Pressing tool and welding system
By designing a tight workwear and welding system for battery module production, the problem of two sets of equipment requires two sets of equipment in the existing technology, and the efficient and low -cost welding process is achieved.
Patent Information
- Application Number
- CN202420465725.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-11
AI Technical Summary
In the production of existing battery modules, the welding of the pole ear and the sampling sheet requires two sets of equipment, resulting in high cost and low efficiency.
Design a type of pressure work, including the substrate, the first pressure component, and the second pressure component. Welding of a set of equipment.
The welding of polar ears and samples only requires one set of equipment, which reduces the cost of input and improves production efficiency.
Smart Images
Figure CN222404102U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production equipment, in particular to a pressing tool and a welding system. Background Art
[0002] With the development of electric vehicles and energy storage industries, more and more battery module assembly technologies have been produced. Most of them require soft-pack modules connected in series. Since the welding end faces are relatively compact, the whole plate is often welded at one time. In addition, the tabs and the sample pieces need to be separated into two stations and welded separately with two sets of welding tools, which requires two sets of equipment, resulting in high investment costs.
[0003] Therefore, there is an urgent need to provide a clamping tool and a welding system to solve the problems existing in the prior art to a certain extent. Utility Model Content
[0004] The purpose of the utility model is to provide a clamping tool and a welding system, so as to solve to a certain extent the problem that the welding of the battery cell tabs and the sampling sheets needs to be carried out by two sets of equipment at the current stage, resulting in increased costs and reduced efficiency.
[0005] The utility model provides a clamping tool, including a substrate, a first press-fitting assembly and a second press-fitting assembly; the first press-fitting assembly and the second press-fitting assembly are both movably connected to the substrate, and the first press-fitting assembly and the second press-fitting assembly can reciprocate along the thickness direction of the substrate; the first press-fitting surface of the first press-fitting assembly and the second press-fitting surface of the second press-fitting assembly are located on the same plane in a non-press-fitting state, a first welding hole is formed on the substrate corresponding to the first press-fitting assembly, a second welding hole is formed corresponding to the second press-fitting assembly, a third welding hole is formed on the first press-fitting assembly at a position corresponding to the first welding hole, and a fourth welding hole is formed on the second press-fitting assembly at a position corresponding to the second welding hole.
[0006] The first press-fit assembly includes a first movable component and a first press-fit component; one end of the first movable component is located on one side of the substrate, and the other end passes through the substrate to connect with the first press-fit component, and the third welding hole is formed on the first press-fit component.
[0007] Specifically, the first movable component includes a first end, a first movable portion, and a second end; the first movable portion is arranged through the substrate and can slide relative to the substrate, the first end and the second end are relatively arranged at two ends of the first movable portion, and the sliding distance of the first movable portion is limited between the first end and the second end.
[0008] Furthermore, there are two first movable parts, the first end parts are arranged in a one-to-one correspondence with the first movable parts, the ends of the two first movable parts away from the first end parts are connected to the second end parts, and the first press-fitting component is connected to the end of the first movable part away from the first end parts.
[0009] Furthermore, a first elastic member is sleeved on the first movable portion, one end of the first elastic member abuts against the base plate, and the other end of the first elastic member abuts against the second end portion.
[0010] The second press-fit assembly includes a second movable component and a second press-fit component; one end of the second movable component is located on one side of the substrate, and the other end passes through the substrate to connect with the second press-fit component, and the fourth welding hole is formed on the second press-fit component.
[0011] Specifically, the second movable component includes a third end, a second movable portion and a fourth end; the second movable portion is arranged through the substrate and can slide relative to the substrate, the third end and the fourth end are relatively arranged at two ends of the second movable portion, and the sliding distance of the second movable portion is limited between the third end and the fourth end.
[0012] Furthermore, there are two second movable parts, which are relatively arranged at the two ends of the second welding hole, and the third end and the fourth end are arranged one-to-one with the second movable parts. The two ends of the second press-fitting component are respectively connected to the two fourth ends and are horizontally mounted above the second welding hole.
[0013] Furthermore, a second elastic member is sleeved on the second movable portion, one end of the second elastic member abuts against the base plate, and the other end of the second elastic member abuts against the fourth end portion.
[0014] Compared with the prior art, the clamping tool provided by the utility model has the following advantages:
[0015] The clamping tool provided by the utility model comprises a substrate, a first press-fitting assembly and a second press-fitting assembly; the first press-fitting assembly and the second press-fitting assembly are both movably connected to the substrate, and the first press-fitting assembly and the second press-fitting assembly can reciprocate along the thickness direction of the substrate; the first press-fitting surface of the first press-fitting assembly and the second press-fitting surface of the second press-fitting assembly are located on the same plane in a non-press-fitting state, a first welding hole is formed on the substrate corresponding to the first press-fitting assembly, a second welding hole is formed corresponding to the second press-fitting assembly, a third welding hole is formed at the position of the first press-fitting assembly corresponding to the first welding hole, and a fourth welding hole is formed at the position of the second press-fitting assembly corresponding to the second welding hole.
[0016] From this analysis, it can be seen that by movably connecting the first press-fitting assembly and the second press-fitting assembly on the substrate and enabling the first press-fitting assembly and the second press-fitting assembly to reciprocate along the thickness direction of the substrate, the function of pressing the tabs and sampling sheets of the battery cell can be realized.
[0017] By forming a first welding hole at a position corresponding to the first press-fit component on the substrate, forming a second welding hole at a position corresponding to the second press-fit component, forming a third welding hole corresponding to the first welding hole on the first press-fit component, and forming a fourth welding hole corresponding to the second welding hole on the second press-fit component, the welding equipment can sequentially weld the sampling piece and the pole ear of the battery cell through the first welding hole and the third welding hole and the second welding hole and the fourth welding hole, so that only one set of equipment is needed to complete the welding of the sampling piece and the pole ear, which not only saves investment costs, but also eliminates the need for multiple pressing and positioning, thereby speeding up production efficiency.
[0018] In addition, the utility model also provides a welding system, including a welding device, a positioning device and the above-mentioned clamping tool; the clamping tool is connected to the positioning device, and the welding device can respectively pass through the first welding hole and the third welding hole and the second welding hole and the fourth welding hole for welding.
[0019] The welding system of the clamping fixture provided by the present application can realize the positioning of the clamping fixture through the positioning device, so that the clamping fixture can be moved in the direction close to or away from the battery cell through the positioning device to realize the clamping action of the battery cell's pole ear and the sampling piece. Since the clamping fixture provided by the present application has a first clamping component and a second clamping component, the sampling piece and the pole ear can be clamped at the same time. Finally, the welding device passes through the first welding hole and the third welding hole and the second welding hole and the fourth welding hole in sequence to realize the welding of the sampling piece and the pole ear, and then the corresponding welding of the battery cell pole ear and the sampling piece can be realized through one welding device, which greatly saves the investment cost and improves the production efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic structural diagram of a first-viewing angle of a clamping tool provided in an embodiment of the utility model;
[0022] Figure 2 A schematic structural diagram of a second viewing angle of a clamping tool provided in an embodiment of the utility model.
[0023] In the figure: 1-substrate; 101-first welding hole; 102-second welding hole; 2-first movable part; 3-first end; 4-second end; 5-first clamping member; 501-third welding hole; 6-second movable part; 7-third end; 8-fourth end; 9-second clamping member; 901-fourth welding hole. DETAILED DESCRIPTION
[0024] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.
[0025] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.
[0029] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.
[0030] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.
[0031] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.
[0032] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.
[0033] like Figure 1 As shown, the utility model provides a clamping tool, including a substrate 1, a first press-fitting assembly and a second press-fitting assembly; the first press-fitting assembly and the second press-fitting assembly are both movably connected to the substrate 1, and the first press-fitting assembly and the second press-fitting assembly can reciprocate along the thickness direction of the substrate 1; the first press-fitting surface of the first press-fitting assembly and the second press-fitting surface of the second press-fitting assembly are located on the same plane in a non-press-fitting state, a first welding hole 101 is formed on the substrate 1 corresponding to the first press-fitting assembly, a second welding hole 102 is formed corresponding to the second press-fitting assembly, a third welding hole 501 is formed at the position of the first press-fitting assembly corresponding to the first welding hole 101, and a fourth welding hole 901 is formed at the position of the second press-fitting assembly corresponding to the second welding hole 102.
[0034] Compared with the prior art, the clamping tool provided by the utility model has the following advantages:
[0035] The pressing tool provided by the utility model has a first pressing assembly and a second pressing assembly movably connected on the substrate 1, and enables the first pressing assembly and the second pressing assembly to reciprocate along the thickness direction of the substrate 1, thereby realizing the function of pressing the pole ears and sampling sheets of the battery cell.
[0036] By forming a first welding hole 101 at a position corresponding to the first press-fit component on the substrate 1, forming a second welding hole 102 at a position corresponding to the second press-fit component, forming a third welding hole 501 corresponding to the first welding hole 101 on the first press-fit component, and forming a fourth welding hole 901 corresponding to the second welding hole 102 on the second press-fit component, the welding equipment can sequentially weld the sampling piece and the pole ear of the battery cell through the first welding hole 101 and the third welding hole 501 and the second welding hole 102 and the fourth welding hole 901, so that only one set of equipment is needed to complete the welding of the sampling piece and the pole ear, which not only saves the investment cost, but also eliminates the need for multiple pressing and positioning, thereby speeding up the production efficiency.
[0037] It can be understood that the first press-fit assembly and the second press-fit assembly in the present application are both multiple, and Figure 1 As shown, the first press-fit assembly and the second press-fit assembly in the present application are arranged in a one-to-one correspondence. Since the battery cell has one more set of tabs than the sample sheet, the number of the second press-fit assembly in the present application is one more than the number of the first press-fit assembly. The number of the corresponding first press-fit assembly and the second press-fit assembly is designed according to the number of battery cells in the specific battery, not limited to Figure 1 The number of items displayed.
[0038] Alternatively, if Figure 1 Combination Figure 2 As shown, the first press-fit assembly in the present application includes a first movable component and a first press-fit component; one end of the first movable component is located on one side of the substrate 1, and the other end passes through the substrate 1 to be connected to the first press-fit component, and the third welding hole 501 is formed on the first press-fit component.
[0039] In this way, the first movable component in the present application can adopt a bolt structure, and accordingly, a screw hole is formed on the first press-fit component. By passing the rod of the bolt through the substrate 1 and connecting with the screw hole of the first press-fit component, it is possible to limit the movement distance of the first movable component by limiting the screw head and the first press-fit component itself, and to achieve a detachable connection between the first movable component, the first press-fit component and the substrate 1, thereby facilitating the maintenance of the overall structure.
[0040] It can be understood that the substrate 1 in the present application is formed with a perforation, and the perforation is a light hole structure, so that the first movable component can slide smoothly relative to the substrate 1.
[0041] Alternatively, if Figure 1 Combination Figure 2 As shown, the first movable component in the present application includes a first end portion 3, a first movable portion 2, and a second end portion 4; the first movable portion 2 is arranged through the substrate 1 and can slide relative to the substrate 1, the first end portion 3 and the second end portion 4 are relatively arranged at two ends of the first movable portion 2, and the sliding distance of the first movable portion 2 is limited between the first end portion 3 and the second end portion 4.
[0042] In this embodiment, the first movable part 2 can be a cylindrical rod-shaped structure with a smooth outer wall, and a thread is formed on the outer wall of one end facing the first end part 3. Accordingly, the first end part 3 can be a nut, so that a detachable connection between the first end part 3 and the first movable part 2 can be achieved through the cooperation of the nut and the thread.
[0043] On this basis, the second end portion 4 in the present application can be an integral structure with the first movable portion 2 or a separate structure, and can be detachably connected by means of snap connection, plug connection or threaded connection. When the second end portion 4 is an integral structure with the first movable portion 2, the second end portion 4 and the first movable portion 2 can be a bolt structure, and the second end portion 4 is actually a screwing head, thereby improving the overall structural strength, and the second end portion 4 can increase the contact area with the first clamping member 5, thereby improving the connection stability of the first clamping member 5.
[0044] Preferably, there are two first movable parts 2 in the present application, the first end parts 3 are arranged in a one-to-one correspondence with the first movable parts 2, the ends of the two first movable parts 2 away from the first end parts 3 are connected to the second end parts 4, and the first press-fitting component is connected to the end of the first movable part 2 away from the first end parts 3.
[0045] By providing two first movable parts 2, the area of the second end portion 4 can be increased, thereby improving the supporting capacity of the first pressing member 5 and ensuring that the first pressing member 5 can stably press the sampling sheet during the actual pressing operation.
[0046] It should be supplemented here that the first pressing member 5 in the present application is connected to the second end 4, and as Figure 1 As shown, the first welding hole 101 in the present application is located on the side of the second movable part 6 , so one end of the first clamping member 5 is connected to the second end 4 , and the other end extends in a direction close to the second clamping member 9 and does not contact the second movable part 6 .
[0047] Optionally, a first elastic member is sleeved on the first movable portion 2 in the present application, one end of the first elastic member abuts against the substrate 1 , and the other end of the first elastic member abuts against the second end portion 4 .
[0048] The first elastic member in the present application is a coil spring. By setting the first elastic member, the automatic resetting of the first clamping component 5 can be achieved. That is, during operation, the positioning device in the welding system is connected to the substrate 1 and can resist the first end 3. When the first clamping component 5 contacts the sampling piece, the pressure pushes the first movable part 2 to move relative to the substrate 1 and compresses the first elastic member. When a certain pressure is reached, the clamping action is stopped, thereby achieving the clamping of the sampling piece and starting the welding operation.
[0049] When welding is completed, the positioning device is reset, the first pressing member 5 is separated from the sampling piece, and the first elastic member is reset after losing pressure, thereby driving the second end 4 to reset, thereby realizing automatic reset of the first pressing member 5 .
[0050] It should be additionally explained here that the structure abutting the first end 3 in the present application may adopt a cylinder. When the cylinder pressure reaches a certain level, the cylinder stops pushing and maintains the pressure state, thereby achieving the compression action on the sampling piece.
[0051] Alternatively, if Figure 1 Combination Figure 2 As shown, the second press-fit assembly in the present application includes a second movable component and a second press-fit component; one end of the second movable component is located on one side of the substrate 1, and the other end passes through the substrate 1 to be connected to the second press-fit component, and a fourth welding hole 901 is formed on the second press-fit component.
[0052] In this way, the second movable component in the present application can adopt the same structure as the first movable component, that is, a bolt structure can be adopted. Accordingly, a screw hole is formed on the second press-fit component. By passing the rod of the bolt through the substrate 1 and connecting with the screw hole of the second press-fit component, the screw head itself and the second press-fit component can be used to limit the movement distance of the second movable component, and the second movable component can be detachably connected to the second press-fit component and the substrate 1, thereby facilitating the maintenance of the overall structure.
[0053] It can be understood that the substrate 1 in the present application is also formed with a through hole at a position corresponding to the second movable component, and the through hole is a light hole structure, so that the second movable component can slide smoothly relative to the substrate 1.
[0054] It should be noted here that a shaft sleeve can be set in the above-mentioned perforation, so as to ensure that the substrate 1 is not worn to a certain extent, improve the handle of the substrate 1, and avoid the problem of sliding and shaking of the first movable component and the second movable component due to excessive wear of the perforation.
[0055] Alternatively, if Figure 1 Combination Figure 2 As shown, the second movable component in the present application includes a third end 7, a second movable portion 6 and a fourth end 8; the second movable portion 6 is arranged through the substrate 1 and can slide relative to the substrate 1, the third end 7 and the fourth end 8 are relatively arranged at the two ends of the second movable portion 6, and the sliding distance of the second movable portion 6 is limited between the third end 7 and the fourth end 8.
[0056] In this embodiment, the second movable portion 6 has the same structure as the first movable portion 2 , and correspondingly, the third end portion 7 has the same structure as the first end portion 3 , so as to achieve a detachable connection between the third end portion 7 and the first movable portion 2 .
[0057] On this basis, the fourth end portion 8 in the present application can be an integral structure with the second movable portion 6 or a separate structure, and can be detachably connected by means of snap connection, plug connection or threaded connection. When the fourth end portion 8 and the second movable portion 6 are an integral structure, the fourth end portion 8 and the second movable portion 6 can be a bolt structure, and the fourth end portion 8 is actually a screwing head, thereby improving the overall structural strength, and the fourth end portion 8 can increase the contact area with the first clamping member 5, thereby improving the connection stability of the second clamping member 9.
[0058] Preferably, if Figure 1 Combination Figure 2 As shown, there are two second movable parts 6 in the present application, and the two second movable parts 6 are relatively arranged at the two ends of the second welding hole 102, the third end 7 and the fourth end 8 are arranged one-to-one corresponding to the second movable part 6, and the two ends of the second press-fitted component are respectively connected to the two fourth end 8, and are horizontally mounted above the second welding hole 102.
[0059] Since the size of the pole ear is larger than that of the sampling piece, the length of the second welding hole 102 is larger. Therefore, by relatively arranging the two second movable parts 6 at the two ends of the second welding hole 102, stable support for the second press-fitting component can be achieved, and the second press-fitting component can be stably arranged above the second welding hole 102. By forming a fourth welding hole 901 corresponding to the second welding hole 102 on the second press-fitting component, welding of the pole ear is achieved.
[0060] Further preferably, a second elastic member is sleeved on the second movable portion 6 in the present application, one end of the second elastic member abuts against the substrate 1 , and the other end abuts against the fourth end portion 8 .
[0061] The structure and operation of the second elastic member in the present application are the same as those of the first elastic member, and will not be described in detail here.
[0062] In addition, the utility model also provides a welding system, including a welding device, a positioning device and the above-mentioned clamping tool; the clamping tool is connected to the positioning device, and the welding device can respectively pass through the first welding hole 101 and the third welding hole 501 and the second welding hole 102 and the fourth welding hole 901 for welding.
[0063] The welding system of the clamping fixture provided by the present application can realize the positioning of the clamping fixture through the positioning device, so that the clamping fixture can be moved in the direction close to or away from the battery cell through the positioning device to realize the clamping action of the battery cell's pole ear and the sampling piece. Since the clamping fixture provided by the present application has a first clamping component and a second clamping component, the sampling piece and the pole ear can be clamped at the same time. Finally, the welding device passes through the first welding hole 101 and the third welding hole 501 and the second welding hole 102 and the fourth welding hole 901 in sequence to realize the welding of the sampling piece and the pole ear, and then the corresponding welding of the battery cell pole ear and the sampling piece can be realized through one welding device, which greatly saves the investment cost and improves the production efficiency to a certain extent.
[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A pressing tool, characterized in that: It includes a substrate, a first press-fit assembly and a second press-fit assembly; The first press-fitting assembly and the second press-fitting assembly are both movably connected to the substrate, and the first press-fitting assembly and the second press-fitting assembly can reciprocate along the thickness direction of the substrate; The first press-fit surface of the first press-fit component and the second press-fit surface of the second press-fit component are located on the same plane in a non-press-fit state, a first welding hole is formed on the substrate corresponding to the first press-fit component, a second welding hole is formed corresponding to the second press-fit component, a third welding hole is formed at a position of the first press-fit component corresponding to the first welding hole, and a fourth welding hole is formed at a position of the second press-fit component corresponding to the second welding hole.
2. The pressing tool according to claim 1, characterized in that: The first press-fit assembly includes a first movable member and a first press-fit member; One end of the first movable component is located at one side of the substrate, and the other end passes through the substrate to be connected to the first press-fit component. The third welding hole is formed on the first press-fit component.
3. The pressing tool according to claim 2, characterized in that: The first movable member includes a first end, a first movable portion, and a second end; The first movable part is disposed through the substrate and can slide relative to the substrate. The first end and the second end are disposed at two ends of the first movable part opposite to each other, and a sliding distance of the first movable part is limited between the first end and the second end.
4. The pressing tool according to claim 3, characterized in that: There are two first movable parts, the first end parts are arranged in one-to-one correspondence with the first movable parts, the ends of the two first movable parts away from the first end parts are connected to the second end parts, and the first pressing component is connected to the end of the first movable part away from the first end parts.
5. The pressing tool according to claim 3, characterized in that: The first movable portion is sleeved with a first elastic member, one end of the first elastic member is in contact with the base plate, and the other end of the first elastic member is in contact with the second end portion.
6. The pressing tool according to claim 1, characterized in that: The second press-fit assembly includes a second movable member and a second press-fit member; One end of the second movable component is located at one side of the substrate, and the other end passes through the substrate to be connected with the second press-fit component. The fourth welding hole is formed on the second press-fit component.
7. The pressing tool according to claim 6, characterized in that: The second movable member includes a third end, a second movable portion and a fourth end; The second movable part is arranged through the substrate and can slide relative to the substrate. The third end and the fourth end are relatively arranged at two ends of the second movable part, and the sliding distance of the second movable part is limited between the third end and the fourth end.
8. The pressing tool according to claim 7, characterized in that: There are two second movable parts, which are relatively arranged at the two ends of the second welding hole. The third end and the fourth end are arranged in a one-to-one correspondence with the second movable parts. The two ends of the second press-fitting component are respectively connected to the two fourth ends and are horizontally mounted above the second welding hole.
9. The pressing tool according to claim 7, characterized in that: The second movable portion is sleeved with a second elastic member, one end of the second elastic member is in contact with the base plate, and the other end of the second elastic member is in contact with the fourth end portion.
10. A welding system, characterized in that: It comprises a welding device, a positioning device and a pressing tool as described in any one of claims 1 to 9 above; The clamping tool is connected to the positioning device, and the welding device can respectively pass through the first welding hole and the third welding hole and the second welding hole and the fourth welding hole to perform welding.