CN114914637A - Laser welding machine for processing full-lug large cylindrical battery - Google Patents

Laser welding machine for processing full-lug large cylindrical battery Download PDF

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Publication number
CN114914637A
CN114914637A CN202210566390.3A CN202210566390A CN114914637A CN 114914637 A CN114914637 A CN 114914637A CN 202210566390 A CN202210566390 A CN 202210566390A CN 114914637 A CN114914637 A CN 114914637A
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CN
China
Prior art keywords
seat
welding
fixed
sliding
lifting
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Granted
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CN202210566390.3A
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Chinese (zh)
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CN114914637B (en
Inventor
王林
尹小虎
梁进胜
黎培标
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Shenzhen Zhongji Automation Co Ltd
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Shenzhen Zhongji Automation Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/531Electrode connections inside a battery casing
    • H01M50/536Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to the technical field of cylindrical battery processing, in particular to a laser welding machine for processing a full-lug large cylindrical battery, wherein two welding seat assemblies are symmetrically arranged on a laser welding manipulator; the welding seat assembly comprises a welding base connected to the main support, a connecting seat connected to the welding base and a sliding seat connected to the connecting seat in a sliding manner; a push-out cylinder capable of pushing the sliding seat to slide on the connecting seat is fixed on the connecting seat; the sliding seat is rotatably connected with a welding pressure head; one of the welding seat assemblies is an active welding seat; the other welding seat component is a driven welding seat; a sliding seat on the active welding seat is connected with a motor; the output end of the motor is connected with a welding pressure head on the active welding seat. When the battery welding device is used, after the battery is rotated for one circle, the welding seam in the shape of a ring at the welding position improves the welding quality.

Description

Laser welding machine for processing full-lug large cylindrical battery
Technical Field
The invention relates to the technical field of full-lug large-cylinder battery processing, in particular to a laser welding machine for full-lug large-cylinder battery processing.
Background
When each of two poles of a full-lug large cylindrical battery applied at present is welded, the battery needs to be rotated, then a welding machine is close to one end of the battery, and a cover is welded and fixed in the uniform rotation process of the battery; during welding, the battery is placed into the rotatable jig, then the jig is manually pushed to move at a constant speed, and the welding machine is positioned and then welded into a circular ring-shaped weld; this kind of welding mode, intensity of labour is big, and because the manual work rotates the tool, the tool rotational speed is unstable moreover for welding quality is unstable.
Disclosure of Invention
The invention aims to provide a laser welding machine for processing a full-lug large cylindrical battery, aiming at the defects and shortcomings of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to a laser welding machine for processing a full-lug large cylindrical battery, which comprises a main bracket and a laser welding manipulator fixed on the main bracket; two welding seat assemblies are symmetrically arranged on the laser welding manipulator; the welding seat assembly comprises a welding base connected to the main support, a connecting seat connected to the welding base and a sliding seat connected to the connecting seat in a sliding manner; a push-out cylinder capable of pushing the sliding seat to slide on the connecting seat is fixed on the connecting seat; the sliding seat is rotatably connected with a welding pressure head;
one of the welding seat assemblies is an active welding seat; the other welding seat component is a driven welding seat; a sliding seat on the active welding seat is connected with a motor; and the output end of the motor is connected with a welding pressure head on the active welding seat.
Furthermore, the laser welding manipulator comprises a connecting plate, a laser welding device, a manipulator upright post fixed on the main support and a lifting module connected to the manipulator upright post; a first rotating module is connected between the sliding table of the lifting module and the connecting plate; and a second rotating module is connected between the laser welding device and the connecting plate.
Furthermore, a battery supporting seat is connected to the connecting seat; the battery supporting seat comprises an adjusting guide rail fixed on the connecting seat and a sliding plate connected on the adjusting guide rail in a sliding manner; the top of the sliding plate is rotatably connected with two rollers; the side surface of the sliding plate is rotatably connected with a screw which can be locked and fixed on the adjusting guide rail.
Furthermore, the connecting seat is connected with a fixed bracket; a pressing component for pressing the battery on the battery supporting seat is fixed on the fixed support; the pressing assembly comprises a lifting support, a lifting push-out cylinder with one end fixed on the fixed support and a lifting guide rail fixed on the lifting support; the lifting guide rail is connected to the fixed bracket in a sliding manner; the other end of the lifting pushing cylinder is fixed on the lifting bracket; a pressure wheel bracket is fixed on the lifting bracket; the pinch roller bracket is rotatably connected with a lower pinch roller.
Furthermore, a dust removal pipe is fixed on the lifting support.
Furthermore, the connecting seat comprises a lower wedge block and an upper wedge block, wherein one end of the lower wedge block is fixed on the welding base, and the upper wedge block is fixed on the sliding seat; the wedge-shaped surface of the upper wedge-shaped block is connected with the wedge-shaped surface of the lower wedge-shaped block in a sliding manner; the lower wedge block is rotatably connected with an adjusting bolt; and after the adjusting bolt rotates, the wedge-shaped surface of the upper wedge-shaped block can slide on the wedge-shaped surface of the lower wedge-shaped block.
After adopting the structure, the invention has the beneficial effects that: according to the laser welding machine for processing the full-lug large cylindrical battery, when the laser welding machine is used, the battery is conveyed between the two welding seat assemblies through an external manipulator; then, pushing cylinders on the two welding seat assemblies are started, and the two pushing cylinders are tightly pressed between the two welding pressure heads through the two ends of the battery; after the motor drives the welding pressure head to rotate, the battery rotates automatically, and a welding device of the laser welding manipulator is always positioned at the edge position of the cover; after the battery is rotated for a circle, the annular welding seam at the welding position improves the welding quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of a laser welding robot;
FIG. 3 is a first perspective view of an active solder mount;
FIG. 4 is a second perspective view of the active solder mount;
FIG. 5 is a schematic view of a driven soldering nest;
FIG. 6 is a schematic view of the connecting socket; (ii) a
Description of reference numerals:
A. a laser welding manipulator; a1, manipulator upright post; a2, connecting plates; a3, a first rotating module;
a4, a lifting module; a5, a second rotating module; a6, laser welding device;
B. welding a seat assembly; b1, welding a base; b2, a connecting seat; b21, an upper wedge block;
b22, a lower wedge block; b23, adjusting bolts; b3, a battery supporting seat; b31, a roller;
b32, adjusting guide rails; b33, a sliding plate; b4, welding a pressure head; b5, a motor; b6, pushing out the cylinder;
b7, a sliding seat; C. a main support;
1. a lower pinch roller; 2. a pinch roller bracket; 3. a dust removal pipe; 4. fixing a bracket; 5. a lifting support;
6. a lifting guide rail; 7. and lifting and pushing out the cylinder.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 6, the laser welding machine for processing a full-tab large cylindrical battery according to the present invention comprises a main support C and a laser welding manipulator a fixed on the main support C; two welding seat assemblies B are symmetrically arranged on the laser welding manipulator A; the welding seat assembly B comprises a welding seat B1 connected to the main bracket C, a connecting seat B2 connected to the welding seat B1 and a sliding seat B7 connected to the connecting seat B2 in a sliding mode; a push-out air cylinder B6 capable of pushing the sliding seat B7 to slide on the connecting seat B2 is fixed on the connecting seat B2; the sliding seat B7 is rotatably connected with a welding pressure head B4;
one welding seat component B is an active welding seat; the other welding seat component B is a driven welding seat; a sliding seat B7 on the active welding seat is connected with a motor B5; the output end of the motor B5 is connected with a welding pressure head B4 on the active welding seat;
the battery is conveyed between the two welding seat assemblies B through an external manipulator; then the push-out air cylinder B6 on the two welding seat assemblies B is started, and the two ends of the battery are pressed between the two welding pressure heads B4; after the motor B5 drives the welding pressure head B4 to rotate, the battery rotates automatically, and a welder of the laser welding manipulator A is always positioned at the edge position of the closing cover; after the battery is rotated for a circle, the annular welding seam at the welding position improves the welding quality.
As a preferred mode of the present invention, the laser welding robot a includes a connecting plate a2, a laser welder a6, a robot upright a1 fixed on the main support C, and a lifting module a4 connected to the robot upright a 1; a first rotating module A3 is connected between the sliding table of the lifting module A4 and the connecting plate A2; a second rotating module A5 is connected between the laser welder A6 and the connecting plate A2; the laser welder a6 is not essential to the prior art and therefore will not be described in detail; the first rotation module A3 and the second rotation module a5 are not described in detail since they are not essential to the prior art; the lifting module A4 can drive the first rotating module A3 to do lifting movement, the first rotating module A3 drives the second rotating module A5 to rotate, and the second rotating module A5 drives the laser welder A6 to rotate; the three power elements of the lifting module A4, the first rotating module A3 and the second rotating module A5 are matched to move, so that the welding head of the laser welder A6 can move in space; the welding position of the welding head can be adjusted according to the welding position required by the battery.
As a preferable mode of the present invention, a battery supporting seat B3 is connected to the connecting seat B2; the battery supporting seat B3 comprises an adjusting guide rail B32 fixed on the connecting seat B2 and a sliding plate B33 connected on the adjusting guide rail B32 in a sliding way; the top of the sliding plate B33 is rotatably connected with two rollers B31; a screw which can be locked and fixed on the adjusting guide rail B32 is rotatably connected to the side surface of the sliding plate B33;
because the height of the battery can be positioned by utilizing the support of the roller B31 in the welding process, the axis of the welding pressure head B4 and the axis of the battery must be coaxial in order to ensure the welding quality; therefore, after the screws of batteries with different specifications are loosened, the sliding plate B33 slides on the adjusting guide rail B32 to adjust the height of the roller B31, so that the axis of the battery is still coaxial with the axis of the welding pressure head B4 after the battery is placed on the two battery supporting seats B3.
As a preferable mode of the present invention, the connecting seat B2 is connected with a fixed bracket 4; a lower pressing component for pressing the battery on the battery supporting seat B3 is fixed on the fixed bracket 4; the pressing assembly comprises a lifting support 5, a lifting push-out cylinder 7 with one end fixed on the fixed support 4 and a lifting guide rail 6 fixed on the lifting support 5; the lifting guide rail 6 is connected to the fixed bracket 4 in a sliding manner; the other end of the lifting pushing cylinder 7 is fixed on the lifting bracket 5; a pinch roller bracket 2 is fixed on the lifting bracket 5; the pinch roller bracket 2 is rotatably connected with a lower pinch roller 1; after the batteries are placed on the two rollers B31 on the same sliding plate B33, the lifting push-out cylinder 7 can drive the lifting support 5 to do lifting motion along the length direction of the lifting guide rail 6 after being started, and the lower pressing wheel 1 presses the batteries onto the roller B31, so that the two welding pressing heads B4 can be aligned with the batteries.
As a preferred mode of the present invention, a dust removal pipe 3 is fixed to the lifting bracket 5; the dust removal pipe is used for absorbing dry smoke and dust generated in the welding process.
As a preferable mode of the present invention, the connecting seat B2 includes a lower wedge B22 having one end fixed to the welding seat B1 and an upper wedge B21 fixed to the sliding seat B7; the wedge surface of the upper wedge block B21 is connected with the wedge surface of the lower wedge block B22 in a sliding way; the lower wedge block B22 is rotatably connected with an adjusting bolt B23; after the adjusting bolt B23 is rotated, the wedge-shaped surface of the upper wedge-shaped block B21 can slide on the wedge-shaped surface of the lower wedge-shaped block B22;
the bottom of the upper wedge block B21 is provided with a fixing strip; the fixing strip is provided with a nut which can slide up and down along the fixing strip; the adjusting bolt B23 is in threaded connection with the nut; after the adjusting bolt B23 is rotated, the upper wedge block B21 can slide along the wedge-shaped surface of the lower wedge block B22, the height of the upper wedge block B21 is adjusted, and the coaxiality of the battery cell and the welding pressure head B4 is finely adjusted.
In use of the present invention, the battery is transported between the two soldering terminal assemblies by an external robot; after the batteries are placed on the two rollers on the same sliding plate, the lifting push-out cylinder can drive the lifting support to do lifting motion along the length direction of the lifting guide rail after being started, and the lower pressing wheel tightly presses the batteries on the rollers, so that the two welding pressing heads can be aligned to the batteries; after the adjusting bolt is rotated, the upper wedge-shaped block can slide along the wedge-shaped surface of the lower wedge-shaped block, the height of the upper wedge-shaped block is adjusted, and the coaxiality of the electric core and the welding pressure head is finely adjusted; then, pushing cylinders on the two welding seat assemblies are started, and the two pushing cylinders are tightly pressed between the two welding pressure heads through the two ends of the battery; after the motor drives the welding pressure head to rotate, the battery rotates, and a welding head of the laser welding device is positioned at the edge position of the cover through the matching motion of three power elements, namely the lifting module, the first rotating module and the second rotating module; after the battery is rotated for a circle, the annular welding seam at the welding position improves the welding quality.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims (10)

1. The utility model provides a laser-beam welding machine of big cylinder battery processing usefulness of full utmost point ear which characterized in that: the device comprises a main bracket (C) and a laser welding manipulator (A) fixed on the main bracket (C); two welding seat assemblies (B) are symmetrically arranged on the laser welding manipulator (A); the welding seat assembly (B) comprises a welding seat (B1) connected to the main bracket (C), a connecting seat (B2) connected to the welding seat (B1) and a sliding seat (B7) connected to the connecting seat (B2) in a sliding mode; a pushing cylinder (B6) capable of pushing the sliding seat (B7) to slide on the connecting seat (B2) is fixed on the connecting seat (B2); the sliding seat (B7) is rotatably connected with a welding pressure head (B4);
one of the welding seat assemblies (B) is an active welding seat; the other welding seat component (B) is a driven welding seat; a sliding seat (B7) on the active welding seat is connected with a motor (B5); the output end of the motor (B5) is connected with a welding pressure head (B4) on the active welding seat.
2. The laser welding machine for processing the full-lug large cylindrical battery according to claim 1, characterized in that: the laser welding manipulator (A) comprises a connecting plate (A2), a laser welder (A6), a manipulator upright post (A1) fixed on the main support (C) and a lifting module (A4) connected to the manipulator upright post (A1); a first rotating module (A3) is connected between the sliding table of the lifting module (A4) and the connecting plate (A2); a second rotary module (A5) is connected between the laser welder (A6) and the connecting plate (A2).
3. The laser welding machine for processing the full-lug large cylindrical battery according to claim 1, characterized in that: the connecting seat (B2) is connected with a battery supporting seat (B3); the battery supporting seat (B3) comprises an adjusting guide rail (B32) fixed on the connecting seat (B2) and a sliding plate (B33) connected on the adjusting guide rail (B32) in a sliding way; the top of the sliding plate (B33) is rotatably connected with two rollers (B31); the side surface of the sliding plate (B33) is rotatably connected with a screw which can be locked and fixed on the adjusting guide rail (B32).
4. The laser welding machine for processing the full-lug large cylindrical battery according to claim 3, characterized in that: the connecting seat (B2) is connected with a fixed bracket (4); and a pressing component for pressing the battery on the battery supporting seat (B3) is fixed on the fixed support (4).
5. The laser welding machine for processing the full-lug large cylindrical battery according to claim 4, characterized in that: the pressing component comprises a lifting support (5), a lifting push-out cylinder (7) with one end fixed on the fixed support (4) and a lifting guide rail (6) fixed on the lifting support (5).
6. The laser welding machine for processing the full-lug large cylindrical battery according to claim 5, characterized in that: the lifting guide rail (6) is connected to the fixed bracket (4) in a sliding manner; the other end of the lifting pushing cylinder (7) is fixed on the lifting bracket (5); a pinch roller bracket (2) is fixed on the lifting bracket (5); the pinch roller bracket (2) is rotatably connected with a lower pinch roller (1).
7. The laser welding machine for processing the full-lug large cylindrical battery according to claim 5, characterized in that: and the lifting support (5) is fixedly provided with a dust removal pipe (3).
8. The laser welding machine for processing the full-lug large cylindrical battery according to claim 1, characterized in that: the connecting seat (B2) comprises a lower wedge block (B22) with one end fixed on the welding base (B1) and an upper wedge block (B21) fixed on the sliding seat (B7).
9. The laser welding machine for processing the full-lug large cylindrical battery according to claim 8, characterized in that: the wedge-shaped surface of the upper wedge-shaped block (B21) is connected with the wedge-shaped surface of the lower wedge-shaped block (B22) in a sliding way; an adjusting bolt (B23) is rotatably connected to the lower wedge block (B22).
10. The laser welding machine for processing the full-lug large cylindrical battery according to claim 9, characterized in that: the adjusting bolt (B23) can make the wedge surface of the upper wedge block (B21) slide on the wedge surface of the lower wedge block (B22) after being rotated.
CN202210566390.3A 2022-05-24 2022-05-24 Laser welding machine for processing full-lug large-cylinder battery Active CN114914637B (en)

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CN202210566390.3A CN114914637B (en) 2022-05-24 2022-05-24 Laser welding machine for processing full-lug large-cylinder battery

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CN202210566390.3A CN114914637B (en) 2022-05-24 2022-05-24 Laser welding machine for processing full-lug large-cylinder battery

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CN114914637B CN114914637B (en) 2024-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115519248A (en) * 2022-10-21 2022-12-27 航天锂电科技(江苏)有限公司 Welding device for large cylindrical battery without electrode lug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210081146U (en) * 2018-12-18 2020-02-18 中船重工黄冈水中装备动力有限公司 Laser welding equipment for battery core tab and pole piece
JP2020038814A (en) * 2018-09-06 2020-03-12 本田技研工業株式会社 Method and apparatus for manufacturing bonded separator
CN213033889U (en) * 2021-01-18 2021-04-23 山东航天威能新能源动力系统有限公司 Laser welding device of lithium ion power battery aluminum bar

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020038814A (en) * 2018-09-06 2020-03-12 本田技研工業株式会社 Method and apparatus for manufacturing bonded separator
CN210081146U (en) * 2018-12-18 2020-02-18 中船重工黄冈水中装备动力有限公司 Laser welding equipment for battery core tab and pole piece
CN213033889U (en) * 2021-01-18 2021-04-23 山东航天威能新能源动力系统有限公司 Laser welding device of lithium ion power battery aluminum bar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115519248A (en) * 2022-10-21 2022-12-27 航天锂电科技(江苏)有限公司 Welding device for large cylindrical battery without electrode lug
CN115519248B (en) * 2022-10-21 2023-09-26 航天锂电科技(江苏)有限公司 Large cylindrical battery welding device without electrode lug

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