CNC cutting machine spindle as a central part, the highest use rate, is also one of the most problematic parts. Spindle long-term high load work, coupled with the operator if the use of non-standard, very simple noise phenomenon. The following Xiaobian take us to analyze together.

1. If the CNC cutting machine motor is working without load, announce the buzz, and the motor has an abnormal axial sensation, open or shut down when there is a buzz, indicating that the lubrication state of the spindle is not very good, or the shaft aligning performance is not good unstable sensation. To add lubrication.

2. If the retainer and tumbling body sensation, or bear torque, load or radial clearance, simple intermittent noise. In order to solve this problem, to improve the accuracy of the retainer, bearing to choose small clearance or to apply preload to the bearing, reduce the torque load, reduce the error of the device, choose good quality grease.

3. If the CNC cutting machine spindle announces the rattling sound, the frequency changes with the working speed of the bearing, it is necessary to improve the processing quality of the surface of the bearing raceway, reduce the amplitude of the ripple degree, prevent collision, and check the work of the free end bearing.

4. If the bearing announces irregular impurity sound, and the sound is large and small, it is necessary to choose good oil, improve the cleanliness before grease injection, and strengthen the sealing performance of the bearing.

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