Gas shielded welding machine

Abstract

The utility model relates to the technical field of welding machines, in particular to a gas shielded welding machine, and aims to solve the technical problem that the welding quality is reduced due to interference of external airflow and instability of a protective gas layer during outdoor welding operation of gas shielded welding in the prior art. A gap is reserved between the two layers of hemispherical covers, horizontal arc grooves are formed in the inner wall of the outer-layer hemispherical cover, the arc plates are slidably connected into the horizontal arc grooves through the arc pieces, the two arc plates are slidably connected into the horizontal arc grooves in the left side and the right side of each hemispherical cover respectively, through holes are formed in the upper portions and the bottoms of the hemispherical covers and the two arc plates, and the hemispherical covers, the arc plates and the arc pieces are arranged in a transparent mode. When a plane is welded, the hemispherical cover is buckled to the surface of the plate, the arc plates are contained in the hemispherical cover, at the moment, when the hemispherical cover is used for blocking wind during plate welding and pipe fitting welding, the pipe fitting is placed in the through hole, the two arc plates are buckled with each other and jointly spliced with the hemispherical cover to form a sphere, and wind is blocked during pipe fitting welding.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, specifically to a gas shielded welding machine. Background Technology

[0002] With the continuous development of industry, the requirements for welding technology are becoming increasingly stringent. Traditional welding methods, such as manual arc welding, suffer from problems such as low welding efficiency, unstable weld quality, and high labor intensity. In some fields with high requirements for welding quality and efficiency, such as automobile manufacturing, aerospace, and shipbuilding, there is an urgent need for a more efficient and high-quality welding method. Gas shielded welding emerged in this context.

[0003] Gas shielded welding uses gas as the arc medium to protect the arc and the welding zone. It can effectively isolate the air and prevent the weld metal from being oxidized and nitrided, thereby improving the quality and performance of the weld. The arc and molten pool have good visibility. During the welding process, the operator can adjust the welding parameters in real time according to the molten pool to ensure the welding quality. The welding process is convenient to operate, with little or no slag, and basically no slag removal is required after welding. The welding speed is relatively fast, the molten pool is small, the heat-affected zone is narrow, and the deformation of the weldment is small after welding.

[0004] When performing outdoor welding operations, existing gas shielded welding technology suffers from reduced welding quality due to external airflow interference and instability of the protective gas layer. Utility Model Content

[0005] This invention addresses the technical problem of decreased welding quality in existing gas shielded welding operations during outdoor welding due to external airflow interference and instability of the protective gas layer, and provides a gas shielded welding machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas shielded welding machine, comprising: a welding machine body connected to a welding torch via a welding torch cable, the welding torch cable having a wire feeding channel and a gas passage, a control switch connected to the welding torch handle, a torch head connected to the end of the welding torch, welding wire and shielding gas being discharged through the torch head, two concentrically arranged hemispherical covers connected to the welding torch, a gap between the two hemispherical covers, a horizontal arc groove formed on the inner wall of the outer hemispherical cover, an arc plate slidably connected to the horizontal arc groove via an arc plate, two arc plates slidably connected to the horizontal arc grooves on the left and right sides of the hemispherical cover respectively, through holes formed at the top and bottom of the hemispherical cover and the two arc plates, and the hemispherical cover, arc plates, and arc plates being transparent.

[0007] Preferably, the outer ends of the two arc plates in the arc plate are respectively connected to corresponding magnets, and the two magnets can attract each other and close.

[0008] Preferably, a supporting plane is cut out on the outer surface of the magnet, and when the magnet is fully retracted, the supporting plane is set perpendicular to the axis of the gun head.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. When welding a flat surface, the hemispherical cover is fastened to the surface of the plate, and the arc plate is stored inside the hemispherical cover. At this time, the hemispherical cover acts as a wind shield for welding the plate. When welding pipe fittings, the pipe fittings are placed in the through hole, and the two arc plates are fastened together with the hemispherical cover to form a sphere, which shields the pipe fittings from the wind. In this way, the stability of the protective gas layer is maintained by blocking the wind, thus improving the welding quality.

[0011] 2. When the two arc plates are fastened together, they are fixed by magnetic attraction. When the two arc plates are stored, they are stored by magnetic attraction to the hemispherical cover, thus ensuring that the arc plates will not slide out automatically. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0015] In the diagram: 1. Welding machine body; 2. Welding torch cable; 3. Welding torch; 4. Control switch; 5. Torch head; 6. Welding wire; 7. Hemispherical cover; 8. Arc plate; 9. Arc piece; 10. Through hole; 11. Magnet; 12. Supporting plane. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] The following is in conjunction with the appendix Figure 1-3This embodiment describes a gas shielded welding machine, comprising: a welding machine body 1 connected to a welding torch 3 via a welding torch cable 2, the welding torch cable 2 having a wire feeding channel and a gas passage, a control switch 4 connected to the handle of the welding torch 3, a torch head 5 connected to the end of the welding torch 3, welding wire 6 and shielding gas being discharged through the torch head 5, two concentric hemispherical covers 7 connected to the welding torch 3, with a gap between the two hemispherical covers 7, a horizontal arc groove being formed on the inner wall of the outer hemispherical cover 7, an arc plate 8 being slidably connected to the horizontal arc groove via an arc piece 9, two arc plates 8 being slidably connected to the horizontal arc grooves on the left and right sides of the hemispherical cover 7 respectively, and through holes 10 being formed at the top and bottom of the hemispherical cover 7 and the two arc plates 8, the hemispherical cover 7, the arc plates 8, and the arc pieces 9 being transparent.

[0020] When welding flat plates, the hemispherical cover 7 is fastened to the surface of the plate, and the arc plate 8 is stored inside the hemispherical cover 7. At this time, the hemispherical cover 7 shields the plate from the wind during welding. When welding pipe fittings, the pipe fittings are placed in the through hole 10, and the two arc plates 8 are fastened together with the hemispherical cover 7 to form a sphere, which shields the pipe fittings from the wind during welding. In this way, the stability of the protective gas layer is maintained by blocking the wind, thereby improving the welding quality.

[0021] The outer ends of the two arc plates 8 are respectively connected to corresponding magnets 11, and the two magnets 11 can attract each other and close.

[0022] When the two arc plates 8 are fastened together, they are fixed by magnet 11. When the two arc plates 8 are stored, they are stored by magnet 11 to attract the hemispherical cover 7, thus ensuring that the arc plates 8 will not slide out automatically.

[0023] The outer surface of the magnet 11 is cut to form a supporting plane 12. When the magnet 11 is fully retracted, the supporting plane 12 is set perpendicular to the axis of the gun head 5.

[0024] When welding the flat surface of the plate, the supporting surface 12 contacts the plate, making the welding more stable.

[0025] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas shielded welding machine comprising: The welding machine body (1) is connected to the welding torch (3) via the welding torch cable (2). The welding torch cable (2) is provided with a wire feeding channel and a gas passage. The handle of the welding torch (3) is connected to a control switch (4). The end of the welding torch (3) is connected to a torch head (5). The welding wire (6) and the shielding gas are discharged through the torch head (5). The feature is that: two concentric hemispherical covers (7) are connected to the welding gun (3), and there is a gap between the two hemispherical covers (7). The inner wall of the outer hemispherical cover (7) is provided with a horizontal arc groove. The arc plate (8) is slidably connected to the horizontal arc groove through the arc piece (9). Two arc plates (8) are slidably connected to the horizontal arc grooves on the left and right sides of the hemispherical cover (7). The upper and lower parts of the hemispherical cover (7) and the two arc plates (8) are provided with through holes (10). The hemispherical cover (7), the arc plate (8) and the arc piece (9) are transparent.

2. A gas shielded welding machine according to claim 1, characterised in that: The outer ends of the two arc plates (8) are respectively connected to corresponding magnets (11), and the two magnets (11) can attract each other and close.

3. A gas shielded welding machine according to claim 2, characterised in that: The outer surface of the magnet (11) is cut to form a supporting plane (12). When the magnet (11) is fully retracted, the supporting plane (12) is set perpendicular to the axis of the gun head (5).

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