Analysis of punch press noise sources

In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, Analysis of punch press noise sources In this case cnc ring machine, In this case, In this case, In this case, In this case, Punch in the course of the operation will have a small or large noise punching machine for sale, the following to do a punch noise source analysis, punching noise can be divided into noon load noise and load noise. No-load noise is the no-load operation noise, which includes motor noise, the noise generated by the working mechanism gap, clutch and gear impact noise. Load noise is the noise generated when punching, in the same punch with different stamping process (such as punching, drawing, bending) processing of the same materials produced by the noise inconsistency. In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, First, the load noise In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, The causes of load operation noise are caused by tool and workpiece or stripper plate and blank impact, stamping process of twisting and punching. The punching and shearing noise are the biggest in the stamping process. Twisting noise. Torsional noise of the same type of punch press parts with the thickness, hardness, geometry, hammering speed, die clearance and other factors, the noise increases with these increases. Punch work, the punch and the plate and the discharge plate and blank impact impact greatly enhanced, with the impact of the impact speed also increased.

The collision noise and the subsequent material fracture sound can be measured separately, and this measurement method has been implemented. In the same punch, punching thick, hard material than the punching thin, soft material noise. For thick ductile sheets, the impact noise is the same as the fracture sound. In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case steel structural drilling machine, In this case, In this case, In this case, In this case, In this case, In this case, Second, no-load noise In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, In this case, Motor noise. As a power source, the noise generated when the motor work, including motor windings of electromagnetic noise, aerodynamic noise and mechanical noise. Sound pressure level of motor noise and motor power, speed and so on. Motor electromagnetic noise, mainly by the interaction of alternating electromagnetic field excitation of the rotor and stator vibration generated. Electromagnetic noise is generally high-frequency noise. The aerodynamic noise of the motor is mainly the cooling fan noise, which is the main noise source for a considerable number of motors. Mechanical noise mainly consists of some rotating parts of the unbalanced force excitation of noise and vibration generated when some parts of the noise.

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