38 results about "G-code" patented technology

The present application relates to the technical field of additive manufacturing online monitoring and closed-loop control, in particular to a 3D printing workpiece defect identification system based on image detection; containing coaxial acquisition, potential mapping, diffusion analysis, singular point extraction and bidirectional feedback module; the system converts the collected image stream into a virtual flow velocity vector field; the core is to simulate the evolution of the physical field by using the virtual viscosity diffusion algorithm, calculate the difference of the vector field before and after diffusion to extract the topological mutation, and generate a defect potential thermal map; based on the potential value of the thermal map, the system performs bidirectional feedback of generating G code intervention instructions and adjusting the virtual viscosity coefficient; the present application reduces the pattern recognition to local physical field simulation, without sample training, and realizes millisecond-level real-time response.

Reducing display G code and / or machining shape by selected tool. A numerical control device which automatically generates a machining program, has: an association information storage section which stores association information which pre-associates tool information related to a plurality of tools, a shape identifier which indicates a shape which each of the plurality of tools can machine, and at least one G code which can be used in order to machine the shape indicated by the shape identifier; a tool information acquisition section which acquires tool information related to a tool selected in machining; a shape ID information extraction section which queries the association information storage section using the acquired tool information to extract a shape identifier which indicates a shape which can be machined by a tool of the acquired tool information; a machinable shape extraction section which extracts a machinable shape from CAD data according to the extracted shape identifier; and a machinable shape display section which displays the extracted machinable shape.

The application discloses a kind of soft material 4D printing method and device with regionalized magnetic domain direction.The method comprises the following steps: establishing partition three-dimensional model and planning printing path to generate original G code;Based on the preset magnetic domain direction requirement, obtain the driving parameters of multiple magnetic poles by magnetic field model reverse decoupling, and re-edit G code to integrate magnetic field control and UV light control instruction;Prepare UV-curable soft material containing magnetic particles;After setting printing parameters, execute printing, synthesize three-dimensional magnetic field of preset direction at extrusion point when material extrusion makes magnetic particles directional, and delay to open UV light curing to lock magnetic domain direction.The application realizes three-dimensional space regionalization editing of magnetic domain direction inside soft material, significantly improves the deformation design freedom and motion control accuracy of 4D printing product, and provides reliable technical support for integrated manufacturing of complex driven soft robot.

The application discloses a numerical control machine tool control method and system for complex curved surface machining, and relates to the field of numerical control machine tool control. The method comprises the following steps: extracting an original G code instruction stream, reconstructing ideal position instruction sequences and ideal speed instruction sequences of each motion shaft according to a machine tool kinematic chain model; estimating instruction phase lag amounts of each motion shaft through an inter-shaft phase lag predictor; combining geometric curvatures and tangent directions of a machining path, calculating estimated profile error vectors through a profile error coupling mapping model; combining profile accuracy requirement constraints of a surface to be machined and a shaft contribution weight matrix, and constructing a compensation optimization model; and fusing inter-shaft phase compensation instructions and the original G code instruction stream in a numerical control machining program according to a solution of the compensation optimization model, generating a synchronized instruction stream, and driving each shaft of the machine tool to move. The method solves the problems of poor synchronization of multi-shaft cooperative movement, low estimation accuracy, and low adaptability of instructions to mechanical structure characteristics of the machine tool.

The application discloses a hot-pressing dot cluster arrangement processing technology for improving the efficiency of BLU picture improvement, S1: light guide plate design, CAD software is used to draw design drawings of the light guide plate, and G code programs are exported for use of numerical control machine tools; S2: material selection and pretreatment; S3: installation and calibration; S4: according to the design requirements of the light guide plate, appropriate hot-pressing molds are designed and selected, the hot-pressing molds are divided into several independent areas, each area has different heating elements and pressure adjusting devices; S5: segmented processing, the light guide plate is divided into multiple areas, each area corresponds to different dot arrangements, different processing parameters are set in the G code programs; S6: detection and analysis. The dot cluster arrangement of the light guide plate processed by the application greatly improves the gap between clusters, so that the dot density reaches 100%, and the gap between clusters is also guaranteed to be greater than 40% of the length of the cluster dot, and the requirement of the hot-pressing equipment for transfer printing can be met.

The application discloses a numerical control program generation and simulation optimization system based on a large model, which comprises a voice recognition module for converting the voice instruction of a user into text information; a large model interaction module for automatically generating numerical control G codes compatible with target numerical control equipment through an algorithm model and / or a rule knowledge base; a simulation instruction recognition module for automatically generating corresponding simulation start instructions and operation instructions according to the numerical control G codes; a simulation environment execution module for automatically simulating, verifying and iteratively optimizing the numerical control G codes; and an optimization module for completing the iterative optimization. Through the integration of interactive voice recognition, deep learning driven large model text processing and precise automated simulation control, the application realizes the high automation of the whole numerical control programming process, improves the efficiency and accuracy of numerical control programming, and reduces the requirement for the professional knowledge of operators. The application also discloses a numerical control program generation and simulation optimization method based on the above system.

The invention discloses a numerical control machining tool checking method and system and a medium, and relates to the technical field of numerical control machining.The numerical control machining tool checking method comprises the following steps that the structural size of a tool checking block is obtained, a tool checking block model consistent with the structural size of the tool checking block is established, and the tool checking block is a conical tool checking block; a part machining main program is obtained, and a machining main program preposed file is converted into a G code of an NC program through postprocessing; current tool parameters are obtained, the current tool parameters are transmitted to a packaged fixed loop program, and the fixed loop program is used for calling a parameterized preset tool checking block subprogram; and executing an NC program including the fixed loop program, suspending processing when the NC program runs to a selective suspending instruction, and performing integrity check on the tool checking block. Dependence on experience of operators is reduced, human intervention risks are reduced, and machining automation and tool checking efficiency are improved.

The application provides a PC+I / O interface numerical control system G instruction and switch value instruction coordination method and device. The PC is used to complete G code / switch value instruction decoding and G code movement track rough interpolation. The switch value instruction is M code including M, S and T instruction codes. The I / O interface card is used to complete fine interpolation and control M code execution. The PC is provided with a decoding preprocessing module, a G code buffer, an M code buffer for switch value instruction buffering, a rough interpolation module, a rough interpolation data buffer, a channel B for rough interpolation data output, a channel A for switch value instruction data input control, an M code coordination module for switch value instruction coordination, and a channel C for M code data output control. The on / off states of the channel A, the channel B and the channel C are controllable. The I / O interface card is provided with an interpolation data buffer, a fine interpolation module, an M data buffer and an M code execution module. The application can realize efficient operation of the numerical control system and optimized machining effect.

A kind of broken tool early warning method of numerical control machine tool vertical milling cutter belongs to numerical control processing technical field, to solve the problem of existing broken tool early warning accuracy not high.This application method includes the following steps: the blank model shape contour is compared with the finished part shape contour in the same coordinate system, obtains processing area;Start machine tool, while executing G code program executes cutting judgment program;The cutting judgment program is: judging the position of vertical milling cutter, when vertical milling cutter is 1-3 seconds stroke away from processing area, start broken tool early warning program: collect the vibration signal of numerical control machine tool spindle;With M vibration signal as a group, record the vibration value peak in each group of vibration signal;Whether broken tool working condition occurs is judged by the vibration value peak of adjacent two groups of vibration signals.

The invention discloses an automatic programming system and tool based on artificial intelligence in the field of computer numerical control machining, and the system comprises a machining demand analysis module, a process planning AI module, an intelligent G code generation module, a machining process simulation module, a self-adaptive optimization module and a knowledge base management module. And the processing demand analysis module receives the part 3D model and the processing demand description, and extracts geometric features, precision requirements and material characteristics. Through deep fusion of an artificial intelligence technology and CNC programming, a full-automatic and intelligent programming process from a part model to a G code is realized. The system has remarkable advantages in the aspects of process planning, path optimization, parameter adjustment and the like, the programming efficiency and the processing quality are greatly improved, and the dependence on artificial experience is reduced. Practical cases prove that the programming efficiency can be improved by 85% or above, the machining efficiency can be improved by about 20%, the machining quality and stability are remarkably improved, and the method has wide application prospects and market value.

A kind of complex curve processing method of numerical control grinding machine based on curve table, comprising: obtaining user input process G code containing curve table;Load the process G code, the G code is handled according to preset rule, and executable cycle processing G code is generated;The cycle processing G code is executed, and during the execution of the G code, the functions of integrating processing trajectory, monitoring load current and G code online editing are realized.The present application defines processing cycle, sets processing parameters, generates complete processing cycle G code after superimposing the G code imported into the tool starting segment, tool retracting segment and transition path in the case of inputting complex curve process G code, under the action of monitoring module, when encountering empty cutting trajectory without processing, it can jump into the next segment of trajectory in advance, greatly improving the processing efficiency, significantly simplifying the processing flow, and can be well applied to grinding and other scenes requiring repeated multiple repeated trajectory processing.

The invention relates to a component organization system for realizing a CNC numerical control function, which comprises an application layer, an HAL core layer, a hardware driving layer and a physical equipment layer, the application layer, the HAL core layer, the hardware driving layer and the physical equipment layer are connected and installed in sequence and communicate through a standardized interface, the application layer is used for running track planning and G code interpretation, and the HAL core layer is used for carrying out data processing. The HAL core layer is used for signal routing and component management and central coordination, and a plurality of specific hardware interfaces are packaged in the hardware driving layer. By the adoption of the component organization system for achieving the CNC numerical control function, the problem of hardware dependence is solved through a modularized architecture, system performance is guaranteed through a real-time scheduling mechanism, system integration is simplified through a signal routing mechanism, and the system is managed through configuration. And the maintainability is improved. The whole scheme has high flexibility and reliability, and can meet the strict requirements of the industrial control field on real-time performance, certainty and maintainability.

The program editing device has a unit assigning section that assigns a unit to a machining program used for machining in a machining device, based on a G code and an argument of the G code included in the machining program, and an output section that outputs the machining program to which the unit is assigned by the unit assigning section.

The invention relates to the technical field of intelligent manufacturing, in particular to a trajectory planning method and device for a machine tool, equipment and a medium. The method comprises the following steps: analyzing a G code track file of the numerical control machine tool to generate a middle track instruction; in a Cartesian space trajectory represented by the intermediate trajectory instruction, calculating a direction included angle and a theoretical speed variation according to the pose parameter and the motion parameter; according to the direction included angle and the theoretical speed variation, dividing the trajectory points into segmentation points or merging points so as to perform trajectory segmentation and merging processing on the Cartesian space trajectory; based on the Cartesian space trajectory subjected to trajectory segmentation and merging processing, a joint space trajectory is constructed through discrete and inverse solution processing; and performing smooth transition processing and speed planning processing on the joint space trajectory to generate a machine tool control instruction. Compared with the prior art, the problems that a track planning method is low in machining efficiency, poor in precision and large in vibration in machine tool application are solved.

This program editing device comprises: a unit imparting unit that imparts a unit to a machining program on the basis of G codes and arguments of G codes included in a machining program used for machining in a machining device; and an output unit that outputs the machining program to which the unit is imparted by the unit imparting unit.

The invention relates to the technical field of aviation aircraft part numerical control machining, in particular to a G code automatic conversion and vector operation method. Comprising the steps of analyzing structural characteristics of an original machine tool and a target machine tool and deducing a cutter vector formula and a swing angle formula suitable for the original machine tool and the target machine tool; extracting tilt angle data of the original machine tool from a G code processing program of the original machine tool; calculating corresponding i, j and k vector values by utilizing an original machine tool cutter vector formula and the extracted tilt angle data, substituting the i, j and k vector values into a tilt angle formula of the target machine tool, and deducing a tilt angle value required by the target machine tool; according to whether the original machine tool and the target machine tool have the rotating center distance or not, rotating center distance processing is conducted to meet the machining requirement of the target machine tool; and according to the derived tilt angle value of the target machine tool and the processed actual machining coordinate value, generating a new G code program suitable for the target machine tool, and completing automatic conversion and vector operation of the G code. And automatic conversion of G codes of different pendulum shaft numerical control machine tools is realized.

The invention relates to the technical field of intelligent manufacturing of gear turning machining, in particular to a gear turning machining process package rapid generation method and system.The gear turning machining process package rapid generation method comprises the steps that gear turning machining basic parameters input by a user are received, and the machining basic parameters comprise workpiece gear parameters, tool parameters and machine tool parameters; derivation process parameters for numerical control machining are calculated on the basis of the machining basic parameters through preset geometric and kinematic models, and the derivation process parameters comprise the meshing position of a tool and a workpiece and the rotating speed of a C shaft; planning a tool path based on the derived process parameters, wherein the tool path comprises safety positioning, meshing feeding, machining execution and machining reset; and converting the tool path into a G code program which can be executed by a target numerical control system, and packaging the G code program, the machining basic parameters and the derived process parameters together to generate a gear turning machining process package file. The gear turning machining process package for machining the inner gear and the outer gear of the straight gear can be rapidly and reliably generated.

The application discloses a polishing machine grinding head pressure control method and system associated with a track, and the method comprises the following steps: generating a target pressure associated with the track; interpolating the target pressure; and performing PID control on the measured pressure according to the interpolated target pressure. The application does not significantly increase the software load of the numerical control system, and does not need to rely on other expensive equipment. Only the machining track G code and the key point pressure value are needed to automatically plan the pressure associated with the track in the numerical control system, and then the closed-loop pressure PID control is formed through the pressure sensor, so that the continuous change of the pressure associated with the track is realized, and the application is accurate, stable, reliable, convenient to debug and optimize. The application has the advantages of wide application range, low cost, simple debugging and the like.

The application installs a G code interpreter in the controller of a cutting robot; uses computer-aided design software to draw a planar contour graph; uses path drawing software to convert the contour graph into a G code program; inputs a cutting mode and cutting parameters in an input interface in an interface program; runs the interface program, inserts the cutting mode and cutting parameters into the G code program and optimizes the G code program; inputs the G code program into the controller of the cutting robot; places a honeycomb paperboard master plate on a suction platform and suctions and fixes the honeycomb paperboard master plate; starts an ultrasonic cutting knife, and the cutting robot starts to execute a cutting instruction, thereby solving the problem of automatic cutting of a honeycomb paperboard edge bevel.

A kind of complex cavity class part additive-subtractive composite manufacturing multilayer machining path adaptive planning method, first STEP model analysis is carried out, the mapping between computer and STEP model and topological relationship are established;Then carry out composite machining feature identification, according to the topological relationship between STEP model entity, based on feature map and composite machining judging criterion, identify composite machining feature in STEP model, and extract each composite machining internal topological ring and boundary;Finally, multilayer machining path planning is carried out, according to the boundary of topological ring extracted, using boundary guide method, obtain each topological ring tool shaft vector, tool contact point and extended tool path, according to the layer height interval of additive-subtractive alternation surface, according to G code rule, output corresponding machining path file;The present application can realize the required multilayer, multi-axis, precision controllable non-interference machining path fast generation of additive-subtractive composite manufacturing, effectively reduce the machining preparation time and workload of additive-subtractive composite manufacturing, improve the automation degree of entire composite manufacturing process.

The invention discloses a numerical control machine tool machining efficiency optimization method based on drawing programming, and relates to a numerical control machining technology in the field of machine manufacturing, in particular to the numerical control machine tool machining efficiency optimization method based on drawing programming, and the method mainly depends on manual judgment and experience of operators instead of system automatic analysis. The method comprises the following steps: firstly, manually interpreting an input part drawing by an operator, and identifying machining characteristics, process requirements and machining strategies; a G code instruction of a numerical control program is written or corrected manually, and a tool path is optimized to reduce idle stroke; machining parameters such as the spindle rotating speed and the feeding rate are manually set according to the hardware characteristics of the machine tool; and finally generating a numerical control program and executing machining. The system provides a drawing display interface, a programming tool interface and a parameter setting interface, but does not have an automatic drawing analysis or intelligent optimization function. According to the method, the process knowledge and skills of operators are exerted, the machining efficiency is optimized, and the method is suitable for numerical control machining scenes depending on artificial experience.

This invention discloses a method and system for identifying defect tool positions in five-axis CNC machining G-code, relating to the field of CNC machine tool technology. First, the tool position coordinates and rotation axis angles in the workpiece coordinate system are input into a transformation matrix to obtain the position coordinates of each feed axis control point in the machine tool coordinate system. Then, based on the specific geometric defect type, a target geometric feature sequence reflecting motion smoothness is extracted from the tool motion trajectory. Anomalies in the target geometric feature sequence are identified using the MAD method to obtain potential defect points in the tool motion trajectory. Next, the remaining tool positions are fitted to a trajectory, and the fitting error sequence from each potential defect point to the trajectory is obtained. Anomalies in the fitting error sequence are then identified using the MAD method to obtain abnormal tool positions among the potential defect points. Non-abnormal tool positions among the potential defect points are taken as defect tool positions. This invention avoids the misjudgment and omission phenomena of traditional methods, significantly improving the accuracy and reliability of defect identification.

The invention belongs to the technical field of intelligent control of numerical control machine tools, and particularly relates to a control method and system of a five-axis machining center. The method comprises the following steps: S1, acquiring equipment real-time operation information of the five-axis machining center; s2, according to the real-time operation information of the equipment, the wear state of the cutter and the current position and target position of the cutter defined by the G code, an optimization instruction of machining parameters is obtained through a pre-trained reinforcement learning model; s3, processing parameters in the G code are optimized according to the optimization instruction; and S4, controlling the five-axis machining center to machine the workpiece according to the optimized G code. The technical problems that in the prior art, tool path planning is not flexible enough, and long-term stable machining precision is difficult to guarantee are solved.

The application belongs to the technical field of CNC engraving supervision, and specifically relates to a CNC precision engraving control system and method, which specifically comprises a plate segmentation parameter analysis module, an engraving and opening track planning module, a multi-dimensional machining state sensing module, a real-time track correction and adjustment module, and a graphical simulation machining monitoring module; the application provides a high-precision block reference for machining through the plate segmentation parameter analysis module, generates standardized G code through the engraving and opening track planning module, collects full-dimensional data and performs preprocessing through the multi-dimensional machining state sensing module, dynamically compensates position deviation, adjusts feeding speed and rate through the real-time track correction and adjustment module, and realizes visual display of tracks and parameters through the graphical simulation machining monitoring module; when an abnormality occurs, sound and light alarms are triggered, and machining is paused, so that machining precision and operation stability are greatly improved, machining waste rate and operation and maintenance cost are significantly reduced, and intelligent control of precision engraving is realized.

The invention relates to a biological 3D printing path overlapping area material extrusion optimization method and system, and the method comprises the steps: obtaining a path planning G code of a 3D printer, extracting biological scaffold paths and endpoint information thereof based on the G code, and calculating a motion equation of each biological scaffold path based on the endpoint information; carrying out pairwise random combination on all biological scaffold paths, constructing a motion equation corresponding to each pair of path combination into a motion equation set, solving the motion equation set, and constructing a coincident point set based on a solving result; generating a control signal based on the coincidence point set, controlling an electric proportional valve to reduce output air pressure based on the control signal, and reducing extrusion of the biological material; the system provided by the invention is used for implementing the method. Compared with the prior art, the method capable of dynamically adjusting the air pressure of the electric proportional valve in the 3D printer is provided, the problem of material stacking in a path overlapping area caused by fixed air pressure is avoided, and therefore the printing precision and efficiency of the biological scaffold are improved.

The application discloses an open fluid chip preparation device and method based on airflow cutting, and belongs to the technical field of microfluidics. The device comprises an air source supply module, an airflow control module, a cutting execution module, a motion and positioning module and a terminal control module. The method comprises the following steps: placing a prepared wrinkle liquid cake on the motion and positioning module, adjusting and controlling the airflow control module so that the gas flow sprayed by the cutting execution module is suitable for the current liquid cake state; converting a planar pattern of a target fluid chip into G code and inputting the G code into a control computer; running the G code through the control computer to drive the motion and positioning module to move the cutting execution module according to a preset path, airflow cutting is performed on the wrinkle liquid cake to shape the open fluid chip. The application first uses high-speed airflow as a shaping tool, realizes the automatic and programmable preparation of the open fluid chip, is compatible with various hydrophobic particle materials, is simple to operate and has strong controllability.

The invention discloses an automatic generation and simulation system for a high-precision G code of a girder belt winding machine. The automatic generation and simulation system comprises a parameter input module, a G code generation module, a simulation verification module, a collision detection early warning module and a G code export module. The parameter input module provides a structured visual interactive interface and supports production personnel to input various process parameters, the G code generation module comprises a'process parameter-G code instruction 'mapping library constructed on the basis of N > = 50 successfully operated G code samples, the process parameters of the parameter input module are converted into G code files, the accuracy of the instructions is automatically checked, and the G code generation module is used for generating G code files. The simulation verification module constructs a simulation model which is the same as actual equipment. The invention provides a special system which is adaptive to a numerical control system of Siemens 828D and a higher version, automatically generates a G code based on process parameters and realizes track verification and collision early warning through high-precision simulation aiming at the pain point of manually compiling the G code of a girder belt winding machine.

The invention relates to the technical field of numerical control systems, and discloses an automatic test method and system for a numerical control system, electronic equipment and a medium. The method comprises the steps of obtaining a theoretical instruction interpolation track; obtaining an actual instruction interpolation track; obtaining the maximum local error of the theoretical instruction interpolation trajectory and the actual instruction interpolation trajectory corresponding to each G code according to a FastDTW algorithm; and comparing the maximum local error corresponding to each G code with a preset process threshold to obtain a test result. The calculation result of the adjusted FastDTW algorithm, namely the maximum local error, is directly compared with the preset process threshold value of the process requirement standard in the actual test application, and extra threshold value determination work is not needed. The search radius parameter of the FastDTW algorithm can balance the algorithm performance and accuracy to ensure that the test requirements are met to the maximum extent. The implementation and deployment cost is extremely low, the rapid online operation replaces manpower for actual test application, and the test efficiency of the numerical control system is improved.

The application discloses a post-processing method and system for a right-angle milling head of a numerical control machine tool. The method comprises the following steps: S1: analyzing tool position data; S2: performing normalization processing on the rotation angle and mapping to a standard angle interval, and then performing constraint condition checking; S3: automatically generating coordinate system G code instructions for realizing translation and rotation; S4: traversing machining path segment data, and converting each path segment into corresponding motion control G code instructions according to the path type; S5: identifying the drilling cycle type in the machining path, and automatically matching or calculating the cycle parameters to generate corresponding fixed cycle G code instructions; and S6: classifying all G code instructions according to functions and tracking modal states, and outputting corresponding instructions to the final numerical control program only when the modal state of the instructions changes. The application improves programming efficiency, machining safety and program execution efficiency, automatically processes special machining features to improve universality and reduce manual intervention.

An NC program creation device (132, 140) is configured to create an NC program to be executed by a machine tool (1) in which cutting chips are produced during cutting of a workpiece, and includes a reception unit (132) configured to receive a selection instruction in which a cutting chip length is selected, and a creation unit (143) configured to create an NC program including a G code or an M code for performing cutting so that cutting chips of the selected cutting chip length are produced, based on the selection instruction.