In-situ curved surface ultrasonic impact equipment and impact machining method thereof

Abstract

The invention relates to in-situ curved surface ultrasonic impact equipment and an impact machining method thereof. The in-situ curved surface ultrasonic impact equipment comprises an ultrasonic oscillator, a reflecting cavity, impact bullets and a plurality of stretching and contracting columns, wherein the upper end of the ultrasonic oscillator is fixedly connected with the reflecting cavity, anupper end mouth of the reflecting cavity is open, a ring of the stretching and contracting columns are arranged at the edge of the upper end mouth of the reflecting cavity, the lower end of each stretching and contracting column is fastened with the edge of the upper end mouth of the reflecting cavity together, every two adjacent stretching and contracting columns are tangent to each other, all the stretching and contracting columns perform surrounding to form a tubular body, each stretching and contracting column is composed of a screw column, a lower stretching and contracting tube and an upper stretching and contracting tube, each lower stretching and contracting tube is one tube body provided with a tube bottom and one open upper end mouth, each upper stretching and contracting tube is one tube body provided with a tube top and one open lower end mouth, the upper ends of the screw columns are fixedly connected with the tube bottoms of the lower stretching and contracting tubes, the upper stretching and contracting tubes are slidably connected with the lower stretching and contracting tubes, and springs are arranged between the lower stretching and contracting tubes and the upper stretching and contracting tubes. The in-situ curved surface ultrasonic impact equipment and the impact machining method thereof can be suitable for impact machining of curved surfaces or irregularplane parts, part disassembling is not needed, and the machining is performed flexibly.

Description

[0001] Technical field: [0002] The invention relates to ultrasonic impact surface strengthening treatment equipment, in particular to an in-situ curved surface ultrasonic impact equipment and an impact processing method thereof. [0003] Background technique: [0004] With the continuous development of the machinery industry, the requirements for the comprehensive performance of materials are getting higher and higher. Fatigue failure is one of the main causes of failure of mechanical parts. When the mechanical parts reach the fatigue limit, they will crack or break completely suddenly, which is easy to cause major accidents. According to statistics, more than 80% of the failures of mechanical parts are fatigue failures. At the same time, after the mechanical parts are processed by machining, heat treatment, strengthening technology and other technologies, there will be residual stress on the surface of the material. Due to the introduction of residual stress, the parts are...

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Problems solved by technology

[0008] The object of the present invention is to provide an in-situ curved surface ultrasonic impact equipment, which is used to solve the problem that the existing ultrasonic impact equipment is only limited to processing parts whose surface is plane, and has poor flexibility. Another object is to provide an impact processing method for this in-situ curved surface ultrasonic impact device

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