CN115564889A - Laser cutting synchronous simulation method based on laser cutting machine digital twin body - Google Patents
Laser cutting synchronous simulation method based on laser cutting machine digital twin body Download PDFInfo
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 209
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Abstract
The invention discloses a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine, which comprises the following steps: acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters; rendering and editing the geometric model according to the appearance details of the laser cutting machine, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine; collecting the operating data of the laser cutting machine processing state in the real physical environment and transmitting the operating data to a three-dimensional engine; the three-dimensional engine controls the digital twin body to synchronously simulate the processing process of the laser cutting machine according to the operation data. The invention carries out simulation on the laser cutting machine by a digital twin technology, more accurately and stably realizes real-time synchronous simulation of the running state of the laser cutting machine, and simultaneously prevents possible faults in the running process. And the feasibility of a new planning scheme can be verified through the digital twin body so as to reduce the planning cost of the production line and improve the production efficiency of the whole production line.
Description
Technical Field
The invention relates to the technical field of digital twinning, in particular to a laser cutting synchronous simulation method based on a digital twinning body of a laser cutting machine.
Background
The digital twin is a simulation process integrating multiple disciplines and multiple scales by fully utilizing data such as physical models, sensors, operation histories and the like. As a mirror image of an entity product in a virtual space, a digital twin can be regarded as a virtual world which is reconstructed in a network space by digitizing all elements of a physical world, such as people, objects, events and the like, and forms a physical world in a physical dimension and a digital world in an information dimension in a symbiotic coexistence and a virtual-real convergence pattern. The digital twin is the digital expression of real world things or systems, and realizes the feedback of a real physical system to a virtual space digital model.
The laser cutting process uses light beam to replace traditional mechanical knife, uses high power density laser beam to irradiate the cut material, the material is heated to vaporization temperature quickly, and is vaporized to form hole, along with the movement of the light beam to the material, the hole continuously forms narrow kerf, and completes the cutting of the material, the laser cutting uses focused high power density laser beam to irradiate the workpiece, the irradiated material is melted, vaporized, ablated or reaches burning point, at the same time, the melted material is blown off by high speed air flow coaxial with the light beam, thereby realizing the cutting of the workpiece. The laser cutting machine has the characteristics of high precision, quick cutting, no limitation on cutting pattern limitation, automatic typesetting, material saving, smooth cut, low processing cost and the like, and can gradually improve or replace the traditional metal cutting process equipment.
The input cost of the laser cutting production line is high, the change cost is larger after the input, if the laser cutting process can be visually and visually simulated in a synchronous mode when the laser cutting production line is planned or operated, the problem that the early planning cost of the laser cutting production line is high can be favorably solved, and the technical support is provided for the fault prediction of the operation process of the laser cutting machine.
Disclosure of Invention
The invention aims to provide a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine, which is used for carrying out simulation on the laser cutting machine through a digital twin technology and realizing real-time synchronous simulation of the running state of the laser cutting machine more accurately and stably.
In order to achieve the purpose, the invention provides the following scheme:
a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine comprises the following steps:
acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters;
rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine;
collecting operating data of the machining state of the laser cutting machine in a real physical environment;
transmitting the running data to the three-dimensional engine through the compiled data interaction script;
and the three-dimensional engine controls the digital twin body to synchronously simulate the process of machining a workpiece by the laser cutting machine according to the operation data.
Optionally, the obtaining physical parameters of the laser cutting machine in the real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters includes:
acquiring physical parameters of a laser cutting machine in a real physical environment; the physical parameters comprise basic parameters of all parts forming the laser cutting machine and assembly relations among all the parts; the basic parameters comprise the model and the size of each part; the assembly relationship includes constraint limits between the various parts;
establishing a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part;
and splicing the geometric models of the parts according to the assembly relation among the parts to construct the geometric model of the laser cutting machine.
Optionally, the rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin of the laser cutting machine, includes:
acquiring the appearance details of the laser cutting machine in a real physical environment;
importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model, and generating a rendered geometric model;
carrying out lightweight editing on the rendered geometric model to obtain an edited geometric model;
and importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
Optionally, the acquiring operation data of the laser cutting machine processing state in the real physical environment includes:
compiling a data interaction script, scanning by external equipment to obtain an IP address of the laser cutting machine, and adding the IP address into the data interaction script;
the data interaction script opens an interface to external equipment, and acquires the operating data of the laser cutting machine processing state in the real physical environment through the external equipment; the operation data comprises basic parameters of a machine tool of the laser cutting machine, and processing conditions, real-time coordinates and limit coordinates of each part.
Optionally, the transmitting the running data to the three-dimensional engine through the written data interaction script includes:
establishing a website server through the data interaction script, wherein the website server is in communication connection with the three-dimensional engine through socket.
And the website server performs data compression and encryption on the operation data and transmits the compressed and encrypted operation data to the three-dimensional engine.
Optionally, the three-dimensional engine controls the digital twin body synchronous simulation laser cutting machine to process the workpiece according to the operation data, and the process includes:
the three-dimensional engine controls multiple types of sub-motions in the motion process of the digital twin body according to the operation data, and synchronously simulates the process of machining a workpiece by a laser cutting machine; the multi-class motions include: the beam moves back and forth along the x-axis direction, the cutting head moves back and forth along the y-axis direction of the beam, and the cutting head moves up and down along the z-axis direction.
Optionally, the method further comprises inputting the production scheme configuration information planned in advance into the laser cutting machine digital twin body, and verifying the feasibility of the production scheme.
A laser cutting synchronous simulation system based on a digital twin body of a laser cutting machine comprises:
the geometric model building module is used for obtaining physical parameters of the laser cutting machine in a real physical environment and building a geometric model of the laser cutting machine according to the physical parameters;
the digital twin body construction module is used for rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine;
the operation data acquisition module is used for acquiring operation data of the processing state of the laser cutting machine in a real physical environment;
the running data transmission module is used for transmitting the running data to the three-dimensional engine through the compiled data interaction script;
and the digital twin body simulation module is used for controlling the digital twin body synchronous simulation laser cutting machine to process the workpiece by the three-dimensional engine according to the operation data.
Optionally, the geometric model building module includes:
the physical parameter acquisition unit is used for acquiring physical parameters of the laser cutting machine in a real physical environment; the physical parameters comprise basic parameters of all parts forming the laser cutting machine and assembly relations among all the parts; the basic parameters comprise the model and the size of each part; the assembly relationship includes constraint limits between the various parts;
the part geometric model building unit is used for building a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part;
and the geometric model building unit is used for splicing the geometric models of the parts according to the assembly relation among the parts to build the geometric model of the laser cutting machine.
Optionally, the digital twin building block comprises:
the appearance detail acquiring unit is used for acquiring the appearance details of the laser cutting machine in the real physical environment;
the geometric model rendering unit is used for importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model and generating the rendered geometric model;
the geometric model editing unit is used for carrying out lightweight editing on the rendered geometric model to obtain an edited geometric model;
and the digital twin body construction unit is used for importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine, which comprises the following steps: acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters; rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine; collecting operating data of the machining state of the laser cutting machine in a real physical environment; transmitting the running data to the three-dimensional engine through the written data interaction script; and the three-dimensional engine controls the digital twin body to synchronously simulate the process of machining a workpiece by the laser cutting machine according to the operation data. According to the invention, the laser cutting machine is subjected to simulation through a digital twinning technology, the process of processing a workpiece by the laser cutting machine is synchronized in real time in a virtual environment, the laser cutting machine which operates at high precision is monitored in real time, the visual simulation of the normal operation and the real-time state of the laser cutting machine is realized, and meanwhile, the faults which possibly occur in the operation process are prevented. And the feasibility of a new planning scheme can be verified through the digital twin body so as to reduce the planning cost of the production line and improve the production efficiency of the whole production line.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine according to the present invention;
FIG. 2 is a schematic diagram of a digital twin model of a laser cutting machine according to the present invention;
fig. 3 is a schematic structural diagram of a laser cutting synchronous simulation system based on a digital twin body of a laser cutting machine provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a laser cutting synchronous simulation method based on a digital twinning body of a laser cutting machine, which is used for simulating the laser cutting machine through a digital twinning technology and more accurately and stably realizing real-time synchronous simulation of the running state of the laser cutting machine.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a flowchart of a laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine according to the present invention. As shown in fig. 1, the laser cutting synchronous simulation method based on the digital twin body of the laser cutting machine of the present invention comprises:
step 101: and acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters.
The step 101 specifically includes:
step 1.1: and acquiring physical parameters of the laser cutting machine in a real physical environment. The physical parameters comprise basic parameters of each part forming the laser cutting machine and assembly relations among the parts. The basic parameters comprise the model and the size of each part, and the assembly relation comprises constraint limits among the parts.
Step 1.2: and establishing a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part. Specifically, a model of each part of the laser cutting machine is established through three-dimensional modeling software SolidWorks according to the model and the size of each part.
Step 1.3: and splicing the geometric models of the parts according to the assembly relation among the parts to construct the geometric model of the laser cutting machine. And concretely, virtually assembling each part model in three-dimensional modeling software SolidWorks, defining the assembly relationship among the parts, splicing the models of the parts, and completing the three-dimensional parameterized initial geometric model of the laser cutting machine. And after the initial geometric model is built, saving the built model in a sldprt format so as to open and edit in the rendering software 3 dsmax.
Step 102: and rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine.
The step 102 specifically includes:
step 2.1: and acquiring the appearance details of the laser cutting machine in the real physical environment.
Step 2.2: and importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model, and generating the rendered geometric model.
Specifically, the stored initial geometric model is imported into three-dimensional rendering software 3dsmax, the geometric model is rendered and edited according to the appearance details of the laser cutting machine, and the model proportion is adjusted, so that the geometric model is closer to real laser cutting machine equipment.
Step 2.3: and carrying out lightweight editing on the rendered geometric model to obtain an edited geometric model.
Specifically, lightweight editing is performed on each part by using three-dimensional rendering software 3dsmax, redundant points, lines and surfaces are deleted, and then the lightweight parts are reassembled, so that lightweight editing of the geometric model is achieved. The edited model is saved as fbx format to be opened in the three-dimensional engine Unity 3D.
Step 2.4: and importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
Step 103: and collecting the operating data of the laser cutting machine in the real physical environment.
The step 103 specifically includes:
step 3.1: writing a data interaction script, scanning by external equipment to obtain an IP address of the laser cutting machine, and adding the IP address into the data interaction script.
Specifically, a JavaScript language is used for writing a data interaction script, a prepared external device laser intelligent magic box is used for scanning and finding the IP address of a laser cutting machine through a node building environment, and the IP address is added into the data interaction script.
Step 3.2: the data interaction script opens an interface to external equipment, and acquires the operating data of the laser cutting machine processing state in the real physical environment through the external equipment; the operation data comprises basic parameters of a machine tool of the laser cutting machine, and processing conditions, real-time coordinates and limit coordinates of each part.
Specifically, the data interaction script calls an account number to an application interface of the laser intelligent magic box, and after the application is successful, the laser intelligent magic box gives key (key) parameters. And (3) carrying a key parameter, a timestamp parameter and a sign parameter to call an APItoken (token) of the server side, finding the operating data of the laser cutting machine and collecting the operating data of the laser cutting machine. The operation data includes basic parameters of the machine tool (specification and size of the machine tool, structural dimension parameters, motion parameters, etc.), machining conditions, real-time coordinates (real-time three-dimensional coordinates of the cutting head), limit coordinates (limit position coordinates that the cutting head can reach), and the like.
Step 104: and transmitting the running data to the three-dimensional engine through the written data interaction script.
The step 104 specifically includes:
step 4.1: and establishing a website server through the data interaction script, wherein the website server is in communication connection with the three-dimensional engine through socket.
Step 4.2: and the website server performs data compression and encryption on the operation data and transmits the compressed and encrypted operation data to the three-dimensional engine.
Specifically, an application framework is introduced through the data interaction script, and a website server is created. The acquired operation data is encrypted and processed through an information abstract algorithm, and the safety of the data interaction and transmission process is improved. And (3) starting gzip (namely a file compression program GNUzip) configuration on the acquired data, compressing the data, reducing the volume of the transmission file and enabling the transmission speed to be higher.
Io communication connection is adopted for transmitting coordinate data collected from the laser intelligent magic box interface, and the coordinate data mainly comprises three-dimensional real-time coordinates of an x axis, a y axis and a z axis of a laser cutting machine.
A setTimeout (timer function) is set in the data transmission process, and after the website server is started, coordinate data transmission is performed every 200 ms.
And meanwhile, the monitoring port is started, and the digital twin model can be opened to the webpage client after the website server is started.
Step 105: and the three-dimensional engine controls the digital twin body to synchronously simulate the process of machining the workpiece by the laser cutting machine according to the operation data.
The three-dimensional engine controls multiple sub-motions in the motion process of the digital twin body according to the operation data, and synchronously simulates the process of machining a workpiece by a laser cutting machine; the multi-class motions include: the beam moves back and forth along the x-axis direction, the cutting head moves back and forth along the y-axis direction of the beam, and the cutting head moves up and down along the z-axis direction.
Specifically, the digital twin body receives cutting head coordinate data of the laser cutting machine in a real physical environment, the data is updated every 200ms, and the digital twin body synchronously moves coordinates of the cutting head through the sub-motion.
The three-dimensional engine controls various sub-movements in the digital twin movement process. Wherein neutron motion includes, but is not limited to: the beam moves back and forth along the x-axis direction, the cutting head moves back and forth along the y-axis direction of the beam, and the cutting head moves up and down along the z-axis direction.
And repeatedly receiving the operation data of the laser cutting machine in the real physical environment, synchronously moving the cutting head in the digital twin body, and simulating the process of machining the workpiece by the laser cutting machine.
FIG. 2 is a schematic diagram of a digital twin model of a laser cutting machine according to the present invention. The 3000 ports are opened through the nodes, the 3000 ports can be monitored by the webpage server, the digital twin model of the laser cutting machine can be checked and displayed by opening the webpage, and the normal operation and real-time state visual simulation of the laser cutting machine are realized, as shown in fig. 2.
After the digital twin model of the laser cutting machine is established, the configuration information of the production scheme planned in advance can be input into the digital twin of the laser cutting machine, and the feasibility of the production scheme is verified.
By adopting the laser cutting synchronous simulation method based on the digital twin body of the laser cutting machine, the following beneficial effects can be achieved:
(1) The method has the advantages that the digital twin body of the laser cutting machine is constructed, the digital twin body of the laser cutting machine can be used for simulating the operation process of the laser cutting machine in a real physical environment, the mapping of physical equipment is completed in a virtual environment, real-time synchronization is achieved, the laser cutting machine which operates in a high-precision mode is visually monitored in real time, fault early warning output which possibly occurs in the operation process of the laser cutting machine is achieved, and faults occurring in the working process of the laser cutting machine are avoided.
(2) A laser cutting production line simulation model can be constructed through a digital twin body of the laser cutting machine, the operation of the production line is synchronized in real time, the production process is detected and pre-warned, defective products are prevented from being generated abnormally in the cutting process, and therefore the product quality is improved. Meanwhile, production line stop is not needed, and feasibility of the scheme can be verified after the production scheme configuration information planned in advance is input, so that production line planning cost is reduced, and production efficiency of the whole production line is improved.
Based on the method provided by the invention, the invention also provides a laser cutting synchronous simulation system based on the digital twin body of the laser cutting machine. Referring to fig. 3, the system includes:
the geometric model building module 301 is configured to obtain physical parameters of the laser cutting machine in a real physical environment and build a geometric model of the laser cutting machine according to the physical parameters.
And the digital twin body construction module 302 is used for rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine.
And the operation data acquisition module 303 is used for acquiring operation data of the processing state of the laser cutting machine in the real physical environment.
And the running data transmission module 304 is used for transmitting the running data to the three-dimensional engine through the written data interaction script.
And the digital twin body simulation module 305 is used for controlling the digital twin body synchronous simulation laser cutting machine to process the workpiece by the three-dimensional engine according to the operation data.
The geometric model building module 301 specifically includes:
the physical parameter acquisition unit is used for acquiring physical parameters of the laser cutting machine in a real physical environment; the physical parameters comprise basic parameters of all parts forming the laser cutting machine and assembly relations among all the parts; the basic parameters comprise the model and the size of each part; the assembly relationship includes constraint limits between the various parts.
And the part geometric model building unit is used for building a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part.
And the geometric model building unit is used for splicing the geometric models of the parts according to the assembly relation among the parts to build the geometric model of the laser cutting machine.
The digital twin constructing module 302 specifically includes:
and the appearance detail acquiring unit is used for acquiring the appearance details of the laser cutting machine in the real physical environment.
And the geometric model rendering unit is used for importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model and generating the rendered geometric model.
And the geometric model editing unit is used for carrying out lightweight editing on the rendered geometric model to obtain the edited geometric model.
And the digital twin body construction unit is used for importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A laser cutting synchronous simulation method based on a digital twin body of a laser cutting machine is characterized by comprising the following steps:
acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters;
rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment, and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine;
collecting operating data of the processing state of the laser cutting machine in a real physical environment;
transmitting the running data to the three-dimensional engine through the written data interaction script;
and the three-dimensional engine controls the digital twin body to synchronously simulate the process of machining a workpiece by the laser cutting machine according to the operation data.
2. The laser cutting synchronous simulation method based on the laser cutting machine digital twin body according to claim 1, wherein the acquiring physical parameters of the laser cutting machine in a real physical environment and constructing a geometric model of the laser cutting machine according to the physical parameters comprises:
acquiring physical parameters of a laser cutting machine in a real physical environment; the physical parameters comprise basic parameters of all parts forming the laser cutting machine and assembly relations among all the parts; the basic parameters comprise the model and the size of each part; the assembly relationship includes constraint limits between the various parts;
establishing a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part;
and splicing the geometric models of the parts according to the assembly relation among the parts to construct the geometric model of the laser cutting machine.
3. The method for synchronously simulating the laser cutting based on the digital twin body of the laser cutting machine according to claim 1, wherein the rendering and editing of the geometric model according to the appearance details of the laser cutting machine in the real physical environment and the importing into a three-dimensional engine for generating the digital twin body of the laser cutting machine comprise:
acquiring the appearance details of the laser cutting machine in a real physical environment;
importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model, and generating a rendered geometric model;
carrying out lightweight editing on the rendered geometric model to obtain an edited geometric model;
and importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
4. The laser cutting synchronous simulation method based on the laser cutting machine digital twin body according to claim 1, wherein the acquiring of the operation data of the laser cutting machine processing state in the real physical environment comprises:
compiling a data interaction script, scanning by external equipment to obtain an IP address of the laser cutting machine, and adding the IP address into the data interaction script;
the data interaction script opens an interface to external equipment, and acquires the operating data of the processing state of the laser cutting machine in a real physical environment through the external equipment; the operation data comprises basic parameters of a machine tool of the laser cutting machine, and processing conditions, real-time coordinates and limit coordinates of each part.
5. The laser cutting synchronous simulation method based on the laser cutting machine digital twin body according to claim 1, wherein the transmitting the running data into the three-dimensional engine through the written data interaction script comprises:
establishing a website server through the data interaction script, wherein the website server is in communication connection with the three-dimensional engine through socket.
And the website server performs data compression and encryption on the operation data and transmits the compressed and encrypted operation data to the three-dimensional engine.
6. The laser cutting machine digital twin-based laser cutting synchronous simulation method according to claim 1, wherein the three-dimensional engine controls the digital twin synchronous simulation laser cutting machine to process a workpiece according to the operation data, and the method comprises the following steps:
the three-dimensional engine controls multiple types of sub-motions in the motion process of the digital twin body according to the operation data, and synchronously simulates the process of machining a workpiece by a laser cutting machine; the multi-class motions include: the beam moves back and forth along the x-axis direction, the cutting head moves back and forth along the y-axis direction of the beam, and the cutting head moves up and down along the z-axis direction.
7. The laser cutting synchronous simulation method based on the laser cutting machine digital twin body according to claim 1, characterized by further comprising inputting production scheme configuration information planned in advance into the laser cutting machine digital twin body to verify feasibility of the production scheme.
8. A laser cutting synchronous simulation system based on a digital twin body of a laser cutting machine is characterized by comprising:
the geometric model building module is used for obtaining physical parameters of the laser cutting machine in a real physical environment and building a geometric model of the laser cutting machine according to the physical parameters;
the digital twin body construction module is used for rendering and editing the geometric model according to the appearance details of the laser cutting machine in the real physical environment and importing the geometric model into a three-dimensional engine to generate a digital twin body of the laser cutting machine;
the operation data acquisition module is used for acquiring operation data of the machining state of the laser cutting machine in a real physical environment;
the running data transmission module is used for transmitting the running data to the three-dimensional engine through the compiled data interaction script;
and the digital twin body simulation module is used for controlling the digital twin body synchronous simulation laser cutting machine to process the workpiece by the three-dimensional engine according to the operation data.
9. The laser cutting synchronous simulation system based on the laser cutting machine digital twin body according to claim 8, wherein the geometric model building module comprises:
the physical parameter acquisition unit is used for acquiring physical parameters of the laser cutting machine in a real physical environment; the physical parameters comprise basic parameters of all parts forming the laser cutting machine and assembly relations among all the parts; the basic parameters comprise the model and the size of each part; the assembly relationship includes constraint limits between the various parts;
the part geometric model building unit is used for building a geometric model of each part of the laser cutting machine through three-dimensional modeling software based on the basic parameters of each part;
and the geometric model building unit is used for splicing the geometric models of the parts according to the assembly relation among the parts to build the geometric model of the laser cutting machine.
10. The laser cutting synchronous simulation system based on the laser cutting machine digital twin body according to claim 8, wherein the digital twin body construction module comprises:
the appearance detail acquiring unit is used for acquiring the appearance details of the laser cutting machine in the real physical environment;
the geometric model rendering unit is used for importing the geometric model into three-dimensional rendering software, rendering the geometric model according to the appearance details of the laser cutting machine, adjusting the proportion of the geometric model and generating the rendered geometric model;
the geometric model editing unit is used for carrying out lightweight editing on the rendered geometric model to obtain an edited geometric model;
and the digital twin body construction unit is used for importing the edited geometric model into a three-dimensional engine to construct a digital twin body of the laser cutting machine.
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