Common faults and solutions of laser cutting machine

Common faults and solutions of optical fiber laser cutting machine

The laser cutting machine has increasingly popularized the process of metal processing and manufacturing. Pay attention to maintenance during use. When problems occur, it will be much easier to master the following maintenance methods.

1. When working, a complete curve jumps a short distance without cutting, also known as light jumping?

This problem is generally caused by the looseness of the slider of the cart during long-term high-speed operation. It can be solved by readjusting the slider on both sides of the cart.

2. When working, some parts of the same version are cut continuously and some parts are cut off?

This kind of problem is generally caused by light deviation or uneven worktable, so it is necessary to adjust the light and level the worktable. Sometimes the light deflection is caused by the deformation of the guide rail, and it is necessary to adjust the guide rail.

3. When cutting, the two ends sometimes cut into each other and sometimes separate?

This problem is usually caused by the looseness of the fixing screws of the synchronous wheel or the problem of the motor wire. If there is a problem with the motor wire, the solution is to replace all the motor wires, not one or two separately.

4. Is the chiller prone to high temperature alarm in summer?

The problem is usually that the weather is too hot, the cooling capacity of the water chiller is not good or the cooling capacity is not enough. The self-made water chiller will not have the problem of insufficient cooling capacity. Generally, the radiator is too dirty, and the ventilation department is good, leading to an alarm. Generally, the cooling capacity of small water chillers is insufficient, so the temperature difference can be increased, and the alarm temperature can be appropriately raised to solve the problem.

5. When there is light, there is no light?

First, the switch on signal temperature is unstable, including the light output signal and the water chiller signal. Then, check whether the potentiometer has poor contact, and check whether the power supply is broken.

6. If the trolley does not return to the original point, it cannot move?

The problem is that the trolley motor is not powered on, and the laser head can be easily pushed by hand when the machine is started. The reason for the failure is that the 48V switching power supply is broken, or the self protection is broken. The machine can be turned off for ten minutes before being turned on. If it is not ready, replace the 48V switching power supply.

7. Cut for a few minutes, and the light from the laser tube will become very weak?

There are generally three possibilities for this problem. There is a problem with the power supply, the laser tube is broken, and the frequency of the laser tube in the software is not correct.

8. When the cart moves, it often shakes violently?

This problem is usually caused by the servo limit line or limit, which can be solved by changing the line or limit.

9. The two laser heads move randomly?

Generally, the board is broken and the given signal is incorrect.

10. Sometimes it is required that the two versions of graphics can be connected, but when they are cut out, they cannot be connected?

This problem is caused by the non parallelism between the feeding drive shaft and the aluminum tube of the trolley. The trolley cannot be adjusted. The only way to solve this problem is to adjust the feeding drive shaft.

11. Sawtooth cutting?

Unsealed slider is loose or broken, belt is loose, belt synchronous pulley is eccentric, curvature value is too large, corner speed is fast, and lens is not tight

12. The laser tube power is unstable, and the carving starts very well. After a few days, the carving depth varies

Unstable laser tube and power supply

13. No light,?

Water level switch leaks

14. Ignition of laser power supply?

The welding place is not well connected, the silicone is not coated, and the high-voltage wire touches the iron

15. Cut constantly?

Optical deviation, dirty and loose lenses, incorrect focal length, laser tube power loss

16. Can't the machine start?

Emergency stop, external power supply, contactor

17. XY axis does not move?

The driver is damaged, the motor cable and connector are damaged, the belt synchronous pulley is loose, and the 42V switching power supply is damaged