Battery top cover welding system and battery top cover welding method

Abstract

A battery top cover welding system and a battery top cover welding method. The battery top cover welding system comprises conveying modules and processing modules. Each conveying module comprises a battery fixture and a power mechanism, wherein the battery fixture is used for holding both a casing (012) and top cover (011) of a battery (01) to be welded, thus maintaining the relative positions of the top cover (011) and the casing (012); and the battery fixture is arranged on an output end of the power mechanism, enabling same to be driven by the output end of the power mechanism to move and convey said battery (01). Each processing module comprises a cleaning processing sub-module, a press-fitting processing sub-module (4) and a spot-welding processing sub-module (6), the cleaning processing sub-module, the press-fitting processing sub-module (4) and the spot-welding processing sub-module (6) all being arranged on the output end of a corresponding conveying module. Each processing module comprises a clamping tool, the clamping tool being used for holding both the casing (012) and the top cover (011), thus maintaining the relative positions of the top cover (011) and the casing (012).

Description

Battery top cover welding system and battery top cover welding method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application number 202410096098.9, application date January 24, 2024, and invention name “A battery top cover welding system and battery top cover welding method”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into the present disclosure as a reference. Technical Field

[0003] The present disclosure relates to the field of battery technology, and in particular to a battery top cover welding system and a battery top cover welding method. Background Art

[0004] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being increasingly used in energy storage fields.

[0005] During the battery production process, the batteries need to be transported to multiple processing devices in sequence for processing. In the related art, the battery shell and top cover are often transported to the processing devices in sequence for processing, which has low production efficiency.

[0006] Summary of the Invention

[0007] The present disclosure provides a battery top cover welding system and a battery top cover welding method, which can improve the production efficiency of batteries.

[0008] In a first aspect, the present disclosure provides a battery top cover welding system, which includes a conveying module and a processing module. The conveying module includes a battery clamp and a power mechanism; the battery clamp is used to clamp both the shell and the top cover of the battery to be welded to maintain the relative positions of the top cover and the shell; the battery clamp is arranged at the output end of the power mechanism so that it can be driven by the output end of the power mechanism to move and convey the battery to be welded; the processing module includes a cleaning processing submodule, a pressing processing submodule, and a spot welding processing submodule, each of which is arranged at the output end of the corresponding conveying module to sequentially process the same battery to be welded conveyed by the battery clamp; the processing module includes a clamping tool, which is used to clamp both the shell and the top cover to maintain the relative positions of the top cover and the shell, so that the processing module can process the battery to be welded.

[0009] By setting up a battery fixture, the battery fixture clamps both the shell and top cover of the battery to be welded to maintain the relative position of the top cover and the shell. The shell and top cover of the battery to be welded can be synchronously transported to the processing module for processing, which is conducive to improving production efficiency. By setting up a clamping fixture, after the conveying module transports the battery cell to the processing module, the battery cell is transferred from the battery cell fixture to the clamping fixture, which in turn clamps the battery cell, allowing the processing module to process the battery cell. In this way, the battery cell fixture is vacated and the battery cell fixture can return to clamp another battery cell and transport it to the processing module, which is conducive to improving production efficiency.

[0010] In some implementations of the present disclosure, the battery clamp includes two conveying clamping arms arranged opposite to each other along a first direction, and the two conveying clamping arms together form a clamping space to clamp the outer surface of the battery to be welded; when the battery clamp clamps the battery to be welded, the top cover is opposite to the opening of the shell, the first direction is perpendicular to the axial direction of the opening, and the two conveying clamping arms are both arranged across the top cover and the shell to clamp both the top cover and the shell along the first direction.

[0011] By having two conveying clamping arms clamp the outer surface of the battery to be welded along a first direction, such as the width direction or length direction of the battery to be welded, and both conveying clamping arms are arranged across the top cover and shell of the battery to be welded to maintain the relative position of the top cover and shell, the structure of the battery clamp is relatively simple, and the battery to be welded can be clamped with fewer clamping arms, and the clamping effect on the battery to be welded is relatively stable. Moreover, when the conveying module conveys the battery to be welded to the processing module, the openings of the top cover and the shell are in a relative state. The processing module does not need to make significant adjustments to the relative position of the top cover and the shell to control the top cover to be coupled to the opening, which is relatively convenient.

[0012] In some implementations of the present disclosure, when the battery fixture is in a position corresponding to the processing module, the battery fixture and the clamping fixture are staggered so that the battery fixture and the clamping fixture can jointly clamp the battery to be welded. By enabling the battery fixture and the corresponding clamping fixture to jointly clamp the battery to be welded, the relative position of the top cover and the housing will not change significantly during the process of transferring the battery to be welded from the battery fixture to the corresponding clamping fixture, which helps to improve the fit between the housing and the top cover.

[0013] In some implementations of the present disclosure, the battery top cover welding system includes a first conveying module, and a cleaning processing submodule is arranged at the output end of the first conveying module so as to be able to clean the welding wires of the batteries to be welded conveyed by the first conveying module; the first conveying module includes a first battery clamp, and the first battery clamp includes a first insertion piece. When the first battery clamp clamps the battery to be welded, the opening of the top cover and the shell has a first gap in the thickness direction of the top cover, and the first insertion piece extends into the first gap and cooperates with the first gap.

[0014] By setting the first insert, the first insert is inserted between the top cover and the shell, so that a certain distance can be maintained between the top cover and the shell, and the welding wires of the top cover and the shell can be better exposed to the outside, which is convenient for the cleaning processing submodule to clean the welding wires.

[0015] In some implementations of the present disclosure, the first battery clamp includes two oppositely arranged conveying clamping arms, which together form a clamping space to clamp the outer surface of the battery to be welded; the first extending piece is a protrusion formed on the surface of one of the two conveying clamping arms facing the other, and the first extending piece is fixed to the corresponding conveying clamping arm, and extends into the first gap along the direction of the protrusion relative to the corresponding conveying clamping arm.

[0016] By arranging the first insert on the conveying clamping arm and extending the first insert into the first interval along the direction of the corresponding conveying clamping arm protrusion, the first battery clamp structure is simpler and the processing and manufacturing is more convenient.

[0017] In some implementations of the present disclosure, the battery top cover welding system includes a first conveying module, and a cleaning processing submodule is arranged at the output end of the first conveying module so as to be able to clean the welding line of the battery to be welded conveyed by the first conveying module; the first conveying module includes a first battery clamp, and the first battery clamp includes two oppositely arranged conveying clamping arms, and the two conveying clamping arms together form a clamping space to clamp the outer surface of the battery to be welded; when the first battery clamp clamps the battery to be welded, the arrangement direction of the two conveying clamping arms of the first battery clamp is consistent with the length direction of the battery to be welded; the first conveying module also includes a first power mechanism, and the first power mechanism can drive the first battery clamp to move along the arrangement direction of the two conveying clamping arms, so that the long side cleaning module moves along the long side welding line of the battery to be welded relative to the battery to be welded, so as to clean the long side welding line.

[0018] By aligning the arrangement direction of the two conveying clamping arms with the length direction of the battery to be welded, that is, the two conveying clamping arms clamp the short side of the battery to be welded, and the two conveying clamping arms are located on opposite sides of the battery to be welded along the length direction of the battery to be welded, and the conveying clamping arms are not located on the side of the long side welding line away from the shell in the width direction of the battery to be welded, the long side welding line of the battery to be welded can be better exposed to the outside, and the long side welding line is not easily blocked by the first battery clamp in the width direction of the battery to be welded, so that the long side cleaning module can better clean the long side welding line. The first power mechanism drives the first battery clamp to move along the arrangement direction of the two conveying clamping arms, so that the long side cleaning module can move along the long side welding line of the battery to be welded relative to the battery to be welded, which is conducive to improving the cleaning effect.

[0019] In some implementations of the present disclosure, the first battery clamp also includes two relatively large-surface clamping arms, which together form a clamping space to clamp the outer surface of the battery to be welded; when the first battery clamp clamps the battery to be welded, the two large-surface clamping arms are both located on the side of the opening close to the inside of the shell in the axial direction of the opening of the shell, and the relative arrangement direction is consistent with the width direction of the battery to be welded.

[0020] When the first battery clamp is holding the battery to be welded, the two large-surface clamping arms are arranged relative to each other in the width direction of the battery to be welded, that is, the two large-surface clamping arms clamp the outer surface of the battery to be welded along the width direction of the battery to be welded, and along the width direction of the battery to be welded, the two large-surface clamping arms are respectively located on opposite sides of the battery to be welded, so that the battery to be welded is clamped between the two large-surface clamping arms, which is conducive to improving the stability of the first battery clamp in clamping the battery to be welded. When the first battery clamp is holding the battery to be welded, the two large-surface clamping arms are both located on the side of the shell opening close to the inside of the shell, and the large-surface clamping arms are not opposite the long side welding wire in the width direction of the battery to be welded. The large-surface clamping arms clamp the shell, which is not likely to block the long side welding wire of the battery to be welded, which is conducive to better cleaning of the long side welding wire.

[0021] In some implementations of the present disclosure, the cleaning processing submodule includes a cleaning clamping tool. When the cleaning clamping tool clamps the battery to be welded, the top cover is directly opposite to the opening of the shell. The cleaner of the cleaning processing submodule is movably connected to the cleaning clamping tool so that when the cleaning clamping tool clamps the battery to be welded, the cleaner of the cleaning processing submodule can move along the welding line of the battery to be welded to synchronously clean the top cover and the shell.

[0022] By ensuring that the top cover and the opening of the shell are facing each other when the cleaning clamping tool clamps the battery to be welded, the top cover and the shell can be cleaned synchronously during the process of the cleaner of the cleaning processing submodule moving along the welding line of the battery to be welded, which is beneficial to improving the cleaning efficiency.

[0023] In some implementations of the present disclosure, the cleaning clamping tool includes two cleaning clamping arms arranged opposite to each other along a second direction, and the two cleaning clamping arms together form a clamping space to clamp the outer surface of the battery to be welded; when the cleaning clamping tool clamps the battery to be welded, the second direction is perpendicular to the axial direction of the opening, and the two cleaning clamping arms are both arranged across the top cover and the shell to clamp both the top cover and the shell along the second direction.

[0024] By making two cleaning clamping arms clamp the outer surface of the battery to be welded along the width direction of the battery to be welded, and the two cleaning clamping arms are both arranged across the top cover and shell of the battery to be welded to maintain the relative position of the top cover and the shell, it is beneficial to make the structure of the battery clamp simpler, and the battery to be welded can be clamped by fewer clamping arms, and the clamping effect on the battery to be welded is more stable.

[0025] In some implementations of the present disclosure, the cleaning clamping tool includes a second insert. When the cleaning clamping tool clamps the battery to be welded, the top cover and the opening have a second gap in the thickness direction of the top cover, and the second insert extends into the second gap and cooperates with the second gap.

[0026] By setting a second insertion piece, the second insertion piece is inserted between the top cover and the shell, so that a certain distance can be maintained between the top cover and the shell, and the welding wires of the top cover and the shell can be better exposed to the outside, which is convenient for the cleaning processing submodule to clean the welding wires.

[0027] In some implementations of the present disclosure, the second protruding member is a protrusion formed on the surface of one of the two cleaning clamping arms facing the other. The second protruding member is fixed to the corresponding cleaning clamping arm and extends into the second gap along the direction relative to the protrusion of the corresponding cleaning clamping arm.

[0028] By arranging the second insertion piece on the cleaning clamping arm and extending the second insertion piece into the second interval along the direction of the corresponding protrusion of the cleaning clamping arm, the cleaning clamping tooling structure is simpler and the processing and manufacturing is more convenient.

[0029] In some implementations of the present disclosure, the cleaning processing submodule includes a short-side cleaning processing submodule; the short-side cleaning processing submodule includes a short-side cleaning clamping tool. When the short-side cleaning clamping tool clamps the battery to be welded, the arrangement direction of the two cleaning clamping arms of the short-side cleaning clamping tool is consistent with the width direction of the battery to be welded.

[0030] By clamping the outer surface of the battery to be welded along the width direction of the battery to be welded with two cleaning clamping arms, the two cleaning clamping arms will not block the short side welding lines of the top cover and the shell, thereby facilitating the cleaning of the short side cleaning module.

[0031] In some implementations of the present disclosure, the battery top cover welding system includes a second conveying module, and the short side cleaning processing submodule is arranged at the input end of the second conveying module, so that the second conveying module can convey the battery to be welded by the short side cleaning processing submodule; the two conveying clamping arms of the battery clamp of the second conveying module are arranged opposite to each other along the second direction, and the two conveying clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; the two cleaning clamping arms are used to clamp the third part of the battery to be welded, and the two conveying clamping arms of the second conveying module are used to clamp the fourth part of the battery to be welded, and the third part and the fourth part are arranged along the length direction of the battery to be welded, so that the cleaning clamping arms and the conveying clamping arms of the second conveying module can jointly clamp the outer surface of the battery to be welded.

[0032] By arranging the two conveying clamping arms of the battery clamp of the second conveyor module relative to each other along the second direction to jointly form a clamping space for clamping the outer surface of the battery to be welded, the two conveying clamping arms can clamp the outer surface of the battery to be welded along the width of the battery to be welded, providing a more stable clamping effect. By enabling the cleaning clamping arm and the conveying clamping arm of the second conveyor module to jointly clamp the outer surface of the battery to be welded, the conveying clamping arm of the second conveyor module can more accurately and firmly clamp the battery to be welded during the process of transferring the battery to be welded from the cleaning clamping arm to the conveying clamping arm of the second conveyor module, and the relative position of the top cover and the housing is less likely to change significantly. Furthermore, by arranging the third and fourth portions along the length of the battery to be welded, the cleaning clamping arm and the conveying clamping arm of the second conveyor module can both easily have a larger contact area with the battery to be welded when clamping the battery to be welded, which is beneficial for improving the stability of the clamping.

[0033] In some implementations of the present disclosure, the battery top cover welding system includes a second conveying module, and the pressing processing submodule is arranged at the output end of the second conveying module so as to be able to press-fit the batteries to be welded conveyed by the second conveying module; the clamping tool of the pressing processing submodule includes two first pressing clamping arms arranged relative to each other along a third direction, and the two first pressing clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; and two second pressing clamping arms arranged relative to each other along a fourth direction, and the two second pressing clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; when the clamping tool clamps the battery to be welded, the top cover and the opening of the shell are opposite, the third direction and the fourth direction are respectively consistent with the length direction and the width direction of the battery to be welded, and the two first pressing clamping arms and the two second pressing clamping arms are both arranged across the top cover and the shell of the battery to be welded to clamp the top cover and the shell along the third direction and the fourth direction respectively.

[0034] By having the first press-fitting clamping arm and the second press-fitting clamping arm clamp the outer surface of the battery to be welded along the length and width directions of the battery to be welded, respectively, and the two first press-fitting clamping arms and the two second press-fitting clamping arms are both arranged across the top cover and the shell of the battery to be welded, the structure of the clamping tooling of the press-fitting processing submodule is relatively simple. With fewer clamping arms, the battery to be welded can be clamped, and the clamping effect of the battery to be welded is relatively stable. Moreover, the battery to be welded is positioned in both the length and width directions, making the positioning of the battery to be welded relatively accurate and stable, facilitating the press-fitting process.

[0035] In some implementations of the present disclosure, the battery top cover welding system includes a third conveying module, and the pressing processing submodule is arranged at the input end of the third conveying module, so that the third conveying module can convey the batteries to be welded by the pressing processing submodule; the battery clamp of the third conveying module includes a pressure piece, which is used to apply a force toward the shell to the top cover to keep the top cover in the position after pressing.

[0036] By providing a pressing piece, the pressing piece applies a force to the top cover toward the shell, which is beneficial to prevent the relative positions of the top cover and the shell in the thickness direction of the top cover from changing significantly during the process of transporting the battery to be welded after the press-fitting process, thereby facilitating subsequent processing of the battery to be welded.

[0037] In some implementations of the present disclosure, the battery clamp of the third conveying module includes two conveying clamping arms, which are arranged opposite to each other, and the two conveying clamping arms together form a clamping space to clamp the outer surface of the battery to be welded; the pressure piece is slidably connected to the conveying clamping arms, and when the two conveying clamping arms clamp the outer surface of the battery to be welded, the direction in which the two conveying clamping arms are relatively arranged is perpendicular to the axial direction of the opening of the shell, and the direction in which the pressure piece slides relative to the conveying clamping arms is consistent with the height direction of the battery to be welded, so that the pressure piece can apply force toward the shell to the top cover.

[0038] By arranging the pressing piece on the conveying clamping arm, the pressing piece and the conveying clamping arm are slidably connected, which is conducive to making the structure more compact.

[0039] In some implementations of the present disclosure, the battery top cover welding system includes a third conveying module, and the pressing processing submodule is arranged at the input end of the third conveying module, so that the third conveying module can convey the batteries to be welded by the pressing processing submodule; the battery clamp of the third conveying module includes a first carrier, and the first carrier is used to support the side of the shell away from the top cover, so that the pressing processing submodule can press the batteries to be welded.

[0040] By providing support for the first carrier of the battery clamp of the third conveyor module, the pressure member can press-fit the battery to be welded, thereby improving the utilization rate of the battery clamp of the third conveyor module and simplifying the structure. Furthermore, providing support for the first carrier of the battery clamp of the third conveyor module helps reduce the time taken for a single cycle of the third conveyor module, and appropriately increases the time taken for a single cycle of the third conveyor module, thereby ensuring a consistent production rhythm and improving production efficiency.

[0041] In some implementations of the present disclosure, the battery top cover welding system includes a third conveying module, and the spot welding processing submodule is arranged at the output end of the third conveying module, so that the spot welding processing submodule can spot weld the top cover conveyed by the third conveying module with the shell; the clamping tooling of the spot welding processing submodule includes a first reference table, and the first reference table is used to apply a force toward the shell to the top cover along the height direction of the battery to be welded, so that the top cover remains in the position after pressing, so that the spot welding processing submodule can spot weld the battery to be welded; when the battery clamp of the third conveying module clamps the battery to be welded, the top cover is at least partially exposed outside the clamping cavity of the battery clamp, so that the first reference table can abut against the top cover.

[0042] The first reference platform effectively maintains the relative position of the top cover and the housing, improving spot welding quality. When the battery fixture of the third conveyor module holds the battery to be welded, the first reference platform abuts against the top cover, minimizing significant changes in the relative position of the top cover and the housing when the battery is transferred from the third conveyor module to the clamping fixture of the spot welding submodule, thus improving spot welding quality.

[0043] In some implementations of the present disclosure, the clamping tool of the spot welding processing submodule includes two first spot welding clamping arms arranged relative to each other along the fifth direction, the two first spot welding clamping arms jointly forming a clamping space to clamp the outer surface of the battery to be welded, and two second spot welding clamping arms arranged relative to each other along the sixth direction, the two second spot welding clamping arms jointly forming a clamping space to clamp the outer surface of the battery to be welded. When the clamping tool clamps the battery to be welded, the top cover is opposite to the opening of the shell, and the fifth direction and the sixth direction are respectively consistent with the length direction and width direction of the battery to be welded.

[0044] By having the first spot welding clamping arm and the second spot welding clamping arm clamp the outer surface of the battery to be welded along the length and width directions of the battery to be welded respectively, the battery to be welded can be accurately and firmly positioned in the length and width directions, which is conducive to improving the spot welding quality.

[0045] In some implementations of the present disclosure, the spot welding processing submodule includes a step detection mechanism, and the spot welding processing submodule also includes a first frame. The first frame is fixed relatively to the step detection mechanism, and the clamping tool of the spot welding processing submodule is slidably connected to the first frame so that the step detection mechanism can move along the welding line of the battery to be welded relative to the battery to be welded to perform step detection on the battery to be welded.

[0046] By sliding the clamping fixture and the first frame, the step detection mechanism can move along the welding line of the battery to be welded relative to the battery to be welded to perform step detection, which is beneficial to improving the accuracy of the detection.

[0047] In some implementations of the present disclosure, the battery top cover welding system also includes a full welding module and a full welding conveying module. The input end of the full welding conveying module is connected to the spot welding processing submodule, and the output end is connected to the full welding module to convey the batteries to be welded from the spot welding processing submodule to the full welding module.

[0048] By enabling the full welding conveying module to transport the batteries to be welded from the spot welding processing submodule to the full welding module, the full welding processing and spot welding processing of the batteries to be welded are integrated into one production line, which is conducive to improving production efficiency.

[0049] In some implementations of the present disclosure, the full welding module includes a full welding clamping tool, the full welding clamping tool includes a clamping mechanism and a second carrier, the clamping mechanism includes two full welding clamping arms arranged opposite to each other in a horizontal direction, the two full welding clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded, and along the direction in which the two full welding clamping arms are arranged opposite to each other, the second carrier is located between the two full welding clamping arms, and is used to support the battery to be welded located in the two full welding clamping arms in a vertical direction.

[0050] By making the second supporting member support the battery to be welded, and the clamping mechanism clamps the outer surface of the battery to be welded horizontally, the battery to be welded can be firmly clamped and accurately positioned, which is beneficial to improving the welding quality.

[0051] In some implementations of the present disclosure, the full welding clamping tool also includes a second frame, and the two full welding clamping arms are movably connected to the second frame so as to be able to clamp or release the battery to be welded; the second carrier is slidably connected to the frame in the vertical direction so as to be able to rise to the target position to carry the battery to be welded conveyed by the full welding conveying module, and to drive the battery to be welded to descend between the two full welding clamping arms so that the two full welding clamping arms clamp the battery to be welded.

[0052] By enabling the second carrier to rise or fall relative to the full welding clamping arms, the full welding conveying module is not likely to interfere with the two full welding clamping arms during the process of transferring the batteries to be welded from the full welding conveying module to the full welding clamping tooling, which is conducive to the smooth transfer of the batteries to be welded from the full welding conveying module to the full welding clamping tooling.

[0053] In some implementations of the present disclosure, the full welding module also includes a second reference platform and a lifting mechanism. The second reference platform is arranged above the full welding clamping tooling. The lifting mechanism can move in a vertical direction relative to the clamping mechanism to apply an upward force to the battery to be welded, so that the upper surface of the battery to be welded extends out of the clamping mechanism and fits with the second reference platform.

[0054] By making the lifting mechanism push the battery to be welded upward, the upper surface of the battery to be welded extends out of the clamping mechanism and fits into the second reference platform, and the battery to be welded is accurately positioned in the vertical direction. In this way, the battery to be welded is positioned in the horizontal direction by the clamping mechanism and in the vertical direction by the second reference platform. The battery to be welded is positioned in multiple directions, and the positioning accuracy is high, which is conducive to improving the welding quality.

[0055] In some implementations of the present disclosure, the full welding module also includes a fourth frame, which is relatively fixed to the second reference platform, and the full welding clamping tool is slidably connected to the fourth frame in the horizontal direction so that it can move to the full welding conveying module and the position corresponding to the second reference platform respectively.

[0056] By making the full welding clamping tool slide horizontally relative to the fourth frame, so as to move to the positions corresponding to the full welding conveying module and the second reference platform respectively, there is a large distance between the full welding conveying module and the second reference platform. The full welding conveying module is not easily affected by the second reference platform during the process of conveying the batteries to be welded to the full welding clamping tool, which facilitates the smooth transfer of the batteries to be welded from the full welding conveying module to the full welding clamping tool.

[0057] In some implementations of the present disclosure, the full welding module also includes a fourth frame, which is relatively fixed to the full welding welder of the full welding module, and the full welding clamping tool is slidably connected to the fourth frame in the horizontal direction so that it can move to positions corresponding to the full welding conveying module and the full welding welder of the full welding module, respectively, so that the full welding welder can fully weld the batteries to be welded.

[0058] By making the full welding clamping tool slide horizontally relative to the fourth frame to move to the corresponding positions of the full welding conveying module and the full welding welder respectively, there is a large distance between the full welding conveying module and the full welding welder. The full welding conveying module is not easily affected by the full welding welder during the process of conveying the batteries to be welded to the full welding clamping tool, which facilitates the smooth transfer of the batteries to be welded from the full welding conveying module to the full welding clamping tool.

[0059] In some implementations of the present disclosure, there are at least two clamping mechanisms, and at least two clamping mechanisms are arranged circumferentially, with the axial direction of the circumferential arrangement being the vertical direction; when the full welding clamping tool clamps the battery to be welded, the top cover is located on the upper side of the shell.

[0060] By using multiple clamping mechanisms to hold the battery to be welded, the battery can be accurately positioned in multiple directions, which helps improve welding quality. Moreover, when the full-weld clamping fixture holds the battery to be welded, the top cover is located on the upper side of the shell, which means that the welding line is not easily blocked by the clamping mechanism, which facilitates smooth welding.

[0061] In some implementations of the present disclosure, the full welding module also includes a protective cover picking and placing submodule, which includes a third rack, a picking part and a protective cover spare part. The protective cover spare part is used to store the protective cover, and the protective cover spare part is relatively fixed to the third rack. The picking part is movably arranged on the third rack so that it can move relative to the third rack to positions corresponding to the protective cover spare part and the battery to be welded, so as to place the protective cover from the protective cover spare part to the side of the top cover away from the shell, or place the protective cover from the battery to be welded onto the protective cover spare part.

[0062] By having the protective cover removal submodule place a protective cover on the top cover of the battery to be welded, the non-welding wires of the battery to be welded can be effectively protected, which helps reduce damage during the welding process. By having the protective cover removal submodule remove the protective cover from the top cover of the battery to be welded, the battery unloading is facilitated. After the protective cover removal submodule removes the protective cover from the top cover of the battery to be welded, the protective cover can be replaced by the protective cover removal submodule on another battery to be welded, allowing the protective cover to be recycled, which helps improve production efficiency.

[0063] In a second aspect, the present disclosure provides a battery top cover welding method, which is applied to a battery top cover welding system, wherein the battery top cover welding system includes a battery clamp, a power mechanism, a cleaning processing submodule, a pressing processing submodule and a spot welding processing submodule; the battery top cover welding method includes: controlling the battery clamp to clamp both the shell and the top cover of the battery to be welded to maintain the relative position of the top cover and the shell; controlling the power mechanism to drive the battery clamp to move to transport the battery to be welded, so that the battery to be welded is transported to the cleaning processing submodule, the pressing processing submodule and the spot welding processing submodule in turn, so that the cleaning processing submodule, the pressing processing submodule and the spot welding processing submodule can process the same battery to be welded in turn.

[0064] By setting up a battery clamp, the battery clamp clamps the shell and top cover of the battery to be welded to maintain the relative position of the top cover and the shell. The shell and top cover of the battery to be welded can be synchronously transported to the processing module for processing, which is conducive to improving production efficiency.

[0065] In some implementations of the present disclosure, the battery top cover welding system also includes a full welding module; the full welding module includes a second reference platform, a lifting mechanism and a full welding clamping tool, the full welding clamping tool includes a clamping mechanism, and the clamping mechanism is used to clamp the battery to be welded in the horizontal direction; the battery top cover welding method also includes: when the battery to be welded is in a position corresponding to the second reference platform, controlling the lifting mechanism to move in a vertical direction relative to the clamping mechanism to apply an upward force to the battery to be welded, so that the upper surface of the battery to be welded extends out of the clamping mechanism and fits with the second reference platform; when the upper surface of the battery to be welded is in fit with the second reference platform, controlling the clamping mechanism to clamp the battery to be welded.

[0066] By making the lifting mechanism apply an upward force to the battery to be welded, before the upper surface of the battery to be welded extends out of the clamping space and fits into the second reference platform, the clamping mechanism does not clamp the battery to be welded, or only applies a small clamping force to the battery to be welded. After the upper surface of the battery to be welded extends out of the clamping space and fits into the second reference platform, that is, after the posture of the battery to be welded is adjusted to a suitable position, the clamping mechanism applies a larger clamping force to the battery to be welded to firmly clamp the battery to be welded, which is beneficial to reducing the friction between the battery to be welded and the clamping mechanism during the process of the lifting mechanism pushing the battery to be welded.

[0067] In some implementations of the present disclosure, the full welding module also includes a protective cover picking and placing submodule; the battery top cover welding method also includes: controlling the protective cover picking and placing submodule to place the protective cover on the side of the top cover away from the shell; controlling the full welding welder of the full welding module to weld the battery to be welded; controlling the protective cover picking and placing submodule to remove the protective cover on the battery after full welding.

[0068] By having the protective cover removal submodule place a protective cover on the top cover of the battery to be welded, the non-welding wires of the battery to be welded can be effectively protected, which helps reduce damage during the welding process. By having the protective cover removal submodule remove the protective cover from the top cover of the battery to be welded, the battery unloading is facilitated. After the protective cover removal submodule removes the protective cover from the top cover of the battery to be welded, the protective cover can be replaced by the protective cover removal submodule on another battery to be welded, allowing the protective cover to be recycled, which helps improve production efficiency.

[0069] In some implementations of the present disclosure, controlling the protective cover picking and placing submodule to place the protective cover on the side of the top cover away from the shell includes at least one of the following: controlling the protective cover picking and placing submodule to place the protective cover from the protective cover spare part to the side of the top cover away from the shell; controlling the protective cover picking and placing submodule to place the protective cover from the fully welded battery to the side of the top cover away from the shell.

[0070] By controlling the protective cover pick-and-place submodule to place the protective cover from the fully welded battery to the side of the top cover away from the housing, after the protective cover has been used a sufficient number of times, that is, after the same protective cover has been placed on a sufficient number of batteries to be welded in this manner, the protective cover is removed and then transported to the protective cover stock unit. This helps improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0072] FIG1 is a schematic diagram of the structure of a conveying and clamping clamp arm clamping a battery to be welded in some embodiments of the present disclosure;

[0073] FIG2 is a structural block diagram of a first portion of a welding production line in some embodiments of the present disclosure;

[0074] FIG3 is a schematic structural diagram of a first conveying module conveying cells to be welded to a short-side cleaning submodule in some embodiments of the present disclosure;

[0075] FIG4 is a schematic structural diagram of a first battery clamp according to some embodiments of the present disclosure;

[0076] FIG5 is a second structural schematic diagram of the first battery clamp in some embodiments of the present disclosure;

[0077] FIG6 is a schematic structural diagram of a second conveying module conveying batteries to be welded to a press-fitting submodule in some embodiments of the present disclosure;

[0078] FIG7 is a schematic structural diagram of a clamping tool for clamping a battery to be welded in a press-fitting processing submodule in some embodiments of the present disclosure;

[0079] FIG8 is a schematic structural diagram of a second battery clamp in some embodiments of the present disclosure;

[0080] FIG9 is a schematic structural diagram of a third battery clamp in some embodiments of the present disclosure;

[0081] FIG10 is a schematic diagram of a first battery fixture flow diagram in some embodiments of the present disclosure;

[0082] FIG11 is a second schematic diagram of the flow of the first battery clamp in some embodiments of the present disclosure;

[0083] FIG12 is a schematic diagram of a flow chart of the second battery fixture in some embodiments of the present disclosure;

[0084] FIG13 is a second schematic diagram of the flow of the second battery fixture in some embodiments of the present disclosure;

[0085] FIG14 is a schematic diagram of a flow chart of a third battery fixture in some embodiments of the present disclosure;

[0086] FIG15 is a second schematic diagram of the flow of the third battery fixture in some embodiments of the present disclosure;

[0087] FIG16 is a schematic structural diagram of a spot welding processing submodule in some embodiments of the present disclosure;

[0088] FIG17 is a schematic diagram of the structure of a spot welding clamping tool clamping a battery to be welded in some embodiments of the present disclosure;

[0089] FIG18 is a schematic diagram of the flow of spot welding clamping tooling in some embodiments of the present disclosure;

[0090] FIG19 is a schematic diagram of a process of transporting batteries to be welded by a spot welding inspection and conveying mechanism in some embodiments of the present disclosure;

[0091] FIG20 is a schematic structural diagram of a spot welding detection conveying mechanism in some embodiments of the present disclosure;

[0092] FIG21 is a schematic diagram of a full welding clamping tool in some embodiments of the present disclosure;

[0093] FIG22 is a second structural schematic diagram of a full welding clamping tool in some embodiments of the present disclosure;

[0094] FIG23 is a schematic structural diagram of a protective cover taking and placing submodule in some embodiments of the present disclosure;

[0095] FIG24 is a schematic structural diagram of a protective cover removal and placement submodule in some embodiments of the present disclosure removing and placing a protective cover on a battery to be welded;

[0096] FIG25 is a schematic diagram of the flow of a full welding clamping tool in some embodiments of the present disclosure;

[0097] FIG26 is a schematic diagram of the flow of a rolling fixture in some embodiments of the present disclosure;

[0098] FIG27 is a schematic structural diagram of a rolling fixture in some embodiments of the present disclosure;

[0099] FIG28 is a schematic structural diagram of the flow of a post-weld inspection fixture in some embodiments of the present disclosure;

[0100] FIG29 is a schematic diagram of a process for discharging and reflowing batteries to be welded in some embodiments of the present disclosure;

[0101] FIG30 is a schematic structural diagram of a discharge and reflux module in some embodiments of the present disclosure;

[0102] FIG31 is a schematic flow chart of a battery top cover welding method in some embodiments of the present disclosure;

[0103] FIG32 is a schematic diagram of a clamping process of a full welding clamping tool in some embodiments of the present disclosure;

[0104] FIG33 is a schematic diagram of one of the processes of the protective cover taking and placing submodule in some embodiments of the present disclosure;

[0105] FIG34 is a second schematic diagram of a process of placing and removing a protective cover by a protective cover placing and removing submodule in some embodiments of the present disclosure;

[0106] FIG35 is a third schematic diagram of the process of taking and placing the protective cover by the protective cover taking and placing submodule in some embodiments of the present disclosure.

[0107] Explanation of reference numerals: 01-battery to be welded; 011-top cover; 012-housing; 02-transport clamping arm; 1-first transport module; 11-first battery clamp; 111- Short side clamping arm; 1111-first extending member; 112-large surface clamping arm; 113-short side clamping cylinder; 114-large surface clamping cylinder; 115-large surface clamping arm upper and lower cylinders; 116-first sliding frame; 1161-first slider; 12-first lifting cylinder; 2-short side cleaning processing submodule; 21-cleaning clamping arm; 22-short side cleaner; 3-second conveying module; 31-second battery clamp; 311-pressing conveying clamping arm; 312-second sliding frame; 3121-second slider; 32-second lifting cylinder; 4-pressing processing submodule; 41-pressure member; 42-first press-fitting clamping arm; 43-second press-fitting clamping arm; 44-fifth Frame; 5-third conveying module; 51-third battery clamp; 511-pressing member; 512-spot welding conveying clamping arm; 513-first bearing member; 54-third sliding frame; 541-third slider; 55-pressing member driving cylinder; 56-spot welding conveying clamping cylinder; 6-spot welding processing submodule; 61-spot welding clamping tool; 611-first reference platform; 612-first spot welding clamping arm; 613-first spot welding clamping cylinder; 614-second spot welding clamping cylinder; 62-step detection mechanism; 63-spot welding welder; 71-spot welding detection conveying mechanism; 711-detection clamping arm; 712-detection clamping cylinder; 72-spot welding detector; 81-full welding clamping tool Installation; 811-first full-weld clamping arm; 812-second full-weld clamping arm; 813-first full-weld clamping cylinder; 814-second full-weld clamping cylinder; 815-second carrier; 816-carrier lifting cylinder; 82-lifting mechanism; 83-protective cover pick-up and placement submodule; 831-third rack; 832-material picker; 833-protective cover preparation part; 834-protective cover cleaning mechanism; 84-second reference platform; 85-full-weld welder; 91-rolling fixture; 911-rolling reference clamping arm; 912-rolling movable clamping arm; 913-rolling clamping cylinder; 92-short-side rolling mechanism; 93-long-side rolling mechanism; 10-discharging and reflow module; 101-post-weld inspection Mechanism 101; 1011-long edge detector; 1012-short edge detector; 103-post-weld inspection fixture; 104-sorting module; 105-good product discharge conveyor line; 106-defective product discharge conveyor line; 107-reflow conveyor line; 108-transplant conveyor line; a-first direction; b-second direction; c-third direction; d-fourth direction; e-fifth direction; f-sixth direction; g-vertical direction; y1-first horizontal direction starting position; z1-first horizontal direction ending position; y2-second horizontal direction starting position; z2-second horizontal direction ending position; y3-third horizontal direction starting position; z3-third horizontal direction ending position; y4-fourth horizontal direction starting position;z4 - fourth horizontal direction end position; x1 - loading position; x2 - full welding loading position; x3 - full welding discharge position; x4 - roller pressing loading position; x5 - post-weld inspection loading position; x6 - unloading position; x7 - good product discharge position; x8 - defective product discharge position. DETAILED DESCRIPTION

[0108] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0109] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this disclosure.

[0110] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0111] In the description of the embodiments of the present disclosure, the specific order or sequence of the technical steps may be interchanged without conflict, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0112] In the description of the embodiments of the present disclosure, the technical terms "first," "second," "third," etc. are used only to distinguish objects and should not be understood as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features. In some embodiments of the present disclosure, "first," "second," "third," etc. may also refer to the same object. In the description of the embodiments of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0113] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0114] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0115] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the technical term "abutment" should be understood in a broad sense, and can refer to direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0116] Hereinafter, the present disclosure will be described in detail.

[0117] Currently, new energy batteries are increasingly being used in everyday life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in a variety of fields such as aerospace. As the application of power batteries continues to expand, market demand is also growing.

[0118] During the battery production process, the batteries need to be transported to multiple processing devices in sequence for processing. In the related art, the battery shell and top cover are often transported to the processing devices in sequence for processing, which has low production efficiency.

[0119] Please refer to Figures 1 and 2. The embodiment of the present disclosure provides a battery top cover welding system, which includes a conveying module and a processing module. The conveying module includes a battery clamp and a power mechanism; the battery clamp is used to clamp the shell 012 and the top cover 011 of the battery 01 to be welded to maintain the relative position of the top cover 011 and the shell 012; the battery clamp is set on the output end of the power mechanism so that it can move and transport the battery 01 to be welded under the drive of the output end of the power mechanism; the processing module includes a cleaning processing submodule, a pressing processing submodule 4 and a spot welding processing submodule 6. The cleaning processing submodule, the pressing processing submodule 4 and the spot welding processing submodule 6 are all set at the output end of the corresponding conveying module to process the same battery 01 to be welded conveyed by the battery clamp in sequence. By setting up a battery clamp, the battery clamp clamps the shell 012 and the top cover 011 of the battery 01 to be welded to maintain the relative positions of the top cover 011 and the shell 012. The shell 012 and the top cover 011 of the battery 01 to be welded can be synchronously transported to the processing module for processing, which is conducive to improving production efficiency.

[0120] The batteries in the embodiments of the present disclosure can be implemented in various forms. In some embodiments of the present disclosure, the batteries can be secondary batteries, which are batteries that can be recharged to activate their active materials after discharge for continued use. The batteries can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, and the like, although the embodiments of the present disclosure are not limited thereto.

[0121] The battery top cover welding system provided in the embodiment of the present disclosure is used to weld the top cover 011 of the battery to the shell 012. In some embodiments of the present disclosure, the battery is a battery cell, and the shell 012 is used to encapsulate components such as electrode assemblies and electrolytes. The shell 012 can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell) or an aluminum-plastic film, etc. The shell 012 is formed with a accommodating cavity, and the accommodating cavity has an opening. After the bare battery cell enters the accommodating cavity through the opening, the battery top cover welding system welds the edge of the top cover 011 to the edge of the opening, so that the top cover 011 is combined with the opening to close the accommodating cavity to form a battery cell.

[0122] Please refer to Figures 1 and 2. The embodiment of the present disclosure provides a battery top cover welding system, which includes a conveying module and a processing module. The conveying module includes a battery clamp and a power mechanism; the battery clamp is used to clamp the shell 012 and the top cover 011 of the battery 01 to be welded to maintain the relative position of the top cover 011 and the shell 012; the battery clamp is set on the output end of the power mechanism so that it can move and transport the battery 01 to be welded under the drive of the output end of the power mechanism; the processing module includes a cleaning processing submodule, a pressing processing submodule 4 and a spot welding processing submodule 6. The cleaning processing submodule, the pressing processing submodule 4 and the spot welding processing submodule 6 are all set at the output end of the corresponding conveying module to process the same battery 01 to be welded conveyed by the battery clamp in sequence.

[0123] By setting up a battery clamp, the battery clamp clamps the shell 012 and the top cover 011 of the battery 01 to be welded to maintain the relative positions of the top cover 011 and the shell 012. The shell 012 and the top cover 011 of the battery 01 to be welded can be synchronously transported to the processing module for processing, which is conducive to improving production efficiency.

[0124] In some embodiments of the present disclosure, please refer to Figures 1 and 2, the battery clamp includes two conveying clamping arms 02 arranged opposite to each other along a first direction a, and the two conveying clamping arms 02 jointly form a clamping space to clamp the outer surface of the battery 01 to be welded; when the battery clamp clamps the battery 01 to be welded, the top cover 011 is opposite to the opening of the shell 012, and the first direction a is perpendicular to the axial direction of the opening, such as the first direction is consistent with the width direction or length direction of the battery 01 to be welded, and the two conveying clamping arms 02 are both arranged across the top cover 011 and the shell 012 to clamp both the top cover 011 and the shell 012 along the first direction a.

[0125] In the disclosed embodiment, the two conveying clamping arms 02 are arranged relative to each other along a first direction a. The two conveying clamping arms 02 jointly form a clamping space to clamp the outer surface of the battery 01 to be welded. This clamping space is the space between the two conveying clamping arms along the first direction. When the battery clamp clamps the battery 01 to be welded, the battery 01 to be welded is located within the clamping space. Along the first direction a, the two conveying clamping arms 02 are located on opposite sides of the battery 01 to be welded, and the battery 01 to be welded is clamped between the two conveying clamping arms 02 along the first direction a. The two conveying clamping arms 02 respectively abut against the end surfaces of the battery 01 to be welded at both ends in the first direction a. Along the first direction a, the conveying clamping arms 02 exert a force toward the other end surface of the battery 01 to be welded, that is, the two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the first direction a. The same applies to the two clamping arms arranged relative to each other to form a clamping space to clamp the battery 01 to be welded.

[0126] In the disclosed embodiments, the top cover 011 is directly opposite the opening of the shell 012, that is, the top cover 011 and the opening of the shell 012 are arranged opposite each other, and the contour of the projection of the top cover 011 onto the shell 012 along the thickness direction matches the circumferential contour of the opening. In some embodiments of the disclosed embodiments, referring to Figures 1 and 2, when the battery clamp is holding the battery 01 to be welded, the thickness direction of the top cover 011 is consistent with the vertical direction g, and the opening is facing upward. This is conducive to maintaining the top cover 011 in a directly opposite position to the opening when the battery clamp is holding the battery 01 to be welded.

[0127] The first direction a in the disclosed embodiment is consistent with the width direction of the battery 01 to be welded, that is, the two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the width direction of the battery 01 to be welded, that is, the battery 01 to be welded is clamped between the two conveying clamping arms 02 along the width direction. In this state, the two conveying clamping arms 02 are respectively located on opposite sides of the battery 01 to be welded in the width direction, and the battery 01 to be welded is located between the two conveying clamping arms 02 in the width direction. The two conveying clamping arms 02 respectively abut against the end faces of the battery 01 to be welded at both ends in the width direction. Along the width direction of the battery 01 to be welded, the conveying clamping arms 02 apply a force toward the other end face of the battery 01 to be welded, that is, the two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the width direction of the battery 01 to be welded.

[0128] In the disclosed embodiment, the first direction a coincides with the length direction of the battery 01 to be welded, meaning that the two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the length direction of the battery 01 to be welded, meaning that the battery 01 to be welded is clamped between the two conveying clamping arms 02 along the length direction. In this state, the two conveying clamping arms 02 are located on opposite sides of the battery 01 to be welded in the length direction, and the battery 01 to be welded is located between the two conveying clamping arms 02 in the length direction. The two conveying clamping arms 02 abut against the end surfaces of the battery 01 to be welded in the length direction. Along the length direction of the battery 01 to be welded, the conveying clamping arms 02 apply a force toward the other end surface of the battery 01 to be welded, meaning that the two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the length direction of the battery 01 to be welded. The same applies to the case where the opposing clamping arms are in a clamping state and the arrangement direction coincides with the length direction or width direction of the battery 01 to be welded.

[0129] The conveying clamping clamping arm 02 in the embodiment of the present disclosure is arranged across the top cover 011 and the shell 012 of the battery to be welded 01 to maintain the relative position of the top cover 011 and the shell 012, that is, along the height direction of the battery to be welded 01, the first end of the conveying clamping clamping arm 02 is in contact with the shell 012, and the second end is in contact with the top cover 011. The first ends of the two conveying clamping clamping arms 02 are arranged relative to each other along the first direction a, and together form a clamping space to clamp the shell 012, and the shell 012 is clamped between the first ends of the two conveying clamping clamping arms 02 along the first direction a. The second ends of the two conveying clamping clamping arms 02 are arranged relative to each other along the first direction a, and together form a clamping space to clamp the top cover 011, and the top cover 011 is clamped between the second ends of the two conveying clamping clamping arms 02 along the first direction a.

[0130] The first ends of the two conveying clamping arms 02 are respectively located on opposite sides of the shell 012 in the first direction a, and the shell 012 is located between the first ends of the two conveying clamping arms 02 in the first direction a. The first ends of the two conveying clamping arms 02 are respectively abutted against the end surfaces of the shell 012 at both ends in the first direction a. Along the first direction a, among the end surfaces at both ends of the shell 012, the first end of the conveying clamping arm 02 applies a force toward the other one to which it abuts.

[0131] The second ends of the two transport clamping arms 02 are located on opposite sides of the top cover 011 in the first direction a. The top cover 011 is located between the second ends of the two transport clamping arms 02 in the first direction a. The second ends of the two transport clamping arms 02 respectively abut against the end faces of the top cover 011 at both ends in the first direction a. Along the first direction a, the second ends of the transport clamping arms 02 apply a force toward the other end face of the top cover 011. The clamping arms described later are arranged across the top cover 011 and the shell 012 of the battery 01 to be welded to clamp both the top cover 011 and the shell 012.

[0132] In the disclosed embodiment, the height direction of the battery 01 to be welded and the thickness direction of the top cover 011 are aligned with the axial direction of the opening. The width direction of the battery 01 to be welded is perpendicular to the length direction of the battery 01 to be welded, and the width direction of the battery 01 to be welded and the length direction of the battery 01 to be welded are perpendicular to the height direction of the battery 01 to be welded.

[0133] By having two conveying clamping arms 02 clamp the outer surface of the battery 01 to be welded along the width direction or length direction of the battery 01 to be welded, and both conveying clamping arms 02 are arranged across the top cover 011 and the shell 012 of the battery 01 to be welded to maintain the relative position of the top cover 011 and the shell 012, it is beneficial to make the structure of the battery clamp relatively simple, and the battery 01 to be welded can be clamped by fewer clamping arms, and the clamping effect on the battery 01 to be welded is relatively stable. Moreover, when the conveying module conveys the battery 01 to be welded to the processing module, the openings of the top cover 011 and the shell 012 are in a relative state. The processing module does not need to make significant adjustments to the relative position of the top cover 011 and the shell 012, and can control the top cover 011 to be coupled to the opening, which is relatively convenient. The conveying module in this embodiment can refer to the first conveying module 1, the second conveying module 3, and the third conveying module 5, etc.

[0134] In some embodiments of the present disclosure, referring to Figures 1 and 2, the two conveying clamping arms 02 can move closer to or further from each other along the arrangement direction to clamp or release the battery 01 to be welded. This allows the battery clamp to clamp batteries 01 of various sizes to be welded, which helps improve the compatibility of the battery top cover welding system.

[0135] In some embodiments of the present disclosure, referring to Figures 1 and 2, the battery clamp further includes a force sensor for detecting the clamping force between the battery clamp and the outer surface of the battery to be welded 01. In this way, the force sensor can reflect whether the battery clamp is clamped in place.

[0136] In some embodiments of the present disclosure, referring to Figures 1 and 2 , when the battery clamp is clamping a battery 01 to be welded, the first direction a coincides with the lengthwise direction of the battery 01 to be welded. Each of the two conveying clamping arms 02 includes at least two conveying sub-clamping arms. The conveying sub-clamping arms of the two conveying clamping arms 02 are arranged in a one-to-one correspondence, the corresponding conveying sub-clamping arms are arranged opposite each other, and the corresponding conveying sub-clamping arms together form a clamping space to clamp the outer surface of the battery 01 to be welded. When clamping the battery to be welded, the at least two conveying sub-clamping arms belonging to the same conveying clamping arm 02 are arranged along the lengthwise direction of the battery 01 to be welded. This facilitates a more stable clamping of the battery 01 to be welded. In some embodiments of the present disclosure, both conveying clamping arms 02 may include two conveying sub-clamping arms. In some embodiments of the present disclosure, the two conveying sub-clamping arms belonging to the same conveying clamping arm 02 can be used to clamp the battery 01 to be welded at both ends in the lengthwise direction. The conveying module in this embodiment may refer to the first conveying module 1, the second conveying module 3, the third conveying module 5, etc.

[0137] In some embodiments of the present disclosure, referring to Figures 1 and 2, when the battery fixture is holding the battery to be welded, the axial direction of the opening remains unchanged, and the power mechanism can drive the battery fixture to move in a direction perpendicular to the axial direction of the opening, such as the horizontal direction, so that the battery fixture conveys the battery 01 to be welded to a position that is horizontally flush with the corresponding part of the processing module, so that the processing module can process the battery 01 to be welded conveyed by the battery fixture. In this way, it is convenient for the processing module to process the battery 01 to be welded conveyed by the battery fixture. The conveying module in this embodiment can refer to the first conveying module 1, the second conveying module 3, and the third conveying module 5, etc.

[0138] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 is arranged on the first sliding frame 116. The first sliding frame 116 has a first slider 1161. The first slider 1161 is connected to the slide rail in a horizontal sliding direction. The power mechanism can drive the first sliding frame 116 to slide relative to the slide rail, so that the first battery clamp 11 can transport the battery 01 to be welded to a position that is horizontally flush with the corresponding part of the processing module.

[0139] In some embodiments of the present disclosure, please refer to Figures 6, 7 and 8. The second battery clamp 31 is arranged on the second sliding frame 312. The second sliding frame 312 has a second slider 3121. The second slider 3121 is connected to the slide rail in a horizontal sliding direction. The power mechanism can drive the second sliding frame 312 to slide relative to the slide rail, so that the second battery clamp 31 can transport the battery 01 to be welded to a position that is horizontally flush with the corresponding part of the processing module.

[0140] In some embodiments of the present disclosure, please refer to Figure 9, the third battery clamp 51 is arranged on the third sliding frame 54, and the third sliding frame 54 has a third slider 541. The third slider 541 is connected to the slide rail in a horizontal sliding direction. The power mechanism can drive the third sliding frame 54 to slide relative to the slide rail, so that the third battery clamp 51 can transport the battery 01 to be welded to a position that is horizontally flush with the corresponding part of the processing module.

[0141] In some embodiments of the present disclosure, the power mechanism includes a lifting cylinder, which can drive the battery clamp to move in the vertical direction g, so that when the battery clamp conveys the battery to be welded 01 to a position that is flush with the corresponding part of the processing module in the horizontal direction, the lifting cylinder can drive the battery clamp to move upward, so that the battery to be welded 01 rises to a position corresponding to the clamping tool of the processing module, so that the clamping tool of the processing module can clamp the battery to be welded 01, so that the processing module can process the battery to be welded 01. The processing module is the processing module located at the output end of the conveying module. In this way, when the battery clamp conveys the battery to be welded 01 in the horizontal direction, the battery clamp is not likely to interfere with the clamping tool. The conveying module in this embodiment can refer to the first conveying module 1, the second conveying module 3 and the third conveying module 5, etc.

[0142] For example, in some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 is slidably connected to the first sliding frame 116 in the vertical direction. When the first battery clamp 11 transports the battery 01 to be welded to a position that is flush with the corresponding part of the processing module in the horizontal direction, the lifting cylinder can drive the first battery clamp 11 to move upward relative to the first sliding frame, so that the battery 01 to be welded rises to a position corresponding to the clamping tooling of the processing module.

[0143] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The power mechanism of the first conveying module 1 includes a first lifting cylinder 12. The first lifting cylinder 12 can drive the first battery clamp 11 to move along the vertical direction g, so that when the first battery clamp 11 conveys the battery to be welded 01 to a position that is horizontally flush with the corresponding part of the processing module, the first battery clamp 11 can drive the first battery clamp 11 to move upward, so that the battery to be welded 01 rises to a position corresponding to the clamping tooling, so that the clamping tooling can clamp the battery to be welded 01.

[0144] In some embodiments of the present disclosure, please refer to Figures 3, 4, 5 and 10. The arrow in Figure 2 is the flow direction of the first battery clamp 11 in the process of flowing from the loading position x1 to the short edge cleaning processing sub-module 2. The first battery clamp 11 first receives the material at the loading position x1, and then the first lifting cylinder 12 contracts. The first battery clamp 11 moves downward from the loading position x1 to the first horizontal starting position y1 directly below the loading position x1, and then the first lifting cylinder 12 remains in a contracted state. The first battery clamp 11 moves horizontally to the first horizontal ending position z1 directly below the short edge cleaning processing sub-module 2, and then the first lifting cylinder 12 lifts, driving the first battery clamp 11 to rise to the short edge cleaning processing sub-module 2.

[0145] In some embodiments of the present disclosure, please refer to Figures 3, 4, 5 and 11. The process of the first battery clamp 11 returning from the short-side cleaning processing submodule 2 to the loading position x1 can be the opposite of the above process. First, the first lifting cylinder 12 contracts, and the first battery clamp 11 moves downward from the short-side cleaning processing submodule 2 to the first horizontal end position z1. Then, the first lifting cylinder 12 remains in a contracted state, and the first battery clamp 11 moves horizontally from the first horizontal end position z1 to the first horizontal starting position y1. Then, the first lifting cylinder 12 is lifted, driving the first battery clamp 11 to rise to the loading position x1 to receive the material.

[0146] In some embodiments of the present disclosure, please refer to Figures 6, 7 and 8. The power mechanism of the second conveying module 3 includes a second lifting cylinder 32. The second lifting cylinder 32 can drive the second battery clamp 31 to move along the vertical direction g, so that when the second battery clamp 31 conveys the battery to be welded 01 to a position that is horizontally flush with the corresponding part of the processing module, the second battery clamp 31 can drive the second battery clamp 31 to move upward, so that the battery to be welded 01 rises to a position corresponding to the clamping tooling, so that the clamping tooling can clamp the battery to be welded 01.

[0147] In some embodiments of the present disclosure, please refer to Figures 6, 7, 8 and 12. The arrow in Figure 4 is the flow direction of the second battery clamp 31 in the process of flowing from the short side cleaning processing sub-module 2 to the press-fitting processing sub-module 4. The second battery clamp 31 first receives the material in the short side cleaning processing sub-module 2, and then the second lifting cylinder 32 contracts. The second battery clamp 31 moves downward from the short side cleaning processing sub-module 2 to the second horizontal starting position y2 directly below the short side cleaning processing sub-module 2, and then the second lifting cylinder 32 remains in a contracted state. The second battery clamp 31 moves horizontally to the second horizontal ending position z2 directly below the press-fitting processing sub-module 4, and then the second lifting cylinder 32 lifts, driving the second battery clamp 31 to rise to the press-fitting processing sub-module 4.

[0148] In some embodiments of the present disclosure, please refer to Figures 6, 7, 8 and 13. The process of the second battery fixture 31 returning from the press-fitting processing submodule 4 to the short-side cleaning processing submodule 2 can be the opposite of the above process. First, the second lifting cylinder 32 is retracted, and the second battery fixture 31 moves downward from the press-fitting processing submodule 4 to the second horizontal end position z2. Then, the second lifting cylinder 32 remains in a retracted state, and the second battery fixture 31 moves horizontally from the second horizontal end position z2 to the second horizontal starting position y2. Then, the second lifting cylinder 32 is lifted, driving the second battery fixture 31 to rise to the short-side cleaning processing submodule 2 to receive the material.

[0149] In some embodiments of the present disclosure, please refer to Figure 9, the power mechanism of the third conveying module 5 includes a third lifting cylinder, which can drive the third battery clamp 51 to move in the vertical direction g, so that when the third battery clamp 51 conveys the battery to be welded 01 to a position that is horizontally flush with the corresponding part of the processing module, the third battery clamp 51 can drive the third battery clamp 51 to move upward, so that the battery to be welded 01 rises to a position corresponding to the clamping tooling, so that the clamping tooling can clamp the battery to be welded 01.

[0150] In some embodiments of the present disclosure, please refer to Figures 9 and 14. The arrow in Figure 6 is the flow direction of the third battery clamp 51 in the process of flowing from the press-fitting processing sub-module 4 to the spot welding processing sub-module 6. The third battery clamp first picks up the material in the press-fitting processing sub-module 4, and then the third lifting cylinder contracts. The third battery clamp 51 moves downward from the press-fitting processing sub-module 4 to the third horizontal starting position y3 directly below the press-fitting processing sub-module 4, and then the third lifting cylinder remains in a contracted state. The third battery clamp 51 moves horizontally to the third horizontal ending position z3 directly below the spot welding processing sub-module 6, and then the third lifting cylinder lifts, driving the third battery clamp 51 to rise to the spot welding processing sub-module 6.

[0151] In some embodiments of the present disclosure, referring to Figures 9 and 15 , the process of returning the third battery fixture 51 from the spot welding processing submodule 6 to the press-fitting processing submodule 4 can be the opposite of the above process. First, the third lifting cylinder contracts, and the third battery fixture 51 moves downward from the spot welding processing submodule 6 to the third horizontal end position z3. Then, the third lifting cylinder remains contracted, and the third battery fixture 51 moves horizontally from the third horizontal end position z3 to the third horizontal starting position y3. Then, the third lifting cylinder is lifted, driving the third battery fixture 51 to rise to the press-fitting processing submodule 4 to receive the material.

[0152] In some embodiments of the present disclosure, please refer to Figures 1 and 2. The number of processing modules is at least two, and they are arranged in sequence. A conveying module is provided between each two adjacent processing modules, so that the conveying module can convey the battery 01 to be welded from one of the two adjacent processing modules to the other, so that the battery 01 to be welded can be conveyed to each processing module in sequence.

[0153] In the embodiment of the present disclosure, the battery 01 to be welded is sequentially transported to each processing module. For example, there are three processing modules, namely the first processing module, the second processing module and the third processing module. A conveying module is provided between the first processing module and the second processing module, hereinafter referred to as the first conveying module, and another conveying module is provided between the second processing module and the third processing module, hereinafter referred to as the second conveying module. The first conveying module conveys the battery 01 to be welded from the first processing module to the second processing module, and the second conveying module conveys the battery 01 to be welded from the second processing module to the third processing module. In this way, the battery 01 to be welded is sequentially transported to the first processing module, the second processing module and the third processing module, that is, the battery 01 to be welded can be sequentially transported to each processing module. In some embodiments of the present disclosure, the first processing module can be a cleaning processing submodule, the second processing module can be a press-fitting processing submodule 4, and the third processing module can be a spot welding processing submodule 6.

[0154] By enabling the conveying module to transfer the battery 01 to be welded between the two processing modules, the battery 01 to be welded is sequentially conveyed to each processing module, which is beneficial to improving production efficiency.

[0155] In some embodiments of the present disclosure, at least two processing modules are arranged in sequence along a horizontal direction, which is more convenient to implement and has lower costs.

[0156] On this basis, in some embodiments of the present disclosure, please refer to Figures 1 and 2, at least two processing modules can be arranged in sequence along a straight line, and the conveying module between each two adjacent processing modules can synchronously convey the battery 01 to be welded in the horizontal direction. In this way, the conveying efficiency is relatively high. Taking the synchronous conveying of the battery 01 to be welded by the first conveying module and the second conveying module as an example, in some embodiments of the present disclosure, the first processing module, the second processing module and the third processing module can be arranged in sequence along a straight line, the battery clamp of the first conveying module is hereinafter referred to as the first battery clamp, and the battery clamp of the second conveying module is hereinafter referred to as the second battery clamp, and the first conveying module and the second conveying module move synchronously in the horizontal direction to convey the battery 01 to be welded, that is, along the arrangement direction of the first processing module, the second processing module and the third processing module, when the first battery clamp is in a position flush with the first processing module, when the second battery clamp is in a position flush with the second processing module; along the arrangement direction of the first processing module, the second processing module and the third processing module, During the process of the first battery clamp moving from the first processing module to the second processing module, the second battery clamp synchronously moves from the second processing module to the third processing module. When the first battery clamp moves to a position flush with the second processing module, the second battery clamp moves to a position flush with the third processing module. Along the arrangement direction of the first processing module, the second processing module and the third processing module, during the process of the first battery clamp moving from a position flush with the second processing module to the first processing module, the second battery clamp moves from a position flush with the third processing module to the second processing module. During the above movement process, when the first battery clamp moves to a position flush with the first processing module, the second battery clamp moves to a position flush with the second processing module.

[0157] On this basis, in some embodiments of the present disclosure, please refer to Figures 1, 2 and 10, the battery top cover welding system also includes a third conveying module, which is arranged between the loading position x1 and the first conveying module 1, so that the battery 01 to be welded is conveyed from the loading position x1 to the first conveying module 1, and the loading position x1, the first processing module, the second processing module and the third processing module are arranged in sequence along a straight line, and the first conveying module, the second conveying module 3 and the third conveying module can synchronously convey the battery 01 to be welded in the horizontal direction.

[0158] In some embodiments of the present disclosure, when the power mechanism includes a lifting cylinder, the first battery clamp and the second battery clamp can be synchronously lifted by the corresponding lifting cylinders to positions corresponding to the clamping tooling of the corresponding processing module, so that the corresponding clamping tooling can clamp the battery 01 to be welded.

[0159] In some embodiments of the present disclosure, please refer to Figures 1 and 2. The processing module includes a clamping tool, which is used to clamp both the shell 012 and the top cover 011 to maintain the relative positions of the top cover 011 and the shell 012, so that the processing module can process the battery 01 to be welded; when the battery fixture is in a corresponding position with the processing module, the battery fixture and the clamping tool are staggered so that the battery fixture and the clamping tool can clamp the battery 01 to be welded together.

[0160] In the disclosed embodiment, the clamping fixture can clamp the outer surface of the battery to be welded 01. In the clamped state, the clamping fixture is maintained at a certain position relative to the processing unit of the processing module, so that the battery to be welded 01 is maintained at a certain position relative to the processing unit, so that the processing unit can process the battery to be welded 01. For example, the processing module is a cleaning processing submodule configured to clean the battery to be welded 01, and the processing unit of the cleaning processing submodule is the cleaner of the cleaning processing submodule, and the cleaner can be an ultrasonic air knife, etc.; the processing module is a welding processing module configured for welding, and the processing unit of the welding processing module is the welder of the welding processing module, and the welder can be a laser, etc. The clamping fixture of the cleaning processing submodule, the clamping fixture of the press-fitting processing submodule 4, and the clamping fixture of the spot welding processing submodule 6 can all clamp the battery to be welded 01 together with the corresponding battery fixture.

[0161] By enabling the battery clamp and the corresponding clamping tool to jointly clamp the battery 01 to be welded, the relative positions of the top cover 011 and the shell 012 will not change significantly during the process of transferring the battery 01 to be welded from the battery clamp to the corresponding clamping tool, which is beneficial to improving the fitting quality between the shell 012 and the top cover 011.

[0162] In the process of transferring the battery 01 to be welded from the battery fixture to the corresponding clamping tool, the battery fixture and the corresponding clamping tool can be first used to clamp the battery 01 to be welded together. In this case, the battery fixture clamps both the shell 012 and the top cover 011, and the clamping tool also clamps both the shell 012 and the top cover 011. Then the battery fixture releases the battery 01 to be welded, so that the clamping tool clamps the battery 01 to be welded alone. In this case, the clamping tool clamps both the shell 012 and the top cover 011. In this way, in the process of transferring the battery 01 to be welded from the battery fixture to the corresponding clamping tool, the relative positions of the top cover 011 and the shell 012 will not change significantly.

[0163] In some embodiments of the present disclosure, when the clamping tool clamps the battery 01 to be welded, the thickness direction of the top cover 011 is consistent with the vertical direction g, and the opening faces upward. This is more convenient to implement and has lower costs.

[0164] The embodiments of the present disclosure are described below in conjunction with a specific conveying module and a processing module.

[0165] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The battery top cover welding system includes a first conveying module 1 and a cleaning processing submodule. The cleaning processing submodule is arranged at the output end of the first conveying module 1 so as to be able to clean the welding wire of the battery 01 to be welded conveyed by the first conveying module 1.

[0166] The first conveying module 1 in the embodiment of the present disclosure refers to a conveying module of the battery top cover welding system, that is, the battery top cover welding system may include several conveying modules, which may be one or more. The first conveying module 1 is one of the several conveying modules, and the same applies to the second conveying module 3 and the third conveying module 5 mentioned later.

[0167] The welding lines of the battery 01 to be welded in the embodiment of the present disclosure have the same meaning as those generally understood by those skilled in the art of the present disclosure, including the portion of the top cover 011 for welding to the shell 012 and the portion of the shell 012 for welding to the top cover 011. Taking the shell 012 as an example, the welding lines of the shell 012 are the edges of the opening, and extend along the circumference of the opening to form a peripheral structure. For square shell batteries, the long side welding lines of the shell 012 are the portions of the welding lines of the shell 012 that extend along the length direction of the battery 01 to be welded, and the short side welding lines of the top cover 011 are the portions of the welding lines of the shell 012 that extend along the width direction of the battery 01 to be welded. There are two long side welding lines of the shell 012, and they are arranged oppositely along the width direction of the battery 01 to be welded. There are two short side welding lines of the shell 012, and they are arranged oppositely along the length direction of the battery 01 to be welded. The two long side welding lines and the two short side welding lines together enclose a closed rectangular structure. The long side welding line of the top cover 011 is the portion of the welding line of the top cover 011 corresponding to the long side welding line of the shell 012 , and the short side welding line of the top cover 011 is the portion of the welding line of the top cover 011 corresponding to the short side welding line of the shell 012 .

[0168] The cleaning processing submodule in the disclosed embodiment can process the batteries 01 to be welded conveyed by the first conveying module 1, that is, the cleaning processing submodule can process the batteries 01 to be welded conveyed by the battery clamp of the first conveying module 1. The battery clamp of the first conveying module 1 remains in a clamped state and moves under the drive of the corresponding power mechanism to convey the batteries. The pressing processing submodule 4 described later can process the batteries 01 to be welded conveyed by the second conveying module 3, and the spot welding processing submodule 6 can process the batteries 01 to be welded conveyed by the third conveying module 5 in the same manner.

[0169] By providing a cleaning submodule, the cleaning submodule cleans the welding wire, which is beneficial to improving the welding quality between the top cover 011 and the shell 012. The first conveying module 1 simultaneously conveys the top cover 011 and the shell 012 to the cleaning submodule, so that the cleaning submodule can clean the top cover 011 and the shell 012 together, which is beneficial to improving production efficiency.

[0170] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first conveying module 1 includes a first battery clamp 11, and the first battery clamp 11 includes a first insert 1111. When the first battery clamp 11 clamps the battery 01 to be welded, the opening of the top cover 011 and the shell 012 has a first gap in the thickness direction of the top cover 011, and the first insert 1111 extends into the first gap and cooperates with the first gap.

[0171] The first battery clamp 11 in the embodiment of the present disclosure refers to the battery clamp of the first conveyor module 1. The second battery clamp 31 and the third battery clamp 51 mentioned below are similar. The second battery clamp 31 refers to the battery clamp of the second conveyor module 3, and the third battery clamp 51 refers to the battery clamp of the third conveyor module 5.

[0172] In the embodiment of the present disclosure, the first insert 1111 extends into the first gap and cooperates with the first gap, which means that the first insert 1111 is supported between the top cover 011 and the edge of the opening along the thickness direction of the top cover 011. The same applies to the second insert described below.

[0173] By setting the first insert 1111, the first insert 1111 is inserted between the top cover 011 and the shell 012, so that a certain distance can be maintained between the top cover 011 and the shell 012, and the welding wires of the top cover 011 and the shell 012 can be better exposed to the outside, which is convenient for the cleaning processing submodule to clean the welding wires.

[0174] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 includes two oppositely arranged conveying clamping arms 02, which together form a clamping space to clamp the outer surface of the battery 01 to be welded; the first insert 1111 is a protrusion formed on the surface of one of the two conveying clamping arms 02 facing the other, and the first insert 1111 is fixed to the corresponding conveying clamping arm 02, and extends into the first interval along the direction of the protrusion relative to the corresponding conveying clamping arm 02.

[0175] The conveying clamping arm 02 corresponding to the first insert 1111 in the embodiment of the present disclosure is the conveying clamping arm 02 formed with the first insert 1111. It can be understood that the direction in which the first insert 1111 protrudes relative to the corresponding conveying clamping arm 02 forms an angle with the surface of the conveying clamping arm 02 on which the first insert 1111 is formed, and is generally perpendicular to the surface of the conveying clamping arm 02 on which the first insert 1111 is formed, that is, the direction in which the first insert 1111 protrudes relative to the corresponding conveying clamping arm 02 is parallel to the first direction a.

[0176] By arranging the first insert 1111 on the conveying clamping arm 02 and extending the first insert 1111 into the first gap along the direction of the protrusion of the corresponding conveying clamping arm 02, the structure of the first battery clamp 11 is simpler and the processing and manufacturing is more convenient.

[0177] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 includes two relatively arranged conveying clamping arms 02, and the two conveying clamping arms 02 together form a clamping space to clamp the outer surface of the battery to be welded 01; when the first battery clamp 11 clamps the battery to be welded 01, the arrangement direction of the two conveying clamping arms 02 of the first battery clamp 11 is consistent with the length direction of the battery to be welded 01; the first conveying module 1 also includes a first power mechanism, which can drive the first battery clamp 11 to move along the arrangement direction of the two conveying clamping arms 02, so that the long side cleaning module moves along the long side welding line of the battery to be welded 01 relative to the battery to be welded 01 to clean the long side welding line.

[0178] The first power mechanism in the disclosed embodiment refers to the power mechanism of the first conveying module 1. It is understood that the first battery clamp 11 is disposed at the output end of the first power mechanism, enabling the first power mechanism to drive the first battery clamp 11 to move, causing the first battery clamp 11 to convey the battery 01 to be welded. A cleaning submodule is disposed at the output end of the first conveying module 1 to clean the welding wires of the battery 01 to be welded conveyed by the first battery clamp 11.

[0179] The first power mechanism in the embodiment of the present disclosure can drive the first battery clamp 11 to move along the arrangement direction of the two conveying clamping arms 02, that is, when the first battery clamp 11 clamps the battery to be welded 01, the first battery clamp 11 conveys the battery to be welded 01 along the length direction of the battery to be welded 01, so that the long side cleaning module and the battery to be welded 01 move relative to each other in the length direction of the battery to be welded 01, and then the long side cleaning module moves along the long side welding line of the battery to be welded 01 relative to the battery to be welded 01, so as to clean the long side welding line.

[0180] For ease of description, the conveying clamping arms 02 of the first battery clamp 11 in the disclosed embodiment are referred to as short-side clamping arms 111. The two short-side clamping arms 111 are driven by the short-side clamping cylinder 113 to move closer to or farther from each other to clamp or release the battery 01 to be welded.

[0181] By aligning the arrangement direction of the two conveying clamping arms 02 with the length direction of the battery to be welded 01, that is, the two conveying clamping arms 02 clamp the short side of the battery to be welded 01, and the two conveying clamping arms 02 are located on opposite sides of the battery to be welded 01 along the length direction of the battery to be welded 01, and the conveying clamping arms 02 are not located on the side of the long side welding line away from the shell 012 in the width direction of the battery to be welded 01, the long side welding line of the battery to be welded 01 can be better exposed to the outside, and the long side welding line is not easily blocked by the first battery clamp 11 in the width direction of the battery to be welded 01, so that the long side cleaning module can better clean the long side welding line. The first power mechanism drives the first battery clamp 11 to move along the arrangement direction of the two conveying clamping arms 02, so that the long side cleaning module can move along the long side welding line of the battery to be welded 01 relative to the battery to be welded 01, which is conducive to improving the cleaning effect. In some embodiments of the present disclosure, the long side cleaning module can be an ultrasonic air knife.

[0182] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 also includes two relatively large-surface clamping arms 112, which together form a clamping space to clamp the outer surface of the battery 01 to be welded; when the first battery clamp 11 clamps the battery to be welded, the two large-surface clamping arms 112 are both located on the side of the opening close to the inside of the shell 012 in the axial direction of the opening, and the relative arrangement direction is consistent with the width direction of the battery 01 to be welded.

[0183] When the first battery clamp 11 clamps the battery to be welded, the two large-surface clamping arms 112 are relatively arranged in the width direction of the battery to be welded 01, that is, the two large-surface clamping arms 112 clamp the outer surface of the battery to be welded 01 along the width direction of the battery to be welded 01. Along the width direction of the battery to be welded 01, the two large-surface clamping arms 112 are respectively located on the opposite sides of the battery to be welded 01, so that the battery to be welded 01 is clamped between the two large-surface clamping arms 112, which is beneficial to improve the stability of the first battery clamp 11 in clamping the battery to be welded 01. When the first battery clamp 11 clamps the battery to be welded, the two large-surface clamping arms 112 are both located on the side of the opening of the shell 012 close to the inside of the shell 012. The large-surface clamping arms 112 are not opposite to the long-side welding wire in the width direction of the battery to be welded 01. The large-surface clamping arms 112 clamp the shell 012, which is not easy to block the long-side welding wire of the battery to be welded 01, which is conducive to better cleaning of the long-side welding wire.

[0184] In some embodiments of the present disclosure, referring to Figures 3, 4, and 5, each of the two large-surface clamping arms 112 includes at least two large-surface clamping arms. The large-surface clamping arms of the two large-surface clamping arms 112 are arranged in a one-to-one correspondence, and the corresponding large-surface clamping arms are arranged opposite each other. The corresponding large-surface clamping arms together form a clamping space to clamp the outer surface of the battery 01 to be welded. When clamping the battery to be welded, the corresponding large-surface clamping arms are arranged opposite each other in the width direction of the battery 01 to be welded. At least two large-surface clamping arms belonging to the same large-surface clamping arm 112 are arranged along the length direction of the battery 01 to be welded. In this way, when the large-surface clamping arm 112 clamps the battery 01 to be welded, the multiple large-surface clamping arms are arranged along the length direction of the battery 01 to be welded, which facilitates a more stable clamping of the battery 01 to be welded. In some embodiments of the present disclosure, each of the two large-surface clamping arms 112 can include two large-surface clamping arms. In some embodiments of the present disclosure, two large-surface sub-clamping arms belonging to the same large-surface clamping arm 112 can respectively clamp the two ends of the battery to be welded 01 in the length direction.

[0185] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 also includes a large-surface clamping cylinder 114, which is used to drive the two large-surface clamping arms 112 to move closer to or away from each other to clamp or release the battery 01 to be welded.

[0186] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The first battery clamp 11 also includes an upper and lower cylinder 115 for a large-surface clamping arm. The upper and lower cylinders 115 for the large-surface clamping arm are used to drive the large-surface clamping arm 112 to move in the vertical direction g, so that the large-surface clamping arm 112 can rise relative to the short-side clamping arm 111 to clamp the battery 01 to be welded, and can descend while clamping the battery 01 to be welded, so that the battery 01 to be welded falls between the two short-side clamping arms 111, so that the short-side clamping arms 111 can clamp the battery 01 to be welded. Specifically, the two short-side clamping arms 111 are first opened, and the large-surface clamping arms 112 are raised to clamp the battery 01 to be welded. Then, the large-surface clamping arms 112 are lowered while clamping the battery 01 to be welded, so that the battery 01 to be welded is lowered between the two short-side clamping arms 111. Then, the short-side clamping arms 111 are retracted to clamp the battery 01 to be welded. In some embodiments of the present disclosure, an external device can clamp the battery 01 to be welded along its width, and the large-surface clamping arms 112 grab the battery 01 to be welded from the external device.

[0187] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The cleaning processing sub-module includes a cleaning clamping tool. When the cleaning clamping tool clamps the battery to be welded 01, the top cover 011 is opposite to the opening of the shell 012; the cleaner of the cleaning processing sub-module is movably connected to the cleaning clamping tool, so that when the cleaning clamping tool clamps the battery to be welded 01, the cleaner of the cleaning processing sub-module can move along the welding line of the battery to be welded 01 to synchronously clean the top cover 011 and the shell 012.

[0188] By ensuring that the top cover 011 and the opening of the shell 012 are facing each other when the cleaning clamping tool clamps the battery 01 to be welded, the top cover 011 and the shell 012 can be cleaned synchronously while the cleaner of the cleaning processing submodule moves along the welding line of the battery 01 to be welded, which is beneficial to improving the cleaning efficiency.

[0189] In some embodiments of the present disclosure, referring to Figures 3, 4, and 5, the cleaning clamping tool includes two cleaning clamping arms 21 arranged opposite each other along a second direction b. The two cleaning clamping arms together form a clamping space to clamp the outer surface of the battery 01 to be welded. When the cleaning clamping tool clamps the battery 01 to be welded, the second direction b is perpendicular to the axial direction of the opening, such as being consistent with the width or length direction of the battery 01 to be welded. The two cleaning clamping arms 21 are both arranged across the top cover 011 and the shell 012 of the battery 01 to be welded to clamp both the top cover 011 and the shell 012 along the second direction b. In this way, the structure of the cleaning clamping tool is relatively simple, and the clamping effect is relatively stable.

[0190] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The cleaning and clamping tool includes a second insert. When the cleaning and clamping tool clamps the battery 01 to be welded, the top cover 011 and the opening 012 have a second gap in the thickness direction of the top cover 011. The second insert extends into the second gap and cooperates with the second gap.

[0191] By setting a second insertion piece, the second insertion piece is inserted between the top cover 011 and the shell 012, so that a certain distance can be maintained between the top cover 011 and the shell 012, and the welding wires of the top cover 011 and the shell 012 can be better exposed to the outside, which is convenient for the cleaning processing submodule to clean the welding wires.

[0192] In some embodiments of the present disclosure, referring to Figures 3, 4 and 5, the second extending member is a protrusion formed on the surface of one of the two cleaning clamping arms 21 facing the other. The second extending member is fixed to the corresponding cleaning clamping arm 21 and extends into the second gap along the direction of the protrusion relative to the corresponding cleaning clamping arm 21.

[0193] By arranging the second insertion piece on the cleaning clamping arm 21 and extending the second insertion piece into the second gap along the direction of the protrusion of the corresponding cleaning clamping arm 21, the cleaning clamping fixture structure is simpler and the processing and manufacturing is more convenient.

[0194] In some embodiments of the present disclosure, please refer to Figures 3, 4 and 5. The cleaning processing sub-module includes a short-side cleaning processing sub-module 2; the short-side cleaning processing sub-module 2 includes a short-side cleaning clamping tool. When the short-side cleaning clamping tool clamps the battery to be welded 01, the arrangement direction of the two cleaning clamping arms 21 of the short-side cleaning clamping tool is consistent with the width direction of the battery to be welded 01.

[0195] The short-edge cleaning clamping fixture in the disclosed embodiment is the clamping fixture of the short-edge cleaning processing submodule 2. When clamped by the short-edge cleaning clamping fixture, the short-edge cleaning clamping fixture is held in a certain position relative to the processing unit of the short-edge cleaning clamping fixture, namely the short-edge cleaner 22. This allows the battery 01 to be welded to be held in a certain position relative to the short-edge cleaner 22, so that the short-edge cleaner 22 can clean the short-edge welding wire of the battery 01 to be welded. For example, the short-edge cleaner 22 can be an ultrasonic air knife or the like.

[0196] By having two cleaning clamping arms 21 clamp the outer surface of the battery 01 to be welded along the width direction of the battery 01 to be welded, and both cleaning clamping arms 21 are arranged across the top cover 011 and the shell 012 of the battery 01 to be welded to maintain the relative position of the top cover 011 and the shell 012, the structure of the battery clamp is relatively simple. The battery 01 to be welded can be clamped with fewer clamping arms, and the clamping effect on the battery 01 to be welded is relatively stable. Moreover, the two cleaning clamping arms 21 clamp the outer surface of the battery 01 to be welded along the width direction of the battery 01 to be welded. The two cleaning clamping arms 21 will not block the short side welding lines of the top cover 011 and the shell 012, which facilitates the cleaning of the short side cleaning module. In addition, when the short-side cleaning clamping tool clamps the battery to be welded 01 to the processing module, the top cover 011 and the opening of the shell 012 are in a relative state, which makes it convenient for the short-side cleaning processing sub-module 2 to clean the top cover 011 of the shell 012 together, and the cleaning process is more convenient.

[0197] It is understandable that, since the short-side clamping arm 111 is used to clamp the short side of the battery 01 to be welded, and the cleaning clamping arm 21 clamps the battery 01 to be welded in the width direction of the battery 01 to be welded, the conveying clamping arm 02 is not likely to interfere with the cleaning clamping arm 21, so that the first battery clamp 11 and the cleaning clamping tool can conveniently clamp the battery 01 to be welded together. In addition, since the large-surface clamping arm 112 is located on the side of the opening close to the inside of the shell 012 in the axial direction, and the cleaning clamping arm 21 is arranged across the top cover 011 and the shell 012 of the battery 01 to be welded, the cleaning clamping arm 21 can be conveniently staggered with the large-surface clamping arm 112, so that the first battery clamp 11 and the cleaning clamping tool can conveniently clamp the battery 01 to be welded together. In some embodiments of the present disclosure, when the first battery clamp 11 and the cleaning clamping tooling jointly clamp the battery to be welded 01 , the large-surface clamping arm 112 and the cleaning clamping arm 21 can be arranged along the length direction of the battery to be welded 01 .

[0198] In some embodiments of the present disclosure, referring to Figures 3, 4, and 5, each of the two cleaning clamping arms 21 includes at least two cleaning sub-arms. The cleaning sub-arms of the two cleaning clamping arms 21 are arranged in a one-to-one correspondence, and the corresponding cleaning sub-arms are arranged opposite each other. The corresponding cleaning sub-arms together form a clamping space to clamp the outer surface of the battery 01 to be welded. When clamping the battery to be welded, the corresponding cleaning sub-arms are arranged in the direction of relative orientation along the width of the battery 01 to be welded. At least two cleaning sub-arms belonging to the same cleaning clamping arm 21 are arranged along the length of the battery 01 to be welded. In this way, when the cleaning clamping arm 21 clamps the battery 01 to be welded, the multiple cleaning sub-arms are arranged along the length of the battery 01 to be welded, which facilitates a more stable clamping of the battery 01 to be welded. In some embodiments of the present disclosure, each of the two cleaning clamping arms 21 can include two cleaning sub-arms. In some embodiments of the present disclosure, the two cleaning sub-arms belonging to the same cleaning clamping arm 21 can be used to clamp the battery 01 at both ends of the length direction.

[0199] In some embodiments of the present disclosure, please refer to Figures 3, 6, 7 and 8. The battery top cover welding system includes a second conveying module 3, and the short edge cleaning processing submodule 2 is arranged at the input end of the second conveying module 3, so that the second conveying module 3 can convey the battery 01 to be welded by the short edge cleaning processing submodule 2; the two conveying clamping arms 02 of the battery clamp of the second conveying module 3 are arranged relative to each other along the second direction b, and the two conveying clamping arms 02 jointly form a clamping space to clamp the outer surface of the battery 01 to be welded; the two cleaning clamping arms 21 are used to clamp the third part of the battery 01 to be welded, and the two conveying clamping arms 02 of the second conveying module 3 are used to clamp the fourth part of the battery 01 to be welded, and the third part and the fourth part are arranged along the length direction of the battery 01 to be welded, so that the cleaning clamping arms 21 and the conveying clamping arms 02 of the second conveying module 3 can jointly clamp the outer surface of the battery 01 to be welded.

[0200] The second conveying module 3 in the embodiment of the present disclosure can convey the battery 01 to be welded by the short-side cleaning and processing sub-module 2, which means that the battery clamp of the second conveying module 3 can grab the battery from the cleaning and processing sub-module and be driven by the power mechanism of the second conveying module 3 to move while maintaining the grabbing state, thereby conveying the battery.

[0201] The two conveying clamping arms 02 of the battery clamp of the second conveying module 3 in the embodiment of the present disclosure are arranged relative to each other along the second direction b, that is, when the battery clamp of the second conveying module 3 clamps the battery to be welded, the arrangement direction of the two conveying clamping arms 02 of the battery clamp of the second conveying module 3 is consistent with the width direction of the battery to be welded 01, and the battery to be welded 01 is clamped along the width direction.

[0202] By arranging the two conveying clamping arms 02 of the battery clamp of the second conveying module 3 relative to each other along the second direction b to jointly form a clamping space for clamping the outer surface of the battery to be welded 01, the two conveying clamping arms 02 can clamp the outer surface of the battery to be welded 01 along the width direction of the battery to be welded 01, and the clamping effect is relatively stable. By enabling the cleaning clamping arm 21 and the conveying clamping arm 02 of the second conveying module 3 to jointly clamp the outer surface of the battery to be welded 01, during the process of transferring the battery to be welded 01 from the cleaning clamping arm 21 to the conveying clamping arm 02 of the second conveying module 3, the conveying clamping arm 02 of the second conveying module 3 can clamp the battery to be welded 01 more accurately and firmly, and the relative position of the top cover 011 and the shell 012 is not likely to change significantly. Moreover, by arranging the third part and the fourth part along the length direction of the battery to be welded 01, the cleaning clamping arm 21 and the conveying clamping arm 02 of the second conveying module 3 can easily have a larger contact area with the battery to be welded 01 when clamping the battery to be welded 01, which is beneficial to improving the stability of the clamping.

[0203] For ease of description, the conveying clamping arm 02 of the second battery clamp 31 is hereinafter referred to as the press-fitting conveying clamping arm 311. In some embodiments of the present disclosure, each press-fitting conveying clamping arm 311 includes at least one press-fitting conveying sub-clamping arm. The press-fitting conveying sub-clamping arms of the two press-fitting conveying clamping arms 311 are arranged in a one-to-one correspondence. The corresponding press-fitting conveying sub-clamping arms are arranged relative to each other to jointly form a clamping space for clamping the outer surface of the battery 01 to be welded. When clamping the battery to be welded, the corresponding press-fitting conveying sub-clamping arms are arranged relative to each other in the width direction of the battery 01 to be welded. At least two press-fitting conveying sub-clamping arms belonging to the same press-fitting conveying clamping arm 311 are arranged along the length direction. In this way, when the press-fitting conveying clamping arm 311 clamps the battery 01 to be welded, the multiple press-fitting conveying sub-clamping arms are arranged along the length direction of the battery 01 to be welded, which is conducive to more stable clamping of the battery 01 to be welded. In some embodiments of the present disclosure, both press-fitting conveying clamping arms 311 can include two press-fitting conveying sub-clamping arms. In some embodiments of the present disclosure, two press-fitting conveying sub-clamping arms belonging to the same press-fitting conveying clamping arm 311 can respectively clamp the two ends of the battery to be welded 01 in the length direction.

[0204] In some embodiments of the present disclosure, referring to Figures 3, 6, 7, and 8, two cleaning sub-clamping arms belonging to the same cleaning clamping arm 21 can be used to clamp the battery 01 to be welded at both ends along the length of the battery 01, with the press-fitting and conveying clamping arm 311 located between the two cleaning sub-clamping arms. In this way, the third and fourth portions are arranged along the length of the battery 01 to be welded, and the cleaning clamping arm 21 and the press-fitting and conveying clamping arm 311 can jointly clamp the outer surface of the battery 01 to be welded.

[0205] In some embodiments of the present disclosure, please refer to Figures 3, 6, 7 and 8. The battery top cover welding system includes a second conveying module 3 and a pressing processing submodule 4. The pressing processing submodule 4 is arranged at the output end of the second conveying module 3 so that the battery 01 to be welded conveyed by the second conveying module 3 can be processed; the pressing processing submodule 4 includes a pressure member 41, which is used to apply a force toward the shell 012 to the top cover 011 along the height direction of the battery 01 to be welded, so as to press the battery 01 to be welded.

[0206] The press-fitting in the embodiment of the present disclosure has the same meaning as generally understood by technicians in the technical field of the present disclosure, that is, when the top cover 011 is facing the shell 012, a force is applied to the top cover 011 toward the shell 012 along the height direction of the battery 01 to be welded, so that the top cover 011 is embedded in the opening.

[0207] By providing the second conveying module 3 , the top cover 011 and the shell 012 can be synchronously conveyed to the press-fitting processing submodule 4 , so that the press-fitting processing submodule 4 press-fits the battery to be welded 01 , which is beneficial to improving production efficiency.

[0208] In some embodiments of the present disclosure, please refer to Figures 3, 6, 7 and 8. The clamping tooling of the press-fitting processing submodule 4 includes two first press-fitting clamping arms 42 arranged relatively to each other along the third direction c, the two first press-fitting clamping arms 42 jointly form a clamping space to clamp the outer surface of the battery to be welded 01, and two second press-fitting clamping arms 43 arranged relatively to each other along the fourth direction d, the two second press-fitting clamping arms 43 jointly form a clamping space to clamp the outer surface of the battery to be welded 01. When the clamping tooling clamps the battery to be welded 01, the top cover 011 is directly opposite to the opening of the shell 012, the third direction c and the fourth direction d are respectively consistent with the length direction and width direction of the battery to be welded 01, the two first press-fitting clamping arms 42 and the two second press-fitting clamping arms 43 are both arranged across the top cover 011 and the shell 012 of the battery to be welded 01 to clamp the top cover 011 and the shell 012 along the third direction c and the fourth direction d, respectively.

[0209] By having the first press-fitting clamping arms 42 and the second press-fitting clamping arms 43 clamp the outer surface of the battery 01 to be welded along its length and width, respectively, and both the first press-fitting clamping arms 42 and the second press-fitting clamping arms 43 being arranged across the top cover 011 and the housing 012 of the battery 01 to be welded, the clamping tooling structure of the press-fitting processing submodule 4 is simplified. With fewer clamping arms, the battery 01 to be welded can be clamped, and the clamping effect on the battery 01 to be welded is more stable. Moreover, the battery 01 to be welded is positioned in both the length and width directions, making the positioning of the battery 01 to be welded more precise and stable, facilitating the press-fitting process.

[0210] In some embodiments of the present disclosure, referring to Figures 3, 6, 7, and 8, the first press-fit clamping arm 42 and the second press-fit clamping arm 43 can be made of silicone material. This helps to reduce damage to the outer surface of the battery 01 to be welded caused by the first press-fit clamping arm 42 and the second press-fit clamping arm 43 during the press-fitting process.

[0211] In some embodiments of the present disclosure, referring to Figures 3, 6, 7, and 8, the press-fitting processing submodule 4 further includes a fifth frame 44. The two first press-fitting clamping arms 42 are slidably connected to the fifth frame 44 along a third direction c, enabling them to move toward or away from each other in the third direction c to clamp or release the battery 01 to be welded. The two second press-fitting clamping arms 43 are slidably connected to the fifth frame 44 along a fourth direction d, enabling them to move toward or away from each other in the fourth direction d to clamp or release the battery 01 to be welded. This results in a relatively simple structure and is relatively easy to implement.

[0212] In some embodiments of the present disclosure, Figures 6 and 9, the battery top cover welding system includes a third conveying module 5, and the pressing processing submodule 4 is arranged at the input end of the third conveying module 5, so that the third conveying module 5 can convey the battery 01 to be welded by the pressing processing submodule 4; the battery clamp of the third conveying module 5 includes a pressing member 511, and the pressing member 511 is used to apply a force to the top cover 011 toward the shell 012 to keep the top cover 011 in the position after pressing.

[0213] The pressing member 511 in the embodiment of the present disclosure is used to apply a force to the top cover 011 toward the shell 012, so that the top cover 011 remains in the opening, that is, after press-fitting, the top cover 011 is embedded in the opening, and the pressing member 511 applies a force to the top cover 011 toward the shell 012, so that the top cover 011 remains in a position embedded in the opening during the process of the third conveying module 5 conveying the battery 01 to be welded.

[0214] By providing the pressing member 511, the pressing member 511 applies a force to the top cover 011 toward the shell 012, which is beneficial to prevent the relative positions of the top cover 011 and the shell 012 in the width direction of the top cover 011 from changing significantly during the process of transporting the battery 01 to be welded after the press-fitting process, thereby facilitating subsequent processing of the battery 01 to be welded.

[0215] In some embodiments of the present disclosure, when the two conveying clamping arms 02 of the battery clamp of the third conveying module 5 clamp the battery to be welded, the relative orientation of the two conveying clamping arms 02 is aligned with the width direction of the battery to be welded 01. In this way, the battery clamp of the third conveying module 5 is unlikely to interfere with the clamping tooling of the press-fitting processing submodule 4.

[0216] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the battery clamp of the third conveying module 5 includes two conveying clamping arms 02, the two conveying clamping arms 02 are arranged opposite to each other, and the two conveying clamping arms 02 jointly form a clamping space to clamp the outer surface of the battery to be welded 01, and the pressure piece 511 is slidably connected to the conveying clamping arms 02. When the two conveying clamping arms 02 clamp the outer surface of the battery to be welded 01, the direction in which the two conveying clamping arms 02 are relatively arranged is perpendicular to the axial direction of the opening of the shell 012, such as consistent with the width direction or length direction of the battery to be welded 01, and the direction in which the pressure piece 511 slides relative to the conveying clamping arms 02 is consistent with the height direction of the battery to be welded 01, so that the pressure piece 511 can apply a force toward the shell 012 to the top cover 011.

[0217] The battery clamp of the third conveying module 5 in the embodiment of the present disclosure is the third battery clamp 51 . For the convenience of description, the conveying clamping arm 02 of the third battery clamp 51 is referred to as the spot welding conveying clamping arm 512 .

[0218] By arranging the pressing member 511 on the conveying clamping arm 02 , the pressing member 511 is slidably connected to the conveying clamping arm 02 , which is conducive to making the structure more compact.

[0219] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the third battery clamp 51 also includes a pressure member driving cylinder 55, which is used to drive the pressure member 511 to slide relative to the conveying clamping arm 02, so that the pressure member 511 can apply a force to the top cover 011 toward the shell 012.

[0220] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the third battery clamp 51 also includes a spot welding conveying clamping cylinder 56, which is used to drive the two spot welding conveying clamping arms 512 to move closer to and away from each other to clamp or release the battery 01 to be welded.

[0221] In some embodiments of the present disclosure, as shown in Figures 6, 9, 16, and 17, each transport clamping arm 02 is provided with a pressing member 511. This structural form is conducive to better maintaining the relative position of the top cover 011 and the housing 012. In some embodiments of the present disclosure, each transport clamping arm 02 may include at least two transport sub-clamping arms, and on this basis, each transport sub-clamping arm may also be provided with a pressing member 511. This is conducive to better maintaining the relative position of the top cover 011 and the housing 012.

[0222] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the battery top cover welding system includes a third conveying module 5 and a pressing processing submodule 4, and the pressing processing submodule 4 is arranged at the input end of the third conveying module 5, so that the third conveying module 5 can convey the battery 01 to be welded by the pressing processing submodule 4; the battery clamp of the third conveying module 5 includes a first carrier 513, and the first carrier 513 is used to support the side of the shell 012 away from the top cover 011, so that the pressure member 41 can press the battery 01 to be welded.

[0223] By providing support for the first carrier 513 of the battery clamp of the third conveyor module 5, the pressure member 41 can press-fit the battery 01 to be welded, thereby improving the utilization rate of the battery clamp of the third conveyor module 5 and simplifying the structure. Furthermore, providing support for the first carrier 513 of the battery clamp of the third conveyor module 5 helps reduce the time taken for a single cycle of the third conveyor module 5, and appropriately increases the time taken for a single cycle of the third conveyor module 5, thereby ensuring a consistent production rhythm and improving production efficiency.

[0224] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the second conveying module 3 may first convey the battery to be welded 01 to the pressing processing sub-module 4, the clamping tool of the pressing processing sub-module 4 clamps the battery to be welded 01, positions the battery to be welded 01, and then the first carrier 513 supports the battery to be welded 01, so that the pressure member 41 presses the battery to be welded 01.

[0225] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the battery top cover welding system includes a third conveying module 5 and a spot welding processing submodule 6, and the spot welding processing submodule 6 is arranged at the output end of the third conveying module 5, so that the spot welding processing submodule 6 can spot weld the top cover 011 conveyed by the third conveying module 5 with the shell 012.

[0226] The top cover 011 and the shell 012 are synchronously conveyed to the spot welding processing submodule 6 through the third conveying module 5 , so that the top cover 011 and the shell 012 are spot welded, which is beneficial to improving production efficiency.

[0227] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the clamping tooling of the spot welding processing submodule 6 includes a first reference platform 611, and the first reference platform 611 is used to apply a force toward the shell 012 to the top cover 011 along the height direction of the battery to be welded 01, so that the top cover 011 remains in the position after pressing, so that the spot welding processing submodule 6 can spot weld the battery to be welded 01; when the battery clamp of the third conveying module 5 clamps the battery to be welded 01, the top cover 011 is at least partially exposed outside the clamping cavity of the battery clamp, so that the first reference platform 611 can abut against the top cover 011.

[0228] The relative posture of the reference platform in the embodiment of the present disclosure relative to the processing unit of the spot welding processing submodule 6, namely the spot welding welder 63, remains unchanged. In this way, the battery 01 to be welded is fitted with the first reference platform 611, and the battery 01 to be welded is in a suitable posture relative to the first reference platform 611. The posture of the battery 01 to be welded relative to the spot welding welder 63 can be better guaranteed, which facilitates welding by the spot welding welder 63.

[0229] The first reference platform 611 effectively maintains the relative position of the top cover 011 and the housing 012, thereby improving the quality of spot welding. When the battery fixture of the third conveying module 5 holds the battery 01 to be welded, the first reference platform 611 abuts against the top cover 011, minimizing the relative position of the top cover 011 and the housing 012 from significant changes when the battery 01 to be welded is transferred from the third conveying module 5 to the clamping fixture of the spot welding processing submodule 6. This improves the quality of spot welding.

[0230] In some embodiments of the present disclosure, as shown in Figures 6, 9, 16, and 17, when the first base 611 abuts against the top cover 011, the first base 611 shields the battery terminals, thereby reducing damage to the terminals during spot welding.

[0231] In some embodiments of the present disclosure, Figures 6, 9, 16 and 17, the clamping tool of the spot welding processing submodule 6 includes two first spot welding clamping arms 612 arranged relatively to each other along the fifth direction e, and the two first spot welding clamping arms 612 jointly form a clamping space to clamp the outer surface of the battery to be welded 01, and two second spot welding clamping arms arranged relatively to each other along the sixth direction f, and the two second spot welding clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded 01. When the clamping tool clamps the battery to be welded 01, the top cover 011 is opposite to the opening of the shell 012, and the fifth direction e and the sixth direction f are respectively consistent with the length direction and width direction of the battery to be welded 01.

[0232] For the convenience of description, the clamping fixture of the spot welding processing submodule 6 in the embodiment of the present disclosure is referred to as a spot welding clamping fixture 61 .

[0233] By having the first spot welding clamping arm 612 and the second spot welding clamping arm clamp the outer surface of the battery 01 to be welded along the length and width directions of the battery 01 respectively, the battery 01 to be welded can be accurately and firmly positioned in the length and width directions, which is beneficial to improving the spot welding quality.

[0234] During the process of transferring the battery to be welded 01 from the third conveying module 5 to the spot welding clamping tooling 61, the reference platform can be firstly fitted with the top cover 011 of the battery to be welded 01 when the third battery clamp 51 clamps the battery to be welded 01, and then the first spot welding clamping arm 612 and the second spot welding clamping arm clamp the battery to be welded 01, and then the third battery clamp 51 releases the battery to be welded 01 to realize the transfer of the battery to be welded 01.

[0235] In some embodiments of the present disclosure, Figures 6, 9, 16, and 17, the spot welding clamping fixture 61 further includes a first spot welding clamping cylinder 613, which is used to drive the two first spot welding clamping arms 612 to move closer to and away from each other to clamp or release the battery to be welded 01. In some embodiments of the present disclosure, the spot welding clamping fixture 61 further includes a second spot welding clamping cylinder 614, which is used to drive the two second spot welding clamping arms to move closer to and away from each other to clamp or release the battery to be welded 01.

[0236] In some embodiments of the present disclosure, Figures 9, 16, 17, and 18, the spot welding processing submodule 6 includes a step detection mechanism 62, and the spot welding processing submodule 6 also includes a first frame. The first frame and the step detection mechanism 62 are relatively fixed, and the spot welding clamping fixture 61 is slidably connected to the first frame so that the step detection mechanism 62 can move along the welding line of the battery 01 to be welded relative to the battery 01 to be welded, so as to perform step detection on the battery 01 to be welded. In some embodiments of the present disclosure, the spot welding clamping fixture 61 can be slidably connected to the first frame in a horizontal direction. In this way, it is more convenient to implement and the structure is relatively simple.

[0237] By sliding the clamping fixture with the first frame, the step detection mechanism 62 can move along the welding line of the battery 01 to be welded relative to the battery 01 to be welded to perform step detection, which is beneficial to improving the accuracy of detection. After the battery 01 to be welded has passed the step detection, spot welding is performed, which is beneficial to improving welding accuracy.

[0238] In some embodiments of the present disclosure, Figures 9, 16, 17 and 18, when the spot welding clamping fixture 61 clamps the battery to be welded 01, the clamping fixture can move relative to the first frame to a position corresponding to the spot welding device 63. During the movement, the step detection mechanism 62 performs step detection on the battery to be welded 01. If the detection is qualified, the clamping fixture moves relative to the first frame to a position corresponding to the spot welding device 63, so that the spot welding device 63 welds the battery to be welded 01. If the detection is unqualified, the spot welding of the battery to be welded 01 is skipped.

[0239] In some embodiments of the present disclosure, as shown in Figures 9, 16, 17, and 18, the spot welder 63 can be fixed relative to the first frame. When the spot welding clamping fixture 61 clamps the battery 01 to be welded, the spot welding clamping fixture 61 can move relative to the first frame to move the spot welding clamping fixture 61 relative to the welding line of the battery 01 to be welded, so as to perform spot welding on multiple positions of the battery 01 to be welded. In some embodiments of the present disclosure, the spot welder 63 can perform welding by emitting light through a galvanometer.

[0240] In some embodiments of the present disclosure, as shown in Figures 19 and 20, the battery top cover welding system further includes a spot welding detector 72 and a spot welding detection conveying mechanism 71. The input end of the spot welding detection conveying mechanism 71 is connected to the spot welding processing submodule 6, and the output end is connected to the spot welding detector 72 to convey the battery 01 to be welded from the spot welding processing submodule 6 to the spot welding detector 72. The spot welding electric detector can inspect the processing quality of the spot welding processing submodule 6 to improve the processing quality.

[0241] In some embodiments of the present disclosure, as shown in Figures 19 and 20 , the spot welding inspection and conveying mechanism 71 includes two inspection clamping arms 711 , which are used to clamp the battery 01 to be welded along its width. In the clamped state, the inspection clamping arms 711 can be moved by a power source, such as a conveyor line, to move from the spot welding processing submodule 6 to the spot welding detector 72 . In this way, the spot welding inspection and conveying mechanism 71 can convey the battery 01 to be welded more stably.

[0242] In some embodiments of the present disclosure, Figures 19 and 20, when the two detection clamping arms 711 clamp the battery to be welded 01, the arrangement direction of the two detection clamping arms 711 is horizontal; the spot welding detection conveying mechanism 71 also includes a bottom supporting member. When the two detection clamping arms 711 clamp the battery to be welded 01, the bottom supporting member is used to support the lower side of the battery to be welded 01 along the vertical direction g. In this way, the spot welding detection conveying mechanism 71 is more stable in conveying the battery to be welded 01. In some embodiments of the present disclosure, the two detection clamping arms 711 can be slidably connected to the bottom supporting member along the arrangement direction so that they can move closer to or farther away from each other to clamp or release the battery to be welded 01. In this way, the structure of the spot welding detection conveying mechanism 71 is relatively simple.

[0243] In some embodiments of the present disclosure, as shown in FIG19 and FIG20 , the spot welding detection conveying mechanism 71 further includes a detection clamping cylinder 712 , which is used to drive two detection clamping arms 711 to move closer to and away from each other to clamp or release the battery 01 to be welded.

[0244] In some embodiments of the present disclosure, Figures 19 and 20, the spot welding processing submodule 6 and the spot welding detector 72 are arranged in a horizontal direction, and the detection clamping arm 711 can move in a horizontal direction under the action of a power, so as to move to a position flush with the spot welding processing submodule 6 and the spot welding detector 72 along the arrangement direction of the spot welding processing submodule 6 and the spot welding detector 72, so as to transport the battery 01 to be welded from the spot welding processing submodule 6 to the spot welding detector 72. In this way, the structure is relatively simple and it is relatively easy to implement. Generally, the detection clamping arm 711 can move in a horizontal direction under the action of a power, so as to move to a position flush with the spot welding welder 63 and the spot welding detector 72 along the arrangement direction of the spot welding welder 63 and the spot welding detector 72, so as to transport the battery 01 to be welded from the spot welding processing submodule 6 to the spot welding detector 72.

[0245] In some embodiments of the present disclosure, as shown in Figures 19 and 20, the spot welding detector 72 is disposed on a side of the spot welding processing submodule 6 that is away from the press-fitting processing submodule 4 in the horizontal direction. This layout is more reasonable and helps to reduce occupied space.

[0246] In some embodiments of the present disclosure, Figures 19 and 20, the spot welding detection conveying mechanism 71 also includes a detection lifting mechanism 82, the first end of the detection lifting mechanism 82 is relatively fixed to the spot welding clamping tool 61 in the vertical direction g, and the second end, that is, the output end, can move in the vertical direction g relative to the first end of the detection lifting mechanism 82, and the detection clamping arm 711 is provided on the output end of the detection lifting mechanism 82, so that when it moves to a position flush with the spot welding processing submodule 6, it can move upward to the position corresponding to the spot welding clamping tool 61 under the driving action of the detection lifting mechanism 82, so as to grab the battery 01 to be welded from the spot welding clamping tool 61. In this way, during the movement of the detection clamping arm 711 in the horizontal direction, the output end of the detection lifting mechanism 82 can be in a lower position, which can better reduce the risk of interference between the detection clamping arm 711 and the detection clamping tool. When the detection clamping arm 711 moves horizontally to a position flush with the spot welding clamping fixture 61, the output end of the detection lifting mechanism 82 lifts the detection clamping arm 711, so that the detection clamping arm 711 grabs the battery 01 to be welded from the spot welding clamping fixture 61.

[0247] In some embodiments of the present disclosure, Figures 19 and 20, when the detection clamping arm 711 transports the battery to be welded 01, the material can be first connected at the spot welding clamping fixture 61, and then the detection lifting mechanism 82 is contracted to drive the detection clamping arm 711 to descend to the fourth horizontal starting position y4 directly below the spot welding clamping fixture 61, and then the detection lifting mechanism 82 remains in a contracted state, and the detection clamping arm 711 moves in the horizontal direction to the spot welding detector 72 and the fourth horizontal end position z4 in sequence, and the detection clamping arm 711 opens at the fourth horizontal end position z4, and the battery to be welded 01 is taken away by the four-axis robot.

[0248] In some embodiments of the present disclosure, Figures 19 and 20, the process of the detection clamping arm 711 conveying the battery 01 to be welded by the spot welding clamping fixture 61 can be referred to Figure 18. First, the detection clamping arm 711 is connected to the material at the spot welding clamping fixture 61, and then the detection lifting mechanism 82 is contracted to drive the detection clamping arm 711 to descend to the fourth horizontal starting position where the spot welding clamping fixture 61 is fully lowered. Then, while the detection lifting mechanism 82 remains in a contracted state, the detection clamping arm 711 moves horizontally to the spot welding detector 72, so that the spot welding detector 72 performs detection, and then continues to move along this direction to the fourth horizontal end position. When the detection clamping arm 711 is in the fourth horizontal end position, the joint manipulator can take the material from the detection clamping arm 711 and convey it to other positions.

[0249] In some embodiments of the present disclosure, Figures 21 and 22, the battery top cover welding system also includes a full welding module and a full welding conveying module. The input end of the full welding conveying module is connected to the spot welding processing sub-module 6, and the output end is connected to the full welding module to convey the battery 01 to be welded from the spot welding processing sub-module 6 to the full welding module.

[0250] By enabling the full welding conveying module to transport the battery 01 to be welded from the spot welding processing submodule 6 to the full welding module, the full welding processing and the spot welding processing of the battery 01 to be welded are integrated into one production line, which is beneficial to improving production efficiency.

[0251] In some embodiments of the present disclosure, Figures 21 and 22, the full welding module includes a full welding clamping tool 81, the full welding clamping tool 81 includes a clamping mechanism and a second supporting member 815, the clamping mechanism includes two full welding clamping arms arranged opposite to each other in a horizontal direction, the two full welding clamping arms together form a clamping space to clamp the outer surface of the battery 01 to be welded, along the direction in which the two full welding clamping arms are relatively arranged, the second supporting member 815 is located between the two full welding clamping arms, and is used to support the battery 01 to be welded located in the two full welding clamping arms along the vertical direction g.

[0252] By making the second supporting member 815 support the battery 01 to be welded, the clamping mechanism clamps the outer surface of the battery 01 to be welded horizontally, so that the battery 01 to be welded can be firmly clamped and accurately positioned, which is conducive to improving the welding quality.

[0253] In some embodiments of the present disclosure, as shown in Figures 21 and 22 , the full weld conveying module includes a spot weld inspection conveying mechanism 71 and a first joint manipulator. The first joint manipulator is used to convey the battery 01 to be welded from the spot weld inspection conveying mechanism 71 to the full weld clamping fixture 81. In some embodiments of the present disclosure, the first joint manipulator can be a four-axis manipulator, etc.

[0254] In some embodiments of the present disclosure, Figures 21 and 22, the first joint manipulator can be horizontally arranged on the side of the spot welding detector 72 away from the spot welding processing sub-module 6, so that the first joint manipulator is not likely to interfere with the spot welding detector 72 during the process of grabbing the battery 01 to be welded from the spot welding detection conveying mechanism 71.

[0255] In some embodiments of the present disclosure, Figures 21 and 22, the spot welding detection and conveying mechanism 71 can convey batteries synchronously with the battery fixture, that is, the time required for the detection clamping arm 711 to move from the spot welding processing sub-module 6 to the first joint manipulator is the same as the time required for the battery fixture to move from one of the corresponding two adjacent processing modules to the other, which is conducive to improving production efficiency.

[0256] In some embodiments of the present disclosure, Figures 21 and 22, the full welding clamping tool 81 also includes a second frame, and two full welding clamping arms are movably connected to the second frame, such as the two full welding clamping arms are slidably connected to the second frame along relatively set directions, so as to be able to clamp or release the battery to be welded 01; the second supporting member 815 is slidably connected to the frame along the vertical direction g, so as to be able to rise to the target position to carry the battery to be welded 01 conveyed by the full welding conveying module, and can drive the battery to be welded 01 to descend between the two full welding clamping arms, so that the two full welding clamping arms clamp the battery to be welded 01.

[0257] By enabling the second carrier 815 to rise or fall relative to the full welding clamping arms, the full welding conveying module is not likely to interfere with the two full welding clamping arms during the process of transferring the battery 01 to be welded from the full welding conveying module to the full welding clamping tooling 81, which is conducive to the smooth transfer of the battery 01 to be welded from the full welding conveying module to the full welding clamping tooling 81.

[0258] For ease of understanding, the process of transferring the battery 01 to be welded from the full welding conveying module to the full welding clamping fixture 81 is explained as follows: the full welding conveying module is not likely to interfere with the two full welding clamping arms. During the process of transferring the battery 01 to be welded from the full welding conveying module to the full welding clamping fixture 81, the second carrier 815 can first rise to the target position, the full welding conveying module releases the battery 01 to be welded, and places the battery 01 to be welded on the second carrier 815. The battery 01 to be welded is separated from the full welding conveying module, and then the second carrier 815 descends, driving the battery 01 to be welded to descend to the two full welding clamping arms. Then, the two full welding clamping arms approach each other to clamp the battery 01 to be welded. During this process, the full welding conveying module does not need to extend into the deep position between the two full welding clamping arms, which is conducive to making the full welding conveying module less likely to interfere with the two full welding clamping arms. In some embodiments of the present disclosure, the full welding clamping tool 81 further includes a carrier lifting cylinder 816, which is used to drive the second carrier 815 to rise or fall relative to the full welding clamping arm.

[0259] In some embodiments of the present disclosure, as shown in Figures 21 and 22 , the upper surface of the second carrier 815 is concave downward to form a mounting groove, which is used to place the battery 01 to be welded. In this way, when the second carrier 815 carries the battery 01 to be welded, the battery 01 to be welded is restrained in the horizontal direction and is not likely to fall over, which facilitates the two fully welded clamping arms to clamp the battery 01 to be welded.

[0260] In some embodiments of the present disclosure, Figures 21 and 22, the full welding module also includes a second reference platform 84 and a lifting mechanism 82. The second reference platform 84 is arranged above the full welding clamping tool 81. The lifting mechanism 82 can move in the vertical direction g relative to the clamping mechanism to apply an upward force to the battery 01 to be welded, so that the upper surface of the battery 01 to be welded extends out of the clamping mechanism and fits with the second reference platform 84.

[0261] The positions of the second reference platform 84 and the full-weld welder 85 in the embodiment of the present invention remain relatively unchanged. In this way, the upper surface of the battery 01 to be welded extends out of the clamping mechanism and fits into the second reference platform 84. With the second reference platform 84 as a reference, the position of the battery 01 to be welded relative to the second reference platform 84 is adjusted, and the position of the battery 01 to be welded relative to the full-weld welder 85 is also adjusted, which facilitates welding by the full-weld welder 85.

[0262] By making the lifting mechanism 82 push the battery 01 to be welded upward, the upper surface of the battery 01 to be welded extends out of the clamping space and fits into the second reference platform 84, and the battery 01 to be welded is accurately positioned in the vertical direction g. In this way, the battery 01 to be welded is positioned in the horizontal direction by the clamping mechanism and in the vertical direction g by the second reference platform 84. The battery 01 to be welded is positioned in multiple directions, and the positioning accuracy is high, which is conducive to improving the welding quality.

[0263] In some embodiments of the present disclosure, please refer to Figures 23 and 24, the full welding module also includes a fourth frame, the fourth frame is relatively fixed to the second reference platform 84, and the full welding clamping tool 81 is slidably connected to the fourth frame in the horizontal direction so that it can move to the positions corresponding to the full welding conveying module and the second reference platform 84 respectively.

[0264] By making the full welding clamping tool 81 slide horizontally relative to the fourth frame, so as to move to the positions corresponding to the full welding conveying module and the second reference platform 84 respectively, there is a large distance between the full welding conveying module and the second reference platform 84. The full welding conveying module is not easily affected by the second reference platform 84 during the process of conveying the battery 01 to be welded to the full welding clamping tool 81, which facilitates the smooth transfer of the battery 01 to be welded from the full welding conveying module to the full welding clamping tool 81.

[0265] In some embodiments of the present disclosure, please refer to Figures 23 and 24, the full welding module also includes a fourth frame, the fourth frame is relatively fixed to the full welding welder 85 of the full welding module, and the full welding clamping tool 81 is slidably connected to the fourth frame in the horizontal direction so that it can move to the positions corresponding to the full welding conveying module and the full welding welder 85 of the full welding module, respectively, so that the full welding welder 85 can perform full welding on the battery 01 to be welded.

[0266] By making the full welding clamping fixture 81 slide horizontally relative to the fourth frame, so as to move to the corresponding positions of the full welding conveying module and the full welding welder 85 respectively, there is a large distance between the full welding conveying module and the full welding welder 85. The full welding conveying module is not easily affected by the full welding welder 85 during the process of conveying the battery 01 to be welded to the full welding clamping fixture 81, which facilitates the smooth transfer of the battery 01 to be welded from the full welding conveying module to the full welding clamping fixture 81.

[0267] In some embodiments of the present disclosure, Figures 21 and 22, the number of clamping mechanisms is at least two, and at least two clamping mechanisms are arranged circumferentially, with the axial direction of the circumferential arrangement being the vertical direction g; when the full welding clamping tool 81 clamps the battery 01 to be welded, the top cover 011 is located on the upper side of the shell 012.

[0268] By using multiple clamping mechanisms to hold the battery 01 to be welded, the battery 01 can be accurately positioned in multiple directions, which helps improve welding quality. Furthermore, when the full-weld clamping fixture 81 holds the battery 01 to be welded, the top cover 011 is located above the housing 012, meaning the weld line is less likely to be obstructed by the clamping mechanisms, facilitating smooth welding.

[0269] In some embodiments of the present disclosure, as shown in Figures 21 and 22 , there are at least two clamping mechanisms, each clamping the battery 01 to be welded along its length and width, respectively. Specifically, the two first fully welded clamping arms 811 clamp the battery 01 to be welded along its width, and the two second fully welded clamping arms 812 clamp the battery 01 to be welded along its length. This allows the battery 01 to be positioned more securely and precisely.

[0270] In some embodiments of the present disclosure, as shown in Figures 21 and 22, the full weld clamping tool 81 further includes a first full weld clamping cylinder 813, which is used to drive the two first full weld clamping arms 811 to move closer to or further away from each other to clamp or release the battery to be welded 01. In some embodiments of the present disclosure, the full weld clamping tool 81 further includes a second full weld clamping cylinder 814, which is used to drive the two second full weld clamping arms 812 to move closer to or further away from each other to clamp or release the battery to be welded 01.

[0271] In some embodiments of the present disclosure, please refer to Figures 23 and 24. The full welding module also includes a protective cover picking and placing submodule 83. The protective cover picking and placing submodule 83 includes a third rack 831, a material picking part 832 and a protective cover preparation part 833. The protective cover preparation part 833 is used to store the protective cover. The protective cover preparation part 833 is relatively fixed to the third rack 831. The material picking part 832 is movably arranged on the third rack 831 so as to be able to move relative to the third rack 831 to positions corresponding to the protective cover preparation part 833 and the battery 01 to be welded, so as to place the protective cover from the protective cover preparation part 833 to the side of the top cover 011 away from the shell 012, or place the protective cover from the battery 01 to be welded onto the protective cover preparation part 833.

[0272] By having the protective cover placement submodule 83 place a protective cover on the top cover 011 of the battery 01 to be welded, that is, the protective cover is located on the side of the top cover 011 away from the inside of the shell 012 along the thickness direction, and the side of the top cover 011 away from the inside of the shell 012 along the thickness direction is shielded by the protective cover, the non-welding wires of the battery 01 to be welded can be effectively protected, which is conducive to reducing damage caused by the welding process. By having the protective cover placement submodule 83 remove the protective cover from the top cover 011 of the battery 01 to be welded, it is convenient to unload the battery. Moreover, after the protective cover placement submodule 83 removes the protective cover from the top cover 011 of the battery 01 to be welded, the protective cover can be placed again on another battery 01 to be welded by the protective cover placement submodule 83. The protective cover can be recycled, which is conducive to improving production efficiency.

[0273] In some embodiments of the present disclosure, referring to FIG23 and FIG24 , when the protective cover is located on the top cover 011, the protective cover can shield the poles of the battery 01 to be welded along the thickness direction of the top cover 011. In this way, the protective cover can better protect the poles.

[0274] In some embodiments of the present disclosure, referring to Figures 23 and 24 , the pick-up member 832 is slidably connected to the third frame 831. The pick-up member 832 slides relative to the third frame 831 to move to positions corresponding to the protective cover preparation member 833 and the battery to be welded 01. This provides a relatively simple structure.

[0275] In some embodiments of the present disclosure, please refer to Figures 23 and 24. The protective cover picking and placing submodule 83 further includes a protective cover cleaning mechanism 834. The picking member 832 can move relative to the frame to a position corresponding to the protective cover cleaning mechanism 834, so that the protective cover cleaning mechanism 834 cleans the protective cover. During the full welding process, the protective cover placed on the top cover 011 is easily contaminated. After the picking member 832 removes the protective cover from the top cover 011 and places the protective cover on the protective cover preparation member 833, the picking member 832 first moves to a position corresponding to the protective cover cleaning mechanism 834, so that the protective cover cleaning mechanism 834 cleans the protective cover, so that the contamination on the protective cover during the full welding process is removed so that the protective cover can be reused.

[0276] In some embodiments of the present disclosure, please refer to Figures 21, 22, 23 and 24. The fourth frame is relatively fixed to the third frame 831, the second reference platform 84 is relatively fixed to the fourth frame, and the full welding clamping fixture 81 is slidably connected to the fourth frame in the horizontal direction so as to be able to move to positions corresponding to the full welding conveying module, the second reference platform 84, the third frame 831 and the full welding welder 85 respectively; when the full welding clamping fixture 81 is in the position corresponding to the second reference platform 84, the lifting mechanism 82 applies an upward force to the battery 01 to be welded clamped by the clamping mechanism, so that the upper surface of the battery 01 to be welded can extend out of the clamping space and fit into the second reference platform 84; when the full welding clamping fixture 81 is in the position corresponding to the third frame 831, the protective cover placement submodule 83 can take and place the protective cover on the top cover 011.

[0277] In some embodiments of the present disclosure, referring to Figures 21, 22, 23, and 24, the full-weld conveyor module, second reference platform 84, third frame 831, and full-weld welder 85 are sequentially arranged along the direction in which the full-weld clamping fixture 81 slides relative to the fourth frame. Thus, as the full-weld clamping fixture 81 slides relative to the fourth frame, it moves sequentially to positions corresponding to the second reference platform 84, third frame 831, and full-weld welder 85. This facilitates the sequential alignment of the battery 01 to be welded with the second reference platform 84, the placement of the protective cover on the top cover 011, and the welding process by the full-weld welder 85. This helps reduce the travel of the full-weld clamping fixture 81 relative to the fourth frame. After the welding process by the full-weld welder 85 is completed, the full-weld clamping fixture 81 can slide relative to the fourth frame and return to the position corresponding to the third frame 831, allowing the protective cover removal and placement submodule to remove the protective cover from the top cover 011, allowing the protective cover to be reused and facilitating battery unloading.

[0278] For ease of understanding, the following describes the flow process of the full welding clamping tool 81. Referring to Figure 25, in some embodiments of the present disclosure, the full welding clamping tool 81 first receives the material at the full welding loading position x2, and then moves to the second reference platform 84, so that the second reference platform 84 corrects the posture of the battery 01 to be welded; then the full welding clamping tool 81 moves to the protective cover pick-up and placement submodule 83, so that the protective cover pick-up and placement submodule 83 places the protective cover on the top cover 011; then the full welding clamping tool 81 moves to the full welding welder 85, so that the full welding welder 85 performs full welding; after the full welding is completed, the full welding clamping tool 81 returns to the protective cover pick-up and placement submodule 83, and the protective cover pick-up and placement submodule 83 removes the protective cover on the battery 01 to be welded; then the full welding clamping tool 81 moves to the full welding discharge position x3 for discharge, and after discharge, the full welding clamping tool 81 can return to the full welding loading position x2 to receive the material again.

[0279] In some embodiments of the present disclosure, referring to Figures 26 and 27 , the battery top cover welding system further includes a second articulated manipulator, a rolling frame, a rolling fixture 91, and a rolling mechanism. The second articulated manipulator transports the battery welded by the full welding module to the rolling loading position x4. The second articulated manipulator can be a four-axis manipulator, for example. The full welding module, the rolling loading position x4, and the rolling mechanism can be arranged in a horizontal sequence. The rolling loading position x4 can be located on the side of the full welding module away from the spot welding processing submodule 6. The rolling frame, the rolling loading position x4, and the rolling mechanism are relatively fixed. The rolling fixture 91 is movably mounted on the rolling frame so as to be able to move to the rolling loading position x4 and the rolling mechanism, respectively, to clamp the battery on the second articulated manipulator. The battery is then transported from the second articulated manipulator to the rolling mechanism for rolling. The rolling fixture 91 can clamp the battery along its width to improve the stability of the clamping. In some embodiments of the present disclosure, the rolling clamp 91 can be slidably connected to the rolling frame to move along the arrangement direction of the rolling loading position x4 and the rolling mechanism to a position flush with the rolling loading position x4 and the rolling mechanism, so as to transport the battery from the second joint manipulator to the rolling clamp 91.

[0280] In some embodiments of the present disclosure, referring to Figures 26 and 27, a rolling clamp 91 includes a rolling reference clamp arm 911 and a rolling movable clamp arm 912. The rolling reference clamp arm 911 is movably mounted on a rolling frame and fixedly connected to a base. Rolling movable clamp arms 912 are provided on both sides of the rolling reference clamp arm 911. Two rolling clamping cylinders 913 are provided on the rolling reference clamp arm 911. The output ends of the two rolling clamping cylinders 913 are respectively connected to the rolling movable clamp arms 912 on both sides to respectively drive the rolling movable clamp arms 912 on both sides to move toward or away from the rolling reference clamp arm 911 to clamp the battery. In this way, both sides of the rolling reference clamp arm 911 can clamp different batteries with the corresponding rolling movable clamp arms 912, allowing the rolling clamp 91 to clamp more batteries, which is beneficial to improving production efficiency.

[0281] In some embodiments of the present disclosure, please refer to Figures 26 and 27. The rolling mechanism includes a long-side rolling mechanism 93 and a short-side rolling mechanism 92. After the rolling fixture 91 clamps the battery, it can move relative to the frame to the positions corresponding to the long-side rolling mechanism 93 and the short-side rolling mechanism 92 in sequence, so as to perform long-side rolling and short-side rolling in sequence. After rolling, the battery can be transferred from the rolling fixture 91 to other positions such as the post-weld inspection fixture 103 by a third joint manipulator such as a four-axis manipulator. Figure 25 shows the circulation process of the rolling fixture 91. The rolling fixture 91 moves from the rolling loading position x4 to the short-side rolling mechanism 92 and the long-side rolling mechanism 93 in sequence, so that the battery is rolled on the long side and rolled on the short side in sequence. After that, the rolling fixture 91 can return to the rolling loading position x4 to receive the material.

[0282] In some embodiments of the present disclosure, referring to Figures 28, 29 and 30, the battery top cover welding system further includes a discharge and reflow module 10, which includes a post-weld inspection fixture 103, a post-weld inspection mechanism 101, a sorting module 104, a good product discharge conveyor line 105, a defective product discharge conveyor line 106 and a reflow conveyor line 107. After the battery is transferred from the rolling fixture 91 to the post-weld inspection fixture 103 by a joint manipulator or other mechanism, the post-weld inspection fixture 103 clamps the cylinder and moves to the post-weld inspection mechanism 101. At the point, the post-weld inspection mechanism 101 inspects the quality of the battery, and the sorting module 104 sorts the battery according to the results of the post-weld inspection mechanism 101. The good battery is transported to the good product discharge conveyor line 105, so that the good product conveyor line conveys the battery to the good product discharge position x7, and the defective battery is transported to the defective product discharge conveyor line 106, so that the defective product conveyor line conveys the battery to the defective product discharge position x8. The battery that needs to be repaired is transported to the reflow conveyor line 107, and the reflow conveyor line 107 conveys the battery to the full welding upper position x2, and then performs full welding again. In some embodiments of the present disclosure, the battery top cover welding system also includes a transplanting conveyor line 108, which can transport batteries in opposite directions along its own extension direction. The good product conveyor line and the defective product conveyor line are respectively connected to the two ends of the transplanting conveyor line 108 to respectively transport the batteries to the good product conveyor line and the defective product conveyor line. The sorting module 104 can transport the batteries to the good product conveyor line and the defective product conveyor line respectively through the transplanting conveyor line 108. This helps save the space occupied by the layout of each conveyor line.

[0283] In some embodiments of the present disclosure, referring to Figures 28, 29, and 30, the post-weld inspection mechanism 101 includes a long-side detector 1011 and a short-side detector 1012. The post-weld inspection fixture 103, under the action of a force, drives the battery to move relative to the long-side detector 1011 along the length of the battery, causing the long-side detector 1011 to move along the long-side weld line of the battery, thereby inspecting the battery through drawing splicing. After the long-side inspection, the short-side detector 1012, under the action of a force, moves relative to the post-weld inspection fixture 103 along the short-side weld line of the battery, thereby inspecting the short-side weld line of the battery through drawing splicing. Figure 27 shows the circulation process of the post-weld inspection fixture 103. The post-weld inspection fixture 103 first receives the material at the post-weld inspection loading position x5, and then moves to the long side detector 1011, the short side detector 1012 and the unloading position x6 in sequence. After the battery is unloaded at the unloading position x6, the post-weld inspection fixture 103 returns to the post-weld inspection loading position x5 to receive the material again.

[0284] The embodiment of the present disclosure further provides a battery top cover welding method, which is applied to a battery top cover welding system. The battery top cover welding system includes a battery fixture, a power mechanism, a cleaning processing submodule, a press-fitting processing submodule 4, and a spot welding processing submodule 6.

[0285] Please refer to Figure 31, the battery top cover welding method includes:

[0286] S101, controlling the battery clamp to clamp both the shell and the top cover of the battery to be welded, so as to maintain the relative positions of the top cover and the shell;

[0287] S102, control the power mechanism to drive the battery clamp to move to transport the battery to be welded, so that the battery to be welded is transported to the cleaning processing submodule, the pressing processing submodule and the spot welding processing submodule in sequence, so that the cleaning processing submodule, the pressing processing submodule and the spot welding processing submodule process the same battery to be welded in sequence.

[0288] By setting up a battery clamp, the battery clamp clamps the shell 012 and the top cover 011 of the battery 01 to be welded to maintain the relative positions of the shell 012 and the top cover 011. The shell 012 and the top cover 011 of the battery 01 to be welded can be synchronously transported to the processing module for processing, which is conducive to improving production efficiency.

[0289] In some embodiments of the present disclosure, the battery top cover welding system further includes a full welding module; the full welding module includes a second reference platform 84, a lifting mechanism 82, and a full welding clamping tool 81, and the full welding clamping tool 81 includes a clamping mechanism, which is used to clamp the battery 01 to be welded in a horizontal direction. Referring to Figure 32, the battery top cover welding method further includes:

[0290] S201, when the battery to be welded is in a position corresponding to the second reference platform, controlling the lifting mechanism to move in a vertical direction relative to the clamping mechanism to apply an upward force to the battery to be welded so that the upper surface of the battery to be welded extends out of the clamping mechanism and is in contact with the second reference platform;

[0291] S202 : When the upper surface of the battery to be welded is in contact with the second reference platform, control the clamping mechanism to clamp the battery to be welded.

[0292] By applying an upward force to the battery 01 to be welded by the lifting mechanism 82, the clamping mechanism may not clamp the battery 01 to be welded, or may only apply a small clamping force to the battery 01 to be welded before the upper surface of the battery 01 to be welded extends out of the clamping space and mates with the second reference platform 84. After the upper surface of the battery 01 to be welded extends out of the clamping space and mates with the second reference platform 84, that is, after the position of the battery 01 to be welded is adjusted to an appropriate position, the clamping mechanism then applies a larger clamping force to the battery 01 to firmly clamp the battery 01 to be welded. This helps reduce the friction between the battery 01 to be welded and the clamping mechanism during the process of the lifting mechanism 82 pushing the battery 01 to be welded.

[0293] In some embodiments of the present disclosure, the full welding module further includes a protective cover pick-and-place submodule 83;

[0294] Referring to FIG33 , the battery top cover welding method further includes:

[0295] S301, controlling the protective cover taking and placing submodule to place the protective cover on a side of the top cover away from the housing;

[0296] S302, controlling the full welding welder of the full welding module to weld the battery to be welded;

[0297] S303 , controlling the protective cover taking and placing submodule to take away the protective cover from the fully soldered battery.

[0298] By having the protective cover placement submodule 83 place a protective cover on the top cover 011 of the battery 01 to be welded, that is, the protective cover is located on the side of the top cover 011 away from the inside of the shell 012 along the thickness direction, and the side of the top cover 011 away from the inside of the shell 012 along the thickness direction is shielded by the protective cover, the non-welding wires of the battery 01 to be welded can be effectively protected, which is conducive to reducing damage caused by the welding process. By having the protective cover placement submodule 83 remove the protective cover from the top cover 011 of the battery 01 to be welded, it is convenient to unload the battery. Moreover, after the protective cover placement submodule 83 removes the protective cover from the top cover 011 of the battery 01 to be welded, the protective cover can be placed again on another battery 01 to be welded by the protective cover placement submodule 83. The protective cover can be recycled, which is conducive to improving production efficiency.

[0299] In some embodiments of the present disclosure, controlling the protective cover picking and placing submodule to place the protective cover to the side of the top cover away from the shell includes at least one of the following: controlling the protective cover picking and placing submodule to place the protective cover from the protective cover spare part to the side of the top cover away from the shell; controlling the protective cover picking and placing submodule to place the protective cover from the fully welded battery to the side of the top cover away from the shell.

[0300] That is, referring to FIG34 and FIG35 , the battery top cover welding method includes:

[0301] S401, controlling the protective cover taking and placing submodule to place the protective cover from the protective cover stock to a side of the top cover away from the housing;

[0302] S402, controlling the full welding welder of the full welding module to weld the battery to be welded;

[0303] S403 , controlling the protective cover removal and placement submodule to remove the protective cover from the fully soldered battery.

[0304] and / or,

[0305] S501, controlling the protective cover placement submodule to place the protective cover from the fully soldered battery to the side of the top cover away from the housing;

[0306] S502, controlling the full welding welder of the full welding module to weld the battery to be welded;

[0307] S503 , controlling the protective cover taking and placing submodule to take away the protective cover from the fully soldered battery.

[0308] By making the picking component 832 keep grabbing the protective cover after it removes the protective cover from the top cover 011 of the battery to be welded 01, until another battery to be welded 01 is transported to the position corresponding to the protective cover picking and placing submodule 83, the picking component 832 can place the protective cover on the battery to be welded 01, and after the battery is fully welded, the picking component 832 removes the protective cover from the battery again and repeats the above action. The method for picking and placing the protective cover by the picking component 832 includes the following steps performed in sequence: after the battery to be welded 01 is fully welded, the picking component 832 is controlled to remove the protective cover from the top cover 011 of the battery to be welded 01 and keep grabbing the protective cover; when the battery to be welded 01 is transported to the position corresponding to the protective cover picking and placing submodule 83, the picking component 832 is controlled to place the protective cover located thereon onto the battery to be welded 01. After the protective cover has been used a sufficient number of times, that is, after the same protective cover has been placed on a sufficient number of batteries 01 to be welded in the above manner, the material removal unit 832 will then transport the protective cover to the protective cover stock unit 833. This helps improve production efficiency. In some embodiments of the present disclosure, the protective cover stock unit 833 may be a drawer-type mechanism. After the protective covers on the protective cover stock unit 833 have been used a considerable number of times, the protective covers in the protective cover stock unit 833 can be replaced collectively.

[0309] In some embodiments of the present disclosure, the battery top cover welding system includes a short side cleaning processing submodule 2, a press-fitting processing submodule 4, a spot welding processing submodule 6, a spot welding detection mechanism and a full welding module arranged in sequence along a straight line. The first conveying module 1 is arranged between the loading position x1 and the short side cleaning processing submodule 2, the second conveying module 3 is arranged between the short side cleaning processing submodule 2 and the press-fitting processing submodule 4, the third conveying module 5 is arranged between the press-fitting processing submodule 4 and the spot welding processing submodule 6, and the spot welding detection conveying mechanism 71 is arranged between the processing module and the spot welding detection mechanism. The first conveying module 1, the second conveying module 3, the third conveying module 5 and the spot welding detection conveying mechanism 71 convey the battery 01 to be welded to the short side cleaning processing submodule 2, the press-fitting processing submodule 4, the spot welding detection conveying mechanism 71 in turn. Processing submodule 4, spot welding processing submodule 6 and spot welding detection mechanism. After the spot welding detection mechanism passes the inspection, the battery to be welded 01 is transported by the four-axis manipulator through the spot welding detection conveying mechanism 71 to the full welding clamping tool 81 of the full welding module. The full welding clamping tool 81 transports the battery to be welded 01 to the second reference platform 84 of the full welding module, the protective cover picking and placing submodule 83 and the full welding welder 85 in turn. After the full welding welder 85 completes the welding, the full welding clamping tool 81 transports the battery to be welded 01 to the protective cover picking and placing submodule 83 to remove the protective cover and then discharge the material.

[0310] The above embodiments are intended only to illustrate the technical solutions of the present disclosure, and are not intended to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of the present disclosure, and are intended to be encompassed by the specification of the present disclosure. In particular, the various technical features described in the various embodiments may be combined in any manner, as long as there are no structural conflicts.

Claims

1. A battery top cover welding system, comprising: A conveying module, the conveying module includes a battery fixture and a power mechanism; the battery fixture is used to clamp both the housing and the top cover of the battery to be welded to maintain the relative position between the top cover and the housing; the battery fixture is arranged on the output end of the power mechanism so as to be able to move and convey the battery to be welded driven by the output end of the power mechanism; A processing module, the processing module includes a cleaning processing sub-module, a press-fitting processing sub-module and a spot welding processing sub-module, the cleaning processing sub-module, the press-fitting processing sub-module and the spot welding processing sub-module are all arranged at the output end of the corresponding conveying module to sequentially process the same battery to be welded conveyed by the battery fixture; The processing module includes a clamping tooling, the clamping tooling is used to clamp both the housing and the top cover to maintain the relative position between the top cover and the housing so that the processing module can process the battery to be welded.

2. The battery top cover welding system according to claim 1, wherein, The battery fixture includes two conveying and clamping arms arranged oppositely along a first direction, and the two conveying and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; when the battery fixture clamps the battery to be welded, the top cover is directly opposite to the opening of the housing, the first direction is perpendicular to the axial direction of the opening, and the two conveying and clamping arms straddle both the top cover and the housing to clamp both the top cover and the housing along the first direction.

3. The battery top cover welding system according to claim 1 or 2, wherein, When the battery fixture is in a position corresponding to the processing module, the battery fixture is staggered from the clamping tooling so that the battery fixture and the clamping tooling can jointly clamp the battery to be welded.

4. The battery top cover welding system according to any one of claims 1 to 3, wherein, The battery top cover welding system includes a first conveying module, and the cleaning processing sub-module is arranged at the output end of the first conveying module to be able to clean the welding wire of the battery to be welded conveyed by the first conveying module; The first conveying module includes a first battery fixture, the first battery fixture includes a first inserting member, when the first battery fixture clamps the battery to be welded, there is a first gap between the top cover and the opening of the housing in the thickness direction of the top cover, and the first inserting member extends into the first gap and cooperates with the first gap.

5. The battery top cover welding system according to claim 4, wherein, The first battery fixture includes two oppositely arranged conveying and clamping arms, and the two conveying and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; the first inserting member is a protrusion formed on the surface of one of the two conveying and clamping arms facing the other, the first inserting member is fixed to the corresponding conveying and clamping arm and extends into the first gap along the direction in which it protrudes from the corresponding conveying and clamping arm.

6. The battery top cover welding system according to any one of claims 1 to 5, wherein, The battery top cover welding system includes a first conveying module, and the cleaning processing sub-module is arranged at the output end of the first conveying module to be able to clean the welding wire of the battery to be welded conveyed by the first conveying module; The first conveying module includes a first battery fixture, and the first battery fixture includes two oppositely arranged conveying clamping arms. The two conveying clamping arms together form a clamping space to clamp the outer surface of the battery to be welded. When the first battery fixture clamps the battery to be welded, the arrangement direction of the two conveying clamping arms of the first battery fixture is consistent with the length direction of the battery to be welded. The first conveying module further includes a first power mechanism, and the first power mechanism can drive the first battery fixture to move along the arrangement direction of the two conveying clamping arms, so that the long-side cleaning module moves relative to the battery to be welded along the long-side welding line of the battery to be welded to clean the long-side welding line.

7. The battery top cover welding system according to claim 6, wherein, The first battery fixture further includes two oppositely arranged large-surface clamping arms. The two large-surface clamping arms together form a clamping space to clamp the outer surface of the battery to be welded. When the first battery fixture clamps the battery to be welded, both of the two large-surface clamping arms are located on the side close to the inside of the housing in the axial direction of the opening of the housing, and the opposite setting direction is consistent with the width direction of the battery to be welded.

8. The battery top cover welding system according to any one of claims 1 to 7, wherein, The cleaning and processing sub-module includes a cleaning clamping tooling. When the cleaning clamping tooling clamps the battery to be welded, the top cover is facing the opening of the housing. The cleaner of the cleaning and processing sub-module is movably connected to the cleaning clamping tooling, so that when the cleaning clamping tooling clamps the battery to be welded, the cleaner of the cleaning and processing sub-module can move along the welding line of the battery to be welded to synchronously clean the top cover and the housing.

9. The battery top cover welding system according to claim 8, wherein, The cleaning clamping tooling includes two cleaning clamping arms oppositely arranged along a second direction. The two cleaning clamping arms together form a clamping space to clamp the outer surface of the battery to be welded. When the cleaning clamping tooling clamps the battery to be welded, the second direction is perpendicular to the axial direction of the opening, and both of the two cleaning clamping arms straddle the top cover and the housing to clamp both the top cover and the housing along the second direction.

10. The battery top cover welding system according to claim 9, wherein, The cleaning clamping tooling includes a second extending member. When the cleaning clamping tooling clamps the battery to be welded, there is a second gap between the top cover and the opening in the thickness direction of the top cover. The second extending member extends into the second gap and cooperates with the second gap.

11. The battery top cover welding system according to claim 10, wherein, The second extending member is a protrusion formed on the surface of one of the two cleaning clamping arms facing the other. The second extending member is fixed to the corresponding cleaning clamping arm and extends into the second gap along the direction in which it protrudes relative to the corresponding cleaning clamping arm.

12. The battery top cover welding system according to any one of claims 9 to 11, wherein, The cleaning and processing sub-module includes a short-side cleaning and processing sub-module. The short-side cleaning and processing sub-module includes a short-side cleaning clamping tooling. When the short-side cleaning clamping tooling clamps the battery to be welded, the arrangement direction of the two cleaning clamping arms of the short-side cleaning clamping tooling is consistent with the width direction of the battery to be welded.

13. The battery top cover welding system according to claim 12, wherein, The battery top cover welding system includes a second conveying module, and the short side cleaning and processing sub-module is arranged at the input end of the second conveying module, so that the second conveying module can convey the battery to be welded by the short side cleaning and processing sub-module; The two conveying and clamping arms of the battery fixture of the second conveying module are arranged opposite to each other along the second direction, and the two conveying and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; the two cleaning and clamping arms are used to clamp the third part of the battery to be welded, and the two conveying and clamping arms of the second conveying module are used to clamp the fourth part of the battery to be welded. The third part and the fourth part are arranged along the length direction of the battery to be welded, so that the cleaning and clamping arms and the conveying and clamping arms of the second conveying module can jointly clamp the outer surface of the battery to be welded.

14. The battery top cover welding system according to any one of claims 1 to 13, wherein, The battery top cover welding system includes a second conveying module, and the pressing and processing sub-module is arranged at the output end of the second conveying module to be able to press the battery to be welded conveyed by the second conveying module; The clamping tool of the pressing and processing sub-module includes two first pressing and clamping arms arranged opposite to each other along the third direction, and the two first pressing and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; and two second pressing and clamping arms arranged opposite to each other along the fourth direction, and the two second pressing and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; when the clamping tool clamps the battery to be welded, the top cover is directly opposite to the opening of the housing, the third direction and the fourth direction are respectively consistent with the length direction and the width direction of the battery to be welded, and the two first pressing and clamping arms and the two second pressing and clamping arms straddle the top cover and the housing of the battery to be welded to clamp the top cover and the housing respectively along the third direction and the fourth direction.

15. The battery top cover welding system according to any one of claims 1 to 14, wherein, The battery top cover welding system includes a third conveying module, and the pressing and processing sub-module is arranged at the input end of the third conveying module, so that the third conveying module can convey the battery to be welded by the pressing and processing sub-module; the battery fixture of the third conveying module includes a pressing member, and the pressing member is used to apply a force to the top cover towards the housing to keep the top cover in the pressed position.

16. The battery top cover welding system according to claim 15, wherein, The battery fixture of the third conveying module includes two conveying and clamping arms, and the two conveying and clamping arms are arranged opposite to each other. The two conveying and clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded; the pressing member is slidably connected to the conveying and clamping arms. When the two conveying and clamping arms clamp the outer surface of the battery to be welded, the direction in which the two conveying and clamping arms are arranged opposite to each other is perpendicular to the axial direction of the opening of the housing, and the direction in which the pressing member slides relative to the conveying and clamping arms is consistent with the height direction of the battery to be welded, so that the pressing member can apply a force to the top cover towards the housing.

17. The battery top cover welding system according to any one of claims 1 to 16, wherein, The battery top cover welding system includes a third conveying module, and the press-fitting processing sub-module is arranged at the input end of the third conveying module, so that the third conveying module can convey the battery to be welded by the press-fitting processing sub-module; The battery fixture of the third conveying module includes a first bearing member, and the first bearing member is used to support the side of the housing away from the top cover, so that the press-fitting processing sub-module can press-fit the battery to be welded.

18. The battery top cover welding system according to any one of claims 1 to 17, wherein, The battery top cover welding system includes a third conveying module, and the spot welding processing sub-module is arranged at the output end of the third conveying module, so that the spot welding processing sub-module can spot-weld the top cover conveyed by the third conveying module to the housing; The clamping tooling of the spot welding processing sub-module includes a first reference table, and the first reference table is used to apply a force towards the housing to the top cover along the height direction of the battery to be welded, so that the top cover is kept in the position after press-fitting, and the spot welding processing sub-module can spot-weld the battery to be welded. When the battery fixture of the third conveying module clamps the battery to be welded, at least a part of the top cover is exposed outside the clamping cavity of the battery fixture, so that the first reference table can abut against the top cover.

19. The battery top cover welding system according to any one of claims 1 to 18, wherein, The clamping tooling of the spot welding processing sub-module includes two first spot welding clamping arms arranged oppositely in the fifth direction. The two first spot welding clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded, and two second spot welding clamping arms arranged oppositely in the sixth direction. The two second spot welding clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded. When the clamping tooling clamps the battery to be welded, the opening of the top cover is aligned with the opening of the housing, and the fifth direction and the sixth direction are respectively consistent with the length direction and the width direction of the battery to be welded.

20. The battery top cover welding system according to any one of claims 1 to 19, wherein, The spot welding processing sub-module includes a step detection mechanism. The spot welding processing sub-module further includes a first frame, and the first frame is relatively fixed to the step detection mechanism. The clamping tooling of the spot welding processing sub-module is slidably connected to the first frame, so that the step detection mechanism can move along the welding line of the battery to be welded relative to the battery to be welded to perform step detection on the battery to be welded.

21. The battery top cover welding system according to any one of claims 1 to 20, wherein, The battery top cover welding system further includes a full welding module and a full welding conveying module. The input end of the full welding conveying module is connected to the spot welding processing sub-module, and the output end is connected to the full welding module to convey the battery to be welded from the spot welding processing sub-module to the full welding module.

22. The battery top cover welding system according to claim 21, wherein, The full welding module includes a full welding clamping tooling. The full welding clamping tooling includes a clamping mechanism and a second bearing member. The clamping mechanism includes two full welding clamping arms arranged oppositely in the horizontal direction. The two full welding clamping arms jointly form a clamping space to clamp the outer surface of the battery to be welded. Along the direction in which the two full welding clamping arms are arranged oppositely, the second bearing member is located between the two full welding clamping arms and is used to support the battery to be welded located between the two full welding clamping arms in the vertical direction.

23. The battery top cover welding system according to claim 22, wherein, The full-weld clamping tooling further includes a second frame, and the two full-weld clamping arms are movably connected to the second frame to be able to clamp or release the battery to be welded; the second carrier is slidably connected to the frame in the vertical direction to be able to rise to a target position to carry the battery to be welded conveyed by the full-weld conveying module, and be able to drive the battery to be welded down between the two full-weld clamping arms, so that the two full-weld clamping arms clamp the battery to be welded.

24. The battery top cover welding system according to claim 22 or 23, wherein, The full-weld module further includes a second reference table and a jacking mechanism. The second reference table is arranged above the full-weld clamping tooling, and the jacking mechanism can move in the vertical direction relative to the clamping mechanism to apply an upward force to the battery to be welded, so that the upper surface of the battery to be welded extends out and fits with the second reference table.

25. The battery top cover welding system according to claim 24, wherein, The full-weld module further includes a fourth frame. The fourth frame is relatively fixed to the second reference table, and the full-weld clamping tooling is slidably connected to the fourth frame in the horizontal direction to be able to move to positions corresponding to the full-weld conveying module and the second reference table respectively.

26. The battery top cover welding system according to any one of claims 22 to 25, wherein, The full-weld module further includes a fourth frame. The fourth frame is relatively fixed to the full-weld welder of the full-weld module, and the full-weld clamping tooling is slidably connected to the fourth frame in the horizontal direction to be able to move to positions corresponding to the full-weld conveying module and the full-weld welder of the full-weld module respectively, so that the full-weld welder performs full-weld on the battery to be welded.

27. The battery top cover welding system according to any one of claims 22 to 26, wherein, The number of the clamping mechanisms is at least two, and at least two of the clamping mechanisms are arranged in a circular arrangement, and the axial direction of the circular arrangement is the vertical direction; when the full-weld clamping tooling clamps the battery to be welded, the top cover is located above the housing.

28. The battery top cover welding system according to any one of claims 21 to 27, wherein, The full-weld module further includes a protection cover picking and placing sub-module. The protection cover picking and placing sub-module includes a third frame, a picking member and a protection cover stockpiling member. The protection cover stockpiling member is used for storing protection covers. The protection cover stockpiling member is relatively fixed to the third frame, and the picking member is movably arranged on the third frame to be able to move to positions corresponding to the protection cover stockpiling member and the battery to be welded respectively relative to the third frame, so as to place the protection cover from the protection cover stockpiling member on the side of the top cover away from the housing, or place the protection cover from the battery to be welded on the protection cover stockpiling member.

29. A method for welding a battery top cover, which is applied to a battery top cover welding system. The battery top cover welding system includes a battery fixture, a power mechanism, a cleaning and processing sub-module, a press-fitting processing sub-module and a spot-welding processing sub-module; the method for welding a battery top cover includes: Controlling the battery fixture to clamp both the housing and the top cover of the battery to be welded to maintain the relative positions of the top cover and the housing; Controlling the power mechanism to drive the battery fixture to move to convey the battery to be welded, so that the battery to be welded is sequentially conveyed to the cleaning and processing sub-module, the press-fitting processing sub-module and the spot-welding processing sub-module, so that the cleaning and processing sub-module, the press-fitting processing sub-module and the spot-welding processing sub-module sequentially process the same battery to be welded.

30. The battery top cover welding method according to claim 29, wherein, The battery top cover welding system further includes a full welding module; the full welding module includes a second reference table, a lifting mechanism, and a full welding clamping tooling, and the full welding clamping tooling includes a clamping mechanism for clamping the battery to be welded in the horizontal direction; The battery top cover welding method further includes: When the battery to be welded is in a position corresponding to the second reference table, controlling the lifting mechanism to move relative to the clamping mechanism in the vertical direction to apply an upward force to the battery to be welded, so that the upper surface of the battery to be welded extends out of the clamping mechanism and fits with the second reference table; When the upper surface of the battery to be welded fits with the second reference table, controlling the clamping mechanism to clamp the battery to be welded.

31. The battery top cover welding method according to claim 30, wherein, The full welding module further includes a protective cover picking and placing sub-module; the battery top cover welding method further includes: Controlling the protective cover picking and placing sub-module to place a protective cover on the side of the top cover away from the housing; Controlling the full welding welder of the full welding module to weld the battery to be welded; Controlling the protective cover picking and placing sub-module to pick up the protective cover on the battery after full welding.

32. The battery top cover welding method according to claim 31, wherein, Controlling the protective cover picking and placing sub-module to place a protective cover on the side of the top cover away from the housing includes at least one of the following: Controlling the protective cover picking and placing sub-module to place the protective cover from the protective cover stock part to the side of the top cover away from the housing; Controlling the protective cover picking and placing sub-module to place the protective cover from the battery after full welding to the side of the top cover away from the housing.

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