Flow collector deviation correction device, deviation correction method and welding equipment

Abstract

The present application discloses a current collector disk alignment device, an alignment method, and a welding device, which relate to the technical field of battery processing. The current collector disk alignment device includes a current collector disk carrier, a current collector disk alignment mechanism, and a current collector disk loading mechanism; a first positioning structure is provided on the current collector disk carrier; the current collector disk alignment mechanism is used to convey the current collector disk carrier to the current collector disk loading mechanism, and includes an alignment feeding mechanism, an alignment member, and an adjustment mechanism; the alignment feeding mechanism and the current collector disk loading mechanism are arranged in sequence, and the alignment feeding mechanism is used to convey the current collector disk carrier; a second positioning structure is provided on the alignment member; the second positioning structure can cooperate with the first positioning structure to limit the rotational freedom of the current collector disk carrier located on the feeding path of the current collector disk alignment mechanism; the adjustment mechanism is used to adjust the distance between adjacent current collector disk carriers along the feeding path of the current collector disk alignment mechanism. This design has a simple structure and low cost.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing, and particularly to a current collector plate alignment device, an alignment method and a welding device. Background Art

[0002] When assembling existing cylindrical battery cells, it is necessary to weld and fix the current collector plate to the end of the battery cell. When welding the current collector plate, the battery cell is usually loaded first, and then the current collector plate is loaded through a loading mechanism such as a manipulator. When loading the current collector plate, a visual sensor such as a CCD is usually used to take a picture of the current collector plate to obtain information on the welding area on the current collector plate. After that, according to the obtained information, the current collector plate is aligned and then loaded onto the end of the battery cell in a specific posture, and then transported to the welding station for welding. This alignment method relying on visual sensors such as CCD has a relatively complex structure and high cost. Summary of the Invention

[0003] In view of this, the purpose of the present application is to provide a current collector plate alignment device, an alignment method and a welding device to solve the technical problems existing in the background art.

[0004] To achieve the above technical purpose, the present application provides a current collector plate alignment device, including a current collector plate carrier, a current collector plate alignment mechanism and a current collector plate loading mechanism;

[0005] A first positioning structure is provided on the current collector plate carrier;

[0006] The current collector plate alignment mechanism is used to transport the current collector plate carrier to the current collector plate loading mechanism, and includes an alignment feeding mechanism, an alignment member and an adjusting mechanism;

[0007] The alignment feeding mechanism and the current collector plate loading mechanism are arranged in sequence, and the alignment feeding mechanism is used to transport the current collector plate carrier;

[0008] A second positioning structure is provided on the alignment member;

[0009] The second positioning structure can cooperate with the first positioning structure to limit the rotational freedom of the current collector plate carrier located on the feeding path of the current collector plate alignment mechanism;

[0010] The adjusting mechanism is used to adjust the distance between adjacent current collector plate carriers along the feeding path of the current collector plate alignment mechanism.

[0011] Further, the alignment feeding mechanism is a linear feeding mechanism;

[0012] The alignment member is arranged on one side of the alignment feeding mechanism along the conveying path of the alignment feeding mechanism;

[0013] The adjusting mechanism is arranged on the other side of the deviation rectifying and feeding mechanism along the conveying path of the deviation rectifying and feeding mechanism.

[0014] Further, the first positioning structure is a groove structure;

[0015] The second positioning structure is a strip structure, distributed along the conveying path of the deviation rectifying and feeding mechanism, and can be slidably matched with the first positioning structure.

[0016] Further, a third positioning structure is provided on the manifold feeding mechanism;

[0017] The third positioning structure can be matched with the first positioning structure to limit the rotational freedom of the manifold carrier located on the manifold feeding mechanism.

[0018] Further, the manifold feeding mechanism includes a feeding driver and a feeding turntable;

[0019] The feeding driver is connected to the feeding turntable and is used to drive the feeding turntable to rotate;

[0020] A plurality of feeding positions for the manifold carriers to be snapped into are circumferentially arranged on the feeding turntable;

[0021] The third positioning structure is a disc structure;

[0022] The third positioning structure is coaxially arranged with the feeding turntable, and its outer peripheral edge can be movably snapped into the first positioning structure.

[0023] Further, the adjusting mechanism includes a screw driver and a conveying screw;

[0024] The screw driver is connected to the conveying screw and is used to drive the conveying screw to rotate;

[0025] The thickness of the thread on the conveying screw gradually increases from the input end to the output end of itself.

[0026] This application also discloses a manifold deviation rectifying method, which is applied to the above-mentioned manifold deviation rectifying device, and includes the steps:

[0027] Convey the manifold carrier loaded with the manifold through the deviation rectifying and feeding mechanism;

[0028] Limit the rotational freedom of the manifold carrier by matching the second positioning structure on the deviation rectifying part with the first positioning structure on the manifold carrier during the conveying process;

[0029] Adjust the distance between adjacent manifold carriers during the conveying process through the adjusting mechanism, so that the manifold carriers are conveyed to the manifold feeding mechanism one by one.

[0030] The present application also discloses a welding device, including a feeding device, a current collector tray assembly device, a welding device, a battery cell feeding device, and the above-mentioned current collector tray alignment device;

[0031] The current collector tray loading mechanism of the current collector tray alignment device is used to convey the current collector tray carrier to the feeding device;

[0032] The battery cell feeding device is used to convey the battery cells to the feeding device;

[0033] The feeding device is used to convey the received battery cells and current collector trays;

[0034] The current collector tray assembly device is used to assemble the battery cells on the feeding device with the current collector trays;

[0035] The welding device is used to weld the current collector trays assembled on the battery cells.

[0036] Further, the current collector tray assembly device includes a fixing frame, an adsorption mechanism, a carrier unloading mechanism, and an assembly mechanism;

[0037] A battery cell holder for accommodating the battery cell carrier and a current collector tray holder for accommodating the current collector tray carrier are installed on the fixing frame;

[0038] The adsorption mechanism is installed on the fixing frame and is used to adsorb the current collector trays on the current collector tray holder;

[0039] The carrier unloading mechanism is used to remove the current collector tray carrier that has completed adsorption from the feeding device;

[0040] The assembly mechanism is installed on the fixing frame and is used to assemble the current collector trays on the adsorption mechanism to the battery cells on the battery cell holder.

[0041] Further, the adsorption mechanism includes an adsorption driving mechanism and an adsorption seat;

[0042] The adsorption driving mechanism is connected to the adsorption seat and is used to drive the adsorption seat to move so that the adsorption seat adsorbs the current collector trays on the current collector tray holder;

[0043] An avoidance through hole for avoiding the area to be welded on the current collector tray is provided on the adsorption seat.

[0044] Further, the adsorption mechanism further includes a dust removal seat;

[0045] A welding through cavity penetrating through itself is provided on the adsorption seat;

[0046] An adsorption frame is provided at the bottom of the welding through cavity;

[0047] The avoidance through hole is provided on the adsorption frame;

[0048] The dust removal seat is installed on the welding through cavity and is provided with a dust removal through cavity communicating with the welding through cavity.

[0049] Further, the welding through cavity is conical, and an annular protective gas vent groove is formed on the cavity wall;

[0050] The dust removal seat is provided with a fitting portion that fits the welding through cavity;

[0051] An annular gap communicating with the protective gas vent groove and the avoidance through hole is formed between the fitting portion and the welding through cavity.

[0052] Further, the adsorption driving mechanism includes an adsorption sliding seat and an adsorption driver;

[0053] The adsorption sliding seat is slidably installed on the fixed frame and is located above the current collecting plate clamp seat;

[0054] The adsorption driver is connected to the adsorption sliding seat through a first elastic member and is used to drive the adsorption sliding seat to move;

[0055] The adsorption seat is installed on the adsorption sliding seat.

[0056] Further, the assembly mechanism includes an assembly sliding seat and an assembly driver;

[0057] The assembly sliding seat is slidably installed on the fixed frame and is located below the current collecting plate clamp seat;

[0058] The assembly driver is connected to the assembly sliding seat through a second elastic member and is used to drive the assembly sliding seat to move;

[0059] The battery cell clamp seat is installed on the assembly sliding seat.

[0060] Further, the assembly mechanism further includes a battery cell clamp;

[0061] The battery cell clamp is installed on the assembly sliding seat and is used to clamp the battery cell on the battery cell clamp seat.

[0062] As can be seen from the above technical solutions, for the flow collecting tray deviation rectification device designed in this application, before using the flow collecting tray feeding mechanism to feed and convey the flow collecting tray, the second positioning structure on the deviation rectification member is first cooperated with the first positioning structure on the flow collecting tray carrier, so that the flow collecting tray carrier is in a set posture before being conveyed to the flow collecting tray feeding mechanism. Furthermore, it can enable the flow collecting tray on the flow collecting tray carrier to enter the flow collecting tray feeding mechanism in a set posture. During the conveying process of the flow collecting tray carrier, the adjusting mechanism is also used to adjust the distance between adjacent flow collecting tray carriers to ensure that the flow collecting tray carriers are fed into the flow collecting tray feeding mechanism one by one. Through the above design, the deviation rectification of the flow collecting tray is realized in a physical deviation rectification manner, enabling the feeding of the flow collecting tray to be completed in a set posture. The structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0064] Figure 1 Structural schematic diagram of the flow collecting tray deviation rectification device provided in the present application;

[0065] Figure 2 Cross-sectional view of the flow collecting tray carrier of the flow collecting tray deviation rectification device provided in the present application;

[0066] Figure 3 Flow chart of the flow collecting tray deviation rectification method provided in the present application;

[0067] Figure 4 Structural schematic diagram of the welding equipment provided in the present application;

[0068] Figure 5 First three-dimensional view of the flow collecting tray assembly device of the welding equipment provided in the present application without a carrier unloading mechanism;

[0069] Figure 6 Second three-dimensional view of the flow collecting tray assembly device of the welding equipment provided in the present application without a carrier unloading mechanism;

[0070] Figure 7 Cross-sectional view of the flow collecting tray assembly device of the welding equipment provided in the present application without a carrier unloading mechanism;

[0071] Figure 8 First three-dimensional view of the adsorption seat with a dust removal seat of the welding equipment provided in the present application;

[0072] Figure 9The second three-dimensional view of the adsorption seat with a dust removal seat for the welding equipment provided in this application;

[0073] Figure 10 The sectional view of the adsorption seat with a dust removal seat for the welding equipment provided in this application;

[0074] In the figure: 100, the manifold feeding mechanism; 200, the manifold alignment mechanism; 201, the alignment part; 202, the adjustment mechanism; 203, the alignment feeding mechanism; 300, the manifold carrier; 400, the manifold alignment device; 500, the manifold assembly device; 600, the feeding device; 700, the welding device; 800, the battery core feeding device; 11, the feeding turntable; 12, the feeding clamping position; 13, the conveying screw; 14, the screw driver; 15, the first positioning structure; 21, the carrier discharging mechanism; 22, the fixing frame; 23, the manifold clamping seat; 24, the battery core clamping seat; 3, the adsorption mechanism; 31, the adsorption seat; 311, the avoidance through hole; 312, the adsorption frame; 313, the adsorption hole; 314, the protective gas ventilation groove; 32, the adsorption driving mechanism; 321, the adsorption sliding seat; 322, the adsorption driver; 323, the first elastic part; 33, the dust removal seat; 331, the negative pressure pipe; 332, the fitting part; 333, the annular gap; 4, the assembly mechanism; 41, the assembly sliding seat; 42, the assembly driver; 421, the second guiding roller; 43, the second elastic part; 5, the battery core fixture; 51, the fixture driver; 52, the clamping jaw; 61, the laser generator; 62, the Z-axis moving component; 63, the X-axis moving component; 64, the Y-axis moving component. Detailed implementation manners

[0075] Next, the technical solutions of the embodiments of this application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of the embodiments of this application.

[0076] In the description of the embodiments of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of this application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0077] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection; 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 the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0078] The embodiments of the present application disclose a current collector disk alignment device, an alignment method, and a welding device.

[0079] Please refer to Figure 1 , an embodiment of the current collector disk alignment device provided in the embodiments of the present application includes:

[0080] A current collector disk carrier 300, a current collector disk alignment mechanism 200, and a current collector disk loading mechanism 100.

[0081] A first positioning structure 15 is provided on the current collector disk carrier 300.

[0082] The current collector disk alignment mechanism 200 is used to convey the current collector disk carrier 300 to the current collector disk loading mechanism 100, and includes an alignment feeding mechanism 203, an alignment member 201, and an adjustment mechanism 202. The alignment feeding mechanism 203 and the current collector disk loading mechanism 100 are arranged in sequence. The alignment feeding mechanism 203 is used to convey the current collector disk carrier 300, and the current collector disk loading mechanism 100 is used to realize the loading of the current collector disk carrier 300.

[0083] A second positioning structure (not shown in the figure) is provided on the alignment member 201. The second positioning structure can cooperate with the first positioning structure 15 to limit the rotational freedom of the current collector disk carrier 300 located on the feeding path of the current collector disk alignment mechanism 200. By limiting the rotational freedom of the current collector disk carrier 300, the current collector disk carrier 300 can be conveyed in a set posture, that is, the current collector disk on the current collector disk carrier 300 can be in the required posture.

[0084] The adjustment mechanism 202 is used to adjust the distance between adjacent current collector disk carriers 300 along the feeding path of the current collector disk alignment mechanism 200.

[0085] In the above design, the deviation rectifying and feeding mechanism 203 can specifically be used to convey the current collector tray carrier 300 to the current collector tray feeding mechanism 100. Then the feeding path of the deviation rectifying and feeding mechanism 203 is also the feeding path of the current collector tray deviation rectifying mechanism 200. Taking this as an example, the adjusting mechanism 202 can only have an adjusting function, or it can have both an adjusting function and a conveying function. In the latter case, it means that while adjusting the spacing between the current collector tray carriers 300, it conveys the current collector tray carrier 300 to the current collector tray feeding mechanism 100 together with the deviation rectifying and feeding mechanism 203.

[0086] Taking the adjusting mechanism 202 having both an adjusting function and a conveying function as an example, the deviation rectifying and feeding mechanism 203 can also be used to convey the current collector tray carrier 300 to the starting end of the adjusting mechanism 202, and then the adjusting mechanism 202 conveys the current collector tray carrier 300 to the current collector tray feeding mechanism 100. At this time, the feeding paths of the deviation rectifying and feeding mechanism 203 and the adjusting mechanism 202 together constitute the feeding path of the current collector tray deviation rectifying mechanism 200.

[0087] For the current collector tray deviation rectifying device designed in this application, before using the current collector tray feeding mechanism 100 to feed and convey the current collector tray, the second positioning structure on the deviation rectifying part 201 is first used to cooperate with the first positioning structure 15 on the current collector tray carrier 300, so that the current collector tray carrier 300 is in a set posture before being conveyed to the current collector tray feeding mechanism 100. Furthermore, it can enable the current collector tray on the current collector tray carrier 300 to enter the current collector tray feeding mechanism 100 in a set posture. During the conveyance of the current collector tray carrier 300, the adjusting mechanism 202 is also used to adjust the spacing between adjacent current collector tray carriers 300 to ensure that the current collector tray carriers 300 are fed into the current collector tray feeding mechanism 100 one by one. Through the above design, the physical deviation rectifying method is used to rectify the current collector tray, enabling the feeding of the current collector tray to be completed in a set posture, with a simple structure and low cost.

[0088] The above is the first embodiment of the current collector tray deviation rectifying device provided by this application. The following is the second embodiment of the current collector tray deviation rectifying device provided by this application. For details, please refer to Figure 1 to Figure 2 .

[0089] Based on the solution of the above first embodiment:

[0090] As Figure 1 shown, further, the deviation rectifying and feeding mechanism 203 is preferably designed as a linear feeding mechanism, that is, it can be a linear conveyor belt. Taking this as an example, the deviation rectifying part 201 can be arranged on one side of the deviation rectifying and feeding mechanism 203 along the feeding path of the deviation rectifying and feeding mechanism 203, and the adjusting mechanism 202 is arranged on the other side of the deviation rectifying and feeding mechanism 203 along the feeding path of the deviation rectifying and feeding mechanism 203.

[0091] AsFigure 2 As shown, further, the first positioning structure 15 can be designed as a groove structure, which is opened on the outer peripheral surface of the current collector tray carrier 300. There can be two such grooves and they are symmetrically arranged, and specific arrangements are not limited.

[0092] Taking the first positioning structure 15 as a groove structure as an example, the second positioning structure can be a strip structure, distributed along the conveying path of the deviation rectifying feeding mechanism 203, and can be slidably matched with the first positioning structure 15, so that the current collector tray carrier 300 during the conveying process can be in a set posture through the cooperation between the second positioning structure and the first positioning structure 15.

[0093] Further, in order to prevent the current collector tray carrier 300 from rotating and causing a change in posture during the feeding process, a third positioning structure (not shown in the figure) is provided on the current collector feeding mechanism 100, and the third positioning structure can also be matched with the first positioning structure 15 to limit the rotational freedom of the current collector tray carrier 300 located on the current collector feeding mechanism 100.

[0094] As Figure 1 shown, further, the current collector feeding mechanism 100 is preferably designed as a turntable conveying structure, which is more compact. Specifically, it can include a feeding driver (not shown in the figure) and a feeding turntable 11.

[0095] The feeding driver is connected to the feeding turntable 11 and is used to drive the feeding turntable 11 to rotate. A plurality of feeding positions 12 for the current collector tray carrier 300 to be inserted are circumferentially arranged on the feeding turntable 11.

[0096] Correspondingly, the third positioning structure can be designed as a disc structure. The third positioning structure is coaxially arranged with the feeding turntable 11, and its outer peripheral edge can be movably inserted into the first positioning structure 15 to limit the rotational freedom of the current collector tray carrier 300. In this application, the feeding turntable 11 can be designed as two as Figure 1 shown, and they are arranged at an upper and lower interval, and the third positioning structure can be arranged between the two feeding turntables 11. The third positioning structure can be fixedly arranged or rotatably matched with the feeding turntable 11 synchronously, and specific arrangements are not limited.

[0097] As Figure 1 shown, further, taking the adjustment mechanism 202 as an example of having an adjustment function and a conveying function, specifically, it can include a screw driver 14 and a conveying screw 13.

[0098] The screw driver 14 is also a rotary motor module, and its rotating output shaft is connected to the conveying screw 13 and is used to drive the conveying screw 13 to rotate.

[0099] When the current collector tray carrier 300 is being conveyed, it is conveyed in close proximity. Therefore, the thickness of the thread on the conveying screw 13 is designed to gradually increase from the input end to the output end of the screw itself. It can be understood that the overall change in the thread thickness increases from the input end to the output end of the conveying screw 13, and the thickness change of any part of the thread also increases from the input end to the output end of the conveying screw 13 (taking Figure 1 a certain part of the thread in [the example] as an example, with one side a of this part of the thread facing the input end of the conveying screw 13 and the other side b facing the output end of the conveying screw 13, then the thickness change of this part of the thread is from side a to side b). This can increase the spacing between adjacent current collector tray carriers 300 during the conveying process, and in the last lead, make the spacing between two current collector tray carriers 300 equal to the arc length spacing between two adjacent loading positions 12 on the loading turntable 11, so that the current collector tray carrier 300 can smoothly enter the loading position 12.

[0100] As Figure 3 shown, the present application also discloses a method for correcting the alignment of the current collector tray, which is applied to the current collector tray alignment device 400 in the above-mentioned Embodiment 1 or Embodiment 2, and includes the steps of:

[0101] S1, conveying the current collector tray carrier loaded with the current collector tray through the alignment feeding mechanism.

[0102] S2, restricting the rotational freedom of the current collector tray carrier by the cooperation of the second positioning structure on the alignment member and the first positioning structure on the current collector tray carrier during the conveying process.

[0103] S3, adjusting the spacing between adjacent current collector tray carriers during the conveying process through the adjusting mechanism, so that the current collector tray carriers are conveyed to the current collector tray loading mechanism one by one.

[0104] In the present application, when the second positioning structure cooperates with the first positioning structure 15, the current collector tray carrier 300 will be restricted to a set posture, and thus the current collector tray on the current collector tray carrier 300 will be in a set posture; for the set posture of the current collector tray, it can be determined according to the actual welding posture required, and the welding posture can be determined according to the information of the area to be welded on the current collector tray, and no specific limitation is made.

[0105] Taking the example that there are ribs on the current collector tray, then a certain orientation position of the ribs can be used as the required posture. For example, when it is set that the current collector tray is conveyed to the loading position 12, the straight line connecting the center of the loading position 12 and the center of the loading turntable 11 forms a set angle with the straight line where the ribs are located, so that the current collector tray can enter the loading turntable 11 in a set posture and complete the loading in a set posture.

[0106] As Figure 4As shown in the figure, the present application also discloses a welding device, which includes a feeding device 600, a current collector assembly device 500, a welding device 700, a battery cell feeding device 800, and the current collector alignment device 400 of the first or second embodiment above.

[0107] The current collector loading mechanism 100 of the current collector alignment device 400 is used to convey the current collector carrier 300 to the feeding device 600.

[0108] The battery cell feeding device 800 is used to convey the battery cells to the feeding device 600. The battery cell feeding device 800 can also be a turntable conveying device like the current collector loading mechanism 100, and convey the battery cell carrier loaded with battery cells to the feeding device 600.

[0109] The feeding device 600 is used to convey the received battery cells and current collectors. The feeding device 600 can also be a turntable feeder, which is more compact in structure compared to a linear conveyor.

[0110] The current collector assembly device 500 is used to assemble the battery cells on the feeding device 600 with the current collectors.

[0111] The welding device 700 is used to weld the current collectors assembled on the battery cells. The welding device 700 in the present application can be one or more. Taking one as an example, that is, at the welding position, one welding device 700 welds multiple areas to be welded on the current collectors of the passing battery cells; taking multiple as an example, they can be circumferentially distributed on the outer periphery of the feeding device 600, and each welding device 700 respectively corresponds to weld one area to be welded on the current collector. It can be understood that when the battery cell enters the welding range of the welding device 700, the laser can sequentially weld the areas to be welded on the current collector. In the present application, a total of 3 welding devices 700 are provided, and the number is the same as the number of areas to be welded on the current collector. Of course, when the laser process conditions permit, one welding device 700 can also weld 3 areas to be welded. The specific number of the welding devices 700 can be adaptively adjusted according to the actual process conditions. For welding, it can be directly welded when the battery cell passes through the welding station to achieve flying welding without stopping the battery cell, which can well improve the welding efficiency. Of course, according to actual needs, it can also be that when the battery cell reaches the welding station, it stays for a certain time to achieve welding, that is, to achieve fixed welding.

[0112] The welding device 700 is designed to include a laser generator 61, an X-axis moving component 63, a Y-axis moving component 64, and a Z-axis moving component 62. The X-axis moving component 63, the Y-axis moving component 64, and the Z-axis moving component 62 can be used by operators to adjust the position of the laser generator 61 to better achieve the welding operation.

[0113] Such as Figure 4 to Figure 6As shown, further, in the design of the current collector plate assembly device 500, it includes a fixing frame 22, an adsorption mechanism 3, a carrier unloading mechanism 21, and an assembly mechanism 4.

[0114] On the fixing frame 22, there are installed a battery cell holder 24 for accommodating the battery cell carrier and a current collector plate holder 23 for accommodating the current collector plate carrier 300. The current collector plate holder 23 can be in a Y-shaped structure, fixed on the fixing frame 22, and is provided with a bayonet for clamping the current collector plate carrier 300, and specific limitations are not made. The battery cell holder 24 can be set according to the existing fixed structure of the battery cell carrier, and no limitations are made either.

[0115] The adsorption mechanism 3 is installed on the fixing frame 22 and is used for adsorbing the current collector plate on the current collector plate holder 23.

[0116] The carrier unloading mechanism 21 is used to remove the adsorbed current collector plate carrier 300 from the feeding device 600 to avoid the current collector plate carrier 300 affecting the subsequent assembly between the battery cell and the current collector plate. The carrier unloading mechanism 21 can be designed with reference to the current collector plate loading mechanism 100 as long as it can realize the transfer of the current collector plate carrier 300.

[0117] The assembly mechanism 4 is installed on the fixing frame 22 and is used to assemble the current collector plate on the adsorption mechanism 3 to the battery cell on the battery cell holder 24.

[0118] As Figure 7 and Figure 8 shown, further, in the design of the adsorption mechanism 3, it includes an adsorption driving mechanism 32 and an adsorption seat 31.

[0119] The adsorption driving mechanism 32 is connected to the adsorption seat 31 and is used to drive the adsorption seat 31 to move so that the adsorption seat 31 adsorbs the current collector plate on the current collector plate holder 23. The adsorption seat 31 is provided with an avoidance through hole 311 for avoiding the area to be welded on the current collector plate. When the current collector plate is corrected by the aforementioned current collector plate alignment device 400, it can be conveyed to the current collector plate holder 23 in a set posture. At this time, the area to be welded on the current collector plate on the current collector plate carrier 300 in this posture just corresponds to the avoidance through hole 311 on the adsorption seat 31.

[0120] As Figure 8 to Figure 10 shown, further, the adsorption mechanism 3 further includes a dust removal seat 33, which can remove dust during the welding process to ensure the welding effect.

[0121] Regarding the design of the adsorption seat 31, it is provided with a welding through cavity penetrating itself. At the bottom of the welding through cavity, there is an adsorption frame 312. At the bottom of the adsorption frame 312, there are adsorption holes 313. Taking the example that the current collector plate is provided with ribs, then the adsorption frame 312 can be set according to the shape of the ribs and is provided with rib grooves for the ribs to be inserted into. The adsorption holes 313 can be arranged in the rib grooves, and specific limitations are not made.

[0122] The adsorption frame 312 is provided with an avoidance through hole 311. The dust removal seat 33 is installed on the welding through cavity and is provided with a dust removal through cavity communicating with the welding through cavity. A negative pressure pipe 331 connecting the dust removal through cavity is provided on the dust removal seat 33 for connecting a vacuum device to achieve dust extraction.

[0123] Such as Figure 9 and Figure 10 As shown, further, the welding through cavity is preferably designed to be conical, and an annular protective gas ventilation groove 314 is formed on the cavity wall. The dust removal seat 33 is provided with a fitting part 332 that fits the cavity wall of the welding through cavity and is also conical. An annular gap 333 communicating the protective gas ventilation groove 314 and the avoidance through hole 311 is formed between the fitting part 332 and the welding through cavity. This conical structure design can better fill the protective gas around the avoidance through hole 311 to ensure the welding effect. Compared with the traditional hose blowing method, the protective effect of annular inclined gas outlet is better and the welding effect is better.

[0124] In addition, a first chamfer surface can be provided at the bottom edge of the welding through cavity in this application, and a second chamfer surface adapted to the first chamfer surface is provided at the top of the current collector tray carrier 300. When the current collector tray carrier 300 is inserted into the bottom of the welding through cavity, automatic centering can be achieved between the first chamfer surface and the second chamfer surface.

[0125] Such as Figure 5 and Figure 6 As shown, further, in terms of the design of the adsorption driving mechanism 32, it includes an adsorption sliding seat 321 and an adsorption driver 322.

[0126] The adsorption sliding seat 321 is slidably installed on the fixing frame 22 and is located above the current collector tray holder 23. The adsorption sliding seat 321 can be slidably matched with the fixing frame 22 through a rail matching method, and specific limitations are not made.

[0127] The adsorption driver 322 is connected to the adsorption sliding seat 321 through the first elastic member 323 and is used to drive the adsorption sliding seat 321 to move. The adsorption seat 31 is installed on the adsorption sliding seat 321. In terms of the design of the adsorption driver 322, it can be slidably installed on the fixed frame 22 through a slide rail matching structure, and is provided with a first guiding roller. A first track plate (not shown in the figure) is provided on the corresponding feeding device 600. The first track plate is provided with a first track groove. When the feeding device 600 drives the fixed frame 22 to move, the first guiding roller can move along the first track groove by itself, so as to realize the lifting movement of the adsorption driver 322, and further drive the adsorption seat 31 to move closer to or away from the current collector tray holder 23. In addition, the first elastic member 323 can be a spring. By using the first elastic member 323 to realize the connection between the adsorption driver 322 and the adsorption seat 31, elastic connection can be achieved, thereby avoiding damage caused by excessive extrusion between the adsorption seat 31 and the current collector tray carrier 300. Of course, in addition to the above-mentioned cooperation method of the track groove and the guiding roller to realize the lifting control, a cylinder, an electric push rod and other drivers can also be used as the direct driving source to drive the adsorption seat 31 to realize the lifting movement.

[0128] As Figure 5 and Figure 6 shown, further, in terms of the design of the assembly mechanism 4, it includes an assembly sliding seat 41 and an assembly driver 42.

[0129] The assembly sliding seat 41 is slidably installed on the fixed frame 22 and is located below the current collector tray holder 23; the assembly sliding seat 41 can also be slidably matched with the fixed frame 22 through a slide rail matching structure, and no specific limitation is made.

[0130] The assembly driver 42 is connected to the assembly sliding seat 41 through the second elastic member 43 and is used to drive the assembly sliding seat 41 to move. The battery cell holder 24 is installed on the assembly sliding seat 41. In terms of the design of the assembly driver 42, it can also be slidably matched with the fixed frame 22 through a slide rail matching structure, and is provided with a second guiding roller 421. A second track plate (not shown in the figure) is provided on the corresponding feeding device 600. The second track plate is provided with a second track groove. When the feeding device 600 drives the fixed frame 22 to move, the second guiding roller 421 can move along the second track groove by itself, so as to realize the lifting movement of the assembly driver 42, and further drive the assembly sliding seat 41 to move closer to or away from the adsorption seat 31. Of course, in addition to the above-mentioned cooperation method of the track groove and the guiding roller to realize the lifting control, a cylinder, an electric push rod, etc. can also be used as the direct driving source to realize the lifting movement of the assembly sliding seat 41.

[0131] Further, the assembly mechanism 4 further includes a battery cell fixture 5. The battery cell fixture 5 is installed on the assembly sliding seat 41 and located above the battery cell clamping seat 24, and is used to clamp the battery cell on the battery cell clamping seat 24. The battery cell fixture 5 includes a fixture driver 51 and clamping jaws 52. The fixture driver 51 can be a finger cylinder, which is connected to the clamping jaws 52 to drive the clamping jaws 52 to open and close, thereby clamping and fixing the battery cell to prevent the battery cell from rotating during assembly. At the same time, after the assembly and welding of the battery cell are completed, the battery cell can be clamped and the welded battery cell can be removed from the adsorption seat 31.

[0132] In addition, the welding equipment of the present application further includes a discharging turntable, a weld detection station, and an NG discharging turntable to detect the welding effect. If the detection result is YES, it will flow to the next process; if the detection result is NG, it will be discharged via the NG discharging turntable.

[0133] The welding equipment designed in the present application is compatible with fixed welding and flying welding. Among them, flying welding can realize the welding of the battery cell and the current collector during the movement of the battery cell, effectively improving the welding efficiency of the current collector. At the same time, there is no need to correct the deviation through a CCD, effectively reducing the cost.

[0134] The above has introduced in detail the current collector deviation correction device, deviation correction method, and welding equipment provided by the present application. For those of ordinary skill in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. The current collector plate alignment device is characterized in that It includes a current collector tray carrier (300), a current collector tray rectifying mechanism (200), and a current collector tray feeding mechanism (100); A first positioning structure (15) is provided on the current collector tray carrier (300); The current collector tray rectifying mechanism (200) is used to convey the current collector tray carrier (300) to the current collector tray feeding mechanism (100), and includes a rectifying feeding mechanism (203), a rectifying member (201), and an adjusting mechanism (202); The rectifying feeding mechanism (203) and the current collector tray feeding mechanism (100) are arranged in sequence, and the rectifying feeding mechanism (203) is used to convey the current collector tray carrier (300); A second positioning structure is provided on the rectifying member (201); The second positioning structure can cooperate with the first positioning structure (15) to limit the rotational freedom of the current collector tray carrier (300) located on the feeding path of the current collector tray rectifying mechanism (200); The adjusting mechanism (202) is used to adjust the distance between adjacent current collector tray carriers (300) along the feeding path of the current collector tray rectifying mechanism (200); The adjusting mechanism (202) includes a screw driver (14) and a conveying screw (13); The screw driver (14) is connected to the conveying screw (13) and is used to drive the conveying screw (13) to rotate; The thickness of the thread on the conveying screw (13) gradually increases from the input end to the output end of itself; The first positioning structure (15) is a groove structure; The second positioning structure is a strip structure, which is distributed along the conveying path of the rectifying feeding mechanism (203) and can be slidably matched with the first positioning structure (15).

2. The centering device for the current collector tray according to claim 1, characterized in that The rectifying feeding mechanism (203) is a linear feeding mechanism; The rectifying member (201) is arranged on one side of the rectifying feeding mechanism (203) along the conveying path of the rectifying feeding mechanism (203); The adjusting mechanism (202) is arranged on the other side of the rectifying feeding mechanism (203) along the conveying path of the rectifying feeding mechanism (203).

3. The centering device for the current collecting tray according to claim 1, characterized in that, A third positioning structure is provided on the current collector tray feeding mechanism (100); The third positioning structure can cooperate with the first positioning structure (15) to limit the rotational freedom of the current collector tray carrier (300) located on the current collector tray feeding mechanism (100).

4. The centering device for the current collector tray according to claim 3, characterized in that The current collector tray feeding mechanism (100) includes a feeding driver and a feeding turntable (11); The feeding driver is connected to the feeding turntable (11) and is used to drive the feeding turntable (11) to rotate; A plurality of feeding positions (12) for the current collector tray carrier (300) to be inserted are circumferentially arranged on the feeding turntable (11); The third positioning structure is a disc structure; The third positioning structure is coaxially arranged with the feeding turntable (11), and the outer peripheral edge can be movably inserted into the first positioning structure (15).

5. Method for correcting the alignment of the current collector tray, characterized in that, Applied to the current collector tray rectifying device according to any one of claims 1 to 4, it includes the steps: Convey the current collector tray carrier (300) loaded with a current collector tray through the rectifying feeding mechanism (203); The rotational freedom of the current collector tray carrier (300) during transportation is restricted by the cooperation between the second positioning structure on the alignment member (201) and the first positioning structure (15) on the current collector tray carrier (300) during transportation; The distance between adjacent current collector tray carriers (300) during transportation is adjusted by the adjusting mechanism (202) so that the current collector tray carriers (300) are transported to the current collector tray loading mechanism (100) one by one.

6. A welding device, characterized in that, It includes a feeding device (600), a current collector tray assembling device (500), a welding device (700), a battery cell feeding device (800), and the current collector tray alignment device (400) according to any one of claims 1 to 4; The current collector tray loading mechanism (100) of the current collector tray alignment device (400) is used to transport the current collector tray carrier (300) onto the feeding device (600); The battery cell feeding device (800) is used to transport battery cells onto the feeding device (600); The feeding device (600) is used to transport the received battery cells and current collector trays; The current collector tray assembling device (500) is used to assemble the battery cells on the feeding device (600) with the current collector trays together; The welding device (700) is used to weld the current collector trays assembled on the battery cells; The current collector tray assembling device (500) includes a fixing frame (22), an adsorption mechanism (3), a carrier unloading mechanism (21), and an assembling mechanism (4); A battery cell holder (24) for accommodating the battery cell carrier and a current collector tray holder (23) for accommodating the current collector tray carrier (300) are installed on the fixing frame (22); The adsorption mechanism (3) is installed on the fixing frame (22) and is used to adsorb the current collector tray on the current collector tray holder (23); The carrier unloading mechanism (21) is used to remove the current collector tray carrier (300) that has completed adsorption from the feeding device (600); The assembling mechanism (4) is installed on the fixing frame (22) and is used to assemble the current collector tray on the adsorption mechanism (3) to the battery cell on the battery cell holder (24).

7. The welding device according to claim 6, wherein, The adsorption mechanism (3) includes an adsorption driving mechanism (32) and an adsorption seat (31); The adsorption driving mechanism (32) is connected to the adsorption seat (31) and is used to drive the adsorption seat (31) to move so that the adsorption seat (31) adsorbs the current collector tray on the current collector tray holder (23); An avoidance through hole (311) for avoiding the area to be welded on the current collector tray is provided on the adsorption seat (31).

8. The welding device according to claim 7, wherein The adsorption mechanism (3) further includes a dust removal seat (33); A welding through cavity penetrating through itself is provided on the adsorption seat (31); An adsorption frame (312) is provided at the bottom of the welding through cavity; The avoidance through hole (311) is provided on the adsorption frame (312); The dust removal seat (33) is installed on the welding through cavity and is provided with a dust removal through cavity communicating with the welding through cavity.

9. The welding device according to claim 8, characterized in that, The welding through cavity is conical, and an annular protective gas ventilation groove (314) is formed on the cavity wall; The dust removal seat (33) is provided with a fitting portion (332) that fits the welding through cavity; An annular gap (333) communicating with the protective gas vent groove (314) and the avoidance through-hole (311) is formed between the fitting portion (332) and the welding through cavity.

10. The welding equipment according to claim 8, characterized in that, The adsorption driving mechanism (32) includes an adsorption sliding seat (321) and an adsorption driver (322); The adsorption sliding seat (321) is slidably mounted on the fixing frame (22) and is located above the current collector tray holder (23); The adsorption driver (322) is connected to the adsorption sliding seat (321) through a first elastic member (323) and is used to drive the adsorption sliding seat (321) to move; The adsorption seat (31) is mounted on the adsorption sliding seat (321).

11. The welding device according to claim 6, characterized in that, The assembling mechanism (4) includes an assembling sliding seat (41) and an assembling driver (42); The assembling sliding seat (41) is slidably mounted on the fixing frame (22) and is located below the current collector tray holder (23); The assembling driver (42) is connected to the assembling sliding seat (41) through a second elastic member (43) and is used to drive the assembling sliding seat (41) to move; The battery cell holder (24) is mounted on the assembling sliding seat (41).

12. The welding device according to claim 11, wherein The assembling mechanism (4) further includes a battery cell clamp (5); The battery cell clamp (5) is mounted on the assembling sliding seat (41) and is used to clamp the battery cell on the battery cell holder (24).

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