Battery welding nozzle pressing tooling fixture

Abstract

The utility model provides a kind of battery welding press mouth tooling fixture, comprising: composite copper nozzle, including upper copper nozzle, lower copper nozzle being set through and through uniformly;The lower copper nozzle is detachably sleeved on the upper copper nozzle, and annular clearance cavity is formed between the outer wall of the upper copper nozzle and the inner wall of the lower copper nozzle;The bottom of the lower copper nozzle is provided with a cylinder portion extending downward, and the bottom of the upper copper nozzle is located in the cylinder portion;The lower end of the annular clearance cavity is communicated with the inner side of the cylinder portion;The outer wall of the lower copper nozzle is provided with at least two air inlet ends communicated with the annular clearance cavity, and the outer wall of the upper copper nozzle is provided with dust extraction air outlet;Fixed support plate;The fixed support plate is movably connected with the upper copper nozzle through the connecting assembly.The utility model can quickly cover the welding surface with protective gas, making the welding surface texture clear, and greatly improving the welding quality.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, and in particular to a battery welding nozzle tooling fixture. Background Technology

[0002] The original battery welding nozzle fixture structure only has a single air inlet. This fixture structure can blow protective gas evenly by setting an air inlet at the bottom of the copper nozzle, but it has the problem of slow coverage of the welding surface, resulting in unclear welding surface texture and low welding quality. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery welding nozzle tooling fixture, which can quickly cover the welding surface with protective gas, making the welding surface texture clear and greatly improving the welding quality.

[0004] The embodiments of this utility model are achieved through the following technical solutions: A battery welding nozzle tooling fixture includes: A composite copper nozzle includes an upper copper nozzle and a lower copper nozzle, both of which are vertically connected. The lower copper nozzle is detachably fitted onto the upper copper nozzle, and an annular gap cavity is formed between the outer wall of the upper copper nozzle and the inner wall of the lower copper nozzle. A cylindrical portion extends downward from the bottom of the lower copper nozzle, and the bottom of the upper copper nozzle is located inside the cylindrical portion. The lower end of the annular gap cavity communicates with the inner side of the cylindrical portion. The outer wall of the lower copper nozzle is provided with at least two air inlets communicating with the annular gap cavity, and the outer wall of the upper copper nozzle is provided with a dust extraction outlet. A fixed support plate is movably connected to the upper copper nozzle via a connecting assembly.

[0005] According to a preferred embodiment, the lower port of the cylindrical portion near the annular gap cavity is provided with an inclined surface to guide the protective gas of the annular gap cavity to flow to the inner side of the cylindrical portion.

[0006] According to a preferred embodiment, the bottom of the upper copper nozzle is inclined, wider at the top and narrower at the bottom, and the lower copper nozzle is fitted onto the bottom outer wall of the upper copper nozzle.

[0007] According to a preferred embodiment, the dust extraction outlet extends from the top outer wall of the upper copper nozzle, and the lower copper nozzle is located below the dust extraction outlet.

[0008] According to a preferred embodiment, the connecting assembly includes an elastic element and a guide post. The guide post is disposed at the bottom of the fixed support plate, and the lower end of the guide post movably passes through the top of the upper copper nozzle and extends into the upper copper nozzle. The elastic element is sleeved on the guide post.

[0009] According to a preferred embodiment, at least two of the air inlet ends are arranged in parallel and tangent to the annular gap cavity, and the inner wall of the lower copper nozzle is provided with spiral patterns.

[0010] According to a preferred embodiment, a height measuring column is vertically provided on the side wall of the lower copper nozzle, and the height measuring column vertically penetrates the fixed support plate.

[0011] According to a preferred embodiment, each guide post is fitted with an elastic element, which is a spring, and at least four guide posts are evenly distributed on the top of the upper copper nozzle.

[0012] According to a preferred embodiment, the top of the upper copper nozzle has a plurality of guide grooves that are adapted to the guide post. The guide grooves are provided with a first guide groove and a second guide groove above and below. When the guide post is subjected to force, it can extend into the second guide groove.

[0013] According to a preferred embodiment, the dust extraction outlet is connected to an exhaust pipe, the top of which penetrates the fixed support plate; the exhaust pipe is curved, and a limit block is provided on the outer wall of the exhaust pipe.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: This invention is provided with at least two air inlet ends that communicate with the annular gap cavity, which can greatly increase the air intake and output of the annular gap cavity to the cylinder, and can make the welding surface quickly covered by protective gas, resulting in clear welding surface texture and greatly improving the welding quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of a battery welding nozzle tooling fixture provided in an embodiment of this utility model; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of BB; Figure 3 A side view of a battery welding nozzle tooling fixture provided in an embodiment of this utility model; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of FF; Figure 5 for Figure 3Another cross-sectional structural diagram; Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of another embodiment.

[0017] Icons: 1. Upper copper nozzle; 2. Lower copper nozzle; 21. Cylinder section; 3. Annular gap cavity; 4. Air inlet; 5. Dust extraction outlet; 6. Fixed support plate; 7. Inclined surface; 8. Elastic element; 9. Guide column; 10. Height measuring column; 11. First guide groove; 12. Second guide groove; 13. Air outlet pipe; 14. Limiting block; 15. Spiral pattern. Detailed Implementation

[0018] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Example

[0021] Please refer to Figures 1 to 6 A battery welding nozzle fixture includes: a composite copper nozzle, comprising an upper copper nozzle 1 and a lower copper nozzle 2, both of which are vertically connected; the lower copper nozzle 2 is detachably fitted onto the upper copper nozzle 1, and an annular gap cavity 3 is formed between the outer wall of the upper copper nozzle 1 and the inner wall of the lower copper nozzle 2; a cylindrical portion 21 extends downward from the bottom of the lower copper nozzle 2, and the bottom of the upper copper nozzle 1 is located inside the cylindrical portion 21; the lower end of the annular gap cavity 3 is connected to the inner side of the cylindrical portion 21; the outer wall of the lower copper nozzle 2 is provided with at least two air inlets 4 communicating with the annular gap cavity 3, and the outer wall of the upper copper nozzle 1 is provided with a dust extraction outlet 5; a fixed support plate 6; the fixed support plate 6 is movably connected to the upper copper nozzle 1 through a connecting assembly.

[0022] Preferably, the lower port of the cylindrical part 21 near the annular gap cavity 3 is provided with an inclined surface 7 to guide the protective gas of the annular gap cavity 3 to flow to the inner side of the cylindrical part 21.

[0023] Preferably, the bottom of the upper copper nozzle 1 is inclined, wider at the top and narrower at the bottom, and the lower copper nozzle 2 is fitted onto the bottom outer wall of the upper copper nozzle 1.

[0024] Preferably, the dust extraction outlet 5 extends from the top outer wall of the upper copper nozzle 1, and the lower copper nozzle 2 is located below the dust extraction outlet 5.

[0025] Preferably, the connecting assembly includes an elastic element 8 and a guide post 9. The guide post 9 is disposed at the bottom of the fixed support plate 6. The lower end of the guide post 9 can movably pass through the top of the upper copper nozzle 1 and extend into the upper copper nozzle 1. The elastic element 8 is sleeved on the guide post 9.

[0026] Preferably, at least two air inlet ends 4 are arranged in parallel and tangent to the annular gap cavity 3, and the inner wall of the lower copper nozzle 2 is provided with spiral patterns 15.

[0027] Preferably, a height measuring column 10 is vertically installed on the side wall of the lower copper nozzle 2, and the height measuring column 10 vertically penetrates the fixed support plate 6.

[0028] Preferably, each guide post 9 is fitted with an elastic element 8, which is a spring, and at least four guide posts 9 are evenly distributed on the top of the upper copper nozzle 1.

[0029] Preferably, the top of the upper copper nozzle 1 is evenly distributed with a number of guide grooves that are adapted to the guide post 9. The guide grooves are provided with a first guide groove 11 and a second guide groove 12 above and below. When the guide post 9 is subjected to force, it can extend into the second guide groove 12.

[0030] Preferably, the dust extraction outlet 5 is connected to an exhaust pipe 13, the top of which passes through the fixed support plate 6; the exhaust pipe 13 is curved, and a limiting block 14 is provided on the outer wall of the exhaust pipe 13. The limiting block 14 is used to limit the position of the exhaust pipe 13 relative to the fixed support plate 6.

[0031] The working principle of this utility model: This invention features at least two air inlets 4 communicating with the annular gap cavity 3, significantly increasing the air intake and output of the annular gap cavity 3 to the cylindrical section 21. This allows the welding surface to be quickly covered by protective gas, resulting in clear weld texture and greatly improving weld quality. The annular gap cavity 3 is a spatial region formed between the outer wall of the upper copper nozzle 1 and the inner wall of the lower copper nozzle 2. Protective gas can be input into this spatial region (annular gap cavity 3) through at least two air inlets 4. The protective gas passes through this spatial region (annular gap cavity 3) and is output from the bottom of the spatial region (annular gap cavity 3) to the inside of the cylindrical section 21. The annular gap cavity 3, with its cylindrical structure, wraps around the upper copper nozzle 1, and the protective gas is evenly output downwards towards the cylindrical section 21 through the annular gap cavity 3. The inner wall of the cylindrical section 21 is provided with an inclined surface 7, which effectively guides the protective gas downwards and evenly outputs it, ensuring that the output protective gas reaches the welding surface of the workpiece to be welded, thus preventing oxidation of the welding surface. When welding is performed under the pressure of the fixed support plate 6, the bottom of the cylinder 21 is kept pressed against the welding material, ensuring that the parts are in a compressed state. The bottom of the upper copper nozzle 1 is higher than the bottom of the cylinder 21 in vertical height. Therefore, the cylinder 21 first presses the parts, and the protective gas is output from the cylinder 21 after passing through the annular gap cavity 3. The top of the cylinder 21 is provided with an inclined surface 7 to guide the flow of the protective gas. The dust extraction outlet 5 is connected to the inner wall of the upper copper nozzle 1 and does not interfere with the annular gap cavity 3. In this embodiment, the two air inlets 4 are set in parallel to promote the input of a large amount of protective gas into the annular gap cavity 3, so that the annular gap cavity 3 is filled with protective gas and then output evenly. In addition, the two air inlets 4 are in opposite directions, and the inner wall of the lower copper nozzle 2 is provided with a spiral pattern 15, which can cause the two protective gases to form two spiral airflows and be transported downwards, greatly improving the transport efficiency and uniformity, and outputting in opposite directions and cross-winding within the annular gap cavity 3. The first guide groove 11 and the second guide groove 12 are provided to ensure that the guide post 9 can extend into the second guide groove 12 after being subjected to force. The elastic element 8 is selected as a spring, which can effectively buffer the pressure and reaction force on the part, and effectively protect the tooling fixture and the part.

[0032] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A battery welding nozzle tooling fixture, characterized in that, include: A composite copper nozzle includes an upper copper nozzle and a lower copper nozzle, both of which are vertically connected. The lower copper nozzle is detachably fitted onto the upper copper nozzle, and an annular gap cavity is formed between the outer wall of the upper copper nozzle and the inner wall of the lower copper nozzle. A cylindrical portion extends downward from the bottom of the lower copper nozzle, and the bottom of the upper copper nozzle is located inside the cylindrical portion. The lower end of the annular gap cavity communicates with the inner side of the cylindrical portion. The outer wall of the lower copper nozzle is provided with at least two air inlets communicating with the annular gap cavity, and the outer wall of the upper copper nozzle is provided with a dust extraction outlet. A fixed support plate is movably connected to the upper copper nozzle via a connecting assembly.

2. The battery welding nozzle fixture according to claim 1, characterized in that, The lower port of the cylindrical section near the annular gap cavity is provided with an inclined surface to guide the protective gas in the annular gap cavity to flow to the inner side of the cylindrical section.

3. The battery welding nozzle fixture according to claim 1, characterized in that, The bottom of the upper copper nozzle is inclined, wider at the top and narrower at the bottom, and the lower copper nozzle is fitted onto the bottom outer wall of the upper copper nozzle.

4. The battery welding nozzle fixture according to claim 3, characterized in that, The dust extraction outlet extends from the top outer wall of the upper copper nozzle, and the lower copper nozzle is located below the dust extraction outlet.

5. The battery welding nozzle fixture according to claim 1, characterized in that, The connecting assembly includes an elastic element and a guide post. The guide post is disposed at the bottom of the fixed support plate. The lower end of the guide post movably passes through the top of the upper copper nozzle and extends into the upper copper nozzle. The elastic element is sleeved on the guide post.

6. The battery welding nozzle fixture according to claim 1, characterized in that, At least two of the air inlets are arranged in parallel and tangent to the annular gap cavity, and the inner wall of the lower copper nozzle is provided with spiral patterns.

7. The battery welding nozzle fixture according to claim 1, characterized in that, A height measuring column is vertically installed on the side wall of the lower copper nozzle, and the height measuring column vertically penetrates the fixed support plate.

8. The battery welding nozzle fixture according to claim 5, characterized in that, Each of the guide posts is fitted with an elastic element, which is a spring, and at least four guide posts are evenly distributed on the top of the upper copper nozzle.

9. The battery welding nozzle fixture according to claim 5, characterized in that, The top of the upper copper nozzle has several guide grooves that are evenly distributed to match the guide post. The guide grooves are provided with a first guide groove and a second guide groove above and below. When the guide post is subjected to force, it can extend into the second guide groove.

10. The battery welding nozzle fixture according to claim 4, characterized in that, The dust extraction outlet is connected to an exhaust pipe, the top of which passes through the fixed support plate; the exhaust pipe is curved, and a limit block is provided on the outer wall of the exhaust pipe.

Images