Automatic pressing and detecting device for battery cell tabs

Abstract

The utility model discloses an automatic cell tab pressing and detecting device which comprises a pressing device installed on a machine tool body and a detecting device installed on the machine tool body and located on the side face of the pressing device, and a conveying belt is installed on the front side of the pressing device and the front side of the detecting device and located on the machine tool body. Through the designed clamping mechanism, the phenomenon that in the original battery cell tab batch pressing and testing process, due to the fact that the positions of protruding blocks used for fixing the positions of the battery cell tabs are fixed, the battery cell tabs of different sizes and numbers cannot be clamped, and the situation that the battery cell tabs are unstable in the conveying process through a conveying belt is avoided; through the clamping mechanism, the positions of the battery cell tabs are fixed through the clamping mechanism in the batch press fit detection processing process, the size of the clamping mechanism can be adjusted according to the battery cell tabs of different numbers and different sizes, and the stability of the battery cell tabs in the press fit and detection processing process is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery processing technology, specifically relating to an automatic cell tab pressing and testing device. Background Technology

[0002] The automatic tab pressing and testing device is an important piece of equipment in the lithium battery production process. Through the pressing process of the tabs, the tabs are tightly connected to the electrode foil inside the cell, reducing contact resistance and making the bond between the tabs and electrode foil stronger. This improves the tabs' resistance to tension and vibration during battery use, and increases the contact area between the tabs and electrode foil, which is beneficial for heat conduction and dissipation. Then, by inspecting the appearance, size, and connection strength of the pressed tabs, defects that may occur during the pressing process can be detected in time.

[0003] In existing automatic cell tab pressing and testing devices, batches of cell tabs are arranged on a shelf and locked in place by protrusions on the inside of the shelf. A conveyor belt transports the shelf, and the cell tabs are pressed and tested by a pressing device and a testing device. However, the position of the protrusions that fix the position of the batch of cell tabs cannot be adjusted, which makes it impossible to fix the position of cell tabs of different sizes and ensure the stability of the pressing and testing process. Therefore, this utility model proposes an automatic cell tab pressing and testing device. Utility Model Content

[0004] The purpose of this invention is to provide an automatic pressing and testing device for battery cell tabs, in order to solve the problem mentioned in the background art that the position of the protrusion used to fix the position of the battery cell tabs during the pressing and testing process cannot be adjusted, thus making it impossible to fix the position of battery cell tabs of different sizes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic battery cell tab pressing and testing device, comprising a pressing device mounted on the main body of a machine tool, and a testing device mounted on the main body of the machine tool and located on the side of the pressing device. A conveyor belt is installed on the front side of the pressing device and the front side of the testing device, located on the main body of the machine tool. A shelf is provided on the conveyor belt, and a locking mechanism is provided on the inner side of the shelf. The locking mechanism consists of symmetrically arranged support assemblies. The support assemblies consist of a limiting frame, an adjusting frame, and a lateral adjusting mechanism. The adjusting frame is located on the side of the limiting frame, and the lateral adjusting mechanism is located at the connection between one end of the limiting frame and one end of the adjusting frame.

[0006] Preferably, the cross-section of the adjusting frame and the cross-section of the limiting frame are both L-shaped structures.

[0007] Preferably, the lateral adjustment mechanism consists of a lateral adjustment component and symmetrically arranged splicing components. The lateral adjustment component consists of a rotating groove, a rotating rod, and a rotating groove. The rotating groove is opened at one end of the limiting frame, the rotating groove is opened at one end of the adjusting frame, and the rotating rod is located at the connection between one end of the limiting frame and one end of the adjusting frame. One end of the rotating rod is inserted into the inner side of the rotating groove, and the other end of the rotating rod is threaded into the inner side of the rotating groove.

[0008] Preferably, one end of the rotating rod is in contact with the inner side of the rotating groove.

[0009] Preferably, the splicing assembly consists of a splicing groove and a splicing block. The splicing groove is formed on one end surface of the adjusting frame, and the splicing block is fixed to one end of the limiting frame. The end of the splicing block is inserted into the inner side of the splicing groove.

[0010] Preferably, a longitudinal adjustment component is provided between the other end of the symmetrically arranged limiting frame and the other end of the symmetrically arranged adjusting frame. The longitudinal adjustment component consists of a movable groove, an adjusting rod, and an adjusting groove. The movable groove is opened at the other end of one of the adjusting frames and the other end of one of the limiting frames. The adjusting groove is opened at the other end of the other limiting frame and the other end of the other adjusting frame. One end of the adjusting rod is inserted into the inner side of the movable groove, and the other end of the adjusting rod is inserted into the inner side of the adjusting groove.

[0011] Preferably, the pressing device consists of a bracket A, a hydraulic cylinder B, and a pressing head. The hydraulic cylinder B is installed on the front side of the bracket A, and the pressing head is installed at the bottom end of the hydraulic cylinder B.

[0012] Preferably, the detection device consists of a hydraulic cylinder A, a bracket B, and a detection head. The hydraulic cylinder A is installed on the bracket B for detection, the detection head is installed at the bottom end of the hydraulic cylinder A, and an industrial camera is installed on the hydraulic cylinder A.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By designing a locking mechanism, the previous method of fixing the position of the protrusions used to fix the battery cell tabs during batch pressing and testing was improved. This method was unable to clamp battery cell tabs of different sizes and quantities, resulting in instability during conveyor belt transport. By setting a locking mechanism on the shelf, the battery cell tabs are fixed in position during batch pressing and testing. Moreover, the locking mechanism can be adjusted according to different quantities and sizes of battery cell tabs, ensuring the stability of the battery cell tabs during pressing and testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the engaging mechanism of this utility model;

[0017] Figure 3 This is a cross-sectional view of one side of the splicing joint of the locking mechanism of this utility model;

[0018] In the diagram: 1. Machine tool body; 2. Conveyor belt; 3. Shelf; 4. Clamping mechanism; 40. Longitudinal adjustment assembly; 401. Movable groove; 402. Adjusting rod; 403. Adjusting groove; 41. Limiting frame; 42. Adjusting frame; 43. Lateral adjustment mechanism; 431. Lateral adjustment assembly; 4311. Rotary groove; 4312. Rotating rod; 4313. Rotary groove; 432. Splicing assembly; 4321. Splicing groove; 4322. Splicing block; 5. Pressing device; 51. Support A; 52. Hydraulic cylinder B; 53. Press head; 6. Detection device; 61. Hydraulic cylinder A; 62. Support B; 63. Detection head. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3This utility model provides a technical solution: an automatic battery cell tab pressing and testing device, including a pressing device 5 installed on the main body 1 of a processing machine tool, and a testing device 6 installed on the main body 1 of the processing machine tool and located on the side of the pressing device 5. A conveyor belt 2 is installed on the front side of the pressing device 5 and the front side of the testing device 6 on the main body 1 of the processing machine tool. The battery cell tabs are automatically conveyed by the conveyor belt 2 for pressing and testing. A shelf 3 is provided on the conveyor belt 2, and a locking mechanism 4 is provided on the inner side of the shelf 3. The locking mechanism 4 consists of symmetrically arranged bracket assemblies, which fix the position of the battery cell tabs. The bracket assemblies consist of a limiting frame 41, an adjusting frame 42, and a lateral adjusting mechanism 43. The adjusting frame 42 is located on the side of the limiting frame 41 for lateral adjustment. Mechanism 43 is located at the connection between one end of the limiting frame 41 and one end of the adjusting frame 42. Through the designed locking mechanism 4, it improves upon the previous batch pressing and testing process of battery cell tabs, where the fixed position of the protrusions used to fix the battery cell tabs prevented clamping of battery cell tabs of different sizes and quantities, causing instability during conveyor belt 2 transport. By setting the locking mechanism 4 on the shelf 3, the battery cell tabs are fixed in position during batch pressing and testing. Furthermore, the locking mechanism 4 can be adjusted in size according to different quantities and sizes of battery cell tabs, ensuring the stability of the battery cell tabs during pressing and testing. The cross-sections of the adjusting frame 42 and the limiting frame 41 are both L-shaped structures, allowing for lateral adjustment. The joint mechanism 43 consists of a lateral adjustment component 431 and symmetrically arranged splicing components 432. The lateral adjustment component 431 consists of a rotating groove 4311, a rotating rod 4312, and a rotating groove 4313. The rotating groove 4311 is located at one end of the limiting frame 41, and the rotating groove 4313 is located at one end of the adjusting frame 42. The rotating rod 4312 is located at the connection between one end of the limiting frame 41 and one end of the adjusting frame 42. One end of the rotating rod 4312 is inserted into the inner side of the rotating groove 4311, and the other end of the rotating rod 4312 is inserted into the inner side of the rotating groove 4313 via a threaded connection. One end of the rotating rod 4312 is in a fitted state with the inner side of the rotating groove 4311. The splicing component 432 consists of a splicing groove 4321 and a splicing block 4322. The splicing groove 4321 is located at the adjusting frame 42. On one end surface, the splicing block 4322 is fixed to one end of the limiting frame 41. The end of the splicing block 4322 is inserted into the inner side of the splicing groove 4321. Through the splicing assembly 432, the flatness of the splicing point between the limiting frame 41 and the adjusting frame 42 is ensured while maintaining the telescopic adjustability of the splicing assembly. The pressing device 5 consists of a bracket A51, a hydraulic cylinder B52, and a pressing head 53. The hydraulic cylinder B52 is installed on the front side of the bracket A51, and the pressing head 53 is installed at the bottom end of the hydraulic cylinder B52. The hydraulic cylinder B52 drives the pressing head 53 downward, so that the electrode tab is firmly pressed into the battery cell or connecting component. The detection device 6 consists of a hydraulic cylinder A61, a bracket B62, and a detection head 63. The hydraulic cylinder A61 is installed on the detection side of the bracket B62, and the detection head 63 is installed at the bottom end of the hydraulic cylinder A61.An industrial camera is mounted on the hydraulic cylinder A61. With the aid of a light source, the camera captures images of the electrode tabs. An image acquisition card transmits the images to a computer, where image processing software analyzes the images to check if the position, shape, size, and surface defects of the electrode tabs meet standards.

[0021] In this embodiment, preferably, a longitudinal adjustment component 40 is provided between the other end of the symmetrically arranged limiting frame 41 and the other end of the symmetrically arranged adjusting frame 42. The longitudinal adjustment component 40 consists of a movable groove 401, an adjusting rod 402, and an adjusting groove 403. The movable groove 401 is opened at the other end of one of the adjusting frames 42 and the other end of one of the limiting frames 41. The longitudinal dimension of the support assembly can be adjusted by the longitudinal adjustment component 40 to meet the requirements of clamping battery cell tabs of different widths. The adjusting groove 403 is opened at the other end of the other limiting frame 41 and the other end of the other adjusting frame 42. One end of the adjusting rod 402 is inserted into the inner side of the movable groove 401, and the other end of the adjusting rod 402 is inserted into the inner side of the adjusting groove 403.

[0022] The working principle and usage process of this utility model are as follows: When it is necessary to perform pressing and testing on the battery cell tabs to be processed, the batch of battery cell tabs to be processed are first placed on the shelf 3 and fixed by the clamping mechanism 4. By first rotating the adjusting rod 402, one end of the adjusting rod 402 rotates inside the movable groove 401, and the other end of the adjusting rod 402 rotates threaded inside the adjusting groove 403, adjusting the distance between the symmetrically arranged bracket components. Then, the rotating rod 4312 is rotated, one end of the rotating rod 4312 rotates inside the rotating groove 4311, and the other end of the rotating rod 4312 rotates threaded inside the rotating groove 4313, clamping and fixing the batch of battery cell tabs. The shelf 3 is automatically transported by the conveyor belt 2. During the transport process, the battery cell tabs are pressed by the pressing device 5, and the battery cell tabs are tested by the testing device 6.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic battery cell tab pressing and testing device, comprising a pressing device (5) mounted on a machine tool body (1) and a testing device (6) mounted on the machine tool body (1) and located on the side of the pressing device (5), characterized in that: The front side of the pressing device (5) and the front side of the detection device (6) are connected to a conveyor belt (2) on the main body (1) of the machine tool. A shelf (3) is provided on the conveyor belt (2), and a locking mechanism (4) is provided on the inner side of the shelf (3). The locking mechanism (4) is composed of a symmetrically arranged support assembly. The support assembly consists of a limiting frame (41), an adjusting frame (42), and a transverse adjusting mechanism (43). The adjusting frame (42) is located on the side of the limiting frame (41), and the transverse adjusting mechanism (43) is located at the connection between one end of the limiting frame (41) and one end of the adjusting frame (42).

2. The device according to claim 1, wherein: The cross-sections of the adjustment frame (42) and the limiting frame (41) are both L-shaped structures.

3. The device according to claim 1, wherein: The lateral adjustment mechanism (43) consists of a lateral adjustment component (431) and a symmetrically arranged splicing component (432). The lateral adjustment component (431) consists of a rotating groove (4311), a rotating rod (4312), and a rotating groove (4313). The rotating groove (4311) is opened at one end of the limiting frame (41), and the rotating groove (4313) is opened at one end of the adjusting frame (42). The rotating rod (4312) is located at the connection between one end of the limiting frame (41) and one end of the adjusting frame (42). One end of the rotating rod (4312) is inserted into the inner side of the rotating groove (4311), and the other end of the rotating rod (4312) is inserted into the inner side of the rotating groove (4313) by a threaded connection.

4. The device according to claim 3, characterized in that: One end of the rotating rod (4312) is in contact with the inner side of the rotating groove (4311).

5. The device according to claim 3, wherein: The splicing assembly (432) consists of a splicing groove (4321) and a splicing block (4322). The splicing groove (4321) is opened on one end surface of the adjusting frame (42), and the splicing block (4322) is fixed to one end of the limiting frame (41). The end of the splicing block (4322) is inserted into the inside of the splicing groove (4321).

6. The device according to claim 1, wherein: A longitudinal adjustment component (40) is provided between the other end of the symmetrically arranged limiting frame (41) and the other end of the symmetrically arranged adjusting frame (42). The longitudinal adjustment component (40) consists of a movable groove (401), an adjusting rod (402), and an adjusting groove (403). The movable groove (401) is opened at the other end of one of the adjusting frames (42) and the other end of one of the limiting frames (41). The adjusting groove (403) is opened at the other end of the other limiting frame (41) and the other end of the other adjusting frame (42). One end of the adjusting rod (402) is inserted into the inner side of the movable groove (401), and the other end of the adjusting rod (402) is inserted into the inner side of the adjusting groove (403).

7. The device according to claim 1, wherein: The pressing device (5) consists of a bracket A (51), a hydraulic cylinder B (52), and a pressing head (53). The hydraulic cylinder B (52) is installed on the front side of the bracket A (51), and the pressing head (53) is installed on the bottom end of the hydraulic cylinder B (52).

8. The device according to claim 1, wherein: The detection device (6) is composed of hydraulic cylinder A (61), support B (62), detection head (63), the hydraulic cylinder A (61) is installed in the detection of support B (62), the detection head (63) is installed at the bottom end of hydraulic cylinder A (61), and an industrial camera is installed on the hydraulic cylinder A (61).

Images