Electrode structure, assembly tool and assembly process

Abstract

The invention provides an electrode structure, an assembly tool and an assembly process, the electrode structure comprises a body part and an elastic sheet part, the body part is formed into an arc-shaped or annular structure, the body part and the elastic sheet part are bent, the elastic sheet part comprises a plurality of elastic sheets which are arranged at intervals along the circumferential direction of the body part, each elastic sheet comprises a first arm section and a second arm section which are bent, and the first arm section and the second arm section are bent. The first arm section is connected with the body part. The end, away from the first arm section, of the second arm section extends towards one side of the body part. According to the electrode structure provided by the invention, the first arm section forms the corresponding abutting surface matched with the thin-wall product by adopting the bent elastic sheet part, and meanwhile, the structure arrangement of the plurality of elastic sheets is beneficial to keeping abutting with the thin-wall product by utilizing the elasticity of the elastic sheets; therefore, stable contact between the electrode structure and the thin-wall product in the using process is guaranteed, and the problem that in the prior art, when annular or arc-shaped metal thin-wall structure products are welded, pseudo soldering is prone to occurring, and consequently the welding efficiency is affected is solved.

Description

Technical Field

[0001] The present invention relates to the technical field related to welding equipment, and in particular to an electrode structure, an assembly tool and an assembly process. Background Art

[0002] In the aviation, automotive and precision manufacturing industries, annular or curved metal thin-walled structural products, such as annular sheet metal honeycomb gas seals, have been widely used due to their light weight, high strength and thermal protection performance. In the manufacturing process of such products, two metal thin-walled structures are usually fixed together by resistance spot welding to ensure that the various components can maintain accurate positions in the subsequent brazing process, so as to meet the final assembly requirements and performance standards.

[0003] However, the traditional spot welding process encounters a series of difficulties when processing metal thin-walled structural products. Due to the lack of rigidity of such products, they are very easy to deform during spot welding, resulting in poor contact between the electrode and the workpiece, which in turn causes cold welding and sparking. This problem is particularly prominent in annular or arc-shaped thin-walled structures, because the electrode needs to evenly distribute current over the entire circumference to ensure welding quality and product dimensional accuracy.

[0004] In actual operation, in order to overcome the deformation of thin-walled metal structures, manual pre-positioning is required before spot welding, that is, manually marking the back plate as a position mark, and then manually adjusting the relative position of the workpiece through visual alignment before spot welding. This manual operation is not only labor-intensive and inefficient, but also difficult to ensure the consistency of assembly dimensions and the reliability of spot welding due to the existence of manual errors. Especially when complex shapes such as S-bends need to be aligned, frequent manual adjustments and welding further reduce production efficiency and assembly quality.

[0005] In addition, due to the large dimensional tolerance of annular or arc-shaped metal thin-walled structural products, it is difficult to achieve an ideal state with conventional electrodes. If the electrode size is too tight, it will be difficult to remove the workpiece, affecting the production process; if the electrode size is too loose, a gap will appear between the electrode and the workpiece, affecting the spot welding effect and causing welding defects. Therefore, when the product size changes, the existing technology is difficult to ensure good contact between the electrode and the workpiece, further exacerbating the above problems.

[0006] As can be seen from the above, in the prior art, when annular or arc-shaped metal thin-walled structural products are welded, cold welds are prone to occur, which affects the welding efficiency. Summary of the invention

[0007] The main purpose of the present invention is to provide an electrode structure, an assembly tool and an assembly process to solve the problem in the prior art that cold welds are easily generated during welding of annular or arc-shaped metal thin-walled structure products, thereby affecting welding efficiency.

[0008] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an electrode structure, which includes a main body and a spring portion, wherein the main body is formed into an arc or annular structure, the main body and the spring portion are bent, the spring portion includes a plurality of springs arranged at intervals along the circumference of the main body, the spring includes a first arm segment and a second arm segment which are bent, the first arm segment is connected to the main body, and the second arm segment extends toward one side of the main body away from one end of the first arm segment.

[0009] Furthermore, the first arm section is connected to an inner circumferential end of the main body.

[0010] Further, the second arm segment is parallel to the main body; and / or the first arm segment is perpendicular to the main body.

[0011] Furthermore, the main body portion and the spring sheet portion are an integrally formed structure.

[0012] Furthermore, the main body is a plate structure having a plurality of positioning holes arranged at circumferential intervals.

[0013] Furthermore, the spring piece portion is made of a metal elastic material so as to be able to conduct electricity and undergo elastic deformation.

[0014] Further, when the main body portion is an arc-shaped structure, one or more main body portions are provided. When multiple main body portions are provided, the multiple main body portions are connected in sequence to form a circular ring structure.

[0015] According to another aspect of the present invention, an assembly tool is provided, which includes a first tool piece, a second tool piece and the above-mentioned electrode structure, the first tool piece is annular, the main body is arranged on one end face of the first tool piece, the second arm segment is arranged on the other end face of the first tool piece, the first arm segment is arranged on one side of the inner circumference of the first tool piece, the first tool piece is arranged on one side of the top of the second tool piece, and the second tool piece is used to support an annular thin-walled product, the thin-walled product is arranged on the inner circumference of the first tool piece and abuts against the first arm segment.

[0016] Furthermore, the main body is fixed on the end face of the first tooling piece away from the second tooling piece, the second arm section is clamped and fixed between the first tooling piece and the second tooling piece, and the thin-walled product abuts against the side of the first arm section away from the first tooling piece.

[0017] Furthermore, a plurality of electrode structures are provided, the main bodies of the plurality of electrode structures are stacked, and the spring pieces of the plurality of electrode structures are cross-arranged along the circumferential direction to form a covering surface arranged on the inner side of the first tooling piece.

[0018] Furthermore, the spring piece is a rectangular structure, and a deformation space is formed between the spring piece and the inner circumference of the first tooling piece, and the deformation space is used for the spring piece to avoid after deformation; and / or the outer periphery of the thin-walled product is arranged tangent to the middle area of ​​the spring piece.

[0019] Furthermore, the second tooling piece is an annular structure, and the top end of the second tooling piece has an annular positioning boss for supporting the thin-walled product.

[0020] According to another aspect of the present invention, an assembly process is provided. The assembly process is applied to the above-mentioned assembly tool, and the assembly process includes:

[0021] Assembling the electrode structure onto the first tooling piece to form an integral installation;

[0022] Install the installation unit onto the top of the second tooling piece;

[0023] Installing the thin-walled product to one side of the interior of the electrode structure and supporting it on the second tooling piece, the electrode structure abutting against the thin-walled product;

[0024] Spot welding of thin-walled products.

[0025] Furthermore, before assembling the electrode structure onto the first tooling piece to form an integral installation, the assembly process further includes:

[0026] Cutting to form a main body portion and a spring sheet portion;

[0027] Pre-bending the main body portion and the spring sheet portion;

[0028] The end of the bending spring piece part away from the main body part forms a first arm section and a second arm section;

[0029] The bent multiple electrode structures are combined, and the spring sheet parts of the multiple electrode structures form a covering surface.

[0030] According to the technical solution of the present invention, the electrode structure includes a main body and a spring portion, the main body is formed into an arc or annular structure, the main body and the spring portion are bent, the spring portion includes a plurality of springs arranged at intervals along the circumference of the main body, the spring includes a first arm segment and a second arm segment that are bent, the first arm segment is connected to the main body, and the second arm segment extends toward one side of the main body away from one end of the first arm segment.

[0031] From the above, it can be seen that the electrode structure of the present application can be suitable for arc-shaped or annular thin-walled products. Specifically, the electrode structure of the present application adopts a spring sheet portion that is set by bending, and the spring sheet portion has a second arm segment that is set toward the side of the main body portion, so that the first arm segment forms a corresponding abutment surface that cooperates with the thin-walled product. Due to the multi-bending structure of the present application, it is convenient to position the electrode structure and improve the stability of the electrode structure setting; at the same time, the structural setting of multiple spring sheets is conducive to utilizing the elasticity of the spring sheets to maintain abutment with the thin-walled product, thereby ensuring that the electrode structure and the thin-walled product maintain stable contact during use, thereby improving the subsequent welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 The schematic diagram of the structure of the electrode structure of the present invention before being bent is shown, wherein the main body is in a ring structure;

[0034] Figure 2 The schematic diagram of the structure of the main body and the spring sheet of the present invention is shown, wherein the main body is in a ring-shaped structure;

[0035] Figure 3 A schematic diagram of the three-dimensional structure of the electrode structure of the present invention after bending is shown, wherein the main body is in a ring structure;

[0036] Figure 4 The schematic diagram of the structure of the two electrode structures of the present invention is shown, wherein the main body is an annular structure;

[0037] Figure 5 A schematic diagram of a three-dimensional structure of two electrode structures of the present invention is shown, wherein the main body is in a ring-shaped structure;

[0038] Figure 6 The schematic diagram of the structure of the electrode structure of the present invention before being bent is shown, wherein the main body is an arc-top structure;

[0039] Figure 7 It shows a schematic diagram of the structure of the main body and the spring sheet of the present invention being bent, wherein the main body is an arc-top structure;

[0040] Figure 8 A schematic diagram of the three-dimensional structure of the electrode structure of the present invention after bending is shown, wherein the main body is an arc-top structure;

[0041] Fig. 9 A schematic diagram of a three-dimensional structure of two electrode structures of the present invention is shown, wherein the main body is an arc-top structure;

[0042] Fig.10 A cross-sectional view of one angle of the assembly tool of the present invention is shown;

[0043] Fig.11 A cross-sectional view of another angle of the assembly tool of the present invention is shown;

[0044] Fig.12 A flowchart of the assembly process of the present invention is shown.

[0045] The above drawings include the following reference numerals:

[0046] 10. Main body; 110. Positioning hole; 20. Spring piece; 210. First arm section; 211. Covering surface; 220. Second arm section; 30. First tooling piece; 40. Second tooling piece; 410. Positioning boss; 50. Deformation space; 60. Thin-walled product; 610. Honeycomb; 620. Back panel. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0049] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0050] Embodiment 1

[0051] In order to solve the problem in the prior art that cold welds are easily generated during welding of annular or arc-shaped metal thin-walled structure products, which affects welding efficiency, the present application provides an electrode structure.

[0052] The metal thin-walled structure includes an annular thin-walled sheet metal back plate 620 and an annular thin-walled metal honeycomb 610 , and the electrode structure is used for spot welding and fixing the back plate 620 and the honeycomb 610 .

[0053] Specifically, during spot welding, the current flows from the honeycomb 610 side to the back plate 620 side and the back plate 620 needs to be supported and positioned, and the external welding electrode contacts the honeycomb 610. The electrode structure of the present application contacts the back plate 620 and contacts the back plate 620 as a whole and plays a supporting role. The electrode structure of the present application has multiple spring clips and multiple elastics to provide a certain clamping force to ensure that when welding other positions, there will be no virtual connection here to cause sparks and burn the back plate 620.

[0054] like Figures 1 to 9As shown, the electrode structure includes a main body portion 10 and a spring portion 20, the main body portion 10 is formed into an arc or annular structure, the main body portion 10 and the spring portion 20 are bent, the spring portion 20 includes a plurality of springs arranged at intervals along the circumference of the main body portion 10, the spring includes a first arm segment 210 and a second arm segment 220 that are bent, the first arm segment 210 is connected to the main body portion 10, and the second arm segment 220 extends toward one side of the main body portion 10 at an end away from the first arm segment 210.

[0055] Among them, the spring piece part 20 is made of metal elastic material so as to be able to conduct electricity and undergo elastic deformation. For example, the spring piece part 20 is a copper sheet. During use, the copper sheet can provide a certain clamping force and achieve a good current conduction effect, which is beneficial to improving welding efficiency.

[0056] The electrode structure of the present application can be applicable to arc-shaped or annular thin-walled products 60 , that is, when corresponding to arc-shaped or annular thin-walled products 60 , the electrode structure of the present application is a corresponding arc-shaped or annular structure to correspond to and match the welding thin-walled products 60 .

[0057] Specifically, the electrode structure of the present application adopts a spring sheet portion 20 that is set by bending, and the spring sheet portion 20 has a second arm segment 220 that is set toward one side of the main body portion 10, so that the first arm segment 210 forms a corresponding abutment surface that cooperates with the thin-walled product 60. Due to the multi-bending structure of the present application, it is convenient to position the electrode structure and improve the stability of the electrode structure setting. At the same time, the structural setting of multiple spring sheets is conducive to utilizing the elasticity of the spring sheets to maintain abutment with the thin-walled product 60, thereby ensuring that the electrode structure maintains stable contact with the thin-walled product 60 during use, thereby improving the welding efficiency in the later stage.

[0058] It can be understood that the structural setting of multiple spring pieces adopted in the present application is that when welding with a thin-walled product 60, multiple spring pieces abut against the outer periphery of the thin-walled product 60 to form a multi-point contact structure, so that when the thin-walled product 60 is deformed or the tolerance becomes larger, the corresponding spring pieces will undergo elastic deformation and abut against the thin-walled product 60, thereby ensuring that during the welding process, the spring pieces can maintain good contact with the thin-walled product 60 in real time.

[0059] In this embodiment, the first arm segment 210 is connected to the inner end of the main body 10, and the first arm segment 210 is arranged on the inner side of the main body 10 to facilitate welding and fixing of the thin-walled product 60 arranged on the inner side of the main body 10 when welding the thin-walled product 60.

[0060] like Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown, the second arm section 220 is parallel to the main body 10 .

[0061] Specifically, the second arm section 220 is arranged in parallel with the main body 10 , which facilitates fixing the second arm section 220 and the main body 10 during use of the electrode structure, thereby ensuring the stability of the installation of the electrode structure.

[0062] Furthermore, the first arm segment 210 is perpendicular to the main body 10 , that is, the first arm segment 210 is perpendicular to the main body 10 and the second arm segment 220 , which is conducive to the multiple first arm segments 210 of the multiple spring sheets forming a vertical abutment surface to facilitate wrapping around the periphery of the thin-walled product 60 .

[0063] In the present embodiment, a plurality of spring sheets are arranged at equal intervals along the circumference of the main body 10, and the plurality of spring sheets arranged at equal intervals provide evenly distributed abutting surfaces, thereby ensuring the provision of uniform current, so that the current passing through the outer peripheral side of the thin-walled product 60 remains the same, and there will be no problem of inconsistent local currents and thus cold welding; wherein the spring sheet is a rectangular plate structure, and the rectangular structure here refers to a roughly rectangular structure, so that the abutting surface formed by the first arm segment 210 that abuts against the thin-walled product 60 is a planar structure.

[0064] In this embodiment, the main body 10 and the spring part 20 are an integrally formed structure, that is, the main body 10 and the spring part 20 are formed by processing the same plate structure. In the process of manufacturing the electrode structure, the spring part 20 is first formed by laser engraving and cutting, and then the spring part 20 is bent and arranged, and then the electrode structure is formed by bending and arranging one end of the spring part 20 away from the main body.

[0065] like Figures 1 to 9 As shown, the main body 10 of the present application is a plate structure having a plurality of positioning holes 110 circumferentially spaced apart. The main body 10 is a whole plate structure. By arranging a plurality of positioning holes 110 on the main body 10, it is convenient to position and install the main body 10 on the first tooling part 30 through the mounting holes.

[0066] Specifically, the main body 10 may be fixedly connected to the first tooling piece 30 through a fastener, wherein the fastener is a screw or the like, and the fastener passes through the positioning hole 110 to be connected to the first tooling piece 30 .

[0067] Alternatively, the first tooling piece 30 may have a protruding structure, and the protruding structure can locate and lock the positioning hole 110 to achieve fixing of the main body 10 on the first tooling piece 30 .

[0068] In this embodiment, the main body 10 can be a complete annular plate structure, or it can be an arc-shaped plate structure with a certain curvature. When the main body 10 is an arc-shaped structure, the main body 10 is provided with one or more. When the main body 10 is provided with one, an arc-shaped electrode structure is formed; when there are multiple main body parts 10, multiple main body parts 10 are connected in sequence to form a circular ring structure, forming an electrode structure with an annular structure. Specifically, the multiple main body parts 10 can be a plate structure fixed by welding to form an annular structure.

[0069] Embodiment 2

[0070] like Fig.10 and Fig.11 As shown, this embodiment provides an assembly structure, and the assembly structure includes the electrode structure in the first embodiment.

[0071] Specifically, the assembly tooling includes a first tooling piece 30 and a second tooling piece 40. The first tooling piece 30 is annular. The main body 10 is arranged on one end surface of the first tooling piece 30. The second arm segment 220 is arranged on the other end surface of the first tooling piece 30. The first arm segment 210 is arranged on one side of the inner circumference of the first tooling piece 30. The first tooling piece 30 is arranged on the top side of the second tooling piece 40. The second tooling piece 40 is used to support an annular thin-walled product 60. The thin-walled product 60 is arranged on the inner circumference of the first tooling piece 30 and abuts against the first arm segment 210.

[0072] Among them, the first tooling part 30 is used to position and fix the electrode structure. When the thin-walled product 60 needs to be spot-welded and fixed, the first tooling part 30 and the electrode structure are first assembled to form an installed whole. The thin-walled product 60 is arranged inside the space formed by the first arm segment 210 and abuts against the spring sheet.

[0073] In this embodiment, the main body 10 is fixed on the end face of the first tooling piece 30 facing away from the second tooling piece 40, that is, the main body 10 is fixed on the top surface end of the first tooling piece 30, the second arm section 220 is clamped and fixed between the first tooling piece 30 and the second tooling piece 40, and the thin-walled product 60 abuts against the side of the first arm section 210 facing away from the first tooling piece 30.

[0074] Specifically, the main body 10 is fixedly connected to the top surface of the first tooling piece 30 through the positioning hole 110. The main body 10 can be fixedly connected to the first tooling piece 30 through a fastener, wherein the fastener is a screw or the like, and the fastener passes through the positioning hole 110 and is connected to the first tooling piece 30; or the first tooling piece 30 can have a protruding structure, which can position and lock the positioning hole 110 to fix the main body 10 on the first tooling piece 30.

[0075] The second arm segment 220 is clamped and fixed by the first tooling piece 30 and the second tooling piece 40, which is conducive to fixing the electrode structure. When the thin-walled product 60 needs to be taken out after welding, since the second arm segment 220 is clamped and fixed between the first tooling piece 30 and the second tooling piece 40, the removal of the thin-walled product 60 will not affect the setting of the electrode structure, so as to achieve a reusable effect. At the same time, the fixing of the main body 10 of the electrode structure and the second arm segment 220 is also conducive to ensuring the elastic deformation of the first arm segment 210, avoiding the phenomenon that the first arm segment 210 is subjected to the squeezing force of the thin-walled product 60 and the overall displacement of the electrode structure occurs, resulting in the inability to ensure that the first arm segment 210 and the thin-walled product 60 are kept in contact.

[0076] The bent structure of the main body 10 and the first arm segment 210 of the present application is advantageous in that when the thin-walled product 60 needs to be arranged inside the first tooling piece 30, the bent structure has a guiding function. Preferably, the bending area is chamfered to improve the installation efficiency of the overall structure.

[0077] like Figure 4 , Figure 5 and Fig. 9 As shown, a plurality of electrode structures are provided, the main bodies 10 of the plurality of electrode structures are stacked, and the spring pieces 20 of the plurality of electrode structures are cross-arranged along the circumferential direction to form a covering surface 211 arranged inside the first tooling piece 30 .

[0078] Specifically, a plurality of electrode structures are used in coordination to form a gapless covering surface 211 along the circumference of the main body 10 at the spring portion 20, especially at the first arm segment 210, to cover the inner side surface of the first tooling part 30, so that the entire covering surface 211 can be in contact with the thin-walled product 60, providing welding and clamping, which is beneficial to improving the welding effect.

[0079] In this embodiment, the spring sheet is a rectangular structure, and a deformation space 50 is formed between the spring sheet and the inner circumference of the first tooling piece 30. The deformation space 50 is used for the spring sheet to avoid deformation. The spring sheet contacts the outer periphery of the thin-walled product 60. When the thin-walled product 60 is deformed, the corresponding spring sheet will also be deformed. The deformation space 50 is used to provide a corresponding avoidance space to avoid interference that may cause the spring sheet to be unable to deform, resulting in the inability to match the thin-walled product 60 and the occurrence of cold welding.

[0080] Among them, the outer periphery of the thin-walled product 60 is set tangent to the middle area of ​​the spring sheet, and the planar structural abutment surface formed by the spring sheet and parallel to the axis of the first tooling piece 30 forms a tangent matching structure with the outer periphery of the thin-walled product 60, and the thin-walled product 60 contacts and abuts against the central area of ​​each spring sheet.

[0081] In this embodiment, the second fixture 40 is an annular structure, and the top of the second fixture 40 has an annular positioning boss 410 for supporting the thin-walled product 60. The positioning boss 410 is used to support the annular honeycomb 610, and the corresponding top surface end of the second fixture 40 is also provided with a positioning structure for positioning the back plate 620, and the positioning structure can be a ring groove structure to fix the back plate 620. After the mounting unit formed by the first fixture 30 and the electrode structure is mounted to the top end of the second fixture 40, the thin-walled product 60 is mounted from the internal space of the first fixture 30 to the top surface of the second fixture 40.

[0082] Embodiment 3

[0083] This embodiment provides an assembly process, and specifically the assembly process is applied to the assembly tool in implementation two.

[0084] like Fig.12 As shown, the assembly process includes:

[0085] Assembling the electrode structure onto the first tooling piece 30 to form an integral installation;

[0086] Install the installation unit to the top of the second tooling member 40;

[0087] The thin-walled product 60 is mounted on one side of the inner portion of the electrode structure and supported on the second tooling member 40 , so that the electrode structure abuts against the thin-walled product 60 ;

[0088] The thin-walled product 60 is spot welded.

[0089] The electrode structure is first assembled on the first tooling piece 30 , and then the assembly is mounted on the second tooling piece 40 , which is conducive to facilitating the installation and fixation of the electrode structure.

[0090] Specifically, the main body 10 is fixedly connected to the first tooling piece 30, and the first tooling piece 30 and the second tooling piece 40 clamp and fix the second arm segment 220, thereby ensuring that the first arm segment 210 can be stably arranged on the inner side of the first tooling piece 30, and abut against the thin-walled product 60, thereby ensuring good contact between the electrode structure and the thin-walled product 60. At the same time, the fixing of the main body 10 and the second arm segment 220 of the electrode structure is also conducive to ensuring the generation of elastic deformation of the first arm segment 210, avoiding the phenomenon that the entire electrode structure is offset after the first arm segment 210 is subjected to the squeezing force of the thin-walled product 60, resulting in the inability to ensure that the first arm segment 210 and the thin-walled product 60 are maintained in abutment.

[0091] In this embodiment, during the spot welding of the thin-walled product 60, the first arm segment 210 of the electrode structure is kept in contact with the back plate 620 of the thin-walled product 60, and the spot welding is achieved by contacting the surface of the honeycomb 610 away from the back plate 620 through the other pole piece of the spot welding tool.

[0092] In this embodiment, before assembling the electrode structure onto the first tooling piece 30 to form an integral assembly, the assembly process further includes:

[0093] Cutting to form the main body portion 10 and the spring piece portion 20;

[0094] Pre-bending the main body portion 10 and the spring sheet portion 20;

[0095] The end of the bent spring portion 20 away from the main body portion 10 forms a first arm segment 210 and a second arm segment 220;

[0096] The bent multiple electrode structures are combined, and the spring pieces 20 of the multiple electrode structures form a covering surface 211 .

[0097] The body and the spring part 20 are an integrally formed structure, that is, the body 10 and the spring part 20 are formed by processing the same plate structure. In the process of manufacturing the electrode structure, the spring part 20 is first formed by laser engraving and cutting, and then the spring part 20 is bent and arranged, and then the electrode structure is formed by bending and arranging one end of the spring part 20 away from the body.

[0098] In this embodiment, the electrode structure is provided with a plurality of body parts 10 of the plurality of electrode structures being stacked, and the spring parts 20 of the plurality of electrode structures being cross-arranged along the circumferential direction to form a covering surface 211 arranged on the inner side of the first tooling piece 30. Specifically, the plurality of electrode structures are used to cooperate to realize that the spring part 20, especially the first arm section 210, forms a covering surface 211 that is formed without gaps along the circumferential direction of the body part 10 to cover the inner side surface of the first tooling piece 30, thereby achieving that the entire covering surface 211 can be in contact with the thin-walled product 60, providing welding and clamping, which is conducive to improving the welding effect.

[0099] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0100] The electrode structure of the present application can be applicable to arc-shaped or annular thin-walled products 60. Specifically, the electrode structure of the present application adopts a spring piece portion 20 set by bending, and the spring piece portion 20 has a second arm segment 220 set toward the side of the main body portion 10, so that the first arm segment 210 forms a corresponding abutment surface that cooperates with the thin-walled product 60. Due to the multi-bending structure of the present application, it is convenient to position the electrode structure and improve the stability of the electrode structure setting; at the same time, the structural setting of multiple spring pieces is conducive to utilizing the elasticity of the spring pieces to maintain abutment with the thin-walled product 60, thereby ensuring that the electrode structure and the thin-walled product 60 maintain stable contact during use, thereby improving the welding efficiency in the later stage.

[0101] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0102] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0103] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrode structure, characterized in that: The electrode structure comprises: A main body (10), wherein the main body (10) is formed into an arc-shaped or annular structure; A spring sheet portion (20), wherein the main body portion (10) and the spring sheet portion (20) are bent, wherein the spring sheet portion (20) comprises a plurality of spring sheets spaced apart along the circumference of the main body portion (10), wherein the spring sheet comprises a first arm segment (210) and a second arm segment (220) which are bent, wherein the first arm segment (210) is connected to the main body portion (10), and the second arm segment (220) extends away from one end of the first arm segment (210) toward one side of the main body portion (10).

2. The electrode structure according to claim 1, characterized in that: The first arm section (210) is connected to an inner circumferential end of the main body (10).

3. The electrode structure according to claim 1, characterized in that: The second arm section (220) is parallel to the main body (10); and / or The first arm section (210) is perpendicular to the main body (10).

4. The electrode structure according to claim 1, characterized in that: The main body (10) and the spring sheet (20) are an integrally formed structure.

5. The electrode structure according to claim 1, characterized in that: The main body (10) is a plate structure having a plurality of positioning holes (110) arranged at circumferential intervals.

6. The electrode structure according to claim 1, characterized in that: The spring piece part (20) is made of a metal elastic material so as to be able to conduct electricity and undergo elastic deformation.

7. The electrode structure according to claim 1, characterized in that: When the main body (10) is an arc-shaped structure, One or more main body parts (10) are provided. When more than one main body parts (10) are provided, the more than one main body parts (10) are connected in sequence to form a circular ring structure.

8. An assembly tool, characterized in that: The assembly tool comprises: The electrode structure according to any one of claims 1 to 7; An annular first tooling piece (30), wherein the main body (10) is arranged on one end surface of the first tooling piece (30), the second arm section (220) is arranged on the other end surface of the first tooling piece (30), and the first arm section (210) is arranged on one side of the inner circumference of the first tooling piece (30); A second tooling piece (40), wherein the first tooling piece (30) is arranged on a top side of the second tooling piece (40), and the second tooling piece (40) is used to support an annular thin-walled product (60), wherein the thin-walled product (60) is arranged on an inner circumference side of the first tooling piece (30) and abuts against the first arm segment (210).

9. The assembly tool according to claim 8, characterized in that: The main body (10) is fixed on the end face of the first tooling piece (30) facing away from the second tooling piece (40), the second arm section (220) is clamped and fixed between the first tooling piece (30) and the second tooling piece (40), and the thin-walled product (60) is in contact with a side of the first arm section (210) facing away from the first tooling piece (30).

10. The assembly tool according to claim 9, characterized in that: A plurality of electrode structures are provided, the main bodies (10) of the plurality of electrode structures are stacked, and the spring pieces (20) of the plurality of electrode structures are cross-arranged along the circumferential direction to form a covering surface (211) provided on the inner side of the first tooling piece (30).

11. The assembly tool according to claim 8, characterized in that: The spring piece is a rectangular structure. A deformation space (50) is formed between the spring sheet and the inner circumferential surface of the first tooling piece (30), and the deformation space (50) is used for the spring sheet to avoid the deformation; and / or The outer periphery of the thin-walled product (60) is arranged tangent to the middle area of ​​the spring sheet.

12. The assembly tool according to claim 8, characterized in that: The second tooling piece (40) is an annular structure. The top end of the second tooling piece (40) has an annular positioning boss (410) for supporting the thin-walled product (60).

13. An assembly process, characterized in that: The assembly tool used in any one of claims 8 to 12, wherein the assembly process comprises: Assembling the electrode structure onto the first tooling piece (30) to form an integral installation; Installing the installation unit onto the top end of the second tooling member (40); The thin-walled product (60) is installed on one side of the interior of the electrode structure and supported on the second tooling piece (40), wherein the electrode structure is in contact with the thin-walled product (60); The thin-walled product (60) is spot welded.

14. The assembly process according to claim 13, characterized in that: Before assembling the electrode structure onto the first tooling piece (30) to form an installed whole, the assembly process further includes: Cutting to form a main body portion (10) and a spring sheet portion (20); Pre-bending the main body portion (10) and the spring sheet portion (20); Bending one end of the elastic sheet portion (20) away from the main body portion (10) to form a first arm segment (210) and a second arm segment (220); The bent multiple electrode structures are combined, and the spring sheet parts (20) of the multiple electrode structures form a covering surface (211).

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