WO2019019508A1

WO2019019508A1 - Novel welding gun

Info

Publication number: WO2019019508A1
Application number: PCT/CN2017/114092
Authority: WO
Inventors: 陈庆城; 吴有尧; 徐晓凯; 张伯华; 王东
Original assignee: 广船国际有限公司
Priority date: 2017-07-27
Filing date: 2017-11-30
Publication date: 2019-01-31
Also published as: CN207013906U

Abstract

A novel welding gun, comprising a handle (1), a tube (2) disposed at one side of the handle (1), and a tip disposed at the end of the tube (2) distant from the handle (1). There is a space through which a welding wire (3) passes in the tube (2); the tube (2) comprises a first tube (21) and a second tube (22); one end of the first tube (21) is detachably connected to the handle (1), and the other end is detachably connected to the second tube (22); the tip is disposed at the end of the second tube (22) distant from the first tube (21), wherein the second tube (22) comprises a first branch tube (221) detachably connected to the first tube (21), a second branch tube (222) connected to the tip, and a connecting branch tube (223) connected between the first branch tube (221) and the second branch tube (222); the connecting branch tube (223) is a shaped tube. The novel welding gun has a simple structure and is adjustable in length, the angle of the tip is adjustable, the welding quality in a narrow space is improved, and the welding speed is increased.

Description

A new type of welding torch

Technical field

The utility model relates to the technical field of welding equipment, in particular to a novel welding torch.

Background technique

The narrow space is one of the difficulties in the construction of the ship. Many of the small ship products are deep and narrow spaces, and the sharp corners of the bow and the bow are particularly prominent. On-site construction For deep and narrow position welding, welding is generally carried out by welding a CO ₂ semi-automatic welding torch to a wooden stick during welding, and then holding the wooden stick to insert the welding gun into the space to be welded in a narrow space for welding. The reverse side of the weld is then welded with a carbon arc gouging or a process hole. The above welding method has the following defects: (1) The way in which the welding rod is tied by the wooden stick makes the welding gun unstable, the positional deviation is easy to occur during welding, and the welding quality is affected; (2) the angle of the welding gun tip cannot be adjusted as needed, only The angle of the wooden stick can be adjusted by hand to adjust the angle of the wooden stick to achieve special angle position welding, but the adjustment angle of the wooden stick is limited, the technical requirements of the operator are high during operation, and the angle deviation is easy to occur during the welding process, thereby causing a large amount of Welding defects such as weld slag inclusion, burn-through, etc., the weld pass non-destructive flaw detection rate is low, resulting in multiple repairs, resulting in a large number of repairs in the weld, resulting in time-consuming, labor-intensive, consumables.

Utility model content

It is an object of the present invention to provide a new type of welding torch in which the length of the tip can be adjusted as needed.

Another object of the present invention is to provide a new type of welding torch whose angle of the tip can be adjusted.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

Provided is a novel welding torch comprising a handle, a barrel disposed on one side of the handle, and a tip disposed at an end of the barrel away from the handle, the barrel having a space through which a wire passes, the barrel The first barrel and the second barrel are included, one end of the first barrel is detachably connected to the handle, the other end is detachably connected to the second barrel, and the tip is fixed to the second The barrel is away from one end of the first barrel, wherein the second barrel includes a first branch detachably connected to the first barrel, a second branch connected to the tip, and a connection A connecting branch between the first branch pipe and the second branch pipe, wherein the connecting branch pipe is a shaped pipe.

As a preferred embodiment of the new welding torch, the outer circumference of one end of the first barrel is provided with a first external thread, the inner wall of the other end is provided with a first internal thread, and the handle is provided with a fixed tube, and the fixed tube is provided The inner wall is provided with a second internal thread that matches the first external thread, and the first barrel is threaded onto the fixed tube.

As a preferred embodiment of the new welding torch, the second barrel is disposed adjacent to an outer circumference of one end of the first barrel and has a second external thread matching the first internal thread, the first barrel and The second barrel is screwed.

As a preferred embodiment of the novel welding torch, the pipe wall of the connecting branch pipe is composed of a plurality of wires, and the length direction of the wire per strand extends in the axial direction of the connecting branch pipe.

As a preferred solution of the novel welding torch, the shaping tube is wrapped with an insulating layer.

As a preferred embodiment of the novel welding torch, the wire is a copper wire having a diameter of not less than 1.6 mm.

As a preferred solution of the novel welding torch, the first barrel is a straight tube, and an outer layer is covered with an insulating layer.

As a preferred embodiment of the novel welding torch, the first barrel is a copper tube.

As a preferred embodiment of the novel welding torch, the first branch pipe and the second branch pipe are straight pipes, and the outer portions of both are wrapped with an insulating layer.

As a preferred embodiment of the novel welding torch, the first branch pipe and the second branch pipe are both copper tubes.

The utility model has the beneficial effects that a detachable barrel is arranged between the handle and the tip, and the first barrel and the second barrel of the barrel are also provided with a detachable structure, and the stenosis of different lengths When welding in space, only the first barrel of different lengths needs to be replaced to achieve welding. During the welding process, the position of the head is stable and the welding offset is not easy to occur; by setting the connecting branch of the second barrel as a shaped tube, according to It is necessary to bend the shaping tube so that the tip has a set welding angle. Compared with the prior art, the novel welding gun of the utility model has the advantages of simple structure, adjustable length, and adjustable angle of the tip, which improves the welding quality in the narrow space and improves the welding speed.

DRAWINGS

FIG. 1 is a schematic structural view of a novel welding torch according to an embodiment of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

3 is a schematic structural view of a first barrel according to an embodiment of the present invention.

4 is a schematic view showing the assembly of a first branch pipe and a connecting branch pipe according to an embodiment of the present invention.

In the picture:

1, the handle;

2, barrel; 21, the first barrel; 22, the second barrel; 221, the first branch; 222, the second branch; 223, the connecting branch; 2231, the wire; 23, the insulating layer;

3, welding wire.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 4, an embodiment of the present invention provides a new type of welding torch, including a handle 1, and a setting a barrel 2 on the side of the handle 1 and a tip disposed at an end of the barrel 2 remote from the handle 1, the barrel 2 has a space through which the welding wire 3 passes, and the barrel 2 includes a first barrel 21 and a second barrel 22 One end of the first barrel 21 is detachably connected to the handle 1, and the other end is detachably connected to the second barrel 22, and the tip is fixed at one end of the second barrel 22 away from the first barrel 21, wherein the second gun The tube 22 includes a first branch pipe 221 detachably connected to the first barrel 21, a second branch pipe 222 connected to the pipe head, and a connecting branch pipe 223 connected between the first branch pipe 221 and the second branch pipe 222. The connecting branch pipe 223 is Shaped tube. The detachable barrel 2 is disposed between the handle 1 and the tip, and the first barrel 21 and the second barrel 22 of the barrel 2 are also disposed in a detachable structure, and are arranged in narrow spaces of different lengths. During the welding work, it is only necessary to replace the first barrel 21 of different lengths to achieve welding, and the position of the head during the welding process is stable and the welding offset is not easy to occur; by setting the connecting branch 223 of the second barrel 22 as a shaping tube, The shaped tube is bent as needed to provide the tip with a set weld angle. Compared with the prior art, the novel welding gun of the utility model has the advantages of simple structure, adjustable length, and adjustable angle of the tip, which improves the welding quality in the narrow space and improves the welding speed.

In a preferred embodiment of the present invention, the outer circumference of one end of the first barrel 21 is provided with a first external thread, the inner wall of the other end is provided with a first internal thread, and the handle 1 is provided with a fixed tube for fixing the inner wall of the tube A second internal thread is provided which is matched with the first external thread, and the first barrel 21 is screwed onto the fixed tube.

Further, a second external thread matching the first internal thread is disposed on the outer circumference of the second barrel 22 near the end of the first barrel 21, and the first barrel 21 is screwed to the second barrel 22. The screwing method fixes the handle 1 and the barrel 2, which can reduce the difficulty of disassembly.

In another preferred embodiment of the present invention, the wall of the connecting branch pipe 223 is composed of a plurality of wires 2231, and the length direction of each wire 2231 extends in the axial direction of the connecting branch pipe 223.

Specifically, the connecting branch pipe 223 is wrapped with an insulating layer 23 .

The wire 2231 is a copper wire having a diameter of not less than 1.6 mm.

In the present embodiment, the wall of the connecting branch pipe 223 is composed of 14 strands of copper wire having a diameter of 1.6 mm, and the outer diameter of the connecting branch pipe 223 is 13 mm, and adjacent copper wires are connected by a joint or a welded joint.

In still another preferred embodiment of the present invention, the first barrel 21 is a straight tube, and the outer portion thereof is covered with an insulating layer 23.

Preferably, the first barrel 21 is a copper tube.

Specifically, the first branch pipe 221 and the second branch pipe 222 are straight pipes, and the outer portions of both are wrapped with the insulating layer 23. By wrapping the insulating layer 23 on the outside of the second barrel 22, electric shock can be effectively avoided and safety hazards can be reduced.

Preferably, the first branch pipe 221 and the second branch pipe 222 are both copper tubes.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used merely to distinguish between the description and have no particular meaning.

It should be noted that the foregoing specific embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto, and any changes that are easily conceived by those skilled in the art are possible within the technical scope of the present disclosure. Replacement should be covered by the scope of the present invention.

Claims

A novel welding torch characterized by comprising a handle, a barrel disposed on one side of the handle, and a tip disposed at an end of the barrel away from the handle, the barrel having a space through which the welding wire passes The barrel includes a first barrel and a second barrel, one end of the first barrel is detachably connected to the handle, and the other end is detachably connected to the second barrel, and the head is fixed at the The second barrel is away from one end of the first barrel, wherein the second barrel includes a first branch detachably connected to the first barrel, a second branch connected to the tip, and a connecting branch pipe connected between the first branch pipe and the second branch pipe, the connecting branch pipe being a shaped pipe.
The new welding torch according to claim 1, wherein an outer circumference of one end of the first barrel is provided with a first external thread, an inner wall of the other end is provided with a first internal thread, and a fixed tube is disposed on the handle. The inner wall of the fixed tube is provided with a second internal thread matched with the first external thread, and the first barrel is screwed onto the fixed tube.
The novel welding torch according to claim 2, wherein a second outer thread of the second barrel adjacent to an end of the first barrel is provided with a second external thread matching the first internal thread, The first barrel is screwed to the second barrel.
A novel welding torch according to claim 1, wherein said pipe wall of said connecting branch is composed of a plurality of wires, and the length direction of said wires extends in the axial direction of said connecting branch.
The novel welding torch according to claim 4, wherein the shaping tube is wrapped with an insulating layer.
A novel welding torch according to claim 4, wherein said wire is a copper wire having a diameter of not less than 1.6 mm.
A novel welding torch according to any one of claims 1 to 6, wherein the first barrel is a straight tube and the outer portion is covered with an insulating layer.
A new welding torch according to any one of claims 1 to 6, wherein said first gun The tube is a copper tube.
The novel welding torch according to any one of claims 1 to 6, wherein the first branch pipe and the second branch pipe are straight pipes, and both of them are covered with an insulating layer.
The novel welding torch according to any one of claims 1 to 6, wherein the first branch pipe and the second branch pipe are both copper pipes.