Cabin body welding machine for energy storage battery cabin production

Abstract

The invention relates to the technical field of welding equipment, and discloses a cabin body welding machine for energy storage battery cabin production, which comprises a plasma spray gun for welding a bottom plate piece and a side plate piece into a right-angle component, and one end of the plasma spray gun is fixedly connected with a driving mechanism; a wire guiding part used for guiding a welding wire is fixedly installed in the middle of one side of the outer surface of the bottom plate part, a spraying part is fixedly installed on one side of the bottom of the outer surface of the bottom plate part, and a main air inlet pipeline communicated into an inner cavity of the spraying part is arranged on one side of the outer surface of the spraying part. According to the cabin body welding machine for energy storage battery cabin production, the jetting component and the wire guiding component are arranged, high-temperature airflow can be jetted to a molten pool between the bottom plate piece and the side plate piece through the jetting component, the cooling speed of the cabin body welding machine is reduced, and meanwhile the energy storage battery cabin body is welded through the impact force of the high-temperature airflow. And the molten pool is close to one side of the side plate piece to increase the contact surface between the molten pool and the side plate piece, so that the welding strength between the bottom plate piece and the side plate piece is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and in particular to a cabin welding machine for producing energy storage battery cabins. Background Art

[0002] Welding is a manufacturing process that connects metals or other thermoplastic materials at high temperature or high pressure. Among them, welding with plasma arc as heat source is one of the important forms of modern welding technology. Compared with other welding methods, plasma arc welding has the advantages of concentrated heat, small heat-affected zone and small deformation of the workpiece.

[0003] However, when the existing plasma arc welding is used to weld right-angle components for battery compartments, the molten pool becomes spherical due to the influence of surface tension. When welding in the horizontal direction, the contact area between the molten pool and the bottom plate is larger, while the contact area with the side plate is smaller, which greatly affects the connection strength between the two plates of the right-angle component after welding and its bearing capacity during future use. There are great safety hazards, and the safety and reliability are poor.

[0004] Therefore, there is an urgent need for a welding device for welding right-angle components of a battery compartment to solve the defects existing in the above-mentioned existing plasma arc welding equipment when welding right-angle components along the horizontal direction. Summary of the invention

[0005] The present application proposes a cabin welding machine for the production of energy storage battery cabins, which has the advantages of effectively improving the welding strength of the right-angle components of the battery cabin in the horizontal direction, having good load-bearing capacity and high safety and reliability. It is used to solve the problem that when welding right-angle components for battery cabins in existing plasma arc welding, the molten pool becomes spherical due to the influence of surface tension, and when welding in the horizontal direction, the contact area between the molten pool and the bottom plate is larger, while the contact area with the side panel is smaller, which greatly affects the connection strength between the two plates of the right-angle component after welding and its load-bearing capacity during future use, and there are major safety hazards.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cabin welding machine for producing energy storage battery cabins, comprising a plasma spray gun for welding a bottom plate and a side plate into a right-angle component, one end of the plasma spray gun is fixedly connected to a driving mechanism, and then under the action of the driving mechanism, the plasma spray gun can be driven to move linearly along the connecting seam between the bottom plate and the side plate, a wire guide component for guiding the welding wire is fixedly installed in the middle of one side of the outer surface of the bottom plate, and the extension line of the central axis of the plasma spray gun and the wire guide component is located on the connecting seam between the bottom plate and the side plate, and then the plasma spray gun can be used to weld the bottom plate and the side plate. The sprayed high-temperature plasma beam melts the connecting seams of the bottom plate and the side plate and the welding wire to form a molten pool. A spray component is fixedly installed on one side of the bottom of the outer surface of the bottom plate. One side of the outer surface of the spray component is provided with a main air intake pipeline connected to its inner cavity, and the other end of the main air intake pipeline is connected to a high-temperature air pump. The spray component can be used to spray a high-temperature airflow to the molten pool between the bottom plate and the side plate. While reducing its cooling speed, the impact force of the high-temperature airflow is used to make the molten pool approach one side of the side plate, so as to increase the contact area between the molten pool and the side plate, and increase the welding strength between the bottom plate and the side plate.

[0007] Furthermore, the wire guide component is located in front of the plasma spray gun which moves linearly along the direction of the connecting seam between the bottom plate and the side plate for welding, and the other end of the wire guide component is connected to the welding wire feeding mechanism, so that the welding wire can be stably fed to the connecting seam between the bottom plate and the side plate through the wire guide component to perform welding operations.

[0008] Further, an annular groove is provided inside the guide wire component, and a piston is movably sleeved in the annular groove, and the piston is transmission-connected to the guide wire component through an elastic member arranged at the bottom of the inner cavity of the annular groove, and a plurality of through holes arranged in an annular array and connecting the annular groove and the inner cavity of the guide wire component are provided inside the guide wire component, and the through holes are located above the piston, and a connecting hole is provided on one side of the bottom of the outer surface of the guide wire component, and the connecting hole is connected to the inner cavity of the injection component through a connecting pipe, and a guide wire component connected to its inner cavity is provided on one side of the outer surface of the auxiliary air intake pipeline, and the other end of the guide wire component is connected to the high-temperature air pump:

[0009] Among them, for the setting of the wire guide component and the structure thereon, the high-temperature airflow flowing in the ejection component can be regulated according to the diameter of the welding wire guided in the wire guide component:

[0010] When the diameter of the welding wire guided in the wire guide component is small, the gap between the welding wire and the inner wall of the wire guide component becomes larger, so that the high-temperature airflow entering through the auxiliary air intake pipeline can completely flow out through the gap formed by the welding wire and the inner wall of the wire guide component without affecting the high-temperature airflow flowing in the ejection component;

[0011] When the diameter of the welding wire guided in the wire guide component is large, the gap between it and the inner wall of the wire guide component becomes smaller, so that the high-temperature airflow entering through the auxiliary air intake pipe has no time to flow out, thereby squeezing the piston and compressing the elastic part, until the outer wall of the piston and the connecting hole are staggered, causing a part of the high-temperature airflow to enter the injection component through the connecting pipe, so as to automatically compensate and increase the circulation amount of the high-temperature airflow in the injection component, and increase its impact force on the larger molten pool.

[0012] Furthermore, the connecting hole is set as a linear hole structure, and initially it completely overlaps with the outer surface of the piston. As the downward displacement of the piston increases, the flow rate of the high-temperature gas through the connecting hole also increases in direct proportion. Therefore, according to the welding wires of different specifications and diameters guided in the wire guide component, the flow rate of the high-temperature airflow in the injection component can be flexibly adjusted, and different impact forces can be generated on the molten pool between the bottom plate and the side plate.

[0013] Furthermore, the interior of the guide wire component is provided with an air guide hole connected to its inner cavity, and the other end of the air guide hole is connected to the outer surface of the guide wire component, so that the high-temperature airflow in the inner cavity of the guide wire component can be guided and discharged through the air guide hole, and it will not be sprayed along the central axis of the guide wire component to the connecting seam between the bottom plate and the side plate, so as to cause impact damage to the plasma arc shielding gas in the plasma spray gun.

[0014] Furthermore, the air flow temperature generated by the high-temperature air pump is always lower than the molten pool temperature generated by the bottom plate and the side plate during welding operations, thereby effectively preventing the molten pool from being blown away and unevenly due to excessive air flow temperature in the injection component.

[0015] Furthermore, the plasma spray gun is arranged in an inclined manner under the action of the driving mechanism, and its axis is located on the extension surface of the welding groove of the bottom plate and the side plate, so that the welds therebetween can be evenly distributed on the bottom plate and the side plate, so as to effectively improve the welding strength between the bottom plate and the side plate. The beneficial effects of the present invention are as follows:

[0016] The present application provides a cabin welding machine for the production of energy storage battery cabins. With respect to the setting of the injection component and the guide wire component, the injection component can be used to spray high-temperature airflow to the molten pool between the bottom panel and the side panel, while reducing its cooling rate. At the same time, the impact force of the high-temperature airflow is used to make the molten pool approach one side of the side panel to increase the contact surface therebetween, thereby effectively increasing the welding strength between the bottom panel and the side panel. At the same time, according to the different diameters of the welding wire guided in the guide wire component, the flow rate of the high-temperature airflow in the injection component can be automatically compensated and increased, and its impact force on the larger molten pool can be increased, thereby effectively improving the application scope of the welding machine and further improving its welding strength to the bottom panel and the side panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a front view of the structure of the present invention;

[0020] Figure 3 A top view of the structure of the present invention;

[0021] Figure 4 It is a back view of the structure of the present invention;

[0022] Figure 5 The structure of the present invention Figure 4 An enlarged schematic diagram of point A.

[0023] In the figure: 1-bottom plate, 2-side plate, 3-plasma spray gun, 4-injection component, 5-main air intake pipeline, 6-wire guide component, 7-auxiliary air intake pipeline, 8-connecting pipeline, 9-annular groove, 10-piston, 11-elastic member, 12-through hole, 13-connecting hole, 14-air guide hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 , Figure 2As shown, a cabin welding machine for producing energy storage battery cabins includes a plasma spray gun 3 for welding a bottom plate 1 and a side plate 2 into a right-angle component. One end of the plasma spray gun 3 is fixedly connected to a driving mechanism, and the driving mechanism can drive the plasma spray gun 3 to move linearly along the connecting seam between the bottom plate 1 and the side plate 2. A wire guide component 6 for guiding the welding wire is fixedly installed in the middle of one side of the outer surface of the bottom plate 1, and the extension line of the central axis of the plasma spray gun 3 and the wire guide component 6 is located on the connecting seam between the bottom plate 1 and the side plate 2, so that the high-temperature plasma beam ejected from the plasma spray gun 3 can be used. The connecting seams of the bottom plate 1 and the side plate 2 and the welding wire are melted to form a molten pool, and an injection component 4 is fixedly installed on one side of the bottom of the outer surface of the bottom plate 1, and one side of the outer surface of the injection component 4 is provided with a main air intake pipe 5 connected to its inner cavity, and the other end of the main air intake pipe 5 is connected to a high-temperature air pump, so that the injection component 4 can be used to spray a high-temperature airflow to the molten pool between the bottom plate 1 and the side plate 2. While reducing its cooling speed, the impact force of the high-temperature airflow is used to make the molten pool close to one side of the side plate 2, so as to increase the contact area between the molten pool and the side plate 2, and increase the welding strength between the bottom plate 1 and the side plate 2.

[0026] like Figure 3 As shown, in the present technical solution, the wire guide component 6 is located in front of the plasma spray gun 3 which moves linearly along the direction of the connection seam between the bottom plate 1 and the side plate 2 for welding, and the other end of the wire guide component 6 is connected to the welding wire feeding mechanism, so that the welding wire can be stably fed to the connection seam between the bottom plate 1 and the side plate 2 through the wire guide component 6 and the welding operation can be performed.

[0027] like Figure 1 , Figure 4 as well as Figure 5 As shown, in the present technical solution, an annular groove 9 is provided inside the guide wire component 6, and a piston 10 is movably sleeved in the annular groove 9, and the piston 10 is transmission-connected to the guide wire component 6 through an elastic member 11 arranged at the bottom of the inner cavity of the annular groove 9, and a plurality of through holes 12 arranged in an annular array and connecting the annular groove 9 and the inner cavity of the guide wire component 6 are provided inside the guide wire component 6, and the through hole 12 is located above the piston 10, and a connecting hole 13 is provided on one side of the bottom of the outer surface of the guide wire component 6, and the connecting hole 13 is connected to the inner cavity of the injection component 4 through the connecting pipe 8, and a guide wire component 6 connected to its inner cavity is provided on one side of the outer surface of the auxiliary air intake pipeline 7, and the other end of the guide wire component 6 is connected to the high-temperature air pump:

[0028] Among them, for the arrangement of the wire guide component 6 and the structure thereon, the high-temperature airflow flowing in the ejection component 4 can be regulated according to the diameter of the welding wire guided in the wire guide component 6:

[0029] When the diameter of the welding wire guided in the wire guide component 6 is small, the gap between the welding wire and the inner wall of the wire guide component 6 becomes larger, so that the high-temperature airflow entering through the auxiliary air intake pipe 7 can completely flow out through the gap formed by the welding wire and the inner wall of the wire guide component 6 without affecting the high-temperature airflow flowing in the ejection component 4;

[0030] When the diameter of the welding wire guided in the wire guide component 6 is large, the gap between it and the inner wall of the wire guide component 6 becomes smaller, so that the high-temperature airflow entering through the auxiliary air intake pipe 7 has no time to flow out, and squeezes the piston 10 and compresses the elastic part 11, until the outer wall of the piston 10 and the connecting hole 13 are offset from each other, causing a part of the high-temperature airflow to enter the injection component 4 through the connecting pipe 8, so as to automatically compensate and increase the flow rate of the high-temperature airflow in the injection component 4, and increase its impact force on the larger molten pool.

[0031] like Figure 5 As shown, in the present technical solution, the connecting hole 13 is set as a linear hole structure, and initially it completely overlaps with the outer surface of the piston 10, and as the displacement of the piston 10 moves downward increases, the flow rate of the high-temperature gas through the connecting hole 13 also increases in direct proportion, and then the flow rate of the high-temperature airflow in the injection component 4 can be flexibly adjusted according to the welding wires of different specifications and diameters guided in the wire guide component 6, so that it can produce different sizes of impact force on the molten pool between the bottom plate 1 and the side plate 2.

[0032] like Figure 4 As shown, in the present technical solution, an air guide hole 14 connected to the inner cavity of the guide wire component 6 is provided inside, and the other end of the air guide hole 14 is connected to the outer surface of the guide wire component 6, so that the high-temperature airflow in the inner cavity of the guide wire component 6 can be guided and discharged through the air guide hole 14, and it will not be sprayed along the central axis of the guide wire component 6 to the connecting seam between the bottom plate 1 and the side plate 2, so as to cause impact damage to the plasma arc protection gas in the plasma spray gun 3.

[0033] In this technical solution, the air flow temperature generated by the high-temperature air pump is always lower than the molten pool temperature generated by the bottom plate 1 and the side plate 2 during welding operations, thereby effectively preventing the molten pool from being blown away and uneven due to the excessively high air flow temperature in the injection component 4.

[0034] like Figure 2 As shown, in the present technical solution, the plasma spray gun 3 is arranged at an angle under the action of the driving mechanism, and its axis is located on the extension surface of the welding groove of the bottom plate 1 and the side plate 2, so that the weld therebetween can be evenly distributed on the bottom plate 1 and the side plate 2, so as to effectively improve the welding strength between the bottom plate 1 and the side plate 2.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tank welding machine for producing an energy storage battery tank, comprising a plasma spray gun (3) for welding a bottom plate (1) and a side plate (2) into a right-angle member, one end of the plasma spray gun (3) being fixedly connected to a driving mechanism, characterized in that: A wire guide component (6) for guiding the welding wire is fixedly mounted in the middle of one side of the outer surface of the bottom plate (1), and an extension line of the central axis of the plasma spray gun (3) and the wire guide component (6) is located on the connecting seam between the bottom plate (1) and the side plate (2). An injection component (4) is fixedly mounted on one side of the bottom of the outer surface of the bottom plate (1), and a main air intake pipeline (5) connected to its inner cavity is provided on one side of the outer surface of the injection component (4), and the other end of the main air intake pipeline (5) is connected to a high-temperature air pump.

2. The tank body welding machine for producing energy storage battery tanks according to claim 1 is characterized in that: The wire guide component (6) is located in front of the plasma spray gun (3) for linearly moving welding along the direction of the connecting seam between the bottom plate (1) and the side plate (2), and the other end of the wire guide component (6) is connected to the welding wire feeding mechanism.

3. The tank body welding machine for producing energy storage battery tanks according to claim 2 is characterized in that: The guide wire component (6) is provided with an annular groove (9) inside, and a piston (10) is movably sleeved in the annular groove (9); the piston (10) is connected to the guide wire component (6) through an elastic member (11) arranged at the bottom of the inner cavity of the annular groove (9); the guide wire component (6) is provided with a through hole (12) connecting the annular groove (9) and the inner cavity of the guide wire component (6); and the through hole (12) is located above the piston (10); a connecting hole (13) is provided on one side of the bottom of the outer surface of the guide wire component (6); the connecting hole (13) is connected to the inner cavity of the injection component (4) through a connecting pipe (8); a guide wire component (6) connected to the inner cavity of the auxiliary air intake pipeline (7) is provided on one side of the outer surface, and the other end of the guide wire component (6) is connected to the high-temperature air pump.

4. The tank body welding machine for producing energy storage battery tanks according to claim 3 is characterized in that: The connection hole (13) is configured as a linear hole structure, and initially completely overlaps with the outer surface of the piston (10). As the displacement of the piston (10) moves downward increases, the flow rate of the high-temperature gas through the connection hole (13) also increases in direct proportion.

5. The tank body welding machine for producing energy storage battery tanks according to claim 4 is characterized in that: An air guide hole (14) connected to the inner cavity of the guide wire component (6) is provided inside the guide wire component (6), and the other end of the air guide hole (14) is connected to the outer surface of the guide wire component (6).

6. The tank body welding machine for producing energy storage battery tanks according to claim 5 is characterized in that: The air flow temperature generated by the high-temperature air pump is always lower than the molten pool temperature generated by the bottom plate (1) and the side plate (2) during welding operations.

7. The tank body welding machine for producing energy storage battery tanks according to claim 6 is characterized in that: The plasma spray gun (3) is arranged in an inclined manner under the action of the driving mechanism, and its axis is located on the extension surface of the welding groove of the bottom plate (1) and the side plate (2).

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