RU205447U1 - TOOL FOR INSTALLATIONS FOR ULTRASONIC STRENGTHENING TREATMENT OF METAL PARTS - Google Patents

Abstract

The utility model relates to mechanical engineering, in particular to devices for ultrasonic hardening of metal parts. The technical result of the claimed solution, which consists in the possibility of processing the surfaces of inner diameters, walls and grooves, is achieved due to the presence in an ultrasonic instrument for ultrasonic hardening of metal parts, which is a concentrator with a working part rigidly fixed on it, which bends with a certain radius R and has a milled edge for attaching a solid carbide tip to it by soldering with a working part in the form of a half ball to ensure an even distribution of the contact patch around the center of impact. 2 ill.

Description

The utility model relates to mechanical engineering, in particular to devices for ultrasonic hardening of metal parts.

There is a known method of ultrasonic hardening-finishing processing and a device for its implementation, which is a concentrator with a working part rigidly fixed on it in the form of a ball made of hard alloy, steel ШХ15 (HRC 64-66) (AC No. SU 1199598А, IPC В24В39 / 04, publ . 23.12.1985, bul. No. 47).

The closest technical solution is an ultrasonic instrument for ultrasonic hardening of metal parts (Patent No. RU 200671, MPK В24В39 / 00, publ. 05.11.2020, bul. No. 31), which is a concentrator with a working part rigidly fixed to it, made in the form metal cylindrical rod of variable cross-section. The first portion of the ultrasonic instrument is threaded for attaching the ultrasonic instrument to the adapter of the magnetostrictive transducer. Further, the ultrasonic tool has a cylindrical section, on which there are two milled flats for a wrench, which, for convenience, is used to screw the ultrasonic tool into the adapter of the magnetostrictive transducer.

The disadvantage of the known technical solutions for the same purpose is the impossibility of processing internal surfaces, for example, the internal diameters of pipes.

The technical result of the proposed technical solution of the invention is the ability to process surfaces of internal diameters, walls and grooves.

The specified technical result is achieved by changing the design of the outlet end of the concentrator, namely by rounding the thin part of the indenter and attaching to it, by soldering, a hard-alloy tip with a working part in the form of half a ball to ensure uniform distribution of the contact patch around the center of impact.

The implementation of the distinctive features of the utility model determines a new technical result: the possibility of processing internal surfaces.

The essence of the utility model is illustrated by diagrams, where

in fig. 1 is a side view of the ultrasonic instrument;

in fig. 2 is a top view of an ultrasonic instrument.

Ultrasonic instrument (Fig. 1, 2), which is a concentrator with a rigidly fixed working part, made in the form of a metal cylindrical rod of variable cross-section. One of the sections of the ultrasonic instrument has a thread for attaching the ultrasonic instrument to the adapter of the magnetostrictive transducer. Further, the ultrasonic instrument has a cylindrical section with a diameter of 2D, on which there are two milled flats for a wrench, which, for convenience, is used to screw the ultrasonic instrument into the adapter of the magnetostrictive transducer. Further, the section from a cylindrical one is transformed into a cone, narrowing the section of the tool to a diameter D located at a length of 1 / 4L from the end, then again into a cylindrical section, with a diameter D for 1 / 4L and again into a cone, narrowing the section of the tool to a diameter d at a distance of still 1 / 4L, which is bent with a certain radius R. On the working part of the ultrasonic tool at the output end, a flat surface is milled for attaching a carbide tip with a working part in the form of a half ball to it by brass soldering to ensure uniform distribution of the contact patch around the center of impact.

The inventive ultrasonic instrument works as follows: the threaded tip of the ultrasonic instrument is screwed manually into the adapter of the magnetostrictive transducer before starting work and tightened with a wrench using two flats on the cylindrical part of the ultrasonic instrument. After turning on the ultrasonic generator, the magnetostrictive transducer (for example, PMS 15A-18) begins to generate mechanical vibrations, which are transmitted to the ultrasonic instrument through the threaded section and the inlet end. In an ultrasonic instrument, the vibration amplitude increases and mechanical vibrations with an ultrasonic frequency and an increased amplitude appear at the output end with a soldered half of the ball. The ultrasonic tool is pressed against the workpiece by a static force P _st and then the treatment is carried out by blows with an ultrasonic frequency.

The proposed ultrasonic tool for ultrasonic hardening processing of metal parts allows processing of internal surfaces, such as: internal diameters of pipes, walls of bodies and grooves.

Claims (1)

An ultrasonic instrument for ultrasonic hardening processing of metal parts, which is a concentrator with a working part rigidly fixed to it, made in the form of a metal cylindrical rod of variable cross-section, characterized in that the working part of the ultrasonic instrument passes into a cone that narrows the cross-section of the tool to a diameter d, at a distance 1 / 4L, which bends to a certain radius R and has a milled edge for soldering a carbide tip with a half-ball tip to ensure an even distribution of the contact patch around the center of impact.

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