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The necessity of using voltage stabilizer for laser cutting machine

2020-08-24

Laser cutting is to focus the laser light emitted from the laser into a high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point, while the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material will finally form a slit, so as to achieve the purpose of cutting.

From the principle of the laser cutting machine, we know that the laser cutting machine will generate a large current when it is irradiated with the laser beam on the surface of the workpiece, and the temperature is very high, and the current will decrease instantly when the laser beam is not working. The voltage has a huge impact. If the grid voltage is unstable, the voltage will be high and sometimes low, which will affect the life, cutting quality and cutting speed of the main components of laser cutting. Therefore, the laser cutting machine needs to be equipped with a voltage stabilizer to protect The stability and reliability of equipment shipment.

Laser cutting equipment has high requirements for the power supply stability of the power supply system. For example, the laser cutting equipment of Japan SNK company is equipped with the CNC system of FANUC company. The power supply requirements are: three-phase AC 380 V ± 10%, 50/60HZ , And most of the laser cutting equipment is designed with overvoltage and undervoltage protection devices. Once the grid voltage is out of tolerance, the machine tool will automatically alarm and be in a protection state at the same time. The allowable deviation of the power supply voltage of China's power grid is ±10%, but in fact it often exceeds this standard, especially during peak power consumption periods, such as about an hour before or after work during the day and at night, often exceeding the tolerance, even reaching ±20 %. Make the machine tool alarm and fail to work normally and cause damage to the machine tool power system. It even leads to the loss of related parameter data. This phenomenon has occurred in laser cutting equipment, CNC machining centers or turning centers and other machine tools, and it occurs frequently and should be paid attention to.

The special voltage regulator for laser cutting equipment is independently developed by our factory and designed for stable AC power supply in consideration of national conditions. When the external power supply or load changes cause voltage fluctuations, it will automatically output a stable voltage.

Compared with other types of voltage stabilizers, the special voltage stabilizer for laser cutting equipment has the characteristics of large capacity, high efficiency, no waveform distortion, stable voltage adjustment, etc., and it is suitable for a wide range of loads, can withstand instantaneous overload, and can work continuously for a long time. The automatic control can be switched at will, with automatic protection devices such as overvoltage and overcurrent, as well as the characteristics of small size, light weight, convenient use and installation, and reliable operation.

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