CN219169901U - Soft packet of battery seals welding equipment - Google Patents

Abstract

The utility model discloses soft package battery sealing and welding equipment, wherein a conveyor belt passes through a working protective box through a pair of feeding and discharging holes and drives a battery to enter and leave the working protective box; the rotary feeding and discharging device, the rotary switching device, the battery limiting and rotating device and the laser welding device are arranged on the workbench seat and are positioned in the working protective box; the rotary feeding and discharging device, the rotary switching device, the battery limiting and rotating device and the laser welding device are sequentially far away from the conveyor belt; the rotary charging and discharging device is used for carrying the battery between the conveyor belt and the rotary switching device; the rotary switching device is used for switching the battery between a welding position and a loading position; the battery limiting and rotating device is used for limiting the battery at a welding position and driving the battery to intermittently rotate at equal angles; the laser welding device is used for welding the sealing plate on the battery shell. The utility model has the advantages of no need of manual participation in the welding process, automatic completion of feeding and discharging and welding procedures and high welding efficiency.

Description

Soft packet of battery seals welding equipment

Technical Field

The utility model relates to the field of welding of battery sealing plates, in particular to a soft package battery sealing welding device.

Background

The soft package battery comprises a cuboid battery shell, and when the soft package battery is assembled, a sealing plate needs to be placed in an opening at the upper end of the battery shell and welded, and manual welding operation is generally carried out.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: manual welding is carried out by a professional with welding experience, and meanwhile, the manual welding efficiency is low, the welding operation intensity is high, and time and labor are wasted.

Disclosure of Invention

The utility model provides soft package battery sealing welding equipment, which aims to solve the technical problem of low sealing welding efficiency of an artificial soft package battery.

The utility model provides soft package battery seal welding equipment which adopts the following technical scheme:

a soft package battery seal welding device comprises a workbench, a conveyor belt, a rotary feeding and discharging device, a rotary switching device, a battery limiting and rotating device and a laser welding device; the workbench comprises a workbench seat; the working pedestal is provided with a working protective box; one end of the working protective box is formed with a pair of feeding and discharging holes for the conveyor belt to horizontally pass through; the conveyor belt passes through the working protective box through a pair of feeding holes and discharging holes and drives the battery to enter and leave the working protective box; the rotary feeding and discharging device, the rotary switching device, the battery limiting and rotating device and the laser welding device are arranged on the upper end face of the workbench base and are positioned in a working protective box; the rotary feeding and discharging device, the rotary switching device, the battery limiting and rotating device and the laser welding device are sequentially far away from the conveyor belt; the rotary charging and discharging device is used for carrying batteries between the conveyor belt and the rotary switching device; the rotary switching device is used for switching the battery between a welding position and a loading position; the battery limiting and rotating device is used for limiting the battery at a welding position and driving the battery to intermittently rotate at equal angles; the laser welding device is used for emitting laser in the horizontal direction to weld the sealing plate on the battery shell.

Through adopting the technical scheme, the battery with the sealing plate arranged on the battery shell enters the working protective box through the conveyor belt, and then the battery is conveyed to the rotary switching device through the rotary feeding and discharging device; then the battery is driven by the rotary switching device to reach a welding position, the battery is limited at the welding position by the battery limiting rotating device, laser welding is carried out on a gap between the opposite sealing plate and the battery shell by emitting laser in the horizontal direction by the laser welding device, the battery is driven by the battery limiting rotating device to rotate by one hundred eighty degrees, and then laser welding is carried out by the laser welding device, so that a pair of gaps between the sealing plate and the battery shell are welded in sequence; in the welding process, manual participation is not needed, feeding and discharging and welding procedures are automatically completed, and the welding efficiency is high.

Optionally, the rotary feeding and discharging device comprises a rotary supporting frame which is intermittently and rotatably arranged on the upper end surface of the workbench base; a lifting support plate is vertically arranged on the upper end surface of the rotary support frame in a moving way; claw mechanisms for grabbing the battery are respectively arranged at two ends of the lower end face of the lifting supporting plate; the pair of claw mechanisms are symmetrically arranged relative to the rotary supporting frame.

By adopting the technical scheme, the lifting support plate descends, the claw mechanism close to the conveyor belt grabs unwelded batteries on the conveyor belt, and the claw mechanism close to the rotary switching device grabs welded batteries on the feeding position of the rotary switching device; then the lifting support plate ascends, then the rotary support frame rotates by one hundred eighty degrees, then the welded battery is placed on the conveyor belt, the unwelded battery is placed on the feeding position of the rotary switching device, and then the lifting support plate ascends to return, so that the feeding and the discharging of the battery are finished simultaneously, and the production efficiency is improved.

Optionally, the jaw mechanism includes a carrying jaw cylinder; and a pair of carrying claws are respectively fixed on a pair of fingers of the carrying claw cylinder.

Through adopting above-mentioned technical scheme, transport claw cylinder drives a pair of transport claw and keeps away from or be close to in order to release or snatch the battery in step.

Optionally, the jaw mechanism further comprises a jaw upper support plate fixed on the lower end surface of the lifting support plate; an adjusting electric cylinder is formed on the lower end face of the claw upper supporting plate; an adjusting driving plate is fixed on a piston rod of the adjusting electric cylinder; an adjusting horizontal supporting plate is fixed on the bottom surface of the adjusting driving plate; the carrying claw cylinder is fixed on the lower end face of the adjusting horizontal supporting plate.

Through adopting above-mentioned technical scheme, can drive whole jack catch mechanism through adjusting the electric jar and remove for jack catch mechanism snatchs the position of battery and is in the design position.

Optionally, the rotation switching device comprises a rotation switching motor fixed on the upper end surface of the workbench base; a circular plate-shaped switching support plate is fixed on the upper end surface of the rotary switching motor; a pair of bearing seats with evenly distributed circumferences are arranged on the upper end surface of the switching support plate; a battery placement seat is rotatably arranged on the bearing seat; the battery placement seat is used for placing a battery; a pair of side support frames with evenly distributed circumferences are arranged on the upper end face of the switching support plate; a side limiting electric cylinder is fixed at the upper end of the side supporting frame; a piston rod of the side limiting electric cylinder is fixed with a side limiting pressing plate; the side limiting pressing plates are in one-to-one correspondence with the battery placement seats and are used for abutting against the batteries on the corresponding sides.

Through adopting above-mentioned technical scheme, the battery is placed in the battery seat, then the spacing clamp plate of side removes to the battery and support the battery, in the rotatory in-process of switching backup pad like this, the battery is not unexpected to drop, is in the origin when can guaranteeing the battery return simultaneously, makes things convenient for follow-up extraction.

Optionally, the battery limiting and rotating device comprises a portal frame fixed on the upper end surface of the workbench seat; the top of the portal frame is rotatably provided with a main driving plate; a vertical moving plate is vertically arranged on the lower end surface of the main driving plate in a moving way; a length claw cylinder and a pair of opposite width abutting cylinders are arranged on the lower end face of the vertical moving plate; a width limiting moving plate is fixed on a piston rod of the width abutting cylinder; a width abutting strip is fixed on the end surfaces of the pair of width limiting moving plates, which are close to each other; the length jaw cylinder comprises three pairs of fingers and a gap for laser welding is arranged between the three pairs of fingers.

By adopting the technical scheme, when the rotary switching device drives the battery to a welding position, the vertical moving plate descends, then the length claw cylinder starts clamping to enable three pairs of fingers to clamp the battery, then the width abutting cylinder drives the width limiting moving plate to move towards the battery, and the width abutting strip abuts against the battery, so that the laser welding device welds gaps among the three pairs of fingers of the length claw cylinder; after one side is welded, the main driving plate rotates one hundred eighty degrees, so that the laser welding device can weld the other side of the battery.

Optionally, a pair of vertical parts of the portal frame are provided with dust removal air suction nozzles; the pair of dust removal air suction nozzles are positioned on one side of the portal frame, which is close to the laser welding device, one end of each dust removal air suction nozzle is opposite to the welding position, and the other end of each dust removal air suction nozzle is connected with an external collecting device through a pipeline.

Through adopting above-mentioned technical scheme, in welding process, a pair of dust removal air extraction mouth is taken out for the welding slag that the welding produced is taken away, reduces the welding slag and detains, in order to avoid polluting equipment.

Optionally, the laser welding device comprises an X-axis module, a Y-axis module, a Z-axis module and a welding laser head; the X-axis module comprises an X-axis sliding block which moves along the conveying direction of the conveying belt; the Y-axis module comprises a vertical connecting frame which moves perpendicular to the conveying direction of the conveying belt; the Z-axis module comprises a Z-axis sliding block which moves in the vertical direction; the Y-axis module is arranged on the X-axis sliding block; the Z-axis module is arranged on the vertical connecting frame; the welding laser head is arranged on the Z-axis sliding block.

By adopting the technical scheme, the welding laser head can move along the three shafts, so that the welding laser head can adapt to products with the sizes.

In summary, the beneficial effects of the utility model are as follows:

1. in the welding process, the feeding and discharging and welding procedures are automatically completed without manual participation, and the welding efficiency is high.

2. And meanwhile, the charging and discharging of the battery are finished, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the removal work protecting box 12 of the present utility model.

Fig. 3 is a schematic structural view of a rotary loading and unloading device 30 according to the present utility model.

Fig. 4 is a schematic structural view of the click-on mechanism 37 of the present utility model.

Fig. 5 is a schematic structural view of the rotary switching device 40 of the present utility model.

Fig. 6 is a schematic view of the battery limit rotation device 50 according to the present utility model.

Fig. 7 is a schematic front view of the battery limit rotation device 50 according to the present utility model.

Fig. 8 is a schematic view of the battery limit rotation device 50 according to the present utility model, with the portal frame 51 removed.

Fig. 9 is a schematic structural view of a laser welding apparatus 60 of the present utility model.

Reference numerals illustrate:

10. a work table; 11. a work bench; 12. a working protective box; 120. feeding and discharging holes;

100. a battery;

20. a conveyor belt;

30. rotating the feeding and discharging device; 31. a rotating base; 32. feeding and discharging rotating motors; 33. rotating the support frame; 34. feeding and discharging lifting electric cylinders; 35. a hydraulic buffer; 36. lifting the supporting plate; 361. a vertical guide rod; 37. a claw mechanism; 371. a claw upper support plate; 372. adjusting an electric cylinder; 373. adjusting the horizontal support plate; 3731. adjusting the driving plate; 374. a carrying claw cylinder; 375. a carrying claw;

40. a rotary switching device; 41. a rotary switching motor; 42. switching the support plate; 421. a side support; 43. a bearing seat; 44. a battery setting seat; 441. a battery mounting plate; 4410. an avoidance groove; 442. a width limiting seat; 443. a length limiting seat; 45. a side limiting electric cylinder; 451. a side limiting pressure plate;

50. a battery limit rotating device; 51. a portal frame; 52. a rotary drive motor; 53. a gear box; 54. a main driving plate; 541. a vertical slide rail; 55. welding a limiting lifting cylinder; 56. a vertical moving plate; 561. a lower limit frame; 562. a limit bolt; 563. a vertical connecting frame; 564. a vertical slider; 565. a horizontal guide rail; 57. a length jaw cylinder; 58. the width is abutted against the cylinder; 581. a width limiting moving plate; 582. a width abutment bar; 59. dust removal air suction nozzle;

60. a laser welding device; 61. an X-axis module; 62. a Y-axis module; 621. a Y-axis slider; 622. a vertical support; 63. a Z-axis module; 64. welding a laser head; 65. a dust-proof air wall generator.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-9.

The application discloses a soft package battery seal welding device, referring to fig. 1 and 2, comprising a workbench 10, a conveyor belt 20, a rotary feeding and discharging device 30, a rotary switching device 40, a battery limiting and rotating device 50 and a laser welding device 60; the table 10 includes a table base 11; a working protective box 12 is arranged on the working table seat 11; one end of the working protective case 12 is formed with a pair of feeding and discharging holes 120 through which the conveyor belt 20 horizontally passes; the conveyor belt 20 passes through the work protection box 12 through a pair of loading and unloading holes 120 and drives the battery into and out of the work protection box 12; the rotary feeding and discharging device 30, the rotary switching device 40, the battery limiting and rotating device 50 and the laser welding device 60 are arranged on the upper end surface of the working table 11 and are positioned in the working protective box 12; the rotary feeding and discharging device 30, the rotary switching device 40, the battery limiting and rotating device 50 and the laser welding device 60 are sequentially far away from the conveyor belt 20; the rotary loading and unloading device 30 is used for conveying the battery 100 between the conveyor belt 20 and the rotary switching device 40; the rotation switching device 40 is used for switching the battery 100 between a welding position and a loading position; the battery limiting and rotating device 50 is used for limiting the battery 100 to a welding position and driving the battery 100 to intermittently and equiangularly rotate; the laser welding device 60 is used to weld the sealing plate to the battery case by emitting laser light in a horizontal direction.

Referring to fig. 1 and 2, a pair of width limiting plates are formed at an upper side of the conveyor belt 20; the interval between a pair of width limiting plates is matched with the width of the battery 100 and a plurality of pairs of evenly distributed limiting groups are arranged on the working surface of the conveyor belt 20; the limiting group comprises a pair of conveying support plates; one end, close to the upper end surface, of a pair of conveying support plates of the same limiting group is respectively formed with a limiting slot for vertically inserting the power supply 100; when the conveyor belt 20 conveys, the battery 100 is vertically inserted into the limit slots of a pair of conveying support plates of the same limit group from top to bottom; in this way, the battery 100 is limited in the length direction by the pair of limit slots and in the width direction by the pair of width limit plates, which ensures that the battery 100 is=in the correct position at the time of gripping.

Referring to fig. 3 and 4, the rotary loading and unloading device 30 includes a rotary base 31 fixed on the upper end surface of the work table 11; a feeding and discharging rotating motor 32 is fixed on the rotating base 31; a rotary supporting frame 33 is fixed at the upper end of an output shaft of the feeding and discharging rotary motor 32; the rotary support frame 33 includes a pair of rotary support plates distributed up and down; a rotary vertical plate is respectively fixed between the four end surfaces of the pair of rotary support plates; an upper and lower material lifting cylinder 34 is fixed on the upper end surface of the lower rotary support plate; the upper end of a piston rod of the feeding and discharging lifting electric cylinder 34 passes through the upper rotary supporting plate and is fixed with a lifting supporting plate 36; four rectangular vertical guide rods 361 are fixed on the lifting support plate 36; four vertical guide sleeves matched with the vertical guide rods 361 are formed on the upper rotary support plate; two ends of the lower end surface of the lifting support plate 36 are respectively provided with a claw mechanism 37 for grabbing the battery 100; a pair of claw mechanisms 37 are symmetrically arranged with respect to the rotating support 33; a hydraulic buffer 35 is mounted on the upper rotary support plate; the hydraulic buffer 35 serves to buffer and restrain the lifting support plate 36, preventing the battery 100 from being damaged by impact during the lowering of the lifting support plate 36.

Referring to fig. 3 and 4, the jaw mechanism 37 includes a jaw upper support plate 371 fixed on a lower end surface of the lifting support plate 36; an adjusting electric cylinder 372 is formed on the lower end surface of the claw upper support plate 371; an adjusting driving plate 3731 is fixed on the piston rod of the adjusting cylinder 372; an adjusting horizontal supporting plate 373 is fixed on the bottom surface of the adjusting driving plate 3731; a carrying claw cylinder 374 is fixed on the bottom surface of the adjusting horizontal support plate 373; a pair of carrying claws 375 are respectively fixed to a pair of fingers of the carrying claw cylinder 374; the carrying claw 375 is L-shaped; the L-shaped carrying claw 375 can ensure that the battery does not fall off accidentally during carrying.

Referring to fig. 2 and 5, the rotation switching device 40 includes a rotation switching motor 41 fixed on the upper end surface of the work table 11; a circular plate-like switching support plate 42 is fixed to the upper end surface of the rotary switching motor 41; a pair of bearing seats 43 which are uniformly distributed circumferentially are arranged on the upper end surface of the switching support plate 42; a battery mounting seat 44 is rotatably arranged on the bearing seat 43; the battery seating seat 44 includes a battery seating plate 441 rotatably disposed on the bearing housing 43; an L-shaped length limiting seat 443 and two pairs of L-shaped width limiting seats 442 are fixed on the upper end surface of the battery placing plate 441; the length limiting seat 443 faces the end face in the width direction of the battery 100, and the two pairs of width limiting seats 442 face the two end faces in the length direction of the battery 100 respectively; the upper end surface of the battery mounting plate 441 is formed with a escape groove 4410 into which the lower ends of a pair of carrying claws 375 are inserted and moved; a pair of side supporting frames 421 which are uniformly distributed circumferentially are fixed on the upper end surface of the switching supporting plate 42; a side limiting cylinder 45 is fixed at the upper end of the side supporting frame 421; a side limiting pressure plate 451 is fixed on the piston rod of the side limiting electric cylinder 45; the side limiting pressing plate 451 faces the length limiting seat 443; the side limiting pressing plates 451 are in one-to-one correspondence with the battery seating seats 44 and abut against the batteries 100 of the respective sides; when in rotary switching, the battery 100 is placed on the battery placing plate 441 and is positioned between the two pairs of width limiting seats 442, the length limiting seat 443 and the side limiting pressing plate 451, and the battery 100 is clamped by the side limiting pressing plate 451 and the length limiting seat 443, so that the battery placing plate 441 cannot rotate accidentally, and the position accuracy of the battery 100 is further ensured.

Referring to fig. 6 to 8, the battery limit rotation device 50 includes a gantry 51 fixed on the upper end surface of the work table 11; a gear box 53 is arranged on the upper part of the portal frame 51; a rotary driving motor 52 is fixed on the upper end surface of the gear box 53; the input shaft of the gear box 53 is fixedly connected with the output shaft of the rotary driving motor 52, and a main driving plate 54 is fixed on the output shaft; a pair of welding limit lifting cylinders 55 are fixed on the lower end surface of the main driving plate 54; a vertical moving plate 56 is fixed at the lower end of a piston rod of the pair of welding limit lifting cylinders 55; a length claw cylinder 57 and a pair of opposite width abutment cylinders 58 are provided on the lower end face of the vertical moving plate 56; a width limiting moving plate 581 is fixed on a piston rod of the width abutting cylinder 58; a pair of width limiting moving plates 581 are fixed with a width abutting bar 582 on end surfaces thereof which are close to each other; the length jaw cylinder 57 includes three pairs of fingers and a gap for laser welding is provided between the three pairs of fingers.

Referring to fig. 6 to 8, four rectangular vertical sliding rails 541 are fixed on the lower end surface of the main driving plate 54; four rectangular L-shaped vertical connecting frames 563 are fixed on the upper end surface of the vertical moving plate 56; a vertical sliding block 564 is fixed on the vertical connecting frame 563; the vertical sliding blocks 564 vertically slide on the vertical sliding rails 541 of the respective sides; a pair of Z-shaped lower limiting frames 561 are fixed on the upper end surface of the vertical moving plate 56; a pair of L-shaped upper limiting frames are fixed on the lower end surface of the main driving plate 54; the horizontal part of the upper limit frame is positioned at the lower side of the horizontal part of the upper side of the lower limit frame 561 at the corresponding side; a limit bolt 562 is vertically screwed on the horizontal part of the upper side of the lower limit frame 561; the limit bolts 562 are positioned right above the horizontal part of the upper limit frame; the pair of limit bolts 562 may limit the highest position of the vertical moving plate 56 and the pair of limit bolts 562 may be lifted by rotation, and the highest position of the vertical moving plate 56 may be adjusted.

Referring to fig. 6 to 8, four rectangular horizontal guide rails 565 are fixed to the lower end surface of the vertical moving plate 56; a pair of horizontal sliders 5811 are fixed to the upper ends of the width-limiting moving plates 581; the horizontal slider 5811 is slidably disposed on the horizontal guide 565 on the corresponding side; this ensures accuracy of the direction of movement of the width abutment bar 582.

Referring to fig. 6 and 7, a pair of vertical portions of the gantry 51 are mounted with dust removal air suction nozzles 59; the pair of dust removal air suction nozzles 59 are positioned on one side of the portal frame 51 close to the laser welding device 60, one end of each dust removal air suction nozzle 59 is opposite to the welding position, and the other end of each dust removal air suction nozzle is connected with an external collecting device through a pipeline; during welding, the external collecting device works so that the dust removing suction nozzle 59 generates suction to suck the slag generated during welding.

Referring to fig. 9, the laser welding apparatus 60 includes an X-axis module 61, a Y-axis module 62, and a Z-axis module 63, and a welding laser head 64; the X-axis module 21 includes an X-axis slider moving in the conveying direction of the conveyor belt 20; the Y-axis module 22 includes a vertical link that moves perpendicular to the conveying direction of the conveyor belt 20; the vertical connecting frame comprises a Y-axis sliding block 621 and a vertical supporting frame 622 fixed on the upper end surface of the Y-axis sliding block 621; the Z-axis module 63 includes a Z-axis slider that moves in a vertical direction; the Y-axis module 63 is fixed on the X-axis slide block; the Z-axis module 63 is fixed on a vertical support 622; the welding laser head 64 is provided on the Z-axis slider and emits laser light in the horizontal direction; the X-axis sliding block, the Y-axis sliding block 621 and the Z-axis sliding block are all driven by a ball screw, and a braking structure is arranged on the ball screw; a dustproof gas wall generator 65 is arranged on the lower side of the welding laser head 64; a dust-proof air wall generator 65 is used to generate an air wall on the front side of the welding laser head 64 to prevent dust from entering.

The working principle of the soft package battery sealing welding equipment is as follows:

the battery 100 with the sealing plate arranged on the battery shell enters the working protective box 12 through the conveyor belt 20, and then the battery 100 is conveyed to the rotary switching device 40 through the rotary feeding and discharging device 30; then, the battery 100 is driven by the rotary switching device 40 to reach a welding position, the battery 100 is limited at the welding position by the battery limiting and rotating device 50, laser welding is carried out on a gap between the opposite sealing plate and the battery shell by emitting laser in the horizontal direction by the laser welding device 60, the battery 100 is driven by the battery limiting and rotating device 50 to rotate for one hundred eighty degrees, and then laser welding is carried out by the laser welding device 60, so that a pair of gaps between the sealing plate and the battery shell are welded in sequence.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A soft package battery seals welding equipment which characterized in that: comprises a workbench (10), a conveyor belt (20), a rotary feeding and discharging device (30), a rotary switching device (40), a battery limiting and rotating device (50) and a laser welding device (60); the workbench (10) comprises a workbench seat (11); a working protective box (12) is arranged on the working table seat (11); one end of the working protective box (12) is formed with a pair of feeding and discharging holes (120) for the conveyor belt (20) to horizontally pass through; the conveyor belt (20) passes through the working protective box (12) through a pair of feeding and discharging holes (120) and drives the battery to enter and leave the working protective box (12); the rotary feeding and discharging device (30), the rotary switching device (40), the battery limiting and rotating device (50) and the laser welding device (60) are arranged on the upper end face of the working table seat (11) and are positioned in the working protective box (12); the rotary feeding and discharging device (30), the rotary switching device (40), the battery limiting and rotating device (50) and the laser welding device (60) are sequentially far away from the conveyor belt (20); the rotary loading and unloading device (30) is used for conveying the battery (100) between the conveyor belt (20) and the rotary switching device (40); the rotary switching device (40) is used for switching the battery (100) between a welding position and a loading position; the battery limiting and rotating device (50) is used for limiting the battery (100) at a welding position and driving the battery (100) to intermittently rotate at equal angles; the laser welding device (60) is used for emitting laser in the horizontal direction to weld the sealing plate on the battery shell.

2. The soft pack battery seal welding apparatus of claim 1, wherein: the rotary feeding and discharging device (30) comprises a rotary supporting frame (33) which is intermittently and rotatably arranged on the upper end surface of the workbench base (11); a lifting support plate (36) is vertically arranged on the upper end surface of the rotary support frame (33) in a moving way; two ends of the lower end surface of the lifting supporting plate (36) are respectively provided with a claw mechanism (37) for grabbing the battery (100); a pair of the claw mechanisms (37) are symmetrically arranged relative to the rotary support frame (33).

3. The soft pack battery seal welding apparatus of claim 2, wherein: the jaw mechanism (37) includes a carrying jaw cylinder (374); a pair of carrying claws (375) are respectively fixed to a pair of fingers of the carrying claw cylinder (374).

4. A soft pack battery seal welding apparatus as claimed in claim 3, wherein: the jaw mechanism (37) further comprises a jaw upper support plate (371) fixed on the lower end surface of the lifting support plate (36); an adjusting electric cylinder (372) is formed on the lower end face of the claw upper supporting plate (371); an adjusting driving plate (3731) is fixed on a piston rod of the adjusting electric cylinder (372); an adjusting horizontal supporting plate (373) is fixed on the bottom surface of the adjusting driving plate (3731); the carrying claw cylinder (374) is fixed on the lower end face of the adjusting horizontal supporting plate (373).

5. The soft pack battery seal welding apparatus of claim 1, wherein: the rotation switching device (40) comprises a rotation switching motor (41) fixed on the upper end surface of the workbench base (11); a circular plate-shaped switching support plate (42) is fixed on the upper end surface of the rotary switching motor (41); a pair of bearing seats (43) which are uniformly distributed on the circumference are arranged on the upper end surface of the switching support plate (42); a battery placement seat (44) is rotatably arranged on the bearing seat (43); the battery placement seat (44) is used for placing a battery (100); a pair of side supporting frames (421) with evenly distributed circumferences are arranged on the upper end face of the switching supporting plate (42); a side limiting electric cylinder (45) is fixed at the upper end of the side supporting frame (421); a side limiting pressing plate (451) is fixed on a piston rod of the side limiting electric cylinder (45); the side limiting pressing plates (451) are in one-to-one correspondence with the battery mounting seats (44) and are used for abutting against the batteries (100) on the corresponding sides.

6. A soft pack battery seal welding apparatus according to claim 1 or 5, wherein: the battery limiting and rotating device (50) comprises a portal frame (51) fixed on the upper end surface of the workbench seat (11); a main driving plate (54) is rotatably arranged at the top of the portal frame (51); a vertical moving plate (56) is vertically arranged on the lower end surface of the main driving plate (54) in a moving way; a length claw cylinder (57) and a pair of opposite width abutting cylinders (58) are arranged on the lower end surface of the vertical moving plate (56); a width limiting moving plate (581) is fixed on a piston rod of the width abutting cylinder (58); a pair of width limiting moving plates (581) are fixed with a width abutting strip (582) on the end surfaces close to each other; the length jaw cylinder (57) includes three pairs of fingers and a gap for laser welding is provided between the three pairs of fingers.

7. The soft pack battery seal welding apparatus of claim 6, wherein: a pair of vertical parts of the portal frame (51) are provided with dust removal air suction nozzles (59); the pair of dust removal air suction nozzles (59) are positioned on one side of the portal frame (51) close to the laser welding device (60), one end of each dust removal air suction nozzle (59) is opposite to the welding position, and the other end of each dust removal air suction nozzle is connected with an external collecting device through a pipeline.

8. The soft pack battery seal welding apparatus of claim 1, wherein: the laser welding device (60) comprises an X-axis module (61), a Y-axis module (62), a Z-axis module (63) and a welding laser head (64); the X-axis module (61) comprises an X-axis sliding block moving along the conveying direction of the conveying belt (20); the Y-axis module (62) comprises a vertical link that moves perpendicular to the conveying direction of the conveyor belt (20); the Z-axis module (63) comprises a Z-axis sliding block which moves in the vertical direction; the Y-axis module (62) is arranged on the X-axis sliding block; the Z-axis module (63) is arranged on the vertical connecting frame; the welding laser head (64) is arranged on the Z-axis sliding block.

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