Intelligent-compensating anti-vibration lathe tool and control system thereof

Abstract

The invention discloses an intelligent-compensating anti-vibration lathe tool. The intelligent-compensating anti-vibration lathe tool comprises a cutter body and a cutter head which are independent from each other, wherein an inner cavity is arranged in the cutter body; and the rear end of the cutter head horizontally extends into the inner cavity. The intelligent-compensating anti-vibration lathe tool is characterized in that at least four groups of two-way flexible hinges are fixedly arranged between the two sides of the rear end of the cutter head and the cavity wall of the inner wall, wherein all two-way flexible hinges are symmetrically arranged along the axial center line of the cutter head; and a piezoelectric ceramic driver group which is arranged in the form of a square array is arranged between the rear-end end surface of the cutter head and the cavity wall of the inner wall. The intelligent-compensating anti-vibration lathe tool has the advantages that the cutter head of the lathe tool is controlled to carry out corresponding position compensating in a radial direction of a workpiece by monitoring changes of turning force, so that changes of a turning thickness are within a stable turning range, and regenerated type turning vibration is avoided; the cutter head rotates by a slight angle to carry out multi-direction position compensating to meet needs of different turning occasions; the turning precision and the surface processing quality of products are improved; and the anti-vibration lathe tool is simple in structure, is convenient to operate, and is flexible and variable in use.

Description

technical field [0001] The invention relates to the field of cutting processing, in particular to an intelligent compensation vibration-proof turning tool and a control system thereof. Background technique [0002] In metal cutting, turning is one of the most common processing methods. In turning processing, due to changes in parameters such as spindle speed, cutting depth, and feed rate, chatter is prone to occur during the cutting process. The chatter is a kind of self-excited vibration, among which the regenerative chatter is the most harmful. The regenerative chatter is aroused by the dynamic cutting force generated by the cutting thickness change effect during the machining process. The occurrence of the chatter phenomenon will reduce the machining quality. The surface quality of the workpiece will also cause the machining tool to be scrapped in advance, and at the same time, a lot of noise will be generated during the machining process. Aiming at the chatter phenomen...

AI Technical Summary

Problems solved by technology

The chatter is a kind of self-excited vibration, among which the regenerative chatter is the most harmful. The regenerative chatter is aroused by the dynamic cutting force generated by the cutting thickness change effect during the machining process. The occurrence of the chatter phenomenon will reduce the machining quality. The surface quality of the workpiece will also cause the machining tool to be scrapped in advance, and at the same time, a lot of noise will be generated during the machining process

Aiming at the chatter phenomenon in the turning process, many scholars have studied it and proposed some chatter control methods. Although these chatter control methods can effectively reduce or eliminate chatter, the complexity of the control algorithm leads to Difficult to apply in practice

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