Adapter welding head device

Abstract

This invention discloses an adapter welding head device. The adapter welding head device includes a first welding mechanism and a second welding mechanism. The first welding mechanism includes a first welding head body, a first welding tooth base, and a first welding tooth assembly. The first welding head body has a plurality of first welding tooth bases, and some of the first welding tooth bases are connected to first welding tooth assemblies. The second welding mechanism includes a second welding head body, a second welding tooth base, and second welding tooth assemblies. The second welding head body has a plurality of second welding tooth bases, and some of the second welding tooth bases are connected to second welding tooth assemblies. In use, the second welding head body is positioned opposite to the first welding head body, and the plurality of second welding tooth assemblies on the second welding tooth bases are staggered with the plurality of first welding tooth assemblies on the first welding tooth base. The above-mentioned adapter welding head device can effectively solve the phenomenon of welding head adhesion during welding, improving welding bonding strength and welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a kind of adapter welding head device. BACKGROUND

[0002] In the welding of welding parts such as composite current collectors, due to the low heat resistance of the composite current collector, the traditional technology adopts the mode of adapter welding, that is, a layer of traditional foil is added between the composite current collectors, and the traditional foil is used as an adapter. The adapter is welded together with the adapter by ultrasonic welding device under high frequency vibration to make the atoms of adjacent host sheets vibrate. In order to increase the friction between the welding head and the material, and to ensure that the welding head can drive the welded material to vibrate at high frequency, the working surface of the welding head that presses the material has a plurality of welding teeth, such as ball teeth and conical teeth.

[0003] The traditional adapter welding method has the following disadvantages: first, there is a phenomenon of sticking welding head during welding, which is easy to produce metal chips, causing internal short circuit and affecting the safety performance of the battery; second, the shape of the welding head teeth has problems, such as the smoothness of the ball teeth around, which is easy to slip, while the conical teeth are easy to pierce into the welding parts such as composite current collectors, but are easy to cause perforation on the surface of the welding parts, resulting in poor welding quality; third, the operation process of adapter welding is relatively complex, which affects the welding efficiency. SUMMARY

[0004] Therefore, in view of the problems of the traditional adapter welding method, such as easy to produce metal chips, sticking welding head, easy to slip and pierce into the welding parts, and relatively complex operation process, which affects the welding efficiency, an embodiment of the present application provides an adapter welding head device. The adapter welding head device of the present application can effectively solve the problem of sticking welding head during welding, and at the same time improve the welding bonding force and welding efficiency between the adapter and the composite current collector.

[0005] An adapter welding head device, comprising:

[0006] A first welding mechanism, the first welding mechanism comprises a first welding head body, a first welding tooth base seat and a first welding tooth assembly, a plurality of first welding tooth base seats are arranged on the first welding head body, and a plurality of first welding tooth assemblies are connected to part of the first welding tooth base seats, and the first welding tooth assembly comprises a plurality of first welding tooth heads; and

[0007] The second welding mechanism comprises a second welding head body, a second welding tooth base seat and a second welding tooth assembly, the second welding tooth base seat is arranged on the second welding head body, and the second welding tooth assembly is connected to part of the second welding tooth base seats.

[0008] In some embodiments, the first welding head body has a first welding cooperation surface on the side for cooperation with the second welding head body, and the first welding cooperation surface is provided with the first welding tooth base seats.

[0009] In some embodiments, the second welding head body has a second welding cooperation surface on the side for cooperation with the first welding head body, and the second welding cooperation surface is provided with the second welding tooth base seats.

[0010] In some embodiments, the first welding tooth heads are arranged in a matrix on the first welding tooth base seat.

[0011] And / or, the second welding tooth heads are arranged in a matrix on the second welding tooth base seat.

[0012] In some embodiments, the first welding tooth head has an anti-sticking coating.

[0013] And / or, the second welding tooth head has an anti-sticking coating.

[0014] In some embodiments, the material of the anti-sticking coating is an Al-Cu-Fe quasi-crystal coating.

[0015] And / or, the thickness of the anti-sticking coating is 5-30 microns.

[0016] And / or, the anti-sticking coating is prepared by physical thermal spraying, vapor deposition or ion plating.

[0017] In some embodiments, the height of the first welding tooth base seat relative to the first welding head body is greater than the height of the first welding tooth head relative to the first welding tooth base seat.

[0018] And / or, the height of the second welding tooth base seat relative to the second welding head body is greater than the height of the second welding tooth head relative to the second welding tooth base seat.

[0019] In some embodiments, the first welding tooth base seats are arranged in a matrix on the first welding head body.

[0020] And / or, the plurality of second welding tooth base seats are distributed in a matrix on the second welding head body.

[0021] In some embodiments, the first welding tooth base seat is one or more of a multi-angled platform, a circular platform, a semi-circular sphere, and an arc-shaped body.

[0022] And / or, the second welding tooth base seat is one or more of a multi-angled platform, a circular platform, a semi-circular sphere, and an arc-shaped body.

[0023] In some embodiments, the adapter welding head device further comprises a driving mechanism connected to the first welding head body and / or the second welding head body, the driving mechanism being used to drive the first welding head body and the second welding head body to move closer to each other or to move away from each other.

[0024] The adapter welding head device can effectively solve the problem of sticking of the welding head during the welding process, and improve the welding bonding force and welding efficiency between the adapter and the composite current collector. When the adapter welding head device is used, a layer of traditional foil is added on both sides of the composite current collector as an adapter, and the adapter welding is performed by an ultrasonic welding device. Under high-frequency vibration, the atoms of the adjacent host sheets vibrate, so that the composite current collector and the adapter metal are welded together. That is, the first welding head body and the second welding head body are synchronously welded in the welding process, which improves the welding efficiency. The use of the bottom mold in the traditional technology is avoided, and the step of accurately positioning and firmly and stably installing the bottom mold in the traditional technology is cancelled, further improving the welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0027] Figure 1 The adapter welding head device described in an embodiment of the present application is shown in the schematic diagram.

[0028] Figure 2 The first welding head body of the adapter welding head device described in an embodiment of the present application is shown in the schematic diagram.

[0029] Figure 3Figure 1 is a front view of a first welding head body of a welding head device according to an embodiment of the present application;

[0030] Figure 4 Figure 2 is a schematic view of a second welding head body of a welding head device according to an embodiment of the present application;

[0031] Figure 5 Figure 3 is a front view of a second welding head body of a welding head device according to an embodiment of the present application;

[0032] Figure 6 Figure 4 is a front view of a first welding tooth base and a first welding tooth assembly of a welding head device according to an embodiment of the present application;

[0033] Figure 7 Figure 5 is a side view of a first welding tooth base and a first welding tooth assembly of a welding head device according to an embodiment of the present application;

[0034] Figure 8 Figure 6 is a front view of a second welding tooth base and a second welding tooth assembly of a welding head device according to an embodiment of the present application;

[0035] Figure 9 Figure 7 is a side view of a second welding tooth base and a second welding tooth assembly of a welding head device according to an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 10, welding head device; 100, first welding mechanism; 101, first welding head body; 102, first welding tooth base; 103, first welding tooth assembly; 1031, first welding tooth head; 200, second welding mechanism; 201, second welding head body; 202, second welding tooth base; 203, second welding tooth assembly; 2031, second welding tooth head; 20, composite current collector; 21, adapter body. DETAILED DESCRIPTION

[0038] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments described herein are not intended to be limiting, but merely to illustrate and teach various embodiments of the present application.

[0039] In the description of the application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0040] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0043] It is to be noted that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a member is referred to as being "coupled" or "connected" to another member, it can be directly coupled or connected to the other member or intervening members can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0044] In the description of the present application, if the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0045] 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0046] The embodiment of the present application provides a transfer welding head device 10 to solve the problems of the traditional transfer welding, such as the phenomenon of easy metal chips and sticking welding head, the phenomenon of easy skidding of welding teeth of the welding head, the relatively complex operation process of the transfer welding, and the influence on welding efficiency. The following will be described with reference to the accompanying drawings.

[0047] The transfer welding head device 10 provided by the embodiment of the present application is exemplarily shown in Figure 1 The structure schematic diagram of the transfer welding head device 10 provided by the embodiment of the present application is shown in Figure 1 The structure schematic diagram of the transfer welding head device 10 provided by the embodiment of the present application is shown in. The transfer welding head device 10 of the present application can be used for composite current collector 20 welding.

[0048] In order to more clearly illustrate the structure of the transfer welding head device 10, the transfer welding head device 10 will be introduced in combination with the accompanying drawings.

[0049] The transfer welding head device 10 provided by the embodiment of the present application is exemplarily shown in Figure 1 The structure schematic diagram of the transfer welding head device 10 provided by the embodiment of the present application is shown in. The transfer welding head device 10 provided by the embodiment of the present application is exemplarily shown in Figure 1 The structure schematic diagram of the transfer welding head device 10 provided by the embodiment of the present application is shown in. The transfer welding head device 10 provided by the embodiment of the present application is exemplarily shown in

[0050] The first welding mechanism 100 comprises a first welding head body 101, a first welding tooth base seat 102 and a first welding tooth assembly 103. The first welding head body 101 is provided with a plurality of first welding tooth base seats 102. Some of the first welding tooth base seats 102 are connected with the first welding tooth assemblies 103. The first welding tooth assembly 103 comprises a plurality of first welding tooth heads 1031.

[0051] The second welding mechanism 200 comprises a second welding head body 201, a second welding tooth base seat 202 and a second welding tooth assembly 203. The second welding head body 201 is provided with a plurality of second welding tooth base seats 202. Some of the second welding tooth base seats 202 are connected with the second welding tooth assemblies 203. The second welding tooth assembly 203 comprises a plurality of second welding tooth heads 2031.

[0052] In use, the second welding head body 201 is arranged opposite to the first welding head body 101, and the plurality of second welding tooth assemblies 203 on the second welding tooth base seat 202 are distributed staggered with the plurality of first welding tooth assemblies 103 on the first welding tooth base seat 102. After staggered distribution, when the second welding head body 201 is attached to the first welding head body 101, the second welding tooth base seat 202 with the second welding tooth assembly 203 is matched with the first welding tooth base seat 102 without the first welding tooth assembly 103, and the second welding tooth base seat 202 without the second welding tooth assembly 203 is matched with the first welding tooth base seat 102 with the first welding tooth assembly 103. In this way, when the second welding head body 201 and the first welding head body 101 are matched for processing the composite current collector 20, there is the second welding tooth assembly 203 or the first welding tooth assembly 103 between each group of first welding tooth base seats 102 and the opposite second welding tooth base seat 202. The staggered distribution design not only can avoid the damage of the welding tooth head caused by ultrasonic resonance, but also can improve the welding strength under the mutual engagement. In addition, the first welding tooth base seat 102 and the opposite second welding tooth base seat 202 can support each other.

[0053] The adapter welding head device 10 can effectively solve the phenomenon of sticking welding head in the welding process, and improve the welding bonding force and welding efficiency between the adapter 21 and the composite current collector 20. In use, the adapter welding head device 10 adds a layer of traditional foil on both sides of the composite current collector 20 as the adapter 21. The adapter welding is welded together with the adapter 21 through the ultrasonic welding device under high-frequency vibration, that is, the first welding head body 101 and the second welding head body 201 are synchronously welded in the welding process, which improves the welding efficiency and avoids the use of the bottom mold in the traditional technology, and cancels the step of accurately positioning and firmly and stably installing the bottom mold in the traditional technology, further improving the welding efficiency.

[0054] In some embodiments, the first welding head body 101 has a first welding mating surface on the side for mating with the second welding head body 201. The first welding mating surface is provided with a plurality of first welding tooth base seats 102.

[0055] In some embodiments, the second welding head body 201 has a second welding mating surface on the side for mating with the first welding head body 101. The second welding mating surface is provided with a plurality of second welding tooth base seats 202. In the process of machining, the first welding mating surface and the second welding mating surface are arranged in parallel with each other.

[0056] In some embodiments, the plurality of first welding tooth heads 1031 are arranged in a matrix on the first welding tooth base seats 102. For example, in a specific example, as shown in FIG. 3, the plurality of first welding tooth heads 1031 are arranged in three rows and three columns on the first welding tooth base seats 102. It is not difficult to understand that in other specific examples, the plurality of first welding tooth heads 1031 can also be arranged in a matrix on the first welding tooth base seats 102, with the number of rows not equal to the number of columns. Figure 6 In some embodiments, the plurality of second welding tooth heads 2031 are arranged in a matrix on the second welding tooth base seats 202. For example, in a specific example, as shown in FIG. 4, the plurality of second welding tooth heads 2031 are arranged in three rows and three columns on the second welding tooth base seats 202. It is not difficult to understand that in other specific examples, the plurality of second welding tooth heads 2031 can also be arranged in a matrix on the second welding tooth base seats 202, with the number of rows not equal to the number of columns.

[0057] Figure 6 In some embodiments, the first welding tooth head 1031 has an anti-sticking coating. The anti-sticking coating effectively solves the phenomenon of sticking welding heads in the welding process, and also improves the welding bonding force and welding efficiency between the adapter 21 and the composite current collector 20.

[0058] In some embodiments, the second welding tooth head 2031 has an anti-sticking coating. The anti-sticking coating effectively solves the phenomenon of sticking welding heads in the welding process, and also improves the welding bonding force and welding efficiency between the adapter 21 and the composite current collector 20.

[0059] In some embodiments, the material of the anti-sticking coating is an Al-Cu-Fe quasi-crystal coating.

[0060] In some embodiments, the material of the anti-sticking coating is an Al-Cu-Fe quasi-crystal coating.

[0061] ​In some embodiments, the thickness of the anti-stick coating is 5 μm to 30 μm. For example, in one specific example, the thickness of the anti-stick coating is 5 μm. In another specific example, the thickness of the anti-stick coating is 30 μm. It is easy to understand that in other examples, the thickness of the anti-stick coating can also be 6 μm, 8 μm, 9 μm, 10 μm, 12 μm, 15 μm, 16 μm, 18 μm, 19 μm, 20 μm, 22 μm, 25 μm, 26 μm, 28 μm, 29 μm, or other parameters.

[0062] In some embodiments, the anti-stick coating is prepared by physical thermal spraying, vapor deposition, or ion plating.

[0063] In some embodiments, the height of the first welding tooth base 102 relative to the first welding head body 101 is greater than or equal to the height of the first welding tooth 1031 relative to the first welding tooth base 102.

[0064] In some embodiments, the height of the second welding tooth base 202 relative to the second welding head body 201 is greater than or equal to the height of the second welding tooth head 2031 relative to the second welding tooth base 202.

[0065] In some embodiments, a plurality of first welding tooth base bases 102 are arranged in a matrix on the first welding head body 101. See one specific example. Figure 2 and Figure 3 As shown, multiple first welding tooth base bases 102 are arranged in three rows and seven columns on the first welding head body 101. In this case, each row of seven first welding tooth base bases 102 has a first welding tooth head 1031 spaced apart. Preferably, see [reference needed]. Figure 3 As shown, first welding teeth 1031 are distributed on the first welding tooth base 102 in the second, fourth and sixth columns of the first row, first welding teeth 1031 are distributed on the first welding tooth base 102 in the first, third, fifth and seventh columns of the second row, and first welding teeth 1031 are distributed on the first welding tooth base 102 in the second, fourth and sixth columns of the third row.

[0066] In some embodiments, a plurality of second welding tooth base 202 are arranged in a matrix on the second welding head body 201. See [reference needed] for a specific example. Figure 4 and Figure 5 As shown, multiple second welding tooth base bases 202 are arranged in three rows and seven columns on the second welding head body 201. Preferably, see Figure 5As shown, the second tine head 2031 is distributed on the second tine base seat 202 in the first, third, fifth and seventh column positions on the first row, the second tine head 2031 is distributed on the second tine base seat 202 in the second, fourth and sixth column positions on the second row, and the second tine head 2031 is distributed on the second tine base seat 202 in the first, third, fifth and seventh column positions on the third row.

[0067] In some embodiments, the first tine base seat 102 is in one or more of a polyhedral frustum, a circular frustum, a hemispherical frustum and an arcuate body.

[0068] In some embodiments, the second tine base seat 202 is in one or more of a polyhedral frustum, a circular frustum, a hemispherical frustum and an arcuate body.

[0069] In some embodiments, the first tine head 1031 is in a spherical shape, a hemispherical shape, an ellipsoidal shape, a hemi-ellipsoidal shape or other structures, and the orthographic projection of the first tine head 1031 on the first tine base seat 102 is in a circular shape. The second tine head 2031 is in a spherical shape, a hemispherical shape, an ellipsoidal shape, a hemi-ellipsoidal shape or other structures, and the orthographic projection of the second tine head 2031 on the first tine base seat 102 is in a circular shape.

[0070] For example, in a specific example, the first tine base seat 102 is in a quadrangular frustum, the first tine heads 1031 on the first tine base seat 102 are in a hemispherical shape, and the first tine heads 1031 on the first tine base seat 102 are in three rows and three columns and are distributed at equal intervals. See Figure 7 As shown, the height h1 of the first tine base seat 102 is greater than the diameter R1 of the first tine head 1031, and the angle α1 between the side surface and the bottom surface of the first tine base seat 102 is in a range of 45° to 75°. See Figure 6As shown, the spacing d1 between adjacent first welding tooth heads 1031 on each row is equal to the spacing d1 between adjacent first welding tooth heads 1031 on each column, where d1 < R1. R1 < the top surface side length L1 of the first welding tooth base seat 102. Further, R1 < 1 / 2 L1. Correspondingly, the second welding tooth base seat 202 is a quadrangular prism, the second welding tooth heads 2031 on the second welding tooth base seat 202 are hemispheres, and the second welding tooth heads 2031 on the second welding tooth base seat 202 are arranged in three rows and three columns at equal intervals. The diameter R2 of the second welding tooth heads 2031 = R1, the height h2 of the second welding tooth base seat 202 = h1, and the angle a2 between the side surface and the bottom surface of the second welding tooth base seat 202 = a1. The spacing d2 between adjacent second welding tooth heads 2031 on each row = d1. The top surface side length L2 of the second welding tooth base seat 202 = L1. That is, the shape and size of the second welding head body 201 are basically the same as those of the first welding head body 101, except that the second welding tooth assemblies 203 on the second welding tooth base seat 202 are arranged in a staggered manner with the first welding tooth assemblies 103 on the first welding tooth base seat 102.

[0071] For example, in a specific example, when the first welding tooth base seat 102 is a triangular prism, a hemisphere, or an arc-shaped body, the circular diameter of the vertical projection of the first welding tooth heads 1031 on the first welding tooth base seat 102 is less than 1 / 2 times the value of the symmetry axis of the vertical projection surface of the first welding head body 101. Correspondingly, the shape and size of the second welding head body 201 are basically the same as those of the first welding head body 101, except that the second welding tooth assemblies 203 on the second welding tooth base seat 202 are arranged in a staggered manner with the first welding tooth assemblies 103 on the first welding tooth base seat 102.

[0072] In some embodiments, the adapter welding head device 10 further comprises a driving mechanism. The driving mechanism is connected to the first welding head body 101 and / or the second welding head body 201. The driving mechanism is used to drive the first welding head body 101 and the second welding head body 201 to move closer to or away from each other. Preferably, the driving mechanism is connected to the first welding head body 101 located above, and the second welding head body 201 is fixed, and the driving mechanism drives the first welding head body 101 to move to realize the movement of the first welding head body 101 to move closer to or away from the second welding head body 201.

[0073] Embodiment 1

[0074] In this embodiment, the adapter welding head device 10 described above is used to weld a composite copper current collector.

[0075] In this embodiment, the high molecular base material of the composite current collector 20 is polyethylene terephthalate (PET), and the adapter 21 is a 6 μm copper foil. The ultrasonic welding is performed by the adapter welding head device 10 as shown in Figure 1 .

[0076] Referring to Figure 1 , 3 , the first tooth head 1031 is distributed on the second, fourth, and sixth column positions of the first row of the first tooth base seat 102, the first tooth head 1031 is distributed on the first, third, fifth, and seventh column positions of the second row of the first tooth base seat 102, and the first tooth head 1031 is distributed on the second, fourth, and sixth column positions of the third row of the first tooth base seat 102. Referring to Figure 5 , the second tooth head 2031 is distributed on the first, third, fifth, and seventh column positions of the first row of the second tooth base seat 202, the second tooth head 2031 is distributed on the second, fourth, and sixth column positions of the second row of the second tooth base seat 202, and the second tooth head 2031 is distributed on the first, third, fifth, and seventh column positions of the third row of the second tooth base seat 202.

[0077] The first tooth base seat 102 is a quadrangular pyramid, and the included angle α1 between the side surface and the bottom surface of the first tooth base seat 102 is 60°. The plurality of first tooth heads 1031 on the first tooth base seat 102 are hemispheres, and the plurality of first tooth heads 1031 on the first tooth base seat 102 are distributed in three rows and three columns at equal intervals. The contact surface of the first tooth head 1031 is coated with an Al-Cu-Fe quasicrystal coating with a thickness of 10 μm by a thermal spraying method. Referring to Figure 7 , the height h1 of the first tooth base seat 102 is greater than the diameter R1 of the first tooth head 1031, and referring to Figure 6 , the distance d1 between adjacent first tooth heads 1031 in each row is equal to the distance d1 between adjacent first tooth heads 1031 in each column, and d1 < R1. R1 < the length L1 of the top surface of the first tooth base seat 102. Further, R1 = 0.2L1.

[0078] Correspondingly, the second welding tooth base pedestal 202 is a quadrangular frustum, the second welding tooth heads 2031 on the second welding tooth base pedestal 202 are hemispheres, and the second welding tooth heads 2031 on the second welding tooth base pedestal 202 are distributed in three rows and three columns at equal intervals. The diameter R2 of the second welding tooth head 2031 is equal to the diameter R1, the height h2 of the second welding tooth base pedestal 202 is equal to the height h1, and the angle α2 between the side surface and the bottom surface of the second welding tooth base pedestal 202 is equal to the angle α1. The distance d2 between the adjacent second welding tooth heads 2031 on each row is equal to the distance d1. The length L2 of the top surface of the second welding tooth base pedestal 202 is equal to the length L1. That is, the first welding head body 101 and the second welding head body 201 are basically the same in shape and size, and the difference lies in that the second welding tooth assemblies 203 on the second welding tooth base pedestal 202 are distributed in a staggered manner with the first welding tooth assemblies 103 on the first welding tooth base pedestal 102.

[0079] During welding, the welding energy is 38 J, the welding amplitude is 28 μm, and the welding pressure is 20 PSI. The driving mechanism drives the first welding head body 101 to move to realize the approach to the second welding head body 201 to complete the composite copper current collector adapter welding, and there is no bonding phenomenon in the welding process. The maximum T-type peeling load of the product after welding in this embodiment is 260 N. Compared with the maximum T-type peeling load of 200 N of the comparative sample under the same welding conditions of the traditional welding machine, the adapter welding head device 10 of the present application can effectively improve the bonding force of the composite current collector 20 and improve the welding efficiency.

[0080] Embodiment 2

[0081] In this embodiment, the adapter welding head device 10 is used to weld the composite aluminum current collector.

[0082] In this embodiment, the high polymer substrate of the composite current collector 20 is polyethylene terephthalate (PET), the adapter 21 is an aluminum foil with a thickness of 12 μm, and the adapter welding head device 10 is used for ultrasonic welding. The adapter welding head device 10 is basically the same as the adapter welding head device 10 in Embodiment 1, and the difference lies in that the first welding tooth base pedestal 102 is a quadrangular frustum, the angle α1 between the side surface and the bottom surface of the first welding tooth base pedestal 102 is 55°, and R1 is equal to 0.25 L1.

[0083] During welding, the welding energy is 40 J, the welding amplitude is 30 μm, and the welding pressure is 20 PSI. The driving mechanism drives the first welding head body 101 to move to realize the approach to the second welding head body 201 to complete the composite copper current collector adapter welding, and there is no bonding phenomenon in the welding process. The maximum T-type peeling load of the product after welding in this embodiment is 270 N. Compared with the maximum T-type peeling load of 245 N of the comparative sample under the same welding conditions of the traditional welding machine, the adapter welding head device 10 of the present application can effectively improve the bonding force of the composite current collector 20 and improve the welding efficiency.

[0084] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0085] The technical features of the above embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the description.

[0086] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A welding head adapter, characterized in that, include: A first welding mechanism includes a first welding head body, a first welding tooth base, and a first welding tooth assembly. The first welding head body has a plurality of first welding tooth bases, and some of the first welding tooth bases are connected to the first welding tooth assembly. The first welding tooth assembly includes a plurality of first welding tooth heads. The height of the first welding tooth base relative to the first welding head body is greater than or equal to the height of the first welding tooth head relative to the first welding tooth base. The second welding mechanism includes a second welding head body, a second welding tooth base, and a second welding tooth assembly. The second welding head body has several second welding tooth bases, and some of these bases are connected to second welding tooth assemblies. Each welding tooth assembly includes several second welding tooth heads. The height of the second welding tooth base relative to the second welding head body is greater than or equal to the height of the second welding tooth head relative to the second welding tooth base. In use, the second welding head body is positioned opposite to the first welding head body, and the multiple second welding tooth assemblies on the second welding tooth bases are staggered from the multiple first welding tooth assemblies on the first welding tooth bases. After this staggered distribution, when the second welding head body and the first welding head body are in contact, the second welding tooth base with the second welding tooth assembly engages with the first welding tooth base without the first welding tooth assembly, and the second welding tooth base without the second welding tooth assembly engages with the first welding tooth base with the first welding tooth assembly.

2. The adapter welding head device according to claim 1, characterized in that, The first welding head body has a first welding mating surface on one side for cooperating with the second welding head body, and a plurality of first welding tooth base bases are provided on the first welding mating surface.

3. The adapter welding head device according to claim 1, characterized in that, The second welding head body has a second welding mating surface on one side for cooperating with the first welding head body, and a plurality of second welding tooth base bases are provided on the second welding mating surface.

4. The adapter welding head device according to any one of claims 1 to 3, characterized in that, Multiple first welding teeth are arranged in a matrix on the first welding tooth base; And / or, multiple second welding teeth are arranged in a matrix on the second welding tooth base.

5. The adapter welding head device according to any one of claims 1 to 3, characterized in that, The first welding tooth has an anti-stick coating; And / or, the second welding tooth has an anti-stick coating.

6. The adapter welding head device according to claim 5, characterized in that, The anti-stick coating material is an Al-Cu-Fe quasi-crystalline coating; And / or, the thickness of the anti-stick coating is 5μm to 30μm; And / or, the anti-stick coating is prepared by physical thermal spraying, vapor deposition or ion plating.

7. The adapter welding head device according to any one of claims 1 to 3 and 6, characterized in that, Multiple first welding tooth base bases are arranged in a matrix on the first welding head body.

8. The adapter welding head device according to any one of claims 1 to 3 and 6, characterized in that, Multiple second welding tooth bases are arranged in a matrix on the second welding head body.

9. The adapter welding head device according to any one of claims 1 to 3 and 6, characterized in that, The first welding tooth base is one or more of the following: a frustum, a truncated cone, a hemispherical body, and an arc shape. And / or, the second welding tooth base is one or more of the following: a frustum, a truncated cone, a hemispherical body, and an arc shape.

10. The adapter welding head device according to claim 9, characterized in that, The adapter welding head device further includes a driving mechanism, which is connected to the first welding head body and / or the second welding head body. The driving mechanism is used to drive the first welding head body and the second welding head body to move closer to each other or separate.

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