The core of the protective maintenance of CNC processing machine tools is to improve the maintenance of daily work equipment. Important equipment maintenance work includes the following contents: daily inspection, weekly inspection, monthly inspection, quarterly inspection, and half-year inspection. The preventive equipment maintenance of CNC processing machine tools is as follows:
1. Daily inspection of CNC machine tools
Its important projects include hydraulic transmission system, spindle bearing lubrication system, guide rail lubrication system, cooling system, and pneumatic operating system. Daily inspection is to inspect according to the normal conditions of each operating system. For example, when the entire process of the spindle bearing lubrication system is inspected, the switch power supply light should be on and the oil pump should operate normally. If the switch power supply is not on, the spindle bearing should be maintained in the terminated state and contact the mechanical engineer. Perform overhaul.
2. Weekly inspection of CNC machine tools
Its important items include machine tool parts and spindle bearing lubrication system, which should be checked regularly every week, especially for machine parts to eliminate iron filings and clean up external dirt.
3. Monthly inspection of CNC machine tools
It is important to conduct routine inspections on the switching power supply and the air dryer. The working voltage of the switching power supply is under normal conditions, the rated power is 180V-220V, and the frequency is 50Hz. If there is any abnormality, it must be accurately measured and adjusted. The air dryer should be removed once a month, cleaned and installed.
4. Seasonal inspection of CNC machine tools
The quarterly inspection should be carried out on three aspects: the machine bed, hydraulic transmission system, and spindle bearing lubrication system. For example, when performing routine inspections on the machine bed, it is important to see whether the machine precision and machine tool level conform to the regulations in the manual. If there is any problem, you should contact the mechanical engineer immediately. When performing routine inspections on the hydraulic transmission system and the main shaft bearing lubrication system, if there are any problems, the 6oL and 20L oils should be replaced and cleaned.
5. CNC machining machine tools are inspected most of the year
After more than half a year, routine inspections should be carried out on the hydraulic transmission system, spindle bearing lubrication system and X-axis of the machine tool. If something goes wrong, it should be replaced with new oil and cleaning is in progress. After comprehensively understanding and proficient in the common sense of preventive maintenance, it is also necessary to have a deeper understanding and indispensable proficiency in the causes and handling of abnormal conditions in the hydraulic operating system. For example, when the oil pump does not inject oil, the pressure is abnormal, or there is noise, etc., you should understand the main reasons and the corresponding solutions.