A battery welding assist device

Abstract

The application relates to the technical field of batteries, in particular to a battery welding auxiliary device which comprises a support frame, a first adjusting mechanism, a plurality of second adjusting mechanisms and a plurality of pressing pieces; the support frame is provided with a first containing space for containing a battery module; the first adjusting mechanism is connected to the support frame; the plurality of second adjusting mechanisms are connected to the first adjusting mechanism and are located on the same side of the first containing space in a third direction; one pressing piece is connected to one second adjusting mechanism and faces one side of the first containing space; each second adjusting mechanism is connected with a pressing piece; the first adjusting mechanism is configured to drive the plurality of second adjusting mechanisms to move along a first direction and a second direction, so as to realize synchronous coarse adjustment of the pressing pieces; the second adjusting mechanism is configured to drive the pressing pieces to move along the first direction, the second direction and the third direction, so as to realize independent fine adjustment of the pressing pieces, improve work efficiency and facilitate meeting the large-batch processing requirements of battery packs.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery welding auxiliary device. Background Technology

[0002] Before installing individual battery cells into the battery pack housing, multiple individual battery cells need to be connected in series or parallel to form a battery module. The individual battery cells in the battery module are arranged in rows. During the battery module assembly stage, connecting pieces need to be welded to the terminals of each row of battery cells to achieve conductive connection between the individual battery cells.

[0003] During the process of welding the connecting piece to the pole, an auxiliary device is needed to move the holding member. First, the holding member is adjusted to be directly above the pole, and then the holding member is driven to move down, thereby pressing the connecting piece onto the pole. After that, the welding device is used to weld the connecting piece onto the pole.

[0004] In the existing technology, in order to ensure that the clamping component can be aligned vertically with the terminal post and to ensure the positional accuracy of the clamping component, only one clamping component is set at the end of an auxiliary device, and the auxiliary device presses the connecting piece one by one. This method is inefficient and cannot meet the requirements of mass production of battery packs. Utility Model Content

[0005] The technical problem to be solved by this application is that the welding auxiliary device used to press the connecting piece onto the pole has low working efficiency in the prior art.

[0006] To address the aforementioned technical problems, the purpose of this application is to provide a battery welding auxiliary device having a first direction, a second direction, and a third direction arranged perpendicularly in pairs. The battery welding auxiliary device includes a support frame, a first adjustment mechanism, multiple second adjustment mechanisms, and multiple holding members. The support frame has a first accommodating space configured to accommodate a battery module. The first adjustment mechanism is connected to the support frame. The multiple second adjustment mechanisms are connected to the first adjustment mechanism, and are spaced apart in the first direction. The multiple second adjustment mechanisms are located on the same side of the first accommodating space in the third direction. A holding member is connected to the side of one of the second adjustment mechanisms facing the first accommodating space, and each second adjustment mechanism is connected to a holding member. The first adjustment mechanism is configured to drive the multiple second adjustment mechanisms to move along the first direction and the second direction. The second adjustment mechanisms are configured to drive the holding members to move along the first direction, the second direction, and the third direction.

[0007] In some embodiments, each second adjustment mechanism is connected to a plurality of holding members, and the holding members connected to the same second adjustment mechanism are arranged at intervals along a first direction.

[0008] In some embodiments, the second adjustment mechanism includes a first moving mechanism, a first mounting platform, a second moving mechanism, a second mounting platform, a third moving mechanism, and a third mounting platform; the first moving mechanism is connected to the side of the first adjustment mechanism away from the support frame, the first mounting platform is connected to the side of the first moving mechanism away from the first adjustment mechanism, and the first moving mechanism is configured to drive the first mounting platform to move along a third direction; the second moving mechanism is connected to the first mounting platform, the second mounting platform is connected to the side of the second moving mechanism away from the first mounting platform, and the second moving mechanism is configured to drive the second mounting platform to move along a first direction; the third moving mechanism is connected to the second mounting platform, the third mounting platform is connected to the side of the third moving mechanism away from the second mounting platform, and the third moving mechanism is configured to drive the third mounting platform to move along a second direction; a holding member is connected to the third mounting platform.

[0009] In some embodiments, the second adjustment mechanism further includes a clamping assembly, which includes a first drive member and a fourth mounting platform; the fourth mounting platform is connected to the side of the first moving mechanism away from the support frame, and in the third direction, the fourth mounting platform is arranged at a distance from the first mounting platform, and the fourth mounting platform is arranged on the side of the mounting platform away from the first receiving space; the first drive member includes a first fixing part and a first telescopic part, the first telescopic part being configured to be telescopic in the third direction; one of the first fixing part and the first telescopic part is connected to the fourth mounting platform, and the other is connected to the first mounting platform.

[0010] In some embodiments, the clamping assembly further includes a guide post and a guide sleeve, one of which is connected to a fourth mounting platform and the other is connected to a first mounting platform; the guide post extends in a third direction and the guide sleeve is slidably fitted onto the guide post.

[0011] In some embodiments, the second moving mechanism includes a second driving member, a connecting member, and a guide member; a second mounting platform is slidably connected to a first mounting platform along a first direction, the connecting member is connected to the second mounting platform, the connecting member has a guide groove, the length direction of the guide groove is inclined to the first direction and the second direction; the second driving member includes a second telescopic portion and a second fixed portion, the second telescopic portion is configured to be telescopic along the second direction, one of the second telescopic portion and the second fixed portion is connected to the first mounting platform, and the guide member is connected to the other of the second telescopic portion and the second fixed portion; one end of the guide member away from the second driving member is slidably disposed in the guide groove.

[0012] In some embodiments, the third mounting platform is slidably connected to the second mounting platform along the second direction; the third moving mechanism includes a third driving member, the third driving member includes a third telescopic part and a third fixing part, the third telescopic part is configured to be telescopic along the second direction, one of the third telescopic part and the third fixing part is connected to the second mounting platform, and the other of the third telescopic part and the third fixing part is connected to the third mounting platform.

[0013] In some embodiments, in the third direction, the third mounting platform and the second mounting platform are arranged at a distance from each other, and the distance between the third mounting platform and the second mounting platform in the third direction forms a second receiving space; at least a portion of the third telescopic portion and at least a portion of the third fixed portion are arranged in the second receiving space.

[0014] In some embodiments, the first adjustment mechanism includes a fourth moving mechanism, a fifth mounting platform, and a sixth mounting platform; the fourth moving mechanism is connected to a support frame, the fifth mounting platform is connected to the side of the fourth moving mechanism away from the support frame, and the fourth moving mechanism is configured to drive the fifth mounting platform to move in a second direction; the fifth moving mechanism is connected to the fifth mounting platform, the sixth mounting platform is connected to the side of the fifth moving mechanism away from the fifth mounting platform, and the fifth moving mechanism is configured to drive the sixth mounting platform to move in a first direction; each of the second adjustment mechanisms is connected to the sixth mounting platform.

[0015] In some embodiments, both the fourth and fifth moving mechanisms are linear modules.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: The battery welding auxiliary device of this application includes a support frame, a first adjustment mechanism, multiple second adjustment mechanisms, and multiple holding members. The support frame has a first receiving space for accommodating a battery module. The first adjustment mechanism is connected to the support frame, and the multiple second adjustment mechanisms are connected to the first adjustment mechanism. The multiple second adjustment mechanisms are located on the same side of the first receiving space in a third direction. A holding member is connected to the side of one of the second adjustment mechanisms facing the first receiving space. Since the multiple second adjustment mechanisms are spaced apart in the first direction, the holding members on the multiple second adjustment mechanisms are also spaced apart along the first direction. In use, the battery module is placed into the receiving space, and the multiple second adjustment mechanisms are driven to move along the first and second directions by the first adjustment mechanism. The positions of each second adjustment mechanism in the first and second directions can be adjusted synchronously, thereby adjusting the battery module's position. The positions of the clamping members arranged at intervals along the first direction in the first and second directions are such that each clamping member is opposite to a row of terminals in the third direction, enabling synchronous coarse adjustment of each clamping member. The second adjustment mechanism is configured to drive the clamping members to move along the first and second directions. Through each second adjustment mechanism, the position of each clamping member in the first and second directions can be finely adjusted so that one clamping member corresponds to one terminal in the third direction. The fine adjustment work of each second adjustment mechanism can also be carried out simultaneously. After the fine adjustment is completed, each clamping member can be driven to move along the third direction towards the terminal in the direction of the terminal. Each clamping member can simultaneously press the connecting piece arranged on the terminal onto the terminal. The overall operation time of pressing the connecting piece is shortened, the operation efficiency is improved, and it is beneficial to meet the requirements of mass production of battery packs. Attached Figure Description

[0017] Figure 1 This is a front view of the battery welding auxiliary device of this application after the battery module is placed into the first accommodating space; Figure 2 This is an isometric view of the battery welding auxiliary device of this application; Figure 3 This is a side view of the battery welding auxiliary device of this application; Figure 4 This is a top view of the battery welding auxiliary device of this application; Figure 5 This is a side view of the second adjustment mechanism; Figure 6 This is a side view of the second moving mechanism; Figure 7 This is a side view of the third moving mechanism; Figure 8 This is a side view of the clamping component; Figure 9 This is an isometric view of the second adjustment mechanism; Figure 10 This is the front view of the second adjustment mechanism; In the diagram, X represents the first direction, Y the second direction, Z the third direction, 100 the battery module, 101 the terminal post, 102 the main body, 1 the support frame, 11 the first accommodating space, 2 the first adjustment mechanism, 21 the fourth moving mechanism, 22 the fifth mounting platform, 23 the fifth moving mechanism, 24 the sixth mounting platform, 3 the second adjustment mechanism, 31 the first moving mechanism, 32 the first mounting platform, 33 the second moving mechanism, 331 the second driving component, 3311 the second fixing part, 3312 the second telescopic part, 332 the connecting component, 3321 the guide groove, 333 the guide component, and 33... 4. First guide rail; 335. First slider; 34. Second mounting platform; 35. Third moving mechanism; 351. Third driving component; 3511. Third fixing part; 3512. Third telescopic part; 352. Second guide rail; 353. Second slider; 36. Third mounting platform; 37. Pressing assembly; 371. First driving component; 3711. First fixing part; 3712. First telescopic part; 372. Fourth mounting platform; 373. Guide post; 374. Guide sleeve; 38. Second receiving space; 39. Third receiving space; 4. Holding component; 51. Seventh mounting platform; 52. Fastener; 53. Compression spring. Detailed Implementation

[0018] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0019] In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the embodiments of the application, "parallel" refers to a state in which the angle formed by two lines, a line and a surface, or a surface is -5° to 5°. "Perpendicular" refers to a state in which the angle formed by two lines, a line and a surface, or a surface is 85° to 95°. Equal distances, equal angles, or equal areas refer to a state in which the tolerance range is -1% to 1%.

[0023] like Figures 1 to 10As shown, a preferred embodiment of the battery welding auxiliary device of this application has a first direction X, a second direction Y, and a third direction Z arranged perpendicularly in pairs. The battery welding auxiliary device includes a support frame 1, a first adjustment mechanism 2, a plurality of second adjustment mechanisms 3, and a plurality of holding members 4. The support frame 1 has a first receiving space 11 for accommodating a battery module 100. The first adjustment mechanism 2 is connected to the support frame 1, and the plurality of second adjustment mechanisms 3 are connected to the first adjustment mechanism 2. The plurality of second adjustment mechanisms 3 are located on the same side of the first receiving space 11 in the third direction Z. A holding member 4 is connected to the side of a second adjustment mechanism 3 facing the first receiving space 11. Each second adjustment mechanism 3 is connected to a holding member 4. Since the plurality of second adjustment mechanisms 3 are spaced apart in the first direction X, the holding members 4 on the plurality of second adjustment mechanisms 3 are also spaced apart along the first direction X. The first adjustment mechanism 2 is configured to drive the plurality of second adjustment mechanisms 3 to move along the first direction X and the second direction Y. In use, the battery module 100 is placed into the receiving space, and the plurality of second adjustment mechanisms 3 are driven by the first adjustment mechanism 2 to move along the first direction X and the second direction Y. The movement of the second adjustment mechanism 3 in the first direction X and the second direction Y allows for the synchronous adjustment of the positions of each second adjustment mechanism 3 in the first direction X and the second direction Y, thereby adjusting the positions of each pressure member 4 arranged at intervals along the first direction X in the first direction X and the second direction Y, so that each pressure member 4 is opposite to a row of pole posts 101 in the third direction Z, achieving synchronous coarse adjustment of each pressure member 4; the second adjustment mechanism 3 is configured to drive the pressure member 4 to move along the first direction X and the second direction Y, and through each second adjustment mechanism 3, the positions of each pressure member 4 in the first direction X can be adjusted respectively. The position in the second direction Y is finely adjusted so that one clamping member 4 corresponds to one terminal post 101 in the third direction Z. The fine adjustment of each second adjustment mechanism 3 can also be carried out simultaneously. After the fine adjustment is completed, each clamping member 4 can be driven by each second adjustment mechanism 3 to move along the third direction Z toward the terminal post 101. Each clamping member 4 can simultaneously clamp the connecting piece arranged on the terminal post 101 to the terminal post 101. Therefore, the overall operation time of clamping the connecting piece is shortened, the operation efficiency is improved, and it is beneficial to meet the requirements of mass production of battery packs.

[0024] In some embodiments of this application, each second adjustment mechanism 3 is connected to multiple holding members 4, and the holding members 4 connected to the same second adjustment mechanism 3 are arranged at intervals along the first direction X. This arrangement allows a single second adjustment mechanism 3 to simultaneously drive multiple holding members 4 to adjust their positions. After fine-tuning, it can synchronously drive multiple holding members 4 to press against the connecting piece on the corresponding electrode post 101. Compared to an arrangement where a second adjustment mechanism 3 is connected to only one holding member 4, this arrangement reduces the number of second adjustment mechanisms 3 and lowers the processing cost of the battery welding auxiliary device.

[0025] In some embodiments of this application, such as Figure 5As shown, the second adjustment mechanism 3 includes a first moving mechanism 31, a first mounting platform 32, a second moving mechanism 33, a second mounting platform 34, a third moving mechanism 35, and a third mounting platform 36. The first moving mechanism 31 is connected to the side of the first adjustment mechanism 2 away from the support frame 1, and the first mounting platform 32 is connected to the side of the first moving mechanism 31 away from the first adjustment mechanism 2. The first moving mechanism 31 is configured to drive the first mounting platform 32 to move along a third direction Z. The second moving mechanism 33 is connected to the first mounting platform 32, and the second mounting platform 34 is connected to the side of the second moving mechanism 33 away from the first mounting platform 32. The second moving mechanism 33 is configured to drive the second mounting platform 34 to move along a first direction X. The third moving mechanism 35 is connected to the second mounting platform 34, and the third mounting platform 36 is connected to the side of the third moving mechanism 35 away from the second mounting platform 34. The third moving mechanism 35 is configured to drive the third mounting platform 36 to move along a second direction Y. The holding member 4 is connected to the third mounting platform 36. The first moving mechanism 31 can drive each pressing member 4 to synchronously move closer to or further away from the pole post 101, thereby adjusting the position of each pressing member 4 in the third direction Z. The second moving mechanism 33 can drive each pressing member 4 to move along the first direction X, thereby adjusting the position of each pressing member 4 in the first direction X. The third moving mechanism 35 can drive each pressing member 4 to move along the second direction Y, thereby adjusting the position of each pressing member 4 in the second direction Y. The first moving mechanism 31, the second moving mechanism 33, and the third moving mechanism 35 are arranged in series and connected sequentially in the third direction Z. In other embodiments of this application, the order in which the first moving mechanism 31, the second moving mechanism 33, and the third moving mechanism 35 are arranged in the third direction Z can be adjusted.

[0026] In some embodiments of this application, such as Figure 8As shown, the second adjustment mechanism 3 further includes a clamping assembly 37, which includes a first drive member 371 and a fourth mounting platform 372. The fourth mounting platform 372 is connected to the side of the first moving mechanism 31 away from the support frame 1. In the third direction Z, the fourth mounting platform 372 is arranged at a distance from the first mounting platform 32, and the fourth mounting platform 372 is arranged on the side of the mounting platform away from the first receiving space 11. The first drive member 371 includes a first fixing part 3711 and a first telescopic part 3712. The first telescopic part 3712 is configured to be able to telescopically extend and retract along the third direction Z. One of the first fixing part 3711 and the first telescopic part 3712 is connected to the fourth mounting platform 372, and the other is connected to the first mounting platform 32. When the clamping member 4 needs to press the connecting piece on the pole post 101, the first telescopic part 3712 extends, pushing the first mounting platform 32, which in turn drives the second moving mechanism 33, the third moving mechanism 35, and the clamping member 4 to move towards the connecting piece along the third direction Z, pressing the connecting piece onto the pole post 101. After the connecting piece is welded to the pole post 101, the first telescopic part 3712 shortens, pulling the first mounting platform 32, which in turn drives the second moving mechanism 33, the third moving mechanism 35, and the clamping member 4 away from the connecting piece along the third direction Z, releasing the clamping of the connecting piece. The function of the first moving mechanism 31 is to adjust the position of the clamping member 4 in the third direction Z. The first moving mechanism 31 moves the clamping member 4 along the third direction Z through intermediate components such as the first mounting platform 32, switching the clamping member 4 between a position away from and close to the pole post 101, rather than applying pressure to the clamping member 4 to achieve clamping. The first moving mechanism 31 can employ a lead screw slider or linear module with lower pressure control precision. The clamping assembly 37 provides pressure to the holding member 4 to achieve clamping. The first driving component 371, serving as the power source for the clamping assembly 37, can be a linear drive device with pressure adjustment capabilities, such as a pneumatic cylinder or hydraulic cylinder, to ensure that the clamping force on the holding member 4 is appropriate. That is, the first moving mechanism 31 has better stroke adjustment, resulting in a larger stroke and faster movement speed of the holding member 4 in the third direction Z; while the clamping assembly 37 has better pressure adjustment capability, enabling more stable and appropriate pressure on the holding member 4. In other embodiments of this application, the clamping assembly 37 may be omitted, and the clamping of the holding member 4 may be achieved using the first moving mechanism 31.

[0027] In some embodiments of this application, the clamping assembly 37 further includes a guide post 373 and a guide sleeve 374, one of which is connected to the fourth mounting platform 372 and the other is connected to the first mounting platform 32. The guide post 373 extends along a third direction Z, and the guide sleeve 374 is slidably sleeved on the guide post 373. The arrangement of the guide post 373 and the guide sleeve 374 can ensure that the pressure of the first driving member 371 can be accurately transmitted to the first mounting platform 32 along the third direction Z, thereby enabling the pressure to be accurately transmitted to the clamping member 4, further improving the control accuracy of the battery welding auxiliary device of this application on the pressure received by the clamping member 4 when it is clamped on the electrode post 101.

[0028] In some embodiments of this application, such as Figure 6As shown, the second moving mechanism 33 includes a second driving member 331, a connecting member 332, and a guide member 333; a first guide rail 334 is fixed on the side of the second mounting platform 34 facing the holding member 4 in the third direction Z. The length direction of the first guide rail 334 is arranged along the first direction X. A first slider 335 is slidably connected to the first guide rail 334. The second mounting platform 34 is fixedly connected to the first slider 335, so that the second mounting platform 34 is slidably connected to the first mounting platform 32 along the first direction X. The connecting member 332 is connected to the second mounting platform 34 and has a guide groove. 3321, the length direction of the guide groove 3321 is inclined to the first direction X and the second direction Y; the second driving member 331 includes a second telescopic part 3312 and a second fixed part 3311, the second telescopic part 3312 is configured to be telescopic along the second direction Y, one of the second telescopic part 3312 and the second fixed part 3311 is connected to the first mounting platform 32, and the guide member 333 is connected to the other of the second telescopic part 3312 and the second fixed part 3311; the end of the guide member 333 away from the second driving member 331 is slidably disposed in the guide groove 3321. When the second telescopic part 3312 extends or retracts along the second direction Y, the guide member 333 connected to the telescopic part moves synchronously along the second direction Y with the telescopic part. Since the other end of the guide member 333 is stuck in the inclined guide groove 3321, and the guide groove 3321 is provided on the connector 332 fixed on the second mounting platform 34, the displacement of the guide member 333 in the second direction Y is converted into the displacement of the connector 332 in the first direction X by the inclined groove, thereby causing the second mounting platform 34 to slide along the first direction X, thereby realizing the position adjustment of the third moving mechanism 35 and the holding member 4 in the first direction X. This configuration, compared to directly using a linear drive mechanism along the first direction X as the second moving mechanism 33, saves the space required for the second moving mechanism 33 in the first direction X, thereby reducing the space occupied by a single second adjusting mechanism 3 in the first direction X, which is particularly suitable for battery welding. This is because the battery pack includes multiple battery cells arranged sequentially in the first direction X, each battery cell having a terminal post 101, and each terminal post 101 requiring a welded connecting piece. The spacing between adjacent terminal posts 101 in the first direction X is small, therefore the available space for a single second moving mechanism 33 in the first direction X is small, but the space available in the second direction Y is relatively ample. The second drive member 331 uses an electric telescopic rod, facilitating flexible and precise adjustment of the telescopic length of the second telescopic part 3312. Furthermore, each second adjusting mechanism 3 is connected to multiple holding members 4, which also increases the available space for a single second moving mechanism 33 in the first direction X.

[0029] In some embodiments of this application, such as Figure 7As shown, the second mounting platform 34 is connected to a second guide rail 352 on the side of the third direction Z facing the holding member 4. The length direction of the second guide rail 352 is arranged along the second direction Y. The second guide rail 352 is slidably connected to a second slider 353. The third mounting platform 36 is fixedly connected to the second slider 353, so that the third mounting platform 36 is slidably connected to the second mounting platform 34 along the second direction Y. The third moving mechanism 35 includes a third driving member 351. The third driving member 351 includes a third telescopic part 3512 and a third fixed part 3511. The third telescopic part 3512 is configured to be able to telescopically extend and retract along the second direction Y. One of the third telescopic part 3512 and the third fixed part 3511 is connected to the second mounting platform 34, and the other of the third telescopic part 3512 and the third fixed part 3511 is connected to the third mounting platform 36. Specifically, the third drive component 351 is also an electric push rod. The power direction of the third drive component 351 is along the second direction Y. The movement direction of the third mounting platform 36 is also the second direction Y. The third drive component 351 occupies less space in the first direction X.

[0030] In some embodiments of this application, such as Figure 10 As shown, in the third direction Z, the third mounting platform 36 and the second mounting platform 34 are arranged at intervals, and the interval between the third mounting platform 36 and the second mounting platform 34 in the third direction Z forms a second receiving space 38; at least a portion of the third telescopic part 3512 and at least a portion of the third fixing part 3511 are arranged in the second receiving space 38. This arrangement causes the space occupied by the third mounting platform 36 in the first direction X and the space occupied by the third driving member 351 in the first direction X to at least partially overlap, further reducing the space occupied by a single second adjusting mechanism 3 in the first direction X.

[0031] In some embodiments of this application, the third driving member 351 and the second guide rail 352 are arranged at a distance in the first direction X, and both the third driving member 351 and the second guide rail 352 are disposed in the second receiving space 38. In other embodiments of this application, the third driving member 351 and the third mounting platform 36 may be arranged at a distance in the first direction X, and the second guide rail 352 may also be disposed on the periphery of the second mounting platform 34.

[0032] In some embodiments of this application, such as Figure 10 As shown, the fourth mounting platform 372 and the first mounting platform 32 are arranged at a distance from each other in the third direction Z, forming a third receiving space 39 between them. The second driving member 331 is arranged in the third receiving space 39, and the second driving member 331 and the guide sleeve 374 are arranged at a distance from each other in the first direction X. Compared with setting the second driving member 331 to be arranged at a distance or staggered from the first mounting platform 32 in the first direction X, this arrangement can ensure the space occupied by the second adjusting mechanism 3 in the first direction X.

[0033] In some embodiments of this application, such as Figure 5 , Figure 10 As shown, the battery welding auxiliary device also includes a seventh mounting platform 51, a fastener 52, and a compression spring 53. The fastener 52 is slidably inserted through the third mounting platform 36 along the third direction Z. The seventh mounting platform 51 is connected to the fastener 52, and the seventh mounting platform 51 and the third mounting platform 36 are spaced apart along the third direction Z. The compression spring 53 is sleeved on the outside of the fastener 52. Along the third direction Z, one side of the compression spring 53 abuts against the third mounting platform 36, and the other side abuts against the seventh mounting platform 51. The compression spring 53 can apply an elastic force along the third direction Z to the seventh mounting platform 51. The holding member 4 is connected to the side of the seventh mounting platform 51 away from the third mounting platform 36. The buffering effect of the compression spring 53 can prevent the holding member 4 from impacting the connecting piece, making the holding force of the holding member 4 on the connecting piece more stable.

[0034] In some embodiments of this application, such as Figure 1 As shown, the first adjustment mechanism 2 includes a fourth moving mechanism 21, a fifth mounting platform 22, a fifth moving mechanism 23, and a sixth mounting platform 24. The fourth moving mechanism 21 is connected to the support frame 1, serving as the support base for the entire first adjustment mechanism 2. The fifth mounting platform 22 is connected to the side of the fourth moving mechanism 21 away from the support frame 1, and the fifth mounting platform 22 is the driving object of the fourth moving mechanism 21. The fourth moving mechanism 21 is configured to drive the fifth mounting platform 22 to move along the second direction Y. The fifth moving mechanism 23 is connected to the fifth mounting platform 22, and the sixth mounting platform 24 is connected to the side of the fifth moving mechanism 23 away from the fifth mounting platform 22. The sixth mounting platform 24 is the final output end of the first adjustment mechanism 2, and the fifth moving mechanism 23 is configured to drive the sixth mounting platform 24 to move along the first direction X. Each of the second adjustment mechanisms 3 is connected to the sixth mounting platform 24, so the movement of the sixth mounting platform 24 will drive all the second adjustment mechanisms 3 to move synchronously. In other embodiments of this application, the driving direction of the fourth moving mechanism 21 and the driving direction of the fifth mounting platform 22 can be interchanged. That is, the fourth moving mechanism 21 is configured to drive the fifth mounting platform 22 to move along the first direction X, and the fifth moving mechanism 23 is configured to drive the sixth mounting platform 24 to move along the second direction Y. The battery module 100 typically has multiple rows of battery cells in the second direction Y, and each row of battery cells includes multiple battery cells arranged along the first direction X. In use, the fourth moving mechanism 21 drives the fifth mounting platform 22 to move along the second direction Y, which can switch the holding member 4 to different rows of battery cells; the fifth moving mechanism 23 can adjust the overall position of the holding member 4 in the first direction X according to the length of each row of battery cells.

[0035] In some embodiments of this application, the fourth moving mechanism 21 and the fifth moving mechanism 23 are both linear modules. The linear modules have a large stroke and high adjustment accuracy, which can meet the requirements of adjustment accuracy and stroke.

[0036] In summary, the battery welding auxiliary device of this application, through the first adjustment mechanism 2 driving multiple second adjustment mechanisms 3 to move along the first direction X and the second direction Y, can synchronously adjust the position of each second adjustment mechanism 3 in the first direction X and the second direction Y, thereby adjusting the position of each holding member 4 arranged at intervals along the first direction X in the first direction X and the second direction Y, so that each holding member 4 is opposite to a row of electrode posts 101 in the third direction Z, realizing synchronous coarse adjustment of each holding member 4; the second adjustment mechanism 3 is configured to drive the holding member 4 to move along the first direction X and the second direction Y, through each second adjustment mechanism 2 driving multiple second adjustment mechanisms 3 to move along the first direction X and the second direction Y, thereby synchronously adjusting the position of each holding member 4 in the first direction X and the second direction Y, thereby synchronously coarsely adjusting the position of each holding member 4 in the first direction X and the second direction Y. The mechanism 3 can finely adjust the position of each holding member 4 in the first direction X and the second direction Y, so that one holding member 4 corresponds to one pole post 101 in the third direction Z. The fine adjustment operation of each second adjustment mechanism 3 can also be carried out at the same time. After the fine adjustment is completed, each second adjustment mechanism 3 can simultaneously drive each holding member 4 to move along the third direction Z towards the pole post 101. Each holding member 4 can simultaneously press the connecting piece arranged on the pole post 101 onto the pole post 101. The overall operation time of pressing the connecting piece is shortened, the operation efficiency is improved, and it is conducive to meeting the requirements of mass production of battery packs.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A battery welding auxiliary device, characterized in that, Having a first direction (X), a second direction (Y) and a third direction (Z) arranged in pairs perpendicularly, the battery welding auxiliary device includes a support frame (1), a first adjustment mechanism (2), multiple second adjustment mechanisms (3) and multiple pressing members (4); The support frame (1) has a first receiving space (11) configured to accommodate a battery module; The first adjustment mechanism (2) is connected to the support frame (1); A plurality of second adjustment mechanisms (3) are connected to the first adjustment mechanism (2), the plurality of second adjustment mechanisms (3) are spaced apart in the first direction (X), and the plurality of second adjustment mechanisms (3) are located on the same side of the first accommodating space (11) in the third direction (Z); One of the pressing members (4) is connected to one of the second adjustment mechanisms (3) on the side facing the first receiving space (11), and each of the second adjustment mechanisms (3) is connected to the pressing member (4). The first adjustment mechanism (2) is configured to drive a plurality of second adjustment mechanisms (3) to move along the first direction (X) and the second direction (Y); the second adjustment mechanism (3) is configured to drive the pressure member (4) to move along the first direction (X), the second direction (Y) and the third direction (Z).

2. The battery welding auxiliary device according to claim 1, characterized in that, Each of the second adjustment mechanisms (3) is connected to a plurality of the holding members (4), and the holding members (4) connected to the same second adjustment mechanism (3) are arranged at intervals along the first direction (X).

3. The battery welding auxiliary device according to claim 1, characterized in that, The second adjustment mechanism (3) includes a first moving mechanism (31), a first mounting platform (32), a second moving mechanism (33), a second mounting platform (34), a third moving mechanism (35), and a third mounting platform (36); The first moving mechanism (31) is connected to the side of the first adjusting mechanism (2) away from the support frame (1), and the first mounting platform (32) is connected to the side of the first moving mechanism (31) away from the first adjusting mechanism (2). The first moving mechanism (31) is configured to drive the first mounting platform (32) to move along the third direction (Z). The second moving mechanism (33) is connected to the first mounting platform (32), and the second mounting platform (34) is connected to the side of the second moving mechanism (33) away from the first mounting platform (32). The second moving mechanism (33) is configured to drive the second mounting platform (34) to move along the first direction (X). The third moving mechanism (35) is connected to the second mounting platform (34), and the third mounting platform (36) is connected to the side of the third moving mechanism (35) away from the second mounting platform (34). The third moving mechanism (35) is configured to drive the third mounting platform (36) to move along the second direction (Y). The pressure member (4) is connected to the third mounting platform (36).

4. The battery welding auxiliary device according to claim 3, characterized in that, The second adjustment mechanism (3) further includes a clamping assembly (37), which includes a first drive member (371) and a fourth mounting platform (372). The fourth mounting platform (372) is connected to the side of the first moving mechanism (31) away from the support frame (1). In the third direction (Z), the fourth mounting platform (372) is arranged at a distance from the first mounting platform (32), and the fourth mounting platform (372) is arranged on the side of the first mounting platform (32) away from the first accommodating space (11). The first drive member (371) includes a first fixed part (3711) and a first telescopic part (3712), the first telescopic part (3712) being configured to extend and retract along the third direction (Z); one of the first fixed part (3711) and the first telescopic part (3712) is connected to the fourth mounting platform (372), and the other is connected to the first mounting platform (32).

5. The battery welding auxiliary device according to claim 4, characterized in that, The clamping assembly (37) further includes a guide post (373) and a guide sleeve (374), one of which is connected to the fourth mounting platform (372) and the other is connected to the first mounting platform (32); the guide post (373) extends along the third direction (Z) and the guide sleeve (374) is slidably sleeved on the guide post (373).

6. The battery welding auxiliary device according to claim 3, characterized in that, The second moving mechanism (33) includes a second driving member (331), a connecting member (332), and a guide member (333); The second mounting platform (34) is slidably connected to the first mounting platform (32) along the first direction (X), and the connector (332) is connected to the second mounting platform (34). The connector (332) has a guide groove (3321), and the length direction of the guide groove (3321) is inclined to the first direction (X) and the second direction (Y). The second drive member (331) includes a second telescopic part (3312) and a second fixed part (3311). The second telescopic part (3312) is configured to extend and retract along the second direction (Y). One of the second telescopic part (3312) and the second fixed part (3311) is connected to the first mounting platform (32). The guide member (333) is connected to the other of the second telescopic part (3312) and the second fixed part (3311). The end of the guide member (333) away from the second drive member (331) is slidably disposed in the guide groove (3321).

7. The battery welding auxiliary device according to claim 3, characterized in that, The third mounting platform (36) is slidably connected to the second mounting platform (34) along the second direction (Y); The third moving mechanism (35) includes a third driving member (351), which includes a third telescopic part (3512) and a third fixed part (3511). The third telescopic part (3512) is configured to extend and retract along the second direction (Y). One of the third telescopic part (3512) and the third fixed part (3511) is connected to the second mounting platform (34), and the other of the third telescopic part (3512) and the third fixed part (3511) is connected to the third mounting platform (36).

8. The battery welding auxiliary device according to claim 7, characterized in that, On the third direction (Z), the third mounting platform (36) and the second mounting platform (34) are arranged at intervals, and the interval between the third mounting platform (36) and the second mounting platform (34) on the third direction (Z) forms a second receiving space (38). At least a portion of the third telescopic portion (3512) and at least a portion of the third fixed portion (3511) are arranged in the second receiving space (38).

9. The battery welding auxiliary device according to claim 1, characterized in that, The first adjustment mechanism (2) includes a fourth moving mechanism (21), a fifth mounting platform (22), a fifth moving mechanism (23), and a sixth mounting platform (24); the fourth moving mechanism (21) is connected to the support frame (1), and the fifth mounting platform (22) is connected to the side of the fourth moving mechanism (21) away from the support frame (1), and the fourth moving mechanism (21) is configured to drive the fifth mounting platform (22) to move along the second direction (Y); The fifth moving mechanism (23) is connected to the fifth mounting platform (22), and the sixth mounting platform (24) is connected to the side of the fifth moving mechanism (23) away from the fifth mounting platform (22). The fifth moving mechanism (23) is configured to drive the sixth mounting platform (24) to move along the first direction (X). Each of the second adjustment mechanisms (3) is connected to the sixth mounting platform (24).

10. The battery welding auxiliary device according to claim 9, characterized in that, Both the fourth moving mechanism (21) and the fifth moving mechanism (23) are linear modules.

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