Deviation correcting device

Abstract

The invention discloses a deviation rectifying device, and relates to the technical field of cylindrical battery cell manufacturing, the deviation rectifying device comprises a bearing mechanism, a centering mechanism, a visual acquisition mechanism and a rotation driving mechanism, the bearing mechanism is rotatably arranged along a longitudinally extending axis and is used for bearing a plurality of fed battery shells; the centering mechanisms are arranged on the two sides of the bearing mechanism in the longitudinal direction and used for driving the battery shells to move to be flush in the longitudinal direction, and the visual collection mechanism is arranged on the side of the bearing mechanism in the longitudinal direction and located on the sides, away from the bearing mechanism, of the centering mechanisms. The visual collection mechanism is used for collecting position images of welding areas of all the battery shells, and the rotation driving mechanism is in driving connection with the bearing mechanisms and used for driving the corresponding bearing mechanisms to rotate along the longitudinally-extending axis according to the position images. Through the arrangement, the position of the welding area of the battery shell can be aligned with the battery cell, so that the welding quality of the battery shell and the battery cell is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cylindrical battery manufacturing, and in particular to a deviation correction device. Background Art

[0002] The battery shell of the existing cylindrical battery includes a single-pass shell and a double-pass shell. The positive and negative ends of the cylindrical battery using the double-pass shell need to be welded with a cover plate and a current collector. For the cylindrical battery using the single-pass shell, the positive current collector and the positive electrode cover are eliminated, and the chassis at the positive electrode of the battery shell is directly used as the positive current collector and the positive electrode cover, and is welded to the battery cell of the cylindrical battery as a whole.

[0003] However, when a single-pass shell is used, the angle of the shell chassis needs to be aligned with the angle of the positive terminal of the battery cell before welding, otherwise the welding quality between the shell and the battery cell will be affected, thereby increasing the defective rate of battery manufacturing. Summary of the invention

[0004] The main purpose of the present invention is to provide a correction device, which is designed to adjust the angle of the chassis of the battery shell before welding the chassis and the battery cell of the battery shell to align it with the angle of the positive terminal of the battery cell to ensure the welding quality.

[0005] To achieve the above-mentioned purpose, the present invention provides a correction device for correcting the cylindrical battery housing, wherein a first end of the battery housing is provided with a plurality of welding areas, wherein the welding areas are used for welding and connecting with the battery core, and the correction device comprises:

[0006] The bearing mechanism is rotatably arranged along the axis extending in the longitudinal direction, and is used to bear the plurality of battery shells fed thereto, and can drive each of the battery shells to rotate along the axis extending in the longitudinal direction;

[0007] A centering mechanism is provided on both sides of the carrying mechanism in the longitudinal direction, and is used to drive each of the battery housings to move in the longitudinal direction until they are flush;

[0008] A visual acquisition mechanism is provided on one side of the supporting mechanism along the longitudinal direction and is located on a side of the centering mechanism away from the supporting mechanism, and the visual acquisition mechanism is used to acquire a position image of the welding area of ​​each battery shell; and

[0009] The rotation driving mechanism is drivingly connected to the supporting mechanism and is used to drive the corresponding supporting mechanism to rotate along an axis extending longitudinally according to the position image.

[0010] In one embodiment, the supporting mechanism includes a plurality of supporting parts spaced apart along a transverse direction, each of the supporting parts includes two supporting wheels spaced apart along a transverse direction, both of the supporting wheels rotate along a longitudinally extending axis and are used to jointly support a first end of the battery housing.

[0011] In one embodiment, the rotation drive mechanism includes a plurality of rotation motors and transmission wheels arranged at intervals in the transverse direction, the output end of each of the rotation motors drives and connects two of the transmission wheels, the transmission wheels correspond to the load-bearing wheels one by one and are fixed with a connecting rod arranged in the longitudinal direction, so that the load-bearing wheels can rotate coaxially with the corresponding transmission wheels;

[0012] Wherein, the output end of the rotating motor is connected to the two rotating wheels through a synchronous belt drive.

[0013] In one embodiment, the supporting mechanism further includes auxiliary parts corresponding to the number of the supporting parts, each of the auxiliary parts includes two auxiliary wheels arranged at intervals in the transverse direction, each of the auxiliary wheels corresponds to a supporting wheel and is arranged opposite to each other in the longitudinal direction, and the two auxiliary wheels are used to jointly support the second end of a battery shell.

[0014] In one embodiment, a first rubber ring is sleeved on the peripheral side of each of the load-bearing wheels, and the first rubber ring is used to abut against the battery housing; and / or,

[0015] A second rubber ring is sleeved on the peripheral side surface of each auxiliary wheel, and the second rubber ring is used to abut against the battery housing.

[0016] In one embodiment, the visual acquisition mechanism includes:

[0017] A plurality of camera units are disposed on one side of each of the carrying parts along the longitudinal direction and on a side of the centering mechanism away from the carrying part, the camera units are used to capture an image of the first end of the battery housing on the corresponding carrying part; and

[0018] A plurality of light emitting parts are respectively arranged between each of the camera parts and the supporting mechanism, and avoid the collecting field of view of the corresponding camera part. Each of the light emitting parts is used for irradiating the first end of the battery shell on the corresponding supporting part.

[0019] In one embodiment, the centering mechanism comprises:

[0020] Two centering plates are arranged on both sides of the bearing mechanism in the longitudinal direction, and at least one of the centering plates is movably arranged in the longitudinal direction and is used to abut against one end of the battery housing in the longitudinal direction during the movement to drive the battery housing to move in the longitudinal direction; and

[0021] A linear drive mechanism is used to drive at least one of the centering plates to move longitudinally.

[0022] In one embodiment, the centering mechanism further includes a linear guide portion, and the linear guide portion is used to guide the movement of the output portion of the linear drive mechanism in the longitudinal direction.

[0023] In one embodiment, the deviation correction device further includes a transfer mechanism, and the transfer mechanism includes:

[0024] A transfer unit is disposed above the carrying mechanism and is movably arranged in a transverse direction; and

[0025] The clamping part is movably arranged on the transfer part along the vertical direction, and is used to clamp the battery shell after the rotation of the battery shell is completed, and transfer the battery shell to the next processing device.

[0026] In one embodiment, the deviation-correcting device further comprises a conveying mechanism, and the conveying mechanism is movably arranged in the lateral and vertical directions so that the battery casing can be transferred from the conveying mechanism to the carrying mechanism.

[0027] In the technical solution of the present invention, first, the bearing mechanism carries the multiple battery shells that are loaded, and then, the centering mechanism drives each of the battery shells to move in the longitudinal direction until they are flush, and the visual acquisition mechanism works to collect the position image of the welding area of ​​each battery shell to determine the angle that the battery shell corresponding to each position image needs to rotate, and then, the rotation drive mechanism works, and the rotation drive mechanism can drive the corresponding bearing mechanism to rotate the corresponding angle along the axis extending in the longitudinal direction according to the position image, and the bearing mechanism can drive each of the battery shells to rotate the corresponding angle along the axis extending in the longitudinal direction, thereby completing the angle adjustment of each battery shell. In this way, the angle of the first end of each battery shell can correspond to the angle of the battery cell, even if the positions of the multiple welding areas are aligned with the positions of the areas to be welded of the battery cell, thereby ensuring the subsequent welding quality of the battery shell and the battery cell, so as to improve the yield rate of battery manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of an embodiment (one direction) of the deviation correction device provided by the present invention;

[0030] Figure 2 for Figure 1 A partial enlarged view of the structure in the middle;

[0031] Figure 3A schematic structural diagram of an embodiment (another direction) of the deviation correction device provided by the present invention;

[0032] Figure 4 for Figure 3 A partial enlarged view of the middle part of the structure.

[0033] Description of Figure Numbers:

[0034] 100. Correction device; 1. Carrying mechanism; 11. Carrying part; 111. Carrying wheel; 12. Auxiliary part; 121. Auxiliary wheel; 13. First rubber ring; 14. Second rubber ring; 2. Centering mechanism; 21. Centering plate; 22. Linear drive mechanism; 23. Linear guide part; 3. Visual acquisition mechanism; 31. Camera part; 32. Light-emitting part; 4. Rotation drive mechanism; 41. Rotation motor; 42. Transmission wheel; 43. Connecting rod; 5. Transfer mechanism; 51. Transfer part; 52. Clamping part.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The present invention provides a deviation correction device, which is intended to adjust the angle of the chassis of the battery shell to align the angle of the positive terminal of the battery cell before welding the chassis of the battery shell and the battery cell, so as to ensure the welding quality.

[0040] See also Figure 1 In one embodiment of the present invention, the correction device 100 is used to correct the cylindrical battery shell. The first end of the battery shell is provided with multiple welding areas, and the welding areas are used to be welded and connected with the battery core. The correction device 100 includes a bearing mechanism 1, a centering mechanism 2, a visual acquisition mechanism 3 and a rotation drive mechanism 4. The bearing mechanism 1 is rotatably arranged along the axis extending in the longitudinal direction, and is used to carry the multiple battery shells loaded, and can drive each of the battery shells to rotate along the axis extending in the longitudinal direction respectively. The centering mechanism 2 is arranged on both sides of the bearing mechanism 1 in the longitudinal direction, and the centering mechanism 2 is used to drive each of the battery shells to move in the longitudinal direction until they are flush. The visual acquisition mechanism 3 is arranged on one side of the bearing mechanism 1 in the longitudinal direction, and is located on the side of the centering mechanism 2 away from the bearing mechanism 1. The visual acquisition mechanism 3 is used to collect the position image of the welding area of ​​each battery shell. The rotation drive mechanism 4 is drivingly connected to the bearing mechanism 1, and is used to drive the corresponding bearing mechanism 1 to rotate along the axis extending in the longitudinal direction according to the position image.

[0041] In the technical solution of the present invention, first, the carrying mechanism 1 carries the multiple battery shells that are loaded, and then the centering mechanism 2 drives each of the battery shells to move in the longitudinal direction until they are flush, and the visual acquisition mechanism 3 works to collect the position image of the welding area of ​​each battery shell to determine the angle that the battery shell corresponding to each position image needs to rotate, and then the rotation drive mechanism 4 works, and the rotation drive mechanism 4 can drive the corresponding carrying mechanism 1 to rotate the corresponding angle along the axis extending in the longitudinal direction according to the position image, and the carrying mechanism 1 can drive each of the battery shells to rotate the corresponding angle along the axis extending in the longitudinal direction, thereby completing the angle adjustment of each battery shell. In this way, the angle of the first end of each battery shell can correspond to the angle of the battery cell, even if the positions of the multiple welding areas are aligned with the positions of the areas to be welded of the battery cell, thereby ensuring the subsequent welding quality of the battery shell and the battery cell, so as to improve the yield rate of battery manufacturing.

[0042] It can be understood that the present invention does not limit the arrangement of the multiple battery shells on the supporting mechanism 1. For example, in one embodiment of the present invention, the multiple battery shells are arranged on the supporting mechanism 1 at intervals along the longitudinal direction. In this way, the visual acquisition mechanism 3 can sequentially capture the position images of the welding areas of the multiple battery shells.

[0043] In another embodiment of the present invention, a plurality of the battery shells are arranged at intervals along the lateral direction on the supporting mechanism 1. With such an arrangement, the visual acquisition mechanism 3 can sequentially acquire position images of the welding areas of the plurality of the battery shells along the lateral direction, and can also simultaneously acquire position images of the welding areas of the plurality of the battery shells arranged at intervals along the lateral direction.

[0044] In another embodiment of the present invention, a plurality of battery shells are arranged in an array in the horizontal direction and in the vertical direction on the supporting mechanism 1. With such an arrangement, the visual acquisition mechanism 3 can sequentially acquire the position images of a plurality of columns of the battery shells in the vertical direction.

[0045] Specifically, in this embodiment, a plurality of battery shells are arranged at intervals along the lateral direction on the carrying mechanism 1 , and the visual acquisition mechanism 3 simultaneously acquires the position images of the plurality of battery shells arranged at intervals along the lateral direction.

[0046] In order to ensure the accuracy of the visual acquisition mechanism 3 in simultaneously acquiring multiple position images, in a further embodiment of the present invention, the visual acquisition mechanism 3 includes multiple camera units 31, which are arranged on one side of each of the carrying parts 11 along the longitudinal direction and on the side of the centering mechanism 2 away from the carrying part 11, and the camera units 31 are used to acquire the image of the first end of the battery shell on the corresponding carrying part 11. In this way, each camera unit 31 is used to acquire an image of the first end of the battery shell, that is, the position image, and the one-to-one acquisition can further improve the accuracy of the image acquisition by the visual acquisition mechanism 3.

[0047] It should also be understood that when the camera unit 31 captures the image of the first end of the corresponding battery shell, the brightness at the first end of the battery shell will also affect the accuracy of the capture by the camera unit 31. Therefore, in a further embodiment of the present invention, the visual capture mechanism 3 also includes a plurality of light-emitting units 32, which are arranged between each of the camera units 31 and the supporting mechanism 1, and avoid the corresponding capturing field of view of the camera unit 31. Each of the light-emitting units 32 is used to illuminate the first end of the battery shell on the corresponding supporting part 11. Each of the light-emitting units 32 is used to illuminate the first end of a battery shell to increase the brightness at the first end of the battery shell. When the corresponding camera unit 31 captures the image of the first end of the battery shell, more accurate information can be obtained, thereby ensuring that the supporting mechanism 1 drives the rotation angle of the battery shell.

[0048] It can be understood that the present invention does not limit the specific structural form of the light-emitting portion 32. In one embodiment of the present invention, the light-emitting portion 32 can be set as a spherical light source; in another embodiment of the present invention, the light-emitting portion 32 can also be set as a strip light source; and in another embodiment of the present invention, the light-emitting portion 32 can also be set as an annular light source. In this way, the collecting field of view of the camera portion 31 passes through the inner ring of the annular light source, so as to achieve the avoidance setting of the annular light source to the collecting field of view of the camera portion 31.

[0049] Also, see Figure 3-4Since different battery shells have different angles to rotate, in order to enable the bearing mechanism 1 to simultaneously adjust the angles of multiple battery shells, in the present invention, the bearing mechanism 1 includes multiple bearing parts 11 arranged at intervals along the transverse direction, and each bearing part 11 includes two bearing wheels 111 arranged at intervals along the transverse direction, and both bearing wheels 111 rotate along the longitudinal axis and are used to jointly carry the first end of a battery shell. With such an arrangement, when the battery shell needs to be rotated to adjust the angle of the battery shell, the two bearing wheels 111 rotate together along the longitudinal axis, thereby driving the battery shell to rotate along the longitudinal axis, so as to adjust the position of the welding area of ​​the battery shell.

[0050] It is understandable that when the two load-bearing wheels 111 rotate together along the longitudinally extending axis to drive the battery housing to rotate together, the two load-bearing wheels 111 need to be set to rotate in the same direction to ensure normal rotation of the battery housing.

[0051] It should be noted that the present invention does not limit the specific number of driving wheels in the two carrying wheels 111. In one embodiment of the present invention, both of the two carrying wheels 111 can be set as driving wheels, that is, the rotation drive mechanism 4 is simultaneously connected to the two carrying wheels 111, so that when the angle of the battery shell needs to be adjusted, the two carrying wheels 111 can drive the battery shell to rotate together.

[0052] In another embodiment of the present invention, the rotation drive mechanism 4 may also only drive and connect one of the load-bearing wheels 111, so that the load-bearing wheel 111 is set as a driving wheel, and the other load-bearing wheel 111 is set as a driven wheel. In this way, when the battery casing needs to be rotated, the rotation drive mechanism 4 drives the corresponding load-bearing wheel 111 to rotate, so that the load-bearing wheel 111 drives the battery casing to rotate, and at this time, the other load-bearing wheel 111 also rotates accordingly.

[0053] Furthermore, since each of the load-bearing wheels 111 is in abutment with the corresponding battery housing, during the process of the load-bearing wheel 111 rotating in the longitudinal direction, the corresponding battery housing is driven to rotate together by friction. In order to avoid relative sliding between the load-bearing wheel 111 and the battery housing when the load-bearing wheel 111 drives the battery housing to rotate, thereby affecting the accuracy of the angle adjustment of the battery housing, in an embodiment of the present invention, a first rubber ring 13 is sleeved on the circumferential side surface of each of the load-bearing wheels 111, and the first rubber ring 13 is used to abut the battery housing. In this configuration, since rubber has a large friction coefficient, by arranging the first rubber ring 13 to abut against the battery housing, the friction between the first rubber ring 13 and the battery housing can be increased, thereby ensuring the value of the maximum driving force for the load-bearing wheel 111 to drive the battery housing to rotate, thereby avoiding relative sliding between the load-bearing wheel 111 and the battery housing.

[0054] It should be noted that the present invention can also avoid relative sliding between the load-bearing wheel 111 and the battery housing by adopting other forms, and the present invention does not limit this. For example, in another embodiment of the present invention, the peripheral side surface of each load-bearing wheel 111 can be coated with an adhesive coating. In this way, when two load-bearing wheels 111 jointly carry a battery housing, the battery housing can contact the adhesive coating, and the adhesive coating can apply a certain adhesive force to the battery housing to prevent the load-bearing wheel 111 and the battery housing from sliding relative to each other when the load-bearing wheel 111 drives the battery housing to rotate, thereby affecting the accuracy of the angle adjustment of the battery housing.

[0055] Of course, in order to further achieve precise adjustment of the angles of multiple battery shells, in one embodiment of the present invention, when the rotation drive mechanism 4 only drives one of the load-bearing wheels 111 connected to each of the load-bearing parts 11, the rotation drive mechanism 4 includes a plurality of rotation motors 41 arranged at intervals along the lateral direction, and the output shaft of each of the rotation motors 41 drives the shaft connected to one of the load-bearing wheels 111. In this way, each of the rotation motors 41 is arranged corresponding to one of the load-bearing wheels 111, so as to further achieve precise rotation adjustment of the battery shell carried by the load-bearing wheel 111.

[0056] In another embodiment of the present invention, when the rotation drive mechanism 4 drives the two load-bearing wheels 111 connected to each of the load-bearing parts 11, the rotation drive mechanism 4 also includes a plurality of transmission structures, each of which is arranged corresponding to one of the rotation motors 41, and the corresponding rotation motors 41 and the two load-bearing wheels 111 are transmission-connected. In this way, the rotation motor 41 can simultaneously drive the two load-bearing wheels 111 to rotate.

[0057] The present invention also does not limit the specific structural form of the transmission structure. In one embodiment of the present invention, the transmission structure can be set as a synchronous belt and two transmission wheels 42. The transmission wheels 42 correspond to the load-bearing wheels 111 one by one and are fixed with a connecting rod 43 arranged in the longitudinal direction, so that the load-bearing wheel 111 can rotate coaxially with the corresponding transmission wheel 42. The synchronous belt is meshed and connected with the two transmission wheels 42, so that the output end of the rotating motor 41 is connected to the two rotating wheels through the synchronous belt drive. In this way, when it is necessary to adjust the angle of the battery shell, the rotating motor 41 works, and the output end of the rotating motor 41 drives the two rotating wheels to rotate along the axis extending in the longitudinal direction through the synchronous belt, thereby causing the two load-bearing wheels 111 to rotate coaxially with the two transmission wheels 42, thereby driving the battery shell to rotate along the axis extending in the longitudinal direction, and realizing the adjustment of the angle of the battery shell.

[0058] In another embodiment of the invention, the transmission structure can also be configured as three transmission wheels 42, one of which is coaxially connected to the output end of the rotating motor 41 and meshed with the other two transmission wheels 42, and the other two transmission wheels 42 correspond to the two bearing wheels 111 one by one and are fixed with connecting rods 43 arranged in the longitudinal direction, so that the bearing wheels 111 can rotate coaxially with the corresponding transmission wheels 42. Such a configuration can also enable the rotating motor 41 to simultaneously drive the two transmission wheels 42 to rotate along the axis extending in the longitudinal direction, thereby driving the battery housing to rotate along the axis extending in the longitudinal direction, thereby completing the angle adjustment of the battery housing.

[0059] Furthermore, in the present invention, since the two load-bearing wheels 111 are only used to jointly carry the first end of a battery shell, in order to further improve the stability of the load-bearing mechanism 1 on the battery shell, in the present invention, the load-bearing mechanism 1 also includes an auxiliary part 12 corresponding to the number of the load-bearing parts 11. Specifically, the present invention does not limit the specific structural form of the load-bearing part 11. In one embodiment of the present invention, each of the auxiliary parts 12 can be configured as a load-bearing plate corresponding to a load-bearing part 11, and each of the load-bearing plates is longitudinally opposite to a load-bearing part 11, and each of the load-bearing plates is used to carry the second end of a battery shell. In this way, the load-bearing plate and the two load-bearing wheels 111 jointly carry a battery shell, and the load-bearing plate and the two load-bearing wheels 111 respectively carry the two ends of the battery shell in the longitudinal direction to ensure the load-bearing stability of the battery shell by the load-bearing mechanism 1.

[0060] In another embodiment of the present invention, each of the auxiliary parts 12 includes two auxiliary wheels 121 arranged at intervals in the transverse direction, each of the auxiliary wheels 121 corresponds to a load-bearing wheel 111 and is arranged opposite to each other in the longitudinal direction, and the two auxiliary wheels 121 are used to jointly support the second end of the battery housing. It can be understood that in the present invention, the two auxiliary wheels 121 are configured as driven wheels. Specifically, when the angle of the battery housing needs to be adjusted, at least one of the load-bearing wheels 111 rotates along the axis extending in the longitudinal direction, thereby driving the battery housing to rotate. During the rotation of the battery housing, the auxiliary wheel 121 can rotate with the battery housing, thereby avoiding the auxiliary wheel 121 from limiting the movement of the second end of the battery housing to affect the accuracy of the angle adjustment of the battery housing.

[0061] Of course, the cooperation form between the auxiliary wheel 121 and the battery shell is also abutting cooperation. When the auxiliary wheel 121 rotates together with the battery shell, in order to avoid relative sliding between the auxiliary wheel 121 and the battery shell, it is also necessary to increase the friction between the auxiliary wheel 121 and the battery shell to prevent affecting the accuracy of the angle adjustment of the battery shell. In one embodiment of the present invention, the peripheral side of each auxiliary wheel 121 is sleeved with a second rubber ring 14, and the second rubber ring 14 is used to abut the battery shell. Such a setting also adopts the characteristic of rubber having a large friction coefficient. By setting the second rubber ring 14 to abut against the battery shell, the friction between the second rubber ring 14 and the battery shell is ensured, thereby ensuring the value of the maximum driving force of the battery shell to drive the auxiliary wheel 121 to rotate, so as to avoid relative sliding between the auxiliary wheel 121 and the battery shell.

[0062] Similarly, the present invention can also avoid the relative sliding of the auxiliary wheel 121 and the battery housing through other structural forms, and the present invention is not limited to this. For example, in another embodiment of the present invention, the circumferential side surface of each of the auxiliary wheels 121 can also be coated with the adhesive coating. In this way, when the two auxiliary wheels 121 jointly carry a battery housing, the battery housing can contact the adhesive coating, and the adhesive coating can apply a certain adhesive force to the battery housing to prevent the auxiliary wheel 121 from sliding relative to the battery housing when the battery housing drives the auxiliary wheel 121 to rotate, thereby affecting the accuracy of the angle adjustment of the battery housing.

[0063] Also, see Figure 2The centering mechanism 2 drives each of the battery shells to move in the longitudinal direction until they are flush, which not only facilitates the subsequent transportation work, but also ensures that the welding area of ​​each battery shell is within the acquisition field of view of the corresponding camera unit 31. In the present invention, the centering mechanism 2 includes two centering plates 21 and a linear driving mechanism 22. The two centering plates 21 are arranged on both sides of the supporting mechanism 1 in the longitudinal direction, and at least one of the centering plates 21 is movably arranged in the longitudinal direction and is used to abut one end of the battery shell in the longitudinal direction during the movement to drive the battery shell to move in the longitudinal direction. The linear driving mechanism 22 is used to drive at least one of the centering plates 21 to move in the longitudinal direction. In this way, the linear drive mechanism 22 drives the centering plate 21 to move in the longitudinal direction. During the longitudinal movement of the centering plate 21, the centering plate 21 can abut against one end of the battery shell in the longitudinal direction, thereby driving the battery shell and the centering plate 21 to move in the longitudinal direction together, until the two centering plates 21 jointly clamp the multiple battery shells to complete the centering work of the multiple battery shells.

[0064] It can be understood that the present invention does not limit the specific number of movably arranged centering plates 21. In one embodiment of the present invention, one of the centering plates 21 is movably arranged in the longitudinal direction, and the other centering plate 21 is fixed in the longitudinal direction. Correspondingly, only one linear drive mechanism 22 is provided, and is drivingly connected to the movably arranged centering plate 21. In this way, when it is necessary to center the multiple battery shells, the linear drive mechanism 22 drives the centering plate 21 movably arranged in the longitudinal direction to move toward the direction of the other centering plate 21, so that it abuts against one end of the multiple battery shells in the longitudinal direction, and drives the multiple battery shells to move together in the longitudinal direction until the other end of the multiple battery shells in the longitudinal direction abuts against the other centering plate 21, then the linear drive mechanism 22 stops, and the movably arranged centering plate 21 stops moving. At this time, the centering of the multiple battery shells is completed.

[0065] In another embodiment of the present invention, the two centering plates 21 are movably arranged in the longitudinal direction. Correspondingly, two linear drive mechanisms 22 are provided. The two linear drive mechanisms 22 respectively drive the corresponding centering plates 21. In this way, when it is necessary to center multiple battery shells, the two linear drive mechanisms 22 drive the corresponding centering plates 21 to move toward the direction of the other centering plate 21. In the process of the two centering plates 21 moving toward each other, one of the centering plates 21 will first abut one end of part of the battery shell in the longitudinal direction, and the other centering plate 21 will abut the other end of the remaining battery shell in the longitudinal direction. The two centering plates 21 respectively drive the corresponding battery shell to move together in the direction of the other centering plate 21 until all the battery shells abut the two centering plates 21 at both ends in the longitudinal direction. At this time, the two linear drive mechanisms 22 stop working, and the two centering plates 21 also stop moving, and the centering of multiple battery shells is completed.

[0066] It should also be noted that the present invention does not limit the corresponding relationship between the centering plate 21 and the multiple battery shells. For example, in one embodiment of the present invention, one centering plate 21 can abut against one end of all the battery shells in the longitudinal direction to drive all the battery shells to move together in the longitudinal direction.

[0067] In another embodiment of the present invention, each of the centering plates 21 includes first plate segments corresponding to the number of the battery shells, each of the first plate segments is movably arranged in the longitudinal direction corresponding to one of the battery shells, and multiple first plate segments can move independently, so that each of the first plate segments can abut against one end of the battery shell in the longitudinal direction to drive the corresponding battery shell to move together in the longitudinal direction.

[0068] In another embodiment of the present invention, each of the centering plates 21 may further include a plurality of second plate segments, each of the second plate segments being movably arranged in the longitudinal direction corresponding to at least two of the battery shells, and the plurality of second plate segments can move independently, so that each of the second plate segments can abut against one end of at least two of the battery shells in the longitudinal direction to drive the corresponding battery shells to move together.

[0069] Specifically, in this embodiment, each of the centering plates 21 includes a plurality of the second plate segments, and each of the second plate segments is disposed corresponding to at least two of the battery housings.

[0070] In the process of the linear drive mechanism 22 driving the centering plate 21 to move in the longitudinal direction, in order to accurately determine the specific moving angle of the centering plate 21 and prevent the centering plate 21 from angularly offset during the moving process, thereby affecting the centering effect of the plurality of battery shells, in the present invention, the centering mechanism 2 further includes a linear guide portion 23, and the linear guide portion 23 is used to guide the longitudinal movement of the output portion of the linear drive mechanism 22. It can be understood that in the present invention, the linear guide portion 23 can be set as a guide tube extending in the longitudinal direction, and the output portion of the linear drive mechanism 22 passes through the guide tube to drive the connection to the centering plate 21. In the process of the output portion of the linear drive mechanism 22 moving in the longitudinal direction, the guide tube can limit the specific moving angle of the output portion of the linear drive mechanism 22, so as to achieve the purpose of limiting the specific moving angle of the centering mechanism 2.

[0071] After the angle adjustment of the plurality of battery shells is completed, the plurality of battery shells need to be transferred to the next processing device. Figure 1 The deviation-correcting device 100 also includes a transfer mechanism 5, which includes a transfer part 51 and a clamping part 52. The transfer part 51 is arranged above the supporting mechanism 1 and is arranged to move horizontally. The clamping part 52 is arranged to move vertically on the transfer part 51. The clamping part 52 is used to clamp the battery shell after the rotation of the battery shell is completed, and transfer the battery shell to the next processing device. In this way, after the angle adjustment of the multiple battery shells is completed, the transfer part 51 drives the clamping part 52 to move above the multiple battery shells, and the clamping part 52 moves downward in the vertical direction to be able to clamp the multiple battery shells at the same time. Then, the transfer part 51 moves again to transport the multiple battery shells to the next processing tool together.

[0072] It is understandable that the present invention does not limit the specific structural form of the transfer part 51. In one embodiment of the present invention, the transfer part 51 can be set as a slide rail structure; in another embodiment of the present invention, the transfer part 51 can also be set as a single-axis moving motor. In actual setting, it can be selected according to needs.

[0073] In addition, in order to enable the plurality of battery shells to be smoothly loaded onto the carrying mechanism 1, in the present invention, the deviation correction device 100 further includes a conveying mechanism, which is movable in the horizontal and vertical directions, so that the battery shells are transferred from the conveying mechanism to the carrying mechanism 1. Specifically, the conveying mechanism first conveys the plurality of battery shells to the top of the carrying mechanism 1 in the horizontal direction, and then the conveying mechanism drives the plurality of battery shells to move downward in the vertical direction until they move to the bottom of the carrying mechanism 1. During the movement of the conveying mechanism, the plurality of battery shells can be transferred from the conveying mechanism to the carrying mechanism 1, thereby completing the loading of the plurality of battery shells.

[0074] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A correction device for correcting the cylindrical battery shell, wherein the first end of the battery shell is provided with a plurality of welding areas, and the welding areas are used for welding and connecting with the battery core, characterized in that: The deviation correcting device comprises: The bearing mechanism is rotatably arranged along the axis extending in the longitudinal direction, and is used to bear the plurality of battery shells fed thereto, and can drive each of the battery shells to rotate along the axis extending in the longitudinal direction; A centering mechanism is provided on both sides of the carrying mechanism in the longitudinal direction, and is used to drive each of the battery housings to move in the longitudinal direction until they are flush; A visual acquisition mechanism is provided on one side of the supporting mechanism along the longitudinal direction and is located on a side of the centering mechanism away from the supporting mechanism, and the visual acquisition mechanism is used to acquire a position image of the welding area of ​​each battery shell; and The rotation driving mechanism is drivingly connected to the supporting mechanism and is used to drive the corresponding supporting mechanism to rotate along an axis extending longitudinally according to the position image.

2. The deviation correction device according to claim 1, characterized in that: The bearing mechanism comprises a plurality of bearing parts spaced apart in a transverse direction, each of the bearing parts comprises two bearing wheels spaced apart in a transverse direction, both of the two bearing wheels rotate along a longitudinally extending axis and are used to jointly bear the first end of a battery housing.

3. The deviation correction device according to claim 2, characterized in that: The rotation drive mechanism comprises a plurality of rotation motors and transmission wheels arranged at intervals in the transverse direction, wherein the output end of each rotation motor drives and connects two transmission wheels, and the transmission wheels correspond to the load-bearing wheels one by one and are fixed with connection rods arranged in the longitudinal direction, so that the load-bearing wheels can rotate coaxially with the corresponding transmission wheels; Wherein, the output end of the rotating motor is connected to the two rotating wheels through a synchronous belt drive.

4. The deviation correction device according to claim 2, characterized in that: The carrying mechanism also includes auxiliary parts corresponding to the number of the carrying parts, each of the auxiliary parts includes two auxiliary wheels arranged at intervals in the transverse direction, each of the auxiliary wheels corresponds to a carrying wheel and is arranged opposite to each other in the longitudinal direction, and the two auxiliary wheels are used to jointly carry the second end of one of the battery shells.

5. The deviation correction device according to claim 4, characterized in that: A first rubber ring is sleeved on the peripheral side of each of the load-bearing wheels, and the first rubber ring is used to abut against the battery housing; and / or, A second rubber ring is sleeved on the peripheral side surface of each auxiliary wheel, and the second rubber ring is used to abut against the battery housing.

6. The deviation correcting device according to claim 2, characterized in that: The visual acquisition mechanism comprises: A plurality of camera units are disposed on one side of each of the carrying parts along the longitudinal direction and on a side of the centering mechanism away from the carrying part, the camera units are used to capture an image of the first end of the battery housing on the corresponding carrying part; and A plurality of light emitting parts are respectively arranged between each of the camera parts and the supporting mechanism, and avoid the collecting field of view of the corresponding camera part. Each of the light emitting parts is used for irradiating the first end of the battery shell on the corresponding supporting part.

7. The deviation correction device according to claim 1, characterized in that: The centering mechanism comprises: Two centering plates are arranged on both sides of the bearing mechanism in the longitudinal direction, and at least one of the centering plates is movably arranged in the longitudinal direction and is used to abut against one end of the battery housing in the longitudinal direction during the movement to drive the battery housing to move in the longitudinal direction; and A linear drive mechanism is used to drive at least one of the centering plates to move longitudinally.

8. The deviation correction device according to claim 7, characterized in that: The centering mechanism further comprises a linear guide portion, which is used to guide the longitudinal movement of the output portion of the linear drive mechanism.

9. The deviation correcting device according to any one of claims 1 to 8, characterized in that: The deviation-correcting device further comprises a transfer mechanism, and the transfer mechanism comprises: A transfer unit is disposed above the carrying mechanism and is movably arranged in a transverse direction; and The clamping part is movably arranged on the transfer part along the vertical direction, and is used to clamp the battery shell after the rotation of the battery shell is completed, and transfer the battery shell to the next processing device.

10. The deviation correcting device according to any one of claims 1 to 8, characterized in that: The deviation-correcting device further comprises a conveying mechanism, which is movably arranged in the transverse and vertical directions so as to transfer the battery casing from the conveying mechanism to the carrying mechanism.

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