Tool clamp for battery cell welding and welding equipment

Abstract

The utility model relates to the field of battery production and manufacturing, in particular to a battery cell welding tool clamp and welding equipment, which comprises a clamp bottom plate and a battery cell bearing seat positioned on the clamp bottom plate, wherein fixed limiting pieces are arranged on the clamp bottom plate and correspond to two orthogonal side edges forming one end angle of the battery cell bearing seat; and a first movable guide assembly and a second movable guide assembly are respectively arranged on the other two side edges of the battery cell bearing seat, so that the battery cell is clamped on the battery cell bearing seat. Through cooperative work of the fixed limiting piece and the movable guide assemblies, the accuracy in the welding process is ensured, the first movable guide assembly and the second movable guide assembly on the two side edges of the battery cell bearing base are adjusted to be aligned with the corresponding side edges of the battery cell, the battery cell is fixed, the clamp is allowed to adapt to the battery cells of different sizes, and the universality and flexibility of the clamp are improved.

Description

Technical Field

[0001] The utility model relates to the field of battery production and manufacturing, and in particular to a tooling fixture and welding equipment for battery core welding. Background Art

[0002] Ultrasonic welding of lithium batteries is widely used in the industry. Ultrasonic welding has very high requirements on the positioning accuracy of the fixture. Ensuring the consistency of the positioning fixture of ultrasonic welding can improve the overall quality rate of the battery cell manufacturing end. Currently, fixed limiting methods are mostly used in the ultrasonic welding process. Due to certain differences in the width and length of the placed battery cells, the force and thermal deformation generated during the welding process cause the battery cells to be forced to shift and deform, which in turn causes the adapter to shift, resulting in the risk of contact between the adapter and the aluminum shell.

[0003] Therefore, in order to solve the technical problem that the width and length of the battery cell and the welding fixture cannot be moved adaptively during the welding process, it is necessary to design a tooling fixture and welding equipment for battery cell welding. Utility Model Content

[0004] In order to solve the technical problems mentioned in the background technology, the utility model provides a fixture and welding equipment for battery core welding.

[0005] In a first aspect, the utility model provides a fixture for welding a battery core, comprising:

[0006] A fixture bottom plate and a battery cell support seat located on the fixture bottom plate; wherein

[0007] The fixing limiters are arranged on the fixture bottom plate corresponding to the two orthogonal sides constituting one end corner of the battery cell support seat; and

[0008] The other two sides of the battery cell support seat are respectively provided with a first movable guide assembly and a second movable guide assembly so as to clamp the battery cell on the battery cell support seat.

[0009] Furthermore, the first movable guide assembly includes: a locking trigger, a spring pull rod, and a movable stop block linked to the locking trigger through the spring pull rod; wherein

[0010] When stationary, the movable stop block limits the other side edge of the battery cell;

[0011] The locking trigger is toggled to tilt the movable stop block through the spring pull rod to release the edge limit of the battery cell.

[0012] Further, the second movable guide assembly includes: a locking member;

[0013] The locking member is connected to the fixture bottom plate via a reset mechanism;

[0014] When stationary, the locking member limits one side edge of the battery cell, and the locking member is pushed outward to release the side limit of the battery cell.

[0015] Furthermore, at least two movable stop blocks are provided.

[0016] Furthermore, the fixed limiting members are in two groups, and are respectively arranged corresponding to the locking members and the movable stop blocks in the first and second movable guide assemblies.

[0017] Furthermore, the fixed limiting member corresponding to the locking member is in a semi-cylindrical structure, that is, a semi-cylindrical limiting member.

[0018] Furthermore, at least three semi-cylindrical limiting members are provided and are evenly arranged.

[0019] Furthermore, the fixed limiting member corresponding to the movable stop block is in an L-shaped structure, that is, an L limiting member.

[0020] Furthermore, at least two L-limiting members are provided.

[0021] In a second aspect, the utility model provides a welding device, including a workbench, to which the workbench is connected a fixture for welding the battery core as described above.

[0022] The beneficial effect of the utility model is that a fixed limiter and a movable guide assembly are arranged on the battery cell supporting seat. Through the cooperation of the fixed limiter and the movable guide assembly, the position of the battery cell on the supporting seat can be accurately located to ensure the accuracy of the welding process. The first and second movable guide assemblies on the other two sides of the battery cell supporting seat are adjusted to align with the corresponding sides of the battery cell and fix the battery cell, allowing the clamp to adapt to battery cells of different sizes, thereby increasing the versatility and flexibility of the clamp.

[0023] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A schematic diagram of the structure of a fixture for welding a battery core according to some embodiments is shown;

[0027] Figure 2 A top view of a fixture according to some embodiments is shown;

[0028] Figure 3 A moving state diagram of the first and second movable guide components involved in some embodiments is shown;

[0029] Figure 4 A moving state diagram of a locking trigger and a movable stop block according to some embodiments is shown;

[0030] In the figure:

[0031] 100 fixture base plate, 200 battery cell bearing seat, 301 movable stop block, 302 L limiter, 501 semi-cylindrical limiter, 401 locking trigger, 402 locking member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 As shown, at least one embodiment provides a tooling fixture for battery cell welding, comprising: a fixture base plate 100 and a battery cell supporting seat 200 located on the fixture base plate 100; wherein fixed limit members are arranged on the fixture base plate 100 corresponding to two orthogonal side edges constituting one end angle of the battery cell supporting seat 200; and the other two side edges of the battery cell supporting seat 200 are respectively provided with a first and a second movable guide assembly to clamp the battery cell on the battery cell supporting seat 200.

[0034] like Figure 2As shown, the battery cell is placed on the battery cell supporting seat 200 of the fixture, and one end corner of the battery cell corresponds to the fixed limit piece on the fixture bottom plate 100. The fixed limit piece is used to fix the two orthogonal sides of one end corner of the battery cell supporting seat 200. According to the size of the battery cell, the first and second movable guide components on the other two sides of the battery cell supporting seat are adjusted to align with the corresponding sides of the battery cell and fix the battery cell.

[0035] like Figure 3-Figure 4 As shown, the first movable guide assembly includes: a locking trigger 401, a spring pull rod, and a movable stop block 301 linked to the locking trigger 401 through the spring pull rod; wherein when stationary, the movable stop block 301 limits the other side edge of the battery cell; the locking trigger 401 is moved, and the movable stop block 301 is tilted through the spring pull rod to release the limitation of the side edge of the battery cell. The second movable guide assembly includes: a locking member 402; the locking member 402 is connected to the fixture bottom plate 100 through a reset mechanism; when stationary, the locking member 402 limits the side edge of the battery cell, and the locking member 402 is moved outward to release the limitation of the side edge of the battery cell. At least two movable stop blocks 301 are provided.

[0036] Among them, the first and second movable guiding components include but are not limited to being connected to the clamp base plate 100 by means of a spring pull rod, pulling the locking member 402 to move in a direction away from the battery cell support seat 200, thereby adjusting the length direction of the battery cell; and the locking trigger member 401 and the movable stop block 301 are connected at the bottom of the clamp base plate 100 by means of a spring pull rod, pulling the locking trigger member 401 to move in a direction away from the battery cell support seat 200, and the spring pull rod drives the movable stop block 301 to move, and the elastic force of the spring is used to drive the movable stop block 301 to move to adapt to battery cells of different widths.

[0037] Through the corresponding locking mechanism, the movable battery cell is locked on the battery cell support seat to ensure the stability of the battery cell during the welding process. And the specific reset mechanism and the connection method of the spring pull rod belong to the scope of the prior art, and this solution does not make any improvement to the above procedures. For those skilled in the art, according to the description of the connection method of the locking trigger 401, the movable stop block 301 and the locking member 402 in the embodiment, the relevant prior art can be selected to implement it. Therefore, the above description is a clear and feasible solution for those skilled in the art.

[0038] In some embodiments, the fixed stoppers are in two groups, and are respectively arranged corresponding to the locking member 402 and the movable stop block 301 in the first and second movable guide assemblies. The two groups of fixed stoppers are used in conjunction with the first and second movable guide assemblies to provide a more flexible positioning and fixing method to accommodate cells of different shapes and sizes, and the fixed stoppers help protect the electrical contact points of the cells to avoid poor contact due to vibration or impact.

[0039] In some embodiments, the fixed limiter 501 corresponding to the locking member 402 is a semi-cylindrical structure, i.e., a semi-cylindrical limiter 501. At least three semi-cylindrical limiters 501 are provided and are evenly arranged. The fixed limiter 302 corresponding to the movable stop block 301 is an L-shaped structure, i.e., an L limiter 302. At least two L limiters 302 are provided. The vertical part of the L limiter 302 is used to abut the side of the battery cell, and the battery cell is evenly fixed on the battery cell support seat 200 symmetrically, thereby increasing stability and reducing the rotation or movement of the battery cell during welding.

[0040] At least one embodiment provides a welding device, including the aforementioned tooling fixture for battery core welding.

[0041] In summary, the utility model arranges a fixed limiter and a movable guide assembly on the battery cell supporting seat. Through the cooperation of the fixed limiter and the movable guide assembly, the position of the battery cell on the supporting seat can be accurately located to ensure the accuracy of the welding process. The first and second movable guide assemblies on the other two sides of the battery cell supporting seat are adjusted to align with the corresponding sides of the battery cell and fix the battery cell, allowing the clamp to adapt to battery cells of different sizes, thereby increasing the versatility and flexibility of the clamp.

[0042] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. With the above-mentioned ideal embodiments of the utility model as inspiration, through the above-mentioned description, relevant staff can make various changes and modifications without departing from the scope of the technical idea of ​​the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fixture for welding a battery core, characterized in that: include: A fixture bottom plate (100) and a battery cell support seat (200) located on the fixture bottom plate (100); wherein Fixed stoppers are arranged on the fixture bottom plate (100) at two orthogonal sides corresponding to forming an end corner of the battery cell support seat (200); and The other two sides of the battery cell support seat (200) are respectively provided with a first and a second movable guide assembly so that the battery cell can be clamped on the battery cell support seat (200).

2. The fixture according to claim 1, characterized in that: The first movable guide assembly comprises: a locking trigger member (401), a spring pull rod, and a movable stop block (301) linked to the locking trigger member (401) via the spring pull rod; wherein When stationary, the movable stop block (301) limits the other side edge of the battery cell; The locking trigger (401) is toggled to tilt the movable stop block (301) via the spring pull rod, thereby releasing the position limit of the side edge of the battery cell.

3. The fixture according to claim 1, characterized in that: The second movable guide assembly comprises: a locking member (402); The locking member (402) is connected to the fixture bottom plate (100) via a reset mechanism; When stationary, the locking member (402) limits one side edge of the battery cell, and the locking member (402) is pushed outward to release the limitation on the side edge of the battery cell.

4. The fixture according to claim 2, characterized in that: At least two movable stop blocks (301) are provided.

5. The fixture according to claim 2 or 3, characterized in that: The fixed limiting members are in two groups and are respectively arranged corresponding to the locking members (402) and the movable stop blocks (301) in the first and second movable guide assemblies.

6. The fixture according to claim 5, characterized in that: The fixed limiting member (501) corresponding to the locking member (402) is in a semi-cylindrical structure, that is, a semi-cylindrical limiting member (501).

7. The fixture according to claim 6, characterized in that: At least three semi-cylindrical limiting members (501) are provided and are evenly arranged.

8. The fixture according to claim 5, characterized in that: The fixed limiting member (302) corresponding to the movable stop block (301) is in an L-shaped structure, i.e., an L limiting member (302).

9. The fixture according to claim 5, characterized in that: At least two L-limiting members (302) are provided.

10. A welding device, comprising a workbench, characterized in that: The workbench is connected to a fixture for welding a battery core as described in any one of claims 1 to 9.

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