The machine tools, known as “industrial mother machine” and “heart of modern industry”, constitute the foundation of the manufacturing industry and a key area for high-end breakthroughs in the manufacturing industry, In particular for the automotive industry, rail transport, electronic information equipment, naval construction and aerospace and other areas of manufacturing high -end equipment provide significant support. The technical level of high-end CNC machine tools is one of the standards to measure the main manufacturing capacities of a country.
History of machine tool development
The machine tools refer to machines that make machines. Machine-tools play an irreplaceable and important role in the modernization of the national economy.
The machine tools took shape at the beginning of the 15th century. They were initially used to make clocks and weapons. Thread towers and gears machines have appeared, as well as rale with water barrel. “Tiangong Kaiwu” published under the China Ming dynasty also contains the structure of a crusher, which uses pedals to run an iron plate and add sand and water to cut the jade.
The industrial revolution has triggered the creation and improvement of various types of machine tools, including gantry planes, horizontal strawberries, cylindrical grinders, stormy gaunts and thread holders.
From the end of the 19th century to the beginning of the 20th century, a single tour has gradually evolved towards milling machines, planes, grinders, drills, etc. These large machine tools were essentially finalized, which created the conditions for mechanization and semi-user. Automation of production at the beginning of the 20th century.
During the 30 years which followed 1920, mechanical manufacturing technology entered a semi-automatic period and hydraulic and electric components have been gradually applied to machine tools and other machines.
In 1950, the development of machine tools began to enter the automation period. In 1951, the first CNC machine-tool appeared.
Digital control machine tools
The CNC machine-tool is the abbreviation of a computer-controlled machine-control tool. It is an automated machine-tool equipped with a program control system. The control system can logically deal with programs with control codes or other symbolic instructions, decode them, express them with coded numbers and enter them in the digital control device via the information support. After the calculation and treatment, the CNC device sends various control signals to control the movement of the machine tool and automatically treat the parts according to the shape and size required by the drawing.
CNC machine tools mainly include the following parts：
Body of the machine tool: The body of the machine tool is the main component and the important mechanical accessory of the tool-tool. This is the easiest part to see with the naked eye. As a machine-tool material, it also includes the molded parts of the building and the base. , pin and gearbox, guidance rails and slides, lubrication parts, chip evacuation and cooling.
Transmission system: The transmission system is an important “context” of CNC machine tools. He guides the ordered progression of all parts of the machine tool and completes the work mission of the tool-machine, including cutting tools, transmission machines and auxiliary power systems.
Tool part: including a protection device, a tool store and a tool change device;
Transmission machines: including ball screws, linear guide and endless screw;
Auxiliary power supply system: It includes two parts: the hydraulic system and the start-up system, which also constitute the power of CNC machine tools.
CNC system: The CNC system can be considered the soul of the CNC machine-tool. It is also the most emotional part of the whole machine-tool. It is the essence of the accomplishment of the various functions and operations of the machine tool. CNC systems are essentially divided into two categories:
Training device: it includes a high -speed pin, a torque engine, a linear engine, an ordinary engine and a step -by -step engine;
Control and detection devices: including the CNC system, the programmable automaton, the supply servocian module, the position detection module, etc.
CNC machine tools can better solve problems for processing complex, precise parts, in small lots and multi-variety. These are flexible and high performance automated machine tools represent the development management of modern machine-tool control technology and are a typical electromechanics. Integration of chemicals.
CNC machine tools are one of the 16 main national scientific and technological projects in my country.
High-end CNC machine tools
High-end CNC machine tools have speed, precision, intelligence, composite, multi-axis, network communication and other functions. Their development symbolizes the fact that the current manufacturing industry of machine tools in the country represents the advanced stage of global development. machine tool industry. Multi-axis link technology is one of the basic technologies of high-end CNC machine tools. The multi-axis bond means that all the power axes of a CNC machine (including linear coordinate coordinates and supply axes with rotary coordinates) move simultaneously according to program instructions under control of the CNC system. High-end CNC machines-tools generally have connection control functions at 3 or more axes, mainly a 4-axis link or a 5-axis link.
Internationally, high-end machine tool technologies such as CNC machine-touches with five-axes are considered an important symbol of the industrialization of a country. CNC to five-axis CNC machine tools refer to machine tools specially used for the treatment of complex curved surfaces. They have the advantages of a wide range of applications, high work efficiency, improved treatment accuracy and increased lifespan. With the rapid development of the cutting-edge manufacturing industry, CNC machine tools with five-axes, as an important symbol of the country’s level of industrialization, have acquired large development prospects.
There are many types of CNC machine tools with five-axes. Depending on different styles, five-axis CNC-to-liaison machine tools can be divided into swivel vertical double spindle and double horizontal spindle heads depending on different structures, CNC machine tools with five-axes can be divided into shapes double turntable; Pivoting forms in a turn, tilted type head type, type of sharpened type workbench, etc. Currently, CNC machine tools with double-headed swivel with vertical spindle and five-axis connections are the main products on the market. In 2021, the global turnover of CNC machine tools with double-headed vertical spindle and liaison with five axes will reach 4.41 billion US dollars. For almost 60 % of the global CNC machine tool market.
CNC-to-five-axes CNC machine tools are widely used in the military industry, precision equipment, aerospace, urban rail transport, new energy and health care vehicles, etc. The area of aerospace represents the largest request for CNC machine tools at five axes, representing 40.0 % of demand. CNC-to-five-axes CNC machine tools can treat darling discs, blades, wheels and structural parts of large, medium and small aircraft, and play an irreplaceable role in the aerospace field.
The development of CNC machine tools in my country
Since the implementation of my country’s CNC machine-tool project in 2009, a number of major innovative results have been obtained. More specifically, in terms of industrial system, the whole industrial chain, from host machines, functional components to CNC systems, was able to produce. A full range of products with various specifications. However, the bases of our country in the field of high-end CNC machine tools are low and certain basic technologies are not yet controlled, which has become a problem of “stuck neck” which seriously restricts the progress of our country towards a “manufacturing power”. .
Currently, foreign brands dominate the high-end CNC machine tool market in China. Yamazaki Mazak Corporation of Japan, DMG Mori of Germany, Grob-Werke of Germany and Hermle of Germany are suppliers of CNC machine tools with a world renowned five-axes, occupying nearly 60.0 % of global market. The companies mentioned above all have bases in the production of CNC machine tools with five axes in my country, occupying monopoly positions in the industry.
In fierce market competition, local CNC machine tools to five areas in China also constantly increase their investments in research and technological development. The main national companies of CNC machine tools such as Shenyang Machine Tool, Dalian Kede CNC, Shanghai Rijin Machine Tool and Huazhong CNC have gradually mastered the technology of CNC machine with universal liaison with five high-end axes, thus promoting location More high-end CNC machine tools. On the CNC machine tool market in my country.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
