CN210443617U

CN210443617U - Tab compression limiting device

Info

Publication number: CN210443617U
Application number: CN201921974488.2U
Authority: CN
Inventors: 江涛; 赖振宏; 毛雪林; 蔡海生
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-05-01
Anticipated expiration: 2029-11-14

Abstract

The application relates to a lug pressing limiting device, and belongs to the field of automatic battery production equipment. The application provides a utmost point ear compresses tightly stop device can guarantee utmost point ear shape and rigidity after the welding to make the accurate income shell of electric core. The embodiment of the application provides a lug pressing and limiting device which comprises a rack, a first limiting mechanism and a second limiting mechanism, wherein the first limiting mechanism and the second limiting mechanism are both arranged on the rack; the first limiting mechanism is used for preventing the first bending part of the tab from loosening and rebounding; the second limiting mechanism is used for preventing the second bending part of the tab from loosening and rebounding. The lug pressing and limiting device can ensure that the shape and the position of the lug after welding are fixed, so that the deviation rectifying and positioning steps are smoothly carried out, and further, the battery cell smoothly enters the shell.

Description

Tab compression limiting device

Technical Field

The application relates to the field of automatic battery production equipment, in particular to a lug compression limiting device.

Background

In the production of the battery, the tab needs to be bent, and then the welding process and the shell entering process of the battery core tab are sequentially carried out. The welding process is to weld the same-polarity electrode lugs on the battery cell and the two ends of the corresponding adapter sheet together, and the shell entering process is to place the battery cell in the aluminum film, perform deviation rectification and positioning on the electrode lugs, fold the aluminum film into a shell, and realize the shell entering of the battery cell.

However, the tab is easy to loosen and rebound after being bent and welded, and when the battery cell reaches the shell entering station after being processed by a plurality of stations, the position and the shape of the tab are shifted, which is not beneficial to the subsequent tab deviation rectifying and positioning step and the aluminum film folding step.

SUMMERY OF THE UTILITY MODEL

Therefore, the application provides a lug compressing and limiting device which can ensure that the shape and the position of a lug after welding are fixed, so that the deviation rectifying and positioning steps are smoothly carried out, and further, an electric core smoothly enters a shell.

The embodiment of the application provides a lug pressing and limiting device which comprises a rack, a first limiting mechanism and a second limiting mechanism, wherein the first limiting mechanism and the second limiting mechanism are both arranged on the rack; the first limiting mechanism is used for preventing the first bending part of the tab from loosening and rebounding; the second limiting mechanism is used for preventing the second bending part of the tab from loosening and rebounding.

The utility model provides a utmost point ear compresses tightly stop device carries out spacing compressing tightly to the not hard up bounce-back of the first portion of bending, the second portion of bending of utmost point ear, does benefit to the utmost point ear and puts into the aluminium membrane smoothly when going into the shell, does benefit to subsequent utmost point ear location step and aluminium membrane and turns over a step.

In addition, the lug pressing and limiting device according to the embodiment of the application also has the following additional technical characteristics:

according to some embodiments of the present application, the first limiting mechanism includes a first driving mechanism and a first limiting block, the first driving mechanism is mounted to the frame and is capable of driving the first limiting block to approach or depart from the first bending portion of the tab along the first direction. This kind of arrangement form not only can play the effect that compresses tightly the root of utmost point ear, and does benefit to the equipment.

According to some embodiments of the application, the first limiting block comprises a first limiting block body and a limiting assembly, the first limiting block body is installed at the movable end of the first driving mechanism, and the limiting assembly is installed on the first limiting block body and used for being abutted to the root of the lug. This kind of arrangement form can be based on the position of two utmost point ears of electric core adjust the position of spacing subassembly for first stopper body in a flexible way, and do benefit to the change and maintain.

According to some embodiments of the present application, the rack further includes a cell placement platform for placing the cell, and the first driving mechanism is installed in the cell placement platform. This kind of arrangement form does benefit to the mounted position of confirming first actuating mechanism, and dodges sufficient action space for first stop gear.

According to some embodiments of the application, the tab compressing and limiting device further comprises a second position detection mechanism, the second position detection mechanism is used for sending an in-place signal when detecting that the battery cell reaches a preset position on the rack, and the first driving mechanism responds to the in-place signal and starts to act. The second position detection mechanism can detect that the battery core is in place and sends a position signal, so that the lug pressing and limiting device can automatically act.

According to some embodiments of the application, the second limiting mechanism comprises a second driving mechanism and a second limiting block, the second driving mechanism is installed on the rack and can drive the second limiting block to be close to or far away from the front end of the tab. This kind of arrangement form not only can play the effect that compresses tightly the front end of utmost point ear, and does benefit to the equipment.

According to some embodiments of the application, the second limiting block is provided with a clamping angle, and the clamping angle is used for abutting against the front end of the tab. The clamping angle can prevent the second bending part from loosening and rebounding, can avoid excessive bending of the lug, and ensures safe operation of the second limiting mechanism.

According to some embodiments of the present application, the second driving mechanism includes a traverse driving mechanism, an oblique driving mechanism, and a mount table; the transverse moving driving mechanism is arranged on the rack and can drive the mounting table to be close to or far away from the lug along a second direction; an oblique driving mechanism is arranged on the mounting table; the oblique driving mechanism can drive the second limiting block to extend out obliquely relative to the mounting table so as to be close to the front end of the lug. The arrangement form not only can play a role of compressing the front ends of the tabs, but also can avoid the laser ray of the second position detection mechanism.

According to some embodiments of the present application, the tab limiting and pressing device further comprises a first position detecting mechanism for sending a first position signal when the mounting table moves to the first position; the oblique driving mechanism is used for responding to the first position signal and driving the second limiting block to extend out. The oblique driving mechanism pushes out the second limiting block in an oblique mode at the first position, and the laser ray of the second position detection mechanism can be avoided.

According to some embodiments of the application, the tab compressing and limiting device further comprises a second position detection mechanism, the second position detection mechanism is used for sending an in-place signal when detecting that the battery cell reaches a preset position on the rack, and the second driving mechanism responds to the in-place signal and starts to act. The second position detection mechanism can detect that the battery core is in place and sends a position signal, so that the lug pressing and limiting device can automatically act.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a view angle of a tab compressing and limiting device in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of a battery cell in an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

fig. 5 is a schematic structural diagram of a frame of a tab compression limiting device in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another view angle of the tab compression limiting device in the embodiment of the present application;

FIG. 7 is an enlarged view of a portion of FIG. 6 at C;

fig. 8 is a schematic structural diagram of a first limiting mechanism of a tab compression limiting device in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a third view angle of the tab compressing and limiting device in the embodiment of the present application;

FIG. 10 is an enlarged view of a portion of FIG. 9 at D;

fig. 11 is a partial enlarged view at E in fig. 4.

Icon: 100-a lug compression limiting device; 110-a rack; 111-cell placement platform; 1111-preset position; 120-a first stop mechanism; 121-a first drive mechanism; 122-a first stopper; 1221-a first stopper body; 1222-a stopper; 1223-a first stop surface; 130-a second limiting mechanism; 131-a second drive mechanism; 1311-a traverse driving mechanism; 1312-oblique drive mechanism; 1313-mounting table; 1314-a second movable end; 1315-third active end; 132-a second stopper; 1321-ka jiao; 1322-a second limiting surface; 140-a first position detection mechanism; 141-a first position sensor; 1411-grooves; 142-a second position sensor; 143-origin position sensor; 144-a marker; 1441 — first end; 1442-second end; 150-a second position detection mechanism; 151-first fiber-optic correlation sensor; 1511-first transmitting end; 1512-a first detection end; 152-a second fiber optic correlation sensor; 1521-a second transmitting end; 1522-second detection terminal; 200-electric core; 300-pole ear; 310-a first bend; 320-a second bend; 330-first side; 340-a second face; 350-root part; 360-front end; 400-a grasping device; 410-a robotic arm; 420-a grasping mechanism; 421-an adsorption mechanism; 422-clamping jaw mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and fig. 2, a tab compressing and limiting device 100 according to an embodiment of the present disclosure includes a frame 110, a first limiting mechanism 120, and a second limiting mechanism 130, where the first limiting mechanism 120 and the second limiting mechanism 130 are both mounted on the frame 110.

Referring to fig. 3, 4 and 11, in some embodiments of the present application, the battery cell 200 includes two tabs 300, and each tab 300 is bent by a stamping process and has a first bending portion 310 and a second bending portion 320. The rack 110 is provided with a preset position 1111 for placing the battery cell 200, and when the battery cell 200 is placed at the preset position 1111, the first limiting mechanism 120 and the second limiting mechanism 130 can both be close to the tab 300. The first limiting mechanism 120 is used for preventing the first bending portion 310 from loosening and rebounding, and the second limiting mechanism 130 is used for preventing the second bending portion 320 from loosening and rebounding.

In other embodiments, the tab 300 may have other shapes, and the number and the positions of the limiting mechanism and the bent portion correspond to each other.

It is easy to understand that the tab compressing and limiting device 100 can compress and limit the tab 300, prevent the first bending part 310 and the second bending part 320 from loosening and rebounding, so that the deviation-correcting and positioning steps can be smoothly performed, and the battery cell can smoothly enter the shell.

The structure and the mutual positional relationship of the components of the tab compressing and limiting device 100 according to the embodiment of the present application are described below.

Referring to fig. 5, a cell placing platform 111 and a grabbing device 400 are mounted on the frame 110.

Cell placement platform 111 is used for placing electric core 200, is equipped with on cell placement platform 111 and predetermines position 1111, predetermines position 1111 and is used for placing electric core 200. As can be easily understood, the first limiting mechanism 120 and the second limiting mechanism 130 are both mounted to the frame 110, that is, the positions of the base of the first limiting mechanism 120 and the base of the second limiting mechanism 130 relative to the cell placement platform 111 are fixed, which facilitates accurate positioning of the tab 300, so as to precisely press the first bending portion 310 and the second bending portion 320 of the tab 300.

Referring to fig. 5, the gripping device 400 is used to load the battery cell 200 onto the battery cell placement platform 111, position the battery cell 200 at the predetermined position 1111, and take away the battery cell 200 from the battery cell placement platform 111.

The grasping apparatus 400 includes a robot arm 410 and a grasping mechanism 420, and the grasping mechanism 420 is disposed at an end of the robot arm 410. The grabbing mechanism 420 includes an adsorption mechanism 421 and a clamping jaw mechanism 422, the lower end of the adsorption mechanism 421 adsorbs the battery cell 200, and the clamping jaw mechanism 422 is protected at the lower end of the battery cell 200.

As an example form of loading the battery cell 200 to the preset position 1111, after the adsorption mechanism 421 adsorbs the battery cell 200, the clamping jaw mechanism 422 protects the battery cell 200, and the mechanical arm 410 drives the grabbing mechanism 420 to move, so as to place the battery cell 200 at the preset position 1111 of the battery cell placement platform 111. It is easy to understand, in the working process of the tab compressing limiting device 100, the adsorbing mechanism 421 adsorbs the battery cell 200 all the time, and the battery cell 200 is always in the preset position 1111. In other embodiments, a clamping mechanism (not shown) may be disposed around the cell placement platform 111 to fix the cell 200 at the preset position 1111.

Referring to fig. 1 again, the first limiting mechanism 120 is used to prevent the first bending portion 310 of the tab 300 from loosening and rebounding, and a specific form of the first limiting mechanism 120 is described below.

Referring to fig. 6, 7 and 8, the first limiting mechanism 120 includes a first driving mechanism 121 and a first limiting block 122, and the first driving mechanism 121 can drive the first limiting block 122 to approach or depart from the first bending portion 310 of the tab 300 along the first direction (see fig. 11). The first driving mechanism 121 is installed on the frame 110, the first driving mechanism 121 includes a first movable end (not shown), and a first limiting block 122 is installed at the first movable end.

In some embodiments of the present application, a battery cell placing rack is disposed on the battery cell placing platform 111, the battery cell placing rack corresponds to the preset position 1111, and the first driving mechanism 121 is mounted on the lower side of the battery cell placing rack to avoid interference with the second limiting mechanism 130; in other embodiments, the first driving mechanism 121 may be mounted at other positions of the frame 110.

Referring to fig. 8, in some embodiments of the present application, the first stopper 122 includes a first stopper body 1221 and a stopper assembly, the first stopper body 1221 is installed at the movable end of the first driving mechanism 121, and the stopper assembly is used for abutting against the root of the tab. The limiting assembly includes two limiting members 1222, and the limiting members 1222 are in one-to-one correspondence with the tabs 300. Each stopper 1222 is detachably mounted to the first stopper body 1221, and corresponds to the position of the tab 300. Taking one of the position-limiting members 1222 as an example, the position-limiting member 1222 includes a first position-limiting surface 1223. When the first driving mechanism 121 drives the first stopper 122 to approach the first bending portion 310 of the tab 300, the first stopper 122 approaches the root 350 of the tab 300 (see fig. 11), and the first stopper surface 1223 abuts against the first surface 330 of the tab 300.

Referring to fig. 1 again, the second limiting mechanism 130 is used to prevent the second bending portion 320 (see fig. 11) of the tab 300 from loosening and rebounding, and a specific form of the second limiting mechanism 130 is described below.

Referring to fig. 6 and 7, the second limiting mechanism 130 includes a second driving mechanism 131 and a second limiting block 132, and the second driving mechanism 131 is mounted on the frame 110 and can drive the second limiting block 132 to approach or separate from the front end 360 of the tab 300 (see fig. 4).

Referring to fig. 2, the second driving mechanism 131 includes a traverse driving mechanism 1311, a diagonal driving mechanism 1312, and a mounting table 1313. The traverse driving mechanism 1311 is mounted to the frame 110, the traverse driving mechanism 1311 includes a second movable end 1314, the second movable end 1314 is mounted on a mounting plate 1313, the oblique driving mechanism 1312 is mounted on the mounting plate 1313, the oblique driving mechanism 1312 includes a third movable end 1315, and the third movable end 1315 is mounted on the second stopper 132 (see fig. 6). Wherein the traverse driving mechanism 1311 can drive the mounting table 1313 to approach or separate from the tab 300 in the second direction, and the oblique driving mechanism 1312 can drive the second stopper 132 to extend obliquely with respect to the mounting table 1313 so as to approach the front end 360 of the tab 300.

Referring to fig. 7, the second limiting block 132 includes a clamping angle 1321, and the clamping angle 1321 is used for abutting against the front ends 360 of the two tabs 300 (see fig. 4). Specifically, the portion of the second stopper 132 forming the clamping angle 1321 has a second stopper surface 1322, and the second stopper surface 1322 is configured to abut against the second surface 340 of the tab 300.

Referring to fig. 6, in some embodiments of the present application, the battery cells 200 are arranged horizontally, the first direction is a vertical direction, and the second direction is a horizontal direction. In other embodiments, the specific orientations of the first direction and the second direction are specifically determined according to the placement form of the battery cell 200 and the shape of the tab 300.

Referring to fig. 1 again, the tab compressing and limiting device 100 further includes a first position detecting mechanism 140 and a second position detecting mechanism 150.

Referring to fig. 1 and 2, the first position detecting mechanism 140 is used to detect the position of the mounting table 1313 relative to the frame 110 and send a corresponding position signal to an external controller, which is a specific form of the first position detecting mechanism 140 described below.

Referring to fig. 6, the first position detecting mechanism 140 includes a first position sensor 141, a second position sensor 142, an origin position sensor 143, and a marking member 144.

The positions of the first position sensor 141, the second position sensor 142, and the origin position sensor 143 are fixed to the frame 110, and the marker 144 is fixed to the mount 1313. As an example, the origin position sensor 143, the first position sensor 141, and the second position sensor 142 are disposed at intervals in the second direction on the traverse driving mechanism 1311, wherein the second position sensor 142 is disposed on the side of the first position sensor 141 close to the tab 300.

In other embodiments, the origin position sensor 143, the first position sensor 141, and the second position sensor 142 may be disposed on the frame 110 at intervals along the second direction.

Referring to fig. 9 and 10, the marker 144 includes a first end 1441 and a second end 1442, the first end 1441 is mounted to the mounting block 1313, and the second end 1442 is configured to cooperate with the first position sensor 141, the second position sensor 142, and the origin position sensor 143. Wherein the position of the marker 144 is fixed relative to the position of the mounting block 1313.

In some embodiments of the present application, the marking element 144 is made of stainless steel, which not only has high strength and corrosion resistance, but also has good induction effect; in other embodiments, the marking member 144 may be made of other metal materials such as aluminum alloy.

It is to be understood that the home position sensor 143, the first position sensor 141, and the second position sensor 142 correspond to one position of the mounting table 1313, respectively. The origin position sensor 143 corresponds to the origin position; the first position sensor 141 corresponds to a first position, also referred to as a "near point position"; the second position sensor 142 corresponds to a second position, also referred to as an "over travel position". When the traverse driving mechanism 1311 drives the mount 1313 to approach the tab 300 in the second direction, the second end 1442 passes through the origin position sensor 143, the first position sensor 141, and the second position sensor 142 in this order.

In some embodiments of the present application, the origin position sensor 143, the first position sensor 141, and the second position sensor 142 are all groove type photosensors.

Taking the matching form of the marking piece 144 and the first position sensor 141 as an example, the first position sensor 141 is provided with a groove 1411, when the marking piece 144 passes through the first position sensor 141, the second end 1442 slides across the groove 1411, the first position sensor 141 judges that the mounting table 1313 reaches the first position, and sends a first position signal to an external controller; the transverse moving driving mechanism 1311 responds to the first position signal and drives the mounting table 1313 to approach the tab 300 in the second direction, and the oblique driving mechanism 1312 responds to the first position signal and drives the second limiting block 132 to extend.

Based on the same principle, when the second position sensor 142 determines that the mounting table 1313 has reached the second position, the second position sensor 142 transmits a second position signal to an external controller, and the second driving mechanism 131 can stop operating in response to the second position signal.

In some embodiments of the present application, the traverse driving mechanism 1311 and the diagonal driving mechanism 1312 are simultaneously moved close to the tab 300; in other embodiments, as a response form of the second driving mechanism 131 to the first position, the oblique driving mechanism 1312 drives the second stopper 132 to extend obliquely first, and the transverse moving driving mechanism 1311 drives the mounting block 1313 to approach the tab 300 along the second direction until the clamping angle 1321 of the second stopper 132 abuts against the front end 360 of the tab 300.

Referring to fig. 9 and 10, the second position detecting mechanism 150 is used to detect that the battery cell 200 reaches the preset position 1111 and send a corresponding position signal to an external controller, which is a specific form of the second position detecting mechanism 150 described below.

The second position detection mechanism 150 includes two pairs of optical fiber correlation sensors arranged in a cross, namely a first optical fiber correlation sensor 151 and a second optical fiber correlation sensor 152.

The first optical fiber correlation sensor 151 includes a first emitting end 1511 and a first detecting end 1512 that are disposed opposite to each other, the first emitting end 1511 is disposed on the mounting block 1313, the first detecting end 1512 is mounted on the cell placement platform 111, and the first emitting end 1511 and the first detecting end 1512 are disposed on two sides of the cell 200 along the second direction.

It is easy to understand that when the oblique driving mechanism 1312 does not extend out and the battery cell 200 is not loaded to the preset position 1111, the laser emitted from the first emitting end 1511 can smoothly reach the first detecting end 1512. The transverse driving mechanism 1311 and the oblique driving mechanism 1312 are used for jointly driving the second limiting block 132 to be close to the front end 360 of the tab 300, so that the laser path of the first optical fiber correlation sensor 151 can be kept smooth before the battery cell 200 reaches the preset position 1111, and the second position detection mechanism 150 can be guaranteed to normally operate.

Preferably, the number of the first optical fiber correlation sensors 151 is plural, and the plural first optical fiber correlation sensors 151 are arranged at intervals in the third direction to detect the position of the battery cell 200 more comprehensively.

The second optical fiber correlation sensor 152 includes a second emission end 1521 and a second detection end 1522 that are disposed oppositely, and the second emission end 1521 and the second detection end 1522 are both installed on the cell placement platform 111 and are disposed on both sides of the cell 200 along the third direction.

Referring to fig. 9, in some embodiments of the present application, the third direction is perpendicular to the second direction.

When the battery cell 200 reaches the preset position 1111, the battery cell 200 blocks the correlation laser of the first optical fiber correlation sensor 151 and the second optical fiber correlation sensor 152, at this time, the first detection end 1512 sends a first in-place signal to an external controller, and the second detection end 1522 sends a second in-place signal to the external controller. When the external controller receives the first in-place signal and the second in-place signal at the same time, it is determined that the battery cell 200 reaches the preset position 1111. The first drive mechanism 121 and the second drive mechanism 131 respond to the in-position signal indicating that the battery cell 200 reaches the preset position 1111 and start to operate. In the description of the present application, the "in-place signal" is that the first in-place signal and the second in-place signal are simultaneously transmitted to the external controller.

The working principle of the tab compression limiting device 100 is as follows.

Initial position: the first driving mechanism 121 is not extended, the marker 144 of the traverse driving mechanism 1311 is located at the origin position, and the diagonal driving mechanism 1312 is not extended.

The grabbing device 400 loads the battery cell 200 to a preset position 1111;

the first optical fiber correlation sensor 151 detects that the battery cell 200 is in position in the second direction, and sends a first in-position signal to an external controller;

the second optical fiber correlation sensor 152 detects that the battery cell 200 is in place in the third direction, and sends a second in-place signal to an external controller;

the external controller receives the in-place signal from the second position detection mechanism 150, and determines that the battery cell 200 reaches the preset position 1111;

the first driving mechanism 121 responds to the in-place signal, drives the first limiting block 122 to be pushed out from the initial position, approaches the tab 300 to the root 350 of the tab 300 along the first direction, and enables the first limiting surface 1223 to press the first surface 330, namely, the first bending part 310 of the tab 300 is prevented from loosening and rebounding;

the transverse moving driving mechanism 1311 responds to the in-place signal and drives the mounting table 1313 to approach the lug 300 along the second direction;

when the first position sensor 141 detects that the marker 144 passes the first position, it transmits a first position signal to an external controller;

the oblique driving mechanism 1312 responds to the first position signal and drives the second limiting block 132 to extend obliquely;

when the second position sensor 142 detects that the flag 144 passes the second position, it sends a second position signal to the external controller;

the traverse driving mechanism 1311 and the oblique driving mechanism 1312 stop operating in response to the second position signal, and at this time, the engaging angle 1321 of the second stopper 132 abuts against the front end 360 of the tab 300, so that the second stopper surface 1322 presses the second surface 340 to abut against the second stopper surface 1322, that is, the second bent portion 320 of the tab 300 is prevented from being loosened and rebounded.

Further:

the first limiting block 122 and the second limiting block 132 continuously compress the tab 300 for a first preset time, and an external controller times and sends a blanking signal;

the first driving mechanism 121 responds to the blanking signal, drives the first limiting block 122 to move away from the tab 300 along the first direction, and returns to the initial position;

the oblique driving mechanism 1312 responds to the blanking signal and drives the second limiting block 132 to obliquely return;

the transverse moving driving mechanism 1311 responds to the blanking signal and drives the mounting table 1313 to move towards the original position;

when the origin position sensor 143 detects that the marker 144 reaches the origin position, it sends a reset signal to an external controller;

the traverse driving mechanism 1311 stops the operation in response to a reset signal;

the grasping apparatus 400 removes the battery cell 200 from the preset position 1111;

the first limiting mechanism 120 and the second limiting mechanism 130 both return to the initial positions to be pressed and limited to the tab 300 of the next battery cell 200 which is loaded to the preset position 1111.

The tab compression limiting device 100 of the embodiment of the application is arranged behind a welding station and before entering a shell station, the tab 300 of the battery cell 200 can be compressed and limited before entering the shell, and the first bending part 310 and the second bending part 320 of the tab 300 are prevented from being loosened and rebounded. As can be easily understood, this can ensure that the deviation-correcting positioning step is smoothly performed when the battery cell 200 is inserted into the housing, so that the battery cell is smoothly inserted into the housing.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pole lug pressing limiting device is characterized by comprising a rack, a first limiting mechanism and a second limiting mechanism, wherein the first limiting mechanism and the second limiting mechanism are both arranged on the rack;

the first limiting mechanism is used for preventing the first bending part of the tab from loosening and rebounding;

and the second limiting mechanism is used for preventing the second bending part of the tab from loosening and rebounding.

2. The tab compressing and limiting device as claimed in claim 1, wherein the first limiting mechanism comprises a first driving mechanism and a first limiting block, the first driving mechanism is mounted on the frame and can drive the first limiting block to approach or depart from the first bending portion of the tab along a first direction.

3. The tab compressing and limiting device as claimed in claim 2, wherein the first limiting block comprises a first limiting block body and a limiting assembly, the first limiting block body is mounted at the movable end of the first driving mechanism, and the limiting assembly is mounted at the first limiting block body and used for being abutted against the root of the tab.

4. The tab compression limiting device according to claim 2, wherein the frame further includes a cell placement platform for placing a cell, and the first driving mechanism is mounted on the cell placement platform.

5. The tab compression limiting device according to claim 1, further comprising a second position detection mechanism, wherein the second position detection mechanism is configured to send an in-place signal when detecting that the battery cell reaches a preset position on the rack, and the first limiting mechanism responds to the in-place signal and starts to operate.

6. The tab compressing and limiting device as claimed in claim 1, wherein the second limiting mechanism comprises a second driving mechanism and a second limiting block, and the second driving mechanism is mounted on the frame and can drive the second limiting block to approach or depart from the front end of the tab.

7. The tab compression limiting device according to claim 6, wherein the second limiting block is provided with a clamping angle, and the clamping angle is used for abutting against the front end of the tab.

8. The tab compression limiting device as claimed in claim 6, wherein the second driving mechanism comprises a traverse driving mechanism, an oblique driving mechanism and a mounting table;

the transverse moving driving mechanism is arranged on the rack and can drive the mounting table to approach or depart from the lug along a second direction;

the mounting table is provided with the oblique driving mechanism;

the oblique driving mechanism can drive the second limiting block to extend out obliquely relative to the mounting table so as to be close to the front end of the lug.

9. The tab compression limiting device of claim 8 further comprising a first position sensing mechanism for sending a first position signal when the mounting table is moved to a first position;

the oblique driving mechanism is used for responding to the first position signal and driving the second limiting block to extend out.

10. The tab compression limiting device according to claim 1, further comprising a second position detection mechanism, wherein the second position detection mechanism is configured to send an in-place signal when detecting that the battery cell reaches a preset position on the rack, and the second limiting mechanism responds to the in-place signal and starts to operate.