CN118194604A - Injection molding parameter optimization method, system and medium for complex curved surface parts - Google Patents
Injection molding parameter optimization method, system and medium for complex curved surface parts Download PDFInfo
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 448
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000005457 optimization Methods 0.000 title claims abstract description 41
- 238000013441 quality evaluation Methods 0.000 claims abstract description 110
- 238000004088 simulation Methods 0.000 claims abstract description 103
- 238000000465 moulding Methods 0.000 claims abstract description 102
- 238000012545 processing Methods 0.000 claims abstract description 88
- 239000012778 molding material Substances 0.000 claims abstract description 81
- 238000011156 evaluation Methods 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 59
- 238000002347 injection Methods 0.000 claims description 47
- 239000007924 injection Substances 0.000 claims description 47
- 230000003746 surface roughness Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000005094 computer simulation Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 33
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- 239000000047 product Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
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- 238000010137 moulding (plastic) Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
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- 238000011056 performance test Methods 0.000 description 2
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Abstract
The embodiment of the application provides an injection molding parameter optimization method, an injection molding parameter optimization system and an injection molding parameter optimization medium for complex curved surface parts. The method comprises the following steps: obtaining part curved surface injection molding information, extracting part curved surface information and injection molding material information suitable for corresponding application scenes, obtaining simulation molding data according to the part curved surface information, processing to obtain simulation molding performance evaluation indexes, comparing the simulation molding performance evaluation indexes with a preset molding performance evaluation threshold value to obtain simulation molding cavity data, extracting injection molding material data according to the injection molding material information, including material processing performance parameter data, and processing to obtain injection molding process data. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not.
Description
Technical Field
The application relates to the technical field of injection molding and big data, in particular to an injection molding parameter optimization method, an injection molding parameter optimization system and an injection molding parameter optimization medium for complex curved surface parts.
Background
With the increasing diversity and complexity of industrial products, the demand for complex curved surface parts is increasing. These parts generally have irregular geometric shapes and complex curved surface structures, and the conventional processing method is difficult to meet the production requirements of high precision and high efficiency. Therefore, the injection molding technology is widely applied to the production of parts with complex curved surfaces as an efficient and accurate molding method. Injection molding technology of parts with complex curved surfaces plays an important role in modern manufacturing industry, and relates to a plurality of fields of material science, mold design, molding process and the like, wherein a compact and inseparable relationship exists among the fields.
In the current part injection molding technology, the mold design difficulty of the complex curved surface part is high, which directly influences the application of injection molding materials and processes, and how to effectively fuse the three parts and improve the injection molding quality is the current emphasis.
In view of the above problems, an effective technical solution is currently needed.
Disclosure of Invention
The embodiment of the application aims to provide an injection molding parameter optimization method, an injection molding parameter optimization system and an injection molding parameter optimization medium for a complex curved surface part, wherein the injection molding parameter optimization method, the injection molding parameter optimization system and the injection molding parameter optimization medium can be used for extracting the curved surface information of the part and the injection molding material information suitable for a corresponding application scene by acquiring the curved surface information of the part, acquiring simulation molding data according to the curved surface information of the part, processing the simulated molding data to acquire a simulation molding performance evaluation index, comparing the simulation molding performance evaluation index with a preset molding performance evaluation threshold value to acquire simulation molding cavity data, extracting the injection molding material data according to the injection molding material information, including the material processing performance parameter data, and processing the injection molding material data to acquire injection molding process data. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not.
The embodiment of the application provides an injection molding parameter optimization method for a complex curved surface part, which comprises the following steps:
acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
Processing according to the curved surface information of the part to obtain simulation molding data;
processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
Comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
Performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value, and judging whether the curve injection molding quality is qualified or not.
In the injection molding parameter optimization method for a complex curved surface part according to the embodiment of the present application, the processing is performed according to the curved surface information of the part to obtain simulated molding data, which specifically includes:
extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
and performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data.
In the injection molding parameter optimization method of the complex curved surface part according to the embodiment of the application, the processing is performed according to the simulation molding data to obtain a simulation molding performance evaluation index, which specifically comprises the following steps:
extracting surface precision data, surface roughness data and surface bending rate data according to the simulation mould data;
And processing the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mold performance model to obtain a simulation plastic mold performance evaluation index.
In the injection molding parameter optimization method for a complex curved surface part according to the embodiment of the present application, the simulation molding performance evaluation index is compared with a preset molding performance evaluation threshold, and simulation molding cavity data is obtained according to the comparison condition, specifically:
comparing the simulated plastic mould performance evaluation index with a preset plastic mould performance evaluation threshold value to obtain a plastic mould performance deviation rate;
judging whether the plastic mould performance deviation rate is larger than a preset performance deviation rate threshold value or not;
if the size is larger than or equal to the size, the simulation molding cavity is unqualified;
And if the data is smaller than the data, obtaining the simulated molding cavity data.
In the injection molding parameter optimization method for the complex curved surface part according to the embodiment of the application, the injection molding process data is obtained by inquiring the material processing performance parameter data through a preset injection molding process database platform, specifically:
Extracting injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data according to the material processing performance parameter data;
and inquiring through a preset injection molding process database platform according to the injection molding temperature data, the injection speed data, the injection pressure data, the pressure maintaining time data, the back pressure data and the material cooling time data to obtain injection molding process data.
In the injection molding parameter optimization method for the complex curved surface part according to the embodiment of the application, the complex curved surface part is subjected to simulated injection molding according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and injection molding quality evaluation processing is performed to obtain a curved surface injection molding quality evaluation index, which specifically comprises the following steps:
And performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and processing the complex curved surface part through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index.
In the injection molding parameter optimization method for the complex curved surface part, the curve injection molding quality evaluation index is compared with a preset curve injection molding quality evaluation threshold value, and whether the curve injection molding quality is qualified is judged, specifically:
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value to obtain a quality evaluation deviation rate;
judging whether the quality evaluation deviation rate is larger than a preset quality evaluation deviation rate threshold value or not;
if the quality of the curved surface injection molding is greater than or equal to the quality of the curved surface injection molding, the quality of the curved surface injection molding is unqualified;
if the quality of the curved surface injection molding is smaller than the quality of the curved surface injection molding, the curved surface injection molding quality is qualified.
In a second aspect, an embodiment of the present application provides an injection molding parameter optimization system for a complex curved part, where the system includes: the device comprises a memory and a processor, wherein the memory comprises a program of an injection molding parameter optimization method of a complex curved surface part, and the program of the injection molding parameter optimization method of the complex curved surface part realizes the following steps when being executed by the processor:
acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
Processing according to the curved surface information of the part to obtain simulation molding data;
processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
Comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
Performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value, and judging whether the curve injection molding quality is qualified or not.
In the injection molding parameter optimization system for a complex curved surface part according to the embodiment of the present application, simulation molding data is obtained according to the curved surface information of the part, specifically:
extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data
In a third aspect, an embodiment of the present application further provides a readable storage medium, where the readable storage medium includes a method program for optimizing injection parameters of a complex curved surface part, where the method program for optimizing injection parameters of a complex curved surface part is executed by a processor, to implement the steps of the method for optimizing injection parameters of a complex curved surface part according to any one of the above embodiments.
It can be seen from the foregoing that, according to the injection molding parameter optimization method, system and medium for complex curved surface parts provided by the embodiment of the application, by obtaining the curved surface injection molding information of the parts, extracting the curved surface information of the parts and the injection molding material information suitable for the corresponding application scene, according to the curved surface information of the parts, obtaining simulated molding data, processing the simulated molding data to obtain a simulated molding performance evaluation index, comparing the simulated molding performance evaluation index with a preset molding performance evaluation threshold value to obtain simulated molding cavity data, extracting the injection molding material data, including the material processing performance parameter data, according to the injection molding material information, and processing the injection molding material data to obtain injection molding process data. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not. According to the application, the simulation plastic mold cavity is obtained through performance evaluation and high standard performance requirements of the simulation plastic mold, the matched injection molding process is obtained through injection molding materials, and finally the simulation plastic molding is carried out through the simulation plastic mold cavity and the injection molding materials combined with the injection molding process. By simulating injection molding, the molding effect of the parts, including dimensional accuracy, surface quality, internal defects and the like, can be predicted before actual production. This helps to find potential problems during the design phase and to optimize accordingly, thereby improving the performance and quality of the product.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flowchart of an injection molding parameter optimization method for a complex curved surface part provided by an embodiment of the application;
FIG. 2 is a flow chart of obtaining simulation molding data of an injection molding parameter optimization method of a complex curved surface part according to an embodiment of the present application;
FIG. 3 is a flowchart of a method for optimizing injection molding parameters of a complex curved surface part to obtain an evaluation index of simulated molding performance according to an embodiment of the present application;
FIG. 4 is a flowchart of obtaining simulated molding cavity data in an injection parameter optimization method for a complex curved surface part according to an embodiment of the present application;
fig. 5 is a flowchart of an injection molding process data obtaining method for optimizing injection molding parameters of a complex curved surface part according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application 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 application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance. It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards of the related country and region.
Referring to fig. 1, fig. 1 is a flowchart of an injection parameter optimization method for a complex curved part according to some embodiments of the application. The injection molding parameter optimization method of the complex curved surface part is used in terminal equipment, such as a computer, a mobile phone terminal and the like. The injection molding parameter optimization method of the complex curved surface part comprises the following steps:
S101, acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
S102, processing according to the curved surface information of the part to obtain simulation molding data;
s103, processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
S104, comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
S105, extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
s106, inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
S107, performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
S108, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold value, and judging whether the curved surface injection molding quality is qualified or not.
The method comprises the steps of obtaining curved surface injection molding information of parts, extracting curved surface information of the parts and injection molding material information suitable for corresponding application scenes, obtaining simulation molding data according to the curved surface information of the parts, processing to obtain simulation molding performance evaluation indexes, comparing the simulation molding performance evaluation indexes with preset molding performance evaluation thresholds to obtain simulation molding cavity data, extracting injection molding material data according to the injection molding material information, including material processing performance parameter data, and processing to obtain injection molding process data. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not. According to the application, the simulation plastic mold cavity is obtained through performance evaluation and high standard performance requirements of the simulation plastic mold, the matched injection molding process is obtained through injection molding materials, and finally the simulation plastic molding is carried out through the simulation plastic mold cavity and the injection molding materials combined with the injection molding process. By simulating injection molding, the molding effect of the parts, including dimensional accuracy, surface quality, internal defects and the like, can be predicted before actual production. This helps to find potential problems during the design phase and to optimize accordingly, thereby improving the performance and quality of the product.
Referring to fig. 2, fig. 2 is a flowchart of a method for optimizing injection parameters of a complex curved part according to some embodiments of the present application to obtain simulated molding data. According to the embodiment of the application, the simulation molding data is obtained by processing the curved surface information of the part, specifically:
s201, extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
S202, performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data.
In order to improve injection molding quality and effect, it is important to build a high-quality mold, the application extracts surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the parts, and then carries out simulation modeling to obtain simulation molding data. The curved surface type data comprise a plane, a cylindrical surface, a conical surface, a spherical surface, a free curved surface and the like; the curved surface size data comprises length, width, height, area, curvature, angle and the like; the surface texture feature data comprise surface structure, directionality, periodicity, roughness and the like; the curved surface boundary data comprises boundary shapes, positions, curvatures, sizes, connection relations and the like; the surface normal direction data includes normal vector direction, consistency, accuracy and application of data, and the like. Simulation modeling includes using CAD software, meshing tools, simulation software: such as Moldex3D ADVANCED, autodesk Moldflow, etc., the establishment of twins and molds can also be performed by digital twinning techniques.
Referring to fig. 3, fig. 3 is a flowchart of a method for optimizing injection parameters of a complex curved part to obtain an evaluation index of simulated molding performance according to some embodiments of the present application. According to the embodiment of the application, the simulation plastic mold performance evaluation index is obtained by processing the simulation plastic mold data, specifically:
S301, extracting curved surface precision data, curved surface roughness data and curved surface bending rate data according to the simulation mould data;
S302, processing according to the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mould performance model to obtain a simulation plastic mould performance evaluation index.
In order to improve manufacturing accuracy and service life of the injection mold, extracting curved surface precision data, curved surface roughness data and curved surface bending rate data according to simulation mold data, wherein the curved surface precision data comprise shape, size and position of a curved surface, overall contour errors, local concave-convex errors and the like; the surface roughness data mainly comprise microscopic irregularities of the surface; the curve curvature rate data comprises a main curvature, a Gaussian curvature, an average curvature, a curve change rate and the like; processing according to the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mold performance model to obtain a simulation plastic mold performance evaluation index;
the calculation formula of the simulation plastic mould performance model is as follows:
；
Wherein, Evaluating an index for simulating mold performance,/>Is curved surface precision data,/>Is surface roughness data,/>Is curved surface bending rate data,/>Is a preset characteristic coefficient (the characteristic coefficient is obtained through a preset molding database query).
Referring to fig. 4, fig. 4 is a flowchart of a method for optimizing injection parameters of a complex curved part according to some embodiments of the present application to obtain simulated molding cavity data. According to the embodiment of the application, the simulated plastic mold cavity data is obtained by comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value according to the comparison condition, specifically:
s401, comparing the simulated plastic mould performance evaluation index with a preset plastic mould performance evaluation threshold value to obtain a plastic mould performance deviation rate;
S402, judging whether the plastic mould performance deviation rate is larger than a preset performance deviation rate threshold value or not;
s403, if the simulated molding cavity is larger than or equal to the simulated molding cavity, the simulated molding cavity is unqualified;
s404, if the data is smaller than the simulation molding cavity data, obtaining the simulation molding cavity data.
And in order to further improve the manufacturing accuracy and the service life of the injection mold, comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold to obtain a plastic mold performance deviation rate, judging whether the plastic mold performance deviation rate is larger than the preset performance deviation rate threshold, if so, failing the simulated plastic mold cavity, and if so, obtaining the simulated plastic mold cavity data. The durability, the precision and the material stability of the mold have important influences on the performance and the service life of the injection mold, the performance test can be performed on the mold by simulating the parameter conditions such as the temperature, the pressure and the like of an application scene, and the simulated mold cavity data are obtained when the simulated mold performance evaluation index meets the preset threshold condition.
Referring to fig. 5, fig. 5 is a flowchart of an injection molding process data obtaining method for optimizing injection molding parameters of a complex curved surface part according to some embodiments of the present application. According to the embodiment of the application, the injection molding process data is obtained by inquiring the material processing performance parameter data through a preset injection molding process database platform, specifically:
S501, extracting injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data according to the material processing performance parameter data;
S502, inquiring through a preset injection molding process database platform according to the injection molding temperature data, the injection speed data, the injection pressure data, the pressure maintaining time data, the back pressure data and the material cooling time data to obtain injection molding process data.
Wherein, the injection molding process can be judged according to the characteristics of injection molding materials, and the characteristics directly affect the filling, cooling, solidifying and other stages in the injection molding process, and the performance and quality of the final product, for example, for mass production, the high-speed injection molding process can be selected to improve the production efficiency; for small volume production or custom products, a more flexible injection molding process may be desired. Specifically, injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data are extracted according to material processing performance parameter data, and query is conducted through a preset injection molding process database platform to obtain injection molding process data.
According to the embodiment of the invention, the complex curved surface parts are subjected to simulated injection molding according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and injection molding quality evaluation processing is performed to obtain a curved surface injection molding quality evaluation index, which specifically comprises the following steps:
And performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and processing the complex curved surface part through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index.
In order to improve the final injection molding quality and production efficiency, the complex curved surface parts are subjected to simulated injection molding according to simulated molding cavity data, injection molding material data and injection molding process data, and are processed through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index, and the overall injection molding quality is evaluated from three aspects of simulated molding cavity data, injection molding material data and injection molding process data, so that the final injection molding effect can be reflected;
The calculation formula of the curved surface injection molding quality evaluation model is as follows:
ln/>；
Wherein, Evaluating index for curved surface injection molding quality,/>For simulating mold cavity data,/>For injection molding material data,/>For injection molding process data,/>The characteristic coefficient is preset (the characteristic coefficient is obtained by inquiring a preset curved surface injection molding quality database platform).
According to the embodiment of the invention, the curve injection molding quality evaluation index is compared with a preset curve injection molding quality evaluation threshold value to judge whether the curve injection molding quality is qualified, specifically:
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value to obtain a quality evaluation deviation rate;
judging whether the quality evaluation deviation rate is larger than a preset quality evaluation deviation rate threshold value or not;
if the quality of the curved surface injection molding is greater than or equal to the quality of the curved surface injection molding, the quality of the curved surface injection molding is unqualified;
if the quality of the curved surface injection molding is smaller than the quality of the curved surface injection molding, the curved surface injection molding quality is qualified.
After quality evaluation is performed on the curved surface injection quality, comparing the curved surface injection quality evaluation index with a preset curved surface injection quality evaluation threshold value to obtain a quality evaluation deviation rate, judging whether the quality evaluation deviation rate is larger than the preset quality evaluation deviation rate threshold value, if so, disqualifying the curved surface injection quality, and if so, qualifying the curved surface injection quality.
According to an embodiment of the present invention, further comprising:
Acquiring curved surface injection molding efficiency data;
comparing the curved surface injection molding efficiency data with a preset injection molding efficiency threshold value to obtain an efficiency deviation rate;
Judging whether the efficiency deviation rate is larger than a preset efficiency deviation rate threshold value or not;
If the ratio is greater than or equal to the preset value, the injection molding efficiency is low, and an injection molding process needs to be improved;
If the injection molding efficiency is smaller than the production requirement is met.
The curve injection molding efficiency data are compared with a preset injection molding efficiency threshold value to obtain an efficiency deviation rate, whether the efficiency deviation rate is larger than the preset efficiency deviation rate threshold value is judged, if so, the injection molding efficiency is low, an injection molding process needs to be improved, and if so, the injection molding efficiency meets the production requirement. Through controlling injection molding efficiency, the injection molding process can be improved according to actual production requirements, so that the overall effects of improving production efficiency, reducing production cost and improving enterprise image are achieved.
According to an embodiment of the present invention, further comprising:
Acquiring operation record data of injection molding equipment;
extracting operation fault frequency data according to the injection molding equipment operation record data;
comparing the operation fault frequency data with historical operation fault frequency data to obtain a fault frequency deviation rate;
judging whether the fault frequency deviation rate is larger than a preset frequency deviation rate threshold value or not;
If the quality of the injection molding equipment is greater than or equal to the quality of the injection molding equipment, the quality of the injection molding equipment is unqualified;
If the temperature is less than the preset temperature, the injection molding equipment meets the production requirement.
The method comprises the steps of obtaining operation fault frequency data according to operation record data of injection molding equipment, comparing the operation fault frequency data with historical operation fault frequency data to obtain a fault frequency deviation rate, judging whether the fault frequency deviation rate is larger than a preset frequency deviation rate threshold value, if so, failing the quality of the injection molding equipment, and if so, meeting production requirements of the injection molding equipment.
The invention also discloses an injection molding parameter optimization system of the complex curved surface part, which comprises a memory and a processor, wherein the memory comprises an injection molding parameter optimization method program of the complex curved surface part, and the injection molding parameter optimization method program of the complex curved surface part is executed by the processor to realize the following steps:
acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
Processing according to the curved surface information of the part to obtain simulation molding data;
processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
Comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
Performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value, and judging whether the curve injection molding quality is qualified or not.
The method comprises the steps of obtaining curved surface injection molding information of parts, extracting curved surface information of the parts and injection molding material information suitable for corresponding application scenes, obtaining simulation molding data according to the curved surface information of the parts, processing to obtain simulation molding performance evaluation indexes, comparing the simulation molding performance evaluation indexes with preset molding performance evaluation thresholds to obtain simulation molding cavity data, extracting injection molding material data according to the injection molding material information, including material processing performance parameter data, and processing to obtain injection molding process data. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not. According to the application, the simulation plastic mold cavity is obtained through performance evaluation and high standard performance requirements of the simulation plastic mold, the matched injection molding process is obtained through injection molding materials, and finally the simulation plastic molding is carried out through the simulation plastic mold cavity and the injection molding materials combined with the injection molding process. By simulating injection molding, the molding effect of the parts, including dimensional accuracy, surface quality, internal defects and the like, can be predicted before actual production. This helps to find potential problems during the design phase and to optimize accordingly, thereby improving the performance and quality of the product.
According to the embodiment of the invention, the simulation molding data is obtained by processing the curved surface information of the part, specifically:
extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
and performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data.
In order to improve injection molding quality and effect, it is important to build a high-quality mold, the application extracts surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the parts, and then carries out simulation modeling to obtain simulation molding data. The curved surface type data comprise a plane, a cylindrical surface, a conical surface, a spherical surface, a free curved surface and the like; the curved surface size data comprises length, width, height, area, curvature, angle and the like; the surface texture feature data comprise surface structure, directionality, periodicity, roughness and the like; the curved surface boundary data comprises boundary shapes, positions, curvatures, sizes, connection relations and the like; the surface normal direction data includes normal vector direction, consistency, accuracy and application of data, and the like. Simulation modeling includes using CAD software, meshing tools, simulation software: such as Moldex3D ADVANCED, autodesk Moldflow, etc., the establishment of twins and molds can also be performed by digital twinning techniques.
According to the embodiment of the invention, the simulation plastic mold performance evaluation index is obtained by processing the simulation plastic mold data, specifically:
extracting surface precision data, surface roughness data and surface bending rate data according to the simulation mould data;
And processing the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mold performance model to obtain a simulation plastic mold performance evaluation index.
In order to improve manufacturing accuracy and service life of the injection mold, extracting curved surface precision data, curved surface roughness data and curved surface bending rate data according to simulation mold data, wherein the curved surface precision data comprise shape, size and position of a curved surface, overall contour errors, local concave-convex errors and the like; the surface roughness data mainly comprise microscopic irregularities of the surface; the curve curvature rate data comprises a main curvature, a Gaussian curvature, an average curvature, a curve change rate and the like; processing according to the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mold performance model to obtain a simulation plastic mold performance evaluation index;
the calculation formula of the simulation plastic mould performance model is as follows:
；
Wherein, Evaluating an index for simulating mold performance,/>Is curved surface precision data,/>Is surface roughness data,/>Is curved surface bending rate data,/>Is a preset characteristic coefficient (the characteristic coefficient is obtained through a preset molding database query).
According to the embodiment of the invention, the simulated plastic mold cavity data is obtained by comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value according to the comparison condition, specifically:
comparing the simulated plastic mould performance evaluation index with a preset plastic mould performance evaluation threshold value to obtain a plastic mould performance deviation rate;
judging whether the plastic mould performance deviation rate is larger than a preset performance deviation rate threshold value or not;
if the size is larger than or equal to the size, the simulation molding cavity is unqualified;
And if the data is smaller than the data, obtaining the simulated molding cavity data.
And in order to further improve the manufacturing accuracy and the service life of the injection mold, comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold to obtain a plastic mold performance deviation rate, judging whether the plastic mold performance deviation rate is larger than the preset performance deviation rate threshold, if so, failing the simulated plastic mold cavity, and if so, obtaining the simulated plastic mold cavity data. The durability, the precision and the material stability of the mold have important influences on the performance and the service life of the injection mold, the performance test can be performed on the mold by simulating the parameter conditions such as the temperature, the pressure and the like of an application scene, and the simulated mold cavity data are obtained when the simulated mold performance evaluation index meets the preset threshold condition.
According to the embodiment of the invention, the injection molding process data is obtained by inquiring the material processing performance parameter data through a preset injection molding process database platform, specifically:
Extracting injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data according to the material processing performance parameter data;
and inquiring through a preset injection molding process database platform according to the injection molding temperature data, the injection speed data, the injection pressure data, the pressure maintaining time data, the back pressure data and the material cooling time data to obtain injection molding process data.
Wherein, the injection molding process can be judged according to the characteristics of injection molding materials, and the characteristics directly affect the filling, cooling, solidifying and other stages in the injection molding process, and the performance and quality of the final product, for example, for mass production, the high-speed injection molding process can be selected to improve the production efficiency; for small volume production or custom products, a more flexible injection molding process may be desired. Specifically, injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data are extracted according to material processing performance parameter data, and query is conducted through a preset injection molding process database platform to obtain injection molding process data.
According to the embodiment of the invention, the complex curved surface parts are subjected to simulated injection molding according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and injection molding quality evaluation processing is performed to obtain a curved surface injection molding quality evaluation index, which specifically comprises the following steps:
And performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and processing the complex curved surface part through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index.
In order to improve the final injection molding quality and production efficiency, the complex curved surface parts are subjected to simulated injection molding according to simulated molding cavity data, injection molding material data and injection molding process data, and are processed through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index, and the overall injection molding quality is evaluated from three aspects of simulated molding cavity data, injection molding material data and injection molding process data, so that the final injection molding effect can be reflected;
The calculation formula of the curved surface injection molding quality evaluation model is as follows:
ln/>；
Wherein, Evaluating index for curved surface injection molding quality,/>For simulating mold cavity data,/>For injection molding material data,/>For injection molding process data,/>The characteristic coefficient is preset (the characteristic coefficient is obtained by inquiring a preset curved surface injection molding quality database platform).
According to the embodiment of the invention, the curve injection molding quality evaluation index is compared with a preset curve injection molding quality evaluation threshold value to judge whether the curve injection molding quality is qualified, specifically:
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value to obtain a quality evaluation deviation rate;
judging whether the quality evaluation deviation rate is larger than a preset quality evaluation deviation rate threshold value or not;
if the quality of the curved surface injection molding is greater than or equal to the quality of the curved surface injection molding, the quality of the curved surface injection molding is unqualified;
if the quality of the curved surface injection molding is smaller than the quality of the curved surface injection molding, the curved surface injection molding quality is qualified.
After quality evaluation is performed on the curved surface injection quality, comparing the curved surface injection quality evaluation index with a preset curved surface injection quality evaluation threshold value to obtain a quality evaluation deviation rate, judging whether the quality evaluation deviation rate is larger than the preset quality evaluation deviation rate threshold value, if so, disqualifying the curved surface injection quality, and if so, qualifying the curved surface injection quality.
According to an embodiment of the present invention, further comprising:
Acquiring curved surface injection molding efficiency data;
comparing the curved surface injection molding efficiency data with a preset injection molding efficiency threshold value to obtain an efficiency deviation rate;
Judging whether the efficiency deviation rate is larger than a preset efficiency deviation rate threshold value or not;
If the ratio is greater than or equal to the preset value, the injection molding efficiency is low, and an injection molding process needs to be improved;
If the injection molding efficiency is smaller than the production requirement is met.
The curve injection molding efficiency data are compared with a preset injection molding efficiency threshold value to obtain an efficiency deviation rate, whether the efficiency deviation rate is larger than the preset efficiency deviation rate threshold value is judged, if so, the injection molding efficiency is low, an injection molding process needs to be improved, and if so, the injection molding efficiency meets the production requirement. Through controlling injection molding efficiency, the injection molding process can be improved according to actual production requirements, so that the overall effects of improving production efficiency, reducing production cost and improving enterprise image are achieved.
According to an embodiment of the present invention, further comprising:
Acquiring operation record data of injection molding equipment;
extracting operation fault frequency data according to the injection molding equipment operation record data;
comparing the operation fault frequency data with historical operation fault frequency data to obtain a fault frequency deviation rate;
judging whether the fault frequency deviation rate is larger than a preset frequency deviation rate threshold value or not;
If the quality of the injection molding equipment is greater than or equal to the quality of the injection molding equipment, the quality of the injection molding equipment is unqualified;
If the temperature is less than the preset temperature, the injection molding equipment meets the production requirement.
The method comprises the steps of obtaining operation fault frequency data according to operation record data of injection molding equipment, comparing the operation fault frequency data with historical operation fault frequency data to obtain a fault frequency deviation rate, judging whether the fault frequency deviation rate is larger than a preset frequency deviation rate threshold value, if so, failing the quality of the injection molding equipment, and if so, meeting production requirements of the injection molding equipment.
The third aspect of the present invention also provides a readable storage medium, where the readable storage medium includes a program for optimizing injection parameters of a complex curved surface part, where the program for optimizing injection parameters of a complex curved surface part, when executed by a processor, implements the steps of the method for optimizing injection parameters of a complex curved surface part according to any one of the above-mentioned steps.
According to the injection molding parameter optimization method, system and medium for the complex curved surface parts, the curved surface injection molding information of the parts is obtained, the curved surface information of the parts and the injection molding material information suitable for corresponding application scenes are extracted, simulation molding data is obtained according to the curved surface information of the parts, simulation molding performance evaluation indexes are obtained through processing, then the simulation molding performance evaluation indexes are compared with preset molding performance evaluation thresholds, simulation molding cavity data are obtained, injection molding material data including material processing performance parameter data are extracted according to the injection molding material information, and injection molding process data are obtained through processing. And performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data, performing injection molding quality evaluation treatment to obtain a curved surface injection molding quality evaluation index, comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold, and judging whether the curved surface injection molding quality is qualified or not. According to the application, the simulation plastic mold cavity is obtained through performance evaluation and high standard performance requirements of the simulation plastic mold, the matched injection molding process is obtained through injection molding materials, and finally the simulation plastic molding is carried out through the simulation plastic mold cavity and the injection molding materials combined with the injection molding process. By simulating injection molding, the molding effect of the parts, including dimensional accuracy, surface quality, internal defects and the like, can be predicted before actual production. This helps to find potential problems during the design phase and to optimize accordingly, thereby improving the performance and quality of the product.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a read-only memory, a random access memory, a magnetic or optical disk, or other various media capable of storing program code.
Or the above-described integrated units of the invention may be stored in a readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
Claims (10)
1. The injection molding parameter optimization method for the complex curved surface part is characterized by comprising the following steps of:
acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
Processing according to the curved surface information of the part to obtain simulation molding data;
processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
Comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
Performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value, and judging whether the curve injection molding quality is qualified or not.
2. The method for optimizing injection molding parameters of a complex curved surface part according to claim 1, wherein the processing is performed according to the curved surface information of the part to obtain simulation molding data, specifically:
extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
and performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data.
3. The method for optimizing injection molding parameters of complex curved surface parts according to claim 2, wherein the processing is performed according to the simulation mold data to obtain a simulation mold performance evaluation index, specifically:
extracting surface precision data, surface roughness data and surface bending rate data according to the simulation mould data;
And processing the curve surface precision data, the curve surface roughness data and the curve surface bending rate data through a preset simulation plastic mold performance model to obtain a simulation plastic mold performance evaluation index.
4. The method for optimizing injection molding parameters of a complex curved surface part according to claim 3, wherein the step of comparing the simulated molding performance evaluation index with a preset molding performance evaluation threshold value, and obtaining simulated molding cavity data according to the comparison condition is specifically as follows:
comparing the simulated plastic mould performance evaluation index with a preset plastic mould performance evaluation threshold value to obtain a plastic mould performance deviation rate;
judging whether the plastic mould performance deviation rate is larger than a preset performance deviation rate threshold value or not;
if the size is larger than or equal to the size, the simulation molding cavity is unqualified;
And if the data is smaller than the data, obtaining the simulated molding cavity data.
5. The method for optimizing injection molding parameters of complex curved surface parts according to claim 4, wherein the query is performed through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data, specifically:
Extracting injection molding temperature data, injection speed data, injection pressure data, pressure maintaining time data, back pressure data and material cooling time data according to the material processing performance parameter data;
and inquiring through a preset injection molding process database platform according to the injection molding temperature data, the injection speed data, the injection pressure data, the pressure maintaining time data, the back pressure data and the material cooling time data to obtain injection molding process data.
6. The method for optimizing injection molding parameters of a complex curved surface part according to claim 5, wherein the steps of performing simulated injection molding on the complex curved surface part according to the simulated mold cavity data, the injection molding material data and the injection molding process data and performing injection molding quality evaluation processing are performed to obtain a curved surface injection molding quality evaluation index specifically include:
And performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and processing the complex curved surface part through a preset curved surface injection molding quality evaluation model to obtain a curved surface injection molding quality evaluation index.
7. The method for optimizing injection molding parameters of a complex curved surface part according to claim 6, wherein comparing the curved surface injection molding quality evaluation index with a preset curved surface injection molding quality evaluation threshold value, and judging whether the curved surface injection molding quality is qualified or not comprises the following specific steps:
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value to obtain a quality evaluation deviation rate;
judging whether the quality evaluation deviation rate is larger than a preset quality evaluation deviation rate threshold value or not;
if the quality of the curved surface injection molding is greater than or equal to the quality of the curved surface injection molding, the quality of the curved surface injection molding is unqualified;
if the quality of the curved surface injection molding is smaller than the quality of the curved surface injection molding, the curved surface injection molding quality is qualified.
8. The injection molding parameter optimization system for the complex curved surface parts is characterized by comprising a memory and a processor, wherein the memory comprises an injection molding parameter optimization method program for the complex curved surface parts, and the injection molding parameter optimization method program for the complex curved surface parts realizes the following steps when being executed by the processor:
acquiring part curved surface injection molding information, and extracting part curved surface information and injection molding material information applicable to corresponding application scenes;
Processing according to the curved surface information of the part to obtain simulation molding data;
processing according to the simulation mould data to obtain a simulation mould performance evaluation index;
Comparing the simulated plastic mold performance evaluation index with a preset plastic mold performance evaluation threshold value, and obtaining simulated plastic mold cavity data according to comparison conditions;
extracting injection molding material data according to the injection molding material information suitable for the corresponding application scene, wherein the injection molding material data comprises material type data, material physical characteristic data, material chemical property data and material processing property parameter data;
inquiring through a preset injection molding process database platform according to the material processing performance parameter data to obtain injection molding process data;
Performing simulated injection molding on the complex curved surface part according to the simulated molding cavity data, the injection molding material data and the injection molding process data, and performing injection molding quality evaluation processing to obtain a curved surface injection molding quality evaluation index;
comparing the curve injection molding quality evaluation index with a preset curve injection molding quality evaluation threshold value, and judging whether the curve injection molding quality is qualified or not.
9. The injection molding parameter optimization system of a complex curved surface part according to claim 8, wherein the obtaining simulation molding data according to the curved surface information of the part specifically comprises:
extracting surface type data, surface size data, surface texture feature data, surface boundary data and surface normal direction data according to the surface information of the part;
and performing simulation modeling processing according to the curved surface type data, the curved surface size data, the curved surface texture feature data, the curved surface boundary data and the curved surface normal direction data to obtain simulation molding data.
10. A computer readable storage medium, wherein the computer readable storage medium includes a method, a system and a medium program for optimizing injection molding parameters of a complex curved surface part, and the method, the system and the medium program for optimizing injection molding parameters of a complex curved surface part implement the steps of the method for optimizing injection molding parameters of a complex curved surface part according to any one of claims 1 to 7 when executed by a processor.
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