Operation and Maintenance of Cnc Milling Machine (Part 2)

5. Frequently monitor the grid voltage of CNC Milling machine

Generally, the voltage fluctuation of the CNC milling machine should be controlled between + 10% and -15%. If it exceeds this scale, the CNC system will not work smoothly, and the important electronic components will be damaged. Therefore, always pay attention to the fluctuation of the grid voltage. In areas where the quality of the power grid is relatively poor, communication and voltage stabilization equipment for CNC milling machines should be equipped in time, which will cause a significant drop in the fault rate.

6. Check and replace dc motor brushes on time

Excessive wear of the brush of dc motor will affect the function of the motor and even cause the motor damage.Therefore, the motor brush should be checked and replaced on time.CNC milling machine, should be checked once a year.If the brush is replaced, make the motor run empty for a period of time, in order to make the brush appearance and commutator appearance accord with good.The viewing period varies with the frequency of use of the machine, usually every six months or once a year.

7. Replace memory batteries on time

For example, if CMOS RAM device is used in the memory, a rechargeable battery holding circuit is set inside in order to persist the contents stored in the period when the CNC system is not energized.When the normal power supply is supplied, the + 5V power supply is supplied to CMOS RAM via a diode, and the rechargeable battery is charged.When the CNC system blocks the power supply, it is replaced by battery power to maintain the information in the CMOS RAM.In general, even if the battery does not fail, the battery should be replaced once a year to ensure that the system works properly.In addition, must pay attention to is that the replacement of the battery should be carried out in the state of power supply CNC system, so as not to form storage parameters lost.Once the parameters are lost, input them from scratch after replacing the new battery.

CNC Gantry Milling Machine

8. Protection of CNC gantry milling machine when it is not used for a long time

In order to improve the utilization rate of the CNC system and reduce the CNC system, the CNC milling machine should be used at full load, and not idle for a long time. For some reason, the formation of the CNC system for a long time idle, in order to prevent CNC system damage, need to pay attention to the following two points.

(1) to often give power to the CNC system, especially in the environment of greater humidity in the rainy season should be more so. In the machine tool lock does not move (that is, the servo motor does not turn), let the CNC system empty operation, use the electrical component itself of the heat to disperse the moisture in the CNC system, ensure the electronic equipment function is safe and reliable. The practice has proved that electrification is a useful way to reduce the fault rate in areas with high air temperature.

(2) if the CNC milling machine feed shaft and spindle choose dc motor to drive, the brush should be taken out from the dc motor, so as to avoid chemical corrosion effect, so that the commutator corrosion, the formation of commutator function becomes bad, and even make the whole motor damaged.