Staggered spoke type stretchable tool for friction stir welding and adjusting method of tool

Abstract

The invention discloses a staggered spoke type stretchable tool for friction stir welding. The staggered spoke type stretchable tool comprises a bearing, a bearing sleeve, a first supporting ring, a second supporting ring, a third supporting ring and a plurality of supporting plates, the bearing is used for connecting the spoke type tool with a cross-shaped operation machine type dislodgement machine, the bearing sleeve is rotationally arranged on the bearing in a sleeving manner, the first supporting ring is annular, an inner ring fixing sleeve is arranged on the bearing sleeve and can rotatealong with the bearing sleeve, the multiple first air cylinder assemblies are arranged on the outer ring of the first supporting ring and distributed on the outer side of the first supporting ring ina circumferential array equal-interval manner, the second supporting ring is annular, is concentric with the first supporting ring and is arranged on the outer side of the first supporting ring, a plurality of round holes are formed in the second supporting ring, air cylinders can penetrate the round holes, the supporting plates are arc-shaped plates, and the first air cylinder assemblies can bedetached to be far away from one end of the third supporting ring. The invention further discloses an adjusting method of the staggered spoke type stretchable tool for friction stir welding.

Description

technical field [0001] The present invention relates to a welding tool, in particular to a staggered spoke type telescopic tool for friction stir welding and an adjustment method thereof. Background technique [0002] Natural gas and petroleum, coal and their processed products are interchangeable in many application fields, mainly used in urban residential gas, transportation, power generation, and chemical industries. As an important logistics equipment, tank trucks are widely used in the automobile transportation industry. Friction stir welding (FSW) is a new solid-state welding method that has recently emerged. Since its appearance, it has been rapidly developed and promoted. In practical engineering applications, friction stir welding has outstanding process advantages such as large single-pass welding thickness, low defect occurrence rate, small welding residual stress and deformation, high welding efficiency, energy saving and consumption reduction, and green weldin...

AI Technical Summary

Problems solved by technology

[0005] In the field of friction stir welding technology, friction stir welding is currently mostly used for splicing longitudinal seams of cylindrical vessels and a small part for longitudinal seam welding of cylindrical joints. It is not widely used for butt joints of cylindrical joints. Friction stir welding tooling for joint and ring seam welding is not yet perfect

In addition, there is currently a circle supporting mechanism, which can be applied to the inner circle of the cylinder joint or the tooling of the conventional welding method, but this structure is insufficient for friction stir welding, because after the circle supporting mechanism is stretched, the gap between the supporting plates There is a gap between them, making the friction stir welding process unstable

In addition, most of the tooling is currently designed and manufactured for a certain product or a certain process. If the size or shape of the product changes, the tooling needs to be redesigned, and there is a problem that the applicable range of the tooling is small.

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