24 results about "Virtual machining" patented technology

The invention discloses a laser processing parameter autonomous generation system and method based on digital twinning, and relates to the field of digital twinning, and the method comprises the steps: collecting and preprocessing processing data in real time through a multi-source sensor; processing and analyzing the task instruction by using a natural language, extracting a constraint condition and forming a structured demand; a processing parameter candidate set is generated through a Transform model in combination with historical data transfer learning, and virtual processing is performed by means of multi-physics field simulation; an improved non-dominated sorting genetic algorithm is adopted to dynamically optimize the parameter weight, and a global optimal parameter combination is obtained through digital twin iteration verification; and after full-process virtual processing verification and task demand comparison, parameters are adaptively corrected, and model parameters are continuously optimized according to physical and simulation data deviation after actual processing. The method has the advantages that the digital twin is used as a core, multi-source real-time data, the AI algorithm and multi-physical field simulation are fused, and autonomous generation, multi-target optimization and virtual-real closed-loop iteration of laser processing parameters are achieved.

The invention relates to the technical field of program control, and discloses a femtosecond laser process parameter self-optimization method and system, and the method comprises the steps: carrying out the image reconstruction of real-time three-dimensional shape data, and obtaining a real-time ablation contour image; performing morphological feature deconstruction on the real-time ablation contour image to obtain a contour feature parameter set; performing deviation quantitative analysis on parameters in the contour feature parameter set and a standard feature threshold range to obtain a deviation feature vector; performing compensation strategy addressing on a preset process parameter adjustment rule base to obtain a preliminary compensation parameter combination; virtual machining track planning is carried out on the machined area, ablation morphology deduction is carried out on the planned track, and a fitting verification result is obtained; when a fitting verification result meets a convergence condition, performing parameter solidification packaging on the initial compensation parameter combination to obtain a final compensation parameter; according to the method, the self-optimization efficiency of the femtosecond laser process parameters can be improved.

The invention discloses a digital twinning real-time simulation optimization method for an aviation part five-axis equipment processing track, and relates to the technical field of processing track optimization, and the method comprises the following steps: building a virtual processing model in a virtual space based on digital twinning; acquiring an initial processing track based on the virtual processing model; acquiring a first right side area based on the initial processing track; obtaining a first area threshold value and a second area threshold value based on the first right side area; obtaining a first right mean value based on the first area threshold and the second area threshold; acquiring a left side area based on the initial processing track; obtaining a first overall area, and obtaining a second adjustment straight line based on the first overall area, the left side area and the first right side mean value; an optimized path is obtained based on the second adjusting straight line, and the aviation part is machined based on the optimized path; the method is used for solving the problems that in an existing machining track optimization technology, due to the fact that irregular machining area boundaries are complementary, many repeated machining areas exist, and the total path is long.

The invention relates to the technical field of horizontal mirror image milling equipment, in particular to a horizontal mirror image milling track control method and device and a storage medium, and the horizontal mirror image milling track control method comprises the steps that a digital prototype of the horizontal mirror image milling equipment is established for virtual machining simulation; running a virtual machining algorithm based on the digital prototype, performing inverse solution operation on a tool nose point track, converting the tool nose point track into a real axis machining coordinate, and generating an executable numerical control (NC) program; and outputting the numerical control NC program to an actual numerical control system for execution, and feeding back the executed position information to a virtual numerical control system to realize the synchronous movement of the digital prototype. According to the method, program simulation and machine tool machining synchronous movement can be carried out, the post-processing time and the program testing time are greatly shortened, and the effectiveness and correctness of the program are guaranteed.

The application provides a robot process debugging system and method based on three-dimensional visualization, and relates to the technical field of robot processing debugging, and comprises the following steps: a data processing module is used for acquiring saved workstation data and robot data in a robot workstation, and extracting robot trajectory point data and process parameters from the robot data; a three-dimensional display module is used for establishing a virtual workstation model containing a virtual robot model according to the workstation data and the robot data, and establishing a virtual processing trajectory of the virtual robot model according to the trajectory point data and the process parameters; and a debugging module is used for debugging process parameters to obtain process debugging parameters according to externally input debugging instructions, and the three-dimensional display module synchronously displays the adjustment of the virtual processing trajectory according to the process debugging parameters. The beneficial effect is to provide a three-dimensional visual interactive interface, reduce the operation complexity, improve the process debugging efficiency, improve the interactive experience, and make the process debugging more convenient.

A game interaction control method and apparatus, and an electronic device. The method comprises: determining an initial object to be processed (S102); on the basis of the initial object, determining a plurality of processing attributes corresponding to the initial object, wherein the processing attributes are used for indicating attributes of a target object that can be generated by means of processing the initial object (S104); on the basis of the plurality of processing attributes, determining a virtual processing task, wherein the virtual processing task is used for determining a target processing attribute from among the plurality of processing attributes (S106); and in response to the completion of the virtual processing task, on the basis of the target processing attribute and the initial object, performing processing to generate the target object corresponding to the target processing attribute (S108). In the method, a player can participate immersively in an object generation process and affect a generation result, thereby improving the interactivity of the object generation process and meeting personalized object generation requirements.

This application discloses a workpiece machining method, apparatus, equipment, and medium based on a large language model and digital twin, relating to the field of machine tool machining technology. The method includes: acquiring machining task information and encoding it using a machining task processing model to obtain target semantic encoding; retrieving graph nodes from a knowledge graph based on the target semantic encoding and obtaining an initial process scheme set based on the graph nodes; predicting the tool wear trend of the machine tool based on the tool wear curve and updating the process scheme set based on the obtained tool wear trend; performing virtual machining simulation on the updated process scheme set in a digital twin simulation model; and if the virtual machining simulation passes, machining the workpiece to be machined using the updated process scheme set. By predicting the tool wear trend based on the tool wear curve and updating the process scheme based on the tool wear trend, the problem of increased defect rate caused by severe tool wear is avoided.

The application discloses a laser processing parameter autonomous generation system and method based on digital twinning, relates to the field of digital twinning, and comprises the following steps: collecting and preprocessing processing data in real time through a multi-source sensor; using natural language processing to analyze task instructions, extract constraint conditions and form structured requirements; generating a processing parameter candidate set through a Transformer model combined with historical data migration learning, and performing virtual processing with the aid of multi-physics field simulation; dynamically optimizing parameter weights by using an improved non-dominated sorting genetic algorithm, and obtaining a globally optimal parameter combination through iterative verification of a digital twin; after comparison between the virtual processing verification and the task requirements, adaptively correcting the parameters, and continuously optimizing the model parameters according to the deviation between the physical and simulation data after actual processing. The application has the advantages that the digital twin is taken as the core, multi-source real-time data, AI algorithms and multi-physics field simulation are fused, and the autonomous generation, multi-objective optimization and virtual-real closed-loop iteration of laser processing parameters are realized.

This invention discloses a data analysis-driven intelligent prediction method and system for machining time, belonging to the field of industrial data processing technology. It includes: loading the 3D model data of the target part; performing multimodal feature recognition based on geometric topology information and surface visual information to obtain machining feature information; performing process decision-making and theoretical time calculation based on the machining feature information to obtain theoretical time and theoretical toolpath data; loading a digital twin of the target equipment and synchronizing equipment status data with the physical machining equipment in real time; inputting the theoretical toolpath data into the digital twin, performing virtual machining simulation to obtain the simulation time, and calculating the deviation between the theoretical time and the simulation time; and dynamically adjusting the time calibration coefficient through a reinforcement learning model based on the equipment status data, machining feature information, and deviation value to obtain the final predicted time. This invention effectively improves the accuracy and reliability of machining time prediction.

The invention provides a method for correcting laser etching data of a three-dimensional curved surface, which comprises the following steps of: correcting design molded surface data of a workpiece shell through actual molded surface data of the workpiece shell, and generating laser etching data on the basis of the corrected design molded surface data, and the virtual machining design molded surface of the workpiece shell is closer to the actual machining molded surface, so that the laser etching precision is improved, and the method has important significance on the development of a three-dimensional curved surface laser etching technology.

This invention discloses a machine vision-based simulation virtual machining system, belonging to the field of machine vision technology. The system includes a model import and preprocessing module, a machine vision recognition and calibration module, a machining path planning module, and a virtual simulation and optimization module. Its key technical points are: by adopting a comprehensive simulation testing and path optimization technology scheme, closed-loop verification of the machining path is achieved, thus preventing potential risks. A highly realistic virtual machining environment is constructed to perform comprehensive simulation testing on each path, checking for overcutting or collision phenomena. For problematic path segments, the system finds alternative path segments for replacement and performs a secondary comparison with the original path after replacement, thereby selecting the optimal path. This reduces the amount of secondary optimization processing required, improving machining safety and stability while also enhancing work efficiency.

The invention relates to the technical field of industrial part printing, and discloses an industrial part model placing method, which comprises the following steps: constructing an initial topological structure of an industrial part model, and calculating a translation matrix based on the deviation between the initial topological structure and a coordinate origin; a main supporting face is determined, and a rotation matrix is calculated based on the deviation between the main supporting face and the virtual machining platform; generating a combined transformation matrix based on the translation matrix and the rotation matrix, and applying the combined transformation matrix to the initial topological structure to obtain a second topological structure; rotating the second topological structure, and determining a third topological structure based on the volume of the bounding box of the second topological structure; fine-tuning the third topological structure to obtain a fine-tuning topological structure; and adjusting based on the industrial part model type to obtain a target topological structure, and placing the industrial part model according to the target topological structure. Manual participation is not needed, the labor cost is reduced, and the efficiency and the accuracy are improved. The self structural characteristics can be fully adapted, the machining process requirements can be met, and a reliable attitude reference is provided for follow-up efficient and high-precision machining execution.

The invention discloses a production process of a complex cavity injection mold, which provides accurate basic information for subsequent automatic processing by acquiring a 3D digital model of a complex cavity and extracting geometric characteristics and material attribute data, and reduces manual input errors. According to the method, the EDM machining area is automatically recognized based on the predefined machining rule base, the high-hardness material threshold value, the complex geometrical shape feature list and the machining feasibility criterion are used for replacing manual visual judgment, the recognition consistency and efficiency are improved, and omission or excessive design is avoided; the method comprises the following steps: performing dynamic feature classification on an identification area, generating a priority list, optimizing a processing sequence according to feature depth, angle and surface roughness requirements, ensuring key area priority processing, verifying a scheme through virtual EDM processing simulation, outputting optimized data, replacing actual trial cutting with simulation, reducing cost and period, and improving manufacturing success rate.

The invention relates to the technical field of digital control, and discloses a numerical control machining process virtual-real synchronous monitoring method and system based on digital twinning, and the method comprises the steps: carrying out the multi-dimensional semantic fusion of a kinematic structure, tool geometric description and the initial form of a workpiece blank in the machining process, and constructing a three-dimensional visual environment; synchronous driving control is conducted on the three-dimensional visual environment, and a three-dimensional virtual machining environment is obtained; performing collision interference judgment on the spatial relationship between the entities to obtain collision early warning information; performing multi-physical field evolution simulation on the machining deformation trend and the machining surface quality state to obtain a machining quality prediction result; performing virtual reproduction on the historical state to obtain a process backtracking environment; performing three-dimensional rendering on the real-time operation picture, the state of the collision early warning information, the process backtracking environment and the processing quality prediction result to obtain a three-dimensional visual monitoring interface and a quality prediction report; the efficiency of virtual and real synchronous monitoring in the numerical control machining process can be improved.

The invention relates to the technical field of virtual machining simulation, in particular to a double-inclined-hole machining rotation angle obtaining method and system and a storage medium. Comprising the following steps: constructing a virtual machining simulation model for machining double inclined holes; the 3D digital model of the machined part and the 3D digital model of the clamp used for clamping the part are called into the virtual machining simulation model; an included angle a1 and an included angle a2 are obtained in the zero position state of the virtual machining simulation model; determining a rotation angle A1 and an included angle a2 of double inclined hole machining based on the included angle a1 and the included angle a2; and verifying the rotation angle A1 and the rotation angle A2 to judge whether errors exist or not. The double-inclined-hole machining rotation angle obtaining method is very simple, the rotation angle needed in the double-inclined-hole machining process can be accurately and rapidly obtained in a virtual simulation mode, complex calculation of a technician on the rotation angle of a space angle hole (space hole) is reduced, and 100% correctness of all rotation postures of a part is ensured.

The invention discloses a semi-physical intelligent numerical control machining practical training evaluation system, which comprises a physical machine tool subsystem, a machining simulation subsystem, a virtual-real fusion subsystem and a practical training examination evaluation module, and is characterized in that the physical machine tool subsystem is used for realizing intelligent reconstruction and operation data acquisition of a machine tool; the machining simulation subsystem integrates a G code compiler and a three-dimensional tool magazine to realize real-time turning simulation; the virtual-real fusion subsystem is used for realizing millimeter-level alignment of a virtual machining model and a physical machine tool; and the practical training examination and evaluation module carries out multi-dimensional quantitative evaluation on the tool installation normalization, the code writing quality and the machining precision through nine steps of processes. The invention provides a novel semi-physical intelligent numerical control machining practical training evaluation system with high authenticity, immersion, operability and safety by breaking through key technologies such as natural feature mark-point-free real-time tracking registration, a multi-channel collaborative intelligent interaction mechanism and precise presentation of a numerical control turning simulation process under actual state control.

The invention provides a semiconductor crystal self-adaptive grinding method and system based on multi-source data fusion, and belongs to the technical field of semiconductor machining. The system integrates a rotary table, a grinding unit, an outer circle measuring instrument and an airborne orientation instrument. The method comprises the following steps: after rough grinding of the outer circle of a crystal, calculating a thermal drift vector by using a measuring instrument, and obtaining crystal orientation deviation by using an orientation instrument; fusing the data to construct a virtual machining coordinate system, and dynamically compensating a position error through multi-axis linkage; the feeding speed is adjusted in real time in Notch groove grinding based on an anisotropic hardness map of a crystal material. The influence of mechanical gaps and thermal deformation on precision is eliminated through soft positioning, the problem of edge breakage of hard and brittle crystals is effectively solved, and the machining precision and finished products are remarkably improved.

A processing path planning simulation device is provided, which includes a memory and a processor. The processor performs following operations: according to an obstacle model, multiple processing point positions, a mechanical arm model, a processing tool model, a model position relative relationship and a production strategy parameter, performing collision test simulation to generate multiple candidate poses of the mechanical arm model; performing path optimization algorithms on the multiple candidate poses to generate a pose sequence; performing an ant colony algorithm based on the pose sequence and the obstacle model to generate an optimal processing path; and based on the optimal processing path, simulating that an end point of the processing tool model on the mechanical arm model performs a virtual processing operation on the multiple processing point positions sequentially according to the multiple optimal nodes.

The invention belongs to the technical field of mechanical manufacturing equipment, and discloses a deformation control machining method for a full-curved-surface complex aircraft structural component, a virtual machining axis is constructed on a complex wing surface, then positioning bosses are symmetrically arranged on the two sides of the virtual machining axis, and in the process of correcting material deformation, the positioning bosses are symmetrically arranged on the two sides of the virtual machining axis. Boss end face references on different sides are symmetrically corrected, and it is guaranteed that the bosses form a mirror symmetry structure along the virtual machining axis all the time. The method has the advantages that the stress of the material is released step by step in order, and the defect that new stress accumulation is generated after correction by a traditional bench worker is overcome. And meanwhile, the full-curved-surface configuration artificially forms a mirror symmetry structure along the virtual machining axis, and positioning configuration deviation caused by positioning reference conversion does not need to be considered during repeated clamping.

The application relates to a method for processing a hub blank into a hub. The method comprises the following steps: obtaining a three-dimensional model of the hub; constructing a plurality of straight cylindrical surfaces coaxially surrounding a central axis of the three-dimensional model and being radially spaced apart along the three-dimensional model, wherein the straight cylindrical surfaces intersect the three-dimensional model; selecting a part intersecting the straight cylindrical surfaces from the three-dimensional model to obtain an intersection set; constructing a plurality of virtual planes perpendicular to the central axis of the three-dimensional model and being spaced apart from each other; determining a virtual machining path of the hub blank according to the intersection set and the plurality of virtual planes; determining a machining path of the hub blank according to the virtual machining path and position coordinates of the hub blank; and machining the hub blank along the machining path. The method can be applied to machining different hubs, and a corresponding design machining program need not be designed for each customized hub, thereby saving design time and improving the production efficiency of the customized hub.

The invention discloses an engineering data automatic labeling method based on feature direction matching, and belongs to the technical field of intelligent engineering labeling, and the method comprises the steps: constructing a three-dimensional processing forbidden zone grid model, generating an optimized labeling space coordinate set through a composite feature direction vector, and generating a multi-field interconnection engineering drawing through virtual processing simulation; on the basis of an engineering data dynamic response system, the updated annotation content is obtained, the annotation content is driven to respond to physical field changes in real time, and the movement track of the manufacturing equipment is restrained; and forming an interlocking mechanism for real-time response behaviors of physical field changes through manufacturing constrained evasion behaviors and updated annotation contents, and performing engineering data automatic annotation. By establishing the engineering data dynamic response system, the interlocking mechanism and the three-dimensional machining forbidden zone grid model, the collision risk caused by the dynamic change of the workpiece is foreseen and avoided, and the physical safety in the high-precision machining process and the dimensional precision of a final product are ensured.

The application discloses a garden Taihu stone unique peak shape automatic generation method and system in the technical field of garden construction, and comprises the following steps: firstly collecting data to obtain a shape database and an attribute database; introducing a size of a Taihu stone raw material into modeling software to obtain a virtual processing model; inputting shape control points and path control points to generate a unique peak initial shape conforming to the size of the Taihu stone raw material; optimizing the unique peak modeling of the initial shape to generate a final Taihu stone unique peak shape; and inputting the adjusted unique peak model data of the Taihu stone into a 3D printing numerical control machine to print and output a unique peak shape entity model. According to actual attribute requirements, the method can generate a unique peak shape meeting the aesthetic requirements of customers, and effectively reduces the cost and time of manual design; the method not only inherits the rules and characteristics of traditional unique peak shapes, but also innovates rich shape styles; and a three-dimensional entity scale model is provided, so that the accuracy of the Taihu stone raw material in processing is higher.

The disclosed method includes interacting with a manufacturing system and processing chambers via a graphical user interface (GUI). It includes receiving user input and displaying data from the processing chambers in multiple modes, such as a first mode with actual processing operation data and a second mode with virtual processing operation data, and displaying the corresponding data in the GUI. The method further includes outputting a graphical view of the manufacturing system, comprising the processing chambers, transfer chambers, and load locks, in selectable view options, and loading virtual models associated with the selected processing chambers and view options. The method includes providing simulation inputs of virtual substrate processing operations to the second model to obtain predicted output data, both datasets being displayed in the GUI for analysis.

The application discloses a production process of a complex cavity injection mold, and the production process obtains a 3D digital model of the complex cavity and extracts geometric feature and material attribute data, thereby providing accurate basic information for subsequent automatic processing and reducing manual input errors; an EDM processing area is automatically identified based on a predefined processing rule library, manual visual judgment is replaced by a high-hardness material threshold value, a complex geometric shape feature list and a processing feasibility criterion, consistency and efficiency of identification are improved, and omission or excessive design is avoided; the identified area is subjected to dynamic feature classification and a priority list is generated, a processing sequence is optimized according to feature depth, angle and surface roughness requirements, key areas are ensured to be processed in priority, a virtual EDM processing simulation is used to verify the scheme and output optimization data, actual trial cutting is replaced by simulation, cost and period are reduced, and manufacturing success rate is improved.