What are the key points for daily maintenance of CNC roll grinding machine?

Cleaning and maintenance: Keeping the equipment clean is basic work
CNC roll grinding machines will produce a large amount of metal powder, grinding debris and coolant residue during use. If they are not cleaned in time, they are easy to enter the guide rails, screws or control systems, affecting the operation of the equipment. Operators should use a clean brush to clean the exposed areas such as the workbench, bed, and guide rails after the end of each day's work. The cabinet housing and operation panel should also be wiped regularly to prevent dust accumulation from affecting the sensitivity of the buttons and display interface. It is recommended to thoroughly clean the coolant splashing area once a week to prevent long-term accumulation of fluid and corrosion.

Lubrication system: Regularly check the oil circuit and oil quality
The lubrication system plays a key role in the operation of the grinder, including the bed guide rails, screw pairs, spindle components, etc., all of which rely on effective lubrication to reduce wear. Before starting up every day, check whether the oil level of the automatic lubrication system is sufficient and confirm whether the oil pump is operating normally. For grinders that use centralized lubrication, it is also necessary to check the unobstructed state of the oil circuit to avoid local dry friction caused by blockage. It is recommended to replace the lubricating oil every 1-2 months, clean the oil tank and filter, and keep the system clean.

Cooling system: maintain coolant cleanliness and circulation
The cooling system prevents deformation or burns of workpieces and grinding wheels due to overheating. Operators should regularly check the coolant level and concentration to ensure stable pumping pressure. If the liquid is turbid, has an odor or contains too many impurities, the water tank should be replaced and cleaned in time. The cooling pipe nozzle should avoid clogging and adjust the spray angle to adapt to different grinding operations. In addition, regularly check whether the sound of the cooling pump is normal, and any abnormality should be handled immediately.

Grinding wheel maintenance: ensure grinding efficiency and accuracy
The grinding wheel is the core grinding component of the CNC roll grinding machine, and its state is directly related to the processing quality. Operators should regularly dress the grinding wheel according to the grinding load and frequency of use to keep its surface flat and sharp. The grinding wheel should be replaced in time if it is worn too much or jumps severely. The dressing tool should also be checked regularly to keep its motion trajectory stable and without deflection. The grinding wheel flange needs to be disassembled and cleaned regularly to prevent iron powder accumulation from affecting the installation accuracy of the grinding wheel.

Guide rails and screw rods: rust-proof, dust-proof, and impact-proof
The guide rails and ball screws of CNC grinders are responsible for high-precision linear motion and are parts that are susceptible to wear and contamination. Clean impurities on their surfaces every day, and pay attention to whether there are abnormalities such as insufficient oil film, abnormal noise in the guide rails, or unsmooth movement. When the equipment is not used for a long time, the surface of the guide rails and screw rods should be coated with anti-rust oil. When loading and unloading workpieces or tools, avoid hard objects hitting such parts to avoid causing tiny scratches and affecting the subsequent movement accuracy.

Pneumatic components: keep the air source clean and the pressure stable
Some CNC roll grinding machines are equipped with pneumatic clamping or tool changing devices, which rely on a stable air source to ensure the execution of the action. Before starting the machine every day, check whether the pressure gauge value is normal, whether there is water accumulation in the drainer, and whether there is air leakage in the air path. It is recommended to clean the air filter and oil mist collector once a month, and replace the filter element if necessary to prevent water vapor or impurities from entering the actuator and affecting the life of the equipment.

Electrical system: pay attention to wiring, components and heat dissipation
The electrical system includes key units such as CNC modules, servo drives, PLCs, and switching power supplies. Operators should regularly check whether the cable connectors are loose, aging or broken. The inside of the electrical cabinet must be kept clean and dry, and the exhaust fan and filter should not be blocked. The dust filter should be cleaned once a quarter. If the temperature in the electrical cabinet is too high, it may affect the stable operation of the control system. If necessary, air conditioning or cooling devices should be configured.

Hydraulic system: regularly replace oil and check for leaks
Some roll grinders are equipped with hydraulic tailstocks or hydraulic tool holders. The hydraulic oil level and oil quality should be checked regularly, and the hydraulic oil should be replaced every 6 months, and the oil tank and filter element should be cleaned at the same time. Check whether each hydraulic joint is leaking, whether the cylinder moves smoothly, and whether the pressure meets the standard. If any abnormality is found, it should be handled in time.

Motion axis accuracy detection: ensure processing consistency
In order to ensure long-term grinding accuracy, it is recommended to perform a motion axis accuracy test once a quarter, including straightness, repeat positioning accuracy, and idle compensation. Through the system self-check program or with the help of laser interferometer, dial indicator and other tools, timely adjust parameters or perform mechanical compensation.

Operation and safety system inspection: reduce unexpected shutdowns
Before each operation, check whether the limit switches, emergency stop buttons, and safety protection covers are sensitive and reliable. If an abnormal alarm is found during operation, the machine should be stopped first to confirm the cause of the fault, and it is not allowed to continue working forcibly. Operators should be familiar with the emergency stop process and common fault handling methods to improve safety awareness.