High-speed precision punch is noisy, what are the reasons for it?

2022-02-28

There are three pairs of friction pairs in the crank and connecting rod slider structure of the high-speed precision punching machine: the small end of the connecting rod and the slider ball seat; the crankshaft journal and the crankshaft bush; the crank journal and the large end bearing bush of the connecting rod. Due to production and debugging errors and actual needs, there are inevitably gaps between these components. The relative movement between components, when transitioning from free movement to contact movement, inevitably brings collisions, and the larger the gap, the stronger the noise. In addition, when the gap is fixed, the greater the number of slider strokes, the greater the noise.

High-speed precision punching machine motor noise, as a power source, the noise generated when the motor is running includes electromagnetic noise, aerodynamic noise and mechanical noise of the motor winding. The degree of motor noise mainly depends on the power and speed of the motor. The electromagnetic noise of the motor is generally caused by the interaction of alternating electromagnetic fields to excite the rotor and stator to vibrate, usually high-frequency noise.

Clutch noise, when the clutch is closed, the general high-speed precision punch will produce noise. This is the intermittent sound generated by the impact caused by the inertial force of the slider and the connecting rod during the reciprocating operation and the centrifugal force of the rotating mass of the crankshaft. The main factors that generate clutch noise are: the magnitude of the impulse received when the clutch is closed, which depends on the speed of the impact speed of the punch under a certain mass; it is also related to the stiffness and damping characteristics of the contact material itself.

These mechanical noises have little effect on the stamping accuracy for high-speed precision punching machines with sufficient tonnage. Therefore, we call on our customers to choose a good punch brand with low noise and stable performance when choosing a high-speed precision punch.

Several parts of the high-speed precision punching machine that generate noise have been sorted out for you, and I hope it can help you! In short, these mechanical noises have little effect on the stamping accuracy for a high-speed precision punching machine with sufficient tonnage. Therefore, we call on our customers to choose a good punch brand with low noise and stable performance when choosing a high-speed precision punch.
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