CN218983628U

CN218983628U - Clamping device for flying welding of lithium battery

Info

Publication number: CN218983628U
Application number: CN202223319214.4U
Authority: CN
Inventors: 邓梦浩
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-09
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a clamping device for flying welding of a lithium battery, which comprises a frame body, wherein a bottom plate for placing the lithium battery, a first limiting mechanism for horizontally limiting the lithium battery, a second limiting mechanism for vertically limiting the lithium battery and a horizontal movement mechanism for driving the bottom plate to move are arranged on the frame body; the first limiting mechanism and the horizontal movement mechanism are respectively movably connected with the frame body, and the limiting end of the second limiting mechanism is arranged above the lithium battery in a telescopic way; this clamping device carries out space spacing through bottom plate, first stop gear, second stop gear to the lithium cell for the lithium cell is stabilized spacingly on the bottom plate, when the apron welding, avoids the lithium cell to lead to the fact the unusual defect of welding because of the position removes, has improved the welding efficiency and the welding quality of apron.

Description

Clamping device for flying welding of lithium battery

Technical Field

The utility model relates to the technical field of lithium battery preparation, in particular to a clamping device for flying welding of a lithium battery.

Background

The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and the lithium metal is very active in chemical characteristics, so that the lithium metal is processed, stored and used, and the environmental requirements are very high. Therefore, lithium batteries have not been used for a long time. With the development of microelectronic technology at the end of the twentieth century, miniaturized devices are increasing, and high requirements are put on power supplies. Lithium batteries have subsequently entered a large-scale practical stage. In the production process of lithium ion power batteries, the lithium battery cover plate needs to be welded on the batteries, and when in welding, a flying welding mode can be used, so that the welding piece needs to be fixed and limited in order to ensure the laser welding quality, and therefore a corresponding clamp needs to be used.

The existing fixture for welding the lithium battery cover plate is inconvenient to clamp the lithium batteries of different specifications stably, the stability of the whole clamping is reduced, a laser welding mode is adopted, the final position of a weldment is required to be aligned with a welding spot where a laser beam impacts, the number of the required welding spots is large for square batteries with large volumes, welding errors are easy to occur in the process of moving a laser welding machine manually, and the welding quality is influenced.

Disclosure of Invention

Based on the technical problems in the background art, the utility model provides the clamping device for the flying welding of the lithium battery, so that the lithium battery is stably limited on the bottom plate, and the welding efficiency and the welding quality of the cover plate are improved.

The utility model provides a clamping device for flying welding of a lithium battery, which comprises a frame body, wherein a bottom plate for placing the lithium battery, a first limiting mechanism for horizontally limiting the lithium battery, a second limiting mechanism for vertically limiting the lithium battery and a horizontal movement mechanism for driving the bottom plate to move are arranged on the frame body; the first limiting mechanism and the horizontal movement mechanism are respectively movably connected with the frame body, and the limiting end of the second limiting mechanism is arranged above the lithium battery in a telescopic manner.

Further, the first stop gear includes support, spacing subassembly, screw rod, cover establish at screw thread section of thick bamboo and the pivoted motor of drive screw rod of screw rod surface, and the support is fixed in the lower surface of bottom plate, and the one end and the support rotation of screw rod are connected, and the other end passes the support and is fixed in the motor output on the support and be connected, and spacing subassembly's one end and screw thread section of thick bamboo fixed connection, the other end pass the bottom plate and set up in lithium cell one side.

Further, the first limiting mechanism further comprises a second sliding rail and a second sliding block which is in sliding connection with the second sliding rail, the second sliding rail is fixed on the support and arranged below the screw rod, and the limiting assembly is fixedly connected with the second sliding block.

Further, the screw is axially parallel to the second slide rail.

Further, the limiting assembly comprises a limiting plate and a limiting rod, wherein the limiting plate is arranged above the bottom plate and is positioned on one side of the lithium battery, one end of the limiting rod penetrates through the bottom plate and is fixedly connected with the limiting plate, and the other end of the limiting rod is sequentially and fixedly connected with the threaded cylinder and the second sliding rail.

Further, the limit components are two, the two limit plates are symmetrically arranged on two sides of the lithium battery respectively, threads on two sides of the screw rod are oppositely arranged, and the two limit rods are fixedly connected with thread barrels on the opposite threads respectively.

Further, the second stop gear includes locating plate, riser, second cylinder and sets up in the clamp plate of lithium cell top, and the one end and the bottom plate fixed connection of riser, the other end and locating plate fixed connection, and the locating plate sets up in lithium cell top, and the second cylinder is fixed in on the locating plate, and the output of second cylinder passes locating plate and clamp plate fixed connection.

Further, the horizontal movement mechanism comprises a first sliding rail, a horizontal plate, a first sliding block arranged on the first sliding rail in a sliding manner and a first air cylinder for driving the first horizontal plate to move, the first sliding rail and the first air cylinder are fixed on the frame body, the mounting plate is fixed on the first sliding block, and the connecting plate is fixedly connected with the first sliding block.

Further, two first slide rails are arranged in parallel, two first sliding blocks are arranged on each first slide rail, and the horizontal plate is arranged between the four first sliding blocks which are oppositely arranged and fixedly connected with the first sliding blocks respectively.

The clamping device for flying welding of the lithium battery has the advantages that: according to the clamping device for flying welding of the lithium battery, provided by the structure, the space of the lithium battery is limited through the bottom plate, the first limiting mechanism and the second limiting mechanism, so that the lithium battery is stably limited on the bottom plate, the defect of abnormal welding of the lithium battery caused by position movement during welding of the cover plate is avoided, and the welding efficiency and the welding quality of the cover plate are improved; the position of lithium battery is moved through horizontal movement mechanism for the opposite side of apron removes the welding head and welds, thereby makes the welding head can realize the welding treatment to the apron both sides, promotes welding efficiency, and can be further fix a position the apron, prevents in the in-process that removes that the apron slides the condition that influences welding quality from taking place.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 in one view direction;

FIG. 3 is a partial exploded view of the base plate, lithium battery and first spacing mechanism;

FIG. 4 is a schematic view of the partial structure of A in FIG. 3;

the device comprises a 1-frame body, a 2-lithium battery, a 3-bottom plate, a 4-first limiting mechanism, a 5-second limiting mechanism, a 6-horizontal movement mechanism, a 7-cover plate, a 41-bracket, a 42-limiting assembly, a 43-screw rod, a 44-threaded cylinder, a 45-motor, a 46-second slide rail, a 51-positioning plate, a 52-vertical plate, a 53-second cylinder, a 54-pressing plate, a 61-first slide rail, a 62-horizontal plate, a 63-first slide block, a 64-first cylinder, a 421-limiting plate and a 422-limiting rod.

Detailed Description

In the following detailed description of the present utility model, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 4, the clamping device for flying welding of lithium batteries provided by the utility model comprises a frame body 1, wherein a bottom plate 3 for placing the lithium batteries 2, a first limiting mechanism 4 for horizontally limiting the lithium batteries 2, a second limiting mechanism 5 for vertically limiting the lithium batteries 2 and a horizontal movement mechanism 6 for driving the bottom plate 3 to move are arranged on the frame body 1; the first limiting mechanism 4 and the horizontal movement mechanism 6 are respectively movably connected with the frame body 1, and the limiting end of the second limiting mechanism 5 is arranged above the lithium battery 2 in a telescopic manner.

The lithium battery is spatially limited through the bottom plate 3, the first limiting mechanism 4 and the second limiting mechanism 5, so that the lithium battery is stably limited on the bottom plate 3, the defect that the lithium battery is abnormal in welding due to position movement is avoided when the cover plate 7 is welded, and the welding efficiency and welding quality of the cover plate 7 are improved.

In addition, the horizontal movement mechanism 6 is arranged under the condition of not moving the welding head, so that the horizontal movement of the lithium battery 2 is realized, specifically: when making the soldered connection accomplish apron 7 one side welding, the direct position that removes lithium cell 2 through horizontal movement mechanism 6 for the opposite side of apron 7 removes under the soldered connection and welds, thereby makes the soldered connection can realize the welding treatment to apron 7 both sides, promotes welding efficiency, and can be further fix a position apron 7, prevents that apron 7 slip from influencing the condition emergence of welding quality at the in-process of removal.

In this embodiment, the first limiting mechanism 4 includes a bracket 41, a limiting component 42, a screw 43, a threaded cylinder 44 sleeved on the outer surface of the screw 43, and a motor 45 for driving the screw 43 to rotate, wherein the bracket 41 is fixed on the lower surface of the bottom plate 3, one end of the screw 43 is rotationally connected with the bracket 41, the other end of the screw 43 passes through the bracket 41 to be connected with the output end of the motor 45 fixed on the bracket 41, one end of the limiting component 42 is fixedly connected with the threaded cylinder 44, and the other end of the limiting component passes through the bottom plate 3 to be arranged on one side of the lithium battery 2.

The motor 45 drives the screw 43 to rotate, drives the threaded cylinder 44 to move along the extending direction of the screw 43, and the limiting component 42 moves along with the movement of the threaded cylinder 44 on the side surface of the lithium battery 2 so as to limit the side surface of the lithium battery 2.

In order to avoid the defects of inclination, movement interference and the like of the limiting component 42 when moving along the screw 43, the bracket 41 is fixedly arranged on the second slide rail 46, the second slide rail 46 is arranged below the screw 43, the limiting component 42 is fixedly connected with the second slide block, and the limiting component 42 is fixedly connected with the second slide block, so that the limiting component 2 can move along the direction of the second slide rail 46, and meanwhile, the defects of inclination, movement blockage and the like can not occur, and in addition, the screw 43 is axially parallel to the second slide rail 46, so that the defects of movement interference and movement blockage when the limiting component 2 moves along two directions are avoided.

The limiting assembly 42 comprises a limiting plate 421 and a limiting rod 422, the limiting plate 421 is arranged in the direction of the bottom plate 3 and is located on one side of the lithium battery 2, one end of the limiting rod 422 penetrates through the bottom plate 3 to be fixedly connected with the limiting plate 421, and the other end of the limiting rod 422 is sequentially and fixedly connected with the threaded cylinder 44 and the second sliding rail 46.

The long strip groove is formed in the bottom plate 3, the limiting rod 422 can move in the long jump groove, so that the defect that interference occurs with the bottom plate 3 when the limiting rod 422 moves is avoided, the limiting plate 421 is provided with a silica gel pad on the surface attached to the lithium battery, the surface of the lithium battery is prevented from being scratched when the limiting plate 421 is directly contacted with the lithium battery, or the defect that the lithium battery is damaged due to the fact that the limiting plate 421 extrudes the lithium battery is avoided.

In addition, two limiting assemblies 42 are arranged, two limiting plates 421 are symmetrically arranged on two sides of the lithium battery 2 respectively, threads on two sides of the screw 43 are oppositely arranged, two limiting rods 422 are fixedly connected with thread barrels 44 on opposite threads respectively, and when the screw 43 rotates, the thread barrels 44 on the two opposite threads relatively move to drive the two limiting rods 422 to move towards two opposite side surfaces of the lithium battery simultaneously so as to limit the opposite side surfaces of the lithium battery.

In this embodiment, the second limiting mechanism 5 includes a positioning plate 51, a vertical plate 52, a second air cylinder 53 and a pressing plate 54 disposed above the lithium battery 2, one end of the vertical plate 52 is fixedly connected with the bottom plate 3, the other end is fixedly connected with the positioning plate 51, the positioning plate 51 is disposed above the lithium battery 2, the second air cylinder 53 is fixed on the positioning plate 51, and the output end of the second air cylinder 53 passes through the positioning plate 51 and is fixedly connected with the pressing plate 54.

The extension of the second air cylinder 53 drives the pressing plate 54 to move towards the lithium battery, the cover plate 7 is arranged above the lithium battery, the pressing plate 54 is abutted against the cover plate 7 under the action of the second air cylinder 53, limiting and fixing of the cover plate 7 are achieved, a vertical limiting space for the lithium battery 2 is formed between the pressing plate 54 and the bottom plate 3, a horizontal limiting space for the lithium battery 2 is formed between the two limiting plates 421, and therefore space limiting is achieved between the lithium battery and the cover plate 7.

In this embodiment, the horizontal movement mechanism 6 includes a first slide rail 61, a horizontal plate 62, a first slider 63 slidably disposed on the first slide rail 61, and a first cylinder 64 for driving the first horizontal plate 62 to move, the first slide rail 61 and the first cylinder 64 are fixed on the frame 1, the mounting plate is fixed on the first slider 63, and the connecting plate is fixedly connected with the first slider 63.

Specifically, two first sliding rails 61 are disposed in parallel, two first sliding blocks 63 are disposed on each first sliding rail 61, and a horizontal plate 62 is disposed between four first sliding blocks 63 disposed oppositely and is fixedly connected with the first sliding blocks 63 respectively.

The first cylinder 64 stretches to drive the first horizontal plate 62 to move along the stretching direction of the first cylinder 64, drives the first sliding block 63 to move, and realizes the horizontal movement of the lithium battery 2, so that the cover plate 7 under the welding head moves from one side to the other side, the welding of the two sides of the cover plate 7 is realized on the premise of not changing the position of the welding head, the welding efficiency is improved, and the defects that the welding efficiency is low and the welding quality is poor due to the fact that the welding type of the cover plate 7 is realized by changing the position of the welding head in the prior art are overcome by adjusting and correcting the position of the welding head.

The using process comprises the following steps: firstly, carry out external power supply to the consumer in this device, place square lithium cell on bottom plate 3, open the switch of motor 45 and make its work afterwards, motor 45 work makes screw rod 43 rotate, because of the surface of screw rod 43 has seted up opposite screw thread, and under the effect of second slide rail 46 and second slider, make two screw thread section of thick bamboo 44 horizontal migration be close to each other, thereby make two limiting plates 421 press from both sides tight spacing to lithium cell 2, through setting up support 41, motor 45, screw rod 43, screw thread section of thick bamboo 44 and limiting plate 421's cooperation use, when carrying out the welding operation of lithium cell 2, can fix spacing to lithium cell 2, and can adjust according to the lithium cell of equidimension not, satisfy the lithium cell spacing demand of equidimension not, guarantee the stability of whole clamp.

Then, a cover plate 7 is placed on the square lithium battery, a switch of a second air cylinder 53 is opened to enable the square lithium battery to work, the second air cylinder 53 works to enable a pressing plate 54 to descend, the pressing plate 54 descends to be in contact with the cover plate 7 and fixedly limit the cover plate 7, then welding treatment is carried out on one side of the cover plate 7 through a welding head, meanwhile, the switch of a first air cylinder 64 is opened to enable the square lithium battery to work, the first air cylinder 64 works to push a horizontal plate 62 to move, so that a bottom plate 3 arranged on two first sliding rails 61 moves, after one side of the cover plate 7 is welded, the other side of the cover plate 7 moves to the position below the welding head to realize the welding treatment on the other side of the cover plate 7, therefore, the horizontal movement of the lithium battery 2 is realized under the condition that the welding head is not moved, the welding treatment on two sides of the cover plate 7 is realized, the welding efficiency is improved, and the cover plate 7 can be further positioned, and the condition that the sliding of the cover plate 7 affects the welding quality in the moving process is prevented.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The clamping device for the flying welding of the lithium battery comprises a frame body (1) and is characterized in that a bottom plate (3) for placing the lithium battery (2), a first limiting mechanism (4) for horizontally limiting the lithium battery (2), a second limiting mechanism (5) for vertically limiting the lithium battery (2) and a horizontal movement mechanism (6) for driving the bottom plate (3) to move are arranged on the frame body (1);

the first limiting mechanism (4) and the horizontal movement mechanism (6) are respectively movably connected with the frame body (1), and the limiting end of the second limiting mechanism (5) is arranged above the lithium battery (2) in a telescopic manner.

2. The clamping device for flying welding of a lithium battery according to claim 1, wherein the first limiting mechanism (4) comprises a bracket (41), a limiting assembly (42), a screw (43), a threaded cylinder (44) sleeved on the outer surface of the screw (43) and a motor (45) for driving the screw (43) to rotate, the bracket (41) is fixed on the lower surface of the bottom plate (3), one end of the screw (43) is rotationally connected with the bracket (41), the other end of the screw passes through the bracket (41) and is connected with the output end of the motor (45) fixed on the bracket (41), one end of the limiting assembly (42) is fixedly connected with the threaded cylinder (44), and the other end of the limiting assembly passes through the bottom plate (3) and is arranged on one side of the lithium battery (2).

3. The clamping device for flying welding of lithium batteries according to claim 2, wherein the first limiting mechanism (4) further comprises a second sliding rail (46) and a second sliding block in sliding connection with the second sliding rail (46), the second sliding rail (46) is fixed on the bracket (41) and arranged below the screw (43), and the limiting assembly (42) is fixedly connected with the second sliding block.

4. A clamping device for flying welding of lithium batteries according to claim 3, characterized in that the screw (43) is axially parallel to the second slide rail (46).

5. The clamping device for flying welding of lithium batteries according to claim 3, wherein the limiting assembly (42) comprises a limiting plate (421) and a limiting rod (422), the limiting plate (421) is arranged above the bottom plate (3) and is located on one side of the lithium batteries (2), one end of the limiting rod (422) penetrates through the bottom plate (3) to be fixedly connected with the limiting plate (421), and the other end of the limiting rod is sequentially fixedly connected with the threaded cylinder (44) and the second sliding rail (46).

6. The clamping device for flying welding of lithium batteries according to claim 5, wherein the number of the limiting assemblies (42) is two, the two limiting plates (421) are symmetrically arranged on two sides of the lithium battery (2) respectively, threads on two sides of the screw rod (43) are oppositely arranged, and the two limiting rods (422) are fixedly connected with thread barrels (44) on opposite threads respectively.

7. The clamping device for flying welding of a lithium battery according to any one of claims 1-6, wherein the second limiting mechanism (5) comprises a positioning plate (51), a vertical plate (52), a second air cylinder (53) and a pressing plate (54) arranged above the lithium battery (2), one end of the vertical plate (52) is fixedly connected with the bottom plate (3), the other end of the vertical plate is fixedly connected with the positioning plate (51), the positioning plate (51) is arranged above the lithium battery (2), the second air cylinder (53) is fixed on the positioning plate (51), and the output end of the second air cylinder (53) penetrates through the positioning plate (51) to be fixedly connected with the pressing plate (54).

8. The clamping device for flying welding of a lithium battery according to any one of claims 1 to 6, wherein the horizontal movement mechanism (6) comprises a first sliding rail (61), a horizontal plate (62), a first sliding block (63) slidably arranged on the first sliding rail (61) and a first air cylinder (64) for driving the horizontal plate (62) to move, the first sliding rail (61) and the first air cylinder (64) are fixed on the frame body (1), the mounting plate is fixed on the first sliding block (63), and the connecting plate is fixedly connected with the first sliding block (63).

9. The clamping device for flying welding of lithium batteries according to claim 8, wherein two first slide rails (61) are arranged in parallel, two first slide blocks (63) are arranged on each first slide rail (61), and a horizontal plate (62) is arranged between the four first slide blocks (63) which are oppositely arranged and fixedly connected with the first slide blocks (63) respectively.