Servo motor performance affects the performance of CNC automation system
In recent years, Chinese from manufacturing power forward manufacturing power development, because of the national attention to the manufacturing equipment and technology renovation work, with full digital AC permanent magnet servo system performance price ratio and gradually improve, control of motor types of high-grade precision components as AC servo motor, its market demand will grow steadily. As an important part of NC and automation system, servo motor performance directly affects the performance of NC system. While most of the servo motor used in domestic production enterprises of CNC system from well-known foreign enterprises.
Servo motor is an important part of CNC system, AC servo system has been in a wide range of replaced the DC servo system, at the same time, the software control also gradually replaced hardware control, become the development trend of servo technology. At present, domestic production enterprises still need to import most of CNC system, servo motor, servo system undertakes feedback signal task, performance directly determines the overall quality of CNC system.
As for the current situation of domestic NC system using motor, if the industry features do not form a scale of development, CNC product reliability, price and quality will not improve machine tool. At present, also introduced the relevant policies, emphasizes the market demand as the guidance, taking CNC terminal products, led the development of NC industry in the whole, and focus on solving the reliability and production scale of CNC system and functional components. Therefore, the servo motor as an important part of NC system, its development is bound to be further. In the aspect of technology, the proportion of linear motor drive for will be more and more, so the linear motor drive applications in high speed, the Gao Jing machine has entered a period of accelerated growth.
Before 1990, because of cost and other reasons, the domestic servo motor with permanent magnet DC brush motor and stepper motor, but mainly concentrated in the machine tool and the national defense industry. After 1990, the import of permanent magnet AC servo system has gradually entered the China, during this period, to benefit the development of rare earth permanent magnetic materials, power electronics and microelectronics technology change rapidly progress, driving technology of AC servo motor is also very quickly from the analog to digital transition.
Due to the driving device of AC servo motor adopts the advanced digital control technology, the hardware has the advantages of simple structure, convenient parameter adjustment, increase the consistency and reliability of the product production, at the same time, motor control algorithm and intelligent control functions integrated complex, such as automatic gain adjustment, the network communication function, greatly extends the application field of AC servo motor; along with other industries, such as machine tools, printing equipment, packaging equipment, textile equipment, laser processing equipment, robots, automated production lines, continuously improve the process accuracy, processing efficiency and working reliability requirements, demand for AC servo motor in these areas will increase rapidly, AC servo system will gradually replace the existing DC servo motor.
Due to the driving device of AC servo motor adopts the advanced digital control technology, the hardware has the advantages of simple structure, convenient parameter adjustment, increase the consistency and reliability of the product production, at the same time, motor control algorithm and intelligent control functions integrated complex, such as automatic gain adjustment, the network communication function, greatly extends the application field of AC servo motor; along with other industries, such as machine tools, printing equipment, packaging equipment, textile equipment, laser processing equipment, robots, automated production lines, continuously improve the process accuracy, processing efficiency and working reliability requirements, demand for AC servo motor in these areas will increase rapidly, AC servo system will gradually replace the existing DC servo motor. Dedicated servo motor market demand can not be ignored According to the Asian manufacturing Champions League director Luo Baihui, domestic AC servo motor and digital servo driver basically developed, but industrialization lag behind, has not formed the commercialization and production capacity, the domestic demand for precision AC servo motor control system is mainly dependent on imports, such as Japan, Mitsubishi Panasonic, Fuji and Germany Siemens, PHYRON etc..
According to the Asian manufacturing Champions League director Luo Baihui, domestic AC servo motor and digital servo driver basically developed, but industrialization lag behind, has not formed the commercialization and production capacity, the domestic demand for precision AC servo motor control system is mainly dependent on imports, such as Japan, Mitsubishi Panasonic, Fuji and Germany Siemens, PHYRON etc..
Therefore, the servo motor manufacturers abroad have planned or already set owned factories in China, the use of local resources and cheap labor, universal servo motor products, production of various specifications of. Design of domestic production technology of servo motor is perfect, at present mainly toward standardization, seriation, scale development, only a certain size to have high reliability and low price and competitive products.
Design of domestic production technology of servo motor is perfect, at present mainly toward standardization, seriation, scale development, only a certain size to have high reliability and low price and competitive products. But the full digital servo motor drive technology in China is relatively backward, mainly confined to the lack of practical digital motor control algorithm and the power module and high reliability, this greatly limits the popularization of domestic servo motor.