CN216126732U

CN216126732U - Double-station welding device for lithium battery

Info

Publication number: CN216126732U
Application number: CN202122747073.5U
Authority: CN
Inventors: 李世田
Original assignee: Jiangxi Rendong New Energy Co ltd
Current assignee: Jiangxi Rendong New Energy Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-25
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a double-station welding device for a lithium battery, which relates to the technical field of lithium battery production and comprises a device main body and a fixing clamp, wherein a driving bevel gear is fixedly connected to the outer surface of a connecting shaft, a first driven bevel gear is fixedly connected to one side of a transmission shaft, a first rack is meshed and connected to one side surface of the first gear, a rotating rod is fixedly connected to one side of a second gear, and a tension spring is fixedly connected to the lower end of a lifting rack. The utility model arranges the drive bevel gear and the transmission shaft; first driven bevel gear, second driven bevel gear, first rack and second rack reduce the time that the in-process welding machine of loading and unloading battery is in wait state, make complete machine welding efficiency improve greatly, through setting up extension spring, lifting rack, second gear, dwang and gyro wheel, can realize easily extracting tight lithium cell from mounting fixture in, make the clamping process more convenient, reduce operator's the amount of labour.

Description

Double-station welding device for lithium battery

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a double-station welding device for a lithium battery.

Background

The battery is used as a tool for storing electric energy, and the lithium battery is widely used and can be convenient for people to use the electric energy in any place. A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries. Due to its own high technical requirement limits, only a few countries of companies are producing such lithium metal batteries. A welding machine is needed to weld the battery pole piece to the lithium battery in the production process of the lithium battery.

At present, the existing welding device for the lithium battery is mostly a single welding station, in the process of loading and unloading the battery, a welding machine is in a waiting state, the welding efficiency of the whole machine is low, the clamping of a welding fixture is troublesome, the operation is complicated, the labor amount of workers is large, and the existing welding device for the lithium battery has the problems of low single-station working efficiency and troublesome clamping of the welding fixture.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a double-station welding device for a lithium battery, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the device comprises a device main body and a fixing clamp, wherein a connecting shaft is rotatably connected inside the device main body, a driving bevel gear is fixedly connected on the outer surface of the connecting shaft, a transmission shaft is rotatably connected inside the device main body, a first driven bevel gear is fixedly connected on one side of the transmission shaft, a second driven bevel gear is fixedly connected on the outer surface of the transmission shaft, a first gear is fixedly connected on the other side of the transmission shaft, a first rack is connected on one side surface of the first gear in a meshed manner, a second rack is connected on the other side surface of the first gear in a meshed manner, a second gear is rotatably connected inside the fixing clamp through a rotating shaft, a rotating rod is fixedly connected on one side of the second gear, one end of the rotating rod, far away from the second gear, is rotatably connected with a roller through the rotating shaft, and a lifting rack is connected on the other side of the second gear in a meshed manner, the lower end of the lifting rack is fixedly connected with an extension spring.

Optionally, a side face of the device main body is fixedly connected with a mounting seat, the upper portion of the mounting seat is fixedly provided with a servo motor, and the output end of the servo motor is fixedly connected with the connecting shaft.

Optionally, the inside of the device main body is slidably connected with a first rack, a first connecting block is fixedly connected to the front of the first rack, a first welding frame is fixedly connected to the front of the first connecting block, and a first welding head is fixedly mounted inside the first welding frame.

Optionally, the inside of the device main body is slidably connected with a second rack, a second connecting block is fixedly connected to the front surface of the second rack, a second welding frame is fixedly connected to the front surface of the second connecting block, and a second welding head is fixedly mounted inside the second welding frame.

Optionally, the lower part of the device main body is fixedly connected with a fixing base, the upper surface of the fixing base is fixedly connected with a fixing clamp, a lithium battery is inserted into the fixing clamp, and one side of the roller abuts against the outer surface of the lithium battery.

Optionally, the inside of the fixing clamp is slidably connected with the lifting rack, and the lower end of the extension spring is fixedly connected with the fixing clamp.

Advantageous effects

The utility model provides a double-station welding device for a lithium battery, which has the following beneficial effects:

1. the double-station welding device for the lithium battery is characterized in that a driving bevel gear and a transmission shaft are arranged; the driving bevel gear can drive the transmission shaft and the first gear to intermittently rotate forwards and reversely through the first driven bevel gear and the second driven bevel gear, so that the two welding mechanisms are controlled to alternately descend for welding through the first rack and the second rack, the time that a welding machine is in a waiting state in the process of loading and unloading batteries is reduced, and the welding efficiency of the whole machine is greatly improved.

2. This duplex position welding set for lithium cell through setting up extension spring, lifting rack, second gear, dwang and gyro wheel, injects the lithium cell behind the mounting fixture, and the extension spring accessible takes up the lifting rack downwards makes the second gear drive dwang and gyro wheel press from both sides tight lithium cell, and through rotating gyro wheel and dwang to be connected in addition, also can realize easily extracting tight lithium cell from the mounting fixture in, it is more convenient to make the clamping process, reduces operator's the amount of labour.

Drawings

FIG. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a front cross-sectional structural view of the present invention;

fig. 4 is a front sectional structural view of the fixing clip of the present invention.

In the figure: 1. a device main body; 2. a first welding stand; 3. a first welding head; 4. a fixed base; 5. fixing the clamp; 6. a lithium battery; 7. a second welding stand; 8. a second welding head; 9. a second rack; 10. a servo motor; 11. a mounting seat; 12. a drive bevel gear; 13. a drive shaft; 14. a first driven bevel gear; 15. a connecting shaft; 16. a second driven bevel gear; 17. a first gear; 18. a first connection block; 19. a second connecting block; 20. a first rack; 21. a roller; 22. rotating the rod; 23. an extension spring; 24. a lifting rack; 25. a second gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a double-station welding device for a lithium battery comprises a device main body 1 and a fixing clamp 5, wherein a connecting shaft 15 is rotatably connected inside the device main body 1, a mounting seat 11 is fixedly connected to one side surface of the device main body 1, a servo motor 10 is fixedly mounted on the upper portion of the mounting seat 11, the output end of the servo motor 10 is fixedly connected with the connecting shaft 15, a driving bevel gear 12 is fixedly connected to the outer surface of the connecting shaft 15, a transmission shaft 13 is rotatably connected inside the device main body 1, a first driven bevel gear 14 is fixedly connected to one side of the transmission shaft 13, a second driven bevel gear 16 is fixedly connected to the outer surface of the transmission shaft 13, a first gear 17 is fixedly connected to the other side of the transmission shaft 13, a first rack 20 is meshed and connected to one side surface of the first gear 17, the inside of the device main body 1 is slidably connected with the first rack 20, and a first connecting block 18 is fixedly connected to the front surface of the first rack 20, a first welding frame 2 is fixedly connected to the front surface of the first connecting block 18, a first welding head 3 is fixedly installed in the first welding frame 2, the other side surface of the first gear 17 is engaged and connected with a second rack 9, the inside of the device main body 1 is slidably connected with the second rack 9, a second connecting block 19 is fixedly connected to the front surface of the second rack 9, a second welding frame 7 is fixedly connected to the front surface of the second connecting block 19, a second welding head 8 is fixedly installed in the second welding frame 7, a second gear 25 is rotatably connected to the inside of the fixing clamp 5 through a rotating shaft, a rotating rod 22 is fixedly connected to one side of the second gear 25, a roller 21 is rotatably connected to one end of the rotating rod 22 far away from the second gear 25 through the rotating shaft, a lifting rack 24 is engaged and connected to the other side of the second gear 25, an extension spring 23 is fixedly connected to the lower end of the lifting rack 24, a fixing base 4 is fixedly connected to the lower portion of the device main body 1, the upper surface of unable adjustment base 4 and mounting fixture 5 fixed connection, the inside grafting of mounting fixture 5 has lithium cell 6, one side butt in lithium cell 6's surface of gyro wheel 21, mounting fixture 5's inside and lifting rack 24 sliding connection, extension spring 23's lower extreme and mounting fixture 5 fixed connection.

When the welding device is used, the output end of the servo motor 10 drives the driving bevel gear 12 to rotate clockwise through the connecting shaft 15, the driving bevel gear 12 and the first driven bevel gear 14 can be driven to rotate anticlockwise in the process of meshing the driving bevel gear 12 and the first driven bevel gear 14, at the moment, the first gear 17 can drive the first welding frame 2 and the first welding head 3 to ascend through the first rack 20 and the first connecting block 18, a battery which is welded in the right fixing clamp 5 needs to be taken off in the period, a lithium battery 6 to be welded is newly installed, meanwhile, the second welding frame 7 and the second welding head 8 are driven to descend through the second rack 9 and the second connecting block 19, after the driving bevel gear 12 is separated from the first driven bevel gear 14, the driving bevel gear 12 has a section of idle running state, at the moment, the second welding head 8 descends and stops descending and just stops on the lithium battery 6 in the left fixing clamp 5, and welding the upper part of the steel tube; then the driving bevel gear 12 continues to rotate, when the driving bevel gear starts to be meshed with the second driven bevel gear 16, the driving shaft 13 and the first gear 17 can be driven to rotate clockwise, so that the second welding frame 7 and the second welding head 8 are driven to ascend through the second rack 9 and the second connecting block 19, the first rack 20 and the first connecting block 18 drive the first welding frame 2 and the first welding head 3 to descend, the lithium battery 6 in the left fixing clamp 5 is disassembled and replaced, the lithium battery 6 in the right fixing clamp 5 is welded, the two welding mechanisms are controlled to descend and weld alternately, the time of the welding machine in a waiting state in the process of assembling and disassembling the battery is shortened, and the welding efficiency of the whole machine is greatly improved; during the clamping, directly inject lithium cell 6 in the last fixed hole site of mounting fixture 5, inject mounting fixture 5 back, extension spring 23 can make second gear 25 drive dwang 22 and gyro wheel 21 through taut lifting rack 24 downwards and press from both sides tight lithium cell 6, and through rotating gyro wheel 21 and dwang 22 and connecting, also can realize easily extracting tight lithium cell 6 from mounting fixture 5 in, make the clamping process more convenient, reduce operator's the amount of labour.

In summary, the present invention is provided with the driving bevel gear 12 and the transmission shaft 13; the lithium battery 6 is inserted into the fixing clamp 5 by arranging the extension spring 23, the lifting rack 24, the second gear 25, the rotating rod 22 and the roller 21, the extension spring 23 can pull the lifting rack 24 downwards to drive the rotating rod 22 and the roller 21 to clamp the lithium battery 6, and the roller 21 is rotatably connected with the rotating rod 22 to realize easy pulling out of the lithium battery 6 from the fixing clamp 5, the clamping process is more convenient, and the labor capacity of an operator is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a duplex position welding set for lithium cell, includes device main part (1) and mounting fixture (5), its characterized in that: the device is characterized in that a connecting shaft (15) is rotatably connected inside the device main body (1), a driving bevel gear (12) is fixedly connected to the outer surface of the connecting shaft (15), a transmission shaft (13) is rotatably connected inside the device main body (1), a first driven bevel gear (14) is fixedly connected to one side of the transmission shaft (13), a second driven bevel gear (16) is fixedly connected to the outer surface of the transmission shaft (13), a first gear (17) is fixedly connected to the other side of the transmission shaft (13), a first rack (20) is meshed and connected to one side of the first gear (17), a second rack (9) is meshed and connected to the other side of the first gear (17), a second gear (25) is rotatably connected inside the fixing clamp (5) through a rotating shaft, and a rotating rod (22) is fixedly connected to one side of the second gear (25), the one end that second gear (25) were kept away from in dwang (22) is rotated through the pivot and is connected with gyro wheel (21), the opposite side meshing of second gear (25) is connected with lifting rack (24), the lower extreme fixedly connected with extension spring (23) of lifting rack (24).

2. The double-station welding device for the lithium battery as claimed in claim 1, wherein: a side face of the device body (1) is fixedly connected with a mounting seat (11), a servo motor (10) is fixedly mounted on the upper portion of the mounting seat (11), and the output end of the servo motor (10) is fixedly connected with a connecting shaft (15).

3. The double-station welding device for the lithium battery as claimed in claim 1, wherein: the device comprises a device main body (1), wherein the interior of the device main body is connected with a first rack (20) in a sliding mode, a first connecting block (18) is fixedly connected to the front face of the first rack (20), a first welding frame (2) is fixedly connected to the front face of the first connecting block (18), and a first welding head (3) is fixedly mounted in the first welding frame (2).

4. The double-station welding device for the lithium battery as claimed in claim 1, wherein: the device is characterized in that the inside of the device main body (1) is in sliding connection with a second rack (9), a second connecting block (19) is fixedly connected to the front face of the second rack (9), a second welding frame (7) is fixedly connected to the front face of the second connecting block (19), and a second welding head (8) is fixedly mounted inside the second welding frame (7).

5. The double-station welding device for the lithium battery as claimed in claim 1, wherein: the device is characterized in that a fixing base (4) is fixedly connected to the lower portion of the device main body (1), the upper surface of the fixing base (4) is fixedly connected with a fixing clamp (5), a lithium battery (6) is inserted into the fixing clamp (5), and one side of the roller (21) abuts against the outer surface of the lithium battery (6).

6. The double-station welding device for the lithium battery as claimed in claim 1, wherein: the inside of the fixed clamp (5) is connected with the lifting rack (24) in a sliding mode, and the lower end of the extension spring (23) is fixedly connected with the fixed clamp (5).