Maintenance of laser machine


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1. Good grounding.


The laser power supply and the machine lathe bed must have good grounding

protection, and the earth wire should be applied to a special earth wire less than 4

ohms. Necessity lies in: (1) to ensure the normal operation of laser power, (2) to

extend the service life of laser tubes, (3) to prevent external interference caused by

machine tool runout, (4) to prevent accidental circuit damage caused by high voltage

discharge. Good grounding must be ensured.

2, The cooling water should be unblocked.

No matter use running water or circulating water pump, we must keep the water

flowing smoothly. Cooling water is to take away the heat generated by the laser tube,

the higher the water temperature, the lower the light output power (to 15-20 degrees

water temperature is preferred); when cutting off the water, the heat accumulated in

the laser cavity will lead to tube end burst, and even damage the laser power

supply. So it is necessary to check whether the cooling water is clear at any

time. When the pipe has a hard bend (dead bend) or fall off, lead the pump failure, it

must be repaired in time to avoid power decline or even damage the equipment.


3, Clean maintenance, good ventilation, wipe at any time.


Cleaning and maintenance of machine is a necessary condition for cooperation machine normally. Just imagine that people's joints are not flexible, and how do they walk? Similarly, the machine

guide rail is a high-precision core components, it must be cleaned and maintain smooth

lubrication after finishing each work. Each bearing must be regularly oiled, so as to make the

drive flexible, accurate processing, and extend the life of the machine.


4, Ambient temperature and humidity


The ambient temperature should be in the range of 5-35 °C. Special attention is: if it is used in the environment below freezing point, it must be done: (1) Prevent the circulating water in the laser tube from freezing, and the water must be completely discharged after the shutdown; (2) The laser power supply must be warmed up for 5 minutes when the machine is turned on. The above can work. In rainy and humid environments, the laser power supply needs to be warmed up for a longer period of time. It is really necessary to add high voltage after draining to prevent high voltage circuit breakdown.


5, Away from large power and strong vibration equipment

      Sudden high-power interference can sometimes cause machine malfunction, although it is rare, it should be avoided. Therefore, such as large electric welders, giant electric mixers and large-scale power transmission and transformation equipment, etc., should be far away. Strong vibration equipment is self-evident, such as forging presses, vibrations caused by walking of close-range motor vehicles, etc. The obvious jitter of the ground is very unfavorable for precise engraving.


6, Lightning protection attacks

      As long as the lightning protection measures of the building are reliable. The first section of this section, “Good Grounding” can also help to prevent lightning.

      Special recommendations:

      In areas where grid power is unstable (such as voltage fluctuations above 5%), please install a regulated power supply with a capacity of at least 3000W to prevent sudden voltage fluctuations from burning the circuit or computer.


7, Maintenance of the lens: After the machine is working for a period of time, the lens will adhere to the surface due to the working environment, which will reduce the reflectivity of the reflective lens and the transmittance of the lens, and ultimately affect the working power of the laser. Maintenance method: Gently wipe the lens surface in a clockwise direction with absorbent cotton and ethanol to remove dust.


Common laser problems and solutions


First, when the boot button is activated, but the laser cutting machine does not move. We could check following problems:


1. Check if the laser cutting machine is energized. If there is no power, please plug in the power supply first;


2, Check if the laser cutting machine motherboard parameters are correct, if not, please refer to the software instructions and modify the parameters;

Second. No laser in laser cutting machine when it works


Check whether the light path of laser cutting machine is offset or not. And and refer to the

optical path to adjust;


There is a problem in the circuit. At this point, the point ray along with the laser cutting

machine can be inserted into the signal terminal of the power supply to judge.


Third, the laser output Intermittently during work


Check whether the water circulation of the laser cutting machine is smooth. If not, please

 clean the water tank and the water pump and dredge the water pipe.

Check if the power supply voltage is stable at this time. If the voltage duration of the laser cutting machine is unstable, please add a voltage regulator to the power supply;


Fourth. Laser cutting machine can not process on-line data.


Check whether the communication data line of laser cutting machine is connected well. If

There is no connection, please shut down the machine and reconnect the data line. whether the software USB is installed successfully, if the display installation fails, please install

the software and USB driver again.

Fifth. The size of the processing does not correspond to the size of the software.


1, Install software, install original machine software, restore original parameters;


2, Through calculation, adjust each movement, through software calculation, re-input the set

size and the actual size of processing in the software;


Sixth, the control panel is not bright, the line is loose, check the motherboard to the panel loose connection.


Seventh, boot reset, collision limit.

Limit switch and signal issue, check software parameter setting and limit switch.


Eight, carving dislocation


1, Electrostatic interference, reconnect the ground wire, grounding two meters below;

2, Mechanical parts loose, check gear top wire, if belt is loose?

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