CN211135123U - Pole piece punching forming machine and laser pole lug cutting equipment - Google Patents

Abstract

The utility model provides a die-cut make-up machine of pole piece and laser utmost point ear equipment of cutting, relate to lithium ion battery and make technical field, this die-cut make-up machine of pole piece is including bearing the base, linear drive spare, die-cut frame, die-cut drive assembly and die-cut subassembly, die-cut frame activity sets up on bearing the base and is connected with the linear drive spare transmission, be used for making linear motion and with pole piece synchronous motion under the drive of linear drive spare, die-cut drive assembly sets up in die-cut frame, die-cut subassembly sets up in die-cut frame and is connected with die-cut drive assembly transmission, and die-cut subassembly has the die-cut double-layered groove that supplies the pole piece to pass, be used for following. Compared with the prior art, the utility model provides a pair of die-cut make-up machine of pole piece can realize die-cut action under the condition of pole piece not stop motion, has improved die-cut speed to die-cut efficiency has been improved by a wide margin.

Description

Pole piece punching forming machine and laser pole lug cutting equipment

Technical Field

The utility model relates to a lithium ion battery makes technical field, particularly, relates to a die-cut make-up machine of pole piece and utmost point ear equipment is cut to laser.

Background

The battery is manufactured in two modes of winding and surface mounting in the lithium battery industry, the lamination technology has the advantages of high energy density, high space utilization rate and the like, the lamination technology is more and more favored by people, the flow of punching the V angle in the lamination technology is inevitable, the V angle is generally punched by a die at present, the die and a pole piece are kept in a relatively static state when the V angle is punched, and the next V angle is punched after the pole piece moves to a fixed length after the V angle is punched, so that the pole piece moves continuously and discontinuously. The efficiency of punching V-corners is very low due to the intermittent motion.

In view of this, it is very important to design and manufacture a pole piece punching forming machine capable of continuously cutting a pole piece and continuously cutting the pole piece so as to improve the V-angle cutting speed and greatly improve the V-angle punching efficiency of the pole piece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die-cut make-up machine of pole piece, it can make the incessant cutting of pole piece, has improved and has cut V angular velocity to die-cut V angle efficiency has been promoted by a wide margin.

Another object of the utility model is to provide a laser cuts utmost point ear equipment, its cutting and die-cut efficient.

The utility model is realized by adopting the following technical scheme.

In one aspect, the utility model provides a die-cut make-up machine of pole piece, including bearing base, linear drive spare, die-cut frame, die-cut drive assembly and die-cut subassembly, the activity of die-cut frame sets up bear on the base and with the linear drive spare transmission is connected, be used for linear drive spare's drive down make linear motion and with pole piece synchronous motion, die-cut drive assembly sets up in the die-cut frame, die-cut subassembly sets up in the die-cut frame and with die-cut drive assembly transmission is connected, just die-cut subassembly has the confession the die-cut double-layered groove that the pole piece passed is used for following linear motion and die-cut are made to the die-cut frame the pole piece.

Further, die-cut subassembly is including the first die-cut mould and the die-cut mould of second of relative setting, first die-cut mould with be formed with between the die-cut mould of second die-cut double-layered groove, the die-cut mould of second is fixed to be set up in the die-cut frame, first die-cut mould with die-cut drive assembly transmission is connected, and be close to or keep away from under die-cut drive assembly's the drive the die-cut mould of second.

Further, first die-cut mould includes first die holder and sets up terrace die on the first die holder, the die-cut mould of second includes the second die holder and sets up the die on the second die holder, first die holder with die-cut drive assembly transmission is connected, the second die holder is fixed to be set up in the die-cut frame, the terrace die with the die sets up relatively and forms die-cut double-layered groove.

Further, die-cut drive assembly includes die-cut driving piece, cam mechanism and mounting bracket, the mounting bracket sets up the top of die-cut frame, die-cut driving piece sets up one side of mounting bracket, cam mechanism sets up the opposite side of mounting bracket, and with the transmission of die-cut driving piece is connected, first die-cut mould with the transmission of cam mechanism is connected.

Furthermore, a guide post is arranged on the second die holder, and the first die holder is arranged on the guide post in a sliding manner and can slide along the guide post under the driving of the punching driving assembly.

Furthermore, the cam mechanism comprises a cam disc, a driven swing arm and a transmission seat, the cam disc is rotatably arranged on the mounting frame and is in transmission connection with the punching driving piece, a first rotating shaft is eccentrically arranged on the cam disc, the transmission seat is fixedly arranged on the first punching die, one end of the driven swing arm is rotatably connected with the first rotating shaft, and the other end of the driven swing arm is rotatably connected with the transmission seat.

Furthermore, the driven swing arm comprises a swing arm body, a first swing block and a second swing block, two ends of the swing arm body are respectively connected with the first swing block and the second swing block, the first swing block is provided with a first bearing, the first swing block is rotatably connected with the first rotating shaft through the first bearing, the second swing block is provided with a second bearing, the transmission seat is provided with the second rotating shaft, and the second swing block is rotatably connected with the second rotating shaft through the second bearing.

Further, die-cut driving piece includes motor and reduction gear, the motor with the reduction gear transmission is connected, the reduction gear sets up on the mounting bracket and with cam mechanism transmission is connected.

Furthermore, a sliding rod is arranged on the bearing base, the punching machine frame is arranged on the sliding rod in a sliding mode and driven by the linear driving piece to do linear reciprocating motion along the sliding rod, and the arrangement direction of the sliding rod is the same as the movement direction of the pole piece.

Further, the linear driving piece comprises a linear motor and a transmission belt, the linear motor is in transmission connection with the transmission belt, and the transmission belt is in transmission connection with the punching rack and used for driving the punching rack to slide along the sliding rod.

On the other hand, the utility model provides a utmost point ear equipment is cut to laser, including laser cutting utmost point ear device and the die-cut make-up machine of at least one pole piece, the die-cut make-up machine of pole piece is including bearing base, linear drive spare, die-cut frame, die-cut drive assembly and die-cut subassembly, the activity of die-cut frame sets up on bearing base and with the linear drive spare transmission is connected, be used for linear motion and with pole piece synchronous motion are made under linear drive spare's the drive, die-cut drive assembly sets up in the die-cut frame, die-cut subassembly sets up in the die-cut frame and with the transmission of die-cut drive assembly is connected, just die-cut subassembly has the confession the die-cut double-layered groove that the pole piece passed is used for following linear motion. The laser tab cutting device is arranged on the discharge side of the punching clamping groove and used for cutting the punched pole piece.

The utility model discloses following beneficial effect has:

the utility model provides a pair of die-cut make-up machine of pole piece, die-cut frame activity sets up on bearing the base, and be connected with the transmission of linear drive spare, die-cut subassembly sets up in die-cut frame simultaneously, the die-cut frame is made linear motion under the drive of linear drive spare, and can with pole piece synchronous motion, die-cut subassembly is followed die-cut frame and is made linear motion and die-cut pole piece this moment, because die-cut subassembly can keep synchronous motion promptly with the pole piece equally, can realize the die-cut effect of die-cut subassembly, the pole piece is in the continuous motion state this moment, linear drive spare drives die-cut frame after die-cut completion and replies and carries out next round synchronous motion. Compared with the prior art, the utility model provides a pair of die-cut make-up machine of pole piece can realize die-cut action under the condition of pole piece not stop motion, has improved die-cut speed to die-cut efficiency has been improved by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a pole piece punching and forming machine according to a first embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural view of a pole piece punching and forming machine according to a second embodiment of the present invention;

fig. 3 is a schematic structural view of a pole piece punching and forming machine according to a third viewing angle provided by the first embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the pole piece punching and forming machine shown in FIG. 3;

FIG. 5 is a schematic view of a portion of the pole piece punching and forming machine of FIG. 2;

fig. 6 is a schematic structural view of a laser tab cutting device according to a second embodiment of the present invention.

Icon: 100-punching and forming machine of pole piece; 110-a load-bearing base; 111-a slide bar; 130-linear drive; 150-a punching frame; 170-die cutting drive assembly; 171-die cutting the driving member; 1711-motor; 1713-a reducer; 173-a cam mechanism; 175-a mounting rack; 177-a cam plate; 178-driven swing arm; 1781-swing arm body; 1783 — first swing block; 1785 — second swing block; 179-drive seat; 180-pole piece; 190-a die cutting assembly; 191-a first punching die; 1911-first die holder; 1913-male mold; 193-second blanking die; 1931-second die holder; 1933-a female mold; 195-punching a clamping groove; 197-guide post; 200-laser tab cutting equipment; 210-a laser tab cutting device; 220-an unwinding device; 230-a slitting device; 240-a brush assembly; a 250-V angle deviation correcting device; 260-cutting deviation rectifying device; 270-a drive device; 280-air knife dust removal device; 290-a take-up device.

Detailed Description

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

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As mentioned in the background art, the prior art means for punching V-angle generally performs punching on the pole piece intermittently, the pole piece needs to stop moving at the punching equipment, and the pole piece is transported again after the punching is completed, which undoubtedly makes the punching process tedious and the punching efficiency low. In addition, the pole piece is punched intermittently, so that the subsequent action of cutting the pole lug by laser is difficult to continue, and the efficiency of the whole production line is low. The utility model provides a can realize following after under the condition that the pole piece does not stop motion and cut the function, improve die-cut efficiency.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

First embodiment

With reference to fig. 1 and fig. 2, the present embodiment provides a pole piece punching and forming machine 100, which implements a following cutting function through a linear driving member 130, and can complete a punching operation without stopping a movement of a pole piece 180, thereby improving punching efficiency and facilitating a smooth operation of a subsequent tab laser cutting operation.

The pole piece die-cutting forming machine 100 provided by the embodiment comprises a bearing base 110, a linear driving member 130, a die-cutting frame 150, a die-cutting driving assembly 170 and a die-cutting assembly 190, wherein the die-cutting frame 150 is movably arranged on the bearing base 110 and is in transmission connection with the linear driving member 130, and is used for making linear motion under the driving of the linear driving member 130 and moving synchronously with a pole piece 180, the die-cutting driving assembly 170 is arranged on the die-cutting frame 150, the die-cutting assembly 190 is arranged on the die-cutting frame 150 and is in transmission connection with the die-cutting driving assembly 170, and the die-cutting assembly 190 is provided with a die-cutting clamping groove 195 for the pole piece 180 to pass through and is used for.

In this embodiment, the linear driving member 130 drives the punching frame 150 to move linearly, so that the punching assembly 190 can move linearly along with the punching frame 150 and punch the pole piece 180, and the punching assembly 190 and the pole piece 180 can also move synchronously, i.e. keep relatively static, so that the punching effect of the punching assembly 190 can be realized, and the pole piece 180 is in a continuous movement state at the moment, and does not need to be stopped to perform punching operation independently.

It should be noted that the punching operation mentioned in the present embodiment refers to an operation of punching a V-shaped corner, but other punching processes are also possible, and are not listed here. In this embodiment, the linear driving member 130 drives the punching frame 150 to perform linear reciprocating motion, the speed of the punching frame is consistent with that of the pole piece 180 when the punching frame moves along with the pole piece 180, and when the punching frame returns, the speed of the punching frame is much higher than that of the pole piece 180, so that the punching frame can return to the original position in a very short time to perform the next punching action, the driving speed of the linear driving member 130 is controlled by an external industrial personal computer, and the industrial personal computer can automatically match the driving speed of the linear driving member 130 according to the moving speed of the pole piece 180.

In this embodiment, a sliding rod 111 is disposed on the bearing base 110, the punching frame 150 is slidably disposed on the sliding rod 111 and linearly reciprocates along the sliding rod 111 under the driving of the linear driving element 130, and the direction of the sliding rod 111 is the same as the moving direction of the pole piece 180.

In this embodiment, the linear driving member 130 includes a linear motor 1711 and a transmission belt, the linear motor 1711 is in transmission connection with the transmission belt, and the transmission belt is in transmission connection with the punching frame 150 for driving the punching frame 150 to slide along the sliding rod 111.

With combined reference to fig. 3 to 5, the punching assembly 190 includes a first punching die 191 and a second punching die 193 which are oppositely arranged, a punching clamping groove 195 is formed between the first punching die 191 and the second punching die 193, the second punching die 193 is fixedly arranged on the punching frame 150, and the first punching die 191 is in transmission connection with the punching driving assembly 170 and is driven by the punching driving assembly 170 to be close to or far away from the second punching die 193.

In this embodiment, the first punching die 191 includes a first die holder 1911 and a male die 1913 disposed on the first die holder 1911, the second punching die includes a second die holder 1931 and a female die 1933 disposed on the second die holder 1931, the first die holder 1911 is in transmission connection with the punching driving component 170, the second die holder 1931 is fixedly disposed on the punching frame 150, and the male die 1913 and the female die 1933 are disposed oppositely to form the punching clamp slot 195. Specifically, the male die 1913 is arranged at the bottom of the first die holder 1911, the female die 1933 is arranged at the top of the second die holder 1931, and during actual punching, the male die 1913 is driven by the punching driving assembly 170 to close the die towards the female die 1933, so as to perform a V-angle punching action on the pole piece 180 arranged between the female die 1933 and the male die 1913.

In this embodiment, the first die holder 1911 and the second die holder 1931 are both rectangular die holders, the first die holder 1911 moves up and down along the vertical direction, and the second die holder 1931 remains relatively stationary, i.e., the punching of the pole piece 180 can be achieved. In other preferred embodiments of the present invention, the second die holder 1931 can also be driven by the external driving device 270, so as to achieve the opposite movement with the first die holder 1911.

In this embodiment, the second die holder 1931 is further provided with a guide post 197 arranged in a vertical direction, and the first die holder 1911 is slidably arranged on the guide post 197 and slides up and down along the guide post 197.

The punching driving assembly 170 includes a punching driving member 171, a cam mechanism 173 and a mounting frame 175, the mounting frame 175 is disposed at the top of the punching frame 150, the punching driving member 171 is disposed at one side of the mounting frame 175, the cam mechanism 173 is disposed at the other side of the mounting frame 175 and is in transmission connection with the punching driving member 171, and the first punching die 191 is in transmission connection with the cam mechanism 173.

In this embodiment, the mounting frame 175 is detachably mounted on the top of the blanking frame 150, the blanking drive member 171 is disposed on the back side of the mounting frame 175, and the cam mechanism 173 is disposed on the front side of the mounting frame 175.

The cam mechanism 173 comprises a cam plate 177, a driven swing arm 178 and a transmission seat 179, the cam plate 177 is rotatably arranged on the mounting frame 175 and is in transmission connection with the punching driving member 171, a first rotating shaft is eccentrically arranged on the cam plate 177, the transmission seat 179 is fixedly arranged on the first punching die 191, one end of the driven swing arm 178 is rotatably connected with the first rotating shaft, and the other end of the driven swing arm 178 is rotatably connected with the transmission seat 179. Specifically, the transmission seat 179 is disposed on the top of the first die holder 1911, and a first rotating shaft is disposed at an edge position of the cam plate 177, and when the cam plate 177 rotates, the first rotating shaft rotates around the cam plate 177 and drives the driven swing arm 178 to swing, so that the first punching die 191 is driven by the transmission seat 179 to move in the up-and-down direction.

The driven swing arm 178 comprises a swing arm body 1781, a first swing block 1783 and a second swing block 1785, two ends of the swing arm body 1781 are respectively connected with the first swing block 1783 and the second swing block 1785, a first bearing is arranged on the first swing block 1783, the first swing block 1783 is rotatably connected with a first rotating shaft through the first bearing, a second bearing is arranged on the second swing block 1785, a second rotating shaft is arranged on the transmission seat 179, and the second swing block 1785 is rotatably connected with the second rotating shaft through the second bearing.

It should be noted that the cam mechanism 173 in the present embodiment is consistent with the power transmission principle of the conventional cam transmission mechanism, and is not described excessively here.

In this embodiment, the die cutting drive 171 includes a motor 1711 and a reducer 1713, the motor 1711 is drivingly connected to the reducer 1713, and the reducer 1713 is disposed on the mounting frame 175 and drivingly connected to the cam mechanism 173. The rotational speed of the cam plate 177 is made lower by the deceleration action of the decelerator 1713, thereby better driving the swing arm body 1781 to swing.

In summary, the present embodiment provides a pole piece punching and forming machine 100, in which the punching frame 150 is driven by the linear driving member 130 to perform a linear motion and can move synchronously with the pole piece 180, and at this time, the punching assembly 190 performs a linear motion and punches the pole piece 180 along with the punching frame 150, because the punching assembly 190 and the pole piece 180 can also keep a synchronous motion, i.e., keep relatively stationary, the punching effect of the punching assembly 190 can be achieved, and at this time, the pole piece 180 is in a continuous motion state. When the male die 1913 contacts the pole piece 180, the linear driving member 130 drives the punching frame 150 to move at the same speed as the pole piece 180, so that the punching frame 150 is ensured to return to move under the driving of the linear driving member 130 after the die and the pole piece 180 are relatively stationary until the V-angle is cut. Compared with the prior art, the pole piece punching forming machine 100 provided by the embodiment can realize punching action under the condition that the pole piece 180 does not stop moving, so that the punching speed is increased, and the punching efficiency is greatly improved.

Second embodiment

Referring to fig. 6, the present embodiment provides a laser tab cutting apparatus 200, which includes a laser tab cutting device 210 and a pole piece die cutting and forming machine 100, wherein the basic structure and principle of the pole piece die cutting and forming machine 100 and the technical effects produced thereby are the same as those of the first embodiment, and for the sake of brief description, reference may be made to the corresponding contents of the first embodiment where nothing is mentioned in part in the present embodiment.

In this embodiment, the pole piece die-cutting forming machine 100 includes a bearing base 110, a linear driving member 130, a die-cutting frame 150, a die-cutting driving assembly 170 and a die-cutting assembly 190, wherein the die-cutting frame 150 is movably disposed on the bearing base 110 and is in transmission connection with the linear driving member 130, and is used for making a linear motion under the driving of the linear driving member 130 and moving synchronously with the pole piece 180, the die-cutting driving assembly 170 is disposed on the die-cutting frame 150, the die-cutting assembly 190 is disposed on the die-cutting frame 150 and is in transmission connection with the die-cutting driving assembly 170, and the die-cutting assembly 190 has a die-cutting clamping slot 195 for the pole piece 180 to pass through, and is used for. The laser tab cutting device 210 is arranged on the discharge side of the die-cutting clamping groove 195 and is used for cutting the die-cut pole piece 180.

In this embodiment, the number of the pole piece punching and forming machines 100 is multiple, the apparatus for cutting the tab by using the laser further includes an unwinding device 220, a slitting device 230, a brush assembly 240, a V-angle deviation correcting device 250, a cutting deviation correcting device 260, a driving device 270, an air knife dust removing device 280 and a winding device 290, which are sequentially arranged, and specifically, the pole piece 180, after being unwound by the unwinding device 220, sequentially passes through the slitting device 230, the brush assembly 240, the V-angle deviation correcting device 250, the plurality of pole piece punching and forming machines 100, the cutting deviation correcting device 260, the laser tab cutting device 210, the driving device 270, the air knife dust removing device 280 and the winding device 290, so as to realize the operations of punching, tab cutting and the like. The whole process comprises the steps of unwinding the pole piece 180, cutting V-angle deviation correction, chasing and cutting V-angle (a plurality of) V-angle, cutting tab deviation correction, laser cutting tab, driving assembly, CCD detection, air knife dust removal (2) and winding. Wherein, the unreeling and reeling components adopt a magnetic powder clutch component to control tension.

It should be noted that, because the speed of cutting the tab by laser is very fast, which is much higher than the speed of cutting the V-angle by the linear driving member 130, one device generally uses multiple sets of dies to cut the V-angle.

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

Claims (10)

1. The utility model provides a die-cut make-up machine of pole piece, its characterized in that, is including bearing base, linear drive spare, die-cut frame, die-cut drive assembly and die-cut subassembly, die-cut frame activity sets up bear on the base and with the linear drive spare transmission is connected, be used for linear drive spare drive down make linear motion and with pole piece synchronous motion, die-cut drive assembly sets up in the die-cut frame, die-cut subassembly sets up in the die-cut frame and with die-cut drive assembly transmission is connected, just die-cut subassembly has the confession the die-cut double-layered groove that the pole piece passed is used for following die-cut frame is made linear motion and die-cut the pole piece.

2. The pole piece punching and forming machine according to claim 1, wherein the punching assembly comprises a first punching die and a second punching die which are oppositely arranged, the punching clamping groove is formed between the first punching die and the second punching die, the second punching die is fixedly arranged on the punching frame, and the first punching die is in transmission connection with the punching driving assembly and is driven by the punching driving assembly to be close to or far away from the second punching die.

3. The pole piece punching and forming machine according to claim 2, wherein the first punching die comprises a first die holder and a male die arranged on the first die holder, the second punching die comprises a second die holder and a female die arranged on the second die holder, the first die holder is in transmission connection with the punching drive assembly, the second die holder is fixedly arranged on the punching frame, and the male die and the female die are oppositely arranged and form the punching clamping groove.

4. The pole piece punching and forming machine according to claim 3, wherein the second die holder is provided with a guide post, and the first die holder is slidably provided on the guide post and can slide along the guide post under the driving of the punching drive assembly.

5. The pole piece die-cutting forming machine according to claim 2, wherein the die-cutting driving assembly comprises a die-cutting driving member, a cam mechanism and a mounting frame, the mounting frame is arranged at the top of the die-cutting frame, the die-cutting driving member is arranged on one side of the mounting frame, the cam mechanism is arranged on the other side of the mounting frame and is in transmission connection with the die-cutting driving member, and the first die-cutting die is in transmission connection with the cam mechanism.

6. The pole piece punching and forming machine according to claim 5, wherein the cam mechanism comprises a cam disc, a driven swing arm and a transmission seat, the cam disc is rotatably arranged on the mounting frame and is in transmission connection with the punching driving member, a first rotating shaft is eccentrically arranged on the cam disc, the transmission seat is fixedly arranged on the first punching die, one end of the driven swing arm is rotatably connected with the first rotating shaft, and the other end of the driven swing arm is rotatably connected with the transmission seat.

7. The pole piece punching and forming machine according to claim 6, wherein the driven swing arm comprises a swing arm body, a first swing block and a second swing block, two ends of the swing arm body are respectively connected with the first swing block and the second swing block, the first swing block is provided with a first bearing, the first swing block is rotatably connected with the first rotating shaft through the first bearing, the second swing block is provided with a second bearing, the transmission seat is provided with a second rotating shaft, and the second swing block is rotatably connected with the second rotating shaft through the second bearing.

8. The pole piece blanking machine of claim 5 wherein the blanking drive member includes a motor and a speed reducer, the motor being drivingly connected to the speed reducer, the speed reducer being disposed on the mounting bracket and drivingly connected to the cam mechanism.

9. The pole piece punching and forming machine according to claim 1, wherein a slide bar is disposed on the bearing base, the punching frame is slidably disposed on the slide bar and driven by the linear driving member to reciprocate linearly along the slide bar, and the direction of the slide bar is the same as the direction of the pole piece.

10. A laser tab cutting device is characterized by comprising a laser tab cutting device and at least one pole piece punching forming machine according to any one of claims 1 to 9, wherein the laser tab cutting device is arranged on the discharge side of the punching clamping groove and is used for cutting the punched pole piece.

Images