CN109483056B - Square shell battery side plate laser welding equipment - Google Patents
Square shell battery side plate laser welding equipment Download PDFInfo
- Publication number
- CN109483056B CN109483056B CN201811622219.XA CN201811622219A CN109483056B CN 109483056 B CN109483056 B CN 109483056B CN 201811622219 A CN201811622219 A CN 201811622219A CN 109483056 B CN109483056 B CN 109483056B
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- Prior art keywords
- plate
- screw rod
- fixing
- battery pack
- supporting
- Prior art date
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- 238000003466 welding Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000003825 pressing Methods 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
Abstract
The invention discloses a laser welding device for a side plate of a square shell battery, which comprises a six-axis robot, a laser welding head arranged at the movable end of the six-axis robot, an optical fiber laser arranged around the six-axis robot and a plurality of battery box fixing units; the battery box fixing unit comprises a movable support, a supporting jig arranged on the movable support, side plate fixing mechanisms which are arranged on two sides of the supporting jig and used for fixing side plates on two sides, a first copper pressing plate arranged at one end of the supporting jig, an end plate fixing mechanism which is arranged at the other end of the supporting jig and used for fixing an end plate, and an elastic pressing plate mechanism which is arranged above the supporting jig and used for pressing the upper surface of the battery pack. The invention greatly improves the welding precision and the welding efficiency and realizes the full-automatic welding processing of the battery pack box body.
Description
[ field of technology ]
The invention belongs to the technical field of laser processing, and particularly relates to laser welding equipment for a side plate of a square-shell battery.
[ background Art ]
Under the current large environment of high-speed development of global industry, various countries have raised strategic requirements for environmental protection, new energy automobiles gradually replace fuel automobiles, various global companies are also accelerating research and renovating energy batteries, and it is believed that the fuel automobiles in the market will be completely replaced in the near future. The battery pack in the new energy automobile is an indispensable power source module, and at present, urban buses and urban logistics vehicles are developed towards the new energy automobile. At that time, each lithium battery manufacturer can put forward higher requirements on the production efficiency of products, and the robot laser welding procedure links play a role in importance, so that manual welding is replaced, the production efficiency is greatly improved, and the consistency of welded products is ensured.
The battery package generally has a box, and the electric core is all fixed in the box, and the battery box is by curb plate and end plate welded connection, because curb plate and end plate are vertical state, consequently be difficult to guarantee the required precision of welding in the location, and the welded joint is vertical distribution, and the soldered connection is difficult to operate.
[ invention ]
The invention mainly aims to provide the square-shell battery side plate laser welding equipment, so that the welding precision and the welding efficiency are greatly improved, and the full-automatic welding processing of the battery pack box body is realized.
The invention realizes the aim through the following technical scheme: the laser welding equipment for the side plates of the square-shell batteries comprises a six-axis robot, a laser welding head arranged at the movable end of the six-axis robot, an optical fiber laser arranged around the six-axis robot and a plurality of battery box body fixing units; the battery box fixing unit comprises a movable support, a supporting jig arranged on the movable support, side plate fixing mechanisms which are arranged on two sides of the supporting jig and used for fixing side plates on two sides, a first copper pressing plate arranged at one end of the supporting jig, an end plate fixing mechanism which is arranged at the other end of the supporting jig and used for fixing an end plate, and an elastic pressing plate mechanism which is arranged above the supporting jig and used for pressing the upper surface of the battery pack.
Further, the side plate fixing mechanism comprises a supporting seat, a second screw rod arranged on the supporting seat, a second copper pressing plate which is driven by the second screw rod to be close to or far away from the side plate, a first rotary hand wheel fixed on the second screw rod and a first locking clamp block for locking the second screw rod.
Further, a pressure sensor is arranged on one side surface of the first copper pressing plate, which abuts against the end plate of the battery pack box body.
Further, the end plate fixing mechanism comprises a first sliding rail, a first screw rod arranged between the first sliding rails, a first movable plate driven by the first screw rod to slide on the first sliding rail, a second locking clamping block arranged on the first screw rod and capable of locking the first screw rod to prevent the first screw rod from rotating, a third sliding rail arranged on the first movable plate, a third screw rod arranged between the third sliding rails, a second rotating hand wheel fixed at the end part of the third screw rod, a third locking clamping block capable of locking the third screw rod to prevent the third screw rod from rotating, a fourth movable plate driven by the third screw rod to slide on the third sliding rail, and a third copper pressing plate fixed at the front end of the fourth movable plate to support and hold the end plate of the box body.
Further, a pair of first positioning supporting mechanisms for supporting and positioning the internal frame of the battery pack are arranged on two sides of the first copper pressing plate.
Further, opening grooves are formed in four corner areas of the upper portion of the battery pack, and the first positioning support mechanism comprises a second sliding rail, a second movable plate arranged on the second sliding rail, a supporting positioning block fixed on the second movable plate and inserted into the opening grooves to support the internal frame of the battery pack, and a first mechanical elbow pushing rod for pushing the second movable plate to the battery pack and fixing the position of the second movable plate.
Further, two sides of the end plate fixing mechanism are provided with a pair of second positioning supporting mechanisms for supporting and positioning the upper parts of the side plates of the battery pack.
Further, a first L-shaped opening is formed in the upper portion of one end of the side plate, the second positioning and supporting mechanism comprises a third sliding rail, a third movable plate sliding on the third sliding rail, and a second mechanical elbow pushing rod pushing the third movable plate to the battery pack and fixing the position of the third movable plate, and the third movable plate is provided with a second L-shaped opening clamped in and propped against the inner wall of the first L-shaped opening.
Further, the elastic pressing plate mechanism comprises a hinge seat, a cover plate which is hinged to the hinge seat and can be turned over, and a plurality of elastic pressing heads which are distributed on the cover plate according to the shape of the battery pack and press the upper surface of the product.
Further, one side of the cover plate is provided with a buckling block, and the buckling block is provided with a buckling protrusion protruding outwards; the elastic pressing plate mechanism further comprises a buckling pull ring which is used for pressing the other side of the cover plate and buckling the buckling protrusion downwards.
Compared with the prior art, the square shell battery side plate laser welding equipment has the beneficial effects that: one end plate of the box body is blocked by the first copper pressing plate, and two end plates of the box body are pressed by the screw rod and the positioning plate matched with the screw rod locking clamp through the end plate fixing mechanism; the welding head is matched with a first positioning supporting mechanism and a second positioning supporting mechanism to fix the joint of the baffle plate and the side plate, stability of the position of the welding seam is guaranteed, a digital display meter of the pressure sensor is used for displaying the pressure applied by the product, when the pressure reaches the pressure required by the product, the cover plate is turned over, the upper surface of the product is pressed by the elastic pressure head, the welding areas of the four side plates are firmly pressed by the copper pressure plate, the six-axis robot is used for controlling the laser welding head to accurately weld the positions of the four welding seams, and welding of each station is completed; through setting up a plurality of battery box fixed unit, improved welded efficiency greatly, realized no intermittent type formula welding.
[ description of the drawings ]
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a battery case fixing unit according to an embodiment of the present invention;
fig. 3 is a schematic view showing a structure of an open state of a cover plate in a battery case fixing unit according to an embodiment of the present invention;
fig. 4 is a schematic view showing a partial structure of a battery case fixing unit according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an end plate fixing mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural view showing a closed state of a cover plate of a battery case fixing unit according to an embodiment of the present invention;
the figures represent the numbers:
100 square shell battery side plate laser welding equipment; 101 a first L-shaped opening;
1 six-axis robot; 2 an optical fiber laser; 3, a water chiller;
4 battery case fixing unit, 41 movable bracket, 42 supporting jig, 43 side plate fixing mechanism, 431 supporting seat, 432 second copper pressing plate, 433 first rotating hand wheel, 44 first copper pressing plate, 441 pressure sensor,
45 end plate fixing mechanism 451 first slide rail, 452 first movable plate, 453 first screw rod, 454 second locking clamp block, 455 third copper clamp plate, 456 second rotating hand wheel, 457 third slide rail, 458 third screw rod, 459 fourth movable plate, 46 elastic clamp plate mechanism, 461 hinge seat, 462 cover plate, 463 elastic press head, 464 press block, 465 press projection, 466 press pull ring, 47 first positioning support mechanism, 471 second slide rail, 472 second movable plate, 473 press positioning block, 474 first mechanical elbow push rod, 48 second positioning support mechanism, 481 third slide rail, 482 third movable plate, 483 second mechanical elbow push rod, 484 second L-shaped opening;
and 5, a laser welding head.
[ detailed description ] of the invention
Examples:
referring to fig. 1-6, the present embodiment is a square battery side plate laser welding apparatus 100, which includes a six-axis robot 1, a laser welding head 5 disposed at a movable end of the six-axis robot 1, an optical fiber laser 2 and a cold water machine 3 disposed around the six-axis robot 1, and a plurality of battery case fixing units 4.
The battery box body fixing unit 4 comprises a movable support 41, a supporting jig 42 arranged on the movable support 41, side plate fixing mechanisms 43 positioned on two sides of the supporting jig 42 and used for fixing side plates on two sides, a first copper pressing plate 44 positioned on one end of the supporting jig 42, an end plate fixing mechanism 45 positioned on the other end of the supporting jig 42 and used for fixing an end plate, and an elastic pressing plate mechanism 46 positioned above the supporting jig 42 and used for pressing the upper surface of the battery pack.
The support jig 42 can effectively and rapidly define the horizontal position of the battery pack case.
The side plate fixing mechanism 43 includes a support seat 431, a second screw rod (not shown) provided on the support seat 431, a second copper pressing plate 432 driven by the second screw rod to be close to or far from the side plate, a first rotary hand wheel 433 fixed on the second screw rod, and a first locking clamp block (not shown) locking the second screw rod. The side plate fixing mechanism 43 may be provided in plurality according to the length of the side plate of the battery pack.
A pressure sensor 441 is disposed on one side surface of the first copper pressing plate 44 that abuts against the end plate of the battery pack case. The device is used for monitoring the supporting pressure of the end plate fixing mechanism 45 on the battery pack end plate, guaranteeing the fixing force of the box welding plate, reducing the fit joint of the side plate and the end plate, and guaranteeing the welding quality.
The end plate fixing mechanism 45 comprises a first sliding rail 451, a first screw 453 arranged between the first sliding rails 451, a first movable plate 452 driven by the first screw 453 to slide on the first sliding rail 451, a second locking clamp 454 arranged on the first screw 453 and capable of locking the first screw 453 to prevent the first screw 453 from rotating, a third sliding rail 457 arranged on the first movable plate 452, a third screw 458 arranged between the third sliding rails 457, a second rotating hand wheel 456 fixed at the end of the third screw 458, a third locking clamp 457 capable of locking the third screw 458 to prevent the third screw 458 from rotating, a fourth movable plate 459 driven by the third screw 458 to slide on the third sliding rail 457, and a third copper pressing plate 455 fixed at the front end of the fourth movable plate 459 and propping against the end plate of the box body. The third copper pressure plate 455 abuts against the end plate of the battery pack case to position and hold it.
The two sides of the first copper pressing plate 44 are provided with a pair of first positioning supporting mechanisms 47 for supporting and positioning the internal frame of the battery pack, the four corner areas of the upper part of the battery pack are provided with opening grooves, the first positioning supporting mechanisms 47 comprise a second sliding rail 471, a second movable plate 472 arranged on the second sliding rail 471, a supporting and positioning block 473 fixed on the second movable plate 472 and inserted into the opening grooves for supporting and positioning the internal frame of the battery pack, and a first mechanical elbow push rod 474 for pushing the second movable plate 472 towards the battery pack and fixing the position of the second movable plate 472. The position of the second movable plate 472 is fixed through the first mechanical elbow push rod 474, and the supporting and positioning block 473 on the second movable plate 472 supports and holds the upper part of the battery pack, so as to prevent the battery pack from tilting up and down, ensure that the end part of the battery pack is positioned on a vertical plane and can be tightly spliced with the side plate; the battery pack box can be simply, quickly and effectively positioned at one end of the whole battery pack box body and is strongly supported.
The two sides of the end plate fixing mechanism 45 are provided with a pair of second positioning and supporting mechanisms 48 which are used for propping and positioning the upper parts of the side plates of the battery pack, a first L-shaped opening 101 is formed at the upper part of one end of each side plate, each second positioning and supporting mechanism 48 comprises a third sliding rail 481, a third movable plate 482 sliding on the third sliding rail 481, and a second mechanical elbow push rod 483 which is used for pushing the third movable plate 482 to the battery pack and fixing the position of the third movable plate 482, and a second L-shaped opening 484 which is clamped into the inner wall of the first L-shaped opening 101 is arranged on the third movable plate 482. The position of the third movable plate 482 is fixed through the second mechanical elbow push rod 483, and the second L-shaped opening 484 on the third movable plate 482 is matched with the first L-shaped opening 101 on the side plate to be propped, so that the pressure effect on the end part of the box body can be effectively kept, the position stability of the side plate and the end plate in the welding process and the tightness of the splice seam are ensured, and the welding quality is greatly improved.
The elastic pressing plate mechanism 46 comprises a hinge seat 461, a cover plate 462 hinged on the hinge seat 461 and capable of being turned over, a plurality of elastic pressing heads 463 distributed on the cover plate 462 according to the shape of the battery pack and used for pressing the upper surface of a product, a buckling block 464 is arranged on one side of the cover plate 462, a buckling protrusion 465 protruding outwards is arranged on the buckling block 464, and the elastic pressing plate mechanism 46 further comprises a buckling pull ring 466 used for pressing the other side of the cover plate 462 and buckling the buckling protrusion 465 downwards.
In the embodiment, when the square-shell battery side plate laser welding equipment 100 is used for welding, a product is manually placed on a supporting jig 42, one end plate of a box body is blocked by a first copper pressing plate 44, and two end plates of the box body are pressed by a screw rod and a positioning plate in cooperation with screw rod locking clamps through an end plate fixing mechanism 45; the joints of the baffle plates and the side plates are fixed by matching with the first positioning supporting mechanism 47 and the second positioning supporting mechanism 48, stability of the positions of welding seams is guaranteed, the digital display meter of the pressure sensor 441 displays the pressure applied by the product, when the pressure reaches the pressure required by the product, the cover plate 462 is turned over and tightly presses the upper surface of the product through the elastic pressure head 463, the welding areas of the four side plates are firmly pressed through the copper pressure plates, the six-axis robot controls the laser welding head to accurately weld the positions of the four welding seams, and welding of each station is completed; by arranging a plurality of battery box fixing units 4, the welding efficiency can be greatly improved, and non-intermittent welding is realized.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (4)
1. A square shell battery side plate laser welding device is characterized in that: the device comprises a six-axis robot, a laser welding head arranged at the movable end of the six-axis robot, an optical fiber laser arranged around the six-axis robot and a plurality of battery box body fixing units; the battery box body fixing unit comprises a movable bracket, a supporting jig arranged on the movable bracket, side plate fixing mechanisms positioned on two sides of the supporting jig and used for fixing side plates on two sides, a first copper pressing plate positioned at one end of the supporting jig, an end plate fixing mechanism positioned at the other end of the supporting jig and used for fixing an end plate, and an elastic pressing plate mechanism positioned above the supporting jig and used for pressing the upper surface of the battery pack; the side plate fixing mechanism comprises a supporting seat, a second screw rod arranged on the supporting seat, a second copper pressing plate which is driven by the second screw rod to be close to or far away from the side plate, a first rotary hand wheel fixed on the second screw rod and a first locking clamp block for locking the second screw rod; the end plate fixing mechanism comprises a first sliding rail, a first screw rod arranged between the first sliding rails, a first movable plate driven by the first screw rod to slide on the first sliding rail, a second locking clamp block arranged on the first screw rod and capable of locking the first screw rod to prevent the first screw rod from rotating, a third sliding rail arranged on the first movable plate, a third screw rod arranged between the third sliding rails, a second rotating hand wheel fixed at the end part of the third screw rod, a third locking clamp block capable of locking the third screw rod to prevent the third screw rod from rotating, a fourth movable plate driven by the third screw rod to slide on the third sliding rail, and a third copper pressing plate fixed at the front end of the fourth movable plate and propping against the end plate of the box body; a pair of first positioning supporting mechanisms for supporting and positioning the internal frame of the battery pack are arranged on two sides of the first copper pressing plate; the upper four corner areas of the battery pack are provided with opening grooves, and the first positioning support mechanism comprises a second sliding rail, a second movable plate arranged on the second sliding rail, a supporting positioning block fixed on the second movable plate and inserted into the opening grooves to support the internal frame of the battery pack, and a first mechanical elbow pushing rod for pushing the second movable plate towards the battery pack and fixing the position of the second movable plate; two sides of the end plate fixing mechanism are provided with a pair of second positioning and supporting mechanisms for propping and positioning the upper parts of the side plates of the battery pack; the upper part of one end of the side plate is provided with a first L-shaped opening, the second positioning and supporting mechanism comprises a fourth sliding rail, a third movable plate sliding on the fourth sliding rail and a second mechanical elbow push rod pushing the third movable plate to the battery pack and fixing the position of the third movable plate, and the third movable plate is provided with a second L-shaped opening clamped in and propped against the inner wall of the first L-shaped opening.
2. The square-case battery side plate laser welding apparatus according to claim 1, wherein: and a pressure sensor is arranged on one side surface of the first copper pressing plate, which abuts against the end plate of the battery pack box body.
3. The square-case battery side plate laser welding apparatus according to claim 1, wherein: the elastic pressing plate mechanism comprises a hinge seat, a cover plate which is hinged on the hinge seat and can be turned over, and a plurality of elastic pressing heads which are distributed on the cover plate according to the shape of the battery pack and press the upper surface of the product.
4. A square-case battery side plate laser welding apparatus as set forth in claim 3, wherein: one side of the cover plate is provided with a buckling block, and the buckling block is provided with a buckling protrusion protruding outwards; the elastic pressing plate mechanism further comprises a buckling pull ring which is used for pressing the other side of the cover plate and buckling the buckling protrusion downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622219.XA CN109483056B (en) | 2018-12-28 | 2018-12-28 | Square shell battery side plate laser welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811622219.XA CN109483056B (en) | 2018-12-28 | 2018-12-28 | Square shell battery side plate laser welding equipment |
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| CN109483056A CN109483056A (en) | 2019-03-19 |
| CN109483056B true CN109483056B (en) | 2024-03-22 |
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| CN201811622219.XA Active CN109483056B (en) | 2018-12-28 | 2018-12-28 | Square shell battery side plate laser welding equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640319B (en) * | 2019-08-21 | 2021-08-06 | 合肥国轩高科动力能源有限公司 | Laser welding device for side end plate of square lithium battery module |
| CN114309942B (en) * | 2022-01-19 | 2023-09-05 | 惠博新材料股份有限公司 | Galvanized sheet laser stitch welding device |
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| CN109483056A (en) | 2019-03-19 |
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