CN117123982A

CN117123982A - Clamp, welding equipment and clamp application method

Info

Publication number: CN117123982A
Application number: CN202311399403.3A
Authority: CN
Inventors: 王文冲; 肖俊; 邱真力
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2023-11-28
Anticipated expiration: 2043-10-26
Also published as: CN117123982B

Abstract

The application is suitable for the technical field of welding equipment, and provides a clamp, welding equipment and a clamp application method; the fixture comprises: a base; the two side pressure modules are oppositely arranged on the base at intervals; the two end pressure assemblies are oppositely arranged on the base at intervals; the two side pressure modules and the two end pressure assemblies enclose a welding cavity; welding equipment, including clamps; the clamp application method comprises the following steps: placing the battery module into a welding cavity; controlling the end pressing assembly to press the end plate on the battery module; the side pressure module is controlled to press the side plate to the battery module; welding the end plate and the side plate; the clamp provided by the embodiment of the application can adjust the moving distance of the side plate or the end plate according to different sizes of the battery module, thereby improving the compatibility and the adaptability of the clamp.

Description

Clamp, welding equipment and clamp application method

Technical Field

The application relates to the technical field of welding equipment, in particular to a clamp, welding equipment and a clamp application method.

Background

The battery module production has a procedure of welding the end plate and the side plate of the battery module. Most of welding clamps in the prior art are side clamping type clamps, the clamps are close to the battery module along edges of the battery module in an inclined pushing clamping mode so as to clamp adjacent end plates and side plates at the same time, and the clamps are limited in the inclined pushing clamping mode, so that only the battery module with fixed length-width ratio can be clamped, compatibility and adaptability are poor, and space requirements are also large.

Disclosure of Invention

The application provides a clamp, welding equipment and a clamp application method, which at least solve the problem of poor compatibility of the existing inclined pushing type battery module clamp.

The embodiment of the application provides a clamp for clamping a battery module, which comprises:

a base;

the two side pressure modules are oppositely arranged on the base at intervals;

the two end pressure assemblies are oppositely arranged on the base at intervals;

the two side pressure modules and the two end pressure components enclose a welding cavity.

In the technical scheme of the embodiment, two opposite side pressure modules are arranged at intervals so as to realize the clamping of the side plates, reduce the number of side pressure structures and reduce the space requirement of the clamp; through making the side pressure module only press the curb plate from battery module's side direction, make the end press assembly only press the end plate from battery module's terminal surface direction, make the curb plate press hold and the end plate press hold the action independent respectively to make the clamp can be according to battery module's different size adjustment curb plate or end plate's travel distance, thereby improve the compatibility and the adaptability of clamp, also reduced the debugging degree of difficulty of welding the room.

In one embodiment, the side pressing module includes a first side pressing assembly for fixing the side plate and pressing the side plate to the battery module in a first direction.

In the technical scheme of the embodiment, the side plate is driven to move along the first direction and is pressed and held on the side surface of the battery module by the first side pressing assembly, so that the side plate is fixed on the side surface of the battery module, and the side plate and the end plate are convenient to weld.

In an embodiment, the first side pressing assembly comprises a first side pressing base arranged on the base and a first side pressing piece arranged on the first side pressing base in a sliding mode, and the first side pressing piece can move along a first direction.

In the technical scheme of the embodiment, a fixed foundation is provided for the first side pressing piece and other structures of the first side pressing assembly by arranging the first side pressing base; the side plate is obtained and fixed through the first side pressing piece and is driven to be close to the battery module along the first direction, so that the side plate is pressed and held on the battery module.

In one embodiment, the first side pressing assembly further comprises a first side pressing driving piece arranged on the first side pressing base, and the first side pressing driving piece is connected with the first side pressing piece and used for driving the first side pressing piece to move along the first direction.

In the technical scheme of the embodiment, the first side pressing piece is driven to move through the first side pressing driving piece, so that the first side pressing piece can provide enough force to press the side plate on the battery module.

In one embodiment, the first side pressing assembly further comprises a pressing piece slidably connected to the first side pressing base, the pressing piece being capable of moving in the second direction;

the second direction and the first direction form an included angle.

In the technical scheme of the embodiment, the pressing piece is arranged, so that the first side pressing component can be pressed and held on the pole column of the battery module through the pressing piece, the position of the battery module is fixed, the movement of the battery module is reduced, and the follow-up operation is facilitated.

In one embodiment, the first side pressing assembly further comprises a pressing driving member disposed on the first side pressing base, and the pressing driving member is connected to the pressing member and is used for driving the pressing member to move along the second direction.

In the technical scheme of the embodiment, the propping piece is driven to move by the propping driving piece, so that the propping piece can provide enough force to press the battery module, the position of the battery module is fixed, and the movement of the battery module is reduced.

In an embodiment, the side pressure module further comprises a second side pressure assembly and a third side pressure assembly which are arranged on the base, and the second side pressure assembly and the third side pressure assembly are respectively arranged on two opposite sides of the first side pressure assembly;

the second side pressure assembly can be propped against the side plate and enable the side plate to move along a third direction so as to press the side plate to the third side pressure assembly;

The third direction is perpendicular to the first direction.

In the technical scheme of this embodiment, provided second side pressure subassembly and third side pressure subassembly, side pressure module accessible second side pressure subassembly and third side pressure subassembly are adjusted the curb plate and are followed battery module length direction's position to make the curb plate along battery module length direction's both ends can be aligned with two end plates respectively, the welding of being convenient for.

In an embodiment, the second side pressing assembly includes a second side pressing base disposed on the base and a second side pressing member slidably disposed on the second side pressing base, and the second side pressing member is capable of moving along a third direction.

In the technical scheme of the embodiment, a fixed foundation is provided for the second side pressing piece and other structures of the second side pressing assembly by arranging the second side pressing base; the side plate is propped against by the second side pressing piece and is driven to move along the third direction, so that the position of the side plate in the length direction of the battery module is adjusted, and the side plate can be aligned with the end plate along the length direction of the battery module.

In an embodiment, the second side pressing assembly further comprises a second side pressing driving piece arranged on the second side pressing base, and the second side pressing driving piece is connected with the second side pressing piece and used for driving the second side pressing piece to move along the third direction.

In the technical scheme of the embodiment, the second side pressing piece is driven to move through the second side pressing piece, so that the second side pressing piece can push the side plate to move along the third direction, and the position of the side plate along the length direction of the battery module is adjusted.

In an embodiment, the second side pressing assembly further includes a first pushing member slidably connected to the second side pressing base, and the first pushing member is capable of moving in the first direction and bending the side plate.

In the technical scheme of the embodiment, the side plate is pushed to be bent along the first direction by the first pushing piece so as to form the wrapping edge, and the formed wrapping edge can be opposite to the end plate so as to facilitate the wrapping edge welding.

In an embodiment, the second side pressing assembly further includes a first pushing driving member disposed on the second side pressing base, and the first pushing driving member is connected to the first pushing member and is used for driving the first pushing member to move along the first direction.

In the technical scheme of the embodiment, the first pushing and pressing piece is driven to move through the first pushing and pressing driving piece, so that the first pushing and pressing piece can push the side plate to bend along the first direction, and the side plate can form a wrapping edge at the end plate conveniently.

In an embodiment, the third side pressing assembly includes a third side pressing base disposed on the base and a third side pressing member disposed on the third side pressing base, and the third side pressing member is used for abutting against the side plate.

In the technical scheme of the embodiment, a fixed foundation is provided for the third side pressing piece and other structures of the third side pressing component through the third side pressing base; the displacement of the side plate is restricted by the third side press member so that the side plate can be aligned with the end plate in the length direction of the battery module.

In an embodiment, the third pressing assembly further includes a second pressing member slidably connected to the third pressing base, and the second pressing member is capable of moving in the first direction and bending the side plate.

In the technical scheme of the embodiment, the second pushing piece pushes the side plate to bend along the first direction so as to form the wrapping edge, and the formed wrapping edge can be opposite to the end plate so as to facilitate the welding of the wrapping edge.

In an embodiment, the third pressing assembly further includes a second pressing driving member disposed on the third pressing base, and the second pressing driving member is connected to the second pressing member and is used for driving the second pressing member to move along the first direction.

In the technical scheme of the embodiment, the second pushing and pressing driving piece drives the second pushing and pressing piece to move, so that the second pushing and pressing piece can push the side plate to bend along the first direction, and the side plate can form a wrapping edge at the end plate conveniently.

In one embodiment, the end press assembly includes an end press base disposed on the base and a first end press disposed on the end press base, the first end press being movable in a third direction.

In the technical scheme of the embodiment, a fixed foundation is provided for the first end pressing piece and other structures of the end pressing assembly by arranging the end pressing base; the first end pressing piece drives the end plate to move so that the end plate can be pressed and held on the battery module, and the end plate can be retracted relative to the battery module.

In one embodiment, the end press assembly further comprises a hold down member disposed on the end press base, the hold down member being movable in the second direction.

In the technical scheme of the embodiment, the pressing piece drives the end plate to move along the height direction of the battery module, so that the position of the end plate in the height direction of the battery module is adjusted, and the end plate can be aligned with the battery module.

In one embodiment, the end pressing assembly further comprises a pressing driving piece arranged on the end pressing base, wherein the pressing driving piece is connected with the first end pressing piece and used for driving the first end pressing piece to move along a third direction.

In the technical scheme of the embodiment, the pushing piece is driven to move by the pushing driving piece, so that the pushing piece can push the end plate to move, and the position of the end plate is adjusted.

In one embodiment, the end press assembly further comprises a second end press slidably disposed on the end press base, the second end press being movable in a third direction.

In the technical scheme of the embodiment, the second end pressing piece is arranged and can be close to the end plate along the third direction, so that the second end pressing piece can be pressed at the intersection of the end plate and the wrapping edge to play a role in assisting subsequent welding.

In one embodiment, the end pressing assembly further comprises an end pressing driving member arranged on the base, and the end pressing driving member is connected with the second end pressing member and used for driving the second end pressing member to move along the third direction.

In the technical scheme of the embodiment, the second end pressing piece is driven to move by the end pressing driving piece, so that the second end pressing piece can be pressed on the end plate at the intersection of the end plate and the edge covering to assist welding.

In an embodiment, the fixture further comprises a moving component arranged on the base, and the moving component is used for driving at least one of the two end pressing components to move along a third direction.

In the technical scheme of the embodiment, the moving assembly is arranged on the base to drive the end pressing assembly to move, so that the first end pressing piece can drive the end plate to move close to the battery module and press the end plate on the battery module; the moving assembly can drive the two end pressing assemblies to move, and at the moment, the two end pressing assemblies can move along the direction close to the battery module so as to press and hold the end plate on the battery module; the moving assembly can also drive only one end pressing assembly to move, and the other end pressing assembly which does not move is used as a position reference at the moment so as to limit the position of the battery module.

In an embodiment, the fixture further comprises a supporting seat assembly arranged on the base, and the supporting seat assembly is used for bearing the battery module;

the supporting seat component is arranged between the two side pressure modules, and the supporting seat component is also arranged between the two end pressure components; the supporting seat assembly, the two side pressure modules and the two end pressure assemblies enclose a welding cavity.

In the technical scheme of this embodiment, set up the supporting seat subassembly and bear the weight of battery module to make battery module need not to place on the base, be convenient for set up different supporting seat subassemblies according to battery module's different model, in order to improve the compatibility and the suitability of anchor clamps.

In an embodiment, the supporting seat assembly comprises a bracket arranged on the base and a supporting plate, and the supporting plate is detachably connected to the bracket.

In the technical scheme of the embodiment, the supporting plate is detachably connected to the bracket, and when the model of the battery module needs to be replaced, the supporting plate corresponding to the model of the battery module only needs to be replaced, so that the operation process is simplified, and the compatibility and the suitability of the clamp are further improved.

The embodiment of the application also provides welding equipment, which comprises the clamp.

In one embodiment, the welding device further comprises a material moving module and a material feeding module;

The material moving module is used for placing the battery module into the welding cavity or taking out the battery module from the welding cavity;

the feeding module is used for receiving the battery module conveyed by the material moving module.

In the technical scheme of this embodiment, will wait welded battery module to put into the welding chamber through moving the material module to take out the battery module that will weld the completion and place in the pay-off module from the welding room through moving the material module after the welding is finished, so that pay-off module carries the battery module after the welding is accomplished to other processes, this embodiment has improved the degree of automation in the battery module welding process, has improved welding efficiency.

The embodiment of the application also provides a clamp application method, an application clamp or welding equipment;

the clamp application method comprises the following steps:

placing the battery module into a welding cavity;

controlling the end pressing assembly to press the end plate on the battery module;

the side pressure module is controlled to press the side plate to the battery module;

and welding the end plates and the side plates.

In one embodiment, before the side pressure module is controlled to press the side plate to the battery module, the jig application method further includes:

and the side pressure control module shapes the side plates and forms wrapping edges.

In the technical scheme of this embodiment, control side pressure module is plastic and is formed the bordure to the curb plate to the welding of borduring improves the stability of curb plate and end plate welded part.

In one embodiment, after the control side pressure module presses the side plate to the battery module, the jig application method further includes:

the end plate is far away from the battery module by controlling the end pressing assembly.

In the technical scheme of this embodiment, after the curb plate forms to bordure and hold in battery module, make the end plate keep away from battery module to make the end plate can support to hold in the bordure of curb plate, thereby improve the curb plate and the end plate welding in-process appear the welding that the circumstances such as perk led to is insecure, improved the stability of curb plate and end plate welded part.

In one embodiment, controlling the side pressure module to press the side plate to the battery module includes:

controlling the first side pressing assembly of the side pressing module to act so that the side plate is pressed and held on the battery module along the first direction;

controlling the first side pressing assembly of the side pressing module to act, and enabling the top pressing driving piece of the first side pressing assembly to be pressed and held on the battery module along the second direction;

and controlling the second side pressure assembly of the side pressure module to act so that the side plate is pressed against the third side pressure assembly along the third direction.

In the technical solution of this embodiment, a method of adjusting a side plate of a side pressure module in a length direction of a battery module is provided so that the side plate can be aligned with an end plate.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

fig. 1 is a schematic perspective view of a fixture according to some embodiments of the present application.

Fig. 2 is a schematic perspective view of a first side pressing assembly according to some embodiments of the present application.

Fig. 3 is a schematic perspective view of a second side pressure assembly according to some embodiments of the present application.

Fig. 4 is a schematic perspective view of a third side pressure assembly according to some embodiments of the present application.

Fig. 5 is a schematic perspective view of an end pressing assembly and a moving assembly according to some embodiments of the present application.

Fig. 6 is a schematic perspective view of an end press assembly according to some embodiments of the present application.

Fig. 7 is a schematic perspective view of a support base assembly according to some embodiments of the present application.

Fig. 8 is a flowchart illustrating a method for applying a jig according to some embodiments of the present application.

Fig. 9 is a flowchart of a method for applying a clamp according to another embodiment of the application.

Fig. 10 is a flowchart illustrating a specific method for pressing a side plate to a battery module by a side pressure module in a clamp application method according to some embodiments of the present application.

The meaning of the labels in the figures is:

100. a clamp;

10. a base;

20. a side pressure module;

21. a first side pressure assembly; 211. a first side pressure base; 212. a first side pressing member; 213. a first side pressure driving member; 214. a pressing piece; 215. a pressing driving piece;

22. a second side pressure assembly; 221. a second side pressure base; 222. a second side pressing member; 223. a second side pressure driving member; 224. a first pushing member; 225. a first push driving member;

23. a third side pressure assembly; 231. a third pressure base; 232. a second pushing member; 233. a second push driving member; 234. a third side pressing member; 235. a third side pressure driving member;

30. an end pressure assembly; 31. pressing the base; 32. a first end press; 33. a pressing piece; 34. pressing down the driving piece; 35. a second end pressing piece; 36. an end pressure driving member;

40. A welding cavity;

50. a moving assembly;

60. a support base assembly; 61. a bracket; 62. and a support plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings, i.e., embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements in question must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting of the patent. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless explicitly defined otherwise, for example.

It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

In the process of producing the power battery, there is a process of welding the end plate and the side plate of the battery module. Most of welding clamps in the prior art are side clamping type clamps, the clamps are close to the battery module along the edges of the battery module in an inclined pushing clamping mode, adjacent end plates and side plates are clamped at the same time, and inclined pushing movement tracks of the clamps pass through the edges of the battery module and meet the edges of the battery module, so that the inclined pushing resultant force cannot lead to the deflection of the battery module. The side plates and the end plates of the battery module are required to be pressed in the battery module horizontally or vertically, the battery module is limited by the inclined pushing clamping mode and the inclined pushing moving track, and the four inclined pushing clamps need to move synchronously so that the stress of the side plates and the end plates is stable and no skew occurs, so that the inclined pushing clamps can only clamp the battery module with a fixed length-width ratio, the compatibility and the adaptability are poor, and the difficulty of debugging the clamps is also high.

Meanwhile, the inclined pushing tracks are not parallel to the length and the width of the battery module, so that the requirement on space is large, a large number of gaps exist between the inclined pushing tracks, and the space utilization rate is low.

In order to solve the above problems and reduce the space requirement of the clamp, in the embodiment of the application, two side pressure modules are arranged on two sides of the welding cavity relatively, so that the side pressure modules only press the side plates, thereby enabling the side plates to be close to the battery module and pressed on the battery module, enabling the end pressure component only press the end plates, thereby enabling the end plates to be close to the battery module and pressed on the battery module.

Meanwhile, as the end pressing component and the side pressing module independently act, the position requirements on the end pressing component and the side pressing module are reduced, and the end pressing component and the side pressing module can be compactly arranged on the periphery of the welding cavity, so that the space between the end pressing component and the side pressing module is reduced, the space requirement is reduced, and the space utilization rate is improved.

The clamp disclosed by the embodiment of the application can be used for clamping various battery modules with different specifications and different purposes, and the battery modules with different purposes can be used for power utilization devices using batteries as power sources or various energy storage systems using the batteries as energy storage elements. The power device may be, but is not limited to, a cell phone, tablet, notebook computer, electric toy, electric tool, battery car, electric car, ship, spacecraft, etc. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

In order to describe the technical scheme of the application, the following description is made with reference to specific drawings and embodiments.

Referring to fig. 1, an embodiment of the first aspect of the present application provides a fixture 100, where the fixture 100 includes a base 10, two side pressure modules 20, and two end pressure assemblies 30, and the two side pressure modules 20 and the two end pressure assemblies 30 enclose a welding cavity 40.

The base 10 is used for providing a fixed foundation for the side pressure module 20 and the end pressure assembly 30, and the base 10 can also be used for bearing the battery module; the base 10 may be a flat plate-like member, or may be a frame-like or other shape member; the material of the base 10 may be metal, plastic, or a composite material.

The two side pressure modules 20 are oppositely arranged on the base 10 at intervals, and the side pressure modules 20 are used for fixing side plates and pressing the side plates on the battery module.

The two end pressing assemblies 30 are oppositely and alternately arranged on the base 10, and the end pressing assemblies 30 are used for fixing end plates and pressing the end plates on the battery module.

The two side pressure modules 20 and the two end pressure assemblies 30 enclose a welding cavity 40, and the welding cavity 40 is used for accommodating a battery module to be welded; when the battery module is accommodated in the welding cavity 40, the two end pressing assemblies 30 are respectively opposite to the opposite ends of the battery module at intervals, and the two side pressing modules 20 are respectively opposite to the opposite sides of the battery module at intervals; when the battery module is accommodated in the welding cavity 40, the electrode posts of the battery cells in the battery module face upwards, and the upper part is the direction deviating from the base 10.

The side pressure module 20 can secure the side plates, for example, the side pressure module 20 may include jaws, suction cups, or other securing members to secure the side plates; the side pressure module 20 can also drive the side plate to move in a direction approaching the battery module, for example, the side pressure module 20 can include a cylinder, a hydraulic cylinder, an electric telescopic rod or other movable members to drive the fixed members to move, so as to drive the side plate to approach or separate from the battery module.

Because the side pressure module 20 is only used for pressing the side plate against the battery module, the side pressure module 20 can be opposite to the side surface of the battery module, and the side plate is parallel to the corresponding side surface of the battery module, and the moving direction of the side plate is perpendicular to the corresponding side surface of the battery module, compared with the inclined pushing type clamp arranged at the edge of the battery module, the side pressure module 20 in the embodiment can reduce the space requirement of the clamp 100.

The side pressure module 20 can press the side plates on the battery modules with different sizes by adjusting the feeding amount of other movable components such as an air cylinder, a hydraulic cylinder, an electric telescopic rod and the like so as to adapt to the different sizes of the different battery modules and improve the compatibility and the adaptability of the clamp 100.

The end press assembly 30 can secure the end plates, for example, the end press assembly 30 can include jaws, suction cups, or other securing members to secure the side plates; the end press assembly 30 may also be capable of driving the end plate to move in a direction approaching the battery module, for example, the end press assembly 30 may include a cylinder, a hydraulic cylinder, an electric telescopic rod, or other movable members to drive the fixed members to move, thereby driving the end plate to approach or separate from the battery module.

Because the end pressing assembly 30 is only used for pressing the end plate on the battery module, the end pressing assembly 30 can be opposite to the end surface of the battery module, and the end plate is parallel to the corresponding end surface of the battery module, and the moving direction of the end plate is perpendicular to the corresponding end surface of the battery module, compared with an inclined pushing type clamp arranged at the edge of the battery module, the end pressing assembly 30 in the embodiment can reduce the space requirement of the clamp 100.

The end press assembly 30 can press the end plates on the battery modules with different sizes by adjusting the feeding amount of other movable components such as an air cylinder, a hydraulic cylinder, an electric telescopic rod and the like so as to adapt to the different sizes of the different battery modules and improve the compatibility and the adaptability of the clamp 100.

It will be appreciated that the feeding amounts of the side press module 20 and the end press assembly 30 may be manually adjusted to press the side plates and the end plates to the battery module, and the side press module 20 and the end press assembly 30 may also be controlled by the control unit to press the side plates and the end plates to the battery module.

In fig. 1, the direction of the X axis is the direction in which the end plate moves, the direction of the Y axis is the direction in which the side plates move, when the battery module is in the welding cavity 40, the two side plates are respectively close to the battery module along the direction of the Y axis and are pressed on the opposite sides of the battery module, and the two end plates are respectively close to the battery module along the direction of the X axis and are pressed on the opposite end faces of the battery module.

The side face of the battery module and the end face of the battery module are arranged on the periphery of the battery module, the two side faces of the battery module are arranged oppositely, and the two end faces of the battery module are arranged oppositely; the top surface of the battery module is one surface of the battery module with a pole, and the top surface of the battery module is connected with the end surface and the side surface of the battery module.

When the fixture 100 provided in this embodiment is used, after the battery module is placed in the welding cavity 40, the side pressure module 20 and the end pressure assembly 30 can be controlled to act sequentially, so that the side plates and the end plates are pressed on the battery module for welding.

In this embodiment, two opposite side pressure modules 20 are disposed at intervals to realize the clamping of the side plates, so that the number of side pressure structures is reduced to reduce the space requirement of the fixture 100; through making side pressure module 20 only press the curb plate from battery module's side direction, make end pressure subassembly 30 only press the end plate from battery module's terminal surface direction, make the curb plate press hold and the end plate press hold the action independent respectively to make anchor clamps 100 can be according to battery module's different size adjustment curb plate or end plate's travel distance, thereby improve anchor clamps 100's compatibility and adaptability, also reduced the debugging degree of difficulty of welding the room.

Referring to fig. 2, in one embodiment, the side pressure module 20 includes a first side pressure assembly 21 for fixing the side plate and pressing the side plate to the battery module in a first direction.

The first side pressing assembly 21 can fix the side plate and drive the side plate to be pressed on the battery module.

In some embodiments, the first side press assembly 21 may include a claw, suction cup, or other securing member to secure the side plates.

In some embodiments, the first side pressing assembly 21 may further include an air cylinder, a hydraulic cylinder, an electric telescopic rod or other movable member to drive the fixed member to move, thereby driving the side plate to approach or separate from the battery module.

In this embodiment, the first side pressing component 21 drives the side plate to move along the first direction and press the side plate against the side surface of the battery module, so as to fix the side plate on the side surface of the battery module, thereby facilitating the welding of the side plate and the end plate.

Referring to fig. 1 and 2, in some embodiments, the first side pressing assembly 21 includes a first side pressing base 211 provided on the base 10 and a first side pressing piece 212 slidably provided on the first side pressing base 211, the first side pressing piece 212 being movable in a first direction.

The first side pressing base 211 refers to a member of the first side pressing assembly 21 for providing a fixed base for the first side pressing member 212 and other structures of the first side pressing assembly 21, and the first side pressing base 211 is disposed on the base 10; the first side pressure base 211 may have a plate shape, a square table shape, or other shapes; the first lateral pressing base 211 may be made of metal or other materials.

In some embodiments, the first lateral pressure base 211 may be fixedly attached to the base 10 by bolts, snaps, or other structures, and may be removed from the base 10 or replaced with an installation location as desired; in other embodiments, the first lateral pressure base 211 may also be provided on the base 10 by a rodless cylinder or other movable mechanism to facilitate adjusting the position of the first lateral pressure base 211.

The first side press 212 is used to secure and hold the side plates, for example, a clamping jaw, suction cup or other securing structure may be provided on the first side press 212 to secure the side plates.

The first side pressing piece 212 is slidably disposed on the first side pressing base 211 and can move along a first direction, and the first side pressing piece 212 slides relative to the first side pressing base 211 to drive the side plate to slide so as to press the side plate on the battery module along the first direction; the first side follower 212 may be slidably coupled via a slider runner, a slide rail, or other slidable structure.

Referring to fig. 1 and 2, the first direction is the direction in which the Y axis is located in the drawing, and the direction is also the width direction of the battery module.

Referring to fig. 1 and 2, a worker can fix the side plate to the first side pressing member 212 and control the first side pressing member 212 to move in the first direction such that the first side pressing member 212 can press the side plate to the battery module; the worker can also adjust the position of the first lateral pressure base 211 to adjust the position of the first lateral pressure assembly 21 relative to the battery module to accommodate battery modules of different specifications and sizes.

The present embodiment provides a fixed basis for the first side press 212 and other structures of the first side press assembly 21 by providing the first side press base 211; the side plate is acquired and fixed through the first side pressing piece 212, and the side plate is driven to approach the battery module along the first direction so as to press the side plate on the battery module.

Referring to fig. 2, in some embodiments, the first side pressure assembly 21 further includes a first side pressure driving member 213 disposed on the first side pressure base 211, the first side pressure driving member 213 being coupled to the first side pressure member 212 and configured to drive the first side pressure member 212 to move in the first direction.

The first side pressure driving member 213 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the first side pressure member 212 to move, and the first side pressure driving member 213 may also be a rack and pinion structure matched with a motor, a screw slider mechanism matched with a motor or other mechanical structure to drive the first side pressure member 212 to move.

The operator can manually control the start-stop and telescopic states of the first side pressure driving member 213, and the operator can also control the working state of the first side pressure driving member 213 through the control unit, or can also preset a control program in the control unit to control the working state of the first side pressure driving member 213.

The first side pressing member 212 is driven to move by the first side pressing driving member 213 in this embodiment, so that the first side pressing member 212 can provide enough force to press the side plate against the battery module, and the operation and control are convenient.

Referring to fig. 1 and 2, in some embodiments, the first side pressing assembly 21 further includes a pressing member 214 slidably connected to the first side pressing base 211, the pressing member 214 being capable of moving in the second direction and pressing against the battery module, and the pressing member 214 being used for pressing the battery module against the base 10; the second direction and the first direction form an included angle.

The pressing member 214 is a member of the first side pressing assembly 21 that can move along the second direction toward the battery module and press against the top surface of the pole or the pole of the battery module, so as to increase the friction between the battery module and the base 10, thereby achieving the effect of fixing the position of the battery module and improving the offset of the side plate and the end plate caused by the movement of the battery module.

The pressing member 214 is slidably connected to the first side pressing base 211, for example, the pressing member 214 may be slidably connected through a sliding chute, a sliding shaft rail, or other slidable structure.

The second direction refers to another direction that can form an included angle with the first direction, that is, the second direction is not parallel to the first direction, specifically, the pressing member 214 moves along the second direction to press the top surface of the battery module, so that the second direction at least has a partial movement perpendicular to the top surface of the battery module, so that the pressing member 214 applies a pressing force to the top surface of the battery module, and therefore, an included angle is formed between the second direction and the first direction, so that the second direction has a partial movement perpendicular to the top surface of the battery module. In some embodiments, referring to fig. 1 and 2, the second direction is the direction in which the Z-axis is located, and the direction is also the height direction of the battery module, where the second direction is perpendicular to the first direction.

The pressing member 214 is provided in this embodiment, so that the first side pressing member 21 can be pressed against the pole of the battery module by the pressing member 214 to fix the position of the battery module, reduce the play of the battery module, and facilitate the subsequent operation.

Referring to fig. 2, in some embodiments, the first side pressing assembly 21 further includes a pressing driving member 215 provided on the first side pressing base 211, the pressing driving member 215 being connected to the pressing member 214 and configured to drive the pressing member 214 to move in the second direction.

The pressing driving member 215 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the pressing member 214 to move, or the pressing driving member 215 may be a rack-and-pinion structure matched with a motor, a screw rod sliding block mechanism matched with a motor or other mechanical structures to drive the pressing member 214 to move.

The operator can manually control the start-stop and telescopic states of the top pressure driving member 215, and the operator can also control the working state of the top pressure driving member 215 through the control unit, or can preset a control program in the control unit to control the working state of the top pressure driving member 215.

The pressing member 214 is driven by the pressing driving member 215 to move, so that the pressing member 214 can provide enough force to press the battery module to fix the position of the battery module and reduce the movement of the battery module.

The first side pressing component 21 provided in the embodiment of the application can press the side plate to the battery module and limit the displacement of the battery module when the side pressing module 20 acts, specifically, the first side pressing driving piece 213 can drive the first side pressing piece 212 to move so as to press the side plate to the side surface of the battery module; the pressing driving member 215 can drive the pressing member 214 to move, so that the pressing member 214 is pressed against the top surface of the battery module to limit the displacement of the battery module.

Referring to fig. 1, 3 and 4, in an embodiment, the side pressure module 20 further includes a second side pressure assembly 22 and a third side pressure assembly 23 disposed on the base 10, where the second side pressure assembly 22 and the third side pressure assembly 23 are disposed on opposite sides of the first side pressure assembly 21, respectively; the second side pressing assembly 22 is used for abutting against the side plate and enabling the side plate to move along the third direction so as to press the side plate against the third side pressing assembly 23.

The second side pressure assembly 22 refers to an assembly that drives the side plate to move along the third direction in the side pressure module 20, the third side pressure assembly 23 refers to another assembly that drives the side plate to move along the third direction in the side pressure module 20, and the second side pressure assembly 22 and the third side pressure assembly 23 are used for adjusting the position of the side plate so that two ends of the side plate can be aligned with the end plate.

The third direction is perpendicular to the first direction, referring to fig. 1 and 3, and is the direction in which the X axis is located in the drawing, and the direction is also the length direction of the battery module.

The second side pressure assembly 22 is used to urge the side plates to move in a third direction to adjust the position of the side plates relative to the end plates so that the ends of the side plates can be aligned with the end plates or moved to a desired position.

The second side pressing assembly 22 and the third side pressing assembly 23 are respectively arranged at two opposite sides of the first side pressing assembly 21, namely, the second side pressing assembly 22 and the third side pressing assembly 23 are respectively opposite to two opposite ends of the side plate, and the second side pressing assembly 22 can push the side plate to be pressed against the third side pressing assembly 23 along the third direction; in some embodiments, the third side pressure assembly 23 may also urge the side plates to move in a third direction.

Since the second side pressure assembly 22 and the third side pressure assembly 23 are operated to push the side plates to move in the third direction, the second side pressure assembly 22 and the third side pressure assembly 23 may not have a function of fixing the side plates.

The second side pressure assembly 22 and the third side pressure assembly 23 are disposed on the base 10, and in some embodiments, the second side pressure assembly 22 and the third side pressure assembly 23 may be fixedly connected to the base 10 by a buckle, a bolt or other structures, and the mounting position may be removed or replaced from the base 10 as required, where the second side pressure assembly 22 and the third side pressure assembly 23 further have a member capable of pushing the side plates; in other embodiments, the second side pressure assembly 22 and the third side pressure assembly 23 may also be disposed on the base 10 by an air cylinder or other movable mechanism, so as to adjust the positions of the second side pressure assembly 22 and the third side pressure assembly 23, where the second side pressure assembly 22 and the third side pressure assembly 23 may directly push the side plates to move.

The present embodiment provides a second side pressure assembly 22 and a third side pressure assembly 23, and the side pressure module 20 can adjust the position of the side plate along the length direction of the battery module through the second side pressure assembly 22 and the third side pressure assembly 23, so that the two ends of the side plate along the length direction of the battery module can be aligned with the two end plates respectively, and welding is facilitated.

Referring to fig. 3, in some embodiments, the second side pressing assembly 22 includes a second side pressing base 221 disposed on the base 10 and a second side pressing member 222 slidably disposed on the second side pressing base 221, where the second side pressing member 222 is configured to move the side plate along the third direction.

The second side pressure base 221 refers to a member of the second side pressure assembly 22 for providing a fixed basis for the second side pressure 222 and other structures of the second side pressure assembly 22, and the second side pressure base 221 is provided on the base 10; the second side pressure base 221 may have a plate shape, a square table shape, or other shapes; the material of the second side pressure base 221 may be metal or other materials.

In some embodiments, the second side pressure base 221 may be fixedly connected to the base 10 by bolts, snaps, or other structures, and detached from the base 10 or replaced with an installation location as needed; in other embodiments, the second side pressure base 221 may also be provided on the base 10 by a rodless cylinder or other movable mechanism to facilitate adjusting the position of the second side pressure base 221.

The second side pressing piece 222 is used for pushing the side plate and moving the side plate along the third direction, so the second side pressing piece 222 can be plate-shaped, columnar or other shapes; further, since the thickness of the side plate is smaller, the shape of the second side pressing member 222 may be cylindrical, so that the second side pressing member 222 pushes the side plate to move.

The second side pressing piece 222 is slidably disposed on the second side pressing base 221 and can move along the third direction, and the second side pressing piece 222 slides relative to the second side pressing base 221 to drive the side plate to slide, so as to press the side plate on the third side pressing assembly 23 along the third direction; the second side follower 222 may be slidably coupled via a slider chute, a slide rail, or other slidable structure.

The present embodiment provides a fixed basis for the second side pressing piece 222 and other structures of the second side pressing assembly 22 by providing the second side pressing base 221; the second side pressing piece 222 abuts against the side plate and drives the side plate to move along the third direction so as to adjust the position of the side plate in the length direction of the battery module, and the side plate can move to a preset position along the length direction of the battery module. In some embodiments, in the preset position, opposite ends of the side plates are respectively aligned with adjacent end plates; in other embodiments, in the predetermined position, the opposite ends of the side plates extend beyond the end plates, and the length of the side plates extending beyond the end plates is the same.

Referring to fig. 3, in some embodiments, the second side pressing assembly 22 further includes a second side pressing driver 223 provided on the second side pressing base 221, the second side pressing driver 223 being connected to the second side pressing piece 222 and for driving the second side pressing piece 222 to move in the third direction.

The second side pressure driving member 223 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the second side pressure member 222 to move, and the second side pressure driving member 223 may also be a gear rack structure matched with a motor, a screw rod sliding block mechanism matched with a motor or other mechanical structure to drive the second side pressure member 222 to move.

The operator can manually control the start-stop and telescopic states of the second side pressure driving piece 223, and the operator can also control the working state of the second side pressure driving piece 223 through the control unit, or can also preset a control program in the control unit to control the working state of the second side pressure driving piece 223.

The second side pressing member 222 is driven to move by the second side pressing driving member 223 in the present embodiment, so that the second side pressing member 222 can push the side plate to move in the third direction, so as to adjust the position of the side plate in the length direction of the battery module.

Referring to fig. 3, in some embodiments, the second side pressure assembly 22 further includes a first push piece 224 slidably coupled to the second side pressure base 221, the first push piece 224 being capable of moving in a first direction and bending the side plates.

The first pushing member 224 is slidably connected to the second side pressure base 221, for example, the first pushing member 224 may be slidably connected through a sliding chute, a sliding shaft rail, or other slidable structure.

The first pushing member 224 can move along the first direction, and the first pushing member 224 can press the side plate along the first direction and bend the side plate to form a wrapping edge on the side plate, and the wrapping edge can be parallel to the end plate, so that the wrapping edge is welded to the end plate in the welding process, the welding strength is improved, and the stability is increased.

In this embodiment, the first pushing member 224 pushes the side plate to bend along the first direction to form the wrapping edge, and the formed wrapping edge can be opposite to the end plate, so as to facilitate the welding of the wrapping edge.

Referring to fig. 3, in some embodiments, the second side pressure assembly 22 further includes a first push driver 225 disposed on the second side pressure base 221, the first push driver 225 being coupled to the first push member 224 and configured to drive the first push member 224 in a first direction.

The first pushing driving member 225 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the first pushing member 224 to move, and the first pushing driving member 225 may also be a rack and pinion structure matched with a motor, a screw rod sliding block mechanism matched with a motor or other mechanical structure to drive the first pushing member 224 to move.

The operator can manually control the start-stop and telescopic states of the first pushing driving member 225, and the operator can also control the working state of the first pushing driving member 225 through the control unit, or can preset a control program in the control unit to control the working state of the first pushing driving member 225.

Referring to fig. 1 and 4, in an embodiment, the third side pressing assembly 23 includes a third side pressing base 231 disposed on the base 10 and a third side pressing member 234 disposed on the third side pressing base 231, where the third side pressing member 234 is used to abut against the side plate.

The third side pressure base 231 refers to a member of the third side pressure assembly 23 for providing a fixed base for the third side pressure 234 and other structures of the third side pressure assembly 23, and the third side pressure base 231 is provided on the base 10; the third-side pressure base 231 may have a plate shape, a square table shape, or other shapes; the third pressing base 231 may be made of metal or other materials.

In some embodiments, the third side pressure base 231 may be fixedly coupled to the base 10 by bolts, snaps, or other structures, and detached from the base 10 or replaced with a mounting location as desired; in other embodiments, the third pressing base 231 may be provided on the base 10 by a rodless cylinder or other movable mechanism, so as to adjust the position of the third pressing base 231.

The third side pressing piece 234 is provided on the third side pressing base 231; in some embodiments, the third side pressing piece 234 is slidably disposed on the third side pressing base 231, where the third side pressing piece 234 is used to push the side plate and move the side plate along the third direction, the third side pressing piece 234 may be plate-shaped, columnar or other shapes, and the shape of the third side pressing piece 234 is columnar due to the smaller thickness of the side plate, so that the third side pressing piece 234 pushes the side plate to move; in other embodiments, the third side pressing member 234 is fixed to the third side pressing base 231, where the second side pressing member 222 can push the side plate and make the side plate abut against the third side pressing member 234, and when the side plate abuts against the third side pressing member 234, an end of the side plate contacting the third side pressing member 234 is flush with an adjacent end plate, and the third side pressing member 234 may have a plate shape, a column shape, or other shapes.

The present embodiment provides a fixed basis for the third side pressing piece 234 and other structures of the third side pressing assembly 23 by providing the third side pressing base 231; the displacement of the side plates is restricted by the third side pressing members 234 such that the side plates can be moved to a preset position in the length direction of the battery module. In some embodiments, in the preset position, opposite ends of the side plates are respectively aligned with adjacent end plates; in other embodiments, in the predetermined position, the opposite ends of the side plates extend beyond the end plates, and the length of the side plates extending beyond the end plates is the same.

Referring to fig. 4, in some embodiments, the third side pressing piece 234 is slidably disposed on the third side pressing base 231, and the third side pressing assembly 23 further includes a third side pressing driver 235, and the third side pressing driver 235 is connected to the third side pressing piece 234 and is configured to drive the third side pressing piece 234 to move in a third direction.

The third side pressing piece 234 is slidably disposed on the third side pressing base 231, and at this time, the third side pressing piece 234 is used to push the side plate and move the side plate in the third direction, so that an end of the side plate adjacent to the third side pressing piece 234 can be flush with an adjacent end plate.

The third side pressure driving member 235 is configured to drive the third side pressure member 234 to move, the third side pressure driving member 235 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the third side pressure member 234 to move, and the third side pressure driving member 235 may also be a rack and pinion structure matched with a motor, a screw slider mechanism matched with a motor or other mechanical structure to drive the third side pressure member 234 to move.

The operator can manually control the start-stop and telescopic states of the third side pressure driving part 235, and the operator can also control the working state of the third side pressure driving part 235 through the control unit, or can also preset a control program in the control unit to control the working state of the third side pressure driving part 235.

The third side pressing member 234 is driven to move by the third side pressing driving member 235 in the present embodiment, so that the third side pressing member 234 can push the side plates to move in the third direction to adjust the positions of the side plates in the length direction of the battery module.

Referring to fig. 4, in some embodiments, the third side pressure assembly 23 further includes a second pushing piece 232 slidably connected to the third side pressure base 231, the second pushing piece 232 being capable of moving in the first direction and bending the side plates.

The second pushing member 232 is slidably connected to the third pressing base 231, for example, the second pushing member 232 may be slidably connected through a sliding chute, a sliding shaft rail, or other slidable structure.

The second pushing piece 232 can move along the first direction, and the second pushing piece 232 can be pressed on the side plate along the first direction and bent to form a wrapping edge on the side plate, and the wrapping edge can be parallel to the end plate, so that the wrapping edge is welded on the end plate in the welding process, the welding strength is improved, and the stability is improved.

In this embodiment, the second pushing member 232 pushes the side plate to bend along the first direction to form the wrapping edge, and the formed wrapping edge can be opposite to the end plate, so as to facilitate the welding of the wrapping edge.

Referring to fig. 4, in some embodiments, the third pressing assembly 23 further includes a second pressing driver 233 provided on the third pressing base 231, the second pressing driver 233 being connected to the second pressing member 232 and for driving the second pressing member 232 to move in the first direction.

The second pushing driving member 233 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the second pushing member 232 to move, and the second pushing driving member 233 may also be a gear rack structure matched with a motor, a screw rod sliding block mechanism matched with a motor or other mechanical structure to drive the second pushing member 232 to move.

The operator can manually control the start-stop and telescopic states of the second push driving member 233, and the operator can also control the working state of the second push driving member 233 through the control unit, or can also preset a control program in the control unit to control the working state of the second push driving member 233.

Referring to fig. 1, 5 and 6, in one embodiment, the end press assembly 30 includes an end press base 31 provided on the base 10 and a first end press 32 provided on the end press base 31, the first end press 32 being movable in a third direction.

The end pressing base 31 refers to a member of the end pressing assembly 30 for providing a fixed base for the first end pressing piece 32 and other structures of the end pressing assembly 30, and the end pressing base 31 is arranged on the base 10; the shape of the end pressing base 31 may be a plate shape, a square table shape or other shapes; the end pressure base 31 may be made of metal or other materials.

In some embodiments, the end press base 31 may be fixedly attached to the base 10 by bolts, snaps, or other structures, and may be removed from the base 10 or replaced with an installation location as desired; in other embodiments, the end press base 31 may be provided on the base 10 by a rodless cylinder or other movable mechanism to facilitate adjusting the position of the end press base 31.

The first end pressing piece 32 is arranged on the end pressing base 31, and the first end pressing piece 32 can move along a third direction so as to press the end plate on the end surface of the battery module, and the first end pressing piece 32 can also drive the end plate to retract even if the end plate moves away from the battery module; a claw, suction cup or other securing means may be provided on the first end piece 32 to secure the end plate.

In some embodiments, the first end pressing member 32 is slidably connected to the end pressing base 31, where the first end pressing member 32 can move along the third direction relative to the end pressing base 31 to press the end plate against the end surface of the battery module, and the first end pressing member 32 can be slidably connected through a sliding block chute, a sliding shaft rail or other slidable structure; in other embodiments, the end pressing base 31 is slidably connected to the base 10, where the end pressing assembly 30 can move along a third direction relative to the base 10, so that the first end pressing member 32 can press the end plate against the end surface of the battery module, and the end pressing base 31 can be slidably connected through a sliding block chute, a sliding shaft rail or other slidable structure.

The present embodiment provides a fixed basis for the first end press 32 and other structures of the end press assembly 30 by providing an end press base 31; the first end pressing member 32 drives the end plate to move so that the end plate can be pressed against the battery module, and the end plate can be retracted relative to the battery module.

Referring to fig. 4, in some embodiments, the end press assembly 30 further includes a hold down piece 33 provided on the end press base 31, the hold down piece 33 being movable in the second direction.

The hold down piece 33 is slidably coupled to the end press base 31, for example, the hold down piece 33 may be slidably coupled via a slider chute, a slide rail, or other slidable structure.

The lower pressing piece 33 can move along the second direction and prop against the end plate, and the lower pressing piece 33 can push the end plate to synchronously move along the second direction, so that the end plate is flush with the top surface of the battery module, and the effect of correcting the position of the end plate is achieved.

It will be appreciated that when the end plate is level with the top surface of the battery module, the pressing member 33 is also pressed against the top surface of the battery module, and the pressing member 33 can also play a role in fixing the position of the battery module.

In this embodiment, the pressing member 33 drives the end plate to move along the height direction of the battery module, so as to adjust the position of the end plate in the height direction of the battery module, and the end plate can be aligned with the battery module.

Referring to fig. 4, in some embodiments, the end press assembly 30 further includes a hold-down drive 34 disposed on the end press base 31, the hold-down drive 34 being coupled to the first end press 32 and configured to drive the first end press 32 in a third direction.

The pushing driving member 34 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the pushing member 33 to move, or the pushing driving member 34 may be a rack-and-pinion structure matched with a motor, a screw slider mechanism matched with a motor or other mechanical structure to drive the pushing member 33 to move.

The operator can manually control the start-stop and telescopic states of the pressing-down driving member 34, and the operator can also control the working state of the pressing-down driving member 34 through the control unit, or can preset a control program in the control unit to control the working state of the pressing-down driving member 34.

The present embodiment drives the hold-down piece 33 to move by the hold-down driving piece 34, so that the hold-down piece 33 can push the end plate to move to adjust the position of the end plate.

Referring to fig. 4, in one embodiment, the end press assembly 30 further includes a second end press 35 slidably disposed on the end press base 31, the second end press 35 being movable in a third direction.

The second end pressing piece 35 is used for pressing and holding at the intersection of the end plate and the side plate wrapping edge, and the second end pressing piece 35 is used for assisting the welding of the end plate and the side plate wrapping edge, so that the shape of the second end pressing piece 35 can be plate-shaped, columnar or other shapes; for example, the second end pressing member 35 is strip-shaped and has the same length as the dimension of the end plate in the Z-axis direction.

The second end pressing piece 35 is slidably arranged on the end pressing base 31 and can move along a third direction, so that the second end pressing piece 35 can be abutted against the end plate; the second end press 35 may be slidably coupled by a slide runner, a slide rail, or other slidable structure.

The second end pressing piece 35 is arranged in the embodiment, and the second end pressing piece 35 can be close to the end plate along the third direction, so that the second end pressing piece 35 can be pressed at the intersection of the end plate and the wrapping edge, and the effect of assisting subsequent welding is achieved.

Referring to fig. 4, in some embodiments, the end press assembly 30 further includes an end press drive 36 disposed on the base plate, the end press drive 36 being coupled to the second end press 35 and configured to drive movement of the second end press 35 in a third direction.

The end pressure driving member 36 may be a cylinder, a hydraulic cylinder, an electric telescopic rod or other telescopic structure to drive the second end pressing member 35 to move, or the end pressure driving member 36 may be a rack and pinion structure matched with a motor, a screw rod sliding block mechanism matched with a motor or other mechanical structure to drive the second end pressing member 35 to move.

The operator can manually control the start-stop and telescopic states of the end pressure driving member 36, and the operator can also control the working state of the end pressure driving member 36 through the control unit, or can preset a control program in the control unit to control the working state of the end pressure driving member 36.

The second end pressing member 35 is driven by the end pressing driving member 36 to move, so that the second end pressing member 35 can be pressed against the end plate at the intersection of the end plate and the edge covering, thereby assisting welding.

Referring to fig. 1 and 4, in some embodiments, the fixture 100 further includes a moving assembly 50 disposed on the base 10, where the moving assembly 50 is configured to move at least one of the two end press assemblies 30 along a third direction.

The movement assembly 50 may include a slide rail, chute, or other structure to enable movement of the end press assembly 30 relative to the base 10; the movement assembly 50 may also include an air cylinder, hydraulic cylinder, rodless cylinder, or other driving member to drive the movement of the end press assembly 30 relative to the base 10.

The operator can manually control the start and stop states of the moving assembly 50, and the operator can control the working state of the moving assembly 50 through the control unit, or can preset a control program in the manufacturing unit to control the working state of the moving assembly 50.

In some embodiments, the moving assembly 50 is connected to both end-pressing assemblies 30, and the moving assembly 50 can drive the two end-pressing assemblies 30 to approach or separate from each other, so as to drive the end plate to abut against the battery module or drive the end plate to retract; in other embodiments, the moving assembly 50 is connected to only one of the two end press assemblies 30, and the other end press assembly 30 is fixed to the base 10 and serves as a reference to limit the position of the battery module, for example, the battery module can be abutted against the end plate of the fixed end press assembly 30, and the battery module cannot be displaced when the movable end press assembly 30 presses the end plate against the battery module.

In this embodiment, the moving component 50 is disposed on the base 10 to drive the end pressing component 30 to move, so that the first end pressing component 32 can drive the end plate to move close to the battery module and press the end plate to the battery module; the moving assembly 50 can drive the two end pressing assemblies 30 to move, and at the moment, the two end pressing assemblies 30 can move along the direction close to the battery module so as to press and hold the end plate on the battery module; the moving assembly 50 may also drive only one end pressing assembly 30 to move, and the other end pressing assembly 30 which does not move is used as a position reference to limit the position of the battery module.

Referring to fig. 1 and 7, in an embodiment, the fixture 100 further includes a support base assembly 60 disposed on the base 10, and the support base assembly 60 is used for carrying the battery module.

The supporting seat assembly 60 is arranged on the base 10, and the supporting seat assembly 60 is used for bearing the battery module; the shape of the supporting seat assembly 60 may be a plate shape, a square table shape or other shapes; the material of the supporting seat assembly 60 may be metal or other materials.

The support base assembly 60 may be fixedly attached to the base 10 by bolts, snaps, or other structures, and removed from the base 10 or replaced with an installed position as desired; the support base assembly 60 may also be provided on the base 10 by a rodless cylinder or other movable mechanism to facilitate adjustment of the position of the support base assembly 60.

The supporting seat assembly 60 is arranged between the two side pressure modules, the supporting seat assembly 60 is further arranged between the two side pressure modules 30, the supporting seat assembly 60, the two side pressure modules 20 and the two side pressure modules 30 enclose a welding cavity 40, when the battery module is arranged in the welding cavity 40, the battery module is arranged on the supporting seat assembly 60, and the two side pressure modules 30 and the two side pressure modules 20 are arranged on the periphery of the battery module respectively so as to respectively fix the end plate and the side plate.

The embodiment sets up the supporting seat assembly 60 and bears the battery module to make the battery module need not to place on the base 10, be convenient for set up different supporting seat assemblies 60 according to the different model of battery module, in order to improve the compatibility and the suitability of anchor clamps 100.

Referring to fig. 7, in some embodiments, the support base assembly 60 includes a bracket 61 provided on the base 10 and a support plate 62, the support plate 62 being detachably connected to the bracket 61.

The bracket 61 is arranged on the base 10 and is used for supporting the supporting plate 62; in some embodiments, the bracket 61 may be fixedly attached to the base 10 by welding, gluing, or other means; in other embodiments, the bracket 61 may be detachably connected to the base 10 by bolts, snaps, or other structures to facilitate adjusting the position of the bracket 61 relative to the base 10 and also facilitate the disassembly and maintenance of the bracket 61.

The support plates 62 are detachably connected to the support frame 61, for example, the support plates 62 may be detachably connected to the support frame 61 by a buckle, a bolt, a magnet, or other structures, so that a worker can replace the corresponding support plates 62 according to different specifications of battery modules.

In this embodiment, the support plate 62 is detachably connected to the bracket 61, and when the battery module model needs to be replaced, only the support plate 62 corresponding to the battery module model needs to be replaced, so that the operation process is simplified, and the compatibility and the adaptability of the fixture 100 are further improved.

In some embodiments, the fixture 100 includes a supporting seat assembly 60, two opposite sides of the supporting seat assembly 60 are respectively provided with a second side pressing assembly 22, a first side pressing assembly 21 and a third side pressing assembly 23 in sequence, wherein two second side pressing assemblies 22, two first side pressing assemblies 21 and two third side pressing assemblies 23 are respectively provided with an end pressing assembly 30 in opposite directions, and two other sides of the supporting seat assembly 60 are respectively provided with an end pressing assembly 30.

The operation process of the fixture 100 is as follows: the battery module is placed on the support plate 62, and then one of the two end press assemblies 30 is controlled to press the end plate against the battery module by the moving assembly 50, while the battery module is also pressed against the end plate of the other end press assembly 30; then controlling the side pressure module 20 to shape the side plates and form a wrapping edge; the side pressure modules 20 on both sides of the battery module are operated simultaneously to press the side plates against the sides of the battery module; and then controlling the end press assembly 30 to move the end plate away from the battery module; and then welding the end plate and the side plate.

An embodiment of a second aspect of the present application provides a welding apparatus comprising the clip 100 provided by the embodiment of the first aspect, the welding apparatus further comprising a medical module and a feeding module.

The material moving module is used for placing the battery module into the welding cavity 40 or taking out the battery module from the welding cavity 40, and the material moving module can be a manipulator, a clamping jaw or other components capable of grabbing and placing the battery module so as to place the battery module into the welding cavity 40 or transfer the battery module from the welding cavity 40 to the feeding module.

The feeding module is used for receiving the battery module conveyed by the material moving module, and the feeding module can be a conveying belt, a feeding trolley or other components capable of conveying the battery module so as to receive the battery module conveyed by the material moving module and convey the battery module to other positions.

The material moving module can be arranged at the side of the clamp 100 or can be directly arranged on the base 10 so as to be convenient for grabbing the battery module; the feeding module can also be arranged at the side of the material moving module, and can also be directly arranged on the base 10, so that the battery module conveyed by the material moving module can be conveniently obtained.

In the embodiment, the to-be-welded battery module is placed in the welding cavity 40 through the material moving module, and the welded battery module is taken out of the welding room through the material moving module after welding is finished and placed in the feeding module, so that the feeding module conveys the welded battery module to other working procedures.

In some embodiments, the material moving module is a mechanical arm, and besides the material moving module can grasp the battery module, the material moving module can fix the position of the battery module through pressing a pole of the battery module, and the material moving module also has a beat-in function, and the beat-in function can correct the position of the battery module so as to reduce the occurrence of the offset condition of the battery module.

Embodiments of a third aspect of the present application provide a jig application method applied to the jig 100 provided by the embodiments of the first aspect, or the welding apparatus provided by the embodiments of the second aspect.

Referring to fig. 8, the jig application method specifically includes:

s710: the battery module is placed in the welding chamber 40.

This step is used to place the battery on the support plate 62, where the battery module is placed between the two side pressure modules 20 and the two end pressure assemblies 30, so that the side pressure modules 20 and the end pressure assemblies 30 perform end pressure and side pressure operations on the battery module in the subsequent steps.

S720: the end plate is pressed against the battery module by the control end pressing assembly 30.

In this step, one of the two end press assemblies 30 is controlled to press the end plate against the battery module by the moving assembly 50, while the battery module is also pressed against the end plate of the other end press assembly 30.

The specific action process of the end pressing assembly 30 for pressing the end plate on the battery module is as follows: the moving assembly 50 drives the end pressing base 31 to approach the battery module along the third direction, so that the first end pressing member 32 presses the end plate against the battery module, and meanwhile, the pressing force of the first end pressing member 32 also makes the battery module capable of being pressed against the end plate of the other end pressing assembly 30.

S730: the control side pressure module 20 presses the side plate against the battery module.

In this step, the side pressure modules 20 at both sides of the battery module are simultaneously operated to press the side plates against the sides of the battery module.

The side pressure module is used for pressing the side plate on the battery module, and the specific action process is as follows: the first side pressing driving member 213 is activated to drive the first side pressing member 212 to approach the battery module in the first direction to press the side plate against the battery module.

It will be appreciated that the feeding amounts of the two first side pressing members 212 in this step should be kept synchronous to reduce the occurrence of the deviation of the battery module due to uneven stress.

S740: and welding the end plates and the side plates.

This step welds the end plates and the side plates by a welding device to form the housing of the battery module.

It can be appreciated that in the method for applying the clamp provided in this embodiment, in the case that the battery module can be accurately placed at the preset position in the welding cavity 40 through the preset program, the end plate can also be placed at the preset position of the first end pressing member 32 through the preset program, and the side plate can also be placed at the preset position of the first side pressing member 212 through the preset program, so as to reduce the position error among the end plate, the side plate and the battery module, and enable the position error among the end plate, the side plate and the battery module to meet the requirements.

In some embodiments, to align the end plate with the top surface of the battery module, the pressing member 33 may also be moved close to the battery module in the second direction to push the end plate to move in the second direction until the end plate is aligned with the top surface of the battery module in S720.

Referring to fig. 9, in some embodiments, before the control side pressure module 20 presses the side plate to the battery module, i.e., before S730, the jig application method further includes:

s750: the control side pressure module 20 shapes the side plates and forms a binding.

In this step, the side pressure module 20 can perform a shaping operation of bending the side plates to form a hemming in parallel with the end plates, at both ends of the side plates in the third direction.

The specific action process of the shaping operation of the side plate is as follows: the second side pressing piece 223 drives the second side pressing piece 222 to move along the first direction close to the battery assembly and press the second side pressing piece 222 on the side plate, and the second side pressing piece 222 continues to move after being pressed on the side plate so as to bend the side plate to form a wrapping edge; the third side pressing member 235 drives the third side pressing member 234 to move close to the battery assembly in the first direction and press against the side plate, and the third side pressing member 234 continues to move after pressing against the side plate to bend the side plate to form a wrapping edge.

The control side pressure module 20 of the present embodiment shapes and forms the edge covering for the side plates, so that the edge covering welding is facilitated, and the stability of the welding position of the side plates and the end plates is improved.

Referring to fig. 9, in some embodiments, after the control side pressure module 20 presses the side plate to the battery module, i.e., after S730, the jig application method further includes:

s760: the end plate is moved away from the battery module by controlling the end press assembly 30.

In this step, because the side plate with the edge covering of the side pressure module 20 is pressed and held on the battery module in S730, a gap exists between the end plate and the side plate at this time, so as to improve the firmness and stability of the influence of the edge warping and other conditions at the welding position of the end plate and the side plate.

The specific action process of the end plate far away from the battery module by the end pressure assembly 30 is as follows: the moving assembly 50 drives the end pressing base 31 to move away from the battery modules along the third direction, and accordingly drives the end plates to move away from the battery modules and form gaps between the battery modules.

According to the embodiment, after the side plates are formed to be covered and pressed and held on the battery module, the end plates are made to be far away from the battery module, so that the end plates can be propped against the covered edges of the side plates, welding infirm caused by the fact that the edges of the side plates are raised and the like in the welding process of the side plates and the end plates is improved, and the stability of the welding positions of the side plates and the end plates is improved.

Referring to fig. 10, in some embodiments, S730: the control side pressure module 20 presses the side plate to the battery module includes:

s731: the first side pressing assembly 21 of the side pressing module 20 is controlled to operate so that the side plate is pressed against the battery module in the first direction.

In this step, the first side pressing driving member 213 drives the first side pressing assembly 21 to act, so as to drive the side plate to approach the battery module along the first direction and press the side plate against the battery module, thereby determining the position of the side plate relative to the battery module along the first direction.

S732: the first side pressing assembly 21 of the side pressing module 20 is controlled to operate, and the pressing driving member 215 of the first side pressing assembly 21 is pressed against the battery module in the second direction.

In this step, the pressing driving member 215 drives the pressing member 214 to act, and makes the pressing member 214 approach the battery module along the second direction until the pressing member is pressed against the battery module, so as to increase the friction between the battery module and the supporting plate 62, thereby fixing the position of the battery module and reducing the occurrence of the offset of the battery module.

S733: the second side pressure assembly 22 of the side pressure module 20 is controlled to operate so that the side plate is pressed against the third side pressure assembly 23 in the third direction.

In this step, the second side pressing member 223 drives the second side pressing member 222 to move, and the second side pressing member 222 pushes the side plate to move along the third direction, so as to adjust the position of the side plate in the third direction.

In some embodiments, if the third side pressing piece 234 is fixed relative to the third side pressing base 231, the second side pressing piece 222 pushes the side plate to abut against the third side pressing piece 234; in other embodiments, if the third side pressing piece 234 is movable relative to the third side pressing base 231, both the second side pressing piece 222 and the third side pressing piece 234 can push the side plate to move along the third direction to adjust the position of the side plate.

The present embodiment provides a method of adjusting the side plates of the side pressure module 20 in the length direction of the battery module so that the side plates can be aligned with the end plates.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A clamp for clamping a battery module, the clamp comprising:

a base;

the side pressing modules are arranged on the base in an opposite and spaced mode, the side pressing modules are used for fixing the side plates and pressing the side plates to the battery module, the side pressing modules comprise first side pressing assemblies, the first side pressing assemblies comprise first side pressing bases arranged on the base and first side pressing pieces arranged on the first side pressing bases in a sliding mode, and the first side pressing pieces can move along a first direction and are used for pressing the side plates to the battery module;

the two end pressing assemblies are oppositely arranged on the base at intervals, and are used for fixing the end plates and pressing the end plates on the battery module;

the two side pressure modules and the two end pressure assemblies enclose a welding cavity.

2. The clamp of claim 1, wherein the first side press assembly further comprises a first side press drive member disposed on the first side press base, the first side press drive member coupled to the first side press member and configured to drive the first side press member in the first direction.

3. The fixture of claim 1, wherein the first side pressing assembly further comprises a pressing member slidably coupled to the first side pressing base, the pressing member being capable of moving in a second direction and pressing against the battery module, the pressing member pressing the battery module against the base;

The second direction and the first direction form an included angle.

4. A clamp according to claim 3, wherein the first side press assembly further comprises a press drive member provided on the first side press base, the press drive member being connected to the press member and configured to drive the press member in the second direction.

5. The clamp of claim 1 or 2, wherein the side pressure module further comprises a second side pressure assembly and a third side pressure assembly provided on the base, the second side pressure assembly and the third side pressure assembly being provided on opposite sides of the first side pressure assembly, respectively;

the second side pressure assembly is used for propping against the side plate and enabling the side plate to move along a third direction so as to press the side plate to the third side pressure assembly;

the third direction is perpendicular to the first direction.

6. The fixture of claim 5, wherein the second side press assembly comprises a second side press base provided on the base and a second side press member slidably provided on the second side press base, the second side press member being configured to drive the side plate to move in the third direction.

7. The clamp of claim 6, wherein the second side press assembly further comprises a second side press driver disposed on the second side press base, the second side press driver being coupled to the second side press and configured to drive the second side press to move in the third direction.

8. The clamp of claim 6, wherein the second side press assembly further comprises a first pusher slidably coupled to the second side press base, the first pusher being movable in the first direction and configured to bend the side plates.

9. The clamp of claim 8, wherein the second press assembly further comprises a first press drive disposed on the second press base, the first press drive being coupled to the first press and configured to drive the first press in the first direction.

10. The fixture of claim 5, wherein the third side pressure assembly comprises a third side pressure base provided on the base and a third side pressure piece provided on the third side pressure base, the third side pressure piece being configured to abut against the side plate.

11. The clamp of claim 10, wherein the third press assembly further comprises a second press member slidably coupled to the third press base, the second press member being movable in the first direction and configured to bend the side plate.

12. The clamp of claim 11, wherein the third press assembly further comprises a second press drive member disposed on the third press base, the second press drive member being coupled to the second press member and configured to drive the second press member in the first direction.

13. The fixture of claim 1 or 2, wherein the end press assembly comprises an end press base provided on the base and a first end press provided on the end press base, the first end press being movable in a third direction and adapted to press the end plate against the battery module;

the third direction is perpendicular to the first direction.

14. The clamp of claim 13, wherein the end press assembly further comprises a hold down member disposed on the end press base, the hold down member being movable in a second direction and configured to urge the end plate into movement.

15. The clamp of claim 14, wherein the end press assembly further comprises a hold down drive member disposed on the end press base, the hold down drive member being coupled to the first end press and configured to drive the first end press in the third direction.

16. The fixture of claim 13, wherein the end press assembly further comprises a second end press slidably disposed on the end press base, the second end press being movable in the third direction and adapted to press the end plate against the battery module.

17. The clamp of claim 16, wherein the end press assembly further comprises an end press drive member disposed on the base, the end press drive member coupled to the second end press member and configured to drive the second end press member in the third direction.

18. The clamp of claim 13, further comprising a moving assembly disposed on the base for moving at least one of the two end press assemblies in a third direction.

19. The clamp of any one of claims 1-4, further comprising a support base assembly provided on the base for carrying the battery module;

20. The fixture of claim 19, wherein the support base assembly comprises a bracket disposed on the base and a support plate detachably connected to the bracket, the support plate for carrying the battery module.

21. A welding apparatus comprising a clamp as claimed in any one of claims 1 to 20.

22. The welding apparatus of claim 21, further comprising a stock removal module and a stock feed module;

23. A jig application method, characterized by being applied to the jig according to any one of claims 1 to 20; or the welding apparatus of claim 21 or 22;

The clamp application method comprises the following steps:

placing the battery module into the welding cavity;

controlling the side pressure module to press the side plate to the battery module;

welding the end plates and the side plates.

24. The jig application method according to claim 23, wherein before controlling the side pressure module to press a side plate to the battery module, the jig application method further comprises:

and controlling the side pressure module to reshape the side plate and form a wrapping edge.

25. The jig application method according to claim 24, wherein after controlling the side pressure module to press a side plate to the battery module, the jig application method further comprises:

and controlling the end pressing assembly to enable the end plate to be far away from the battery module.

26. The jig application method according to claim 23, wherein controlling the side pressure module to press a side plate against the battery module comprises:

controlling a first side pressing assembly of the side pressing module to act so that the side plate is pressed and held on the battery module along a first direction;

controlling a first side pressing assembly of the side pressing module to act, and enabling a top pressing driving piece of the first side pressing assembly to be pressed and held on the battery module along a second direction;

Controlling a second side pressure assembly of the side pressure module to act so that the side plate is pressed on the third side pressure assembly along a third direction;

the third direction is perpendicular to the first direction.