Automated assembly equipment and assembly methods for power battery packs

Abstract

This invention discloses an automated assembly equipment and an assembly method for a power battery assembly. The automated assembly equipment includes an equipment frame, a lifting and conveying unit, and a lifting drive mechanism mounted on the equipment frame. The lifting and conveying unit includes a lifting frame, a conveyor line, and a horizontal drive mechanism. Both the conveyor line and the horizontal drive mechanism are mounted on the lifting frame. The horizontal drive mechanism is connected to the conveyor line and drives the conveyor line to move along a first direction or a second direction to engage or disengage with the battery frame. The lifting drive mechanism is mounted on the equipment frame and connected to the lifting frame to drive the lifting and conveying unit to move up and down. According to the automated assembly equipment of this invention, battery packs can be automatically assembled into the battery frame. This solves the problem that insufficient height of the receiving layer prevents the use of a conveyor line for automated assembly. It also reduces the structural size design limitations of the conveyor line due to the height of the receiving layer, which helps improve the rigidity of the conveyor line and thus enhances the stability of the assembly process.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to an automated assembly equipment and an assembly method for a power battery assembly. Background Technology

[0002] Currently, the assembly of power battery packs for new energy commercial vehicles mainly relies on manual placement of battery packs into battery frames, resulting in low efficiency, high risk, and wasted human resources. Some related technologies employ automated assembly equipment, using conveyor lines to transport battery packs to the corresponding housing layers within the battery frame. However, the structural dimensions of these automated assembly equipment are limited by the height of the housing layers within the battery frame, leading to low rigidity of the conveyor lines. This results in instability during the assembly process and makes it impossible for the conveyor lines to support heavy battery packs. Furthermore, when the housing layer height of some battery frames is insufficient, automated assembly equipment cannot be used to automatically assemble the battery packs.

[0003] Therefore, there is a need to provide an automated assembly device to solve the technical problems of low rigidity caused by the structural size design of the conveyor line being limited by the height of the housing layer, and the inability to automatically assemble the battery frame due to insufficient height of the housing layer. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of this invention is to provide an automated assembly device that can achieve automated assembly of power battery assemblies, with high assembly efficiency and labor savings; furthermore, it can solve the problem that insufficient layer height of the receiving layer prevents the use of conveyor lines for automated assembly, reducing the structural size design limitations of the conveyor line due to the layer height, thus improving the rigidity of the conveyor line and consequently enhancing the stability of the assembly process.

[0005] The present invention also proposes an assembly method for assembling a power battery assembly using the aforementioned automated assembly equipment.

[0006] An automated assembly device according to a first aspect of the present invention includes: a device frame; a lifting and conveying unit disposed on the device frame and including a lifting frame, a conveyor line, and a horizontal drive mechanism, wherein the conveyor line and the horizontal drive mechanism are both disposed on the lifting frame, the conveyor line is used to convey a battery pack, the horizontal drive mechanism is connected to the conveyor line, and the horizontal drive mechanism is used to drive the conveyor line to move along a first direction or a second direction to engage or disengage with a battery frame, the conveying direction of the conveyor line is consistent with the first direction, the first direction is perpendicular to the vertical direction, and the second direction is opposite to the first direction; and a lifting and drive mechanism disposed on the device frame and connected to the lifting frame to drive the lifting and conveying unit to move vertically; wherein the conveyor line has a first position and a second position disposed along the first direction, the conveyor line is disengaged from the battery frame when it is in the first position, and engages with the battery frame when it is in the second position.

[0007] According to the automated assembly equipment of the present invention, by setting up a conveyor line and a horizontal drive mechanism, the horizontal drive mechanism can drive the conveyor line to separate or cooperate with the battery frame. When the conveyor line cooperates with the battery frame, the battery pack can be transported to a preset position in the battery frame through the conveyor line, so as to realize the automated assembly of the battery pack into the battery frame, which has high assembly efficiency and saves manpower.

[0008] Furthermore, by driving the conveyor line up and down through a lifting drive mechanism, during the process of assembling the battery pack into the Mth receiving layer of the battery frame using this automated assembly equipment, the conveyor line can be inserted below the Mth receiving layer. The conveyor line itself does not occupy much of the height space within the Mth receiving layer. The lifting drive mechanism can be used to lift the conveyor line upwards until its placement surface protrudes above the support surface of the Mth receiving layer to a preset protrusion height, ensuring that a portion of the conveyor line remains below the Mth receiving layer. This reduces the space occupied by the conveyor line in the height of the Mth receiving layer, solving the problem of insufficient layer height preventing automated assembly using a conveyor line. It also reduces the limitations imposed by the layer height on the conveyor line's structural dimensions, allowing for a larger thickness and width of the conveyor line. This improves the conveyor line's rigidity, reduces deformation or shaking during battery pack transport, and makes the battery pack assembly process more stable. Moreover, a more rigid conveyor line can support heavier battery packs.

[0009] According to some embodiments of the present invention, the lifting frame is provided with multiple sets of lifting guide wheel sets, the multiple sets of lifting guide wheel sets are arranged at intervals along the circumference of the lifting frame, each set of lifting guide wheel sets includes at least one lifting guide wheel, the equipment stand is provided with lifting guide surfaces extending in the vertical direction, there are multiple lifting guide surfaces, the multiple lifting guide surfaces are arranged at intervals along the circumference of the equipment stand, and the lifting guide wheel makes rolling contact with the corresponding lifting guide surface.

[0010] According to some embodiments of the present invention, each of the lifting guide surfaces includes two sub-guide surfaces arranged at an angle, each sub-guide surface extends in the vertical direction, each set of lifting guide wheels includes two lifting guide wheels, the central axes of the two lifting guide wheels in each set of lifting guide wheels are arranged at an angle, and the two lifting guide wheels in each set of lifting guide wheels are in rolling contact with the two sub-guide surfaces of the corresponding lifting guide surface.

[0011] According to some embodiments of the present invention, the lifting drive mechanism includes a lifting motor, a first drive shaft, a support shaft, and two first chain drive mechanisms. The lifting motor and the first drive shaft are both located above the lifting conveying unit, and the support shaft is located below the lifting conveying unit. The first drive shaft and the support shaft both extend along a third direction. The width direction of the conveying line is consistent with the third direction. The lifting motor is connected to the first drive shaft to drive the first drive shaft to rotate. The first drive shaft is connected to the upper ends of the two first chain drive mechanisms, and the support shaft is connected to the lower ends of the two first chain drive mechanisms. Each first chain drive mechanism includes a first chain, and the two ends of the first chain in the length direction are spaced apart and both are connected to the lifting frame.

[0012] According to some embodiments of the present invention, the horizontal drive mechanism includes a horizontal drive motor, a rack and a first gear. The horizontal drive motor is located at the bottom of the lifting frame, the first gear is located at the output end of the horizontal drive motor, the rack is located at the bottom of the conveyor line and extends along the length direction of the conveyor line, and the first gear meshes with the rack.

[0013] According to some embodiments of the present invention, the conveyor line includes a main body, a conveying drive mechanism, and a conveying module. The conveying drive mechanism is disposed at the bottom of the main body, and the conveying module is disposed on the main body and used to convey the battery pack. The conveying drive mechanism is connected to the conveying module to drive the conveying module to move. The conveying module has a placement surface for placing the battery pack, and the placement surface protrudes from the main body in an upward direction. The width of the main body is greater than the width of the conveying module.

[0014] According to some embodiments of the present invention, the conveying module includes a belt conveyor mechanism.

[0015] According to some embodiments of the present invention, each of the conveying modules includes a connecting shaft and two belt conveying mechanisms. The two belt conveying mechanisms of each conveying module are disposed at both ends in the width direction of the main body. The connecting shaft extends along the width direction of the main body. The two belt conveying mechanisms are respectively connected to both ends of the connecting shaft. The conveying drive mechanism is drivenly connected to the connecting shaft.

[0016] According to some embodiments of the present invention, the conveyor line includes a plurality of conveyor modules, which are arranged at intervals along the extension direction of the main line body. At least a portion of two adjacent conveyor modules define a clearance space, which is used to avoid the bottom structure of the receiving layer in the battery frame, and the receiving layer is used to receive the battery pack.

[0017] According to some embodiments of the present invention, the conveying drive mechanism includes a conveying motor, a plurality of second drive shafts and a plurality of belt drive mechanisms. The plurality of second drive shafts are arranged at intervals along the extension direction of the main body, and each second drive shaft extends along the width direction of the main body. Adjacent two second drive shafts are connected by the belt drive mechanisms. The conveying motor is connected to one of the second drive shafts. Each conveying module corresponds to one second drive shaft and is connected to the corresponding second drive shaft.

[0018] According to some embodiments of the present invention, the lifting and conveying unit includes a separation and buffer mechanism disposed on the lifting frame. The separation and buffer mechanism is used to lift the battery pack placed on the conveying line upward away from the conveying line before the conveying line engages with the battery frame. The separation and buffer mechanism is also used to transfer the battery pack downward onto the conveying line when the conveying line engages with the battery frame and before the conveying line conveys the battery pack into the battery frame.

[0019] According to some embodiments of the present invention, the separation buffer mechanism includes a separation buffer motor and two buffer support plates. The two buffer support plates are located on both sides of the width direction of the conveyor line and are used to buffer and support the battery pack. The separation buffer motor is driveably connected to the buffer support plates to drive the buffer support plates to move in the up and down direction.

[0020] According to some embodiments of the present invention, the separation buffer mechanism includes a fourth gear, a second chain drive mechanism, and two first lead screw mechanisms. The first lead screw mechanism includes a first lead screw and a first nut seat. The separation buffer motor is located on the top of the lifting frame. The second chain drive mechanism includes a second chain. The fourth gear is located at the output end of the separation buffer motor and meshes with the second chain. The first lead screws of the two first lead screw mechanisms are connected by transmission through the second chain drive mechanism. The buffer support plate is fixed to the first nut seat.

[0021] According to some embodiments of the present invention, the conveyor line includes a main body, a conveyor drive mechanism, and a conveyor module. The conveyor drive mechanism is disposed at the bottom of the main body, and the conveyor module is disposed on the main body and used to convey the battery pack. The conveyor drive mechanism is connected to the conveyor module to drive the conveyor module to move. The conveyor module has a placement surface for placing the battery pack, and the placement surface protrudes from the main body in an upward direction. The width of the main body is greater than the width of the conveyor module. Two buffer support plates are located on both sides of the conveyor module along the width direction of the main body and above the main body.

[0022] According to some embodiments of the present invention, the lifting and conveying unit includes an alignment mechanism disposed on the lifting frame and used to align the battery pack supported on the buffer support plate.

[0023] According to some embodiments of the present invention, the upper surface of the buffer support plate includes a buffer support surface for supporting contact with the battery pack, the buffer support surface being a self-lubricating surface.

[0024] According to some embodiments of the present invention, the centering mechanism includes a centering motor and a plurality of centering adjustment components, the plurality of centering adjustment components being divided into two groups, the two groups of centering adjustment components being located on both sides of the width direction of the conveyor line; wherein, each centering adjustment component includes an adjustment rod and an adjustment swing arm, the adjustment swing arm being connected to the adjustment rod and used to contact the battery pack, the adjustment rod extending in the vertical direction and passing through the buffer support plate, the adjustment rod being rotatable in the horizontal direction relative to the buffer support plate and the buffer support plate being movable in the vertical direction relative to the adjustment rod, the centering motor being driveably connected to the adjustment rod to drive the centering adjustment component to rotate in the horizontal direction to push the battery pack to the centering position.

[0025] According to some embodiments of the present invention, the centering mechanism includes a third chain drive mechanism and two fourth chain drive mechanisms. The third chain drive mechanism is arranged along the width direction of the conveyor line, and the two fourth chain drive mechanisms are located on opposite sides of the width direction of the conveyor line. The centering motor is located between the two fourth chain drive mechanisms and on one side of the third chain drive mechanism along the second direction. Each group of centering adjustment members consists of two members, each group of two centering adjustment members being a first centering adjustment member and a second centering adjustment member. The first and second centering adjustment members are arranged along the second direction. The third chain drive mechanism includes a third chain. The centering motor is connected to the third chain via a gear drive mechanism. The third chain drive mechanism drives two of the first centering adjustment members in the two groups of centering adjustment members. The fourth chain drive mechanism drives the first and second centering adjustment members in the same group of centering adjustment members.

[0026] According to some embodiments of the present invention, the automatic assembly equipment includes two frame positioning units located on opposite sides of a conveying track in the width direction. The conveying track extends along a third direction and is used to convey the battery frame to one side of the equipment stand along the first direction. The width direction of the conveying line is consistent with the third direction. Each frame positioning unit includes a frame support base, a frame support upper seat, and a frame separation mechanism. The frame support upper seat is disposed on the frame support base and is used to support the battery frame. The frame separation mechanism is installed on the frame support base and connected to the frame support upper seat. The frame separation mechanism is used to drive the frame support upper seat to move up and down to transfer the battery frame from the conveying trolley and support it on the frame support upper seat.

[0027] According to some embodiments of the present invention, the frame separation mechanism includes a frame separation motor and a drive block. The drive block is slidably disposed on the frame support base along the third direction and located below the frame support upper seat. The frame separation motor is connected to the drive block to drive the drive block to slide along the third direction. The bottom surface of the frame support upper seat is provided with a drive roller, and the drive roller makes rolling contact with the upper surface of the drive block. The upper surface of the drive block includes a first drive support surface, a drive guide surface, and a second drive support surface (845) arranged sequentially along the conveying direction of the conveying track. The first drive support surface and the second drive support surface (845) are both parallel to the horizontal plane. The drive guide surface extends obliquely upward in the direction from the second drive support surface (845) to the first drive support surface.

[0028] According to some embodiments of the present invention, each of the frame positioning units includes a first positioning mechanism, the first positioning mechanism being disposed on a frame support upper seat and including a first positioning motor and a first positioning block, the first positioning block being connected to the output end of the first positioning motor, the upper surface of the frame support upper seat being provided with a first positioning post, the first positioning block and the first positioning post being used to jointly limit the battery frame in the third direction; and / or, one of the frame positioning units includes a second positioning mechanism (86) and another frame positioning unit includes a second positioning post, the second positioning mechanism (86) including a second positioning motor and a second positioning block, the second positioning block being connected to the output end of the second positioning motor, the second positioning post being disposed on the upper surface of the frame support upper seat, one of the second positioning block and the second positioning post being used to limit the battery frame in the first direction and the other being used to limit the battery frame in the second direction.

[0029] According to some embodiments of the present invention, a preliminary positioning component is included, the preliminary positioning component including a plurality of preliminary positioning mechanisms. When the conveyor line is located at the first position, the plurality of preliminary positioning mechanisms are distributed on both sides of the width direction of the conveyor line. The upper end of the preliminary positioning mechanism has a guide positioning surface formed on one side facing the conveyor line. The guide positioning surface is higher than the upper surface of the conveyor line. The guide positioning surface is used to guide the battery pack to be placed on the conveyor line.

[0030] According to some embodiments of the present invention, the guide positioning surface includes a guide portion and a positioning portion, the guide portion being connected to the upper side of the positioning portion, the positioning portion extending in a vertical direction, and the guide portion extending obliquely in a direction from top to bottom toward the direction close to the conveyor line.

[0031] According to some embodiments of the present invention, the initial positioning mechanism includes a limiting column and a guide positioning member, wherein the upper surface of the limiting column is higher than the upper surface of the conveyor line, and the guide positioning member forms the guide positioning surface; wherein the guide positioning member is detachably disposed on the upper surface of the limiting column and / or the position of the guide positioning member in the width direction of the conveyor line is adjustable.

[0032] According to some embodiments of the present invention, the conveyor line has a first end and a second end disposed opposite to each other along the length direction of the conveyor line, and the automatic assembly equipment further includes an auxiliary support, which is disposed on one side of the equipment stand along the second direction and spaced apart from the equipment stand, and the auxiliary support is used to support the first end of the conveyor line when the conveyor line is in the first position.

[0033] According to some embodiments of the present invention, the first end is provided with a first support roller, the first support roller is supported on the auxiliary bracket and rolls in contact with the auxiliary bracket, and the rotation axis of the first support roller extends along the width direction of the conveyor line.

[0034] According to some embodiments of the present invention, the conveyor line has a first end and a second end disposed opposite to each other along the length direction of the conveyor line. The automatic assembly equipment further includes: an auxiliary follow-up unit, the auxiliary follow-up unit being located on one side of the equipment stand along the first direction, the auxiliary follow-up unit being spaced apart from the equipment stand to define a placement space for placing the battery frame between the auxiliary follow-up unit and the equipment stand. The auxiliary follow-up unit includes an auxiliary stand, an auxiliary support member, and an auxiliary drive mechanism. The auxiliary support member is disposed on the auxiliary stand, and the auxiliary drive mechanism is disposed on the auxiliary stand and connected to the auxiliary support member to drive the auxiliary support member to move up and down. The auxiliary follow-up unit is used to support the second end of the conveyor line through the auxiliary support member when the conveyor line is in the second position.

[0035] According to some embodiments of the present invention, the auxiliary drive mechanism includes an auxiliary drive motor and a second lead screw mechanism. The second lead screw mechanism includes a second lead screw and a second nut seat. The second lead screw extends in a vertical direction, and the second nut seat is sleeved on the second lead screw. The auxiliary drive motor is disposed on the auxiliary support frame and connected to the second lead screw for driving the second lead screw to rotate. The auxiliary support member is fixed to the second nut seat.

[0036] According to some embodiments of the present invention, the second end is provided with a second support roller, the second support roller is supported on the auxiliary support member and rolls in contact with the auxiliary support member, and the rotation axis of the second support roller extends along the width direction of the conveyor line.

[0037] According to some embodiments of the present invention, the second end is detachable; and / or, the position of the second end in the width direction of the conveyor line is adjustable or the position of the second end in the vertical direction is adjustable.

[0038] According to a second aspect of the present invention, a method for assembling a power battery assembly utilizes an automated assembly device according to the first aspect of the present invention to assemble the battery packs into the battery frame. The power battery assembly includes a battery frame and a plurality of battery packs. The battery frame has multiple layers of receiving layers arranged sequentially in a vertical direction. At least a portion of the receiving layers has a clearance opening on its bottom surface for avoiding a conveyor line. The battery packs are received within the receiving layers. The multiple receiving layers are, from top to bottom, first to Nth receiving layers, where N ≥ 2 and N is an integer. The method for assembling the power battery assembly includes: sequentially assembling the plurality of battery packs into the first to Nth receiving layers.

[0039] The step of assembling the battery pack in each of the receiving layers includes:

[0040] Once the conveyor line is located at the first position, the battery pack is placed on the conveyor line.

[0041] The conveyor line transports the battery pack toward the assembly position in a direction close to the battery frame;

[0042] The lifting drive mechanism drives the lifting frame to rise and fall, thereby raising and lowering the conveyor line to a height position matching the Mth accommodating layer;

[0043] The separation buffer mechanism lifts the battery pack upwards to separate it from the conveyor line;

[0044] A horizontal drive mechanism drives the conveyor line to move along the first direction to the second position, so that the first conveying segment of the conveyor line is inserted into the battery frame along the first direction and located below the Mth receiving layer, and the second conveying segment of the conveyor line is located outside the battery frame, 1≤M≤N and M is an integer, and the second conveying segment and the first conveying segment are arranged sequentially along the first direction;

[0045] The lifting drive mechanism drives the lifting frame to move upward, which in turn drives the conveyor line to move upward, so that the placement surface of the conveyor line protrudes upward from the support surface of the Mth accommodating layer to a preset protrusion height. Part of the conveyor line is located below the Mth accommodating layer. Both the placement surface of the conveyor line and the support surface of the Mth accommodating layer are used to place and support the battery pack.

[0046] The separation buffer mechanism drives the battery pack to move downwards onto the second conveying section supported by the conveyor line;

[0047] The conveyor line transports the battery pack placed on the second conveyor section to the first conveyor section, so as to transport the battery pack to a preset position within the Mth receiving layer;

[0048] The lifting drive mechanism drives the lifting frame to move downward, which in turn drives the conveyor line to move downward, so as to transfer and support the battery pack on the support surface of the Mth accommodating layer.

[0049] The horizontal drive mechanism drives the conveyor line to move along the second direction to the first position to separate it from the battery frame.

[0050] According to the assembly method of the power battery assembly of the present invention, during the assembly of the battery pack of the Mth receiving layer, a portion of the conveyor line is inserted into the battery frame and located below the Mth receiving layer. The conveyor line is then raised until its placement surface protrudes upward from the support surface of the Mth receiving layer to a preset protrusion height. The battery pack, placed on another portion of the conveyor line, is then transported to a preset position within the Mth receiving layer via the conveyor line. The battery pack then moves downward via the conveyor line, allowing it to transfer and support itself on the support surface of the Mth receiving layer under its own gravity. This allows the battery pack to be automatically assembled into the preset position within the battery frame. Since the battery pack is transported into the battery frame using a conveyor line, automated assembly can be achieved, resulting in high assembly efficiency and saving manpower.

[0051] Furthermore, since the conveyor line is inserted below the Mth receiving layer during assembly, the conveyor line itself does not occupy much of the height space within the Mth receiving layer. Even when the conveyor line is raised until its placement surface protrudes above the support surface of the Mth receiving layer to a preset protrusion height, a portion of the conveyor line remains below the Mth receiving layer. This reduces the space occupied by the conveyor line in the height of the Mth receiving layer, thus solving the problem of insufficient layer height preventing the use of a conveyor line for automated assembly. It also reduces the limitations imposed by the layer height on the structural dimensions of the conveyor line, allowing for a larger thickness in the vertical direction and a larger width. This improves the rigidity of the conveyor line, reduces deformation or shaking during battery pack transport, and makes the battery pack assembly process more stable. Moreover, a more rigid conveyor line can support heavier battery packs.

[0052] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0053] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0054] Figure 1 This is a schematic diagram of an automated assembly equipment according to some embodiments of the present invention, wherein the conveyor line is located in a first position;

[0055] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0056] Figure 3 yes Figure 1 A schematic diagram of the automated assembly equipment from another angle;

[0057] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0058] Figure 5 yes Figure 1 A schematic diagram of the main structure of the automated assembly equipment in the diagram;

[0059] Figure 6 yes Figure 1 A partial structural diagram of the automated assembly equipment in the diagram;

[0060] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0061] Figure 8 yes Figure 1 A partial structural diagram of the automated assembly equipment from another angle;

[0062] Figure 9 yes Figure 1 A schematic diagram of the lifting and conveying unit of the automated assembly equipment;

[0063] Figure 10 yes Figure 9 Enlarged view of point D in the middle;

[0064] Figure 11 yes Figure 9 Another angle view of the lifting and conveying unit in the diagram;

[0065] Figure 12 yes Figure 11 A partial structural diagram of the lifting and conveying unit in the diagram;

[0066] Figure 13 yes Figure 12 Enlarged view at point E in the middle;

[0067] Figure 14 yes Figure 1 A schematic diagram of the conveyor line of the automated assembly equipment in the diagram;

[0068] Figure 15 yes Figure 14 Enlarged view at point F;

[0069] Figure 16 yes Figure 14 Another angle diagram of the conveyor line in the diagram;

[0070] Figure 17 yes Figure 16 Enlarged view of point G in the middle;

[0071] Figure 18 yes Figure 1 A schematic diagram of the main structure of the frame positioning unit of the automated assembly equipment in the diagram;

[0072] Figure 19 yes Figure 1 A schematic diagram of the auxiliary follow-up unit of the automated assembly equipment;

[0073] Figure 20 This is a schematic diagram of an automated assembly equipment according to some embodiments of the present invention, wherein the conveyor line is located in a second position;

[0074] Figure 21 yes Figure 20 Enlarged view of point H in the middle;

[0075] Figure 22 This is a schematic diagram of assembling a battery pack into a battery frame using an automated assembly device according to some embodiments of the present invention;

[0076] Figure 23 yes Figure 22 Enlarged view of point I in the middle;

[0077] Figure 24 yes Figure 22 A schematic diagram of the battery frame.

[0078] Figure label:

[0079] 100. Automated assembly equipment;

[0080] 10. Equipment frame; 11. Lifting guide surface; 111. Sub-guide surface; 12. Fall arrestor;

[0081] 20. Lifting and conveying unit; 21. Lifting frame; 22. Lifting guide wheel assembly; 221. Lifting guide wheel;

[0082] 30. Conveyor line; 3a. First conveyor section; 3b. Second conveyor section; 31. Main line body; 311. Second connecting hole group; 312. Second connecting hole; 32. Conveying drive mechanism; 321. Conveying motor; 322. Second drive shaft; 3221. Second gear; 323. Belt drive mechanism; 33. Conveying module; 331. Belt conveying mechanism; 3311. Placement surface; 332. Connecting shaft; 333. Third gear; 34. Conveying roller group; 341. Conveying roller; 35. Clearance space; 36. First end; 361. First end support; 362. First support rib; 363. First support roller; 37. Second end; 371. Second end support; 372. Second support rib; 373. Fourth connecting hole; 374. Second support roller;

[0083] 41. Horizontal drive mechanism; 411. Horizontal drive motor; 412. Rack; 413. First gear; 42. First linear guide rail;

[0084] 43. Lifting drive mechanism; 431. Lifting motor; 432. First transmission shaft; 433. Support shaft; 434. First chain transmission mechanism; 435. First chain;

[0085] 50. Separating buffer mechanism; 51. Separating buffer motor; 52. Fourth gear; 53. Second chain drive mechanism; 531. Second chain; 54. First lead screw mechanism; 541. First lead screw; 542. First nut seat; 55. Buffer support plate; 551. Buffer support surface; 56. Second linear guide rail;

[0086] 57. Centering mechanism; 571. Centering motor; 572. Centering adjustment component; 5721. Adjusting rod; 5722. Adjusting swing arm; 573. First transmission gear; 574. Gear transmission mechanism; 575. Third chain transmission mechanism; 576. Fourth chain transmission mechanism; 577. Second transmission gear;

[0087] 60. Initial positioning mechanism; 61. Limiting column; 611. First connecting hole group; 612. First connecting hole; 62. Guide positioning component; 621. Guide positioning surface; 6211. Guide part; 6212. Positioning part; 622. Third connecting hole;

[0088] 63. Auxiliary support; 631. First support block; 632. First support surface; 633. First guide surface;

[0089] 70. Auxiliary follow-up unit; 71. Auxiliary support frame; 72. Auxiliary drive mechanism; 73. Auxiliary drive motor; 74. Second lead screw mechanism; 741. Second lead screw; 742. Second nut seat; 75. Auxiliary support component; 76. Auxiliary support plate; 77. Second support block; 771. Second support surface; 772. Second guide surface; 78. Third linear guide rail;

[0090] 80. Frame positioning unit; 81. Frame support base; 82. Frame support upper seat; 821. First positioning post; 822. Second positioning post; 83. Drive roller; 84. Frame separation mechanism; 841. Frame separation motor; 842. Drive block; 843. First drive support surface; 844. Drive guide surface; 845. Second drive support surface (845); 85. First positioning mechanism; 851. First positioning motor; 852. First positioning block; 86. Second positioning mechanism (86); 861. Second positioning motor; 862. Second positioning block;

[0091] 200. Conveying track; 201. Conveying trolley;

[0092] 300. Battery frame; 301. Receiving layer; 302. Support surface; 303. Opening; 304. Clearance opening; 305. Clearance opening; 306. Bottom structure; 307. Reinforcing beam;

[0093] 400. Battery pack. Detailed Implementation

[0094] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0095] Reference Figures 1-6 According to an embodiment of the first aspect of the present invention, an automatic assembly equipment 100 includes: an equipment stand 10, a lifting and conveying unit 20, and a lifting drive mechanism 43.

[0096] The lifting and conveying unit 20 is mounted on the equipment frame 10. The lifting and conveying unit 20 includes a lifting frame 21, a conveyor line 30, and a horizontal drive mechanism 41. The conveyor line 30 and the horizontal drive mechanism 41 are both mounted on the lifting frame 21. The lifting drive mechanism 43 is mounted on the equipment frame 10 and is connected to the lifting frame 21. The lifting drive mechanism 43 is used to drive the lifting and conveying unit 20 to move up and down, which also allows the conveyor line 30 to move up and down.

[0097] A conveyor line 30 is used to convey the battery pack 400, and a horizontal drive mechanism 41 is connected to the conveyor line 30. The horizontal drive mechanism 41 is used to drive the conveyor line 30 to move along a first direction (e.g., referring to direction e1 in the figure) or a second direction (e.g., referring to direction e2 in the figure) to engage or disengage with the battery frame 300. The conveying direction of the conveyor line 30 is consistent with the first direction, which is perpendicular to the vertical direction, and the second direction is opposite to the first direction. For example, the horizontal drive mechanism 41 can drive the conveyor line 30 to move along the first direction to engage with the battery frame 300; the horizontal drive mechanism 41 can also drive the conveyor line 30 to move along the second direction to disengage with the battery frame 300. The conveyor line 30 has a first position and a second position along the first direction. When the conveyor line 30 is in the first position, it is disengaged from the battery frame 300; when the conveyor line 30 is in the second position, it engages with the battery frame 300.

[0098] The following is a brief description of the assembly process within the battery frame 300 when assembling the battery pack 400 using the automatic assembly equipment 100 of this embodiment of the invention.

[0099] Reference Figure 24 The power battery assembly includes a battery frame 300 and multiple battery packs 400. The battery frame 300 has multiple receiving layers 301 arranged sequentially in a vertical direction. The battery packs 400 are received within the receiving layers 301. Each receiving layer 301 can receive one or more battery packs 400. When multiple battery packs 400 are received in each receiving layer 301, the multiple battery packs 400 received in each layer can be arranged along a first direction, which is perpendicular to the vertical direction. At least one side of each receiving layer 301 of the battery frame 300 along the first direction is open, so that the battery packs 400 can enter the receiving layer 301 through the opening 303. The conveyor line 30 for conveying the battery packs 400 can also be inserted into the receiving layer 301 through the side opening 303. At least a portion of the bottom surface of the receiving layer 301 has a clearance opening 304 for avoiding the conveyor line 30. The battery frame 300 has multiple layers 301, which are arranged from top to bottom as the first to the Nth layer 301, where N≥2 and N is an integer.

[0100] Optionally, reinforcing brackets 308 can be provided on both sides of the battery frame 300 along the first direction. The reinforcing brackets 308 can be "X" shaped, and can improve the structural strength and rigidity of the battery frame 300. The reinforcing brackets 308 can be detachably installed on the battery frame 300. Before the conveyor line 30 is inserted into the battery frame 300, the battery frame 300 can be removed from the battery frame 300 so that the conveyor line 30 can be smoothly inserted into the battery frame 300. After the conveyor line 30 is separated from the battery frame 300, the reinforcing brackets 308 can be reinstalled on the battery frame 300.

[0101] Among them, reference Figure 1 , Figure 20 as well as Figure 22 The process of assembling the battery pack 400 in each receiving layer 301 using the aforementioned automated assembly equipment 100 may include the following steps:

[0102] Once the conveyor line 30 is in the first position, place the battery pack 400 on the conveyor line 30.

[0103] The conveyor line 30 transports the battery pack 400 toward the assembly position in a direction close to the battery frame 300;

[0104] The lifting drive mechanism 43 drives the lifting frame 21 to rise and fall, thereby driving the conveyor line 30 to rise and fall to a height position that matches the Mth accommodating layer 301;

[0105] The horizontal drive mechanism 41 drives the conveyor line 30 to move along the first direction to the second position, so that the first conveyor section 3a of the conveyor line 30 is inserted into the battery frame 300 along the first direction and is located below the Mth receiving layer 301, and the second conveyor section 3b of the conveyor line 30 is located outside the battery frame 300, 1≤M≤N and M is an integer, and the second conveyor section 3b and the first conveyor section 3a are arranged sequentially along the first direction;

[0106] The lifting drive mechanism 43 drives the lifting frame 21 to move upward, which in turn drives the conveyor line 30 to move upward, so that the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface of the Mth receiving layer 301 to a preset protrusion height. Part of the conveyor line 30 is located below the Mth receiving layer 301. The placement surface 3311 of the conveyor line 30 and the support surface of the Mth receiving layer 301 are both used to place and support the battery pack 400.

[0107] The conveyor line 30 transports the battery pack 400 placed on the second conveyor section 3b to the first conveyor section 3a, so as to transport the battery pack 400 to a preset position in the Mth receiving layer 301;

[0108] The lifting drive mechanism 43 drives the lifting frame 21 to move downward, which in turn drives the conveyor line 30 to move downward, so as to transfer the battery pack 400 to the support surface of the M receiving layer 301.

[0109] The horizontal drive mechanism 41 drives the conveyor line 30 to move along the second direction to the first position to separate from the battery frame 300.

[0110] According to the automated assembly equipment of the present invention, by setting a conveyor line 30 and a horizontal drive mechanism 41, the horizontal drive mechanism 41 can drive the conveyor line 30 to separate or cooperate with the battery frame 300. When the conveyor line 30 cooperates with the battery frame 300, the battery pack 400 can be transported to a preset position in the battery frame 300 through the conveyor line 30, so as to realize the automated assembly of the battery pack 400 into the battery frame 300, which has high assembly efficiency and saves manpower.

[0111] Furthermore, by driving the conveyor line 30 up and down through the lifting drive mechanism 43, during the process of assembling the battery pack 400 into the Mth receiving layer 301 of the battery frame 300 using the automatic assembly equipment 100, the conveyor line 30 can be inserted below the Mth receiving layer 301. The conveyor line 30 itself will not occupy much of the height space inside the Mth receiving layer 301. When the conveyor line 30 is lifted upward by the lifting drive mechanism 43 until the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface of the Mth receiving layer 301 to a preset protrusion height, part of the conveyor line 30 can still be located below the Mth receiving layer 301. This reduces the space occupied by the conveyor line 30 in the height of the Mth housing layer 301, thus solving the problem of insufficient height of the housing layer 301 preventing the use of the conveyor line 30 for automatic assembly. It also reduces the limitations imposed by the height of the housing layer 301 on the structural dimensions of the conveyor line 30, allowing for a larger thickness in the vertical direction and a larger width. This improves the rigidity of the conveyor line 30, reduces deformation or shaking during the transport of the battery pack 400, and makes the assembly process of the battery pack 400 more stable. Furthermore, the more rigid conveyor line 30 can support the heavier battery pack 400.

[0112] According to some embodiments of the present invention, with reference to Figure 6 and Figure 7The lifting frame 21 is equipped with multiple sets of lifting guide wheel groups 22, which are arranged at intervals along the circumference of the lifting frame 21. Each set of lifting guide wheel groups 22 includes at least one lifting guide wheel 221. The equipment stand 10 is equipped with multiple lifting guide surfaces 11 extending in the vertical direction, which are arranged at intervals along the circumference of the equipment stand 10. The lifting guide wheels 221 roll in contact with the corresponding lifting guide surfaces 11. During the process of the lifting drive mechanism 43 driving the lifting frame 21 to move up and down, thereby driving the lifting conveying unit 20 to move up and down, the lifting guide wheels 221 roll in contact with the corresponding lifting guide surfaces 11. The lifting guide wheels 221 roll up or down along the corresponding lifting guide surfaces 11, thereby guiding the vertical movement of the lifting conveying unit 20, so that the lifting conveying unit 20 runs stably in the vertical direction. While guiding the lifting conveying unit 20, it can also reduce the friction and wear between the lifting frame 21 and the equipment stand 10.

[0113] For example, in some embodiments, there are four sets of lifting guide wheel groups 22, and the equipment frame 10 is provided with four lifting guide surfaces 11 extending in the vertical direction, with each set of lifting guide wheel groups 22 corresponding to one lifting guide surface 11.

[0114] According to some embodiments of the present invention, with reference to Figure 6 and Figure 7 Each lifting guide surface 11 includes two sub-guide surfaces 111 arranged at an angle. Each sub-guide surface 111 extends vertically, and the two sub-guide surfaces 111 of each lifting guide surface 11 are adjacent and connected. For example, the two sub-guide surfaces 111 of each lifting guide surface 11 can be arranged vertically. Each set of lifting guide wheels 22 includes two lifting guide wheels 221. The central axes of the two lifting guide wheels 221 of each set of lifting guide wheels 221 are arranged at an angle. For example, the central axes of the two lifting guide wheels 221 of each set of lifting guide wheels 221 are arranged vertically. The two lifting guide wheels 221 of each set of lifting guide wheels 221 roll in contact with the two sub-guide surfaces 111 of the corresponding lifting guide surface 11. During the process of the lifting drive mechanism 43 driving the lifting frame 21 to move up and down, thereby driving the lifting conveying unit 20 to move up and down, the lifting guide wheels 221 roll up or down along the corresponding sub-guide surfaces 111, which can further improve the stability of the up and down movement of the lifting conveying unit 20.

[0115] According to some embodiments of the present invention, with reference to Figures 5-8The lifting drive mechanism 43 includes a lifting motor 431, a first drive shaft 432, a support shaft 433, and two first chain drive mechanisms 434. The lifting motor 431 and the first drive shaft 432 are both located above the lifting conveyor unit 20, and the support shaft 433 is located below the lifting conveyor unit 20. Both the first drive shaft 432 and the support shaft 433 extend along a third direction and are rotatably mounted on the equipment frame 10 around their own axes. The width direction of the conveyor line 30 is consistent with the third direction (e.g., refer to direction e3 in the attached figure). The lifting motor 431 is connected to the first drive shaft 432 to drive its rotation. The two sprockets of each first chain drive mechanism 434 can be arranged at intervals in the vertical direction. The first drive shaft 432 connects to the upper ends of the two first chain drive mechanisms 434, and the support shaft 433 connects to the lower ends of the two first chain drive mechanisms 434. Each first chain drive mechanism 434 has an upper sprocket mounted on and fixed relative to the first drive shaft 432, and a lower sprocket mounted on and fixed relative to the support shaft 433. Each first chain drive mechanism 434 includes a first chain 435, with its two ends spaced apart along its length, and both ends connected to the lifting frame 21.

[0116] The output end of the lifting motor 431 can be connected to the first drive shaft 432 via a belt drive mechanism 323 or a chain drive mechanism. The lifting motor 431 can be a servo motor.

[0117] In the above embodiment, when the lifting drive mechanism 43 drives the lifting frame 21 to move up and down, the lifting motor 431 works, and the lifting motor 431 drives the first transmission shaft 432 to rotate around its own central axis. The first transmission shaft 432 drives the two first chain transmission mechanisms 434 to move, thereby driving the lifting frame 21 to move up or down, which in turn drives the conveyor line 30 to move up or down.

[0118] According to some embodiments of the present invention, with reference to Figures 5-8 The automatic assembly equipment 100 includes a fall arrestor 12, which is mounted on the equipment frame 10 and located above the lifting and conveying unit 20. The fall arrestor 12 is connected to the lifting frame 21. When the lifting and conveying unit 20 descends at a normal speed, the fall arrestor 12 does not prevent the lifting frame 21 from moving downward. When the lifting and conveying unit 20 suddenly accelerates downward, the fall arrestor can prevent the lifting frame 21 from moving downward, thereby preventing the lifting and conveying unit 20 from malfunctioning and suddenly falling.

[0119] According to some embodiments of the present invention, with reference to Figures 11-13The horizontal drive mechanism 41 includes a horizontal drive motor 411, a rack 412, and a first gear 413. The horizontal drive motor 411 is located at the bottom of the lifting frame 21, the first gear 413 is located at the output end of the horizontal drive motor 411, and the rack 412 is located at the bottom of the conveyor line 30 and extends along the length of the conveyor line 30. The first gear 413 meshes with the rack 412. When the horizontal drive motor 411 is working, it can drive the first gear 413 to rotate. The first gear 413 drives the rack 412 to move in a first direction or a second direction, thereby driving the conveyor line 30 to move in the first direction or the second direction. The horizontal drive motor 411 can be a servo motor.

[0120] According to some embodiments of the present invention, with reference to Figures 9-12 A first linear guide rail 42 is provided between the bottom of the conveyor line 30 and the lifting frame 21, and the first linear guide rail 42 extends along the length of the conveyor line 30. By providing the first linear guide rail 42 between the bottom of the conveyor line 30 and the lifting frame 21, the movement of the conveyor line 30 along the first direction or the second direction can be guided, so that the conveyor line 30 can move more stably along the first direction or the second direction.

[0121] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17 The conveyor line 30 includes a main line body 31, a conveyor drive mechanism 32, and a conveyor module 33. The conveyor drive mechanism 32 is located at the bottom of the main line body 31, and the conveyor module 33 is located on the main line body 31 and is used to convey the battery pack 400. The conveyor drive mechanism 32 is connected to the conveyor module 33 to drive the conveyor module 33 to move. The conveyor module 33 has a placement surface 3311 for placing the battery pack 400. The placement surface 3311 protrudes from the main line body 31 in an upward direction, and the width of the main line body 31 is greater than the width of the conveyor module 33.

[0122] The widths of the main body 31 and the conveying module 33 refer to the dimensions in a third direction (refer to direction e3 in the attached diagram). This third direction intersects the vertical direction and is perpendicular to the first direction. By including the main body 31 and the conveying module 33 disposed on the main body 31 in the conveying line 30, and by making the main body 31 wider, the rigidity of the conveying line 30 is improved. This reduces deformation or shaking during the conveying of the battery pack 400, making the conveying process of the battery pack 400 more stable.

[0123] For example, when the conveyor line 30 moves upward so that the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface of the Mth receiving layer 301 to a preset protrusion height, the main line body 31 is located below the Mth receiving layer 301. This allows the wider main line body 31 to be located in the Mth receiving layer 301, while allowing the narrower conveyor module 33 to pass upward through the clearance opening 304 on the bottom surface of the Mth receiving layer 301. This reduces the vertical space occupied by the conveyor line 30 in the Mth receiving layer 301, while allowing the narrower conveyor module 33 to pass through the clearance opening 304 on the bottom surface of the Mth receiving layer 301 more smoothly. This reduces the probability of interference with the battery frame 300 during the upward movement of the conveyor line 30 until the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface of the Mth receiving layer 301 to a preset protrusion height.

[0124] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17 The conveying module 33 includes a belt conveyor mechanism 331. By configuring the conveying module 33 to include the belt conveyor mechanism 331, the adaptability of the conveyor line 30 can be enhanced. The battery pack 400 is placed on the belt of the conveyor line 30. When the conveying module 33 moves, the friction between the belt and the battery pack 400 can be used to drive the battery pack 400 to move. This allows the conveyor line 30 to adapt to battery packs 400 of different sizes.

[0125] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17 Each conveying module 33 includes a connecting shaft 332 and two belt conveyor mechanisms 331. The two belt conveyor mechanisms 331 of each conveying module 33 are located at both ends of the main line body 31 in the width direction. The connecting shaft 332 extends along the width direction of the main line body 31. The two belt conveyor mechanisms 331 are respectively connected to both ends of the connecting shaft 332. The pulleys of the two belt conveyor mechanisms 331 can be sleeved on the connecting shaft 332 and fixed relative to the connecting shaft 332. The conveying drive mechanism 32 is connected to the connecting shaft 332 in a driving connection. Thus, when the conveying line 30 needs to convey the battery pack 400 in the first direction, the conveying drive mechanism 32 drives the connecting shaft 332 to rotate around its own axis, thereby driving the two belt conveyor mechanisms 331 connected to the connecting shaft 332 to move, and in turn driving the battery pack 400 placed on the belt conveyor mechanism 331 to move in the first direction.

[0126] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17The conveyor line 30 includes multiple conveyor modules 33, which are spaced apart along the extension direction of the main line 31. At least some adjacent conveyor modules 33 define a clearance space 35 to avoid the bottom structure 306 of the receiving layer 301 in the battery frame 300, which is used to receive the battery pack 400. By setting the conveyor modules 33 to be multiple and spaced apart along the extension direction of the main line 31, and defining a clearance space 35 between at least some adjacent conveyor modules 33 to avoid the bottom structure 306 of the Mth receiving layer 301, interference between the conveyor modules 33 and the battery frame 300 can be avoided during the upward movement of the conveyor line 30 until the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface of the Mth receiving layer 301 to a preset protrusion height. This ensures that the conveyor line 30 moves upward as a whole to the set height position.

[0127] For example, in some embodiments, the bottom structure 306 of the Mth receiving layer 301 may include a reinforcing beam 307, which may extend in a third direction. The reinforcing beam 307 may be used to strengthen the structural strength and rigidity of the battery frame 300 and reduce the deformation and sway of the battery frame 300. When the conveyor line 30 moves upward so that the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface 302 of the Mth receiving layer 301 to a predetermined protrusion height, at least a portion of the reinforcing beam 307 on the bottom surface of the Mth receiving layer 301 may be accommodated within the aforementioned clearance space 35.

[0128] According to some embodiments of the present invention, at least some of the conveying modules 33 are detachable. For example, some of the conveying modules 33 may be detachable, or all of the conveying modules 33 may be detachable. The detachable conveying modules 33 can be mounted on the main line body 31 using fasteners. By making at least some of the conveying modules 33 detachable, the arrangement of the conveying modules 33 can be made more flexible, and conveying modules 33 of different specifications and sizes can be replaced as needed, for example, conveying modules 33 of different lengths can be replaced as needed. This allows for more flexible positioning of the aforementioned clearance space 35, enabling better adaptation to different battery frames 300.

[0129] According to some embodiments of the present invention, with reference to Figures 11-17The conveying drive mechanism 32 includes a conveying motor 321, multiple second drive shafts 322, and multiple belt drive mechanisms 323. The multiple second drive shafts 322 are arranged at intervals along the extension direction of the main line body 31, and each second drive shaft 322 extends along the width direction of the main line body 31. Adjacent second drive shafts 322 are connected by a belt drive mechanism 323. The conveying motor 321 is connected to one of the second drive shafts 322. Each conveying module 33 corresponds to one second drive shaft 322 and is connected to the corresponding second drive shaft 322. The conveying motor 321 can be located at one end of the main line body 31 along the second direction. The second drive shaft 322 closest to the conveying motor 321 among the multiple second drive shafts 322 is connected to the output end of the conveying motor 321. For example, the conveying motor 321 and one of the second drive shafts 322 can be connected by a belt drive mechanism 323 or a chain drive mechanism.

[0130] When the conveying drive mechanism 32 drives the conveying module 33 to move, the conveying motor 321 works and drives the second transmission shaft 322 connected to it to rotate around its own axis. Since the two adjacent second transmission shafts 322 are connected by a belt transmission mechanism 323, the second transmission mechanism connected to the conveying motor 321 drives the other second transmission shafts 322 to rotate around their own axis through the belt transmission mechanism 323. The other second transmission shafts 322 drive the corresponding conveying module 33 to move, thereby driving the battery pack 400 placed on the conveying module 33 to move along the first direction.

[0131] According to some embodiments of the present invention, with reference to Figures 11-17 Each conveying module 33 includes a connecting shaft 332 and two belt conveying mechanisms 331. The two belt conveying mechanisms 331 of each conveying module 33 are located at both ends of the main line body 31 in the width direction. The connecting shaft 332 extends along the width direction of the main line body 31, and the two belt conveying mechanisms 331 are respectively connected to both ends of the connecting shaft 332. The second transmission shaft 322 corresponding to the conveying module 33 is provided with a second gear 3221. The conveying module 33 also includes a third gear 333, which is located on the connecting shaft 332 and meshes with the second gear 3221.

[0132] When the conveyor line 30 needs to convey the battery pack 400 along the first direction, the conveyor drive mechanism 32 drives the conveyor module 33 to move, the conveyor motor 321 works, and the conveyor motor 321 drives the second drive shaft 322 connected to it to rotate around its own axis. Since the two adjacent second drive shafts 322 are connected by a belt drive mechanism 323, the second drive mechanism connected to the conveyor motor 321 drives the other second drive shafts 322 to rotate around their own axes through the belt drive mechanism 323. The second drive shaft 322 drives the second gear 3221 set on the second drive shaft 322 to rotate. Through the meshing of the second gear 3221 and the third gear 333, the connecting shaft 332 is driven to rotate around its own axis, thereby driving the two belt conveyor mechanisms 331 connected to the connecting shaft 332 to move, and thus driving the battery pack 400 placed on the conveyor module 33 to move along the first direction.

[0133] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17 The conveyor line 30 also includes at least one set of conveyor roller groups 34, which are spaced apart from the conveyor module 33 along the extension direction of the main line body 31. Each conveyor roller group 34 includes multiple conveyor rollers 341 spaced apart along the extension direction of the main line body 31. The conveyor rollers 341 are used to convey and support the battery pack 400. The conveyor rollers 341 can be unpowered conveyor rollers 341. Each conveyor roller 341 extends along the width direction of the main line body 31. At least some adjacent conveyor rollers 341 in the same conveyor roller group 34 define a clearance space 35. The clearance space 35 is used to avoid the bottom structure 306 of the receiving layer 301 in the battery frame 300, which is used to receive the battery pack 400. By including the conveyor module 33 and unpowered conveyor rollers 341 in addition to the conveyor line 30, the structural configuration of the conveyor line 30 is more flexible, and the clearance space 35 on the conveyor line 30 is also more flexible, allowing for better adaptation to different battery frames 300.

[0134] For example, a bottom structure 306 for avoiding the receiving layer 301 in the battery frame 300 can also be defined between the conveying roller group 34 and the adjacent conveying module 33.

[0135] Optionally, at least some of the conveyor rollers 341 are removable. For example, some of the conveyor rollers 341 may be removable, or each conveyor roller 341 may be removable. By making some of the conveyor rollers 341 removable, depending on the specific structure of the battery frame 300, some of the conveyor rollers 341 can be selectively removed to create clearance space 35 for the battery frame 300. This further makes the position and size of the clearance space 35 on the conveyor line 30 more flexible and can better match and adapt to different battery frames 300.

[0136] According to some embodiments of the present invention, with reference to Figure 5 , Figure 6 , Figure 9 , Figure 10 , Figure 20 The lifting and conveying unit 20 includes a separation and buffer mechanism 50, which is disposed on the lifting frame 21. The separation and buffer mechanism 50 is used to lift the battery pack 400 placed on the conveyor line 30 upward away from the conveyor line 30 before the conveyor line 30 and the battery frame 300 are engaged. The separation and buffer mechanism 50 is also used to transfer the battery pack 400 downward onto the conveyor line 30 when the conveyor line 30 and the battery frame 300 are engaged and before the conveyor line 30 conveys the battery pack 400 into the battery frame 300.

[0137] The separation buffer mechanism 50 is used to lift the battery pack 400 placed on the conveyor line 30 upwards away from the conveyor line 30 before the conveyor line 30 mates with the battery frame 300. After the battery pack 400 is separated from the conveyor line 30 by the separation mechanism, it is convenient to insert the conveyor line 30 into the battery frame 300 along the first direction. During the process of driving the conveyor line 30 to insert into the battery frame 300 along the first direction, the conveyor line 30 is in an unloaded state, and the requirement for driving force is low, which can reduce energy loss. It can also reduce the impact of the conveyor line 30 on the battery pack 400 during its movement along the first direction. For example, it may cause the position of the battery pack 400 to change, resulting in inaccurate subsequent assembly of the battery pack 400, which helps to ensure the accuracy of the battery pack 400 assembly.

[0138] The separation buffer mechanism 50 is also used to transfer the battery pack 400 on the conveyor line 30 downwards onto the conveyor line 30 when the conveyor line 30 is engaged with the battery frame 300 and before the conveyor line 30 conveys the battery pack 400 into the battery frame 300. This facilitates the downward transfer of the battery pack 400 temporarily stored on the separation buffer mechanism 50 onto the conveyor line 30, making it easier for the subsequent conveyor line 30 to convey the battery pack 400 into the battery frame 300.

[0139] For example, after the conveyor line 30 moves upward so that the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface 302 of the Mth receiving layer 301 to a preset protrusion height, the separation buffer mechanism 50 moves the temporarily stored battery pack 400 downward to be supported on the second conveying section 3b of the conveyor line 30. By moving the conveyor line 30 upward until the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface 302 of the Mth receiving layer 301 to a preset protrusion height, and then placing the battery pack 400 on the second conveying section 3b of the conveyor line 30, the conveyor line 30 is in an unloaded state during the upward movement of the conveyor line 30, which requires less driving force, thus reducing energy loss. It also reduces the impact of the upward movement of the conveyor line 30 on the battery pack 400, such as the potential for changes in the position of the battery pack 400, which could lead to inaccurate subsequent assembly of the battery pack 400. This helps to ensure the accuracy of the battery pack 400 assembly.

[0140] According to some embodiments of the present invention, with reference to Figure 5 , Figure 6 , Figure 9 , Figure 10 , Figure 20 The separation buffer mechanism 50 includes a separation buffer motor 51 and two buffer support plates 55. The two buffer support plates 55 are located on both sides of the width direction of the conveyor line 30 and are used to buffer and support the battery pack 400. The separation buffer motor 51 is driveably connected to the buffer support plates 55 to drive the buffer support plates 55 to move in the up and down direction.

[0141] When the battery pack 400 is placed on the conveyor line 30, the two buffer support plates 55 are located below the battery pack 400. When the separation buffer mechanism 50 needs to lift the battery pack 400 supported on the conveyor line 30 upwards, the separation buffer motor 51 drives the two buffer support plates 55 upwards until they contact the bottom surface of the battery pack 400. The separation buffer motor 51 continues to drive the two buffer support plates 55 upwards, thereby moving the battery pack 400 upwards until it separates from the conveyor line 30. Before the separation buffer mechanism 50 transfers the battery pack 400 onto the conveyor line 30, the battery pack 400 is temporarily supported on the two buffer support plates 55.

[0142] When the separation buffer mechanism 50 needs to transfer the battery pack 400, which is temporarily supported on the two buffer support plates 55, downward to the conveyor line 30, the separation buffer motor 51 drives the two buffer support plates 55 to move downward until the bottom surface of the battery pack 400 contacts the conveyor line 30. Then, the separation buffer motor 51 continues to drive the two buffer support plates 55 to move downward, thereby separating the two buffer support plates 55 from the battery pack 400 and transferring the battery pack 400 to the conveyor line 30.

[0143] According to some embodiments of the present invention, with reference to Figure 5 , Figure 6 , Figure 9 , Figure 10 , Figure 20 A second linear guide rail 56 is provided between the buffer support plate 55 and the lifting frame 21, and the second linear guide rail 56 extends in the vertical direction. By providing the second linear guide rail 56 between the buffer support plate 55 and the lifting frame 21, the second linear guide rail 56 can play a guiding role during the vertical movement of the buffer support plate 55, so that the buffer support plate 55 can move stably in the vertical direction.

[0144] According to some embodiments of the present invention, with reference to Figure 5 , Figure 6 , Figure 9 , Figure 10 , Figure 20 The separation buffer mechanism 50 includes a fourth gear 52, a second chain drive mechanism 53, and two first lead screw mechanisms 54. Each first lead screw mechanism 54 includes a first lead screw 541 and a first nut seat 542. The first lead screw 541 extends vertically. The separation buffer motor 51 is located on the top of the lifting frame 21. The second chain drive mechanism 53 can be arranged along the width of the conveyor line 30. Two sprockets of the second chain drive mechanism 53 are respectively sleeved on the upper ends of the first lead screws 541 of the two first lead screw mechanisms 54 and fixed relative to the first lead screws 541. The second chain drive mechanism 53 includes a second chain 531. The fourth gear 52 is located at the output end of the separation buffer motor 51 and meshes with the second chain 531. The first lead screws 541 of the two first lead screw mechanisms 54 are connected by the second chain drive mechanism 53. The buffer support plate 55 is fixed to the first nut seat 542.

[0145] When the separating buffer motor 51 drives the two buffer support plates 55 to move vertically, the separating buffer motor 51 drives the fourth gear 52 to rotate. Since the fourth gear 52 meshes with the second chain 531 of the second chain transmission mechanism 53, it can drive the second chain transmission mechanism 53 to move, which in turn drives the first lead screw 541 of the two first lead screw mechanisms 54 to rotate around its own axis. The rotating first lead screw 541 drives the first nut seat 542 to move vertically. The first nut seat 542 drives the buffer support plate 55 connected to it to move vertically.

[0146] According to some embodiments of the present invention, with reference to Figure 5 , Figure 9 , Figures 14-17The conveyor line 30 includes a main body 31, a conveyor drive mechanism 32, and a conveyor module 33. The conveyor drive mechanism 32 is located at the bottom of the main body 31, and the conveyor module 33 is located on the main body 31 and is used to convey the battery pack 400. The conveyor drive mechanism 32 is connected to the conveyor module 33 to drive the conveyor module 33 to move. The conveyor module 33 has a placement surface 3311 for placing the battery pack 400. The placement surface 3311 protrudes from the main body 31 in an upward direction. The width of the main body 31 is greater than the width of the conveyor module 33. The widths of the main body 31 and the conveyor module 33 refer to the dimensions in a third direction (refer to direction e3 in the attached figure). This third direction intersects the vertical direction and is perpendicular to the first direction. By including a main body 31 and a conveying module 33 disposed on the main body 31, and making the width of the main body 31 larger, the rigidity of the conveying line 30 is improved, which can reduce deformation or shaking during the conveying of the battery pack 400 by the conveying line 30, making the conveying process of the battery pack 400 more stable.

[0147] For example, when the conveyor line 30 moves upward so that the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface 302 of the Mth receiving layer 301 to a preset protrusion height, the main line body 31 is located below the Mth receiving layer 301. This allows the wider main line body 31 to be located in the Mth receiving layer 301, while allowing the narrower conveyor module 33 to pass upward through the clearance opening 304 on the bottom surface of the Mth receiving layer 301. This reduces the vertical space occupied by the conveyor line 30 in the Mth receiving layer 301, while allowing the narrower conveyor module 33 to pass through the clearance opening 304 on the bottom surface of the Mth receiving layer 301 more smoothly. This reduces the probability of interference with the battery frame 300 during the upward movement of the conveyor line 30 until the placement surface 3311 of the conveyor line 30 protrudes upward from the support surface 302 of the Mth receiving layer 301 to a preset protrusion height.

[0148] Among them, reference Figure 9 and Figure 10 The two buffer support plates 55 of the aforementioned separate buffer mechanism 50 are located on both sides of the conveying module 33 along the width direction of the main body 31, and the two buffer support plates 55 are located above the main body 31. By placing the two buffer support plates 55 above the main body 31, the space above the main body 31 can be fully utilized. Since the width of the conveying module 33 is smaller than the width of the main body 31, there will be no interference with the conveying module 33. It also facilitates the contact between the buffer support plates 55 and the bottom surface of the battery pack 400, so as to drive the battery pack 400 to move up and down.

[0149] According to some embodiments of the present invention, with reference to Figures 9-12The lifting and conveying unit 20 includes a centering mechanism 57, which is located on the lifting frame 21 and is used to center the battery pack 400 supported on the buffer support plate 55. After the separation buffer mechanism 50 lifts the battery pack 400 upward away from the conveyor line 30, the centering mechanism 57 can adjust the position of the battery pack 400 in the width direction of the conveyor line 30 so that the battery pack 400 is in a centered position. In this way, when the separation buffer mechanism 50 subsequently transfers the battery pack 400 downward to the conveyor line 30, the battery pack 400 can be positioned in a centered position in the width direction of the conveyor line 30. This ensures that when the conveyor line 30 subsequently conveys the battery pack 400 into the battery frame 300, the battery pack 400 is positioned in a preset position within the battery frame 300, preventing the battery pack 400 from being misaligned in the width direction of the conveyor line 30.

[0150] In addition, after the battery pack 400 is lifted upward away from the conveyor line 30 by the separation buffer mechanism 50, the position of the battery pack 400 in the width direction of the conveyor line 30 is adjusted by the centering mechanism 57, instead of adjusting the position of the battery pack 400 in the width direction of the conveyor line 30 directly on the conveyor line 30. This can reduce the difficulty of adjustment and improve the accuracy of adjustment.

[0151] According to some embodiments of the present invention, with reference to Figure 10 The upper surface of the buffer support plate 55 includes a buffer support surface 551 for supporting the battery pack 400. The buffer support surface 551 is a self-lubricating surface. When the battery pack 400 is supported on the buffer support plate 55, the bottom surface of the battery pack 400 supports and contacts the buffer support surface 551 of the buffer support plate 55. By setting the buffer support surface 551 as a self-lubricating surface, the friction between the battery pack 400 and the buffer support plate 55 can be further reduced during the alignment process of the battery pack 400 supported on the buffer support plate 55 using the alignment mechanism 57 described above. This further reduces the difficulty of aligning and adjusting the battery pack 400 and improves the accuracy of the alignment.

[0152] According to some embodiments of the present invention, with reference to Figures 9-12The centering mechanism 57 includes a centering motor 571 and multiple centering adjustment components 572. These components are divided into two groups, located on opposite sides of the width of the conveyor line 30. Each centering adjustment component 572 includes an adjustment rod 5721 and an adjustment swing arm 5722. The swing arm 5722 is connected to the adjustment rod 5721 and is used to contact the battery pack 400. One end of the swing arm 5722 is connected to the adjustment rod 5721, and the other end is used to contact the battery pack 400 to move the battery pack 400, thereby adjusting its position. The adjusting rod 5721 extends vertically and passes through the buffer support plate 55. The adjusting rod 5721 is rotatable horizontally relative to the buffer support plate 55, and the buffer support plate 55 is movable vertically relative to the adjusting rod 5721. This design allows for a compact structure and avoids interference between the adjusting rod 5721 and the buffer support plate 55. The centering motor 571 is driveably connected to the adjusting rod 5721 to drive the centering adjusting member 572 to rotate horizontally, thereby pushing the battery pack 400 to the centering position.

[0153] When the centering mechanism 57 is working, the centering motor 571 drives multiple centering adjustment components 572 to rotate in the horizontal direction, and the adjustment arm 5722 swings in the horizontal direction, thereby pushing the battery pack 400. The multiple centering adjustment components 572 together push the battery pack 400 to the centering position.

[0154] According to some embodiments of the present invention, with reference to Figures 9-12 The centering mechanism 57 includes a third chain drive mechanism 575 and two fourth chain drive mechanisms 576. The third chain drive mechanism 575 is arranged along the width direction of the conveyor line 30, and the two fourth chain drive mechanisms 576 are located on opposite sides of the width direction of the conveyor line 30. The centering motor 571 is located between the two fourth chain drive mechanisms 576 and is located on one side of the third chain drive mechanism 575 along the second direction.

[0155] Each set of centering adjustment components 572 comprises two components, designated as the first centering adjustment component 572 and the second centering adjustment component 572. The first and second centering adjustment components 572 are arranged along a second direction. The third chain drive mechanism 575 includes a third chain. The centering motor 571 is connected to the third chain via a gear drive mechanism 574. The third chain drive mechanism 575 drives two of the first centering adjustment components 572 in the two sets of centering adjustment components 572. Two sprockets of the third chain drive mechanism 575 are respectively mounted on the adjusting rods 5721 of the two first centering adjustment components 572 and fixed relative to the adjusting rods 5721 of the first centering adjustment components 572. The centering motor 571 drives the third chain drive mechanism 575 to move via the gear drive mechanism 574, and the third chain drive mechanism 575 drives the two first centering adjustment components 572 to rotate.

[0156] The fourth chain drive mechanism 576 is connected to the first and second centering adjustment members 572 in the same group of centering adjustment members 572. For example, a first transmission gear 573 can be set on the adjustment rod 5721 of the first centering adjustment member 572, and a second transmission gear 577 can be coaxially set on a sprocket in the fourth chain drive mechanism 576. The second transmission gear 577 meshes with the first transmission gear 573. By the meshing of the second transmission gear 577 with the first transmission gear 573, each first centering adjustment member 572 drives the corresponding fourth chain drive mechanism 576 to move, thereby driving the second centering adjustment member 572 to rotate.

[0157] According to some embodiments of the present invention, with reference to Figure 1 , Figure 3 , Figure 5 , Figures 18-23 The automatic assembly equipment 100 includes two frame positioning units 80, located on opposite sides of the conveyor track 200 in the width direction. The conveyor track 200 extends along a third direction and is used to transport the battery frame 300 to one side of the equipment stand 10 in the first direction. The width direction of the conveyor track 30 is consistent with the third direction. Through the conveyor track 200, a conveyor trolley 201 can travel on it. The battery frame 300 is placed on the conveyor trolley 201, and the trolley 201 moves along the conveyor track 200 to transport the battery frame 300 to one side of the equipment stand 10 in the first direction, facilitating the subsequent assembly of the battery pack 400 into the battery frame 300.

[0158] Each frame positioning unit 80 includes a frame support base 81, a frame support upper seat 82, and a frame separation mechanism 84. The frame support upper seat 82 is mounted on the frame support base 81 and supports the battery frame 300. The frame separation mechanism 84 is installed on the frame support base 81 and connected to the frame support upper seat 82. The frame separation mechanism 84 drives the frame support upper seat 82 to move vertically to transfer the battery frame 300 from the transport trolley 201 to the frame support upper seat 82. During the process of the transport trolley 201 transporting the battery frame 300 along the transport track 200 to one side of the equipment stand 10 along the first direction, the transport trolley 201 drives the battery frame 300 to move along the third direction to above the frame support upper seat 82. At this time, the battery frame 300 and the upper surface of the frame support upper seat 82 are spaced apart. Then, the frame separation mechanism 84 drives the frame support upper seat 82 to move upward, lifting the battery frame 300 away from the conveying trolley 201. After the conveying trolley 201 leaves, the frame separation mechanism 84 can drive the frame support upper seat 82 to fall back to the initial height position. In this way, during the subsequent assembly of the battery pack 400 into the battery frame 300, the center of gravity of the battery frame 300 is lower, and the assembly process is more stable.

[0159] By setting a frame positioning unit 80, which includes a frame support base 81, a frame support upper seat 82, and a frame separation mechanism 84, the battery frame 300 transported by the conveying trolley 201 can be easily transferred to the frame positioning unit 80. This allows the battery frame 300 to be supported on a more stable frame positioning unit 80, making the subsequent assembly of the battery pack 400 into the battery frame 300 more stable. On the other hand, it also allows the conveying trolley 201 to be fully utilized. For example, during the assembly of the battery pack 400 in the battery frame 300, the conveying trolley 201 can return and transport the next battery frame 300 to be assembled, or be used for other conveying purposes.

[0160] According to some embodiments of the present invention, with reference to Figures 18-23 The frame separation mechanism 84 includes a frame separation motor 841 and a drive block 842. The drive block 842 is slidably disposed on the frame support base 81 along a third direction and is located below the frame support upper seat 82. The frame separation motor 841 is connected to the drive block 842 to drive the drive block 842 to slide along a third direction. For example, the transmission structure between the frame separation motor 841 and the drive block 842 may include a belt drive mechanism and a lead screw mechanism. The output end of the frame separation motor 841 is connected to the lead screw of the lead screw mechanism through a belt drive mechanism, and the nut seat sleeved on the lead screw in the lead screw mechanism can be connected to the drive block 842.

[0161] The bottom surface of the frame support 82 is provided with a drive roller 83, which rolls in contact with the upper surface of the drive block 842. The upper surface of the drive block 842 includes a first drive support surface 843, a drive guide surface 844, and a second drive support surface 845 arranged sequentially along the conveying direction of the conveying track 200. The first drive support surface 843 and the second drive support surface 845 are both parallel to the horizontal plane, and the drive guide surface 844 extends obliquely upward in the direction from the second drive support surface 845 to the first drive support surface 843.

[0162] During the process of using the frame separation mechanism 84 to drive the frame support seat 82 to move upward and lift the battery frame 300 away from the conveying trolley 201, the frame separation motor 841 drives the drive block 842 to move in a third direction, and causes the drive roller 83 to roll in sequential contact with the second drive support surface 845, the drive guide surface 844 and the first drive support surface 843 on the drive block 842. During the contact between the drive roller 83 and the drive guide surface 844, the frame support seat 82 is driven to move upward.

[0163] After the conveyor trolley 201 leaves, during the process of the frame separation mechanism 84 driving the frame support upper seat 82 to fall to the initial height position, the frame separation motor 841 drives the drive block 842 to move along a third direction, and causes the drive roller 83 to roll into contact with the first drive support surface 843, the drive guide surface 844 and the second drive support surface 845 on the drive block 842 in sequence. During the contact between the drive roller 83 and the drive guide surface 844, the frame support upper seat 82 is driven to move downward.

[0164] According to some embodiments of the present invention, with reference to Figures 18-23 Each frame positioning unit 80 includes a first positioning mechanism 85, which is located on the frame support upper seat 82. The first positioning mechanism 85 is used to limit the upper position of the battery frame 300 in the conveying direction of the conveying track 200. During the process of the conveying trolley 201 conveying the battery frame 300 to one side of the equipment stand 10 along the first direction along the conveying track 200, the conveying trolley 201 drives the battery frame 300 to move along the third direction to above the frame support upper seat 82. The first positioning mechanism 85 is located on one side of the battery frame 300 along the conveying direction of the conveying track 200. The first positioning mechanism 85 contacts the battery frame 300 to limit the upper position of the battery frame 300 in the conveying direction of the conveying track 200, preventing the battery frame 300 from being transported off the trolley and over-positioned.

[0165] The first positioning mechanism 85 includes a first positioning motor 851 and a first positioning block 852. The first positioning block 852 is connected to the output end of the first positioning motor 851. A first positioning post 821 is provided on the upper surface of the frame support upper seat 82. The first positioning block 852 and the first positioning post 821 are used to jointly limit the battery frame 300 in the third direction. The first positioning motor 851 can drive the first positioning block 852 to move along the third direction, so that the first positioning block 852 moves to a suitable position, thereby making the first positioning block 852 abut against the battery frame 300 supported on the frame support upper seat 82 in the third direction, and the first positioning post 821 abut against the battery frame 300 supported on the frame support upper seat 82 in the third direction. The first positioning block 852 and the first positioning post 821 are located on both sides of the battery frame 300 along the third direction, thereby limiting the battery frame 300 in the third direction. In this way, during the subsequent assembly of the battery pack 400 into the battery frame 300, the battery frame 300 can be better kept in the set position. The frame positioning unit 80 locks the battery frame 300 to prevent swaying and for precise positioning.

[0166] According to some embodiments of the present invention, with reference to Figures 18-23 One frame positioning unit 80 includes a second positioning mechanism 86, and the other frame positioning unit 80 includes a second positioning post 822. The second positioning mechanism 86 includes a second positioning motor 861 and a second positioning block 862. The second positioning block 862 is connected to the output end of the second positioning motor 861. The second positioning post 822 is disposed on the upper surface of the frame support upper seat 82. One of the second positioning block 862 and the second positioning post 822 is used to limit the upper position of the battery frame 300 in a first direction, and the other is used to limit the upper position of the battery frame 300 in a second direction. The second positioning block 862 can be driven by the second positioning motor 861 to move along the first direction or the second direction, so that the second positioning block 862 moves to a suitable position, thereby abutting against the battery frame 300 supported on the frame support upper seat 82 in the first direction or the second direction.

[0167] The second positioning motor 861 drives the second positioning block 862 to move to the appropriate position. Not only does the second positioning block 862 abut against the battery frame 300 supported on the frame support upper seat 82 in the first or second direction, but the positioning post and the second positioning block 862 also abut against the battery frame 300 supported on the frame support upper seat 82 in the first or second direction. The positioning post and the second positioning block 862 limit the battery frame 300 on both sides along the length of the conveyor line 30. This ensures that the battery frame 300 is well maintained in the set position during the subsequent assembly of the battery pack 400 into the battery frame 300.

[0168] According to some embodiments of the present invention, with reference to Figures 1-5 The automatic assembly equipment 100 includes a preliminary positioning component, which includes multiple preliminary positioning mechanisms 60. When the conveyor line 30 is in the first position, the multiple preliminary positioning mechanisms 60 are distributed on both sides of the width direction of the conveyor line 30. The upper end of the preliminary positioning mechanism 60 forms a guide positioning surface 621 on the side facing the conveyor line 30. The guide positioning surface 621 is higher than the upper surface of the conveyor line 30. The guide positioning surface 621 is used to guide the battery pack 400 to be placed on the conveyor line 30.

[0169] When the conveyor line 30 is in the first position, the battery pack 400 can be placed on the conveyor line 30. For example, the battery pack 400 can be placed on the conveyor line 30 by manual operation of a lifting device or a main robotic arm. The battery pack 400 can be initially positioned by multiple initial positioning mechanisms 60 of the initial positioning assembly. During the process of placing the battery pack 400 on the conveyor line 30, the battery pack 400 is placed downwards from above the conveyor line 30. During this process, the guide positioning surfaces 621 of the multiple initial positioning mechanisms 60 can guide the battery pack 400 downwards onto the conveyor line 30 and perform initial positioning of the battery pack 400 in the width direction of the conveyor line 30.

[0170] According to some embodiments of the present invention, with reference to Figures 1-5 The guide positioning surface 621 includes a guide portion 6211 and a positioning portion 6212. The guide portion 6211 is connected to the upper side of the positioning portion 6212, and the positioning portion 6212 extends vertically. The guide portion 6211 extends obliquely towards the conveyor line 30 in a downward direction. By setting the guide positioning surface 621 to include the aforementioned guide portion 6211 and positioning portion 6212, during the process of placing the battery pack 400 onto the conveyor line 30, the battery pack 400 is placed downwards onto the conveyor line 30 from above. During this process, the battery pack 400 is guided downwards and onto the conveyor line 30 by the guide portion 6211 of the multiple initial positioning mechanisms 60. When the battery pack 400 is placed on the conveyor line 30, the positioning portion 6212 of the multiple initial positioning mechanisms 60 can perform initial positioning of the battery pack 400 in the width direction of the conveyor line 30.

[0171] According to some embodiments of the present invention, with reference to Figures 1-5The initial positioning mechanism 60 includes a limiting column 61 and a guide positioning component 62. The upper surface of the limiting column 61 is higher than the upper surface of the conveyor line 30, and the guide positioning component 62 forms a guide positioning surface 621. This allows the guide positioning surface 621 to provide better guidance and positioning during the downward placement of the battery pack 400 onto the conveyor line 30. The guide positioning component 62 is detachably mounted on the upper surface of the limiting column 61. This detachable mounting facilitates the replacement and maintenance of the guide positioning component 62.

[0172] According to some embodiments of the present invention, with reference to Figures 1-5 The initial positioning mechanism 60 includes a limiting column 61 and a guide positioning component 62. The upper surface of the limiting column 61 is higher than the upper surface of the conveyor line 30, and the guide positioning component 62 has a guide positioning surface 621. This allows the guide positioning surface 621 to provide better guidance and positioning during the downward placement of the battery pack 400 onto the conveyor line 30. The position of the guide positioning component 62 in the width direction of the conveyor line 30 is adjustable. By making the position of the guide positioning component 62 in the width direction of the conveyor line 30 adjustable, the spacing between the guide positioning components 62 on both sides of the conveyor line 30 in the width direction can be adjusted according to the dimensions of the battery pack 400 in the width direction of the conveyor line 30, thus accommodating battery packs 400 of different sizes and making the initial positioning mechanism 60 more adaptable.

[0173] For example, when the width of the battery pack 400 in the width direction of the conveyor line 30 is large, the position of the guide positioning member 62 can be adjusted in a third direction away from the conveyor line 30, so that the spacing between the guide positioning members 62 on both sides of the conveyor line 30 in the width direction increases in the third direction; when the width of the battery pack 400 in the width direction of the conveyor line 30 is small, the position of the guide positioning member 62 can be adjusted in a third direction towards the conveyor line 30, so that the spacing between the guide positioning members 62 on both sides of the conveyor line 30 in the width direction decreases in the third direction. The third direction is consistent with the width direction of the conveyor line 30.

[0174] For example, in some embodiments of the present invention, reference is made to Figures 1-5The upper surface of the limiting column 61 is provided with multiple sets of first connecting hole groups 611, which are arranged at intervals along the width direction of the conveyor line 30. Each set of first connecting hole groups 611 includes at least one first connecting hole 612. The guide positioning member 62 is connected to the first connecting hole 612 in one of the sets of connecting holes by fasteners. By providing multiple sets of first connecting hole groups 611 arranged at intervals along the width direction of the conveyor line 30 on the upper surface of the limiting column 61, when the position of the guide positioning member 62 needs to be adjusted, the fasteners can be loosened, the guide positioning member 62 can be moved, and after the guide positioning member 62 is moved to the desired fixed position, the fasteners can be tightened to fix the guide positioning member 62 on the limiting column 61. Among them, the hole on the guide positioning member 62 that mates with the first connecting hole 612 is a third connecting hole 622, which can be an elongated hole extending along a third direction. Fasteners are inserted through the third connecting hole 622 and the first connecting hole 612, thereby fixing the guide positioning member 62 onto the limiting column 61.

[0175] According to some embodiments of the present invention, with reference to Figures 1-5 The conveyor line 30 has a first end 36 and a second end 37 disposed opposite to each other along the length direction of the conveyor line 30, for example, the first end 36 and the second end 37 are respectively connected to both sides of the main line body 31 along the length direction. The automatic assembly equipment 100 also includes an auxiliary support 63, which is disposed on one side of the equipment stand 10 along the second direction and is spaced apart from the equipment stand 10. The auxiliary support 63 is used to support the first end 36 of the conveyor line 30 when the conveyor line 30 is in the first position.

[0176] When the conveyor line 30 is in the first position, most of the conveyor line 30 is located on one side of the equipment stand 10 along the second direction. By setting the aforementioned auxiliary support 63 on one side of the equipment stand 10 along the second direction, the conveyor line 30 can be supported. Thus, when the conveyor line 30 is in the first position, the combined support of the lifting frame 21 and the auxiliary support 63 makes the conveyor line 30 more stable.

[0177] It should be noted that during the process of the conveyor line 30 moving from the first position to the second position, the first end 36 of the conveyor line 30 separates from the auxiliary support 63. During the process of the conveyor line 30 moving from the second position to the first position, the first end 36 of the conveyor line 30 gradually rests on the auxiliary support 63.

[0178] Optionally, the first end 36 can be detachably connected to the main line body 31, which facilitates the replacement and maintenance of the first end 36.

[0179] According to some embodiments of the present invention, with reference to Figures 1-5The first end 36 is provided with a first support roller 363, which is supported on the auxiliary support 63 and rolls in contact with the auxiliary support 63. The rotation axis of the first support roller 363 extends along the width direction of the conveyor line 30. By providing a first support roller 363 at the first end 36 and having it roll in contact with the auxiliary support 63, the first end 36 and the auxiliary support 63 are in rolling contact during the process of the conveyor line 30 moving from the first position to the second position or from the second position to the first position. This reduces friction and wear between the first end 36 and the auxiliary support 63 and makes the movement of the conveyor line 30 along the first or second direction smoother.

[0180] According to some embodiments of the present invention, with reference to Figures 1-5 The top of the auxiliary support 63 has a first support block 631. The upper surface of the first support block 631 includes a first support surface 632 and a first guide surface 633 arranged along a first direction. The first support surface 632 is parallel to the horizontal plane, and the first guide surface 633 extends downward in the first direction. The first support surface 632 is used to support the first support roller 363, and the first guide surface 633 is used to guide the first support roller 363 to roll into or out of the first support block 631.

[0181] When the conveyor line 30 is in the first position, the first support roller 363 is supported on the first support surface 632. During the process of the conveyor line 30 moving from the first position to the second position, the first support roller 363 at the first end 36 rolls into contact with the first support surface 632 and the first guide surface 633 in sequence. The first guide surface 633 guides the first support roller 363 to roll out of the first support block 631, thereby separating the first end 36 of the conveyor line 30 from the auxiliary support 63. During the process of the conveyor line 30 moving from the second position to the first position, the first support roller 363 at the first end 36 rolls into contact with the first guide surface 633 and the first support surface 632 in sequence. The first guide surface 633 guides the first support roller 363 to roll into the first support surface 632, thereby supporting the first end 36 of the conveyor line 30 on the first support surface 632 of the auxiliary support 63.

[0182] According to some embodiments of the present invention, with reference to Figures 1-5The first end 36 includes two first end 36 supports spaced apart along the width direction of the main line 31. Each first end 36 support includes two first support ribs 362 spaced apart along the width direction of the main line 31. A first support roller 363 is located between the two first support ribs 362 and is rotatably connected to the two first support ribs 362. By setting the first end 36 as two first end 36 supports spaced apart along the width direction of the main line 31, and each first end 36 support including two first support ribs 362 and a first support roller 363 disposed between the two first support ribs 362, the stability of the first end 36 and the auxiliary support 63 can be increased, thereby increasing the stability of the auxiliary support 63 supporting the conveyor line 30. Correspondingly, the top of the auxiliary support 63 has two first support blocks 631, which are spaced apart along the width direction of the conveyor line 30, and the two first support rollers 363 are respectively supported on the two first support blocks 631.

[0183] According to some embodiments of the present invention, with reference to Figure 1 , Figure 3 , Figure 5 , Figures 19-22 The conveyor line 30 has a first end 36 and a second end 37 disposed opposite to each other along the length direction of the conveyor line 30, for example, the first end 36 and the second end 37 are respectively connected to both sides of the main line body 31 along the length direction. The automatic assembly equipment 100 also includes an auxiliary follow-up unit 70, which is located on one side of the equipment stand 10 along the first direction. The auxiliary follow-up unit 70 is spaced apart from the equipment stand 10 to define a placement space for placing the battery frame 300 between the auxiliary follow-up unit 70 and the equipment stand 10. For example, the aforementioned conveyor track 200 and frame positioning unit 80 may be located between the auxiliary follow-up unit 70 and the equipment stand 10.

[0184] The auxiliary follow-up unit 70 includes an auxiliary support frame 71, an auxiliary support member 75, and an auxiliary drive mechanism 72. The auxiliary support member 75 is disposed on the auxiliary support frame 71, and the auxiliary drive mechanism 72 is disposed on the auxiliary support frame 71 and connected to the auxiliary support member 75 to drive the auxiliary support member 75 to move up and down. The auxiliary follow-up unit 70 is used to support the second end 37 of the conveyor line 30 through the auxiliary support member 75 when the conveyor line 30 is in the second position. When the conveyor line 30 moves from the first position to the second position, the second end 37 of the conveyor line 30 is located above the auxiliary support member 75 and spaced apart from it. The auxiliary drive mechanism 72 can drive the auxiliary support member 75 to move upward until it contacts the bottom surface of the second end 37 of the conveyor line 30 to support the second end 37. This provides auxiliary support for the conveyor line 30 and improves the stability of the conveyor line 30 in conveying the battery pack 400. During the process of the conveyor line 30 moving from the second position to the first position, the second end 37 separates from the auxiliary support member 75.

[0185] It should be noted that a clearance opening 305 is formed on the side of the battery frame 300 near the auxiliary follower unit 70 to allow the second end 37 to pass through the clearance opening 305 to the side of the battery frame 300 near the auxiliary follower unit 70 when the conveyor line 30 moves to the second position.

[0186] According to some embodiments of the present invention, the second end 37 is detachably connected to the main body 31, facilitating the replacement and maintenance of the second end 37. For example, second ends 37 of different sizes can be installed as needed to adapt to battery packs 400 of different sizes, or to battery frames 300 of different structures. For example, when the battery pack 400 has a larger size, a larger second end 37 can be used to provide more stable support. As another example, when the size of the clearance opening 305 on the side of the battery frame 300 near the auxiliary follow-up unit 70 is different, a second end 37 of a matching size can be used to ensure that the second end 37 can pass through the clearance opening 305 on the battery frame 300.

[0187] According to some embodiments of the present invention, with reference to Figures 19-24 The position of the second end 37 in the width direction of the conveyor line 30 is adjustable. This allows the position of the second end 37 to be adjusted according to the position of the clearance opening 305 on the battery frame 300, ensuring that the second end 37 can pass through the clearance opening 305. Therefore, the conveyor line 30 can be adapted to battery frames 300 with different structures.

[0188] According to some embodiments of the present invention, the position of the second end portion 37 in the vertical direction is adjustable. This allows the position of the second end portion 37 to be adjusted according to the position of the clearance opening 305 on the battery frame 300, ensuring that the second end portion 37 can pass through the clearance opening 305 on the battery frame 300. Consequently, the conveyor line 30 can be adapted to battery frames 300 with different structures.

[0189] According to some embodiments of the present invention, with reference to Figures 19-24 The second end 37 is provided with a second support roller 374, which is supported on the auxiliary support member 75 and rolls in contact with the auxiliary support member 75. The rotation axis of the second support roller 374 extends along the width direction of the conveyor line 30. By providing a second support roller 374 at the second end 37 and having it roll in contact with the auxiliary support member 75, the second end 37 and the auxiliary support member 75 are in rolling contact during the process of the conveyor line 30 moving from the first position to the second position or from the second position to the first position. This reduces friction and wear between the second end 37 and the auxiliary support member 75 and makes the movement of the conveyor line 30 along the first or second direction smoother.

[0190] According to some embodiments of the present invention, with reference to Figures 19-24 The auxiliary support member 75 includes an auxiliary support plate 76 and a second support block 77. The second support block 77 is disposed on the upper surface of the auxiliary support plate 76. The upper surface of the second support block 77 includes a second support surface 771 and a second guide surface 772 arranged along a second direction. The second support surface 771 is parallel to the horizontal plane, and the second guide surface 772 extends downward in the second direction. The second support surface 771 is used to support the second support roller 374, and the second guide surface 772 is used to guide the second support roller 374 to roll into or out of the second support block 77.

[0191] When the conveyor line 30 is in the second position, the second support roller 374 is supported on the second support surface 771. During the process of the conveyor line 30 moving from the second position to the first position, the second support roller 374 at the second end 37 rolls into contact with the second support surface 771 and the second guide surface 772 in sequence. The second guide surface 772 guides the second support roller 374 to roll out of the second support block 77, thereby separating the second end 37 of the conveyor line 30 from the auxiliary support member 75. During the process of the conveyor line 30 moving from the first position to the second position, the second support roller 374 at the second end 37 rolls into contact with the second guide surface 772 and the second support surface 771 in sequence. The second guide surface 772 guides the second support roller 374 to roll into the second support surface 771, thereby supporting the second end 37 of the conveyor line 30 on the second support surface 771 of the auxiliary support member 75.

[0192] According to some embodiments of the present invention, with reference to Figures 19-24 The second end 37 includes two second end 37 supports spaced apart along the width direction of the main line 31. Each second end 37 support includes two second support ribs 372 spaced apart along the width direction of the main line 31. A second support roller 374 is located between the two second support ribs 372 and is rotatably connected to the two second support ribs 372. By setting the second end 37 as two second end 37 supports spaced apart along the width direction of the main line 31, and each second end 37 support including two second support ribs 372 and a second support roller 374 disposed between the two second support ribs 372, the stability of the second end 37 and the auxiliary support member 75 can be increased, thereby increasing the stability of the auxiliary support member 75 supporting the conveyor line 30. Correspondingly, the auxiliary support plate 76 is provided with two second support blocks 77, which are spaced apart along the width direction of the conveyor line 30. The two second support rollers 374 are respectively supported on the two second support blocks 77.

[0193] According to some embodiments of the present invention, with reference to Figures 19-24 The conveyor line 30 includes a main body 31, with a first end 36 and a second end 37 respectively connected to opposite sides of the main body 31 along its length. The surface of the main body 31 near the second end 37 is provided with multiple sets of second connecting hole groups 311. The multiple sets of second connecting hole groups 311 are arranged at intervals along the width direction of the conveyor line 30. Each set of second connecting hole groups 311 includes at least one second connecting hole 312. The second end 37 is connected to the second connecting hole 312 in one set of second connecting hole groups 311 by fasteners.

[0194] For example, in some embodiments of the present invention, reference is made to Figures 19-24 The main body 31 has multiple sets of second connecting hole groups 311 on its surface near the second end 37. These groups are spaced apart along the width of the conveyor line 30. Each group includes at least one second connecting hole 312. The second end 37 is connected to the first connecting hole 612 in one of these groups via fasteners. By providing multiple sets of second connecting hole groups 311 spaced apart along the width of the conveyor line 30 on the surface of the main body 31 near the second end 37, the fasteners can be loosened to adjust the position of the second end 37. After moving the second end 37 to the desired position, the fasteners are tightened to fix the second end 37 to the main body 31. The hole on the second end 37 that mates with the first connecting hole 612 is a fourth connecting hole 373. Fasteners pass through the fourth connecting hole 373 and the second connecting hole 312, thereby fixing the second end 37 to the main body 31.

[0195] When the second end 37 includes the two second end 37 supports mentioned above, the positions of the two second end 37 supports are adjustable, and the spacing between the two second end 37 supports is adjustable to adapt to different battery frame 300 structures.

[0196] According to some embodiments of the present invention, with reference to Figure 3 and Figure 19 The auxiliary drive mechanism 72 includes an auxiliary drive motor 73 and a second lead screw mechanism 74. The second lead screw mechanism 74 includes a second lead screw 741 and a second nut seat 742. The second lead screw extends in the vertical direction, and the second nut seat 742 is sleeved on the second lead screw 741. The auxiliary drive motor 73 is mounted on the auxiliary support frame 71 and connected to the second lead screw to drive the second lead screw 741 to rotate. The auxiliary support member 75 is fixed to the second nut seat 742. When the auxiliary drive mechanism 72 drives the auxiliary support member 75 to move in the vertical direction, the auxiliary drive motor 73 drives the second lead screw 741 to rotate around its own axis. The second lead screw 741 drives the second nut seat 742 to move in the vertical direction, thereby driving the auxiliary support member 75 to move in the vertical direction.

[0197] According to some embodiments of the present invention, with reference to Figure 3 and Figure 19 A third linear guide rail 78 is provided between the auxiliary support member 75 and the auxiliary upright 71, and the third linear guide rail 78 extends in the vertical direction. By providing the third linear guide rail 78 between the auxiliary support member 75 and the auxiliary upright 71, the vertical movement of the auxiliary support member 75 can be guided, so that the auxiliary support member 75 can move vertically stably to stably support the second end 37.

[0198] According to a second aspect embodiment of the present invention, the assembly method of the power battery assembly utilizes the automatic assembly equipment 100 of the first aspect embodiment of the present invention to assemble the battery pack 400 into the battery frame 300.

[0199] The power battery assembly includes a battery frame 300 and multiple battery packs 400. The battery frame 300 has multiple receiving layers 301 arranged sequentially in a vertical direction. The battery packs 400 are received within the receiving layers 301. Each receiving layer 301 can receive one or more battery packs 400. When multiple battery packs 400 are received in each receiving layer 301, the multiple battery packs 400 received in each layer can be arranged along a first direction, which is perpendicular to the vertical direction. At least one side of each receiving layer 301 of the battery frame 300 along the first direction is open, so that the battery packs 400 can enter the receiving layer 301 through the opening 303. The conveyor line 30 for conveying the battery packs 400 can also be inserted into the receiving layer 301 through the side opening 303. At least a portion of the bottom surface of the receiving layer 301 has a clearance opening 304 for avoiding the conveyor line 30.

[0200] The battery frame 300 has multiple layers 301 arranged from top to bottom as the first to the Nth layer 301, where N ≥ 2 and N is an integer. For example, the value of N can be 2, 3, 4, 5, 6, 7, 8, etc. Among all the layers 301, the first layer 301 is located at the top, and the Nth layer 301 is located at the bottom. By setting multiple layers 301 arranged at intervals along the vertical direction, the space in the vertical direction can be fully utilized, allowing the battery frame 300 to accommodate a larger number of battery packs 400, which is beneficial to increasing the capacity of the power battery assembly.

[0201] The assembly method for the power battery assembly includes: sequentially assembling multiple battery packs 400 into the first to Nth receiving layers 301. During the assembly of the multiple battery packs 400 into the multiple receiving layers 301, the battery packs 400 are assembled into each receiving layer 301 in a top-to-bottom order. For example, the first receiving layer 301 is assembled first, then the second receiving layer 301, and so on, until the Nth receiving layer 301 is assembled. By assembling each receiving layer 301 in a top-to-bottom order, the assembly of a battery pack 400 in an upper receiving layer 301 will not affect the assembly of a battery pack 400 in a lower receiving layer 301.

[0202] The steps for assembling the battery pack 400 in each receiving layer 301 include:

[0203] Once the conveyor line 30 is determined to be in the first position, the battery pack 400 is placed on the conveyor line 30. For example, when the conveyor line 30 is in the first position, the first end 36 of the conveyor line 30 is supported by the aforementioned auxiliary support 63. For example, the battery pack 400 can be placed on the conveyor line 30 by manually operating the lifting device or the main robotic arm. The battery pack 400 can be initially positioned by the multiple initial positioning mechanisms 60 of the initial positioning component.

[0204] The conveyor line 30 transports the battery pack 400 toward the assembly position in a direction close to the battery frame 300. The conveyor line 30 transports the battery pack 400 along the first direction, causing the battery pack 400 to move toward the battery frame 300 until the battery pack 400 is transported to the assembly position. At this time, the battery pack 400 is still supported on the conveyor line 30. The conveyor line 30 and the battery pack 400 are both located on one side of the battery frame 300 along the first direction.

[0205] The lifting drive mechanism 43 drives the lifting frame 21 to rise and fall, thereby raising and lowering the conveyor line 30 to a height position matching the Mth receiving layer 301. By judging the height position of the Mth receiving layer 301, the height position of the conveyor line 30 is adjusted. For example, the conveyor line 30 can be raised to a height position matching the Mth receiving layer 301, or the conveyor line 30 can be lowered to a height position matching the Mth receiving layer 301. When the conveyor line 30 is raised and lowered to a height position matching the Mth receiving layer 301, the first conveying section 3a of the conveyor line 30 can be inserted into the battery frame 300 along the first direction and located below the Mth receiving layer 301. For example, the upper surface of the conveyor line 30 is lower than the bottom surface of the Mth receiving layer 301 and adjacent to the Mth receiving layer 301.

[0206] The separation buffer mechanism 50 lifts the battery pack 400 upwards to separate it from the conveyor line 30. After separating the battery pack 400 from the conveyor line 30, it is convenient to insert the conveyor line 30 into the battery frame 300 along the first direction. During the process of driving the conveyor line 30 to insert into the battery frame 300 along the first direction, the conveyor line 30 is in an unloaded state, which requires less driving force, thus reducing energy loss. It can also reduce the impact of the conveyor line 30 on the battery pack 400 during its movement along the first direction. For example, it may cause the position of the battery pack 400 to change, resulting in inaccurate subsequent assembly of the battery pack 400. This helps to ensure the accuracy of the battery pack 400 assembly. In addition, after the separation buffer mechanism 50 lifts the battery pack 400 upwards and separates it from the conveyor line 30, the centering mechanism 57 can adjust the battery pack 400 to the centering position.

[0207] The horizontal drive mechanism 41 drives the conveyor line 30 to move along the first direction to the second position, so that the first conveyor section 3a of the conveyor line 30 is inserted into the battery frame 300 along the first direction and is located below the Mth receiving layer 301, and the second conveyor section 3b of the conveyor line 30 is located outside the battery frame 300, 1≤M≤N and M is an integer. The second conveyor section 3b and the first conveyor section 3a are arranged sequentially along the first direction. Before the first conveyor section 3a of the conveyor line 30 is inserted into the battery frame 300 along the first direction, the entire conveyor line 30 can be located on one side of the battery frame 300 along the second direction.

[0208] The lifting drive mechanism 43 drives the lifting frame 21 to move upward, thereby moving the conveyor line 30 upward. This causes the placement surface 3311 of the conveyor line 30 to protrude upward beyond the support surface 302 of the Mth receiving layer 301 to a preset protrusion height. The entire conveyor line 30 moves upward, with a portion passing through the clearance opening 304 on the bottom surface of the Mth receiving layer 301. For example, the conveyor module 33 passes through the clearance opening 304 on the bottom surface of the Mth receiving layer 301, causing the placement surface 3311 of the conveyor line 30 to protrude upward beyond the support surface 302 of the Mth receiving layer 301 to a preset protrusion height. A portion of the conveyor line 30 is located below the Mth receiving layer 301, for example, the main line body 31 is located below the Mth receiving layer 301. The placement surface 3311 of the conveyor line 30 and the support surface 302 of the Mth receiving layer 301... Both are used to place and support the battery pack 400. The placement surface 3311 of the conveyor line 30 is located on the upper surface of the conveyor line 30, and the support surface 302 of the Mth accommodating layer 301 is located on the bottom surface of the Mth accommodating layer 301. The placement surface 3311 of the conveyor line 30 is higher than the support surface 302 of the Mth accommodating layer 301. The preset protrusion height is the height difference in the vertical direction between the placement surface 3311 of the conveyor line 30 and the support surface 302 of the Mth accommodating layer 301. In this way, during the subsequent process of the conveyor line 30 transporting the battery pack 400 into the Mth accommodating layer 301 along the first direction, interference between the battery pack 400 and the bottom structure 306 of the Mth accommodating layer 301, such as the support surface 302 of the Mth accommodating layer 301, can be avoided. This ensures that the conveyor line 30 can smoothly transport the battery pack 400 into the Mth accommodating layer 301 along the first direction. Part of the conveyor line 30 is still located below the Mth accommodating layer 301.

[0209] The separation buffer mechanism 50 drives the battery pack 400 downward to be supported on the second conveying section 3b of the conveying line 30. After the conveying line 30 is moved upward until the placement surface 3311 of the conveying line 30 protrudes upward from the support surface 302 of the M receiving layer 301 to a preset protrusion height, the separation buffer mechanism 50 transfers the battery pack 400 downward to the second conveying section 3b of the conveying line 30. In this way, the conveying line 30 is in an unloaded state during the upward movement of the conveying line 30, and the requirement for driving force is low, which can reduce energy loss. It can also reduce the impact of the upward movement of the conveying line 30 on the battery pack 400. For example, it may cause the position of the battery pack 400 to change, resulting in the subsequent assembly position of the battery pack 400 being inaccurate. This helps to ensure the accuracy of the battery pack 400 assembly.

[0210] The conveyor line 30 conveys the battery pack 400 placed on the second conveyor section 3b to the first conveyor section 3a, so as to convey the battery pack 400 to a preset position in the Mth receiving layer 301. For example, the conveyor drive mechanism 32 drives the conveyor module 33 to move, so as to move the battery pack 400 along the first direction to the preset position in the Mth receiving layer 301.

[0211] The lifting drive mechanism 43 drives the lifting frame 21 to move downward, which in turn drives the conveyor line 30 to move downward, so as to transfer the battery pack 400 to be supported on the support surface 302 of the M-level receiving layer 301. During the downward movement of the conveyor line 30, the conveyor line 30 separates from the battery pack 400 and no longer supports the battery pack 400. At this time, the battery pack 400 automatically falls onto the support surface 302 of the M-level receiving layer 301 under its own gravity. Thus, by moving downward through the conveyor line 30, the battery pack 400 can be easily transferred to be supported on the support surface 302 of the M-level receiving layer 301. The conveyor line 30 can move downward until it does not interfere with the battery frame 300 when moving in the second direction. After the battery pack 400 is conveyed to the preset position in the M-level receiving layer 301, the battery pack 400 can be locked and fixed in the M-level receiving layer 301 by fasteners, etc.

[0212] The horizontal drive mechanism 41 drives the conveyor line 30 to move along the second direction to the first position to separate from the battery frame 300. The first conveying section 3a of the conveyor line 30 moves out of the battery frame 300, so that the entire conveyor line 30 moves along the second direction to one side of the battery frame 300 along the second direction, so as to facilitate the subsequent assembly of the lower receiving layer 301.

[0213] According to the assembly method of the power battery assembly of the present invention, during the assembly of the battery pack 400 of the Mth receiving layer 301, a portion of the conveyor line 30 is inserted into the battery frame 300 and located below the Mth receiving layer 301. The conveyor line 30 is then raised upwards until its placement surface 3311 protrudes upwards from the support surface 302 of the Mth receiving layer 301 to a preset protrusion height. Then, the battery pack 400 placed on another portion of the conveyor line 30 is conveyed to a preset position within the Mth receiving layer 301 via the conveyor line 30. The battery pack 400 moves downwards via the conveyor line 30, allowing it to be transferred and supported on the support surface 302 of the Mth receiving layer 301 under its own gravity. This allows the battery pack 400 to be automatically assembled into the preset position within the battery frame 300. Since the battery pack 400 is conveyed into the battery frame 300 using the conveyor line 30, automated assembly can be achieved, resulting in high assembly efficiency and saving manpower.

[0214] Furthermore, since the conveyor line 30 is inserted below the Mth receiving layer 301 during assembly, the conveyor line 30 itself does not occupy much of the height space within the Mth receiving layer 301. Even when the conveyor line 30 is raised until its placement surface 3311 protrudes above the support surface 302 of the Mth receiving layer 301 to a preset protrusion height, a portion of the conveyor line 30 still remains below the Mth receiving layer 301. This reduces the space occupied by the conveyor line 30 in the height of the Mth receiving layer 301, thus solving the problem of insufficient height of the receiving layer 301 preventing the use of [the conveyor line 30]. The automatic assembly of the conveyor line 30 can also reduce the limitations imposed by the height of the accommodating layer 301 on the structural dimensions of the conveyor line 30. This allows for a larger thickness of the conveyor line 30 in the vertical direction and a larger width, which improves the rigidity of the conveyor line 30 and reduces deformation or shaking during the transport of the battery pack 400. This makes the assembly process of the battery pack 400 more stable, and the more rigid conveyor line 30 can support the heavier battery pack 400.

[0215] In some embodiments of the present invention, the preset protrusion height ranges from 3mm to 8mm. For example, the preset protrusion height can be 3mm, 4mm, 5mm, 6mm, 7mm, or 8mm. By setting the preset protrusion height range to 3mm to 8mm, the possibility of interference between the conveyor line 30 and the battery frame 300 during the process of conveying the battery pack 400 to the receiving layer 301 due to an excessively small preset protrusion height can be avoided. This better ensures that the conveyor line 30 conveys the battery pack 400 into the receiving layer 301. Furthermore, it avoids the possibility of interference between the battery pack 400 and the top of the corresponding receiving layer 301 due to an excessively large preset protrusion height, which would result in the conveyor line 30 occupying too much space in the height direction of the receiving layer 301. It also avoids the limitation on the height dimension of the conveyed battery pack 400 due to occupying too much space in the height direction of the receiving layer 301.

[0216] In some embodiments of the present invention, reference is made to... Figure 3 The length direction of the battery pack 400 is aligned with the first direction, and each receiving layer 301 accommodates one battery pack 400. By aligning the length direction of the battery pack 400 with the first direction and the length direction of the conveyor line 30, it is convenient to place the battery pack 400 on the conveyor line 30 and to facilitate the conveyor line 30 to transport the battery pack 400 along the first direction into the battery frame 300. Furthermore, by accommodating one battery pack 400 per receiving layer 301, the space of each receiving layer 301 can be fully utilized, increasing the energy density of each receiving layer 301, thereby improving the energy density of the power battery assembly.

[0217] In some embodiments of the present invention, during the assembly of the battery pack 400 into the first to N-1th receiving layers 301, the first conveying segment 3a of the conveying line 30 is inserted into the (M+1)th receiving layer 301 of the battery frame 300 along a first direction. Each of the first to N-1th receiving layers 301 has a receiving layer 301 below it. Thus, during the assembly of the battery pack 400 into the first to N-1th receiving layers 301, the space of the lower receiving layer 301 located below and adjacent to the receiving layer 301 to be assembled can be fully utilized, allowing the conveying line 30 to be inserted into the lower receiving layer 301.

[0218] In some embodiments of the present invention, the bottom of the battery frame 300 has a clearance layer located below the Nth receiving layer 301. During the assembly of the battery pack 400 into the Nth receiving layer 301, the first conveying segment 3a of the conveyor line 30 is inserted into the clearance layer of the battery frame 300 along a first direction. For the Nth receiving layer 301 located at the bottom, by providing a clearance layer at the bottom of the battery frame 300 and below the Nth receiving layer 301, the conveyor line 30 can be inserted into the clearance layer during the assembly of the battery pack 400 into the Nth receiving layer 301. This allows the battery pack 400 to be assembled into the corresponding receiving layer 301 by lifting the conveyor line 30 from below as described above.

[0219] In some embodiments of the present invention, the height dimension of the clearance layer in the vertical direction is smaller than the height dimension of the receiving layer 301 in the vertical direction. For example, the height dimension of the clearance layer in the vertical direction can be slightly larger than the thickness dimension of the conveying line 30 in the vertical direction, so that the conveying line 30 can be smoothly inserted into the clearance layer and smoothly moved out of the clearance layer. For example, the height dimension of the clearance layer in the vertical direction can be half of the height dimension of the receiving layer 301 in the vertical direction. By making the height dimension of the clearance layer in the vertical direction smaller than the height dimension of the receiving layer 301 in the vertical direction, wasted space within the battery frame 300 can be avoided, making the structure of the battery frame 300 more compact.

[0220] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0221] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0222] In the description of this invention, "a plurality of" means two or more.

[0223] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0224] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0225] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0226] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An automatic assembly device, characterized in that, include: Equipment stand; A lifting and conveying unit, mounted on the equipment frame, includes a lifting frame, a conveyor line, and a horizontal drive mechanism. Both the conveyor line and the horizontal drive mechanism are located on the lifting frame. The conveyor line is used to convey battery packs. The horizontal drive mechanism is connected to the conveyor line and drives the conveyor line to move along a first direction or a second direction to engage or disengage with the battery frame. The conveying direction of the conveyor line is consistent with the first direction, which is perpendicular to the vertical direction. The second direction is opposite to the first direction. The conveyor line includes a main body, a conveying drive mechanism, and a conveying module. The conveying drive mechanism is located at the bottom of the main body. The conveying module is disposed on the main line body and is used to convey the battery pack. The conveying drive mechanism is connected to the conveying module to drive the conveying module to move. The conveying module has a placement surface for placing the battery pack. The placement surface protrudes from the main line body in an upward direction. The width of the main line body is greater than the width of the conveying module. The conveying line includes a plurality of the conveying modules. The plurality of conveying modules are arranged at intervals along the extension direction of the main line body. At least a portion of two adjacent conveying modules define a clearance space. The clearance space is used to avoid the bottom structure of the receiving layer in the battery frame. The receiving layer is used to receive the battery pack. A lifting drive mechanism is provided on the equipment frame and connected to the lifting frame to drive the lifting and conveying unit to move up and down. The conveyor line has a first position and a second position arranged along the first direction. When the conveyor line is in the first position, the conveyor line is separated from the battery frame. When the conveyor line is in the second position, the conveyor line is engaged with the battery frame. The lifting and conveying unit further includes a separation and buffer mechanism, which is disposed on the lifting frame. The separation and buffer mechanism is used to lift the battery pack placed on the conveying line upward away from the conveying line before the conveying line engages with the battery frame. The separation and buffer mechanism is also used to transfer the battery pack downward onto the conveying line when the conveying line engages with the battery frame and before the conveying line conveys the battery pack into the battery frame.

2. The automatic assembly equipment according to claim 1, characterized in that, The lifting frame is provided with multiple sets of lifting guide wheel sets, which are arranged at intervals along the circumference of the lifting frame. Each set of lifting guide wheel sets includes at least one lifting guide wheel. The equipment stand is provided with multiple lifting guide surfaces extending in the vertical direction. These multiple lifting guide surfaces are arranged at intervals along the circumference of the equipment stand. The lifting guide wheel makes rolling contact with the corresponding lifting guide surface.

3. The automatic assembly equipment according to claim 2, characterized in that, Each of the lifting guide surfaces includes two sub-guide surfaces arranged at an angle, each sub-guide surface extends in the vertical direction, each set of lifting guide wheels includes two lifting guide wheels, the central axes of the two lifting guide wheels in each set of lifting guide wheels are arranged at an angle, and the two lifting guide wheels in each set of lifting guide wheels are in rolling contact with the two sub-guide surfaces of the corresponding lifting guide surface.

4. The automatic assembly equipment according to claim 1, characterized in that, The lifting drive mechanism includes a lifting motor, a first drive shaft, a support shaft, and two first chain drive mechanisms. The lifting motor and the first drive shaft are located above the lifting conveying unit, and the support shaft is located below the lifting conveying unit. The first drive shaft and the support shaft both extend along a third direction. The width direction of the conveying line is consistent with the third direction. The lifting motor is connected to the first drive shaft to drive the first drive shaft to rotate. The first drive shaft is connected to the upper end of the two first chain drive mechanisms, and the support shaft is connected to the lower end of the two first chain drive mechanisms. Each first chain drive mechanism includes a first chain, and the two ends of the first chain in the length direction are spaced apart and both are connected to the lifting frame.

5. The automatic assembly equipment according to claim 1, characterized in that, The horizontal drive mechanism includes a horizontal drive motor, a rack and a first gear. The horizontal drive motor is located at the bottom of the lifting frame, the first gear is located at the output end of the horizontal drive motor, the rack is located at the bottom of the conveyor line and extends along the length of the conveyor line, and the first gear meshes with the rack.

6. The automatic assembly equipment according to claim 1, characterized in that, The conveying module includes a belt conveyor mechanism.

7. The automatic assembly equipment according to claim 6, characterized in that, Each of the conveying modules includes a connecting shaft and two belt conveying mechanisms. The two belt conveying mechanisms of each conveying module are disposed at both ends of the main line in the width direction. The connecting shaft extends along the width direction of the main line. The two belt conveying mechanisms are respectively connected to both ends of the connecting shaft. The conveying drive mechanism is drivenly connected to the connecting shaft.

8. The automatic assembly equipment according to claim 1, characterized in that, The conveying drive mechanism includes a conveying motor, multiple second drive shafts, and multiple belt drive mechanisms. The multiple second drive shafts are arranged at intervals along the extension direction of the main line body. Each second drive shaft extends along the width direction of the main line body. Adjacent two second drive shafts are connected by the belt drive mechanism. The conveying motor is connected to one of the second drive shafts. Each conveying module corresponds to one second drive shaft and is connected to the corresponding second drive shaft.

9. The automatic assembly equipment according to claim 1, characterized in that, The separation buffer mechanism includes a separation buffer motor and two buffer support plates. The two buffer support plates are located on both sides of the width direction of the conveyor line and are used to buffer and support the battery pack. The separation buffer motor is driveably connected to the buffer support plates to drive the buffer support plates to move in the up and down direction.

10. The automatic assembly equipment according to claim 9, characterized in that, The separation buffer mechanism includes a fourth gear, a second chain drive mechanism, and two first lead screw mechanisms. Each first lead screw mechanism includes a first lead screw and a first nut seat. The separation buffer motor is located on the top of the lifting frame. The second chain drive mechanism includes a second chain. The fourth gear is located at the output end of the separation buffer motor and meshes with the second chain. The first lead screws of the two first lead screw mechanisms are connected by the second chain drive mechanism. The buffer support plate is fixed to the first nut seat.

11. The automatic assembly equipment according to claim 10, characterized in that, The conveyor line includes a main body, a conveyor drive mechanism, and a conveyor module. The conveyor drive mechanism is located at the bottom of the main body, and the conveyor module is located on the main body and is used to convey the battery pack. The conveyor drive mechanism is connected to the conveyor module to drive the conveyor module to move. The conveyor module has a placement surface for placing the battery pack, and the placement surface protrudes from the main body in an upward direction. The width of the main body is greater than the width of the conveyor module. The two buffer support plates are located on both sides of the conveying module along the width direction of the main body and above the main body.

12. The automatic assembly equipment according to claim 1, characterized in that, The lifting and conveying unit includes a centering mechanism, which is located on the lifting frame and is used to center the battery pack supported on the buffer support plate.

13. The automatic assembly equipment according to claim 12, characterized in that, The upper surface of the buffer support plate includes a buffer support surface for supporting contact with the battery pack, and the buffer support surface is a self-lubricating surface.

14. The automatic assembly equipment according to claim 12, characterized in that, The centering mechanism includes a centering motor and multiple centering adjustment components. The multiple centering adjustment components are divided into two groups, and the two groups of centering adjustment components are located on both sides of the width direction of the conveyor line. Each of the centering adjustment components includes an adjustment rod and an adjustment swing arm. The adjustment swing arm is connected to the adjustment rod and is used to contact the battery pack. The adjustment rod extends vertically and passes through the buffer support plate. The adjustment rod is rotatable horizontally relative to the buffer support plate, and the buffer support plate is movable vertically relative to the adjustment rod. The centering motor is driveably connected to the adjustment rod to drive the centering adjustment component to rotate horizontally, thereby pushing the battery pack to the centering position.

15. The automatic assembly equipment according to claim 14, characterized in that, The centering mechanism includes a third chain drive mechanism and two fourth chain drive mechanisms. The third chain drive mechanism is arranged along the width direction of the conveyor line, and the two fourth chain drive mechanisms are located on opposite sides of the width direction of the conveyor line. The centering motor is located between the two fourth chain drive mechanisms and on one side of the third chain drive mechanism along the second direction. Each group of centering adjustment components consists of two components, which are designated as a first centering adjustment component and a second centering adjustment component. The first and second centering adjustment components are arranged along the second direction. The third chain drive mechanism includes a third chain. The centering motor is connected to the third chain via a gear drive mechanism. The third chain drive mechanism drives two of the first centering adjustment components in the two groups of centering adjustment components. The fourth chain drive mechanism drives the first and second centering adjustment components in the same group of centering adjustment components.

16. The automatic assembly equipment according to claim 1, characterized in that, The device includes two frame positioning units located on opposite sides of the width direction of the conveying track. The conveying track extends along a third direction and is used to convey the battery frame to one side of the device stand along the first direction. The width direction of the conveying line is consistent with the third direction. Each of the frame positioning units includes a frame support base, a frame support upper seat, and a frame separation mechanism. The frame support upper seat is disposed on the frame support base and is used to support the battery frame. The frame separation mechanism is installed on the frame support base and connected to the frame support upper seat. The frame separation mechanism is used to drive the frame support upper seat to move up and down to transfer the battery frame from the transport trolley to be supported on the frame support upper seat.

17. The automatic assembly equipment according to claim 16, characterized in that, The frame separation mechanism includes a frame separation motor and a drive block. The drive block is slidably disposed on the frame support base along the third direction and located below the frame support upper seat. The frame separation motor is connected to the drive block to drive the drive block to slide along the third direction. The bottom surface of the frame support upper seat is provided with a drive roller, and the drive roller makes rolling contact with the upper surface of the drive block. The upper surface of the drive block includes a first drive support surface, a drive guide surface, and a second drive support surface arranged sequentially along the conveying direction of the conveying track. The first drive support surface and the second drive support surface are both parallel to the horizontal plane, and the drive guide surface extends obliquely upward in the direction from the second drive support surface to the first drive support surface.

18. The automatic assembly equipment according to claim 16, characterized in that, Each of the frame positioning units includes a first positioning mechanism, which is located on the frame support upper seat and includes a first positioning motor and a first positioning block. The first positioning block is connected to the output end of the first positioning motor. The upper surface of the frame support upper seat is provided with a first positioning post. The first positioning block and the first positioning post are used to jointly limit the battery frame in the third direction. And / or, one of the frame positioning units includes a second positioning mechanism and the other frame positioning unit includes a second positioning post, the second positioning mechanism includes a second positioning motor and a second positioning block, the second positioning block is connected to the output end of the second positioning motor, the second positioning post is disposed on the upper surface of the frame support seat, one of the second positioning block and the second positioning post is used to limit the battery frame in the first direction and the other is used to limit the battery frame in the second direction.

19. The automatic assembly equipment according to claim 1, characterized in that, The device includes an initial positioning component, which comprises multiple initial positioning mechanisms. When the conveyor line is in the first position, the multiple initial positioning mechanisms are distributed on both sides of the width direction of the conveyor line. The upper end of each initial positioning mechanism has a guide positioning surface on one side facing the conveyor line. The guide positioning surface is higher than the upper surface of the conveyor line and is used to guide the battery pack to be placed on the conveyor line.

20. The automatic assembly equipment according to claim 19, characterized in that, The guide positioning surface includes a guide portion and a positioning portion. The guide portion is connected to the upper side of the positioning portion. The positioning portion extends in a vertical direction. The guide portion extends obliquely towards the direction close to the conveyor line in a top-to-bottom direction.

21. The automatic assembly equipment according to claim 19, characterized in that, The initial positioning mechanism includes a limiting column and a guide positioning component. The upper surface of the limiting column is higher than the upper surface of the conveyor line, and the guide positioning component forms the guide positioning surface. The guide positioning component is detachably disposed on the upper surface of the limiting column and / or the position of the guide positioning component is adjustable in the width direction of the conveyor line.

22. The automatic assembly equipment according to any one of claims 1-21, characterized in that, The conveyor line has a first end and a second end that are arranged opposite to each other along the length direction of the conveyor line. The automatic assembly equipment also includes an auxiliary support. The auxiliary support is disposed on one side of the equipment stand along the second direction and spaced apart from the equipment stand. The auxiliary support is used to support the first end of the conveyor line when the conveyor line is in the first position.

23. The automatic assembly equipment according to claim 22, characterized in that, The first end is provided with a first support roller, which is supported on the auxiliary bracket and rolls in contact with the auxiliary bracket. The rotation axis of the first support roller extends along the width direction of the conveyor line.

24. The automatic assembly equipment according to any one of claims 1-21, characterized in that, The conveyor line has a first end and a second end that are arranged opposite to each other along the length direction of the conveyor line. The automatic assembly equipment further includes an auxiliary follow-up unit, which is located on one side of the equipment stand along the first direction. The auxiliary follow-up unit is spaced apart from the equipment stand to define a placement space for placing the battery frame between the auxiliary follow-up unit and the equipment stand. The auxiliary follow-up unit includes an auxiliary stand, an auxiliary support member, and an auxiliary drive mechanism. The auxiliary support member is disposed on the auxiliary stand, and the auxiliary drive mechanism is disposed on the auxiliary stand and connected to the auxiliary support member to drive the auxiliary support member to move up and down. The auxiliary follow-up unit is used to support the second end of the conveyor line through the auxiliary support member when the conveyor line is in the second position.

25. The automatic assembly equipment according to claim 24, characterized in that, The auxiliary drive mechanism includes an auxiliary drive motor and a second lead screw mechanism. The second lead screw mechanism includes a second lead rod and a second nut seat. The second lead rod extends in the vertical direction, and the second nut seat is sleeved on the second lead rod. The auxiliary drive motor is located on the auxiliary support frame and connected to the second lead rod to drive the second lead rod to rotate. The auxiliary support is fixed to the second nut seat.

26. The automatic assembly equipment according to claim 24, characterized in that, The second end is provided with a second support roller, which is supported on the auxiliary support and rolls in contact with the auxiliary support. The rotation axis of the second support roller extends along the width direction of the conveyor line.

27. The automatic assembly equipment according to claim 24, characterized in that, The second end is detachable; and / or the position of the second end is adjustable in the width direction of the conveyor line or the position of the second end is adjustable in the vertical direction.

28. A method for assembling a power battery assembly, characterized in that, The assembly method uses an automatic assembly equipment according to any one of claims 1-27 to assemble the battery pack into the battery frame. The power battery assembly includes a battery frame and multiple battery packs. The battery frame has multiple layers of receiving layers arranged sequentially in the vertical direction. At least a portion of the receiving layers has a clearance opening on the bottom surface for avoiding the conveyor line. The battery packs are received in the receiving layers. The multiple receiving layers are, from top to bottom, the first to the Nth receiving layers, where N≥2 and N is an integer. The assembly method of the power battery assembly includes: sequentially assembling the multiple battery packs into the first to the Nth receiving layers. The step of assembling the battery pack in each of the receiving layers includes: Once the conveyor line is located at the first position, the battery pack is placed on the conveyor line. The conveyor line transports the battery pack toward the assembly position in a direction close to the battery frame; The lifting drive mechanism drives the lifting frame to rise and fall, thereby raising and lowering the conveyor line to a height position matching the Mth accommodating layer; The separation buffer mechanism lifts the battery pack upwards to separate it from the conveyor line; A horizontal drive mechanism drives the conveyor line to move along the first direction to the second position, so that the first conveying segment of the conveyor line is inserted into the battery frame along the first direction and located below the Mth receiving layer, and the second conveying segment of the conveyor line is located outside the battery frame, 1≤M≤N and M is an integer, and the second conveying segment and the first conveying segment are arranged sequentially along the first direction; The lifting drive mechanism drives the lifting frame to move upward, which in turn drives the conveyor line to move upward, so that the placement surface of the conveyor line protrudes upward from the support surface of the Mth accommodating layer to a preset protrusion height. Part of the conveyor line is located below the Mth accommodating layer. Both the placement surface of the conveyor line and the support surface of the Mth accommodating layer are used to place and support the battery pack. The separation buffer mechanism drives the battery pack to move downwards onto the second conveying section supported by the conveyor line; The conveyor line transports the battery pack placed on the second conveyor section to the first conveyor section, so as to transport the battery pack to a preset position within the Mth receiving layer; The lifting drive mechanism drives the lifting frame to move downward, which in turn drives the conveyor line to move downward, so as to transfer and support the battery pack on the support surface of the Mth accommodating layer. The horizontal drive mechanism drives the conveyor line to move along the second direction to the first position to separate it from the battery frame.

Images