266 results about "G-code" patented technology

The invention discloses a detection analysis device for technical indexes of a numerical control device, belongs to a test device for the numerical control device, and solves the problems that the conventional detection analysis devices for the technical indexes of the numerical control device are not universal for various numerical control devices and the detected and analyzed technical indexes are not comprehensive. The detection analysis device comprises a data interface, a parameter setting module, a data processing module, an analog feedback module, an analysis evaluation module, a display module and a test code library. The data processing module computes the indication data received by the data interface, and the test result is output to the analysis evaluation module and the display module. The parameter setting module sets parameters of the analog feedback module. The test code library provides standard test G codes for each item to be tested. The detection analysis device for the technical indexes of the numerical control device simulates characteristics of actual servo drive, motor and machine tool by using the analog feedback module, computes corresponding feedback data, removes the influence of uncertainty of an actual electromechanical system and inconsistent processing performance of the machine tool, and can accurately and objectively analyze and evaluate each important technical index of the numerical control device.

A manual computer numerical control (CNC) programming method and system (which may be embodied in whole or part in an article of manufacture or apparatus) in which coordinates may be manually entered into a text editor into a file format known as the coordinate work sheet (CWS) including verification, modification and conversion of the CWS to G-Code, the coordinate work sheet format being a comma delimited ASCII text file, and further including cutter on/off commands and using computer aided design (CAD) data to generate the coordinate work sheet (CWS).

The invention provides a double-spray-nozzle 3D printing system and method of a thermoplastic resin base continuous fiber prepreg material. Double spray nozzles include a thermoplastic resin base continuous fiber prepreg material printing spray nozzle and a thermoplastic pure resin printing spray nozzle. The thermoplastic resin base continuous fiber prepreg material printing spray nozzle has the functions of thermoplastic resin base continuous fiber prepreg material feeding, guiding, clipping, heating and printing compaction, and all functions can be controlled through G codes. By the adoption of the method, the optimal design of a structural part to be printed is conducted according to the practical load condition, then 3D printing of the thermoplastic resin base continuous fiber prepreg material is conducted according to a mechanical optimized structure, and therefore the printed structural part enables thermoplastic resin base continuous fibers to achieve the highest utilization ratio, the consumption of raw materials is reduced, and the processing cost is reduced. In addition, the design of the double spray nozzles can achieve printing of parts with cantilever structures, and the cantilever structure portions can be printed and supported by the use of the thermoplastic pure resin printing spray nozzle.

The invention discloses a laser-induction hybrid melting direct forming method and device. The laser-induction hybrid melting direct forming method comprises the following steps of: generating a three-dimensional model of a part through CAD (Computer-Aided Design) software, and then slicing the three-dimensional model and generating a G code to drive a numerical control system and a base body to move; and melting synchronously fed metal or metal/ceramic hybrid powder through a high-power laser beam and an induction heat source, and depositing the three-dimensional part in a designed shape layer by layer, wherein a temperature controller is used for monitoring and controlling the temperature of the base body in the processing process. The device for realizing the laser-induction hybrid melting direct forming method comprises a laser, a light path system, an induction heating and temperature control system, a powder feed system and the numerical control system. The device can be used for directly generating large and medium size three-dimensional parts on various metal base bodies, has the advantages of high processing efficiency, compact part structure, fine crystalline grain, excellent mechanical property, less residual stress without deformation or cracking phenomenon, high processing flexibility without tools and moulds, high material utilization ratio, cleanness without pollution and capability of designing the components of a metal-ceramic hybrid layer as required and even changing the components in a gradient manner.

The invention relates to an industrial robot offline programming system that includes text edit and code conversion module that realizes G code digital control program converting to INFORMII code working program by my MOTOMAN robot to generate full MOTOMAN robot working file and realizes offline programming, visual verifying module that verifies and simulates the moving track by 3D image method. Communicating and telecontrol module realize communication between the processed file and MOTOMAN robot and download and upload program and telecontrol.

The invention relates to a supportless 3D printing method based on a five-axis printing platform. The supportless 3D printing method based on five-axis printing platform comprises the operation stepsthat feature edges are extracted, partitioning, rotating and slicing treatment is conducted on a mold, the printing transformation relationship of all blocks is determined, and G-codes are recombined.Through the five-axis printing platform, the A axis and the C axis of the platform can be rotated by corresponding angles, a model needing support is rotated to a plane with a base, and then supportless print is achieved. The supportless 3D printing method based on five-axis printing platform has the advantages that the printing time can be greatly shortened, the printing materials are saved, theoperation of removing support is not needed, open source hardware and software are applied, operation is easy, the supportless 3D printing method is suitable for most of 3D printers based on FDM technical principle, and the supportless 3D printing method has broad application prospect.

The invention discloses an electric arc additive and milling composite machining method. The electric arc additive and milling composite machining method comprises the following steps: (1) carrying out hierarchical slicing and route planning on an STL three-dimensional model of a part needing to be machined to generate a corresponding G code, and then importing the G code to an electric arc additive and milling machining composite device and machining; (2) carrying out electric arc additive manufacturing through control on on-off of a welding gun, on-off of argon gas and movement of the composite device; (3) suspending the electric arc additive machining, controlling the welding gun to be lifted higher relative to a milling cutter through the G code, moving formed parts to a space below the milling cutter and carrying out milling machining on an outline and a top surface while using the welding gun for accumulating to achieve a threshold value needed for the milling machining; and (4) concluding the machining to obtain the machined parts if the machining meets conclusion conditions; or else, turning to the step (2), and cyclically executing. The invention further discloses a corresponding product. The electric arc additive and milling composite machining method and the product, which are disclosed by the invention, enable the electric arc additive and milling composite machining to be effectively fused, and have high machining efficiency; and the accuracy and morphology dimensions of the machined parts are controlled better.

The invention relates to a five-axis linkage numerical control welding machine and the welding technique control method thereof. The welding technique control method comprises the following steps: adopting CAD/CAM to build a welding workpiece model; planning and outputting the specific welding spot sequence data; and then carrying out a coordinate conversion and generating a G-code numerical control program file by applying a specific machine tool kinematical formula. The mechanical transmission system ensures the five-axis linkage according to the converted specific welding-spot data, so as to optimize the position between the welding gun and the welding spot while welding, ensure that the welding product has the advantages of good quality uniformity, high repeatability precision, good movement and power performance, etc.; the mechanical transmission system includes three linear movement guide rails X, Y and Z which drive the welding guns to work, and two rotating shafts which drive the welding guns to rotate, wherein the linear movement guide rails can ensure that the rotating shafts can move transversely in any position in the working space, and the two rotating shafts which drive the welding guns to rotate can ensure that the welding guns can perform a 360-degree rotation round the welding spot, therefore, the welding machine and the control method thereof have the advantages of large machine tool stroke, no dead area, high generality, high suitability, etc.

The invention discloses an electric arc additive manufacturing method which comprises the following steps of (1) selecting a corresponding heat source type, a forming wire material, and a material type of a base plate according to the material requirement of a forming target part; (2) building a computer-aided design (CAD) geometric model of the forming target part, extracting a standard templatelibrary (STL) model, slicing the STL model, generating a G code file required for printing, and transmitting the G code to a printer; (3) setting printing parameters, starting the printer, and printing metal thin layers according to a planned route layer by layer; and (4) after finishing printing all layer sheets through the printer, carrying out arc failure through a welding gun, and obtaining the forming target part. An additive piece printed through the method provided by the invention is less in error and flawless, has the advantage of good surface quality, and is stable in process, high in dimensional accuracy and surface quality, short in processing period, and low in cost at the same time; the printing process is in closed-loop control, so that the automation degree is high, and thelabor intensity of operating personnel can be reduced; and continuous manufacturing can be realized, and the manufacturing efficiency is high.

Secure streaming method in a numerically controlled manufacturing system, where the 3D file of the 3D object such as a CAD file or STL file is not sent to the manufacturing machine, but is kept in asecured system. Instead, only the instructions for controlling the manufacturing machine (e.g., so called G-codes) are streamed to the manufacturing machine. Such instructions are secured so that only a specific manufacturing machine can make use of them. To this end, the set of instructions may be encoded, e.g., hashed on a secure server, using a server hash table while the manufacturing machine is provided with a local lookup hash table that is synchronized, e.g., loosely synchronized with the serve's hash table for converting the hashed instructions back to instructions suitable for operating the manufacturing machine.

The invention discloses a slicing treatment method for surface model surface ink jet printing. The method comprises the following steps: a surface model to be printed is separated from a computer, and is preserved as a STL format for data processing to remove redundant data; a corresponding relation between a peak and a facet is built; a layer-by-layer unfolding traversal mode of the peak of the STL model and a fork processing algorithm are designed; the peak and the facet are arranged by a certain sequence; the peak is traversed; the facet included under the peak is read; an angle of rotating the facet to be printed to the horizontal position and an optimal cutting line slope are calculated; a printing error is reduced; a layering tangent line and each edge of the triangular facet are intersected to obtain printing path data; and all peaks and facets are traversed to obtain a complete G code of the model to be printed. The slicing treatment method can prevent the step effect of the forming surface of the surface model and the precision problem caused by ink flowing, and can improve the surface overall connectivity and the printing precision.

The invention provides network connection based teaching equipment adopting multiple numerical control systems and a communication method. The equipment comprises an upper computer and a lower computer. The method is characterized in that the upper computer packs a G code file and an MCP instruction as the packed data and transmits the packed data to the lower computer; the lower computer receives the packed data, unpacks the packed data to obtain the unpacked data, then obtains the G code file and the MCP instruction from the unpacked data by calling the basis function of the conventional numerical control machine and uses the G code file and the MCP instruction to carry out instruction control on the machine; the lower computer packs the obtained machine state data, PLC state data and fault alarm data as the packed data and transmits the packed data to the upper computer; and the upper computer receives the packed data, unpacks the packed data to obtain the unpacked data and uses the unpacked data for displaying the machine state. Being adopted, the invention can add infinite sets of numerical control system programs without changing any hardware and dispense with purchasing multiple sets of numerical control machines equipped with different numerical control systems, thus greatly saving the equipment cost.

The invention discloses a conformal cutting layer and path planning method for curved surface 3D printing. The conformal cutting layer comprises a conformal curved surface cutting layer method and a three-dimensional space path planning method, the conformal curved surface cutting method comprises the following steps that defect inspection and repairing are carried out on a grid model, it is ensured that the outer surface of the model is a two-dimensional flow shape, if the grid surface is not an all-triangular unit, triangular formation is carried out on the grid surface; then regional segmentation is carried out, the printing sequence of each sub-portion and the approximate direction of the sub-layer are determined; the outer surface is converted into point cloud data, and the point cloud is biased inwards; the offset point cloud data is fit to form a triangular mesh surface; and the model is correspondingly divided into a plurality of curved surface layers to obtain a curved surfaceset; and the three-dimensional space path planning method comprises the following steps of checking whether the curved surface in the curved surface set is the two-dimensional flow shape or not, homogenizing the triangular unit, calculating the geodesic distance of each vertex of the grid relative to the designated reference point, extracting equivalent points, fitting to be a contour line, and converting into a G-code to obtain a printing path. According to the conformal cutting layer and path planning method, the special requirements of curved surface printing can be met.

The invention discloses a method for realizing the numerical control of grinding roller curves by using an NC program, which pertains to the method by adopting the NC program to control grinding processing, and aims at providing a method that adopts the current NC program to realize the numerical control of the grinding roller curves by means of the definition setting of a R parameter under the state that a numerical control system runs automatically. The method comprises steps of defining variable, transferring curve data, judging grinding type, inspecting the curve data, pre-treating the data before grinding, reading technological parameters, judging processing modes, finishing grinding, judging whether to end the grinding or not, judging the time of strokes, inspecting technological data, judging whether to relocate or not, grinding in positive direction or negative direction, calculating curves, commutating processing, finishing grinding, calculating of the finishing of the grinding and quitting position calculation, etc. The method of the invention needs no specialists to write the NC program, can write program and store a plurality of grinding curves, groups of technological parameters of grinding and the technological parameters of disc finishing, and can be applied to Siemens middle and high grade numerical control systems programmed by adopting G code.

The invention discloses a UG NX secondary development based numerical control blade periphery grinding parameterization programming method, which comprises the steps of establishing a periphery grinding machine three-dimensional simulation model, constructing a grinding machine kinematic chain, determining the direction of a machining coordinate system and drawing a blade blank model, drawing a grinding wheel three-dimensional model and carrying out parameterization, decomposing the blade periphery grinding process and establishing blade periphery profile mathematical models of corresponding procedures, deducing a grinding wheel processing track mathematical model of each procedure, programming a tool path model program file by using C++, programming a parameterization interface by using C#, carrying out assignment on variables in a program through the parameterization interface, drawing track points, verifying whether a tool path is reasonable or not by simulation processing, and generating G codes which can be directly applied to grinding machine processing through post-processing. Parameterization programming of the numerical control blade periphery grinding tool path is realized finally by using the method disclosed by the invention. The UG NX secondary development based numerical control blade periphery grinding parameterization programming method has the advantages of high universality, high programming efficiency and good machining quality.

The invention discloses a method for supporting the real-time correction to functions in a machine tool auxiliary motion control system of a highly-custom mechanism. The method comprises the following steps: writing a corresponding machine tool motion operation auxiliary control G-code routine into a subroutine format that is commonly used in a numerical control system; building all subroutines into an independent function library; making a .dat configuration file; and calling the corresponding G-code subroutine by a master routine while implementing the machine tool action. The invention enables that corresponding numerical control machine tools with different specifications and similar functions do not need to correct a numerical control software source code, and only need to correct corresponding subroutine function configuration files. The functions can be corrected directly in real time by a machine tool operator according to respective specific using conditions so as to match the actual environment. The invention has the advantages that the function and the realization of the machine tool action are separated, and the corresponding G code is not stored in the master routine and implemented in a free calling manner.

A method of transforming a G-code type part program into a STEP-NC language type part program is provided and more particularly, a method is provided for enabling a G-code type part program mainly used in the field to be easily applied to a STEP-NC controller without a troublesome correction. A STEP-NC language type part program is automatically created, which is composed of machining operation information, manufacturing feature information, machining strategy information and the like, through a process of analyzing G-codes from the G-code type part program and tool information. A method of transforming a G-code into a STEP-NC part program includes receiving a G-code part program, tools and a numerical controller; creating G-code block information, and partitioning the entire part program on a workingstep basis. The method further includes creating machining strategy information and creating the STEP-NC part program by arranging the machining workingsteps.

The invention takes the WEDM as an embodiment, and provides a stepping CNC system, a generating method of a machining file, and a real-time control method of a tool path curve. The tool path curve is planned with a high precision. A common G-code program is replaced by the machining file. A G-code programming is canceled. Therefore, compiling a machining program is as easy as writing a text message with the word, accordingly achieving the effect of 'operating a numerically-controlled machine tool like playing a cell phone, and programming as sending a message', thoroughly parting from the time of interpolation, and significantly lowering down the technical admittance limit as well as the cost of the CNC system. Technological parameters are subjected to a fine real-time control, thereby increasing the machining precision and the surface quality significantly, and providing an advantageous technological means for improving the machining precision and the surface quality of machining corners.

The invention discloses a free-form surface part processing system based on the multi-sensor integrated measurement technology. A non-contact type sensor and a contact type sensor are integrated to form a surface measuring component, a surface processing component is provided with a milling cutter, and the surface measuring component is connected with the surface processing component by a linear guide rail. A point-cloud processing component is used for realizing geometric processing for point-cloud data obtained by the non-contact type sensor, and provides processing G codes which can be directly actuated by a current work table to the surface processing component for processing. The surface measuring component measures a workpiece in a non-contact manner, and then measures a product which is obtained by means of fine processing in a contact manner. A quality detecting component is used for comparing errors of measured data obtained by the contact type sensor and obtains results of the quality of the product. The non-contact type sensor and the contact type sensor are integrated, an integrated function of 'measuring, processing and detecting' is realized on the same machine tool, manual intervention is omitted in a total process, and processing efficiency and automation degree are improved.

The invention discloses a method for smoothing the feed speed of multi-axis numerical control (NC) machining, which can be applied to multi-axis linkage NC machines with any standard or different structures so as to realize the feed-speed smoothing in the process of machining complicated curved surfaces of the multi-axis linkage NC machines. The method disclosed by the invention comprises the following steps: constructing a kinematics model of a multi-axis linkage NC machine at the post-processing stage of multi-axis NC machining, calculating the generalized motion distance of a cutter by using the Jacobean matrix, and then calculating the nominal feed speed of each row of G codes according to an expected surface cutting speed. In the process of carrying out multi-axis linkage NC machining, the multi-axis linkage NC machine moves according to the nominal feed speed, the actual cutting speed of a cutting blade of the cutter relative to the machined surface of a workpiece is the expected surface cutting speed, and the speed is constant, thereby realizing the feed speed smoothing of the cutter, and significantly improving the surface machining quality of parts.

The invention discloses a five-axis linkage machine tool numerical control system and a processing method thereof. The five-axis linkage machine tool numerical control system comprises a computer, a CNC (computer numerical control) device, a servo drive device and a machine tool, wherein a CAM (computer-aided manufacturing) software module is arranged in the computer which is connected with the CNC device, and the CNC device is connected with the servo drive device which is connected with the machine tool; the CAM software module sends a signal to the CNC device; the CNC device performs processing and analysis on the signal, generates a position control command, and sends the command to the servo drive device; and according to the position control command, the servo drive device drives the machine tool to run. By means of the five-axis linkage machine tool numerical control system and the processing method thereof, a profile processing route corresponding to a DXF (drawing interchange format) file graph is subjected to reading, preprocessing, unequal step segmentation and cutter compensation processing to obtain final to-be-processed data information; a G-code corresponding to the final to-be-processed data information is acquired, processed and analyzed to generate the position control command; therefore, requirements for high-speed high-precision multi-axis linkage multiple-tool combined machining are solved for light profiles.

A method of producing intricate, three-dimensional artwork requiring high resolution on the part of a Computer Numerical Control (CNC) machine is disclosed. An existing three dimensional carving is captured by a computer, and converted into a NURBS surface. The operator sets forth the dimensions of the surface to be carved, including the width and the length, as well as the width of its component stiles and rails. The operator further selects the corners of such surface in which the artwork is to be carved. Thereafter, the NURBS surface is scaled and positioned in accordance with the dimensions and parameters supplied, and transmitted to respective CNC machines. The CNC machines then perform a series of carving operations in accordance with the instructions supplied by a G-code file processed from the NURBS surfaces.

The invention discloses an embedded numerical control system based on ARM7 and FPGA, which comprises an ARM embedded microcontroller module of 32 digits and an FPGA control and interpolation module. An ARM7 microprocessor with a Von Neumann Architecture is adopted as a main controller of the embedded numerical control system and used for realizing a man-machine interface, a network interface, a system management interface and the functions of emulation display and G code compilation; an interpolation controller of the embedded numerical control system is used for realizing a real-time interpolation algorithm with high speed. Due to the adoption of the technical proposal, the embedded numerical control system based on ARM7 and FPGA improves the real-time performance, reliability and reusability of the system and reduces the volume and the costs of the system.

The invention provides a machining file planning system and a machining file generating method and particularly provides a simple and reliable tool path curve generating method and a real-time control method for parallel mechanisms (including parallel machine tools and parallel robots), five-axis computer numerical control machine tools and the other complicated computer numerical control devices. The high-accuracy planning is performed on a tool path curve so as to improve machining accuracy and motion stability of a coordinate axis, a universal G-code program is replaced by a machining file, G-code programming is omitted, machining program compiling is similar to short message editing through word, 'computer numerical control is just like mobile phone playing, and programming is similar to short message editing', the interpolation era is thoroughly over, and the technical access threshold and the required cost of a CNC system are remarkably reduced.

The invention relates to a six-axis mechanical arm operation method, and particularly relates to a six-axis mechanical arm movement control method based on G code programming, which uses G codes as transit to realize the automatic programming of six-axis mechanical arm movement. The six-axis mechanical arm movement control method based on G code programming comprises the following steps of: (1) constructing a visual model of a six-axis mechanical arm in a 3D (three dimensional) environment; (2) establishing the simulation virtual movement of the six-axis mechanical arm in a matlab simulation control platform; (3) generating G codes according to a path trajectory after drawing with Auto CAD/MasterCAM; (4) planning a movement path by using the generated G codes in combination with the movement characteristics of the six-axis mechanical arm; (5) generating instruction codes according to the movement planning programming of the six-axis mechanical arm, and then carrying out interactive analog simulation movement; (6) overcoming interference problems through interference experiments; and (7) causing the six-axis mechanical arm to complete automatic machining operation in a practical environment. The six-axis mechanical arm movement control method based on G code programming is high in accuracy of machining movement and effectively overcomes or prevents interference problems possibly happening during automatic control.