CN-122025883-A - Formation device for lithium battery manufacturing

CN122025883ACN 122025883 ACN122025883 ACN 122025883ACN-122025883-A

Abstract

The invention relates to the technical field of lithium battery processing, in particular to a formation device for manufacturing a lithium battery, which comprises a formation clamping seat, wherein pushing plates and bearing plates are respectively arranged at two ends of the inside of the formation clamping seat, a plurality of clamping plates are arranged between the pushing plates and the bearing plates, a plurality of guide rods are fixedly connected to the formation clamping seat, the pushing plates, the bearing plates and the clamping plates are all in sliding connection with the guide rods, and a driving assembly for driving the pushing plates to move is arranged on the formation clamping seat.

Inventors

ZHANG KUNMING
LI SIQI
LIU HAIBIN

Assignees

深圳市智佳能自动化有限公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. The formation device for manufacturing the lithium battery comprises a formation clamping seat, and is characterized in that pushing plates and bearing plates are respectively arranged at two ends of the inside of the formation clamping seat, a plurality of clamping plates are arranged between the pushing plates and the bearing plates, a plurality of guide rods are fixedly connected to the formation clamping seat, the pushing plates, the bearing plates and the clamping plates are all in sliding connection with the guide rods, and a driving assembly for driving the pushing plates to move is arranged on the formation clamping seat; Two groups of limit bars are arranged between two adjacent clamping plates, the number of each group of limit bars is two, limit shafts are hinged at the centers of the two limit bars of the same group, two ends of each limit bar are rotationally connected with sliding blocks, the sliding blocks are slidingly connected to the side surfaces of the corresponding clamping plates, two limit frames are arranged on one side, close to the clamping plates, of each group of limit bars, each limit frame is fixedly connected with a bar-shaped grooved rail, two limit pins are slidingly limited in the bar-shaped grooved rail, the two limit pins are fixedly connected to the corresponding limit bars respectively, movable bars are slidingly connected to the limit frames, and matched sliding assemblies are arranged on the movable bars and used for driving the movable bars to synchronously slide along with the corresponding bar-shaped grooved rails; two standing grooves are formed in the limiting frame, pressing blocks are arranged in the standing grooves, movable clamping assemblies are arranged on the limiting frame and used for driving the pressing blocks to be in movable contact with the lugs.
2. The formation device for manufacturing the lithium battery according to claim 1, wherein the matching sliding assembly comprises two rectangular strips, the two rectangular strips are respectively arranged on two sides of the formation clamping seat, one end of each movable strip is fixedly connected with a rectangular lantern ring, and the rectangular lantern rings are slidably sleeved on the corresponding rectangular strips.
3. The formation device for manufacturing the lithium battery according to claim 2, wherein the movable clamping assembly comprises two fixing brackets, the two fixing brackets are respectively and slidably connected to two sides of the formation clamping seat, the two rectangular strips are respectively and fixedly connected to the two fixing brackets, two mounting plates are respectively and slidably connected to the inside of the limiting frame, two connecting pins are fixedly connected to one sides of the pressing blocks, the connecting pins are slidably inserted into the corresponding mounting plates, first springs are respectively sleeved on the connecting pins, the first springs are fixedly connected between the corresponding mounting plates and the pressing blocks, inclined guide grooves are respectively formed in the top and the bottom of each movable strip, round pins are fixedly connected to the mounting plates, one ends of the round pins are respectively located in the corresponding inclined guide grooves, and reverse driving assemblies are arranged on the two fixing brackets.
4. The formation device for manufacturing the lithium battery according to claim 3, wherein the back driving assembly comprises a bidirectional screw rod, the bidirectional screw rod is rotatably connected to the formation clamping seat, the bottoms of the two fixing brackets are fixedly connected with mounting bars, the two mounting bars are respectively in threaded connection with two ends of the bidirectional screw rod, the formation clamping seat is fixedly provided with a first motor, and an output shaft of the first motor is fixedly connected to one end of the bidirectional screw rod.
5. The formation device for manufacturing the lithium battery according to claim 1, wherein the two sides of the clamping plate are fixedly connected with barrier strips, the barrier strips are positioned between the two corresponding sliding blocks, and the formation clamping seat is provided with an unfolding assembly.
6. The device for manufacturing a lithium battery according to claim 5, wherein the unfolding assembly comprises a plurality of first limiting rings and a plurality of second limiting rings, the plurality of first limiting rings are fixedly connected to the clamping plates close to the pushing plates, the first retaining pins are slidably inserted into the first limiting rings, the plurality of first retaining pins are fixedly connected to the pushing plates, the plurality of second limiting rings are fixedly connected to the clamping plates close to the bearing plates, the second retaining pins are slidably inserted into the second limiting rings, and the plurality of second retaining pins are fixedly connected to the forming clamping seats.
7. The formation device for manufacturing the lithium battery according to claim 1, wherein the driving assembly comprises two transmission screw rods, the two transmission screw rods are all rotationally connected to the inside of the formation clamping seat, the two transmission screw rods are all in threaded connection with the pushing plate, one ends of the two transmission screw rods are all fixedly connected with transmission gears, a second motor is fixedly installed on the formation clamping seat, a driving gear is fixedly connected to an output shaft of the second motor, a plurality of matched gears are all rotationally meshed between the driving gear and the transmission gears, and the plurality of matched gears are all rotationally connected to the formation clamping seat.
8. The formation device for manufacturing the lithium battery according to claim 1, wherein a pressure-bearing ball head is fixedly connected to one side of the pressure-bearing plate, which is far away from the pushing plate, and a pressure sensor is fixedly installed on the formation clamping seat and is contacted with the pressure sensor.
9. The device for manufacturing a lithium battery according to claim 8, wherein a buffer plate is arranged on one side of the bearing plate, which is close to the pushing plate, and a plurality of second springs are fixedly connected between the buffer plate and the bearing plate.
10. The formation device for manufacturing the lithium battery according to claim 1, wherein a U-shaped pipe is fixedly arranged above the formation clamping seat, and a plurality of spray heads are fixedly communicated with the U-shaped pipe.

Description

Formation device for lithium battery manufacturing Technical Field The invention relates to the technical field of lithium battery processing, in particular to a formation device for manufacturing a lithium battery. Background The battery formation is a key activation procedure of battery manufacture, and a stable solid electrolyte interface film is formed on the surface of the negative electrode through first charge and discharge, so that the continuous decomposition of electrolyte can be effectively prevented, and the cycle life, safety and self-discharge performance of the battery are improved. Accurate control of the formation process directly affects the final capacity and consistency of the battery, and is a key step in determining the quality of the battery. The patent document with the bulletin number of CN107978798B discloses lithium battery formation equipment, which comprises two opposite supporting seats, wherein a plurality of guide posts are arranged between the two supporting seats, a pressing component is sleeved on the plurality of guide posts, a pushing mechanism drives the pressing component to slide along the guide posts, and an adjusting mechanism for adjusting the upper and lower positions of a multi-piece formation layer board component and a PCB component which is arranged on the formation layer board component and attached to a lithium battery tab is arranged between the two supporting seats. When the lithium battery is formed, the lithium battery is required to be clamped through unidirectional movement of the clamping plates, and the two sides of the lithium battery lug are in press fit contact through the lug pressing plates, when the clamping plates move to one end and push and clamp the lithium batteries, the lug pressing plates close to one side of the movement direction of the lithium battery lug can be extruded in contact with the lithium battery lug at first, and unidirectional oblique deformation of the lug is caused in the subsequent pushing process, so that the flatness of the lug is reduced, and stacking and dislocation are easily generated in the process of pressing the two sides. Disclosure of Invention The invention aims to solve the defects in the prior art and provides a formation device for manufacturing a lithium battery. In order to achieve the purpose, the formation device for manufacturing the lithium battery comprises a formation clamping seat, wherein pushing plates and bearing plates are respectively arranged at two ends of the interior of the formation clamping seat, a plurality of clamping plates are arranged between the pushing plates and the bearing plates, a plurality of guide rods are fixedly connected to the formation clamping seat, the pushing plates, the bearing plates and the clamping plates are all in sliding connection with the guide rods, and a driving assembly for driving the pushing plates to move is arranged on the formation clamping seat; Two groups of limit bars are arranged between two adjacent clamping plates, the number of each group of limit bars is two, limit shafts are hinged at the centers of the two limit bars of the same group, two ends of each limit bar are rotationally connected with sliding blocks, the sliding blocks are slidingly connected to the side surfaces of the corresponding clamping plates, two limit frames are arranged on one side, close to the clamping plates, of each group of limit bars, each limit frame is fixedly connected with a bar-shaped grooved rail, two limit pins are slidingly limited in the bar-shaped grooved rail, the two limit pins are fixedly connected to the corresponding limit bars respectively, movable bars are slidingly connected to the limit frames, and matched sliding assemblies are arranged on the movable bars and used for driving the movable bars to synchronously slide along with the corresponding bar-shaped grooved rails; two standing grooves are formed in the limiting frame, pressing blocks are arranged in the standing grooves, movable clamping assemblies are arranged on the limiting frame and used for driving the pressing blocks to be in movable contact with the lugs. Preferably, the matching sliding assembly comprises two rectangular strips, the two rectangular strips are respectively arranged on two sides of the formation clamping seat, one end of the movable strip is fixedly connected with a rectangular lantern ring, and the rectangular lantern ring is slidably sleeved on the corresponding rectangular strip. Preferably, the movable clamping assembly comprises two fixing brackets, the two fixing brackets are respectively connected to two sides of the formation clamping seat in a sliding mode, the two rectangular strips are respectively and fixedly connected to the two fixing brackets, two mounting plates are respectively and fixedly connected to the inside of the limiting frame, two connecting pins are fixedly connected to one sides of the pressing block, the connecting pins are slidably inse