Gun barrel not prone to melt with contact tube

A technology of conductive tip and gun rod, applied in the field of welding gun rod, can solve the problem that the conductive tip cannot be replaced and cannot continue welding, etc., and achieves the effect of reducing the occupied space, enhancing the connection, and connecting firmly

Inactive Publication Date: 2020-06-16
江苏航运职业技术学院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the contact tip cannot be replaced, and welding cannot be continued.

Method used

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  • Gun barrel not prone to melt with contact tube
  • Gun barrel not prone to melt with contact tube
  • Gun barrel not prone to melt with contact tube

Examples

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-5 , the present invention provides a kind of technical scheme: a kind of gun bar that is not easy to burn dead with conductive tip, comprises gun bar body 1, conductive tip 14, comprises connector A4, connector B8 on the gun bar body of welding torch, and one end of gun bar body 1 is provided with connection Head A4, the other end of gun shaft body 1 is provided with connector B8, connector A4, and connector B8 is all integrated with gun s...

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Abstract

The invention discloses a gun barrel not prone to melt with a contact tube. The gun barrel comprises a gun barrel body and the contact tube, wherein the gun barrel body is arranged on the gun barrel of a welding gun, and a connector B is arranged at one end of the gun barrel body; a half of the outer wall of the connector B is provided with threads, the other half of the outer wall of the connector B is smooth, and the inner side wall of the connector B is provided with threads; a connecting threaded cover movable groove is formed in the other end of the gun barrel body, threads are arranged inside the connecting threaded cover movable groove, and an anti-falling edge is arranged at one end of the connecting threaded cover movable groove; and the contact tube is arranged at the connector B, and the contact tube is fixedly connected with the connector B in a matched mode through a threaded connector and an anti-falling cover. The connector B and the contact tube of the gun barrel of thewelding gun are made of chromium-zirconium alloy red copper, so that the thermal expansion coefficients of the connector B and the contact tube are the same; and the gun barrel and the contact tube are expanded after being heated, but the expanded sizes are the same, no gap exists at the threaded position where the gun barrel and the contact tube are connected, and no sparking exists between thethreads so that the gun barrel and the contact tube cannot be melted.

Description

technical field [0001] The invention relates to the technical field of welding gun rods, in particular to a gun rod that is not easy to be burnt with a conductive tip. Background technique [0002] Gas shielded welding and submerged arc welding torches include a gun shaft and a conductive wire, and the gun shaft and a conductive wire are connected with threads. The gun shaft of the torch of existing gas-shielded welding and submerged arc welding is all made of brass, and the conductive wire is made of pure red copper or chromium-zirconium alloy red copper. The contact tip is a wearing part, and it is often unscrewed from the gun shaft for replacement. Welding guns made of these two materials have been used for more than ten years without any problems. However, in recent years, automatic gas shielded welding has been used more and more. During automatic gas shielded welding, the phenomenon of "burning" of the gun shaft and the conductive tip often occurs. Said "gun rod and...

Claims

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Application Information

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IPC IPC(8): B23K9/28B23K9/26
CPCB23K9/26B23K9/28
Inventor 刘强石惟一赵孔标陈福兰凌付平
Owner 江苏航运职业技术学院
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