CN210359819U

CN210359819U - Laser welding detects all-in-one

Info

Publication number: CN210359819U
Application number: CN201921421741.1U
Authority: CN
Inventors: 袁楚辉; 陈绕
Original assignee: Allegro Technology Ltd
Current assignee: Dongguan Allegro Intelligent Technology Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-21
Anticipated expiration: 2029-08-29

Abstract

The utility model provides a laser welding detects all-in-one, including the feeding positioning mechanism who is used for carrying the lithium cell, be used for welding lithium cell utmost point ear and carry out the welding detection mechanism that NG material detected, be used for getting rid of the NG discharge mechanism of NG material and be used for retrieving the backward flow stretching strap mechanism of the tool board of placing the lithium cell to the lithium cell utmost point ear after welding. The utility model discloses improvement material loading and welding efficiency that can be great, but also great reduction workman's intensity of labour.

Description

Laser welding detects all-in-one

Technical Field

The utility model relates to a lithium battery tab welding equipment field, in particular to laser welding detects all-in-one for welding lithium battery tab.

Background

The electric core of lithium cell is in the manufacture process, electric core is formed by the stack of multilayer electric core pole piece, every layer of electric core foil stretches out one deck utmost point ear foil, utmost point ear foil also laminates and aligns together after electric core foil aligns, need to weld electric core foil together and form electric core, and form utmost point ear to utmost point ear foil welding together, because utmost point ear foil is very thin, therefore tradition is generally through ultrasonic bonding, bottom die is as supporting in the lower part pad of the utmost point ear foil after the stack during welding, press ultrasonic bonding device's bonding tool on the utmost point ear foil after the stack and exert certain pressure for utmost point ear foil through the bonding tool, then start ultrasonic bonding device, the bonding tool directly outputs the ultrasonic wave, realize the resonance of atom on the adjacent utmost point ear foil under high frequency oscillation, thereby combine utmost point ear foil. In the prior art, the lithium battery is welded by manual feeding, and the manual feeding and welding efficiency is low and the labor intensity of workers is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can improve material loading and welding efficiency, reduce workman intensity of labour's laser welding and detect all-in-one.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a laser welding detects all-in-one for welding lithium cell utmost point ear, including the feeding positioning mechanism who is used for carrying the lithium cell, be used for welding lithium cell utmost point ear and carry out the welding detection mechanism that NG material detected, be used for getting rid of the NG discharge mechanism of NG material and be used for retrieving the backward flow stretching strap mechanism who places the tool board of lithium cell to the lithium cell utmost point ear after welding.

The feeding positioning mechanism comprises a first feeding code sweeping device, a second feeding code sweeping device and a jig plate used for placing a lithium battery, the first feeding code sweeping device is used for sweeping the jig plate provided with the lithium battery to obtain information of the jig plate, the second feeding code sweeping device is also used for conveying the jig plate provided with the lithium battery to the second feeding code sweeping device, the second feeding code sweeping device is used for sweeping the jig plate provided with the lithium battery to obtain information of the lithium battery, and the jig plate provided with the lithium battery is positioned at a welding station.

A yard device is swept to first feeding includes that the first yard device of sweeping, the first yard device of sweeping and first conveyor means of sweeping down, and the first yard device of sweeping is installed at first conveyor means's upper surface for sweep the sign indicating number to the tool board that is equipped with the lithium cell, in order to acquire the information of tool board.

The welding detection mechanism comprises a base, a support frame, a welding device, a detection device and a pressing device, wherein the welding device is connected to the support frame, the detection device is fixed on the welding device, and the detection device adopts a CCD detection device to detect the welded lithium battery; the pressing device can move up and down; the welding device comprises an X-axis driving assembly, a Y-axis driving assembly and a welding head, wherein the welding head adopts a laser welding head, the welding head is fixedly connected to one side of the Y-axis driving assembly, the Y-axis driving assembly is fixed to the X-axis driving assembly, the detection device is fixed to the other side of the Y-axis driving assembly, the welding head is connected with the detection device through a positioning plate, the X-axis driving assembly drives the welding head and the detection device to move in the X-axis direction, and the Y-axis driving assembly drives the welding head and the detection device to move in the Y-axis direction.

The pressing device comprises a fixed frame, a second lifting cylinder and a pressing assembly, the fixed frame is of a rectangular structure, four end corners of the fixed frame are respectively connected with guide pillars, guide sleeves are arranged between the guide pillars and the fixed frame, the second lifting cylinder is provided with two lifting cylinders and arranged on the front side and the rear side of the fixed frame, the second lifting cylinder is fixed on the base through a fixed block, a driving shaft of the second lifting cylinder is in driving connection with the fixed frame, and the second lifting cylinder drives the fixed frame to move up and down; the pressing component is arranged on the rear side of the fixed frame.

The NG discharging mechanism comprises an OK material conveying belt, an NG material conveying belt, a transition device and an NG material removing device, the OK material conveying belt and the NG material conveying belt are symmetrical pieces, the OK material conveying belt and the NG material conveying belt are arranged side by side, the transition device is arranged between the feeding starting ends of the OK material conveying belt and the NG material conveying belt in a crossing mode, and the NG material removing device is arranged on the feeding starting ends of the OK material conveying belt and the NG material conveying belt in a crossing mode.

The transition device comprises a transition plate and L-shaped connecting blocks, the transition plate is arranged between the OK material conveying belt and the NG material conveying belt in a crossing mode, and the L-shaped connecting blocks are respectively arranged between the transition plate and the OK material conveying belt and between the transition plate and the NG material conveying belt.

The backflow belt pulling mechanism comprises a first driving device, a second driving device, a first conveying belt, a second conveying belt and a material pushing device, the first driving device drives the first conveying belt to reciprocate, the second driving device drives the second conveying belt to reciprocate, the second conveying belt is arranged on one side of the first conveying belt, a transition table is fixedly arranged between the first conveying belt and the second conveying belt and connected with the first conveying belt and the second conveying belt, the material pushing device is fixedly arranged on the rear side of the transition table, and one side of the material pushing device is fixedly connected with the first conveying belt.

The material pushing device comprises a fixed plate, an X-axis driving device, a Z-axis driving device and a pushing frame, the X-axis driving device is fixed on the fixed plate, the Z-axis driving device is fixed on the X-axis driving device, the pushing frame is in driving connection with the Z-axis driving device, the pushing frame is arranged above the transition table, the Z-axis driving device drives the pushing frame to move up and down on the fixed plate, and the X-axis driving device drives the Z-axis driving device to move left and right on the fixed plate; at least one infrared sensor is arranged on the first conveyor belt and the second conveyor belt respectively, and the infrared sensors correspond to the transition table in position.

The X-axis driving device is a rodless cylinder which comprises a cylinder body and a sliding seat, the cylinder body is fixed on the fixing plate, one end of the sliding seat is connected with the cylinder body in a sliding mode, and the other end of the sliding seat is connected with the Z-axis driving device through a supporting plate.

The utility model has the advantages that:

the utility model discloses a feeding positioning mechanism is used for acquireing the information on tool board and the lithium cell, after the information is acquireed, feeding positioning mechanism continues to carry tool board and lithium cell on the welding detection mechanism, welding detection structure detects tool board and lithium cell after targetting in place, begin to weld the utmost point ear of lithium cell, after welding, whether the lithium cell after welding is detected to the detection device among the welding detection mechanism has NG material, after detecting, arrange NG material fast through NG discharging mechanism, the lithium cell of NG and OK at last is taken out from the tool board, empty tool board then carries feeding positioning mechanism department through backward flow stretching strap mechanism, to sum up, the utility model discloses great improvement material loading and welding efficiency, but also great reduction workman's intensity of labour.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural diagram of the feeding positioning mechanism of the present invention;

FIG. 3 is a schematic view of a part of the structure of the feeding positioning mechanism of the present invention;

fig. 4 is a schematic structural view of a first feeding code scanning device of the present invention;

fig. 5 is a schematic structural diagram of a first code scanning device according to the present invention;

fig. 6 is a schematic structural view of a second code scanning device according to the present invention;

fig. 7 is a schematic structural view of a second conveying device of the present invention;

fig. 8 is a schematic structural view of the width adjustment device of the present invention;

fig. 9 is a schematic structural diagram of the positioning device of the present invention;

FIG. 10 is a schematic view of the belt tension adjusting device of the present invention;

fig. 11 is a schematic structural view of a jig plate of the present invention;

fig. 12 is a schematic structural view of the welding detection mechanism of the present invention;

fig. 13 is a side view of the welding detection mechanism of the present invention;

fig. 14 is a side view of the stitching device of the present invention;

FIG. 15 is an enlarged partial schematic view at A of FIG. 14;

fig. 16 is a schematic perspective view of the NG discharging mechanism of the present invention;

fig. 17 is a front view of the NG discharging mechanism of the present invention;

fig. 18 is a partially enlarged schematic view at a of fig. 17;

fig. 19 is a left side view of the NG discharging mechanism of the present invention;

FIG. 20 is a schematic structural view of the backflow strip mechanism of the present invention;

fig. 21 is a schematic structural view of the pushing device of the present invention;

fig. 22 is a schematic structural view of the transition table of the present invention.

Detailed Description

The invention is further explained below with reference to the drawings:

as shown in figure 1, the laser welding and detection integrated machine is used for welding a lithium battery tab and comprises a feeding and positioning mechanism 1 used for conveying a lithium battery, a welding and detection mechanism 2 used for welding the lithium battery tab and carrying out NG material detection on the welded lithium battery tab, an NG discharging mechanism 3 used for removing the NG material and a backflow belt mechanism 4 used for recycling a jig plate for placing the lithium battery.

As shown in fig. 2, feeding and positioning mechanism 1 for carry the lithium cell to weld in welding detection mechanism 2, sweep yard device 11 including first feeding, yard device 12 and the tool board that is used for placing the lithium cell is swept to the second feeding, yard device 11 is swept to first feeding is used for sweeping the sign indicating number to the tool board that is equipped with the lithium cell and acquires the information of tool board, and still be used for carrying the second feeding to sweep yard device 12 with the tool board that is equipped with the lithium cell, yard device 12 is swept to the second feeding and is used for sweeping the sign indicating number to the tool board that is equipped with the lithium cell and acquires the information of lithium cell, and carry out the location when welding to the tool board that is equipped with the lithium cell.

As shown in fig. 3 to 5, the first feeding code scanning device 11 includes a first upper code scanning device 111, a first lower code scanning device 112 and a first conveyor belt device 113, the first upper code scanning device 111 is installed on the upper surface of the first conveyor belt device 113, and is configured to scan a code of a jig board equipped with a lithium battery to obtain information of the jig board, in addition, the first lower code scanning device 112 is further provided in this embodiment, and is installed at the bottom of the first conveyor belt device 113, and is configured to scan a code of a jig board equipped with a lithium battery to obtain information of the jig board, and the first conveyor belt device 113 is configured to convey the jig board equipped with a lithium battery to the second feeding code scanning device 12.

As shown in fig. 6 to 7, the second feeding and code scanning device 12 includes a second code scanning device 114 and a second conveying device 115, the second code scanning device 114 is disposed above the second conveying device 115, the second code scanning device 114 is used for scanning codes of the lithium batteries to obtain information of the lithium batteries, and the second conveying device 115 is used for conveying the jig plates with the lithium batteries to the welding position for positioning.

As shown in fig. 4, the first scanning device 111 includes a first supporting frame 1111 and a first upper scanner 1112, and the first upper scanner 1112 is mounted on the first conveyor 113 through the first supporting frame 1111.

As shown in fig. 5, the first lower code scanning device 112 includes a second supporting frame 1121 and a second lower code scanner 1122, and the second lower code scanner 1122 is installed below the first belt conveyor 113 through the second supporting frame 1121.

As shown in fig. 3, the first belt conveyor 113 includes a first conveying belt 1131, a first motor 1132, a first mounting plate 1133 and a first guide rail 1134, the first mounting plate 1133 is respectively disposed at the front and rear sides of the first motor 1132, the first conveying belt 1131 is respectively mounted on the first mounting plate 1133 through a first roller, the first guide rail 1134 is respectively mounted on the first mounting plate 1133 and is used for supporting the first conveying belt 1131, and when the jig plate is placed on the first conveying belt 1131, the first conveying belt 1131 is pressed onto the first guide rail 1134.

As shown in fig. 10, the first belt conveying device 113 further includes a belt tension adjusting device 1135, the belt tension adjusting device 1135 is installed inside the first installation plate 1133, the belt tension adjusting device 1135 includes a tension wheel 1135a, an installation block 1135b and an installation bracket 1135c, the lower end of the installation bracket 1135c is installed inside the first installation plate through the installation block 1135b, the tension wheel 1135a is installed at the upper end of the installation bracket 1135c, and the tension wheel 1135a can bring the first conveying belt 1131 located below the first guide rail 1134 downward, so that the first conveying belt 1131 is tensioned downward.

As shown in fig. 6, the second upper code scanning device 114 includes a third supporting frame 1141 and a second upper code scanner 1142, and the second upper code scanner 1142 is mounted on the second discharge side plate 116 via the third supporting frame 1141.

As shown in fig. 7, the second conveyor 115 includes a second linear motor 1151, a second guide rail 1152, a second sliding plate 1153, a first material gripping hand 1154 and a second material gripping hand 1155, the second sliding plate 1153 is mounted on the second guide rail 1152, the first material gripping hand 1154 and the second material gripping hand 1155 are mounted on the second sliding plate 1153, and the second linear motor 1151 can drive the second sliding plate 1153 to move along the second guide rail 1152, so as to drive the first material gripping hand 1154 and the second material gripping hand 1155 to move.

The first gripper 1154 includes a first cylinder 1154a, a first gripper plate 1154b and a first jaw piece 1154c,

the first gripping plate 1154b is installed on the first cylinder 1154a, the first claw blocks 1154c are respectively installed on two sides of the first gripping plate 1154b, and the first cylinder 1154a can drive the first gripping plate 1154b to drive the first claw blocks 1154c to perform lifting movement. The distance between the two first jaw pieces 1154c is just enough to accommodate the jig plate.

The second material grabbing hand 1155 comprises a second air cylinder 1155a, a second grabbing plate 1155b and a second claw block 1155c, the second grabbing plate 1155b is installed on the second air cylinder 1155a, the second claw blocks 1155c are respectively installed on two sides of the second grabbing plate 1155b, and the second air cylinder 1155a can drive the second grabbing plate 1155b to drive the second claw block 1155c to move up and down. The distance between the two second jaw pieces 1155c is just enough to accommodate the jig plate.

The second feeding and code scanning device 12 further comprises a second feeding side plate 116, two infrared positioning sensing devices 117, a positioning device 118 and a width adjusting device 119, the second feeding side plate 116 is butted with the first conveyor belt device 113, the number of the second feeding side plate 116 is two, the infrared positioning sensing devices 117 are arranged on one side of the second feeding side plate 116, the positioning device 118 is arranged on the other side of the second feeding side plate 116, and the width adjusting device 119 is arranged at the bottom of the second feeding side plate 116 and is used for adjusting the distance between the two second feeding side plates 116.

As shown in fig. 9, the positioning device 118 includes an installation seat, a positioning cylinder and a positioning rod, the positioning cylinder is installed on the side edge of the second material placing plate through the installation seat, and the positioning rod is installed on the positioning cylinder and corresponds to the jig plate.

As shown in fig. 8, the width adjusting device 119 includes an adjusting bottom plate, an adjusting guide rail, an adjusting screw rod, and an adjusting hand wheel, the second discharge side plate 116 is mounted on the adjusting bottom plate, the adjusting bottom plate is mounted on the adjusting guide rail, and the adjusting hand wheel can adjust the distance between the second discharge side plates 116 through the adjusting screw rod.

As shown in fig. 11, four lithium battery placing grooves 31 are provided on the upper surface of the jig plate, and positioning grooves 32 are provided on the side edges of the jig plate.

According to the invention, by arranging the first feeding code scanning device 11, the second feeding code scanning device 12 and the jig plate for placing the lithium battery, when loading, the lithium battery is firstly placed in the lithium battery placing groove 131 of the jig plate, and then the jig plate is placed on the first conveyor belt device 113 in the first feeding code scanning device 11; when the bar code is located on the surface of the jig plate, the bar code information on the surface of the jig plate can be scanned by the first up-scanning device 111, the bar code information of the lower surface of the jig plate can be scanned by the first lower scanning device 112, after the jig boards are stacked, the first conveyor 113 conveys the jig boards to the second feeding and stacking device 12, when the jig plate is sensed by the infrared positioning sensing device 117, the positioning device 118 drives the positioning ejector rod to position the jig plate, after the positioning, the second code scanning device 114 scans the codes of the lithium batteries on the jig plate, after the codes are scanned, the second conveying device 115 conveys the tool plate to the welding position after the codes are scanned, after the jig plate is positioned by the other infrared positioning sensing device 117 and the positioning device 118, the welding procedure is convenient for welding the tabs of the lithium battery.

As shown in fig. 12 to 13, the welding detection mechanism includes a base 21, a support frame 22, a welding device 23, a detection device 24, and a pressing device 25, where the welding device 23 is connected to the support frame 22, the detection device 24 is fixed on the welding device 23, and the detection device 24 uses a CCD detection device to detect the welded lithium battery; the pressing device 25 can move up and down; the welding device 23 comprises an X-axis driving assembly 231, a Y-axis driving assembly 232 and a welding head 233, wherein the welding head 233 adopts a laser welding head, the welding head 233 is fixedly connected to one side of the Y-axis driving assembly 232, the Y-axis driving assembly 232 is fixedly connected to the X-axis driving assembly 231, the detection device 24 is fixedly connected to the other side of the Y-axis driving assembly 232, the welding head 233 and the detection device 24 are connected through a positioning plate, the X-axis driving assembly 232 drives the welding head 233 and the detection device 24 to move in the X-axis direction, and the Y-axis driving assembly 232 drives the welding head 233 and the detection device 24 to move in the Y. The X-axis drive assembly 231 and the Y-axis drive assembly 232 are both rodless cylinders.

As shown in fig. 14, the pressing device 25 includes a fixed frame 251, a second lifting cylinder 252 and a pressing assembly 253, the fixed frame 251 is of a rectangular structure, four end corners of the fixed frame 251 are respectively connected with guide posts 254, a guide sleeve 255 is arranged between the guide post 254 and the fixed frame 251, two second lifting cylinders 252 are arranged at front and rear sides of the fixed frame 251, the second lifting cylinders 252 are fixed on the base 21 through the fixed blocks 256, a driving shaft of the second lifting cylinder 252 is in driving connection with the fixed frame 251, and the second lifting cylinders 252 drive the fixed frame 251 to move up and down; the pressing assembly 253 is disposed at the rear side of the fixing frame 251.

As shown in fig. 15, the pressing assembly 253 includes a connecting bar 2531 and a plurality of pressing jigs 2532 having the same structure, the pressing jigs 2532 are fixed on the connecting bar 2531 side by side, two sides of the connecting bar 2531 are respectively fixed to the fixing frame 251, the pressing jig 2532 includes a first connecting block 2532a, second connecting block 2532b and briquetting 2532c, second connecting block 2532b is fixed at first connecting block 2532a front side, first connecting block 2532a is fixed on connecting strip 2531, briquetting 2532c elastic connection is on second connecting block 2532b, briquetting 2532 c's top and second connecting block 2532b pass through compression spring to be connected, be equipped with slider assembly 2532d between briquetting 2532 c's rear side and the second connecting block 2532b, slider assembly 2532d includes slide rail and slider, the slide rail is fixed on second connecting block 2532b, slider one end sliding connection is on the slide rail, the other end and the briquetting 2532c fixed connection of slider. The compression spring and the sliding block assembly 2532d which are arranged can play a certain role in buffering and guiding the pressing block 2532c when the pressing block is pressed down to the pole lug, and the pole lug is prevented from being damaged due to overlarge pressure.

As shown in fig. 16, the NG discharging mechanism includes an OK material conveyer belt 31, an NG material conveyer belt 32, a transition device 33, and an NG material removing device 34, the OK material conveyer belt 31 and the NG material conveyer belt 32 are symmetrical members, the OK material conveyer belt 31 and the NG material conveyer belt 32 are arranged side by side, the transition device 33 is arranged across between the feeding start ends of the OK material conveyer belt 31 and the NG material conveyer belt 32, and the NG material removing device 34 is arranged across the feeding start ends of the OK material conveyer belt 31 and the NG material conveyer belt 32.

As shown in fig. 17, the OK material conveyer belt 31, the NG material conveyer belt 32, and the NG material discharging device 34 are all installed on a bottom plate, and the bottom plate is installed on a rack.

As shown in fig. 18, the transition device 33 includes a transition plate 331 and L-shaped connecting blocks, the transition plate 331 is disposed between the OK material conveyer belt 31 and the NG material conveyer belt 32, and the L-shaped connecting blocks are respectively installed between the transition plate 331 and the OK material conveyer belt 31 and between the transition plate 31 and the NG material conveyer belt 32.

The top surface of the transition plate 331 is a plane, one side of the transition plate 331 facing the OK material conveying belt 31 is provided with a first inclined surface structure 333, the lowest point of the first inclined surface structure 333 is lower than the upper surface of the belt of the OK material conveying belt 31, and the jig plate can smoothly slide onto the transition plate 331 through the first inclined surface structure 333.

One side of the transition plate 331 facing the NG material conveying belt 32 is provided with a second inclined surface structure 334, the lowest point of the second inclined surface structure 334 is higher than the upper surface of the belt of the NG material conveying belt 32, and the jig plate smoothly falls on the NG material conveying belt 32 through the second inclined surface structure 334.

As shown in fig. 19, the NG material removing device 34 includes a gantry 341, a driving assembly 342, a moving plate 343 and a pushing plate 344, the gantry 341 is arranged above the feeding start ends of the OK material conveyer belt 31 and the NG material conveyer belt 32 in a crossing manner, the driving assembly 342 is fixedly arranged below the upper portion of the gantry 341, the moving plate 343 is fixedly arranged below the driving portion of the driving assembly 342, the pushing plate 344 is fixedly connected with the moving plate 343, the pushing plate 344 is perpendicular to the moving plate 343, and the driving assembly 342 drives the moving plate 343 to drive the pushing plate 344 to make linear motion.

The portal frame 341 includes a top plate and a base, the base is respectively vertically installed under both ends of the length direction of the top plate, the base includes a foot block and a support shaft, and the support shaft is respectively vertically installed on both ends of the length direction of the foot block.

The drive assembly 342 is a Y-axis linear module.

The drive assembly 342 is a magnetic couple rodless cylinder.

The gantry type magnetic coupling device further comprises a linear guide rail, a moving block and a buffer component 3453, wherein the linear guide rail and the buffer component 3453 are fixedly arranged below the upper portion of the gantry 341 and are positioned on the left side or the right side of the magnetic coupling type rodless cylinder, and the moving block is fixedly arranged below a sliding block of the linear guide rail.

The drive part of the magnetic couple type rodless cylinder can be shared by setting the linear guide rail and the moving block to receive the pulling force from the moving plate 343 and the pushing plate 344 under the action of gravity, the service life of the magnetic couple type rodless cylinder is prolonged, the impact force generated when the drive end of the magnetic couple type rodless cylinder moves in place can be reduced through the buffer assembly, and the fact that the original jig plate which slides in place is influenced by the impact force to cause the jig plate to partially slide out of an NG material conveyor belt is prevented.

The OK material conveying belt 31 and the NG material conveying belt 32 are respectively and fixedly provided with a supporting plate, and the supporting plates are respectively used for supporting the upper belt sections of the OK material conveying belt 31 and the NG material conveying belt 32, so that when a jig plate is pressed on the OK material conveying belt 31 or the NG material conveying belt 32, the jig plate cannot slide onto the first inclined plane structure 333 due to the fact that the jig plate sinks due to the fact that the upper belt sections are concave and deformed under the action of gravity of the jig plate, and the lowest point of the bottom surface of the jig plate is lower than the first inclined plane structure 333.

The soft-packaged lithium battery with the badly-welded tabs is an NG material, otherwise, the soft-packaged lithium battery is an OK material, when the detection mechanism detects that the soft-packaged lithium battery is the NG material, the detection mechanism sends an electric signal to inform the PLC controller, the PLC controller firstly controls the conveying line to drive the jig plate filled with the NG material to continuously move towards the tail end of the conveying line, when the sensor at the tail end of the conveying line detects the jig plate, the PLC controller sends an electric signal to the PLC controller, the OK material conveying belt 31 is controlled to start to work to drive the jig plate to move towards the tail end of the feeding of the OK material conveying belt 31, when the jig plate is completely positioned on the OK material conveying belt 31, the PLC controller controls the OK material conveying belt 31 to stop working, then the PLC controller controls the driving component 342 to drive the movable plate 343 to drive the push plate 344 to drive the jig plate to slide towards the NG material conveying belt 32, and in the process, The top surface and the second inclined surface 334 of the transition plate 331 finally slide onto the NG material conveying belt 32, at this time, the PLC controls the NG material discharging device 34 to reset, and meanwhile, the PLC controls the NG material conveying belt 32 to drive the jig plate to move to the feeding tail end of the NG material conveying belt 32 to convey NG materials; when the detection mechanism detects that the soft package lithium battery is OK material, the PLC controller controls the NG material removing device 34 not to work, and the PLC controller controls the OK material conveying belt 31 to drive the jig plate filled with the OK material to move to the feeding tail end of the OK material conveying belt 31 to output the OK material.

Compared with the prior art, the utility model discloses a NG material remove device 34 replaces manual drive to be equipped with the tool board that NG material moves and realizes using manpower sparingly, realizes through transition device 33 that the tool board that is equipped with NG material can slide to NG material conveyer belt 32 from OK material conveyer belt 31 fast on, has improved work efficiency.

Further, the device also comprises a first in-place sensor 35, a second in-place sensor 36 and a blocking block 37, wherein the first in-place sensor 35 is a photoelectric switch, the second in-place sensor 36 is a photoelectric switch sensor or a correlation photoelectric sensor, the first in-place sensor 35 is respectively arranged at the feeding start ends of the OK material conveying belt 31 and the NG material conveying belt 32, the second in-place sensor 36 is respectively arranged at the feeding tail ends of the OK material conveying belt 31 and the NG material conveying belt 32, and the blocking block 37 is respectively arranged at the feeding tail ends of the OK material conveying belt 31 and the NG material conveying belt 32 in a crossing manner. The first in-place sensor 35 and the second in-place sensor 36 are electrically connected with the PLC, and the first in-place sensor 35 and the second in-place sensor 36 are electrically connected with the power supply.

The in-place sensor I35 and the in-place sensor II 36 are used for feeding back electric signals to the PLC after detecting the jig plate so as to improve the control precision of the PLC, when the detection mechanism detects that the soft-package lithium battery is NG, the detection mechanism sends the electric signals to inform the PLC, the PLC controls the in-place sensor I on the OK material conveying belt 31 to be electrified to work and controls the OK material conveying belt 31 to start working, the PLC sets the delay time of the in-place sensor I35 on the OK material conveying belt 31 in the debugging stage, when the in-place sensor I35 detects the jig plate provided with the NG material at the feeding beginning end of the OK material conveying belt 31, countdown is started, the countdown time is the delay time, when the countdown is finished, the sensing line of the in-place sensor I35 basically irradiates the longitudinal central line position of the jig plate to indicate that the jig plate moves in place, at this time, the in-place sensor sends an electric signal to the PLC controller to control the OK material conveyer belt 31 to stop working and then controls the NG material removing device 34 to drive the jig plate to slide to the feeding start end of the NG material conveyer belt 32, the in-place sensor on the NG material conveyer belt 32 sends an electric signal to the PLC controller to control the NG material conveyer belt 32 to drive the jig plate to move to the feeding end of the NG material conveyer belt 32 when detecting the jig plate, and the in-place sensor II 36 on the NG material conveyer belt 32 sends an electric signal to the PLC controller to control the NG material conveyer belt 32 to stop working when detecting the jig plate,

when the detection mechanism detects that the soft package lithium battery is OK material, the detection mechanism sends an electric signal to inform the PLC controller, the PLC controller controls the in-place sensor I35 and the NG material removing device 34 on the OK material conveying belt 31 to stop working, meanwhile, the OK material conveying belt 31 is controlled to continuously work, and when a jig plate filled with OK material moves to the tail end of the feeding of the OK material conveying belt 31, the in-place sensor II 36 on the OK material conveying belt 31 detects that the jig plate sends an electric signal to the PLC controller to control the OK material conveying belt 31 to stop working through the jig plate.

The blocking block 37 is used for blocking the jig plate, so that when the OK material conveyor belt 31 or the NG material conveyor belt 32 stops working, the jig plate on the feeding end of the OK material conveyor belt 31 or the NG material conveyor belt 32 can slide out of the feeding end under the action of inertia to cause the jig plate to fall on the ground.

As shown in fig. 20 to 22, the backflow strip mechanism includes a first driving device 41, a second driving device 42, a first conveyor belt 43, a second conveyor belt 45, and a material pushing device 46, where the first driving device 41 drives the first conveyor belt 43 to reciprocate, the second driving device 42 drives the second conveyor belt 45 to reciprocate, and both the first driving device 41 and the second driving device 42 are driven by a combination of a motor and a gear in the prior art; the second conveyor belt 45 is arranged on one side of the first conveyor belt 43, a transition table 44 is fixedly arranged between the first conveyor belt 43 and the second conveyor belt 45, the transition table 44 is connected with the first conveyor belt 43 and the second conveyor belt 45, the material pushing device 46 is fixedly arranged on the rear side of the transition table 44, and one side of the material pushing device 46 is fixedly connected with the first conveyor belt 43.

The pushing device 46 comprises a fixed plate 461, an X-axis driving device 462, a Z-axis driving device 463 and a pushing frame 464, wherein the X-axis driving device 462 is fixed on the fixed plate 461, the Z-axis driving device 463 is fixed on the X-axis driving device 462, the pushing frame 464 is in driving connection with the Z-axis driving device 463, the pushing frame 464 is arranged above the transition table 44, the Z-axis driving device 463 drives the pushing frame 464 to move up and down on the fixed plate 461, and the X-axis driving device 462 drives the Z-axis driving device 463 to move left and right on the fixed plate 461; at least one infrared sensor 47 is respectively arranged on the first conveyor belt 43 and the second conveyor belt 45, and the infrared sensor 47 corresponds to the position of the transition table 44.

The X-axis driving device 462 is a rodless cylinder, which includes a cylinder body and a sliding seat, the cylinder body is fixed on the fixing plate 461, one end of the sliding seat is connected with the cylinder body in a sliding manner, and the other end of the sliding seat is connected with the Z-axis driving device 463 through a supporting plate 4631.

The Z-axis driving device 463 is a lifting cylinder fixed on the supporting plate 4631, and a driving shaft of the lifting cylinder is fixedly connected with the pushing frame 464.

The transition table 44 is provided with inclined surfaces 441 inclined downward on the left and right sides thereof, respectively. The inclined surface 441 arranged on the transition table 44 is convenient for avoiding the jig plate from being jammed when being conveyed from the first conveyor belt 43 to the second conveyor belt 45, so that the pushing is interrupted.

A baffle 442 is fixedly arranged on the outer side of the transition table 44. The baffle 442 prevents the jig plate from sliding off the transition table 44.

The upper and lower sides of the X-axis driving device 462 are respectively provided with a first guiding device 465, the first guiding device 465 comprises a first sliding rail and a first sliding block, the first sliding block slides on the first sliding rail respectively, and the first sliding block is fixedly connected with the supporting plate 4631 respectively.

First conveyer belt 43 is linked together with the unloader on the production line, when the tool board after using carries the infra red ray induction zone on first conveyer belt 43 from first conveyer belt 43, push away frame 464 on blevile of push 46 is downstream under the drive of Z axle drive arrangement 463, tool board parcel on first conveyer belt 43 is in the push pedal, X axle drive arrangement 462 drive push pedal is transferred towards second conveyer belt 45 direction, the tool board gets into second conveyer belt 45 behind transition platform 44, the push pedal upward movement, then reset, after the infra red ray induction device on second conveyer belt 45 senses the tool board, second drive arrangement 42 drives second conveyer belt 45 and tool board and moves forward, treat that next tool board carries out the propelling movement. The second conveyor belt 45 can be communicated with a feeding device on the production line to recycle the jig plates.

The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a laser welding detects all-in-one for welding lithium battery tab, its characterized in that: including the feeding positioning mechanism who is used for carrying the lithium cell, be used for welding lithium cell utmost point ear and carry out the welding detection mechanism that NG material detected to the lithium cell utmost point ear after welding, be used for getting rid of NG discharging mechanism of NG material and be used for retrieving the backward flow stretching strap mechanism who places the tool board of lithium cell.

2. The laser welding detection all-in-one machine of claim 1, characterized in that: the feeding positioning mechanism comprises a first feeding code sweeping device, a second feeding code sweeping device and a jig plate used for placing a lithium battery, the first feeding code sweeping device is used for sweeping the jig plate provided with the lithium battery to obtain information of the jig plate, the second feeding code sweeping device is also used for conveying the jig plate provided with the lithium battery to the second feeding code sweeping device, the second feeding code sweeping device is used for sweeping the jig plate provided with the lithium battery to obtain information of the lithium battery, and the jig plate provided with the lithium battery is positioned at a welding station.

3. The laser welding detection all-in-one machine of claim 2, characterized in that: a yard device is swept to first feeding includes that the first yard device of sweeping, the first yard device of sweeping and first conveyor means of sweeping down, and the first yard device of sweeping is installed at first conveyor means's upper surface for sweep the sign indicating number to the tool board that is equipped with the lithium cell, in order to acquire the information of tool board.

4. The laser welding detection all-in-one machine of claim 1, characterized in that: the welding detection mechanism comprises a base, a support frame, a welding device, a detection device and a pressing device, wherein the welding device is connected to the support frame, the detection device is fixed on the welding device, and the detection device adopts a CCD detection device to detect the welded lithium battery; the pressing device can move up and down; the welding device comprises an X-axis driving assembly, a Y-axis driving assembly and a welding head, wherein the welding head is fixedly connected to one side of the Y-axis driving assembly, the Y-axis driving assembly is fixed to the X-axis driving assembly, the detection device is fixed to the other side of the Y-axis driving assembly, the welding head is connected with the detection device through a positioning plate, the X-axis driving assembly drives the welding head and the detection device to move in the X-axis direction, and the Y-axis driving assembly drives the welding head and the detection device to move in the Y-axis direction.

5. The laser welding detection all-in-one machine according to claim 4, characterized in that: the pressing device comprises a fixed frame, a second lifting cylinder and a pressing assembly, four end corners of the fixed frame are respectively connected with guide pillars, guide sleeves are arranged between the guide pillars and the fixed frame, the second lifting cylinder is arranged on the front side and the rear side of the fixed frame, the second lifting cylinder is fixed on the base through a fixed block, a driving shaft of the second lifting cylinder is in driving connection with the fixed frame, and the second lifting cylinder drives the fixed frame to move up and down; the pressing component is arranged on the rear side of the fixed frame.

6. The laser welding detection all-in-one machine of claim 1, characterized in that: the NG discharging mechanism comprises an OK material conveying belt, an NG material conveying belt, a transition device and an NG material removing device, the OK material conveying belt and the NG material conveying belt are symmetrical pieces, the OK material conveying belt and the NG material conveying belt are arranged side by side, the transition device is arranged between the feeding starting ends of the OK material conveying belt and the NG material conveying belt in a crossing mode, and the NG material removing device is arranged on the feeding starting ends of the OK material conveying belt and the NG material conveying belt in a crossing mode.

7. The laser welding detection all-in-one machine of claim 6, characterized in that: the transition device comprises a transition plate and L-shaped connecting blocks, the transition plate is arranged between the OK material conveying belt and the NG material conveying belt in a crossing mode, and the L-shaped connecting blocks are respectively arranged between the transition plate and the OK material conveying belt and between the transition plate and the NG material conveying belt.

8. The laser welding detection all-in-one machine of claim 1, characterized in that: the backflow belt pulling mechanism comprises a first driving device, a second driving device, a first conveying belt, a second conveying belt and a material pushing device, the first driving device drives the first conveying belt to reciprocate, the second driving device drives the second conveying belt to reciprocate, the second conveying belt is arranged on one side of the first conveying belt, a transition table is fixedly arranged between the first conveying belt and the second conveying belt and connected with the first conveying belt and the second conveying belt, the material pushing device is fixedly arranged on the rear side of the transition table, and one side of the material pushing device is fixedly connected with the first conveying belt.

9. The laser welding detection all-in-one machine of claim 8, characterized in that: the material pushing device comprises a fixed plate, an X-axis driving device, a Z-axis driving device and a pushing frame, the X-axis driving device is fixed on the fixed plate, the Z-axis driving device is fixed on the X-axis driving device, the pushing frame is in driving connection with the Z-axis driving device, the pushing frame is arranged above the transition table, the Z-axis driving device drives the pushing frame to move up and down on the fixed plate, and the X-axis driving device drives the Z-axis driving device to move left and right on the fixed plate; at least one infrared sensor is arranged on the first conveyor belt and the second conveyor belt respectively, and the infrared sensors correspond to the transition table in position.

10. The laser welding detection all-in-one machine of claim 9, characterized in that: the X-axis driving device is a rodless cylinder which comprises a cylinder body and a sliding seat, the cylinder body is fixed on the fixing plate, one end of the sliding seat is connected with the cylinder body in a sliding mode, and the other end of the sliding seat is connected with the Z-axis driving device through a supporting plate.