Copying welding dust removal device

Abstract

The utility model discloses a profiling welding dust removal device which comprises a dust removal cavity which can fully surround or semi-surround a welding area and is matched with the welding area in shape, and the dust removal cavity is further provided with a welding hole for a welding head to stretch into. And the negative pressure assembly is communicated with a negative pressure opening formed in the side part I of the dust removal cavity through a negative pressure pipe. Thus, a profiling full-surrounding or half-surrounding structure is adopted, the surface of a welding area is easily attached, then melting beads and residues are sucked out through the negative pressure assembly, negative pressure can be evenly distributed, dust removal can be conducted on the welding area in an all-around mode, and the situation that dust and welding melting beads diffuse and escape towards the four sides in the welding process, and the welding area is affected is avoided; and the battery and the surrounding environment are further influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding dust removal, in particular to a profiling welding dust removal device. Background Technique

[0002] During the production of lithium-ion power batteries, when welding the battery cases, due to factors such as power and material, the dust concentration generated during welding is relatively high, which poses a great threat to the battery performance, safety and the dust concentration in the overall workshop. Due to the spatial layout and the requirements of the tooling beat, the structure of the existing dust collectors is relatively simple. Generally, a negative pressure pipe is introduced at the welding joint for simple negative pressure introduction. The negative pressure cannot be evenly distributed, and the dust suction can only be carried out on one side, resulting in the diffusion and escape of dust and welding beads in all directions during the welding process. Most of the dust residues cannot be completely processed under the release of energy, and the beads will also spread to the surface and fly everywhere, affecting the welding area and further affecting the battery and the surrounding environment. Content of the Utility Model

[0003] To solve the technical problems existing in the background technique, the utility model proposes a profiling welding dust removal device.

[0004] A profiling welding dust removal device proposed by the utility model includes:

[0005] A dust removal cavity that can fully surround or semi-surround the welding area and is adapted to the shape of the welding area. A welding hole for the welding head to extend into is also provided on the dust removal cavity.

[0006] A negative pressure assembly is connected to a negative pressure port opened on the side part Ⅰ of the dust removal cavity through a negative pressure pipe.

[0007] In summary, by adopting a profiling full-surrounding or semi-surrounding structure, it is easy to fit the surface of the welding area, and then the beads and residues are sucked out through the negative pressure assembly. The negative pressure can be evenly distributed, and the welding area can be dusted in all directions.

[0008] Preferably, the dust removal cavity is set as a full-surrounding structure, including a first cavity and a second cavity. The first cavity and the second cavity are detachably connected, and a through hole for the end of the battery to enter is provided at the rear of the dust removal cavity.

[0009] By adopting structural splicing, the interference of the complex on-site environment can be effectively avoided.

[0010] Preferably, an air inlet is opened at the upper part of the dust removal cavity. The air inlet is connected to a gas supply source through a gas pipe joint, and the air inlet is inclined towards the welding area.

[0011] On the one hand, adding an air inlet can form an air curtain to diffusely block welding residues. At the same time, blowing and negative pressure suction cooperate with each other. Under the action of the Coanda effect, a stable air flow channel is formed along the inner wall of the dust removal cavity, between the battery welding area and the clamping device of the welding assembly, thereby guiding the conveyance of impurities.

[0012] Preferably, a dust collection cavity for collecting large particle fusion beads and residues is provided at the lower part of the dust removal cavity, and the dust collection cavity is closed by a magnetic attraction baffle.

[0013] It can effectively hold large particle dust, and the magnetic attraction type baffle is convenient to disassemble and clean at any time.

[0014] Preferably, the inside of the negative pressure port faces the welding area, and the outside is inclined upward.

[0015] This enables the air flow to minimize the consumption of resistance during the flowing process, and at the same time avoids the accumulation of dust and fusion beads in dead corners.

[0016] Preferably, the dust removal cavity is set as a semi-surrounding structure and an arc-shaped structure.

[0017] Preferably, it further includes a lifting mechanism capable of driving the lifting of the dust removal cavity.

[0018] Preferably, the lifting mechanism is set as a cylinder. The end of the push rod of the cylinder is fixed to the dust removal cavity tooling through a tooling rack. Starting the cylinder drives the lifting of the tooling rack, and further drives the lifting of the dust removal cavity tooling.

[0019] During welding work, it moves through the cylinder to surround the welding area, and retracts when not working, without affecting the movement of the line body.

[0020] In summary, the present utility model has the following beneficial effects: The present utility model adopts a profiling full-surrounding or semi-surrounding structure, which is easy to fit the surface of the welding area. Then, the fusion beads and residues are sucked out through the negative pressure component, and the negative pressure can be evenly distributed, enabling all-round dust removal of the welding area, avoiding the problem that dust and welding fusion beads diffuse and escape in all directions during welding, affecting the welding area, and further affecting the battery and the surrounding environment.

[0021] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0022] Figure 1 It is a partial structural diagram of welding using the profiling welding dust removal device in the first embodiment of the present utility model;

[0023] Figure 2Structural diagram of the profiling welding dust removal device according to Embodiment 1 of the present utility model;

[0024] Figure 3 Schematic diagram of the air flow direction of the profiling welding dust removal device according to Embodiment 1 of the present utility model;

[0025] Figure 4 Partial structural diagram of welding using the profiling welding dust removal device according to Embodiment 2 of the present utility model;

[0026] Figure 5 Front view of the profiling welding dust removal device and the battery according to Embodiment 2 of the present utility model;

[0027] Figure 6 Side view of the profiling welding dust removal device and the battery according to Embodiment 2 of the present utility model.

[0028] Figures 1-3 Among them:

[0029] 1. First cavity; 2. Second cavity; 3. Dust collection cavity; 4. Air inlet; 5. Pipe joint; 6. Negative pressure port; 7. Welding head; 8. Battery;

[0030] Figures 4-6 Among them:

[0031] 21. Dust removal cavity; 22. Cylinder; 23. Tooling rack; 24. Dust removal cavity tooling; 25. Welding head; 26. Battery; 27. Negative pressure port. Specific implementation manner

[0032] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0033] Referring to the following drawings, a profiling welding dust removal device proposed in this embodiment includes:

[0034] A dust removal cavity that can fully surround or semi-surround the welding area and is adapted to the shape of the welding area (the shape of the dust removal cavity can be prepared by profiling according to the shape of the welding area), and a welding hole for the welding head to extend into is further provided on the dust removal cavity;

[0035] A negative pressure assembly that is communicated with a negative pressure port opened on the side I of the dust removal cavity through a negative pressure pipe.

[0036] Among them, the inside of the negative pressure port faces the welding area, and the outside is inclined upward, so that the air flow reduces the consumption of resistance as much as possible during the flowing process, and at the same time avoids the accumulation of dust and molten beads in the dead corners.

[0037] In this way, by adopting a profiling full-enclosure or semi-enclosure structure, it is easy to fit the surface of the welding area. Then, the molten beads and residues are sucked out through the negative pressure component, and the negative pressure can be evenly distributed, enabling all-round dust removal of the welding area, avoiding the problem that dust and welding molten beads diffuse and escape in all directions during the welding process, affecting the welding area and further affecting the battery and the surrounding environment.

[0038] Embodiment 1:

[0039] Referring to FIGS. 1-3, the dust removal cavity is set as a full-enclosure structure, including a first cavity 1 and a second cavity 2. The first cavity 1 and the second cavity 2 are detachably connected, and a through hole for the end of the battery 8 to enter is provided at the rear of the dust removal cavity. Among them, the first cavity 1 and the second cavity 2 are spliced in structure, which can effectively avoid interference from the complex on-site environment. Specifically, bolt connection can be adopted, depending on the specific situation.

[0040] Furthermore, a trapezoidal step can be provided at the joint edge of the first cavity 1 and the second cavity 2, which can effectively seal the cavity and improve the overall sealing performance.

[0041] Even further, an air inlet 4 is opened at the upper part of the dust removal cavity. The air inlet 4 is connected to the air supply source through an air pipe joint 5, and the air inlet 4 is inclined towards the welding area. During the welding process, dust and molten beads may diffuse along both ends of the dust removal cavity. Increasing the air inlet 4 can, on the one hand, form an air curtain to block the diffusion of welding residues. At the same time, blowing and negative pressure suction cooperate with each other. Under the action of the Coanda effect, a stable air flow channel is formed between the inner wall of the dust removal cavity, the battery welding area, and the clamping device of the welding assembly, so as to guide the transportation of impurities. Using circulating air, the structure is simple and the space occupation is reduced.

[0042] Among them, the positive pressure wind direction at the air inlet 4 can be adjusted. On the one hand, it strengthens the flow rate in the cavity, and on the other hand, it forms an air curtain to prevent the diffusion of dust and impurities.

[0043] Furthermore, a dust collection cavity 3 for collecting large-particle molten beads and residues is provided at the lower part of the dust removal cavity. The dust collection cavity 3 is closed by a magnetic attraction baffle. During the transportation process of the air flow in the welding process, the molten beads and residues can be physically cooled. Among them, there are inevitably large-particle molten beads and residues. After being cooled by the air flow, the wind speed cannot effectively transport them, and finally they fall into the dust collection cavity at the bottom. At the same time, in order to avoid the labor cost of cleaning, a magnetic attraction structure is adopted, which is convenient for disassembly and replacement and cleaning at any time.

[0044] Embodiment 2:

[0045] Referring to Figures 4-6As shown in the figure, the dust removal cavity 21 is set as a semi-surrounding structure and an arc-shaped structure; it also includes a lifting mechanism capable of driving the dust removal cavity 21 to lift. Specifically, the lifting mechanism is set as a cylinder 22, and the end of the push rod of the cylinder 22 is fixed to the dust removal cavity tooling 24 through a tooling rack 23. Starting the cylinder 22 drives the tooling rack 23 to lift, and then drives the dust removal cavity tooling 24 to lift, and drives the dust removal cavity 21 to lift.

[0046] In the solution of the second embodiment, the welding area is semi-surrounded by an arc to make it fit the battery surface more closely. At the same time, the negative pressure port 27 is also adjacent to the welding area. The laser welding head 25 is located below the dust removal cavity tooling 24, and the welding air flow moves upward. The cylinder 22 drives the tooling rack 23 to lift, and then drives the dust removal cavity tooling 24 to move up and down, and drives the dust removal cavity 21 to move up and down, avoiding affecting the movement of the line body; when in the welding process, the dust removal cavity 21 fits the welding surface, the negative pressure port 27 is facing the welding area, and negative pressure is transported from above. The whole process has a large negative pressure for dust removal work. Since the welding type is spot welding, the existing dust removal cannot build a dust removal tooling due to the interference problem between the clamping jaw and the line body movement. At the same time, its welding time is short and the amount of dust melting beads generated is small. Therefore, using a close-range semi-surrounding interface can solve the dust removal problem and avoid tooling interference.

[0047] It should be noted that during the welding work, the cylinder 22 moves to surround the welding area and retracts when not working, without affecting the movement of the line body.

[0048] At the same time, in order to better guide the air flow, the direction of the negative pressure port is adjusted so that it faces the welding area during work, and the Coanda effect is used to make the air flow guiding more obvious.

[0049] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0053] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A contour welding dust removal device, characterized in that: include: The dust removal cavity can fully or semi-enclose the welding area and is adapted to the shape of the welding area. The dust removal cavity is also provided with a welding hole for the welding head to extend into; The negative pressure component is connected to the negative pressure port opened on the side portion I of the dust removal chamber through a negative pressure pipe.

2. The contour welding dust removal device according to claim 1, characterized in that: The dust removal cavity is configured as a fully enclosed structure, including a first cavity and a second cavity, the first cavity and the second cavity are detachably connected, and a through hole for the battery end to enter is provided at the rear of the dust removal cavity.

3. The contour welding dust removal device according to claim 2, characterized in that: An air inlet is provided at the upper portion of the dust removal chamber, the air inlet is connected to an air supply source via an air pipe joint, and the air inlet is inclined toward the welding area.

4. The contour welding dust removal device according to claim 3, characterized in that: A dust collecting cavity for collecting large-particle melt beads and residues is provided at the lower part of the dust removal cavity, and the dust collecting cavity is closed by a magnetic baffle.

5. The contour welding dust removal device according to claim 4, characterized in that: The interior of the negative pressure port faces the welding area, and the exterior of the negative pressure port is arranged to be inclined upward.

6. The contour welding dust removal device according to claim 1, characterized in that: The dust removal cavity is configured as a semi-enclosed structure and an arc-shaped structure.

7. The contour welding dust removal device according to claim 6, characterized in that: It also includes a lifting mechanism that can drive the dust removal cavity to rise and fall.

8. The contour welding dust removal device according to claim 7, characterized in that: The lifting mechanism is configured as a cylinder, and the push rod end of the cylinder is fixed to the dust removal chamber tooling through a tooling frame. When the cylinder is started, the tooling frame is driven to be lifted and lowered, and the dust removal chamber tooling is further driven to be lifted and lowered.

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