Nail pulling device

Abstract

The utility model provides a nail pulling device which comprises a nail pulling mechanism used for pulling out a plastic nail of a battery monomer, a nail pulling mechanism and a nail pulling mechanism, the compensation mechanism is connected with the nail pulling mechanism; the first driving mechanism is connected with the compensation mechanism and used for driving the nail pulling mechanism to move in the first direction through the compensation mechanism; the compensation mechanism is used for providing motion compensation in the first direction for the nail pulling mechanism. Under the condition that the surface of a cover plate is uneven due to the fact that some battery monomers are not flatly placed, the compensation mechanism can provide movement compensation in the first direction for the nail pulling mechanism, so that a clamping jaw of the nail pulling mechanism can still smoothly clamp a plastic nail on the cover plate of the battery monomer and complete nail pulling operation; therefore, the problem that the nail pulling device is not thorough in nail pulling under the condition that the single batteries are not flatly placed is effectively solved, and the nail pulling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a nail pulling device. Background Art

[0002] When preparing batteries, it is necessary to remove the glue nails from the battery cells before baking. In traditional technology, the nail removal operation of the battery cells is mainly completed manually with a clamp. This method has low nail removal efficiency, high labor costs, and the entire nail removal process is time-consuming and labor-intensive.

[0003] With the continuous improvement of lithium battery production technology, automated nail pulling devices have gradually emerged, which can realize the nail pulling operation of battery cells through mechanical control, freeing up manual labor. However, since the incoming battery cells may be unevenly placed during the nail pulling process, the nail pulling device is prone to only pulling out some of the nails, and some nails cannot be successfully pulled out, resulting in incomplete nail pulling, requiring secondary rework or manual removal. Utility Model Content

[0004] In view of this, the utility model provides a nail pulling device to at least solve the problem in the prior art that the nail pulling device is prone to incomplete nail pulling when the battery cells are not placed flat.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The utility model provides a nail pulling device, which comprises:

[0007] A nail pulling mechanism, which is used to pull out the glue nails of the battery cell;

[0008] A compensation mechanism, the compensation mechanism is connected to the nail pulling mechanism;

[0009] A first driving mechanism, the first driving mechanism is connected to the compensation mechanism, and is used to drive the nail pulling mechanism to move along a first direction through the compensation mechanism; wherein the compensation mechanism is used to provide movement compensation for the nail pulling mechanism in the first direction.

[0010] Optionally, the compensation mechanism comprises:

[0011] A floating member, wherein the floating member is fixedly connected to the nail pulling mechanism;

[0012] A seat body, wherein the seat body is fixedly connected to the first driving mechanism and movably connected to the floating member, and the floating member can move relative to the seat body along the first direction.

[0013] Optionally, the compensation mechanism further includes:

[0014] An elastic member is disposed between the floating member and the seat body, and is fixedly connected to the floating member and the seat body respectively.

[0015] Optionally, the nail pulling device further comprises:

[0016] The mounting plate is provided with the nail pulling mechanism and the floating member mounted on the mounting plate, wherein the nail pulling mechanism is mounted on a side of the floating member away from the first driving mechanism and extends out of an end of the mounting plate along the first direction.

[0017] Optionally, the compensation mechanism further includes:

[0018] A push rod, the push rod is mounted on a side of the mounting plate away from the first driving mechanism, and the push rod extends along the first direction to be flush with an end of the nail pulling mechanism. Optionally, the nail pulling mechanism includes:

[0019] A clamping jaw, wherein the clamping jaw is arranged along the first direction, and the push rod extends along the first direction to be flush with the end of the clamping jaw;

[0020] The second driving mechanism is installed on the mounting plate, and the second driving mechanism is connected to the clamping jaw and is used to drive the clamping jaw to clamp or loosen so that the clamping jaw can pull out the glue nail.

[0021] Optionally, the nail pulling device further comprises:

[0022] A scraper plate, the scraper plate is arranged on a side of the clamping claw away from the mounting plate in a direction perpendicular to the mounting plate;

[0023] The third driving mechanism is connected to the scraper plate and is used to drive the scraper plate to move in a direction perpendicular to the mounting plate so that the scraper plate can scrape off the glue nails clamped by the clamping claws.

[0024] Optionally, the nail pulling device further comprises:

[0025] A guide rail is arranged along the first direction, and the mounting plate is slidably connected to the guide rail.

[0026] Optionally, the nail pulling device further comprises:

[0027] A first detection mechanism is used to detect the nail pulling state of the nail pulling mechanism.

[0028] Optionally, the nail pulling device further comprises:

[0029] The second detection mechanism is used to detect the state of the glue nails on the battery cell.

[0030] Compared with the prior art, the nail pulling device described in the utility model has the following advantages:

[0031] In the nail pulling device of the utility model, the first driving mechanism is connected to the compensation mechanism, and the compensation mechanism is connected to the nail pulling mechanism. The first driving mechanism drives the nail pulling mechanism to move in the first direction through the compensation mechanism to perform the nail pulling operation. In the case where some battery cells are unevenly placed, resulting in uneven surface of their cover plates, the compensation mechanism can provide movement compensation in the first direction for the nail pulling mechanism, so that the clamping claws of the nail pulling mechanism can still smoothly clamp the glue nails on the battery cell cover plate and complete the nail pulling operation, thereby effectively solving the problem of incomplete nail pulling of the nail pulling device when the battery cells are unevenly placed, and improving the nail pulling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of a nail pulling device in an embodiment of the utility model;

[0034] Figure 2 This is a front view of a nail pulling device in an embodiment of the utility model;

[0035] Figure 3 It is a side view of a nail pulling device in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 10-frame, 101-reinforcement rib, 1-nail pulling mechanism, 11-clamping claw, 12-second driving mechanism, 2-compensation mechanism, 21-floating member, 22-seat body, 23-elastic member, 24-push rod, 3-first driving mechanism, 4-mounting plate, 51-scraper plate, 52-third driving mechanism, 6-guide rail, 61-guide rail seat, 7-first detection mechanism, 71-first mounting plate, 8-second detection mechanism, 81-second mounting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0040] The term "parallel" in the specification and claims of the utility model includes not only the absolute parallel situation, but also the roughly parallel situation conventionally recognized in engineering, such as "parallel" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is -1° to 1°; at the same time, "vertical" also includes not only the absolute vertical situation, but also the roughly vertical situation conventionally recognized in engineering, such as "vertical" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is 89° to 91°. Equal distances or equal angles include not only the absolute equal situation, but also the roughly equal situation conventionally recognized in engineering, that is, there may be certain errors, such as the state where the tolerance range is -1% to 1%.

[0041] It should be understood that the reference to "some embodiments" throughout the specification means that specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the utility model. Therefore, the "in some embodiments" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0042] A nail pulling device provided by the utility model is described in detail below by listing specific embodiments.

[0043] Reference Figures 1 to 3 A nail pulling device provided by an embodiment of the utility model includes: a nail pulling mechanism 1, which is used to pull out the glue nails of the battery cell; a compensation mechanism 2, which is connected to the nail pulling mechanism 1; a first driving mechanism 3, which is connected to the compensation mechanism 2 and is used to drive the nail pulling mechanism 1 to move along a first direction through the compensation mechanism 2; wherein the compensation mechanism 2 is used to provide movement compensation in the first direction for the nail pulling mechanism 1.

[0044] Specifically, the nail pulling device has a frame 10, and the nail pulling mechanism 1, the compensation mechanism 2 and the first driving mechanism 3 are all installed on the frame 10. Some reinforcing ribs 101 can be set on the frame 10 to improve the stability and reliability of the frame 10. The nail pulling device can be used to remove the glue nails for the battery cells in the battery pack. The glue nails are located on the cover plate of the battery cell. When performing the nail pulling operation, the nail pulling mechanism 1 in the nail pulling device approaches the cover plate of the battery cell. The nail pulling mechanism 1 includes a clamping jaw 11. In the process of the nail pulling mechanism 1 approaching the battery cell cover plate, the clamping jaw 11 will also approach the battery cell cover plate. When the clamping jaw 11 contacts or is about to contact the battery cell cover plate, the clamping jaw 11 can clamp the glue nails on the battery cell cover plate, and then the nail pulling mechanism 1 moves in a direction away from the battery cell cover plate, so that the clamping jaw 11 removes the clamped glue nails, thereby realizing the nail pulling operation of the battery cell. The compensation mechanism 2 is connected to the nail pulling mechanism 1, and the first driving mechanism 3 is connected to the compensation mechanism 2. The first driving mechanism 3 can drive the nail pulling mechanism 1 to move in the direction close to or away from the battery cell cover through the compensation mechanism 2. The first driving mechanism 3 can be a driving cylinder, a driving motor, etc. The embodiment of the utility model uses a slide cylinder to improve the stability and timeliness of the driving process and control the overall production cost of the device. The embodiment of the utility model refers to the direction close to or away from the battery cell cover as the first direction, such as Figures 1 to 3 As shown in the first direction X in FIG. 1 , the clamping jaw 11 is arranged along the first direction X. The nail pulling device of the embodiment of the utility model further has a second direction Y and a third direction Z. The second direction Y and the third direction Z are both perpendicular to the first direction X. The first direction X, the second direction Y and the third direction Z constitute a spatial rectangular coordinate system.

[0045] When the nail pulling device is pulling nails out of a battery cell, multiple battery cells are usually placed in a tray and arranged side by side in the tray. A push plate is provided in the tray, which can push the multiple battery cells in the tray to a position close to the nail pulling device to facilitate the nail pulling device to pull nails out. When removing the glue nails on the first battery cell cover, the first driving mechanism 3 drives the nail pulling mechanism 1 to extend along the first direction X through the compensation mechanism 2 until the clamping claw 11 of the nail pulling mechanism 1 clamps the glue nails on the first battery cell cover, and then the first driving mechanism 3 drives the nail pulling mechanism 1 to retract along the first direction X through the compensation mechanism 2, so that the nail pulling mechanism 1 removes the clamped glue nails; when removing the glue nails on the second battery cell cover, the nail pulling device moves along the second direction Y, driving the nail pulling mechanism 1 to move to the second battery cell, and the first driving mechanism 3 continues to drive the nail pulling mechanism 1 to extend along the first direction X through the compensation mechanism 2 until the clamping claw 11 of the nail pulling mechanism 1 clamps the glue nails on the second battery cell cover, and then the first driving mechanism 3 drives the nail pulling mechanism 1 to retract along the first direction X through the compensation mechanism 2, so that the nail pulling mechanism 1 removes the clamped glue nails; the cycle is repeated in sequence to realize the nail pulling operation of multiple battery cells.

[0046] In the above-mentioned nail pulling process, the distance that the push plate pushes the battery cell to move is pre-set by the operator through the program or software, and the driving stroke of the first driving mechanism 3 is also pre-set by the operator through the program or software. For example, the operator can set the push plate to push the battery cell to move 30 mm along the first direction X. At this time, the distance between the battery cell cover and the clamping claw 11 of the nail pulling mechanism 1 is 50 mm, so that the operator can set the driving stroke of the first driving mechanism 3 to 50 mm. In each nail pulling operation of the nail pulling mechanism 1, the first driving mechanism 3 drives the nail pulling mechanism 1 to extend 50 mm along the first direction X, so that the clamping claw 11 of the nail pulling mechanism 1 contacts the battery cell cover, and can smoothly clamp the glue nails on the battery cell cover and pull them out. However, in some implementation scenarios, after the push plate pushes the battery cell to move 30 mm along the first direction X, some battery cells may continue to move a certain distance along the first direction X due to inertia, for example, 2 mm. At this time, the distance between the protruding part of the battery cell cover and the clamping claw 11 of the nail pulling mechanism 1 becomes 48 mm, causing multiple battery cells to be unevenly placed and the cover surface to be uneven. When the nail pulling mechanism 1 is performing a nail pulling operation on the battery cell, the clamping claw 11 of the nail pulling mechanism 1 may generate a large squeezing force on the protruding part of the battery cell cover surface, causing damage to the battery cell cover surface, etc., and may also cause the clamping claw 11 to deviate from the target position, resulting in nail pulling failure, thereby causing incomplete nail pulling, requiring secondary rework or manual removal.

[0047] In the embodiment of the utility model, the compensation mechanism 2 can provide movement compensation in the first direction X for the nail pulling mechanism 1, that is, for the battery cell of the protruding part, the compensation mechanism 2 can allow the nail pulling mechanism 1 to perform a slight movement in the first direction X, so that the clamping jaws 11 of the nail pulling mechanism 1 can smoothly clamp the glue nails on the battery cell cover and complete the nail pulling operation. Combined with the above-mentioned implementation scenario, the distance between the battery cell cover of the protruding part and the clamping jaws 11 of the nail pulling mechanism 1 becomes 48mm. Since the driving stroke pre-set by the first driving mechanism 3 is 50mm, the clamping jaws 11 of the nail pulling mechanism 1 will be driven to extend 50mm along the first direction X. At this time, under the action of the compensation mechanism 2, the clamping jaws 11 of the nail pulling mechanism 1 can retreat 2mm along the first direction X, so that the total extension of the clamping jaws 11 of the nail pulling mechanism 1 is 48mm, so that the clamping jaws 11 of the nail pulling mechanism 1 can just contact with the battery cell cover, smoothly clamp the glue nails on the cover and remove them. Among them, the compensation mechanism 2 can control the clamping jaw 11 to retreat 2mm in advance to achieve compensation when the clamping jaw 11 of the nail pulling mechanism 1 has not yet contacted the battery cell cover plate. The compensation mechanism 2 can also control the clamping jaw 11 to stop moving when the clamping jaw 11 of the nail pulling mechanism 1 contacts the battery cell cover plate, which is equivalent to retreating 2mm to achieve compensation. The compensation method of the compensation mechanism 2 is not limited in the embodiment of the utility model.

[0048] In summary, in the nail pulling device of the embodiment of the utility model, the first driving mechanism 3 is connected to the compensation mechanism 2, and the compensation mechanism 2 is connected to the nail pulling mechanism 1. The first driving mechanism 3 drives the nail pulling mechanism 1 to move along the first direction to perform the nail pulling operation through the compensation mechanism 2. In the case that some battery cells are unevenly placed, resulting in uneven surface of their cover plates, the compensation mechanism 2 can provide movement compensation in the first direction X for the nail pulling mechanism 1, so that the clamping claw 11 of the nail pulling mechanism 1 can still smoothly clamp the glue nails on the battery cell cover plate and complete the nail pulling operation, thereby effectively solving the problem of incomplete nail pulling of the nail pulling device when the battery cells are unevenly placed, and improving the nail pulling efficiency.

[0049] Optionally, refer to Figure 1 and Figure 3 The nail pulling device also includes: a mounting plate 4, on which the nail pulling mechanism 1 and the compensation mechanism 2 are both mounted, wherein the nail pulling mechanism 1 is mounted on a side away from the first driving mechanism 3 and extends out of the end of the mounting plate 4 along the first direction.

[0050] Specifically, the mounting plate 4 is a flat plate structure of a rectangular, square or other shape, and the area of ​​the mounting plate 4 needs to be large enough to provide sufficient installation space for the nail pulling mechanism 1 and the compensation mechanism 2. The nail pulling mechanism 1 and the compensation mechanism 2 are fixed on the mounting plate 4, and the nail pulling mechanism 1 and the compensation mechanism 2 can be detachably connected to the mounting plate 4 by fasteners such as bolts and screws. The nail pulling mechanism 1 and the compensation mechanism 2 can also be welded and fixed to the mounting plate 4. In order to facilitate the subsequent inspection and maintenance of the nail pulling mechanism 1 and the compensation mechanism 2, the embodiment of the utility model sets the nail pulling mechanism 1 and the compensation mechanism 2 to be detachably connected to the mounting plate 4. When the nail pulling mechanism 1 and the compensation mechanism 2 need to be inspected, the fasteners can be loosened to remove the nail pulling mechanism 1 and the compensation mechanism 2 from the mounting plate 4. The nail pulling mechanism 1 is installed on the side away from the first driving mechanism 3 so that the first driving mechanism 3 is connected to the compensation mechanism 2. The nail pulling mechanism 1 is driven to move by the compensation mechanism 2. At the same time, the nail pulling mechanism 1 extends out of the end of the mounting plate 4 along the first direction X so that the clamping claws 11 of the nail pulling mechanism 1 clamp the glue nails of the battery cell cover to avoid interference between the mounting plate 4 and the battery cell cover.

[0051] Optionally, refer to Figure 1 and Figure 3 The compensation mechanism 2 includes: a floating member 21, which is installed on the mounting plate 4 and fixedly connected to the nail pulling mechanism 1; a seat body 22, which is fixedly connected to the first driving mechanism 3 and movably connected to the floating member 21, and the floating member 21 can move relative to the seat body 22 along the first direction.

[0052] Specifically, the floating member 21 is installed and fixed on the mounting plate 4. The floating member 21 can be detachably connected to the mounting plate 4 by fasteners such as bolts and screws, or can be welded and fixed to the mounting plate 4. The embodiment of the utility model sets the floating member 21 to be detachably connected to the mounting plate 4, so as to facilitate the subsequent inspection and maintenance of the floating member 21. The floating member 21 is fixedly connected to the nail pulling mechanism 1. The floating member 21 can be a block of a rectangular, square or other shape. The bottom surface of the block is fixedly connected to the mounting plate 4, and the side surface of the block is fixedly connected to the nail pulling mechanism 1. The seat body 22 is detachably connected to the first driving mechanism 3 by fasteners. The floating member 21 is movably connected to the seat body 22. The floating member 21 can move relative to the seat body 22 along the first direction X, thereby realizing the motion compensation of the nail pulling mechanism 1. The floating member 21 can be a telescopic rod arranged along the first direction X, and the floating member 21 can also be an elastic member 23 arranged along the first direction X. The embodiment of the utility model does not limit the specific type of the floating member 21.

[0053] Optionally, refer to Figure 1 and Figure 3 The compensation mechanism 2 further includes: an elastic member 23, which is disposed between the floating member 21 and the seat body 22, and is fixedly connected to the floating member 21 and the seat body 22 respectively.

[0054] Specifically, the elastic member 23 is arranged between the floating member 21 and the seat body 22. One end of the elastic member 23 is fixedly connected to the floating member 21, and the other end is fixedly connected to the seat body 22. The types of the elastic member 23 include but are not limited to compression springs, soft rubber, soft silicone, etc. The elastic member 23 is used to achieve motion compensation of the nail pulling mechanism 1, so that the overall structure of the compensation mechanism 2 is simple, which is conducive to controlling the production cost of the compensation mechanism 2.

[0055] Optionally, refer to Figure 1 and Figure 3 The compensation mechanism 2 further includes: a push rod 24, which is installed on a side of the mounting plate 4 away from the first driving mechanism 3, and the push rod 24 extends along the first direction X to be flush with the end of the nail pulling mechanism 1.

[0056] Specifically, the push rod 24 is a rod-shaped structure extending along the first direction X. The push rod 24 is installed on the side of the mounting plate 4 away from the first driving mechanism 3. In some embodiments, the push rod 24 can be installed at the end of the mounting plate 4 along the first direction X. The push rod 24 and the mounting plate 4 are located in the same plane, that is, in the plane formed by the first direction X and the second direction Y. The push rod 24 extends along the first direction X to be flush with the end of the nail pulling mechanism 1. The end of the nail pulling mechanism 1 refers to the end of the clamping jaw 11. That is, along the direction perpendicular to the mounting plate 4, the end of the push rod 24 is flush with the end of the clamping jaw 11 in the nail pulling mechanism 1. The direction perpendicular to the mounting plate 4 is as shown in FIG. Figures 1 to 3As shown in the third direction Z. Thus, the clamping jaw 11 of the nail pulling mechanism 1 and the push rod 24 can contact the surface of the battery cover at the same time, and since the push rod 24 and the nail pulling mechanism 1 are both fixedly mounted on the mounting plate 4, the push plate and the clamping jaw 11 can move synchronously.

[0057] In summary, in another nail pulling device provided by the embodiment of the utility model, the nail pulling mechanism 1 and the compensation mechanism 2 are both mounted and fixed on the mounting plate 4, the compensation mechanism 2 includes a floating member 21, a seat 22, an elastic member 23 and a push rod 24, the first driving mechanism 3 is fixedly connected to the seat 22, the floating member 21 is fixedly connected to the nail pulling mechanism 1, and the elastic member 23 is connected between the floating member 21 and the seat 22, so that the floating member 21 can move relative to the seat 22 along the first direction X, thereby providing the nail pulling mechanism 1 with movement compensation in the first direction X. The push rod 24 is mounted on the end of the mounting plate 4 along the first direction X, and along the third direction Z, the end of the push rod 24 away from the floating member 21 is flush with the end of the clamping jaw 11 in the nail pulling mechanism 1, so that when the nail pulling device performs a nail pulling operation on the battery cell, the clamping jaw 11 of the nail pulling mechanism 1 and the push rod 24 can contact the surface of the battery cover at the same time. In combination with the above-mentioned implementation scenario, the distance between the protruding part of the battery cell cover and the clamping jaw 11 of the nail pulling mechanism 1 is 48mm. When the first driving mechanism 3 drives the clamping jaw 11 of the nail pulling mechanism 1 to extend 48mm along the first direction X, the push rod 24 will contact the surface of the battery cell cover. Then, when the first driving mechanism 3 continues to drive, the push rod 24 is squeezed by the surface of the battery cell cover, and the squeezing force is transmitted to the floating part 21 through the mounting plate 4. The floating part 21 compresses the elastic part 23, and the elastic part 23 is compressed by 2mm. At this time, the first driving mechanism 3 has ended the driving stroke, and the clamping jaw 11 of the nail pulling mechanism 1 can also just abut against the surface of the battery cell cover, so that the clamping jaw 11 of the nail pulling mechanism 1 can smoothly clamp the rubber nails on the cover and pull them out.

[0058] Optionally, refer to Figure 1 and Figure 3 The nail pulling mechanism 1 includes: a clamping jaw 11, which is arranged along the first direction, and the push rod 24 extends along the first direction X to be flush with the end of the clamping jaw 11; a second driving mechanism 12, which is installed on the mounting plate 4, and the second driving mechanism 12 is connected to the clamping jaw 11, and is used to drive the clamping jaw 11 to clamp or loosen, so that the clamping jaw 11 can pull out the rubber nail.

[0059] Specifically, the clamping jaw 11 is arranged along the first direction X, and the clamping jaw 11 is composed of two claws. The two claws are close to each other to achieve clamping of the clamping jaw 11, and the two claws are far away from each other to achieve loosening of the clamping jaw 11. The second driving mechanism 12 is fixed on the mounting plate 4, and can be detachably connected to the mounting plate 4 through fasteners. The second driving mechanism 12 is connected to the clamping jaw 11, such as Figure 3As shown, the clamping jaw 11 is connected to the end of the second driving mechanism 12, and the second driving mechanism 12 is used to drive the clamping jaw 11 to clamp or loosen. The clamping jaw 11 clamps when it contacts the glue nail on the battery cell cover plate, and loosens when the clamping jaw 11 moves away from the battery cell cover plate and moves to the target position, wherein the target position can be set according to actual needs, and this embodiment of the utility model is not limited to this. The second driving mechanism 12 can be a driving cylinder, a driving motor, etc., and the embodiment of the utility model is not limited to the specific type of the second driving mechanism 12. In some embodiments, the two claws of the clamping jaw 11 can be set along the third direction Z to directly clamp or loosen the glue nail. The clamping jaw 11 in this embodiment may cause the glue nail to fall off during the process of clamping the glue nail and moving in the direction away from the battery cell cover plate. In other embodiments, the two claws of the clamp 11 can be arranged along the second direction Y. In this embodiment, the clamp 11 is not likely to drop the glue nail when it moves along the direction away from the battery cell cover plate while clamping the glue nail. However, at this time, the second driving mechanism 12 also needs to drive the clamp 11 to rotate along the third direction Z so that the glue nail clamped by the clamp 11 can fall off smoothly.

[0060] Optionally, refer to Figure 1 and Figure 2 The nail pulling device also includes: a scraper plate 51, which is arranged on the side of the clamping jaw 11 away from the mounting plate 4 in a direction perpendicular to the mounting plate 4; a third driving mechanism 52, which is connected to the scraper plate 51 and is used to drive the scraper plate 51 to move in a direction perpendicular to the mounting plate 4, so that the scraper plate 51 scrapes off the rubber nails clamped by the clamping jaw 11.

[0061] Specifically, the scraper plate 51 is arranged on the side of the clamping jaw 11 away from the mounting plate 4 in a direction perpendicular to the mounting plate 4. The scraper plate 51 is a rectangular, square or other flat plate structure of any shape. The third driving mechanism 52 is connected to the scraper plate 51. The third driving mechanism 52 is installed on the frame 10 of the nail pulling device. The third driving mechanism 52 can drive the scraper plate 51 to move in a direction perpendicular to the mounting plate 4, that is, in the third direction Z. During the movement, the scraper plate 51 can pass between the two claws of the clamping jaw 11, thereby scraping off the glue nails clamped by the clamping jaw 11 to prevent the glue nails from sticking to the clamping jaw 11. The third driving mechanism 52 can be a driving cylinder, a driving motor, etc. The specific type of the third driving mechanism 52 is not limited in the embodiment of the utility model. It should be noted that in order to ensure that the scraper plate 51 can smoothly pass between the two claws of the clamping jaw 11, it is necessary to ensure the verticality and alignment requirements of the scraper plate 51 and the clamping jaw 11 when designing the nail pulling device.

[0062] Optionally, refer to Figure 2The nail pulling device also includes: a guide rail 6, which is arranged along the first direction, and the mounting plate 4 is slidably connected to the guide rail 6.

[0063] Specifically, the guide rail 6 is arranged on the guide rail 6 seat, and the guide rail 6 is arranged along the first direction X, and the mounting plate 4 is slidably connected to the guide rail 6. Since the second driving mechanism 12 of the nail pulling mechanism 1 is installed and fixed on the mounting plate 4, when the first driving mechanism 3 drives the nail pulling mechanism 1 to move along the first direction X through the compensation mechanism 2, the mounting plate 4 will move along the first direction X synchronously, and the mounting plate 4 is slidably connected to the guide rail 6 arranged along the first direction X, so as to limit the movement direction of the mounting plate 4 and avoid the displacement of the mounting plate 4 during the movement, which causes the clamping claw 11 of the nail pulling mechanism 1 to be unable to accurately clamp the glue nails on the battery cell cover.

[0064] Optionally, refer to Figures 1 to 3 The nail pulling device further includes: a first detection mechanism 7, which is used to detect the nail pulling state of the nail pulling mechanism 1.

[0065] Specifically, a first mounting plate 71 for mounting the first detection mechanism 7 is provided on the frame 10 of the nail pulling device. The first detection mechanism 7 is mounted on the first mounting plate 71. The first detection mechanism 7 can detect the nail pulling state of the nail pulling mechanism 1, which includes the state of the clamping jaw 11 clamping the plastic nail and the state of the scraper plate 51 scraping the plastic nail clamped by the clamping jaw 11. If the first detection mechanism 7 detects that the clamping jaw 11 fails to clamp the plastic nail, it can feedback to the control system, and the control system controls the first drive mechanism 3 and the second drive mechanism 12 to operate, so that the clamping jaw 11 performs a secondary nail pulling operation; if the first detection mechanism 7 detects that the scraper plate 51 fails to scrape the plastic nail clamped by the clamping jaw 11, it can feedback to the control system, and the control system controls the third drive mechanism 52 to operate, so that the scraper plate 51 performs a secondary scraping operation. The types of the first detection mechanism 7 include but are not limited to laser sensors, infrared sensors, photoelectric sensors, etc., and the specific types are not limited in the embodiments of the utility model.

[0066] Optionally, refer to Figure 1 and Figure 2 The nail pulling device also includes: a second detection mechanism 8, which is used to detect the state of the glue nails on the battery cell.

[0067] Specifically, a second mounting plate 81 for mounting the second detection mechanism 8 is provided on the frame 10 of the nail pulling device. The second detection mechanism 8 is mounted on the second mounting plate 81. The second detection mechanism 8 can detect the state of the glue nails on the battery cell cover plate, and the glue nail state includes the state of successful removal of the glue nails, unsuccessful removal of the glue nails, broken glue nails, and the height of the glue nails. The second detection mechanism 8 can feedback the height of the glue nails on the battery cell cover plate to the control system so that the nail pulling device can accurately position the nail pulling mechanism 1 to the height of the glue nails on the battery cell cover plate. If the second detection mechanism 8 detects that the glue nails are not successfully removed or the glue nails are broken, it can feedback to the control system, and the control system controls the nail pulling device to perform a secondary nail pulling operation. The second detection mechanism 8 in the embodiment of the utility model adopts a multi-point laser sensor, which has precise detection accuracy, and has higher information feedback capability and information accuracy. The setting of the second detection mechanism 8 can save the manual review stage in the prior art, reduce the time consumed by the review, and control the labor cost.

[0068] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nail pulling device, characterized in that: The nail pulling device comprises: A nail pulling mechanism, which is used to pull out the glue nails of the battery cell; A compensation mechanism, the compensation mechanism is connected to the nail pulling mechanism; A first driving mechanism, the first driving mechanism is connected to the compensation mechanism, and is used to drive the nail pulling mechanism to move along a first direction through the compensation mechanism; wherein the compensation mechanism is used to provide movement compensation for the nail pulling mechanism in the first direction.

2. The nail removal device according to claim 1, characterized in that: The compensation mechanism includes: A floating member, wherein the floating member is fixedly connected to the nail pulling mechanism; A seat body, wherein the seat body is fixedly connected to the first driving mechanism and movably connected to the floating member, and the floating member can move relative to the seat body along the first direction.

3. The nail removal device according to claim 2, characterized in that: The compensation mechanism also includes: An elastic member is disposed between the floating member and the seat body, and is fixedly connected to the floating member and the seat body respectively.

4. The nail removal device according to claim 3, characterized in that: The nail pulling device also includes: The mounting plate is provided with the nail pulling mechanism and the floating member mounted on the mounting plate, wherein the nail pulling mechanism is mounted on a side of the floating member away from the first driving mechanism and extends out of an end of the mounting plate along the first direction.

5. The nail removal device according to claim 4, characterized in that: The compensation mechanism also includes: A push rod is mounted on a side of the mounting plate away from the first driving mechanism, and the push rod extends along the first direction to be flush with an end of the nail pulling mechanism.

6. The nail removal device according to claim 5, characterized in that: The nail pulling mechanism comprises: A clamping jaw, wherein the clamping jaw is arranged along the first direction, and the push rod extends along the first direction to be flush with the end of the clamping jaw; The second driving mechanism is installed on the mounting plate, and the second driving mechanism is connected to the clamping jaw and is used to drive the clamping jaw to clamp or loosen so that the clamping jaw can pull out the glue nail.

7. The nail removal device according to claim 6, characterized in that: The nail pulling device also includes: A scraper plate, the scraper plate is arranged on a side of the clamping claw away from the mounting plate in a direction perpendicular to the mounting plate; The third driving mechanism is connected to the scraper plate and is used to drive the scraper plate to move in a direction perpendicular to the mounting plate so that the scraper plate can scrape off the glue nails clamped by the clamping claws.

8. The nail removal device according to claim 4, characterized in that: The nail pulling device also includes: A guide rail is arranged along the first direction, and the mounting plate is slidably connected to the guide rail.

9. The nail removal device according to claim 1, characterized in that: The nail pulling device also includes: A first detection mechanism is used to detect the nail pulling state of the nail pulling mechanism.

10. The nail removal device according to claim 1, characterized in that: The nail pulling device also includes: The second detection mechanism is used to detect the state of the glue nails on the battery cell.

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