CN218341309U - Weld and take draw gear and battery cluster to reprocess device - Google Patents

Abstract

The utility model provides a weld and take draw gear and battery cluster to reprocess device, wherein weld and take draw gear to include moving mechanism, mounting panel and clamping jaw subassembly, wherein: the mounting plate is connected to a movable part of the moving mechanism, the clamping jaw assembly is mounted on the mounting plate, and the moving mechanism is at least used for driving the clamping jaw assembly to move horizontally and lift; the clamping jaw assembly comprises a plurality of clamping jaws, each clamping jaw is configured to clamp, clamp and release a welding strip, and when the clamping jaws clamp the corresponding welding strip, the welding strip can slide in the clamping jaws. The utility model discloses a weld and take draw gear, its clamping jaw assembly can implement to weld the centre gripping in area, press from both sides tightly and release, and is very special, when the clamping jaw assembly centre gripping welds the area, welds the area and can slide in clamping jaw assembly. The utility model discloses a weld and take draw gear is fit for implementing and welds the accuracy of taking to flagging unsolder and pull to promote battery cluster and reprocess efficiency.

Description

Weld and take draw gear and battery cluster to reprocess device

Technical Field

The utility model belongs to the technical field of battery production and specifically relates to a weld and take draw gear and battery cluster to reprocess device.

Background

For the battery string with the defective battery piece, one of the repair methods is to unweld the defective battery piece and the welding strip welded on the defective battery piece, pull the unwelded welding strip to the two sides to separate the unwelded welding strip from the defective battery piece, and then pull the unwelded welding strip again to the designated position of the replacement battery piece for welding. Because the unsoldered solder strip can sag after being pulled open towards two sides, the sagging unsoldered solder strip is difficult to accurately draw by the conventional solder strip drawing mechanism, and inconvenience is brought to automatic repair.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical defect that current solder strip draw gear exists, the utility model discloses the first aspect provides a solder strip draw gear, its technical scheme as follows:

the utility model provides a solder strip draw gear, includes moving mechanism, mounting panel and clamping jaw assembly, wherein:

the mounting plate is connected to a movable part of the moving mechanism, the clamping jaw assembly is mounted on the mounting plate, and the moving mechanism is at least used for driving the clamping jaw assembly to translate and lift;

the clamping jaw assembly comprises a plurality of clamping jaws, each clamping jaw is configured to clamp, clamp and release a welding strip, and when the clamping jaws clamp the corresponding welding strip, the welding strip can slide in the clamping jaws.

The utility model discloses a weld and take draw gear, its clamping jaw assembly can implement to weld the centre gripping in area, press from both sides tightly and release, and is very special, when the clamping jaw assembly centre gripping welds the area, welds the area and can slide in clamping jaw assembly. The utility model discloses a weld and take draw gear is fit for implementing the drawing to flagging unwelded solder strip, and specific traction process is as follows: firstly, controlling the opening of each clamping jaw, and controlling each clamping jaw to move to the root of the desoldering welding strip by a moving mechanism; each clamping jaw clamps a corresponding desoldering welding strip from the root position, then, the moving mechanism controls each clamping jaw to move horizontally to the end part of the desoldering welding strip, and finally, the end part of the corresponding desoldering welding strip is clamped; and finally, controlling each clamping jaw by the moving mechanism to re-draw the desoldering welding strip to a specified position for replacing the battery piece, and then welding. The utility model discloses a weld and take draw gear can realize pulling the flagging accuracy of desoldering welding strip to promote battery cluster and reprocess efficiency.

In some embodiments, the jaw assembly comprises a fixed jaw, a movable jaw, and a movable jaw drive mechanism, wherein: the fixed clamping plate is fixedly arranged on the mounting plate, a plurality of fixed chucks extending in the vertical direction are arranged on the fixed clamping plate, and the movable clamping plate driving mechanism is arranged on the fixed clamping plate; the movable clamping plate is connected to the fixed clamping plate in a sliding mode and is connected with the driving end of the movable clamping plate driving mechanism, a plurality of movable chucks extending in the vertical direction are arranged on the movable clamping plate, the movable chucks and the fixed chucks are arranged at intervals, and the adjacent movable chucks and the fixed chucks form a clamping jaw; the movable clamping plate driving mechanism is used for driving the movable clamping plate to slide relative to the fixed clamping plate, so that the movable clamping head and the corresponding fixed clamping head are semi-closed, completely closed or opened, and the movable clamping head and the corresponding fixed clamping head clamp the welding strip when being semi-closed; clamping the welding strip when the movable chuck and the corresponding fixed chuck are completely closed; and releasing the welding strip when the movable chuck and the corresponding fixed chuck are opened.

The clamping jaw assembly is simple in structure and convenient to control, the movable clamping plate is driven by the movable clamping plate driving mechanism to move horizontally relative to the fixed clamping plate, synchronous clamping, clamping and releasing of a plurality of welding strips are achieved, and therefore the traction efficiency and traction consistency of the welding strips for desoldering are guaranteed.

In some embodiments, the lower end of the fixed chuck or the movable chuck is provided with a supporting part extending along the horizontal direction, and when the movable chuck and the corresponding fixed chuck clamp the welding strip, the supporting part supports and limits the welding strip.

The supporting part is arranged at the lower end of the fixed chuck or the movable chuck, so that the supporting limit of the welding strip is realized, and the clamping jaw is prevented from falling out of the welding strip clamped between the fixed chuck and the movable chuck in the clamping process.

In some embodiments, the movable clamping plate driving mechanism comprises a first driving air cylinder and a transmission block, wherein the first driving air cylinder is installed on the fixed clamping plate, the transmission block is connected with the driving end of the first driving air cylinder, the movable clamping plate is connected with the transmission block, and the first driving air cylinder drives the transmission block to move so as to drive the movable clamping plate to slide relative to the fixed clamping plate; the movable clamping plate driving mechanism further comprises a limiting mechanism, the limiting mechanism comprises a second driving air cylinder and a limiting block, the second driving air cylinder is installed on the fixed clamping plate, the limiting block is installed on the fixed clamping plate in a sliding mode and connected with the driving end of the second driving air cylinder, and the second driving air cylinder is used for driving the limiting block to slide towards or away from the transmission block so as to position the limiting block to a preset limiting position or an avoidance position; when the limiting block is located at the limiting position, the first driving cylinder drives the transmission block to slide towards the limiting block, and the transmission block can abut against the limiting block, so that the movable chuck and the corresponding fixed chuck are semi-closed; when the limiting block is located at the avoiding position and the first driving cylinder drives the transmission block to slide towards the limiting block, the movable chuck and the corresponding fixed chuck are completely closed.

Through setting up movable splint actuating mechanism, movable splint actuating mechanism has realized the stable drive to movable splint, and stop gear's setting has realized the adjustment to the translation extreme position of transmission piece to make movable chuck and fixed chuck can realize half closed and the switching of closure state.

In some embodiments, the clamping jaw assembly further comprises a first side adjusting block and a second side adjusting block which are arranged on the fixed clamping plate, wherein the first side adjusting block is positioned at the first side of the moving path of the limiting block and used for limiting the sliding of the limiting block at the first side of the limiting block; the second side adjusting block is located on the second side of the moving path of the limiting block and used for limiting the limiting block in a sliding mode on the second side of the limiting block.

The first side adjusting block and the second side adjusting block are arranged on the fixed clamping plate, so that the limiting position and the avoiding position of the limiting block are positioned.

In some embodiments, the jaw assembly further comprises a solder strip hold down mechanism for pressing down on a solder strip held in each jaw to adjust the height of each solder strip to be uniform.

When the clamping jaws move to the root of the desoldering solder strip to clamp the solder strip, the heights of the solder strips in the clamping jaws may not be consistent. By controlling the descending of the welding strip pressing mechanism, the welding strips in the chucks can be pressed to the same height, and the accurate traction of the welding strips is further ensured.

In some embodiments, the solder strip pressing mechanism includes a pressing cylinder and a pressing plate, wherein the pressing cylinder is mounted on the movable clamp plate, the pressing plate is connected to the driving end of the pressing cylinder and located at the side of each clamping jaw, and when the pressing cylinder drives the pressing plate to descend, the pressing plate presses the solder strip clamped in each clamping jaw downwards.

The welding strip pressing mechanism is simple in structure, and the pressing cylinder controls the pressing plate to descend so as to press the welding strips in the clamping heads to the same height.

In some embodiments, the moving mechanism comprises a first moving mechanism, a second moving mechanism, and a lifting module, wherein: the second translation mechanism is connected to the movable part of the first translation mechanism, the lifting module is connected to the movable part of the second translation mechanism, and the mounting plate is connected to the movable part of the lifting module; the first translation mechanism is used for driving the clamping jaw assembly to translate along a first horizontal direction, the first horizontal direction is parallel to the extending direction of the welding strip, the second translation mechanism is used for driving the clamping jaw assembly to translate along a second horizontal direction, the second horizontal direction is perpendicular to the extending direction of the welding strip, and the lifting module is used for driving the clamping jaw assembly to lift.

Through the matching drive of the first translation mechanism, the second translation mechanism and the lifting module, the translation mechanism realizes the translation drive and the lifting drive of the clamping jaw assembly, thereby ensuring that the clamping jaw assembly can smoothly pull the desoldering welding strip.

In some embodiments, the first translation mechanism includes a base, a first slide rail, a first translation driving member, and a base plate, wherein: the first sliding rail is arranged on the base along a first horizontal direction, the first translation driving part is arranged on the base, the bottom plate is connected to the first sliding rail in a sliding mode and is connected with the driving end of the first translation driving part, and the first translation driving part is used for driving the bottom plate to slide along the first sliding rail; the second translation mechanism comprises a second slide rail, a second translation driving piece and a sliding support, wherein the second slide rail is arranged on the bottom plate along a second horizontal direction, the second translation driving piece is arranged on the bottom plate, the sliding support is connected to the second slide rail in a sliding mode and is connected with the driving end of the second translation driving piece, and the second translation driving piece is used for driving the sliding support to slide along the second slide rail; the lifting module is arranged on the sliding support.

Through setting up first translation mechanism, second translation mechanism, realized between second translation mechanism and the first translation mechanism, the transmission between lifting module and the second translation mechanism is connected, finally realized the position control of clamping jaw subassembly in horizontal direction and vertical direction.

In some embodiments, the lifting module comprises a lifting driving member and a driving shaft, the lifting driving member is fixed on the sliding support, the driving shaft is vertically arranged, the lower end of the driving shaft penetrates through the sliding support in a sliding manner, and the upper end of the driving shaft is fixedly connected with one end of the mounting plate; the driving shaft is provided with a threaded section, a screw nut is assembled on the threaded section, the screw nut is rotatably connected with the sliding support, and the driving end of the lifting driving piece is connected with the screw nut and is used for driving the screw nut to rotate so as to drive the mounting plate to lift; the moving mechanism further comprises a rotary driving piece and a spline nut, the rotary driving piece is fixed on the sliding support, a spline section is further arranged on the driving shaft, the spline nut is assembled on the spline section of the driving shaft, and a driving end of the rotary driving piece is connected with the spline nut and used for driving the spline nut to rotate so as to drive the mounting plate to rotate in the horizontal direction.

When the lifting driving piece drives the screw rod nut to rotate, the driving shaft is driven to move up and down, so that the mounting plate is driven to lift; when rotating through rotary driving piece drive spline nut, it is rotatory to drive the drive shaft to the drive mounting panel rotates on the horizontal direction, so that mounting panel, clamping jaw subassembly switch to dodging the position, and the lift and the rotation of mounting panel all drive through the drive shaft, and the structure is compacter, saves occupation space.

The utility model also provides a device is reprocessed to battery cluster, it is including reprocessing platform, at least one as above-mentioned arbitrary one weld and take draw gear, heat welding mechanism and battery piece feed mechanism, wherein:

the repairing platform is used for bearing the battery string to be repaired, and is matched with the heating welding mechanism to desolder and separate a defective battery piece in the battery string to be repaired and a welding strip welded on the defective battery piece to obtain a first disassembled battery string and a second disassembled battery string;

the battery piece feeding mechanism is used for feeding replacement battery pieces onto the repair platform to replace the defective battery pieces;

the welding strip traction device is used for dragging and stacking the desoldering welding strip of the first disassembled battery string and the desoldering welding strip of the second disassembled battery string to the specified position of the replaced battery piece;

and welding the stacked desoldering welding strips to the specified positions of the replacement battery pieces by the heating welding mechanism to obtain the repaired battery string.

Through reprocess platform, battery piece feeding mechanism, weld the cooperation that takes draw gear and add hot welding mechanism, the utility model discloses a battery string is reprocessed the device and has been realized treating the automation of the defect battery piece in the reprocess battery string and disassemble to replace battery piece automatic weld to the position that vacates after the defect battery piece is disassembled. In particular, the solder strip traction device realizes accurate traction of drooping desoldering solder strips, thereby further improving the repair efficiency of the battery string.

In some embodiments, the rework platform includes a mount, a middle carrier, a first side carrier and a second side carrier, wherein: the middle bearing table is fixedly arranged on the mounting seat, the first side bearing table is movably connected to the mounting seat and is positioned on the first side of the middle bearing table, and the first side bearing table is configured to be capable of moving towards or away from the middle bearing table in a translation mode; the second side bearing table is movably connected to the mounting seat and is positioned on the second side of the middle bearing table, and the second side bearing table is configured to be capable of translating towards or away from the middle bearing table; the first side carrier table and/or the second side carrier table are also configured to be capable of ascending and descending in a vertical direction; the middle bearing platform is used for bearing the defective battery piece or replacing the battery piece, the first side bearing platform is used for bearing the battery piece or the first disassembled battery string which is positioned on the first side of the defective battery piece, and the second side bearing platform is used for bearing the battery piece or the second disassembled battery string which is positioned on the second side of the defective battery piece.

On one hand, the repair platform can be matched with a heating welding mechanism to automatically disassemble defective battery pieces in the battery string to be repaired so as to obtain a first disassembled battery string and a second disassembled battery string; on the other hand for the repair platform can cooperate the solder strip draw gear with the desoldering solder strip of first disassembling battery cluster and the desoldering solder strip of second disassembling battery cluster pull and stack to the repair platform department of replacement battery piece.

In some embodiments, a first side welding strip straightening mechanism is arranged on a first side of the middle bearing table, and a second side welding strip straightening mechanism is arranged on a second side of the middle bearing table; the welding strip traction device is used for drawing and laying the desoldering welding strips of the first disassembled battery string on the middle bearing table, and the first side welding strip straightening mechanism is configured to clamp the desoldering welding strips of the first disassembled battery string on the first side; the second side weld ribbon straightening mechanism is configured to clamp the desoldering weld ribbon of the first disassembled battery string on the second side and move away from the intermediate carrier table to straighten the desoldering weld ribbon of the first disassembled battery string, and the replacement battery piece is laid on the desoldering weld ribbon of the straightened first disassembled battery string.

Set up the first side respectively through the first side and the second side at middle plummer and weld the area and straighten the mechanism and the second side welds the area and straightens the mechanism, realized laying the first clear weld who disassembles the battery cluster on middle plummer and weld the area and straighten, so, can guarantee to lay the clear weld who disassembles the battery cluster on middle plummer and weld the area and can cover on the grid line on the replacement battery piece accurately, avoid welding the crooked and skew grid line because of the clear weld, guarantee the repair quality of battery cluster.

Drawings

Fig. 1 is a schematic structural diagram of a solder strip pulling apparatus according to an embodiment of the present invention at a viewing angle;

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

fig. 3 is a schematic structural view of a jaw assembly in an embodiment of the present invention at a first viewing angle;

fig. 4 is a schematic view of a jaw assembly in an embodiment of the present invention at a second viewing angle;

fig. 5 is a schematic structural view of a fixing splint according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a movable clamp plate according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a jaw assembly in an embodiment of the present invention at a third viewing angle;

fig. 8 is a schematic structural view of a jaw assembly at a fourth viewing angle in an embodiment of the present invention;

fig. 9 is a schematic structural view of a battery string repairing apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a rework platform in an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an intermediate carrier stage according to an embodiment of the present invention at a first viewing angle;

fig. 12 is a schematic structural diagram of an intermediate carrier stage in an embodiment of the present invention at a second viewing angle;

FIG. 13 isbase:Sub>A cross-sectional view A-A of FIG. 12;

FIG. 14 is an enlarged view of a portion of FIG. 13;

fig. 15 is a schematic structural view of an intermediate carrier stage in an embodiment of the present invention at a third viewing angle;

FIG. 16 is a cross-sectional view B-B of FIG. 15;

fig. 17 is a schematic structural diagram of an intermediate carrier stage at a fourth viewing angle according to an embodiment of the present invention;

fig. 18 is an assembly schematic view of a heating welding mechanism and a pressure welding band assembly in an embodiment of the present invention;

fig. 19 is a schematic structural view of a pressure welding belt assembly in an embodiment of the present invention;

fig. 20 is a schematic structural view of a battery string repair device according to another embodiment of the present invention;

FIG. 21 is a schematic view of the mounting structure of the heat welding mechanism and the pressure welding tape assembly of the embodiment of FIG. 20;

fig. 22 is a schematic diagram of a disassembling process of the battery string according to an embodiment of the present invention;

the following reference numerals are included in fig. 1 to 22:

the solder strip traction device 10:

first translation mechanism 11:

a base 111, a first slide rail 112, a first translation driving member 113, and a bottom plate 114;

second translation mechanism 12:

a second slide rail 121, a second translational drive member 122, a slide bracket 123;

the lifting module 13:

a lifting driving member 131, a driving shaft 132, and a feed screw nut 133;

a rotary drive 14;

a spline nut 15;

a mounting plate 16;

the jaw assembly 17:

the clamping device comprises a fixed clamping plate 171, a fixed clamping head 172, a movable clamping plate 173, a movable clamping head 174, a first driving air cylinder 175, a transmission block 176, a second driving air cylinder 177, a limiting block 178, a connecting block 179 and a supporting part 1710;

a first side adjustment block 18;

a second side regulating block 19;

the solder ribbon hold-down mechanism 110:

a lower pressure cylinder 1101, a lower pressure plate 1102;

the repair platform 20:

a mounting base 21;

intermediate stage 22:

a bracket 221;

a load-bearing table 222;

a solder ribbon support plate 223;

a solder ribbon support plate lift mechanism 224;

a mount 225;

a connecting rod 226;

a first side bearing table 23;

a second side carrier table 24;

first side weld-band straightening mechanism 25:

third translation mechanism 251: a translation guide rail 2511, a translation drive unit 2512, and a base plate 2513;

first elevating mechanism 252: a lifting driving device 2521, a lifting plate 2522, and a support rod 2523;

solder ribbon clamping assembly 253:

a clamp mounting plate 254;

the clamp 255: a first clamping head 2551, a second clamping head 2552, a rotating shaft 2553 and a pressure spring 2554;

the clamp driving mechanism 256: the device comprises a pressing plate 2561, an oblique cam 2562, an oblique cam translation driving mechanism 2563, a follower 2564, a pressing piece 2565, a limit driving mechanism 2566 and a limit block 2567;

a second side weld tape straightening mechanism 26;

a heating welding mechanism 30;

pressure-welding belt assembly 40:

a second elevating mechanism 41;

third elevating mechanism 42: an outer cylinder 421 and an outer pressing pin mounting bracket 422;

a connecting plate 43;

a medial tucker 44;

an outer side tucker 45;

an inner presser pin mounting plate 46;

a shielding plate 47;

an air blowing port 48;

a second positioning camera 50;

a third positioning camera 60;

a cell feeding mechanism 70;

a mounting frame 80;

defective cell pieces 100, and a desoldering solder strip 200.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

In view of current weld take drive mechanism to be difficult to realize drawing flagging the accuracy of desoldering welding strip, the technical problem who brings inconvenience for automatic repair, the utility model provides a weld and take draw gear, as shown in FIG. 1, the utility model discloses a weld and take draw gear 10 includes moving mechanism, mounting panel 16 and clamping jaw subassembly 17, wherein:

the mounting plate 16 is connected on the movable part of moving mechanism, and clamping jaw assembly 17 is installed on mounting plate 16, and moving mechanism is used for driving clamping jaw assembly 17 at least to translate and go up and down.

The clamping jaw assembly 17 comprises a plurality of clamping jaws, each clamping jaw 17 is configured to clamp, clamp and release a welding strip, wherein when the clamping jaw clamps the corresponding welding strip, the welding strip can slide in the clamping jaw.

The utility model discloses a weld and take draw gear, the clamping jaw among its clamping jaw assembly 17 can also carry out the centre gripping to the welding area except can carrying out conventional clamp tight and release to the welding area, makes to weld and takes and can slide in the clamping jaw when by the centre gripping. Make the utility model discloses a weld and take draw gear 10 is particularly suitable for implementing and welds the drawing of taking to flagging unwelded, and its traction process to the unwelded welding area is as follows:

firstly, the clamping jaws are controlled to be opened, and the moving mechanism controls the clamping jaws to move to the root of the desoldering welding strip. As shown in fig. 22, the defective cell 100 in the cell string is desoldered from the welding strip welded to the defective cell 100, and the desoldering welding strip 200 is pulled to both sides, so that the desoldering welding strip 200 is separated from the defective cell 100. The root of the desoldering tape 200 is located at a position where the desoldering tape 200 is close to the cell piece connected thereto, i.e., a position a shown in fig. 22.

And controlling the clamping jaws to correspondingly clamp an unsoldered welding strip from the root position.

Then, the moving mechanism controls each clamping jaw to move towards the end of the corresponding desoldering welding strip, and finally clamps the end of the corresponding desoldering welding strip.

And finally, the moving mechanism controls each clamping jaw to pull the desoldering welding strip to a designated position for replacing the battery piece.

As shown in fig. 2, optionally, the moving mechanism includes a first moving mechanism 11, a second moving mechanism 12 and a lifting module 13, wherein: the second translation mechanism 12 is connected to a movable part of the first translation mechanism 11, the lifting module 13 is connected to a movable part of the second translation mechanism 12, and the mounting plate 16 is connected to a movable part of the lifting module 13. First translation mechanism 11 is used for driving clamping jaw assembly 17 along the translation of first horizontal direction, and first horizontal direction is on a parallel with the extending direction who welds the area, and second translation mechanism 12 is used for driving clamping jaw assembly 17 along the translation of second horizontal direction, and the extending direction that the area was welded to the second horizontal direction perpendicular to, and lift module 13 is used for driving clamping jaw assembly 17 and goes up and down.

Through the matching drive of the first translation mechanism 11, the second translation mechanism 12 and the lifting module 13, the moving mechanism realizes the drive of the clamping jaw assembly 17 in two horizontal directions and the vertical direction, thereby ensuring that the clamping jaw assembly 17 can clamp and pull the welding strip.

With continued reference to fig. 2, optionally, the first translation mechanism 11 includes a base 111, a first slide rail 112, a first translation driving element 113 and a bottom plate 114, wherein: the first slide rail 112 is disposed on the base 111 along a first horizontal direction, the first translational driving member 113 is disposed on the base 111, and the bottom plate 114 is slidably connected to the first slide rail 112 and connected to a driving end of the first translational driving member 113.

The second translation mechanism 12 includes a second slide rail 121, a second translation driving element 122 and a sliding bracket 123, wherein the second slide rail 121 is disposed on the bottom plate 114 along a second horizontal direction, the second translation driving element 122 is disposed on the bottom plate 114, and the sliding bracket 123 is slidably connected to the second slide rail 121 and is connected to a driving end of the second translation driving element 122. Lifting module 13 sets up on sliding bracket 123, and lifting module 13 can for example select for use outsourcing spare, such as linear electric motor, cylinder etc..

The first translation driving member 113 drives the bottom plate 114 to slide along the first sliding rail 112, so as to drive the clamping jaw assembly 17 to translate in the first horizontal direction; the second translation driving member 122 drives the sliding bracket 123 to slide along the second sliding rail 121, so as to drive the clamping jaw assembly 17 to translate in the second horizontal direction.

With continued reference to fig. 2, optionally, the lifting module 13 includes a lifting driving member 131 and a driving shaft 132, wherein the lifting driving member 131 is fixed on the sliding bracket 123, the driving shaft 132 is vertically disposed, the lower end of the driving shaft 132 slides through the sliding bracket 123, and the upper end of the driving shaft 132 is fixedly connected to one end of the mounting plate 16. The driving shaft 132 is provided with a threaded section, the threaded section is provided with a feed screw nut 133, the feed screw nut 133 is rotatably connected with the sliding bracket 123, and the driving end of the lifting driving member 131 is connected with the feed screw nut 133.

When the lifting driving member 131 drives the screw nut 133 to rotate, the driving shaft 132 is driven to move up and down, so that the mounting plate 16 is driven to lift.

Optionally, the moving mechanism further includes a rotary driving member 14 and a spline nut 15, the rotary driving member 14 is fixed on the sliding bracket 123, a spline section is further provided on the driving shaft 132, the spline nut 15 is assembled on the spline section of the driving shaft 132, and a driving end of the rotary driving member 14 is connected with the spline nut 15.

When the rotary driving member 14 drives the spline nut 15 to rotate, the driving shaft 132 is driven to rotate, so that the mounting plate 16 is driven to rotate in the horizontal direction, and the clamping jaw assembly 17 is switched between the avoiding position and the working position. For example, to rotate the mounting plate 16 to be parallel to the second horizontal direction (as shown in fig. 1), while the clamping jaw assembly 17 performs clamping and pulling of the solder strip; the mounting plate 16 is driven to rotate to be parallel to the first horizontal direction, and the clamping jaw assembly 17 can avoid the battery string and the like at the moment.

Through set up screw thread section and spline section simultaneously on drive shaft 132 for drive shaft 132 both can drive mounting panel 16 and go up and down, can drive mounting panel 16 rotation again, thereby makes the structure compacter, and occupation space is little. Alternatively, the drive shaft 132 is an integral ball screw ball spline.

As shown in fig. 3 to 6, the clamping jaw assembly 17 may alternatively include a fixed clamping plate 171, a movable clamping plate 173 and a movable clamping plate driving mechanism, wherein:

the fixed clamping plate 171 is fixedly arranged on the mounting plate 16 through a connecting block 179, a plurality of fixed clamping heads 172 extending along the vertical direction are arranged on the fixed clamping plate 171, and the movable clamping plate driving mechanism is arranged on the fixed clamping plate 171.

The movable clamping plate 173 is connected to the fixed clamping plate 171 in a sliding manner through a connecting slide rail and is connected with the driving end of the movable clamping plate driving mechanism, a plurality of movable clamping heads 174 extending along the vertical direction are arranged on the movable clamping plate 173, the movable clamping heads 174 and the fixed clamping heads 172 are arranged at intervals, and the adjacent movable clamping heads 174 and the fixed clamping heads 172 form a clamping jaw.

The movable clamp driving mechanism is used for driving the movable clamp 173 to slide relative to the fixed clamp 171, so that the movable clamp 174 and the corresponding fixed clamp 172 are half closed, fully closed or opened, wherein the movable clamp 174 and the corresponding fixed clamp 172 are half closed to clamp the welding strip, the movable clamp 174 and the corresponding fixed clamp 172 are fully closed to clamp the welding strip, and the movable clamp 174 and the corresponding fixed clamp 172 are opened to release the welding strip.

Optionally, as shown in fig. 6, a support portion 1710 extending in the horizontal direction is disposed at the lower end of the movable chuck 174, and when the movable chuck 174 and the corresponding fixed chuck 172 are half-closed to clamp the solder strip, the support portion 1710 can limit the support of the solder strip from below, so as to prevent the solder strip from falling out of the clamping jaw during the clamping process. Of course, a support portion may be provided at the lower end of the fixed clip 172, or at the lower ends of both the movable clip 174 and the fixed clip 172.

As shown in fig. 3 to 4, optionally, the movable clamp driving mechanism includes a first driving cylinder 175 and a driving block 176, wherein the first driving cylinder 175 is installed on the fixed clamp 171, the driving block 176 is connected to a driving end of the first driving cylinder 175, the movable clamp 173 is connected to the driving block 176, and the first driving cylinder 175 is used for driving the driving block 176 to move, so as to drive the movable clamp 173 to slide relative to the fixed clamp 171.

Optionally, the movable clamping plate driving mechanism further includes a limiting mechanism, the limiting mechanism includes a second driving cylinder 177 and a limiting block 178, wherein the second driving cylinder 177 is installed on the fixed clamping plate 171, the limiting block 178 is slidably installed on the fixed clamping plate 171 and connected with a driving end of the second driving cylinder 177, and the second driving cylinder 177 is used for driving the limiting block 178 to slide towards or away from the driving block 176 so as to position the limiting block 178 to a predetermined limiting position or an avoiding position.

When the second driving cylinder 177 drives the limit block 178 to the limit position, and the first driving cylinder 175 drives the driving block 176 to slide towards the limit block 178, the driving block 176 finally abuts against the limit block 178, so that the movable clamp 174 and the corresponding fixed clamp 174 are semi-closed.

When the second driving cylinder 177 drives the limit block 178 to the avoiding position, and the first driving cylinder 175 drives the transmission block 176 to slide towards the limit block 178, the limit block 178 does not block and limit the transmission block 176, so that the transmission block 176 can move to the limit position, and finally the movable chuck 174 and the corresponding fixed chuck 172 are completely closed.

As shown in fig. 4, the clamping jaw assembly 17 may further include a first side adjusting block 18 and a second side adjusting block 19 disposed on the fixed clamping plate 171, wherein the first side adjusting block 18 is located at a first side of a moving path of the limit block 178 for limiting sliding of the limit block 178 at the first side of the limit block 178. Second side adjustment block 19 is positioned on a second side of the path of travel of stop block 178 for effecting a sliding stop of stop block 178 on the second side of stop block 178.

The limiting of the limiting block 178 is implemented from two sides through the first side adjusting block 18 and the second side adjusting block 19, the limiting position and the avoiding position of the limiting block 176 can be determined, in practice, the installation positions of the first side adjusting block 18 and the second side adjusting block 19 on the fixing clamp plate 171 can be set to be adjustable, and therefore the limiting position and the avoiding position of the limiting block 176 can be adjusted.

To solve this problem, the clamping jaw assembly 17 may further include a solder strip depressing mechanism 110, as shown in fig. 7 and 8, for pressing down the desoldering solder strip held in each clamping jaw to adjust the height of each desoldering solder strip to be uniform, optionally when each clamping jaw moves to the root of the desoldering solder strip to hold the desoldering solder strip.

Optionally, as shown in fig. 8, the solder strip pressing mechanism 110 includes a pressing cylinder 1101 and a pressing plate 1102, wherein the pressing cylinder 1101 is mounted on the movable clamp plate 173, the pressing plate 1102 is connected to a driving end of the pressing cylinder 1101 and located at a side of each clamping jaw, and when the pressing cylinder 1101 drives the pressing plate 1102 to descend, the pressing plate 1102 presses the solder strip clamped in each clamping jaw downwards, so as to push the solder strip clamped in each clamping jaw to slide downwards to the same height.

The utility model also provides a device is reprocessed to battery cluster, as shown in fig. 9, this device is reprocessed to battery cluster is including reprocessing platform 20, at least one weld and take draw gear 10, heat welding mechanism 30 and battery piece feeding mechanism as above-mentioned any one embodiment provides, wherein:

the repairing platform 20 is used for bearing the battery string to be repaired, and is matched with the heating welding mechanism 30 to unweld and separate the defective battery piece in the battery string to be repaired from the welding strip welded on the defective battery piece, so as to obtain a first disassembled battery string and a second disassembled battery string.

The battery piece feeding mechanism is used for feeding replacement battery pieces onto the repair platform so as to replace the defective battery pieces.

The welding strip traction device 10 is used for dragging and stacking the desoldering welding strips of the first disassembled battery string and the desoldering welding strips of the second disassembled battery string to the designated positions of the replaced battery pieces.

The heating welding mechanism 30 welds the stacked desoldering tapes to the designated positions of the replacement battery pieces, thereby obtaining the repaired battery string.

In the embodiment of the utility model, as shown in fig. 9, weld and take draw gear 10 to be provided with two, two weld and take draw gear 10 to be used for respectively with the first desoldering welding strip of disassembling the battery cluster and the second desoldering welding strip of disassembling the battery cluster pull and stack the assigned position to the replacement battery piece to improve traction efficiency.

Adopt the utility model discloses battery cluster is reprocessed device and is implemented and treat the reprocessing of reprocessing the battery cluster, its process as follows:

the battery string to be repaired is loaded onto the repair platform 20.

And controlling the repair platform 20 and the heating and welding mechanism 30 to desolder and separate the defective battery piece in the battery string to be repaired and the welding strip welded on the defective battery piece to obtain a first disassembled battery string and a second disassembled battery string.

The control battery piece feed mechanism will replace the battery piece material and go up in order to replace the defect battery piece to reprocess on the platform 20, namely, get away the defect battery piece that is disassembled earlier, then place the replacement battery piece to the position that vacates after the defect battery piece is taken away.

And controlling the two welding strip traction devices 10 to respectively pull and stack the desoldering welding strips of the first disassembled battery string and the desoldering welding strips of the second disassembled battery string to the designated positions of the replaced battery pieces.

The heating welding mechanism 30 is controlled to weld the stacked desoldering tapes to the corresponding replacement battery piece, thereby obtaining the repaired battery string.

Wherein, for different types of battery strings, the stacking sequence of the replacement battery plate and the desoldering welding strip is different:

for the condition that the battery pieces in the battery string to be repaired are IBC battery pieces, when the battery pieces are stacked, the replacement battery pieces are firstly placed at the positions, left out after the defective battery pieces are taken away, and then the desoldering welding strips of the first disassembled battery string and the desoldering welding strips of the second disassembled battery string are respectively pulled and stacked to the specified positions of the upper surface of the replacement battery pieces.

When the battery pieces to be repaired are stacked, the desoldering welding strips of the first disassembled battery string are dragged and laid on the repairing platform, the replaced battery pieces are fed and stacked on the desoldering welding strips of the first disassembled battery string, so that the desoldering welding strips of the first disassembled battery string correspond to the designated positions of the lower surfaces of the replaced battery pieces, and then the desoldering welding strips of the second disassembled battery string are dragged and stacked to the designated positions of the upper surfaces of the replaced battery pieces.

It is thus clear that through the cooperation of reprocessing platform 20, battery piece feed mechanism, welding and take draw gear 10 and heat-welding mechanism 30, the embodiment of the utility model provides a battery string reprocesses the device and has realized treating the automation of reprocessing the defect battery piece in the battery string and disassemble to replace battery piece automatic weld to the position department that the defect battery piece was vacated after being disassembled, thereby promoted the battery string by a wide margin and reprocessed efficiency.

Optionally, the heat welding mechanism 30 employs an infrared lamp box mechanism.

In order to ensure that the solder ribbon traction device 10 accurately draws the desoldering solder ribbon of the first disassembled battery string and the desoldering solder ribbon of the second disassembled battery string to specified positions in the subsequent replacement battery piece welding process, it is necessary to position the defective battery piece and the adjacent battery piece adjacent to the defective battery piece before stacking.

Optionally, the embodiment of the present invention provides an apparatus for repairing battery string further includes a first positioning camera, and the first positioning camera is located above the repairing platform 20. Before the defective cell is subjected to desoldering, the first positioning camera acquires the position information of the defective cell and/or the adjacent cell adjacent to the defective cell.

The embodiment is particularly suitable for positioning in the repair process of the battery string with the inter-cell distance, and because the inter-cell distance exists between the adjacent battery cells in the battery string, the information of the positions of the edges of the defective battery cells and/or the adjacent battery cells can be accurately acquired by only using one first positioning camera, so that the defective battery cells and/or the adjacent battery cells can be accurately positioned, and a position basis is provided for the subsequent stacking operation.

For a battery string which cannot be accurately positioned by using a first positioning camera before desoldering, for example, a TR stitch welding battery string, because the edges of adjacent battery pieces in the TR stitch welding battery string are overlapped, photographing is performed before desoldering, and information of the positions of the edges of adjacent battery pieces cannot be accurately acquired. In view of this, optionally, as shown in fig. 20, the battery string repairing apparatus in the embodiment of the present invention further includes a second positioning camera 50 and a third positioning camera 60 disposed above the repairing platform 20. After the desoldering separation of the defective cell and the solder strip welded on the defective cell is completed, the second positioning camera 50 is used to acquire the position information of the adjacent cell adjacent to the defective cell in the first disassembled cell string, and the third positioning camera is used to acquire the position information of the adjacent cell adjacent to the defective cell in the second disassembled cell string.

After the desoldering separation, the edges of the adjacent battery pieces are separated from the defective battery pieces, so that the position information of the adjacent battery pieces on the two sides can be accurately acquired through the second positioning camera 50 and the third positioning camera 60, and a position basis is provided for the subsequent stacking operation. The battery string repairing device in the present embodiment is also applicable to a battery string having a pitch.

As shown in fig. 10, optionally, the rework platform 20 includes a mounting seat 21, a middle bearing platform 22, a first side bearing platform 23 and a second side bearing platform 24, wherein: the middle bearing table 22 is fixedly installed on the installation base 21, the first side bearing table 23 is movably connected on the installation base 21 and located on the first side of the middle bearing table 22, and the first side bearing table 23 is configured to be capable of translating towards or away from the middle bearing table 22. A second side carrier table 24 is movably attached to the mounting base 21 and is positioned on a second side of the intermediate carrier table 22, the second side carrier table 24 being configured to translate toward or away from the intermediate carrier table 22. The middle bearing table 22 is used for bearing a defective battery piece or a replacement battery piece, the first side bearing table 23 is used for bearing a battery piece or a first disassembled battery string on the first side of the defective battery piece, and the second side bearing table 24 is used for bearing a battery piece or a second disassembled battery string on the second side of the defective battery piece.

Optionally, at least one of the first side-carrying platform 23 and the second side-carrying platform 24 is configured to be capable of being raised and lowered in a vertical direction.

The repair platform 20 is matched with the heating and welding mechanism 30, and the specific process of separating and desoldering the defective battery piece in the battery string to be repaired and the welding strip welded on the defective battery piece is as follows:

in the initial state, the middle carrier 22, the first side carrier 23 and the second side carrier 24 are butted, that is, the middle carrier 22, the first side carrier 23 and the second side carrier 24 are butted to form a continuous horizontal carrier platform.

The battery string to be repaired is loaded on the horizontal bearing table surface, the defective battery pieces are located on the middle bearing table 22, the battery pieces located on the first sides of the defective battery pieces are located on the first side bearing table 23, and the battery pieces located on the second sides of the defective battery pieces are located on the second side bearing table 24.

Implementing the desoldering and separation of the defective battery pieces:

and controlling the heating welding mechanism 30 to heat the defective cell piece, so that the welding strip welded on the defective cell piece is welded with the defective cell piece in a desoldering mode.

The first side plummer 23 of control drives the battery piece that is located the first side of defect battery piece and keeps away from middle plummer 22 translation, makes the welding area that welds on the adjacent battery piece of the first side of defect battery piece separate with the defect battery piece, obtains first battery cluster of disassembling, and at this moment, first battery cluster of disassembling bears on first side plummer 23, and the first desoldering of disassembling battery cluster welds the area and outwards stretches out first side plummer 23 and is in the flagging state.

And controlling the second side bearing table 24 to drive the battery piece positioned on the second side of the defective battery piece to be far away from the middle bearing table 22 for translation, so that the welding strip welded on the adjacent battery piece on the second side of the defective battery piece is separated from the defective battery piece to obtain a second disassembled battery string, and at the moment, the second disassembled battery string is borne on the second side bearing table 24, and the second disassembled battery string is in a sagging state, wherein the second disassembled welding strip outwards extends out of the second side bearing table 24.

After the defective battery piece and the solder strip welded on the defective battery piece are desoldered and separated, the solder strip traction device 10 is controlled to clamp the end part of the desoldered solder strip of the first disassembled battery string and the end part of the desoldered solder strip of the second disassembled battery string in the manner described above, preferably, before or after the solder strip traction device 10 is controlled to clamp the desoldered solder strip of the disassembled battery string, the first side bearing platform 23 and/or the second side bearing platform 24 are controlled to ascend to a high position, so that the desoldered solder strip can be dragged and moved in the high position in the subsequent stacking process, and the interference between the solder strip traction device 10 and the middle bearing platform 22 or the replaced battery piece in the subsequent stacking process can be avoided.

Optionally, the welding strip traction device 10, the battery piece feeding mechanism and the repair platform 20 complete the stacking of the desoldering welding strip of the first disassembled battery string, the desoldering welding strip of the second disassembled battery string and the replacement battery piece according to the following processes:

taking the case that the upper surface and the lower surface of the battery piece in the battery string to be repaired are welded with the welding strips, in some embodiments, the specific stacking process of the unsoldering welding strips for disassembling the battery string and replacing the battery pieces is as follows:

firstly, the first welding strip traction device 10 and the first side bearing platform 23 are controlled to move horizontally towards the middle bearing platform 22, and in the traction process, the desoldering welding strips of the first disassembled battery string are kept to be pulled in a horizontal state until the desoldering welding strips of the first disassembled battery string reach the upper part of the middle bearing platform 22. And controlling the first side bearing platform 23 and the first welding strip traction device 10 to descend so that the desoldering welding strips of the first disassembled battery string are laid on the middle bearing platform 22.

And then, controlling the battery piece feeding mechanism to feed the replacement battery pieces and stacking the replacement battery pieces onto the desoldering welding strip of the first disassembled battery string.

And finally, controlling the second welding strip traction device 10 and the second side bearing platform 24 to move horizontally towards the middle bearing platform 22, and in the same way, keeping the desoldering welding strips of the second disassembled battery string to be pulled in a horizontal state in the pulling process until the desoldering welding strips of the second disassembled battery string reach the upper part of the replaced battery piece, and controlling the second side bearing platform 24 and the second welding strip traction device 10 to descend so that the desoldering welding strips of the second disassembled battery string are laid on the replaced battery piece.

The first welding strip traction device 10 is controlled to clamp the desoldering welding strip of the first disassembled battery string, the second welding strip traction device 10 is controlled to clamp the desoldering welding strip of the second disassembled battery string, and then the two groups of desoldering welding strips are pulled and stacked, so that the clamping operation of the two groups of desoldering welding strips can be carried out simultaneously, and the stacking efficiency is improved.

Of course, the first welding strip traction device 10 can be controlled to clamp the desoldering welding strip of the first disassembled battery string to perform traction stacking of the desoldering welding strip, and then the second welding strip traction device 10 can be controlled to clamp the desoldering welding strip of the second disassembled battery string to perform traction stacking of the desoldering welding strip, so as to prevent possible interference among mechanisms in the traction stacking process.

It should be noted that, in the stacking process, it is required to ensure that the desoldering bonding tapes of the first disassembled battery string and the desoldering bonding tapes of the second disassembled battery string are respectively stacked on the grid lines on the corresponding surfaces of the battery pieces.

In consideration of the fact that the desoldering welding strips are prone to dislocation after the desoldering welding strips of the first disassembled battery string are loosened by the welding strip traction device 10 in the stacking process, after the replacement battery piece is placed well, the desoldering welding strips of the first disassembled battery string and the grid lines on the replacement battery piece are prone to shifting, and therefore the repairing quality is affected.

To solve this problem, optionally, as shown in fig. 11 and 12, a first side of the middle carrier table 22 is provided with a first side welding strip straightening mechanism 25, and a second side of the middle carrier table 22 is provided with a second side welding strip straightening mechanism 26. After the welding strip traction device 10 draws and lays the desoldering welding strips of the first disassembled battery string on the intermediate bearing table 22, the first side welding strip straightening mechanism 25 is configured to clamp the desoldering welding strips of the first disassembled battery string on the first side, the second side welding strip straightening mechanism 26 is configured to clamp the desoldering welding strips of the first disassembled battery string on the second side, and the replacement battery piece is laid on the desoldering welding strips of the first disassembled battery string which are straightened.

The first side welding strip straightening mechanism 25 and the second side welding strip straightening mechanism 26 work as follows:

after the to-be-welded strip traction device 10 lays the desoldering welding strips of the first disassembled battery string on the middle bearing table 22, the first side welding strip straightening mechanism 25 clamps the desoldering welding strips from the first side, and synchronously, the second side welding strip straightening mechanism 26 clamps the desoldering welding strips from the second side, and then the to-be-welded strip traction device 10 releases the desoldering welding strips and moves back.

The first side weld ribbon straightening mechanism 25 and/or the second side weld ribbon straightening mechanism 26 are then controlled to move away from the carrier table 10, thereby straightening the desoldering weld ribbon at the intermediate carrier table 22.

A replacement cell is then placed on the intermediate carrier 22. Therefore, the situation that the unsoldered welding strip is misplaced after the first disassembled battery string is loosened by the welding strip traction device 10 can be avoided.

Alternatively, the first side welding strip straightening mechanism 25 and the second side welding strip straightening mechanism 26 have the same structure. The structure and operation of the first side welding strip straightening mechanism 25 and the second side welding strip straightening mechanism 26 will be described below by taking the first side welding strip straightening mechanism 25 as an example.

As shown in fig. 11, 13 and 15, optionally, the first side solder ribbon straightening mechanism 25 includes a third translation mechanism 251, a first lifting mechanism 252 and a solder ribbon clamping assembly 253, wherein: the first elevating mechanism 252 is provided on a movable part of the third translation mechanism 251, and the solder ribbon clamp assembly 253 is provided on a movable part of the first elevating mechanism 252. The first lifting mechanism 252 is configured to drive the solder strip clamping assembly 253 to lift, the third translation mechanism 251 is configured to drive the solder strip clamping assembly 253 to translate towards or away from the intermediate support 22, the solder strip clamping assembly 253 includes a plurality of clamps, the plurality of clamps are in one-to-one correspondence with the respective desoldering solder strips at the end of the first disassembled battery string, and each clamp is configured to clamp and release one desoldering solder strip.

Initially, the solder ribbon clamp assembly 253 is in a low position. After the welding strip traction device 10 lays the desoldering welding strips of the first disassembled battery string on the intermediate bearing table 22, the first lifting mechanism 252 drives the welding strip clamping assembly 253 to ascend, so that the desoldering welding strips enter the welding strip clamping assembly 253, and then the corresponding desoldering welding strips are clamped by the clamps of the welding strip clamping assembly 253. The third translation mechanism 251 then drives the ribbon clamp assembly 253 to move away from the intermediate carrier 22, thereby effecting straightening of the clamped desoldering ribbon.

As shown in fig. 11 and 13, optionally, the translation mechanism 251 includes a translation guide 2511, a translation driving device 2512, and a base plate 2513, wherein the base plate 2513 is slidably connected to the translation guide 2511 and connected to the driving end of the translation driving device 2512. The first lifting mechanism 252 includes a lifting driving device 2521 and a lifting plate 2522, wherein the lifting driving device 2521 is mounted on the base plate 2513, the lifting plate 2522 is connected to a driving end of the lifting driving device 2521, and the solder ribbon clamp assembly 253 is disposed on the lifting plate 2522.

The lifting driving device 2521 is used for driving the lifting plate 2522 to lift and lower, thereby driving the solder strip clamp assembly 253 to lift, and the translation driving device 2512 is used for driving the base plate 2513 to translate along the translation guide rail 2511, so as to drive the solder strip clamp assembly 253 to translate towards or away from the intermediate bearing table 22.

With continued reference to fig. 11 and 13, the solder strip clamp assembly 253 includes a clamp mounting plate 254, a plurality of clamps 255, and a clamp drive mechanism 256, wherein: the lifting plate 2622 is provided with a support rod 2523, the clamp mounting plate 254 is supported on the support rod 2523, the plurality of clamps 255 are arranged on the clamp mounting plate 254 side by side, and each clamp 255 corresponds to each desoldering solder strip one to one. The clamp driving mechanism 256 is provided on the elevating plate 2522, and the driving end of the clamp driving mechanism 256 is connected to each clamp 255.

The clamp driving mechanism 256 is used to drive the clamps 255 to open and close synchronously, so that each clamp 255 clamps or releases the corresponding desoldering strip.

As shown in fig. 12, fig. 13 and fig. 14, optionally, the clamp driving mechanism 256 includes a pressure plate 2561 and a pressure plate driving assembly, wherein the pressure plate 2561 is slidably connected to the supporting rod 2523, a plurality of press-fit pieces 2565 corresponding to the clamps 255 one to one are disposed on the pressure plate 2561, a press-fit groove is formed on each press-fit piece 2565, the pressure plate driving assembly is disposed on the lifting plate 2522, and the pressure plate driving assembly is configured to drive the pressure plate 2561 to slide up and down along the supporting rod 2523. The clamp 255 comprises a first clamp head 2551, a second clamp head 2552 and a pressure spring 2554, wherein the middle parts of the first clamp head 2551 and the second clamp head 2552 are connected to the clamp mounting plate 254 through a rotating shaft 2553 in a rotating manner, the pressure spring 2554 is connected between the first clamp head 2551 and the second clamp head 2552 and is positioned below the rotating shaft 2553, and the lower ends of the first clamp head 2551 and the second clamp head 2552 penetrate out of the clamp mounting plate 254 downwards and then are inserted into corresponding pressing grooves. The outer side walls of the lower ends of the first clamping head 2551 and the second clamping head 2552 are pressed against the corresponding pressing grooves under the elastic pushing of the compression spring 2554, and the upper ends of the first clamping head 2551 and the second clamping head 2552 penetrate out of the clamp mounting plate 254 upwards.

Optionally, as shown in fig. 14, the pressing member 2565 includes a pressing block, a first rolling bearing and a second rolling bearing, wherein: the briquetting is installed on clamp plate 2561, and the pressfitting groove sets up on the briquetting, and first antifriction bearing and second antifriction bearing set up in the relative both sides in pressfitting groove, and first chuck 2551's lower extreme lateral wall supports and leans on first antifriction bearing, and second chuck 2552's lower extreme lateral wall supports and leans on second antifriction bearing, and first chuck 2551's lower extreme lateral wall and second chuck 2552's lower extreme lateral wall are the inclined plane of leanin from top to bottom respectively.

In the initial state, when the pressure plate 2561 is in the initial low position away from the clamp mounting plate 254, the upper ends of the first and second clamp heads 2551 and 2552 of each clamp 255 are in the closed state.

When clamping of the desoldering solder strip is to be performed, first, the pressure plate driving assembly drives the pressure plate 2561 to slide upwards along the supporting rod 2523 to a high position close to the clamp mounting plate 254, and in the process, each pressing member 2565 presses the lower ends of the first and second clamp heads 2551 and 2552 of the corresponding clamp 255 towards the middle, so that the upper ends of the first and second clamp heads 2551 and 2552 of the clamp 255 are turned from the closed state to the open state.

Next, the elevation driving device 221 drives the elevation plate 2522 to ascend until each desoldering strip enters between the upper ends of the first and second chucks 2551 and 2552 of the corresponding clamp 255.

Finally, the platen driving assembly drives the platen 2561 to slide down along the support rod 2523 and return to the closed position, under the urging of the compression spring 2554, the upper ends of the first and second jaws 2551 and 2552 of each clamp 255, thereby clamping each desoldering strip.

As shown in fig. 11, 13 and 15, optionally, the pressing plate driving assembly includes an inclined cam 2562 and an inclined cam translational driving mechanism 2563, wherein the inclined cam translational driving mechanism 2563 is disposed on the lifting plate 2522, the inclined cam 2562 is slidably mounted on the lifting plate 2522 and connected to a driving end of the inclined cam translational driving mechanism 2563, and a driving inclined surface inclined downward is formed on the inclined cam 2562. The bottom of the pressing plate 2561 is provided with a follower 2564, and the follower 2564 is pressed against the driving slope.

The oblique cam translation driving mechanism 2563 is used for driving the oblique cam 2562 to translate along the lifting plate 2522 so as to drive the follower 2564 to move along the driving inclined surface, and finally, the lifting driving of the pressing plate 2561 is realized. For example, as shown in fig. 13, when the tilt cam translation driving mechanism 2563 drives the tilt cam 2562 to translate along the lifting plate 2522 in a first horizontal direction (as indicated by the arrow in the figure), the follower 2564 slides up along the driving slope under the jacking of the tilt cam 2562, so as to drive the lifting of the pressing plate 2561. Conversely, when the tilt cam translation driving mechanism 2563 drives the tilt cam 2562 to translate along the lifting plate 2522 in a second horizontal direction opposite to the first horizontal direction, the pressing plate 2561 descends under its own weight, and at the same time, the follower 2564 slides down along the driving slope.

As shown in fig. 16 to 18, optionally, each clamp is further configured to clamp one desoldering strip, and the desoldering strip can slide up and down in the clamp when the clamp clamps the corresponding desoldering strip; the middle bearing table 22 comprises a support 221, a bearing table surface 222, a plurality of welding strip supporting plates 223 and a welding strip supporting plate lifting mechanism 224, wherein: the carrying table 222 is installed on the bracket 221, and the carrying table 222 is used for carrying and adsorbing the defective battery piece or replacing the battery piece. The bearing table 222 is provided with a plurality of grooves at intervals, each groove is provided with a welding strip support plate 223, each welding strip support plate 223 is used for laying a desoldering welding strip for disassembling the battery string, and two sides of the welding strip support plate 223 are respectively provided with a clamp 225. The solder ribbon support plate lifting mechanism 224 is disposed on the support 221 for driving each solder ribbon support plate 223 to be lifted and lowered synchronously. When the solder ribbon support plate 223 is lowered to the low position, the top surface of the solder ribbon support plate 223 is lower than the carrying table 222.

Optionally, the bracket 221 is provided with a mounting seat 225, each solder strip support plate 223 is mounted on the mounting seat 225 through a connecting rod 226, the mounting seat 225 is connected to a driving end of the solder strip support plate lifting mechanism 224, and the solder strip support plate lifting mechanism 224 drives the mounting seat 225 to lift, so as to drive each solder strip support plate 223 to lift synchronously.

The working process of the welding strip supporting plate is as follows:

when the defective cell is disassembled from the battery string to be repaired, the solder ribbon support plate elevating mechanism 224 drives the solder ribbon support plate 223 to the low position. As such, the solder ribbon located on the lower surface of the defective cell does not contact the corresponding solder ribbon support plate 223. When the first and second side bearing tables 23 and 24 are separated to both sides, the solder material on the desoldering tape on the first disassembled battery string drawn out from the middle bearing table 22 does not adhere to the tape support plate 223, so that the table top of the middle bearing table 22 is kept clean.

After the defective cell is disassembled, each solder strip support plate 23 is in a low position, and the top surface of each solder strip support plate 23 is lower than the bearing table 222.

Next, the desoldering solder strips of the first disassembled battery string are laid on the corresponding solder strip support plates 23 through the first solder strip traction device 10, and the first side solder strip straightening mechanism 25 and the second side solder strip straightening mechanism 26 are controlled to straighten the desoldering solder strips.

Next, the replacement battery piece is placed on the bearing table 222, the grid lines on the lower surface of the battery piece are ensured to be aligned with the straightened desoldering solder strip, and the bearing table 222 is controlled to adsorb the replacement battery piece.

Next, the control clamp 255 is switched from the clamping state to the gripping state.

And finally, controlling the solder strip supporting plate lifting mechanism 24 to drive each solder strip supporting plate 24 to rise to a high position, so that each desoldering solder strip is pushed upwards, and finally each desoldering solder strip is pressed on the lower surface of the replacement battery plate, so that each desoldering solder strip is effectively contacted with the lower surface of the battery plate, and the subsequent welding quality is ensured.

Through controlling earlier the clamp to switch to the clamping state by clamping state, the rethread welds and takes backup pad 24 will weld and take the propelling movement upwards to at the propelling movement in-process, the clamp can lead to the strip is welded in the unsoldering, makes the strip of unsoldering can only follow vertical rebound, has avoided the propelling movement in-process strip of unsoldering to take place the skew and can't aim at battery piece lower surface grid line, further guarantees welding quality.

In order to realize the clamping of the desoldering solder strip by the clamp 255, optionally, as shown in fig. 13, the clamp driving mechanism 256 further includes a cam limiting mechanism, the cam limiting mechanism includes a limiting driving mechanism 2566 and a limiting block 2567, wherein the limiting driving mechanism 2566 is disposed on the lifting plate 2522, the limiting block 2567 is slidably mounted on the lifting plate 2522 and connected to a driving end of the limiting driving mechanism 2566, and the limiting driving mechanism 2566 is configured to drive the limiting block 2567 to translate toward or away from the cam 2562 so as to move the limiting block 2567 to a predetermined limiting position or an avoiding position.

When the stop block 2567 is in the retracted position, the stop block 2567 does not limit the skew cam 2562. At this time, when the tilt cam translation driving mechanism 2563 drives the tilt cam 2562 to translate along the lifting plate 2522 in the first horizontal direction (as indicated by the arrow in the figure), the pressing plate 2561 can be lifted to the limit high position, so that the upper ends of the first and second collets 2551 and 2552 are fully opened.

When the limit block 2567 is located at the limit position, the oblique cam translation driving mechanism 2563 drives the oblique cam 2562 to translate along the lifting plate 2522 in the first horizontal direction, the oblique cam 2562 is blocked and limited by the limit block 2567, so that the pressure plate 2561 can only ascend to a predetermined height lower than the limit high position, and finally the upper ends of the first chuck 2551 and the second chuck 2552 can only be half opened. When the upper ends of the first clamping head 2551 and the second clamping head 2552 are in a half-open state, the clamping of the desoldering welding strip is realized, and the desoldering welding strip can slide up and down in the clamp 255.

As shown in fig. 18, optionally, the device for repairing battery string in the embodiment of the present invention further includes a pressure welding belt assembly 40, where the pressure welding belt assembly 40 is used for compressing the desoldering welding belt of the second disassembled battery string on the upper surface of the replaced battery piece after the desoldering welding belt of the second disassembled battery string is drawn and stacked to the upper surface of the replaced battery piece by the welding belt drawing device 10, so as to improve the welding effect of the desoldering welding belt and the replaced battery.

As shown in fig. 19, the pressure welding belt assembly 40 optionally includes a second lifting mechanism 41, a third lifting mechanism 42, an inner pressing pin 44 and an outer pressing pin 45, wherein: the inner presser pin 44 is provided on the movable member of the second elevating mechanism 41, and the outer presser pin 45 is provided on the movable member of the third elevating mechanism 42 and located outside the inner presser pin 44. The second lifting mechanism 41 is used for driving the inner pressing pin 44 to press the middle part of the desoldering strip of each second disassembled battery string, and the third lifting mechanism 42 is used for driving the outer pressing pin 45 to press the two ends of the desoldering strip of each second disassembled battery string.

Alternatively, as shown in fig. 19, a connecting plate 43 is mounted on the movable part of the second lifting mechanism, an inner side press pin mounting plate 46 is disposed on the connecting plate 43, the inner side press pin 44 is mounted on the inner side press pin mounting plate 46, and the second lifting mechanism 41 drives the inner side press pin mounting plate 46 to lift to drive the inner side press pin 44 to lift. The third lifting mechanism 42 comprises an outer cylinder 421 and an outer pressing pin mounting bracket 422, wherein the outer cylinder 421 is mounted on the connecting plate 43, the outer pressing pin mounting bracket 422 is slidably mounted on the connecting plate 43 and can slide up and down along the connecting plate 43, and the outer pressing pin 45 is connected to the outer pressing pin mounting bracket 422. The outer cylinder 421 is used for driving the outer pressing pin mounting bracket 422 to slide up and down relative to the connecting plate 43, so as to drive the outer pressing pin 45 to lift.

As described above, in the process of controlling the second solder ribbon traction device 10 to pull the desoldering solder ribbon for stacking the second disassembled battery string onto the replaced battery piece, after the desoldering solder ribbon reaches the upper side of the replaced battery piece, the second side bearing table 24 and the second solder ribbon traction device 10 are controlled to descend, so that the desoldering solder ribbon for the second disassembled battery string is laid on the replaced battery piece. Because the desoldering solder strip is clamped inside the second solder strip traction device 10, in order to avoid interference between the second solder strip traction device 10 and the upper surface of the battery piece when the second solder strip traction device 10 descends, when the second solder strip traction device 10 descends to the lowest position, a certain distance still exists between the desoldering solder strip of the second disassembled battery string and the upper surface of the replaced battery piece, and at the moment, if the second solder strip traction device 10 directly loosens the desoldering solder strip, the desoldering solder strip is easy to shift after descending to the right position.

In order to solve the technical problem, the embodiment of the utility model provides a set up pressure welding and take assembly 40, through control pressure welding and take assembly 40 to compress tightly the desoldering welding strip at replacement battery piece upper surface earlier, the second of controlling again welds and takes draw gear 10 to loosen the desoldering welding strip, can avoid the desoldering welding strip to take place the offset after being loosened. And through setting up two sets of tuckers, inboard tucker 44 and outside tucker 45 promptly, when pushing down the desoldering solder strip, control inboard tucker 44 to descend earlier and push down the middle part of desoldering solder strip, prevent that the desoldering solder strip from taking place the skew, then control second solder strip draw gear 10 and loosen the tip of desoldering solder strip, control outside tucker 45 and second side plummer 24 descend together again, make outside tucker 45 push down the both ends of desoldering solder strip, thereby can realize fully compressing tightly along length direction to the desoldering solder strip, can also avoid compressing tightly the in-process desoldering solder strip and take place to warp.

After the pressure welding belt assembly 40 presses the desoldering welding belts of the second disassembled battery string on the upper surface of the replaced battery piece, the heating welding mechanism 30 can be controlled to heat the replaced battery piece, and the upper and lower groups of desoldering welding belts are welded on the replaced battery piece again to finish the repair of the battery string.

As shown in fig. 20 and 21, alternatively, the pressure welding tape assembly 40 is mounted on the same mounting frame 80 as the heat welding mechanism 30, with the pressure welding tape assembly 40 being located below the heat welding mechanism 30. The mounting frame 80 is provided with a lifting mechanism for driving the pressure welding strip assembly 40 and the heating and welding mechanism 30 to lift, and a rotating mechanism for driving the pressure welding strip assembly 40 and the heating and welding mechanism 30 to rotate.

After the desoldering, in the process of separating the battery string and stacking the replacement battery piece and the desoldering welding strip, the rotating mechanism drives the pressure welding strip assembly 40 and the heat welding mechanism 30 to the retreating positions shown in fig. 20, so as to retreat the components such as the welding strip traction device 10 and the battery piece feeding mechanism 70.

After the replacement battery piece and the desoldering welding strip are stacked, the rotating mechanism drives the pressure welding strip assembly 40 and the heat welding mechanism 30 to rotate 90 degrees, so that the pressure welding strip assembly 40 and the heat welding mechanism 30 rotate to the position above the middle bearing table 22, and welding operation on the replacement battery piece is performed.

As known to those skilled in the art, when welding is performed using the infrared lamp box as the heating and welding mechanism 30, the heat-affected zone of the infrared lamp box is large, and it is easy to have a large heat effect on the adjacent battery pieces.

In order to solve this problem, optionally, as shown in fig. 21, the pressure welding strip assembly 40 in the present embodiment further includes a shielding plate 47, the shielding plate 47 is mounted on the movable part of the third lifting mechanism, the outer pressing pin 45 is mounted on the shielding plate 47, the shielding plate 47 is used for shielding the adjacent battery piece adjacent to the replacement battery piece when the outer pressing pin 45 presses the two ends of the desoldering strip of each second disassembled battery string, and the shielding plate 47 is further provided with an air blowing port 48.

The shielding plate 47 can shield the adjacent cell, so as to reduce the irradiation of the infrared lamp box on the adjacent cell. On the other hand, by blowing air to the adjacent cell through the air blowing port 48, the adjacent cell can be cooled, and the thermal influence on the adjacent cell during repair welding can be reduced.

The invention has been described above with a certain degree of particularity sufficient to make a detailed description thereof. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that may be made without departing from the true spirit and scope of the present invention are intended to be within the scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.

Claims (13)

1. The utility model provides a weld and take draw gear, its characterized in that, weld and take draw gear includes moving mechanism, mounting panel and clamping jaw subassembly, wherein:

the mounting plate is connected to a movable part of the moving mechanism, the clamping jaw assembly is mounted on the mounting plate, and the moving mechanism is at least used for driving the clamping jaw assembly to translate and lift;

the clamping jaw assembly comprises a plurality of clamping jaws, each clamping jaw is configured to clamp, clamp and release a welding strip, and when the clamping jaws clamp the corresponding welding strip, the welding strip can slide in the clamping jaws.

2. The weld ribbon draw apparatus of claim 1, wherein the clamp assembly includes a stationary clamp plate, a movable clamp plate, and a movable clamp plate drive mechanism, wherein:

the fixed clamping plate is fixedly arranged on the mounting plate, a plurality of fixed chucks extending in the vertical direction are arranged on the fixed clamping plate, and the movable clamping plate driving mechanism is arranged on the fixed clamping plate;

the movable clamping plate is connected to the fixed clamping plate in a sliding mode and is connected with the driving end of the movable clamping plate driving mechanism, a plurality of movable clamping heads extending in the vertical direction are arranged on the movable clamping plate, the movable clamping heads and the fixed clamping heads are arranged at intervals, and the adjacent movable clamping heads and the fixed clamping heads form a clamping jaw;

the movable clamping plate driving mechanism is used for driving the movable clamping plate to slide relative to the fixed clamping plate, so that the movable clamping heads and the corresponding fixed clamping heads are semi-closed, completely closed or opened, and the movable clamping heads and the corresponding fixed clamping heads clamp the welding strip when being semi-closed; when the movable chuck and the corresponding fixed chuck are completely closed, the welding strip is clamped; and releasing the welding strip when the movable chuck and the corresponding fixed chuck are opened.

3. The solder strip pulling device according to claim 2, wherein the lower end of the fixed chuck or the movable chuck is provided with a support part extending in the horizontal direction, and when the movable chuck and the corresponding fixed chuck clamp the solder strip, the support part performs support and limit on the solder strip.

4. The solder strip take-off device as claimed in claim 2, wherein:

the movable clamping plate driving mechanism comprises a first driving air cylinder and a transmission block, wherein the first driving air cylinder is installed on the fixed clamping plate, the transmission block is connected with the driving end of the first driving air cylinder, the movable clamping plate is connected with the transmission block, and the first driving air cylinder drives the transmission block to move so as to drive the movable clamping plate to slide relative to the fixed clamping plate;

the movable clamping plate driving mechanism further comprises a limiting mechanism, the limiting mechanism comprises a second driving air cylinder and a limiting block, the second driving air cylinder is installed on the fixed clamping plate, the limiting block is installed on the fixed clamping plate in a sliding mode and connected with the driving end of the second driving air cylinder, and the second driving air cylinder is used for driving the limiting block to slide towards or away from the driving block so as to position the limiting block to a preset limiting position or an avoiding position;

when the limiting block is located at the limiting position and the first driving cylinder drives the transmission block to slide towards the limiting block, the transmission block can abut against the limiting block, so that the movable chuck and the corresponding fixed chuck are semi-closed;

when the limiting block is located at the avoiding position and the first driving cylinder drives the transmission block to slide towards the limiting block, the movable chuck and the corresponding fixed chuck are completely closed.

5. The weld ribbon pulling apparatus according to claim 4, wherein the jaw assembly further includes a first side adjustment block and a second side adjustment block disposed on the stationary clamp plate, wherein,

the first side adjusting block is positioned on the first side of the moving path of the limiting block and used for limiting the sliding of the limiting block on the first side of the limiting block;

the second side adjusting block is located on a second side of a moving path of the limiting block and used for limiting the limiting block in a sliding mode on the second side of the limiting block.

6. The solder strip pulling apparatus as claimed in claim 2, wherein said clamping jaw assembly further comprises a solder strip depressing mechanism for depressing the solder strip held in each of said clamping jaws downwardly to adjust the height of each solder strip to be uniform.

7. The solder strip pulling apparatus according to claim 6, wherein the solder strip lowering mechanism includes a lowering cylinder and a lowering plate, wherein the lowering cylinder is mounted on the movable clamp plate, the lowering plate is connected to a driving end of the lowering cylinder and located at a side of each of the clamping jaws, and the lowering cylinder drives the lowering plate to descend, so that the lowering plate is pressed downward against the solder strip held in each of the clamping jaws.

8. The solder ribbon pulling apparatus according to claim 1, wherein the moving mechanism includes a first translating mechanism, a second translating mechanism, and a lifting module, wherein:

the second translation mechanism is connected to a movable part of the first translation mechanism, the lifting module is connected to a movable part of the second translation mechanism, and the mounting plate is connected to a movable part of the lifting module;

the first translation mechanism is used for driving the clamping jaw assembly to translate along a first horizontal direction, the first horizontal direction is parallel to the extending direction of the welding strip, the second translation mechanism is used for driving the clamping jaw assembly to translate along a second horizontal direction, the second horizontal direction is perpendicular to the extending direction of the welding strip, and the lifting module is used for driving the clamping jaw assembly to lift.

9. The solder strip take-off device of claim 8, wherein:

first translation mechanism includes base, first slide rail, first translation driving piece and bottom plate, wherein: the first sliding rail is arranged on the base along the first horizontal direction, the first translation driving part is arranged on the base, the bottom plate is connected to the first sliding rail in a sliding mode and is connected with the driving end of the first translation driving part, and the first translation driving part is used for driving the bottom plate to slide along the first sliding rail;

the second translation mechanism comprises a second slide rail, a second translation driving piece and a sliding support, wherein the second slide rail is arranged on the bottom plate along the second horizontal direction, the second translation driving piece is arranged on the bottom plate, the sliding support is connected to the second slide rail in a sliding manner and is connected with the driving end of the second translation driving piece, and the second translation driving piece is used for driving the sliding support to slide along the second slide rail;

the lifting module is arranged on the sliding support.

10. The solder strip take-off device of claim 9, wherein: the lifting module comprises a lifting driving piece and a driving shaft, the lifting driving piece is fixed on the sliding support, the driving shaft is vertically arranged, the lower end of the driving shaft penetrates through the sliding support in a sliding mode, and the upper end of the driving shaft is fixedly connected with one end of the mounting plate; the driving shaft is provided with a threaded section, a screw nut is assembled on the threaded section, the screw nut is rotatably connected with the sliding support, and the driving end of the lifting driving piece is connected with the screw nut and is used for driving the screw nut to rotate so as to drive the mounting plate to lift;

the moving mechanism further comprises a rotary driving piece and a spline nut, the rotary driving piece is fixed on the sliding support, a spline section is further arranged on the driving shaft, the spline nut is assembled on the spline section of the driving shaft, and a driving end of the rotary driving piece is connected with the spline nut and used for driving the spline nut to rotate so as to drive the mounting plate to rotate in the horizontal direction.

11. A battery string repairing device, comprising a repairing platform, at least one solder strip pulling device according to any one of claims 1 to 10, a heat welding mechanism and a battery plate feeding mechanism, wherein:

the repairing platform is used for bearing a battery string to be repaired, and is matched with the heating welding mechanism to perform desoldering and separation on a defective battery piece in the battery string to be repaired and a welding strip welded on the defective battery piece to obtain a first disassembled battery string and a second disassembled battery string;

the battery piece feeding mechanism is used for feeding replacement battery pieces onto the repair platform to replace the defective battery pieces;

the welding strip traction device is used for dragging and stacking the desoldering welding strip of the first disassembled battery string and the desoldering welding strip of the second disassembled battery string to the appointed position of the replaced battery piece;

and the heating welding mechanism welds the stacked desoldering welding strips to the designated positions of the replaced battery pieces to obtain the repaired battery string.

12. The battery string repair device of claim 11, wherein the repair platform comprises a mounting base, a middle bearing table, a first side bearing table and a second side bearing table, wherein:

the middle bearing table is fixedly arranged on the mounting seat, the first side bearing table is movably connected to the mounting seat and is positioned on the first side of the middle bearing table, and the first side bearing table is configured to be capable of translating towards or away from the middle bearing table; the second side carrier table is movably connected to the mounting base and located on a second side of the middle carrier table, and the second side carrier table is configured to be capable of translating towards or away from the middle carrier table; the first side carrier table and/or the second side carrier table are further configured to be vertically liftable;

the middle bearing platform is used for bearing the defective battery piece or the replacement battery piece, the first side bearing platform is used for bearing the battery piece positioned on the first side of the defective battery piece or the first disassembled battery string, and the second side bearing platform is used for bearing the battery piece positioned on the second side of the defective battery piece or the second disassembled battery string.

13. The battery string repair device of claim 12, wherein a first side of the intermediate carrier table is provided with a first side solder strip straightening mechanism, and a second side of the intermediate carrier table is provided with a second side solder strip straightening mechanism;

the welding strip traction device is used for drawing and laying the desoldering welding strip of the first disassembled battery string on the middle bearing table, and the first side welding strip straightening mechanism is configured to clamp the desoldering welding strip of the first disassembled battery string on a first side; the second side welding strip straightening mechanism is configured to clamp the desoldering welding strip of the first disassembled battery string on a second side and move away from the intermediate bearing table to straighten the desoldering welding strip of the first disassembled battery string, and the replacement battery piece is laid on the desoldering welding strip of the straightened first disassembled battery string.

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