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前言在许多情况下,机械振动被认为是产生噪音、引起机械机构破损、在机械加工中影响加工精度和工件表面光洁度的一个不利因素而加以研究和限制。但是机械振动也有其有力的一面,如机械钟表原理就是应用了摆的振功等时性;此外工程中利用振动原理设计制造的大量振动机械,如振动打桩机、振动造型机、振动清砂机。振动运输机、振动筛等、大大提高了劳动生产率。现在,利用振动进行切削加工已经被认为是机械加工中的一个重要发展方面,可以用以解决难加工材料和普通材料难加工工序中的加工问题。振动机械通常是低频振动,振动频率一般在200HZ 以下,而振幅较大,其振动主要靠机械装置来实现。
Preface In many cases, mechanical vibration is considered and limited as a negative factor that produces noise, causes mechanical damage, and affects machining accuracy and workpiece surface finish in machining. However, the mechanical vibration also has its strong side, such as the principle of mechanical watches is the application of vibratory force isochronous; In addition, the use of vibration principle design and manufacture of a large number of vibration machinery, such as vibration pile driver, vibration molding machine, vibration sand cleaning machine . Vibration conveyor, vibrating screen, etc., greatly improving labor productivity. Cutting with vibration is now considered as an important development in machining and can be used to solve machining problems in difficult-to-machine and difficult-to-process materials. Vibration machinery is usually low-frequency vibration, vibration frequency is generally below 200HZ, while the larger amplitude, the vibration mainly by mechanical means to achieve.