01. Strictly abide by the operating rules and daily maintenance system

02. should be as little as possible to open the door of the CNC cabinet and strong current cabinet in the machining workshop air generally there will be oil mist, dust and even metal powder, once they fall on the circuit board or electronic devices in the CNC system, easy to cause the insulation resistance between the components to reduce, and even lead to damage to the components and circuit boards. Some users in the summer in order to make the CNC system can work over the load for a long time, take to open the door of the CNC cabinet to dissipate heat, which is a highly undesirable method, which eventually leads to the acceleration of the CNC system damage.

03. Regular cleaning of the heat dissipation and ventilation system of the CNC cabinet should check whether each cooling fan on the CNC cabinet works normally. Measuring the quality of a CNC lathe processing machine tool is multifaceted, but mainly requires good technology, serialization, generalization, high degree of standardization, simple structure, light weight, reliable work, high productivity Although there will not be overheating last year, but the next few years will still maintain a greater degree of growth. Check whether the air duct filter is blocked every half a year or every quarter. If the dust accumulation on the filter net is too much and it is not cleaned up in time, the temperature in the CNC cabinet will be too high.

04. Regular maintenance of input/output device of CNC system

05. The regular inspection and replacement of DC motor brushes The transitional wear of DC motor brushes will affect the performance of the motor and even cause damage to the motor. To this end, the motor brush should be regularly inspected and replaced. CNC lathes, CNC milling machines, machining centers, etc., should be inspected once a year.

06. Regular replacement of storage batteries in the general CNC system, the CMOSRAM storage device is provided with a rechargeable battery maintenance circuit to ensure that different electrical parts of the system can maintain their memory contents. Under normal circumstances, even if it has not failed, it should be replaced once a year to ensure the normal operation of the system. The replacement of the battery should be carried out under the power supply state of the CNC system to prevent the loss of information in the RAM during replacement.

07. Maintenance of the spare circuit board When the spare printed circuit board is not used for a long time, it should be regularly installed in the numerical control system to run for a period of time to prevent damage.

2. Maintenance of mechanical parts

01. The maintenance of the main drive chain regularly adjusts the tightness of the spindle drive belt to avoid the phenomenon of lost rotation caused by the big talk; Check the constant temperature mailbox of spindle lubrication, adjust the temperature range, replenish the oil in time, and clean and filter it; After the tool clamping device in the spindle is used for a long time, there will be a gap, which affects the clamping of the tool, and the displacement of the hydraulic cylinder piston should be adjusted in time.

02. Maintenance of ball screw threads regularly check and adjust the axial clearance of screw threads to ensure reverse transmission accuracy and axial stiffness; Regularly check whether the link between the lead screw and the bed is loose; The lead screw protection device should be replaced in time to prevent dust or chips from entering.

03. Maintenance of tool store and tool changing manipulator It is strictly prohibited to load overweight and extra long tools into the tool store to avoid the collision between the tool and the workpiece and the fixture when the manipulator changes the tool. Often check whether the zero return position of the tool library is correct, check whether the spindle return tool point position of the CNC lathe is in place, and adjust it in time; When the machine is started, the tool store and the manipulator should be run empty to check whether all parts work normally, especially whether the stroke switch and the solenoid valve can operate normally; Check whether the tool is reliably locked on the manipulator, and if it is found abnormal, it should be dealt with in time.

04. Hydraulic and pneumatic system maintenance regularly clean or replace the filter or filter screen of each lubrication, hydraulic and pneumatic system; Regularly check the oil quality of the hydraulic system and replace the hydraulic oil; Periodically discharge water to the air pressure system filter

05. CNC lathe machining machine tool accuracy maintenance Regular CNC lathe machining machine level and mechanical accuracy check and correction.

There are two kinds of correction methods for mechanical accuracy: soft and hard. The soft method is through the system parameter compensation, such as lead screw reverse gap compensation, coordinate positioning, precision fixed point compensation, CNC lathe machine tool back reference point position correction; The hard method is generally carried out during the overhaul of the CNC lathe processing machine tool, such as the guide rail repair, the ball screw nut pair pre-tightening to adjust the reverse clearance.