Ultrasonic inserting cutting tool for processing curve outline of honeycomb core

Abstract

The invention discloses an ultrasonic inserting cutting tool for processing a curve outline of a honeycomb core. The ultrasonic inserting cutting tool comprises a threaded section, a rigidity improving block, a trapezoid-like shaped platform transition block and a thin-sheet shaped open type tool body, wherein axes of the threaded section, the rigidity improving block, the trapezoid-like shaped platform transition block and the thin-sheet shaped open type tool body are positioned on an axis of the ultrasonic inserting cutting tool for processing the curve outline of the honeycomb core. According to the ultrasonic inserting cutting tool for processing the curve outline of the honeycomb core, the curve outline of the honeycomb core material is inserted and cut under ultrasonic vibration effect; the honeycomb core material can be smoothly cut through a circular arc shaped cutting bottom edge under the ultrasonic effect, thus the damage of the honeycomb core material in processing can be decreased, and the processing rigidity of the rest materials can be improved; in addition, the friction between the circular arc shaped cutting bottom edge and the processing surface of the honeycomb core is reduced by the ultrasonic effect, so that the processing defects of the curve outline of the honeycomb core can be reduced; the abrasion of the tool is reduced, and as a result, the service life of the tool is prolonged; and the curve outline of the honeycomb core is processed with high quality.

Description

technical field [0001] The invention relates to a honeycomb core processing tool, in particular to an ultrasonic plunge-cutting tool for processing the honeycomb core curve profile. Background technique [0002] Because of its low density, light weight, high specific strength and specific stiffness, and strong impact resistance, honeycomb materials are widely used as the core material of sandwich composite materials in many fields such as aerospace and high-speed trains. It is necessary to process a curved profile on the honeycomb core. Since the honeycomb core material is a weakly rigid porous material formed by bonding and stretching the honeycomb core paper, the material deforms greatly during the cutting and forming process, especially for curved contour processing, the force and deformation of the material during the cutting process are complex, which is A difficult problem in honeycomb core processing. [0003] According to the processing requirements of the honeycom...

AI Technical Summary

Problems solved by technology

Although the straight-edged pointed knives and disc knives currently used can realize the ultrasonic cutting of the straight contour of the honeycomb core material, there are still many difficulties in processing the curved contour: when the straight-edged sharp knife and the disc knife are processing the curved contour, it is necessary to always ensure that the cutting edge Consistent with the tangent direction of the curve profile, so the angle and position of the tool needs to be adjusted in real time

Since the knife has a certain width, the cutting edge on the side that does not participate in the cutting will squeeze and scratch the processed honeycomb core material during the adjustment process, resulting in deformation and crushing of the honeycomb core.

However, the cutting edge on one side participating in the cutting will simultaneously cut the honeycomb wall at different positions in space, especially when cutting a curved profile, the inconsistency of the cutting area of ​​the tool in the horizontal and vertical directions will easily lead to overcutting during the cutting process. Phenomenon

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