CN220050420U - Battery module laser welding equipment - Google Patents

Abstract

The utility model discloses battery module laser welding equipment, which comprises a translation support frame arranged on the support frame, a translation seat horizontally sliding on the translation support frame and a translation driving piece for driving the translation seat; the lifting device comprises a pair of lifting mechanisms; the lifting mechanism comprises a lifting support plate vertically arranged between the pair of translation assemblies and a lifting assembly for driving the lifting support plate; the translation assembly is used for driving the module tray to translate; the lifting mechanism is used for driving the module tray to vertically lift and the lifting support plate is used for supporting the module tray; the module tray comprises a tray body and a module limiting mechanism arranged on the tray body; the translation seat is provided with a connecting piece for connecting the tray body; the laser welding device is used for welding the aluminum sheet on the battery module. In the welding process of one battery module, the next battery module reaches the welding position, so that the welding efficiency is greatly improved.

Description

Battery module laser welding equipment

Technical Field

The utility model relates to the field of battery module welding, in particular to battery module laser welding equipment.

Background

When the battery modules are assembled, a plurality of battery modules are bound into a whole, and then all the battery modules are connected in series by welding conductive aluminum sheets on adjacent battery modules.

When current battery module welds conductive aluminum sheet, a battery module carries out feeding, welding and ejection of compact in proper order, just feeds after one battery module ejection of compact, just other battery module ejection of compact, is unfavorable for improving welding efficiency like this.

Disclosure of Invention

In order to improve welding efficiency, the utility model provides a battery module laser welding device.

The utility model provides a battery module laser welding device which adopts the following technical scheme:

a battery module laser welding device comprises a base, a support frame, a translation device, a lifting device and a laser welding device; the support frame is arranged on the base; the translation device comprises a pair of translation mechanisms; the translation mechanism comprises a pair of translation assemblies; the translation assembly comprises a translation support frame arranged on the support frame, a translation seat horizontally sliding on the translation support frame and a translation driving piece for driving the translation seat; the lifting device comprises a pair of lifting mechanisms; the lifting mechanisms are in one-to-one correspondence with the translation mechanisms; the lifting mechanism comprises a lifting support plate vertically arranged between a pair of translation assemblies and a lifting assembly for driving the lifting support plate; the translation assembly is used for driving the module tray to translate; the lifting mechanism is used for driving the module tray to vertically lift and the lifting supporting plate is used for supporting the module tray; the module tray comprises a tray body and a module limiting mechanism arranged on the tray body; the module limiting mechanism is used for limiting the battery module on the tray body; the translation seat is provided with a connecting piece for connecting the tray body; the laser welding device is used for welding the aluminum sheet on the battery module.

Through adopting above-mentioned technical scheme, when a module tray rises to the uppermost end under the drive of a promotion backup pad and laser welding device carries out the aluminum sheet welding to the battery module on the module tray, next module tray is connected with a pair of connecting piece of opposite side, then a pair of translation driving piece drives a pair of translation seat and translates in step, drive the module tray through a pair of connecting piece and inwards remove like this, the promotion subassembly of opposite side drives the promotion backup pad and rises to make next module tray rise to the uppermost end like this, make next battery module arrive welding position, like this in a battery module welding process, next battery module reaches welding position, welding efficiency has been improved greatly like this.

Optionally, the connecting piece is I-shaped; two ends of the translation direction of the tray body are respectively provided with a pair of connecting perforations through which the connecting piece vertically passes.

Through adopting above-mentioned technical scheme, the connecting piece can vertically pass and connect the perforation, at the in-process that the module tray risees, the tray body can connect or break away from the connecting piece naturally, simple structure like this, convenient to use.

Optionally, a pair of translation supporting frames of the same translation mechanism are respectively provided with a roller bar.

Through adopting above-mentioned technical scheme, at the translation in-process of module tray, the bottom and the gyro wheel strip contact of tray body to make the module tray translation smooth and easy, be favorable to the module tray feeding.

Optionally, two groups of guide mechanisms are arranged on the support frame; the guide mechanisms are in one-to-one correspondence with the translation mechanisms; the guide mechanism comprises a pair of guide plates; a pair of said translation assemblies positioned between a pair of said guide plates; the guide plate is parallel to the moving direction of the module tray, and the inlet end of the guide plate is bent outwards; the tray body is cuboid and is provided with guide rollers respectively at four angles.

By adopting the technical scheme, in the moving process of the module tray, the guide plate is contacted with the guide roller, so that the damage of the guide plate and the tray body caused by hard contact can be effectively avoided, and the moving smoothness is improved; the entering ends of the pair of guide plates are outwards bent, so that the smoothness of entering the module tray can be improved.

Optionally, four limit inserting columns distributed in rectangular arrays are fixed on the upper end surface of the lifting supporting plate; four limiting jacks for the limiting plug posts to vertically pass through are arranged on the tray body.

Through adopting above-mentioned technical scheme, at the lift in-process of module tray, four spacing posts of inserting are vertical inserts in the spacing jack of corresponding side, and the module tray can not remove horizontal migration to improve its position stability.

Optionally, the device further comprises a tool; the tool covers the upper end of the battery module from top to bottom; the fixture is provided with a plurality of positioning limiting holes with upper and lower openings for vertically placing the aluminum sheets.

Through adopting above-mentioned technical scheme, before the welding, frock top-down covers the upper end at battery module, then the vertical arrangement spacing hole of putting into of aluminum sheet for the relative position between aluminum sheet and the battery module remains stable and accurate like this, is favorable to improving aluminum sheet welding quality.

Optionally, the welding device also comprises an integral welding device; the integral welding device comprises a pair of integral welding mechanisms; the integral welding mechanisms are in one-to-one correspondence with the lifting mechanisms, and are positioned right above the lifting mechanisms; the integral welding mechanism comprises a welding fixing plate and a plurality of welding head assemblies which are uniformly distributed along the vertical direction of the translation direction of the module tray; the welding fixing plate is provided with rectangular welding perforations with upper and lower openings; the welding head assembly includes an insulating plate and a pair of welding heads; the welding head is opposite to the welding perforation; the insulating plate is arranged on the lower end face of the welding fixing plate; the pair of welding heads are elastically and vertically arranged on the insulating plate in a penetrating way; the welding heads are distributed along the translation direction of the module tray; the upper opening and the lower opening of the welding head are arranged.

Through adopting above-mentioned technical scheme, when the module tray risees, the bonding tool elasticity supports and leans on the aluminum sheet, then laser passes the bonding tool and welds, makes the position of aluminum sheet keep accurate when welding like this.

Optionally, a pair of smoke pipes is arranged on the upper end face of the welding fixing plate; the length direction of the smoke tube is perpendicular to the translation direction of the module tray; the pair of smoke pipes are positioned at two sides of the welding perforation; one end of the smoke tube, which is close to the welding perforation, is provided with a plurality of smoke inlet holes which are uniformly distributed along the length direction of the smoke tube; the smoke tube is connected with an external smoke exhausting device.

Through adopting above-mentioned technical scheme, when laser welding, can produce the cigarette, under the effect of outside smoking device, the cigarette is discharged along the tobacco pipe, the effectual workshop operational environment that improves is favorable to the healthy of staff.

Optionally, the laser welding device comprises a pair of X-axis driving mechanisms, a Y-axis driving mechanism, a Z-axis driving mechanism and a laser welding head; the pair of X-axis driving mechanisms are positioned at two sides of the translation device; the X-axis driving mechanism comprises an X-axis moving seat and an X-axis driving assembly for driving the X-axis moving seat to horizontally move; the moving direction of the X-axis moving seat is parallel to the translation direction of the module tray; the Y-axis driving mechanism comprises a Y-axis moving seat and a Y-axis driving assembly for driving the Y-axis moving seat to horizontally move; the Y-axis driving assembly is arranged on the pair of X-axis moving seats; the Z-axis driving mechanism comprises a Z-axis moving seat and a Z-axis driving assembly for driving the Z-axis moving seat to vertically move; the Z-axis driving assembly is arranged on the Y-axis moving seat; the laser welding head is arranged on the Z-axis moving seat.

By adopting the technical scheme, the welding of a single battery module and the welding switching of two battery modules can be realized by moving the laser welding head XYZ in three directions, which is beneficial to improving the welding efficiency.

Optionally, two sides of the laser welding head are respectively provided with a side smoke exhaust pipe; the pair of side smoke exhaust pipes are distributed along the moving direction of the Y-axis moving seat; the side smoke exhaust pipe is vertically arranged, the upper end of the side smoke exhaust pipe is connected with an external smoke exhausting device, and the lower end of the side smoke exhaust pipe is right welded to the welding position.

Through adopting above-mentioned technical scheme, when laser welding, can produce the cigarette, under the effect of outside smoking device, the cigarette discharges along the side exhaust pipe, the effectual workshop operational environment that has improved is favorable to the healthy of staff.

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

1. in the welding process of one battery module, the next battery module reaches the welding position, so that the welding efficiency is greatly improved.

2. The relative position between the aluminum sheet and the battery module is kept stable and accurate, which is beneficial to improving the welding quality of the aluminum sheet.

3. And smoke generated during welding is discharged, so that the working environment of a production workshop is effectively improved, and the health of workers is facilitated.

Drawings

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

Fig. 2 is a schematic view of the structure of the present utility model when the protective cover 20 is removed.

Fig. 3 is a schematic view of the structure of the laser welding apparatus 70 and the integral welding mechanism 60 according to the present utility model.

Fig. 4 is a schematic structural view of the translation mechanism of the present utility model.

Fig. 5 is a schematic diagram of the elevation mechanism 50 of the present utility model in elevation.

Fig. 6 is a schematic top view of the integral welding mechanism 60 of the present utility model.

Fig. 7 is a schematic view of the structure of the section A-A of fig. 6 according to the present utility model.

Fig. 8 is a schematic view of the structure of the section B-B of fig. 6 according to the present utility model.

Fig. 9 is a partially enlarged structural schematic view of fig. 8C according to the present utility model.

Fig. 10 is a schematic view of a portion of the weld head assembly 64 of the present utility model.

Fig. 11 is a schematic view of the structure of the module tray 80 of the present utility model in which the fixture 90, the battery module 100, and the aluminum sheet 101 are placed.

Fig. 12 is a schematic structural view of the module tray 80 of the present utility model.

Fig. 13 is a schematic view of the explosive construction of the telescopic driving member 853 of the present utility model.

Fig. 14 is a schematic structural diagram of a tooling 90 of the present utility model.

Fig. 15 is a schematic structural view of a laser welding apparatus 70 of the present utility model.

Reference numerals illustrate:

10. a base; 11. a support chassis; 12. a side case; 13. an upper bracket; 14. a middle bracket; 15. an upper limit frame;

20. a protective cover;

30. a support frame; 31. a center support; 32. a side bracket;

40. a translation assembly; 41. a guide plate; 411. a translation limiting frame; 42. translating the support frame; 421. translating the short support plate; 422. translating the long support plate; 43. a roller bar; 44. translating the slide rail; 45. a translation seat; 451. a translation driving block; 46. a connecting piece; 47. translating the screw; 48. translating the limit bolt;

50. a lifting mechanism; 51. lifting the base; 52. lifting the electric cylinder; 53. lifting the support plate; 54. limiting plug posts;

60. an integral welding mechanism; 61. welding a fixing plate; 610. welding perforation; 62. a smoke tube bracket; 63. a smoke tube; 630. a smoke inlet hole; 64. a welding head assembly; 641. an insulating plate; 6410. a vertically moving hole; 642. welding head; 6421. a welding head connecting plate; 643. a pressure spring; 644. a connecting bolt;

70. a laser welding device; 71. laser welding the support frame; 72. an X-axis driving assembly; 721. an X-axis moving seat; 73. a Y-axis drive assembly; 731. a Y-axis moving seat; 74. a Z-axis drive assembly; 741. a Z-axis moving seat; 75. a laser welding head; 76. a side smoke exhaust pipe;

80. a module tray; 81. a tray body; 810. connecting the through holes; 811. limiting jack; 82. a length footstock; 84. a width-fixing limit group; 841. a width fixing limit seat; 842. a width-fixed limit stop bar; 85. a width movement limit group; 851. a width movement limiting seat; 852. a width movement limiting stop bar; 8521. a telescopic guide rod; 8522. a stop ring; 8523. a telescopic driving rod; 853. a telescopic driving member; 8531. a telescopic sleeve; 8532. a middle frame is hinged; 8533. a telescopic drive handle; 8534. a handle sleeve; 86. a hook;

90. a tool; 91. a tooling main board; 910. a limiting hole is arranged; 92. a side blocking plate;

100. a battery module; 101. an aluminum sheet.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-15.

The present utility model discloses a battery module laser welding apparatus for completing a process of laser welding an aluminum sheet 101 to a battery module 100 on a module tray 80.

Referring to fig. 11 to 13, the module tray 80 includes a tray body 81 and a module limiting mechanism provided on the tray body 81; the tray body 81 is a rectangular parallelepiped; the modular spacing mechanism includes a pair of length-limiting sets, a width-fixing-limiting set 84, and a width-moving-limiting set 85.

Referring to fig. 11 to 13, a pair of length limiting groups are distributed along the length direction of the tray body 81; the length limiting group includes a pair of length footers 82 distributed along the width direction of the tray body 81 and the length footers 82 are fixed on the upper end surface of the tray body 81 by bolts.

Referring to fig. 11 to 13, the width fixing limit groups 84 and the width movement limit groups 85 are distributed along the width direction of the tray body 81; the width fixing and limiting set 84 comprises a width fixing and limiting seat 841 and a width fixing and limiting stop 842 fixed at one end of the width fixing and limiting seat 841 close to the width moving and limiting set 85; the width movement limiting group 85 includes a width movement limiting seat 851 and a width movement limiting bar 852; the width movement limiting stop bar 852 is positioned on one side of the width movement limiting seat 851, which is close to the width fixing limiting group 84, and a pair of telescopic guide rods 8521 and telescopic driving rods 8523 are fixed on the end surface of the width movement limiting stop bar 852, which is close to the width movement limiting seat 851; the axial directions of the telescopic guide rod 8521 and the telescopic drive rod 8523 are parallel to the width direction of the tray main body 81; the telescopic guide rod 8521 and the telescopic driving rod 8523 vertically penetrate through the width movement limiting seat 851; one end of the telescopic guide rod 8521, which is far away from the width movement limiting stop bar 852, is sleeved with a stop ring 8522; the stop ring 8522 is radially penetrated and is screwed with a radial limit bolt; the radial limit bolt radially abuts against the telescopic guide rod 8521; the end surface of the width movement limiting seat 851, which is far from the width fixing limiting group 84, is provided with a telescopic driving member 853.

Referring to fig. 12 and 13, the telescopic driving member 853 includes a telescopic sleeve 8531, an articulated intermediate frame 8532, and a telescopic driving handle 8533; the telescopic sleeve 8531 is fixed on the end surface of the width movement limiting seat 851 far from the width fixing limiting group 84 and the telescopic driving rod 8523 coaxially penetrates through the telescopic sleeve 8531; the bottom of the telescopic driving handle 8533 is L-shaped, one end far away from the corner is hinged on the telescopic driving rod 8523, and the corner is hinged on one end of the hinged middle frame 8532; the other end of the hinged middle frame 8532 is hinged on the telescopic sleeve 8531; the upper end of the telescopic driving handle 8533 is sleeved with a handle sleeve 8534.

When operating, an operator pulls the telescopic driving handle 8533 up and down, the telescopic driving rod 8523 is driven to axially move, so that the width movement limiting stop bar 852 is driven to be far away from or close to the battery module 100, and thus the battery module 100 is limited by the two pairs of length top seats 82 and the width fixing limiting stop bar 842.

In order to facilitate the overall transportation of the module tray 80, referring to fig. 12, four rectangular hooks 86 are screwed on the upper end surface of the tray body 81.

Referring to fig. 11 and 14, the upper end of the battery module 100 is vertically sleeved with a tool 90 from top to bottom; the tooling 90 comprises a rectangular tooling main board 91; the periphery of the tooling main board 91 is respectively fixed with a side blocking plate 92 extending downwards; the rectangular space formed by the side barrier plates 92 at the periphery has the length and width equal to those of the battery module 100; a plurality of positioning limiting holes 910 with upper and lower openings for vertically placing the aluminum sheet 101 are formed on the tooling main board 91; when welding, after the battery module 100 is limited on the tray body 81, the tool 90 is vertically sleeved at the upper end of the battery module 100 from top to bottom, and then the aluminum sheet 101 is vertically placed into each of the positioning limiting holes 910, so that the relative position between the aluminum sheet 101 and the battery module 100 is accurate.

Referring to fig. 1 to 3, a battery module laser welding apparatus includes a base 10, a support frame, a translation device, a lifting device, and a laser welding device 70; the translation device is used for driving the module tray 80 to translate; the lifting device is used for driving the module tray 80 to vertically lift; the laser welding device 70 is used for welding an aluminum sheet 101 on the battery module 100; a protective cover 20 is fixed on the base 10; the laser welding device 70 is located within the protective cover 20.

Referring to fig. 1 to 3, the base 10 includes a support chassis 11; the two ends of the upper end surface of the supporting underframe 11 are respectively fixed with a side box body 12; the support frame 30 includes a center bracket 31 and a pair of side brackets 32; the center bracket 31 and the pair of side brackets 32 are fixed to the support chassis 11 and located between the pair of side cases 12; the center bracket 31 is located between the pair of side brackets 32 and the side brackets 32 are close to the side case 12 on the respective sides; an upper bracket 13 is fixed on the side box body 12; a middle bracket 14 is fixed on the upper end surface of the center bracket 31; an integral welding device is fixed on the pair of upper brackets 13 and the middle bracket 14.

Referring to fig. 3 and 4, the translation device includes a pair of translation mechanisms; the translation mechanism includes a pair of translation assemblies 40; the translation assembly 40 comprises a translation support frame 42, a translation seat 45 horizontally arranged on the translation support frame 42 in a sliding manner, and a translation driving piece for driving the translation seat 45; the translation supporting frame 42 is fixed on the upper end surface of the side bracket 32 or the upper end surface of the center bracket 31; the translation supporting frame 42 includes a pair of translation long supporting plates 422 parallel to the translation direction of the module tray 80 and a pair of translation short supporting plates 421 perpendicular to the translation direction of the module tray 80; the translation drive comprises a translation screw 47 and a translation drive motor; the translation screw 47 is rotatably connected between a pair of translation short support plates 421; the axial direction of the translation screw 47 is parallel to the translation long support plate 422; the translation driving motor is fixed on a translation short support plate 421 far away from the entrance end of the module tray 80; an output shaft of the translation driving motor is in threaded connection with the translation screw 47; a translation driving block 451 is fixed at the lower end of the translation seat 45; the translation driving block 451 is screwed on the translation screw 47 on the corresponding side; a translation sliding block is fixed on the lower end surface of the translation seat 45; a pair of translation long support plates 422 in the middle of the translation mechanism are respectively fixed with a translation sliding rail 44; the translation slide slides on the translation slide 44; the direction of the translation sliding rail 44 is parallel to the axial direction of the translation screw 47; an I-shaped connecting piece 46 is fixed at one end of the translation seat 45, which is close to the inlet end of the module tray 80; the tray body 81 has a pair of long sides with a T-shaped connecting hole 810 formed on the end surface thereof, respectively, through which the end of the connecting member 46 remote from the translation seat 45 vertically passes.

During operation, the tray body 81 vertically rises to enable the pair of connecting pieces 46 to be vertically inserted into the pair of connecting holes 810 on one side of the tray body 81, then the pair of translation driving motors drive the pair of translation screws 47 to rotate, the pair of translation seats 45 are driven to move along the direction of the translation sliding rail 44 by the translation driving blocks 451 in screwed connection, and at this time, the tray body 81 translates on the pair of translation supporting frames 42.

In order to improve the translational smoothness of the tray body 81, referring to fig. 3 and 4, a pair of translational long support plates 422 outside the translational mechanism are respectively fixed with roller bars 43; the pair of translation rails 44 is located between the pair of roller bars 43 and the top of the pair of roller bars 43 is higher than the bottom of the translation rails 44, so that during the translation of the tray body 81, the tray body 81 moves against the rollers of the pair of roller bars 43, thereby improving the translation smoothness of the tray body 81.

To ensure the accuracy of the direction in which the tray body 81 moves; referring to fig. 3, 4 and 12, two sets of guide mechanisms are arranged on the support frame; the guide mechanisms are in one-to-one correspondence with the translation mechanisms; the guide mechanism includes a pair of guide plates 41; the guide plate 41 is fixed on the upper end surface of the side bracket 32 or the upper end surface of the center bracket 31; a pair of roller bars 43 are located between the pair of guide plates 41; the guide plate 41 is parallel to the moving direction of the module tray 80; one end of the guide plate 41, which is close to the entrance end of the module tray 80, is bent outwards; guide rollers 87 are rotatably connected to the four corners of the tray body 81, respectively.

In order to make the module tray 80 accurately reach the lifting position, one end of the end faces of the pair of guide plates 41, which are close to each other, far from the entering end of the module tray 80 is respectively fixed with an L-shaped translation limiting frame 411; the translation limiting frame 411 is penetrated and connected with a translation limiting bolt 48 in a threaded manner; the axial direction of the translation limit bolt 48 is parallel to the translation direction of the module tray 80; when the module tray 80 is in the raised position, the head of the translation stop bolt 48 abuts the end face of the tray body 81 remote from its entry end.

Referring to fig. 2 and 5, the lifting device includes a pair of lifting mechanisms 50; the lifting mechanisms 50 are in one-to-one correspondence with the translation mechanisms; the lifting mechanism 50 includes a lifting support plate 53 vertically lifting and lowering provided between the pair of translation assemblies 40, a lifting assembly for driving the lifting support plate 53, and a lifting base 51; a pair of lifting bases 51 fixed to the support chassis 11; the lifting bases 51 are located on both sides of the center bracket 31 and between the pair of side brackets 32; the lifting assembly includes a pair of lifting cylinders 52 secured to a lifting base 51; the lift support plate 53 is fixed to the piston rods of the pair of lift cylinders 52.

In order to improve the stability of the module tray 80 during vertical lifting, referring to fig. 5 and 12, four limit posts 54 distributed in rectangular arrays are fixed on the upper end surface of the lifting support plate 53; four limit insertion holes 811 through which the limit posts 54 vertically pass are formed in the tray body 81.

In order to limit the lifting height of the module tray 80, referring to fig. 3, an upper limit frame 15 is fixed on the upper bracket 13; a pair of upper limiting frames 15 are fixed on the middle bracket 14; when the module tray 80 is uppermost, a pair of length footers 82 on the respective sides abut against the upper limit stops 15 on the respective sides.

In operation, the pair of lifting cylinders 52 drives the lifting support plates 53 to move vertically upwards, in this process, the four limiting posts 54 are respectively inserted into the limiting insertion holes 811 from bottom to top, and then the lifting support plates 53 drive the module tray 80 to rise together until the two pairs of length top seats 82 abut against the upper limiting frames 15 on both sides.

Referring to fig. 2, 6-10, the integral welding apparatus includes a pair of integral welding mechanisms 60; the integral welding mechanisms 60 and the lifting mechanisms 50 are in one-to-one correspondence, and the integral welding mechanisms 60 are positioned right above the lifting mechanisms 50; the integral welding mechanism 60 comprises a welding fixing plate 61 and a plurality of welding head assemblies 64 which are uniformly distributed along the vertical direction of the translation direction of the module tray 80; one end of the welding fixing plate 61 is fixed to the upper bracket 13, the other end is fixed to the middle bracket 14 and the welding fixing plate 61 is horizontally disposed; the welding fixing plate 61 is formed with a welding hole 610 of a rectangular groove having an upper and lower opening.

Referring to fig. 6-10, the horn assembly 64 includes an insulating plate 641 and a pair of horns 642; the welding head 642 is opposite to the welding perforation 610; the insulating plate 641 is fixed on the lower end surface of the welding fixing plate 61; the insulating plate 641 has a pair of vertically moving holes 6410 formed therein to be opened up and down; a pair of vertical moving holes 6410 are distributed along the translational direction of the module tray 80; the upper opening and the lower opening of the welding head 642 are arranged; the welding head 642 includes a head body and a head web 6421 formed on the head body; the welding head main body consists of an upper circular cylinder and a lower circular table shell, and the circular cylinder and the circular table shell are coaxially arranged; the diameter of the upper end of the round table shell is larger than that of the lower end of the round table shell, and the inner diameter and the outer diameter of the upper end of the round table shell are respectively the same as the inner diameter and the outer diameter of the circular cylinder; the insulating plate 641 is vertically penetrated with a plurality of connecting bolts 644 from top to bottom; the lower end of the connecting bolt 644 is screwed on the welding head connecting plate 6421; the screw rod of the connecting bolt 644 is sleeved with a pressure spring 643; the upper end of the compression spring 643 abuts against the insulating plate 641 and the lower end abuts against the welding head connecting plate 6421.

During the lifting of the modular tray 80, the tooling 90 will contact the welding head 642, and when the modular tray 80 is lifted to the uppermost end, the welding head 642 abuts against the aluminum sheet 101, so that the aluminum sheet 101 is limited by the welding head 642 and the positioning limiting hole 910 on the tooling 90, which is beneficial for the subsequent laser welding.

Referring to fig. 2 and 15, the laser welding apparatus 70 includes a pair of X-axis drive mechanisms, Y-axis drive mechanisms, Z-axis drive mechanisms, and a laser welding head 75; a laser welding support frame 71 is fixed on the upper end surface of the side box body 12; the X-axis driving mechanism includes an X-axis moving block 721 and an X-axis driving assembly 72 for driving the X-axis moving block 721 to move horizontally; the X-axis driving components 72 are in one-to-one correspondence with the laser welding support frames 71 and the X-axis driving components 72 are fixed on the upper end surfaces of the laser welding support frames 71 on the corresponding sides; the moving direction of the X-axis moving seat 721 is parallel to the translation direction of the module tray 80; the Y-axis driving mechanism comprises a Y-axis moving seat 731 and a Y-axis driving assembly 73 for driving the Y-axis moving seat 731 to move horizontally; the Y-axis driving assembly 73 is fixed to a pair of X-axis moving seats 721; the Z-axis driving mechanism comprises a Z-axis moving seat 741 and a Z-axis driving assembly 74 for driving the Z-axis moving seat 741 to vertically move; the Z-axis driving assembly 74 is fixed on the Y-axis moving seat 731 and the Z-axis driving assembly 74 is vertically disposed; the laser welding head 75 is fixed on the Z-axis moving seat 741; wherein the X-axis drive assembly 72, the Y-axis drive assembly 73, and the Z-axis drive assembly 74 are all linear modules.

In operation, the laser welding head 75 can reach each welding position through the X-axis driving assembly 72 and the Y-axis driving assembly 73, which is beneficial to multi-point welding; the Z-axis driving assembly 74 drives the laser welding head 75 to vertically move so as to control the distance between the laser welding head 75 and the welding point, thereby improving the welding quality.

Referring to fig. 6 to 8, two sets of placement sets are provided on the upper end surface of the welding fixture plate 61; the two placement sets are respectively positioned at two sides of the welding perforation 610; the arrangement group comprises a pair of smoke tube brackets 62 fixed on the upper end face of the welding fixing plate 61; a pair of smoke tube brackets 62 are provided with a smoke tube 63 which is horizontally arranged; the axial direction of the smoke tube 63 is parallel to the length direction of the welding perforation 610; one end of the smoke tube 63 near the welding perforation 610 is provided with a plurality of smoke inlet holes 630 which are uniformly distributed along the length direction; the smoke tube 63 is connected to an external smoke evacuation device.

Referring to fig. 15, side smoke exhaust pipes 76 are provided on both sides of the laser welding head 75, respectively; the pair of side smoke discharge pipes 76 are distributed along the moving direction of the Y-axis moving seat 731; the side fume tube 76 is disposed vertically and has an upper end connected to an external fume extractor and a lower end in a welded position.

Under the action of the external smoke exhausting device, smoke generated during laser welding is exhausted out of the workshop along the smoke pipe 63 and the side smoke exhaust pipe 76, so that the working environment of the workshop is effectively improved, and the health of workers is facilitated.

The utility model relates to a working principle of a battery module laser welding device, which comprises the following steps:

the lifting support plate 53 at one side is at the uppermost end, and the laser welding device 70 welds the battery modules 100 on the module tray 80 on the lifting support plate 53;

in this process, the battery module 100 to be welded is mounted on the other module tray 80 and the tool 90 is sleeved on the upper end of the battery module 100 and the aluminum sheet 101 is put in; then vertically sleeving a pair of connecting through holes 810 on the tray body 81 on a pair of connecting pieces 46; then, the pair of translation driving pieces drive the pair of translation seats 45 to move together, the module tray 80 translates into until reaching the right upper side of the lifting supporting plate 53 at the other side, then the lifting assembly drives the lifting supporting plate 53 to ascend, so that the two module trays 80 are at the same height, then the module tray 80 where the battery module 100 is positioned after welding is descended along with the lifting supporting plate 53, at the same time, the laser welding device 70 welds the battery module 100 which is just ascended, the welded battery module 100 is discharged, and the next module tray 80 with the battery module 100 to be welded is fed according to the principle; in the welding process of one battery module, the next battery module reaches the welding position, so that the welding efficiency is greatly improved.

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 (10)

1. A battery module laser welding equipment, its characterized in that: comprises a base (10), a supporting frame, a translation device, a lifting device and a laser welding device (70); the support frame is arranged on the base (10); the translation device comprises a pair of translation mechanisms; the translation mechanism includes a pair of translation assemblies (40); the translation assembly (40) comprises a translation support frame (42) arranged on the support frame, a translation seat (45) horizontally sliding on the translation support frame (42) and a translation driving piece for driving the translation seat (45); the lifting device comprises a pair of lifting mechanisms (50); the lifting mechanisms (50) are in one-to-one correspondence with the translation mechanisms; the lifting mechanism (50) comprises a lifting support plate (53) vertically arranged between a pair of translation assemblies (40) and a lifting assembly for driving the lifting support plate (53); the translation assembly (40) is used for driving the module tray (80) to translate; the lifting mechanism (50) is used for driving the module tray (80) to vertically lift and the lifting supporting plate (53) is used for supporting the module tray (80); the module tray (80) comprises a tray body (81) and a module limiting mechanism arranged on the tray body (81); the module limiting mechanism is used for limiting the battery module (100) on the tray body (81); a connecting piece (46) for connecting the tray body (81) is arranged on the translation seat (45); the laser welding device (70) is used for welding an aluminum sheet (101) on the battery module (100).

2. The battery module laser welding apparatus according to claim 1, wherein: the connecting piece (46) is I-shaped; two ends of the translation direction of the tray body (81) are respectively provided with a pair of connecting perforations (810) for the connecting piece (46) to vertically pass through.

3. The battery module laser welding apparatus according to claim 1, wherein: and a pair of translation supporting frames (42) of the same translation mechanism are respectively provided with a roller bar (43).

4. The battery module laser welding apparatus according to claim 2, wherein: two groups of guide mechanisms are arranged on the support frame; the guide mechanisms are in one-to-one correspondence with the translation mechanisms; the guide mechanism comprises a pair of guide plates (41); a pair of said translation assemblies (40) being located between a pair of said guide plates (41); the guide plate (41) is parallel to the moving direction of the module tray (80) and the entering end is bent outwards; the tray body (81) is rectangular and guide rollers (87) are respectively arranged at four corners.

5. The battery module laser welding apparatus according to claim 1, wherein: four limit inserting posts (54) distributed in rectangular arrays are fixed on the upper end surface of the lifting supporting plate (53); four limiting jacks (811) through which the limiting plug posts (54) vertically penetrate are arranged on the tray body (81).

6. The battery module laser welding apparatus according to claim 1, wherein: also comprises a tool (90); the tool (90) covers the upper end of the battery module (100) from top to bottom; a plurality of positioning limiting holes (910) with upper and lower openings for vertically placing the aluminum sheet (101) are formed in the tool (90).

7. The battery module laser welding apparatus according to claim 1, wherein: the device also comprises an integral welding device; the integral welding apparatus includes a pair of integral welding mechanisms (60); the integral welding mechanisms (60) are in one-to-one correspondence with the lifting mechanisms (50), and the integral welding mechanisms (60) are positioned right above the lifting mechanisms (50); the integral welding mechanism (60) comprises a welding fixing plate (61) and a plurality of welding head assemblies (64) which are uniformly distributed along the vertical direction of the translation direction of the module tray (80); a rectangular welding perforation (610) with upper and lower openings is arranged on the welding fixing plate (61); the welding head assembly (64) includes an insulating plate (641) and a pair of welding heads (642); the welding head (642) is opposite to the welding perforation (610); the insulating plate (641) is arranged on the lower end surface of the welding fixed plate (61); a pair of welding heads (642) elastically and vertically penetrate through the insulating plate (641); a pair of welding heads (642) distributed along the translation direction of the modular tray (80); the welding head (642) is arranged at the upper opening and the lower opening.

8. The battery module laser welding apparatus according to claim 7, wherein: a pair of smoke pipes (63) are arranged on the upper end face of the welding fixing plate (61); the length direction of the smoke tube (63) is perpendicular to the translation direction of the module tray (80); a pair of said smoke tubes (63) are located on either side of said weld penetration (610); one end of the smoke tube (63) close to the welding perforation (610) is provided with a plurality of smoke inlet holes (630) which are uniformly distributed along the length direction of the smoke tube; the smoke tube (63) is connected with an external smoke exhausting device.

9. The battery module laser welding apparatus according to claim 1, wherein: the laser welding device (70) comprises a pair of X-axis driving mechanisms, a Y-axis driving mechanism, a Z-axis driving mechanism and a laser welding head (75); the pair of X-axis driving mechanisms are positioned at two sides of the translation device; the X-axis driving mechanism comprises an X-axis moving seat (721) and an X-axis driving assembly (72) for driving the X-axis moving seat (721) to horizontally move; the moving direction of the X-axis moving seat (721) is parallel to the translation direction of the module tray (80); the Y-axis driving mechanism comprises a Y-axis moving seat (731) and a Y-axis driving assembly (73) for driving the Y-axis moving seat (731) to horizontally move; the Y-axis driving assembly (73) is arranged on a pair of X-axis moving seats (721); the Z-axis driving mechanism comprises a Z-axis moving seat (741) and a Z-axis driving assembly (74) for driving the Z-axis moving seat (741) to vertically move; the Z-axis driving assembly (74) is arranged on the Y-axis moving seat (731); the laser welding head (75) is arranged on the Z-axis moving seat (741).

10. The battery module laser welding apparatus according to claim 9, wherein: two sides of the laser welding head (75) are respectively provided with a side smoke exhaust pipe (76); a pair of side smoke exhaust pipes (76) are distributed along the moving direction of the Y-axis moving seat (731); the side smoke exhaust pipe (76) is vertically arranged, the upper end of the side smoke exhaust pipe is connected with an external smoke exhausting device, and the lower end of the side smoke exhaust pipe is right welded to the welding position.