As the core accessory, the spindle of the CNC cutting machine has the highest usage rate and is also one of the accessories with the most failures. The spindle runs under high load for a long time, and if the operator uses it irregularly, it is prone to noise. In the daily actual operation process, how to solve the problem of noise in the spindle of the CNC cutting machine?
If the retainer and rolling elements vibrate, or bear torque, load or radial clearance, it is easy to produce pattering noise. To solve this problem, to improve the accuracy of the retainer, the bearing should be selected with a small clearance or preload on the bearing, reduce the moment load, reduce the installation error, and select good quality grease.
If the motor makes a humming sound when it is running under no load, and the motor has an abnormal axial vibration, a humming noise occurs when turning on or off, it means that the lubrication state of the spindle is not very good, or the shaft alignment performance is not good. For unstable vibration, increase lubrication.
If the bearing emits irregular impurity sound, the sound is sometimes loud and sometimes small, and good grease should be selected to improve the cleanliness before grease injection and strengthen the sealing performance of the bearing.
If the spindle of the CNC cutting machine makes a rattling sound, and the frequency changes with the running speed of the bearing, it is necessary to improve the processing quality of the bearing raceway surface, reduce the amplitude of the waviness, and avoid bumps, and check the operation of the free end bearing. .
The above are some movements that the spindle usually emits during the machining process. The Hulk CNC prompts about these different movements, we must make correct judgments, and then deal with them according to the problem.