CN220128004U - Lug welding tool device - Google Patents

Abstract

The utility model provides a tab welding tool device which is used for welding and connecting tabs and a busbar of a soft package module and comprises a tool bottom plate, a limiting baffle and a welding mechanism, wherein the limiting baffle is fixedly arranged on one side of the tool bottom plate; the welding mechanism comprises at least one sliding rail and a welding assembly moving on the sliding rail, the sliding rail is fixedly arranged on the other side of the tool bottom plate, and the position of the strip hole on the limiting baffle piece corresponding to the first fixing hole on the tool bottom plate can be adjusted in real time according to the model size of the soft package module, so that the soft package module is placed and limited and fixed.

Description

Lug welding tool device

Technical Field

The utility model relates to the technical field of welding of battery module tabs, in particular to a welding fixture device for soft package battery module tabs.

Background

The battery module is formed by connecting battery cells in series and parallel, and a laser welding process is generally adopted to weld the battery cell electrode lugs with a current collector (copper bars or aluminum bars), wherein the welding of the battery electrode lugs is a key process in the manufacturing process of the battery module, certain welding strength, overcurrent capacity and the like are required to be met, and the welding of the battery electrode lugs of various types flexibly, accurately and rapidly is of great significance to the research and development and production of batteries.

The welding technology of the current soft package battery module on the production line is as follows: through supporting frock clamp and the welded procedure that debugs, fix the soft packet module on the assembly line tray and flow into in the welding workstation, welding press head in the welding workstation welds battery tab and collector, along with the removal of soft packet module along the assembly line, the welding press head crimping in proper order waits to weld the region, accomplishes after all needs welded positions on the module, soft packet module flows out the welding workstation voluntarily. The welding technique has the following disadvantages:

firstly, the welding machine is only suitable for products on a production line, and a welding pressure head in a welding workstation sequentially realizes welding of battery lugs and a converging body along with the movement of a soft package module along a production line, so that the welding machine is obviously not suitable for welding sample modules with small quantity in the initial stage of product development; and the tool clamp and the soft package module are matched, so that the compatibility is poor.

Secondly, after the external dimensions of the module are changed, the data such as a welding program, visual parameters and the like need to be newly adjusted in software, the fixture needs to be replaced in hardware, the adjustment time period is long, and the problems of high overall production cost, low working efficiency and the like are caused.

Therefore, for the research and development personnel in the field, there is a need to develop a tab welding fixture device with strong compatibility, low production cost and higher working efficiency.

Disclosure of Invention

In view of the above, the embodiment of the utility model provides a tab welding fixture device, which can adjust the positions of the strip holes on the limiting baffle piece and the corresponding positions of the first fixing holes on the fixture bottom plate in real time according to the model size of the soft package module, so as to realize the placement and limiting fixation of the soft package module.

In order to achieve the above purpose, the embodiment of the utility model provides a tab welding tool device, which is used for welding and connecting tabs and bus bars of a soft package module, the tab welding tool device comprises a tool bottom plate, a limiting baffle piece and a welding mechanism, wherein the limiting baffle piece is fixedly arranged on one side of the tool bottom plate and used for limiting one side of the soft package module; the welding mechanism comprises at least one sliding rail and a welding assembly moving on the sliding rail, and the sliding rail is fixedly arranged on the other side of the tool bottom plate; the fixture comprises a fixture bottom plate, a plurality of first fixing holes for fixing the limiting baffle piece and a plurality of second fixing holes for fixing the sliding rail are formed in the fixture bottom plate, a plurality of strip holes are formed in the limiting baffle piece, and the strip holes correspond to the first fixing holes.

Further, the welding assembly comprises a sliding block sliding along the sliding rail, a fixed seat fixed on the sliding block and a welding structure fixedly connected to the fixed seat.

Further, the welding structure comprises a welding press head, an insulating fixing block and a quick clamping structure.

Further, the welding pressure head is including being used for fixed connection link and the work end that is used for compressing tightly laminating utmost point ear and the busbar on the insulating fixed block, the fretwork hole has been seted up on the work end, and laser sees through the fretwork hole and welds utmost point ear and busbar.

Further, a pressure head fixing hole is formed in one side of the insulating fixing block, and a rapid clamping part fixing hole is formed in the other side of the insulating fixing block.

Further, the quick clamp structure comprises a flange base fixed on the fixing seat and a connecting rod mechanism rotationally connected to the flange base, wherein the connecting rod mechanism comprises an operation handle and a compressing movable part, and the compressing movable part is fixed on the insulating fixing block.

Further, the welding pressure head is made of brass.

Further, the fixing base comprises a transverse plate, a vertical plate and a supporting plate, one end of the transverse plate is abutted to the lower portion of one side of the vertical plate, and the supporting plate is fixedly connected to two ends of the abutted portion of the transverse plate and the vertical plate.

Further, the transverse plate is provided with a sliding block fixing hole, and the vertical plate is provided with a quick flange clamping fixing hole.

Further, the number of the sliding rails is two, which are arranged in parallel.

Compared with the prior art, the utility model has the following advantages:

according to the lug welding fixture device, the strip holes on the limiting baffle piece can be adjusted to correspond to part of the first fixing holes on the fixture bottom plate in real time according to the model size of the soft package module, so that the soft package module is placed and limited and fixed.

Drawings

The following drawings are included to provide a further understanding of the utility model and are intended to be illustrative of and are not limiting to the scope of the utility model. In the drawings:

fig. 1 is a schematic perspective view of a tab welding tool device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a soft package module according to another embodiment of the present utility model when the soft package module is placed and limited on a tab welding fixture device and the quick clip structure is in an open state;

FIG. 3 is a schematic view of a partially enlarged structure of a quick clamp structure in a compressed state according to another embodiment of the present utility model;

FIG. 4 is a schematic diagram of a sink according to another embodiment of the present utility model;

FIG. 5 is a schematic view of a bottom plate of a tooling according to another embodiment of the present utility model;

FIG. 6 is a schematic view of a fixing base on a welding assembly according to another embodiment of the present utility model;

FIG. 7a is a schematic view of a quick clamp structure in an open state according to another embodiment of the present utility model;

FIG. 7b is a schematic view of a quick clamp structure in a locked state according to another embodiment of the present utility model;

FIG. 8a is a schematic view of a view angle structure of an insulation fixing block with a press head fixing hole formed at one side thereof according to another embodiment of the present utility model;

FIG. 8b is a schematic view of another embodiment of the present utility model, in which a hole for fixing the fast clamping portion is formed on the other side of the insulating fixing block;

fig. 9 is a schematic view of a welding ram according to another embodiment of the present utility model.

Reference numerals:

1. a tool bottom plate; 11. a first fixing hole; 12. a second fixing hole;

2. a limit stop; 20. a slit hole;

3. a welding mechanism;

31. a slide rail;

32. welding the assembly;

321. a slide block;

322. a fixing seat; 3221. a cross plate; 3222. a riser; 3223. a support plate;

323. a quick clamp structure; 3231. a flange base; 3232. an operating handle; 3233. compressing the movable part; 3234. a connecting rod hinge point;

324. an insulating fixing block; 3241. a pressure head fixing hole; 3242. a fast clamping and pressing part fixing hole;

325. welding a pressure head; 3250. a hollowed hole; 3251. a connection end; 3252. a working end;

4. a soft package module; 41. a battery module frame;

5. collecting fluid; 50. a bus bar slit;

6. and bending the tab.

Detailed Description

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model.

Unless defined otherwise, all directions, such as up, down, left, right, etc., referred to herein are based on the directions shown in fig. 1 of the present embodiment, and if the specific gesture changes, the directional indication changes accordingly. The terms "first," "second," "third," "fourth," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Furthermore, in various embodiments of the present disclosure, the same or similar reference numerals denote the same or similar components.

In the present utility model, unless explicitly specified and limited otherwise, the terms "coupled," "affixed," and the like are to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of the claimed utility model.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a tab welding fixture device, which is used for welding a tab and a busbar of a soft package module, and comprises a fixture bottom plate 1, a limiting stopper 2 and a welding mechanism 3, wherein the limiting stopper 2 is fixedly installed on one side of the fixture bottom plate 1, and is used for limiting one side of the soft package module 4; the other side of the soft package module 4 is close to the welding mechanism 3, the welding mechanism 3 comprises at least one sliding rail 31 and a welding assembly 32 moving on the sliding rail, and the sliding rail 31 is fixedly arranged on the other side of the tool bottom plate 1.

Wherein, combine the fig. 5 to show, offer a plurality of first fixed orifices 11 that are used for fixing limiting baffle 2 and a plurality of second fixed orifices 12 that are used for fixed slide rail 31 on the frock bottom plate 1 of this embodiment, combine the fig. 1 to show, a plurality of rectangular holes 20 have been offered on the limiting baffle 1, rectangular hole 20 and a plurality of first fixed orifices 11 correspond, the fixed orifices on slide rail 31 correspond with second fixed orifices 12, but the first fixed orifices 11 that rectangular hole 20 corresponds according to the model size real-time adjustment of soft packet module realizes that soft packet module 4 is placed and spacing fixed, has convenient operation, simple structure, and the compatibility is strong, advantage such as with low costs.

It should be noted that, the sliding rail 31 in this embodiment is two parallel linear guide rails, each linear guide rail is provided with a mounting hole adapted to the second fixing hole 12, and the fixing connection with the tooling bottom plate 1 is realized by a special screw. Moreover, the movable welding assembly is realized between each linear guide rail and the welding assembly through the sliding block 321, the welding pressure head 325 is positioned to a welding area, the quick clamping structure 323 is locked, and the bending lug 6 of the welding area is pressed and welded with the converging body 5.

Specifically, referring to fig. 3 and 4, the current collector 5 in this embodiment is fixed on the battery module frame 41, and the pole piece tab of the soft package module 4 is bent to form a bent tab 6 after passing through the current collector gap 50, so that the bent tab 6 and the current collector 5 can be pressed and attached fast by a movable welding press head, and continuous welding of tab laser welding is directly performed, so that welding strength and welding efficiency are greatly improved.

By utilizing the technical scheme of the embodiment, the strip hole on the limiting baffle piece can be adjusted in real time to correspond to the part of the first fixing hole on the tool bottom plate according to the size of the soft package module, so that the soft package module is placed and limited and fixed.

Example two

On the basis of the first embodiment, as a preferred embodiment, as shown in fig. 1, 2 and 3, the welding assembly 32 in this embodiment includes a slide block 321 sliding along the slide rail 31, a fixing base 322 fixed on the slide block 321, and a welding structure fixedly connected to the fixing base 322, where the welding structure includes a welding ram 325, an insulating fixing block 324 and a quick clamping structure 323.

As shown in fig. 9, the welding press head 325 in this embodiment includes a connection end 3251 for being fixedly connected to the insulating fixing block 324 and a working end 3252 for pressing and attaching the tab and the bus body, the working end 3252 is provided with a hollowed hole 3250, after the welding mechanism is fast clamped and locked, the welding press head is stressed to press and attach the tab and the bus body, and the tab and the bus body are welded by laser through the hollowed hole 3250.

As shown in fig. 8a and 8b, a pressing head fixing hole 3241 is formed on one side of the insulating fixing block 324, and a quick clamping portion fixing hole 3242 is formed on the other side of the insulating fixing block.

It should be noted that, the welding press head 325 in this embodiment is preferably but not limited to brass, and generates larger heat when the tab is welded by laser, and the welding press head is repeatedly pressed against the tab, so that brass with good heat conduction and wear resistance is selected, and the welded heat can be effectively led out, so that excessive heat is prevented from being absorbed by the soft battery core, and the overall performance of the soft battery is guaranteed.

Furthermore, the insulating fixing block in the embodiment is preferably but not limited to a cuboid, and is made of an insulating material with high enough strength, so that the welding pressure head is isolated from the rapid clamping structure, and the short circuit condition of the soft package module after the pressing is avoided. The welding pressure head can be arranged on different pressure head fixing hole sites according to the actual demand position through the plurality of pressure head fixing holes 3241 formed in one side surface, and the welding pressure head has the advantages of being strong in compatibility, simple in structure, convenient to use and the like.

As shown in fig. 7a and 7b, the quick clamp structure 323 includes a flange base 3231 fixed on the fixed base riser and a link mechanism rotatably connected to the flange base 3231, where the link mechanism includes an operation handle 3232 and a pressing movable portion 3233, and the pressing movable portion 3233 is fixed on a quick clamp pressing portion fixing hole 3242 on the other side of the insulating fixing block by a locking screw, so as to realize the fixed connection between the quick clamp structure and the insulating fixing block. When the several link hinge points 3234 are not on the same straight line, the quick clamp structure is in a non-locking open state, as shown in fig. 7 a; when several link hinge points 3234 are on the same straight line, the quick clamp structure is in a dead point condition, i.e., a locked condition as shown in fig. 7 b.

The quick clamp configuration in this embodiment preferably employs a standard toggle clamp style quick clamp.

As shown in fig. 6, the fixing base 322 includes a transverse plate 3221, a vertical plate 3222 and a support plate 3223, one end of the transverse plate 3221 abuts against the lower portion of one side of the vertical plate 3222, and two support plates 3223 are respectively and fixedly connected to two ends of the abutting positions of the transverse plate 3221 and the vertical plate 3222. Further, the transverse plate 3221 is provided with a slide block fixing hole, and the vertical plate 3222 is provided with a quick clamping flange fixing hole for fixing the flange base 3231.

It should be noted that, the material of the fixing seat in this embodiment is a metal material with high enough strength, and is fixed by a bolt after being spliced; through the slider fixed orifices of seting up on diaphragm 3221 and the quick flange fixed orifices of pressing from both sides of seting up on riser 3222, its effect is the flange base connection that is used for fixed slider and quick clamp structure, and the fixing base is whole to be removed along with linear slide rail.

In conclusion, the tab welding tool device provided by the utility model has a large movable range, is compatible with welding of the tabs of the soft-package battery modules meeting various different model sizes, and greatly reduces the production cost. Specifically, according to the size of the soft package module, the strip holes on the limiting baffle piece are adjusted in real time to correspond to part of the first fixing holes on the tool bottom plate, so that the soft package module is placed, limited and fixed, and the device has the advantages of convenience in operation, simple structure, strong compatibility and low cost; meanwhile, the welding area is pressed by the movable welding assembly in a rapid positioning way, continuous welding is directly carried out, dotting welding operation is not needed, one-step forming is carried out, the welding quality and the welding work efficiency are greatly improved, and the technical problems of poor compatibility, high cost and low work efficiency in the prior welding technology are fully solved.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, but is capable of use in various other combinations, modifications and environments and is capable of changes within the scope of the inventive subject matter, either as a result of the foregoing teachings or as a result of the knowledge or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (10)

1. A utmost point ear welding tool equipment for weld the utmost point ear and the busbar of soft packet of module, its characterized in that includes:

a tool bottom plate;

the limiting blocking piece is fixedly arranged on one side of the tool bottom plate and used for limiting one side of the soft package module;

the welding mechanism comprises at least one sliding rail and a welding assembly moving on the sliding rail, and the sliding rail is fixedly arranged on the other side of the tool bottom plate;

the fixture comprises a fixture bottom plate, a plurality of first fixing holes for fixing the limiting baffle piece and a plurality of second fixing holes for fixing the sliding rail are formed in the fixture bottom plate, a plurality of strip holes are formed in the limiting baffle piece, and the strip holes correspond to the first fixing holes.

2. The tab welding tooling device of claim 1 wherein the welding assembly comprises a slider sliding along the slide rail, a fixed seat fixed to the slider, and a welding structure fixedly attached to the fixed seat.

3. The tab welding tooling device of claim 2 wherein the welding structure comprises a welding ram, an insulating fixture block and a quick clamp structure.

4. The tab welding tooling device of claim 3, wherein the welding press head comprises a connecting end fixedly connected to the insulating fixing block and a working end for pressing and attaching the tab to the bus body, and the working end is provided with a hollowed hole through which the tab and the bus body are welded by laser.

5. The tab welding fixture apparatus of claim 3 wherein one side of the insulating fixture block is provided with a ram fixing hole and the other side is provided with a quick clamp pressing part fixing hole.

6. The tab welding tooling device of claim 3 wherein the quick clamp structure comprises a flange base fixed to the fixed base and a linkage rotatably coupled to the flange base, the linkage comprising an operating handle and a compression movable portion fixed to the insulating fixed block.

7. The tab welding tooling device of claim 3 wherein the welding ram is brass.

8. The tab welding tooling device of claim 2, wherein the fixing base comprises a transverse plate, a vertical plate and a supporting plate, one end of the transverse plate is abutted to the lower portion of one side of the vertical plate, and the supporting plate is fixedly connected to two ends of the abutted portion of the transverse plate and the vertical plate.

9. The tab welding tooling device of claim 8, wherein the cross plate is provided with a slider mounting hole and the riser is provided with a quick clamp flange mounting hole.

10. The tab welding fixture device of claim 1, wherein the number of slide rails is two arranged in parallel with each other.