CNC machines are the brain of the manufacturing process. So it is a good practice to take care and maintain them regularly or else its failure can cost the company thousands of dollars. You can conduct maintenance daily, monthly and yearly.

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How to Maintain a CNC Machine
We all are familiar with the machines like lathe, milling, drilling, etc. These
machines require human involvement to perform and be monitored. This
way, it consumes more time and has less accuracy. To overcome this problem
CNC (Computer Numerically Controlled) machines were manufactured.
CNC machines can be defined as the machines that are controlled by
computer and the operations are performed by inserting the program. You
can consider them as the brain of the whole manufacturing process.
This makes it even more important to maintain them, because if it goes
down, all the other processes will stop working. Such failures can cost
businesses thousands of dollars because they have to instantly find the
replacement parts, manage missed deliveries, etc.
To avoid such situations what we can do is focus on the maintenance of the
machine on a regular basis. And if any part requires replacement you can
easily find good quality Mazak parts, Fanuc parts, etc. online.
Moving further, let us learn about CNC machine maintenance in detail.
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What Parts of CNC Needs Maintenance?
The maintenance of the CNC machines is not as complicated as it sounds. It
is simple but critical as no company can afford the cost a small mistake can
cause. Hence, here is the complete list of the maintenance steps you need to
consider.
Coolant: The parts of the machine move fast and this means it will generate
heat. So a fixed coolant level must be maintained otherwise these parts can
get damaged. If they get damaged you can find good quality Mazak parts,
Fanuc parts, etc. online.
Cooling Oils: The speed of the spindle is around 10,000 RPM and it is
obvious that it will produce heat. Thus, to avoid this thermal energy a right
cooling system with the right concentration of oils is needed.
Lubrication: The moving parts of the machine can get dry and might need
lubrication to reduce unwanted friction. Thus, using oil or grease on the
parts moving smoothly. The other fluids like hydraulic fluid in the CNC
machine also need replacement. If the machine consumes fluid excessively,
then it indicates that the machine may have some problem.
Surfaces: The grime will build up on the surface if not cleaned regularly. To
ensure a clean working environment, a good grip and proper visibility in the
room, clean windows, doors, handles, etc. are important.
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The other thing that you need to care about is the sound of the machine. If
the machine is having any slight mechanical failure, it will sound differently.
You should always consider it as a red flag and check it intensively. And if any
parts need replacement, you can easily find Mazak replacement parts, Fanuc
replacement parts, etc. online.
How Often Do You Do Maintenance Checks?
A CNC machine’s sensors, detector system, etc. also gives signals if anything
is wrong. Apart from that you must indulge in a routine based on the hours
of machine used. To save yourself from doing all the tasks at once, you can
divide these tasks strategically.
We have made a list for you but can change the time intervals as your work
requirements and usage of the machine.
Daily Maintenance tasks:
● Check lubrication levels and refill if needed
● Any part that looks dry must be greased
● Check coolant concentration and level; add more if required
● Empty chip hopper
● Check hydraulic system levels
● Clean surface and the surroundings
Monthly Maintenance:
● Clean or replace air filters
● Clean coolant filters
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● Clean radiators
● Clean cooling fans
● Review the checklists for unusual oil consumption
● Adjust chains or conveyors
Yearly Maintenance:
● Completely remove coolant tank and take out metal chips to check for
bacterial growth
● Inspect and clean the system
● Check hydraulic oil for contaminates
● Replace filters
● Drain and clean lubrication unit and refill new oil
● Check drawbar tension and chuck cylinder
● Replace the X and Y axis gibs if needed under backslash program
Wrapping Up
All CNC machines perform different tasks but the processes like coolants,
lubrications, filters, etc. are common for almost all CNC machines. Even if a
small breakage happens your in-house team will be able to repair it in no
time if you already have replacement parts of your CNC machine handy. You
will easily find the Mazak replacement parts, Fanuc replacement parts, etc.
Hence, this way it ensures your delivery schedule is not affected.
Source: https://writeonwall.com/how-to-maintain-a-cnc-machine/
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