CN219900779U - Welding device - Google Patents

Abstract

The utility model provides a welding device which comprises an annular conveying bus, a battery cell jig driven by the conveying bus, a battery cell feeding mechanism, a cover plate detection mechanism, a welding mechanism, a dust removal and detection mechanism, a rubberizing mechanism, a cover plate feeding mechanism, a jig dust removal mechanism and a blanking mechanism, wherein the battery cell feeding mechanism, the cover plate detection mechanism, the welding mechanism, the dust removal and detection mechanism, the rubberizing mechanism, the cover plate feeding mechanism, the jig dust removal mechanism and the blanking mechanism are arranged along the line of the conveying bus. The cover plate feeding mechanism is used for conveying the cover plate to the battery cell jig. The jig dust removing mechanism is used for carrying out dust removing treatment on the battery cell jig with the cover plate, and the battery cell feeding mechanism is used for conveying the battery cells to be welded and pressing the battery cells on the cover plate. The cover plate detection mechanism is used for detecting the relative position of the lug and the cover plate, and the welding mechanism is used for laser welding treatment. The dust removing and detecting mechanism is used for carrying out dust removing treatment and detecting treatment on the welding marks between the lugs and the cover plate. The rubberizing mechanism is used for rubberizing the adhesive tape on the detected welding marks. The welding device reduces the actions of grabbing and loading and unloading the battery cells among the working procedures, improves the production efficiency and shortens the production beat.

Description

welding device

Technical field

The utility model relates to the technical field of battery core welding, in particular to a welding device.

Background technique

As global climate change intensifies, the use of traditional fossil energy is gradually replaced by new energy. Countries are also accelerating the development and application of new energy. Among them, the proportion of new energy vehicles in all cars is also increasing. Blade batteries are a kind of The demand for batteries with higher energy density is also increasing day by day, and the requirements for their process requirements and assembly technology are becoming more and more stringent. Among them, the welding of the positive tab cover and the battery core is an indispensable step in the blade battery assembly process. The quality of the welding also affects the performance of the battery and driving safety to a certain extent.

The welding of the battery core and the positive tab cover requires processes such as transportation, cleaning, welding, dust removal, and loading and unloading. At present, the welding process of blade battery positive tab cover plate has a low degree of integration and low space utilization. In addition, the existing welding equipment uses robot grasping to transfer between various processes, resulting in a high number of battery cell grabbing and turnover times, and it is also easy to increase the number of NG battery cells, which not only affects the production rhythm, but also easily causes the production line to be damaged. The NG products in the production line are retained, affecting the operation of the entire production line.

Utility model content

In view of this, the present utility model aims to propose a welding device that not only integrates the process equipment for welding the lug cover plate and the battery core, but also can reduce the number of battery core grabbing and turnover times to ensure the smooth operation of the entire production line.

In order to achieve the above purpose, the technical solution of the present invention is achieved as follows:

A welding device, including an annular conveyor bus, a cell fixture driven by the conveyor bus, and a cell loading mechanism, a cover detection mechanism, a welding mechanism, a dust removal and detection mechanism arranged along the conveyor bus mechanism, glue application mechanism, cover loading mechanism, jig dust removal mechanism and unloading mechanism;

When the transport bus drives the battery core fixture to move, the cover plate loading mechanism is used to transport the cover plate to the battery core fixture;

The fixture dust removal mechanism is used to perform dust removal treatment on the battery core fixture with the cover plate;

The battery core loading mechanism is used to transport the battery core to be welded to the dust-removed battery core fixture, and press the tab of the battery core onto the cover plate;

The cover detection mechanism is used to detect the relative position of the tab and the cover;

The welding mechanism is used to perform laser welding processing on the detected pole tab and the cover plate;

The dust removal and detection mechanism is used to remove dust from the welding mark between the pole tab and the cover plate, and to detect the welding mark after dust removal;

The adhesive applying mechanism is used to apply adhesive tape to the detected welding print and detect the bonding status of the adhesive tape;

The unloading mechanism is used to unload the glued electric core.

Further, the conveyor bus includes a first X-direction conveyor line, a first Y-direction conveyor line, a second X-direction conveyor line and a second Y-direction conveyor line connected end to end and forming a ring;

The battery core loading mechanism, the cover plate detection mechanism, the welding mechanism, the dust removal and detection mechanism and the glue applying mechanism are sequentially arranged along the first X-direction conveying line;

The cover plate loading mechanism, the jig dust removal mechanism and the unloading mechanism are respectively arranged along the first Y-direction conveying line, along the second X-direction conveying line and the Along the second Y-direction conveyor line.

Further, the first X-direction conveying line body includes a first X-direction rail extending along the X-direction, and a first X-direction rail for driving the battery core fixture to slide back and forth on the first X-direction rail. X-direction drive part.

Further, a shift fork is connected to the driving end of the first X-direction driving part, and a limiting groove is provided on the battery core fixture. The shift fork can slide into the limiting groove to form a The transmission connection between the first X-direction driving part and the battery core fixture.

Further, the first Y-direction conveying line body includes a first Y-direction driving part, and a first sliding seat driven by the first Y-direction driving part and sliding back and forth along the Y-direction, and the first sliding seat is provided with There is a first sub-guide rail arranged along the X-direction. When the first Y-direction driving part drives the first sliding seat to slide to the first X-direction conveying line body, the first sub-guide rail can interact with the The first X-direction rail is connected to the rail and carries the battery core jig transported by the first X-direction conveyor line.

Further, a loading transfer mechanism is provided between the battery core loading mechanism and the first X-direction conveying line body, and the loading transfer mechanism is used to transport the batteries to be welded that are transported by the battery core loading mechanism. Turn the battery core 90°, and adjust the position of the casing and pole group in the battery core at the positive end; and/or,

A blanking transfer mechanism is provided between the second Y-direction conveying line and the blanking mechanism. The blanking transfer mechanism is at least used to turn the glued battery core to 90°.

Further, the feeding transfer mechanism includes a flipping mechanism with a battery core clamp, and a rotating platform for driving the flipping mechanism to rotate in the XY plane;

The battery core clamp is installed on the rotating platform through a rotating shaft. The flipping mechanism includes a rotation drive part that can drive the rotating shaft to rotate. The extension direction of the rotating shaft is perpendicular to the length direction of the battery core clamp, and the When the rotating shaft drives the cell clamp to flip upward in Z, the pole group can be brought into contact with the negative end of the housing to adjust the positions of the pole group and the housing at the positive end.

Further, the cell loading mechanism includes a first grabbing part and a second grabbing part, and a driving assembly that drives the first grabbing part and the second grabbing part to reciprocate in the X direction;

The first grabbing part is used to grab the externally supplied electric core to be welded onto the loading transfer mechanism, and the second grabbing part is used to rotate the loading transfer mechanism 90° ° is captured onto the first X-direction conveying line body.

Further, an NG pull belt is provided between the first X-direction conveying line and the loading transfer mechanism, and/or between the second Y-direction conveying line and the unloading transfer mechanism.

Further, the dust removal and detection mechanism includes a dust removal part and a detection part;

Both the dust removal part and the detection part can be adjusted in the X direction and the Z upward position, and/or the dust removal part has a rotatable brush and a dust suction cover covering the brush, so The detection part has a 3D profile component for detecting the welding mark after dust removal.

Compared with the existing technology, this utility model has the following advantages:

The welding device described in the utility model is provided with an annular conveyor bus, and along the conveyor bus, a loading mechanism, a cover detection mechanism, a welding mechanism, a dust removal and detection mechanism, and a glue pasting mechanism for loading electric cores are arranged in sequence. The mechanism, cover plate loading mechanism, jig dust removal mechanism and unloading mechanism not only integrate the various processes of the tab cover and battery core welding process to achieve automated integrated production, but also use the set-up annular conveyor bus and battery core processing The tool is used to transfer the battery cells for processing in different processes. It can realize the processing of each process at the same time, reduce the grabbing and loading and unloading of battery cells between each process, improve production efficiency and shorten the production cycle.

In addition, a shift fork is connected to the driving end of the first X-direction driving part, and a limiting groove is provided on the battery cell jig. The shift fork can slide into the limiting groove to form the first X-direction driving part and the battery core. Transmission connection between fixtures. The battery core jig can be driven by the setting of the annular guide rail and the shift fork on each driving part, thereby reducing the clamping of battery cells and the loading and unloading actions, and improving the transmission efficiency.

In addition, there is a rotating brush inside the dust hood, and there is an outlet connected to an external fan above the dust hood. The dust removal and detection mechanism can clean and collect dust at the same time, and then detect the welded products, thereby improving the pole assembly. and the welding quality of the battery core, and prevent dust from entering the battery core and causing a decrease in the yield rate of the electrode assembly.

Description of the drawings

The drawings that constitute a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the attached picture:

Figure 1 is a schematic front structural view of a welding device according to an embodiment of the present invention;

Figure 2 is a schematic top view of the welding device according to the embodiment of the present invention;

Figure 3 is a schematic three-dimensional structural diagram of the transport bus according to the embodiment of the present utility model;

Figure 4 is a schematic diagram of the installation structure of the first X-direction driving part and the fixture according to the embodiment of the present utility model;

Figure 5 is a schematic three-dimensional structural diagram of the first Y-direction conveying line according to the embodiment of the present invention;

Figure 6 is a schematic three-dimensional structural diagram of the battery core loading structure according to the embodiment of the present utility model;

Figure 7 is a schematic three-dimensional structural diagram of the feeding transfer mechanism according to the embodiment of the present utility model;

Figure 8 is a schematic three-dimensional structural diagram of the dust removal and detection mechanism according to the embodiment of the present utility model;

Figure 9 is a schematic three-dimensional structural diagram of the welding mechanism according to the embodiment of the present utility model;

Figure 10 is a schematic three-dimensional structural diagram of the glue application mechanism according to the embodiment of the present utility model;

Figure 11 is a schematic three-dimensional structural diagram of the fixture dust removal mechanism according to the embodiment of the present utility model;

Figure 12 is a schematic three-dimensional structural diagram of the cover detection mechanism according to the embodiment of the present invention.

Explanation of reference symbols:

1. Conveyor bus; 2. Fixture; 3. Cell loading mechanism; 4. Cover detection mechanism; 5. Welding mechanism; 6. Dust removal and detection mechanism; 7. Gluing mechanism; 8. Cover loading mechanism ; 9. Fixture dust removal mechanism; 10. Unloading mechanism; 11. Loading transfer mechanism; 12. Unloading transfer mechanism; 13. NG pull belt; 14. Cover buffer station; 15. Cover plate; 16. Electricity core;

101. The first X-direction conveying line; 102. The first Y-direction conveying line; 103. The second X-direction conveying line; 104. The second Y-direction conveying line; 105. Support platform;

301. The first grabbing part; 302. The second grabbing part; 303. Driving component;

501. Laser welding machine; 502. Indenter; 503. Dust removal pipe;

601. Brush; 602. Vacuum cover; 603. 3D contour component; 604. Mounting plate;

901. Rolling brush; 902. Vacuum cover;

1001. The first blanking and grabbing part; 1002. The second blanking and grabbing part;

1011. The first X-direction rail; 1012. The first X-direction driving part;

1021. The first Y-direction driving part; 1022. The first sliding seat; 1023. The first sub-guide rail;

1031. The second X-direction rail; 1032. The second X-direction driving part;

1041. The second Y-direction driving part; 1042. The second sliding seat;

1101. Rotary drive part; 1102. Rotating platform; 1103. Rotating shaft; 1104. Battery core clamp;

10121. Shift fork; 10122. Limit slot.

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

In the description of the present invention, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer" appear, they are based on the orientation or position shown in the drawings. The relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, if terms such as “first” and “second” appear, they are used for descriptive purposes only and shall not be understood as indicating or implying relative importance.

In addition, in the description of the present utility model, unless otherwise explicitly limited, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or it can be an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be internal to two components. Connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

This embodiment relates to a welding device that includes an annular conveyor bus, a cell fixture driven by the conveyor bus, and a cell loading mechanism, a cover detection mechanism, and a welding mechanism arranged along the conveyor bus. Dust removal and testing mechanism, glue application mechanism, cover loading mechanism, jig dust removal mechanism and unloading mechanism.

Among them, when the transport bus drives the battery core fixture to move, the cover plate loading mechanism is used to transport the cover plate to the battery core fixture. The jig dust removal mechanism is used to remove dust from the battery core jig with the cover plate. The battery core loading mechanism is used to transport the battery cores to be welded to the dust-removed battery core jig and transfer the poles of the battery cores. The ear pressure is placed on the cover.

The cover detection mechanism is used to detect the relative position of the tabs and the cover, and the welding mechanism is used to laser weld the detected tabs and the cover. The dust removal and inspection mechanism is used to remove dust from the welding marks between the tabs and the cover, and to detect the welding marks after dust removal. The gluing mechanism is used to affix tape to the detected solder prints and detect the bonding status of the tape, and the unloading mechanism is used to unload the glued battery cores.

The welding device of this embodiment is provided with an annular conveyor bus, and along the conveyor bus, a loading mechanism, a cover plate detection mechanism, a welding mechanism, a dust removal and detection mechanism, and a glue pasting mechanism for loading electric cells are sequentially provided. The cover loading mechanism, jig dust removal mechanism and unloading mechanism not only integrate the various processes of the lug cover plate and battery core welding process to achieve automated integrated production, but also use the set-up annular conveyor bus and battery core fixtures. By transferring the battery cells for processing in different processes, it can realize the processing of each process at the same time, reduce the grabbing and loading and unloading of battery cells between each process, improve production efficiency and shorten the production cycle.

Based on the above overall introduction, an exemplary structure of the welding device of this embodiment is shown in Figures 1 and 2. The welding device of this embodiment includes a bracket platform for placing the transport bus and the above-mentioned mechanisms. Based on Figure 2 As shown in the state, the left side of the bracket platform is equipped with a silo for placing the cover plate and a loading robot for grabbing the cover plate. As shown in FIGS. 1 and 2 , the bracket platform of this embodiment includes a bracket and a rectangular flat plate provided on the bracket and above. The transport bus is arranged on the rectangular flat plate.

As a preferred embodiment, the conveyor bus includes a first X-direction conveyor line, a first Y-direction conveyor line, a second X-direction conveyor line and a second Y-direction conveyor line that are connected end to end and form a ring. The body, the cell loading mechanism, the cover plate detection mechanism, the welding mechanism, the dust removal and detection mechanism and the glue application mechanism are arranged in sequence along the first X-direction conveying line body. The cover loading mechanism, the jig dust removal mechanism and the unloading mechanism are respectively arranged along the first Y-direction conveying line, along the second X-direction conveying line and along the second Y-direction conveying line.

In terms of specific structure, based on the state shown in Figure 2, the transport bus of this embodiment is divided into four directions: the first X direction, the second X direction, the first Y direction, and the second Y direction, thereby forming an annular arrangement. The conveyor pipe bus and the battery cell jig are sequentially circulated along the above four directions to be processed through each process mechanism for welding the tab cover plate and the battery core arranged along the four directions. Such an arrangement can avoid the need to clamp the battery cores when they are turned over between each process, thereby avoiding damage to the battery cores during clamping, reducing the loading and unloading process, and improving production efficiency.

As shown in Figure 3, multiple jigs are arranged at intervals on the conveyor bus of this embodiment. According to the setting of the production rhythm, as a feasible implementation method, this embodiment is equipped with 11 jigs, each of which can be arranged along the above-mentioned lines. It circulates in a circular pattern in four directions. Specifically, the jig has a clamping mechanism arranged along the length direction of the battery core for clamping the battery core. The specific structure of the clamping mechanism is the same as that of the existing technology. For example, a cylinder-driven clamping jaw is used to clamp or clamp the battery core. Release the battery core.

In addition, in order to improve production efficiency, the jig of this embodiment has two stations for placing battery cells, and each station is provided with a cover buffer station on one side along the length direction of the jig. When the detection process detects NG When producing products, the cover plate located at the cache station can pair the cover plate with the battery core in time. Correspondingly, as shown in Figure 2, the right side of the bracket platform of this embodiment is close to the second Y guide rail of the conveyor bus. There is an NG pull belt for placing NG products, and the NG products are placed on the lower side through the unloading mechanism. At this time, the space-time jig continues to be loaded through the cell loading mechanism, and then the cover plate of the cover buffer station is placed on the new cell for welding to avoid dry operation.

Further, in order to facilitate the transportation of the battery core fixture in the first X direction, the first X-direction transportation line body of this embodiment includes a first X-direction rail extending along the The first X-direction driving part slides back and forth on the first X-direction rail. Specifically, as shown in Figure 2, the first X-direction rail is arranged along the length direction of the support platform, and a first X-direction driving part is also provided along the first X-direction for driving the first X-direction rail. Jig.

Moreover, as shown in Figures 2 and 3, the second X direction of this embodiment is also provided with a second X guide rail extending along the X direction, and is used to drive the cell jig to reciprocate on the second X guide rail. The second X-direction driving part moves. The second X-direction rail and the first X-direction rail are arranged in parallel in the width direction of the support platform. Based on the state shown in Figure 2, the fixture on the first X guide rail moves from right to left, and the fixture on the second X guide rail moves from left to right.

Further, a shift fork is connected to the driving end of the first X-direction driving part, and a limiting slot is provided on the battery jig. The shifting fork can slide into the limiting slot to form the first X-direction driving part and the electric core. Transmission connection between core fixtures. In terms of specific structure, as shown in Figure 3, the first X-direction driving part is provided in two along the extension direction of the first X-direction rail, one of which is close to the first Y-direction conveying line, and the other is close to the second Y-direction conveying line. Correspondingly, two second X-direction driving parts are also provided.

As shown in Figure 3 and Figure 4, the first X-direction driving part of this embodiment adopts a linear module. The power output end of the linear module is connected to a mounting base, and a cylinder is provided along the Y-direction to move the mounting base in the Y-direction. , the shift fork is connected to the mounting base, and the cylinder can adjust the distance between the shift fork and the battery core fixture. There is a concave track with a downward opening arranged along the Y direction under the jig. One end of the shift fork has an upwardly protruding roller. The roller can be adjusted to move in the X direction by driving the linear module. When the roller is located corresponding to the concave track Position, the cylinder drives the shift fork to move in the Y direction so that the roller slides into the concave track, and then drives the battery core fixture to move in the X direction through the linear module.

The structure of the second X-direction driving part in this embodiment is the same as that of the first X-direction driving part, the movement mode is the same, and the transmission direction is opposite. Reference can be made to the arrangement of the first X-direction driving part, and the details of this structure will not be described again here. Specific layout.

In addition, the first Y-direction conveying line body includes a first Y-direction driving part, and a first sliding seat driven by the first Y-direction driving part and sliding back and forth along the Y-direction. The first sliding seat has a first sliding seat arranged along the X-direction. The first sub-guide rail, when the first Y-direction driving part drives the first sliding seat to slide to the first X-direction conveyor line body, the first sub-guide rail can be connected with the first X-direction rail and carry the first X-direction conveyor line body The delivered cell jig. Specifically, as shown in Figures 3 and 5, the first Y-direction driving part adopts a drive module, a first sub-guide rail is connected above the first sliding seat, and the first sub-guide rail slides with the slide rail below the battery cell fixture. connect.

Correspondingly, the second Y-direction conveying line includes a second Y-direction driving part, and a second sliding seat driven by the second Y-direction driving part and reciprocatingly sliding along the Y-direction. As still shown in Figures 3 and 5, in this embodiment, the battery core fixture on the first X-direction rail is driven by the shift fork to slide above the first sub-guide rail, and then is driven by the first Y-direction driving part. The cell fixture is moved along the first Y direction to the left side of the second X-direction rail, and then the cell fixture driven by the second X-direction drive unit moves from the first Y-direction rail to the second X-direction drive The second sliding seat is driven by the second X-direction driving part to reciprocate in the Y-direction. With such an arrangement, the battery core fixture can be driven by the ring guide rail and the fork on each driving part, thereby reducing the need to clamp the battery core and the loading and unloading operations, and improve the transmission efficiency.

Preferably, a loading transfer mechanism is provided between the battery core loading mechanism and the first X-direction conveying line in this embodiment. The loading transfer mechanism is used to turn the battery cores to be welded that are transported by the battery loading mechanism to 90 °, and adjust the position of the casing and pole group in the battery core at the positive end. Moreover, a blanking transfer mechanism is provided between the second Y-direction conveying line and the blanking mechanism, and the blanking transfer mechanism is at least used to turn the glued battery core 90°.

As shown in FIG. 2 and FIG. 6 , this embodiment includes a cell loading mechanism and an unloading mechanism arranged in parallel along the width direction of the support platform. The unloading mechanism is arranged between the first X-direction rail and the second X-direction rail, and the cell loading mechanism is arranged on the side of the first X-direction rail away from the second X-direction rail. In order to facilitate the transfer of the battery cell jigs that enter the conveyor bus and facilitate the taking of the battery cells, this embodiment is provided with a loading transfer mechanism and a loading transfer mechanism at the same time at the unloading mechanism and the loading mechanism.

Further, the loading transfer mechanism includes a turning mechanism with a battery core clamp, and a rotating platform for driving the turning mechanism to rotate in the XY plane. The battery cell clamp is installed on the rotating platform through the rotating shaft. The flipping mechanism includes a rotary drive part that can drive the rotating shaft to rotate. The extending direction of the rotating shaft is perpendicular to the length direction of the battery clamp. When the rotating shaft drives the battery clamp to flip upward in Z, it can turn the battery clamp upward. The pole group is in contact with the negative terminal of the housing to adjust the positions of the pole group and the housing at the positive terminal. In this embodiment, the unloading transfer mechanism can be the same as the loading transfer mechanism, and has the function of adjusting the positive end positions of the battery core casing and the pole group.

As shown in Figure 7, the rotating platform in this embodiment is a drive motor. The power output end of the drive motor is connected to an adapter seat, and the flipping mechanism is connected above the adapter seat. By driving the motor, the battery core above the battery core clamp can be rotated 90° to facilitate the loading or unloading mechanism to clamp the battery core. Among them, the rotary drive part adopts a rotary motor, and the power output end of the rotary drive part is fixedly connected with the rotating shaft for driving the rotating shaft to rotate. The electric core clamp is fixedly connected to the rotating shaft, and the two electric core clamps are arranged side by side on the rotating shaft. By driving the rotating motor to rotate the battery core clamp, the position of the positive terminal in the pole group and the casing can be adjusted.

The cell loading mechanism of this embodiment includes a first grabbing part and a second grabbing part, and a driving assembly that drives the first grabbing part and the second grabbing part to reciprocate in the X direction. The first grabbing part is used to grab the externally supplied battery core to be welded to the loading transfer mechanism, and the second grabbing part is used to grab the battery core rotated 90° on the loading transfer mechanism to the first X direction on the conveyor line.

As shown in Figure 6, the cell loading mechanism also includes a fixed frame and a drive module located on the fixed frame, which is the above-mentioned drive component. Of course, the drive component can also be configured to use a motor to drive the slider to move on the slide rail. of institutions. In this embodiment, the driving module drives the first grabbing part and the second grabbing part to slide along the X direction. Moreover, the first grabbing part and the second grabbing part can also be driven by a cylinder to move up and down along Z to adapt to the position of the battery core. The specific structures of the first gripping part and the second gripping part may be referred to the manipulator used for gripping electric cores in the prior art, and will not be described again here.

Correspondingly, the unloading mechanism is the same as the above-mentioned battery core loading mechanism. The unloading mechanism is also provided with a first unloading grabbing part and a second unloading grabbing part. The second unloading grabbing part is used to unload the unloading material. The cells on the material transfer mechanism are grabbed and transported to the finished product storage area. The first blanking grabbing part is used to grab the welded finished products to the blanking transfer mechanism. By setting up the battery core loading mechanism and unloading structure, the welding device is fully automated and manual work is reduced.

Further, an NG pull belt is provided between the first X-direction conveying line body and the loading transfer mechanism, and between the second Y-direction conveying line body and the unloading transfer mechanism. As shown in Figure 2, the NG strap is placed with cells arranged along the 501. Laser welding machine; 502. Pressure head; 503. Dust removal pipe;

When NG products are found in the cyclically transported welding products, the NG products are taken out to the NG pull belt through the cell loading mechanism or unloading mechanism. Of course, NG pulling belts can also be provided between the first X-direction conveying line body and the loading transfer mechanism, and between the second Y-direction conveying line body and the unloading transfer mechanism.

The dust removal and detection mechanism includes a dust removal part and a detection part. Both the dust removal part and the detection part can be adjusted in the X direction and Z upward position. At the same time, the dust removal part has a rotatable brush and a dust hood that covers the brush. The detection part has a 3D profile component for detecting the welding mark after dust removal. In terms of specific structure, as shown in Figure 8, the dust removal part and the detection part of this embodiment are arranged on the mounting plate. The mounting plate is connected to two spaced apart dust removal covers. The distance between them is in the direction of the position of the two battery cores on the fixture. correspond. 3D profile component 3D profile measuring instrument, the 3D profile component is connected to the mounting plate.

As still shown in Figure 8, the mounting plate is fixedly connected to the vertical pipe, and the mounting base is driven by a cylinder to move up and down along Z. The vertical tube and the mounting base are connected to the module arranged along the X direction, and the module drives the entire dust removal part and detection part to adjust along the X and Z directions to adapt to the position of the battery core. In addition, the dust hood is equipped with a motor that drives the brush to rotate. The top of the dust hood has an outlet connected to an external fan. The dust removal and detection mechanism can clean and collect dust at the same time, and then detect the welded products, thereby improving the extreme efficiency. Welding quality of the battery pack and battery core, and prevent dust from entering the battery core and causing a decrease in the yield rate of the battery pack.

As shown in Figure 9, the welding mechanism of this embodiment is equipped with two laser welders corresponding to the top of the battery core, and the welding mechanism has a pressure head for crimping the cover plate, and the battery core is provided below the cover plate. The battery core can be driven by a cylinder so that the battery core poles are attached to the bottom of the cover. Moreover, one end of the pressure head is provided with a dust removal pipe connected to the dust collector, so that the welding mechanism is compatible with air blowing and dust collection functions while welding.

Still as shown in Figure 9, the part that fixes the pressure head can also be swapped along the horizontal Y direction to facilitate the replacement of the pressure head. In this embodiment, the slide rail and slide block can be used to drive the part that fixes the pressure head together with the cylinder. Pull out or push in. The welding mechanism of this embodiment can refer to the specific structure of the prior art, and its function is to realize welding of the cover plate and the battery core.

As shown in Figure 10, the gluing mechanism of this embodiment also uses dual-station tape, the double suction discs are controlled by dual cylinders, and a linear module with a stroke of 300mm is used to drive two suction heads. Integrated on the same mechanism, it sucks two glues at the same time. One of the glue suction heads changes the distance between it and the other glue suction head through the cylinder. After sucking the glue, it moves to the glue application position through the module. The two glue suction heads descend at the same time for application. Glue, you can also lower one of the glue suction heads to apply glue separately. And on the other side of the module, there is a double-sided array camera and lens for testing the glue quality, which is equipped with a coaxial light source to achieve detection. The specific structural settings of the glue application mechanism of this embodiment can be referred to the existing technology and will not be discussed here.

As shown in Figure 11, the jig dust removal mechanism of this embodiment has a roller brush, a dust hood and other combinations for dust removal to achieve simultaneous dust removal and dust collection of the empty jig after blanking. The vacuum hood is connected to an external fan or vacuum cleaner pipeline. It is also equipped with a cylinder for driving the vacuum hood and roller brush to move up and down to adapt to the height of the fixture.

As shown in Figure 12, the cover detection mechanism of this embodiment uses CCD to detect the relative position of the tabs and the cover. The tab cover position detection station uses a dust-proof module with a stroke of 300mm to realize the left and right movement of the camera. , its specific structure refers to the existing technology and will not be discussed here.

As can be seen from Figure 2, the working flow of the welding device in this embodiment is as follows:

Step 1: The battery core fixture moves from the battery core loading mechanism to the first Y guide rail along the first The battery core is grabbed onto the loading transfer mechanism, and the battery core is rotated 90° through the rotation of the loading transfer mechanism, that is, the long edge of the battery core is set in the Y direction, and then the battery core is placed on the battery core fixture through the first grabbing part On the machine, the cells are transported on the conveyor bus along with the cell jig.

Step 2: Transport the battery core fixture to the cover plate detection mechanism by driving the first It is transported to the welding mechanism for laser welding processing. After the welding is completed, it is transported to the bottom of the dust removal and inspection mechanism to remove dust from the welding mark between the tab and the cover. The welding mark after dust removal is inspected and processed, and then passes through another The first X-direction driving part drives and transports the welded battery core jig to the glue application mechanism, applies tape to the detected solder prints, and detects the glue application quality.

Step 3: Drive the battery cell fixture to the first Y-directional conveyor line through the first The driving of the module drives the battery cell fixture to flow to the second X-direction conveying line.

Step 4: Use the second X-direction driving part to drive the cell jig to the second X-direction rail and run it to the unloading mechanism. The welded finished product is grabbed to the unloading part through the first unloading grabbing part. On the transfer mechanism, the welded pole group is rotated 90° through the unloading transfer mechanism, and the pole group is unloaded to the storage area through the second unloading grabbing part.

Step five is carried out simultaneously with step four. Dust the empty jig after the electrode assembly is unloaded. Dust the battery core jig with the cover through the jig dust removal mechanism, and then pass the second Y-direction conveyor line. The drive transports the empty battery core fixture to the battery core loading mechanism for battery loading.

Step 6: Repeat steps 1 to 5 to realize the cycle operation of the welding device.

The welding device of this embodiment is provided with an annular conveyor bus, and along the conveyor bus, a loading mechanism, a cover plate detection mechanism, a welding mechanism, a dust removal and detection mechanism, and a glue pasting mechanism for loading electric cells are sequentially provided. The cover loading mechanism, jig dust removal mechanism and unloading mechanism realize automated integrated production, and can realize simultaneous processing of each process, reducing the movement of cell grabbing, loading and unloading between each process, and improving production efficiency. and shorten the production cycle.

The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in within the protection scope of this utility model.

Claims (10)

1. A welding device, characterized by: It includes an annular conveyor bus, a cell fixture driven by the conveyor bus, and a cell loading mechanism, a cover detection mechanism, a welding mechanism, a dust removal and detection mechanism, and a glue sticking mechanism arranged along the conveyor bus. , cover loading mechanism, jig dust removal mechanism and unloading mechanism; When the transport bus drives the battery core fixture to move, the cover plate loading mechanism is used to transport the cover plate to the battery core fixture; The fixture dust removal mechanism is used to perform dust removal treatment on the battery core fixture with the cover plate; The battery core loading mechanism is used to transport the battery core to be welded to the dust-removed battery core fixture, and press the tab of the battery core onto the cover plate; The cover detection mechanism is used to detect the relative position of the tab and the cover; The welding mechanism is used to perform laser welding processing on the detected pole tab and the cover plate; The dust removal and detection mechanism is used to remove dust from the welding mark between the pole tab and the cover plate, and to detect the welding mark after dust removal; The adhesive applying mechanism is used to apply adhesive tape to the detected welding print and detect the bonding status of the adhesive tape; The unloading mechanism is used to unload the glued electric core. 2. The welding device according to claim 1, characterized in that: The conveyor bus includes a first X-direction conveyor line, a first Y-direction conveyor line, a second X-direction conveyor line and a second Y-direction conveyor line that are connected end to end and form a ring; The battery core loading mechanism, the cover plate detection mechanism, the welding mechanism, the dust removal and detection mechanism and the glue applying mechanism are sequentially arranged along the first X-direction conveying line; The cover plate loading mechanism, the jig dust removal mechanism and the unloading mechanism are respectively arranged along the first Y-direction conveying line, along the second X-direction conveying line and the Along the second Y-direction conveyor line. 3. The welding device according to claim 2, characterized in that: The first X-direction conveying line body includes a first X-direction rail extending along the X-direction, and a first X-direction drive for driving the battery core fixture to slide back and forth on the first X-direction rail. department. 4. The welding device according to claim 3, characterized in that: A shift fork is connected to the driving end of the first X-direction driving part, and a limiting groove is provided on the battery cell fixture. The shift fork can slide into the limiting groove to form the third A transmission connection between the X-direction driving part and the battery core fixture. 5. The welding device according to claim 3, characterized in that: The first Y-direction conveying line body includes a first Y-direction driving part, and a first sliding seat driven by the first Y-direction driving part and sliding back and forth along the Y-direction. The first sliding seat is provided with a sliding seat along the X-direction. The first sub-guide rail is arranged in a direction, and when the first Y-direction driving part drives the first sliding seat to slide to the first X-direction conveying line body, the first sub-guide rail can interact with the first X-direction Connect to the guide rail and carry the battery core jig transported by the first X-direction transport line. 6. The welding device according to claim 2, characterized in that: A loading transfer mechanism is provided between the battery core loading mechanism and the first X-direction conveying line body. The loading transfer mechanism is used to transport the batteries to be welded that are transported by the battery core loading mechanism. Turn the core 90°, and adjust the position of the casing and pole group in the battery core at the positive end; and/or, A blanking transfer mechanism is provided between the second Y-direction conveying line and the blanking mechanism. The blanking transfer mechanism is at least used to turn the glued battery core to 90°. 7. The welding device according to claim 6, characterized in that: The loading transfer mechanism includes a flip mechanism with a battery core clamp, and a rotating platform for driving the flip mechanism to rotate in the XY plane; The battery core clamp is installed on the rotating platform through a rotating shaft. The flipping mechanism includes a rotation drive part that can drive the rotating shaft to rotate. The extension direction of the rotating shaft is perpendicular to the length direction of the battery core clamp, and the When the rotating shaft drives the cell clamp to flip upward in Z, the pole group can be brought into contact with the negative end of the housing to adjust the positions of the pole group and the housing at the positive end. 8. The welding device according to claim 6, characterized in that: The battery core loading mechanism includes a first grabbing part and a second grabbing part, and a driving assembly that drives the first grabbing part and the second grabbing part to reciprocate in the X direction; The first grabbing part is used to grab the externally supplied electric core to be welded onto the loading transfer mechanism, and the second grabbing part is used to rotate the loading transfer mechanism 90° ° is captured onto the first X-direction conveying line body. 9. The welding device according to claim 6, characterized in that: An NG pull belt is provided between the first X-direction conveying line and the loading transfer mechanism, and/or between the second Y-direction conveying line and the unloading transfer mechanism. 10. The welding device according to any one of claims 2 to 9, characterized in that: The dust removal and detection mechanism includes a dust removal part and a detection part; Both the dust removal part and the detection part can be adjusted in the X direction and the Z upward position, and/or the dust removal part has a rotatable brush and a dust suction cover covering the brush, so The detection part has a 3D profile component for detecting the welding mark after dust removal.