CN116796464A - Cutting machining real-time simulation visualization method based on illusion engine - Google Patents
Cutting machining real-time simulation visualization method based on illusion engine Download PDFInfo
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- CN116796464A CN116796464A CN202310777111.2A CN202310777111A CN116796464A CN 116796464 A CN116796464 A CN 116796464A CN 202310777111 A CN202310777111 A CN 202310777111A CN 116796464 A CN116796464 A CN 116796464A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 36
- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 238000003754 machining Methods 0.000 title claims abstract description 20
- 238000007794 visualization technique Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 14
- 238000012800 visualization Methods 0.000 claims description 14
- 238000013507 mapping Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 230000009191 jumping Effects 0.000 claims description 6
- 238000009877 rendering Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37533—Real time processing of data acquisition, monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/18—Details relating to CAD techniques using virtual or augmented reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/21—Collision detection, intersection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
- G06T2219/20—Indexing scheme for editing of 3D models
- G06T2219/2008—Assembling, disassembling
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- Computer Graphics (AREA)
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Abstract
The invention relates to the technical field of numerical control machining of mechanical products and discloses a cutting real-time simulation visualization method based on a fantasy engine. The method can acquire dynamic data of the physical machine tool in real time in the virtual system, drives the virtual machine tool to remove workpiece materials to be processed in real time, well realizes the real-time visual monitoring effect of the machining process of the numerical control machine tool, and improves the informatization level of numerical control machining.
Description
Technical Field
The invention relates to the technical field of numerical control machining of mechanical products, in particular to a cutting machining real-time simulation visualization method based on a fantasy engine.
Background
Today, in a large background of global manufacturing industry full-scale, a numerically controlled machine tool is used as a basic equipment of an intelligent manufacturing system, and is necessarily required to adapt to an intelligent manufacturing mode. The simulation of numerical control machining comprises two parts, namely physical simulation and geometric simulation, and how to realize real-time online cutting geometric simulation is a key problem in the intelligent manufacturing field.
At present, the following problems still exist in the geometric simulation of the cutting process of the numerical control machine tool.
(1) The cutting geometry simulation is mainly offline simulation, mainly for verifying the correctness of the tool path, preventing the conditions of interference, over-cutting, under-cutting and the like, and not interacting with the numerical control machine in real time;
(2) The monitoring in the machine tool processing process is mainly based on the electronic billboard monitoring of video acquisition, the data is single, and the sensing efficiency of the monitoring is low;
(3) The real-time visual virtual monitoring has insufficient sense of reality, and most numerical control simulation systems are rough in modeling to reduce occupation, so that the simulation of the processing process is not fine and visual enough, and the immersion sense is weak.
Therefore, how to realize real, efficient and fine real-time simulation visual monitoring of cutting machining needs further intensive research.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the existing numerical control machine tool on-line cutting geometry simulation technology, the invention provides a cutting real-time simulation visualization method based on an illusion engine, which can acquire dynamic data of a physical machine tool in real time in a virtual system, drive the virtual machine tool to remove workpiece materials to be processed in real time, well realize the real-time visualization monitoring effect of the numerical control machine tool processing process and promote the networked and informationized development of the numerical control technology.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the method comprises a physical modeling module, a data acquisition module and a cutting visualization module, wherein the physical modeling module is used for establishing mapping between a virtual machine tool and a real physical machine tool, the data acquisition module is used for data communication between the physical machine tool and the virtual machine tool, and the cutting visualization module is used for displaying the real-time removal effect of materials.
Preferably, the physical machine tool and the virtual machine tool in the physical modeling module are generalized machine tools, and comprise a clamp, a cutter and a workpiece to be processed besides a machine tool body.
Preferably, the virtual machine tool mapping the real physical machine tool in the physical modeling module models according to the proportion of 1:1, and the building steps comprise:
(1) Drawing a machine tool structure and characteristics thereof by using three-dimensional modeling software UG, and storing the machine tool structure and the characteristics thereof in a STEP format;
(2) Reading the UG model by using 3D Max, rendering and mapping to enable the three-dimensional model to be completely consistent with the characteristics of the physical space, and deriving an FBX format;
(3) And reading the 3D Max model by using the illusion engine, and establishing a corresponding father-son relationship for the model according to the real association relationship of the machine tool parts, thereby completing the construction of the virtual machine tool.
Preferably, the data communication of the data acquisition module is completed based on an open platform communication unified architecture OPC UA, and the communicated data is three coordinate values of the cutter.
Preferably, the implementation step of the cutting visualization module includes:
(1) The virtual machine receives three coordinate values of a cutter transmitted in real time by an open platform communication unified architecture OPC UA, and drives the cutter in the virtual machine to move;
(2) Judging whether the moving tool collides with the workpiece to be processed or not through the collision body attribute of the tool and the workpiece to be processed in the virtual machine tool, if not, jumping to execute the step (1), continuously receiving three coordinate values of the tool to drive the tool to move, and if so, executing the step (3);
(3) And (3) a cutter in the virtual machine tool collides with the workpiece to be processed, boolean operation is carried out on the part of the workpiece to be processed, which collides with the workpiece to be processed, nodes of the workpiece model to be processed are dynamically deleted and updated, the real-time material removing effect of the workpiece to be processed is realized, whether the processing program is finished is further judged, if not, the step (1) is carried out in a jumping manner, the three-coordinate value of the cutter is continuously received to drive the cutter to move, and if so, the processing is finished.
Preferably, in the process of executing the Boolean operation of the collision part by the cutting visualization module, the workpiece model to be processed is constructed based on the Octree's model building method of the model of the workpiece, and the data structure has high calculation efficiency and can better ensure the real-time monitoring of the cutting process.
The main characteristics of the scheme are as follows:
the real-time simulation visualization method for cutting machining based on the illusion engine can acquire dynamic data of a physical machine tool in real time in a virtual system, drive the virtual machine tool to remove workpiece materials to be machined in real time, well achieve real-time visual monitoring effect of the machining process of the numerical control machine tool, and improve informatization level of numerical control machining.
(III) beneficial effects
At present, the geometric simulation of the cutting process of the numerical control machine tool is mainly offline simulation, real-time interaction with the numerical control machine tool is not performed, online monitoring is mainly video monitoring, data is single, the latest research direction is focused on the real-time simulation visual monitoring of the cutting process, but most numerical control simulation systems are rough in modeling, not careful and visual in simulation of the machining process, and weak in immersion. The real-time simulation visualization method for cutting machining based on the illusion engine can acquire dynamic data of a physical machine tool in real time in a virtual system, drive the virtual machine tool to remove workpiece materials to be machined in real time, truly, efficiently and finely present real-time visual monitoring effects of the machining process of the numerical control machine tool, and assist in intelligent manufacturing and machining.
Drawings
FIG. 1 is a technical roadmap of the method of the invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present invention provides a technical solution: the method comprises a physical modeling module, a data acquisition module and a cutting visualization module, wherein the physical modeling module is used for establishing mapping between a virtual machine tool and a real physical machine tool, the data acquisition module is used for data communication between the physical machine tool and the virtual machine tool, and the cutting visualization module is used for displaying the real-time removal effect of materials.
Further, the physical machine tool and the virtual machine tool in the physical modeling module are generalized machine tools, and comprise a clamp, a cutter and a workpiece to be processed besides the machine tool body.
Further, the virtual machine tool mapping the real physical machine tool in the physical modeling module models according to the proportion of 1:1, and the building steps comprise:
(1) Drawing a machine tool structure and characteristics thereof by using three-dimensional modeling software UG, and storing the machine tool structure and the characteristics thereof in a STEP format;
(2) Reading the UG model by using 3D Max, rendering and mapping to enable the three-dimensional model to be completely consistent with the characteristics of the physical space, and deriving an FBX format;
(3) And reading the 3D Max model by using the illusion engine, and establishing a corresponding father-son relationship for the model according to the real association relationship of the machine tool parts, thereby completing the construction of the virtual machine tool.
Furthermore, the data communication of the data acquisition module is completed based on an open platform communication unified architecture OPC UA, and the communicated data is three coordinate values of the cutter.
Further, the implementation steps of the cutting visualization module include:
(1) The virtual machine receives three coordinate values of a cutter transmitted in real time by an open platform communication unified architecture OPC UA, and drives the cutter in the virtual machine to move;
(2) Judging whether the moving tool collides with the workpiece to be processed or not through the collision body attribute of the tool and the workpiece to be processed in the virtual machine tool, if not, jumping to execute the step (1), continuously receiving three coordinate values of the tool to drive the tool to move, and if so, executing the step (3);
(3) And (3) a cutter in the virtual machine tool collides with the workpiece to be processed, boolean operation is carried out on the part of the workpiece to be processed, which collides with the workpiece to be processed, nodes of the workpiece model to be processed are dynamically deleted and updated, the real-time material removing effect of the workpiece to be processed is realized, whether the processing program is finished is further judged, if not, the step (1) is carried out in a jumping manner, the three-coordinate value of the cutter is continuously received to drive the cutter to move, and if so, the processing is finished.
Furthermore, in the process of executing the Boolean operation of the collision part by the cutting visualization module, the workpiece model to be processed is constructed based on the Octree's model building method of the Voxel, and the data structure has high calculation efficiency and can better ensure the real-time monitoring of the cutting processing process.
The technical scheme includes that the working flow of the invention is as follows: firstly, establishing a virtual machine tool in a illusion engine through three-dimensional modeling, map rendering and assembly constraint of the physical machine tool, and realizing mapping of the physical machine tool; then, based on an open platform communication unified architecture OPC UA, the virtual machine dynamically receives three coordinate values of a cutter which are transmitted in real time, and then drives the cutter in the virtual machine to move; then, judging whether the moving cutter collides with the workpiece to be processed or not through the collision body attribute of the cutter and the workpiece to be processed in the virtual machine tool, if so, executing Boolean operation on the part where the workpiece to be processed collides, dynamically deleting and updating the nodes of the workpiece model to be processed, and realizing the real-time material removal effect of the workpiece to be processed until the processing is completed.
The cutting processing real-time simulation visualization method is a specific embodiment of the invention, has shown the substantial characteristics and the progress of the invention, and can be used for carrying out equivalent modification on the aspects of modeling tool selection, data communication protocol selection and the like according to the practical use requirement under the teaching of the invention, and the equivalent modification is within the protection scope of the scheme.
Claims (6)
1. The cutting real-time simulation visualization method based on the illusion engine is characterized by comprising a physical modeling module, a data acquisition module and a cutting visualization module, wherein the physical modeling module is used for establishing mapping between a virtual machine tool and a real physical machine tool, the data acquisition module is used for data communication between the physical machine tool and the virtual machine tool, and the cutting visualization module is used for displaying the real-time removal effect of materials.
2. The real-time simulation visualization method of cutting machining based on the illusion engine according to claim 1, wherein the physical machine tool and the virtual machine tool in the physical modeling module are generalized machine tools, and comprise a fixture, a cutter and a workpiece to be machined in addition to a machine tool body.
3. The real-time simulation visualization method of cutting machining based on a illusion engine according to claim 1, wherein the virtual machine tool of the real physical machine tool is mapped in the physical modeling module, and modeling is performed according to a ratio of 1:1, and the establishing step comprises:
(1) Drawing a machine tool structure and characteristics thereof by using three-dimensional modeling software UG, and storing the machine tool structure and the characteristics thereof in a STEP format;
(2) Reading the UG model by using 3D Max, rendering and mapping to enable the three-dimensional model to be completely consistent with the characteristics of the physical space, and deriving an FBX format;
(3) And reading the 3D Max model by using the illusion engine, and establishing a corresponding father-son relationship for the model according to the real association relationship of the machine tool parts, thereby completing the construction of the virtual machine tool.
4. The method for real-time simulation visualization of machining based on a phantom engine according to claim 1, wherein the data communication of the data acquisition module is completed based on an open platform communication unified architecture OPC UA, and the communicated data is three coordinate values of a tool.
5. The real-time simulation visualization method of cutting machining based on a illusion engine according to claim 1, wherein the step of implementing the cutting visualization module comprises:
(1) The virtual machine receives three coordinate values of a cutter transmitted in real time by an open platform communication unified architecture OPC UA, and drives the cutter in the virtual machine to move;
(2) Judging whether the moving tool collides with the workpiece to be processed or not through the collision body attribute of the tool and the workpiece to be processed in the virtual machine tool, if not, jumping to execute the step (1), continuously receiving three coordinate values of the tool to drive the tool to move, and if so, executing the step (3);
(3) And (3) a cutter in the virtual machine tool collides with the workpiece to be processed, boolean operation is carried out on the part of the workpiece to be processed, which collides with the workpiece to be processed, nodes of the workpiece model to be processed are dynamically deleted and updated, the real-time material removing effect of the workpiece to be processed is realized, whether the processing program is finished is further judged, if not, the step (1) is carried out in a jumping manner, the three-coordinate value of the cutter is continuously received to drive the cutter to move, and if so, the processing is finished.
6. The method of claim 1, wherein the cutting visualization module performs a Boolean operation of the collision region, the workpiece model to be processed is constructed based on the Octree's Voxel modeling method, and the data structure has high calculation efficiency and can better ensure the real-time monitoring of the cutting process.
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| CN202310777111.2A CN116796464A (en) | 2023-06-29 | 2023-06-29 | Cutting machining real-time simulation visualization method based on illusion engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117742540A (en) * | 2024-02-20 | 2024-03-22 | 成都流体动力创新中心 | Virtual-real interaction system based on virtual engine and semi-physical simulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117742540A (en) * | 2024-02-20 | 2024-03-22 | 成都流体动力创新中心 | Virtual-real interaction system based on virtual engine and semi-physical simulation |
| CN117742540B (en) * | 2024-02-20 | 2024-05-10 | 成都流体动力创新中心 | Virtual-real interaction system based on virtual engine and semi-physical simulation |
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