World CNC machining trends in 2021

24/08/2021
With the development of new CNC technology and the expansion of application fields, CNC machine plays an increasingly important role in the development of several core industries. Vietnam Outsourcing will share with you the CNC machining trends in 2021 and the future.
CNC technology not only brings revolutionary changes to the traditional manufacturing industry, making the manufacturing industry a symbol of industrialization but with the continuous development of CNC machining technology and open Wide range of application fields, it has made an important contribution to the development of several important industries of the national economy and people's livelihood.
 

Increasingly Important role

 
Although there has been a trend towards high accuracy and high-speed machining more than ten years ago, the development of science and technology is endless. The definition of high precision and high speed is always changing, and it is evolving towards the limit of accuracy and speed.
 
From the perspective of the development trend of CNC machining technology in the world, it mainly includes the following aspects:
 
The development of high-speed, precise, intelligent and miniaturized machines:
With the wide application of light alloy materials in industries such as automotive and aerospace, high-speed machining has become an important development trend of manufacturing technology.
 
metalworking cnc milling machine PYGVDLG
High-speed machining has the advantages of shortening machining time, improving machining accuracy and surface quality, and is increasingly widely used in mould making and other fields.
 
The high speed of the machine requires a new numerical control system, high-speed electric spindle and high-speed servo feeder, as well as optimization and weight reduction of the machine structure.
 
High-speed machining is not only the equipment itself but also the integration of machines, tools, tool holders, jigs and CNC programming technology, as well as the quality of personnel.
 
The ultimate goal of high speed is increased efficiency. Machine tools are just one of the keys to achieving high efficiency. It doesn't mean everything. Production efficiency and benefits are always on the “edge”.
 

The rapid development of five-axis coordinate machine tools and compound machines.

 
The five-axis coordinate CNC machine is used for machining three-dimensional curved surface parts, and the best geometry of the tool can be used for cutting, which not only has a high finish but also variously improves efficiency.
 
It is generally believed that the efficiency of a five-axis coordinate CNC machine can be equal to that of two three-axis coordinate CNC machines, especially when high-speed milling of hardened steel parts using cubic boron nitride and other superhard material cutting machines.
 
Axial-coordinate machining is comparable to a three-axis coordinate machine in terms of machining efficiency. However, in the past, due to the complicated master structure of the 5-axis CNC system, its cost is many times higher than that of the 3-axis coordinate machine.

metalworking cnc milling machine PBXX7QQ
 
CNC machine tools, and more difficult programming technology, have limited the development of five-axis coordinate machine tools.
 
The current development of CNC machining technology has greatly simplified the structure of composite spindle heads for simultaneous machining of five axes, greatly reducing the difficulty and cost of fabrication as well as reducing the distance of the composite spindle. prices of CNC systems.
 
As a result, five-axis coordinate machining technology has promoted the development of compound spindle-head five-axis coordinate machine tools and compound machining machine tools.
 

The development of new structures, new materials and new design methods.

 
The high speed and precision of machine tools require that the structure of the machine tool be simplified and lighter, to reduce the negative impact of the inertia of the machine tool parts on the machining accuracy. , and greatly improve the dynamic performance of the machine tool.
 
For example, optimizing the topology of machine tool components with the help of finite element analysis, designing a box-in-box structure, using a hollow welded structure, and using a composite material has begun to move from the laboratory to practical use.
 
CNC machine tool design and development should switch from 2D CAD to 3D CAD as soon as possible. Three-dimensional modelling and simulation are the foundation of modern design and the source of enterprise technological excellence.
 
Based on this three-dimensional design, CAD/CAM/CAE/PDM integration is realized to speed up the development of new products, ensure smooth commissioning of new products, and step-by-step implementation of management. product life cycle management.

engineer training apprentices on cnc machine PSTSTSL
 

The development of the coordinate CNC system.

Many countries have researched the CNC connection system, and the coordination of the CNC system has become the future of the CNC system.
 
The so-called coordinate CNC system is the development of a CNC system that can be directed to machine tool manufacturers and end-users on a unified operating platform, by changing, adding or cutting. structural objects (CNC functions), to form a sequence, and can easily Special applications and technical know-how are integrated into the control system to quickly realize CNC systems opening of different types and levels, forming famous brand products with distinct personalities.
 

There are three types of coordinate CNC systems:

 
A. Fully open system, that is, microcomputer-based numerical control system, using microcomputer as the foundation, using the real-time operating system, developing various functions of the system numerical control, data transmission via a servo card, and motion control of a coordinate axis motor
 
B. Embedded system, namely CNC + PC, CNC motor control of coordinate axis motor, PC as a man-machine interface and network communication
 
C. Combined system, add PC motherboard based on CNC, provide keyboard operation, improve man-machine interface function.
 
Architectural specification, communication specification, configuration specification, operating platform, CNC system function library and CNC system function software development tools of CNC system openness is the core of the present study.

cnc machine XJ2PLGV
 

Develop reconfigurable production systems.

As product upgrade rates accelerate, the reconfiguration of speciality machine tools and the ability to reorganize production systems becomes increasingly important.
 
Through the modularization of CNC machining units and functional components, production systems can be quickly reorganized and configured to meet the production needs of modified products.
 
Interface standardization and standardization of mechanical, electrical and electronic, fluid and gas, and control software are key to achieving reorganization.
 
cnc milling machine H6YJ76P

Virtual machine tool development and virtual production.

To accelerate the development and quality of new machine tools, with the help of virtual reality technology in the design phase, you can evaluate the correctness and performance of the machine tool design in advance. when machine tools are manufactured, and find various defects in the design process at an early stage to reduce losses, improve the quality of new machine tool development.
 

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