How to do daily maintenance on CNC machine tools

The key to preventive maintenance of CNC machine tools is to strengthen daily maintenance. The main maintenance work includes the following: daily inspection, weekly inspection, monthly inspection, quarterly inspection, and semi-annual inspection. Preventive maintenance is as follows:

1. Daily inspection of CNC machine tools

The main items include hydraulic system, spindle lubrication system, guide rail lubrication system, cooling system, and air pressure system. Daily inspection is to detect according to the normal conditions of each system. For example, when the process inspection of the spindle lubrication system is carried out, the power light should be on and the hydraulic pump should operate normally. If the power light is not on, the spindle should be kept stopped and the mechanical engineer should be contacted for maintenance.

2. Weekly inspection of CNC machining

The main items include machine tool parts and spindle lubrication system, which should be properly inspected every week, especially the machine tool parts should be cleared of iron filings and external debris.

3. Monthly inspection of CNC machining

Mainly check the power supply and air dryer. The rated voltage of the power supply is 180V-220V under normal circumstances, and the frequency is 50Hz. If there is any abnormality, it should be measured and adjusted. The air dryer should be disassembled once a month, and then cleaned and assembled.

4. Quarterly inspection of CNC machine tools

The quarterly inspection should mainly check the machine bed, hydraulic system, and spindle lubrication system. For example, when inspecting the machine bed, it is mainly to see whether the machine accuracy and machine level meet the requirements in the manual. If there is any problem, you should contact the mechanical engineer immediately. When inspecting the hydraulic system and spindle lubrication system, if there is any problem, replace 6oL and 20L of new oil respectively, and clean them.

5. Half-year inspection of CNC machining machines

After half a year, the hydraulic system, spindle lubrication system and X-axis of the machine tool should be inspected. If there is a problem, replace the new oil and then clean it. After being fully familiar with and mastering the knowledge of preventive maintenance, you must also have a deeper understanding and necessary mastery of the causes and treatment of abnormal phenomena in the oil pressure system. For example, when the oil pump does not spray oil, the pressure is abnormal, or there is noise, you should know the main reasons and the corresponding solutions.