Die head for conveniently cutting off ends of thin-wall copper pipes, and cutting method

Abstract

The invention relates to a die head for conveniently cutting off ends of thin-wall copper pipes. The die head comprises a pipe fitting body. The pipe fitting body comprises a sleeve connection end anda limiting end. A plurality of axial notches are formed in the pipe wall of the sleeve connection end. The multiple axial notches are annularly and evenly distributed along the pipe wall of the pipefitting body with the axis of the pipe fitting body as the center. A plurality of annular grooves are formed in the periphery of the pipe wall of the sleeve connection end. The invention further relates to a cutting method for the thin-wall copper pipes, and according to the method, the die head for conveniently cutting off the ends of thin-wall copper pipes is adopted. The cutting method comprises the steps that firstly, before one end of one thin-wall copper pipe is cut off, the sleeve connection end of the die head is connected to the end of the thin-wall copper pipe in a sleeving manner inadvance, so that the end of the thin-wall copper pipe abuts against an annular protrusion on the inner side of the pipe wall of the limiting end; and then, as required, a cutter is enabled to align with the annular groove on the corresponding scale mark so as to cut off the die head and the end of the thin-wall copper pipe. The deformation of the end of the copper pipe is reduced, and it is facilitated for subsequent segmentation cutting of the copper pipe.

Description

technical field [0001] The invention relates to a die head and a cutting method for cutting the end of a thin-walled copper pipe. Background technique [0002] In the prior art, the copper pipe is usually a long pipe during production, and the copper pipe needs to be cut into sections when used; the copper pipe with a thinner wall thickness (1-2mm) and a larger diameter (greater than 100mm) is transported Among them, the end of the copper pipe is very easy to deform. Before the copper pipe is cut into sections, it is usually necessary to cut off the end of the copper pipe. The length of the cut depends on the length of deformation; When the end of the wall copper pipe is cut, the end of the copper pipe is easily deformed. Even if the original end is cut off, the new end formed is still a deformed substandard product. Contents of the invention [0003] The present invention aims at the deficiencies in the above-mentioned prior art, and provides a die head for cutting the e...

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Problems solved by technology

[0002] In the prior art, the copper pipe is usually a long pipe during production, and the copper pipe needs to be cut into sections when used; the copper pipe with a thin wall thickness (1-2mm) and a large diameter (greater than 100mm) is transported Among them, the end of the copper pipe is very easy to deform. Before the copper pipe is cut into sections, it is usually necessary to cut off the end of the copper pipe. The length of the cut depends on the deformation length; When the end of the wall copper pipe is cut, the end of the copper pipe is easily deformed. Even if the original end is cut off, the new end formed is still a deformed and unqualified product

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