Maintenance of CNC drilling machines requires a focus on cleaning, lubrication, rust prevention, and maintenance of key components. The specific steps are as follows:
Daily Cleaning and Lubrication
Removing Iron Scrap and Oil: After work, thoroughly clean iron scraps and chips from inside and outside the machine tool. Wipe the guide rails, worktable, and sheet metal surfaces to avoid residue.
Lubricating Key Components: Regularly add lubricating oil to the guide rails, sliding surfaces, and hydraulic/pneumatic systems. Check the oil level and quality, and replace deteriorated oil promptly.
Rust Prevention and Sealing
Rust Prevention Measures: When the machine is to be shut down for an extended period, apply rust-preventive oil to the worktable and guide rails. Run the machine at slow speed for one hour to lubricate the linear guides.
Sealing Maintenance: Check the aging of hydraulic and pneumatic seals to prevent oil leaks or insufficient pressure due to hardening.
Electrical and Hydraulic System Maintenance
Power Supply Check: Before starting the machine, test the voltage stability (it must stabilize for 10 minutes). Check the cooling fan and filter of the electrical control box for blockages.
Hydraulic System: Change the hydraulic oil regularly (recommended every 3-6 months), clean impurities from the oil lines, and ensure there are no leaks in the oil pump and pipelines.
Key Component Maintenance:
Springs and Cutting Tools: Regularly clean or lubricate the travel switches, cutter arm springs, and hydraulic valve springs; replace contaminated drive units.
Batteries and Desiccants: Replace the system battery and electrical cabinet desiccant before long holidays to prevent circuit boards from getting damp.
Long-Term Shutdown Protection:
Power and Gas Shutdown: When shutting down, turn off the main power and gas supply, return the Y-axis to the neutral position, and the Z-axis to zero to prevent seals from hardening.
Rodent and Moisture Prevention: Close the electrical box, check the workshop's waterproof and moisture-proof measures, and prevent rodents from chewing through wiring.
