CN219944935U - Laser welding pressure head device - Google Patents
Laser welding pressure head device Download PDFInfo
- Publication number
- CN219944935U CN219944935U CN202320136127.0U CN202320136127U CN219944935U CN 219944935 U CN219944935 U CN 219944935U CN 202320136127 U CN202320136127 U CN 202320136127U CN 219944935 U CN219944935 U CN 219944935U
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- CN
- China
- Prior art keywords
- welding
- laser
- head
- pressure head
- channel
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 88
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000002893 slag Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a laser welding pressure head device, which comprises a welding platform and a pressure head arranged above the welding platform, and is characterized in that a welding head is arranged at the bottom of the pressure head, a laser channel is arranged in the pressure head, the laser channel penetrates through the pressure head and the welding head, a negative pressure device is arranged in the pressure head, and the bottom of the pressure head is connected with a collecting part; the collecting part is positioned above the welding head, a through hole communicated with the laser is arranged in the collecting part, an upward chute is arranged in the through hole, the collecting device is arranged in the pressure head, the chute is arranged in the box and is combined with the negative pressure channel through the collecting device, the welding slag is discharged during welding through negative pressure, and when the inner wall of the pressure head is in charge of welding slag and falls, the falling welding slag can be collected through the chute, so that foreign matters such as welding slag can be effectively prevented from falling onto a welding surface, and the welding safety is guaranteed.
Description
Technical Field
The utility model relates to the technical field of lithium battery production technical equipment, in particular to a laser welding pressure head device.
Background
The laser welding is to utilize high energy laser to heat welding material locally, the energy radiated by the laser is led to the inside of the material by heat transfer to diffuse so as to reach the melting point of the metal material, and the material is melted to form a specific molten pool so as to achieve the welding purpose. Mainly aims at the welding of thin-wall materials and precise parts, and can realize spot welding, butt welding, stitch welding and the like.
In the laser welding process, because the welding material is melted at high temperature in the welding process, the shielding gas is used for isolating air to prevent oxidation, and because the laser moves according to a set track, a molten pool can be stirred, splashing can be generated, welding slag formed by cooling splashes enters the battery cell, short circuit in the battery cell is caused to fire, and the yield of the battery cell is reduced.
Disclosure of Invention
The utility model aims to provide a laser welding pressure head device which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the laser welding pressure head device comprises a welding platform and a pressure head arranged above the welding platform, and is characterized in that a welding head is arranged at the bottom of the pressure head, a laser channel is arranged in the pressure head, the laser channel penetrates through the pressure head and the welding head, a negative pressure device is arranged in the pressure head, and the bottom of the pressure head is connected with a collecting part; the collecting part is positioned above the welding head, a through hole communicated with the laser is formed in the collecting part, and an upward chute is formed in the through hole.
As a further scheme of the utility model: the upper end of the welding platform is provided with a groove for clamping the battery cell cover plate.
As a further scheme of the utility model: the negative pressure device comprises at least one negative pressure channel positioned in the pressure head, the lower end of the negative pressure channel is communicated with the inside of the welding head, and the other end of the negative pressure channel is connected with a negative pressure source.
As a further scheme of the utility model: the welding head is characterized in that an air inlet channel is arranged on the pressure head, one end of the air inlet channel is communicated with the inside of the welding head, an air inlet communicated with the air inlet channel is arranged on the pressure head, and the air inlet is connected with a protective air source.
As a further scheme of the utility model: the laser channels are vertically arranged, and the upper ends of the laser channels are connected with laser generators.
As a further scheme of the utility model: the pressure head is provided with a mounting groove, and the collecting part is detachably connected with the pressure head through the mounting groove.
As a further scheme of the utility model: the collecting part is of a hollow rectangular box-packed structure, the upper end and the lower end of the collecting part are of an opening structure, and a cavity in the middle of the collecting part forms a through hole coaxially arranged with the laser channel.
As a further scheme of the utility model: and a connecting clamping groove used for being connected with the mounting groove is formed in the outer side of the collecting part.
As a further scheme of the utility model: the inner wall of collecting part all is equipped with the chute all around, the opening direction of chute is upwards for the slant, the chute is equipped with a plurality of.
As a further scheme of the utility model: the welding platform below is equipped with the base upper end, the pressure head is located welding platform top and upper and lower sliding arrangement.
Compared with the prior art, the utility model has the beneficial effects that:
1. the collecting device is arranged in the pressure head, the chute is arranged in the box, the collecting device is combined with the negative pressure channel, welding slag generated in welding is discharged through negative pressure, and when the inner wall of the pressure head is in charge of the welding slag and falls, the falling welding slag can be collected through the chute, so that foreign matters such as the welding slag can be effectively prevented from falling onto a welding surface, the welding safety is ensured, and the yield of the battery cell after welding is improved;
2. the utility model is also provided with the air inlet channel in the pressure head, and protective gas is introduced into the pressure head through the air inlet channel, and in the laser welding process, the protective gas is filled on the surface of the metal molten pool to isolate the contact between the molten liquid and air, thus playing a role in protection;
3. the collecting device is detachably connected with the pressure head, and is convenient to clean and replace.
Drawings
FIG. 1 is a schematic diagram of a welding apparatus according to the present embodiment;
fig. 2 is a schematic diagram of a ram structure of the welding device according to the present embodiment;
FIG. 3 is a top view of the collecting portion of the present embodiment;
fig. 4 is a schematic view showing the internal structure of the collecting portion according to the present embodiment.
In the figure: 1-base, 2-welding platform, 3-pressure head, 4-laser passageway, 5-negative pressure passageway, 6-air inlet passageway, 7-air inlet, 8-soldered connection, 9-collecting part, 10-electric core, 11-apron, 12-mounting groove, 13-through-hole, 14-chute, 15-connection draw-in groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, in an embodiment of the present utility model, a laser welding pressure head device includes a base 1 and a welding platform 2 disposed at an upper end of the base 1, a groove for clamping a battery cell cover plate is disposed at an upper end of the welding platform 2, a pressure head 3 is disposed above the welding platform 2, the pressure head 3 is disposed in a sliding manner up and down, a welding head 8 is disposed at a bottom of the pressure head 3, a laser channel 4 is disposed in the pressure head 3, the laser channel 4 penetrates the pressure head 3 and the welding head 8, the laser channel 4 is vertically disposed, a laser generator is connected to an upper end of the laser channel 4, a negative pressure device is disposed in the pressure head 3, the negative pressure device includes at least one negative pressure channel 5 disposed in the pressure head 3, a lower end of the negative pressure channel 5 is communicated with the welding head 8, a negative pressure source is connected to another end of the negative pressure channel 5, an air inlet channel 6 is disposed on the pressure head 3, one end of the air inlet channel 6 is communicated with the welding head 8, an air inlet 7 communicated with the air inlet 6 is disposed on the pressure head 3, and the air inlet 7 is connected to a protective air source.
The pressure head 3 bottom is connected with collecting portion 9, collecting portion 9 is located the soldered connection 8 top, be equipped with mounting groove 12 on the pressure head 3, collecting portion 9 passes through mounting groove 12 and pressure head 3 detachable connection, collecting portion 9's outside is equipped with and is used for the connection draw-in groove 15 of being connected with mounting groove 12, collecting portion 9 is hollow rectangle box-packed structure, collecting portion 9 upper and lower both ends are open structure, the cavity formation in the middle of collecting portion 9 is with laser passageway 4 coaxial arrangement's through-hole 13, be equipped with the ascending chute 14 of opening in the through-hole 13, that is, all be equipped with chute 14 around collecting portion 9's inner wall, chute 14's opening direction is the slant upwards, in this embodiment, chute 14 is equipped with a plurality of, a plurality of chute 14 arrange in proper order at collecting portion 9's inner wall.
When the welding device is used, firstly, the cover plate 11 of the battery 10 is placed in the groove on the welding platform 2, then the pressure head 3 is slid downwards, so that the pressure head 3 is pressed onto the cover plate 11, a closed space is formed above the cover plate 11 through the welding head 8 at the lower end of the pressure head 3, then shielding gas is introduced into the closed space through the air inlet channel 6, meanwhile, the negative pressure passing through 5 is started, the negative pressure is increased for the space through the negative pressure channel 5, namely, the shielding gas enters the closed space in the welding head 8 through the air inlet channel 6 and then is discharged through the negative pressure channel 5, then the laser welding device can be started, laser generated by the laser welding device enters the cover plate 11 through the laser channel 4 and the through hole 13 on the collecting part 9, and then laser welding can be carried out, the shielding gas is filled on the surface of a metal molten pool, the molten pool is isolated from being contacted with air, the molten pool is prevented from being oxidized, the splash generated in the welding process is absorbed through the negative pressure channel 5, the splash taken away through the inner wall 14 of the collecting part 9 is prevented from being carried away, and the splash is prevented from falling into the inner wall.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a laser welding pressure head device, includes welding platform (2) and set up in pressure head (3) of welding platform (2) top, its characterized in that, pressure head (3) bottom is equipped with welding head (8), be equipped with laser passage (4) in pressure head (3), laser passage (4) run through pressure head (3), welding head (8), be equipped with negative pressure device in pressure head (3), pressure head (3) bottom is connected with collecting part (9); the collecting part (9) is positioned above the welding head (8), a through hole (13) communicated with the laser channel (4) is formed in the collecting part (9), and a chute (14) with an upward opening is formed in the through hole (13).
2. The pressure head device for laser welding according to claim 1, wherein the upper end of the welding platform (2) is provided with a groove for clamping the battery cell cover plate.
3. A laser welding ram device according to claim 1, characterized in that the negative pressure device comprises at least one negative pressure channel (5) in the ram (3), the lower end of the negative pressure channel (5) being in communication with the welding head (8), the other end of the negative pressure channel (5) being connected with a negative pressure source.
4. The laser welding press head device according to claim 1, wherein the press head (3) is provided with an air inlet channel (6), one end of the air inlet channel (6) is communicated with the inside of the welding head (8), the press head (3) is provided with an air inlet (7) communicated with the air inlet channel (6), and the air inlet (7) is connected with a protective air source.
5. A laser welding ram device according to claim 1, characterized in that the laser channel (4) is arranged vertically, the upper end of the laser channel (4) being connected with a laser generator.
6. A laser welding ram device according to claim 1, characterized in that the ram (3) is provided with a mounting groove (12), and the collecting portion (9) is detachably connected to the ram (3) via the mounting groove (12).
7. The laser welding press head device according to claim 1, wherein the collecting portion (9) is of a hollow rectangular box-packed structure, the upper end and the lower end of the collecting portion (9) are of an opening structure, and a cavity in the middle of the collecting portion (9) forms a through hole (13) coaxially arranged with the laser channel (4).
8. A laser welding ram apparatus as claimed in claim 6, characterised in that the outside of the collecting portion (9) is provided with a connection slot (15) for connection with the mounting slot (12).
9. The laser welding press head device according to claim 1, wherein the periphery of the inner wall of the collecting portion (9) is provided with a plurality of inclined grooves (14), the opening direction of the inclined grooves (14) is inclined upwards, and the inclined grooves (14) are provided with a plurality of inclined grooves.
10. A laser welding ram device according to claim 1, characterized in that the upper end of the base (1) is arranged below the welding platform (2), and the ram (3) is arranged above the welding platform (2) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136127.0U CN219944935U (en) | 2023-01-13 | 2023-01-13 | Laser welding pressure head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136127.0U CN219944935U (en) | 2023-01-13 | 2023-01-13 | Laser welding pressure head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219944935U true CN219944935U (en) | 2023-11-03 |
Family
ID=88546494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320136127.0U Active CN219944935U (en) | 2023-01-13 | 2023-01-13 | Laser welding pressure head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219944935U (en) |
-
2023
- 2023-01-13 CN CN202320136127.0U patent/CN219944935U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |