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 guiding column, a fixing piece and a rotating mechanism. A first concave part is arranged on the side wall of the guiding column. The first concave part surrounds the guiding column with the axis of the guiding column as the center, and is matched with the outer side wall of a pipe. The fixing piece is used for fixing the pipe to the guiding column. The rotating mechanism comprises a drive piece and an abutting piece. The abutting piece is provided with a second concave part opposite to the first concave part, and the second concave part is matched with the outer side wall of the pipe. The drive piece is used for driving the abutting piece to move along the first concave part of the guiding column. The clamping end, namely the fixing piece of the pipe is in a fixed state, a bending forming mechanism, namely the rotating mechanism is in a dynamic change for the pipe to be gradually bent, and the phenomenon that due to the fact that the clamping end of the pipe is subjected to large acting force for a long time, the end portion of the pipe is fractured and damaged can be avoided. Compared with a bending machine in the prior art, the quality of a bent pipe obtained through the pipe bending machine and the pipe bending method is higher.

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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