Practice of linear motor in high power laser cutting machine
In recent years, with the improvement of linear motor technology, it has been widely used in industrial, civil, military and other various linear motion applications. The direct drive of linear motors has higher dynamics and control accuracy, higher feed rates and accelerations, longer service life, and lower vibration noise and less wear than conventional transmissions. . These characteristics have led to the rapid development of applications in the field of CNC machine tools, and laser cutting as a non-cutting force processing, the use of linear motor feed drive has an unparalleled advantage.
First, the principle of linear motor Linear motor refers to a driving device that uses the principle of electromagnetic induction to convert electrical energy directly into linear motion kinetic energy. It is a motor that can realize reciprocating linear motion. The magnetic levitation train of the world's first commercial operation line, the Shanghai Maglev train, was implemented using this principle.
Linear motor principle
Second, the linear motor compared with the traditional rotary motor its application advantages 1. Fast speed, large acceleration; 2. High precision; 3. No mechanical wear, long life; 4. The transmission system is simple in structure and high in efficiency; 5. Low noise, Running quietly.
Comparison of linear motor and traditional rotary motor parameters:
Third, the application of linear motor in laser cutting machine On the one hand, with the development of technology, the performance of linear motor is continuously improved, the cost is decreasing, creating conditions for its wide application; on the other hand, the laser cutting machine application industry The sheet metal industry continues to place higher demands on cutting quality and cutting efficiency. To this end, linear motor driven laser cutting machines have emerged. Because of its high speed, high acceleration and high positioning accuracy, it is favored by high-end customers in the market.
The introduction of laser cutting machine has ended the history that China's high-power CNC laser cutting machine can only be imported from abroad. It also ends the history of China's independent research and development of low-end and high-power CNC laser cutting machines. The technical indicators of the G3015LS laser cutting machine are close to or reach the specifications of similar high-end machines of foreign manufacturers, and the price is only about one-half of them, which can save a large amount of equipment investment cost for the majority of manufacturers.
