CN217019028U - Lithium cell block laser welding is with electric core special fixture - Google Patents

Abstract

The utility model relates to the technical field of lithium battery production and manufacturing, in particular to a special fixture for a battery core for laser welding of a lithium battery cap, which comprises a U-shaped lower clamping plate, wherein a baffle is arranged at one end of the U-shaped lower clamping plate, a U-shaped lower extension plate is arranged at the other end of the U-shaped lower clamping plate, a lower operation elongated slot is formed in the U-shaped lower extension plate, a U-shaped upper clamping plate is movably connected to the upper part of the U-shaped lower clamping plate, a U-shaped upper extension plate vertically corresponding to the U-shaped lower extension plate is arranged at the end part of the U-shaped upper clamping plate, and an upper operation elongated slot vertically corresponding to the U-shaped lower extension plate is formed in the U-shaped upper extension plate; the battery cell and the cap are fixed through the arrangement of the U-shaped upper clamping plate and the U-shaped lower clamping plate, the U-shaped upper clamping plate and the U-shaped lower clamping plate are movably connected, the battery cell and the cap are convenient to take and place, the welding work is convenient due to the arrangement of the upper operation elongated slot and the lower operation elongated slot, and the battery cell and the cap can be fixed and conveniently taken and placed.

Description

Lithium cell block laser welding is with electric core special fixture

Technical Field

The utility model relates to the technical field of lithium battery production and manufacturing, in particular to a special core clamp for laser welding of a lithium battery cap.

Background

In the production and manufacturing process of the lithium battery, the cap welding procedure needs to weld the cap and the positive pole lug of the battery cell together through a laser welding machine, one laser welding machine and one cap groove are commonly used at present, when in use, the cap is firstly placed in the cap groove, then the battery core is manually held to place the anode tab on the cap, then the laser welder starts working to weld, after the welding is finished, the battery core is taken out, the whole process needs manual work to position the position of the positive pole ear of the battery core, then the welding is carried out, in the welding process, the battery needs to be held by hand, the phenomenon of welding looseness and even breakage between the cover cap and the pole lug caused by the change of the spot welding position is prevented, the operation difficulty is improved, the production efficiency and the qualification rate of the lithium battery are reduced, the use effect is poor, therefore, how to overcome the above technical problems and disadvantages is an important problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects described in the background technology, and therefore the special core clamp for the laser welding of the lithium battery cap, which can fix the core and the cap, is convenient to take and place, simple to operate, high in production efficiency and good in using effect, is realized.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a lithium cell block laser welding is with electric core special fixture, includes U type lower plate, the one end of U type lower plate is provided with the baffle, and the other end is provided with U type lower extension board, set up down the operation elongated slot on the U type lower extension board, the both sides limit of U type lower plate forms the under bracing edge, and the upper portion swing joint of U type lower plate has U type punch holder, the tip of U type punch holder is provided with the U type upper extension board that corresponds from top to bottom with U type lower extension board, set up on the U type upper extension board with U type lower extension board from top to bottom the operation elongated slot that corresponds, support edge on the both sides formation of U type punch holder.

Further, the U-shaped lower clamp plate and the U-shaped upper clamp plate are connected oppositely, limiting holes are symmetrically formed in the middle of the upper support edge, limiting rods are symmetrically fixed to the lower support edge along the middle of the lower support edge, the limiting rods penetrate through the limiting holes, limiting blocks are arranged at the end portions of the limiting rods, limiting parts are sleeved on the limiting rods between the upper support edge and the limiting blocks to fix the U-shaped upper clamp plate, after positive pole lugs and caps of the battery cells are sleeved together, the battery cells are placed between the U-shaped lower clamp plate and the U-shaped upper clamp plate, the positions, overlapped with the caps, of the positive pole lugs of the battery cells are located between the U-shaped upper extension plate and the U-shaped lower extension plate, the welding positions are located at the upper operation elongated slot and the lower operation elongated slot and are in an exposure state, the battery cells are clamped tightly, laser welding is conducted on the upper operation elongated slot and the lower operation elongated slot, and fixation of the battery cells and the caps is achieved.

Further, the locating part sets up to spacing spring, spacing spring cup joints on the gag lever post between last support edge and the stopper, spacing spring that is in compression state all the time carries out elastic fixation to the electric core between U type lower plate and the U type punch holder, when using, cup joint the anodal utmost point ear of electric core and block, then hand is to pulling up U type punch holder, spacing spring compression, U type punch holder and the separation of U type lower plate, place between the two with the electric core and the block that cup joint, a tip and the baffle contact of electric core, the one end of cup jointing the block is in on the U type between extension board and the U type extension board, slowly loosen U type punch holder this moment, fix electric core, weld, and easy operation.

Further, the locating part sets up to the bolt, and be provided with the screw thread on the gag lever post, fix electric core between U type lower plate and the U type punch holder through the bolt, during the use, cup joint the anodal utmost point ear and the block of electric core, then hand power U type punch holder, U type punch holder and the separation of U type lower plate, electric core and the block that will cup joint are placed between the two, a tip and the baffle contact of electric core, the one end that has cup jointed the block is in on the U type between extension board and the U type lower extension board, loosen U type punch holder this moment, then manual rotatory bolt whereabouts, thereby fix electric core with U type punch holder and U type lower plate, carry out weldment work, welding position is stable, and is efficient.

Furthermore, the thickness of the U-shaped upper extension plate and the U-shaped lower extension plate is set to be 2-10 mm, and the thickness of the U-shaped upper extension plate and the U-shaped lower extension plate is thinner, so that the laser welding machine can conveniently penetrate through the upper operation long groove and the lower operation long groove to perform spot welding.

Further, the bottom of U type lower plate is provided with the base, be provided with the mounting hole on the base, the position of whole anchor clamps of convenient to use screw fixation and board, easy to assemble and dismantlement.

The special electrical core clamp for laser welding of the lithium battery cap has the advantages that:

1. according to the special core clamp for laser welding of the lithium battery cap, the limiting rod is arranged on the lower supporting edge, the limiting rod penetrates through the limiting hole on the upper supporting edge to realize the installation of the U-shaped upper clamp plate and the U-shaped lower clamp plate together, the limiting piece is arranged between the U-shaped upper clamp plate and the limiting block to realize the fixation of the U-shaped upper clamp plate and the U-shaped lower clamp plate on the battery core and the cap, and the welding work is convenient.

2. According to the special battery cell clamp for laser welding of the lithium battery cap, when the limiting part is set to be the limiting spring, the U-shaped upper clamp plate is pulled upwards by hand, the limiting spring is compressed, the U-shaped upper clamp plate is separated from the U-shaped lower clamp plate, the sleeved battery cell and the cap are placed between the U-shaped upper clamp plate and the U-shaped lower clamp plate, the U-shaped upper clamp plate is loosened, clamping and fixing of the battery cell can be achieved under the compression force of the limiting spring, when the limiting part is set to be the bolt, the U-shaped upper clamp plate is pulled by hand, the U-shaped upper clamp plate is separated from the U-shaped lower clamp plate, the sleeved battery cell and the cap are placed between the U-shaped upper clamp plate and the cap, the U-shaped upper clamp plate is loosened, and then the bolt is rotated manually to fall, so that the U-shaped upper clamp plate and the U-shaped lower clamp plate are fixed to the battery cell, and the battery cell is convenient to take and place.

3. The special fixture for the battery cell for laser welding of the lithium battery cap is provided with the U-shaped upper extension plate and the U-shaped lower extension plate, the thickness of the U-shaped upper extension plate and the U-shaped lower extension plate is set to be 2-10 mm, the U-shaped upper extension plate and the U-shaped lower extension plate are thinner, the spot welding work of a laser welding machine is facilitated, the production efficiency is improved, the joint of the cap and the battery cell is fixed, the dislocation is prevented, the qualified rate is improved, and the using effect is good.

Drawings

FIG. 1 is a schematic structural view of a U-shaped upper clamping plate of a special core clamp for laser welding of a lithium battery cap according to the present invention;

FIG. 2 is a schematic structural view of a U-shaped lower clamping plate of the special core clamp for laser welding of the lithium battery cap of the utility model;

FIG. 3 is a schematic view of the mounting structure of the special fixture for a core for laser welding of a lithium battery cap according to the present invention;

fig. 4 is a schematic structural view of embodiment 2 of the special core clamp for laser welding of lithium battery caps according to the present invention.

In the figure: the device comprises a 1-U-shaped lower clamping plate, 11-lower supporting edges, 12-U-shaped lower extension plates, 121-lower operation elongated slots, 2-baffles, 3-bases, 31-mounting holes, 4-U-shaped upper clamping plates, 41-upper supporting edges, 42-limiting holes, 43-U-shaped upper extension plates, 431-upper operation elongated slots, 5-limiting rods, 6-limiting springs, 7-limiting blocks and 8-bolts.

Detailed Description

The utility model provides a special core clamp for laser welding of a lithium battery cap, which is described in more detail by means of specific embodiments in the following with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1

Referring to fig. 1-2, the special fixture for the core for laser welding of the lithium battery cap in the embodiment has the technical effects of fixing the core and the cap, facilitating taking and placing, being simple in operation and high in production efficiency on the basis of good use effect, the structure in the embodiment includes a U-shaped lower clamp plate 1, a base 3 is arranged at the bottom of the U-shaped lower clamp plate 1, a mounting hole 31 is formed in the base 3, and the position of the whole fixture and a machine table can be fixed by using screws, so that the fixture is convenient to mount and dismount. One end of the U-shaped lower clamping plate 1 is provided with a baffle 2, the other end of the U-shaped lower clamping plate 1 is provided with a U-shaped lower extension plate 12, a lower operation elongated slot 121 is formed in the U-shaped lower extension plate 12, lower support edges 11 are formed on two side edges of the U-shaped lower clamping plate 1, a U-shaped upper extension plate 43 vertically corresponding to the U-shaped lower extension plate 12 is arranged at the end of the U-shaped upper clamping plate 4, an upper operation elongated slot 431 vertically corresponding to the U-shaped lower extension plate 12 is formed in the U-shaped upper extension plate 43, the thicknesses of the U-shaped upper extension plate 43 and the U-shaped lower extension plate 12 are set to be 2-10 mm, the thicknesses of the U-shaped upper extension plate 43 and the U-shaped lower extension plate 12 are thinner, and therefore a laser welding machine can conveniently penetrate through the upper operation elongated slot 431 and the lower operation elongated slot 121 to perform spot welding work, and the upper support edges 41 are formed on two sides of the U-shaped upper clamping plate 4.

Referring to fig. 3, the U-shaped lower plate 1 and the U-shaped upper plate 4 of the present embodiment are connected oppositely, the middle of the upper support edge 41 is symmetrically provided with a limiting hole 42, the middle of the lower support edge 11 is symmetrically fixed with a limiting rod 5, the limiting rod 5 passes through the limiting hole 42, the end of the limiting rod 5 is provided with a limiting block 7, the limiting rod 5 between the upper support edge 41 and the limiting block 7 is sleeved with a limiting spring 6 to fix the U-shaped upper plate 4, the limiting spring 6 is sleeved on the limiting rod 5 between the upper support edge 41 and the limiting block 7, the limiting spring 6 in a compressed state is used to elastically fix the electric core between the U-shaped lower plate 1 and the U-shaped upper plate 4, when in use, after the positive electrode tab and the cap of the electric core are sleeved together, the U-shaped upper plate 4 is pulled upwards by hand, the limiting spring 6 is compressed, the U-shaped upper plate 4 is separated from the U-shaped lower plate 1, the battery core is placed between the U-shaped lower clamping plate 1 and the U-shaped upper clamping plate 4, the position where the positive pole lug of the battery core and the cap are overlapped is located between the U-shaped upper extending plate 43 and the U-shaped lower extending plate 12, the welding position is located at the positions of the upper operation long groove 431 and the lower operation long groove 121 and is in an exposed state, the U-shaped upper clamping plate 4 is slowly loosened at the moment, the battery core and the cap are fixed, and laser welding is carried out from the positions of the upper operation long groove 431 and the lower operation long groove 121.

The application principle and the application method of the embodiment are as follows: when using, at first, cup joint the anodal utmost point ear of electric core and block together, then hand upwards draws U type punch holder 4, spacing spring 6 compression, U type punch holder 4 and the separation of U type lower plate 1, put into between U type lower plate 1 and the U type punch holder 4 with the electric core and the block that cup joint, the one end and the baffle 2 contact of electric core, the one end of cup jointing with the block is in between U type upper extension plate 43 and the U type lower extension plate 12, slowly loosen U type punch holder 4 this moment, the realization is fixed to electric core and block, from last operation elongated slot 431 and lower operation elongated slot 121 position carry out laser welding, then it can to take out the good electric core of welding.

Example 2

Referring to fig. 4, the same parts as those in embodiment 1 are not repeated, and the difference from embodiment 1 is that a screw thread is provided on the limiting rod 5, a bolt 8 is screwed on the limiting rod 5 between the upper supporting edge 41 and the limiting block 7, the electric core between the U-shaped lower clamp plate 1 and the U-shaped upper clamp plate 4 is fixed by the bolt 8, when in use, the positive electrode tab of the electric core and the cap are sleeved, then the U-shaped upper clamp plate 4 is pulled by hand, the U-shaped upper clamp plate 4 is separated from the U-shaped lower clamp plate 1, the sleeved electric core and the cap are placed between the two, one end of the electric core is contacted with the baffle 2, one end of the cap is positioned between the U-shaped upper extending plate 43 and the U-shaped lower extending plate 12, at this time, the U-shaped upper clamp plate 4 is loosened, then the bolt 8 is manually rotated to fall, so that the U-shaped upper clamp plate 4 and the U-shaped lower clamp plate 1 fix the electric core, and perform welding work, the welding position is stable, and the efficiency is high.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and "the" and similar referents in the description and claims of this application is not to be construed as necessarily limiting in number. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above, and various combinations of the technical features and structures presented in the present invention may be made without departing from the concept of the present invention.

Claims (6)

1. The utility model provides a lithium cell block laser welding is with electric core special fixture, includes U type lower plate, its characterized in that: the one end of U type lower plate is provided with the baffle, and the other end is provided with U type lower extension plate, the elongated slot of operating under having seted up on the extension plate under the U type, the both sides limit of U type lower plate forms the under bracing edge, and the upper portion swing joint of U type lower plate has U type punch holder, the tip of U type punch holder is provided with the U type upper extension plate that corresponds from top to bottom with U type lower extension plate, set up on the U type upper extension plate with U type lower extension plate upper and lower last operating elongated slot that corresponds, the both sides of U type punch holder form the upper support edge.

2. The lithium battery cap laser welding is with electric core special fixture of claim 1, characterized in that: u type lower plate and U type punch holder connect relatively, are provided with spacing hole along the middle part symmetry at last support the lower bracing is fixed with the gag lever post along the middle part symmetry, the gag lever post passes spacing hole, and the tip of gag lever post is provided with the stopper, has cup jointed the locating part on the gag lever post between last support edge and the stopper and fixes U type punch holder.

3. The lithium battery cap laser welding is with electric core special fixture of claim 2, characterized in that: the locating part sets up to spacing spring, spacing spring cup joints on last support edge and the stopper between the gag lever post, and the spacing spring that is in compression state all the time carries out elastic fixation to the electric core between U type lower plate and the U type punch holder.

4. The lithium battery cap laser welding is with electric core special fixture of claim 3, characterized in that: the locating part sets up to the bolt to be provided with the screw thread on the gag lever post, fix the electric core between U type lower plate and the U type punch holder through the bolt.

5. The lithium battery cap laser welding is with electric core special fixture of claim 1, characterized in that: the thickness of the U-shaped upper extension plate and the thickness of the U-shaped lower extension plate are set to be 2-10 mm.

6. The lithium battery cap laser welding cell special fixture as claimed in any one of claims 1 to 5, wherein: the bottom of U type lower plate is provided with the base, be provided with the mounting hole on the base.

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