CN115008101A - Welding equipment for lithium battery pack unit - Google Patents
Welding equipment for lithium battery pack unit Download PDFInfo
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- CN115008101A CN115008101A CN202210685246.1A CN202210685246A CN115008101A CN 115008101 A CN115008101 A CN 115008101A CN 202210685246 A CN202210685246 A CN 202210685246A CN 115008101 A CN115008101 A CN 115008101A
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- 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
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- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the field of lithium battery assembly and processing, in particular to lithium battery pack unit welding equipment which comprises an operation bottom plate, wherein four vertical positioning rods are fixedly arranged at the upper end of the operation bottom plate along four rectangular corners, an installation frame is arranged at the upper end of the operation bottom plate and is in sliding connection with the vertical positioning rods along the vertical direction, a spot welding device is arranged on the installation frame, a battery clamping unit is arranged between the operation bottom plate and the installation frame, a material conveying device is arranged on the rear side of the battery clamping unit, and a cutting mechanism is arranged between the material conveying device and the battery clamping unit, so that the lithium battery pack unit welding equipment can fix each single lithium battery and accurately weld the lithium batteries.
Description
Technical Field
The invention relates to the field of lithium battery assembly and processing, in particular to a lithium battery pack unit welding device.
Background
The lithium battery is a battery that often uses in life, has extensive application on domestic appliance and new forms of energy, but because prior art's restriction and because of the consideration of security, the lithium battery can not make the state of single bulky, and in the use of reality, under many scenes, single lithium battery can not satisfy the requirement of electric storage capacity and voltage, consequently need use battery welding equipment to weld a plurality of monomer lithium batteries into a unit in order to satisfy the requirement of electric storage capacity and voltage.
Because most monomer lithium cell's shape all is cylindrical, just so make the in-process at the welding lithium cell, the position of lithium cell often is difficult to fix, in common welding, when the quantity of lithium cell is many, often fix the position of a plurality of lithium cells through the fixed cover of installation in the both sides of battery, it is too time-consuming and laboursome to install fixed cover in the in-process of installing single lithium cell with the lithium cell alignment one by one, and if directly weld single lithium cell with fixed cover direct use spot welding device, lead to the welded position to be difficult to adjust well easily, cause the holistic regularity of group battery relatively poor, in-process in follow-up installation adaptation the improper phenomenon appears.
Therefore, it is necessary to provide a welding apparatus for a lithium battery pack unit to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the lithium battery pack unit welding equipment which can fix each single lithium battery and can accurately weld the lithium batteries.
The invention provides a lithium battery pack unit welding device which comprises an operation bottom plate, wherein four vertical positioning rods are fixedly arranged at the upper end of the operation bottom plate along four rectangular corners, an installation frame is arranged at the upper end of the operation bottom plate, and the installation frame is connected with the vertical positioning rods in a sliding mode along the vertical direction.
The battery clamping unit comprises four clamping fixing plates, middle mounting blocks, clamping rods, flexible clamping plates and a return spring, the operating bottom plate is provided with sliding grooves extending along the respective direction along the front direction, the rear direction, the left direction and the right direction, the four clamping fixing plates are respectively in sliding connection with the sliding grooves in all directions, a plurality of middle mounting blocks fixedly mounted with the clamping fixing plates are equidistantly distributed on the clamping fixing plates along the horizontal direction, the two sides of each middle mounting block are hinged with the clamping rods, the clamping rods on the same side are distributed at the upper end and the lower end of each middle mounting block, a limiting block fixedly connected with the middle mounting blocks is arranged between the clamping rods on the upper end, and a spring mounting plate is fixedly mounted between the clamping rods on the same side of each middle mounting block, fixed mounting has reset spring between the spring mounting panel of middle installation piece both sides, on same installation piece the end of supporting rod articulates jointly has flexible grip block, the lower extreme of operation bottom plate is provided with the locking mechanical system who is used for centre gripping fixed plate simultaneous movement and is used for locking lazytongs.
Preferably, the synchronizing mechanism comprises a synchronizing gear and a synchronizing rack, the synchronizing gear is rotatably connected to the lower end of the operating bottom plate and is located in the middle of the four clamping fixing plates, four synchronizing racks respectively pointing to the front direction, the rear direction, the left direction and the right direction are circumferentially distributed on the outer side of the synchronizing gear, the synchronizing gear is meshed with the synchronizing racks, and the synchronizing racks are fixedly connected with the clamping fixing plates pointing to the synchronizing racks.
Preferably, locking mechanical system includes locking pinion rack, locking rack pole, roof pressure spring beam and fixed link, fixed link pole and one of them synchronous rack fixed connection, fixed link pole is the U-shaped pole, the locking rack pole with fixed link pole is along sliding connection on the horizontal direction, the locking rack pole with fixedly connected with roof pressure spring beam between the fixed link pole, the locking pinion rack with the terminal interlock each other and the locking pinion rack fixed mounting of locking rack pole are in the lower extreme of operation bottom plate, still fixedly connected with poker rod on the locking rack pole, poker rod stretches out from the side of operation bottom plate.
Preferably, the spot welding device comprises a transverse adjusting screw, a longitudinal adjusting screw, a transverse sliding frame, a longitudinal sliding block and a spot welding head, wherein a plurality of transverse sliding frames are slidably distributed on the mounting frame along the left and right directions, the transverse adjusting screw is rotatably connected with the transverse sliding frame, a plurality of groups of threads with opposite rotation directions are distributed on the transverse adjusting screw along the mirror image of the middle position, the thread position is in threaded connection with the transverse sliding frame, the thread pitch of the thread position is increased along with the distance from the middle position of the transverse adjusting screw to the far direction in an equal proportion, a plurality of longitudinal sliding blocks are slidably connected on the transverse sliding frame along the front and back directions, the longitudinal adjusting screw is rotatably connected with the transverse sliding frame, a plurality of groups of threads with opposite rotation directions are distributed on the longitudinal adjusting screw along the mirror image of the middle position, and the thread position is in threaded connection with the longitudinal sliding block, and the screw pitch of the thread increases proportionally with the distance from the middle of the longitudinal adjusting screw rod from near to far, and the lower end of the longitudinal sliding block is fixedly connected with a spot welding head.
Preferably, an internal jacking mechanism is fixedly installed at the lower end of the longitudinal sliding block except for the front row and the right row, the internal jacking mechanism comprises an installation barrel, an inner sliding rod, a triggering disc, an upper moving rack, a lower moving rack, a middle gear, an inner jacking block and an outer expanding plate, the installation barrel is fixedly installed at the lower end of the longitudinal sliding block, the installation barrel is a square barrel and is hollow, a rack installation groove is formed in the outer wall of the upper end of the installation barrel, the upper moving rack and the lower moving rack are respectively in sliding connection with the two sides of the rack installation groove in the vertical direction, the middle of the upper moving rack and the lower moving rack is provided with the middle gear, the middle gear is rotatably erected in the middle of the rack installation groove, the triggering disc is slidably sleeved on the outer side of the installation barrel and is fixedly connected with the upper moving rack, interior slide bar in the inboard of an installation section of thick bamboo and with an installation section of thick bamboo sliding connection, interior slide bar with move down rack fixed connection, kicking block in the lower extreme fixedly connected with of interior slide bar, interior kicking block circumference distributes and has four just the lateral surface from the top down of interior kicking block slopes to interior slide bar gradually, radial groove has been seted up to the side of an installation section of thick bamboo, sliding connection has outer expand the board just in the radial groove outer expand the board be located the inside one side of an installation section of thick bamboo with interior kicking block sliding lock connects.
Preferably, the rear side of battery centre gripping unit is provided with feeding device, feeding device includes vertical slide bar, supporting seat, lower conveying roller, goes up conveying roller, compression spring pole, vertical slide bar divide into two rows of fixed mounting in the upper end of operation bottom plate, the supporting seat along vertical direction with vertical slide bar sliding connection, the supporting seat with fixedly connected with compression spring pole between the operation bottom plate, the rotation is connected with lower conveying roller between the relative supporting seat in left and right sides, the upper end of operation bottom plate is equipped with the upper conveying roller through the transfer line rotating turret.
Preferably, a dividing mechanism is arranged between the material conveying device and the battery clamping unit and comprises a dividing gear, a dividing rack, a dividing cutter and a dividing frame, the dividing frame is fixedly arranged at the upper end of the operating base plate, the dividing rack is in sliding connection with the dividing frame in the vertical direction, the dividing rack is arranged in two relative positions, the dividing gear is meshed between the dividing racks and is in rotating connection with the dividing frame, the dividing rack is fixedly connected with the dividing cutter and the dividing cutter are mutually staggered, the upper end of one dividing rack is fixedly connected with the dividing spring rod between the dividing frames, the upper end of the other dividing rack penetrates through the upper end of the dividing frame and is fixedly connected with a pre-ejector rod, and a jacking plate corresponding to the pre-ejector rod is fixedly arranged on the mounting frame.
Compared with the related art, the lithium battery pack unit welding equipment provided by the invention has the following beneficial effects:
1. according to the invention, the battery clamping units are pushed to enable the flexible clamping plates and the outer side surfaces of the lithium batteries to be mutually attached, and the synchronous mechanism enables the movement of the battery clamping units in four directions to be consistent in the process, so that a plurality of lithium batteries can be fixed in one area, and the batteries are clamped through the flexible clamping plates, so that the batteries can be well clamped even when the diameters of the batteries are changed.
2. In the process of adjusting the spot welding device, the transverse sliding frame is respectively moved along the left direction and the right direction by rotating the transverse adjusting screw rod and the longitudinal adjusting screw rod, so that the longitudinal sliding block is moved along the front-back direction, the position of the spot welding head is adjusted, the position of the spot welding head is aligned to the bottom surface of the lithium battery, and the lithium battery is welded more accurately.
3. Under the combined action of the internal jacking mechanism, the positions of the lithium batteries are accurately corrected, so that the dislocation of the lithium batteries in the arrangement process is counteracted.
Drawings
Fig. 1 is a schematic diagram of the general structure of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
FIG. 3 is a schematic view of another embodiment of the present invention.
Fig. 4 is a schematic view of a part of the enlarged structure at B in fig. 3.
Fig. 5 is a bottom view of the present invention.
Fig. 6 is a partially enlarged structural view at C in fig. 5.
Fig. 7 is a schematic structural view of an internal pressing mechanism according to the present invention.
Fig. 8 is a schematic structural view of a battery clamping unit according to the present invention.
Reference numbers in the figures: 1. operating the bottom plate; 11. a vertical positioning rod; 12. a sliding groove; 2. a mounting frame; 21. a top pressing plate; 3. a spot welding device; 31. a transverse adjusting screw; 32. a longitudinal adjusting screw; 33. a transverse sliding frame; 34. a longitudinal slide block; 35. a spot welding head; 4. a battery holding unit; 41. clamping the fixing plate; 42. a middle mounting block; 421. a limiting block; 43. a clamping rod; 431. a spring mounting plate; 44. a flexible clamping plate; 45. a return spring; 46. a synchronization mechanism; 461. a synchronizing gear; 462. a synchronous rack; 47. a locking mechanism; 471. a locking toothed plate; 472. locking the rack bar; 473. the spring rod is pressed; 474. a fixed connecting rod; 475. a poke rod; 5. an internal jacking mechanism; 51. mounting the cylinder; 511. a rack mounting groove; 512. a radial slot; 52. an inner slide bar; 53. a trigger plate; 54. an upward moving rack; 55. downward moving the rack; 56. an intermediate gear; 57. an inner top block; 58. an outward expansion plate; 6. a feeding device; 61. a vertical slide bar; 62. a supporting seat; 63. a lower conveying roller; 64. an upper conveying roller; 65. compressing the spring rod; 7. a dividing mechanism; 71. dividing the gear; 72. cutting the rack; 73. a dividing knife; 74. a cutting frame; 75. dividing the spring rod; 76. and (4) pre-ejecting a rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, the invention provides a lithium battery pack unit welding device, which comprises an operation bottom plate 1, wherein four vertical positioning rods 11 are fixedly installed at the upper end of the operation bottom plate 1 along four rectangular corners, an installation frame 2 is arranged at the upper end of the operation bottom plate 1, and the installation frame 2 is connected with the vertical positioning rods 11 in a sliding manner along the vertical direction.
As shown in fig. 1, 5, 6 and 8, the spot welding device 3 is installed on the installation frame 2, a battery clamping unit 4 is installed between the operation bottom plate 1 and the installation frame 2, the battery clamping unit 4 includes a clamping fixing plate 41, middle installation blocks 42, clamping rods 43, a flexible clamping plate 44 and a return spring 45, sliding grooves 12 extending along respective directions are formed in the front, rear, left and right directions of the operation bottom plate 1, the clamping fixing plate 41 is four and is respectively connected with the sliding grooves 12 in respective directions in a sliding manner, a plurality of middle installation blocks 42 fixedly installed with the clamping fixing plate 41 are distributed on the clamping fixing plate 41 along the horizontal direction at equal intervals, clamping rods 43 are hinged to two sides of the middle installation blocks 42, the clamping rods 43 are distributed at the upper and lower ends of the middle installation blocks 42, a limiting block 421 fixedly connected with the middle installation blocks 42 is arranged between the clamping rods 43 at the upper end of the same side, be located fixed mounting between the centre mounting piece 42 and the clamping rod 43 of the same side have spring mounting panel 431, fixed mounting has reset spring 45 between the spring mounting panel 431 of middle mounting piece 42 both sides, on same mounting piece 42 the end of clamping rod 43 articulates jointly has flexible grip block 44, the lower extreme of operation bottom plate 1 is provided with the locking mechanical system 47 that is used for centre gripping fixed plate 41 simultaneous movement 46 and is used for locking simultaneous system 46.
As shown in fig. 5, the synchronizing mechanism 46 includes a synchronizing gear 461 and a synchronizing rack 462, the synchronizing gear 461 is rotatably connected to the lower end of the operating base plate 1 and is located at the middle position of the four clamping fixing plates 41, four synchronizing racks 462 respectively pointing to the front, rear, left and right directions are circumferentially distributed on the outer side of the synchronizing gear 461, the synchronizing gear 461 is engaged with the synchronizing rack 462, and the synchronizing rack 462 is fixedly connected with the clamping fixing plate 41 pointing thereto.
As shown in fig. 5 and 6, the locking mechanism 47 includes a locking tooth plate 471, a locking tooth rod 472, a pressing spring rod 473, and a fixed connecting rod 474, the fixed connecting rod 474 is fixedly connected to one of the synchronous racks 462, the fixed connecting rod 474 is a U-shaped rod, the locking tooth rod 472 is slidably connected to the fixed connecting rod 474 in the horizontal direction, the pressing spring rod 473 is fixedly connected between the locking tooth rod 472 and the fixed connecting rod 474, the locking tooth plate 471 is engaged with the end of the locking tooth rod 472, the locking tooth plate 471 is fixedly mounted at the lower end of the operating base plate 1, a shifting rod 475 is further fixedly connected to the locking tooth rod 472, and the shifting rod 475 extends from the side edge of the operating base plate 1.
It should be noted that, in the process of welding the lithium battery pack, the battery clamping unit 4 is moved to a position where the gap in the middle is slightly larger than the size of the battery pack according to the approximate size of the lithium battery pack, then the single lithium batteries are placed in the gap in the middle of the battery clamping unit 4, attention needs to be paid to the fact that the directions of the positive and negative poles of two adjacent rows of lithium batteries along the left and right directions are opposite in the process of discharging the lithium batteries, then the battery clamping unit 4 is further pushed to enable the flexible clamping plate 44 and the outer side faces of the lithium batteries to be attached to each other, in the process, the synchronizing mechanism 46 enables the movement of the battery clamping unit 4 in the four directions to be consistent, so that a plurality of lithium batteries can be fixed in a fixed area, the batteries are clamped through the flexible clamping plate 44, and the batteries can be still well clamped even when the diameters of the batteries are changed, and reset spring 45 can make clamping rod 43 drive flexible grip block 44 and reset when breaking away from the centre gripping to the battery, and the effect of stopper 421 can be so that the position of clamping rod 43 obtains the location, and after the position of lithium cell is fixed, drives mounting bracket 2 downstream through external elevating gear like cylinder or pneumatic cylinder to weld the wire on the bottom surface of lithium cell through spot welding device 3.
In the process of the synchronization mechanism 46 functioning, one clamping fixing plate 41 drives one synchronization rack 462 to move, the synchronization rack 462 drives the synchronization gear 461 to rotate, the synchronization gear 461 drives the other synchronization racks 462 to move, thereby realizing the synchronous movement of all the battery clamping units 4, in the process of locking the synchronization mechanism 46 by the locking mechanism 47, the locking tooth plate 471 is provided with locking grooves which are distributed in rows and have one inclined surface and one straight surface, thus, in the process of clamping the lithium battery, the locking toothed bar 472 is in contact with the inclined toothed surface of the locking toothed plate 471, so that the position of the synchronous rack 462 is not restricted, when the clamping is completed, the locking rack bar 472 moves reversely to meet the straight tooth surface of the locking groove and cannot move, this achieves locking of the position of the battery holding unit 4, and when it is necessary to unlock the lock, the locking toothed bar 472 and locking toothed plate 471 can be unlocked by a toggle lever 475.
As shown in fig. 1 and 2, the spot welding device 3 includes a horizontal adjusting screw 31, a vertical adjusting screw 32, a horizontal sliding rack 33, a vertical sliding block 34, and a spot welding head 35, a plurality of horizontal sliding racks 33 are slidably distributed on the mounting frame 2 along the left and right direction, the horizontal adjusting screw 31 is rotatably connected with the horizontal sliding rack 33, a plurality of sets of threads with opposite rotation directions are distributed on the horizontal adjusting screw 31 along the mirror image of the middle position, the thread is in threaded connection with the horizontal sliding rack 33, the thread pitch of the thread increases along with the distance from the middle position of the horizontal adjusting screw 31 from near to far in equal proportion, a plurality of vertical sliding blocks 34 are slidably connected on the horizontal sliding rack 33 along the front and back direction, the vertical adjusting screw 32 is rotatably connected with the horizontal sliding rack 33, a plurality of sets of threads with opposite rotation directions are distributed on the vertical adjusting screw 32 along the mirror image of the middle position, and the thread position is in threaded connection with the longitudinal sliding block 34, the thread pitch of the thread position increases proportionally with the distance from the middle of the longitudinal adjusting screw 32 from near to far, and the lower end of the longitudinal sliding block 34 is fixedly connected with a spot welding head 35.
As shown in fig. 2 and 7, an internal pressing mechanism 5 is further fixedly mounted at the lower end of the longitudinal sliding block 34, the internal pressing mechanism 5 includes a mounting cylinder 51, an internal sliding rod 52, a trigger disc 53, an upper moving rack 54, a lower moving rack 55, a middle gear 56, an internal pressing block 57 and an external expanding plate 58, the mounting cylinder 51 is fixedly mounted at the lower end of the longitudinal sliding block 34, the mounting cylinder 51 is a square cylinder and the mounting cylinder 51 is hollow, a rack mounting groove 511 is formed in an outer wall of the upper end of the mounting cylinder 51, the upper moving rack 54 and the lower moving rack 55 are respectively connected with two sides of the rack mounting groove 511 in a sliding manner in the vertical direction, the middle gear 56 is arranged between the upper moving rack 54 and the lower moving rack 55, the middle gear 56 is rotatably erected in the middle of the rack mounting groove 511, the trigger disc 53 is slidably sleeved on the outer side of the mounting cylinder 51 and is fixedly connected with the upper moving rack 54, the inner slide rod 52 is arranged on the inner side of the mounting cylinder 51 and is in sliding connection with the mounting cylinder 51, the inner slide rod 52 is fixedly connected with the downward moving rack 55, an inner top block 57 is fixedly connected with the lower end of the inner slide rod 52, four inner top blocks 57 are circumferentially distributed on the inner top block 57, the outer side surface of each inner top block 57 gradually inclines towards the inner slide rod 52 from top to bottom, a radial groove 512 is formed in the side surface of the mounting cylinder 51, an outer expanding plate 58 is connected in the radial groove 512 in a sliding mode, and one side, located inside the mounting cylinder 51, of the outer expanding plate 58 is connected with the inner top block 57 in a sliding and buckling mode.
It should be noted that, in the process of adjusting the spot welding device 3, the transverse sliding frame 33 moves in the left-right direction by rotating the transverse adjusting screw 31, and the longitudinal sliding block 34 moves in the front-back direction by rotating the longitudinal screw 32, so that the position of the spot welding head 35 is adjusted to align the position of the spot welding head 35 with the bottom surface of the lithium battery, thereby performing relatively precise welding on the lithium battery.
Because the single lithium battery is cylindrical, even if the lithium batteries are integrally constrained together, a slight dislocation phenomenon still occurs, the dislocation phenomenon is offset by the internal jacking mechanism 5, the position of the internal jacking mechanism 5 is adjusted when the position of the spot welding head 35 is adjusted, so that the internal jacking mechanism 5 is just opposite to an area enclosed by the four lithium batteries, in the process that the longitudinal sliding block 34 drives the internal jacking mechanism 5 to move downwards, the trigger disc 53 is contacted with the upper side surface of the lithium battery, at the moment, the trigger disc 53 moves upwards relative to the mounting cylinder 51, at the moment, by taking the mounting cylinder 51 as a fixed reference system, the trigger disc 53 drives the upper moving rack 54 to move upwards, the upper moving rack 54 drives the intermediate gear 56 to rotate, the intermediate gear 56 drives the lower moving rack 55 to move downwards, the lower moving rack 55 drives the inner jacking block 57 to move downwards through the inner sliding rod 52, interior kicking block 57 can the roof pressure expand outward movement of board 58 outward, finally can produce the roof pressure to the side of lithium cell, under the combined action of a plurality of inside roof pressure mechanisms 5, make the position of each lithium cell obtain accurate playback, thereby the condition of dislocation has been offset, after the welding of completion lithium cell, the in-process that moves up in inside roof pressure mechanism 5, trigger plate 53 can the downstream under the effect of gravity, thereby slide bar 52 upward movement in driving, interior slide bar 52 drives interior kicking block 57 upward movement, and then drive and expand board 58 outward and to the inboard removal of installation section of thick bamboo 51, make and expand board 58 outward and accomplish and reset.
As shown in fig. 3, a material conveying device 6 is disposed at the rear side of the battery clamping unit 4, the material conveying device 6 includes a vertical sliding rod 61, a supporting seat 62, a lower conveying roller 63, an upper conveying roller 64, and a hold-down spring rod 65, the vertical sliding rod 61 is divided into two rows and fixedly mounted at the upper end of the operating base plate 1, the supporting seat 62 is slidably connected with the vertical sliding rod 61 along the vertical direction, the hold-down spring rod 65 is fixedly connected between the supporting seat 62 and the operating base plate 1, the lower conveying roller 63 is rotatably connected between the supporting seats 62 opposite to the left and right sides, and the upper conveying roller 64 is disposed at the upper end of the operating base plate 1 through a transmission rod rotating frame.
As shown in fig. 3 and 4, a dividing mechanism 7 is disposed between the feeding device 6 and the battery clamping unit 4, the dividing mechanism 7 includes a dividing gear 71, a dividing rack 72, a dividing knife 73 and a dividing rack 74, the dividing rack 74 is fixedly mounted on the upper end of the operation base plate 1, the dividing rack 72 is slidably connected with the dividing rack 74 along the vertical direction, two dividing racks 72 are disposed opposite to each other, a dividing gear 71 is engaged between the dividing racks 72, the dividing gear 71 is rotatably connected with the dividing rack 74, the dividing racks 72 are fixedly connected with the dividing knives 73, the dividing knives 73 are staggered with each other, a dividing spring rod 75 is fixedly connected between the upper end of one dividing rack 72 and the dividing rack 74, and a pre-lift rod 76 is fixedly connected with the upper end of the other dividing rack 72 through the upper end of the dividing rack 74, and a top pressure plate 21 corresponding to the pre-ejector rod 76 is fixedly arranged on the mounting frame 2.
It should be noted that the conveying of the wire guide plate is completed by the material conveying device 6, the upper conveying roller 64 is driven to rotate by the external motor, so that the wire guide plate is moved to the upper end of the lithium battery, the upper conveying roller 64 and the lower conveying roller 63 can clamp the wire guide plate all the time by the elastic force of the compression spring rod 65, and a good conveying state is ensured.
After the welding of lithium cell, should separate the wire guide that has welded on the lithium cell group and the wire guide at rear, accomplish above-mentioned function through cutting mechanism 7, in the in-process of mounting bracket 2 downstream, roof pressure board 21 will finally push up in the upper end of pre-ejector pin 76, pre-ejector pin 76 can drive the rack 72 of cutting apart that links to each other and move down, it drives another rack 72 of cutting apart and move up through cutting apart gear 71 to cut apart rack 72, two are cut apart rack 72 and are driven the motion of cutting apart sword 73 in opposite directions, thereby cut apart the wire guide, it can reset to the position of cutting apart sword 73 after accomplishing cutting apart of wire guide to cut apart spring beam 75.
The working process of the invention is that in the process of welding the lithium battery pack, the battery clamping unit 4 is moved to a position where the gap in the middle of the battery clamping unit 4 is slightly larger than the size of the battery pack according to the approximate size of the lithium battery pack, then the single lithium battery is placed in the gap in the middle of the battery clamping unit 4, attention is paid to the fact that the directions of the positive and negative poles of two rows of lithium batteries adjacent in the left-right direction are opposite in the process of placing the lithium batteries, then the lithium batteries are fixed and welded, in the process, the flexible clamping plate 44 is attached to the outer side faces of the lithium batteries by pushing the battery clamping unit 4, in the process, the synchronous mechanism 46 enables the movement of the battery clamping unit 4 in four directions to be consistent, so that a plurality of lithium batteries can be fixed in a fixed area, the batteries are clamped through the flexible clamping plate 44, and the batteries can be well fed even when the diameters of the batteries are changed The line centre gripping, at the adjustment point welding device 3's in-process, make horizontal carriage 33 remove along left right direction through rotating horizontal adjusting screw 31, it makes vertical sliding block 34 remove along the fore-and-aft direction to rotate vertical adjusting screw 32, thereby the position of adjustment point bonding tool 35 makes the up end of the position alignment lithium cell of spot welding head 35, thereby carry out comparatively accurate welding to the lithium cell, under the combined action through inside roof pressure mechanism 5, the position that makes each lithium cell obtains accurate playback, thereby the condition of the dislocation of lithium cell at the in-process production of arranging has been offset.
The circuits and controls involved in the present invention are prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The lithium battery pack unit welding equipment comprises an operation bottom plate (1), wherein four vertical positioning rods (11) are fixedly mounted at the upper end of the operation bottom plate (1) along four rectangular corners, an installation rack (2) is arranged at the upper end of the operation bottom plate (1), and the installation rack (2) is in sliding connection with the vertical positioning rods (11) along the vertical direction; the spot welding device is characterized in that a spot welding device (3) is installed on the installation frame (2), a battery clamping unit (4) is arranged between the operation bottom plate (1) and the installation frame (2), the battery clamping unit (4) comprises a clamping fixing plate (41), middle installation blocks (42), clamping rods (43), a flexible clamping plate (44) and a reset spring (45), sliding grooves (12) extending along respective directions are formed in the front direction, the rear direction, the left direction and the right direction of the operation bottom plate (1), the four clamping fixing plates (41) are in sliding connection with the sliding grooves (12) in all directions respectively, a plurality of middle installation blocks (42) fixedly installed with the clamping fixing plates (41) are equidistantly distributed on the clamping fixing plate (41) along the horizontal direction, and the clamping rods (43) are hinged to two sides of the middle installation blocks (42), and with upper and lower both ends that clamping rod (43) distribute in middle installation piece (42), be located to be provided with between clamping rod (43) of upper end with middle installation piece (42) fixed connection's stopper (421), be located between middle installation piece (42) with fixed mounting between clamping rod (43) of one side have spring mounting panel (431), fixed mounting has reset spring (45) between spring mounting panel (431) of middle installation piece (42) both sides, on same installation piece (42) the end of clamping rod (43) articulates jointly has flexible grip block (44), the lower extreme of operation bottom plate (1) is provided with lazytongs (46) that are used for centre gripping fixed plate (41) simultaneous movement and is used for locking mechanical system (47) of lazytongs (46).
2. The lithium battery pack unit welding device according to claim 1, wherein the synchronizing mechanism (46) comprises a synchronizing gear (461) and a synchronizing rack (462), the synchronizing gear (461) is rotatably connected to the lower end of the operating base plate (1) and is located at the middle position of four clamping fixing plates (41), four synchronizing racks (462) pointing in the forward, backward, left and right directions are circumferentially distributed on the outer side of the synchronizing gear (461), the synchronizing gear (461) is meshed with the synchronizing rack (462), and the synchronizing rack (462) is fixedly connected with the clamping fixing plates (41) pointed by the synchronizing rack (462).
3. The lithium battery pack unit welding device according to claim 1 or 2, wherein the locking mechanism (47) comprises a locking toothed plate (471), a locking toothed rod (472), a pressing spring rod (473) and a fixed connecting rod (474), the fixed connecting rod (474) is fixedly connected with one of the synchronous racks (462), the fixed connecting rod (474) is a U-shaped rod, the locking toothed rod (472) is slidably connected with the fixed connecting rod (474) along a horizontal direction, the pressing spring rod (473) is fixedly connected between the locking toothed rod (472) and the fixed connecting rod (474), the locking toothed plate (471) is engaged with the end of the locking toothed rod (472) and the locking toothed plate (471) is fixedly installed at the lower end of the operating base plate (1), a shifting rod (475) is fixedly connected to the locking toothed rod (472), the poke rod (475) extends out from the side edge of the operation bottom plate (1).
4. The lithium battery pack unit welding equipment according to claim 1, wherein the spot welding device (3) comprises a transverse adjusting screw (31), a longitudinal adjusting screw (32), a transverse sliding frame (33), a longitudinal sliding block (34) and a spot welding head (35), a plurality of transverse sliding frames (33) are slidably distributed on the mounting frame (2) along the left and right direction, the transverse adjusting screw (31) is rotatably connected with the transverse sliding frames (33), a plurality of groups of threads with opposite rotation directions are specularly distributed on the transverse adjusting screw (31) along the middle position, the threads are in threaded connection with the transverse sliding frame (33), the thread pitch of the threads is increased along with the distance from the middle position of the transverse adjusting screw (31) from near to far in equal proportion, and the plurality of longitudinal sliding blocks (34) are slidably connected on the transverse sliding frame (33) along the front and back direction, the longitudinal adjusting screw rod (32) is rotationally connected with the transverse sliding frame (33), a plurality of groups of threads with opposite rotation directions are distributed on the longitudinal adjusting screw rod (32) along the mirror image of the middle position, the thread position is in threaded connection with the longitudinal sliding block (34), the thread pitch of the thread position is increased along with the distance from the middle position of the longitudinal adjusting screw rod (32) from near to far in equal proportion, and a spot welding head (35) is fixedly connected to the lower end of the longitudinal sliding block (34).
5. The lithium battery pack unit welding equipment according to claim 4, wherein an internal jacking mechanism (5) is fixedly installed at the lower end of the longitudinal sliding block (34) except for the frontmost row and the rightmost row, the internal jacking mechanism (5) comprises an installation barrel (51), an inner sliding rod (52), a triggering disc (53), an upper moving rack (54), a lower moving rack (55), a middle gear (56), an inner jacking block (57) and an outer expanding plate (58), the installation barrel (51) is fixedly installed at the lower end of the longitudinal sliding block (34), the installation barrel (51) is a square barrel, the installation barrel (51) is hollow, a rack installation groove (511) is formed in the outer wall of the upper end of the installation barrel (51), and the upper moving rack (54) and the lower moving rack (55) are respectively connected with two sides of the rack installation groove (511) in a sliding manner along the vertical direction, go up move up rack (54) with move down the centre department of rack (55) and be provided with intermediate gear (56), intermediate gear (56) rotating bracket establishes the centre department of rack mounting groove (511), trigger dish (53) slip cover establish the outside of installation section of thick bamboo (51) and with move up rack (54) fixed connection, interior slide bar (52) inboard and with installation section of thick bamboo (51) sliding connection in installation section of thick bamboo (51), interior slide bar (52) with move down rack (55) fixed connection, the lower extreme fixedly connected with of interior slide bar (52) is interior kicking block (57), interior kicking block (57) circumferential distribution has four just the lateral surface from the top down of interior kicking block (57) slopes to interior slide bar (52) gradually, radial groove (512) has been seted up to the side of installation section of thick bamboo (51), sliding connection has outward expanding board (58) in radial groove (512) and outward expanding board (58) are located the inside one side of installation section of thick bamboo (51) and installing section of thick bamboo (51) and radial groove (512) The inner top block (57) is connected in a sliding buckling mode.
6. The lithium battery pack unit welding apparatus according to claim 1 or 4, a material conveying device (6) is arranged at the rear side of the battery clamping unit (4), the material conveying device (6) comprises a vertical sliding rod (61), a supporting seat (62), a lower conveying roller (63), an upper conveying roller (64) and a compression spring rod (65), the vertical sliding rods (61) are divided into two rows and fixedly arranged at the upper end of the operation bottom plate (1), the supporting seat (62) is connected with the vertical sliding rod (61) in a sliding way along the vertical direction, a pressing spring rod (65) is fixedly connected between the supporting seat (62) and the operating bottom plate (1), a lower conveying roller (63) is rotatably connected between the supporting seats (62) opposite to the left side and the right side, and an upper conveying roller (64) is arranged at the upper end of the operation bottom plate (1) through a transmission rod rotating frame.
7. The lithium battery pack unit welding equipment according to claim 6, wherein a dividing mechanism (7) is arranged between the material conveying device (6) and the battery clamping unit (4), the dividing mechanism (7) comprises a dividing gear (71), a dividing rack (72), a dividing knife (73) and two dividing racks (74), the dividing racks (74) are fixedly arranged at the upper end of the operation bottom plate (1), the dividing rack (72) is connected with the dividing racks (74) in a sliding manner along the vertical direction, the two dividing racks (72) are oppositely arranged, the dividing gear (71) is meshed between the dividing racks (72), the dividing gear (71) is connected with the dividing racks (74) in a rotating manner, the dividing racks (72) are fixedly connected with the dividing knives (73), and the dividing knives (73) are mutually staggered, a dividing spring rod (75) is fixedly connected between the upper end of one dividing rack (72) and the dividing frame (74), the upper end of the other dividing rack (72) penetrates through the upper end of the dividing frame (74) and is fixedly connected with a pre-ejection rod (76), and a jacking plate (21) corresponding to the pre-ejection rod (76) is fixedly mounted on the mounting frame (2).
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| CN202210685246.1A CN115008101B (en) | 2022-06-14 | 2022-06-14 | Welding equipment for lithium battery pack unit |
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| CN202210685246.1A CN115008101B (en) | 2022-06-14 | 2022-06-14 | Welding equipment for lithium battery pack unit |
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| CN115008101B CN115008101B (en) | 2023-04-11 |
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| CN115971769A (en) * | 2023-01-31 | 2023-04-18 | 安徽海宏新能源有限公司 | Welding device for lithium battery pack |
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