CN217881625U

CN217881625U - Stacking mechanism for stacking multiple battery cells at one time

Info

Publication number: CN217881625U
Application number: CN202221830753.1U
Authority: CN
Inventors: 韩旭东; 刘仕兴
Original assignee: Shenzhen Zhongtianhe Automation Equipment Co ltd
Current assignee: Shenzhen Zhongtianhe Automation Equipment Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-22
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a once fold lamination mechanism of a plurality of electric cores relates to lithium cell production technical field, including first link and two second links, first link one side fixed mounting has two first linear guide, the utility model discloses a staff launches two and compresses tightly the subassembly, makes two compress tightly subassembly synchronous movement and compress tightly and fold the diaphragm of bench, prevents that diaphragm unreels the machine when removing and unreeling, folds the diaphragm of bench and produces the skew, and the staff starts diaphragm unreeling machine and removes it after that for the diaphragm is folding, and staff controls two and compress tightly the subassembly after that, makes it break away from with the diaphragm simultaneously, benefits from the two-way motion uniformity of two-way ball screw and goes up and down by two sets of pressure claws of same second motor drive symmetry, makes the synchronism and the precision of pressing the claw when going up and down and removing higher, and simple structure, has promoted this lamination device's work efficiency, has reduced manufacturing cost.

Description

Stacking mechanism for stacking multiple battery cores at one time

Technical Field

The utility model relates to a lithium cell production technical field particularly, relates to a once fold lamination mechanism of a plurality of electric cores.

Background

The battery core of the lithium ion battery is generally of a laminated type, namely, the battery core is formed by laminating a positive plate, a diaphragm and a negative plate in a Z-shaped manner, when lamination is carried out, the positive plate and the negative plate processed in a die-cutting machine are alternately transferred to a positive lamination station and a negative lamination station through a mechanical arm, the diaphragm is arranged between the positive lamination station and the negative lamination station, the end head of the diaphragm is pressed on a lamination table in a lamination mechanism, and finally the positive plate and the negative plate are separated in a Z-shaped manner through the diaphragm until lamination of the whole battery core is completed, for example, the multi-station lamination device and the multi-station lamination method provided by the patent with the application number of CN201910625078.5 comprise a two-pair pressing lifting mechanism, a two-pair pressing translation mechanism, a lamination table lifting mechanism, an auxiliary lifting mechanism, a lamination table, a two-pair pressing assembly and a diaphragm correcting mechanism; each pair of pressing lifting mechanisms comprises a servo motor, an eccentric wheel and a transmission part, and the eccentric wheel is driven by the servo motor to act so as to control the two pairs of pressing components to move up and down; each pair of pressing translation mechanisms comprises a linear motor and a pressing component connecting part and controls each pair of pressing components to move towards each other to be close to the lamination table or move away from the lamination table in an opposite mode; each material pressing assembly comprises a pressing knife connecting rod and a pressing knife, and the pole pieces are pressed tightly through the pressing knife of the material pressing assembly during lamination. According to the invention, the plurality of pole pieces are placed on the lamination table to simultaneously carry out multi-station lamination operation, the plurality of pole pieces are compressed by the plurality of pairs of pressing assemblies, each pressing assembly comprises a plurality of pressing knives, and one pair of pressing knives is arranged on the same side of each pole piece during lamination, so that the pole pieces are prevented from moving during lamination of the Z-shaped diaphragm, and the precision and the efficiency of lamination of the plurality of pole pieces are ensured.

However, the multi-station lamination device has the following defects in use: when the multi-station lamination device is used, the compression lifting mechanisms in the multi-station lamination device drive the corresponding eccentric wheel mechanisms to lift by using the independent servo motors, the motion precision of the eccentric wheel mechanisms mainly depends on the machining precision and the assembling precision of the cams, more parts are needed for forming the eccentric wheel mechanisms, the structure is complex, two groups of pressing knives which are symmetrical front and back are not synchronous in pressing, the manufacturing cost of the lamination device is increased, the mechanism is influenced by the machining error and the assembling error of the cams, the noise is high in the operation process, meanwhile, the pressing knives in the multi-station lamination device are driven by the independent linear motors to move, so that the two groups of symmetrical pressing knives are difficult to move synchronously, after one group of pressing knives is in place, the other group of pressing knives is still in the moving state, and the working efficiency of the lamination device is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a once fold lamination mechanism of a plurality of electric cores, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stacking mechanism for stacking a plurality of battery cells at one time comprises a first connecting frame and two second connecting frames, wherein two first linear guide rails are fixedly mounted on one side of the first connecting frame, a lifting plate is arranged on one side of each of the rail bodies of the two first linear guide rails in a sliding mode, a first motor is fixedly mounted on the lower surface of the first connecting frame, the output shaft end of the first motor penetrates through the first connecting frame and is fixedly provided with a first lead screw, the lifting plate is arranged on one side of the rod body of the first lead screw through a first thread sleeve thread, and a stacking platform is fixedly mounted on the upper surface of the lifting plate;

and two compressing assemblies used for compressing the diaphragm on the stacking table are arranged on one sides of the second connecting frames away from each other.

Preferably, the pressing assembly comprises two second linear guide rails, the two second linear guide rails are fixedly installed on one sides of the corresponding second connecting frames, and a moving seat is arranged on one sides of rail bodies of the two second linear guide rails in a sliding mode;

a second motor is fixedly arranged on one side of the second connecting frame, a second lead screw is fixedly arranged on an output shaft end of the second motor, and the moving seat is arranged on one side of a second lead screw rod body through a second thread sleeve;

the bidirectional ball screw is characterized in that two supporting blocks are fixedly mounted on one side of the movable seat, a bidirectional ball screw is rotatably mounted between the two supporting blocks, a speed reducer is arranged on one side, away from the bidirectional ball screw, of one supporting block, one end of the bidirectional ball screw penetrates through the corresponding supporting block and is connected with the output end of the speed reducer, the input end of the speed reducer is connected with the output shaft of a third motor, mounting frames are arranged on two sides of the bidirectional ball screw rod body in a threaded mode, and two pressing claws are arranged on one side, opposite to the mounting frames, of the mounting frames.

Preferably, two the equal fixed mounting in one side that the second link keeps away from each other has a third linear guide, and every two adjacent the mounting bracket slides respectively and sets up in third linear guide rail body one side that corresponds.

Preferably, two buffer cylinders are arranged on one side, close to the stacking table, of each mounting frame, and the output ends of the buffer cylinders are fixedly connected with the corresponding pressing claws respectively.

Preferably, a plurality of mounting holes are formed in the surface of one side of each mounting frame in a penetrating mode, and two threaded holes are formed in the surface of each buffer cylinder in a penetrating mode.

Preferably, two connecting blocks are fixedly installed on one side of the lifting plate, a third screw rod is rotatably installed between the two connecting blocks, a fourth motor is fixedly installed on one side of the lifting plate, and one end of the third screw rod penetrates through the corresponding connecting block and is fixedly connected with the output end of the fourth motor;

two fourth linear guide rails are fixedly mounted on one side of the lifting plate, a fixing frame is arranged on one side of a rail body of each fourth linear guide rail in a sliding mode, the fixing frame is arranged on one side of a third screw rod body through a third thread sleeve, and a deviation rectifying suction plate is fixedly mounted on the upper surface of the fixing frame.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The staff is keeping flat the diaphragm on folding the bench with diaphragm unreeling machine after controlling the manipulator and place two electric core pole pieces on the diaphragm, launch two and compress tightly the subassembly afterwards, make two compress tightly subassembly synchronous motion and compress tightly the diaphragm that folds the bench, prevent that diaphragm unreels the machine when removing and unreeling, it produces the skew to fold the diaphragm on the bench, the staff starts diaphragm unreeling machine and removes it after that, make the diaphragm fold, benefit from two-way motion uniformity of two-way ball screw and two sets of pressure claws by same second motor drive symmetry and go up and down, make the synchronism and the precision of pressing the claw when going up and down with removing higher, and simple structure, the work efficiency of this lamination device has been promoted, manufacturing cost has been reduced.

Drawings

Fig. 1 is a schematic view of an overall structure of a stacking mechanism for stacking a plurality of battery cells at a time according to the present invention;

fig. 2 is a schematic top view of a stacking mechanism for stacking a plurality of battery cells at a time according to the present invention;

fig. 3 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional structure atbase:Sub>A-base:Sub>A in fig. 2 ofbase:Sub>A stacking mechanism for stackingbase:Sub>A plurality of battery cells atbase:Sub>A time according to the present invention;

fig. 4 is a schematic diagram of a section structure at B-B in fig. 2 of a lamination mechanism for stacking a plurality of battery cells at a time.

In the figure: 1. a first connecting frame; 101. a first linear guide rail; 102. a lifting plate; 103. a first motor; 104. a first lead screw; 105. a first threaded sleeve; 2. a second link frame; 3. stacking; 4. a compression assembly; 401. a second linear guide rail; 402. a movable seat; 403. a second motor; 404. a second lead screw; 405. a second threaded sleeve; 406. a support block; 407. a bidirectional ball screw; 408. a speed reducer; 409. a third motor; 4010. a mounting frame; 4011. pressing claws; 4012. a third linear guide rail; 5. a buffer cylinder; 6. mounting holes; 601. a threaded hole; 7. connecting blocks; 701. a third screw rod; 702. a fourth motor; 703. a fourth linear guide; 704. a fixed mount; 705. a third thread bush; 706. and (5) correcting the deviation and absorbing the board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1, 2, and 4, a stacking mechanism for stacking a plurality of battery cells at a time includes a first connecting frame 1 and two second connecting frames 2, two first linear guide rails 101 are fixedly mounted on one side of the first connecting frame 1, a lifting plate 102 is slidably disposed on one side of a rail body of the two first linear guide rails 101, a first motor 103 is fixedly mounted on a lower surface of the first connecting frame 1, an output shaft end of the first motor 103 penetrates through the first connecting frame 1 and is fixedly mounted with a first lead screw 104, the lifting plate 102 is disposed on one side of a shaft body of the first lead screw 104 through a first thread sleeve 105, and a stacking table 3 is fixedly mounted on an upper surface of the lifting plate 102.

Two second link frames 2 keep away from one side each other and all install the subassembly 4 that compresses tightly that is used for carrying out the diaphragm that compresses tightly on folding platform 3. The diaphragm is flatly placed on the stacking table 3 by a worker through the diaphragm unreeling machine, then the manipulator is controlled to place two battery cell pole pieces on the diaphragm, the compressing assembly 4 is started, the compressing assembly 4 is enabled to position the diaphragm on the stacking table 3, the diaphragm on the stacking table 3 is prevented from deviating when the diaphragm unreeling machine moves and unreels, then the worker starts the diaphragm unreeling machine and moves the diaphragm, the diaphragm is folded, the worker controls the compressing assembly 4 to be separated from the diaphragm, then the worker starts the first motor 103, an output shaft of the first motor drives the first lead screw 104 to rotate, the first lead screw 104 rotates to enable the lifting plate 102 to drive the stacking table 3 to move downwards along the first linear guide rail 101 in a threaded precession mode, the folded diaphragm and the compressing assembly 4 still keep a proper distance, then the worker controls the manipulator to place a new battery cell pole piece on the folded diaphragm again, lamination work is repeated until a battery cell meeting requirements is produced, the synchronism and the precision of the compressing assembly 4 during lifting and moving are high, the structure is simple, the working efficiency of the lamination device is improved, and the manufacturing cost is reduced.

As shown in fig. 1, 2, and 3, in this embodiment, the pressing assembly 4 includes two second linear guide rails 401, the two second linear guide rails 401 are both fixedly mounted on one side of the corresponding second connecting frame 2, and a moving seat 402 is disposed on one side of the rail bodies of the two second linear guide rails 401 in a sliding manner.

A second motor 403 is fixedly arranged at one side of the second connecting frame 2, a second screw rod 404 is fixedly arranged at an output shaft end of the second motor 403, and the movable seat 402 is arranged at one side of a rod body of the second screw rod 404 through a second thread sleeve 405 in a threaded manner.

Remove seat 402 one side fixed mounting and have two supporting shoes 406, rotate between two supporting shoes 406 and install two-way ball screw 407, one of them supporting shoe 406 is kept away from two-way ball screw 407 one side and is provided with reduction gear 408, two-way ball screw 407 one end is passed and is corresponded supporting shoe 406 and be connected with reduction gear 408 output, reduction gear 408 input and third motor 409 output shaft are connected, two-way ball screw 407 pole body both sides all the screw thread be provided with mounting bracket 4010, two relative one sides of mounting bracket 4010 all are provided with two pressure claws 4011. Through setting up reduction gear 408, avoid pressing claw 4011 to remove too fast, the staff of being convenient for controls the position of pressing claw 4011. The two pressing claws 4011 arranged on one side of the same mounting rack 4010 form a group of pressing claws 4011.

Two second link 2 keep away from each other equal fixed mounting in one side has third linear guide 4012, and per two adjacent mounting brackets 4010 slide respectively and set up in third linear guide 4012 rail body one side that corresponds. When the staff is folding the diaphragm in needs, start third motor 409, make its output drive two-way ball screw 407 and rotate, two-way ball screw 407 of pivoted drives through the mode of screw precession and presses claw 4011 to remove along third linear guide 4012, make and press claw 4011 to remove to the diaphragm top, then start second motor 403, make its output shaft drive second lead screw 404 and rotate, pivoted second lead screw 404 drives second thread bush 405 and removes seat 402 and remove along the direction of second linear guide 401 through the mode of screw precession, make and press claw 4011 to compress tightly the location to the diaphragm. When the worker needs to place the pole piece, the second motor 403 is started reversely, the pressing claw 4011 is separated from the diaphragm, then the third motor 409 is started reversely, the pressing claw 4011 moves towards the direction far away from the diaphragm, and the pressing claw 4011 is prevented from colliding with the manipulator and the pole piece. Benefiting from the two-way motion consistency of the two-way ball screw 407 and the lifting of the two symmetrical groups of pressing claws 4011 driven by the same second motor 403, the synchronism and the precision of the pressing claws 4011 during lifting and moving are higher, the structure is simple, the working efficiency of the laminating device is improved, and the manufacturing cost is reduced.

As shown in fig. 3, it can be understood that, in the present application, two buffer cylinders 5 are disposed on one side of each mounting frame 4010 close to the stacking table 3, and output ends of each buffer cylinder 5 are respectively and fixedly connected to corresponding pressing claws 4011. Through setting up buffer cylinder 5, provide a buffering when pressing claw 4011 to push down the diaphragm, avoid pressing claw 4011 to push down to strike too big diaphragm damage that causes.

A plurality of mounting holes 6 are formed in one side surface of each mounting frame 4010 in a penetrating mode, and two threaded holes 601 are formed in the surface of each buffer cylinder 5 in a penetrating mode. Through setting up mounting hole 6 on mounting bracket 4010 surface, set up screw hole 601 on buffer cylinder 5 surface for buffer cylinder 5 can be fixed mutually with mounting bracket 4010 through fastening bolt, makes things convenient for the staff to carry out quick assembly disassembly to buffer cylinder 5, on the one hand, does benefit to the staff and changes it, and on the other hand makes things convenient for the staff to adjust the position of pressing claw 4011 according to the size of diaphragm and electric core pole piece.

As shown in fig. 1, 3, and 4, two connection blocks 7 are fixedly mounted on one side of the lifting plate 102, a third screw 701 is rotatably mounted between the two connection blocks 7, a fourth motor 702 is fixedly mounted on one side of the lifting plate 102, and one end of the third screw 701 passes through the corresponding connection block 7 and is fixedly connected to an output end of the fourth motor 702.

Two fourth linear guide rails 703 are fixedly mounted on one side of the lifting plate 102, a fixing frame 704 is arranged on one side of the rail bodies of the two fourth linear guide rails 703 in a sliding mode, the fixing frame 704 is arranged on one side of the rod body of the third screw rod 701 through a third thread sleeve 705 in a threaded mode, and a deviation rectifying suction plate 706 is fixedly mounted on the upper surface of the fixing frame 704. The staff makes its output drive third lead screw 701 to rotate through starting fourth motor 702, and the mode that the pivoted third lead screw 701 is screwed in through the screw drives mount 704 and suction plate 706 of rectifying and moves along fourth linear guide 703 direction to make the suction plate 706 of rectifying and rectifying to rectify the diaphragm that the skew can be carried out to the diaphragm, prevent that the diaphragm from keeping flat and producing the skew when folding the platform 3.

The working principle of the lamination mechanism for stacking a plurality of electric cores at a time is as follows:

when the device is used, a worker flatly places the diaphragm on the stacking table 3 by using the diaphragm unreeling machine and then controls the manipulator to place the two battery cell pole pieces on the diaphragm, then the third motor 409 is started, the output end of the third motor drives the bidirectional ball screw 407 to rotate, the rotating bidirectional ball screw 407 drives the pressing claw 4011 to move along the third linear guide rail 4012 in a screw precession mode, so that the pressing claw 4011 moves above the diaphragm, then the second motor 403 is started, the output shaft of the second motor drives the second screw 404 to rotate, the rotating second screw 404 drives the second thread sleeve 405 and the moving seat 402 to move along the second linear guide rail 401 in the screw precession mode, so that the pressing claw 4011 compresses and positions the diaphragm, and the diaphragm on the stacking table 3 is prevented from deviating when the diaphragm unreeling machine moves and unreels the diaphragm, then, the worker starts the membrane unreeling machine and moves the membrane unreeling machine to fold the membrane, then, the worker reversely starts the second motor 403, the pressing claw 4011 is separated from the membrane, then, the third motor 409 is reversely started, the pressing claw 4011 moves towards the direction far away from the membrane, collision between the pressing claw 4011 and the manipulator and the pole piece is avoided, then, the worker starts the first motor 103, the output shaft of the first motor drives the first lead screw 104 to rotate, the lifting plate 102 drives the folding table 3 to move downwards along the first linear guide rail 101 in a threaded screwing mode through the rotating first lead screw 104, the folded membrane and the pressing assembly 4 still keep a proper distance, then, the worker controls the manipulator to place a new battery cell pole piece on the folded membrane again, and lamination work is repeated until a battery cell meeting requirements is produced.

The above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and for those skilled in the art, other variations or changes in different forms can be made on the basis of the above descriptions, and all embodiments cannot be exhausted here, and all the obvious variations or changes are still in the scope of the present invention.

Claims

1. The utility model provides a once fold lamination mechanism of a plurality of electricity cores, includes first link (1) and two second links (2), its characterized in that: two first linear guide rails (101) are fixedly mounted on one side of the first connecting frame (1), a lifting plate (102) is arranged on one side of the rail bodies of the two first linear guide rails (101) in a sliding mode, a first motor (103) is fixedly mounted on the lower surface of the first connecting frame (1), the output shaft end of the first motor (103) penetrates through the first connecting frame (1) and is fixedly provided with a first lead screw (104), the lifting plate (102) is arranged on one side of the rod body of the first lead screw (104) through a first thread sleeve (105) in a threaded mode, and a stacking table (3) is fixedly mounted on the upper surface of the lifting plate (102);

two the diaphragm that is used for on the folding platform (3) compresses tightly subassembly (4) is all installed to one side of keeping away from each other in second link (2).

2. The lamination mechanism for stacking a plurality of battery cells at a time according to claim 1, wherein: the pressing assembly (4) comprises two second linear guide rails (401), the two second linear guide rails (401) are fixedly installed on one sides of the corresponding second connecting frames (2), and a moving seat (402) is arranged on one sides of rail bodies of the two second linear guide rails (401) in a sliding mode;

a second motor (403) is fixedly mounted on one side of the second connecting frame (2), a second screw rod (404) is fixedly mounted on an output shaft end of the second motor (403), and the moving seat (402) is arranged on one side of a rod body of the second screw rod (404) through a second thread sleeve (405) in a threaded manner;

remove seat (402) one side fixed mounting have two supporting shoes (406), two rotate between supporting shoe (406) and install two-way ball screw (407), one of them supporting shoe (406) is kept away from two-way ball screw (407) one side and is provided with reduction gear (408), two-way ball screw (407) one end is passed and is corresponded supporting shoe (406) and be connected with reduction gear (408) output, reduction gear (408) input and third motor (409) output shaft are connected, two-way ball screw (407) pole body both sides equal screw thread is provided with mounting bracket (4010), two the relative one side of mounting bracket (4010) all is provided with two pressure claw (4011).

3. The lamination mechanism for stacking a plurality of battery cells at a time according to claim 2, wherein: two keep away from each other in second link (2) one side equal fixed mounting has third linear guide (4012), every two is adjacent mounting bracket (4010) slides respectively and sets up in third linear guide (4012) rail body one side that corresponds.

4. The lamination mechanism for stacking a plurality of battery cells at a time according to claim 2, wherein: every mounting bracket (4010) are close to and all are provided with two buffer cylinder (5), every buffer cylinder (5) output respectively with the pressure claw (4011) fixed connection that corresponds.

5. The lamination mechanism for stacking a plurality of battery cells at a time according to claim 4, wherein: every mounting bracket (4010) side surface all runs through and has seted up a plurality of mounting holes (6), every two screw holes (601) have all run through to cushion cylinder (5) surface.

6. The lamination mechanism for stacking a plurality of battery cells at a time according to claim 4, wherein: two connecting blocks (7) are fixedly mounted on one side of the lifting plate (102), a third screw rod (701) is rotatably mounted between the two connecting blocks (7), a fourth motor (702) is fixedly mounted on one side of the lifting plate (102), and one end of the third screw rod (701) penetrates through the corresponding connecting block (7) and is fixedly connected with the output end of the fourth motor (702);

two fourth linear guide rails (703) are fixedly mounted on one side of the lifting plate (102), a fixing frame (704) is arranged on one side of a rail body of the fourth linear guide rails (703) in a sliding mode, the fixing frame (704) is arranged on one side of a rod body of a third screw rod (701) through threads of a third thread sleeve (705), and a deviation rectifying suction plate (706) is fixedly mounted on the upper surface of the fixing frame (704).