Laser cutting machine common problems and solutions
1. Why is the cutting effect not good or cutting through?
Answer: The cutting effect is not good or the cutting is not cut through. Generally, the power setting is too small, the potentiometer is turned too small, the light is polarized, the lens is dirty, the focusing lens is installed backwards, the focal length, the laser power supply, the power attenuation of the laser tube, the water temperature is too high, and the voltage is unstable It is determined according to the actual situation, from simple to deep.
2. Why can't I connect to the device?
A: Whether the board driver is installed, whether the usb cable or network cable is plugged in, the usb cable or network cable is broken, the adapter board is broken, the board card, etc.
3. What should I do if the cutting machine is turned on and returns to the origin in the opposite direction?
Answer: This kind of fault is generally caused by the failure of the origin switch. The origin switch has two types: proximity switch and mutual switch. The reverse direction of returning to the origin is generally caused by the short circuit of the switch coil, which can be solved by replacement.
4. Why does the cutting graphics deform and overlap?
A: The synchronous wheel screw is loose, the motor wire is broken, the motor is damaged, the driver, the voltage, etc.
5. Why does the equipment fail to start and the indoor air switch trips when it is turned on?
Answer: Whether the emergency stop is bounced, whether the external circuit is connected, whether the internal air switch of the equipment is closed, whether you hear a popping sound when it is turned on, if so, please check the main contactor and control transformer, etc.; water leakage of water protection causes water into the laser power supply Short circuit (for example, the jghy12570 water protection position is installed on the side, and the laser power supply is just below it), the 107 water pump is short-circuited, and the indoor air switch is too small.
6. Why does the high-voltage line catch fire?
A: This problem is really a headache. My suggestion is to put a high-voltage insulating sleeve on the outside of the high-voltage line.
7. Why is the graphic size too large or too small?
A: Whether the output graphic size is the same, the z-axis height position changes, the correction file, etc.
8. Why are the colors in the middle of the printed image different from those around it?
A: It is not well adjusted, such as adjusting the focusing coefficient, adjusting the w-axis focus, etc.
9. Why is there damage and the spot becomes thicker during the marking process?
Answer: Dynamic, the da board is broken, etc.
10. Why is the position of the marking graphics offset?
Answer: The position of the x-axis or y-axis of the galvanometer is offset. Find the center point and adjust the xy-axis position according to the actual offset direction.
11. What should I do if the xy axis of the vibrating lens swings and the dynamic motor swings abnormally?
A: Replace the ±12±15v switching power supply; replace the ±12±28v switching power supply.
12. What's wrong with not getting light?
Answer: Whether the water return of the chiller is normal, whether the position of the w-axis changes, whether the dc48v32a laser power supply is normal, the laser tube, etc.
13. Why is there no display on the power-on display panel?
Answer: Whether the 5v12v24v switching power supply is normal, and the display panel is damaged.
14. What should I do if the display panel fails if the machine does not return to the origin?
15. Why doesn't the z-axis feed or move weakly?
Answer: Z-axis feeding motor problem, driver problem, bearing, foreign matter stuck, etc.
16. What should I do if the glass tube does not emit light?
A: The light output control of the glass tube mainly includes laser tube, laser power supply, water circulation system and light output signal. The light output signal also includes the pwm light output signal given by the board, water protection signal, door switch signal, etc. Therefore, the laser tube does not emit light mainly from the laser tube laser power supply water circulation system and the light output signal. Generally, first observe and directly observe whether the laser power supply is normally energized, whether the inner tube and outer tube of the laser tube are abnormal, and whether the water circulation system is normal. Replace or adjust accordingly. When the above aspects are normal, the problem of the optical signal should be considered. Generally, the short-circuit signal (short-circuit the laser power supply current 5v and ain short-circuit the water to protect p and gnd and control l and gnd with a lock-free switch) is used first. Test the laser tube and laser power supply. If this method can emit light normally, it means that the laser tube laser power supply is not faulty. It is a signal problem such as water protection switch, relay, door switch, board pwm signal, etc., which can be eliminated in turn. If this method does not emit light, it is the problem of the laser tube or the laser power supply, which can be solved by the replacement method in the case of poor judgment.
17. Why does the RF laser tube not emit light?
Answer: When the water circuit is smooth and the laser power supply is normally started, first check whether the DC 48v of the laser power supply is normal; the conduction of the 4 feet and 13 feet of the 25-pin plug-in of the laser tube can be turned on, indicating that the water protection signal is normal, but it cannot be turned on. Check the water Protection; measure the voltage of pins 7 and 20 if it is not pre-adjusted or the DC voltage is around 4 to 5v at the beginning, and it is a normal signal if it is pre-adjusted or at around 1 to 3v at the beginning. If the water, power and these two signals are normal, it can generally be judged that the laser tube is faulty. If the signal is abnormal, it means that it is a board problem or a circuit problem.
18. Why is the connection error of the laser tube displayed after the RF laser tube is replaced?
Answer: After the connector, power cord, and water connection are normal, the chiller and equipment still cannot be connected normally. Generally, the connection circuit board of the twenty-five-pin connector is broken or incompatible, such as encrypted tubes and non-encrypted tubes. of this board is not compatible.
19. Why is the cutting machine dislocated?
Answer: 1.) Feeding cutting dislocation. First, the step distance of the feeding shaft. Step distance = measured length * original step distance/real length. Second, check whether the synchronous belt locking wheel of the feeding shaft and the motor synchronous belt locking wheel are loose. The third is rolling. There is relative sliding between the loose mesh and the feeding shaft, and check whether there is jam phenomenon
2.) Dislocation of cutting without feeding. First, the cart motor or the synchronous wheel of the optical axis is loose. Second, the step is lost. The lost step may be the machining speed. The idle speed or the acceleration setting is too large. If the current is too small, it may be that the driver is bad or the motor is bad. Generally, the motor is bad and the phenomenon of losing steps is less.
