The core of daily maintenance for CNC turning machines lies in three key aspects: cleaning, lubrication, and inspection. Adhering to these daily procedures can significantly extend equipment life and ensure machining accuracy. The following are the key maintenance points for the entire process, including before startup, during operation, and after shutdown:
Power Supply and Air Pressure Check: Confirm that the power supply voltage is stable and the air pressure gauge reading is within the range of 0.5-0.7 MPa. This prevents chuck clamping failure or abnormal tool changing in the turret due to insufficient air pressure.
Lubrication System Check: Check if the lubricating oil level in the tank is between the marks. After starting the system, observe whether the lubrication pump is supplying oil normally, ensuring adequate lubrication of moving parts such as guide rails and lead screws.
Cooling System Check: Check the coolant level and cleanliness in the coolant tank. If insufficient, replenish with the same type of coolant. If cloudy, record the condition and arrange for filtration or replacement.
Clean the workbench and guide rails: Use a clean cloth to remove metal shavings, cutting fluid, and oil stains, paying special attention to cleaning both sides of the guide rail sliders to prevent metal shavings from scratching the guide rail surface.
Tool and chuck inspection: Check if the tools on the turret are loose, clean debris from the chuck jaws, and confirm that clamping is secure.
Safety and auxiliary components inspection: Check if the protective door seal is intact, and whether the emergency stop button and control panel buttons rebound normally. Finally, turn off the main power and air supply.
