CN215999029U - Distributing device and series welding machine - Google Patents

Abstract

The application relates to a distributing device and a series welding machine. The distributing device comprises a bearing platform and a bending mechanism. The receiving platform is provided with a first receiving part, a second receiving part and a bending hole which is located between the first receiving part and the second receiving part and is arranged along the vertical direction, the first receiving part is used for receiving the battery piece, the second receiving part is used for receiving the second part of the welding strip, the bending mechanism comprises two bending pieces which are arranged on the two vertical sides of the receiving platform, the two bending pieces are constructed to be controlled to be close to or away from each other along the bending hole, and when the two bending pieces are close to the first position, the welding strip can be bent. Compared with the prior art, the bending process is concentrated on the material distribution device, the welding strip is bent after the relative positions of the welding strip and the cell are well arranged, the position relation between the bent part of the welding strip and the cell can be accurate without the high operation precision of the stringer when the welding strip is arranged, and the manufacturing cost of the stringer is reduced.

Description

Distributing device and series welding machine

Technical Field

The application relates to the technical field of photovoltaic cell manufacturing equipment, in particular to a material distribution device and a series welding machine.

Background

The stringer is one of the important devices in the production process of photovoltaic cells, and a plurality of battery plates are welded into a string of battery strings by using a solder strip. The series welding process of the battery piece relates to a welding strip bending process, and aims to improve the welding effect and reduce the breakage rate. The conventional stringer usually independently bends a welding strip before cutting off the welding strip, and then arranges the bent welding strip on a battery piece, so that the stringer is required to have high operation precision to enable the relative position of the bent part of the welding strip and the battery piece to be accurate, and the manufacturing cost of the stringer is improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a material distribution device and a series welding machine that improve the above-mentioned defects, in order to solve the problem of high manufacturing cost caused by high operation precision of the series welding machine when arranging the bent welding strips on the battery pieces in the prior art.

A material distribution device for arranging a solder ribbon and a battery sheet in a first horizontal direction to form a string unit, the solder ribbon being divided into a first portion and a second portion in a length direction thereof, the first portion of the solder ribbon being lapped over an upper surface of the battery sheet, the material distribution device comprising:

the bearing platform is provided with a first bearing part, a second bearing part and a vertically arranged bending hole positioned between the first bearing part and the second bearing part, the first bearing part is used for bearing the battery piece, and the second bearing part is used for bearing the second part of the welding strip; and

and the bending mechanism comprises two bending pieces arranged on two vertical sides of the bearing platform, the two bending pieces are configured to be controlled to be close to or far away from each other along the bending holes, and when the two bending pieces are close to each other to a first position, the two bending pieces can be matched with the welding strip to be bent.

In one embodiment, the bending mechanism further comprises a first positioning component positioned on the upper side of the second bearing part;

the first positioning assembly comprises a first driving part and a first clamping part, and the first driving part is connected with the first clamping part and is used for driving the first clamping part to clamp or loosen the welding strip on the second bearing part.

In one embodiment, the first clamping portion comprises a mounting bracket, a clamping jaw and a clamping head;

the clamping jaw comprises two clamping blocks and a first elastic piece, the middle part of each clamping block is rotatably connected to the mounting frame, clamping openings capable of clamping or loosening the welding strip are formed at the lower ends of the two clamping blocks, and the first elastic piece is connected with the two clamping blocks;

the chuck is connected with the first driving part, the first driving part is used for driving the chuck to lift, the chuck is provided with a clamping groove with a downward opening, the caliber of the clamping groove is gradually reduced from the opening end of the clamping groove to the bottom of the clamping groove, and at least part of the upper ends of the two clamping blocks are clamped in the clamping groove;

when the chuck descends, the clamping groove descends relative to the two clamping blocks and can enable the upper ends of the two clamping blocks to approach each other so as to open the clamping opening; when the clamping head is lifted, the first elastic piece is used for providing elastic force for closing the clamping opening for the two clamping blocks.

In one embodiment, the first driving part comprises a first driving piece, a first roller and a first connecting block, the first roller is arranged at the output end of the first driving piece, the first connecting block is provided with a first chute, the extending direction of the first chute is arranged at an acute angle with the vertical direction, and the first roller is arranged in the first chute;

when the first driving piece drives the first roller wheel to move along a second horizontal direction perpendicular to the first horizontal direction, the first roller wheel drives the first chute to generate displacement in the vertical direction, so that the first connecting block is lifted;

the chuck is arranged on the first connecting block.

In one embodiment, the bending mechanism further comprises a second positioning component, the second positioning component is arranged on the upper side of the bearing platform and is close to the bending piece on the upper side of the bearing platform;

the second positioning assembly comprises a second clamping part, and when the two bending pieces are located at the first position, the second clamping part can limit the movement of the welding strip.

In one embodiment, the second positioning component moves synchronously with the bending piece on the upper side of the bearing platform.

In one embodiment, the bending mechanism further comprises a mounting block, and one of the two bending pieces is elastically mounted on the mounting block;

when the mounting block is controlled to move vertically, the bending piece mounted on the mounting block is close to or far away from the other bending piece along the bending hole.

In one embodiment, the receiving platform is multiple in number, and the receiving platforms are sequentially arranged along the first horizontal direction;

the distributing device further comprises a variable-pitch driving assembly, wherein the variable-pitch driving assembly is configured to drive two adjacent bearing platforms to mutually approach along the first horizontal direction so as to enable the plurality of bearing platforms to move to a matching position;

when the battery lead is in the matching position, the first receiving part of the jth receiving platform is located above the second receiving part of the jth +1 th receiving platform, so that the lower surface of the battery piece located on the first receiving part of the jth receiving platform is located on the upper side of the solder strip on the second receiving part of the jth +1 th receiving platform, and j is a positive integer.

In one embodiment, the pitch drive assembly comprises a plurality of pitch drives;

one of the bearing platforms is fixedly arranged, the other bearing platforms are connected with one variable-pitch driving piece, and each variable-pitch driving piece is used for driving the connected bearing platform to move to the matching position.

In addition, in an embodiment, a series welding machine is further provided, which includes a welding device, a conveying device and the material distribution device provided in any one of the above embodiments, wherein the conveying device is used for conveying the series unit located on the receiving platform to the welding device, and the welding device is used for welding the welding strips and the battery pieces in the series unit.

In the distributing device, during actual operation, the solder strips and the battery pieces are respectively placed on the first bearing part and the second bearing part, and the positional relationship between the solder strips and the battery pieces is positioned by utilizing the first bearing part and the second bearing part, so that string units with accurate arrangement positions can be formed; after the positions of the welding strips and the battery pieces are arranged, the welding strips are bent by the bending mechanism, so that the string unit form constructed by the welding strips and the battery pieces is more stable. Compared with the prior art, the bending mechanism can be used for bending the welding strip, so that the stability of the string unit structure is improved, the bending process is concentrated on the material distribution device, the bending process is carried out after the welding strip and the battery piece form the structural unit, the string welding machine is not required to have high operation precision when the positions of the welding strip are distributed, the position relation between the bending part of the welding strip and the battery piece can be accurate, and the manufacturing cost of the string welding machine is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a string unit in an embodiment of the present application;

FIG. 2 is a schematic view showing the internal connection state of the string unit shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a receiving platform according to an embodiment of the present application;

FIG. 4 is a schematic view illustrating a use state of a bending mechanism according to an embodiment of the present disclosure;

FIG. 5 is a left side view of the structure shown in FIG. 4;

FIG. 6 is a first state diagram of the first positioning assembly of the structure shown in FIG. 5;

FIG. 7 is a second state diagram of the first positioning assembly of the structure shown in FIG. 6;

FIG. 8 is a diagram illustrating an assembly process of the receiving platform shown in FIG. 3;

FIG. 9 is a front view of the structure shown in FIG. 8;

FIG. 10 is a schematic view of a portion of a dispensing device according to an embodiment of the present disclosure;

fig. 11 is a schematic structural view of a pitch drive assembly in the structure shown in fig. 10.

Description of reference numerals:

11. a receiving platform; 111. a first receiving part; 1111. air holes; 1112. carrying out strip bearing; 1113. an evacuation section; 112. a second receiving part; 1121. a groove; 1122. an avoidance groove; 113. bending the hole; 114. a long groove; 12. a bending mechanism; 121. a bending member; 1211. a first bending member; 1212. a second bending member; 122. a first positioning assembly; 1221. a first driving section; 1221a, a first driving member; 1221b, a first roller; 1221c, a first connection block; 1221d, a first chute; 1222. a first clamping portion; 1222a, a mounting rack; 1222b, a clamping jaw; 1222c, a chuck; 1222d, a card slot; 1222e, a first elastic member;

123. a second positioning assembly; 1231. a second clamping portion; 1232. a second driving section; 1232a, a second driver; 1232b, a second connecting block; 1232c, a second chute; 1232d, a second roller; 124. mounting blocks; 125. a second elastic member; 126. a stopper; 13. a variable pitch drive assembly; 131. a variable pitch drive; 132. a support plate; 20. a string unit; 21. a structural unit; 211. a battery piece; 212. and (7) welding the strip.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The material distribution device provided in the embodiment of the present application is used for arranging the solder strips 212 and the battery pieces 211 in the first horizontal direction to form the string unit 20. Referring to fig. 1 and 2, the string unit 20 includes at least one structural unit 21. The structural unit 21 is formed by a set of solder strips 212 and a battery plate 211. Wherein the solder strip 212 is divided into a first portion and a second portion along its length. A first portion of each solder strip 212 in the structural unit 21 is overlapped on the upper surface of the battery piece 211, and the solder strips 212 are sequentially arranged at intervals along a second horizontal direction perpendicular to the first horizontal direction, and a second portion of the solder strip 212 and the lower surface of the battery piece 211 are in an unconnected state. When the string unit 20 includes N structural units 21, the lower surface of the cell 211 of the i-th structural unit 21 is pressed against the second portion of the solder ribbon 212 of the i + 1-th structural unit 21, the second portion of the solder ribbon 212 of the 1-th structural unit 21 is in an unconnected state, the lower surface of the cell 211 of the N-th structural unit 21 is in an unconnected state, i is an integer less than N, and N is an integer not less than 2.

Referring to fig. 3, 4 and 5, an embodiment of the present application provides a material distribution device, which includes a supporting platform 11 and a bending mechanism 12. The receiving platform 11 has a first receiving portion 111, a second receiving portion 112 and a bending hole 113 located between the first receiving portion 111 and the second receiving portion 112 and arranged along a vertical direction, the first receiving portion 111 is used for receiving the battery piece 211, the second receiving portion 112 is used for receiving a second portion of the solder strip 212, the bending mechanism 12 includes two bending members 121 arranged on two vertical sides of the receiving platform 11, the two bending members 121 are configured to be controlled to approach or separate from each other along the bending hole 113, and the solder strip 212 can be bent when the two bending members 121 approach to a first position.

In the above distributing device, during actual operation, after the battery sheet 211 is placed on the first receiving portion 111, the first portion of the solder strip 212 is overlapped on the upper surface of the battery sheet 211, and the second portion of the solder strip 212 is placed on the second receiving portion 112, the bending mechanism 12 is started after the structural unit 21 is constructed, so that the two bending pieces 121 are close to each other to the first position along the bending hole 113 and the solder strip 212 is bent. In this way, the first receiving part 111 and the second receiving part 112 are used to position the solder ribbon 212 and the battery piece 211, so that the structural unit 21 can be accurately constructed, and the string unit 20 with an accurate arrangement position can be further formed. After the positions of the solder strips 212 and the battery pieces 211 are arranged, the solder strips 212 are bent by the bending mechanism 12, so that the string unit 20 constructed by the solder strips 212 and the battery pieces 211 is more stable in shape.

Compared with the prior art, the bending mechanism 12 can be used for bending the welding strip 212 to improve the stability of the structure of the string unit 20, the bending process is concentrated on the material distribution device, the welding strip 212 is bent after the welding strip 212 and the battery piece 211 are arranged well, the string welding machine does not need to have high operation precision when the welding strip 212 is arranged, the position relation between the bent part of the welding strip 212 and the battery piece 211 can be accurate, and the manufacturing cost of the string welding machine is reduced.

In practical application, the battery piece 211 and the solder ribbon 212 may be placed on a material distribution device by using a transportation mechanism such as a robot, a manipulator, a crane, or the like, so that the battery piece 211 is received by the first receiving portion 111, a first portion of the solder ribbon 212 is overlapped on the battery piece 211, and a second portion of the solder ribbon 212 is received by the second receiving portion. In addition, a molding member such as a net in the prior art may be pressed on the battery sheet 211 to prevent the structural unit 21 from being loose.

It is understood that the number of the bending holes 113 on the receiving platform 11 may be one, the bending holes 113 extend along the second horizontal direction, and the bending members 121 of the bending mechanism 12 all move along the bending holes 113 to bend the plurality of solder strips 212. The receiving platform 11 may also have a plurality of bending holes 113, and each bending hole 113 corresponds to one bending member 121 and bends one solder strip 212.

In some embodiments, the ends of the two bending pieces 121 opposite to each other for contacting the welding strip 212 each have a bending surface, and when the two bending pieces 121 are in the first position, the bending surfaces of the two bending pieces 121 can be engaged with each other to form the bending portion of the welding strip 212.

The distance from one end of the bending piece 121 far away from the first receiving part 111 to the second receiving part 112 is smaller than the distance from one end of the bending piece 121 close to the first receiving part 111 to the second receiving part 112, when the two bending pieces 121 are located at the first position, the bending surfaces of the two bending pieces 121 can be matched with and clamp the solder strip 212, and then the solder strip 212 is bent, so that a height difference is formed between the second part of the solder strip 212 and the first part of the solder strip 212, and further the first part of the solder strip 212 can be stably lapped on the upper surface of the battery piece 211, and the second part of the solder strip 212 can be stably connected with the lower surface of the other battery piece 211, so that the structural stability of the string unit 20 is ensured. It can be understood that, the two ends of the bending surface of the bending member 121 located on the upper side of the receiving platform 11 also have a distance difference, and can be engaged with the bending surface of the bending member 121 located on the lower side.

The bending member 121 located at the lower side of the receiving platform 11 is a first bending member 1211, and the bending member 121 located at the upper side of the receiving platform 11 is a second bending member 1212. In other embodiments, the first and second bending members 1211, 1212 can also bend the solder strip 212 in other manners. For example, the first bending member 1211 is located between the second bending member 1212 and the first receiving portion 111. When the first bending member 1211 and the second bending member 1212 approach each other to a first position, the second bending member 1212 fixes the welding strip 212 to the second receiving portion 112, the first bending member 1211 is located at the same height as the battery piece 211 or slightly higher than the battery piece 211, and the first bending member 1211 and the second bending member 1212 are returned to the initial positions after the first bending member 1211 and the second bending member 1212 are held at the first position for a certain period of time. It should be noted that, at this time, the first portion of the solder strip 212 may be pressed on the battery sheet 211 by using a pressing net, when the first bending member 1211 and the second bending member 1212 are located at the first position, the first bending member 1211 and the pressing net cooperate to shape one end of the bent portion of the solder strip 212, and the second bending member 1212 and the second receiving portion 112 cooperate to shape the other end of the bent portion of the solder strip 212, so as to finally realize the bending of the solder strip 212.

The number of the first bending member 1211 and the second bending member 1212 may be only one, and the bending surfaces of the first bending member 1211 and the second bending member 1212 extend along the second horizontal direction, so as to realize simultaneous bending of the group of solder ribbons 212 and ensure the bending efficiency; or, the number of the first bending members 1211 and the number of the second bending members 1212 are both plural, one first bending member 1211 is disposed corresponding to one second bending member 1212, and one group of the first bending members 1211 and the second bending members 1212 are bent corresponding to one welding strip 212, at this time, a group of welding strips 212 can be bent at the same time by using plural groups of the first bending members 1211 and the second bending members 1212, so as to ensure the bending efficiency. Of course, the possibility of bending the solder strip 212 one by one is not excluded.

In some embodiments, referring to fig. 4, 6 and 7, the bending mechanism 12 further includes a first positioning assembly 122 located on the upper side of the second receiving portion 112, the first positioning assembly 122 includes a first driving portion 1221 and a first clamping portion, and the first driving portion 1221 is connected to the first clamping portion and used for driving the first clamping portion to clamp or release the solder strip 212 located on the second receiving portion 112.

In actual operation, usually, the first portion of the solder strip 212 is pressed against the upper surface of the battery piece 211 by the pressing net to maintain the stable structure of the solder strip 212 and the battery piece 211, and the second portion of the solder strip 212 is in an unconnected state, and the second portion of the solder strip 212 is fixed to the second receiving portion 112 by the first clamping portion of the first positioning assembly 122, so that the second portion of the solder strip 212 is prevented from being displaced when the solder strip 212 is bent, and the relative position of the second portion of the solder strip 212 is inaccurate when the second portion of the solder strip 212 is connected with the lower surface of the battery piece 211 of another structural unit 21, thereby causing a quality problem of a finished product.

In specific embodiments, referring to fig. 6 and 7, the first clamping portion includes a mounting frame, a clamping jaw and a clamping head, the clamping jaw includes two clamping blocks and a first elastic member 1221e, the middle portion of each clamping block is rotatably connected to the mounting frame, the lower ends of the two clamping blocks form a clamping opening capable of clamping or loosening the welding strip 212, and the first elastic member 1221e connects the two clamping blocks; the clamping head is connected with the first driving part 1221, the first driving part 1221 is used for driving the clamping head to lift, the clamping head is provided with a clamping groove with a downward opening, the caliber of the clamping groove is gradually reduced from the opening end of the clamping groove to the bottom of the clamping groove, and at least part of the upper ends of the two clamping blocks are clamped in the clamping groove; when the chuck descends, the clamping groove descends relative to the two clamping blocks and can enable the two accelerated upper ends to approach each other so as to open the clamping opening; the first elastic member 1221e serves to provide an elastic force for closing the nip to the two clamping blocks when the chuck is raised.

In the time of actual operation, before the area 212 is welded in the centre gripping, first drive portion 1221 drive chuck descends, the in-process that the chuck descends, the relative draw-in groove in upper end of two clamp splice moves towards the tank bottom of draw-in groove from the open end of draw-in groove, because the bore of draw-in groove tank bottom is less than the bore of draw-in groove open end, consequently along with the decline of chuck, the upper end of two clamp splice is close to gradually, and then make the lower extreme of two clamp splice keep away from gradually, thereby open the nip, make to weld area 212 can be in the nip, first elastic component 1221e takes place deformation along with the change of distance between two clamp splice gradually this moment. When the area 212 is welded in needs centre gripping, first drive division 1221 drive chuck rises, and the in-process that the chuck rises, the relative draw-in groove in upper end of two clamp splice moves from the tank bottom of draw-in groove towards the open end of draw-in groove, and the draw-in groove releases the upper end of two clamp splice gradually this moment, and first elastic component 1221e is because of the elastic force that resumes deformation production for the upper end of two clamp splice is kept away from gradually, and the lower extreme of two clamp splice is drawn close gradually, and then closed clamp mouth, area 212 is welded in the centre gripping.

It will be appreciated that the axes of rotation of the two clamping blocks are parallel to the first horizontal direction so that the jaws clamp or unclamp the solder strip 212 across the width of the solder strip 212.

The first elastic member 1221e may be connected to the upper ends of the two clamping blocks, or connected to the lower ends of the two clamping blocks. When the first elastic member 1221e is coupled to the upper ends of the two clamping blocks, the first elastic member 1221e is compressed when the collet descends, and the first elastic member 1221e generates a pushing force to move the upper ends of the two collets away from each other when the collet ascends. When the first elastic member 1221e is coupled to the lower ends of the two clamping blocks, the first elastic member 1221e is stretched when the chuck is lowered, and the first elastic member 1221e generates a tensile force when the chuck is raised so that the lower ends of the two chucks approach each other.

The first elastic member 1221e may be a spring, or a member with elasticity such as rubber.

It is understood that the clamping block is rotatably connected to the mounting frame through a rotating shaft, and the rotating shaft can be arranged in a conventional manner, and is not limited herein.

Furthermore, the number of the clamping jaws is multiple, the clamping jaws are sequentially arranged on the mounting frame along the second horizontal direction, the chuck is provided with a plurality of clamping grooves, and the upper end of one clamping jaw is correspondingly clamped in one clamping groove. During actual operation, the first positioning assembly 122 can simultaneously complete clamping of each solder strip 212 in a group of solder strips 212, so that simultaneous positioning and simultaneous bending of a group of solder strips 212 are facilitated, and bending efficiency is improved.

The mounting bracket can move synchronously with the bending piece 121 (the second bending piece 1212) on the upper side of the receiving platform 11, and when the second bending piece 1212 reaches the first position, the mounting bracket moves to the working position where the solder strip 212 on the second receiving portion 112 is located in the clamping opening, and the clamping opening is controlled to close to clamp the solder strip 212. The mounting bracket is also independently movable and is controlled to move independently to an operative position prior to bending the solder strip 212 so that the solder strip 212 is positioned within the nip and the nip is controlled to close and grip the solder strip 212.

In specific embodiments, referring to fig. 6 and 7, the first driving part 1221 includes a first driving member 1221a, a first roller 1221b, and a first connecting block 1221c, the first roller 1221b is disposed at an output end of the first driving member 1221a, the first connecting block 1221c has a first inclined slot 1221d of the first connecting block 1221c, an extending direction of the first inclined slot 1221d is disposed at an acute angle to the vertical direction, and the first roller 1221b is disposed in the first inclined slot 1221 d; when the first driving member 1221a drives the first roller 1221b to move along a second horizontal direction perpendicular to the first horizontal direction, the first roller 1221b drives the first chute 1221d to move in the vertical direction, so that the first connecting block 1221c moves up and down, and the chuck is disposed on the first connecting block 1221 c.

In practical operation, when the first driving member 1221a drives the first roller 1221b to move along the second horizontal direction, because the first roller 1221b moves horizontally along the first chute 1221d, and the position of the first roller 1221b in the vertical direction is unchanged, the first roller 1221b can reversely push the first chute 1221d to move in the vertical direction during movement, so that the first connecting block 1221c is lifted, and the chuck on the first connecting block 1221c is driven to lift. This converts the horizontal driving of the first driving member 1221a into the vertical movement of the first link block 1221c through the first inclined groove 1221d and the first roller 1221b, contributing to a reduction in the vertical dimension of the entire apparatus.

It is understood that the first inclined groove 1221d is recessed on the first connection block 1221c in the first horizontal direction, and may or may not penetrate through the first connection block 1221 c.

Further, the first connection block 1221c is provided on a first rail extending vertically. Because first chute 1221d is the slope setting, when first gyro wheel 1221b horizontal migration, first chute 1221d can cooperate the motion of first gyro wheel 1221b in the oblique motion of vertical plane, so first link 1221c can all produce the displacement at horizontal direction and vertical direction. In practical operation, the first connecting block 1221c is limited to move only in the vertical direction by the first guide rail, so that improper clamping of the solder strip 212 caused by clamping mouth displacement of the clamping head is avoided.

In other embodiments, the first connection block 1221c may be displaced only in the vertical direction by other structures, which is not limited herein.

The first driving member 1221a may be a linear motor or a telescopic cylinder. Preferably, the first roller 1221b is partially capable of rolling along the first inclined groove 1221d to reduce friction between the first roller 1221b and the first inclined groove 1221d, thereby improving smoothness of movement.

In some embodiments, referring to fig. 4 and 5, the bending mechanism 12 further includes a second positioning assembly 123, the second positioning assembly 123 is disposed on the upper side of the receiving platform 11 and is disposed near the bending member 121 on the upper side of the receiving platform 11, and the second positioning assembly 123 includes a second clamping portion 1231, and the second clamping portion 1231 can limit the movement of the welding strip 212 when the two bending members 121 are located at the first position. Thus, when the two bending members 121 bend the solder strip 212, the second clamping portions 1231 limit the solder strip 212 near the bending members 121, so as to facilitate bending and ensure that the bending members 121 are bent at the correct positions of the solder strip 212.

Preferably, the second positioning assembly 123 is located on a side of the second bending member 1212 facing away from the first receiving portion 111, and the second clamping portion 1231 is used for fixing the solder strip 212 to the second receiving portion 112. In actual operation, when the two bending members 121 are located at the first position, the second clamping portion 1231 is already lowered onto the second receiving portion 112, and the solder strip 212 is fixed on the second receiving portion 112, so that the solder strip 212 can be fixed by the second clamping portion 1231 and the second receiving portion 112, which further helps to prevent the second portion of the solder strip 212 from being displaced.

Further, the second clamping portion 1231 is in elastic contact with the second receiving portion 112, so that the second clamping portion 1231 can be prevented from damaging the solder strip 212 during rigid contact. The second clamping portion 1231 may be elastically contacted with the second receiving portion 112 as long as the installation form of the second clamping portion is a vertical elastic installation form, and the specific structure is not limited herein.

In one embodiment, the second clamping portion 1231 comprises a latch, and one end of the latch facing the second receiving portion 112 has an inverted V-shaped notch. In practice, the notches may be used to limit the displacement of the solder strip 212. Of course, the second clamping portion 1231 may have the same structure as the first clamping portion, or may be directly pressed against the solder ribbon 212 by a pressing block.

It is to be understood that the number of the second clamping portions 1231 is plural, a plurality of the second clamping portions 1231 are arranged at intervals in the second horizontal direction, and one second clamping portion 1231 is used for restraining one welding strip 212.

In the embodiment, the second positioning assembly 123 moves synchronously with the bending member 121 on the upper side of the receiving platform 11. In actual operation, when the two bending pieces 121 move to the first position, the second positioning assembly 123 already limits the displacement of the welding strip 212, which not only helps to simplify the driving structure, but also simplifies the motion control of the second positioning assembly 123.

It is understood that the bending mechanism 12 further includes a second driving portion 1232, and the second driving portion 1232 is connected to both the second positioning assembly 123 and the second bending member 1212, and drives the second positioning assembly 123 and the second bending member 1212 to move synchronously. The second driving portion 1232 may be directly an air cylinder or a linear motor, and the air cylinder or the linear motor directly drives the second positioning assembly 123 and the second bending member 1212 to move vertically.

Preferably, referring to fig. 5, the second driving part 1232 has the same structure as the first driving part 1221, and includes a second driving part 1232a, a second connecting block 1232b, and a second roller 1232d, the second roller 1232d is disposed at an output end of the second driving part 1232a, the second connecting block 1232b has a second inclined groove 1232c thereon, an extending direction of the second inclined groove 1232c is arranged at an acute angle with the vertical direction, the second roller 1232d is disposed in the second inclined groove 1232c, when the second driving part 1232a drives the second roller 1232d to move along the second horizontal direction, the second roller 1232d drives the second inclined groove 1232c to displace in the vertical direction, so that the second connecting block 1232b goes up and down, and the second clamping part and the second bending part 1212 are both disposed on the second connecting block 1232 b.

In actual operation, the transmission process of the second driving part 1232 is similar to the transmission process of the first driving part 1221, when the second driving part 1232a drives the second roller 1232d to move along the second horizontal direction, because the second roller 1232d moves horizontally along the second inclined groove 1232c, and the position of the second roller 1232d in the vertical direction is not changed, the second roller 1232d can reversely push the second inclined groove 1232c to displace in the vertical direction during movement, so that the second connecting block 1232b goes up and down, and further the second clamping part and the second bending part 1212 on the second connecting block 1232b go up and down. The horizontal driving of the second driving member 1232a is thus converted into the vertical movement of the second connecting block 1232b through the second slant groove 1232c and the second roller 1232d, contributing to the reduction of the vertical size of the entire apparatus.

The second driving member 1232a may be a cylinder or a linear motor.

Further, the second connecting block 1232b is disposed on the second guide rail extending vertically. In practical operation, the second connecting block 1232b is limited to move only vertically by the second guide rail, so that the second clamping portion 1231 and the second bending member 1212 are prevented from being dislocated.

Alternatively, the mounting frame is fixed to the second connecting block 1232b, so that the mounting frame, the second clamping portion and the second bending member 1212 are lifted and lowered synchronously, thereby simplifying the overall structure of the material distribution device.

In some embodiments, referring to fig. 5, the bending mechanism 12 further includes a mounting block 124, one bending member 121 of the two bending members 121 is elastically mounted on the mounting block 124, and when the mounting block 124 is controlled to move vertically, the bending member 121 mounted on the mounting block 124 is close to or away from the other bending member 121 along the bending hole 113.

In actual operation, when the two bending members 121 move to the first position, the bending member 121 mounted on the mounting block 124 elastically contacts with the other bending member 121, so that damage to the respective bending surfaces when the two bending members 121 are in rigid contact can be avoided.

In a specific embodiment, referring to fig. 5, the bending mechanism 12 further includes a second elastic member 125 and a stopper 126, a vertically arranged mounting hole is provided on the mounting block 124, the second elastic member 125 is provided in the mounting hole, one end of the bending member 121 located on the mounting block 124, which is away from the other bending member 121, penetrates through the mounting hole and the second elastic member 125 and then is sleeved with the stopper 126, the second elastic member 125 is limited between the bending member 121 and the mounting hole, and the maximum size of the stopper 126 is greater than the aperture of the mounting hole.

In practice, when the bending member 121 mounted on the mounting block 124 contacts the other bending member 121, the bending member 121 retreats and compresses the second elastic member 125 to avoid a positive rigid contact with the other bending member 121. When the two bending members 121 are away from the first position, the bending members 121 are restored to the initial position by the elastic force generated by the second elastic member 125.

Of course, in other embodiments, the bending member 121 on the mounting plate can be elastically connected to the mounting plate in other manners.

Preferably, the second bending member 1212 is mounted on the mounting block 124, that is, the mounting block 124 is located on the upper side of the receiving platform 11, and the mounting block 124 is mounted on the second connecting block 1232 b. This helps simplify the structure of the bending mechanism 12.

In some embodiments, referring to fig. 8, 9 and 10, the number of the receiving platforms 11 is multiple, the multiple receiving platforms 11 are sequentially arranged along the first horizontal direction, the distributing device further includes a variable-pitch driving assembly 13, and the variable-pitch driving assembly 13 is configured to drive two adjacent receiving platforms 11 to approach each other along the first horizontal direction so as to move the multiple receiving platforms 11 to the matching position; in the mating position, the first receiving portion 111 of the jth receiving platform 11 is located above the second receiving portion 112 of the (j + 1) th receiving platform 11, so that the lower surface of the battery piece 211 located on the first receiving portion 111 of the jth receiving platform 11 is located above the solder strip 212 on the second receiving portion 112 of the (j + 1) th receiving platform 11, and j is a positive integer.

In actual operation, after the positions of the solder strips 212 and the battery pieces 211 of each receiving platform 11 are arranged, the variable-pitch driving assembly 13 drives each receiving platform 11 to approach each other, so that the battery pieces 211 of two adjacent receiving platforms 11, the lower surfaces of which are in the unconnected state, are located on the upper side of the second part of the solder strips 212, the second part of which is in the unconnected state, and the structural units 21 arranged on each receiving platform 11 are sequentially arranged to construct the string unit 20 comprising a plurality of structural units 21, so that the welding efficiency of the string welding machine is improved.

In the embodiment, referring to fig. 11, the pitch driving assembly 13 includes a plurality of pitch driving members 131, one receiving platform 11 of the plurality of receiving platforms 11 is fixedly disposed, one pitch driving member 131 is connected to each other receiving platform 11 of the plurality of receiving platforms 11, and each pitch driving member 131 is used for driving the connected receiving platform 11 to move to the matching position. At this time, one of the receiving platforms 11 is fixedly arranged, which is helpful for reducing the number of driving mechanisms, reducing the manufacturing cost of the distributing device and facilitating the control.

Further, referring to fig. 11, the pitch drive assembly 13 further includes a plurality of support plates 132, one pitch drive member 131 is connected to one support plate 132, and one support plate 132 is correspondingly provided with one receiving platform 11. In actual operation, the pitch drive member 131 drives the support plate 132 to move so as to drive the receiving platforms 11 to move, so that the receiving platforms 11 approach each other and move to the matching position.

The pitch drive 131 may be a linear motor or an air cylinder.

In some embodiments, referring to fig. 3, the first receiving portion 111 is provided with an air hole 1111, the air hole 1111 is communicated with a negative pressure device, and an adsorption force generated by the negative pressure device acts on the battery sheet 211 on the first receiving portion 111 through the air hole 1111, so that the battery sheet 211 can be stably supported on the first receiving portion 111.

Further, the second receiving portion 112 is provided with a groove 1121 extending along the first horizontal direction. When the second portion of the solder ribbon 212 is supported by the second receiving portion 112, the second portion of the solder ribbon 212 is located in the recess 1121, and the positive direction of downward swing is guided by the recess 1121 to avoid the second portion of the solder ribbon 212 from being dislocated. It is understood that the number of the grooves 1121 may be greater than or equal to the number of the solder strips 212 in one structural unit 21 to adapt to the construction of different grid numbers of the string units 20 (the grid number is the number of the solder strips 212 in the structural unit 21). In addition, the arrangement intervals of the grooves 1121 are arranged according to the actual cell piece 211 structure, and are not limited herein.

Further, an end of the groove 1121, which is away from the first receiving portion 111, is flared, and a width of a side of the groove 1121, which is away from the first receiving portion 111, is greater than a width of a side of the groove which is close to the first receiving portion 111, so as to facilitate guiding the welding strip 212 into the groove 1121.

Further, the first receiving portion 111 includes a plurality of receiving bars 1112 arranged at intervals along the second horizontal direction, the second receiving portion 112 has a plurality of avoiding grooves 1122 thereon, and one avoiding groove 1122 is correspondingly located in a direction opposite to the extending direction of one receiving bar 1112. In actual operation, in two adjacent receiving platforms 11, the receiving strip 1112 of the first receiving portion 111 of one receiving platform 11 can be inserted into the avoiding groove 1122 of the other receiving platform 11, so that the lower surface of the battery piece 211 is located on the upper side of the adjacent solder strip 212. It is understood that the receiving strip 1112 is used for holding the battery sheet 211, and the receiving strip 1112 may be provided with air holes 1111.

In the embodiment, the receiving platform 11 further has a long groove 114 extending along the first horizontal direction, and the long groove 114 penetrates through the receiving surface of the receiving platform 11. In actual operation, the transport device may support the string unit 20 while moving from the lower side of the long groove 114 to the upper side of the long groove 114, so as to transport the string unit 20. Alternatively, the conveying device may support the press wire and convey the connected string unit 20 together. Wherein, the transmission device comprises a long rod which is used for supporting and transmitting the string unit 20, and the structure is simple and the cost is low.

Further, the first receiving portion 112 has a space-saving portion 1113 communicating with the long groove 114, and the space-saving portion 1113 penetrates the first receiving portion 112. The clearance 1113 is provided not only to allow the conveyor to move, but also to expose the lower surface of the battery sheet 211 on the first receiving portion 112 to the second portion of the solder strip 212 on the adjacent receiving platform 11 through the clearance 1113 when the receiving platforms 11 are mated, so as to facilitate the construction of the string unit 20.

In some embodiments, a bending mechanism 12 may be disposed corresponding to each receiving platform 11, and the welding strip 212 on each receiving platform 11 is bent by using the corresponding bending mechanism 12, or a bending mechanism 12 may be disposed corresponding to a plurality of receiving platforms 11, and the bending mechanism 12 may move to each receiving platform 11 to bend the welding strip 212, or each receiving platform 11 moves to the bending mechanism 12, so that the bending mechanism 12 bends the welding strip 212 thereon.

The material distribution device provided in the embodiment of the application can bend the welding strip 212 through the bending mechanism 12 to improve the stability of the structure of the string unit 20, and also focuses the bending process on the material distribution device, so that the welding strip 212 is bent after the welding strip 212 and the battery piece 211 are arranged at the corresponding positions, and the serial welding machine is not required to have high operation precision when the welding strip 212 is arranged, the position relation between the bent part of the welding strip 212 and the battery piece 211 can be accurate, and the manufacturing cost of the serial welding machine can be reduced.

In addition, an embodiment of the present application further provides a series welding machine, which includes a welding device, a conveying device and the material distribution device provided in any of the above embodiments, wherein the conveying device is used for conveying the series unit 20 located on the receiving platform 11 to the welding device, and the welding device is used for welding the welding strips 212 and the battery sheets 211 in the series unit 20.

Since the series welding machine includes the material distribution device provided in any of the above embodiments, it has all the above beneficial effects, which are not described herein again.

Wherein, conveyer can adopt transport mechanism such as conveyer belt, manipulator, welding set can adopt prior art, does not put forward the restriction here.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A material distribution device for arranging solder strips (212) and battery plates (211) in a first horizontal direction to form a string unit (20), the solder strips (212) being divided into a first portion and a second portion along their length, the first portion of the solder strips (212) overlapping the upper surfaces of the battery plates (211), the material distribution device comprising:

the bearing platform (11) is provided with a first bearing part (111), a second bearing part (112) and a bending hole (113) which is arranged between the first bearing part (111) and the second bearing part (112) along the vertical direction, the first bearing part (111) is used for bearing the battery piece (211), and the second bearing part (112) is used for bearing the second part of the welding strip (212); and

the bending mechanism (12) comprises two bending pieces (121) which are arranged on two vertical sides of the bearing platform (11), the two bending pieces (121) are configured to be controlled to approach or depart from each other along the bending hole (113), and when the two bending pieces (121) approach to each other to a first position, the two bending pieces can be matched to bend the welding strip (212).

2. Cloth device according to claim 1, characterized in that said bending mechanism (12) further comprises a first positioning assembly (122) located on the upper side of said second receiving portion (112);

the first positioning assembly (122) comprises a first driving portion (1221) and a first clamping portion, and the first driving portion (1221) is connected with the first clamping portion and used for driving the first clamping portion to clamp or release the welding strip (212) on the second bearing portion (112).

3. The distribution device according to claim 2, characterized in that the first clamping portion comprises a mounting frame, a clamping jaw and a clamping head;

the clamping jaw comprises two clamping blocks and a first elastic piece (1221e), the middle part of each clamping block is rotatably connected to the mounting frame, the lower ends of the two clamping blocks form a clamping opening capable of clamping or loosening the welding strip (212), and the first elastic piece (1221e) is connected with the two clamping blocks;

the chuck is connected with the first driving part (1221), the first driving part (1221) is used for driving the chuck to lift, the chuck is provided with a clamping groove with a downward opening, the caliber of the clamping groove is gradually reduced from the opening end of the clamping groove to the bottom of the clamping groove, and at least part of the upper ends of the two clamping blocks are clamped in the clamping groove;

when the chuck descends, the clamping groove descends relative to the two clamping blocks and can enable the upper ends of the two clamping blocks to approach each other so as to open the clamping opening; when the clamping head is lifted, the first elastic piece (1221e) is used for providing elastic force for closing the clamping opening for the two clamping blocks.

4. The material distribution device according to claim 3, wherein the first driving portion (1221) comprises a first driving member (1221a), a first roller (1221b) and a first connecting block (1221c), the first roller (1221b) is disposed at an output end of the first driving member (1221a), the first connecting block (1221c) has a first inclined groove (1221d) formed thereon, an extending direction of the first inclined groove (1221d) is arranged at an acute angle to a vertical direction, and the first roller (1221b) is disposed in the first inclined groove (1221 d);

when the first driving piece (1221a) drives the first roller (1221b) to move along a second horizontal direction perpendicular to the first horizontal direction, the first roller (1221b) drives the first chute (1221d) to displace in the vertical direction, so that the first connecting block (1221c) is lifted;

the collet is disposed on the first connection block (1221 c).

5. Distributing device according to any one of claims 1 to 4, characterized in that the bending mechanism (12) further comprises a second positioning element (123), the second positioning element (123) being arranged on the upper side of the receiving platform (11) and being arranged close to the bending member (121) on the upper side of the receiving platform (11);

the second positioning assembly (123) comprises a second clamping part (1231), and when the two bending pieces (121) are located at the first position, the second clamping part (1231) can limit the movement of the welding strip (212).

6. Distributing device according to claim 5, characterized in that said second positioning means (123) move synchronously with said bending element (121) on the upper side of said receiving platform (11).

7. Cloth device according to any one of claims 1 to 4, characterized in that said bending mechanism (12) further comprises a mounting block (124), one (121) of said two bending members (121) being elastically mounted on said mounting block (124);

when the mounting block (124) is controlled to move vertically, the bending piece (121) mounted on the mounting block (124) is close to or far away from the other bending piece (121) along the bending hole (113).

8. Distributing device according to any one of claims 1 to 4, characterized in that the number of said receiving platforms (11) is plural, a plurality of said receiving platforms (11) being arranged one after the other in said first horizontal direction;

the distributing device further comprises a variable-pitch driving assembly (13), wherein the variable-pitch driving assembly (13) is configured to drive two adjacent bearing platforms (11) to mutually approach along the first horizontal direction so as to enable a plurality of the bearing platforms (11) to move to a matching position;

when in the matching position, the first receiving part (111) of the jth receiving platform (11) is positioned above the second receiving part (112) of the jth +1 receiving platform (11), so that the lower surface of the battery piece (211) on the first receiving part (111) of the jth receiving platform (11) is positioned on the upper side of the solder strip (212) on the second receiving part (112) of the jth +1 receiving platform (11), and j is a positive integer.

9. Cloth device according to claim 8, characterized in that said pitch drive assembly (13) comprises a plurality of pitch drives (131);

one of the bearing platforms (11) is fixedly arranged, the other bearing platforms (11) are connected with one variable-pitch driving piece (131), and each variable-pitch driving piece (131) is used for driving the connected bearing platforms (11) to move to the matching position.

10. A stringer comprising a welding device, a conveying device for conveying the string unit (20) on the receiving platform (11) to the welding device, and a distributing device according to any one of claims 1 to 9 for welding the welding strips (212) and the battery sheets (211) in the string unit (20).

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