Fan type metal corrugated pipe plane bending device

Abstract

The invention relates to a fan type metal corrugated pipe plane bending device. The fan type metal corrugated pipe plane bending device is composed of a bending system, a fixing system and a shaping system. According to the fan type metal corrugated pipe plane bending device, by means of cooperation of all part elements of a supporting system of the fan type metal corrugated pipe plane bending device, the fan type metal corrugated pipe plane bending device can be rapidly installed and arranged, then a metal corrugated pipe is fixed utilizing a main arm and a subsidiary arm of the fan type metal corrugated pipe plane bending device, whereafter, the metal corrugated pipe is bent into a corresponding required circular arc shape utilizing a device interdevice pendulum, and finally, the circular arc form of the metal corrugated pipe can be maintained and strengthened utilizing a shaping rod of the fan type metal corrugated pipe plane bending device until the pipe material linetype meets thetest requirements. By means of the fan type metal corrugated pipe plane bending device, the problem that a pipe material sample cannot be bent accurately when leakage resistant performance detectionis performed on the bent metal corrugated pipe is solved, furthermore, the fan type metal corrugated pipe plane bending device is ingenious in construction and easy to operate, operations can be finished by one single people, the bent metal corrugated pipe circular arc sample has the advantages of being standard in linetype, even in force bearing, free of stress concentration and the like, and thefan type metal corrugated pipe plane bending device has quite high application value and promotion prospects.

Description

technical field [0001] The patent of the present invention proposes a fan-type metal bellows plane bending device, which is used for bending and manufacturing metal bellows arc-shaped test pieces in the anti-leakage detection process after metal bellows bending, and belongs to the field of civil engineering. Background technique [0002] The experience of using metal bellows in the engineering field has been nearly 200 years, and with the vigorous development of urban construction in the past half century, various working conditions have given rise to the demand for various metal bellows. For example, the construction industry uses metal bellows as Carriers, for the transmission of various liquids or gases. With the progress of construction and production activities and the progress of industry, the types and quality of metal bellows have been greatly improved. Generally speaking, all kinds of metal bellows today have the advantages of convenient manufacture, low price, goo...

AI Technical Summary

Problems solved by technology

[0005] However, there is still a major pain point in the implementation of the test of leakage resistance of the metal bellows after bending, that is, how to bend the metal bellows accurately and quickly without damaging the pipe body arc shape

Because, first of all, the arc shape of the metal bellows is affected by its own size parameters, which is not fixed and temporary. Therefore, there is currently a lack of relevant equipment to solve this problem. In many cases, it can only rely on the visual inspection of test personnel, Bend tubing specimens on the ulnar side or empirically

This causes two problems, the first and the accuracy of the curved arc

The second is that this manual method can easily cause the stress concentration of the pipe sample at a certain point, so that many pipes will break during the bending process or during the hoisting process after bending

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