1. Daily maintenance of CNC gantry machining center
Maintenance of CNC system:
1. Strictly abide by the operating procedures and daily maintenance system;
2. Prevent dust from entering the CNC device: floating dust and metal powder can easily cause the insulation resistance between components to drop, resulting in failure or even damage to components;
3. Regularly clean the cooling and ventilation system of the CNC cabinet;
4. Always monitor the grid voltage of the numerical control system: the grid voltage range is 85% to 110% of the rated value;
5. Regularly replace the storage battery;
6. Maintenance when the CNC system is not used for a long time: often power on the CNC system or make the CNC gantry machining center run the warm machine program;
7. Maintenance of spare circuit boards Maintenance of mechanical parts.
Maintenance of mechanical parts:
1. Maintenance of tool magazine and tool changing manipulator
1) When manually loading the tool on the tool magazine, make sure that it is in place and check whether the locking on the tool seat is reliable;
2) It is strictly forbidden to put overweight and long tools into the tool magazine to prevent the tool from dropping or the tool colliding with the workpiece, fixture, etc. when the manipulator changes the tool;
3) When using the sequential tool selection method, it is necessary to pay attention to whether the order of the tools placed on the tool magazine is correct. For other tool selection methods, it is also necessary to pay attention to whether the number of the replaced tool is consistent with the required tool, so as to prevent accidents caused by changing the wrong tool;
4) Pay attention to keep the tool handle and tool sleeve clean;
5) Always check whether the zero return position of the tool magazine is correct, check whether the position of the machine tool spindle return tool change point is in place, and adjust it in time, otherwise the tool change action cannot be completed;
6) When starting up, the tool magazine and the manipulator should be run dry first to check whether each part is working normally, especially whether each travel switch and solenoid valve can operate normally.
2. Maintenance of ball screw pair
1) Regularly check and adjust the axial clearance of the screw nut pair to ensure the reverse transmission accuracy and axial rigidity;
2) Regularly check whether the connection between the screw support and the bed is loose and whether the support bearing is damaged. If there are any of the above problems, tighten the loose parts in time and replace the support bearings;
3) The ball screw using grease, clean the old grease on the screw once every six months, and replace the new grease. The ball screw lubricated with lubricating oil should be refueled once a day before the machine tool works;
4) Pay attention to avoid hard dust or chips from entering the lead screw protective cover and hitting the protective cover during the working process. If the protective device is damaged, it should be replaced in time.
3. Maintenance of the main drive chain
1) Regularly adjust the tightness of the spindle drive belt;
2) Prevent various impurities from entering the fuel tank. Change the lubricating oil once a year;
3) Keep the connection between the spindle and the tool holder clean. It is necessary to adjust the displacement of the hydraulic cylinder and piston in time;
4) Adjust the counterweight in time.
4. Maintenance of hydraulic system
1) Regularly filter or replace the oil;
2) Control the temperature of the oil in the hydraulic system;
3) Prevent hydraulic system leakage;
4) Regularly check and clean the oil tank and pipeline;
5) Implement the daily inspection system.
5. Maintenance of pneumatic system
1) Remove impurities and moisture from compressed air;
2) Check the oil supply of the lubricator in the system;
3) Maintain the sealing of the system;
4) Pay attention to adjusting the working pressure;
5) Clean or replace pneumatic components and filter elements;
Second, the use of CNC gantry machining center attention
1. The use environment of the CNC gantry machining center: for the CNC gantry machining center, it should be placed in a constant temperature environment and away from equipment with large vibrations (such as punches) and equipment with electromagnetic interference;
2. Power requirements;
3. The CNC gantry machining center should have operating procedures: carry out regular maintenance and maintenance, and pay attention to record and protect the scene in case of failure;
4. The CNC gantry machining center should not be stored for a long time, which will lead to the failure of the storage system and the loss of data for a long time;
5. Pay attention to training and equipping operators, maintenance personnel and programmers