Rotary adjustable device for laser welding of Bar piece of square aluminum shell lithium battery

Abstract

The utility model relates to a rotary adjustable device for laser welding of a Bar piece of a square aluminum shell lithium battery. The rotary adjustable device comprises a storage table and welding equipment. The welding equipment is connected with the storage table through a support; a lithium battery is placed in the center of the storage table, and limiting pieces which are used for limiting the lithium battery and are detachably connected with the storage table are arranged on the periphery of the lithium battery; the surface of the lithium battery, which is provided with two pole columns, is arranged upwards, bar sheets are respectively put on the two pole columns, the bar sheets are supported by bar sheet brackets, and the bar sheet brackets are detachably connected with the object placing table; the welding equipment is used for welding the pole columns and the bar sheets which are adjacent to the welding equipment; the object placing table can rotate, and the object placing table is rotated to move the other pole column and the bar sheet adjacent to the pole column to the position below the welding equipment for welding; the storage table can adapt to lithium batteries of different sizes and drive the lithium batteries to rotate so as to achieve welding of pole columns at the two ends of the lithium batteries and adjacent bar pieces of the lithium batteries.

Description

TECHNICAL FIELD

[0001] The utility model relates to a square aluminium shell lithium cell Bar piece laser welding uses rotatory adjustable device, belong to the battery production equipment technical field. BACKGROUND

[0002] In order to meet the circuit communication of the battery in the test process, the existing battery is usually welded with aluminum BAR piece on its positive pole and negative pole, and the process usually fixes and limit the lithium battery and bar piece through the clamping tool positioning piece, makes the pole of both ends of the lithium battery be configured with the bar piece corresponding to its position, and then the laser welding equipment welds the two, that is, the square aluminum shell lithium battery Bar piece laser welding.

[0003] The Chinese patent with publication number CN220679859 U discloses a battery bar piece welding tool, which comprises a base, first and second abutting blocks, first and second clamping pieces installed on the same side surface of the base, the first clamping piece is arranged opposite to the first abutting block, and the first clamping piece selectively clamps the two side surfaces in the height direction of the battery in cooperation with the first abutting block, the second abutting block is arranged opposite to the second clamping piece, and the second clamping piece selectively clamps the two side surfaces in the length direction of the battery in cooperation with the second abutting block, and the welding seat is fixedly installed on one side of the second clamping piece close to the second abutting block, which clamps the two ends in the length direction and the height direction of the battery respectively, and the clamping size in both clamping directions can be adjusted to adapt to more sizes of batteries, but the clamping piece still needs to be removed, the lithium battery needs to be turned over manually, and then the other end of the pole of the lithium battery and the bar piece need to be welded after clamping the lithium battery, so the construction efficiency is low. UTILITY MODEL CONTENTS

[0004] In order to overcome the above problems, the utility model provides a square aluminium shell lithium cell Bar piece laser welding uses rotatory adjustable device, its placing table can adapt to lithium battery of different sizes, and drive lithium battery and rotate to realize welding respectively to the pole of both ends of lithium battery and the bar piece adjacent to it.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of square aluminium shell lithium battery Bar piece laser welding rotating adjustable device, including placing table, welding equipment;The welding equipment is connected with the placing table by support;Lithium battery is placed in the center of the placing table, and the limiting piece that lithium battery four around side is equipped with is detachably connected with the placing table;The lithium battery is equipped with the face of two poles and is set up, and bar piece is placed on two poles respectively, and bar piece is supported by bar piece support, and bar piece support is detachably connected with the placing table;The welding equipment is welded with the pole and the bar piece adjacent thereto;The placing table can be rotated, and another pole and the bar piece adjacent thereto are moved to the welding equipment below by rotating the placing table and are welded.

[0007] Further, the placing table is equipped with four groups of limiting strip grooves respectively perpendicular to the four around sides of the lithium battery;Each limiting piece moves along the adjacent limiting strip groove and is detachably connected therewith.

[0008] Further, the placing table is further equipped with two support strip grooves on the same side of the length direction of the lithium battery and parallel to the lithium battery;Each bar piece support moves along the adjacent support strip groove and is detachably connected therewith;Each bar piece support is equipped with a supporting plate flush with the pole, and bar piece is arranged on the supporting plate, and the other end of bar piece is placed on the pole adjacent thereto.

[0009] Further, each bar piece support is provided with a supporting groove along the height direction thereof;Each supporting plate moves along the adjacent supporting groove and is detachably connected therewith.

[0010] Further, the bottom of the placing table is equipped with a rotary cylinder, and the placing table is fixedly connected with the movable end of the rotary cylinder, and the rotary cylinder drives the placing table to rotate by an angle of 180 °;The bottom of the rotary cylinder is equipped with a base fixedly connected therewith, and the base is connected with the welding equipment by the support.

[0011] Further, the welding equipment is a laser galvanometer, and the laser galvanometer is equipped with an operating table on one side, and the other side of the operating table is fixedly connected with the support, and the lower part of the support is fixedly connected with the base.

[0012] Further, the operating table is equipped with a galvanometer groove along the height direction of the side close to the laser galvanometer, and the laser galvanometer moves along the galvanometer groove and is detachably connected therewith;The lower side of the laser galvanometer is equipped with a telescopic pressing member corresponding thereto, and the telescopic pressing member presses or loosens the bar piece and the pole corresponding thereto by telescoping.

[0013] Further, the telescopic pressing member comprises a standard cylinder, a connecting rod and a dust cover; the operating table is provided with a pressing groove parallel to the length direction of the lithium battery; the standard cylinder is movably connected to the pressing groove; the telescopic direction of the cylinder body of the standard cylinder is perpendicular to the lithium battery; the other end of the cylinder body is fixedly connected with the connecting rod perpendicular to the cylinder body; the other end of the connecting rod is fixedly connected with the dust cover; the dust cover is provided with a through hole for the laser to pass through; when the dust cover presses the bar sheet and the pole corresponding to the dust cover, the through hole is overlapped with the center of the pole, and the laser passes through the through hole to weld.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. The welding equipment is arranged above the lithium battery, and the rotatable storage table is used for limiting and overturning the lithium battery, so that the welding of the pole and the bar sheet at two ends of the lithium battery is realized in batches on the basis of one limiting operation, and the welding efficiency is improved.

[0016] 2. The telescopic pressing member is arranged below the welding equipment, the gas of the standard cylinder in the telescopic pressing member drives the dust cover to vertically displace, the bar sheet and the adjacent pole to be welded are pressed, displacement of the bar sheet and the adjacent pole during welding is prevented, welding slag and smoke generated during welding are adsorbed, the laser vibration mirror is used in the welding equipment, the angle of the emitted laser can be adjusted, the bar sheet and the adjacent pole to be welded are not needed to be accurately positioned below the welding equipment, and the size range of the lithium battery compatible with the utility model is improved.

[0017] 3. The storage table is detachably connected to the limiting strip groove and the limiting piece arranged around the lithium battery, different sizes of lithium batteries can be limited, two support strip grooves parallel to the length direction of the lithium battery are arranged on the storage table, the bar sheet support adjacent to the two support strip grooves is detachably connected to the two support strip grooves, the distance between the poles at two ends of the lithium battery is different due to different sizes of the lithium battery, the bar sheet adjacent to the poles is supported through the cooperation of the supporting groove on the bar sheet support and the supporting plate, and welding is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model.

[0019] Fig. 2 It is a front view of the utility model.

[0020] Fig. 3 It is a structure schematic view of the connection relationship between the storage table before rotation and the lithium battery.

[0021] Fig. 4 Figure 4 is a structure diagram of the connection relationship between the storage table and the lithium battery after the storage table is rotated by 180°.

[0022] Fig. 5 Figure 5 is a structure diagram of the connection relationship between the storage table and the minimum size lithium battery.

[0023] Fig. 6 Figure 6 is a structure diagram of the connection relationship between the storage table and the maximum size lithium battery.

[0024] The reference signs in the figure represent:

[0025] 1, storage table; 11, limiting strip slot; 12, support strip slot; 13, rotary air cylinder; 14, base; 2, welding equipment; 3, support; 4, lithium battery; 5, limiting piece; 6, bar sheet; 7, bar sheet support; 71, bearing plate; 72, bearing groove; 8, operation table; 81, galvanometer groove; 82, pressing groove; 9, telescopic pressing piece; 91, standard air cylinder; 92, connecting rod; 93, dust cover. DETAILED DESCRIPTION

[0026] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0027] Referring to Figs. 1-6 A rotary adjustable device for laser welding of square aluminum shell lithium battery bar sheet, comprising a storage table 1, welding equipment 2, a lithium battery 4 is placed on the storage table 1, a limiting piece 5 for limiting the lithium battery 4 is arranged around the lithium battery 4 and is detachably connected with the storage table 1, a bar sheet 6 is arranged on the pole of the lithium battery 4, and the welding equipment 2 corresponds to the pole and the adjacent bar sheet 6 and welds the two.

[0028] Further, the lithium battery 4 is provided with two pole columns facing upwards and is placed in the center of the storage table 1, the bar sheet 6 on the two pole columns is supported by a bar sheet support 7, and the bar sheet support 7 is detachably connected with the storage table 1; the welding equipment 2 is placed above the lithium battery 4, and the welding equipment 2 welds the adjacent pole and bar sheet 6; the storage table 1 is rotatable, and by rotating the storage table 1 by 180°, the other pole and the adjacent bar sheet 6 can be moved to below the welding equipment 2 for welding, that is, on the basis of one limiting operation of the lithium battery 4, the rotation of the storage table 1 can realize the welding of the poles at both ends of the lithium battery 4 in batches, the number of manual disassembly, turning over and welding of the lithium battery 4 is reduced, and the welding efficiency is improved.

[0029] In order to realize the rotation of the placing table 1, the bottom of the placing table 1 is provided with a rotary cylinder 13, the placing table 1 is fixedly connected with the movable end of the rotary cylinder 13, so that the rotary cylinder 13 can drive the placing table 1 to rotate 180°, and the rotary cylinder 13 is provided below with a base 14 fixedly connected therewith, and the base 14 is connected with the welding equipment 2 through the support 3.

[0030] Further, the placing table 1 can be adapted to lithium batteries 4 of different sizes: four groups of limiting strip grooves 11 perpendicular to the four sides of the lithium battery 4 are arranged on the placing table 1, so that each limiting piece 5 moves along the adjacent limiting strip groove 11 and is detachably connected therewith, so as to adjust the position of each limiting piece 5 according to the lithium battery 4 of different sizes, and fasten the limiting piece 5 in the limiting strip groove 11 to limit the lithium battery 4.

[0031] The distance between the two pole columns of lithium batteries 4 of different sizes is different, so the distance between the bar pieces 6 placed on the pole columns will also change, and a support strip groove 12 matched with the bar piece support 7 can be arranged on the placing table 1, the support strip groove 12 is arranged on the same side of the lithium battery 4 in parallel with the lithium battery 4, and the bar piece support 7 can move along the adjacent support strip groove 12 and be detachably connected therewith, so as to adjust the distance between the two bar piece supports 7 according to the distance between the two pole columns, and ensure that the two bar piece supports 7 can still support the bar pieces 6 adjacent to the pole columns when the distance between the two pole columns changes.

[0032] The height of the pole column also changes between lithium batteries 4 of different sizes, in order to enable the two bar piece supports 7 to adapt to the height of the pole column and thereby support the bar pieces 6 adjacent thereto, the two bar piece supports 7 are each provided with a supporting groove 72 in the height direction, and each supporting groove 72 is provided with a supporting plate 71 movably arranged therein and detachably connected therewith, so that the supporting plate 71 can be kept flush with the pole column adjacent thereto by adjusting the position of the supporting plate 71 on the bar piece support 7, thereby supporting the bar pieces 6 on the pole column while adapting to the pole column of different heights.

[0033] Further, the welding equipment 2 is a laser galvanometer, the laser galvanometer is arranged above the lithium battery 4 and performs welding on the bar pieces 6 and the pole columns adjacent thereto, when the size of the lithium battery 4 is different, the required defocusing amount for welding is different, and the position of the laser galvanometer needs to be adjusted: one side of the laser galvanometer is provided with an operation table 8, the other side of the operation table 8 is fixedly connected with the support 3, and the lower part of the support 3 is fixedly connected with the base 14; a galvanometer groove 81 is arranged on the side of the operation table 8 close to the laser galvanometer in the height direction, and the laser galvanometer can move vertically along the galvanometer groove 81 and be detachably connected therewith, so as to adjust the distance between the laser galvanometer and the bar pieces 6 and the pole columns adjacent thereto, thereby obtaining the required defocusing amount for welding.

[0034] Further, in order to prevent the bar sheet 6 from moving during welding, a telescopic pressing piece 9 corresponding to the position of the laser galvanometer is arranged below the laser galvanometer, the bar sheet 6 and the pole are pressed or loosened by the telescopic pressing piece 9, and the telescopic pressing piece 9 can adsorb the welding slag and smoke generated during welding in the pressed state; the telescopic pressing piece 9 comprises a standard air cylinder 91, a connecting rod 92 and a dust removal cover 93, a pressing groove 82 parallel to the length direction of the lithium battery 4 is formed in the bottom of the operation table 8, the standard air cylinder 91 is movably connected to the pressing groove 82, the telescopic direction of the cylinder body of the standard air cylinder 91 is perpendicular to the lithium battery 4, the other end of the cylinder body is fixedly connected with the connecting rod 92 perpendicular to the cylinder body, the other end of the connecting rod 92 is fixedly connected with the dust removal cover 93, and the dust removal cover 93 is provided with a through hole for the laser to pass through.

[0035] When the defocusing amount is adjusted, the standard air cylinder 91 is driven to extend the cylinder body, so that the dust removal cover 93 presses the corresponding bar sheet 6 and pole, at this time, the through hole of the dust removal cover 93 overlaps with the center of the pole, the laser galvanometer is started, the emission position of the laser of the laser galvanometer is adjusted according to the position of the pole, so that the laser can pass through the through hole to weld the bar sheet 6 and the pole, and the dust removal cover 93 is driven to adsorb the welding slag and smoke.

[0036] Further, the limiting piece 5, the bar sheet support 7 and the supporting plate 71 can be selected as L-shaped plates, so that the limiting piece 5, the bar sheet support 7 and the supporting plate 71 are detachably connected with the limiting strip groove 11, the support strip groove 12 and the supporting groove 72 adjacent thereto.

[0037] Further, the detachable connection modes mentioned above can be selected as bolt fastening connections.

[0038] The working principle of the utility model is as follows:

[0039] Referring to Figs. 1-6 The size of the lithium battery 4 compatible with the utility model is shown in the following table:

[0040]

[0041] The face of the lithium battery 4 provided with two pole columns is upward and placed in the center of the placement table 1, the limiting pieces 5 in the limiting strip grooves 11 are adjusted, so that the limiting pieces 5 are respectively abutted against the side faces of the adjacent lithium batteries 4 to limit the lithium batteries 4.

[0042] The bar sheet supports 7 in the support strip grooves 12 are adjusted, so that the bar sheet supports 7 correspond to the adjacent pole columns, the positions of the supporting plates 71 on each bar sheet support 7 are adjusted, so that the supporting plates 71 are flush with the pole columns, and the bar sheet 6 is placed on each pole column, so that the other end of the bar sheet 6 is supported by the adjacent supporting plate 71.

[0043] The laser galvanometer is moved along the galvanometer groove 81 to a height that meets the defocusing amount required for welding, the position of the standard cylinder 91 is adjusted along the pressing groove 82 to place the dust cover 93 connected to the standard cylinder 91 above the adjacent bar sheet 6 and pole, the standard cylinder 91 is driven to extend the cylinder body to drive the dust cover 93 to lower and press the adjacent bar sheet 6 and pole, the laser galvanometer is started, the laser emission position of the laser galvanometer is adjusted to pass through the through hole on the dust cover 93 and weld the adjacent bar sheet 6 and pole.

[0044] Another bar sheet 6 and pole are welded: the standard cylinder 91 is driven to retract the cylinder body to make the dust cover 93 leave the pressed bar sheet 6 and pole, the rotary cylinder 13 is driven to rotate the worktable 1 by 180°, at this time, another positionally opposite bar sheet 6 and pole are sent to below the dust cover 93, the standard cylinder 91 is driven to extend the cylinder body to press the bar sheet 6 and pole, and then the laser galvanometer is started to weld the two.

[0045] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A square aluminum shell lithium battery Bar piece laser welding rotary adjustable device, including the material table (1), the welding equipment (2); The welding equipment (2) is connected with the material table (1) through the support (3);The material table (1) center places lithium battery (4), and the lithium battery (4) four around sides are equipped with the limiting piece (5) that will it limit and with the detachable connection of material table (1), it is characterized in that: The lithium battery (4) is provided with two pole columns, and the bar sheet (6) is placed on each pole column, and the bar sheet (6) is supported by the bar sheet support (7), and the bar sheet support (7) is detachably connected with the placement table (1); the welding equipment (2) is used for welding the pole column and the bar sheet (6) adjacent to the pole column; the placement table (1) is rotatable, and the placement table (1) is rotated to move another pole column and the bar sheet (6) adjacent to the pole column to below the welding equipment (2) and weld.

2. The rotary adjustable device for laser welding of Bar sheet of square aluminum shell lithium battery according to claim 1, characterized in that: The placement table (1) is provided with four groups of limiting strip grooves (11) perpendicular to the four sides of the lithium battery (4); each limiting piece (5) moves along the adjacent limiting strip groove (11) and is detachably connected with the limiting strip groove (11).

3. The rotary adjustable device for laser welding of Bar sheet of square aluminum can lithium battery according to claim 2, characterized in that: The placement table (1) is further provided with two support strip grooves (12) on the same side of the lithium battery (4) in the length direction and parallel to the lithium battery (4); each bar sheet support (7) moves along the adjacent support strip groove (12) and is detachably connected with the support strip groove (12); each bar sheet support (7) is provided with a supporting plate (71) flush with the pole column, and the bar sheet (6) is arranged on the supporting plate (71), and the other end of the bar sheet (6) is placed on the pole column adjacent to the bar sheet (6).

4. The rotary adjustable device for laser welding of Bar sheet of square aluminum can lithium battery according to claim 3, characterized in that: Each bar sheet support (7) is provided with a supporting groove (72) in the height direction of the bar sheet support (7); and each supporting plate (71) moves along the adjacent supporting groove (72) and is detachably connected with the supporting groove (72).

5. The rotary adjustable device for laser welding of Bar pieces of square aluminum can lithium battery according to claim 1 or 4, characterized in that: The bottom of the placement table (1) is provided with a rotary air cylinder (13), the placement table (1) is fixedly connected with the movable end of the rotary air cylinder (13), and the rotary air cylinder (13) drives the placement table (1) to rotate by 180°; the bottom of the rotary air cylinder (13) is provided with a base (14) fixedly connected with the rotary air cylinder (13), and the base (14) is connected with the welding equipment (2) through the support (3).

6. The rotary adjustable device for laser welding of Bar pieces of square aluminum can lithium battery according to claim 5, characterized in that: The welding equipment (2) is a laser galvanometer, one side of the laser galvanometer is provided with an operation table (8), the other side of the operation table (8) is fixedly connected with the support (3), and the lower part of the support (3) is fixedly connected with the base (14).

7. The rotary adjustable device for laser welding of Bar pieces of square aluminum can lithium battery according to claim 6, characterized in that: The operation table (8) is provided with a galvanometer groove (81) in the height direction of the operation table (8) close to the laser galvanometer, and the laser galvanometer moves along the galvanometer groove (81) and is detachably connected with the galvanometer groove (81); the lower part of the laser galvanometer is provided with a telescopic pressing piece (9) corresponding to the laser galvanometer, and the telescopic pressing piece (9) is used for pressing or loosening the bar sheet (6) and the pole column corresponding to the telescopic pressing piece (9) through telescopic extension and contraction.

8. The rotary adjustable device for laser welding of Bar pieces of square aluminum can lithium battery according to claim 7, characterized in that: The telescopic pressing part (9) comprises a standard cylinder (91), a connecting rod (92) and a dust cover (93); the bottom of the operation table (8) is provided with a pressing groove (82) parallel to the length direction of the lithium battery (4), the standard cylinder (91) is movable along the pressing groove (82) and detachably connected therewith; the telescopic direction of the cylinder body of the standard cylinder (91) is perpendicular to the lithium battery (4), the other end of the cylinder body is fixedly connected with the connecting rod (92) perpendicular thereto, the other end of the connecting rod (92) is fixedly connected with the dust cover (93), and the dust cover (93) is provided with a through hole for the laser to pass through; when the dust cover (93) presses the bar sheet (6) and the pole column corresponding thereto, the through hole is overlapped with the center of the pole column, and the laser passes through the through hole to be welded.

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