High-frequency elliptical vibration cutting system and method

Abstract

The invention provides a high-frequency elliptical vibration cutting system and method, and belongs to the field of ultraprecision machining. The high-frequency elliptical vibration cutting system comprises an ultrasonic power source, power amplifiers and an elliptical vibrator which are connected in sequence. The ultrasonic power source is used for generating two paths of high-frequency sine alternating-current electric signals with adjustable amplitudes and frequencies. The power amplifiers are used for receiving the two paths of high-frequency sine alternating-current electric signals, performing gain amplification on the power of the two paths of high-frequency sine alternating-current electric signals, and outputting a bending vibration excitation electric signal and a longitudinal vibration excitation electric signal respectively. The elliptical vibrator is used for converting the received bending vibration excitation electric signal and the received longitudinal vibration excitation electric signal into a bending vibration signal and a longitudinal vibration signal, and realizing high-frequency elliptical vibration under complex vibration of the bending vibration signal and the longitudinal vibration signal. A second-order longitudinal vibration mode and a fourth-order bending vibration mode are consistent in resonant frequency and have two overlapped standing wave nodes, and the standing wave nodes are used as mounting supporting points. The stability of high-frequency elliptical vibration of the elliptical vibrator is improved.

Description

technical field [0001] The invention belongs to the field of ultra-precision machining, and more specifically relates to a high-frequency elliptical vibration cutting system and method. Background technique [0002] In recent years, with the continuous advancement and rapid development of the level of science and technology, in many fields such as optical engineering, aerospace, digital storage, and biomedicine, there is a demand for optical components with complex curved surfaces, high-quality microstructures, and high performance The processing precision and quality required in these fields are becoming more and more demanding. [0003] Most optical components or optical component injection molds are generally made of various difficult-to-machine materials with poor mechanical processing properties, such as hard and brittle materials such as optical glass, silicon carbide, single crystal silicon and ceramics, hard and brittle materials such as tungsten carbide and titanium...

AI Technical Summary

Problems solved by technology

[0006] In view of the defects of the prior art, the object of the present invention is to provide a high-frequency elliptical vibration cutting system and method, aiming to solve the problem that the stagnation point support method adopted by the existing high-frequency elliptical vibration cutting device cannot provide reliable support for the elliptical vibrator. support, resulting in poor overall stability of the vibrator

Images