汉光谷航天三江激光产业技术研究院有限公司 | Wafer laser invisible cutting cooperative detection method and system |
| CN115631138A (en) * | 2022-09-27 | 2023-01-20 | 华中科技大学 | Zirconium alloy plate laser cutting quality monitoring method and device |
| CN115330989A (en) * | 2022-10-13 | 2022-11-11 | 南通红运金属科技有限公司 | Control method for laser beam cutting |
| CN116197554A (en) * | 2023-05-04 | 2023-06-02 | 济南邦德激光股份有限公司 | Automatic parameter guiding method and device for laser cutting numerical control system |
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