Pipe fitting outer convex point forming device

Abstract

The invention provides a pipe fitting protruding point forming device which comprises a bottom die and a clamping die. The bottom die is used for enabling a pipe fitting to be inserted in and enabling protruding points to be stamped. The clamping die is provided with a placing cavity which is used for being matched with the pipe fitting, and a demising groove which allows the protruding points to be molded is formed in the side wall of the placing cavity. According to the pipe fitting protruding point forming device, the clamping die is additionally arranged, the pipe fitting is placed in the placing cavity of the clamping die, and the demising groove which is formed in the side wall of the placing cavity provides existing space for the protruding points of the pipe fitting. In the stamping process of the protruding points on the bottom die, the side wall of the placing cavity restrains the pipe fitting, thus, the pipe orifice deformation of the pipe fitting can be reduced, the pipe fitting can be normally assembled, a straightening process is of no need, and further the production efficiency of the pipe fitting with the protruding points is improved. Meanwhile, the demising groove can have a limiting effect on the protruding points on the pipe fitting, the uniformity of the protruding points of the pipe fitting is improved, and therefore the quality of the entire pipe fitting is improved.

Description

technical field [0001] The invention relates to the technical field of connection of pipe fittings, in particular to a device for forming external bumps of pipe fittings. Background technique [0002] In the air-conditioning industry, there are certain requirements for the connection of pipe fittings, especially for the connection of pipe fittings with different pipe diameters, which requires a certain length of overlapping parts after the pipe fittings are assembled. [0003] At present, there are two ways to assemble pipe fittings with different diameters: one is to shrink the pipe fittings with large diameters, or to expand the pipe fittings with small diameters; Bumping on the top, among which, the way of punching the outer bumps is widely used. To make external convex points on the pipe fittings, it is usually obtained by inserting the pipe fittings into a bottom mold with external convex points and hitting the bottom mold with a rubber hammer. [0004] However, in th...

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Problems solved by technology

[0004] However, in the knocking process, it is difficult to make the knocking position uniform, and it is easy to cause the nozzle of the pipe to be deformed, so that the pipe cannot be assembled, and the straightening process needs to be added, resulting in low production efficiency of the pipe with external protrusions

[0005] In addition, during the knocking process, it is difficult to make the knocking position uniform, so that the consistency of the outer convex points of the pipe fittings is poor, resulting in poor quality of the entire pipe fittings

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