Importance of Servo Motors
Servo motor is a very important part of laser cutting machine. Its quality determines the stability of equipment operation and the deformation of processing contour. If you want to make the equipment process according to the established graphics, the key lies in the dynamic responsiveness and coordination of each axis. No matter laser cut sheets or tubes. As an intermediate actuator that undertakes machinery and control systems, servo motor can compensate, optimize, and coordinate the actions of various systems. And the servo motor can accurately control the cutting speed and position accuracy of the laser CNC machines.
Relationship between Servo Motor & Laser Cutter
I. Servo Motor & CO2 Laser Cutter
The CO2 laser cutting machine is mainly driven by a motor and a belt or a ball screw. They work together to change the laser head position and then realize the nonmetal laser cutting. However, servo motors are not suitable for all kinds of CO2 laser cutting machines. According to the different transmission mode, the motor of the CO2 laser cutter various. So which CO2 laser cutting machine is the servo motor more suitable for?
1. Servo motor & Belt-driven CO2 laser cutter
When the belt is driven for a short distance, the laser cutter will have fast speed, high accuracy, and low noise. However, it is prone to jitter or occurs other machine problems when the transmission distance is long. In addition, the belt is easy to be out of shape, which will reduce the machine precision. Although it can also be matched with a servo motor, which will cause problems such as non-straight oblique lines and non-round circles. Because the servo motor has strong rigidity, it does not match the belt well. Moreover, it is not recommended to add a servo motor for laser engraving machines or laser scanning machines. The reason is that there will be ghost images when scanning. Besides, the debugging time is long and the cost will be high. In a word, its disadvantages outweigh the advantages.
Therefore, when choosing a belt-driven CO2 laser cutter, it is best to match a stepper motor. On the one hand, it has high precision, no jitter, and low cost. On the other hand, it is more convenient to install, maintain, and replace. Here, I’ll recommend you buy our 1390 CO2 laser cutting machine.
2. Servo motor & Ball screw-driven CO2 laser cutter
Compared with the rack and belt, the ball screw has the highest rigidity and is most suitable for servo motors. First, if the servo motor is matched with the ball screw, the short-distance transmission speed can be very high. Thus, it can greatly improve the processing efficiency and save you a lot of time. Second, there is no jitter during high-speed processing. Even when processing thin materials, it can o reduce jagged. Third, it can guarantee higher transmission accuracy even for laser cutting machines with a larger working table. Fourth, the ball screw and servo motor can also achieve laser cut and engrave both metal and non-metal materials.
Besides, it has a high processing precision, up to 0.02mm. And its positioning accuracy can reach ±0.05mm. In addition, it can smoothly process high-strength stainless steel plates. The processing size of the worktable is 1300*2500mm and it has a variety of cutting powers to choose from. In conclusion, it is a very popular laser cutting machine and very worthy to purchase.
II. Servo Motor & Fiber Laser Cutter
Fiber laser cutting machine requires higher precision and faster speed to achieve smooth cutting of product edges. Most of them are suitable for industries with high cutting requirements. Therefore, in order to ensure the stable operation and high-precision processing effect of fiber laser machines, servo motors are basically optional.
Fiber Laser Cutting Machine Engrave Patterns on Metal Sheet
Advantages of the servo motor
- 1. High accuracy: it realizes the closed-loop control of position, speed, and torque. Furthermore, it overcomes the out-of-step problem of the stepper motor.
- 2. Fast speed: with high-speed performance, its rotating speed can reach 2000-3000 rpm/min.
- 3. Strong adaptability: with strong anti-overload capability, it can bear the load of rated torque 3 times. It is especially suitable for the load that has large instantaneous fluctuations or needs to start quickly.
- 4. Good stability: it can run smoothly even at low speeds without the low-frequency vibration like stepper motors.
- 5. Excellent timeliness: the dynamic response time of motor acceleration and deceleration is short, generally within tens of milliseconds.
- 6. Great comfort: heat and noise are both significantly reduced.
Below I will recommend two fiber laser machines equipped with servo motors.
At the same time, it is designed with a large full protective cover, which not only ensures the safety of the operator, but also is more environmentally friendly. In addition, the upgraded ball screw and servo motor system reduce vibration during the cutting process, ensuring stable working, rapid cutting speed, and precise cutting accuracy.
Final Word
In summary, the servo motor has the characteristics of high precision, good stability, strong adaptability, short response time, etc. Therefore, it is very suitable for the ball screw-driven laser CNC machines, such as the upgraded 1390 CO2 laser cutting machine, 1325 CO2 laser engraving machine, and all kinds of fiber laser cutters.
