CN209811427U

CN209811427U - Double-layer gas shielded welding gun

Info

Publication number: CN209811427U
Application number: CN201920298263.3U
Authority: CN
Inventors: 苏银玉; 张雪艳; 吴长青; 和进明
Original assignee: Shenyang Est Robot Automation Technology Co Ltd
Current assignee: Shenyang Est Robot Automation Technology Co Ltd
Priority date: 2019-03-09
Filing date: 2019-03-09
Publication date: 2019-12-20
Anticipated expiration: 2029-03-09

Abstract

The utility model relates to the field of welding guns, in particular to a double-layer gas protection welding gun, which comprises a gun body, a core barrel, a gun head and a gun nozzle, the gun body is provided with a second air inlet, a second air circulation channel is formed between the core cylinder and the gun body and communicated with the second air inlet, an annular second air outlet is formed at the welding position of the gun nozzle corresponding to the gun nozzle, the second gas outlet is communicated with the second gas flow channel, the second gas outlet can spray inert gas and form an annular gas protection area around the welding point, the gun body is also provided with a first air inlet, the head area of the gun body is provided with a first air outlet, the gun body is internally provided with a hollow first air circulation channel, the first gas flow channel is communicated with a first exhaust port and a first gas inlet, and the first exhaust port can jet inert gas and form an annular outer gas protection area outside the gas protection area. The welding gun can maintain the protective environment formed by inert gas in a better welding condition.

Description

Double-layer gas shielded welding gun

Technical Field

The utility model relates to a welder field, especially a welder with double-deck gas protection.

Background

The welding gun is a part for performing welding operation in the welding process, is a tool for gas shielded welding, is shaped like a gun, is provided with a nozzle at the front end, and sprays high-temperature flame as a heat source. It is flexible, convenient and fast to use, and simple in process.

In the prior art, an inert gas protective layer is formed at the head of a welding gun during welding of the welding gun, so that a welding environment is formed around the outside of a welding area, and the welding spot is prevented from being oxidized quickly. However, such a welding gun has some disadvantages, for example, when the cross wind is large in the welding environment, the inert gas is easily blown away by the cross wind, and the welding arc drifts, so that the welding area cannot be effectively protected by the inert gas.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a double-deck gas shielded arc welding gun, this kind of welder can make the protective environment that inert gas formed maintain better welding condition for the welding position can not oxidation too fast, and welds the arc and stabilize.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a double-deck gas shielded arc welding gun, includes the rifle body, a core section of thick bamboo, rifle head and rifle mouth, be equipped with the second air inlet on the rifle body, form second gas circulation passageway between a core section of thick bamboo and the rifle body, second air inlet and second gas circulation passageway intercommunication, the rifle mouth corresponds the welding department and forms annular second gas vent, and this second gas vent and second gas circulation passageway intercommunication, but the second gas vent jet out inert gas and form annular gas protection zone around the welding point, still seted up first air inlet on the rifle body, rifle body head region is equipped with first gas vent, is equipped with hollow first gas circulation passageway in the rifle body, and this first gas circulation passageway communicates first gas vent and first air inlet, but first gas vent jet out inert gas and form annular outer gas protection zone in gas protection zone outside.

Preferably, the gun body is tubular, the inner wall of the head of the gun body is retracted, and the gun head is arranged at the retracted position of the head of the gun body.

Preferably, the outer side surface of the lance tip is a conical surface.

Preferably, the inclination of the outer side surface of the lance head is greater than the inclination of the inner wall of the head of the lance body.

Use the utility model discloses a beneficial effect is:

this welder is through seting up first air inlet, first gas circulation passageway and first exhaust port at the rifle body for form the outside inert gas protected area of second floor outside original one deck inert gas protected area, when making meet adverse welding environment such as crosswind, welded region still can be protected by inert gas, makes the weld zone keep higher quality can not by quick oxidation, keeps welding arc stability.

Drawings

Fig. 1 is a schematic structural diagram of the double-layer gas shielded welding gun of the present invention.

Fig. 2 is a schematic view of the connection between the second air inlet and the gun body of the double-layer gas shielded welding gun of the present invention.

Fig. 3 is the connection schematic diagram of the water inlet and the water outlet in the water cooling system of the double-layer gas shielded welding gun of the utility model.

Fig. 4 is a schematic view of the connection between the first air inlet and the gun body of the double-layer gas shielded welding gun of the present invention.

The reference numerals include:

10-gun body, 20-core barrel, 30-gun sleeve, 40-end enclosure, 50-clove core head, 60-gun head, 70-gun nozzle, 80-tungsten electrode, 90-first air inlet, 100-first gas circulation channel, 110-first exhaust port, 120-second air inlet, 130-second gas circulation channel, 140-second exhaust port, 150-water inlet, 160-water outlet and 170-cooling water circulation channel.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in fig. 1-4, the present embodiment provides a double-layer gas-shielded welding gun, which includes a gun body 10, a cartridge 20, a gun head 60, and a gun nozzle 70, wherein the gun body 10 is provided with a second gas inlet 120, a second gas flow channel 130 is formed between the cartridge 20 and the gun body 10, the second gas inlet 120 is communicated with the second gas flow channel 130, the gun nozzle 70 forms an annular second gas outlet 140 corresponding to a welding position, the second gas outlet 140 is connected to the second gas flow channel 130, the second gas outlet 140 can spray inert gas and form an annular gas protection area around the welding point, the gun body 10 is further provided with a first gas inlet 90, the head area of the gun body 10 is provided with a first gas outlet 110, the gun body 10 is provided with a hollow first gas flow channel 100, the first gas flow path 100 communicates between a first gas outlet 110 and the first gas inlet 90. the first gas outlet 110 can inject an inert gas and form an annular outer gas shield area outside the gas shield area.

This welder is through seting up first air inlet 90, first gas circulation passageway 100 and first exhaust port 110 at the rifle body 10 for form the outside inert gas protected area of second floor in original one deck inert gas protected area, when meetting adverse welding environment such as crosswind, welded region still can be protected by inert gas, makes the weld zone keep higher quality can not oxidized by fast, and effectively stable arc that welds.

As shown in fig. 1, the gun body 10 is tubular and has a conical surface with an inner wall of a head portion retracted, and the tip 60 is provided at the retracted portion of the head portion of the gun body 10. The outer side surface of the lance head 60 is a conical surface. The inclination of the outer side surface of the lance head 60 is greater than the inclination of the inner wall of the head of the lance body 10. So that the lower tip of the inert gas new wall of the outer layer is provided with a wide conical gas protection area.

Specifically, as shown in fig. 1, the gun body 10 has a tubular main body, the core barrel 20 is inserted into the hollow of the gun body 10, the core barrel 20 is also a hollow tube, the tungsten electrode 80 is rod-shaped and inserted into the core barrel 20, the tail of the core barrel 20 is sealed by the end enclosure 40, and the tail of the gun body 10 is sealed by the gun case 30.

It can be seen that a clove core 50 is mounted in the head section of the cartridge 20, and the clove core 50 is disposed in a partial region between the cartridge 20 and the tungsten electrode 80. The head of the gun body 10 is provided with a gun head 60 and a gun nozzle 70, and the gun nozzle 70 is sleeved at the head position of the tungsten electrode 80.

The gun body 10 is hollowed to form an annular cavity, which is a first gas flow channel 100. An annular gap is left between the gun body 10 and the cartridge 20, and the annular gap is a second gas flow passage 130.

As shown in fig. 2, the gun body 10 is provided with a second air inlet 120, and the second air inlet 120 is a tubular body in this embodiment. The second air inlet 120 communicates with the cavity inside the gun body 10.

As shown in fig. 3, the torch body 10 is provided with a water inlet 150 and a water outlet 160, so that cooling water can flow through the torch through the water inlet 150, the cooling water passage 170 and the water outlet 160, thereby reducing the temperature of the torch.

As shown in fig. 4, the gun body 10 is provided with a first air inlet 90, and in this embodiment, the first air inlet 90 is a tubular body. The first air inlet 90 communicates with the cavity inside the gun body 10 and the gap between the cartridge 20.

The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a double-deck gas shielded arc welding gun, includes the rifle body, a core section of thick bamboo, rifle head and rifle mouth, be equipped with the second air inlet on the rifle body, form second gas flow channel between a core section of thick bamboo and the rifle body, second air inlet and second gas flow channel intercommunication, the rifle mouth corresponds the welding department and forms annular second gas vent, and this second gas vent and second gas flow channel intercommunication, the second gas vent can jet out inert gas and form annular gas protection district, its characterized in that around the welding point: still seted up first air inlet on the rifle body, the rifle body head region is equipped with first gas vent, and the rifle is internal to be equipped with hollow first gas circulation passageway, and this first gas circulation passageway intercommunication first gas vent and first air inlet, but first gas vent jet out inert gas and form annular outer gas protection district in gas protection district outside.

2. The dual-layer gas shield welding gun according to claim 1, wherein: the gun body is tubular, the inner wall of the head of the gun body is retracted, and the gun head is arranged at the retracted position of the head of the gun body.

3. The dual layer gas shield welding gun according to claim 2, wherein: the outer side surface of the gun head is a conical surface.

4. The dual layer gas shield welding gun according to claim 3, wherein: the inclination of the outer side surface of the gun head is greater than that of the inner wall of the head of the gun body.