WO2023207239A1

WO2023207239A1 - Welding apparatus

Info

Publication number: WO2023207239A1
Application number: PCT/CN2023/073973
Authority: WO
Inventors: 杜彬; 王利锋; 时春阳; 孙一舟
Original assignee: 无锡先导智能装备股份有限公司
Priority date: 2022-04-27
Filing date: 2023-01-31
Publication date: 2023-11-02

Abstract

A welding apparatus, comprising: a battery cell processing unit, which is used for folding a tab (A2) on each battery cell (A1) in a battery cell group (A4), and for transferring the battery cell group; an assembling device (4), which is used for receiving a top cap (B1) and the battery cell group transferred by the battery cell processing unit, so that top cap pins (B2) of the top cap are attached to an adapter piece (A3) on the tab of each battery cell of the battery cell group; and a welding device, which is used for welding the top cap pins of the top cap to the adapter piece on the tab of each battery cell of the battery cell group on the assembling device. The welding apparatus, by means of the battery cell processing unit, the assembling device and the welding device, completes tab folding, the transfer of a battery cell group, and the assembly and welding of the battery cell group and a top cap, which simplifies working procedures, reduces process difficulties, has a high automation degree, lowers labour cost, and achieves a high product quality stability.

Description

a welding equipment

Technical field

The present application relates to the technical field of battery manufacturing equipment, and in particular to a welding equipment.

Background technique

In the battery manufacturing process, the dual battery cells need to be cored together, that is, the two battery cells are stacked, and the adapter tabs on the tabs of each battery cell are welded to the top cover pins on the top cover.

Assembly is required before welding the adapter blades on the tabs of each cell to the top cover pins on the top cover. Since the assembly process of the adapter plates on the tabs of each battery cell and the top cover pins on the top cover are many and complex, the degree of automation is low, the labor cost is high, and the stability of product quality is low.

Contents of the invention

Based on this, it is necessary to address the fact that in the prior art, the assembly process of the adapter blades on the pole tabs of each battery cell and the top cover pins on the top cover is many and complex, resulting in a low degree of automation and high labor costs. The problem of low stability of product quality provides a welding equipment that improves the above defects.

A welding equipment including:

The battery core processing unit is used to fold the tabs on each battery core in the battery core group and transport the battery core group;

An assembly device for receiving the top cover and the battery core group transported by the battery core processing unit, so that the top cover pins of the top cover are in contact with the rotating pins on the pole tabs of each battery cell of the battery core group. tab fit; and

A welding device is used to weld the adapter piece on the top cover pin of the top cover on the assembly device and the pole lug of each cell of the cell group.

In one embodiment, the battery core processing unit includes a tab turning device and a stack turning device; the tab turning device includes a tab turning mechanism and a first transfer mechanism, and the tab turning mechanism The first transfer mechanism is used to carry the battery core and fold the tabs of the battery core, and the first transfer mechanism is used to transfer the battery cores on the tab folding mechanism to the stacking turning device;

The stacking and flipping device includes a stacking and flipping mechanism and a second transfer mechanism. The stacking and flipping mechanism is used to carry a plurality of electric cores that are transferred in sequence by the first transfer mechanism to stack and form the electric core group. The battery core set is turned over; the second transfer mechanism is used to transfer the battery core set to the assembly device.

In one embodiment, the tab turning mechanism includes a first carrying component and a tab turning component;

The first carrying component is used to carry the battery core, and the tab folding component includes a base, a lifting frame and a folding roller. The lifting frame is connected to the base in a controlled lifting and lowering manner, and the folding roller is rotatably connected to the lifting frame;

Wherein, when the lifting frame drives the folding roller to rise and fall, the folding roller can resist and push the tabs of the battery core to fold.

In one embodiment, the tab folding mechanism further includes an adjustment component, the adjustment component includes a driving component and a first clamping component, and the first clamping component is installed at the driving end of the driving component, The driving component drives the adapter piece on the tab close to or away from the battery core; the first clamping component has two oppositely arranged first clamping blocks, and the two first clamping blocks are mutually opposite to each other. First positioning slots are provided on both facing sides;

Wherein, when the driving component drives the first clamping component to move until the adapter piece enters between the two first clamping blocks, the first clamping component can control the two first clamping blocks. The holding blocks are closed together so that the adapter piece is limited in the first positioning grooves of the two first clamping blocks.

In one embodiment, the first transfer mechanism includes a first mounting base, a second clamping component and a first positioning piece installed on the first mounting base;

The first mounting base can controllably move between the tab folding mechanism and the stack turning mechanism, and can controllably rise or fall; the second clamping assembly has two oppositely arranged second clamping block;

When the first mounting seat moves to the tab turning mechanism, the first mounting seat is located above the tab turning mechanism, and during the descending process of the first mounting seat, The first positioning piece can be inserted between the electric core and the adapter piece, and the second clamping component can control the two second clamping blocks to clamp the electric core.

In one of the embodiments, the second clamping component further has two oppositely arranged third clamping blocks;

When the second clamping component controls the two second clamping blocks to clamp the battery core, the second clamping component can control the rotation of the tabs of the two third clamping blocks to clamp the battery core. splice.

In one of the embodiments, second positioning grooves are provided on the sides of the two third clamping blocks facing each other;

When the second clamping assembly controls the two second clamping blocks to clamp the adapter piece on the tab of the battery core, the adapter piece is limited to the two third clamping blocks. inside the second positioning slot.

In one embodiment, the stack turning mechanism includes a fixed base, a turning base, a second support frame and a third clamping component;

The flip base is rotatably connected to the fixed base in a controllable manner, and the second support frame is connected to the flip base and has a second support position for carrying the battery pack;

The third clamping component is provided on the second support frame and/or the flip seat, and is used to clamp the battery core group located on the second support position.

In one embodiment, the stack flipping mechanism further includes a plurality of first adapter sheet positioning components corresponding to each cell of the battery cell group, and each of the first adapter sheet positioning components includes The second positioning driving member and the first positioning block. The second positioning driving member is installed on the second support frame and is drivingly connected with the first positioning block to drive the first positioning block to move to the positioning position. Location;

When the first positioning block moves to the positioning position, the first positioning block contacts the side of the adapter piece on the tab of a corresponding battery core away from the battery core.

In one embodiment, the second transfer mechanism includes a clamping jaw seat, a clamping jaw and a second adapter plate positioning assembly;

The clamping jaw base can controllably move between the stacking turning mechanism and the assembly device, and the clamping jaw is installed on the clamping jaw base; the second adapter plate positioning assembly includes components both installed on The second positioning block and pressing block on the clamping jaw seat;

When the clamping jaw seat drives the clamping jaw to move to the stacking turning mechanism and clamps the battery core group, the second positioning block is inserted into the adapter on each battery cell of the battery core group. The pressing block is inserted into the side of the adapter piece on each battery core of the battery core group facing away from the battery core. The pressing block can be controlled to face the second battery core. The positioning block moves closer or further away.

In one embodiment, the second positioning block is provided with a plurality of third positioning grooves on one side toward the pressing block that correspond to the adapter pieces of each cell of the cell group;

When the clamping claw clamps the battery core group, the adapter piece on each battery core of the battery core group is inserted into the corresponding third positioning slot.

In one embodiment, the assembly device includes a third support frame and a guide block. The third support frame has a third support position for carrying the top cover. The guide block is installed on the third support frame. on the side, and a fourth positioning groove is provided on the side facing the third support position;

When the top cover is carried on the third support position, the side of the guide block with the fourth positioning groove fits with the top cover pin of the top cover;

The top surface of the guide block has an insert opening connected to the fourth positioning groove. When the second transfer mechanism transfers the battery core group to the third support position, the battery core group The adapter piece on each battery core is inserted into the fourth positioning slot through the insert piece opening.

In one embodiment, the top surface of the guide block is provided with a first chamfered bevel arranged around the opening of the insert piece.

In one embodiment, the inner wall of the fourth positioning groove has a plurality of protrusions, and the plurality of protrusions are spaced apart from each other to divide the fourth positioning groove into a plurality of sub-positioning grooves;

When the second transfer mechanism transfers the battery core set to the third support position, the adapter pieces on each battery core of the battery core set are inserted into the plurality of sub-positioning grooves one by one. Inside.

In one embodiment, the assembly device further includes a first blade positioning component, the first blade positioning component includes a first blade driving component, a first blade mounting base and a first positioning blade;

The first blade driving assembly is installed on the third support frame and is drivingly connected with the first blade mounting seat, and the first positioning blade is installed on the first blade mounting seat;

The first blade driving assembly is configured to controllably drive the first blade mounting base to move in a third horizontal direction, and drive the first positioning blade to be inserted into the top cover pin away from the top cover. One side of the guide block.

In one embodiment, the assembly device further includes a second blade positioning component, and the second blade positioning component includes a second blade driving component, a second blade mounting base, and a second positioning blade;

The second blade driving assembly is installed on the third support frame and is drivingly connected with the second blade mounting base, and the second positioning blade is installed on the second blade mounting base, And the first positioning inserts are respectively located on both sides of the third support position in the third horizontal direction;

The second blade driving assembly is configured to controllably drive the second blade mounting base to move along the third horizontal direction, and drive the second positioning blade to be inserted into the top cover lead of the top cover. The side of the foot away from the guide block.

In one embodiment, a contact displacement sensor is installed on the welding device, and the contact displacement sensor is used to detect the distance between the welding device and the third support frame.

In one embodiment, the battery core processing unit includes a tab bending device and a transfer device;

The tab bending device includes a second carrying component, a bending component and a positioning component; the second carrying component is used to carry the battery core group formed by stacking a plurality of battery cores along a third direction;

The bending component has a bending portion located on one side of the battery core set in the third direction, and the adapter piece is located on each battery core on a side of the tab close to the bending portion; The positioning component has a plurality of second positioning portions corresponding to the plurality of battery cores; each second positioning portion is used to abut a side of the corresponding tab away from the bending portion; the bending portion The bending portion can controllably move along the third direction to push the tab of each battery core to bend with the corresponding second positioning portion as a fulcrum;

The transfer device is used to transfer the battery core group on the tab bending device to the assembly device.

In one embodiment, the positioning assembly includes a moving driving mechanism, a moving base and a positioning base; the moving base is drivingly connected to the moving driving mechanism, and a plurality of second positioning parts are connected to the moving base. , the positioning base is connected to the moving base, and has a plurality of fifth positioning slots corresponding to a plurality of battery cells;

Wherein, the moving driving mechanism is used to drive the moving base to move in the second direction, so that the adapter piece on each bent pole tab is inserted into the corresponding fifth positioning groove; The second direction is perpendicular to the third direction.

In one embodiment, the moving driving mechanism is also used to drive the moving base to move in the third direction to drive each second positioning portion and the corresponding tab away from the bending one side of the head against the other.

In one embodiment, the positioning base further has a third chamfered slope arranged around each fifth positioning groove.

When the above-mentioned welding equipment is actually used, first, the cell processing unit bends the tabs of each cell in the cell group, and transfers the cell group to the assembly device. The assembly device carries a top cover. At this time, the top cover pins of the top cover fit with the adapter tabs on the tabs of each cell of the battery pack, that is, the assembly of the battery pack and the top cover is completed. After the assembly is in place, the welding device welds the top cover pins and each adapter piece that fits the top cover pins.

In this way, the welding equipment of the present application completes the folding of the tabs, the transfer of the battery pack, the assembly and welding of the battery pack and the top cover through the battery cell processing unit, the assembly device and the welding device, thereby simplifying the process and reducing the process cost. difficulty, degree of automation High, labor costs are reduced, and product quality is highly stable.

Description of drawings

Figure 1 is a front view of the tab folding device of the battery core processing unit in the first embodiment of the present application;

Figure 2 is a top view of the pole tab turning device shown in Figure 1;

Figure 3 is a side view of the pole tab turning device shown in Figure 1;

Figure 4 is a front view of the battery cell before the tabs are folded;

Figure 5 is a side view of the battery core shown in Figure 4 before the tabs are folded;

Figure 6 is a top view of the battery core shown in Figure 4 before the tabs are folded;

Figure 7 is a front view of the battery core after the tabs are folded;

Figure 8 is a side view of the battery core after the tabs are folded;

Figure 9 is a top view of the battery core after the tabs are folded;

Figure 10 is a front view of the tab folding component and the adjustment component of the tab turning device shown in Figure 1;

Figure 11 is a front view of the first transfer mechanism of the pole tab turning device shown in Figure 1;

Figure 12 is a top view of the first transfer mechanism shown in Figure 11;

Figure 13 is a side view of the first transfer mechanism shown in Figure 11;

Figures 14a to 14b are respectively schematic structural views of the two third clamping blocks of the first transfer mechanism shown in Figure 11;

Figure 15 is a front view of the stacking and flipping device of the battery cell processing unit in the first embodiment of the present application;

Figure 16 is a top view of the stack flipping device shown in Figure 15;

Figure 17 is a side view of the stacking flipping device shown in Figure 15;

Figure 18 is a partial structural schematic diagram of the second transfer mechanism of the stacking and turning device of the battery core processing unit in the first embodiment of the present application;

Figure 19 is a side view of the second transfer mechanism shown in Figure 18;

Figure 20 is a side view of the second positioning block of the second transfer mechanism shown in Figure 18;

Figure 21 is a front view of the assembly device in an embodiment of the present application;

Figure 22 is a top view of the assembly device shown in Figure 21;

Figure 23 is a side view of the assembly device shown in Figure 21;

Figure 24 is a partial structural schematic diagram of the assembly device shown in Figure 22;

Figure 25 is a front view of the top cover in an embodiment of the present application;

Figure 26 is a perspective view of the guide block of the assembly device shown in Figure 21;

Figure 27 is a front view of the guide block shown in Figure 26;

Figure 28 is a top view of the guide block shown in Figure 27;

Figure 29 is a front view of the battery pack in the second embodiment of the present application (the adapter sheet is in a vertical state);

Figure 30 is a side view of the battery pack shown in Figure 29 (the adapter sheet is in a vertical state);

Figure 31 is a top view of the battery pack shown in Figure 29 (the adapter sheet is in a vertical state);

Figure 32 is a front view of the battery pack shown in Figure 29 (the adapter sheet is in a parallel state);

Figure 33 is a side view of the battery pack shown in Figure 32 (the adapter blade is in a parallel state);

Figure 34 is a top view of the battery pack shown in Figure 32 (the adapter sheet is in a parallel state);

Figure 35 is a front view of the battery core bending device of the battery core processing unit in the second embodiment of the present application;

Figure 36 is a side view of the battery core bending device shown in Figure 35;

Figure 37 is a top view of the battery core bending device shown in Figure 35;

Figure 38 is a front view of the positioning assembly of the battery core bending device shown in Figure 35;

Figure 39 is a side view of the positioning assembly shown in Figure 38;

Figure 40 is a top view of the positioning assembly shown in Figure 38;

Figure 41 is a front view of the battery core bending device and the transfer device of the battery core processing unit in the second embodiment of the present application;

FIG. 42 is a side view of the battery core bending device and the transfer device shown in FIG. 41 .

Detailed ways

In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific implementation modes of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without violating the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

In the description of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations on the application.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In this application, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those with ordinary skills in this field For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

In this application, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

It should be noted that when an element is referred to as being "mounted" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

An embodiment of the present application provides a welding equipment, including a cell processing unit, an assembly device 4 (see Figure 21) and a welding device. The battery core processing unit is used to flip the tabs A2 on each battery core A1 in the battery core group A4, and transport the battery core group A4. The assembly device 4 is used to receive the top cover B1 and the cell group A4 transported by the cell processing unit, so that the top cover pin B2 of the top cover B1 and the tab A2 of each cell A1 of the cell group A4 are connected. The piece fits. The welding device is used to weld the top cover pin B2 of the top cover B1 on the assembly device 4 and the adapter piece A3 on the tab A2 of each cell A1 of the cell group A.

Please refer to Figure 1, Figure 15, and Figure 21. In the first embodiment of the present application, the battery core processing unit is used to fold the tab A2 of the battery core A1 at the tab folding station. A plurality of battery cells A1 are stacked to form a battery core group A4, the battery core group A4 is turned over, and the battery core group A4 in the stacking station is transferred to the assembly station. The assembly device 4 is used to receive the top cover B1 and the battery core group A4 transported by the battery core processing unit at the assembly station, so that the battery core group A4 and the top cover B1 are assembled. After the assembly is completed, the welding device welds the adapter piece A3 on the tab A2 of each cell A1 of the cell group A4 and the top cover pin B2 on the top cover B1.

Specifically in the embodiment, the cell processing unit includes a tab turning device 1 (see Figure 1) and a stack turning device (not labeled). Referring to FIG. 1 , the tab turning device 1 is arranged at the tab turning station, and includes a tab turning mechanism 10 and a first transfer mechanism 20 . The tab folding mechanism 10 is used to carry the battery core A1 and fold the tab A2 of the battery core A1, so that the adapter piece A3 follows the tab A2 and is folded to be parallel to the end surface of the battery core A1, so as to facilitate subsequent follow-up. When assembled with the top cover B1, the adapter piece A3 can closely fit the top cover pins B2 on the top cover B1. The first transfer mechanism 20 is used to transfer the battery core A1 on the tab folding mechanism 10 to the stacking station.

Referring to FIG. 15 , the stacking and turning device is arranged at the stacking station and includes a stacking and turning mechanism 30 and a second transfer mechanism (not shown). The stacking and flipping mechanism 30 is used to carry a plurality of battery cells A1 sequentially transported by the first transfer mechanism 20, so that the plurality of battery cells A1 are stacked to form a battery core group A4, and to flip the battery core group A4, so that the battery cells A1 Each battery cell A1 of group A4 is flipped from a vertical stacking state of being stacked in sequence along the vertical direction to a horizontal stacking state of being stacked in sequence along the horizontal direction. state. The second transfer mechanism is used to transfer the battery core group A4 in a horizontally stacked state to the assembly station.

As shown in Figure 21, the assembly device 4 is arranged at the assembly station. The assembly device 4 is used to carry the top cover B1 and the battery core group A4 transported by the second transfer mechanism (in a horizontally stacked state), so that the top cover pin B2 of the top cover B1 is in contact with the battery core A1 of the battery group A4. The adapter piece A3 on the tab A2 fits together to facilitate subsequent welding. The welding device is used to weld the top cover pin B2 of the top cover B1 on the assembly device 4 and the adapter piece A3 on the tab A2 of each cell A1 of the cell group A4.

When the above welding equipment is actually used, first (please refer to the state of the tab A2 before folding shown in Figures 4 to 6, and the state after the tab A2 is folded shown in Figures 7 to 9) The incoming battery core A1 is carried on the tab folding mechanism 10, and the tab folding mechanism 10 is used to fold the tab A2 of the battery core A1 upward 90°, so that the adapter piece A3 on the tab A2 is in contact with the battery. The end faces of core A1 are parallel. After the tabs are folded in place, the first transfer mechanism 20 transfers the battery cells A1 to the stacking and flipping mechanism 30 of the stacking station for stacking. Each battery cell A1 stacked on the stacking and flipping mechanism 30 forms the battery core group A4. After a sufficient number of battery cells A1 are stacked on the stacking and flipping mechanism 30, the stacking and flipping mechanism 30 flips the battery core group A4 by 90°, so that the battery core group A4 is flipped from a vertical stacking state to a horizontal stacking state.

The assembly device 4 carries a top cover B1. After the flip is in place, the second transfer mechanism transfers the battery cell group A4 to the top cover B1 on the assembly device 4 of the assembly station, so that the top cover pin B2 of the top cover B1 is in contact with each battery cell A1 of the battery group A4 Connect the adapter piece A3 on the tab A2 to complete the assembly of the battery pack A4 and the top cover B1. After the assembly is in place, the welding device welds the top cover pin B2 and each adapter piece A3 that is attached to the top cover pin B2.

In this way, the welding equipment of the present application completes the folding of the tab A2, the stacking of the battery core A1, the flipping of the battery core group A4, and the battery core group A4 through the tab turning device 1, the stacking and turning device, the assembly device 4 and the welding device. The assembly and welding with the top cover B1 simplifies the process, reduces the difficulty of the process, has a high degree of automation, reduces labor costs, and has high stability of product quality.

Specifically in the embodiment, the welding equipment also has a loading device (not shown), which is used to transport the battery core A1 from the battery loading station to the tab folding mechanism 10 of the tab folding station. superior. Furthermore, the welding equipment also has a testing station. The loading device first transports the battery core A1 from the battery loading station to the testing station to test the battery core A1. When the battery core A1 is unqualified, it will be deemed unqualified. The battery core A1 is transported to the unloading conveyor belt. When the battery core A1 is qualified, the qualified battery core A1 is transported to the tab folding mechanism 10 of the tab folding station.

It should be noted that the specific structure of the loading device is not limited here, as long as it can realize the transportation of the battery core A1.

Please refer to FIGS. 1 to 3 . In the specific embodiment, the tab turning mechanism 10 includes a first carrying component 11 and a tab turning component 12 . The first carrying component 11 is used to carry the battery core A1. The tab turning component 12 includes a base 121, a lifting frame 122 and a turning roller 123. The lifting frame 122 is connected to the base 121 in a controllable manner, that is, the lifting frame 122 can be controlled to rise or fall relative to the base 121 . The folding roller 123 is rotatably connected to the lifting frame 122 , so that the folding roller 123 rises or falls together with the lifting frame 122 . Among them, when the lifting frame 122 drives the folding roller 123 to rise, the folding roller 123 can The tab A2 that can resist and push the battery core A1 is bent upward until the tab A2 is turned upward by 90°.

In this way, after the battery core A1 is placed on the first carrying component 11, the lifting frame 122 drives the folding roller 123 to rise, so that the folding roller 123 contacts the tab A2 of the battery A1 until the folding roller 123 pushes the tab upward. A2 is folded 90°. After the tab A2 of the battery core A1 is folded in place, the lifting frame 122 drives the folding roller 123 to descend until it returns to the initial position.

Furthermore, the tab folding assembly 12 also includes a folding lifting driving member 124 installed on the base 121. The folding lifting driving member 124 is drivingly connected to the lifting frame 122 to drive the lifting frame 122 to rise or fall. Optionally, the folding lifting driving member 124 may use a cylinder.

Please refer to Figure 10. In the specific embodiment, the tab folding mechanism 10 also includes an adjustment component 13. The adjustment component 13 is used to adjust the adapter piece A3 on the tab A2 after the tab A2 is folded in place. Positioning means calibrating the position of the adapter piece A3 relative to the pole tab A2, thereby eliminating the positional deviation of the adapter piece A3 produced during the folding process of the pole tab A2.

The adjustment component 13 includes a driving component 131 and a first clamping component (not shown). The first clamping component is installed on the driving end of the driving component 131, so that the driving component 131 drives the adapter piece A3 on the tab A2 that is close to or away from the battery core A1. The first clamping assembly has two oppositely arranged first clamping blocks 132, and first positioning grooves 133 are formed on the sides of the two first clamping blocks 132 facing each other. When the driving component 131 drives the first clamping component to move until the adapter piece A3 enters between the two first clamping blocks 132, the first clamping component can control the two first clamping blocks 132 to close with each other. The adapter piece A3 is allowed to enter the first positioning grooves 133 of the two first clamping blocks 132, so that the adapter piece A3 is positioned using the first positioning grooves 133 on the two first clamping blocks 132.

In this way, when the tab A2 is folded in place, the driving component 131 drives the first clamping component to move the adapter piece A3 on the tab A2 of the battery cell A1 until the adapter piece A3 is located on both sides of the first clamping component. between the first clamping blocks 132 . Then, the first clamping assembly controls the two first clamping blocks 132 to close with each other, so that the adapter piece A3 enters the first positioning grooves 133 of the two first clamping blocks 132 . After the positioning of the adapter piece A3 is completed, the first clamping assembly controls the two first clamping blocks 132 to open to each other. Then, the driving component 131 drives the first clamping component to move away from the adapter piece A3 on the tab A2 of the battery core A1 until it returns to the initial position.

Optionally, the driving component 131 can drive the first clamping component to move along the first horizontal direction X to move closer to or away from the adapter piece A3 on the tab A2 of the battery core A1. The two first clamping blocks 132 are arranged opposite to each other in the vertical direction, thereby clamping the adapter piece A3 in the vertical direction. The first horizontal direction X is parallel to the length direction of the battery core A1 carried on the first carrying component 11 .

It should be noted that the battery core A1 has tabs A2 at both longitudinal ends, and each tab A2 also has an adapter piece A3. Specifically in one embodiment, each of the tab turning components 12 and the adjusting component 13 includes two, and the two tab turning components 12 are respectively arranged on both sides of the first load-bearing component 11 in the first horizontal direction X, so that The two tab folding assemblies 12 are used to respectively fold the tabs A2 at both longitudinal ends of the battery core A1 on the first carrying component 11 . The two adjusting components 13 are also respectively arranged on both sides of the first carrying component 11 in the first horizontal direction Use the adapter piece A3 on ear A2 to position it.

Please continue to refer to FIGS. 1 to 3 . In the specific embodiment, the first bearing assembly 11 includes a first support frame 110 , a first positioning driving member 112 , a first positioning member 114 and a second positioning member 116 . The first support frame 110 has a first support position (not labeled) for supporting the battery core A1. The first positioning driving member 112 is installed on the first support frame 110. The first positioning member 114 and the second positioning member 116 are located on both sides of the first support position in the second horizontal direction Y, and are in contact with the first positioning driving member. 112 driver connection. The first positioning driving member 112 can drive the first positioning member 114 and the second positioning member 116 toward or away from each other, thereby clamping or releasing the battery core A1 on the first support position. In this way, when the battery core A1 is placed on the first support position, the first positioning driving member 112 drives the first positioning member 114 and the second positioning member 116 to approach each other along the second horizontal direction Y until they are clamped along the second horizontal direction Y. Hold battery cell A1 at the first support position. Alternatively, the first positioning driving member 112 may be an air gripper.

Specifically in the embodiment, the first load-bearing assembly 11 also includes an adjustment drive assembly (not shown) that is drivingly connected to the first support frame 110. The adjustment drive assembly is used to drive the first support frame 110 to move along the first horizontal direction X. . Wherein, the first horizontal direction X is perpendicular to the second horizontal direction Y. In this way, when the battery core A1 is placed on the first support position on the first support frame 110, first, the first positioning driving member 112 drives the first positioning member 114 and the second positioning member 116 to close with each other until they are aligned along the second level. The direction Y clamps the battery core A1, that is, the battery core A1 is positioned in the second horizontal direction Y. Then, the first support frame 110 is driven to move along the first horizontal direction X by adjusting the driving assembly, thereby adjusting the position of the battery core A1 on the first support position in the first horizontal direction X. After the adjustment is in place, use the tab folding component 12 to fold the tab A2 of the battery core A1. After folding, use the adjusting component 13 to position the adapter piece A3 on the tab A2.

Please refer to FIGS. 11 to 14 . In the specific embodiment, the first transfer mechanism 20 includes a first mounting base 21 and a second clamping component 22 and a first positioning piece 23 installed on the first mounting base 21 . . The first mounting base 21 can controllably move between the tab folding station and the stacking station, and can controllably rise or fall. The second clamping assembly 22 has two oppositely arranged second clamping blocks 221 .

When the first mounting base 21 moves to the tab folding station, the first mounting base 21 is located above the first load-bearing component 11 , and during the descending process of the first mounting base 21 , the first positioning piece 23 can be inserted into the electrical connector. between the core A1 and the adapter piece A3 on the battery core A1, and the second clamping component 22 can control the two second clamping blocks 221 to clamp the battery core A1.

In this way, when it is necessary to bend the tab A2 of the battery core A1 on the first support frame 110, first, the first mounting base 21 is controlled to move to the tab folding station. Then, the first mounting base 21 is controlled to descend, thereby driving the second clamping component 22 and the first positioning piece 23 to move toward the battery core A1 on the first support frame 110 until the battery core A1 is located on the two second clamping blocks 221 between them, and the first positioning piece 23 is inserted between the battery core A1 and the adapter piece A3. Then, the tab folding mechanism 10 is used to fold the tab A2 of the battery core A1, so that the first positioning piece 23 can be used to position the adapter piece A3 on the tab A2, so that the adapter piece A3 can Follow the tab A2 and fold it into place.

When the battery core A1 on the first support frame 110 needs to be transferred to the stacking station, the second clamping component 22 controls the two second clamping blocks 221 to clamp the battery core A1 and controls the first mounting base 21 to rise to initial position. Finally, the first mounting base 21 is controlled to move toward the stacking station, and the battery core A1 is released to the stacking station.

It should be noted that when the tab A2 on the battery core A1 is folded, the first positioning piece 23 inserted between the battery core A1 and the adapter piece A3 on the battery core A1 is used to fold the adapter piece A3. Positioning will help improve the position accuracy of the adapter piece A3, thereby improving the welding quality.

Specifically in the embodiment, the first transfer mechanism 20 also includes a first moving driving component (not shown), which is drivingly connected to the first mounting base 21 to drive the first mounting base 21 to turn the pole lug. It moves between the folding station and the stacking station, and also drives the first mounting base 21 to rise or fall. It should be noted that the first moving driving component can use relatively mature existing technology, as long as it can drive the first mounting base 21 to move between the tab folding station and the stacking station, and also drive the first mounting base 21 to move between the tab folding station and the stacking station. The seat 21 can be raised or lowered, and there is no limitation here.

Specifically in this embodiment, the second clamping component 22 also has two oppositely arranged third clamping blocks 222 . When the second clamping component 22 controls the two second clamping blocks 221 to clamp the battery core A1, the second clamping component 22 can control the two third clamping blocks 222 to clamp the tabs A2 of the battery core A1. Adapter piece A3. In this way, the two third clamping blocks 222 are used to clamp the adapter piece A3, thereby positioning the adapter piece A3, and further avoiding positional deviation of the adapter piece A3 during the transfer process.

Optionally, two second clamping blocks 221 are arranged oppositely along the second horizontal direction Y, and two third clamping blocks 222 are arranged oppositely along the second horizontal direction Y. The second horizontal direction Y is parallel to the width direction of the battery core A1 carried on the first carrying component 11 . In this way, the two second clamping blocks 221 are used to clamp the battery core A1 along the second horizontal direction Y (ie, the width direction of the battery core A1), and at the same time, the two third clamping blocks 222 are also used to clamp the battery core A1 along the second horizontal direction Y. Hold adapter A3.

Specifically in the embodiment, the second clamping assembly 22 includes a second clamping driving member 223 and a first moving block 224 and a second moving block 225 connected to the driving end of the second clamping driving member 223 . The second clamping driving member 223 is used to drive the first moving block 224 and the second moving block 225 toward or away from each other.

The two second clamping blocks 221 are connected to the first moving block 224 and the second moving block 225 respectively, thereby following the first moving block 224 and the second moving block 225 to move closer to or away from each other. The two third clamping blocks 222 are respectively connected to the first moving block 224 and the second moving block 225, thereby following the first moving block 224 and the second moving block 225 to move closer or farther away from each other. In this way, when it is necessary to clamp the battery core A1, the second clamping driving member 223 drives the first moving block 224 and the second moving block 225 to approach each other, thus driving the two second clamping blocks 221 to approach each other until the battery core is clamped. A1, also drives the two third clamping blocks 222 to approach each other until the adapter piece A3 is clamped. Alternatively, the second clamping driver 223 may use an air claw.

Further, the first moving block 224 can be disposed on the first mounting base 21 through the slide block and the sliding rail, so that the movement of the first moving block 224 relative to the first mounting base 21 is guided by the sliding block and the sliding rail. Similarly, the second moving block 225 can also be disposed on the first mounting base 21 through the slide block and the sliding rail, so that the movement of the second moving block 225 relative to the first mounting base 21 is guided by the sliding block and the sliding rail.

Specifically in the embodiment, the lower side of the first mounting base 21 has an adsorption surface 211 for adsorbing the battery core A1, so that the second clamping component 22 can be used to clamp the battery core A1 while transporting the battery core A1. The adsorption surface 211 on the first mounting base 21 adsorbs and fixes the battery core A1, thereby ensuring stable and reliable grasping of the battery core A1 during the transfer process and avoiding the risk of electric shock. Core A1 dropped midway or the parameter position shifted.

Alternatively, the adsorption surface 211 can adopt negative pressure adsorption. For example, the adsorption surface 211 is provided with a plurality of adsorption holes connected to an external negative pressure source. By generating negative pressure in the adsorption holes, an adsorption force is generated on the battery core A1. Of course, in other embodiments, a suction cup may also be provided on the adsorption surface 211 so as to use the suction cup to adsorb the battery core A1.

Specifically in this embodiment, second positioning grooves 2221 are provided on the sides of the two third clamping blocks 222 facing each other (see Figure 14). When the second clamping component 22 controls the two second clamping blocks 221 to clamp the adapter piece A3 on the tab A2 of the battery core A1, the adapter piece A3 enters the second part of the two third clamping blocks 222. In the positioning groove 2221, the positioning of the adapter piece A3 is achieved. In this way, the second positioning grooves 2221 for receiving the adapter piece A3 are provided on the two third clamping blocks 222, which is beneficial to improving the positioning effect of the adapter piece A3 and improving the positioning accuracy.

It should be noted that both ends of the battery core A1 have tabs A2, and each tab A2 has an adapter piece A3. In order to position the adapter pieces A3 at both ends of the battery core A1 during the transfer process, in one embodiment, the first mounting base 21 is provided with second clamping assemblies 22 and 2 at both ends along the first horizontal direction X. The first positioning piece 23 has the first horizontal direction X parallel to the longitudinal direction of the battery core A1 carried on the first carrying component 11 . In this way, the second clamping component 22 and the first positioning piece 23 at one end of the first mounting base 21 are used to position the adapter piece A3 at one end of the battery cell A1, and the second clamping component at the other end of the first mounting base 21 is used to position the adapter piece A3. 22 and the first positioning piece 23 position the adapter piece A3 at the other end of the battery core A1. Specifically in the embodiment shown in FIG. 11 , a second clamping component 22 and a first positioning piece 23 are provided at both left and right ends of the first mounting base 21 , and the second clamping component at the left end of the first mounting base 21 is used. 22 and the first positioning piece 23 position the adapter piece A3 at the left end of the battery cell A1. The second clamping component 22 and the first positioning piece 23 at the right end of the first mounting base 21 are used to position the adapter piece A3 at the right end of the battery core A1.

Please refer to FIGS. 15 to 17 . In the specific embodiment, the stacking and flipping mechanism 30 includes a fixed base 31 , a flipping base 32 , a second support frame 33 and a third clamping component (not labeled). The flip base 32 is rotatably connected to the fixed base 31 , so that the flip base 32 can be controlled to rotate relative to the fixed base 31 . The second support frame 33 is connected to the flip base 32 so as to rotate relative to the fixed base 31 along with the flip base 32 . Moreover, the second support frame 33 has a second support position (not labeled) for carrying the battery core group A4, that is, the first transfer mechanism 20 stacks a plurality of battery cores A1 on the second support position in sequence, thereby forming Battery core group A4 supported on the second support position. The third clamping component is provided on the second support frame 33 and/or the flip base 32 and is used to fix the battery core group A4 carried on the second support position. In this way, first, the second support position of the second support frame 33 carries the electric cores A1 transferred by the first transfer mechanism 20 until the electric core group A4 formed by stacking a certain number of electric cores A1 is formed on the second support position. Then, the third clamping component is used to fix the battery core group A4, that is, each battery cell A1 of the battery core group A4 is fixed relative to the second support frame 33. Then, the flip base 32 is controlled to rotate 90° relative to the fixed base 31, so that the battery core group A4 on the second support position is flipped from a vertical stacking state to a horizontal stacking state, thereby realizing stacking and flipping of the battery cells A1.

Specifically in the embodiment, the stack flipping mechanism 30 also includes a plurality of first adapter plate positioning assemblies 35 that correspond one-to-one to the adapter plates A3 on each cell A1 of the cell group A4. Each first adapter plate positioning component 35 includes a second positioning driver 351 and a first positioning block 352 . The second positioning driving member 351 is installed on the second support frame 33 and connected with the first positioning block 352 The driving connection is used to drive the first positioning block 352 to move between the positioning position and the avoidance position. When the first positioning block 352 moves to the positioning position, the first positioning block 352 contacts the side of the adapter piece A3 on the corresponding battery core A1 that is away from the battery core A1. When the first positioning block 352 moves to the avoidance position, the first positioning block 352 is separated from the adapter piece A3 on the battery core A1. In this way, when the first transfer mechanism 20 transfers the first battery core A1 to the second support position of the second support frame 33, the first positioning block 352 corresponding to the adapter piece A3 of the first battery core A1 The second positioning driver 351 is driven to move to the positioning position, thereby positioning the adapter piece A3 of the first battery cell A1 to avoid positional deviation of the adapter piece A3 during the flipping process. When the first transfer mechanism 20 stacks the second battery core A1 onto the first battery core A1, the first positioning block 352 corresponding to the second battery core A1 moves under the drive of the second positioning driver 351. to the positioning position, thereby positioning the adapter piece A3 of the second battery cell A1 to avoid positional deviation of the adapter piece A3 during the flipping process. By analogy, the stacking of the required number of battery cells A1 is completed (for example, three battery cells A1 are stacked), and the adapter sheets A3 on each battery core A1 are positioned. Optionally, the second positioning driving member 351 may use a cylinder.

Further, a suction cup is provided on the side of the first positioning block 352 for contacting the adapter piece A3. In this way, when the first positioning block 352 moves to the positioning position, the suction cup on the first positioning block 352 is adsorbed and fixed to the adapter piece A3 on the corresponding battery core A1, thereby positioning the adapter piece A3.

Furthermore, a first positioning portion 3521 is protruding from the side of the first positioning block 352 for contacting the adapter piece A3. When the first positioning block 352 moves to the positioning position, the first positioning portion 3521 contacts the top of the adapter piece A3 to position the adapter piece A3 in the height direction.

Further, the second positioning driving member 351 drives the first positioning block 352 to move along the first horizontal direction X, and the third clamping component limits the battery cell group A4 along the second horizontal direction Y. The first horizontal direction X is parallel to the length direction of the battery core A1 on the second support position, and the second horizontal direction Y is parallel to the width direction of the battery core A1 on the second support position.

It should be noted that since each battery core A1 has pole tabs A2 at both longitudinal ends, and each pole tab A2 has an adapter piece A3, the second support frame 33 has two ends in the first horizontal direction X. The same number of first adapter piece positioning components 35 as the number of cells A1 of the cell group A4 are provided at each end to respectively position the adapter pieces A3 at both longitudinal ends of each cell A1 of the cell group A4.

Specifically in the embodiment, the third clamping component includes a first lifting driving member 341, a fourth clamping block 342 and a fixed clamping block 349. The second support frame 33 is arranged on the flip base 32 . The first lifting driving member 341 is installed on the second support frame 33 and is drivingly connected with the fourth clamping block 342 to drive the fourth clamping block 342 to move up and down to or leave the second support position in the second horizontal direction Y. side. The fixed clamping block 349 is installed on the second support frame 33 and is located on the other side of the second support position in the second horizontal direction Y. In this way, when stacking the battery cells A1, the first transfer mechanism 20 transfers the battery cells A1 to the second support position one by one, and uses the fixed clamping block 349 to position each battery core A1 stacked on the second support position. . After the battery core A1 is stacked, the first lifting driver 341 drives the fourth clamping block 342 to lift to the side of the second support position away from the fixed clamping block 349, that is, the fourth clamping block 342 and the fixed clamping block 349 are used. Each battery core A1 between the two is limited in the second horizontal direction Y. Optionally, the first lifting driving member 341 may use a cylinder.

Further, the third clamping component further includes a fixing plate 343, a pressing driving member 36, a clamping driving member 344 and a fifth clamping block 345. The fixed plate 343 is connected to the second support frame 33 in a liftable manner. The pressing driving member 36 is installed on the second support frame 33 and is drivingly connected with the fixed plate 343 to drive the fixed plate 343 to rise relative to the second support frame 33 . or decline. The clamping driving member 344 is installed on the fixed plate 343 and is drivingly connected with the fifth clamping block 345 to drive the fifth clamping block 345 to move in the horizontal direction (for example, the second horizontal direction Y) to the pressing position or the avoidance position. position.

When the fifth clamping block 345 moves to the pressing position, the fifth clamping block 345 is located above the second support position, so that when the pressing driving member 36 drives the fixed plate 343 to descend, the fifth clamping block 345 can be driven The block 345 presses against the top surface of the battery core group A4 on the second support position. When the fifth clamping block 345 moves to the avoidance position, the fifth clamping block 345 exits above the second support position, so that the first transfer mechanism 20 can transfer the battery cells A1 one by one to the second support position. Action to avoid. Alternatively, the abutment driving member 36 may use a pneumatic cylinder.

Specifically in the embodiment, the stack turning mechanism 30 includes a first state and a second state. When the stacking turning mechanism 30 is in the first state, the first lifting driving member 341 drives the fourth clamping block 342 to lift to one side away from the second support position in the second horizontal direction Y, and the clamping driving member 344 drives the fifth The clamping block 345 is located in the above-mentioned avoidance position. At this time, the first transfer mechanism 20 stacks the battery cores A1 to the second support position one by one until the required number of battery cores A1 is stacked on the second support position. It can be understood that during the process of stacking the battery core A1, the fixed clamping block 349 is used to position the battery core A1 in the width direction, and the first positioning block 352 is used to position the battery core A1 in the length direction.

When the stacking turning mechanism 30 is in the second state, the first lifting driving member 341 drives the fourth clamping block 342 to lift and lower to the side of the second supporting position in the second horizontal direction Y to cooperate with the fixed clamping block 349 The battery core group A4 on the second support position is limited in the second horizontal direction Y. Furthermore, the clamping driving member 344 drives the fifth clamping block 345 to move in the horizontal direction to the pressing position. At this time, when the driving member 36 drives the fixing plate 343 down, it can drive the fifth clamping block 345 to press against the top surface of the battery pack A4 at the second support position, that is, the battery pack A4 is pressed and fixed on the on the second support frame 33. Then, the flip base 32 is controlled to drive the battery pack A4 to flip 90°, so that the battery pack A4 is flipped from a vertical stacking state to a horizontal stacking state.

Specifically in the embodiment, the stacking turning mechanism 30 also includes a turning driving assembly 37, which includes a turning driving member, a driving wheel, a driven wheel and a transmission belt. The flip base 32 is rotatably connected to the fixed base 31 through a flip shaft 321 . The flip driving part is installed on the fixed seat 31, the driving wheel is installed on the output shaft of the flip driving part, the driven wheel is installed on the flip shaft 321, and the transmission belt is sleeved between the driving wheel and the driven wheel. In this way, when it is necessary to drive the flip base 32 to flip, the flip driving member drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the transmission belt, the driven wheel drives the flip shaft 321 to rotate, and then the flip shaft 321 drives the flip base 32 to rotate. Optionally, a motor can be used for the turning drive member.

It should be noted that the flipping drive assembly 37 is not limited to using a belt drive structure to realize the flipping of the flipping base 32 . Of course, other rotation transmission structures can also be used to achieve this, for example, a structure in which the motor is connected to the flip shaft 321 through a reducer can be used, which is not limited here.

Of course, in order to further improve the positioning effect of the adapter piece A3 during the flipping process, in other embodiments, the third The clamping component also includes a mounting plate and a second positioning piece. The mounting plate is installed on the driving end of the clamping driving member 344 to be driven by the clamping driving member 344 to move in the second horizontal direction Y. The fifth clamping block 345 and the second positioning piece are both installed on the mounting plate. When the fifth clamping block 345 presses the battery core group A4 onto the second support frame 33 , the second positioning piece is inserted between each battery cell A1 of the battery core group A4 and the adapter piece A3 thereon.

In this way, when it is necessary to use the fifth clamping block 345 to press the battery core group A4, the clamping driver 344 drives the fifth clamping block 345 to move along the second horizontal direction Y to the pressing position through the mounting plate. Then, the driving member 36 drives the fixing plate 343 down until the fifth clamping block 345 is driven to press the top surface of the battery core group A4 on the second support position, that is, the battery core group A4 is pressed and fixed on the second support. On rack 33. At the same time, the second positioning piece on the mounting plate is inserted from the top of the battery pack A4 between each cell A1 of the battery pack A4 and the adapter piece A3 above, so that the second positioning piece is used to align each adapter Positioning of the adapter piece A3 to further prevent the positional deviation of the adapter piece A3 during the flipping process of the battery pack A4, which is beneficial to improving the welding quality during subsequent welding.

Please refer to FIGS. 18 to 20 . In the specific embodiment, the second transfer mechanism includes a clamping jaw base 38 , a clamping jaw (not shown), and a second adapter plate positioning assembly (not shown). The clamping jaw base 38 can be controlled to move between the stacking station and the assembly station, and the clamping jaws are installed on the clamping jaw base 38 . The second adapter piece positioning assembly includes a second positioning block 381 and a pressing block 382 both installed on the clamping jaw base 38 .

When the clamping jaw base 38 drives the clamping jaws to move to the stacking station and clamp the battery core group A4, the second positioning block 381 is inserted into the side of the adapter piece A3 facing the battery cell A1 on each battery cell A1 of the battery group A4. , the pressing block 382 is inserted into the side of the adapter piece A3 on each cell A1 of the cell group A4 facing away from the cell A1. The pressing block 382 can controllably move closer to or away from the second positioning block 381, thereby pressing the adapter piece A3 onto the second positioning block 381 or releasing the compression of the adapter piece A3.

Specifically in the embodiment, the second positioning block 381 is provided with a plurality of third positioning grooves 3811 on the side facing the pressing block 382 that corresponds to the adapter piece A3 of each cell A1 of the cell group A4. When the clamping claws clamp the battery core group A4, the second positioning block 381 is inserted into the side of the adapter piece A3 on each battery cell A1 of the battery core group A4 facing the battery core A1. Each battery cell A1 of the battery core group A4 The adapter piece A3 is inserted into the corresponding third positioning slot 3811, and the pressing block 382 is used to press the adapter piece A3 in the third positioning slot 3811 to realize the adjustment of each cell A1 of the cell group A4. Positioning of adapter piece A3.

In this way, when it is necessary to transfer the battery core group A4 on the second support frame 33, first, the clamping jaw base 38 is controlled to move to the stacking station, and the clamping jaw base 38 is controlled to descend until the battery core group A4 on the second supporting frame 33 is transferred. A4 enters the clamping jaw. At this time, the clamping claws are controlled to clamp the battery core group A4, and the second positioning block 381 is inserted into the adapter piece A3 on each cell A1 of the battery group A4 facing the side of the cell A1, and each adapter piece A3 is located at the third The third positioning groove 3811 of the two positioning blocks 381, and the pressing block 382 is inserted into the side of the adapter piece A3 on each cell A1 of the cell group A4 facing away from the cell A1. Then, the pressing block 382 is controlled to move toward the second positioning block 381 until the adapter piece A3 is pressed into the third positioning groove 3811 on the second positioning block 381, thereby positioning the adapter piece A3. Then, the clamping jaw base 38 is controlled to rise, and then the clamping jaw base 38 is controlled to move to the assembly station, and the battery core group A4 is released to the assembly station. Optionally, the gripper can be an electric gripper or a pneumatic gripper.

Further, the side of the pressing block 382 facing the second positioning block 381 has a first area 3821 and is located in the first area. The second area 3822 below 3821. The first area 3821 is used to press the adapter piece A3 onto the second positioning block 381, and the second area 3822 is used to absorb and fix the adapter piece A3. In this way, the second area 3822 of the pressing block 382 is used to adsorb and fix the adapter piece A3, thereby further improving the positioning effect of the adapter piece A3 and improving the positioning accuracy. It can be understood that the second area 3822 can adsorb the adapter sheet A3 by opening an adsorption hole connected to an external air source or by providing a suction cup.

Specifically in the embodiment, the second adapter piece positioning assembly also includes a pressing driving member 383. The pressing driving member 383 is installed on the clamping jaw seat 38, and the pressing block 382 is installed on the driving end of the pressing driving member 383. The pressing driving member 383 is configured to drive the pressing block 382 toward or away from the second positioning block 381 . Optionally, the pressing driving member 383 may use a pneumatic cylinder.

Specifically in the embodiment, the second transfer mechanism also includes a second moving drive assembly (not shown), which is drivingly connected to the clamping jaw base 38 to drive the clamping jaw base 38 to the assembly station at the stacking station. It moves between positions, and also drives the clamping jaw base 38 to rise or fall. It should be noted that the second mobile driving component can use relatively mature existing technology, as long as it can drive the clamping jaw base 38 to move between the stacking station and the assembly station, and also drive the clamping jaw base 38 to rise or fall. That’s it, no restrictions are made here.

Please refer to FIGS. 21 to 24 . In the specific embodiment, the assembly device 4 includes a third support frame 41 and a guide block 42 . The third support frame 41 has a third support position (not labeled) for carrying the top cover B1 and the battery pack A4. The guide block 42 is installed on the third support frame 41, and has a fourth positioning groove 421 on one side facing the third support position. When the top cover B1 is placed on the third support position, the side of the guide block 42 with the fourth positioning groove 421 is in contact with the top cover pin B2 of the top cover B1, thereby positioning the top cover pin B2. Effect.

The top surface of the guide block 42 has an insertion opening a connected with the fourth positioning groove 421 . When the second transfer mechanism transfers the battery core group A4 to the third support position of the third support frame 41, the adapter blade A3 on each battery cell A1 of the battery core group A4 is inserted into the fourth position through the insertion blade opening a. slot 421, so that the fourth positioning slot 421 has the effect of positioning the adapter piece A3, and makes the adapter piece A3 inserted into the fourth positioning slot 421 fit with the top cover pin B2 of the top cover, so that Welding the two later will help improve the welding quality.

Please refer to FIGS. 26 to 28 . In the specific embodiment, the top surface of the guide block 42 is provided with a first chamfered inclined surface 422 arranged around the insert opening a. In this way, when the second transfer mechanism drives the battery pack A4 to descend and releases the battery pack A4 to the top cover B1, the first chamfered slope 422 guides the adapter piece A3 into the fourth positioning groove 421 to avoid rotation. The phenomenon that the tab A3 cannot be inserted into the fourth positioning groove 421 occurs.

Specifically in this embodiment, the inner wall of the fourth positioning groove 421 has a plurality of protrusions 423 . The plurality of protrusions 423 are spaced apart from each other to divide the fourth positioning groove 421 into a plurality of sub-positioning grooves 4210 . When the second transfer mechanism transfers the battery core group A4 to the third support position, the adapter pieces A3 on each battery cell A1 of the battery core group A4 are inserted into the plurality of sub-positioning slots 4210 one by one. In this way, the fourth positioning groove 421 is divided into a plurality of sub-positioning grooves 4210 by using the plurality of protrusions 423, and each sub-positioning groove 4210 is used to position the adapter piece A3, which is beneficial to improving the positioning accuracy.

Further, the top end of each protruding portion 423 has two sub-positioning grooves 4210 respectively facing the two adjacent ones thereof. Second chamfer bevel 424. In this way, the two second chamfered slopes 424 on the top of the protruding portion 423 respectively guide the adapter pieces A3 of the two adjacent battery cells A1, so that the adapter pieces A3 of the two adjacent battery cells A1 can accurately Insert into the two sub-positioning grooves 4210 on both sides of the protruding portion 423 respectively.

Specifically in the embodiment shown in FIGS. 26 to 28 , the inner wall of the fourth positioning groove 421 has two protrusions 423 , and the two protrusions 423 divide the fourth positioning groove 421 into three sub-positioning grooves 4210 . When the second transfer mechanism transfers the battery core group A4 to the third support position, the adapter pieces A3 on the three battery cells A1 of the battery core group A4 are inserted into the plurality of sub-positioning slots 4210 one by one.

Please refer to Figures 21 to 24 again. In some embodiments, the assembly device 4 also includes a first blade positioning component 43. The first blade positioning component 43 includes a first blade driving component 431, a first blade The mounting base 432 and the first positioning insert 433. The first blade driving assembly 431 is installed on the third support frame 41 and is drivingly connected to the first blade mounting base 432 . The first positioning blade 433 is installed on the first blade mounting base 432 so that the first positioning blade 433 moves together with the first blade mounting base 432 .

The first blade driving assembly 431 is configured to controllably drive the first blade mounting base 432 to move along the third horizontal direction Z, and drive the first positioning blade 433 to be inserted into the top cover pin B2 of the top cover B1 The side away from the guide block 42.

In this way, after the top cover B1 is placed on the third support position, the first blade driving assembly 431 drives the first blade mounting base 432 to move along the third horizontal direction Z, thereby driving the first positioning blade 433 to be inserted into the top cover B1. The side of the top cover pin B2 of the cover B1 facing away from the guide block 42 presses the top cover pin B2 against the protruding portion 423 of the guide block 42 so that when the adapter piece A3 is inserted into each sub-positioning slot 4210 , each adapter piece A3 is tightly fitted to the top cover pin B2. Of course, in other embodiments, after each adapter piece A3 is inserted into each sub-positioning slot 4210, the first positioning plug 433 can be inserted into the top cover lead under the driving action of the first plug driving assembly 431. The side of the leg B2 away from the guide block 42 causes the top cover pin B2 to press against each adapter piece A3.

Specifically in the embodiment, the first blade driving assembly 431 is also configured to controllably drive the first blade mounting base 432 to move along the first horizontal direction X perpendicular to the third horizontal direction Z, thereby adjusting the first positioning. The position of the insert piece 433 in the first horizontal direction 433 can be accurately inserted into the gap on the side of the top cover pin B2 away from the guide block 42 when moving along the third horizontal direction Z. It should be noted that the first blade driving assembly 431 can adopt a relatively mature linear drive structure in the prior art, as long as it can drive the first blade mounting base 432 along the first horizontal direction X and the third horizontal direction that are perpendicular to each other. Just move Z, there is no limit here.

Specifically, in the embodiment shown in FIGS. 21 to 24 , the first horizontal direction The thickness direction of each cell A1 of the cell group A4 on the third support position (ie, the stacking direction of each cell A1) is parallel.

Specifically in the embodiment, the assembly device 4 further includes a second blade positioning component 44 , and the second blade positioning component 44 includes a second blade driving component 441 , a second blade mounting base 442 and a second positioning blade 443 . The second blade drive assembly 441 It is installed on the third support frame 41 and is drivingly connected with the second blade mounting base 442 . The second positioning insert 443 is installed on the second insert mounting base 442, and is located on both sides of the third support position in the third horizontal direction Z with the first positioning insert 433.

The second blade driving assembly 441 is configured to controllably drive the second blade mounting base 442 to move along the third horizontal direction Z, and drive the second positioning blade 443 to be inserted into the top cover B1 away from the top cover pin B2 One side of the guide block 42. In this way, the first positioning insert 433 and the second positioning insert 443 are respectively inserted from both sides of the battery pack A4 in the third horizontal direction Z to the side of the top cover pin B2 away from the guide block 42, so that the top cover The pin B2 is in close contact with each adapter piece A3 under the extrusion of the first positioning insert 433 and the second positioning insert 443 .

Specifically in the embodiment, the second blade driving assembly 441 is also configured to controllably drive the first blade mounting base 432 to move along the first horizontal direction X perpendicular to the third horizontal direction Z, thereby adjusting the second positioning. The position of the insert piece 443 in the first horizontal direction 443 can be accurately inserted into the gap on the side of the top cover pin B2 away from the guide block 42 when moving along the third horizontal direction Z. It should be noted that the second blade driving assembly 441 can adopt a relatively mature linear drive structure in the prior art, as long as it can drive the second blade mounting base 442 along the first horizontal direction X and the third horizontal direction that are perpendicular to each other. Just move Z, there is no limit here.

It should also be noted that the second blade positioning component 44 is not necessary, and only the first blade positioning component 43 may be provided. In the embodiment in which only the first positioning blade positioning component 43 is provided, only the first positioning blade 433 is used to position the top cover pin B2. Therefore, the first positioning blade 433 has a long length and is easily deformed, affecting the positioning. Effect.

Of course, the first blade positioning component 43 and the second blade positioning component 44 can also be provided at the same time. In the embodiment where the first blade positioning assembly 43 and the second blade positioning assembly 44 are provided at the same time, since the first positioning blade 433 and the second positioning blade 443 are used to simultaneously position the top cover pin B2, it is possible to The length of a single positioning insert is greatly reduced, avoiding deformation due to a long single positioning insert, and greatly improving positioning accuracy.

It should also be noted that each battery cell A1 of the battery core group A4 has pole tabs A2 at both longitudinal ends, and each pole tab A2 has an adapter piece A3. As shown in Figure 25, the top cover B1 has top cover pins B2 at both longitudinal ends of the cell A1. In order to make each adapter piece A3 located at the same end of the battery pack A4 closely fit with the top cover pin B2, both ends of the third support frame 41 in the first horizontal direction X are provided with guide blocks 42 and first insert pieces. Positioning component 43 and second insert positioning component 44. The guide block 42, the first blade positioning assembly 43 and the second blade positioning assembly 44 located at one end of the third support frame 41 position each adapter piece A3 and the top cover pin B2 at one end of the battery pack A4. Make it fit snugly. The guide block 42, the first blade positioning assembly 43, and the second blade positioning assembly 44 located at the other end of the third support frame 41 perform the operation on each adapter piece A3 and the top cover pin B2 at the other end of the battery core group A4. Position it for a snug fit.

For example, in the embodiment shown in FIG. 22 , the left and right ends of the battery pack A4 are provided with adapter pieces A3 . The top cover B1 has top cover pins B2 at both left and right ends. The left and right ends of the third support frame 41 are provided with guide blocks 42, a first blade positioning component 43 and a second blade positioning component 44. The guide block 42 located at the left end of the third support frame 41, the first blade positioning assembly 43 and the The two blade positioning components 44 are used to position each adapter blade A3 at the left end of the battery pack A4 and the top cover pin B2 so that they fit closely with each other. The guide block 42, the first blade positioning assembly 43 and the second blade positioning assembly 44 located at the right end of the third support frame 41 are used to position each adapter piece A3 and top cover pin B2 at the right end of the battery pack A4. making them fit closely together.

In some embodiments, the assembly device 4 further includes a fourth clamping component (not labeled), which includes a clamping drive component (not labeled) and two sixth clamping blocks 451 . The clamping drive assembly is installed on the third support frame 41, and the two sixth clamping blocks 451 are respectively located on both sides of the third support position in the third horizontal direction Z, and are drivingly connected with the clamping drive assembly, so as to be driven by the clamping drive assembly. The clamping driving components drive each other closer or farther away, thereby clamping or releasing the battery core group A4 along the third horizontal direction Z. In this way, after the positioning of each adapter piece A3 of the battery core group A4 and the top cover pin B2 of the top cover B1 is completed, the clamping drive assembly drives the two sixth clamping blocks 451 to approach each other along the third horizontal direction Z until the clamping Hold the battery pack A4 so that the position of the battery pack A4 will not shift when moving to the next work station. When each adapter piece A3 of the battery core group A4 and the top cover pin B2 need to be unloaded after welding is completed, the clamping drive assembly drives the two sixth clamping blocks 451 to move away from each other along the third horizontal direction Z, thereby releasing the To clamp the battery core group A4, the battery core group A4 and the top cover B1 on the third support frame 41 can be unloaded at this time.

It should be noted that the clamping driving assembly can be an electric claw, an air claw or other driving components, as long as it can drive the two sixth clamping blocks 451 to move closer to or away from each other, which is not limited here.

Specifically in the embodiment, the welding equipment also includes a top cover loading device, which is used to transfer the top cover B1 of the top cover loading station to the third support of the third support frame 41 of the assembly device 4 Position. When the top cover B1 is transferred to the third support position, the top cover pin B2 faces upward, so that when the second transfer mechanism transfers the battery pack A4 to the top cover B1 of the third support position, each rotation of the battery pack A4 The tab A3 is inserted into the corresponding sub-positioning groove 4210 and closely fits the top cover pin B2.

It should be noted that the top cover loading device can adopt relatively mature existing technologies, such as a loading robot, etc., which is not limited here.

Specifically in the embodiment, the welding equipment also has a welding station and a blanking station. The welding equipment also includes a conveying device (not shown), and the assembly device 4 is arranged on the conveying device. The conveying device is used to convey the assembly device 4 in order to circulate between the assembly station, the welding station and the blanking station.

When the assembly device 4 is located at the welding station, the welding device welds the adapter piece A3 and the top cover pin B2 on the assembly device 4 . When the assembly device 4 is located at the unloading station, the battery core group A4 and the top cover B1 on the assembly device 4 are unloaded. In this way, in actual use, first, the conveying device transports the assembly device 4 to the assembly station. At this time, the top cover loading device transfers the top cover B1 to the third support position of the third support frame 41, and the second transfer The mechanism transfers the battery pack A4 to the top cover B1 at the third support position, so that each adapter piece A3 of the battery pack A4 is inserted into the corresponding sub-positioning slot 4210 and closely fits the top cover pin B2. The fourth clamping component is used to clamp the battery core group A4 so that the battery core group A4 is fixed on the third support position of the third support frame 41 . Then, the conveying device transports the assembly device 4 to the welding station, and the welding device welds the closely fitting adapter piece A3 and the top cover pin B2. After the welding is completed, the conveying device transports the assembly device 4 to the unloading station. At this time, the unloading device is used to unload the battery core group A4 and the top cover B1 on the assembly device 4 . After the unloading is completed, the conveying device will The assembly device 4 is transported to the assembly station so that the assembly device 4 can be recycled and reused.

Further, the unloading device transfers the battery core group A4 and the top cover B1 on the assembly device 4 to the inspection station. Inspect the battery pack A4 and top cover B1 at the inspection station. When the welding is unqualified, the unloading device will transport the battery core A1 and the top cover B1 to the unloading conveyor line. When the welding is qualified, the unloading device will transport the battery core A1 and the top cover B1 to the glueing station. Apply glue.

It should be noted that a plurality of assembly devices 4 are provided on the conveyor device, and the plurality of assembly devices 4 are circulated and conveyed on the conveyor device. That is, each assembly device 4 performs corresponding processes at different stations at the same time, which is beneficial to improving production efficiency.

Furthermore, the conveying device can also convey the assembly device 4 to the first transfer station and the second transfer station. The first transfer station is adjacent to the welding station, and the second transfer station is adjacent to the blanking station. In this way, since the processing time of each station is different, the first transfer station and the second transfer station are set up to coordinate the transfer rhythm of each assembly device 4 at each station.

Furthermore, the conveying device can also convey the assembly device 4 to the dust removal station located downstream of the welding station. When the assembly device 4 arrives at the dust removal station, the impurities generated after welding are cleaned and collected.

It should be noted that before the welding device welds the adapter piece A3 and the top cover pin B2, the defocus amount needs to be calibrated, that is, the distance between the welding head of the welding device and the welding surface needs to be calibrated. In the existing technology, a laser displacement sensor is often used to detect the defocus amount. However, the inventor of this application found that since the material of the welding surface of the adapter piece is copper and aluminum, the welding surface is obviously reflective, so the stability of the detection method using reflection to detect displacement cannot meet the production requirements, and false alarms are often caused, which affects The welding yield of the complete machine.

In order to solve the above phenomenon of easy false alarms, in the embodiment of the present application, a contact displacement sensor is installed on the welding device. The contact displacement sensor is used to detect the distance between the welding device and the third support frame 41, thereby indirectly The distance between the welding head of the welding device and the welding surface (ie, the amount of defocus) can be obtained.

It should be noted that the method is not limited to the above method of flipping the tabs A2 of the battery cells A1 one by one, and then stacking multiple battery cells A1 to form the battery core group A4. In other embodiments, the tabs A2 on each cell A1 of the cell group A4 can also be bent simultaneously. This application also provides a second embodiment. The difference between the second embodiment and the first embodiment mainly lies in the cell processing unit. Please refer to Figures 29 to 34. In the second embodiment, the cell processing unit includes a transfer device 20' (see Figure 41 or Figure 42) and a tab bending device 10' (see Figure 41 or Figure 42) . The tab bending device 10' is used to fold the tab A2 of each cell A1 of the cell group A4, so that the adapter piece A3 on the tab A2 is folded from the vertical state to the parallel state following the tab A2. When the adapter piece A3 is in a vertical state, the adapter piece A3 is approximately perpendicular to the end of the battery core A1; when the adapter piece A3 is in a parallel state, the adapter piece A3 is approximately parallel to the end of the battery core A1. The transfer device 20' is used to transport the battery core group A4 on the tab bending device 10' to the assembly device. The welding device is used to weld each adapter piece A3 on the battery core group A4 on the assembly device and the top cover pins on the top cover.

Please refer to FIGS. 35 to 37 . In the specific embodiment, the tab bending device 10 ′ includes a second bearing component 11 ′, a bending component 12 ′ and a positioning component 13 ′. The second carrying component 11' is used to carry a plurality of battery cores A1 stacked along the third direction Z. The battery core group A4 is formed. The bending component 12' has a bending portion 121' located on one side of the battery core group A4 in the third direction Z (specifically, in the embodiment shown in FIG. 35, the bending portion 121' is located on the left side of the battery core group A4. side), and the adapter piece A3 is located on the side of the tab A2 close to the bending portion 121' on each battery cell A1. The positioning component 13' has a plurality of second positioning parts 131' corresponding to the plurality of cells A1 of the cell group A4. Each second positioning portion 131' is used to abut the side of the corresponding tab A2 away from the bending portion 121' (specifically, in the embodiment shown in FIG. 35, each second positioning portion 131' is used to abut against the side of the corresponding tab A2 away from the bending portion 121'. The right sides of the tabs A2 of the corresponding battery core A1 are in contact with each other). The bending portion 121' can controllably move along the third direction Z, thereby pushing the tab A2 of each battery core A1 to bend with the corresponding second positioning portion 131' as a fulcrum.

When the above-mentioned tab bending device 10' is actually used, the battery core group A4 formed by stacking a plurality of battery cores A1 along the third direction Z is first placed on the second carrier component 11'. At this time, each second positioning portion 131' abuts against the side of the tab A2 of the corresponding battery core A1 that is away from the bending portion 121'. Then, the bending portion 121' moves along the third direction Z, thereby sequentially pushing the tabs A2 of each battery core A1 to bend approximately 90° with the corresponding second positioning portion 131' as a fulcrum. That is to say, the cooperation between the bending portion 121' and each second positioning portion 131' is used to simultaneously bend the tab A2 of each battery core A1, so that the adapter piece on the tab A2 of each battery core A1 A3 flips from the vertical state to the parallel state, thus greatly speeding up the production cycle and improving production efficiency.

Specifically in this embodiment, the second bearing component 11' includes a fourth support frame 110' and two clamping plates 111'. The two clamping plates 111' are arranged on the fourth support frame 110' opposite to each other along the third direction Z, and an accommodation space for accommodating the battery core group A4 is formed between the two clamping plates 111'. The two clamping plates 111' can be controlled to move closer to or away from each other, thereby clamping or releasing the battery pack A4. In this way, during loading, the battery core group A4 is transferred between the two clamping plates 111', and the two clamping plates 111' are controlled to be close to each other until the battery core group A4 is clamped along the third direction Z. During unloading, the two clamping plates 111' are controlled to move away from each other to loosen the battery core group A4, thereby facilitating the transfer of the battery core group A4 to the next work station.

Specifically in the embodiment, the second load-bearing component 11' also includes a clamping drive mechanism (not shown) and an elastic member (not shown). The clamping driving mechanism is provided on the fourth support frame 110' and is drivingly connected with the two clamping plates 111' to drive the two clamping plates 111' away from each other to release the battery core group A4. Opposite ends of the elastic member are respectively connected to the two clamping plates 111' to provide a pre-tightening force that causes the two clamping plates 111' to have a tendency to move closer to each other. In this way, when it is necessary to release the battery core group A4, the clamping driving mechanism drives the two clamping plates 111' to move away from each other, thereby releasing the clamping of the battery core group A4. When it is necessary to clamp the battery core group A4, the clamping driving mechanism stops driving the two clamping plates 111', so that the two clamping plates 111' move closer to each other under the action of the elastic member until the battery core group A4 is clamped. Alternatively, the elastic member may be a tension spring.

It should be noted that the clamping driving mechanism can adopt relatively mature existing technologies, such as a cam driving mechanism, etc., as long as it can drive the two clamping plates 111' to move away from or approach each other, and is not limited here.

Optionally, the fourth support frame 110' is provided with a first slide rail a1' extending longitudinally along the third direction Z, and both clamping plates 111' are provided with a first slide rail a1' that slides with the first slide rail a1'. Slider a2'. In this way, the movement of the two first slide blocks a2' along the first slide rail a1' is used to guide the movement of the two clamping plates 111' relative to the fourth support frame 110', so that the two clamping plates 111' can be clamped and loosened The action is more stable and reliable.

Please refer to Figures 38 to 40. In the specific embodiment, the positioning assembly 13' includes a moving driving mechanism 134', a moving base 132' and a positioning base 133'. The moving base 132' is drivingly connected to the moving driving mechanism 134'. The plurality of second positioning parts 131' are connected to the moving base 132', and the positioning base 133' is connected to the moving base 132', so that each second positioning part 131' and the positioning base 133' can follow the moving base 132'. move. The positioning base 133' has a plurality of fifth positioning grooves 1331' corresponding to the plurality of battery cores A1.

Among them, the moving driving mechanism 134' is used to drive the moving base 132' to move along the second direction Y perpendicular to the third direction Z, so that the adapter piece A3 on each bent tab A2 is inserted into the corresponding third direction Y. The fifth positioning groove 1331' is used to position the adapter piece A3.

In this way, when the bending portion 121' moves along the third direction Z and pushes against the tab A2 of each battery cell A1 for bending, the moving driving mechanism 134' drives the moving base 132 toward each adapter piece A3 along the second direction Y. Move until each adapter piece A3 is inserted into the corresponding fifth positioning groove 1331', thereby realizing the positioning of each adapter piece A3. Then, the bending portion 121' returns to the initial position along the third direction Z, thereby avoiding the reverse flipping of the adapter piece A3 when the bending portion 121' returns.

Specifically in the embodiment, the mobile driving mechanism 134' is also used to drive the mobile base 132' to move along the third direction Z to drive each second positioning part 131' and the tab A2 of the corresponding battery core A1 away from the bending part. 121' against each other on one side. In this way, when the battery core group A4 is carried on the second carrying component 11', there is a certain gap between each second positioning portion 131' and the corresponding tab A2 of the battery core A1. First, the moving driving mechanism 134' drives the moving base 132' to move along the third direction Z until each second positioning portion 131' is driven to directly contact the tab A2 of the corresponding battery core A1 and abut against each other. Then, the bending portion 121' moves along the third direction Z to push the tab A2 of each battery core A1 to complete the bending. Then, the moving driving mechanism 134' drives the moving base 132' to move toward each adapter piece A3 along the second direction Y until each adapter piece A3 is inserted into the corresponding fifth positioning groove 1331', thereby realizing the alignment of each adapter piece A3. Positioning of tab A3. Then, the bending portion 121' returns to the initial position along the third direction Z.

Specifically in the embodiment, the mobile driving mechanism 134' includes a base 1341', a first driving member 1342' and a second driving member 1343'. The first driving member 1342' is installed on the base 1341', and the second driving member 1343' is installed on the driving end of the first driving member 1342'. The moving base 132' is installed on the driving end of the second driving member 1343'. Among them, the first driving member 1342' is used to drive the second driving member 1343' to move along the second direction Y, thereby driving the moving base 132' and the positioning base 133' on the moving base 132' to move along the second direction Y, so that The adapter piece A3 of each battery cell A1 is inserted into the corresponding fifth positioning slot 1331'. The second driving member 1343' is used to drive the movable base 132' to move along the third direction Z, thereby driving the movable base 132' and each second positioning portion 131' on the movable base 132' to move along the third direction Z, so that each The second positioning portion 131' abuts against the tab A2 of the corresponding battery core A1, so that the tab A2 of each battery core A1 can be positioned with the corresponding second positioning portion 131' under the pushing action of the bending portion 121'. Create a bend for the pivot point. Optionally, both the first driving member 1342' and the second driving member 1343' may use cylinders.

It should be noted that in other embodiments, the first driving member 1342' is used to drive the second driving member 1343' to move along the third direction Z, and the second driving member 1343' is used to drive the moving base 132' along the second direction Z. Move in direction Y, as long as it can be driven Each second positioning portion 131' abuts against the tab A2 of the corresponding battery core A1, and the adapter piece A3 of each battery core A1 can be inserted into the corresponding fifth positioning groove 1331', which is not limited here.

Specifically in the embodiment, the positioning base 133' also has a third chamfered bevel 1334' arranged around each fifth positioning groove 1331', so that the third chamfered bevel 1334' can be used to introduce the adapter piece A3 to In the corresponding fifth positioning groove 1331', it is helpful to ensure that the adapter piece A3 on each battery cell A1 can be accurately inserted into the corresponding fifth positioning groove 1331'.

Please continue to refer to Figures 35 to 37. In the specific embodiment, the bending assembly 12' includes a bending driving mechanism 122' and a second mounting base 123' installed at the driving end of the bending driving mechanism 122'. The bending driving mechanism 122' is used to drive the second mounting base 123' to move along the third direction Z. The above-mentioned bending portion 121' is provided on the second mounting base 123', so as to move along the third direction Z along with the second mounting base 123', so as to push and bend the tabs A2 of each battery core A1 in turn. . Alternatively, the bending driving mechanism 122' may adopt a cylinder driving mechanism. It should be noted that in other embodiments, the bending driving mechanism 122' may also use other types of linear driving mechanisms, as long as it can drive the second mounting base 123' to move along the third direction Z, which is not limited here. .

Specifically in this embodiment, the bending part 121' is a bending roller, and the bending roller is rotatably connected to the second mounting base 123'. In this way, the bending roller is used to push and bend the tabs A2 of each battery core A1 in sequence. During the pushing process, the bending roller can roll, that is, the friction between the bending portion 121' and the tabs A2 is rolling friction. , thereby making the pushing action of the bending portion 121' on each tab A2 smoother.

It should be noted that since each cell A1 of the cell group A4 has tabs A2 at both ends in the first direction X that is perpendicular to the third direction Z and the second direction Y, each tab A2 is connected to There is an adapter piece A3, so the tabs A2 at both ends of each battery core A1 in the first direction X need to be bent at the same time. Specifically in this embodiment, the number of bending components 12' is two, and the two bending components 12' are respectively located at both ends of the battery core group A4 in the first direction X. The number of positioning components 13' is also two, and the two positioning components 13' are respectively located at both ends of the battery core group A4 in the first direction X. In this way, the bending component 12' and the positioning component 13' located at the same end of the battery core group A4 cooperate to achieve the bending of the tab A2 of each battery core A1 at this end, thereby achieving the relative positioning of each battery core A1 of the battery core group A4. The tabs A2 at both ends are bent simultaneously. It should be noted that, in order to simplify the drawings, only one bending component 12' and a positioning component 13' are shown in the drawings.

Please refer to Figures 41 to 42. In the specific embodiment, the transfer device 20' includes a transfer moving mechanism (not shown) and a grabbing mechanism (not labeled). The grabbing mechanism includes a transfer seat 21', two A first clamping block 22' and a positioning plate 23'. The transfer base 21' is installed at the driving end of the transfer moving mechanism. The two first clamping blocks 22 are arranged on the transfer base 21' opposite to each other, and the two can be controllably moved closer to or farther away from each other to clamp or release the electrical components on the second carrying component 11' along the third direction Z. Core set A4.

The positioning plate 23' is connected to the transfer base 21', and has a plurality of third positioning pieces 231' corresponding to the plurality of cells A1 of the cell group A4. When the two first clamping blocks 22' clamp the battery core group A4 along the third direction Z, each third positioning piece 231' on the positioning plate 23' is positioned and matched with the corresponding adapter piece A3 on the battery core A1. , to position the adapter piece A3 (that is, to fix the adapter piece A3 relative to the battery core A1) to avoid clamping the battery core group A4, transferring the battery core group A4, and releasing the battery core. In group A4, the position of adapter piece A3 is offset relative to battery core A1. Optionally, when the two first clamping blocks 22' clamp the battery core group A4 along the third direction Z, each third positioning piece 231' on the positioning plate 23' is inserted into the corresponding battery core A1 and the adapter. between the pieces A3, thereby achieving positioning cooperation between the third positioning piece 231' and the adapter piece A3. Of course, in other embodiments, other placements may also be used to achieve positioning cooperation between the third positioning piece 231 ′ and the adapter piece A3 , for example, the two directly abut or fit together, which is not limited here.

It should be noted that the transfer and moving mechanism can use relatively mature existing technologies, such as a robotic arm, as long as it can clamp the battery core group A4, transfer the battery core group A4, and release the battery core group A4, which is not limited here.

Specifically in the embodiment, the number of positioning plates 23' is two, and the two positioning plates 23' are respectively connected to the opposite ends of the transfer seat 21'. When the two first clamping blocks 22' clamp the battery core group A4 along the third direction Z, the two positioning plates 23' are respectively located at both ends of the battery core group A4 in the first direction X, so that the two positioning plates 23 The third positioning piece 231' on the battery cell group A4 respectively positions the adapter pieces A3 at the opposite ends of each cell A1 of the cell group A4.

Specifically in the embodiment, the grabbing mechanism also includes two second clamping blocks 24' arranged on the transfer seat 21' opposite to each other, and the two second clamping blocks 24' are used to clamp or loosen along the first direction X. Turn on battery pack A4.

Furthermore, a plurality of limiting grooves are provided on both sides of the two second clamping blocks 24' facing each other. When the two second clamping blocks 24' clamp the battery core group A4 along the first direction Connect piece A3 for positioning.

Alternatively, the two second clamping blocks 24' can be driven by a driving member such as a cylinder to move closer to or farther away from each other, thereby clamping or releasing the battery core group A4 along the first direction X.

The operation process of the tab bending device 10' in the second embodiment will be described below with reference to Figure 35:

First, the two clamping plates 111' are controlled to clamp the battery core group A4 along the third direction Z. At this time, each second positioning portion 131' on the moving base 132' is located between the tabs A2 of the two adjacent battery cores A1. Then, the second driving member 1343' drives the moving base 132' to move to the left until each second positioning portion 131' on the moving base 132' is driven to contact the pole tab A2 on the left side respectively. Then, the bending driving mechanism 122' drives the bending portion 121' to move to the right, thereby pushing each pole tab A2 in turn to bend 90° to the right. Then, the second driving member 1343' drives the moving base 132' to move upward, so that the adapter piece A3 on each battery core A1 is inserted into each fifth positioning groove 1331' on the positioning base 133'. Then, the bending driving mechanism 122' drives the bending part 121' to move to the left and reset. Then, the second driving member 1343' drives the moving base 132' to move downward, so that the adapter piece A3 of each battery core A1 exits each fifth positioning slot 1331'. The two clamping plates 111' are controlled to release the battery core group A4, and the transfer device 20' is used to transport the battery core group A4 between the two clamping plates 111' to the assembly device.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-mentioned embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they cannot be used for this reason. This should be understood as a limitation on the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

A kind of welding equipment, characterized in that, the welding equipment includes:

The battery core processing unit is used to fold the tabs on each battery core in the battery core group and transport the battery core group;

An assembly device for receiving the top cover and the battery core group transported by the battery core processing unit, so that the top cover pins of the top cover are in contact with the rotating pins on the pole tabs of each battery cell of the battery core group. tab fit; and

A welding device is used to weld the adapter piece on the top cover pin of the top cover on the assembly device and the pole lug of each cell of the cell group.
The welding equipment according to claim 1, wherein the battery core processing unit includes a tab turning device and a stack turning device; the tab turning device includes a tab turning mechanism and a first transfer mechanism, The tab folding mechanism is used to carry the battery core and fold the tabs of the battery core, and the first transfer mechanism is used to transfer the battery core on the tab folding mechanism to the stacking and turning device. superior;

The stacking and flipping device includes a stacking and flipping mechanism and a second transfer mechanism. The stacking and flipping mechanism is used to carry a plurality of electric cores that are transferred in sequence by the first transfer mechanism to stack and form the electric core group. The battery core set is turned over; the second transfer mechanism is used to transfer the battery core set to the assembly device.
The welding equipment according to claim 2, wherein the tab turning mechanism includes a first carrying component and a tab turning component;

The first carrying component is used to carry the battery core. The tab folding component includes a base, a lifting frame and a folding roller. The lifting frame is connected to the base in a controlled lifting and lowering manner. The folding roller Rotably connected to the lifting frame;

Wherein, when the lifting frame drives the folding roller to rise and fall, the folding roller can resist and push the tabs of the battery core to fold.
The welding equipment according to claim 3, characterized in that the tab folding mechanism further includes an adjustment component, the adjustment component includes a driving component and a first clamping component, the first clamping component is installed on the The driving end of the driving component is used to drive the adapter piece on the tab close to or away from the battery core by the driving component; the first clamping component has two oppositely arranged first clamping blocks, and the two first clamping blocks are arranged oppositely. First positioning grooves are provided on the sides of the first clamping blocks facing each other;

Wherein, when the driving component drives the first clamping component to move until the adapter piece enters between the two first clamping blocks, the first clamping component can control the two first clamping blocks. The holding blocks are closed together so that the adapter piece is limited in the first positioning grooves of the two first clamping blocks.
The welding equipment according to claim 2, wherein the first transfer mechanism includes a first mounting base and a second clamping component and a first positioning piece installed on the first mounting base;

The first mounting base can controllably move between the tab folding mechanism and the stack turning mechanism, and can controllably rise or fall; the second clamping assembly has two oppositely arranged second clamping block;

When the first mounting seat moves to the tab turning mechanism, the first mounting seat is located above the tab turning mechanism, and during the descending process of the first mounting seat, The first positioning piece can be inserted between the battery core and the adapter piece time, and the second clamping component can control the two second clamping blocks to clamp the battery core.
The welding equipment according to claim 5, wherein the second clamping assembly further has two oppositely arranged third clamping blocks;

When the second clamping component controls the two second clamping blocks to clamp the battery core, the second clamping component can control the rotation of the tabs of the two third clamping blocks to clamp the battery core. splice.
The welding equipment according to claim 6, characterized in that second positioning grooves are provided on the sides of the two third clamping blocks facing each other;

When the second clamping assembly controls the two second clamping blocks to clamp the adapter piece on the tab of the battery core, the adapter piece is limited to the two third clamping blocks. inside the second positioning slot.
The welding equipment according to claim 2, characterized in that the stack turning mechanism includes a fixed base, a turning base, a second support frame and a third clamping component;

The flip base is rotatably connected to the fixed base in a controllable manner, and the second support frame is connected to the flip base and has a second support position for carrying the battery pack;

The third clamping component is provided on the second support frame and/or the flip seat, and is used to clamp the battery core group located on the second support position.
The welding equipment according to claim 8, wherein the stack turning mechanism further includes a plurality of first adapter plate positioning assemblies corresponding one-to-one to each cell of the cell group, and each of the first adapter plate positioning assemblies is An adapter piece positioning assembly includes a second positioning driving member and a first positioning block. The second positioning driving member is installed on the second support frame and is drivingly connected with the first positioning block to drive the The first positioning block moves to the positioning position;

When the first positioning block moves to the positioning position, the first positioning block contacts the side of the adapter piece on the tab of a corresponding battery core away from the battery core.
The welding equipment according to claim 2, characterized in that the second transfer mechanism includes a clamping jaw seat, a clamping jaw and a second adapter piece positioning assembly;

The clamping jaw base can controllably move between the stacking turning mechanism and the assembly device, and the clamping jaw is installed on the clamping jaw base; the second adapter plate positioning assembly includes components both installed on The second positioning block and pressing block on the clamping jaw seat;

When the clamping jaw seat drives the clamping jaw to move to the stacking turning mechanism and clamps the battery core group, the second positioning block is inserted into the adapter on each battery cell of the battery core group. The pressing block is inserted into the side of the adapter piece on each battery core of the battery core group facing away from the battery core. The pressing block can be controlled to face the second battery core. The positioning block moves closer or further away.
The welding equipment according to claim 10, characterized in that, the second positioning block is provided with a plurality of adapter pieces corresponding to one-to-one adapter plates of each battery core of the battery core group toward the side of the pressing block. third positioning slot;

When the clamping claw clamps the battery core group, the adapter piece on each battery core of the battery core group is inserted into the corresponding third positioning slot.
The welding equipment according to claim 2, characterized in that the assembly device includes a third support frame and a guide block, the third support frame has a third support position for carrying the top cover, and the guide block is installed A fourth positioning groove is provided on the third support frame and on one side facing the third support position;

When the top cover is carried on the third support position, the side of the guide block with the fourth positioning groove fits with the top cover pin of the top cover;

The top surface of the guide block has an insert opening connected to the fourth positioning groove. When the second transfer mechanism transfers the battery core group to the third support position, the battery core group The adapter piece on each battery core is inserted into the fourth positioning slot through the insert piece opening.
The welding equipment according to claim 12, characterized in that the top surface of the guide block is provided with a first chamfered inclined surface arranged around the opening of the insert piece.
The welding equipment according to claim 12, wherein the inner wall of the fourth positioning groove has a plurality of protrusions, and the plurality of protrusions are spaced apart from each other to separate the fourth positioning groove into Multiple sub-positioning slots;

When the second transfer mechanism transfers the battery core set to the third support position, the adapter pieces on each battery core of the battery core set are inserted into the plurality of sub-positioning grooves one by one. Inside.
The welding equipment according to claim 12, characterized in that the assembly device further includes a first blade positioning component, the first blade positioning component includes a first blade driving component, a first blade mounting seat and a first blade positioning component. The first positioning insert;

The first blade driving assembly is installed on the third support frame and is drivingly connected with the first blade mounting seat, and the first positioning blade is installed on the first blade mounting seat;

The first blade driving assembly is configured to controllably drive the first blade mounting base to move in a third horizontal direction, and drive the first positioning blade to be inserted into the top cover pin away from the top cover. One side of the guide block.
The welding equipment according to claim 15, characterized in that the assembly device further includes a second blade positioning component, the second blade positioning component includes a second blade driving component, a second blade mounting base and a second blade positioning component. Second positioning insert;

The second blade driving assembly is installed on the third support frame and is drivingly connected with the second blade mounting base, and the second positioning blade is installed on the second blade mounting base, And the first positioning inserts are respectively located on both sides of the third support position in the third horizontal direction;

The second blade driving assembly is configured to controllably drive the second blade mounting base to move along the third horizontal direction, and drive the second positioning blade to be inserted into the top cover lead of the top cover. The side of the foot away from the guide block.
The welding equipment according to claim 1, wherein the battery core processing unit includes a tab bending device and a transfer device;

The tab bending device includes a second carrying component, a bending component and a positioning component; the second carrying component is used to carry the battery core group formed by stacking a plurality of battery cores along a third direction;

The bending component has a bending portion located on one side of the battery core set in the third direction, and the adapter piece is located on each battery core on a side of the tab close to the bending portion; The positioning component has a plurality of second positions corresponding to the plurality of cells one-to-one. Positioning portion; each second positioning portion is used to abut against the side of the corresponding tab away from the bending portion; the bending portion can be controllably moved along the third direction to push against The tab of each battery core is bent with the corresponding second positioning portion as a fulcrum;

The transfer device is used to transfer the battery core group on the tab bending device to the assembly device.
The welding equipment according to claim 17, characterized in that the positioning assembly includes a moving driving mechanism, a moving base and a positioning base; the moving base is drivingly connected to the moving driving mechanism, and a plurality of the second positioning parts Connected to the movable base, the positioning base is connected to the movable base and has a plurality of fifth positioning slots corresponding to a plurality of battery cells;

Wherein, the moving driving mechanism is used to drive the moving base to move in the second direction, so that the adapter piece on each bent pole tab is inserted into the corresponding fifth positioning groove; The second direction is perpendicular to the third direction.
The welding equipment according to claim 18, characterized in that the mobile driving mechanism is also used to drive the mobile base to move in the third direction to drive each of the second positioning parts and the corresponding The side of the pole tab away from the bent portion abuts.
The welding equipment according to claim 18, characterized in that the positioning base further has a third chamfered slope arranged around each of the fifth positioning grooves.