Sheet Metal · 2022年3月20日

Causes of noise in CNC punching machines

When the CNC punch press is in use, there will be some noise. At this time, we need to conduct a reasonable screening for the place where the noise occurs, and find the problem as soon as possible, so that repairs can be carried out without delaying the progress of the processing. Let’s talk about the causes of noise in different parts of the punch manufacturer.

  • 1. The noise of the motor. After the double-point punch is turned on, the motor will run at high speed, and there will be mechanical noise caused by the vibration of rotating parts and components; the rotation of the cooling fan generates air noise; the alternating electromagnetic field interacts with the high frequency electromagnetic noise generated by the vibration of the rotor and stator .
  • 2. The noise caused by the clearance of running parts, whether it is production debugging error or actual needs, there must be a clearance between the parts of the double-point punch. The larger the clearance, the greater the noise caused by collision in production. Similarly, in the case of a fixed gap, the larger the stroke of the slider, the greater the noise.
  • 3. The noise of the clutch, the intermittent noise caused by the impact of the slider and the connecting rod during the reciprocating operation of the clutch when the clutch is closed. There are two types of clutches: friction type and rigid. The friction type is mostly used in small and medium tonnage high-speed presses, and the noise is relatively high.

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