CN210498745U

CN210498745U - Electric arc welding torch structure

Info

Publication number: CN210498745U
Application number: CN201921215079.4U
Authority: CN
Inventors: 李兆展
Original assignee: Qingdao Daneng Welding Engineering Co Ltd
Current assignee: Qingdao Daneng Welding Engineering Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-12
Anticipated expiration: 2029-07-30

Abstract

The utility model provides an electric arc welding torch structure, including the control portion, connect the cable of locating this control portion rear end, locate switch on this control portion, locate the connecting portion of this control portion front end and locate the welding tip of this connecting portion front end, the welding tip includes the contact jaw and locates the outer nozzle of this contact jaw, the contact jaw is the hollow structure that copper alloy constitutes, and this nozzle includes the main part and locates a protection end of this main part front end, and this main part is the copper alloy pipe, and the front end inboard of this nozzle forms a reaming, and this protection end includes a barrel and connects a linkage segment of locating on this barrel, and this linkage segment correspondence is acceptd in the reaming of nozzle, and this barrel is located the front end outside of nozzle, is equipped with a through-hole in this protection end, and its internal diameter is the same with the interior aperture of nozzle. The connecting section of the electric arc welding torch structure is correspondingly accommodated in the reaming hole of the nozzle, and the cylinder is positioned outside the front end of the nozzle so as to protect the front end of the welding nozzle.

Description

Electric arc welding torch structure

Technical Field

The utility model relates to a welding equipment, in particular to electric arc welding torch structure.

Background

Welding plays a vital role in various metal making industries, which is the creation of a high energy density forming molten pool on a workpiece. The arc welding and the process of the inert gas shielded welding show excellent effect on the quality of the metal material fusion welding, and the structure of the arc welding torch has not been substantially changed for half a century, and the front end of the nozzle is easy to deform under the influence of high heat in production and use, so that the whole nozzle needs to be replaced, which is time-consuming, labor-consuming and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric arc welding torch structure has solved the yielding problem of nozzle among the prior art.

The technical scheme of the utility model is realized like this:

an electric arc welding torch structure comprises a holding part, a cable connected to the rear end of the holding part, a switch arranged on the holding part, a connecting part arranged at the front end of the holding part and a welding tip arranged at the front end of the connecting part, wherein the welding tip comprises a contact end and a nozzle arranged outside the contact end, the contact end is of a hollow structure formed by copper alloy, the nozzle comprises a main body part and a protective end arranged at the front end of the main body part, the main body part is a copper alloy pipe, a hole is formed in the inner side of the front end of the nozzle, the protective end comprises a cylinder body and a connecting section connected to the cylinder body, the connecting section is correspondingly contained in the hole of the nozzle, the cylinder body is positioned on the outer side of the front end of the nozzle, and a through hole is arranged in the protective end, and the inner diameter of the through hole is.

Preferably, the cylinder is cylindrical or truncated cone-shaped.

Preferably, a protective tube is sleeved outside the contact end.

Preferably, the protection tube is a carbon tube.

Preferably, the protection tube is fixed with the contact end through threaded connection.

Preferably, a pipe barrel is arranged in the nozzle, and the protection end is formed at the front end of the pipe barrel.

The utility model has the advantages that:

the utility model discloses electric arc welding torch structure accessible linkage segment corresponds accepts in the reaming of nozzle, and this barrel is located the front end outside of nozzle to protect the front end of welding tip, when the front end of welding tip takes place to warp, removable protection end can, convenient and fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an arc welding torch according to the present invention;

FIG. 2 is a schematic view of the protective end portion of FIG. 1;

fig. 3 is a schematic structural view of another embodiment of the nozzle portion of fig. 1.

In the figure:

10. a grip portion; 20. a cable; 30. a switch; 50. a connecting portion; 60. welding a nozzle; 61. a contact end; 62. a nozzle; 63. a main body portion; 65. a protection end; 66. reaming; 67. a barrel; 68. a connecting section; 69. protecting the tube; 64. a tube barrel; 70. a shielding gas injection part; 71. and (4) air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the arc welding torch structure includes a grip portion 10, a cable 20 connected to a rear end of the grip portion 10, a switch 30 provided on the grip portion 10, a connecting portion 50 provided at a front end of the grip portion 10, and a tip 60 provided at a front end of the connecting portion 50.

Referring to fig. 2, the welding tip 60 includes a contact end 61 and a nozzle 62 disposed outside the contact end 61. The contact end 61 is a hollow structure made of a copper alloy. The nozzle 62 includes a main body 63 and a protection end 65 disposed at a front end of the main body 63. The body 63 is a copper alloy tube. In this embodiment, a counterbore 66 is formed inside the forward end of the nozzle 62, and the inner surface of the counterbore 66 is internally threaded. The protection end 65 includes a cylinder 67 and a connecting section 68 connected to the cylinder 67. The cylinder 67 may be cylindrical or circular truncated cone. The protection end 65 is provided with a through hole having an inner diameter equal to the inner diameter of the nozzle 62. The outer surface of the connecting section 68 is externally threaded to correspond with the inner surface of the counterbore 66. The connecting section 68 is correspondingly accommodated in the counterbore 66 of the nozzle 62, and the cylinder 67 is positioned outside the front end of the nozzle 62 to protect the front end of the nozzle 62.

Referring also to FIG. 3, another embodiment of an arc welding torch configuration is shown. In this embodiment, a protection tube 69 is sleeved on the contact end 61, and the protection tube 69 may be a carbon graphite tube. The protective tube 69 is fixed to the contact end 61 by a screw connection. The nozzle 60 is provided with a tube 64, and the protection end 65 is formed at the front end of the tube 64. The nozzle 60 forms an abutment against the inside end of the barrel 64. The barrel 64 may be threadably connected to the nozzle 60. The shielding gas injection part 70 is formed at the outer periphery of the inner end of the contact end 61, and the gas hole 71 is formed corresponding to the shielding gas injection part 70. In this embodiment, the arc welding torch protects the contact end 61 and the nozzle 62 by the protective tube 69, the socket 64, and the protective end 65, and prevents weld spatter from directly adhering to the contact end 61 and the nozzle 62 to protect them.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc welding torch structure characterized by: the welding nozzle comprises a holding part, a cable connected to the rear end of the holding part, a switch arranged on the holding part, a connecting part arranged at the front end of the holding part and a welding nozzle arranged at the front end of the connecting part, wherein the welding nozzle comprises a contact end and a nozzle arranged outside the contact end, the contact end is of a hollow structure formed by copper alloy, the nozzle comprises a main body part and a protective end arranged at the front end of the main body part, the main body part is a copper alloy pipe, a reaming hole is formed in the inner side of the front end of the nozzle, the protective end comprises a barrel body and a connecting section connected to the barrel body, the connecting section is correspondingly contained in the reaming hole of the nozzle, the barrel body is positioned on the outer side of the front end of the nozzle, and a through hole is formed in the protective end, and the inner diameter.

2. The arc welding torch structure of claim 1 wherein: the cylinder is cylindrical or truncated cone-shaped.

3. The arc welding torch structure of claim 1 wherein: the contact end is sleeved with a protective tube.

4. The arc welding torch structure of claim 3, wherein: the protection tube is a graphite carbon tube.

5. The arc welding torch structure of claim 3, wherein: the protective tube is fixedly connected with the contact end through threads.

6. The arc welding torch structure of claim 1 or 3, wherein: a pipe barrel is arranged in the nozzle, and the protective end is formed at the front end of the pipe barrel.