1. Strictly formulate and implement the rules and regulations for the daily maintenance of the numerical control system
according to differentCNC vertical latheThe performance characteristics of the CNC system, strict development of the daily maintenance of the rules and regulations, and in the use and operation to be strictly enforced.
2, should try to open the numerical control cabinet door and strong electric cabinet door
The air in the machining workshop often contains oil mist and dust. Once they fall into the printed circuit board or electrical components of the numerical control system, they are easy to cause the edge resistance of the components to drop, and even lead to the damage of the circuit board or electrical components.
Some users in the summer in order to make the CNC system can overload long-term work, take to open the door of the CNC cabinet to heat, this is a very undesirable method, the ultimate will lead to the accelerated damage of the CNC system. Therefore, in the work should be as little as possible to open the door of the CNC cabinet and the door of the strong electric cabinet.
3. Regularly clean the heat dissipation and ventilation system of the numerical control device to prevent the numerical control device from overheating
The heat dissipation ventilation system is an important device to prevent the overheating of the numerical control device. To this end, every day to check the numerical control cabinet on the cooling fan is running normally, every six months or a quarter to check the air duct filter is clogged, if there should be timely cleaning. If the filter on the dust accumulation too much, not timely cleaning, will cause the temperature inside the CNC cabinet is too high.
4. Regular inspection and replacement of DC motor brushes
Most of the CNC machine tools produced before use DC servo motor, which has the problem of brush wear. The transitional wear of DC motor brushes will affect the performance of the motor and even cause motor damage. To this end, the motor brushes should be regularly inspected and replaced. CNC lathes, CNC milling machines, machining centers, etc., should be inspected once a year.
5. Regular maintenance of input/output devices of the control system
Clean the magnetic head in the input device of the control system and maintain the photoelectric reader.
6. Regularly monitor the grid voltage for control devices
The control system has strict requirements on the operating grid voltage. Generally, CNC machine tools promise to fluctuate within the range of 85% ~ 110 of the rated power grid voltage, otherwise it will cause the CNC system to not work properly, and even cause damage to the internal electronic components of the CNC system. For this reason, the grid voltage should be detected frequently and controlled within-15% ~ 10% of the fixed value.
7. Regular inspection and replacement of storage batteries
Generally, the stored contents in the part of the CMOS memory in the numerical control system are maintained by the battery power supply when the power is turned off. Generally, lithium batteries or rechargeable nickel-cadmium batteries are used. When the battery voltage drops to a certain value, it will cause data loss, so check the battery voltage regularly. When the battery voltage drops to the limit value or the battery voltage alarm occurs, the battery should be replaced in time.
When replacing the battery, it is generally carried out under the power-on state of the numerical control system, which will not cause the loss of storage parameters. Once the data is lost, after replacing the battery, you need to re-enter the parameters. Under normal circumstances, even if it has not failed, it should be replaced once a year to ensure the normal operation of the system.
8. Maintenance and maintenance of ordinary relay contactor control system
For economical CNC machine tools, there are ordinary relay contactor control system. Maintenance and maintenance work is mainly how to take measures to prevent the strong electromagnetic interference of contactors and relays in the strong electric cabinet.
The electromagnetic components such as contactors and relays in the strong electric cabinet of CNC machine tools are the interference sources of the CNC system. Due to the AC contactor, AC motor frequent start, stop, the phenomenon of electromagnetic induction will make the CNC system control circuit to produce spikes or surge noise, interference system of normal work. Therefore, we must take measures to eliminate these electromagnetic interference.