Pipe bending machine and pipe bending method

Abstract

The invention discloses a pipe bending machine and a pipe bending method. The pipe bending machine comprises a guide column body, a fixing piece and a rotating mechanism, wherein a first recess is formed in the side wall of the guide column body; the first recess surrounds the guide column body by taking the axis of the guide column body as a center and is matched with the outer side wall of a pipe; the fixing piece is used for fixing the pipe on the guide column body; the rotating mechanism comprises a driving piece and a propping piece; the propping piece is provided with a second recess which is opposite to the first recess and is matched with the outer side wall of the pipe; and the driving piece is used for driving the propping piece to move along the first recess of the guide column body. According to the pipe bending machine, a pipe clamping end, namely the fixing piece, stays in a fixed state, and a bending forming mechanism, namely the rotating mechanism, dynamically changes to gradually bend the pipe, so that the phenomenon that one end part of the pipe is broken and damaged because the pipe clamping end exerts a large acting force on the end part for a long time can be overcome; and compared with a bending machine in the prior art, the pipe bending machine can produce a higher-quality bent pipe.

Description

technical field [0001] The invention relates to the technical field of pipe bending, in particular to a pipe bending machine and a pipe bending method. Background technique [0002] The traditional bending method of bending metal pipes such as copper pipes, aluminum pipes, and iron pipes from straight pipes into curved pipes is: the bending machine is equipped with an arc-shaped channel suitable for the metal pipe, and the metal pipe is clamped by the clamp. The metal tube is gradually moved along the arc channel, and the metal tube is converted from a straight tube to a curved tube during the process of moving along the arc channel. Although the bending method of the metal pipe in the prior art can realize the conversion of the metal pipe from a straight pipe to a bent pipe, the clamping position corresponding to the clamp on the metal pipe is clamped by the clamp for a long time and relatively large during the bending process. Holding force, the clamping part of the metal...

AI Technical Summary

Problems solved by technology

Although the bending method of the metal pipe in the prior art can realize the conversion of the metal pipe from a straight pipe to a bent pipe, the clamping position corresponding to the clamp on the metal pipe is clamped by the clamp for a long time and relatively large during the bending process. Holding force, the clamping part of the metal pipe is extremely prone to breakage and damage, which will affect the product quality of the metal bending pipe

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