External Vibration Assisted Milling Method

Abstract

The invention discloses an exciting vibration-aided milling method, which comprises the following steps: a workpiece to be processed is fixed on a vertical vibration plate, a milling cutter is adjusted to a processing position, then a four-channel signal-generator is turned on , an electric signal generated by the four-channel signal-generator is transmitted to a four-channel power amplifier, after the electric signal is amplified by the four-channel power amplifier, and then is output in a vibrating table, the electric signal is received by the vibrating table, transverse single-direction vibration, vertical single-direction vibration, and transverse and vertical bidirectional vibration are realized by a vertical piezoelectric ceramic oscillator and a transverse piezoelectric ceramic oscillator which are arranged in the vibrating table, the workpiece to be processed is driven for one-dimensional or two-dimensional mechanical oscillation, and exciting vibration-aided milling can be carried out on the workpiece. According to the invention, vibration direction precision during the processing step can be greatly increased, stability and processing precision during the vibration processing step can be effectively guaranteed, unidirectional or bidirectional vibration processing can be realized, processing application scope is developed, and processing efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of cutting processing, in particular to an external vibration-assisted milling processing method. Background technique [0002] Vibration-assisted cutting processing is a new type of non-traditional special cutting processing method. It is based on conventional cutting processing methods and applies external mechanical vibrations of appropriate direction, certain frequency and amplitude to the tool (or workpiece) to A compound cutting method that improves its cutting performance. During the vibration-assisted cutting process, due to the application of external vibration, the tool and the workpiece are in intermittent contact, so that the traditional cutting mode has undergone fundamental changes, and many excellent cutting effects that cannot be obtained by ordinary cutting, such as small cutting force , reduced cutting heat, high workpiece surface quality, easy chip disposal, improved tool durability, stab...

AI Technical Summary

Problems solved by technology

However, due to the complex relative motion of the tool and the workpiece in milling, it is difficult to apply externally assisted vibration, and there are few reports on the research of vibration cutting technology in milling.

The patent document with the publication number: CN202428012U discloses a device for ultrasonic vibration-assisted milling surface micro-modelling. This patent discloses the application of ultrasonic vibration in the technical field of milling, but the technical content disclosed in this patent is to use a single The method of fixed connection of the body can only achieve one-way vibration, and the vibration frequency cannot be adjusted. This method is not only unstable in the vibration process, but also cannot guarantee the machining accuracy.

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