Ultrasonic spindle and ultrasonic machine tool comprising same

Abstract

The invention discloses an ultrasonic spindle and an ultrasonic machine tool comprising the same. For the ultrasonic spindle, the front end of a push rod is provided with an electric guide head, and adetachable sleeve body is internally provided with a conductive adapter, so that when the conductive adapter needs to be repaired or replaced, the sleeve body needs to be disassembled only to separately repair or replace the conductive adapter and then is installed on the push rod, and operation is simple and convenient; an electric wire is connected to the electric conduction head, and repeateddisassembly and assembly can be realized without being affected by the electric wire, so that the maintenance cost of the ultrasonic spindle can be effectively lowered; and meanwhile, for the ultrasonic spindle, by arranging an electrical connector at the rear end of a knife handle body and the conductive adapter in the sleeve body, the contact electrical connection part between an ultrasonic knife handle and a rotating shaft is located in the ultrasonic knife handle or the rotating shaft rather than being exposed at a gap between the ultrasonic knife handle and the rotating shaft, so that theelectric leakage phenomenon is capable of being avoided, and the potential safety hazard is eliminated.

Description

technical field [0001] The invention relates to the technical field of ultrasonic machining, in particular to an ultrasonic spindle and an ultrasonic machine tool including the same. Background technique [0002] Introducing a high-frequency vibration machining mechanism in the process of machining operations can not only improve the surface roughness of the cutting surface and improve machining accuracy, but also reduce cutting resistance and increase the life of the tool, so it is gradually widely used. [0003] The existing ultrasonic spindle is usually composed of a seat body, a rotating shaft and an ultrasonic tool handle. The rotating shaft is erected in the base body, and a sleeve hole is provided at the lower end, and a power connector is provided in the sleeve hole, and the conductive ring piece of the power connector is electrically connected with the external power supply through a wire; the ultrasonic handle is provided with a sleeve corresponding to the sleeve h...

AI Technical Summary

Problems solved by technology

[0004] 1. The power connector is located in the sleeve hole, which is difficult to disassemble and inconvenient for maintenance and replacement;

[0005] 2. The wire connected to the external power supply is fixed on the conductive ring of the power connector, so that when the power connector is disassembled, the wire can only be torn off, and repeated disassembly and assembly cannot be realized;

[0006] 3. The conductive ring and the conductive insert are electrically connected in the form of a straight sleeve, which is difficult to align and requires high alignment accuracy;

[0007] 4. The shape of the conductive ring and the conductive insert is quite thin. During the plugging process of the power plug and the power connector, the two must be more accurately aligned. If the position is slightly deviated, the conductive ring or the conductive insert Easily damaged by abrasion or bending

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