Bending mode supersonic vibration auxiliary cutting device for precision or ultra-precision turning

Abstract

The invention relates to the technical field of precision or ultra-precision machining, provides a supersonic vibration machining device and mainly consists of a supersonic vibration unit, a shell and a tool. Two node positions of the supersonic vibration unit are fastened by the shell of a shrink ring structure; the length of the shell is very easy to adjust, and an inner annular boss of the shell is fastened at the node positions of the supersonic vibration unit all along. The working frequency of the device is 38+ / -0.5KHz, so that noise pollution cannot be produced; the machining efficiency is high; moreover, assembly links of the device are few, and a blade is convenient to install and uninstall; meanwhile, the device is high in rigidity and good in airtightness. The device provided by the invention has a remarkable effect in the aspects of machining of materials which are hard to machine and cutting of low-rigidity parts, such as slender axles, thin-walled workpieces and the like; a cutting force, the cutting temperature, tool wear and the material cutting deformation of workpeices can be obviously reduced; the quality of finished surfaces and the accuracy of forms and positions of the workpieces are improved; subsequent processes are reduced, and further, the machining efficiency and the economical efficiency are improved.

Description

technical field [0001] The invention relates to a processing device for difficult-to-machine materials, thin-walled parts and slender shaft parts in precision or ultra-precision machining, in particular to a bending-mode ultrasonic vibration-assisted cutting device for precision or ultra-precision turning. Background technique [0002] Ultrasonic vibration cutting was first proposed by Japanese scholars. It is to add ultrasonic vibration to the tool, so that the original continuous cutting process becomes a high-frequency intermittent cutting process. Ultrasonic vibration cutting has the advantages of small cutting force, low cutting temperature, no built-up edge and suppression of cutting chatter, which greatly improves the surface quality and shape accuracy of the processed parts and prolongs the service life of the tool. It has significant advantages in the processing of difficult-to-machine materials such as superalloys, titanium alloys, composite materials and ceramics,...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of cutting various difficult-to-machine materials and parts with weak rigidity such as slender shafts and thin-walled parts in the fields of aviation, aerospace and military industry, and to provide a bending mode ultrasonic vibration for precision or ultra-precision turning. auxiliary cutting device

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