CN116275715A

CN116275715A - Current collecting disc welding system

Info

Publication number: CN116275715A
Application number: CN202310106651.8A
Authority: CN
Inventors: 丛长波; 付小冬; 朱彬
Original assignee: Jiangsu Yifei Laser Equipment Co ltd; Wuhan Yifi Laser Corp Ltd
Current assignee: Jiangsu Yifei Laser Equipment Co ltd; Wuhan Yifi Laser Corp Ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-06-23

Abstract

The invention relates to the technical field of battery processing, and provides a current collecting disc welding system which comprises a conveying line, a current collecting disc feeding mechanism, a welding turntable and welding equipment, wherein the conveying line is connected with the current collecting disc feeding mechanism; the conveying line, the collecting disc feeding mechanism and the welding equipment are arranged around a welding turntable, the welding turntable comprises a turntable assembly and a welding clamping assembly, and the welding clamping assembly is arranged along the circumferential direction of the turntable assembly; the conveying line is used for conveying the battery cells to be welded to the turntable assembly, and the turntable assembly is used for driving the battery cells to be welded to move along the circumferential direction and conveying the semi-finished batteries which are welded to the conveying line; the current collecting disc feeding mechanism is used for transferring the current collecting disc to the welding clamping assembly, and the welding clamping assembly is used for fixing the current collecting disc at the end part of the cell to be welded; the welding equipment is used for welding the current collecting disc on the end part of the electric core to be welded so as to obtain the semi-finished battery. The invention not only reduces the occupation of the welding system of the collecting plate to the field space, but also is beneficial to improving the welding efficiency of the collecting plate.

Description

Current collecting disc welding system

Technical Field

The invention relates to the technical field of battery processing, in particular to a current collecting disc welding system.

Background

The battery cell is the most important component of the battery, and the battery cell can be assembled to form a finished battery after being sequentially subjected to the working procedures of mechanical/ultrasonic flattening, encapsulation, shell entering, current collecting disc welding, sealing welding and the like. Therefore, the performance of the battery cell directly affects the battery performance, and the preparation of the battery cell and the welding process of the current collecting disc before battery assembly are very important.

At present, when the end part of the battery core is welded by the current collecting disc, the battery core is generally fed along the linear distribution of the battery core feeding line, one side of the battery core feeding line is provided with the current collecting disc feeding production line, the current collecting disc feeding production line transfers the current collecting disc to the welding pressing mechanism on the battery core feeding line, and the current collecting disc is clamped between the end part of the battery core and the welding pressure head through the welding pressing mechanism so as to realize the welding of the current collecting disc through the laser welding equipment.

However, in practical application, it is found that the existing current collecting disc welding system can only perform the arrangement of the welding pressing mechanism and the laser welding device along the extending direction of the battery cell step feeding, so that the problems of large occupied space and low welding efficiency exist.

Disclosure of Invention

The invention provides a current collecting disc welding system which is used for solving the problems of large occupied space and low welding efficiency of the existing current collecting disc welding system.

The invention provides a current collecting plate welding system, which comprises: the welding device comprises a conveying line, a collecting disc feeding mechanism, a welding turntable and welding equipment;

the conveying line, the collecting disc feeding mechanism and the welding equipment are arranged around the welding turntable, the welding turntable comprises a turntable assembly and a welding clamping assembly, and the welding clamping assembly is arranged along the circumferential direction of the turntable assembly;

the conveying line is used for conveying the battery cells to be welded to the rotary table assembly, and the rotary table assembly is used for driving the battery cells to be welded to move along the circumferential direction and conveying the semi-finished batteries which are welded to the conveying line;

the current collecting disc feeding mechanism is used for transferring the current collecting disc to the welding clamping assembly, and the welding clamping assembly is used for fixing the current collecting disc at the end part of the battery cell to be welded;

the welding equipment is used for welding the current collecting disc to the end part of the electric core to be welded so as to obtain the semi-finished battery.

According to the current collecting disc welding system provided by the invention, the welding clamping assembly comprises a cam disc and a plurality of clamping assemblies;

the cam disc is arranged on the upper side of the turntable assembly, and the clamping assemblies are circumferentially arranged on the cam disc; the cam disc is provided with a cam structure, and each clamping assembly is connected with the cam structure and can be switched between a first state and a second state under the driving of the cam structure;

wherein, under the condition that the clamping assembly is in a first state, a clamping opening of the clamping assembly is in an open state so as to receive the collecting tray from the collecting tray feeding mechanism;

and under the condition that the clamping assembly is in the second state, the clamping opening of the clamping assembly is in a closed state so as to fix the current collecting disc at the upper end of the battery cell to be welded.

According to the current collecting disc welding system provided by the invention, the clamping assembly comprises a fixing piece, a supporting piece and a linkage piece;

the fixed part is arranged on the cam disc, the bearing part is movably arranged on one side of the fixed part, which is away from the disc center of the turntable assembly, in the vertical direction, and the linkage part is movably arranged on the fixed part in the radial direction of the turntable assembly;

the support is provided with a positioning hole which is matched with the upper end of the battery cell to be welded; the first end of the linkage piece is in linkage connection with the cam structure, so that the linkage piece moves relative to the fixing piece under the drive of the cam structure, and the second end of the linkage piece is provided with a welding pressure head;

the welding press head and the positioning hole are arranged in a staggered mode when the clamping assembly is in a first state, the distance between the welding press head and the center of the turntable assembly is smaller than that between the positioning hole and the center of the turntable assembly, and the supporting piece positions the collecting disc from the collecting disc feeding mechanism through the positioning hole;

under the condition that the clamping assembly is in the second state, the welding pressure head is arranged on the upper side of the positioning hole, the upper end of the battery cell to be welded is arranged in the positioning hole in a penetrating mode, and the current collecting disc is clamped between the welding pressure head and the upper end of the battery cell to be welded.

According to the collecting disc welding system provided by the invention, the cam disc is provided with the annular groove, and the annular groove is arranged along the cam-shaped track in an extending way, so that the cam structure is formed on the cam disc;

the first end of the linkage piece is provided with a roller, the roller is arranged in the annular groove, and the roller is in rolling contact with the edge of the cam structure.

According to the current collecting disc welding system provided by the invention, the welding clamping assembly comprises a jacking plate and an elastic piece;

the jacking plate extends along the circumferential direction of the turntable assembly and is used for bearing the battery cell to be welded; the jacking plate is used for changing the height of the upper end of the battery cell to be welded relative to the surface of the cam disc in the process that the battery cell to be welded moves along the circumferential direction of the turntable assembly;

the elastic piece is arranged between the bearing piece and the fixing piece so as to control the height of the bearing piece relative to the fixing piece.

According to the current collecting disc welding system provided by the invention, the turntable assembly comprises a bracket platform, a gear driving disc and a fence;

the gear driving disc is rotatably arranged on the support platform, the enclosing baffle is arranged on the support platform, and the enclosing baffle is positioned on the outer side of the gear driving disc and extends along the circumferential direction of the gear driving disc;

the gear drive plate is provided with a plurality of tooth grooves along the circumferential direction, and under the limit of the surrounding baffle, the gear drive plate drives the battery core to be welded to move along the circumferential direction of the gear drive plate through the tooth grooves, and the semi-finished battery is conveyed to the conveying line.

According to the collecting disc welding system provided by the invention, the collecting disc feeding mechanism comprises a collecting disc feeding assembly and a collecting disc feeding turntable;

the plurality of collecting disc feeding assemblies are arranged along the circumferential direction of the collecting disc feeding turntable, and the collecting disc feeding turntable is arranged on one side of the welding turntable;

the collecting disc feeding assembly is used for transferring the collecting disc to the collecting disc feeding turntable, and the collecting disc feeding turntable is used for transferring the collecting disc to the welding clamping assembly.

According to the current collecting disc welding system provided by the invention, the current collecting disc feeding assembly comprises a current collecting disc storage rack, a first transferring assembly and a second transferring assembly;

the first transfer component is used for transferring the collecting tray stored on the collecting tray storage rack to the second transfer component, and the second transfer component is used for transferring the collecting tray to the collecting tray feeding turntable;

the first transfer assembly comprises a rotary driving piece, a first lifting driving piece and a first mounting frame; the output end of the rotary driving piece is connected with the first lifting driving piece, the output end of the first lifting driving piece is connected with the middle part of the first mounting frame, the first end of the first mounting frame is provided with a first negative pressure adsorption component, and the second end of the first mounting frame is provided with a second negative pressure adsorption component;

the second transfer assembly comprises a first linear driving module, a second lifting driving piece and a collecting disc bracket; the second lifting driving piece is arranged on the sliding table of the first linear driving module, and the output end of the second lifting driving piece is connected with the collecting disc bracket;

under the condition that the first negative pressure adsorption component is positioned on the upper side of the collecting disc storage rack, the first linear driving module can drive the second lifting driving piece to move, so that the collecting disc bracket reaches the lower side of the second negative pressure adsorption component, and the collecting disc bracket reaches the position where the disc edge of the collecting disc feeding turntable is positioned.

According to the collecting disc welding system provided by the invention, the collecting disc feeding turntable comprises a rotating disc and a plurality of second mounting frames;

the second installation frames are sequentially arranged along the circumferential direction of the rotating disc, and each second installation frame is provided with a third negative pressure adsorption component;

and under the drive of the rotating disc, the collecting disc feeding turntable performs collecting of the collecting disc from the collecting disc feeding assembly through the third negative pressure adsorption assembly, and transfers the collecting disc to the welding clamping assembly.

According to the current collecting disc welding system provided by the invention, the conveying line comprises a chain plate conveyor, a plurality of battery cell carriers are arranged on the chain plate conveyor, the battery cell carriers are sequentially distributed along the conveying direction of the chain plate conveyor, and each battery cell carrier is used for storing the battery cells to be welded;

and/or the conveyor line comprises a first conveying section, a second conveying section and a third conveying section; the first conveying section, the second conveying section and the third conveying section are sequentially connected, a feeding guide frame is arranged on the upper side of the first conveying section, the second conveying section and the welding turntable are oppositely arranged, and a discharging guide frame is arranged on the upper side of the third conveying section; the feeding guide frame can guide the to-be-welded battery cells conveyed by the first conveying section to move to the welding turntable, and the semi-finished battery on the welding turntable can reach the third conveying section under the guidance of the discharging guide frame.

According to the current collecting disc welding system, the conveying line, the current collecting disc feeding mechanism and the welding equipment are arranged around the welding turntable, the battery core to be welded can be conveyed to the turntable assembly of the welding turntable through the conveying line, the current collecting disc is conveyed to the welding clamping assembly of the welding turntable through the current collecting disc feeding mechanism, then the battery core to be welded and the welding clamping assembly bearing the current collecting disc are driven to move to a welding station corresponding to the welding equipment through the turntable assembly, and the current collecting disc is welded to the end part of the battery core to be welded through the welding equipment. The arrangement structure not only reduces the occupation of the current collecting disc welding system to the field space, but also is based on the turntable assembly of the welding turntable, and a plurality of sets of welding equipment can be arranged along the circumference of the turntable assembly, thereby being beneficial to improving the welding efficiency of the current collecting disc.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of a current collector plate welding system provided by the present invention;

FIG. 2 is a schematic view of the conveyor line and welding equipment provided by the present invention disposed about a welding turntable;

FIG. 3 is a schematic view of a welding turntable according to the present invention;

FIG. 4 is a schematic view of the arrangement of the lift plate relative to the cam plate provided by the present invention;

FIG. 5 is a schematic view of a clamping assembly according to the present invention;

fig. 6 is a schematic structural view of a loading mechanism of a collecting tray provided by the invention;

reference numerals:

1. a conveying line; 11. a first conveying section; 12. a second conveying section; 13. a third conveying section; 101. a feeding guide frame; 102. a blanking guide frame;

2. a collecting disc feeding mechanism; 21. a collecting tray feeding assembly; 22. a collecting disc feeding turntable; 211. a collecting tray storage rack; 212. a first transfer assembly; 213. a second transfer assembly; 214. a jacking assembly; 2121. a rotary driving member; 2122. a first lifting driving member; 2123. a first mounting frame; 2131. a first linear driving module; 2132. a second lifting driving member; 2133. a collecting tray bracket; 2141. a second linear driving module; 2142. a jacking frame; 221. a rotating disc; 222. a second mounting frame; 201. a first negative pressure adsorption assembly; 202. a second negative pressure adsorption assembly; 203. a third negative pressure adsorption assembly;

3. welding a turntable; 31. a turntable assembly; 32. welding the clamping assembly; 311. a support platform; 312. a gear drive plate; 313. a surrounding baffle; 321. a cam plate; 322. a clamping assembly; 323. a jacking plate; 3211. an annular groove; 3212. a cam structure; 3221. a fixing member; 3222. a support; 3223. a linkage member; 3224. an elastic member; 32221. positioning holes; 32231. a roller; 32232. welding a pressure head;

4. a welding device; 41. a mounting frame; 42. a galvanometer type laser welding machine;

5. the battery cell carrier.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The following describes a current collecting disc welding system provided by the embodiment of the present invention in detail through specific embodiments and application scenarios thereof with reference to fig. 1 to 6.

As shown in fig. 1 and 2, the present invention provides a current collecting plate welding system, comprising: transfer chain 1, mass flow dish feed mechanism 2, welding carousel 3 and welding equipment 4.

The conveying line 1, the collecting disc feeding mechanism 2 and the welding equipment 4 are arranged around the welding turntable 3, the welding turntable 3 comprises a turntable assembly 31 and a welding clamping assembly 32, and the welding clamping assembly 32 is arranged along the circumference of the turntable assembly 31.

The conveying line 1 is used for conveying the battery cells to be welded to the rotary table assembly 31, and the rotary table assembly 31 is used for driving the battery cells to be welded to move along the circumferential direction and conveying the semi-finished batteries which are welded to the conveying line 1.

The current collecting disc feeding mechanism 2 is used for transferring the current collecting disc to the welding clamping assembly 32, and the welding clamping assembly 32 is used for fixing the current collecting disc at the end part of the cell to be welded.

The welding device 4 is used for welding the current collecting disc to the end part of the electric core to be welded so as to obtain a semi-finished battery.

It can be understood that the conveying line 1 of the present embodiment may extend along a straight line track or along a curved line track, which is not limited in particular, and on the basis of meeting the conveying requirements of the to-be-welded battery core and the semi-finished battery, the occupation of the field space needs to be reduced as much as possible.

Alternatively, the conveyor line 1 of the present embodiment comprises a first conveyor section 11, a second conveyor section 12 and a third conveyor section 13; the first conveying section 11, the second conveying section 12 and the third conveying section 13 are sequentially connected, a feeding guide frame 101 is arranged on the upper side of the first conveying section 11, the second conveying section 12 and the welding turntable 3 are oppositely arranged, and a discharging guide frame 102 is arranged on the upper side of the third conveying section 13; the feeding guide frame 101 can guide the to-be-welded battery cells conveyed by the first conveying section 11 to move onto the welding turntable 3, and the semi-finished battery on the welding turntable 3 can reach the third conveying section 13 under the guidance of the discharging guide frame 102.

Wherein, the material loading guide frame 101 includes first guide arm and second guide arm, and first guide arm and second guide arm set up side by side, and first guide arm and second guide arm all extend along the extending direction of first transport section 11 and set up, can set up a plurality of electric cores that wait to weld between first guide arm and the second guide arm, and a plurality of electric cores that wait to weld are arranged in proper order along the extending direction of first transport section 11.

Accordingly, the discharging guide frame 102 includes a third guide rod and a fourth guide rod, which are disposed side by side, and each of which extends along the extending direction of the third conveying section 13, and a plurality of semi-finished batteries may be disposed between the third guide rod and the fourth guide rod and sequentially arranged along the extending direction of the third conveying section 13.

Optionally, the conveying line 1 of the present embodiment may be configured as a chain-link conveyor, on which a plurality of electric core carriers 5 are disposed, where the plurality of electric core carriers 5 are sequentially arranged along a conveying direction of the chain-link conveyor, and each electric core carrier 5 is used for storing electric cores to be welded; the upper end of the battery cell to be welded is exposed out of the open end of the battery cell carrier 5.

In some examples, to facilitate welding the current collecting tray to the end of the cell to be welded, the present embodiment may mount at least a portion of the welding clamp assembly 32 to the upper side of the turntable assembly 31 and may rotate along with the turntable assembly 31 under the driving of the turntable assembly 31.

In this way, when the turntable assembly 31 drives the battery cell to be welded to move along the circumferential direction of the turntable assembly 31, the welding clamping assembly 32 can be ensured to fix the current collecting disc at the end part of the battery cell to be welded, so that when the battery cell to be welded and the current collecting disc jointly reach the welding station, the current collecting disc can be welded at the end part of the battery cell to be welded through the welding equipment 4.

The turntable assembly 31 is understood to be a driving component that drives the plurality of cells to be soldered to rotate along the circumferential direction thereof. Alternatively, the turntable assembly 31 may be a planar turntable or an endless conveyor chain extending in a disk shape.

At the same time, the welding clamp assembly 32 is understood to be a fixing member capable of fixing the collecting tray to the end of the cell to be welded. The welding clamping assembly 32 at least comprises a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are used for clamping and fixing the current collecting disc. To facilitate current collector plate welding, one of the first and second clamping portions may be provided as a welding ram to press the current collector plate against the end of the cell to be welded.

In some examples, the present embodiment may provide a plurality of sets of welding apparatuses 4 along the circumference of the turntable assembly 31, each set of welding apparatuses 4 including a mounting frame 41 and a galvanometer type laser welder 42, the galvanometer type laser welders 42 being distributed on the upper side of the welding clamp assembly 32, so that the present embodiment may weld the collecting tray to the end of the battery cell to be welded by means of laser penetration welding based on the galvanometer type laser welder 42.

As can be seen from the above, in this embodiment, by arranging the conveying line 1, the current collecting tray feeding mechanism 2 and the welding device 4 around the welding turntable 3, the battery cells to be welded can be conveyed to the turntable assembly 31 of the welding turntable 3 through the conveying line 1, the current collecting tray is conveyed to the welding clamping assembly 32 of the welding turntable 3 through the current collecting tray feeding mechanism 2, then, the battery cells to be welded and the welding clamping assembly 32 carrying the current collecting tray are driven to move to the welding station corresponding to the welding device 4 through the turntable assembly 31, and the current collecting tray is welded to the end part of the battery cells to be welded through the welding device 4. The arrangement structure not only reduces the occupation of the length space by the current collecting disc welding system, but also can set a plurality of sets of welding equipment 4 along the circumferential direction of the turntable assembly 31 based on the turntable assembly 31 of the welding turntable 3, thereby improving the welding efficiency of the current collecting disc.

In some embodiments, as shown in fig. 3, the welding clamp assembly 32 of the present embodiment includes a cam plate 321 and a plurality of clamp assemblies 322.

The cam plate 321 is arranged on the upper side of the turntable assembly 31, and a plurality of clamping assemblies 322 are circumferentially arranged on the cam plate 321; cam plate 321 is provided with a cam structure 3212, and each clamping assembly 322 is connected to cam structure 3212 and is switchable between a first state and a second state by actuation of cam structure 3212.

Wherein, in the condition that the clamping assembly 322 is in the first state, the clamping opening of the clamping assembly 322 is in an open state to receive the collecting tray from the collecting tray feeding mechanism 2; with the clamping assembly 322 in the second state, the clamping opening of the clamping assembly 322 is in a closed state to secure the current collecting plate to the upper end of the cell to be welded.

Thus, based on the linkage setting of the cam structure 3212 and each clamping assembly 322, when the battery cell to be welded does not reach the welding station, the cam structure 3212 can drive the clamping opening of the clamping assembly 322 to be in an open state, and the setting is convenient for the collecting tray feeding mechanism 2 to transfer the collecting tray to the clamping opening of the clamping assembly 322, so that the feeding path of the collecting tray feeding mechanism 2 and the clamping assembly 322 are prevented from interfering.

Accordingly, when the cell to be welded and the current collecting plate reach the welding station, the cam structure 3212 can drive the clamping opening of the clamping assembly 322 to be in a closed state, and the clamping assembly 322 is convenient to fix the current collecting plate at the upper end of the cell to be welded, so that the current collecting plate can be welded at the end of the cell to be welded through the welding equipment 4.

Based on the above arrangement, the multiple battery cells to be welded and the multiple clamping assemblies 322 driven by the turntable assembly 31 can be oppositely arranged one by one, and based on the cam structure 3212, the states of the multiple clamping assemblies 322 are controlled in a linkage manner, and at each welding station corresponding to the welding turntable 3, the upper end of each battery cell to be welded is ensured to be provided with a current collecting disc to be welded, so that the welding operation of the multiple current collecting discs can be simultaneously performed, and the welding efficiency of the current collecting discs can be improved.

In some embodiments, as shown in FIG. 5, the clamping assembly 322 of the present embodiment includes a mount 3221, a support 3222, and a linkage 3223.

The fixed member 3221 is disposed on the cam plate 321, the supporting member 3222 is disposed on a side of the fixed member 3221 away from the center of the turntable assembly 31 in a movable manner in a vertical direction, and the linkage member 3223 is disposed on the fixed member 3221 in a movable manner in a radial direction of the turntable assembly 31; the supporting piece 3222 is provided with a positioning hole 32221, and the positioning hole 32221 is matched with the upper end of the cell to be welded; a first end of the linkage 3223 is coupled to the cam formation 3212 such that the linkage 3223 is driven by the cam formation 3212 to move relative to the fixed member 3221, and a second end of the linkage 3223 is provided with a welding ram 32232.

With the clamp assembly 322 in the first state, the clamp port of the clamp assembly 322 is now in an open state. Specifically, the welding ram 32232 and the positioning hole 32221 are arranged in a staggered manner, the distance between the welding ram 32232 and the center of the turntable assembly 31 is smaller than the distance between the positioning hole 32221 and the center of the turntable assembly 31, and the supporting member 3222 positions the collecting tray from the collecting tray feeding mechanism 2 through the positioning hole 32221 so as to be ready for a subsequent collecting tray welding operation.

As the welding turntable 3 rotates, the linkage 3223 is driven by the cam mechanism 3212 to extend toward a side facing away from the center of the turntable assembly 31 until a welding ram 32232 on the linkage 3223 moves to an upper side of the positioning hole 32221 to cause the clamp assembly 322 to switch from the first state to the second state.

Specifically, in the case that the clamping assembly 322 is in the second state, the welding ram 32232 is disposed at the upper side of the positioning hole 32221, and the upper end of the to-be-welded cell is inserted into the positioning hole 32221, so as to clamp the current collecting tray between the welding ram 32232 and the upper end of the to-be-welded cell, thereby fixing the current collecting tray to the upper end of the to-be-welded cell, so that the welding operation of the current collecting tray is performed through the welding device 4.

It should be noted here that the linkage 3223 and the fixing 3221 of the present embodiment may be slidably fitted by a first slide rail and a first slide groove, the first slide rail being provided along a radial extension of the turntable assembly 31.

Accordingly, the support 3222 and the fixing member 3221 of the present embodiment may be slidably fitted through a second slide rail and a second slide groove, the second slide rail being provided to extend in the vertical direction (the height direction of the welding turntable 3).

In some embodiments, as shown in fig. 4 and 5, to facilitate the control of the reciprocating movement of linkage 3223 relative to stationary member 3221 in the radial direction of turntable assembly 31 by cam mechanism 3212, cam plate 321 of the present embodiment is provided with an annular groove 3211, and annular groove 3211 is disposed along a cam-shaped track so that cam plate 321 forms cam mechanism 3212 thereon; a first end of the linkage 3223 is provided with a roller 32231, a roller 32231 is provided in the annular groove 3211, and the roller 32231 is in rolling contact with the edges of the cam formation 3212.

Specifically, the annular groove 3211 of the present embodiment includes a first groove segment and a second groove segment, the first groove segment extends along an arc track with respect to the hub of the turntable assembly 31, and the extending path of the second groove segment is not specifically limited, but the radial distance of the first groove segment with respect to the hub of the turntable assembly 31 is greater than the radial distance of the second groove segment with respect to the hub of the turntable assembly 31. In this embodiment, the plurality of welding devices 4 may be sequentially arranged along the extending direction of the first groove body section.

Thus, when the roller 32231 moves along the extending direction of the second slot segment, the clamping assembly 322 is in the first state so as to load the collecting tray; while the roller 32231 is moved in the direction of extension of the first slot segment, the clamping assembly 322 is in the second position for welding the manifold.

In some embodiments, as shown in fig. 4 and 5, the welding clamp assembly 32 of the present embodiment includes a lift plate 323 and an elastic member 3224.

The jacking plate 323 extends along the circumference of the turntable assembly 31, and the jacking plate 323 is used for bearing the battery cells to be welded; the lift plate 323 serves to vary the height of the upper end of the cells to be soldered relative to the surface of the cam plate 321 during their movement in the circumferential direction of the turntable assembly 31. An elastic member 3224 is provided between the support member 3222 and the fixing member 3221 to control the height of the support member 3222 with respect to the fixing member 3221.

Specifically, the jacking plate 323 of the present embodiment is crescent-shaped, and the jacking plate 323 includes a first section, a second section, and a third section connected in sequence; one end of the first section, which is away from the second section, extends to a first conveying section 11 of the conveying line 1, and the thickness of the first section gradually increases along the extending direction of the first section to the second section; one end of the third segment facing away from the second segment extends to a third conveying section 13 of the conveying line 1, the thickness of the third segment gradually decreasing along the extension direction of the second segment to the third segment. Wherein the first channel section of the annular groove 3211 and the second section of the jacking plate 323 are disposed in a vertically opposed relationship.

As such, when the cell carrier 5 carries the cells to be soldered moving from the first conveying section 11 of the conveying line 1 to the first section of the jacking plate 323, the clamping assembly 322 is in the first state during the movement of the cells to be soldered along the circumferential direction of the turntable assembly 31, and the height of the upper end of the cells to be soldered relative to the surface of the cam plate 321 is gradually increased under the guidance of the first section of the jacking plate 323.

When the cell carrier 5 carries the cell to be welded and moves to the second section of the lifting plate 323, the clamping assembly 322 is in the second state, and the upper end of the cell to be welded rises into the positioning hole 32221 on the supporting member 3222 and extends out of the positioning hole 32221 until the current collecting disc supports the upper end of the cell to be welded. Since the welding ram 32232 on the linkage 3223 is moved to the upper side of the positioning hole 32221 under the driving of the cam structure 3212, the current collecting plate can be clamped between the welding ram 32232 and the upper end of the cell to be welded under the combined action of the cam plate and the jacking plate and the clamping assembly, so that the welding operation of the current collecting plate is performed through the welding equipment 4, and a semi-finished battery is obtained.

When the cell carrier 5 carries the cells to be welded to the third section of the jacking plate 323, the clamping assembly 322 is in the first state, and the upper ends of the cells to be welded are lowered until the upper ends of the cells to be welded are disengaged from the positioning holes 32221 on the support 3222, so that the cell carrier 5 carries the semi-finished batteries to move from the third section of the jacking plate 323 to the third conveying section 13 of the conveying line 1.

It should be noted here that the elastic member 3224 of the present embodiment may be a spring. When the cell carrier 5 is moving along the first section or the third section of the jacking plate 323, the spring is in an initial state or a stretched state, and the spring reaches a first length; the springs are in tension as the cell carrier 5 moves along the second section of the lift plate 323, at which point the springs reach the second length. Wherein the second length is greater than the first length.

In some embodiments, as shown in fig. 3, in order to facilitate driving the cell carriers 5 to move along the extending direction of the jacking plate 323, the turntable assembly 31 of the present embodiment includes a bracket platform 311, a gear drive plate 312, and a fence 313; the gear driving disc 312 is rotatably arranged on the support platform 311, the enclosure 313 is arranged on the support platform 311, and the enclosure 313 is positioned on the outer side of the gear driving disc 312 and extends along the circumferential direction of the gear driving disc 312.

Meanwhile, a plurality of tooth grooves are formed in the circumferential direction of the edge of the gear driving disc 312 in this embodiment, the gear driving disc 312 drives the battery cells to be welded to move along the circumferential direction of the gear driving disc 312 through the tooth grooves under the limit of the surrounding block 313, and after the welding operation of the current collecting disc is completed at the end part of the battery cells to be welded, the gear driving disc 312 drives the semi-finished battery obtained by welding to move onto the conveying line 1 through the tooth grooves.

Based on the solution of the above embodiment, as shown in fig. 1 and 6, in order to improve the feeding efficiency of the collecting tray and reduce the occupation of the field space by the collecting tray feeding mechanism 2, the collecting tray feeding mechanism 2 of the present embodiment includes a collecting tray feeding assembly 21 and a collecting tray feeding turntable 22.

Specifically, the collecting tray feeding assemblies 21 of the present embodiment are provided in plurality, and the plurality of collecting tray feeding assemblies 21 are arranged along the circumferential direction of the collecting tray feeding turntable 22, and the collecting tray feeding turntable 22 is provided at one side of the welding turntable 3.

The collecting tray feeding assembly 21 is used for transferring the collecting tray to the collecting tray feeding turntable 22, and the collecting tray feeding turntable 22 transfers the collecting tray to the welding clamping assembly 32.

Alternatively, a plurality of manifold plate feed assemblies 21 may be circumferentially arranged along the circumference of manifold plate loading rotor plate 22. For example, the manifold disk feeding assemblies 21 may be provided in two, and the two manifold disk feeding assemblies 21 are arranged at a central angle of 90 ° with respect to the center of the manifold disk feeding turntable 22.

In some embodiments, as shown in fig. 6, the manifold tray feeding assembly 21 of the present embodiment includes a manifold tray storage rack 211, a first transfer assembly 212, and a second transfer assembly 213. Along the radial direction of the collecting tray feeding turntable 22, a collecting tray storage rack 211, a first transfer assembly 212 and a second transfer assembly 213 are sequentially arranged, and the second transfer assembly 213 is arranged between the first transfer assembly 212 and the collecting tray feeding turntable 22.

In practical applications, the first transfer component 212 is used for transferring the pallet stored on the pallet storage rack 211 to the second transfer component 213, and the second transfer component 213 is used for transferring the pallet to the pallet loading turntable 22.

In some examples, the current collecting tray storage rack 211 of this embodiment may include a plurality of root stop bars, where the plurality of root stop bars are all arranged in a limiting manner, an accommodating space is formed between the plurality of root stop bars, and the plurality of current collecting trays may be arranged in a stacked manner in the accommodating space, and the plurality of root stop bars are sequentially arranged along the circumference of the current collecting tray.

In some examples, the first transfer assembly 212 of the present embodiment includes a rotational drive 2121, a first lift drive 2122, and a first mount 2123; the output end of the rotation driving member 2121 is connected to the first lifting driving member 2122, the output end of the first lifting driving member 2122 is connected to the middle portion of the first mounting frame 2123, the first end of the first mounting frame 2123 is provided with the first negative pressure suction assembly 201, and the second end of the first mounting frame 2123 is provided with the second negative pressure suction assembly 202.

In some examples, the second transfer assembly 213 of the present embodiment includes a first linear drive module 2131, a second lift drive 2132, and a collecting tray carrier 2133; the second lifting driving piece 2132 is disposed on the sliding table of the first linear driving module 2131, and an output end of the second lifting driving piece 2132 is connected to the current collecting tray bracket 2133.

In this way, in practical applications, the first transfer module 212 may control the first negative pressure suction module 201 to be located on the upper side of the collecting tray storage rack 211 through the rotation driving member 2121 and the first lifting driving member 2122, and in this process, the first linear driving module 2131 drives the second lifting driving member 2132 to move, so that the collecting tray bracket 2133 reaches the lower side of the second negative pressure suction module 202; after the first negative pressure adsorption assembly 201 finishes the material taking operation on the collecting tray stacked on the collecting tray storage rack 211, the rotary driving member 2121 of the first transfer assembly 212 drives the first mounting rack 2123 to change direction by 180 degrees, the first negative pressure adsorption assembly 201 can directly place the adsorbed collecting tray on the collecting tray bracket 2133 of the second transfer assembly 213, and at this time, the second lifting driving member 2132 can be driven by the first linear driving module 2131 of the second transfer assembly 213 to move, and the collecting tray bracket 2133 carries the collecting tray to the position where the tray edge of the collecting tray feeding turntable 22 is located, so that the collecting tray feeding turntable 22 performs the material taking operation of the collecting tray again.

It should be noted that, in order to facilitate the first transfer module 212 to take the collecting tray from the collecting tray storage rack 211, the collecting tray storage rack 211 of this embodiment may be configured with a lifting module 214, where the lifting module 214 includes a second linear driving module 2141 and a lifting frame 2142, and a sliding table of the second linear driving module 2141 is connected to the lifting frame 2142, and at least part of the lifting frame 2142 may extend into the collecting tray storage rack 211 and is supported at the bottom of the collecting tray arranged in a stacked manner. In this way, the second linear driving module 2141 may gradually lift up the stacking tray supported by the lifting frame 2142 during the process of driving the lifting frame 2142 upwards, so as to perform the material taking operation on the first transfer assembly 212.

In some embodiments, to facilitate the collecting tray feeding turntable 22 to take the collecting tray supported on the collecting tray bracket 2133, the collecting tray feeding turntable 22 of this embodiment includes a rotating tray 221 and a plurality of second mounting frames 222; the plurality of second mounting frames 222 are sequentially arranged along the circumferential direction of the rotating disc 221, and a third negative pressure adsorption assembly 203 is arranged on each second mounting frame 222.

In this way, the second mounting frame 222 on the collecting tray feeding turntable 22 can be moved to a position corresponding to the collecting tray feeding assembly 21 under the driving of the rotating tray 221, so that the collecting tray is taken from the collecting tray feeding assembly 21 by the third negative pressure adsorption assembly 203, and the collecting tray adsorbed by the third negative pressure adsorption assembly 203 can be further transferred to the welding clamping assembly 32 along with the continuous rotation of the rotating tray 221.

It should be noted here that, in order to achieve flexible control of the material taking of the collecting tray, the first negative pressure suction assembly 201, the second negative pressure suction assembly 202, and the third negative pressure suction assembly 203 of the above-described embodiments are respectively communicated with corresponding negative pressure devices. In order to improve the material taking efficiency of the collecting tray, the first negative pressure adsorption assembly 201, the second negative pressure adsorption assembly 202 and the third negative pressure adsorption assembly 203 may each include a plurality of negative pressure suction heads, and the plurality of negative pressure suction heads are arranged side by side.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; while the invention has been described in detail with reference to the foregoing embodiments, it will be appreciated by those skilled in the art that variations may be made in the techniques described in the foregoing embodiments, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A current collecting plate welding system, comprising: the welding device comprises a conveying line, a collecting disc feeding mechanism, a welding turntable and welding equipment;

2. The current collecting plate welding system of claim 1, wherein the welding clamp assembly comprises a cam plate and a plurality of clamp assemblies;

3. The current collecting tray welding system according to claim 2, wherein the clamping assembly comprises a fixture, a support, and a linkage;

4. A manifold plate welding system according to claim 3, wherein said cam plate is provided with an annular groove extending along a cam-like track to form said cam formation thereon;

5. The current collecting tray welding system of claim 3, wherein the welding clamp assembly comprises a jacking plate, the clamp assembly further comprising an elastic member;

6. The current collecting tray welding system of claim 1, wherein the turntable assembly comprises a bracket platform, a gear drive tray, and a fence;

7. The manifold plate welding system of any of claims 1 to 5, wherein the manifold plate loading mechanism comprises a manifold plate feed assembly and a manifold plate loading turntable;

8. The manifold tray welding system of claim 7, wherein the manifold tray feed assembly comprises a manifold tray storage rack, a first transfer assembly, and a second transfer assembly;

9. The manifold disc welding system of claim 7, wherein the manifold disc loading turntable comprises a rotating disc and a plurality of second mounting brackets;

10. The current collecting tray welding system according to any one of claims 1 to 5, wherein the conveying line comprises a chain plate conveyor, a plurality of battery cell carriers are arranged on the chain plate conveyor, the battery cell carriers are sequentially arranged along the conveying direction of the chain plate conveyor, and each battery cell carrier is used for storing the battery cells to be welded;