CN116979124A - Explosion-proof valve production process control method and system for battery aluminum shell - Google Patents
Explosion-proof valve production process control method and system for battery aluminum shell Download PDFInfo
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- CN116979124A CN116979124A CN202311001320.4A CN202311001320A CN116979124A CN 116979124 A CN116979124 A CN 116979124A CN 202311001320 A CN202311001320 A CN 202311001320A CN 116979124 A CN116979124 A CN 116979124A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004080 punching Methods 0.000 claims abstract description 178
- 238000003466 welding Methods 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 9
- 238000010329 laser etching Methods 0.000 claims description 59
- 238000012360 testing method Methods 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 16
- 230000007547 defect Effects 0.000 claims description 10
- 238000012795 verification Methods 0.000 claims description 8
- 238000005457 optimization Methods 0.000 claims description 7
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application discloses a method and a system for controlling the production process of an explosion-proof valve of a battery aluminum shell, which relate to the technical field of production process control, and comprise the following steps: constructing a basic data set of the battery aluminum shell, and reading production line data construction; setting punching and positioning association; positioning the uncoiled battery aluminum shell raw material through the punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed; acquiring punching surface data through a depth sensor, and constructing a punching feedback data set; generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material; the assembly welding result is recorded, production control is carried out according to the assembly welding result and the punching feedback data set, the problem that production accuracy is low due to insufficient rigor in production control work of the explosion-proof valve in the prior art is solved, and reasonable and accurate management and control on production of the explosion-proof valve are realized.
Description
Technical Field
The application relates to the technical field of production process control, in particular to a method and a system for controlling the production process of an explosion-proof valve of a battery aluminum shell.
Background
Along with the high-speed development of social economy and the continuous improvement of the requirements of people on batteries, the production process of the explosion-proof valve of the battery aluminum shell is also continuously developed, and the explosion-proof valve is an important component part of the battery shell and plays an important role. The explosion-proof valve can effectively prevent gas leakage caused by overhigh internal pressure of the battery, and is automatically opened and pressure is released once the internal pressure of the battery exceeds a preset threshold value, so that the battery is prevented from exploding, the design is simpler on a battery shell, the design and the manufacture are lower in cost, and the explosion-proof valve has very important significance in preventing potential safety hazards of battery use and improving the safety of battery use.
The problem that the production control work of the explosion-proof valve in the prior art is low in production accuracy due to insufficient rigor, so that the production work of the explosion-proof valve cannot be rationalized and accurately controlled.
Disclosure of Invention
The application provides a control method and a control system for an explosion-proof valve production process of a battery aluminum shell, which solve the problem of low production accuracy caused by insufficient rigor of the explosion-proof valve production control work in the prior art, and realize reasonable and accurate control on the explosion-proof valve production.
In view of the above problems, the application provides a method and a system for controlling the production process of an explosion-proof valve of a battery aluminum shell.
In a first aspect, the application provides a method for controlling a production process of an explosion-proof valve of a battery aluminum shell, which comprises the following steps: by constructing a basic data set of the battery aluminum shell, the basic data set is connected through a production line, and a production line data component is read, wherein the basic data set comprises calibration size data and explosion-proof valve position data; setting punching positioning association, wherein the punching positioning association is the distance association between the assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more; positioning the uncoiled battery aluminum shell raw material through punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed; acquiring punching surface data through a depth sensor, and constructing a punching feedback data set; generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material; and recording an assembly welding result, and carrying out production control according to the assembly welding result and the punching feedback data set.
In a second aspect, the application provides an explosion-proof valve production process control system for a battery aluminum shell, the system comprising: the data set construction module: constructing a basic data set of the battery aluminum shell, wherein the basic data set is used for reading a production line data component by establishing production line connection, and the basic data set comprises calibration size data and explosion-proof valve position data; and the association setting module is used for: setting punching positioning association, wherein the punching positioning association is the distance association between an assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more; and (3) an association positioning module: positioning the uncoiled battery aluminum shell raw material through the punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed; and a data acquisition module: acquiring punching surface data through a depth sensor, and constructing a punching feedback data set; and (3) assembling a compensation module: generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material; and a production control module: and recording an assembly welding result, and carrying out production control according to the assembly welding result and the punching feedback data set.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
according to the application, a basic data set of the battery aluminum shell is constructed, the basic data set is connected through a production line, a production line data member is read, then punching positioning association is set, the punching positioning association is the distance association between an assembly hole and positioning characteristics, the positioning characteristics are one or more, the uncoiled battery aluminum shell raw material is positioned through the punching positioning association, when positioning is finished, punching control of the assembly hole is executed through preset control parameters, punching surface data acquisition is carried out through a depth sensor, a punching feedback data set is constructed, assembly compensation is generated according to the punching feedback data set, assembly welding is controlled to be carried out on the explosion-proof valve and the battery aluminum shell raw material, the assembly welding result is recorded, and finally production control is carried out according to the assembly welding result and the punching feedback data set. The problem of the explosion-proof valve production control work that exists among the prior art because not strict enough leads to production precision lower is solved, the rationalization accurate management and control about explosion-proof valve production has been realized.
Drawings
FIG. 1 is a schematic flow diagram of a process control method for manufacturing an explosion-proof valve for an aluminum battery case;
fig. 2 is a schematic structural diagram of an explosion-proof valve production process control system for a battery aluminum case.
Reference numerals illustrate: the system comprises a data set construction module a, a correlation setting module b, a correlation positioning module c, a data acquisition module d, an assembly compensation module e and a production control module f.
Detailed Description
According to the application, a basic data set of the battery aluminum shell is constructed, and the basic data set is connected through a production line, so that a production line data component is read, wherein the basic data set comprises calibration size data and explosion-proof valve position data; setting punching positioning association, wherein the punching positioning association is the distance association between the assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more; positioning the uncoiled battery aluminum shell raw material through punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed; acquiring punching surface data through a depth sensor, and constructing a punching feedback data set; generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material; the assembly welding result is recorded, production control is carried out according to the assembly welding result and the punching feedback data set, the problem that production accuracy is low due to insufficient rigor in the production control work of the explosion-proof valve in the prior art is solved, and reasonable and accurate management and control on production of the explosion-proof valve are realized.
Example 1
As shown in fig. 1, the application provides a method for controlling the production process of an explosion-proof valve of a battery aluminum shell, which comprises the following steps:
constructing a basic data set of the battery aluminum shell, wherein the basic data set is used for reading a production line data component by establishing production line connection, and the basic data set comprises calibration size data and explosion-proof valve position data;
the basic data set refers to the calibration size data and the explosion-proof valve position data of the battery aluminum shell, and the calibration size is the basic size of the battery aluminum shell and comprises length, width, height and other size information; the explosion-proof valve position data is obtained by welding the explosion-proof valve at the position of the battery aluminum shell, and the explosion-proof valve position needs to be obtained because the explosion-proof valve is required to be punched and then welded. The system is in communication connection with a production line of the battery aluminum shell, reads data such as a size scanning result on the production line, acquires basic data of the battery aluminum shell, adds the basic data into a basic data set, and can directly acquire real-time data of the battery aluminum shell by establishing connection with the production line so as to follow up production requirements in time to make adjustments.
Setting punching positioning association, wherein the punching positioning association is the distance association between an assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more;
the positioning holes are fixing holes for accurately placing the positions, the battery aluminum shell is fixed through the positioning holes, the battery aluminum shell is perforated, the perforation unknown accuracy can be increased, the perforation positioning effect is achieved, but damage is caused to the battery aluminum shell, the positioning holes are subjected to feature extraction, the battery aluminum shell is fixed according to the positioning hole features, the perforation positioning effect is improved, namely, the position data of the positioning holes are extracted through a basic data set, the position data of the positioning holes and the position data of the assembly holes are subjected to feature extraction, the positioning assembly features are obtained, namely, the positioning features of the positioning holes are extracted according to the positioning assembly features, the positioning features are related to the assembly holes in a distance mode, a relation set between the positioning features and the assembly holes is constructed, and the obtained relation set is called perforation positioning association. The positioning holes are not unique, and the corresponding positioning features are not unique, so that the punching accuracy can be improved by setting the punching positioning association, and the accuracy of overall production is further improved.
Positioning the uncoiled battery aluminum shell raw material through the punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed;
uncoiling is carried out on the raw material of the battery aluminum shell, namely the coiled raw material of the battery aluminum shell is uncoiled, so that the coiled raw material of the battery aluminum shell is convenient to process and use subsequently. And (3) unreeling the aluminum shell raw material by using a spiral coil on a reel in a mechanical mode and the like, and slowly conveying the unreeled battery aluminum shell raw material to a next working procedure for processing through a conveying system. And carrying out cold bending forming treatment on the uncoiled aluminum shell raw material, folding the aluminum shell raw material which is unfolded into a plane for three times according to parameters in a basic data set, welding the aluminum shell raw material to obtain a hollow cuboid with four faces, and cutting the cuboid according to the basic data set to obtain the integral shell of the aluminum shell of the battery. And (3) inputting punching positioning association into punching equipment, positioning the assembly holes by the punching equipment according to the punching positioning association, and punching the outer shell of the aluminum battery shell by punching parameters set by the punching equipment before punching operation. Positioning is carried out through punching positioning association, so that the obtained assembly holes are more accurate, and the accuracy of integral processing is improved.
Acquiring punching surface data through a depth sensor, and constructing a punching feedback data set;
the depth sensor is an electronic device composed of a laser, an infrared emitter, etc., capable of measuring a distance between an object and the sensor and generating a distance image. The depth, the size, the position and the like of the assembly holes are obtained by data acquisition of the punching surface, the obtained information is compared with the information of the assembly holes obtained in the basic data set, the difference between the theoretical holes obtained in the basic data set and the actual punched holes is analyzed, the error between the theoretical holes and the actual punched holes is analyzed, the analysis result is collected, and a data base is provided for subsequent optimization adjustment.
Generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material;
because errors occur in the punching operation, the situation that the positions of the standard assembly holes and the actual assembly holes are not matched still occurs, the assembly of the subsequent explosion-proof valve is still carried out according to the positions of the standard assembly holes, the assembly deviation of the explosion-proof valve occurs, the final explosion-proof valve cannot achieve the expected explosion-proof effect, and therefore the assembly of the explosion-proof valve needs to be compensated, namely, the assembly compensation is carried out. Because of the error deviations that occur during punching, assembly compensation generation using a punch feedback data set is required. And taking the center point of the punching parameter coordinates of the punching feedback parameters in the punching feedback data set as the center point of the assembly point, converting the compensation data of the punching feedback data into center point movement data, namely assembly center point movement data, and generating assembly compensation according to the assembly center point movement data. And assembling the explosion-proof valve according to the assembly compensation, and welding the battery aluminum shell and the explosion-proof valve. And the assembly compensation is obtained, so that the accuracy of the whole assembly is improved, and the accuracy of the whole production is further improved.
And recording an assembly welding result, and carrying out production control according to the assembly welding result and the punching feedback data set.
Recording assembly and welding results through image acquisition equipment, acquiring assembly image acquisition information and welding image acquisition information, analyzing assembly accuracy of the assembly image acquisition information, judging whether the assembly has deviation, acquiring the deviation, analyzing the deviation, acquiring a deviation result, and adding the result into the assembly welding result; and similarly, welding accuracy analysis is carried out on welding image acquisition information, whether errors occur in welding is judged, the errors are acquired, error degree analysis is carried out on the errors, analysis results are obtained, the analysis results are added to assembly welding results, and production control is carried out according to the assembly welding results and the punching feedback data set. The assembly welding result can further improve the accuracy of assembly and welding and the accuracy of integral production.
Further, the application also comprises:
generating a depth image set, carrying out image identification positioning according to the depth data of the depth image set and the characteristic data of the positioning characteristics, and constructing a standard contour line based on the perforation positioning association and the identification positioning result;
positioning punching features of the depth image set, and determining punching contour lines, wherein the punching contour lines are fitting contour lines;
performing contour comparison on the standard contour line and the punching contour line to generate a contour comparison result;
and constructing the punching feedback data set according to the contour comparison result.
The depth image is analog image data obtained by data acquisition of the punching surface through a depth sensor, and a plurality of image data are arranged to obtain a depth image set. The depth image has depth data of the fitting hole, indicating the depth of the hole. Combining the depth data of the depth image set and the characteristic data of the positioning characteristics, wherein the combined data represent basic size data of the assembly hole, including hole length, width and depth data, determining the position of the hole according to the punching positioning association and the recognition positioning result, determining the assembly hole by combining the position information and the size information of the hole, wherein the surface profile of the assembly hole on the battery aluminum shell is a standard profile line, extracting the characteristics of the depth image set, obtaining punching characteristic positioning, determining the punching profile line according to the punching characteristic positioning, and calling the punching profile line as a fitting profile line. And carrying out similarity analysis on the standard contour line and the punching contour line by using a twin model to generate an analysis result, wherein the analysis result is a contour comparison result which represents errors between a theoretical assembly hole and an actual assembly hole, and adding the contour comparison result to a punching feedback data set, wherein the construction of the punching feedback data set provides a data basis for the generation of subsequent assembly compensation.
Further, the application also comprises:
constructing identification defect features, wherein the identification defect features are feature sets constructed according to search results by taking the fitting contour lines as search starting points and executing contour search within a preset distance;
updating the punching feedback data set according to the feature quantity, feature size and feature distribution of the identified defect features;
generating a punching feedback parameter, wherein the punching feedback parameter is a punching optimization parameter generated by sending the punching feedback data set to a decision processing unit;
and adjusting the preset control parameters through the punching feedback parameters.
And carrying out feature extraction on the fitting contour line and the standard contour line to respectively obtain the image features of the fitting contour line and the image features of the standard contour line, carrying out feature matching on the image features of the fitting contour line and the image features of the standard contour line to obtain feature matching results, and overlapping the fitting contour line with the standard contour line according to the feature matching results. And searching the contour in a certain distance by taking the fitted contour curve as a starting point, searching to obtain a standard contour, constructing the characteristics of the searched result according to the position relation with the standard contour, and identifying the defect characteristics by using the constructed characteristic set. And updating the punching feedback data set according to the identification defect characteristics, and extracting the characteristic quantity, the characteristic size and the characteristic distribution of the identification defect characteristics. And sending the punching feedback data set to a decision processing unit, and adjusting the punching control parameters by the decision processing unit according to feedback, wherein the new parameters obtained by adjustment are the punching optimization parameters. The decision processing unit is a part of punching control of the punching equipment, and processes the feedback parameters through the decision processing unit to generate new control parameters, so that punching operation is more accurate.
Further, the application also comprises:
if the punching feedback parameters are null parameters continuously, carrying out time continuous acquisition identification on punching contour lines in the punching feedback data;
transmitting the punching outline with the continuous acquisition identification result to a trend compensation sub-network, and generating a trend compensation parameter when the trigger value meets a preset threshold value of the trend compensation sub-network;
and obtaining the punching feedback parameters according to the trend compensation parameters.
When the decision processing unit processes the punching feedback data, the problem that the output punching feedback parameters are null parameters due to the limitation of the calculation force of the decision processing unit may occur, and when the punching feedback parameters are continuously null, the punching feedback parameters are input into the decision processing unit again for processing, and if the continuous punching feedback parameters are null, the fact that the calculation force of the current decision processing unit is saturated is indicated, and other modes are needed for outputting the control parameters. Marking the punching outline in the punching feedback data according to a time continuous acquisition mode to obtain a punching outline with continuous time marks, processing the punching outline with continuous time marks through a trend compensation sub-network, analyzing the punching outline according to a time sequence by the trend compensation sub-network, compensating and correcting the punching outline with the current time mark by the trend compensation sub-network when the outline deviates and the deviation value reaches a preset threshold value of the compensation sub-network, and outputting trend compensation parameters. The trend compensation parameters are sent to the punching equipment, the punching equipment converts according to the trend compensation parameters to obtain punching feedback parameters, the trend compensation parameters are obtained, the operation pressure of the decision processing unit is greatly relieved, and the overall operation efficiency is improved.
Further, the application also comprises:
obtaining a positioning result of the battery aluminum shell raw material, wherein the positioning result is positioning coordinates which are obtained through the perforation positioning association positioning;
and taking the positioning result as a basic assembly coordinate, and carrying out coordinate compensation of the basic assembly coordinate through the punching feedback data set to generate the assembly compensation.
And determining the position of the assembly hole of the current battery aluminum shell according to the relation between the assembly hole and the positioning hole in the punching positioning association, and obtaining a positioning result. And taking the positioning result as an assembled positioning coordinate, and assembling the explosion-proof valve after the punching operation is completed. The explosion-proof valve is placed in the assembly hole and welded with the battery aluminum shell, so that the accuracy of the assembly position can influence the explosion-proof effect of the final product. The positioning result is used as basic assembly coordinates, and due to the fact that punching errors exist in the process of punching, synchronous compensation is needed to be carried out on the assembly according to the errors in the process of assembling, so that coordinate compensation is needed to be carried out on the basic assembly coordinates according to a punching feedback data set, a compensation result is generated, namely assembly compensation is obtained, and the accuracy of integral assembly is improved.
Further, the application also comprises:
setting laser etching parameters, wherein the laser etching parameters are control parameters of laser etching equipment which are set by taking the demand data and the basic data set as reference data;
controlling the laser etching equipment to execute laser etching of the explosion-proof valve after assembly and welding are completed;
performing pressure test on the etched explosion-proof valve, and receiving a pressure test result;
and performing verification control optimizing of the laser etching parameters according to the demand data and the pressure test result, and performing equipment control of the laser etching equipment according to the control optimizing result.
Because the battery aluminum shell is applied in different scenes, some scenes need the explosion-proof valve of the battery aluminum shell to be triggered more easily, namely when lower pressure change is generated in the battery, the expanded gas can be discharged to the outside through the explosion-proof valve, and the pressure in the battery is reduced. Therefore, laser etching treatment is needed to be carried out on the explosion-proof valve, and the laser etching refers to etching of micro small grooves on the surface of the part by adopting high-energy pulse laser beams, so that the explosion-proof valve can be broken more easily. Extracting the thickness of the explosion-proof valve in the basic data set, taking the thickness of the explosion-proof valve as the maximum value of laser etching, setting control parameters of laser etching equipment according to the data to be etched within the range of the maximum value of the laser etching, performing laser etching on the explosion-proof valve according to the set parameters to obtain a laser etching result, performing pressure test on the explosion-proof valve by using a pressurizer, and recording the pressure data to obtain a pressure test result. Comparing the pressure test result with the demand data, judging the difference value of the pressure test result and the demand data, setting a difference threshold value, adding the pressure test result to an optimized data set when the difference value of the pressure test result and the demand data is overlarge and exceeds the threshold value, analyzing the pressure test result in the optimized data set, changing corresponding laser etching parameters, obtaining a changed pressure test result, comparing and analyzing the changed pressure test result with the pressure test result before the change, obtaining optimized parameters, and optimizing the control of the laser etching equipment. And the acquisition of the optimizing result is controlled, so that the accuracy of laser etching is improved, and the accuracy of overall production is further improved.
Further, the application also comprises:
performing control matching of big data by the requirement data, the basic data set and the model of the laser etching equipment to construct a laser etching parameter set;
setting uniform distribution constraint, selecting N parameters through the uniform distribution constraint, and taking the N parameters as the laser etching parameters;
and performing result fitting on the pressure test result corresponding to the laser etching parameter, and completing verification control optimizing according to the fitting prediction result and the intersection point interval of the demand data.
And acquiring the demand data, the basic data set and the matching data of the type of the laser etching equipment through the big data, adding the acquired result to the laser control big data set, screening the laser control big data set, and acquiring a screening result, wherein the screening result is called a laser etching parameter set. Setting constraints, wherein the laser etching parameters selected from the laser etching parameter set cannot be extremely extreme, so that extreme data appear according to the pressure test result of the parameters, and the extreme data have no effect on verification control optimization and possibly even interfere with the optimization result, so that the constraints are required to be uniformly distributed, namely, the constraints are uniformly distributed, extreme conditions cannot appear in a plurality of parameters selected by uniformly distributing the constraints, and the pressure test result obtained by the parameters is ensured to be effective. Fitting the obtained pressure test results corresponding to the laser etching parameters to obtain fitting prediction results, obtaining intersecting points in the fitting results, performing inverse operation on the possible results corresponding to the intersecting points to obtain corresponding laser etching parameters, sending the laser etching parameters to laser etching equipment, and controlling the laser etching equipment according to the parameters. And the acquisition of the optimizing result is controlled, so that the accuracy of laser etching is improved, and the accuracy of overall production is further improved.
Example two
Based on the same inventive concept as the explosion-proof valve production process control method of the battery aluminum case in the foregoing embodiment, as shown in fig. 2, the present application provides an explosion-proof valve production process control system of the battery aluminum case, the system comprising:
data set construction module a: the data set construction module a is used for constructing a basic data set of the battery aluminum shell, and the basic data set is used for reading a production line data member by establishing production line connection, wherein the basic data set comprises calibration size data and explosion-proof valve position data;
the association setting module b: the association setting module b is used for setting punching positioning association, wherein the punching positioning association is the distance association between an assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more;
and (c) an association positioning module c: the association positioning module c is used for associating and positioning the uncoiled battery aluminum shell raw material through the punching positioning, and executing the punching control of the assembly holes through preset control parameters when the positioning is completed;
and a data acquisition module d: the data acquisition module d is used for carrying out punching surface data acquisition through the depth sensor and constructing a punching feedback data set;
assembling a compensation module e: the assembly compensation module e is used for generating assembly compensation based on the punching feedback data set and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material;
production control module f: and the production control module f is used for recording the assembly welding result and carrying out production control according to the assembly welding result and the punching feedback data set.
Further, the system further comprises:
and the characteristic positioning module is used for: the feature positioning module is used for performing punching feature positioning on the depth image set and determining a punching contour line, wherein the punching contour line is a fitting contour line;
contour comparison module: the contour comparison module is used for comparing the standard contour line with the punching contour line to generate a contour comparison result;
the feedback data set construction module: the feedback data set construction module is used for constructing the punching feedback data set according to the contour comparison result.
Further, the system further comprises:
an update dataset module: the updating data set module is used for updating the punching feedback data set according to the feature quantity, feature size and feature distribution of the identification defect features;
and a feedback parameter generation module: the feedback parameter generation module is used for generating a punching feedback parameter, wherein the punching feedback parameter is a punching optimization parameter generated by sending the punching feedback data set to a decision processing unit;
parameter adjustment module: the parameter adjustment module is used for adjusting the preset control parameters through the punching feedback parameters.
Further, the system further comprises:
and the time continuous acquisition identification module: the time continuous acquisition identification module is used for carrying out time continuous acquisition identification on the punching outline in the punching feedback data if the punching feedback parameters are null parameters continuously;
trend compensation parameter generation module: the trend compensation parameter generation module is used for sending the punching outline with the continuous acquisition identification result to a trend compensation sub-network, and generating trend compensation parameters when the trigger value meets the preset threshold value of the trend compensation sub-network;
punching feedback parameter module: the punching feedback parameter module is used for obtaining the punching feedback parameter according to the trend compensation parameter.
Further, the system further comprises:
a positioning result acquisition module: the positioning result acquisition module is used for acquiring a positioning result of the battery aluminum shell raw material, wherein the positioning result is a positioning coordinate which is obtained through the perforation positioning association positioning;
and (3) a basic assembly coordinate module: the basic assembly coordinate module is used for taking the positioning result as basic assembly coordinates, and carrying out coordinate compensation of the basic assembly coordinates through the punching feedback data set to generate the assembly compensation.
Further, the system further comprises:
and a laser etching parameter setting module: the laser etching parameter setting module is used for setting laser etching parameters, wherein the laser etching parameters are control parameters of laser etching equipment which are set by taking the demand data and the basic data set as reference data;
and a laser etching module: the laser etching module is used for controlling the laser etching equipment to execute laser etching of the explosion-proof valve after assembly and welding are completed;
and the pressure testing module is used for: the pressure testing module is used for carrying out pressure testing on the etched explosion-proof valve and receiving a pressure testing result;
and (3) verifying, controlling and optimizing a module: the verification control optimizing module is used for carrying out verification control optimizing of the laser etching parameters according to the demand data and the pressure test result, and executing equipment control of the laser etching equipment according to the control optimizing result.
Further, the system further comprises:
and a control matching module: the control matching module is used for carrying out control matching on big data according to the requirement data, the basic data set and the model of the laser etching equipment to construct a laser etching parameter set;
and a laser etching parameter module: the laser etching parameter module is used for setting uniform distribution constraint, and N parameters are selected through the uniform distribution constraint and used as the laser etching parameters;
and a result fitting module: and the result fitting module is used for performing result fitting on the pressure test result corresponding to the laser etching parameter, and finishing verification control optimizing according to the fitting prediction result and the intersection point interval of the demand data.
The foregoing detailed description of the method and system for controlling the production process of the explosion-proof valve of the aluminum battery case will be clear to those skilled in the art, and the device disclosed in the embodiment is relatively simple in description, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The method for controlling the production process of the explosion-proof valve of the battery aluminum shell is characterized by comprising the following steps of:
constructing a basic data set of the battery aluminum shell, wherein the basic data set is used for reading a production line data component by establishing production line connection, and the basic data set comprises calibration size data and explosion-proof valve position data;
setting punching positioning association, wherein the punching positioning association is the distance association between an assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more;
positioning the uncoiled battery aluminum shell raw material through the punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed;
acquiring punching surface data through a depth sensor, and constructing a punching feedback data set;
generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material;
and recording an assembly welding result, and carrying out production control according to the assembly welding result and the punching feedback data set.
2. The method of claim 1, wherein the method further comprises:
generating a depth image set, carrying out image identification positioning according to the depth data of the depth image set and the characteristic data of the positioning characteristics, and constructing a standard contour line based on the perforation positioning association and the identification positioning result;
positioning punching features of the depth image set, and determining punching contour lines, wherein the punching contour lines are fitting contour lines;
performing contour comparison on the standard contour line and the punching contour line to generate a contour comparison result;
and constructing the punching feedback data set according to the contour comparison result.
3. The method of claim 2, wherein the method further comprises:
constructing identification defect features, wherein the identification defect features are feature sets constructed according to search results by taking the fitting contour lines as search starting points and executing contour search within a preset distance;
updating the punching feedback data set according to the feature quantity, feature size and feature distribution of the identified defect features;
generating a punching feedback parameter, wherein the punching feedback parameter is a punching optimization parameter generated by sending the punching feedback data set to a decision processing unit;
and adjusting the preset control parameters through the punching feedback parameters.
4. A method as claimed in claim 3, wherein the method further comprises:
if the punching feedback parameters are null parameters continuously, carrying out time continuous acquisition identification on punching contour lines in the punching feedback data;
transmitting the punching outline with the continuous acquisition identification result to a trend compensation sub-network, and generating a trend compensation parameter when the trigger value meets a preset threshold value of the trend compensation sub-network;
and obtaining the punching feedback parameters according to the trend compensation parameters.
5. The method of claim 1, wherein the method further comprises:
obtaining a positioning result of the battery aluminum shell raw material, wherein the positioning result is positioning coordinates which are obtained through the perforation positioning association positioning;
and taking the positioning result as a basic assembly coordinate, and carrying out coordinate compensation of the basic assembly coordinate through the punching feedback data set to generate the assembly compensation.
6. The method of claim 1, wherein the method further comprises:
setting laser etching parameters, wherein the laser etching parameters are control parameters of laser etching equipment which are set by taking the demand data and the basic data set as reference data;
controlling the laser etching equipment to execute laser etching of the explosion-proof valve after assembly and welding are completed;
performing pressure test on the etched explosion-proof valve, and receiving a pressure test result;
and performing verification control optimizing of the laser etching parameters according to the demand data and the pressure test result, and performing equipment control of the laser etching equipment according to the control optimizing result.
7. The method of claim 6, wherein the method further comprises:
performing control matching of big data by the requirement data, the basic data set and the model of the laser etching equipment to construct a laser etching parameter set;
setting uniform distribution constraint, selecting N parameters through the uniform distribution constraint, and taking the N parameters as the laser etching parameters;
and performing result fitting on the pressure test result corresponding to the laser etching parameter, and completing verification control optimizing according to the fitting prediction result and the intersection point interval of the demand data.
8. An explosion-proof valve production process control system of a battery aluminum shell, which is characterized by comprising:
the data set construction module: constructing a basic data set of the battery aluminum shell, wherein the basic data set is used for reading a production line data component by establishing production line connection, and the basic data set comprises calibration size data and explosion-proof valve position data;
and the association setting module is used for: setting punching positioning association, wherein the punching positioning association is the distance association between an assembly hole and positioning features, the positioning features are features of the positioning assembly hole constructed according to the basic data set, and the positioning features are one or more;
and (3) an association positioning module: positioning the uncoiled battery aluminum shell raw material through the punching positioning association, and executing punching control of the assembly holes through preset control parameters when positioning is completed;
and a data acquisition module: acquiring punching surface data through a depth sensor, and constructing a punching feedback data set;
and (3) assembling a compensation module: generating assembly compensation based on the punching feedback data set, and controlling assembly welding of the explosion-proof valve and the battery aluminum shell raw material;
and a production control module: and recording an assembly welding result, and carrying out production control according to the assembly welding result and the punching feedback data set.
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