Novel waveguide tube inner wall magnetic grinding ultra-precision machining device and method

Abstract

The invention discloses a novel waveguide tube inner wall magnetic grinding ultra-precision machining device and method. The method comprises the following steps: S1, a magnetic abrasive particle material is selected so that magnetic abrasive particles are not affected by an electric field of electromagnetic waves when magnetic grinding machining is conducted on the inner wall of a waveguide tube, and are only affected by the combined effect of a magnetic field of the electromagnetic waves and a magnetic field of an external magnetic pole; S2, a waveguide tube to be machined is clamped on a part holder to be fixed; S3, the magnetic abrasive particles are added into the waveguide tube; S4, the electromagnetic waves are introduced from the left end of the waveguide tube; and S5, the external magnetic pole is rotatably arranged at the outer side of the waveguide tube, and the external magnetic pole moves in the axial direction of the waveguide tube while rotating with the waveguide tube as the axis. According to the device and method, the magnetic abrasive particles conduct finishing cut on the inner wall of the waveguide tube under the combined effect of the magnetic field of the electromagnetic waves and the magnetic field of the external magnetic pole, compared with the traditional technology which only depends on the effect of the external magnetic pole, the device is simplified, the space limitation degree and the cost of the device are reduced, and the device and method can be applied to the technical field of magnetic grinding.

Description

Technical field [0001] The present invention belongs to the technical field of magnetic abrasive, specifically, the inner wall of the waveguide to a novel magnetic abrasive ultra precision machining apparatus and method. Background technique [0002] In recent decades the rise of magnetic grinding technology is a more promising finishing technology, it has high precision, high surface quality, low cost and easy to realize the advantages of automatic control. Surface can overcome the conventional processing method using a magnetic abrasive stream conduit limitations and shortcomings, may be processed almost any non-conductive material surface, and to obtain excellent working effect. Using magnetic abrasive can easily be processed on a single surface of small parts, may be processed simultaneously a plurality of parts, it is possible to obtain a satisfactory surface quality is small in the case of removal ratio. [0003] A waveguide for transmitting ultrahigh frequency electromagne...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a novel waveguide inner wall magnetic grinding ultra-precision machining device, which is used to solve the problem that the magnetic field force required by the non-magnetic grinding particles inside the waveguide is only provided by the permanent magnet outside the waveguide during the magnetic grinding process of the waveguide. The structure of the processing equipment is relatively complex and the volume is large. If the space is limited, it will cause some inconvenience and the problem of high equipment investment cost.

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