A welding device for composite current collector

Abstract

The present invention provides a welding device for a composite current collector, which relates to the technical field of current collector welding, including a flexible control machine, a welding tool, a feeding assembly and a finished product collection assembly, wherein the flexible control machine includes an L-shaped frame, a z guide table is rotatably connected to the L-shaped frame, the z guide table is slidably connected to the y guide table up and down, the y guide table is slidably connected to the x guide block left and right, the x guide block is slidably connected to the tool mounting plate, the welding tool is mounted on the tool mounting plate, and the welding tool includes a 45KHz high-frequency welding tool head and a bottom roller. The 45KHz high-frequency welding tool head of the present invention can ensure that three layers of material are firmly welded together without light leakage, and the welding reliability is good. The design of the flexible control machine can adjust the spatial position of the 45KHz high-frequency welding tool head and the bottom roller according to actual conditions, reduce the influence of gravity on the raw material transmission process, so as to meet the welding requirements of different raw materials and effectively ensure the welding quality.

Description

Technical Field

[0001] The invention belongs to the field of current collector welding, and in particular relates to a welding device for a composite current collector. Background Art

[0002] The current collector is a key auxiliary material of lithium-ion batteries. Its main function is to conduct electricity. The current collector acts as a carrier of positive and negative active materials, and also acts as a collector and conductor of positive and negative electrons. It collects the current generated by the active materials of the battery to form a larger current output, thereby realizing the process of converting chemical energy into electrical energy. An ideal current collector often needs to have comprehensive properties such as high conductivity, good stability, good mechanical strength, and low cost.

[0003] The structure of the composite current collector is similar to a "sandwich", that is, the middle layer is organic, and the upper and lower layers are metal foils. Copper foil is usually selected as the negative electrode current collector, and aluminum foil is selected as the positive electrode current collector. Currently, the common organic layers in the middle are PET (polyethylene terephthalate), PP (polypropylene), PI (polyimide), etc. The composite between different materials can maximize the advantages of different materials.

[0004] The existing 40khz ultrasonic roll welding equipment is generally used for welding the collector. 40khz cannot firmly weld the three layers of material together. At the same time, the material is very easy to be welded through during the welding process, that is, light leakage occurs at the welding position of the three layers of material, and the welding reliability is poor. The tool head structure is generally fixed with a single-sided bearing, which has poor stability. In addition, since the spatial position of the tool head cannot be flexibly adjusted, the raw materials can only be fed parallel to the ground. For materials with larger mass or longer feeding lines, it is easy to bend downward under the influence of gravity during the welding process, causing misalignment between the layers, and ultimately leading to poor welding quality. Summary of the invention

[0005] The present invention provides a welding device for a composite current collector, which is used to solve at least one of the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention discloses a welding device for a composite current collector, comprising a flexible control machine, a welding tool, a feeding assembly and a finished product collection assembly, the flexible control machine comprises an L-shaped frame, the L-shaped frame is rotatably connected to a z guide table, the z guide table is slidably connected to a y guide table up and down, the y guide table is slidably connected to an x ​​guide block left and right, the x guide block is slidably connected to a tool mounting plate front and back, the welding tool is mounted on the tool mounting plate, the welding tool comprises a 45KHz high-frequency welding tool head and a bottom roller, and the 45KHz high-frequency welding tool head and the bottom roller are rotatably connected to two support seats.

[0007] Preferably, the bottom roller is rotatably connected to the two support seats through an electric rotating shaft 1, the two support seats are rotatably connected with an electric spacing adjustment screw, the electric spacing adjustment screw is threadedly connected with a rotating shaft mounting nut, an electric rotating shaft 2 is rotatably connected between the two rotating shaft mounting nuts, and a 45KHz high-frequency welding tool head is installed on electric rotating shaft 2.

[0008] Preferably, a spiral tube is provided at a position corresponding to the bottom roller on the tool mounting plate, the spiral tube is communicated with an external coolant supply mechanism, and a circulation loop is formed between the coolant supply mechanism and the spiral tube.

[0009] Preferably, the z guide table, the y guide table and the x guide block are all provided with power components, and the three power components are respectively used to drive the y guide table to slide up and down, drive the x guide block to slide left and right, and drive the tool mounting plate to slide forward and backward;

[0010] The power assembly can adopt any one of a cylinder mechanism, a hydraulic cylinder mechanism, a lead screw nut pair mechanism and a linear motor.

[0011] Preferably, the feeding assembly includes an organic layer electric feeding roller and metal foil feeding mechanisms symmetrically arranged on both sides of the organic layer electric feeding roller, the organic layer is wound on the organic layer electric feeding roller, and the two metal foil feeding mechanisms are used for feeding the metal foil one and the metal foil two respectively;

[0012] The two metal foil feeding mechanisms are installed on the back support block, and the back support block is rotatably connected with two sets of symmetrically arranged feeding spacing electric adjustment screws, and the feeding spacing electric adjustment screws are threadedly connected with feeding spacing adjustment nuts, and the two metal foil feeding mechanisms are fixedly connected to the feeding spacing adjustment nuts.

[0013] Preferably, the metal foil feeding mechanism includes two symmetrically arranged back support rods, one end of the back support rod is fixedly connected to the feeding spacing adjusting nut, and the other end of the back support rod is bolted to a U-shaped fixing plate, the front side of the U-shaped fixing plate is bolted with a mounting plate, a feeding motor is fixedly connected to the mounting plate, a metal foil feeding roller is fixedly connected to the output end of the feeding motor, the metal foil feeding roller is used to wind metal foil one or metal foil two, a cleaning and tensioning assembly is rotatably connected to the U-shaped fixing plate, and a quality inspection mechanism is also installed on the U-shaped fixing plate.

[0014] Preferably, the cleaning tensioning assembly includes an electric rocker, which is rotatably connected to the mounting plate, a connecting rod is provided in the middle of the electric rocker, a tensioning elastic member is fixedly connected to the connecting rod, the other end of the tensioning elastic member is fixedly connected to the mounting plate, a tensioning roller and a dust suction roller are installed at the working end of the electric rocker, the tensioning roller is rotatably connected to the electric rocker, and the dust suction roller is slidably connected to the electric rocker.

[0015] Preferably, the quality inspection mechanism comprises a V-shaped plate connecting rod, the V-shaped plate connecting rod is fixedly connected to the U-shaped fixing plate, one end of the V-shaped plate connecting rod away from the U-shaped fixing plate is connected to the V-shaped plate by bolts, two symmetrically arranged guide rollers are rotatably connected to the V-shaped plate, and a metal thickness gauge is installed on the V-shaped plate by bolts;

[0016] An electric telescopic member is fixedly connected to the U-shaped fixed plate, and a metal flaw detector is installed at one end of the electric telescopic member away from the U-shaped fixed plate;

[0017] A roller position regulating cylinder is fixedly connected to the front side of the metal flaw detector, and a cleaning roller is rotatably connected to the working end of the roller position regulating cylinder. The cleaning roller is used for cleaning the surface of the organic layer.

[0018] Preferably, it also includes two symmetrically arranged raw material sorting guide assemblies, which are respectively mounted on two mounting plates, and the raw material sorting guide assembly includes a hinged bent rod, which is rotatably connected to the mounting plate, and a sorting guide roller is rotatably mounted on the working end of the hinged bent rod, and the sorting guide roller includes two symmetrically arranged guide plates, a roller body and a roller shaft, the roller shaft is rotatably connected to the hinged bent rod, the roller body is key-connected to the roller shaft, the two guide plates are respectively fixedly connected to the two ends of the roller body, and a regulating hydraulic cylinder is hinged on the mounting plate, and the working end of the regulating hydraulic cylinder is slidably connected to the hinged bent rod.

[0019] Preferably, shearing components are provided before and after the inlet of the finished product collection component, an appearance quality inspection scanner is provided on the finished product collection component, and the bottom of the inner wall of the finished product collection component is sloped.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The 45KHz high-frequency welding tool head of the present invention can ensure that the three layers of material are firmly welded together without light leakage, and the welding reliability is good. The design of the flexible control machine can adjust the spatial position of the 45KHz high-frequency welding tool head and the bottom roller according to actual conditions, thereby reducing the influence of gravity on the raw material transmission process to meet the welding requirements of different raw materials and effectively ensure the welding quality.

[0022] 2. The design of the tensioning roller and the dust suction roller of the present invention ultimately ensures the final welding quality of the current collector. During the use of the raw material sorting guide assembly, the spacing between the two sorting guide rollers can be adjusted by regulating the extension and contraction of the hydraulic cylinder to adapt to the thickness of raw materials of different specifications. The width of raw materials of different specifications can be adapted by replacing sorting guide rollers of different specifications, so that the metal foil material 1, the organic layer and the metal foil material 2 are aligned with each other to prepare for welding.

[0023] 3. During operation, the metal thickness gauge and the metal flaw detector of the present invention are always respectively attached to the two sides of the metal foil material 1 or the metal foil material 2 to perform quality inspection on the metal foil material 1 or the metal foil material 2. Meanwhile, during the feeding process of the organic layer, the cleaning roller cleans the surface of the organic layer to ensure the final welding quality from the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 A schematic diagram of the working state of the L-shaped frame of the present invention;

[0027] Figure 3 This is a second schematic diagram of the working state of the L-shaped frame of the present invention;

[0028] Figure 4 A schematic diagram of the working state of the welding tool of the present invention;

[0029] Figure 5 A second schematic diagram of the working state of the welding tool of the present invention;

[0030] Figure 6 It is a front view of the feeding assembly of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the feeding assembly of the present invention;

[0032] Figure 8 A top view of the feeding assembly of the present invention;

[0033] Fig. 9 It is a rear view of the feeding assembly of the present invention;

[0034] Fig.10 This is a schematic diagram of the structure of the raw material arrangement guide assembly of the present invention;

[0035] Fig.11 This is a schematic diagram of the structure of the finishing guide roller of the present invention;

[0036] Fig.12 This is a schematic diagram of the structure of the finished product collection component of the present invention;

[0037] Fig.13 This is a schematic diagram of a 5KHz high frequency welding tool head pattern 1 of the present invention;

[0038] Fig.14 This is a schematic diagram of pattern 2 of a 5KHz high frequency welding tool head according to the present invention.

[0039] In the figure: 1. Flexible control machine; 100. L-shaped frame; 101. z guide table; 102. y guide table; 103. x guide block; 1030. Metal foil material 1; 104. Organic layer; 105. Metal foil material 2; 2. Welding tool; 200. Tool mounting plate; 201. 45KHz high frequency welding tool head; 2010. Electric shaft 1; 2011. Electric spacing control screw; 2012. Shaft mounting nut; 2013. Electric shaft 2; 202. Bottom roller; 2020. Spiral tube; 203. Support seat; 3. Feeding assembly; 300. Organic layer electric feeding roller; 3000. Back support block; 3001. Feeding spacing electric adjustment screw; 301. Metal foil feeding mechanism; 3010. Back support rod; 3011. U-shaped fixing plate; 3012. Mounting plate; 3013. Feeding motor; 3014, metal foil feeding roller; 302, cleaning tensioning assembly; 3020, electric rocker; 3021, connecting rod; 3022, tensioning elastic member; 3023, tensioning roller; 3024, dust suction roller; 303, quality inspection mechanism; 3030, V-shaped plate connecting rod; 3031, V-shaped plate; 3032, guide roller; 3033, metal thickness gauge; 3034, electric telescopic member; 30 35. Metal flaw detector; 3036. Roller position control cylinder; 3037. Cleaning roller; 304. Raw material sorting guide assembly; 3040. Hinge bending rod; 3041. Sorting guide roller; 3042. Guide plate; 3043. Roller body; 3044. Roller shaft; 3045. Control hydraulic cylinder; 4. Finished product collection assembly; 400. Import; 401. Shearing assembly; 402. Appearance quality inspection scanner. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The present invention provides the following embodiments

[0043] Example 1

[0044] The embodiment of the present invention provides a welding device for a composite current collector, such as Figure 1-14 As shown, it includes a flexible control machine 1, a welding tool 2, a feeding component 3 and a finished product collection component 4, the flexible control machine 1 includes an L-shaped frame 100, the L-shaped frame 100 is rotatably connected to a z guide table 101, the z guide table 101 is slidably connected to a y guide table 102 up and down, the y guide table 102 is slidably connected to an x ​​guide block 103 left and right, the x guide block 103 is slidably connected to a tool mounting plate 200 front and back, the welding tool 2 is installed on the tool mounting plate 200, the welding tool 2 includes a 45KHz high-frequency welding tool head 201 and a bottom roller 202, and the 45KHz high-frequency welding tool head 201 and the bottom roller 202 are both rotatably connected to two support seats 203.

[0045] Preferably, the z guide table 101, the y guide table 102 and the x guide block 103 are all provided with power components, and the three power components are respectively used to drive the y guide table 102 to slide up and down, drive the x guide block 103 to slide left and right, and drive the tool mounting plate 200 to slide forward and backward;

[0046] The power assembly can adopt any one of a cylinder mechanism, a hydraulic cylinder mechanism, a lead screw nut pair mechanism and a linear motor.

[0047] Preferably, the metal foil material 1030 and the metal foil material 2 105 can be any one or more of aluminum foil, copper foil, composite aluminum foil or composite copper foil.

[0048] Preferably, the shapes of the 45KHz high frequency welding tool head 201 and the bottom roller 202 match each other, such as the 45KHz high frequency welding tool head 201 is convex, and the corresponding bottom roller 202 is concave, and the shapes are the same to ensure welding reliability. The pattern of the 45KHz high frequency welding tool head 201 can be as follows: Fig.13 or Fig.14 Any one of .

[0049] The working principle and beneficial effects of the above technical solution are as follows: when working, the feeding component 3 stacks the metal foil material 1030, the organic layer 104 and the metal foil material 2 105 from top to bottom in sequence and feeds them between the 45KHz high-frequency welding tool head 201 and the bottom roller 202. The 45KHz high-frequency welding tool head 201 can ensure that the three layers of material are firmly welded together without light leakage, and the welding reliability is good. The welding of the collector is achieved by the 45KHz high-frequency welding tool head 201 and the bottom roller 202. When the metal foil material 1030, the organic layer 104 and the metal foil material 2 105 are of large mass or the feeding line is long, in order to avoid bending due to gravity due to the large mass or the long feeding line, the y guide table 102 slides upward along the z guide table 101 and the z guide table 101 rotates 90 degrees, so that the y guide table 102 and the z guide table 101 are moved from Figure 2 The status shown turns to Figure 3 In the state shown, the welding tool 2 is Figure 4 The status changes to Figure 5 In the state shown, the metal foil material 1 1030, the organic layer 104 and the metal foil material 2 105 pass through the 45KHz high-frequency welding tool head 201 and the bottom roller 202 from being parallel to the ground, and then change to the metal foil material 1030, the organic layer 104 and the metal foil material 2 105 passing through the 45KHz high-frequency welding tool head 201 and the bottom roller 202 perpendicular to the ground, thereby reducing the influence of gravity on the raw material transmission process, and the state of the flexible control machine 1 can be adjusted according to the actual situation to meet the welding requirements of different raw materials and effectively ensure the welding quality;

[0050] After welding, the finished current collector is sent to the finished collection assembly 4 for cutting and collection;

[0051] Before welding, the metal foil 1030 and the metal foil 2 105 need to be subjected to tensile quality inspection. The data results are shown in Table 1. The tensile requirements for qualified quality inspection are shown in Table 2.

[0052]

[0053] Table 1 Metal foil tensile quality inspection data

[0054]

[0055] Table 2 Tensile strength requirements for metal foil materials to pass inspection.

[0056] Example 2

[0057] On the basis of Example 1, the bottom roller 202 is rotatably connected to the two support seats 203 through the electric rotating shaft 1 2010, the two support seats 203 are rotatably connected with the electric spacing adjustment screw 2011, the electric spacing adjustment screw 2011 is threadedly connected with the rotating shaft mounting nut 2012, the electric rotating shaft 2 2013 is rotatably connected between the two rotating shaft mounting nuts 2012, and the 45KHz high-frequency welding tool head 201 is mounted on the electric rotating shaft 2 2013;

[0058] A spiral tube 2020 is provided at a position corresponding to the bottom roller 202 on the tool mounting plate 200 . The spiral tube 2020 is connected to an external coolant supply mechanism, and a circulation loop is formed between the coolant supply mechanism and the spiral tube 2020 .

[0059] The working principle and beneficial effects of the above technical solution are as follows: the metal foil 1 1030, the organic layer 104 and the metal foil 2 105 are stacked in sequence from top to bottom and penetrated between the 45KHz high-frequency welding tool head 201 and the bottom roller 202, and the welding of the current collector is achieved through the joint action of the 45KHz high-frequency welding tool head 201 and the bottom roller 202. In this process, the electric spacing control screw 2011 can be rotated to drive the shaft mounting nut 2012 to move up and down, thereby adjusting the spacing between the 45KHz high-frequency welding tool head 201 and the bottom roller 202 to better meet the welding requirements of current collectors of different specifications. After welding is completed, the coolant can be introduced into the spiral tube 220 through the coolant supply mechanism, and at the same time, the 45KHz high-frequency welding tool head 201 and the bottom roller 202 are adjusted to contact each other, so as to achieve rapid cooling of the bottom roller 202 and indirect rapid cooling of the 45KHz high-frequency welding tool head 201.

[0060] Example 3

[0061] On the basis of Example 1, the feeding assembly 3 includes an organic layer electric feeding roller 300 and metal foil material feeding mechanisms 301 symmetrically arranged on both sides of the organic layer electric feeding roller 300, the organic layer 104 is wound around the organic layer electric feeding roller 300, and the two metal foil material feeding mechanisms 301 are used for feeding the metal foil material 1 1030 and the metal foil material 2 105 respectively;

[0062] Two metal foil feeding mechanisms 301 are installed on the back support block 3000, and two sets of symmetrically arranged feeding spacing electric adjustment screws 3001 are rotatably connected to the back support block 3000. The feeding spacing electric adjustment screws 3001 are threadedly connected with feeding spacing adjustment nuts, and the two metal foil feeding mechanisms 301 are fixedly connected to the feeding spacing adjustment nuts.

[0063] The working principle and beneficial effects of the above technical solution are as follows: during feeding, the organic layer electric feeding roller 300 and the two metal foil feeding mechanisms 301 are respectively used for feeding the organic layer 104, the metal foil one 1030 and the metal foil two 105. In this process, the feeding spacing electric adjustment screw 3001 can be rotated to drive the feeding spacing adjustment nut to move up and down, thereby adjusting the spacing between the two metal foil feeding mechanisms 301 to meet the feeding requirements of the organic layer 104, the metal foil one 1030 and the metal foil two 105 of different specifications.

[0064] Example 4

[0065] On the basis of Example 3, the metal foil feeding mechanism 301 includes two symmetrically arranged back support rods 3010, one end of the back support rod 3010 is fixedly connected to the feeding spacing adjustment nut, and the other end of the back support rod 3010 is bolted to the U-shaped fixing plate 3011, the front side of the U-shaped fixing plate 3011 is bolted with a mounting plate 3012, and a feeding motor 3013 is fixedly connected to the mounting plate 3012, and a metal foil feeding roller 3014 is fixedly connected to the output end of the feeding motor 3013, and the metal foil feeding roller 3014 is used to wind metal foil 1030 or metal foil 2 105, a cleaning tensioning assembly 302 is rotatably connected to the U-shaped fixing plate 3011, and a quality inspection mechanism 303 is also installed on the U-shaped fixing plate 3011.

[0066] The working principle and beneficial effects of the above technical solution are as follows: before use, the organic layer 104 is wound on the organic layer electric feeding roller 300, and the metal foil 1 1030 and the metal foil 2 105 are respectively wound on two metal foil feeding mechanisms 301. After the metal foil 1 1030 and the metal foil 2 105 are output by the metal foil feeding mechanism 301, they bypass the cleaning and tensioning assembly 302 in turn and are finally output horizontally to the welding tool 2 through the quality inspection mechanism 303. The cleaning and tensioning assembly 302 is used to adjust the tightness of the metal foil 1 1030 and the metal foil 2 105, and clean the surface of the metal foil 1 1030 and the metal foil 2 105 at the same time. The quality inspection mechanism 303 is used to perform quality inspection on the metal foil 1 1030 and the metal foil 2 105 to ensure the qualification of the metal foil 1 1030 and the metal foil 2 105.

[0067] Example 5

[0068] On the basis of Example 4, the cleaning tensioning assembly 302 includes an electric rocker 3020, which is rotatably connected to the mounting plate 3012. A connecting rod 3021 is provided in the middle of the electric rocker 3020. A tensioning elastic member 3022 is fixedly connected to the connecting rod 3021. The other end of the tensioning elastic member 3022 is fixedly connected to the mounting plate 3012. A tensioning roller 3023 and a dust suction roller 3024 are installed at the working end of the electric rocker 3020. The tensioning roller 3023 is rotatably connected to the electric rocker 3020, and the dust suction roller 3024 is slidably connected to the electric rocker 3020.

[0069] The working principle and beneficial effects of the above technical solution are as follows: Figure 7 When the metal foil material 1 1030 and the metal foil material 2 105 are installed, they are both located between the tensioning roller 3023 and the dust suction roller 3024, wherein the tensioning roller 3023 is used to tension the metal foil material 1 1030 and the metal foil material 2 105, and the dust suction roller 3024 is used to absorb the impurities and dust on the surfaces of the metal foil material 1 1030 and the metal foil material 2 105. The tensioning roller 3023 ensures that the metal foil material 1 1030 and the metal foil material 2 105 will not be wrinkled during the feeding period, and the dust suction roller 3024 ensures the cleanliness of the surfaces of the metal foil material 1 1030 and the metal foil material 2 105, thereby the design of the tensioning roller 3023 and the dust suction roller 3024 ultimately ensures the final welding quality of the current collector;

[0070] The tensioning can be achieved by rotating the electric rocker 3020 . During this process, the design of the tensioning elastic member 3022 makes the movement of the electric rocker 3020 more stable.

[0071] Example 6

[0072] On the basis of Example 4, the quality inspection mechanism 303 includes a V-shaped plate connecting rod 3030, the V-shaped plate connecting rod 3030 is fixedly connected to the U-shaped fixing plate 3011, one end of the V-shaped plate connecting rod 3030 away from the U-shaped fixing plate 3011 is connected to the V-shaped plate 3031 by bolts, two symmetrically arranged guide rollers 3032 are rotatably connected to the V-shaped plate 3031, and a metal thickness gauge 3033 is installed on the V-shaped plate 3031 by bolts;

[0073] An electric telescopic member 3034 is fixedly connected to the U-shaped fixing plate 3011, and a metal flaw detector 3035 is installed at one end of the electric telescopic member 3034 away from the U-shaped fixing plate 3011;

[0074] A roller position regulating cylinder 3036 is fixedly connected to the front side of the metal flaw detector 3035 , and a cleaning roller 3037 is rotatably connected to the working end of the roller position regulating cylinder 3036 . The cleaning roller 3037 is used to clean the surface of the organic layer 104 .

[0075] The working principle and beneficial effects of the above technical solution are as follows: Figure 6 The metal foil material 1030 and the metal foil material 2 105 are outputted by the tension roller 3023 and the dust suction roller 3024 and then enter between the metal thickness gauge 3033 and the metal flaw detector 3035, and then are flawed by the metal flaw detector 3035 and their thickness is detected by the metal thickness gauge 3033, thereby realizing the quality inspection of the metal foil material 1030 and the metal foil material 2 105, and improving the welding quality of the current collector from the source;

[0076] The metal thickness gauge 3033 and the metal flaw detector 3035 are always respectively attached to the two sides of the metal foil material 1030 or the metal foil material 2 105 during the working process, and will not affect each other during the working process. The design of the electric telescopic component 3034 can flexibly adapt to the flaw detection of the metal foil material 1030 and the metal foil material 2 105 of different thicknesses. When the thickness of the metal foil material 1030 and the metal foil material 2 105 is large, the electric telescopic component 3034 is extended, and when the thickness of the metal foil material 1030 and the metal foil material 2 105 is small, the electric telescopic component 3034 is shortened, so that the metal flaw detector 3035 is always attached to the surface of the metal foil material 1030 or the metal foil material 2 105;

[0077] During the feeding process of the organic layer 104, the roller position regulating cylinder 3036 is extended so that the cleaning roller 3037 moves upward to contact the surface of the organic layer 104. During the feeding process of the organic layer 104, the surface of the organic layer 104 is cleaned, thereby improving the final welding quality.

[0078] Example 7

[0079] On the basis of Example 4, it also includes two symmetrically arranged raw material sorting guide assemblies 304, and the two raw material sorting guide assemblies 304 are respectively mounted on two mounting plates 3012. The raw material sorting guide assembly 304 includes a hinged bent rod 3040, and the hinged bent rod 3040 is rotatably connected to the mounting plate 3012. A sorting guide roller 3041 is rotatably mounted on the working end of the hinged bent rod 3040. The sorting guide roller 3041 includes two symmetrically arranged guide plates 3042, a roller body 3043 and a roller shaft 3044. The roller shaft 3044 is rotatably connected to the hinged bent rod 3040, and the roller body 3043 is key-connected to the roller shaft 3044. The two guide plates 3042 are respectively fixedly connected to the two ends of the roller body 3043, and a regulating hydraulic cylinder 3045 is hingedly connected to the mounting plate 3012. The working end of the regulating hydraulic cylinder 3045 is slidably connected to the hinged bent rod 3040.

[0080] The working principle and beneficial effects of the above technical solution are as follows: during the use of the raw material sorting guide assembly 304, the spacing between the two sorting guide rollers 3041 can be adjusted by regulating the extension and retraction of the hydraulic cylinder 3045 to adapt to the thickness of raw materials of different specifications, and the width of raw materials of different specifications can be adapted by replacing sorting guide rollers 3041 of different specifications. When in use, the metal foil 1 1030, the organic layer 104 and the metal foil 2 105 are stacked in sequence from top to bottom and sent between the two sorting guide rollers 3041, so that the metal foil 1 1030, the organic layer 104 and the metal foil 2 105 are aligned with each other to prepare for welding.

[0081] Example 8

[0082] On the basis of Example 1, a shearing assembly 401 is provided before and after the inlet 400 of the finished product collecting assembly 4, an appearance quality inspection scanner 402 is provided on the finished product collecting assembly 4, and the bottom of the inner wall of the finished product collecting assembly 4 is sloped.

[0083] The working principle and beneficial effects of the above technical solution are as follows: when the welded current collector passes under the appearance quality inspection scanner 402, the appearance quality inspection scanner 402 scans it. When the scan is qualified, it continues to be transmitted to the finished product collection component 4, and is sheared by the shearing component 401 in the inlet 400. The sheared current collector falls into the finished product collection component 4 for collection. When the scan is unqualified, the shearing component 401 outside the inlet 400 shears it, so that the unqualified current collector falls to the ground.

[0084] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A welding device for a composite current collector, characterized in that: The invention comprises a flexible control machine (1), a welding tool (2), a feeding assembly (3) and a finished product collection assembly (4), wherein the flexible control machine (1) comprises an L-shaped frame (100), a z guide table (101) is rotatably connected to the L-shaped frame (100), the z guide table (101) is slidably connected to the y guide table (102) up and down, the y guide table (102) is slidably connected to the x guide block (103) left and right, the x guide block (103) is slidably connected to the tool mounting plate (200), the welding tool (2) is mounted on the tool mounting plate (200), the welding tool (2) comprises a 45KHz high-frequency welding tool head (201) and a bottom roller (202), and the 45KHz high-frequency welding tool head (201) and the bottom roller (202) are both rotatably connected to two support seats (203); The bottom roller (202) is rotatably connected to two support seats (203) via an electric rotating shaft 1 (2010); an electric spacing regulating screw (2011) is rotatably connected to the two support seats (203); a rotating shaft mounting nut (212) is threadedly connected to the electric spacing regulating screw (2011); an electric rotating shaft 2 (2013) is rotatably connected between the two rotating shaft mounting nuts (2012); and a 45KHz high-frequency welding tool head (201) is mounted on the electric rotating shaft 2 (2013); The z guide table (101), the y guide table (102) and the x guide block (103) are all provided with power components, and the three power components are respectively used to drive the y guide table (102) to slide up and down, drive the x guide block (103) to slide left and right, and drive the tool mounting plate (200) to slide forward and backward; The power assembly can be any one of a cylinder mechanism, a hydraulic cylinder mechanism, a lead screw nut pair mechanism and a linear motor; The metal foil material 1 (1030), the organic layer (104) and the metal foil material 2 (105) pass through the 45KHz high-frequency welding tool head (201) and the bottom roller (202) from being parallel to the ground, and can be transformed into the metal foil material 1 (1030), the organic layer (104) and the metal foil material 2 (105) passing through the 45KHz high-frequency welding tool head (201) and the bottom roller (202) perpendicular to the ground, thereby reducing the influence of gravity on the raw material transmission process.

2. A composite current collector welding device according to claim 1, characterized in that: A spiral tube (2020) is provided at a position corresponding to the bottom roller (202) on the tool mounting plate (200); the spiral tube (2020) is in communication with an external cooling liquid supply mechanism, and a circulation loop is formed between the cooling liquid supply mechanism and the spiral tube (2020).

3. A composite current collector welding device according to claim 1, characterized in that: The feeding assembly (3) comprises an organic layer electric feeding roller (300) and metal foil material feeding mechanisms (301) symmetrically arranged on both sides of the organic layer electric feeding roller (300) in an upper and lower manner, an organic layer (104) is wound around the organic layer electric feeding roller (300), and the two metal foil material feeding mechanisms (301) are used for feeding metal foil material 1 (1030) and metal foil material 2 (105) respectively; The two metal foil material feeding mechanisms (301) are mounted on a back support block (3000), and two groups of symmetrically arranged feeding spacing electric adjustment screws (3001) are rotatably connected to the back support block (3000), and feeding spacing adjustment nuts are threadedly connected to the feeding spacing electric adjustment screws (3001), and the two metal foil material feeding mechanisms (301) are fixedly connected to the feeding spacing adjustment nuts.

4. A composite current collector welding device according to claim 3, characterized in that: The metal foil material feeding mechanism (301) comprises two symmetrically arranged back support rods (3010), one end of the back support rods (3010) is fixedly connected to a feeding spacing adjustment nut, the other end of the back support rods (3010) is bolted to a U-shaped fixing plate (3011), a mounting plate (3012) is bolted to the front side of the U-shaped fixing plate (3011), a feeding motor (3013) is fixedly connected to the mounting plate (3012), a metal foil material feeding roller (3014) is fixedly connected to the output end of the feeding motor (3013), the metal foil material feeding roller (3014) is used to wind a metal foil material 1 (1030) or a metal foil material 2 (105), a cleaning tensioning assembly (302) is rotatably connected to the U-shaped fixing plate (3011), and a quality inspection mechanism (303) is also installed on the U-shaped fixing plate (3011).

5. A composite current collector welding device according to claim 4, characterized in that: The cleaning tensioning assembly (302) comprises an electric rocker (3020), the electric rocker (3020) being rotatably connected to the mounting plate (3012), a connecting rod (3021) being provided in the middle of the electric rocker (3020), a tensioning elastic member (3022) being fixedly connected to the connecting rod (3021), the other end of the tensioning elastic member (3022) being fixedly connected to the mounting plate (3012), a tensioning roller (3023) and a dust collecting roller (3024) being installed at the working end of the electric rocker (3020), the tensioning roller (3023) being rotatably connected to the electric rocker (3020), and the dust collecting roller (3024) being slidably connected to the electric rocker (3020).

6. A composite current collector welding device according to claim 4, characterized in that: The quality inspection mechanism (303) comprises a V-shaped plate connecting rod (3030), the V-shaped plate connecting rod (3030) being fixedly connected to the U-shaped fixing plate (3011), one end of the V-shaped plate connecting rod (3030) away from the U-shaped fixing plate (3011) being connected to the V-shaped plate (3031) via bolts, two symmetrically arranged guide rollers (3032) being rotatably connected to the V-shaped plate (3031), and a metal thickness gauge (3033) being installed on the V-shaped plate (3031) via bolts; An electric telescopic member (3034) is fixedly connected to the U-shaped fixed plate (3011), and a metal flaw detector (3035) is installed at one end of the electric telescopic member (3034) away from the U-shaped fixed plate (3011); A roller position regulating cylinder (3036) is fixedly connected to the front side of the metal flaw detector (3035); a cleaning roller (3037) is rotatably connected to the working end of the roller position regulating cylinder (3036); the cleaning roller (3037) is used to clean the surface of the organic layer (104).

7. A composite current collector welding device according to claim 4, characterized in that: The invention also comprises two symmetrically arranged raw material sorting guide assemblies (304), the two raw material sorting guide assemblies (304) are respectively mounted on two mounting plates (3012), the raw material sorting guide assemblies (304) comprise a hinged bent rod (3040), the hinged bent rod (3040) is rotatably connected to the mounting plate (3012), a sorting guide roller (3041) is rotatably mounted on the working end of the hinged bent rod (3040), and the sorting guide roller (3041) comprises two symmetrically arranged guide plates (3012). 042), a roller body (3043) and a roller shaft (3044), the roller shaft (3044) is rotatably connected to the hinged bent rod (3040), the roller body (3043) is key-connected to the roller shaft (3044), two guide plates (3042) are respectively fixedly connected to the two ends of the roller body (3043), a regulating hydraulic cylinder (3045) is hingedly connected to the mounting plate (3012), and the working end of the regulating hydraulic cylinder (3045) is slidably connected to the hinged bent rod (3040).

8. A composite current collector welding device according to claim 1, characterized in that: A shearing assembly (401) is provided before and after the inlet (400) of the finished product collecting assembly (4), an appearance quality inspection scanner (402) is provided on the finished product collecting assembly (4), and the bottom of the inner wall of the finished product collecting assembly (4) is sloped.

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