Assembly apparatus and method for cylindrical batteries

Abstract

The application relates to the technical field of batteries, and particularly provides an assembling device and method for cylindrical batteries, aiming at solving the problem that existing cylindrical batteries are prone to breakage due to friction during the process of vertically inserting an electric core into a steel shell. The assembling device for the cylindrical batteries comprises a clamping mechanism and an inserting mechanism, the cylindrical battery comprises a steel shell and a cylindrical electric core, the clamping mechanism is used for clamping the steel shell to rotate, and the inserting mechanism is used for inserting the cylindrical electric core into the steel shell clamped by the clamping mechanism. The assembling method of the cylindrical battery comprises the following steps: when the steel shell moves to an electric core inserting station, the clamping mechanism moves upward and clamps the steel shell, the clamping mechanism rotates the steel shell, and the inserting mechanism inserts the cylindrical electric core into the rotating steel shell. During the process of vertically inserting the cylindrical electric core into the steel shell, the rotation of the steel shell can reduce the friction generated between the cylindrical electric core and the inner wall of the steel shell, can also reduce the stacking of impurities, and can prevent the cylindrical electric core from being broken due to the friction between the cylindrical electric core and the impurities or the inner wall of the steel shell.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and specifically provides an assembly apparatus and method for cylindrical batteries. Background Technology

[0002] The assembly process of cylindrical batteries includes the cell insertion stage. Cell insertion is generally carried out by contact insertion, with the center of the steel shell and the center of the cell set as coaxially as possible. The cell is vertically inserted into the steel shell while it is stationary, relying on cylinder pressure or camshaft thrust. Because it is contact insertion, the separator of the cell can easily come into contact with the edge of the steel shell wall and cause friction during the insertion process. Due to the large force and speed of insertion, the separator is easily damaged or even the tabs break during the cell insertion process. Therefore, the yield of cells vertically inserted into a stationary steel shell is low.

[0003] Accordingly, there is a need in the art for a new assembly apparatus and method for cylindrical batteries to solve the problem that existing cylindrical batteries are prone to frictional damage during the vertical insertion of the cell into the steel casing. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing cylindrical batteries are prone to frictional damage during the process of vertically inserting the battery cell into the steel shell.

[0005] In a first aspect, the present invention provides an assembly apparatus for a cylindrical battery, the cylindrical battery comprising a steel casing and a cylindrical cell, the assembly apparatus comprising a clamping mechanism and an insertion mechanism, the clamping mechanism being used to clamp and rotate the steel casing, and the insertion mechanism being used to insert the cylindrical cell into the steel casing clamped by the clamping mechanism.

[0006] In the preferred embodiment of the assembly device for cylindrical batteries described above, the clamping mechanism includes a rotating device and a clamping device disposed on the rotating device. The clamping device is used to clamp the steel shell, and the rotating device is used to drive the clamping device and the clamped steel shell to rotate together.

[0007] In the preferred embodiment of the above-mentioned assembly device for cylindrical batteries, the rotating device is a servo motor, and the clamping device includes a lifting cylinder for controlling the up and down movement of the steel shell, a clamping cylinder disposed at the end of the lifting cylinder for clamping the steel shell, and a clamping arm connected to the clamping cylinder.

[0008] In the preferred embodiment of the assembly device for cylindrical batteries described above, the assembly device further includes a rotating platform, which can drive the steel shell to a preset work position, and the rotating platform is provided with a steel shell adsorption mechanism for adsorbing the steel shell.

[0009] In the preferred embodiment of the assembly device for cylindrical batteries described above, a magnet is provided on the steel shell adsorption mechanism.

[0010] In the preferred embodiment of the assembly device for cylindrical batteries described above, a push-pull cylinder is further provided on the rotating platform, which is used to push and pull the steel shell adsorption mechanism.

[0011] In the preferred embodiment of the assembly device for cylindrical batteries described above, the assembly device further includes a vacuum adsorption mechanism, which is equipped with a vacuum suction head for adsorbing impurities inside the steel casing.

[0012] The present invention also provides an assembly method for a cylindrical battery, the cylindrical battery comprising a steel casing and a cylindrical cell, characterized in that the assembly device comprises a clamping mechanism and an insertion mechanism, the clamping mechanism being used to clamp the steel casing for rotation, and the insertion mechanism being used to insert the cylindrical cell into the steel casing clamped by the clamping mechanism.

[0013] The assembly method includes:

[0014] When the steel shell moves to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell;

[0015] Control the clamping mechanism to rotate the steel shell;

[0016] The insertion mechanism is controlled to insert the cylindrical battery cell into the rotating steel shell.

[0017] In the preferred embodiment of the above-described assembly method for cylindrical batteries, the assembly device further includes a vacuum adsorption mechanism, which is equipped with a vacuum suction head for adsorbing impurities inside the steel casing. The assembly method further includes:

[0018] When the steel shell moves to the vacuum adsorption station, the vacuum adsorption mechanism is controlled to adsorb the dust inside the steel shell.

[0019] In the preferred embodiment of the above-described assembly method for cylindrical batteries, the assembly device further includes a rotating platform capable of moving the steel shell to a preset work position. The rotating platform is equipped with a steel shell adsorption mechanism for adsorbing the steel shell.

[0020] The step of "controlling the clamping mechanism to move upward and clamp the steel shell when the steel shell moves to the cell insertion station" specifically includes:

[0021] When the steel shell is attracted by the steel shell adsorption mechanism and rotated by the rotating platform to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell.

[0022] In the preferred embodiment of the above-described assembly method for cylindrical batteries, a push-pull cylinder is further provided on the rotating platform. The push-pull cylinder is used to push and pull the steel shell adsorption mechanism.

[0023] The assembly method further includes:

[0024] After the clamping mechanism clamps the steel shell, the push-pull cylinder controls the steel shell adsorption mechanism to retract in a direction away from the steel shell.

[0025] In the preferred embodiment of the above-described assembly method for cylindrical batteries, the assembly method further includes:

[0026] When the steel shell adsorption mechanism rotates to the loading station, it is controlled to adsorb the steel shell.

[0027] With the above technical solution, the present invention can firmly hold the steel shell in place by the magnet on the steel shell adsorption mechanism, preventing the steel shell from falling off the rotating platform during movement. In addition, by adsorbing impurities inside the steel shell through the vacuum adsorption mechanism, the friction between the battery cell and impurities on the inner wall of the steel shell can be reduced when the battery cell is inserted, reducing the possibility of damage to the cylindrical battery cell caused by impurities. At the same time, the vacuum suction head of the vacuum adsorption mechanism can control the direction of dust and other impurities. The clamping device at the battery cell insertion station clamps the steel shell by controlling the lifting cylinder and the clamping cylinder. The rotating device realizes the rotation of the steel shell. Rotating the steel shell during the insertion of the cylindrical battery cell can reduce the friction between the cylindrical battery cell and the inner wall of the steel shell. Impurities inside the steel shell will not accumulate due to the entry and exit of the cylindrical battery cell during the rotation of the steel shell, solving the problem of friction caused by accumulated impurities and the cylindrical battery cell in the prior art. The push-pull cylinder on the rotating platform can push out or pull back the steel shell adsorption mechanism to prevent the steel shell from being adsorbed by the steel shell adsorption mechanism and unable to be rotated by the rotating device when the battery cell is inserted.

[0028] Solution 1: An assembly device for a cylindrical battery, the cylindrical battery comprising a steel casing and a cylindrical cell, characterized in that the assembly device comprises a clamping mechanism and an insertion mechanism, the clamping mechanism being used to clamp the steel casing and rotate it, and the insertion mechanism being used to insert the cylindrical cell into the steel casing clamped by the clamping mechanism.

[0029] Option 2: The assembly device for cylindrical batteries according to Option 1, characterized in that the clamping mechanism includes a rotating device and a clamping device disposed on the rotating device, the clamping device is used to clamp the steel shell, and the rotating device is used to drive the clamping device and the clamped steel shell to rotate together.

[0030] Option 3: The assembly device for cylindrical batteries according to Option 2, characterized in that the rotating device is a servo motor, and the clamping device includes a lifting cylinder for controlling the up and down movement of the steel shell, a clamping cylinder disposed at the end of the lifting cylinder for clamping the steel shell, and a clamping arm connected to the clamping cylinder.

[0031] Option 4: The assembly device for cylindrical batteries according to Option 1, characterized in that the assembly device further includes a rotating platform, the rotating platform can drive the steel shell to a preset work position, and the rotating platform is provided with a steel shell adsorption mechanism for adsorbing the steel shell.

[0032] Option 5: The assembly device for cylindrical batteries according to Option 4, characterized in that a magnet is provided on the steel shell adsorption mechanism.

[0033] Option 6: The assembly device for cylindrical batteries according to Option 4, characterized in that a push-pull cylinder is further provided on the rotating platform, the push-pull cylinder being used to push and pull the steel shell adsorption mechanism.

[0034] Option 7: The assembly device for cylindrical batteries according to Option 1, characterized in that the assembly device further includes a vacuum adsorption mechanism, wherein the vacuum adsorption mechanism is provided with a vacuum suction head, and the vacuum suction head is used to adsorb impurities inside the steel shell.

[0035] Option 8: An assembly method for a cylindrical battery, the cylindrical battery comprising a steel casing and a cylindrical cell, characterized in that the assembly device comprises a clamping mechanism and an insertion mechanism, the clamping mechanism being used to clamp the steel casing for rotation, and the insertion mechanism being used to insert the cylindrical cell into the steel casing clamped by the clamping mechanism.

[0036] The assembly method includes:

[0037] When the steel shell moves to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell;

[0038] Control the clamping mechanism to rotate the steel shell;

[0039] The insertion mechanism is controlled to insert the cylindrical battery cell into the rotating steel shell.

[0040] Option 9: The assembly method for cylindrical batteries according to Option 8, characterized in that the assembly device further includes a vacuum adsorption mechanism, the vacuum adsorption mechanism being provided with a vacuum suction head, the vacuum suction head being used to adsorb impurities inside the steel shell, and the assembly method further includes:

[0041] When the steel shell moves to the vacuum adsorption station, the vacuum adsorption mechanism is controlled to adsorb the dust inside the steel shell.

[0042] Option 10: The assembly method for cylindrical batteries according to Option 8, characterized in that the assembly device further includes a rotating platform, the rotating platform being able to drive the steel shell to a preset work position, and the rotating platform being provided with a steel shell adsorption mechanism for adsorbing the steel shell.

[0043] The step of "controlling the clamping mechanism to move upward and clamp the steel shell when the steel shell moves to the cell insertion station" specifically includes:

[0044] When the steel shell is attracted by the steel shell adsorption mechanism and rotated by the rotating platform to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell.

[0045] Option 11: The assembly method for cylindrical batteries according to Option 10, characterized in that a push-pull cylinder is further provided on the rotating platform, the push-pull cylinder being used to push and pull the steel shell adsorption mechanism.

[0046] The assembly method further includes:

[0047] After the clamping mechanism clamps the steel shell, the push-pull cylinder controls the steel shell adsorption mechanism to retract in a direction away from the steel shell.

[0048] Option 12: The assembly method for cylindrical batteries according to Option 10, characterized in that the assembly method further includes:

[0049] When the steel shell adsorption mechanism rotates to the loading station, it is controlled to adsorb the steel shell. Attached Figure Description

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0051] Figure 1 This is a schematic diagram of the preset workstations corresponding to the rotating platform of the assembly device for cylindrical batteries of the present invention.

[0052] Figure 2 This is a schematic diagram of the clamping mechanism of the assembly device for cylindrical batteries according to the present invention;

[0053] Figure 3 These are the front and top views of the clamping mechanism of the assembly apparatus for cylindrical batteries of the present invention, which clamps a cylindrical battery cell.

[0054] Figure 4 This is a schematic diagram of the vacuum adsorption mechanism of the assembly device for cylindrical batteries of the present invention;

[0055] Figure 5 This is a schematic diagram of the vacuum suction head adsorbing a steel shell in the vacuum adsorption mechanism of the assembly device for cylindrical batteries of the present invention.

[0056] Figure 6 This is a schematic diagram of the assembly method for cylindrical batteries according to the present invention.

[0057] List of reference numerals in the attached diagram:

[0058] 1. Clamping mechanism; 11. Rotating device; 12. Clamping device; 121. Lifting cylinder; 122. Clamping cylinder; 123. Clamping arm; 124. Bottom of clamping device; 2. Steel shell; 3. Rotating platform; 31. Steel shell adsorption mechanism; 311. Magnet; 32. Push-pull cylinder; 4. Vacuum adsorption mechanism; 41. Vacuum suction head; 5. Loading station; 6. Vacuum adsorption station; 7. Cell insertion station; 8. Buffer station; 9. Unloading station; 10. Cylindrical cell. Detailed Implementation

[0059] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0060] It should be noted that in the description of this invention, terms such as "upper," "lower," "vertical," and "inner" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0061] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] like Figure 1-5 As shown, in order to solve the problem that existing cylindrical batteries are prone to frictional damage during the process of vertically inserting the battery cell into the steel shell 2, the assembly device for cylindrical batteries of the present invention includes a clamping mechanism 1 and an insertion mechanism (not shown in the figure). The cylindrical battery includes a steel shell 2 and a cylindrical battery cell 10.

[0063] Preferably, such as Figure 2 , Figure 3As shown, the clamping mechanism 1 includes a rotating device 11 and a clamping device 12 mounted on the rotating device 11. The clamping device 12 is used to clamp the steel shell 2. The clamping device 12 includes a lifting cylinder 121 for controlling the up and down movement of the steel shell 2, a clamping cylinder 122 mounted at the end of the lifting cylinder 121 for clamping the steel shell 2, and a clamping arm 123 connected to the clamping cylinder 122. The rotating device 11 can be a servo motor, which drives the clamping device 12 to rotate together with the clamped steel shell 2. Figure 3 The arrow in the top-down view indicates the direction of rotation of the steel shell 2. The insertion mechanism is used to insert the cylindrical battery cell 10 into the steel shell 2 held by the clamping mechanism 1. Figure 3 The arrow in the main view points in the direction of the cylindrical battery cell 10 being vertically inserted into the steel shell 2.

[0064] Preferably, such as Figure 1 As shown, the assembly device also includes a rotating platform 3, which can drive the steel shell 2 to a preset work position. The rotating platform 3 is equipped with a steel shell adsorption mechanism 31 that adsorbs the steel shell 2. The steel shell adsorption mechanism 31 is equipped with a magnet 311 that can attract the steel shell 2. The rotating platform 3 can also be equipped with a push-pull cylinder 32, which can push and pull the steel shell adsorption mechanism 31.

[0065] Preferably, such as Figure 4 , Figure 5 As shown, the assembly device may also include a vacuum adsorption mechanism 4, which is equipped with a vacuum suction head 41, which can adsorb impurities inside the steel shell 2.

[0066] The assembly process of the above-mentioned device includes: when a steel shell adsorption mechanism 31 on the rotating platform 3 is at the loading station 5, the rotating platform 3 of the present invention has multiple steel shell adsorption mechanisms 31. Taking the process from loading to unloading involving one of the steel shell adsorption mechanisms 31 as an example, the steel shell 2 is adsorbed by the magnet 311 on the steel shell adsorption mechanism 31. Then the rotating platform 3 drives the steel shell 2 to rotate towards the vacuum adsorption station 6. When the steel shell 2 moves to the vacuum adsorption station 6, the vacuum adsorption mechanism 4 controls the vacuum suction head 41 to suck out the impurities in the steel shell 2. After the impurities in the steel shell 2 are adsorbed, the rotating platform 3 moves the steel shell 2 to the next station. The next station can be set as a buffer station 8, and the buffer station 8 can also be used as a spare station. After the steel shell 2 leaves the buffer station 8, it continues to move to the next station. When the steel shell 2 moves to the cell insertion station 7, the clamping mechanism 1 and the insertion mechanism are activated. The clamping device 12 of the clamping mechanism 1 controls the clamping arm 123 to move upward through the lifting cylinder 121. When the end of the clamping arm 123 moves to the middle position in the vertical direction of the steel shell 2, the bottom of the steel shell 2 contacts the bottom 124 of the clamping device. At this time, the lifting cylinder 121 stops working, and the clamping cylinder 122 connected to the clamping arm 123 starts working so that the clamping arm 123 holds the steel shell 2. After the clamping arm 123 holds the steel shell 2, the push-pull cylinder 32 on the rotating platform 3 drives the steel shell adsorption mechanism 31 to move away from the steel shell 2 so that the subsequent rotating device 11 can drive the steel shell 2. The rotating device 11 is activated and drives the steel shell 2 to rotate after the steel shell adsorption mechanism 31 leaves the steel shell 2. At this time, the insertion mechanism inserts the cylindrical battery cell 10 into the rotating steel shell 2 from top to bottom in the vertical direction. After the cylindrical battery cell 10 is inserted, the push-pull cylinder 32 pushes the steel shell adsorption mechanism 31 back towards the steel shell 2 so that the steel shell adsorption mechanism 31 adsorbs the steel shell 2. At this time, the clamping cylinder 122 is activated to control the clamping arm 123 to release the steel shell 2. The lifting cylinder 121 is activated to drive the clamping mechanism 1 to move downward. Then, the rotating platform 3 drives the steel shell 2 to rotate to the remaining work position and perform corresponding work until the steel shell 2 moves to the unloading station 9 and leaves the rotating platform 3. At this time, the assembly work of the cylindrical battery of the present invention is completed.

[0067] like Figure 1 As shown, six workstations can be set on the rotating platform 3, one workstation every 60°, ensuring that the running time of the steel shell 2 between workstations is equal, thus facilitating the connection between the work of each workstation. Since the assembly of cylindrical batteries is a batch assembly, the work at the loading workstation 5, vacuum adsorption workstation 6, cell insertion workstation 7, and unloading workstation 9 is carried out simultaneously.

[0068] The advantages of the above-mentioned setup are as follows: the magnet 311 on the steel shell adsorption mechanism 31 can firmly hold the steel shell 2, preventing it from falling off the rotating platform 3 during movement; the vacuum adsorption mechanism 4 can adsorb impurities inside the steel shell 2, preventing damage to the cylindrical battery 10 caused by friction between impurities and the cylindrical battery 10 during the insertion process when the steel shell moves to the battery cell insertion station 7. The vacuum adsorption mechanism can reduce the possibility of impurities damaging the cylindrical battery 10. In addition, the vacuum suction head 41 of the vacuum adsorption mechanism 4 can collect dust and other impurities and discharge them, thereby controlling the destination of dust and other impurities. Compared with the existing method of blowing away impurities inside the steel shell 2, the vacuum adsorption method is more conducive to controlling dust and other impurities and preventing secondary pollution to the steel shell 2.

[0069] The clamping device 12 at the cell insertion station 7 uses a lifting cylinder 121 and a clamping cylinder 122 to clamp and release the steel shell 2 with the clamping arm 123. During the insertion of the cylindrical cell 10 into the steel shell 2, the steel shell 2 is rotated. Compared to vertically inserting the cylindrical cell 10 into a stationary steel shell 2, rotating the steel shell 2 reduces friction between the cylindrical cell 10 and the inner wall of the steel shell 2. Furthermore, the existing method of vertically inserting the cylindrical cell 10 into a stationary steel shell 2 easily causes dust and other impurities inside the steel shell 2 to accumulate in the same direction during the insertion process. Impurities enter between the cylindrical battery cell 10 and the inner wall of the steel shell 2, causing friction with the cylindrical battery cell 10. This invention reduces the possibility of dust accumulation by controlling the rotation of the steel shell 2, thereby reducing the possibility of damage to the cylindrical battery cell 10 due to friction. The rotating device 11 of the clamping mechanism 1 uses a servo motor, which can more accurately control the rotational precision of the steel shell 2. In addition, the servo motor is more stable in operation than other motors, which can ensure that the cylindrical battery cell 10 is smoothly inserted into the steel shell 2. The dynamic response time of the motor acceleration and deceleration is shorter, that is, the servo motor can quickly reach the speed required by the steel shell 2 after starting.

[0070] The rotating platform 3 can make the work more automated. The push-pull cylinder 32 can push out or pull back the steel shell adsorption mechanism 31 to prevent the steel shell 2 from being adsorbed by the steel shell adsorption mechanism 31 and unable to be driven to rotate by the rotating device 11 during the process of inserting the cylindrical battery cell 10 into the steel shell 2.

[0071] The buffer station 8 is designed to provide the subsequent station with the steel shell 2 assembled at the previous station, thereby minimizing the possibility of assembly work interruptions due to malfunctions at the previous station. Figure 1Taking the buffer station 8, located after the vacuum adsorption station 6 and before the cell insertion station 7, as an example, if the vacuum adsorption mechanism 4 malfunctions, in order to prevent the interruption of automated production, a steel shell 2 that has already undergone vacuum adsorption can be provided at the buffer station 8, thereby ensuring the normal operation of the work and buying time for the maintenance of the vacuum adsorption mechanism. In addition, the buffer station 8 can also be used as a backup station so that other assembly work can be carried out at this station.

[0072] See last for reference. Figure 6 The present invention also provides a method using Figure 1-5 The assembly method shown is for an assembly device used for cylindrical batteries. (As shown) Figure 6 As shown, the assembly method for cylindrical batteries includes the following steps:

[0073] Step S100: When the steel shell 2 moves to the cell insertion station 7, control the clamping mechanism 1 to move upward and clamp the steel shell 2.

[0074] In a preferred assembly method for cylindrical batteries, impurities inside the steel shell 2 can be adsorbed before the cylindrical cell 10 is inserted into the steel shell 2. The assembly device also includes a vacuum adsorption mechanism 4, which is equipped with a vacuum suction head 41. The vacuum suction head 41 can adsorb impurities inside the steel shell 2. When the steel shell 2 moves to the vacuum adsorption station 6, the vacuum adsorption mechanism 4 is controlled to adsorb dust inside the steel shell 2.

[0075] In another preferred assembly method for cylindrical batteries, the steel shell 2 can be rotated to the cell insertion station 7. The assembly device also includes a rotating platform 3, on which a steel shell adsorption mechanism 31 is provided to adsorb the steel shell 2. When the steel shell 2 is adsorbed by the steel shell adsorption mechanism 31 and rotated by the rotating platform 3 to the cell insertion station 7, the clamping mechanism 1 is controlled to move upward and clamp the steel shell 2.

[0076] In another preferred assembly method for cylindrical batteries, a push-pull cylinder 32 is also provided on the rotating platform 3. The push-pull cylinder 32 can push and pull the steel shell adsorption mechanism 31. After the clamping mechanism 1 clamps the steel shell 2, the push-pull cylinder 32 controls the steel shell adsorption mechanism 31 to retract away from the steel shell 2.

[0077] In other preferred assembly methods for cylindrical batteries, when the steel shell adsorption mechanism 31 rotates to the loading station 5, the steel shell adsorption mechanism 31 is controlled to adsorb the steel shell 2.

[0078] Step S200: Control the clamping mechanism 1 to rotate the steel shell 2.

[0079] Step S300: Control the insertion mechanism to insert the cylindrical battery cell 10 into the rotating steel shell 2.

[0080] In summary, the steel shell adsorption mechanism 31 can firmly hold the steel shell 2, preventing it from falling off the rotating platform 3 during movement; the vacuum adsorption mechanism 4 can reduce friction between impurities and the cylindrical battery cell 10, reducing the possibility of damage to the cylindrical battery cell 10 caused by impurities, and can also control the direction of dust and other impurities; controlling the rotation of the steel shell 2 during the insertion of the cylindrical battery cell 10 can reduce friction between the cylindrical battery cell 10 and the inner wall of the steel shell 2, and can also reduce the concentrated accumulation of impurities, thereby reducing the possibility of damage to the cylindrical battery cell 10 caused by friction; the rotating device 11 of the clamping mechanism 1 adopts... Using a servo motor, the rotation accuracy of the steel shell 2 can be controlled more accurately, and the operation is more stable. The push-pull cylinder 32 can prevent the steel shell 2 from being attracted by the steel shell adsorption mechanism 31 and unable to be rotated by the rotating device 11 when the cylindrical battery cell 10 is inserted. The buffer station 8 can provide the steel shell 2 assembled in the previous station to the next station. Once the previous station fails, the steel shell 2 can be moved to the next station at the buffer station 8 to prevent work interruption. In addition, the buffer station 8 can also be used as a backup station so that other work can be performed at this station.

[0081] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0082] For example, such as Figure 1 As shown, although the instruction manual describes setting the buffer station 8 before and after the cell insertion station 7, the buffer station 8 can also be set in other positions, as long as the buffer station 8 can serve as a backup or buffer.

[0083] Although the instruction manual describes it as having six workstations, the present invention can also have more or fewer than six workstations depending on the needs of the assembly process, as long as the design of the workstations meets the requirements of the assembly work.

[0084] Although the specification states that "when the end of the clamping arm 123 moves to the middle position in the vertical direction of the steel shell 2, the bottom of the steel shell 2 contacts the bottom 124 of the clamping device," the present invention does not limit the length of the clamping arm 123. When the bottom of the steel shell 2 contacts the bottom 124 of the clamping device, the end of the clamping arm 123 can be located at or above the middle part of the steel shell 2, or it can be located below the middle part of the steel shell 2. As long as the clamping arm 123 can clamp the steel shell 2 by controlling the lifting cylinder 121 and the clamping cylinder 122 after the steel shell 2 moves to the cell insertion station 7, it is acceptable.

[0085] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. An assembly apparatus for a cylindrical battery, the cylindrical battery comprising a steel casing and cylindrical cells, characterized in that, The assembly device includes a clamping mechanism and an insertion mechanism. The clamping mechanism is used to clamp the steel shell and rotate it, and the insertion mechanism is used to insert the cylindrical battery cell into the steel shell clamped by the clamping mechanism. During the insertion of the cylindrical battery cell, the clamping mechanism can drive the steel shell to rotate; The clamping mechanism includes a rotating device and a clamping device disposed on the rotating device. The clamping device is used to clamp the steel shell, and the rotating device is used to drive the clamping device and the clamped steel shell to rotate together.

2. The assembly apparatus for cylindrical batteries according to claim 1, characterized in that, The rotating device is a servo motor, and the clamping device includes a lifting cylinder that controls the up and down movement of the steel shell, a clamping cylinder located at the end of the lifting cylinder and used to clamp the steel shell, and a clamping arm connected to the clamping cylinder.

3. The assembly apparatus for cylindrical batteries according to claim 1, characterized in that, The assembly device also includes a rotating platform, which can drive the steel shell to a preset work position. The rotating platform is equipped with a steel shell adsorption mechanism for adsorbing the steel shell.

4. The assembly apparatus for cylindrical batteries according to claim 3, characterized in that, The steel shell adsorption mechanism is equipped with a magnet.

5. The assembly apparatus for cylindrical batteries according to claim 3, characterized in that, The rotating platform is also equipped with a push-pull cylinder, which is used to push and pull the steel shell adsorption mechanism.

6. The assembly apparatus for cylindrical batteries according to claim 1, characterized in that, The assembly device also includes a vacuum adsorption mechanism, which is equipped with a vacuum suction head for adsorbing impurities inside the steel shell.

7. A method for assembling a cylindrical battery, the cylindrical battery comprising a steel casing and cylindrical cells, characterized in that, The assembly device for the cylindrical battery includes a clamping mechanism and an insertion mechanism. The clamping mechanism is used to clamp the steel shell and rotate it, and the insertion mechanism is used to insert the cylindrical battery cell into the steel shell clamped by the clamping mechanism. The assembly method includes: When the steel shell moves to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell; Control the clamping mechanism to rotate the steel shell; The insertion mechanism is controlled to insert the cylindrical battery cell into the rotating steel shell.

8. The assembly method for cylindrical batteries according to claim 7, characterized in that, The assembly device further includes a vacuum adsorption mechanism, which is equipped with a vacuum suction head for adsorbing impurities inside the steel shell. The assembly method further includes: When the steel shell moves to the vacuum adsorption station, the vacuum adsorption mechanism is controlled to adsorb the dust inside the steel shell.

9. The assembly method for cylindrical batteries according to claim 7, characterized in that, The assembly device also includes a rotating platform, which can move the steel shell to a preset work position. The rotating platform is equipped with a steel shell adsorption mechanism for adsorbing the steel shell. The step of "controlling the clamping mechanism to move upward and clamp the steel shell when the steel shell moves to the cell insertion station" specifically includes: When the steel shell is attracted by the steel shell adsorption mechanism and rotated by the rotating platform to the cell insertion station, the clamping mechanism is controlled to move upward and clamp the steel shell.

10. The assembly method for a cylindrical battery according to claim 9, characterized in that, The rotating platform is also equipped with a push-pull cylinder, which is used to push and pull the steel shell adsorption mechanism. The assembly method further includes: After the clamping mechanism clamps the steel shell, the push-pull cylinder controls the steel shell adsorption mechanism to retract in a direction away from the steel shell.

11. The assembly method for a cylindrical battery according to claim 9, characterized in that, The assembly method further includes: When the steel shell adsorption mechanism rotates to the loading station, it is controlled to adsorb the steel shell.

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