Question

Is laser cutting machine driven by stepper motor? Laser cutting machine, knife mold machine, two-phase hybrid stepper motor driver, can?

Answer 1

The driving method of laser cutting machine is mainly driven by motor, and some customers face a choice when customizing fiber laser cutting machine, whether to choose a servo motor or a stepper motor? Han's Super can analyze the difference between these two different driving methods for you.

Laser cutting machine selection servo motor and stepper motor difference

Servo motor and stepper motor can be used for the drive of laser cutting machine, many companies buy laser cutting machine when buying the former, why? 

The servo motor runs with low noise and high precision. Using AC servo motor as the driving device, it can form a high-precision, high-performance semi-closed-loop or closed-loop control system like DC servo motor. Because the AC servo motor is brushless structure, almost no maintenance is required, and the volume is relatively small, which is conducive to the improvement of speed and power. 

At present, DC servo motors have been replaced on a large scale. After the emergence of the all-digital AC servo system using high-speed microprocessor and special digital signal processor (DSP), the original hardware servo control became software servo control, and some advanced algorithms in modern control theory were realized, which greatly improved the performance of the servo system, so the servo unit can greatly improve the processing efficiency and processing accuracy, but the price of the servo drive unit is also higher. With the gradual improvement of servo control technology, the servo drive unit is gradually becoming the main force of the drive unit, and the price of the servo drive unit is gradually decreasing.

There are two types of servo drives. One adopts pulse control method, the drive is closed to the motor but does not feed back to the numerical control system, this drive can be called open-loop control servo control to some extent. 

The other adopts voltage control method, which controls the speed of the motor through the level of voltage, and the feedback signal of the motor is fed back to the numerical control system through the driver for position control.

When selecting a drive unit, it is also necessary to consider the proportion of the price of the drive unit in the entire CNC machine. The lower price of the whole CNC machine tool generally chooses the step drive unit, while the higher price machine tool chooses the servo drive unit. However, while choosing the drive unit, we must also consider the matching problem between the drive unit and the numerical control system, and the closed-loop servo drive unit must be selected when selecting the closed-loop control system. 

AC servo systems outperform stepper motors in many performance aspects.

Answer 2

The future application market of domestic fiber laser cutting machine

With the vigorous development of economy and science and technology, the improvement of people's cultural quality and the improvement of living conditions, in addition to the strong support of the state, the state gradually attaches importance to metal processing, and more and more laser cutting machines gradually replace the traditional processing methods.

stepper motor - nema 23 stepper motor manufacturers

Although after continuous efforts, China's laser cutting equipment industry has achieved great development, but more than 70% of China's fiber laser cutting machine is imported equipment, especially for the fiber laser cutting machine urgently needed by the precision manufacturing industry, laser generator is a key factor to determine the performance, function, processing speed and cost of laser cutting machine, and foreign countries still block restrictions on our country, becoming a bottleneck restricting the development of domestic fiber laser cutting machine.

Fiber laser cutting machine is now the third generation of laser cutting equipment, in the next 20 years of development, will still occupy the dominant position of sheet metal processing, from the perspective of sheet metal processing industry development, to solve the processing efficiency and cutting accuracy is the future development direction of sheet metal processing. At present, the domestic fiber laser cutting machine market is huge, and the application of new technologies to transform traditional industries can not only improve product quality but also rapidly develop emerging industries. Therefore, the future market development prospects of China's fiber laser cutting machine are considerable.