CN-122007603-A - Battery clamp and battery welding device

CN122007603ACN 122007603 ACN122007603 ACN 122007603ACN-122007603-A

Abstract

The invention provides a battery clamp and a battery welding device, wherein the battery clamp comprises a clamp bottom plate, a clamp top plate, a lower pressing plate assembly, an upper pressing plate assembly and an upper pressing plate assembly, wherein the clamp top plate is arranged on the clamp bottom plate in an adjustable mode along the vertical direction and is positioned above the clamp bottom plate, the lower pressing plate assembly is assembled on the clamp bottom plate and is used for bearing a battery, the upper pressing plate assembly is assembled on the clamp top plate and is provided with a first air blowing port and a dust suction port, the first air blowing port is arranged towards a welding line, the outline of the first air blowing port corresponds to the outline of the welding line, the dust suction port is arranged towards the welding line, and the outline of the dust suction port corresponds to the outline of the welding line. The outline of the first air blowing port and the outline of the dust extraction port correspond to the outline of the welding line, which means that all welding spot areas on the outline of the welding line can be provided with nitrogen in real time and remove dust and impurities during welding, the welding spot areas can be ensured to be always in an anaerobic and dust-free atmosphere, the oxidation phenomenon of the welding spot, namely the welding line, can be effectively avoided, and the welding quality of a battery is ensured.

Inventors

Yang Jinsha
HUANG WEIJIE
HU QUN
WANG XUDONG
LIN ZHIWEI
HE CHAO
HAN DI

Assignees

深圳市联赢激光股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (14)

1. A battery clamp, comprising: A clamp base plate; the clamp top plate is adjustably arranged on the clamp bottom plate along the vertical direction and is positioned above the clamp bottom plate; The lower pressing plate assembly is assembled on the clamp bottom plate and used for bearing a battery; The upper pressing plate assembly is assembled on the clamp top plate and is provided with a first air blowing opening and a dust suction opening, the first air blowing opening is arranged towards the welding line, the outline of the first air blowing opening corresponds to the outline of the welding line, and the dust suction opening is arranged towards the welding line, and the outline of the dust suction opening corresponds to the outline of the welding line.
2. The battery clamp according to claim 1, wherein the upper pressing plate assembly comprises a clamp pressing plate, an upper blowing plate and a dust extraction plate, an upper blowing groove is arranged on the upper side surface of the clamp pressing plate, a first through hole is formed in the bottom of the upper blowing groove in a penetrating manner, a second through hole is formed in the upper blowing plate in a penetrating manner, and a third through hole is formed in the dust extraction plate in a penetrating manner; A first guide cylinder is arranged on the lower side surface of the upper air blowing plate, the inner wall of the first guide cylinder is in smooth transition with the inner wall of the second through hole, the first guide cylinder is embedded into the first through hole, a first air blowing port is formed between the outer wall of the first guide cylinder and the inner wall of the first through hole, and the first air blowing port is communicated with the upper air blowing groove; The dust extraction device is characterized in that a second guide cylinder is arranged on the lower side face of the dust extraction plate, the inner wall of the second guide cylinder is in smooth transition with the inner wall of the third through hole, the second guide cylinder is embedded into the second through hole, and the dust extraction opening is formed between the outer wall of the second guide cylinder and the inner wall of the second through hole and/or the inner wall of the first guide cylinder.
3. The battery holder according to claim 2, wherein a first step is provided on an inner wall of the upper air blowing groove, and the upper air blowing plate is fitted to the first step.
4. The battery clamp of claim 2, wherein the dust extraction plate is mounted to an upper side of the clamp plate, and an upper dust extraction chamber is defined between the dust extraction plate and the clamp plate and the upper air blowing plate.
5. The battery clamp according to claim 2, wherein a third guide cylinder is arranged on the inner side surface of the bottom of the upper air blowing groove, and the inner wall of the third guide cylinder is in smooth transition with the inner wall of the first through hole.
6. The battery clamp of claim 1, wherein the upper platen assembly comprises a hook push block that is movable in a horizontal direction to approach or depart from the battery, the hook push block having a support step disposed thereon; when the battery clamp is in a working state, the supporting step is lower than the battery in the vertical direction.
7. The battery clamp of claim 1, wherein the lower platen assembly includes a main plate on which a second air vent is disposed, the second air vent being disposed toward a backside region of the weld and having a contour corresponding to a contour of the weld.
8. The battery clamp according to claim 7, wherein a fourth through hole is formed in the main board in a penetrating manner, a lower air blowing plate is arranged on the lower side face of the main board, a fifth through hole is formed in the lower air blowing plate in a penetrating manner, a fourth guide cylinder is arranged on the lower air blowing plate, and the inner wall of the fourth guide cylinder is in smooth transition with the inner wall of the fifth through hole; the fourth guide cylinder is embedded into the fourth through hole, and the inner wall of the fourth through hole and the outer wall of the fourth guide cylinder form the second air blowing port.
9. The battery clamp according to claim 7, wherein a fourth through hole is formed in the main board in a penetrating manner, a jacking installation seat is arranged on the lower side face of the main board, a product jacking plate is arranged on the upper side face of the jacking installation seat, the product jacking plate is located in the fourth through hole, and a detection hole is formed in the jacking installation seat in a penetrating manner and used for exposing a back side area of the welding seam.
10. The battery clamp according to claim 9, wherein jacking holes are formed in the jacking mounting base and the product jacking plate in a penetrating manner, and the jacking holes in the jacking mounting base and the product jacking plate are in one-to-one correspondence and coaxial and are used for penetrating the thimble assemblies.
11. The battery holder according to claim 7, wherein the upper side surface of the main plate is provided with a reference pushing piece and a floating pushing piece in the circumferential direction of the outline of the second air blowing port, the floating pushing piece being disposed opposite to the reference pushing piece, and the battery being located between the floating pushing piece and the reference pushing piece disposed opposite to the floating pushing piece.
12. The battery clamp of claim 11, wherein the floating edge pushing piece comprises an edge pushing slide seat, a positioning pushing block and a driving air cylinder, the edge pushing slide seat is slidably mounted on the main board, the driving air cylinder is fixedly mounted on the main board, the positioning pushing block is mounted on the edge pushing slide seat, an air cylinder joint is configured at the free end of a piston rod of the driving air cylinder, a limiting plate and a spring limiting block are configured on the edge pushing slide seat, the air cylinder joint can move between the limiting plate and the spring limiting block, and a buffer spring is pressed between the spring limiting block and the air cylinder joint.
13. The battery clamp of claim 1, wherein the lower platen assembly has a first positioning member disposed thereon and the upper platen assembly has a second positioning member disposed thereon that mates with the first positioning member.
14. A battery welding device comprising a frame, a detection module, a welding module, a thimble assembly, and a battery clamp according to any one of claims 1-13, the battery clamp being adjustably mounted to the frame, the welding module and the detection module both being mounted to the frame, the battery clamp being between the welding module and the detection module.

Description

Battery clamp and battery welding device Technical Field The invention relates to the technical field of batteries, in particular to a battery clamp and a battery welding device. Background The battery includes a housing and a cover plate, which are typically combined and laser welded during assembly. In the prior art, a blowing head and a dust collection head are generally matched, and blowing and dust collection operations are carried out towards the welding spot position, so that welding seams are prevented from being oxidized, and welding operation spaces are purified. In the welding process, the blowing head and the dust collection head move along with the welding spot so as to ensure that the welding atmosphere of the welding spot area meets the requirements in real time. However, the high temperature generated during the laser welding process cannot be quickly transferred to other media on the battery, when the blowing head follows the welding spot to move along the outline of the welding seam, the welding spot area which is welded and is not cooled sufficiently can return air under the action of atmospheric pressure, which means that the welding spot area still has the risk of being oxidized, meanwhile, impurities can be continuously generated by the welding operation when the welding of the same battery is not finished, and when the dust suction head and the blowing head synchronously move, the dust suction head and the blowing head have the risk of falling back to the welding spot area where the welding is finished for part of the impurities which do not enter the dust suction head, so that the welding quality is influenced. Disclosure of Invention In view of the shortcomings of the prior art, a first object of the present invention is to provide a battery clamp, which can continuously provide nitrogen for welding spots, and can effectively avoid oxidation of welding seams. A second object of the present invention is to provide a battery welding apparatus that can prevent oxidation of a weld region and can effectively improve the welding quality of a battery. The embodiment of the invention is realized by the following technical scheme: The battery clamp comprises a clamp bottom plate, a clamp top plate, a lower pressing plate assembly and an upper pressing plate assembly, wherein the clamp top plate is adjustably arranged on the clamp bottom plate in the vertical direction, the clamp top plate is located above the clamp bottom plate, the lower pressing plate assembly is assembled on the clamp bottom plate and used for bearing a battery, the upper pressing plate assembly is assembled on the clamp top plate and is provided with a first air blowing opening and a dust suction opening, the first air blowing opening is arranged towards a welding line, the outline of the first air blowing opening corresponds to the outline of the welding line, the dust suction opening is arranged towards the welding line, and the outline of the dust suction opening corresponds to the outline of the welding line. According to a preferred embodiment, the upper pressing plate assembly comprises a clamp pressing plate, an upper blowing plate and a dust extraction plate, wherein an upper blowing groove is formed in the upper side surface of the clamp pressing plate, a first through hole is formed in the bottom of the upper blowing groove in a penetrating mode, a second through hole is formed in the upper blowing plate in a penetrating mode, a third through hole is formed in the dust extraction plate in a penetrating mode, a first guide cylinder is arranged in the lower side surface of the upper blowing plate, the inner wall of the first guide cylinder and the inner wall of the second through hole are in smooth transition, the first guide cylinder is embedded in the first through hole, a first blowing port is formed between the outer wall of the first guide cylinder and the inner wall of the first through hole, the first blowing port is communicated with the upper blowing groove, a second guide cylinder is arranged in the lower side surface of the dust extraction plate, the inner wall of the second guide cylinder and the inner wall of the third through hole are in smooth transition, the second guide cylinder is embedded in the second through hole, and the outer wall of the second guide cylinder and the inner wall of the second through hole and/the inner wall of the first guide cylinder or the first blowing port are formed. According to a preferred embodiment, a first step is provided on the inner wall of the upper air blowing groove, and the upper air blowing plate is fitted to the first step. According to a preferred embodiment, the dust extraction plate is assembled on the upper side surface of the clamp pressing plate, and an upper dust extraction cavity is formed between the dust extraction plate, the clamp pressing plate and the upper air blowing plate. According to a preferred embodiment, a third guide cylinder is arran