Linear motor, also known as linear motor, is a kind of mechanical equipment commonly used in manufacturing enterprises in various fields. If it is installed on production equipment, it can provide high-speed automatic linear motion for the production line of enterprises. Linear motors have gone through quite a long period of development. This situation did not change until the mid-1950s, because during this period, material technology and control technology were developed and a large number of new control components emerged, which greatly promoted the theory and application of linear motors.
Linear motor uses electric energy to directly generate linear motion, and its principle is similar to that of the corresponding rotary motor. In structure, it can be regarded as the evolution of the corresponding rotary motor along the radial incision, straightening. With the development of automation technology, the feed system of precision and high speed machine tools has effectively reflected the remarkable performance of linear motor, and the research of linear motor has become a hot spot in the research field.
Linear motor is the irregular structure of rotary motor strictly. It can be thought of as a rotating motor cut along its radial direction, the difference between the two lies in the linear variation. With the emergence of automatic control technology and microcomputer, the traditional motor structure system has been far from meeting the requirements of users, what is the future trend of high-quality linear motor?
The development trend of linear motor
1, the technology is becoming more mature
The linear motor matching drive control technology in machine tools has become more and more mature, which has the barrier that traditional devices cannot overcome. With the continuous improvement of motor manufacturing technology, the selection of matching linear motor and drive control system, with reasonable machine composition, can completely produce high performance, high reliability of machine tools. High-speed linear motor drives have been widely used in machining centers, CNC milling machines, lathes, grinders, compound processing machines, laser processing machines and heavy-duty machine tools.
2, the cost is gradually reduced
The cost of linear motor systems continues to bottom out, and the proportion of machine tool costs drops dramatically. But the current use of linear motor drive is still higher than the traditional transmission price. Therefore, the application of linear motor is still focused on high performance machine tools, especially precision high-speed machining machine tools, special machining machine tools, large machine tools to solve the problem that the traditional transmission mode can not be excluded.
3, Technology tends to be industrialized
The application of linear motor in machine tools is no longer a sample. According to relevant statistics, in recent years, although countries have strengthened the scale structure of production, but still can not meet the huge demand of the market, has a strong market potential, in the next few decades, the world will have one-third of the CNC machine tools using linear motor feed drive, the use of high-end machine tools is undoubtedly the largest proportion, its industrialization prospect is self-evident.
So far, linear motor module platform has been widely used in a variety of equipment. At present, it has been widely used in measurement, laser welding, laser cutting, glue coating machine, spraying machine, punching machine, dispensing machine, small CNC machine tools, carving and milling machine, sample plotter, cutting bed, load shifting machine, sorting machine, testing machine and applicable education and other places.
The old motor structure and drive mode combination has been far from keeping up with the pace of modern control system, linear motor is more favored by modern production mode, linear motor technology research is becoming more mature, resulting in a pivotal position in various fields.