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Chapter4
System Maintenance
To ensure normal use of laser cutting machine, it is necessary to perform routine care and maintenance on
equipment. Since the whole machine tool is assembled with high-precision parts, be careful in the routine
maintenance process, operate in strict accordance with the rules of each part, and perform maintenance by
dedicated personnel to avoid damage to components.
4.1
Mechanical maintenance
Mechanical maintenance mainly includes the maintenance of: guide rail, lead screw, synchronous belt,
synchronous belt wheel, screw and coupling. It is a must to the followings well done for maintenance:
After completing use every day, cleaning all parts of the equipment.
Oil sliding mechanism such as guide rail and lead screw with lubricant.
Make irregular check on the equipment to mainly check if there is poor contact of the joints. In case of
abnormality, timely treatment is needed to avoid causing serious problems.
4.1.1
Synchronous belt, synchronous belt wheel
Figure 4-1
Timing Belt and Pulley Diagram
Synchronous belt and synchronous belt wheel are the main mechanical parts of the equipment, and they
control movement track of the laser head. After movement for a certain period, the synchronous belt will
frequently be longer and loose in a small size. That will lower the accuracy and sensibility of the laser head,
Therefore, timely adjusting the transmission belt is needed.
Adjustment method: Adjustment of X direction and Y direction synchronous belt should achieve a proper
tension of it; adjustment of drive motor synchronous belt is to achieve that when pressing middle part of the
synchronous belt, the sinking level is 3% to 5% of the central distance between the belt wheel at the two ends.
Attention:
If to adjust the transmission belt too tight, the belt is not only easily made distortion but also cause more
severe abrasion of the bearing; if too loose, transmission accuracy and sensibility will be lowered. Therefore, you
①
Synchronous belt
②
Synchronous belt wheel
①
②
