A high frequency elliptical vibration cutting system and method

Abstract

The invention provides a high-frequency elliptical vibration cutting system and method, belonging to the field of ultra-precision machining, including an ultrasonic power supply, a power amplifier and an elliptical vibrator connected in sequence; High-frequency sinusoidal alternating current signal; the power amplifier is used to receive and amplify the power of two high-frequency sinusoidal alternating current signals, and output the bending vibration excitation electrical signal and the longitudinal vibration excitation electrical signal respectively; the elliptical vibrator is used to convert the received bending vibration The excitation electrical signal and the longitudinal vibration excitation electrical signal are converted into a bending vibration signal and a longitudinal vibration signal, and high-frequency elliptical vibration is realized under the composite vibration of the bending vibration signal and the longitudinal vibration signal; among them, the second-order longitudinal vibration mode and the fourth-order bending The resonant frequency of the vibration mode is the same, and there are two overlapping standing wave nodes; and the standing wave nodes are used as installation support points. The invention improves the stability of the high-frequency elliptical vibration of the elliptical vibrator.

Description

technical field [0001] The invention belongs to the field of ultra-precision machining, and more particularly, relates to a high-frequency elliptical vibration cutting system and method. Background technique [0002] In recent years, with the continuous progress and rapid development 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 service performance. It is getting bigger and bigger, so the machining accuracy 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 machinability, 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 t...

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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

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