Rotary ultrasonic grinding machine tool and application

Abstract

The invention belongs to the technical field of hard and brittle material ultrasonic precision machining, and particularly relates to a rotary ultrasonic grinding machine tool. The rotary ultrasonic grinding machine tool comprises a rotary ultrasonic grinding main shaft, an ultrasonic wave power transmission device, a main shaft clamping and lifting device and a part clamping and feeding device. The rotary ultrasonic grinding main shaft comprises a grinding wheel, wherein the grinding wheel is installed at the output end of an amplitude-change pole, an amplitude-change pole flange is arranged in the middle of the amplitude-change pole and connected with the end face of a hollow sleeve, and a large-end mandrel of the amplitude-change pole stretches into the hollow sleeve and is connected with the output end face of an energy converter. A copper sheet is arranged on the energy converter, a positioning flange is arranged in the middle of the outer surface of the energy converter, the energy converter is connected with the inner surface of the hollow sleeve in a transition fit mode through the positioning flange, the hollow sleeve is installed in a support, and the tail end of the hollow sleeve is connected with an electric main shaft through a coupling. According to the rotary ultrasonic grinding machine tool, the grinding main shaft is directly driven by the electric main shaft, so that the grinding efficiency is improved, the grinding force and the grinding heat are reduced, and the part machining quality is improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic precision machining of hard and brittle materials, and in particular relates to a rotary ultrasonic grinding machine tool and its application. Background technique [0002] Hard and brittle materials such as metal matrix composites, ceramic materials, hard alloys, and semiconductor materials are widely used in aerospace, biomanufacturing, and microelectronics manufacturing because of their excellent mechanical, physical, and chemical properties. However, hard and brittle materials are difficult-to-machine materials, which have problems such as poor machinability, low processing efficiency, poor surface quality, and easy cracks and chipping, resulting in high processing costs, which is not conducive to the promotion and use of these materials. [0003] Rotary ultrasonic grinding technology is an effective composite finishing process for hard and brittle materials. Compared with traditional grin...

AI Technical Summary

Problems solved by technology

The disadvantage is that the route of the ultrasonic excitation of the grinding wheel is long, and the tool handle and the sleeve are assembled structures, which affect the rigidity and precision of the ultrasonic assisted grinding system

And it can only be used as an accessory of the machine tool spindle to expand the processing capacity of the existing machine tool

It cannot be used as the main shaft of a grinding machine to realize ultrasonic grinding of different surface structures of parts

Images