How much do you know about “CNC Machining Center Maintenance Method”?

    CNC machining centers are complex machines that require regular maintenance to ensure optimum performance and longevity. Here are a few main maintenance methods:

Lubrication: Proper lubrication is critical to the smooth operation of a CNC machining center. Regularly check and replenish lubricating oil, grease, coolant and other lubricating oils. Follow the manufacturer’s guidelines for lubrication intervals and the type of lubricant to be used.

Cleaning: Clean the machine regularly to prevent the buildup of dirt,
swarf and other debris. Use suitable cleaning agents and tools to remove dirt from critical components such as spindles, tool holders and guides.

Inspection and adjustment: Regular inspection and adjustment of shafts, ball screws, transmission belts, couplings and other components. Check for any signs of wear, misalignment or damage. Make necessary adjustments or replacements as needed.

Calibration: CNC machining centers should be calibrated regularly to maintain accuracy. This includes checking and adjusting positioning accuracy, repeatability and tool offsets.

Preventive Maintenance Program:Implement a preventive maintenance program that includes routine tasks such as changing filters, checking electrical connections, and checking safety features. Keep records of maintenance activities for reference. It should be noted that these maintenance methods may vary according to the specific type and model of CNC machining center. Always consult your machine manufacturer’s documentation and seek professional assistance if necessary.

    The proper operation as well as maintenance of CNC devices can stop irregular deterioration of the device and stay clear of sudden failing of the device device. The mindful maintenance of the equipment tool can preserve the long-term security of the machining precision of the maker tool as well as prolong the service life of the equipment device. This job needs to be highly valued as well as executed from the monitoring level of the factory!

▌ Accountable person for upkeep

1. The operator is responsible for the use, upkeep as well as fundamental upkeep of the devices;

2. Equipment maintenance employees are in charge of tools maintenance and also essential maintenance;

3. The workshop management employees are accountable for the supervision of the drivers as well as tools maintenance of the entire workshop.

▌ Fundamental needs for using CNC equipment

1. Numerical control tools is needed to avoid areas with moist, excessive dirt and also corrosive gases;

2. Stay clear of direct sunlight and other heat radiation. Precision CNC machining equipment need to be avoided devices with huge resonances, such as punching makers, forging equipment, etc;.

3. The operating temperature level of the devices should be controlled between 15 levels and also 35 degrees. The precision machining temperature level must be managed at about 20 levels, and also the temperature fluctuation need to be purely managed;.

4. In order to avoid the influence of large power variations (greater than plus or minus 10%) as well as feasible instant disturbance signals, CNC equipment generally takes on devoted line power supply (as an example, divide a network from the low-voltage power circulation area for CNC machine devices), and also add a voltage supporting tool etc., can reduce the impact of power supply top quality and also electric disturbance.

▌ Daily machining precision maintenance

1. After starting up, it has to be preheated for concerning 10 mins before handling; if the device is not utilized for a long period of time, the pre-heating time must be extended;

2. Check whether the oil circuit is smooth;

3. Before closing down, position the workbench as well as saddle at the center of the equipment (move the three-axis stroke to the middle setting of each axis stroke);.

4. The equipment device is kept completely dry as well as tidy.

▌ Daily maintenance.

1. Clean as well as clean the dust and also iron filings of the equipment device everyday: consisting of equipment device control panel, pin taper hole, tool cart, tool head as well as taper manage, device magazine arm as well as device stockroom, turret; XY axis sheet steel guard, device Inner adaptable hose, tank chain tool, chip flute, and so on;.

2. Check the level of lubricating oil to make certain the lubrication of the device tool;.

3. Check whether the coolant in the coolant container is sufficient, and also if it is insufficient, include it in time;.

4. Check whether the air pressure is typical;.

5. Examine whether the air blowing of the cone hole in the pin is normal, clean the cone opening in the pin with a clean cotton cloth, and also spray light oil;.

6. Clean the device magazine arm as well as device, specifically the claw;.

7. Check whether all signal lights as well as irregular warning lights are typical;.

8. Check whether there is leak in the oil stress device pipe;.

9. After the everyday work of the equipment device is finished, execute cleaning as well as cleaning job;.

10. Maintain the atmosphere around the maker tidy.

▌ Weekly upkeep

1. Clean the air filter of the heat exchanger, the filter of the cooling pump and lubricating oil pump;

2. Check whether the pull screw of the device is loose and whether the deal with of the knife is tidy;

3. Examine whether the three-axis mechanical origin is countered;

4. Examine whether the movement of the device adjustment arm of the tool magazine or the rotation of the knife disc of the device magazine is smooth;

5. If there is an oil cooler, inspect the oil of the oil cooler, if it is less than the scale line, please fill in the oil colder oil in time;

6. Tidy the pollutants as well as water in the pressed gas, examine the amount of oil in the oil haze separator, examine whether the solenoid valves are working typically, as well as inspect the sealing of the pneumatic system, since the quality of the gas system straight affects the replacement Knife as well as lubrication system;

7. Avoid dirt and dust from entering the CNC tool. In the machining workshop, there are normally oil haze, dirt as well as even metal powder in the air. Once they fall on the motherboard or electronic tools in the CNC system, it is very easy to create the insulation resistance in between machining parts to go down, and also create damage to cnc milled parts and motherboard.

▌ Month-to-month Upkeep

1. Check the lubrication condition of the shaft track, and also the track surface should be well oiled;

2. Examine and also tidy restriction buttons and also touch blocks;

3. Inspect whether the oil in the blade cyndrical tube oil mug is sufficient, and also add it in time if it is insufficient;

4. Examine whether the sign plate and also cautioning nameplate on the machine are clear as well as exist.

▌ Semi-annual upkeep

1. Disassemble the shaft chip security cover, clean the shaft oil pipe joint, round overview screw, three-axis limitation button, as well as check whether it is typical. Inspect whether the difficult rail wipers of each axis remain in good condition;

2. Check whether the servo motors of each axis and the head are running usually, as well as whether there is any uncommon noise;

3. Replace the oil of the hydraulic unit and also the oil of the slowdown system of the device magazine;

4. Check the clearance of each axis, as well as change the settlement quantity if required;

5. Clean the dirt in the electric box (see to it the machine is switched off);.

6. Thoroughly inspect whether the calls, joints, outlets and also switches are normal;.

7. Examine whether all secrets are sensitive and typical;.

8. Inspect as well as change the mechanical degree;.

9. Clean the cutting water tank as well as change the cutting fluid.

▌ Annual professional maintenance or fixing

    Keep in mind: Specialist upkeep or fixings need to be executed by expert designers.

1. The basing security system should have great connection to ensure personal security;

2. Perform normal inspections on vital parts such as circuit breakers, contactors, single-phase or three-phase arc extinguishers. If the circuitry is loose or the sound is as well loud, learn the factor as well as remove hidden dangers;

3. Make certain that the cooling fan in the electric cupboard is running generally, otherwise it may cause damages to the vitality components;

4. If the fuse is blown as well as the air switch trips often, the reason must be learnt and also eliminated in time;

5. Inspect the upright precision of each axis and also readjust the geometric precision of the equipment device. Recover or meet the needs of the device tool. Because geometric accuracy is the basis of the detailed efficiency of machine tools. For example, if the verticality of XZ and YZ is not good, it will influence the coaxiality and symmetry of the workpiece, and also if the perpendicularity of the pin to the table is bad, it will impact the similarity of the work surface and more. For that reason, the recuperation of geometric accuracy is the focus of our upkeep;

6. Inspect the wear and also clearance between the electric motors of each axis and the screw poles, as well as check whether the supporting bearings at both ends of each axis are damaged. When the coupling or bearing is damaged, it will certainly raise the sound of the device operation, impact the transmission accuracy of the machine tool, damages the cooling seal ring of the screw pole, trigger the leakage of reducing fluid, and seriously impact the life of the screw pole and also spindle;

7. Inspect the protective cover of each axis and replace it if essential. If the safety cover is not good, it will straight accelerate the wear of the guide rail. If there is a huge contortion, it will certainly not only raise the tons on the equipment device, but additionally cause higher damages to the overview rail;

8. The straightening of the screw pole, since some customers trigger the deformation of the screw rod after the equipment tool clashes or the void in between the plug iron is not good, which directly influences the machining precision of the maker device. We initially loosen up the screw pole to make it in a natural state, and afterwards set up the screw pole according to the maintenance regulations to make sure that the screw rod is devoid of digressive force as long as possible throughout the motion, to make sure that the screw pole is likewise in a natural state during handling;

9. Check and readjust the belt transmission system of the main shaft of the device tool, appropriately readjust the tightness of the V-belt, avoid the maker from slipping or losing turning throughout processing, change the V-belt of the main shaft if essential, and also check the stress belt of the 1000r/min primary shaft for high and low gear conversion The quantity of oil in the wheel cyndrical tube. Add it when essential, absence of oil will certainly cause failure during low gear conversion, seriously impact the surface roughness throughout milling, and reduce the reducing torque to the bottom;

10. Cleaning up as well as adjustment of the device magazine. Change the turning of the device magazine to make it alongside the table, replace the circlip if needed, adjust the angle of the spindle orientation bridge and the rotation coefficient of the tool magazine, as well as add lubricating grease to each relocating component;

11. Stop the system from overheating: You need to examine whether the air conditioning fans on the CNC closet are working generally. Check whether the air duct filter is blocked. If there is excessive dust on the filter, if it is not cleaned in time, the temperature level in the CNC cabinet will be expensive;

12. Regular maintenance of the input/output device of the CNC system: Check whether the transmission signal line of the equipment device is damaged, whether the interface and also port screw nuts are loose and also fall off, whether the network cable is placed strongly, and also the router is cleaned and also preserved;

13. Regular inspection as well as replacement of DC motor brushes: Too much wear of DC motor brushes will certainly impact the performance of the electric motor and also cause damages to the electric motor. Consequently, regular evaluation and also substitute of motor brushes should be carried out. CNC turning, CNC milling machines, machining centers, etc should be examined annually;

14. Frequently check and also change the storage battery: the general numerical control system has a rechargeable battery upkeep circuit for the CMOS RAM storage device to guarantee that the system can preserve the materials of the memory when the system is not powered on. In general, even if they haven’t failed, they ought to be changed once a year to guarantee the system functions correctly. The replacement of the battery ought to be executed under the power supply state of the CNC system to avoid the information in the RAM from being shed throughout the substitute;

15. Tidy the electrical parts in the control cupboard, check and fasten the fastening state of the terminals; tidy as well as clean the CNC system control component, circuit board, follower, air filter, warmth sink, and so on; tidy the internal components of the operation panel, circuit card, Fan, check the tightness of the ports.

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