Battery cell module surface pretreatment device, surface treatment method thereof and battery pack assembly production line

Abstract

The present invention discloses a cell module surface pretreatment device, a surface treatment method thereof, and a battery pack assembly production line, wherein the cell module surface pretreatment device includes a cell module support table; a cell module locking mechanism, used to fix the workpiece on the cell module support table; a paper removal mechanism, located outside the end of the cell module support table and reciprocating along the extension direction of the end of the cell module support table; a cleaning mechanism, including a cleaning device located outside the side of the cell module support table, and the cleaning device can at least reciprocate along the extension direction of the side of the cell module support table. This solution can realize the paper removal and cleaning operations of the cell module in one step by setting a cell module support table to support the cell module, and a locking mechanism to position and fix the cell, combined with a paper removal mechanism and a cleaning mechanism, with a high degree of automation and improved efficiency. There is no interference between the cleaning operation and the paper removal operation, thereby ensuring the processing quality.

Description

Technical Field

[0001] The present invention relates to the field of automatic assembly equipment for new energy battery packs, in particular to a surface pretreatment device for a battery cell module, a surface treatment method thereof, and a battery pack assembly production line. Background Art

[0002] When processing a power battery, two battery modules 01 including multiple battery cells, a partition 02 and two end plates 03 need to be assembled into the following Fig.17 The overall structure shown. There are double-sided adhesive tapes at both ends of the battery module 01, so before assembly, the protective paper on the double-sided adhesive tape needs to be torn off first. At the same time, in order to attach the battery module to the end plate 03, the two sides of the battery module need to be kept clean to ensure reliable adhesion.

[0003] In the existing process, when removing the protective paper and cleaning, the cleaning is often performed by first using a cleaning device, and then manually removing the protective paper; or the protective paper is first removed, and then cleaning is performed by a cleaning device. Regardless of which method is used, it must be carried out in two steps, which is inefficient and labor-intensive. In addition, interference is often easy to occur between the two operations. For example, when cleaning first and then removing the protective paper, manually removing the protective paper is often likely to touch the side of the cleaned battery module, affecting the cleaning effect. When the glue is removed first and then cleaned, the glue layer is easily contaminated during the cleaning process, affecting the stability of subsequent bonding. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a battery cell module surface pretreatment device, a surface treatment method thereof and a battery pack assembly production line.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] Battery cell module surface pretreatment device, including

[0007] Battery cell module support platform;

[0008] The cell module locking mechanism has a structure for forming negative pressure on a part of the top surface of the cell module support platform and / or applying downward pressure to the top surface of the cell module support platform and / or applying relative pressure to the space above the cell module support platform;

[0009] A paper removal mechanism, located outside the end of the battery module support platform and capable of reciprocating along the extension direction of the end of the battery module support platform;

[0010] The cleaning mechanism comprises a cleaning device located outside the side surface of the battery module support platform, and the cleaning device can at least reciprocate along the extension direction of the side surface of the battery module support platform.

[0011] Preferably, in the battery cell module surface pretreatment device, the paper removal mechanism is arranged on the battery cell module locking mechanism, and is driven by the battery cell module locking mechanism to reciprocate along the side extension direction of the battery cell module support platform, and the linear moving device is arranged on a driving device that drives it to reciprocate along the end extension direction of the battery cell module support platform.

[0012] Preferably, in the battery module surface pretreatment device, the paper removal mechanism includes a paper removal clamp, and the paper removal clamp is adjustably connected to a mounting plate, and the mounting plate is connected to a fixed-position linear moving device.

[0013] Preferably, in the battery cell module surface pretreatment device, the moving path of the installation plate driven by the linear motion device forms an acute angle with the short side of the battery cell module support platform.

[0014] Preferably, the battery module surface pretreatment device further includes a paper removal determination mechanism for determining whether to remove the protective paper of the tape.

[0015] Preferably, in the battery cell module surface pretreatment device, a protective paper collector located at one end is provided below the paper removal mechanism.

[0016] Preferably, in the battery cell module surface pretreatment device, a purge device for forming an airflow toward the protective paper collector is provided above the paper removal mechanism.

[0017] Preferably, in the battery cell module surface pretreatment device, there are two cleaning devices with a height difference.

[0018] Preferably, in the battery cell module surface pretreatment device, the battery cell module support platform can rotate;

[0019] Or there are two paper removal mechanisms and two cleaning mechanisms. Under normal conditions, the paper removal clamps of the two paper removal mechanisms are diagonally distributed, and the cleaning devices of the two cleaning mechanisms are diagonally distributed.

[0020] In the cell module surface treatment method based on the cell module surface pretreatment device, the paper removal mechanism and the cleaning mechanism work simultaneously to tear off the protective paper on the end surface of the cell module on the cell module support table and clean the side surface.

[0021] The advantages of the technical solution of the present invention are mainly reflected in:

[0022] This solution is cleverly designed. By setting up a cell module support table to support the cell module, and a locking mechanism to position and fix the cell, combined with a paper removal mechanism and a cleaning mechanism, the cell module paper removal and cleaning operations can be achieved in one step. It has a high degree of automation and improved efficiency. In addition, the cleaning operation and the paper removal operation have no impact on each other, ensuring quality.

[0023] The glue peeling claws of the present invention are arranged on the locking mechanism and have an adjustable angle, which can effectively adapt to the glue peeling requirements of different types of battery modules, is more flexible in application, and is easy to promote and use.

[0024] The design of the moving angle of the glue-tearing jaws of the present invention can greatly reduce the pulling force perpendicular to the glue surface applied to the glue layer, thereby reducing the risk of the glue layer peeling off and ensuring the reliability of the protective paper tearing off.

[0025] The provision of a protective paper collector and a purge device can effectively collect waste protective paper, which is beneficial to maintaining the work site environment.

[0026] The position design of the cleaning mechanism and the glue tearing jaws can effectively avoid mutual interference, greatly improve the freedom of operation of each component, improve the coordination of the overall structure, and improve work efficiency.

[0027] The double cleaning devices are arranged in a staggered height, which can effectively cover one side of the battery cell module, and can clean the entire side at one time, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a perspective view of a surface pretreatment device of the present invention;

[0029] Figure 2 is a rear view of the surface pretreatment device of the present invention;

[0030] Figure 3 yes Figure 1 Enlarged view of the middle C area;

[0031] Figure 4 is a top view of the surface pretreatment device of the present invention;

[0032] Figure 5 is a front view of the surface pretreatment device of the present invention;

[0033] Figure 6 yes Figure 1 Enlarged view of area D in the middle;

[0034] Figure 7 is a top view of the battery pack assembly production line of the present invention;

[0035] FIG8 is a top view of the battery pack assembly device of the present invention;

[0036] FIG9 is a front view of the battery pack assembly device of the present invention;

[0037] Figure 10 is Figure 8 A magnified view of area A;

[0038] Fig.11 yes Fig. 9 Enlarged view of area B;

[0039] Fig.12 It is a top view of the battery cell module placement platform, battery cell module fixing mechanism, terminal attachment mechanism and partition limiting mechanism on one side of the battery pack assembly device;

[0040] Fig.13 is an end view of the battery pack assembly device of the present invention;

[0041] Fig.14 It is a front view of the partition limiting mechanism and the end plate predetermined mechanism of the battery pack assembly device of the present invention;

[0042] Fig.15 is a top view of a partition limiting mechanism and an end plate predetermined mechanism of a battery pack assembly device of the present invention;

[0043] Fig.16 It is a partial enlarged view of the partition limiting mechanism and the end plate predetermined mechanism of the battery pack assembly device of the present invention;

[0044] Fig.17 It is a schematic diagram of the battery module of the present invention. DETAILED DESCRIPTION

[0045] The purpose, advantages and features of the present invention will be illustrated and explained by the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0046] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0047] The surface pretreatment device of the battery cell module disclosed in the present invention is described below in conjunction with the accompanying drawings. Figure 1 As shown, it includes a workbench 9000 , on which a cell module support platform 1000 , a cell module locking mechanism 2000 , a paper removal mechanism 3000 and a cleaning mechanism 4000 are arranged.

[0048] The workbench 9000 is used to provide support for other structures. It can be a frame structure composed of various profiles and plates, which is not limited here. In order to facilitate movement, the bottom of the workbench 9000 is provided with universal wheels. Figure 2 As shown, the cell module support platform 1000 is arranged at the middle position of the top of the workbench 9000, and the cell module support platform 1000 is used to place the cell module, which includes a support leg 1100, and a support plate 1200 is horizontally arranged on the support leg 1100, and a reinforcing plate 1300 and a group of limiting blocks 1400 located on both sides of the long sides of the reinforcing plate 1300 are arranged on the support plate 1200, and the limiting block 1400 has a rib extending above the reinforcing plate 1300, and the spacing between the ribs on both sides is equivalent to the width of the cell module, so that the width direction of the cell can be effectively limited.

[0049] The cell module on the cell module support platform 1000 is fixed on the cell module support platform 1000 via a cell module locking mechanism 2000 . The cell module locking mechanism 2000 may be in various feasible forms.

[0050] In a feasible embodiment, a group of vacuum adsorption holes (not shown in the figure) are formed on the battery cell module support platform 1000, and the vacuum adsorption holes are connected to a vacuum extraction device (not shown in the figure), so that the battery cell module can be adsorbed on the battery cell module support platform 1000 by vacuum adsorption force.

[0051] In another feasible embodiment, a pressing mechanism (not shown in the figure) is provided on the top of the battery cell module support platform 1000, and the pressing mechanism applies downward pressure to the battery cell module through a liftable pressing plate to fix it on the battery cell module support platform 1000.

[0052] However, the structures of the above two embodiments cannot accurately position the battery cell module, and it is necessary to ensure the accuracy of the position of the battery cell module in advance when placing the battery cell module. Therefore, in a more preferred embodiment, as shown in the attached Figure 1 , Attachment Figure 3As shown, the battery cell module locking mechanism 2000 includes a clamping mechanism 2100 located at both ends (left and right ends) of the battery cell module support platform 1000, each of the clamping mechanisms 2100 includes a pressing plate 2110, the height of the pressing plate 2110 corresponds to the glue-free area above the glue layer of the end face of the battery cell module, the pressing plate 2110 is fixed to a horizontal plate 2130 through an L-shaped stand 2120, the horizontal plate 2130 is slidably arranged on two guide rails 2140 extending along the length direction of the battery cell module support platform through two sliders at the bottom thereof, the horizontal plate 2130 is connected to a moving device 2150 that drives it to slide along the guide rail 2140, and the moving device 2150 is fixed to the top surface of the workbench 9000. The moving device 2150 is preferably located on the horizontal plate 2130, which can be a linear motor or a linear module or a structure consisting of a motor and a lead screw that can produce linear movement; of course, it can also be a cylinder, an oil cylinder, an electric push rod, etc. The minimum spacing between the two pressing plates 2110 of the clamping mechanism 2100 is the same as the length of the battery module, so that the two pressing plates 2110 can effectively position and fix the battery module.

[0053] After the cell module locking mechanism 2000 fixes the cell module, paper removal and cleaning operations can be performed. The paper removal operation refers to tearing off the protective paper (centrifugal paper or centrifugal film) on the glue layer at both ends of the cell module, and the paper removal operation is performed by the paper removal mechanism 3000. The cleaning operation refers to cleaning the two sides of the cell module to remove dirt, and the cleaning operation is performed by the cleaning mechanism 4000.

[0054] As attached Figure 3 As shown, the paper removal mechanism 3000 includes at least one portion located outside the end portion 1500 of the battery module support platform 1000 and reciprocatingly movable along the extension direction of the end portion of the battery module support platform 1000, and includes a paper removal clamp 3100, the paper removal clamp 3100 includes a clamp cylinder 3110 and two clamps 3120 driven thereby, the clamp 3120 includes a main body 3121 and a clamp plate 3122, and mutually matching bosses and notches are formed on opposite end surfaces of the two clamp plates 3122, the boss extends in a direction perpendicular to the battery module support platform 1000, and the boss is located at the notch when clamped by the two clamps, so that the head of the protective paper can be stably clamped.

[0055] As attached Figure 3As shown, the paper removal clamp 3100 is adjustably arranged on a mounting plate 3200. Specifically, the clamp cylinder 3110 of the paper removal clamp 3100 has two screw holes, and the mounting plate 3200 has two mounting holes corresponding to the screw holes on the clamp cylinder 3110, one of which is a round hole 3210, and the other is an arc hole 3220. The clamp cylinder 3110 and the mounting plate 3200 can be connected by bolts, so that the position of the clamp cylinder 3110 can be adjusted by adjusting the position of a mounting hole on the clamp cylinder 3110 in the arc hole 3220. The mounting plate 3200 is connected to a fixed linear motion device 3300, and the linear motion device 3300 can be a device that can generate linear motion, such as a cylinder or an oil cylinder.

[0056] As attached Figure 3 As shown, the linear moving device 3300 is arranged on a driving device 3400 that drives it to reciprocate along the end extension direction of the battery module support platform (1000) (the width direction of the battery module support platform) through a sliding member. The sliding member is slidably arranged on a guide bar 3500 extending along the width direction of the battery module support platform. The driving device 3400 is also a variety of devices that can produce linear movement, such as a cylinder or an oil cylinder. In a preferred embodiment, the driving device 3400 is a linear motor or a linear module, and its two ends extend to the outside of the two long sides of the battery module support platform 1000. At the same time, the driving device 3400 is arranged on the horizontal plate 2130 of the battery module locking mechanism and is located below the pressing plate 2110, so as to move synchronously with the pressing plate 2110.

[0057] In this embodiment, the linear moving device 3300 takes a cylinder as an example. When the cylinder shaft of the cylinder is extended, the two clamping jaws 3120 of the paper removal clamping jaw 3100 are located at one end of the tape on the end face of the battery module and can clamp the head of the protective paper (release paper or centrifugal film) on the tape extending outside the end face of the battery module. When the cylinder shaft of the cylinder is retracted, the paper removal clamping jaw moves the head of the protective paper it clamps away from the end face of the battery module, thereby separating the head of the protective paper from the colloid. Then the driving device 3400 drives the paper removal clamping jaw 3100 to move linearly toward the other end of the protective paper, so that the protective paper can be torn off the glue layer.

[0058] In a further preferred embodiment, in order to prevent the protective paper from lifting the glue layer when removing the paper, in a more preferred manner, as shown in the attached Figure 4As shown, the moving path (reciprocating direction) of the installation plate 3200 driven by the linear moving device 3300 forms an acute angle with the angle A of the short side of the battery module support platform 1000. This arrangement enables the force direction when tearing off the protective paper to form an acute angle with the glue layer, thereby greatly reducing the separation of the vertical glue layer due to the pulling force when tearing off the protective paper, thereby greatly reducing the risk of lifting the glue layer.

[0059] After the paper removal mechanism 3000 performs the tearing operation, it is necessary to determine whether the protective paper is effectively torn off. Figure 1 As shown, the battery cell module surface pretreatment device also includes a paper removal determination mechanism 5000, which is used to determine whether the protective paper of the tape is torn off. The paper removal determination mechanism 5000 can use various feasible methods to determine whether there is a glue layer. For example, a high-precision distance measuring sensor (laser sensor, etc.) can be used to measure the distance from the sensor to the end face of the battery cell module, so as to determine whether the protective paper is torn off.

[0060] In an optional manner, this is achieved by providing a brightness sensor. Due to the brightness difference between the protective paper and the glue layer, the brightness detected by the brightness sensor can be used to determine whether it is the protective paper or the glue layer.

[0061] In a more preferred embodiment, this is achieved by providing a color mark sensor, which is provided on the paper removal clamp 3100 through a bracket and is located below the pressure plate and moves synchronously with the paper removal clamp 3100, that is, the color mark sensor is also provided on the linear moving device 3300, and the color mark sensor determines whether to tear off the protective paper by identifying the different colors of the white release paper and the black glue layer.

[0062] Furthermore, after the paper removal mechanism 3000 tears off the protective paper, the protective paper needs to be discarded before the next tearing operation can be carried out. Figure 1 As shown, in order to effectively collect the protective paper and avoid the torn protective paper from polluting the working environment, a protective paper collector 6000 is provided at one end below the paper removal mechanism 3000. The protective paper collector 6000 includes a feed hopper 6100 and a collection box 6200. The protective paper collector 6000 is preferably located directly below the position to which the paper removal claws of the paper removal mechanism 3000 move when tearing off the protective paper, so that the paper removal claws holding the protective paper can be opened immediately to discard the protective paper into the protective paper collector 6000.

[0063] Since the weight of the protective paper is relatively light, it is easily affected by airflow and scattered everywhere. In view of this, in a more preferred embodiment, as shown in the attached Figure 1As shown, a purge device 7000 for forming an airflow toward the protective paper collector 6000 is arranged above the paper removal mechanism 3000. The purge device 7000 can be various devices that can generate an airflow flowing in a certain direction, such as a blower, a fan, etc., which is not limited here.

[0064] As attached Figure 4 , Attachment Figure 5 As shown, the cleaning mechanism 4000 includes a cleaning device 4100 located outside the side 1600 (long side) of the battery module support platform 1000, and the cleaning device 4100 can at least reciprocate along the side extension direction of the battery module support platform 1000, and it can move from one end of the battery module support platform 1000 to the other end, so that the long side of the battery module on the battery module support platform 1000 can be cleaned.

[0065] The cleaning device 4100 can be various cleaning equipment. In one feasible embodiment, the cleaning device is a nozzle connected to a high-pressure gas source, so that it can be blown; in another feasible embodiment, the cleaning device 4100 is a nozzle connected to a dry ice cleaning machine, so that dry ice cleaning can be performed. In another feasible embodiment, the cleaning device 4100 is a cleaning head of an ultrasonic cleaning machine, so that ultrasonic cleaning can be performed.

[0066] In a preferred embodiment, the cleaning device 4100 may also have a plasma cleaning gun, and in a more preferred embodiment, there are two plasma cleaning guns, and the plasma cleaning guns have a height difference and are staggered in the longitudinal direction, so that the two plasma cleaning guns can completely cover the side of the battery cell module to complete the complete cleaning of one side of the battery cell module in one cleaning process.

[0067] Of course, in other embodiments, there may be only one plasma cleaning gun, and the entire side of the battery cell module can be covered by moving the cleaning device 4100 up and down.

[0068] As attached Figure 4 , Attachment Figure 5 As shown, the cleaning device 4100 is connected to a cleaning movable device 4200 which drives it to reciprocate along the length direction of the battery module support platform. The cleaning movable device 4200 can also be various devices that can produce linear movement, such as a cylinder, an oil cylinder, etc., preferably a linear motor or a linear module or a structure composed of a motor and a lead screw. The cleaning movable device 4200 drives the cleaning device 4100 to move from the outside of one end of the battery module support platform to the outside of the other end.

[0069] Furthermore, during cleaning, the head of the cleaning device 4100 needs to be kept close to the side of the battery module. Figure 4 , Attachment Figure 5 As shown, the head of the cleaning device 4100 interferes with the placement of the battery module on the battery module support platform 1000 to a certain extent, so in a more optional manner, the cleaning device 4100 can also be reciprocated along the width direction of the battery module support platform. Specifically, the two cleaning devices 4100 are arranged on an upper L-shaped member 4300, and a slide rail 4400 extending along the width direction of the battery module support platform is arranged at the bottom of the L-shaped member 4300, and the slide rail 4400 is slidably arranged on a guide block, and the L-shaped member 4300 is connected to a push-pull cylinder 4500 that drives it to reciprocate along the extension direction of the slide rail 4400, and the push-pull cylinder 4500 and the guide block 4800 are both arranged on a bottom plate 4600, and the bottom plate 4600 is fixed on the movable part of the cleaning mobile device 4200, and the bottom plate 4600 is slidably arranged on a track 4700 extending along the length direction of the battery module support platform.

[0070] On the other hand, the tail end of each cleaning device 4100 is connected to a cable or pipe (not shown in the figure), and the cable or pipe will be in a drooping state under the action of gravity, which may cause abnormalities (leakage or damage, etc.) in the connection position with the cleaning device 4100. Therefore, the cable or pipe is suspended on a suspension rope, and the suspension rope enables the cable or pipe to maintain a similar height or an approximately coaxial state with the cleaning device 4100.

[0071] Further, as attached Figure 1 , Attachment Figure 6 As shown, a code scanning mechanism 8000 is also arranged on the base plate 4600, and the code scanning mechanism 8000 includes a vertical pole 8100 arranged on the base plate 4600, a loading platform 8200 is arranged on the vertical pole 8100, and a cylinder 8300 is arranged on the loading platform 8200. The cylinder axis of the cylinder 8300 extends along the width direction of the battery module support platform and is connected to a frame 8600. The frame 8600 is provided with a code scanner 8400 with a lens facing downward and a light source 8500 with a light-emitting surface facing downward.

[0072] In the above structure, there is only one paper removal mechanism 3000 and one cleaning mechanism 4000, so only one end surface of the battery cell module can be removed and one side surface can be cleaned at one time.

[0073] After one paper removal and cleaning operation, the battery module can be horizontally rotated 180 degrees by manual or automated equipment to remove paper from the other end face and clean the other side face.

[0074] When automated equipment is used to realize the rotation of the battery cell module, it can be realized in different ways. For example, in one feasible way, the battery cell module support platform can be a self-rotating structure, and the battery cell module support platform is connected to a rotating drive mechanism that drives its self-rotation. In this case, the battery cell module support platform can be a circular table, and a rotating shaft (not shown in the figure) is coaxially connected to its bottom, and the rotating shaft is connected to the inner hole of the bearing on the workbench, and the rotating shaft is directly or through a transmission structure connected to a motor that drives its self-rotation. Of course, in other embodiments, the battery cell module support platform can also be directly connected to a reduction motor that drives its self-rotation.

[0075] In another embodiment, a mobile robot, such as a six-axis robot, may be arranged on the workbench to rotate the battery cell module 180 degrees by the robot. This is a known technology and will not be described in detail.

[0076] In other embodiments, the cleaning mechanism and the paper removal mechanism can even be rotated 180°. The specific rotation structure here is the prior art and has a complex structure to implement. It is not a design point of this solution and will not be described in detail here.

[0077] In a preferred embodiment, as shown in the attached Figure 1 As shown, there are two paper removal mechanisms 3000 and two cleaning mechanisms 4000. Under normal circumstances, the two paper removal clamps 3100 of the paper removal mechanisms 3000 are diagonally distributed, and the two cleaning devices 4100 of the cleaning mechanisms 4000 are diagonally distributed, and the diagonals of the two paper removal clamps 3100 intersect with the diagonals of the two cleaning devices 4100. Therefore, when the four components work at the same time, they can effectively avoid interference with each other and improve the matching degree between each other, which is beneficial to improving the working rhythm and improving efficiency.

[0078] When the above-mentioned wire module surface pretreatment device is used to pretreat the surface of the battery cell module, the following process is included;

[0079] S01, manually or through automated equipment, place the battery cell module with the tape on the battery cell module support platform 1000, and make the two ends of the battery cell module face the battery cell module locking mechanism 2000.

[0080] S02, the two moving devices 2150 of the battery cell module locking mechanism 2000 drive the two pressing plates 2110 to move toward each other so as to position and fix the battery cell module.

[0081] S03, the two linear moving devices 3300 of the paper removal mechanism 3000 drive the paper removal clamps 3100 to extend forward, and then the clamp cylinder 3110 starts to drive the two clamps 3120 to clamp the heads of the protective paper on the tape at both ends of the battery cell module. Then, the linear moving device 3300 drives the paper removal clamps 3100 to retract and separate the heads of the protective paper from the adhesive layer; then the two driving devices 3400 drive the two paper removal clamps 3100 to move toward each other, thereby tearing off the two protective papers.

[0082] S04, while the paper removal mechanism 3000 is working, the cylinder shafts of the push-pull cylinders 4500 of the two cleaning mechanisms 4000 are extended to make the two cleaning devices 4100 close to the two sides of the battery cell module, and the cleaning devices 4100 start to clean. Then the two cleaning moving devices 4200 drive the cleaning devices 4100 connected to them to move toward each other to achieve simultaneous cleaning of the two sides of the battery cell module.

[0083] S05, after the two paper removal clamps 3100 move to the top of the protective paper collector 6000, the clamp cylinder opens the two clamps to untie the protective paper, and the protective paper is blown into the protective paper collector 6000 under the airflow of the purge device 7000. After the paper removal and cleaning are completed, the components are reset.

[0084] In addition, when the paper removal determination mechanism 5000 determines that the protective paper has not been torn off, an alarm may be issued to remind the staff to manually tear off the protective paper before unloading.

[0085] This solution further discloses a battery pack assembly production line, as shown in the attached Figure 7 As shown, it includes the above-mentioned cell module surface pretreatment device 10, and also includes a transfer mechanism 20 and a battery pack assembly device 30. The transfer mechanism 20 is at least used to move the cell module treated by the cell module surface pretreatment device to the battery pack assembly device, and can also transfer the terminal and the partition, which can be various feasible transfer devices, such as a six-axis robot. The battery pack assembly device is used to assemble the cell module, the terminal and the partition thereon into one body.

[0086] As attached Figure 8 , Attachment Fig. 9 As shown, the battery pack assembly device 30 includes a bracket 100, and the bracket 100 can be a structure composed of various known profiles and / or plates. Preferably, it includes a lower layer 110 and an upper layer 120 composed of multiple criss-cross profiles. The bracket 100 is also provided with a battery cell module placement platform 200, a battery cell module fixing mechanism 300, an end terminal attaching mechanism 400 and a partition limiting mechanism 500.

[0087] As attached Fig. 9As shown, the cell module placement platform 200 is used to place two cell modules side by side. It is mounted on the upper layer 120 and includes a rectangular bottom plate 210 and a rectangular support plate 220 fixed on the bottom plate 210. The width of the support plate 220 can be designed as needed, preferably greater than the sum of the width of the two cell modules and the thickness of the partition. In addition, avoidance holes 230 are formed on the bottom plate 210 and the support plate 220, which are opposite to each other and close to the two ends of their short sides. The avoidance holes 230 are used for sensors to sense whether a cell module is placed at the corresponding position.

[0088] Of course, in other embodiments, the battery module placement platform 200 may also be made of plates of other shapes, such as a disc, an elliptical disc or other polygonal plates. In addition, the battery module placement platform 200 may also be a structure assembled from crisscross or parallel profiles, so as to support two battery modules.

[0089] As attached Figure 8 -Attached Fig.10 As shown, the battery cell module fixing mechanism 300 is used to position the battery cell module on the battery cell module placement platform 200 and attach the two battery cell modules and the partition as a whole, and includes pressure mechanisms located on the four sides of the battery cell module placement platform 200, the pressure mechanisms are opposite to each other and apply pressure opposite to each other on the battery cells on the battery cell module placement platform 200.

[0090] Specifically, as attached Fig. 9 , Attachment Fig.10 As shown, the cell module pressure mechanism includes a first pressure mechanism 310 and a second pressure mechanism 320 located on the left and right sides of the cell module placement platform 200, and a third pressure mechanism 330 and a fourth pressure mechanism 340 located on the upper and lower sides of the cell module placement platform 200. The first pressure mechanism 310 and the second pressure mechanism 320 are both arranged on the lower layer 110 of the bracket 100, and their structures are the same. The first pressure mechanism 310 is taken as an example for description in the following embodiments.

[0091] As attached Fig.11 , Attachment Fig.12As shown, the first pressure mechanism 310 includes a pressing block 311, the height of which satisfies the adhesive layer above the end surface of the battery module on the battery module placement platform 200, so as to avoid damaging the adhesive layer when applying force. The length of the pressing block 311 from one end to the other end can be designed as needed, for example, the length of the pressing block 311 is greater than the width of the battery module placement platform 200, or their lengths are equal; or, the length of the pressing block 311 is equal to the sum of the widths of the two battery modules; preferably, the two ends of the pressing block 311 extend to the outside of the two long sides of the battery module placement platform 200.

[0092] The pressing block 311 is connected to a moving device that drives it to move back and forth in a straight line in the left and right directions. The moving device can be any known device or structure that can produce a straight line movement, such as a cylinder, an oil cylinder or an electric push rod, or a structure composed of a motor and a lead screw, etc. In a preferred embodiment, as shown in the attached Fig.11 , Attachment Fig.12 As shown, the moving device includes a first cylinder 312, which is fixed on a gantry 313 located on the lower layer 110. The cylinder axis of the first cylinder 312 is vertically connected to the pressure block 311. The pressure block 311 is also vertically connected to a guide column 314, and the guide column 314 is slidably inserted into a guide sleeve 315 fixed on the gantry 313.

[0093] At this time, when the cylinder shafts of the two first cylinders of the first pressing mechanism 310 and the second pressing mechanism 320 are extended, the distance between the two pressing blocks is the same as the width of the battery module.

[0094] Since a large-stroke movement requires a larger cylinder volume, after the pressure block contacts the battery cell module, especially when the distance between the two pressure blocks is the smallest, the impact on the battery cell module is relatively large, which can easily cause damage to the battery cell module. Therefore, in a preferred structure, the stroke of the first cylinder 312 is reduced, that is, after the cylinder shaft of the first cylinder 312 is extended, the pressure block 311 has not yet contacted the two ends of the battery cell module. At this time, another level of translation structure is added to move the two pressure blocks 311 to the target spacing.

[0095] The following description will continue with the first pressure mechanism 310 as an example. Fig.11 , Attachment Fig.12As shown, the first cylinder 312, guide rod, guide sleeve, gantry, etc. constitute a primary push-pull mechanism, which is arranged on a secondary push-pull mechanism, and the secondary push-pull mechanism includes a bearing plate 316, which is slidably arranged on a guide rail 318 fixed on the lower layer 110 through a slider 317, and the guide rail 318 extends in a length direction parallel to the battery module placement table, and the bearing plate 316 is connected to a second cylinder 319 that drives it to slide along the guide rail 318. Of course, the second cylinder can also be replaced by a device that can produce linear movement, such as an oil cylinder or an electric cylinder.

[0096] The movement strokes of the second cylinder 319 and the first cylinder 312 can be limited according to actual needs. For example, the grooves of the two cylinders can be the same or different. In the preferred structure, as shown in the attached Fig.11 As shown, the first cylinder 312 adopts a small cylinder with a smaller stroke, and the second cylinder adopts a large cylinder with a stroke greater than that of the first cylinder 312, and when pressure is applied, it is preferred to extend the cylinder shaft of the second cylinder first, and then extend the cylinder shaft of the first cylinder. The advantage of such an action is that since the first cylinder 312 adopts a small cylinder, the impact force it generates on the battery cell module is smaller, and it is not easy to cause damage to the battery cell module.

[0097] The above-mentioned embodiment is described by taking the structures of the first pressure mechanism 310 and the second pressure mechanism 320 being the same as an example; of course, in other embodiments, the structures of the first pressure mechanism 310 and the second pressure mechanism 320 may also be different, for example, one of the first pressure mechanism 310 and the second pressure mechanism 320 has a one-stage push-pull structure, and the other has a two-stage push-pull structure; or the power sources of the first pressure mechanism 310 and the second pressure mechanism 320 are one cylinder and the other a motor, etc.

[0098] As attached Fig.10 As shown in FIG. 1 , the structures of the third pressure mechanism 330 and the fourth pressure mechanism 340 are similar to the structure of the primary push-pull mechanism of the first pressure mechanism 310, except that the length and width of the pressing blocks 331 and 341 of the third pressure mechanism 330 and the fourth pressure mechanism 340 are equivalent to the length and width of the battery module. Fig.13 As shown, the moving devices of the third pressure mechanism 330 and the fourth pressure mechanism 340 use motors 332 and 342 as power sources, and the moving devices may be electric push rods, so that the moving distance of the pressure heads of the third pressure mechanism 330 and the fourth pressure mechanism 340 can be adjusted. Of course, the moving devices of the third pressure mechanism 330 and the fourth pressure mechanism 340 may also use air cylinders or oil cylinders.

[0099] Furthermore, in a more preferred embodiment, in order to reduce the impact of the pressure head on the battery module when applying pressure, as shown in the attached Fig.10 -Attached Fig.12 As shown, a buffer pad 350 is also provided on the end surface of the front end surface of the pressure head of the four pressure-applying mechanisms facing the battery module placement table. The buffer pad 350 can be a soft material such as a silicone pad, a rubber pad, etc. At this time, the distance between the relative pressure heads can be adaptively adjusted according to the thickness of the buffer pad 350.

[0100] As attached Fig. 9 As shown, there are two terminal attachment mechanisms 400, which are located outside the two ends of the battery module placement platform 200, and are used to fix the two terminals and attach the two terminal terminals to the two ends of the battery module. Fig.11 , Attachment Fig.12 As shown, each terminal attaching mechanism 400 has a supporting platform 410 and a fixing mechanism 420 , which can move synchronously relative to the battery cell module placement platform 200 .

[0101] Specifically, as attached Fig.11 As shown, the support platform 410 is an L-shaped member, which includes a bottom plate 411 parallel to the top surface of the battery module placement platform 200 and higher than the battery module placement platform 200, and a vertical plate 412 located thereon. The width of the bottom plate 411 can be smaller than the width of the end head or larger than the width of the end head, preferably smaller than the width of the end head. The length of the vertical plate 412 is smaller than the length of the end head, of course, its length can also be equal to or larger than the length of the end head. The reason why the length of the vertical plate 412 is smaller than the length of the end head is to facilitate the setting of the fixing mechanism 420. The support platform 410 makes the top of the end head on it not higher than the bottom surface of the pressure plate of the first pressure mechanism 310.

[0102] As attached Fig.11 , Attachment Fig.12 As shown, the fixing mechanism 420 can be various known fixing structures, for example, a group of vacuum adsorption holes are formed on the bottom plate 411 and / or the vertical plate 412, which are not shown in the figure, and the vacuum adsorption holes are connected to a vacuum pumping device, so that the end can be adsorbed and fixed by the negative pressure of the vacuum adsorption holes. Alternatively, when the end is a magnetic conductor, the bottom plate 411 and / or the vertical plate 412 can be a magnet; or a pressing mechanism can be set on the vertical plate 412, and the pressing mechanism can apply a pressure to the end on the bottom plate 411 so that the end is confined on the bottom plate 411.

[0103] In a preferred embodiment, as shown in the attached Fig.11 , Attachment Fig.12As shown, the fixing mechanism 420 includes a clamping cylinder 421 fixed on the vertical plate 412, and the two movable blocks of the clamping cylinder 421 are respectively connected to a clamping plate 422, and the two clamping plates 422 are located outside the two sides of the vertical plate 412. The clamping cylinder 421 drives the two clamping plates 422 to contract or open, thereby clamping or loosening the end located on the bottom plate 411.

[0104] As attached Fig.11 , Attachment Fig.12 As shown, the support platform 410 and the fixing mechanism 420 are also connected to a translation mechanism 430 that drives them to move synchronously and linearly. The translation mechanism 430 can be a device or structure that drives them to move back and forth linearly along the length direction parallel to the battery module placement platform, for example, it can be a cylinder or an oil cylinder. Preferably, it includes a third cylinder 431, the third cylinder 431 is connected to a carrier plate 432 and drives the carrier plate 432 to move back and forth along a slider 434 through a slide rail 433 at the bottom thereof, the slide rail 433 extends along the length direction parallel to the battery module placement platform, and the support platform 410 is arranged on the carrier plate 432.

[0105] The moving stroke of the third cylinder 431 of the two translation mechanisms 430 can be designed according to requirements. Similarly, they can drive the spacing between the relative end faces of the end heads located on the support platform 410 to be consistent with the length of the battery cell module, so that the two end heads can be effectively attached to the two ends of the battery cell module.

[0106] Of course, at this time, it also has the problem of large impact due to large stroke, so as shown in the attached Fig.11 As shown, the translation mechanism 430 can also adopt a two-stage translation mechanism. In a preferred embodiment, the third cylinder 431, the slide rail 433 and the slider 434 are arranged on the supporting plate 316 of the first pressure mechanism 310, so that the translation mechanism 430 does not need to be additionally provided with a first-stage translation structure. At this time, the third cylinder 431 can adopt a small-stroke cylinder, which can reduce the impact on the battery module during attachment on the one hand, and simplify the structure on the other hand to make the overall structure more compact.

[0107] When the end head is placed on the support platform 410, there is a situation where the end head and the vertical plate 412 of the support platform 410 do not fit together, resulting in position error, thereby reducing the accuracy of subsequent assembly. Fig. 9 As shown, the battery pack assembly device further includes two terminal pre-positioning mechanisms 600 , and each terminal pre-positioning mechanism 600 is matched with a terminal attaching mechanism 400 .

[0108] As attached Fig.14 , Attachment Fig.15As shown, the end pre-positioning mechanism 600 includes a pressing head 610, and the pressing head 610 can be translated between the battery cell module placement platform 200 and the support platform 410, and the pressing head 610 can be moved from below the top surface of the battery cell module placement platform 200 to above the top surface.

[0109] Specifically, the pressure head 610 is preferably a flat plate, and it is perpendicular to the length direction of the electrical module placement table. Of course, it can also be other shapes, such as an L-shaped piece or a cylindrical piece. The pressure head 610 is fixed to at least one level of a horizontal push mechanism 620 that drives it to move back and forth in the left and right directions along the length direction of the battery module placement table. The horizontal push mechanism 620 is arranged on a lifting mechanism 630 that drives it to move back and forth in a direction perpendicular to the electrical module placement table.

[0110] As attached Fig.14 , Attachment Fig.15 As shown, the horizontal push mechanism 620 includes a fourth cylinder 621, and the fourth cylinder 621 is fixed on the lifting mechanism 630. The cylinder shaft of the fourth cylinder 621 is clamped with an adapter 622, and the adapter 622 is connected to a support plate 623. The support plate 623 is slidably arranged on a guide block 625 on the lifting mechanism 630 through a guide rail 624 arranged at the bottom thereof, and the guide rail 624 extends along the length direction of the battery cell module placement platform 200; the pressure head 610 is vertically arranged on the support plate 623, and the pressure head 610 is arranged on the support plate 623.

[0111] Of course, in a more preferred embodiment, as shown in the attached Fig.14 , Attachment Fig.15 As shown, the pressing head 610 also includes a second-stage pushing mechanism, which is a fifth cylinder 626 fixed on the support plate 623. The extension direction of the cylinder axis of the fifth cylinder 626 is parallel to the length direction of the battery module placement table 200, and the cylinder axis of the fifth cylinder 626 is connected to the pressing head 610.

[0112] As attached Fig.14 As shown, the lifting mechanism 630 includes a lifting plate 631, the fourth cylinder 621 and the guide block 625 are fixed on the lifting plate 631, the lifting plate 631 is connected to a sixth cylinder 632, the sixth cylinder 632 is fixed on a base plate 634 located at the bottom of the bracket 100, the base plate 634 is connected to the bracket 100 through a group of pillars 633, and the lifting plate 631 is connected to two guide columns 635, and the guide columns 635 can be slidably inserted in the guide sleeve 636 arranged on the base plate 634.

[0113] Each of the end pre-positioning mechanisms 600 may have a lifting mechanism 630 . In a preferred embodiment, two of the end pre-positioning mechanisms 600 share one lifting mechanism 630 to simplify the structure.

[0114] As attached Fig.16 As shown, the partition limiting mechanism 500 is used to limit the partition, and it has a limiting groove 510. The limiting groove 510 can pass through the battery module placement platform 200, and its two opposite inner walls 511 and 512 are parallel to the length direction of the battery module placement platform, and preferably, the limiting groove 510 is located in the middle of the battery module placement platform 200, so that the width of the electrical module placement platform on both sides is the same. The width of the limiting groove 510 is equivalent to the thickness of the partition, and its depth can be designed as needed to meet the requirement that when the limiting groove 510 rises to the top of the battery module placement platform 200, the bottom of the limiting groove 510 does not exceed the top surface of the battery module placement platform 200.

[0115] The movement of the limiting groove 510 can be achieved by a set of independent lifting mechanisms. In a preferred embodiment, the limiting groove 510 and the end pre-positioning mechanism 600 share a lifting mechanism, that is, the limiting groove 510 is arranged on the lifting plate 631 of the lifting mechanism 630, so that it can be lifted and lowered synchronously with the pressure head 610 of the end pre-positioning mechanism.

[0116] In actual use, if only one limiting groove 510 is used to limit the partition, its stability will be poor, and the partition cannot be pre-positioned to a certain extent; therefore, in a more optimal structure, such as the attached Fig.14 -Attached Fig.16 As shown, auxiliary positioning grooves 640 are respectively provided on the opposite end faces of the two pressing heads 610, and the two opposite inner side faces 641, 642 of the auxiliary positioning grooves 640 are respectively coplanar with the two opposite inner walls 511, 512 of the limiting groove 510, so that the two auxiliary positioning grooves 640 cooperate with the limiting groove 510 to pre-position the end plate. The top surface height of the auxiliary positioning groove 640 is higher than the top surface of the limiting groove, so after the limiting groove 510 moves below the top surface of the battery module, the auxiliary positioning groove 640 can still limit the partition, and at this time the third pressure mechanism and the fourth pressure mechanism can continue to start to push the battery module.

[0117] In actual use, after the battery cell module, terminal and partition are assembled into one, it is necessary to use a feeding robot to move the assembled whole out of the battery cell module placement table for subsequent reassembly. In order to speed up the overall working rhythm of the equipment and save feeding time, the bracket 100, the battery cell module placement table 200, the battery cell module fixing mechanism 300, the terminal attachment mechanism 400, the partition limiting mechanism 500, and the terminal pre-positioning mechanism 600 are two sets, and the two sets of structures adopt a high and low position setting, that is, one set of structures is located at the top and the other is located at the bottom. Of course, they can also be arranged side by side. The reason for adopting the high and low position setting is that the high and low position setting can better utilize the longitudinal space and save floor space; at the same time, it can better match the height of the higher feeding robot to make up for the travel problem of the feeding robot. Furthermore, the two sets of brackets 100 can slide along the two guide bars 700. The brackets 100 are connected to a driving mechanism 800 that drives them to reciprocate along the guide bars 700. The driving mechanism 800 can also generate various devices for linear movement, such as oil cylinders, pneumatic cylinders, etc., preferably a linear motor or a linear module, whose sliders are connected to the brackets 100.

[0118] In a further preferred structure, in order to reduce power requirements and energy consumption, the battery cell module placement table 200, the two relative pressure mechanisms, the first pressure mechanism and the second pressure mechanism, the end attaching mechanism 400 and the partition limiting mechanism 500 of the battery cell module fixing mechanism 300 in each set of the structure are arranged on the bracket 100; the other two relative pressure mechanisms, the third pressure mechanism and the fourth pressure mechanism of the battery cell module fixing mechanism 300 are fixed in position, specifically, they are fixed on the frame 900.

[0119] When the entire equipment is running, various control devices, such as PLC, can be used in combination with various sensors, such as proximity switches, position switches, etc. to start and stop and switch the status of various motors, cylinders and other components. This is a known technology and is not an innovation of this solution, so it will not be elaborated here.

[0120] The following is a detailed description of the method for assembling a battery cell module using the above-mentioned battery pack assembly device, which includes the following steps:

[0121] S1, after the equipment is started, the cylinder shaft of the sixth cylinder 632 of the lifting mechanism 630 extends, so that the limiting groove 510 extends from the bottom of the battery cell module placement platform 200 to the top of the battery cell module placement platform 200.

[0122] S2, manually or through automated equipment, placing a cell module on the cell module placement platform 200 and on one side of the limiting groove 510.

[0123] S3, then, manually or through automated equipment, the two terminals are placed on the support tables 410 of the two terminal attaching mechanisms 400 respectively.

[0124] S4, at this time, the cylinder shafts of the fourth cylinder 621 and / or the fifth cylinder 626 of the end pre-positioning mechanism 600 are extended respectively, driving the two pressing heads 610 to move toward the support platform 410 respectively, so that the two pressing heads 610 apply thrust to the surfaces of the two ends respectively to make them fit with the vertical plate 412 of the support platform 410.

[0125] S5, then, the clamping claw cylinder 421 of the fixing mechanism 420 of the two end head attaching mechanisms 400 retracts the two clamping plates 422 to clamp and fix the end heads on the support platform 410, thereby achieving the positioning of the two end heads. After clamping, the cylinder shafts of the fourth cylinder 621 and / or the fifth cylinder 626 of the two end head pre-positioning mechanisms 600 are retracted, and at this time, the two auxiliary positioning grooves 640 are moved to;

[0126] S6, manually or through automated equipment, placing another battery cell module on the battery cell module placement platform 200 and on the other side of the limiting groove.

[0127] S7, then manually or through automated equipment, place the partition in the limiting groove 510 and the two auxiliary positioning grooves 640 to achieve positioning of the partition.

[0128] S8, then, the cylinder shafts of the second cylinders 319 and 329 of the first pressure mechanism 310 and the second pressure mechanism 320 of the battery cell module fixing mechanism 300 are extended first, and after the cylinder shaft of the second cylinder 319 is extended, the cylinder shafts of the first cylinders 312 and 322 are extended again, thereby driving the pressure blocks 311 and 321 to position the two end surfaces of the two battery cell modules and the partition.

[0129] S9, the motors 332, 342 of the third pressure mechanism 330 and the fourth pressure mechanism 340 of the battery module fixing mechanism 300 are started, driving the two pressure blocks 341, 331 to apply relative pressure to the outer sides of the two battery modules until the two battery modules and the partition maintain a set gap and then stop. The gap is preferably controlled to stop at 3-5mm. The control of the spacing here can calculate the pushing distance based on the data of the encoder of the motor, and then determine it in combination with the fixed spacing between the pressure plate and the limiting groove. This is a known technology and will not be elaborated here. It can also be achieved by auxiliary sensors such as laser rangefinders.

[0130] S10 , then, the cylinder shaft of the sixth cylinder 632 of the lifting mechanism 630 is retracted, so that the limiting groove 510 moves from the bottom of the battery cell module placement platform 200 to below the top surface of the battery cell module placement platform 200 .

[0131] S20, the two motors of the third pressing mechanism and the fourth pressing mechanism of the battery cell module fixing mechanism 300 are started again to attach the two battery cell modules to the partition plate.

[0132] S30, the cylinder shafts of the third cylinders 431 of the two terminal attachment mechanisms 400 extend to drive the two terminals on the two support platforms 410 to attach to the two ends of the battery module and the partition, thus completing the assembly.

[0133] S40, the driving mechanism 800 drives the bracket 100 and the structures thereon to move as a whole from one end of the guide bar 700 to the other end, and then the structures on the bracket 100 are reset, and manual or automated equipment is used for unloading.

[0134] S50, while one set of mechanisms is moving to unload materials, another set of mechanisms is assembled according to the above-mentioned S10-S40 process.

[0135] S60, two sets of mechanisms perform assembly and unloading alternately.

[0136] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A cell module surface treatment method based on a cell module surface pretreatment device, Features: The battery module surface pretreatment device comprises: Battery cell module support platform (1000); The cell module locking mechanism (2000) has a structure for forming negative pressure on a part of the top surface of the cell module support platform and / or applying downward pressure to the top surface of the cell module support platform and / or applying relative pressure to the space above the cell module support platform; A paper removal mechanism (3000) is located outside the end of the battery module support platform (1000) and can reciprocate along the extension direction of the end of the battery module support platform (1000); A cleaning mechanism (4000) comprising a cleaning device (4100) located outside the side of the battery module support platform (1000), wherein the cleaning device (4100) can at least reciprocate along the extension direction of the side of the battery module support platform (1000); The paper removal mechanism (3000) comprises a paper removal clamping claw (3100), the connection position of the paper removal clamping claw (3100) being adjustably arranged on a mounting plate (3200), the mounting plate (3200) being connected to a fixed position linear moving device (3300), the linear moving device (3300) being arranged on a driving device (3400) that drives it to reciprocate along the extension direction of the end of the battery module support platform (1000); The linear moving device (3300) drives the installation plate (3200) to move along a path that forms an acute angle with the angle (A) of the short side of the battery module support platform (1000); The paper removal mechanism (3000) and the cleaning mechanism (4000) work simultaneously to tear off the protective paper on the end surface of the battery cell module on the battery cell module support platform (1000) and to clean the side surface.

2. The method for treating the surface of a cell module based on the surface pretreatment device of the cell module according to claim 1, Features: The paper removal mechanism (3000) is arranged on the battery module locking mechanism (2000), and is driven by the battery module locking mechanism (2000) to reciprocate along the extension direction of the end of the battery module support platform (1000).

3. A method for treating the surface of a cell module based on a cell module surface pretreatment device according to any one of claims 1 to 2, Features: It also includes a paper removal determination mechanism (5000) for determining whether to tear off the protective paper of the tape.

4. A method for treating the surface of a cell module based on a cell module surface pretreatment device according to any one of claims 1 to 2, Features: A protective paper collector (6000) is provided below the paper removal mechanism (3000) and is located at one end thereof.

5. The method for treating the surface of a cell module based on the surface pretreatment device of the cell module according to claim 4, Features: A purge device (7000) is provided above the paper removal mechanism (3000) for forming an airflow toward the protective paper collector (6000).

6. The method for treating the surface of a cell module based on the surface pretreatment device of a cell module according to claim 1, Features: There are two cleaning devices (4100) with a height difference.

7. The method for treating the surface of a cell module based on the surface pretreatment device of a cell module according to claim 1, Features: The battery module support platform (1000) is self-rotatable; Or there are two paper removal mechanisms (3000) and two cleaning mechanisms (4000), and under normal conditions, the paper removal clamps (3100) of the two paper removal mechanisms (3000) are diagonally distributed, and the cleaning devices (4100) of the two cleaning mechanisms (4000) are diagonally distributed.

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