With the agile development of scientific skills and social consumption, mechanical products are becoming more and more complicated and demand for mechanical products and consumption rate increases and increases. Among the industries such as aerospace, the military industry and the ingredients, the precision of the parts is high, the appearance is complicated, the lot is low, the normal correction, the treatment is difficult, the efficiency of consumption consumption is low, the rest force is high, and the quality is difficult to ensure.
The mechanical treatment technology process is the most important wrist with intelligent adaptation to the characteristics mentioned above. In order to cope with the above problems, active “flexible”, general, general, high-efficiency “flexible” consumption equipment is emerged in this case. At present, CNC techniques have gradually passed and CNC machine tools have been widely used in industrial consumption and have become an important direction for the active development of machine tools.
1. CNC
1) The meaning of CNC:
NumericalControl is the abbreviation of the digital order.
CNC essence is to actively control mechanical installation measures by digital information under a specific processing method (the number of modifications on the continent). Due to the understanding of information in CNC, the processing of these SMS is inseparable from the calculation machine, it will therefore be called CNC by the reduction machine. The CNC mentioned here refers to CNC (that is, Machine Tool CNC) in the treatment of machine tools. In addition, the CNC is generally used in the fields of measurement, physical and chemical experiences and analysis, transmission, construction and scientific governance of materials and information.
2) CNC classification:
The NC installation of late CNC machines consists of a random logical circuit made up of various logical elements and memory elements.
Computerumericalcontrol, called CNC. The modern CNC system is a CNC system that adopts a dedicated microprocessor or microcomputer. equipment via the interface.
2. Machine Tool CNC and CNC Machine Tool
1) CNC machine
Machine-tool that CNC refers to the preparation of tasks through processing sequences and records them in the information medium of a digital signal. The machine tool can be treated. Its masterpiece is specifically treated for machine tools and machine tools.
2) CNC machine
CNC machines-tools are a new treatment equipment for electromechanical integrated electromechanics which has actively processed by digital information to carry out active mechanical and electric integration.
CNC machines are the products of digital control skills and machine tools. Machine-tools well.
The digital control rate of the machine-tool in a country reflects the level of the country’s machine tool industry and mechanical functioning, and it is also one of the important brands to weigh scientific and technological progress national. It is of great importance to reach the process of active consumption and to hastily penetrate scientific and technological progress and the establishment of the modernization of deceleration. The prosperity of the country’s visual control skills is the strategic objective of the mechanical industry, and it is vigorously promoted and carried out CNC machine tools.
3. Use of CNC machine tools
Characteristics of CNC machine tools:
Compared to traditional machine tools, the machine tool has the following characteristics.
1) a very flexible
The machining parts on CNC machines depend on the treatment sequence. Consequently, CNC machine tools are practical where the treatment parts are treated frequently, that is to say the appropriate unique parts, the consumption of small products and the development of new products, Thus extending the consumption preparation cycle, and the cost of a small amount of craft equipment is frugal.
2) High treatment accuracy
The treatment of treatment of CNC machines can reach 0.05-0.1 mm. The machine tool enters the tool-tool to enter the uniform error of the opposite space between the transmission chain and the distance snail distance can be made up of the installation of CNC.
3) The quality of the treatment is stable and reliable
The same batch of documents is treated. .
4) High consumption rate
CNC machines can effectively increase processing time and auxiliary time of parts. . CNC machines are currently entering the high -level treatment period. In addition, with the use of the processing library of the treatment center, it can be treated continuously by several processes on a machine-tool today, increasing the rolling time between semi-finished products and improving the rate consumption.
5) Improvement of rest conditions
Before the treatment of the CNC machine is good, the output order and the start of the command, and the machine can actively continue the treatment until the end of the treatment. All operators must only make the output, compilation, loading parts and unloading, preparation of tools, observation of the processing state and part of the parts. In addition, the tool-tool is united, which is clean and safe.
6) Use the modernization of consumer governance
Treatment of CNC machine tools can be precisely estimated afterwards, and the use of tools and lights used can be standardized, modernized and easy to carry out the standardization of processing information. CAD / CAM) of the plate calculation machine (CAD / CAM).
4. Development of CNC techniques
1) High speed
The CNC system adopts a microprocessor of more than 32 bits, so that the output, the decoding, the total, the output and other links of the CNC system can be implemented at high speeds.
Currently, the new CNC system of the 64-bit Center processing unit (CPU) is developing, which has strengthened the function of interpolation IT and the rapid progression function. Reach 3-6 axis at the same time.
2) Multi-function
The CNC system has a variety of monitoring, testing and compensation for functions. For example, detection of the wear of tools, the precision of the system and the detection of thermal change, etc., also have functions such as the treatment of the life of the knife, the bias of tool length, compensation From the knife radius, the tip of the knife to compensate and the distance wire. Most modern CNC machines adopt a CRT display. Using CRT, the keyboard can reach the control, compilation, correction and deletion output functions. The modern CNC system has the function of hardware, software and defects.
3) Intelligent
In the modern CNC system, adaptive masterpieces have been introduced. Adaptive control skills are techniques that can regulate the characteristics of the state of the task measured during the processing process, and can reach the cutting process and maintain the best status.
The intelligent development of the modern CNC system is currently important forms in the following aspects:
① The piece actively detects and takes the initiative.
② The knife is damaged and has actively changed the spare knife.
The life of the knife and the storage state of the tool.
④ Supervision of charges, data governance, culture and management.
⑤ Use comments to master the real makeup function for the vector.
⑥ On the basis of thermal deformation during treatment, the function of the expansion and narrowing of the pearl rods is made up in real time.
5. The composition of the CNC machine-tool
Modern CNC machines-tools are made up of control, output and output, control of the CNC unit, servomotor system and machine-machine body.
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.
