A cold plate friction stir welding tool

Abstract

The present application discloses a cold plate friction stir welding tool. The cold plate friction stir welding tool provided by the present application includes: a base plate and a bearing assembly, the base plate is provided with a first guide portion; the bearing assembly is arranged on the base plate, the bearing assembly includes a suction cup assembly, the suction cup assembly is used to carry the plate to be welded, the suction cup assembly is provided with a second guide portion, and the suction cup assembly is connected to the first guide portion through the second guide portion; wherein, one of the first guide portion and the second guide portion is a first guide hole, and the other is a first guide column, the first guide hole is opened perpendicular to the base plate, and extends in a first direction parallel to the base plate, the first guide column is inserted into the first guide hole, and can move in the first guide hole along the first direction, so that the suction cup assembly can move relative to the base plate along the first direction. It is convenient for the suction cup assembly to carry the plate to be welded, and through the first guide hole and the first guide column, it can carry plates to be welded of different specifications, thereby improving the stability and compatibility of the tooling.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a cold plate friction stir welding tool. Background Art

[0002] With the development of new energy storage technology, the energy storage system has higher and higher requirements for cooling. Generally, the cold plates in the energy storage system need to have liquid cooling function. At present, there are two main structures of energy storage cold plates: aluminum profile welding and stamping brazing. Among them, aluminum profile welding cold plates are mainly connected and formed by stir friction welding. Stir friction welding tooling is the key tooling in the cold plate processing process.

[0003] At present, it is necessary to design stir friction welding tooling of different specifications for cold plates of different specifications. The existing stir friction welding tooling fixes the cold plate to be processed by clamping the clamp arm, which has poor stability and requires different lengths of clamp arms to be designed for cold plates of different specifications. As a result, the same tooling is difficult to apply to cold plates of different specifications to be processed and the cost is high. Summary of the invention

[0004] The main purpose of the present application is to provide a cold plate friction stir welding tooling, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a cold plate friction stir welding tool, which includes: a base plate and a bearing assembly, the base plate is provided with a first guide portion; the bearing assembly is arranged on the base plate, the bearing assembly includes a suction cup assembly, the suction cup assembly is used to carry the plate to be welded, the suction cup assembly is provided with a second guide portion, and the suction cup assembly is connected to the first guide portion through the second guide portion; wherein, one of the first guide portion and the second guide portion is a first guide hole, and the other is a first guide column, the first guide hole is opened perpendicular to the base plate and extends in a first direction parallel to the base plate, the first guide column is inserted into the first guide hole, and can move in the first guide hole along the first direction, so that the suction cup assembly can move relative to the base plate along the first direction.

[0006] In some embodiments, the first guide portion is a first guide column, the second guide portion is a first guide hole, the suction cup assembly includes a support seat and a suction cup platform, the support seat is arranged on the bottom plate, the suction cup platform is arranged on the side of the support seat away from the bottom plate, and the first guide hole is opened in the support seat.

[0007] In some embodiments, the base plate is further provided with a first fixing hole, and the first guide column is inserted into the first fixing hole and the first guide hole so that the first guide column is fixed relative to the base plate.

[0008] In some embodiments, the supporting assembly also includes a first supporting member for supporting the plate to be welded. In a first direction, the first supporting member and the suction cup assembly are arranged in sequence. The first supporting member is provided with a second guide hole perpendicular to the base plate. The second guide hole extends along the first direction. The base plate is also provided with a second guide column, which is inserted into the second guide hole so that the first supporting member can move relative to the base plate along the first direction.

[0009] In some embodiments, the second guide hole includes a first hole segment and a second hole segment that are interconnected, the first hole segment is closer to the plate to be welded than the second hole segment, the radial dimension of one end of the second guide column facing the plate to be welded is larger than the radial dimension of the second hole segment, and the radial dimension of the first hole segment is larger than the radial dimension of the second hole segment so as to fully accommodate the second guide column.

[0010] In some embodiments, the supporting assembly also includes a second supporting member for supporting the plate to be welded. In a second direction perpendicular to the first direction, the second supporting member is located on both sides of the suction cup assembly. The second supporting member is opened in a third guide hole perpendicular to the base plate. The third guide hole extends along the second direction. The base plate is also provided with a third guide column, which is inserted into the third guide hole so that the second supporting member can move relative to the base plate along the second direction.

[0011] In some embodiments, the third guide hole includes a third hole segment and a fourth hole segment that are interconnected, the third hole segment is closer to the plate to be welded than the fourth hole segment, the radial dimension of one end of the third guide column facing the plate to be welded is larger than the radial dimension of the fourth hole segment, and the radial dimension of the third hole segment is larger than the radial dimension of the fourth hole segment so as to fully accommodate the third guide column.

[0012] In some embodiments, the cold plate stir friction welding tooling also includes a fixing component, which is arranged on the peripheral side of the load-bearing component. The fixing component also includes a first pressing portion and a first matching portion. In a first direction, the first pressing portion is arranged on one side of the load-bearing component, and the first matching portion is arranged on the other side of the load-bearing component. The first pressing portion and the first matching portion are arranged opposite to each other, so that the first pressing portion presses the plate to be welded to the first matching portion along the first direction.

[0013] In some embodiments, the fixing component also includes a second pressing portion and a second matching portion. In a second direction perpendicular to the first direction, the second pressing portion is arranged on one side of the load-bearing component, and the second matching portion is arranged on the other side of the load-bearing component. The second pressing portion and the second matching portion are arranged opposite to each other, so that the second pressing portion presses the plate to be welded to the second matching portion along the second direction.

[0014] In some embodiments, the fixing assembly further includes a third pressing portion, which is spaced relative to the supporting assembly in a third direction perpendicular to the first direction and the second direction, so that the third pressing portion presses the plate to be welded to the supporting assembly along the third direction.

[0015] Compared with the prior art, the present application provides a cold plate friction stir welding tool, which includes: a base plate and a supporting assembly, the base plate is provided with a first guide portion; the supporting assembly is arranged on the base plate, the supporting assembly includes a suction cup assembly, the suction cup assembly is used to support the plate to be welded, the suction cup assembly is provided with a second guide portion, and the suction cup assembly is connected to the first guide portion through the second guide portion; wherein, one of the first guide portion and the second guide portion is a first guide hole, and the other is a first guide column, the first guide hole is opened perpendicular to the base plate and extends in a first direction parallel to the base plate, the first guide column is inserted into the first guide hole, and can move in the first guide hole along the first direction, so that the suction cup assembly can move relative to the base plate along the first direction. Through the above-mentioned implementation mode, the carrying assembly carries the plate to be welded through the suction cup assembly, and the suction cup assembly can cooperate with each other through the first guide hole and the first guide column to adjust the position of the suction cup assembly, so as to facilitate the suction cup assembly to carry plates to be welded of different specifications. As a result, the carrying stability of the cold plate friction stir welding tooling on the plates to be welded is improved, and the cold plate friction stir welding tooling can carry cold plates to be welded of different specifications, thereby improving the compatibility and applicability of the cold plate friction stir welding tooling and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a first structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0018] Figure 2 is a second structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0019] Figure 3 is a third structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0020] Figure 4 is a fourth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0021] Figure 5 is a fifth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0022] Figure 6 is based on Figure 5 The schematic cross-sectional view of the cold plate friction stir welding tooling along the AA direction is shown;

[0023] Figure 7 is a sixth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0024] Figure 8 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the BB direction is shown;

[0025] Fig. 9 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the CC direction is shown;

[0026] Fig.10 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the DD direction is shown;

[0027] Fig.11 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the EE direction is shown;

[0028] Fig.12 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the FF direction is shown.

[0029] Figure numbers: cold plate friction stir welding tooling 1; bottom plate 10; first guide portion 11; first guide column 111; first fixing hole 12; second guide column 13; third guide column 14; bearing assembly 20; suction cup assembly 21; second guide portion 211; first guide hole 212; support seat 213; suction cup platform 214; first support member 22; second guide hole 221; first hole section 2211; second hole section 2212; second support member 23; third guide hole 231; third hole section 2311; fourth hole section 2312; fixing assembly 30; first holding portion 31; first matching portion 32; second holding portion 33; second matching portion 34; third holding portion 35; elbow clamp 40; lifting ring 50; plate body 2 to be welded; first direction x1; second direction x2; third direction x3. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] With the development of new energy storage technology, the energy storage system has higher and higher requirements for cooling. Generally, the cold plates in the energy storage system need to have liquid cooling function. At present, there are two main structures of energy storage cold plates: aluminum profile welding and stamping brazing. Among them, aluminum profile welding cold plates are mainly connected and formed by stir friction welding. Stir friction welding tooling is the key tooling in the cold plate processing process.

[0039] At present, it is necessary to design stir friction welding tooling of different specifications for cold plates of different specifications. The existing stir friction welding tooling fixes the cold plate to be processed by clamping the clamp arm, which has poor stability and requires different lengths of clamp arms to be designed for cold plates of different specifications. As a result, the same tooling is difficult to apply to cold plates of different specifications to be processed and the cost is high.

[0040] Please refer to Figure 1-Figure 12 , Figure 1 is a first structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application; Figure 2 is a second structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application; Figure 3 is a third structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application; Figure 4 is a fourth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application;

[0041] Figure 5is a fifth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application; Figure 6 is based on Figure 5 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the AA direction is shown; Figure 7 is a sixth structural schematic diagram of a cold plate friction stir welding tool according to one or more embodiments of the present application; Figure 8 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the BB direction is shown; Fig. 9 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the CC direction is shown; Fig.10 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the DD direction is shown; Fig.11 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the EE direction is shown; Fig.12 is based on Figure 7 The cross-sectional schematic diagram of the cold plate friction stir welding tooling along the FF direction is shown.

[0042] To solve the above problems, the present application provides a cold plate friction stir welding tool 1, which includes: a base plate 10 and a bearing assembly 20, the base plate 10 is provided with a first guide portion 11; the bearing assembly 20 is arranged on the base plate 10, the bearing assembly 20 includes a suction cup assembly 21, the suction cup assembly 21 is used to carry the plate body 2 to be welded, the suction cup assembly 21 is provided with a second guide portion 211, and the suction cup assembly 21 is connected to the first guide portion 11 through the second guide portion 211; wherein, one of the first guide portion 11 and the second guide portion 211 is a first guide hole 212, and the other is a first guide column 111, the first guide hole 212 is opened perpendicular to the base plate 10, and extends in a first direction x1 parallel to the base plate 10, the first guide column 111 is inserted into the first guide hole 212, and can move in the first guide hole 212 along the first direction x1, so that the suction cup assembly 21 can move relative to the base plate 10 along the first direction x1.

[0043] The bearing assembly 20 is arranged on the bottom plate 10, and the bottom plate 10 can provide fixation and support for the bearing assembly 20. The bearing assembly 20 includes a suction cup assembly 21, and the suction cup assembly 21 is used to carry the plate body 2 to be welded. The suction cup assembly 21 can generate a negative pressure area, and adsorb the plate body 2 to be welded through the negative pressure area, so as to facilitate the adsorption and fixation of the plate body 2 to be welded. It should be noted that the suction cup assembly 21 fixes the plate body 2 to be welded by adsorption, and the adsorption force is large and evenly applied to the plate body 2 to be welded, which is convenient for improving the fixation stability of the plate body 2 to be welded. It can be understood that during the loading process, the plate body 2 to be welded is placed on the bearing assembly 20 from the side of the bearing assembly 20 away from the bottom plate 10, and the suction cup assembly 21 is located between the bottom plate 10 and the plate body 2 to be welded, which alleviates the risk of interference between the suction cup assembly 21 and the loading path of the plate body 2 to be welded. A suction cup assembly 21 may include at least one suction cup. For example, a suction cup assembly 21 may include one, two, three, four or more suction cups, so as to improve the adsorption stability of the suction cup assembly 21 on the plate body 2 to be welded.

[0044] The plate body 2 to be welded can be formed into a cold plate through welding. The cold plate is also called a cooling plate or a heat sink. It is an important component in electric vehicles, energy storage systems and other equipment using batteries. Its main function is to effectively manage the thermal state of the battery module and ensure that the battery operates within a safe and efficient temperature range. For example, the cold plate can dissipate heat from the battery through the circulation of a cooling medium. The material of the cold plate may include but is not limited to aluminum and other materials. Stir friction welding refers to the use of heat generated by the friction between a high-speed rotating welding tool and a workpiece to partially melt the material to be welded. When the welding tool moves forward along the welding interface, the plasticized material flows from the front of the welding tool to the rear under the action of the rotating friction of the welding tool, and forms a dense solid phase weld under the extrusion of the welding tool. In some application scenarios, at least two plates 2 to be welded need to be welded and fixed together by stir friction welding. For example, taking the number of plates 2 to be welded as two, the two plates 2 to be welded can be supported and fixed by a cold plate stir friction welding tool 1 so that the respective welding interfaces of the two plates 2 to be welded are aligned, wherein alignment can refer to that the welding interfaces of the two plates 2 to be welded are facing each other, thereby facilitating the formation of a weld when the stir friction welding stirring head moves along the junction of the welding interfaces of the two plates 2 to be welded, so as to weld and fix the two plates 2 to be welded. The number of suction cup assemblies 21 can be multiple, and one plate 2 to be welded can be set corresponding to one or more suction cup assemblies 21. For example, taking the number of plate 2 to be welded as two, the number of suction cup assemblies 21 can be two, three or more. When the number of suction cup assemblies 21 is two, the two suction cup assemblies 21 can respectively adsorb one plate 2 to be welded. When the number of suction cup assemblies 21 is three, one of the suction cup assemblies 21 can adsorb one of the plate 2 to be welded, and the remaining two suction cup assemblies 21 can adsorb another plate 2 to be welded. The number of suction cup assemblies 21 can be set according to actual needs.

[0045] The bottom plate 10 is provided with a first guide portion 11, and the suction cup assembly 21 is provided with a second guide portion 211. The first guide portion 11 and the second guide portion 211 can cooperate with each other to connect the suction cup assembly 21 to the bottom plate 10. One of the first guide portion 11 and the second guide portion 211 is a first guide hole 212, and the other is a first guide column 111. Exemplarily, the first guide portion 11 can be the first guide hole 212, and the second guide portion 211 can be the first guide column 111, or the first guide portion 11 can be the first guide column 111, and the second guide portion 211 can be the first guide hole 212. The first guide hole 212 is opened perpendicular to the base plate 10 and extends in a first direction x1 parallel to the base plate 10. The first guide column 111 is inserted into the first guide hole 212 and can move in the first guide hole 212 along the first direction x1. Exemplarily, the first guide portion 11 is the first guide column 111, and the second guide portion 211 is the first guide hole 212. The first guide column 111 can reciprocate in the first guide hole 212 along the first direction x1 according to actual needs, so that the suction cup assembly 21 can move relative to the base plate 10 along the first direction x1, thereby facilitating the adjustment of the relative position of the suction cup assembly 21 and the base plate 10, so that the suction cup assembly 21 can be adsorbed on different positions of the plate 2 to be welded according to the specific requirements of different specifications of the plate 2 to be welded, thereby improving the compatibility of the cold plate stir friction welding tooling 1.

[0046] It is understandable that different plates 2 to be welded have different specifications. When welding plates 2 of different specifications, the positions of the welds relative to the bottom plate 10 are also different. In some embodiments, the suction cup assembly 21 can be adsorbed on the main surface of the plate 2 to be welded, and the orthographic projection of the suction cup assembly 21 on the bottom plate 10 is located within the orthographic projection of a single plate 2 to be welded on the bottom plate 10, so that the suction cup assembly 21 can avoid the boundary to be welded between adjacent plates 2 to be welded. It should be noted that if the suction cup assembly 21 is located at the boundary to be welded between adjacent plates 2 to be welded, and different plates 2 to be welded are adsorbed by the same suction cup at the same time, it is easy to cause leakage at the boundary to be welded, which leads to adsorption failure and the risk of the plate 2 to be welded detaching. Through the cooperation of the first guide column 111 and the first guide hole 212, the position of the suction cup assembly 21 can be adjusted accordingly according to the actual position of the boundary to be welded of the plates 2 of different specifications, so that the suction cup assembly 21 avoids the boundary to be welded and improves the adsorption reliability of the suction cup assembly 21.

[0047] Through the above-mentioned embodiment, the supporting component 20 supports the plate body 2 to be welded through the suction cup component 21, and the suction cup component 21 can cooperate with each other through the first guide hole 212 and the first guide column 111 to adjust the position of the suction cup component 21, so as to facilitate the suction cup component 21 to carry the plate bodies 2 to be welded of different specifications, thereby improving the bearing stability of the cold plate stir friction welding tooling 1 on the plate body 2 to be welded, and enabling the cold plate stir friction welding tooling 1 to carry cold plates to be welded of different specifications, thereby improving the compatibility and applicability of the cold plate stir friction welding tooling 1 and saving costs.

[0048] In some embodiments, the first guide portion 11 is a first guide column 111, the second guide portion 211 is a first guide hole 212, the suction cup assembly 21 includes a support seat 213 and a suction cup platform 214, the support seat 213 is disposed on the bottom plate 10, the suction cup platform 214 is disposed on the side of the support seat 213 away from the bottom plate 10, and the first guide hole 212 is opened in the support seat 213. The first guide portion 11 is a first guide column 111, the second guide portion 211 is a first guide hole 212, and the first guide column 111 is inserted into the first guide hole 212, so as to facilitate the connection between the suction cup assembly 21 and the bottom plate 10, and facilitate the movement of the suction cup assembly 21 relative to the bottom plate 10 along the first direction x1. The support seat 213 can provide fixation and support for the suction cup platform 214, and the suction cup platform 214 is used to contact with the plate body 2 to be welded and adsorb the plate body 2 to be welded. In some application scenarios, the suction cup platform 214 may be provided with a vacuum generator and a plurality of suction cups. The vacuum generator is provided on the side of the suction cup away from the plate 2 to be welded. The vacuum generator may provide negative pressure for the suction cup, thereby facilitating the suction cup to adsorb the plate 2 to be welded. It should be noted that when there are multiple suction cup assemblies 21, the main surfaces of the suction cup platforms 214 of the multiple suction cup assemblies 21 that contact the plate 2 to be welded are at the same distance from the bottom plate 10, so that the main surfaces of the suction cup platforms 214 of the multiple suction cup assemblies 21 that contact the plate 2 to be welded are located in the same plane, thereby alleviating the risk of height differences between different plates 2 to be welded. The first guide hole 212 is opened on the support seat 213, which facilitates the connection between the support seat 213 and the base plate 10 through the first guide hole 212. Compared with opening the first guide hole 212 or the first guide column 111 on the suction cup platform 214, the molding difficulty of the suction cup assembly 21 is reduced, and at the same time, the influence of the first guide hole 212 on the flatness of the suction cup platform 214 is reduced, thereby improving the bearing effect of the suction cup platform 214 on the plate 2 to be welded.

[0049] In some embodiments, the base plate 10 is further provided with a first fixing hole 12, and the first guide column 111 is inserted into the first fixing hole 12 and the first guide hole 212, so that the first guide column 111 is fixed relative to the base plate 10. It is understandable that the first guide column 111 can be detachably connected to the base plate 10, and the base plate 10 can be provided with a first fixing hole 12, and the first guide column 111 is inserted into the first fixing hole 12 to be fixedly connected to the base plate 10, and the first guide column 111 is also inserted into the first guide hole 212, so that the suction cup assembly 21 can move relative to the base plate 10. The first guide column 111 can include but is not limited to a bolt, a screw, a latch, etc. Exemplarily, the first fixing hole 12 and the first guide hole 212 are connected, and the first guide column 111 can be inserted into the first guide hole 212 and the first fixing hole 12 in sequence along the opening direction of the first guide hole 212. In some application scenarios, the radial dimension of the end of the first guide column 111 facing away from the bottom plate 10 toward the plate body 2 to be welded is greater than the radial dimension of the first guide hole 212, and is exposed outside the first guide hole 212, so that the support seat 213 is pressed against the bottom plate 10 through the end of the first guide toward the plate body 2 to be welded, thereby improving the connection stability between the support seat 213 and the bottom plate 10. Therefore, the first guide column 111 is detachably connected to the bottom plate 10 through the first fixing hole 12, which reduces the difficulty of forming the bottom plate 10 and facilitates the maintenance and parts replacement of the cold plate friction stir welding tool 1.

[0050] In some embodiments, the bearing assembly 20 further includes a first support member 22 for bearing the plate 2 to be welded. In the first direction x1, the first support member 22 and the suction cup assembly 21 are arranged in sequence. The first support member 22 is provided with a second guide hole 221 perpendicular to the bottom plate 10. The second guide hole 221 extends along the first direction x1. The bottom plate 10 is further provided with a second guide column 13. The second guide column 13 is inserted into the second guide hole 221 so that the first support member 22 can move relative to the bottom plate 10 along the first direction x1. The first support member 22 can be used to bear the plate 2 to be welded. The distance between the surface of the first support member 22 in contact with the plate 2 to be welded and the bottom plate 10 can be the same as the distance between the surface of the suction cup assembly 21 in contact with the plate 2 to be welded and the bottom plate 10, so that the plate 2 to be welded remains horizontal relative to the bottom plate 10. In the first direction x1, the first support member 22 and the suction cup assembly 21 are arranged in sequence, and the number of the first support members 22 can be one, two or more. For example, taking the number of suction cup assemblies 21 as two, the two suction cup assemblies 21 are arranged at intervals in the first direction x1. When the number of the first support member 22 is one, in the first direction x1, the first support member 22 can be arranged on one side of the two suction cup assemblies 21, or on the other side of the two suction cup assemblies 21, or the first support member 22 can be arranged between the two suction cup assemblies 21. When there are two or more first support members 22, the first support members 22 can all be located on one side of the two suction cup assemblies 21, or all be located on the other side of the two suction cup assemblies 21, or the first support member 22 can all be located between the two suction cup assemblies 21, or part of the first support member 22 is located on one side of the two suction cup assemblies 21, and the rest of the first support member 22 is located between the two suction cup assemblies 21 or on the other side, and so on. The second guide column 13 can be detachably connected to the base plate 10. For example, the base plate 10 can be provided with a second fixing hole connected to the second guide hole 221, and the second guide column 13 can be inserted into the second fixing hole and the second guide hole 221 respectively. The second guide column 13 can reciprocate in the second guide hole 221 along the first direction x1 according to actual needs, so that the first support member 22 can move relative to the base plate 10 along the first direction x1, thereby facilitating the adjustment of the relative position of the first support member 22 and the base plate 10, so that the first support member 22 can be supported at different positions of the plate body 2 to be welded according to the specific requirements of the plate body 2 to be welded of different specifications, thereby improving the compatibility of the cold plate stir friction welding tool 1. Therefore, the bearing stability of the cold plate stir friction welding tool 1 for the plate body with welding is further improved by the first support member 22, and the first support member 22 can move relative to the base plate 10 by the second guide column 13 and the second guide hole 221, thereby improving the compatibility of the cold plate stir friction welding tool 1.

[0051] In some embodiments, the second guide hole 221 includes a first hole section 2211 and a second hole section 2212 that are interconnected. The first hole section 2211 is closer to the plate body 2 to be welded than the second hole section 2212. The radial dimension of the end portion of the second guide column 13 facing the plate body 2 to be welded is greater than the radial dimension of the second hole section 2212. The radial dimension of the first hole section 2211 is greater than the radial dimension of the second hole section 2212 so as to fully accommodate the second guide column 13. It can be understood that the radial dimension of the end of the second guide column 13 facing the plate 2 to be welded is larger than the radial dimension of the second hole section 2212, so that the second guide column 13 can press the first support member 22 to the base plate 10 through the end, thereby improving the connection stability between the first support member 22 and the base plate 10, and the radial dimension of the first hole section 2211 is larger than the radial dimension of the second hole section 2212. It can be understood that the radial dimension of the first hole section 2211 is greater than or equal to the radial dimension of the end of the second guide column 13 facing the welding plate, so that the first hole section 2211 can completely accommodate the end of the second guide column 13 facing the welding plate, thereby alleviating the risk that the end of the second guide column 13 facing the plate 2 to be welded cannot be accommodated in the second guide hole 221, resulting in the second guide column 13 protruding from the first support member 22 and interfering with the plate 2 to be welded. Therefore, the cooperation between the first hole section 2211 and the second hole section 2212 facilitates better accommodation of the second guide column 13 and improves the flatness of the first support member 22.

[0052] In some embodiments, the supporting assembly 20 also includes a second support member 23 for supporting the plate 2 to be welded. In the second direction x2 perpendicular to the first direction x1, the second support member 23 is located on both sides of the suction cup assembly 21. The second support member 23 is opened in a third guide hole 231 perpendicular to the base plate 10. The third guide hole 231 extends along the second direction x2. The base plate 10 is also provided with a third guide column 14, which is inserted into the third guide hole 231 so that the second support member 23 can move relative to the base plate 10 along the second direction x2. In the second direction x2, the second support members 23 and the suction cup assemblies 21 are arranged in sequence, and the number of the second support members 23 can be one, two or more. For example, taking the number of suction cup assemblies 21 as two, the two suction cup assemblies 21 are arranged at intervals in the second direction x2. When the number of the second support members 23 is one, in the second direction x2, the second support member 23 can be arranged on one side of the two suction cup assemblies 21, or on the other side of the two suction cup assemblies 21, or the second support member 23 can be arranged between the two suction cup assemblies 21. When there are two or more second support members 23, the second support members 23 can all be located on one side of the two suction cup assemblies 21, or all be located on the other side of the two suction cup assemblies 21, or the second support members 23 can all be located between the two suction cup assemblies 21, or part of the second support members 23 can be located on one side of the two suction cup assemblies 21, and the rest of the second support members 23 can be located between the two suction cup assemblies 21 or on the other side, and so on. The third guide column 14 can be detachably connected to the base plate 10. For example, the base plate 10 can be provided with a third fixing hole connected to the third guide hole 231, and the third guide column 14 can be inserted into the third fixing hole and the third guide hole 231 respectively. The third guide column 14 can reciprocate along the second direction x2 in the third guide hole 231 according to actual needs, so that the second support member 23 can move relative to the base plate 10 along the second direction x2, thereby facilitating the adjustment of the relative position of the second support member 23 and the base plate 10, so that the second support member 23 can be supported at different positions of the plate body 2 to be welded according to the specific requirements of the plate body 2 to be welded of different specifications, thereby improving the compatibility of the cold plate stir friction welding tool 1. Therefore, the bearing stability of the cold plate stir friction welding tool 1 to the plate body with welding is further improved by the second support member 23, and the second support member 23 can move relative to the base plate 10 by the third guide column 14 and the third guide hole 231, thereby improving the compatibility of the cold plate stir friction welding tool 1.

[0053] In some embodiments, the third guide hole 231 includes a third hole section 2311 and a fourth hole section 2312 that are interconnected. The third hole section 2311 is closer to the plate 2 to be welded than the fourth hole section 2312. The radial dimension of the end portion of the third guide column 14 facing the plate 2 to be welded is greater than the radial dimension of the fourth hole section 2312. The radial dimension of the third hole section 2311 is greater than the radial dimension of the fourth hole section 2312 so as to fully accommodate the third guide column 14. It can be understood that the radial dimension of the end of the third guide column 14 facing the plate 2 to be welded is larger than the radial dimension of the fourth hole section 2312, so that the third guide column 14 can press the second support member 23 to the base plate 10 through the end, thereby improving the connection stability between the second support member 23 and the base plate 10, and the radial dimension of the third hole section 2311 is larger than the radial dimension of the fourth hole section 2312. It can be understood that the radial dimension of the third hole section 2311 is greater than or equal to the radial dimension of the end of the third guide column 14 facing the welding plate, so that the third hole section 2311 can completely accommodate the end of the third guide column 14 facing the welding plate, thereby alleviating the risk that the end of the third guide column 14 facing the plate 2 to be welded cannot be accommodated in the third guide hole 231, resulting in the third guide column 14 protruding from the second support member 23 and interfering with the plate 2 to be welded. Therefore, the cooperation between the third hole section 2311 and the fourth hole section 2312 facilitates better accommodation of the third guide column 14 and improves the flatness of the second support member 23.

[0054] In some embodiments, the cold plate friction stir welding tool 1 further includes a fixing assembly 30, which is arranged on the peripheral side of the bearing assembly 20, and the fixing assembly 30 further includes a first pressing portion 31 and a first matching portion 32. In the first direction x1, the first pressing portion 31 is arranged on one side of the bearing assembly 20, and the first matching portion 32 is arranged on the other side of the bearing assembly 20, and the first pressing portion 31 and the first matching portion 32 are arranged opposite to each other, so that the first pressing portion 31 presses the plate body 2 to be welded on the first matching portion 32 along the first direction x1. The first pressing portion 31 can be driven by a driving member including but not limited to a cylinder, a motor, etc. The first pressing portion 31 can move along the first direction x1 and press the plate body 2 to be welded on the first matching portion 32, thereby improving the fixing stability of the plate body 2 to be welded on the bearing assembly 20. In some application scenarios, the first mating part 32 includes a first mating main body and a first mating block. The thickness dimension of the first mating block in the first direction x1 is adjustable, so that the thickness dimension of the first mating part 32 in the first direction x1 is adjustable, and then the first mating part 32 can adjust the pressing position of the plate 2 to be welded in the first direction x1 through the first mating blocks of different thicknesses, thereby improving the compatibility of the cold plate stir friction welding tooling 1.

[0055] In some embodiments, the fixing assembly 30 further includes a second pressing portion 33 and a second matching portion 34. In a second direction x2 perpendicular to the first direction x1, the second pressing portion 33 is disposed on one side of the bearing assembly 20, and the second matching portion 34 is disposed on the other side of the bearing assembly 20, and the second pressing portion 33 and the second matching portion 34 are disposed opposite to each other, so that the second pressing portion 33 presses the plate 2 to be welded on the second matching portion 34 along the second direction x2. The second pressing portion 33 can be driven by a driving member including but not limited to a cylinder, a motor, etc. The second pressing portion 33 can move along the second direction x2 and press the plate 2 to be welded on the second matching portion 34, thereby improving the fixing stability of the plate 2 to be welded on the bearing assembly 20. In some application scenarios, the second mating part 34 includes a second mating main part and a second mating block. The thickness dimension of the second mating block in the second direction x2 is adjustable, so that the thickness dimension of the second mating part 34 in the second direction x2 is adjustable, and then the second mating part 34 can adjust the pressing position of the plate 2 to be welded in the second direction x2 through the second mating blocks of different thicknesses, thereby improving the compatibility of the cold plate stir friction welding tooling 1.

[0056] In some embodiments, the fixing assembly 30 further includes a third pressing portion 35, which is arranged at a relative interval with the bearing assembly 20 in a third direction x3 perpendicular to the first direction x1 and the second direction x2, so that the third pressing portion 35 presses the plate 2 to be welded on the bearing assembly 20 along the third direction x3. The third pressing portion 35 can be driven by a driving member including but not limited to a cylinder, a motor, etc. The third pressing portion 35 can move along the third direction x3 and press the plate 2 to be welded on the bearing assembly 20, thereby further improving the fixing stability of the plate 2 to be welded on the bearing assembly 20.

[0057] In some embodiments, the fixing assembly 30 further includes a toggle clamp 40, which is disposed on the peripheral side of the bearing assembly 20. The toggle clamp 40 has a pre-contact surface, which is configured to contact the plate 2 to be welded in the first direction x1 before the first pressing portion 31, and / or contact the plate 2 to be welded in the second direction x2 before the second pressing portion 33 when the toggle clamp 40 is in a clamped state. It should be noted that when the first pressing portion 31 and the second pressing portion 33 simultaneously squeeze the plate 2 to be welded, the plate 2 to be welded moves in the first direction x1 and the second direction x2 at the same time, and there is a risk of warping and displacement of the plate 2 to be welded. The pre-contact surface of the toggle clamp 40 can be used to contact the plate 2 to be welded first and pre-position the plate 2 to be welded, thereby reducing the displacement exposure required for the plate 2 to be welded when being pressed by the first pressing portion 31 and the second pressing portion 33, thereby alleviating the risk of warping and displacement of the plate 2 to be welded, and improving the reliability of the cold plate stir friction tooling.

[0058] In some embodiments, the cold plate friction stir tooling further includes a hanging ring 50, which is disposed on the side of the base plate 10 facing the bearing assembly 20. Exemplarily, the base plate 10 is in a square shape, and the number of the hanging rings 50 may be four, and the four hanging rings 50 may be respectively disposed at the four corners of the square base plate 10. Thus, the cold plate friction stir tooling may be hoisted by the hanging ring 50, thereby broadening the use scenarios of the cold plate friction stir tooling and improving the applicability of the cold plate friction stir tooling.

[0059] In summary, the cold plate friction stir welding tool 1 provided in the present application includes: a base plate 10 and a supporting assembly 20, the base plate 10 is provided with a first guide portion 11; the supporting assembly 20 is arranged on the base plate 10, the supporting assembly 20 includes a suction cup assembly 21, the suction cup assembly 21 is used to support the plate body 2 to be welded, the suction cup assembly 21 is provided with a second guide portion 211, and the suction cup assembly 21 is connected to the first guide portion 11 through the second guide portion 211; wherein, one of the first guide portion 11 and the second guide portion 211 is a first guide hole 212, and the other is a first guide column 111, the first guide hole 212 is opened perpendicular to the base plate 10, and extends in a first direction x1 parallel to the base plate 10, the first guide column 111 is inserted into the first guide hole 212, and can move in the first guide hole 212 along the first direction x1, so that the suction cup assembly 21 can move relative to the base plate 10 along the first direction x1. Through the above-mentioned embodiment, the supporting component 20 supports the plate body 2 to be welded through the suction cup component 21, and the suction cup component 21 can cooperate with each other through the first guide hole 212 and the first guide column 111 to adjust the position of the suction cup component 21, so as to facilitate the suction cup component 21 to carry the plate bodies 2 to be welded of different specifications, thereby improving the bearing stability of the cold plate stir friction welding tooling 1 on the plate body 2 to be welded, and enabling the cold plate stir friction welding tooling 1 to carry cold plates to be welded of different specifications, thereby improving the compatibility and applicability of the cold plate stir friction welding tooling 1 and saving costs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A cold plate friction stir welding tool, characterized in that: The cold plate friction stir welding tool comprises: A bottom plate having a first guide portion; A bearing assembly is arranged on the bottom plate, the bearing assembly includes a suction cup assembly, the suction cup assembly is used to bear the plate to be welded, the suction cup assembly is provided with a second guide portion, and the suction cup assembly is connected to the first guide portion through the second guide portion; Among them, one of the first guide part and the second guide part is a first guide hole, and the other is a first guide column, the first guide hole is opened perpendicular to the base plate and extends in a first direction parallel to the base plate, the first guide column is inserted into the first guide hole, and can move along the first direction in the first guide hole, so that the suction cup assembly can move relative to the base plate along the first direction.

2. The cold plate friction stir welding tool according to claim 1, characterized in that: The first guide portion is the first guide column, the second guide portion is the first guide hole, the suction cup assembly includes a support seat and a suction cup platform, the support seat is arranged on the bottom plate, the suction cup platform is arranged on the side of the support seat away from the bottom plate, and the first guide hole is opened in the support seat.

3. The cold plate friction stir welding tool according to claim 2, characterized in that: The bottom plate is further provided with a first fixing hole, and the first guide column is inserted into the first fixing hole and the first guide hole so that the first guide column is fixed relative to the bottom plate.

4. The cold plate friction stir welding tool according to any one of claim 1, characterized in that: The supporting assembly also includes a first supporting member for supporting the plate to be welded. In the first direction, the first supporting member and the suction cup assembly are arranged in sequence. The first supporting member is provided with a second guide hole perpendicular to the base plate. The second guide hole extends along the first direction. The base plate is also provided with a second guide column. The second guide column is inserted into the second guide hole so that the first supporting member can move relative to the base plate along the first direction.

5. The cold plate friction stir welding tool according to claim 4, characterized in that: The second guide hole includes a first hole segment and a second hole segment which are interconnected. The first hole segment is closer to the plate to be welded than the second hole segment. The radial dimension of an end portion of the second guide column facing the plate to be welded is larger than the radial dimension of the second hole segment. The radial dimension of the first hole segment is larger than the radial dimension of the second hole segment so as to fully accommodate the second guide column.

6. The cold plate friction stir welding tool according to claim 4, characterized in that: The supporting assembly also includes a second supporting member for supporting the plate to be welded. In a second direction perpendicular to the first direction, the second supporting member is located on both sides of the suction cup assembly. The second supporting member is opened in a third guide hole perpendicular to the base plate. The third guide hole extends along the second direction. The base plate is also provided with a third guide column, and the third guide column is inserted into the third guide hole so that the second supporting member can move relative to the base plate along the second direction.

7. The cold plate friction stir welding tool according to claim 6, characterized in that: The third guide hole includes a third hole segment and a fourth hole segment which are interconnected. The third hole segment is closer to the plate to be welded than the fourth hole segment. The radial dimension of an end portion of the third guide column facing the plate to be welded is greater than the radial dimension of the fourth hole segment. The radial dimension of the third hole segment is greater than the radial dimension of the fourth hole segment so as to fully accommodate the third guide column.

8. The cold plate friction stir welding tool according to claim 1, characterized in that: The cold plate friction stir welding tooling also includes a fixing component, which is arranged on the circumferential side of the load-bearing component. The fixing component also includes a first pressing portion and a first matching portion. In the first direction, the first pressing portion is arranged on one side of the load-bearing component, and the first matching portion is arranged on the other side of the load-bearing component. The first pressing portion and the first matching portion are arranged opposite to each other, so that the first pressing portion presses the plate to be welded to the first matching portion along the first direction.

9. The cold plate friction stir welding tool according to claim 6, characterized in that: The fixing assembly also includes a second pressing portion and a second matching portion. In a second direction perpendicular to the first direction, the second pressing portion is arranged on one side of the load-bearing assembly, and the second matching portion is arranged on the other side of the load-bearing assembly, and the second pressing portion and the second matching portion are arranged opposite to each other, so that the second pressing portion presses the plate to be welded to the second matching portion along the second direction.

10. The cold plate friction stir welding tool according to claim 7, characterized in that: The fixing assembly also includes a third pressing portion, which is arranged relative to the bearing assembly in a third direction perpendicular to the first direction and the second direction, so that the third pressing portion presses the plate to be welded to the bearing assembly along the third direction.

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