Pipe fitting flanging device and pipe fitting flanging method

Abstract

The invention relates to a pipe fitting flanging device and a pipe fitting flanging method. The pipe fitting flanging device comprises a base, two pressure applying parts and a driving part, wherein the two pressure applying parts are each at least partially held in the two ends of a to-be-flanged pipe fitting and can both slide into the to-be-flanged pipe fitting so as to get close to each other,while the driving part is positioned at the position of a guide hole in an inner cavity of the to-be-flanged pipe fitting and is located between the two pressure applying parts. According to device,in a manner that the two pressure applying parts move into the pipe fitting from the two ends of the pipe fitting to further act on the driving part, the driving part breaks out along the guide hole,so that the wall surface, adjacent to the periphery of the guide hole, of a first porous channel is folded towards the interior of a second porous channel so as to realize flanging; by such a manner of flanging from inside to outside, the pressure applying parts can accurately break out from the guide hole without complicated operations, and flanging is more efficient and positioning is accurate;and meanwhile, forces are applied from the two sides by the pressure applying parts, so that the force acting on the driving part is more uniform, flanging is uniform, and cracks are not liable to generate.

Description

technical field [0001] The invention relates to the field of pipe fitting processing, in particular to a pipe fitting flanging device and a pipe fitting flanging method. Background technique [0002] Compression stainless steel pipe is a water supply part for construction. Stainless steel compression pipe fittings have high connection strength, good vibration resistance, convenient and fast construction, good sanitation and environmental protection performance, small pipe flow pressure loss, strong system compatibility and corrosion resistance. It has many advantages such as no scaling, and can effectively prevent pollution caused by decay. It is a healthy barrier for household water and is widely used in many building water pipe fittings. Three-way clamping stainless steel pipe is a relatively common pipe type. Among them, the processing method of the third interface mainly adopts pipe cutting, punching oval hole, flanging, flat head, welding and other processing techniques...

AI Technical Summary

Problems solved by technology

[0005] Although this processing method can produce flanging, it requires cumbersome positioning and connection in the tube, which is time-consuming and labor-intensive; at the same time, the positioning is inaccurate due to the deviation of the pull rod during the pulling process, and the flanging formed in this way is easy. There are unevenness or cracks, etc.

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