一、振动装置的类型与选择 低频振动钻削能改善工艺条件,提高加工质量,但需要外加振动装置。这种振动装置分为自激振动装置和强迫振动装置。强迫振动装置可以根据实际加工需要,在一定范围内随意改变振动参数,而且它受切削过程影响较小,在切削过程中容易稳定维持振动参数,所以应用广泛。强迫振动装置的形式有机械、电磁、电气、气动和液压等基本形式,也可以组成机械-液压,电气-液压等组合形式的振动装置。 机械式振动装置结构简单,造价低廉,维护和使用方便,切削过程中振动参数受负载影响较小。人们大都愿采用这种类型。目前应用较多的是偏心式、曲柄-滑 First, the type and choice of vibration device Low-frequency vibration drilling can improve the process conditions and improve the processing quality, but the need for external vibration device. This vibration device is divided into self-excited vibration device and forced vibration device. Forced vibration device can be based on actual processing needs, within a certain range of random vibration parameters change, and it is less affected by the cutting process, the cutting process is easy to maintain stable vibration parameters, so widely used. Forced vibration device in the form of mechanical, electromagnetic, electrical, pneumatic and hydraulic and other basic forms, can also be composed of mechanical - hydraulic, electrical - hydraulic combination of the form of vibration device. The mechanical vibration device has the advantages of simple structure, low cost, convenient maintenance and use, and less influence on the vibration parameters during cutting. Most people are willing to adopt this type. Currently used more eccentric, crank - slip