The correct operation and maintenance of the five-axis linkage machining center can prevent abnormal wear and tear of the machine tool and avoid sudden failure of the machine tool. Careful maintenance of the machine tool can maintain the long-term stability of the machining accuracy of the machine tool and prolong the service life of the machine tool. This work must be highly valued and executed from the management level of the factory!

Responsible person for maintenance

• The operator is responsible for the use, maintenance and basic maintenance of the equipment;
• Equipment maintenance personnel are responsible for equipment maintenance and necessary maintenance;
• The workshop management personnel are responsible for supervising the operators and equipment maintenance of the entire workshop.

Daily machining accuracy maintenance

• After the machine is turned on, it must be preheated for about 10 minutes before processing; the preheating time should be extended for machines that are not used for a long time;
• Check whether the oil circuit is smooth;
• Place the table and saddle in the center of the machine before shutting down the machine (move the three-axis travel to the middle of the travel of each axis);
• Keep the machine tool dry and clean.

Daily maintenance

• Clean the dust and iron filings of the machine tool every day: including the machine tool control panel, spindle taper hole, tool car, tool head and taper shank, tool magazine tool arm and tool magazine, turret; XY axis sheet metal shield, machine tool Inner flexible hose, tank chain device, chip chute, etc.;
• Check the lubricating oil level to ensure the lubrication of the machine tool;
• Check whether the coolant in the coolant tank is sufficient, and it is not enough to be added in time;
• Check whether the air pressure is normal;
• Check whether the air blowing in the inner taper hole of the spindle is normal, wipe the inner taper hole of the spindle with a clean cotton cloth, and spray light oil;
• Clean the knife arms and knives of the knife magazine, especially the knife claws;
• Check whether all signal lights and abnormal warning lights are normal;
• Check whether there is leakage in the oil pressure unit pipe;
• The machine tool should be cleaned after the daily work is completed;
• Keep the environment around the machine clean and tidy.

Weekly maintenance

• Clean the air filter screen of the heat exchanger, the filter screen of the cooling pump and the lubricating oil pump;
• Check whether the tool pull bolt is loose and the knife handle is clean;
• Check whether the three-axis mechanical origin is offset;
• Check whether the movement of the tool changer arm of the tool magazine or the rotation of the tool magazine of the tool magazine is smooth;
• If there is an oil cooler, check the oil cooler oil, if it is lower than the scale line, please add oil cooler oil in time;
• Clean the impurities and water in the compressed gas, check the oil amount in the oil mist separator, check whether the solenoid valves of each circuit work normally, and check the tightness of the pneumatic system, because the quality of the pneumatic system directly affects the replacement Knife and lubrication system;
• Prevent dust and dirt from entering the CNC device. There are generally oil mist, dust and even metal powder in the air of the machining workshop. Once they fall on the circuit board or electronic device in the CNC system, it is easy to cause the insulation resistance between components to drop, and even lead to damage to components and circuit boards. .

Monthly maintenance

• Check the lubrication of the shaft track, and the track surface must be well lubricated;
• Check and clean limit switches and bump blocks;
• Check whether the oil in the oil cup of the knife cylinder is sufficient, and if it is insufficient, add it in time;
• Check whether the signs and warning nameplates on the machine are clear and exist.

Semi-annual maintenance

• Disassemble the shaft anti-chip shield, clean the shaft oil pipe joint, ball lead screw, and three-axis limit switch, and check whether it is normal. Check whether the effect of the hard rail wiper blades of each axis is good;
• Check whether the servo motor and head of each axis are running normally and whether there is any abnormal sound;
• Replace the oil of the hydraulic unit and the oil of the deceleration mechanism of the tool magazine;
• Test the clearance of each axis, and adjust the compensation amount if necessary;
• Clean the dust in the electric box (make sure the machine tool is turned off);
• Comprehensively check whether all contacts, connectors, sockets and switches are normal;
• Check whether all keys are sensitive and normal;
• Check and adjust the mechanical level;
• Clean the cutting water tank and replace the cutting fluid.

Conclusion

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