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Multi-needle type impacting head for ultrasonic impacting gun and design method of impacting head

A technology of ultrasonic impact gun and impact head, which is applied in spray guns, metal processing equipment, explosion generating devices, etc., can solve the problems of low efficiency in the shot peening process, reduce the number of round trips and residence time, improve shot peening efficiency, and improve The effect of stress corrosion cracking

Active Publication Date: 2013-08-28
天津益普科技发展有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In the past, the output end and the impact head of the ultrasonic shot peening tool were circular, which was limited by the geometric shape, and the efficiency of the shot peening process was low, which showed certain limitations in the actual application process.

Method used

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  • Multi-needle type impacting head for ultrasonic impacting gun and design method of impacting head
  • Multi-needle type impacting head for ultrasonic impacting gun and design method of impacting head
  • Multi-needle type impacting head for ultrasonic impacting gun and design method of impacting head

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Embodiment Construction

[0029] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] as attached figure 1 As shown in -6, the multi-needle impact head for the ultrasonic impact gun of the present invention includes an impact needle 1, an impact needle cover plate 2, and a horn end face 3. The end of the end surface of the horn is directly connected with the thread of the horn, and the end surface is provided with an impact needle, and the impact needle passes through the pinhole arranged on the impact needle cover plate, and the impact needle cover plate and the ultrasonic impact gun The gun body is fixedly connected. A moderate movable gap is reserved between the impact needle and the end face of the horn to ensure the normal vibration of the impact needle. The assembled multi-needle impact head is placed on the front end of the ultrasonic impact gun, and the workpiece to be treated...

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PUM

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Abstract

The invention discloses a multi-needle type impacting head for an ultrasonic impacting gun and a design method of the impacting head. The multi-needle type impacting head is composed of an amplitude-changing rod end surface, an impacting needle cover plate and impacting needles, wherein hole arrays in rows are filled in effective regions of the amplitude-changing rod end surface and an impacting needle cover. The multi-needle type impacting head and the design method thereof provided by the invention have the advantages that by virtue of the multiple impacting needles, compared with an existing impacting head, the work efficiency is improved by 300%-400%, the impact strength is improved by about 5%, and the problems that a welding structure cracks due to stress corrosion, is unstable and deforms, the fatigue service life of the welding structure is shortened and the like are effectively alleviated.

Description

technical field [0001] The invention relates to the technical field of metal surface nanotechnology, more specifically, to a multi-needle impact head for an ultrasonic impact (shot peening) gun and its design method, which can be widely used in stress corrosion resistance, deformation correction, and residual stress elimination , metal surface nanotechnology and other fields. Background technique [0002] In the process of metal processing, metal welding is a commonly used processing method in the processing process. After the metal materials are welded according to the shape and size, due to the stress concentration of the weld toe and the residual tensile stress and other factors, the fatigue performance of the welded joint is usually reduced. Far lower than that of basic metals, welding fatigue cracks often start at the weld toe of the joint, which leads to frequent accidents of large welded structural parts such as offshore oil production platforms, bridges, locomotives,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C5/02B24C1/10
CPCB21D31/06B24C1/10B24C5/02C21D10/00
Inventor 王东坡吴良晨张涛柳阳黄超
Owner 天津益普科技发展有限公司
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