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Easily-adjustable durable welding contact tube and method

A kind of contact tip, durable technology, applied in the direction of electrode accessories, welding rod characteristics, etc., can solve problems such as pores, obstructions, lack of protective gas protection in the molten pool, etc., to reduce high temperature softening phenomenon, improve welding quality, and high adjustment accuracy. Effect

Pending Publication Date: 2022-04-29
何强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the spatter generated by welding is easy to splash into the cracks between the conductive blocks. If it is not cleaned, when the conductive blocks are folded inward, it will cause certain obstacles
In addition, splashes may accumulate in large quantities at gaps, affecting the flow of shielding gas, and the molten pool lacks the protection of shielding gas, resulting in pores

Method used

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  • Easily-adjustable durable welding contact tube and method
  • Easily-adjustable durable welding contact tube and method
  • Easily-adjustable durable welding contact tube and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: figure 1 is a structural diagram of this embodiment. This figure shows the state of the contact tip when it is not worn, and the contact tip is composed of a main body 100 and an adjustment sleeve 200 . The main body 100 is made of materials with good electrical conductivity, such as copper, silver, aluminum, graphene and the like. The adjustment sleeve 200 can be made of various metal materials. When selecting materials, it is best to choose materials with a lower coefficient of thermal expansion than the main body 100. The materials should also have certain anti-splash properties. If materials with poor anti-splash properties are used, the It has anti-splash treatment. But the best solution is ceramics, because ceramics can not only play a good anti-splash effect on the welding of any material, but also have a low thermal expansion coefficient and have good stability in connection with the main body 100 . The rear end of the main body 100 is the connecti...

Embodiment 2

[0039] Example 2: figure 2 is a structural diagram of this embodiment. The main body thread 115 in this embodiment is an internal thread, and the adjusting sleeve thread is an external thread. In this embodiment, the front end of the conductive block 125 has no taper, but in order to achieve the purpose of drawing the conductive block 125 inward, a taper is provided on the adjustment hole 210 , so the adjustment hole 210 is conical. For the convenience of manufacture, the conductive block 125 is arranged on the core body 300, so this structure can make the conductive block 125 very long, and the cross-sectional size of the conductive block 125 can be appropriately increased without increasing its rigidity. The core body 300 and the main body 100 have a cylindrical hole for the welding wire to pass through, and the core body 300 is connected to the main body 100. The connection between the core body 300 and the main body 100 should be tight, and ensure that there is enough co...

Embodiment 3

[0040] Embodiment 3: In this embodiment, the adjusting sleeve 200 adopts an internal thread, and the adjusting hole 210 is a conical hole, such as image 3 shown. The structure of the conductive block 125 can be handled flexibly as long as the three prerequisites described in Embodiment 1 are met. The front end of the guide hole 220 is a cylindrical hole, the rear end is a conical hole, and the front end of the adjustment sleeve is a rounded structure. The purpose is to reduce the area of ​​the head plane, which can effectively reduce the adhesion of splashes. In addition, optimizing the surface roughness of the adjusting sleeve 200 , especially the head, to make it smoother can also reduce splash adhesion. Although the ceramic adjustment sleeve has the characteristics of low thermal expansion coefficient, its toughness is not as good as the copper adjustment sleeve. The adjustment sleeve 200 is made of ceramic or copper, aluminum and other metals, and it needs to be flexibly...

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Abstract

The easy-to-adjust durable welding contact tube is composed of a main body (100) and an adjusting sleeve (200), a connecting part (105) is arranged at the rear end of the main body (100), a cylindrical hole for a welding wire to pass through is formed in the main body (100), conductive blocks (125) are arranged at the front end of the main body (100), a gap is formed between the conductive blocks (125), the adjusting sleeve (200) is provided with a cavity for containing the conductive blocks (125), an adjusting hole (210) and a guide hole (220) are formed in the front end of the adjusting sleeve (200), and the cylindrical hole of the main body (100) and the guide hole (220) are located on the same axis. The conductive block (125) or the adjusting hole (210) has taper and is used for changing the direction of force, the main body thread (115) is meshed with the adjusting sleeve thread (205), the adjusting sleeve (200) and the main body (100) move relatively, namely the main body (100) or the adjusting sleeve (200) is twisted to enable the conductive block (125) and the adjusting hole (210) to move oppositely, external force is applied to the conductive block (125), and the conductive block (125) is folded inwards. The force generated after the spring (400) is compressed can be used for folding the conductive block (125).

Description

technical field [0001] The technical field of the present invention belongs to the conductive tip for welding. The conductive tip adopts an adjustable structure, which can replenish the wear of the conductive tip by the welding wire in time, so that the welding wire and the conductive tip can always maintain good contact, and ensure that the current is not caused by the conductive tip during welding. Attenuation due to the wear of the nozzle improves the welding quality. And because more material is provided for the wear of the welding wire, the service life of the contact tip is also improved. The invention not only discloses the structure of the easily adjustable and durable welding contact tip, but also discloses the method for the easy adjustment of the contact tip and the improvement of the service life. Background technique [0002] Although there are many brands and different specifications and models of contact tips used in MIGA welding, their structures are all sim...

Claims

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Application Information

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IPC IPC(8): B23K9/26
CPCB23K9/26
Inventor 何强何珍汪年成
Owner 何强
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