From the point of view of technological evolution, the efficiency of CNC vowin.cn/en/News/news1251.html' target='_blank'>machining and manufacturing needs to be further improved, and the comprehensive use of digital technology is the only direction at present. The development of digital technology focuses on in-depth virtual and simulation.
As one of the industrial applications of digital technology, CNC machining has always focused on the improvement of the precision and accuracy of material processing, as well as the improvement of the operating process, so that the most production processes can be completed in one machine, thereby improving the overall production efficiency and improve costs.
However, with the continuous evolution of digital technology, the improvement of processing quality is no longer the only development goal. Now it is necessary to look further, even before production, that is, at the design end. How to do it? How to achieve it? The key is the digital avatar.
And the digital clone application is entering its rapid growth and will be rapidly deployed in various fields led by industrial manufacturing. Market research firm ResearchAndMarkets predicts that by 2030, the global digital avatar market is expected to reach US$155.8394 billion, with a compound annual growth rate of 39.1% from 2022 to 2030. Mainly used in the development and deployment of manufacturing, aerospace and automotive fields, and invested in design, component simulation and twin systems.
Contemporary Developments and Mainstream Technologies of CNC
However, to know the relationship between digital avatars and CNC machining, it is necessary to understand the basic technical principles of CNC and the current mainstream development.
CNC is the abbreviation of “Computerized Numerical Control”, which is digital control technology. It automatically controls mechanical equipment and processing processes through the digital instructions of the computer. Its appearance replaces the manual control method.
Generally familiar CNC machine tools mainly have XYZ three linear coordinate axes, and multi-axis means that a machine tool has at least a fourth axis. Commonly called multi-axis CNC machining refers to more than four axes, of which five axes are representative.
The application of CNC digital control technology includes intelligent monitoring and online inspection of machines and tools, or through the use of more sensors to enhance processing quality and operational safety, provide accurate and high-precision construction data, and inspect machines at the same time The life of its own parts can achieve the goal of pre-diagnosis and maintenance, and then optimize the plant utilization rate and overall production capacity.
In addition, through the advanced digital controller and precise motor and screw performance, the CNC numerical control system and machine have a higher degree of processing production capacity, so as to achieve more axes and multi-faceted manufacturing possibilities, thereby achieving high speed and high precision. cutting and machining production. Visual processing preview and automated intelligent feedback are also important auxiliary items.
With the mature development of CNC technology, driven by the trend of Industry 4.0 and digital clones, the traditional CNC system can also operate flexibly in gear/screw processing. Including domestic and foreign OEM equipment manufacturers such as machine tools, they have also formed alliances with European major manufacturers Siemens and NUM to develop customized human-machine interface and simulation software to support gear/thread grinding professional processing machines, increase energy efficiency or digital transformation needs.
In order to meet the multi-axis application requirements of high-end precision manufacturing, turn-milling or five-axis machining, in the past, more complex surface processing had to rely on continuous trial-and-error development processes. Today, anti-collision detection can be achieved through the development of software technology, and this is also the focus of the future integration of virtual and real systems.
Digital clone and CNC machining
Digital twins can also be called digital twins and digital twins. By collecting historical and real-time data, as reality, various parameters including people, commodities, processes, systems, machines or production equipment are transferred to digital platforms. A complete model, the model covers many aspects and variables, the variables interact with each other, and the various changes that will occur are rehearsed.
The application of the digital clone includes judging the failure of the robot arm through sensor data, and using the interactive human-machine interface for diagnosis and adjustment; and in the human-machine cooperation of the warehouse AGV, it can simulate the entire logistics, process, scheduling, picking Material type, moving line, human-machine collaboration, and dynamic adjustment of logistics resources to meet the needs of small and diverse customized orders.
In CNC machining applications, the process can be simulated through digital clones before machining, or the predictive diagnostic system can allow the industry to predict the health status of the machine and know when to repair or replace parts, which can improve the equipment utilization rate and properly Plan production schedules.
Therefore, in addition to the simulation model at its core, the connection with the real model needs to be quantified, and the basis of its quantification can be used as an intelligent application or even to establish an emerging business model. European machine tool factories are also introducing digital clone technology in the product production process to activate and accelerate the production process in the machinery industry and provide more business models.
Taking Taiwan’s Dongtai Precision Machinery as an example, the company has launched a digital clone application for its TD series turn-milling machine. Reduce the burden on the digital execution system.
Another manufacturer, Taiwan Limeng (NUM), has also released a digital clone technology for CNC machine tools, which can conduct design analysis, testing and performance improvement before development, reduce machine tool development time and costs, and enable manufacturers to significantly shorten time-to-market.
SIEMENS, the leader in digital avatar technology, has also launched a new generation of digital native CNC controller SINUMERIK ONE, which can connect digital avatar systems and physical products in series, allowing machinery and equipment manufacturers to shorten the adjustment time by using digital simulation. , for faster machine development, or testing parts in a virtual environment to improve performance.