Battery cell protection cover taking, placing and replacing device

Abstract

The utility model provides a battery cell protective cover taking, placing and replacing device, which belongs to the technical field of battery cell processing equipment and comprises a battery cell transplanting jig, a protective cover taking and placing assembly is arranged on one side of the battery cell transplanting jig, a protective cover replacing assembly is further arranged on one side of the battery cell transplanting jig, and a protective cover temporary storage platform is arranged on one side of the protective cover replacing assembly. According to the utility model, the battery cell transplanting jig can be directly controlled to move to the position of the protective cover replacing assembly in a non-stop state, and the protective cover replacing assembly is utilized to take down a protective cover to be eliminated from a battery cell and take out a new protective cover from the protective cover caching platform; therefore, the time consumption in the circulation process of the battery cell transplanting jig is reduced, and the downtime is reduced, so that the production efficiency of the battery cell is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery core processing equipment, and in particular relates to a device for taking, placing and replacing a battery core protection cover. Background Art

[0002] As a new generation of green high-energy batteries with excellent performance, metal square case lithium-ion batteries are widely used in many fields such as new energy vehicles, mobile phones, laptops, tablet computers, etc. due to their high voltage, high capacity, low consumption, no memory effect, no pollution, small size, low internal resistance, low self-discharge, and high cycle times.

[0003] At present, in the production process of metal square shell lithium-ion batteries, the top cover welding machine is generally set in the middle of the automotive power battery cell assembly section. Its function is to perform laser full welding on the gap between the top cover and the shell of the battery cell after the pre-welding into the shell, so as to achieve the purpose of isolating the inside of the battery from the outside air. Moreover, during this laser full welding process, due to the internal structure of the battery, the welding slag dust generated cannot directly contact the battery. During this laser full welding process, a protective cover is required to isolate the battery cell, that is, it is necessary to use an upper protective cover module to correctly place the protective cover on the battery top cover to be laser welded, and wrap the pole, explosion-proof valve and injection hole of the battery cell through the protective cover, so as to prevent the welding slag dust generated during welding from scalding the pole, explosion-proof valve and splashing into the battery.

[0004] At present, the structure of the battery cell protection cover removal and placement assembly used in the existing upper protection cover module is relatively simple. Generally, only a protection cover loading assembly and a protection cover unloading assembly are arranged on the entire top cover welding machine. Therefore, when the protection cover reaches the prescribed number of uses, it is often necessary to shut down the entire machine to replace the protection cover, thereby consuming and wasting the working time of the entire top cover welding machine and directly affecting the production efficiency of the entire equipment. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a cell protective cover taking and replacing device which can realize the automatic replacement of the NG protective cover after welding without stopping the machine, so as to reduce the time consumption in the protective cover replacement operation process, thereby greatly improving the production efficiency.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a battery cell protective cover picking and placing device, which includes a battery cell transplanting jig, a protective cover picking and placing assembly is provided on one side of the battery cell transplanting jig, a protective cover replacement assembly is also provided on one side of the battery cell transplanting jig, and a protective cover cache platform is provided on one side of the protective cover replacement assembly. In this way, since the utility model additionally provides a protective cover replacement assembly and a protective cover cache platform on one side of the protective cover picking and placing assembly, when the protective cover meets the replacement requirements, the utility model can directly control the battery cell transplanting jig to move to the position of the protective cover replacement assembly without stopping the machine, and use the protective cover replacement assembly to remove the protective cover to be eliminated from the battery cell, and remove the new protective cover from the protective cover cache platform, thereby reducing the time consumption in the circulation process of the battery cell transplanting jig and reducing the downtime, thereby greatly improving the battery cell production efficiency.

[0007] Furthermore, the protective cover picking and placing assembly includes a picking and placing bracket, a horizontal bracket 1 is horizontally slidably installed on one side of the picking and placing bracket, a horizontal bracket 1 is transmission-connected to one side of the horizontal bracket 1 for driving the horizontal bracket 1 to move horizontally, and a lifting bracket 1 is vertically slidably installed on the other side; a vertical driving mechanism 1 is transmission-connected to one side of the lifting bracket 1 for driving the lifting bracket 1 to move up and down, and at least one protective cover gripper is connected to the other side, and the protective cover gripper at that location is moved to a corresponding position through the cooperation of the vertical driving mechanism 1 and the horizontal driving mechanism 1.

[0008] Furthermore, the protective cover replacement assembly includes a replacement bracket, one side of the replacement bracket is horizontally slidably installed with a horizontal bracket 2, one side of the horizontal bracket 2 is transmission-connected with a horizontal drive mechanism 2 for driving the horizontal bracket 2 to move horizontally, and the other side is vertically slidably installed with a lifting bracket 2; one side of the lifting bracket 2 is transmission-connected with a vertical drive mechanism 2 for driving the lifting bracket 2 to move up and down, and the other side is connected with at least one protective cover gripper, and the protective cover gripper at that location is moved to a corresponding position through the cooperation of the vertical drive mechanism 2 and the horizontal drive mechanism 2.

[0009] Furthermore, the protective cover gripper includes an upper connecting frame, the upper end of the upper connecting frame is connected to the lifting bracket one or the lifting bracket two through a vertical spring flexible connection mechanism, and one side of the upper connecting frame is provided with a protective cover picking and releasing cylinder and a lower connecting plate in sequence from top to bottom, and the output end of the protective cover picking and releasing cylinder is provided with a protective cover picking and placing claw, and the protective cover picking and placing claw passes through the lower connecting plate, and the lower end of the lower connecting plate is provided with a material stripping floating mechanism. In this way, when the protective cover is placed on the top cover surface of the battery cell, on the one hand, since the utility model is provided with a vertical spring flexible connection mechanism, it can compress the protective cover taking and releasing cylinder and its connected lower connecting plate and other components upward by 2-3mm when the protective cover contacts the top cover surface of the battery cell, thereby ensuring that each protective cover is placed in a suitable position on the top cover of the battery cell, thereby ensuring that the welding of each battery cell is protected; on the other hand, the utility model can use a stripping floating mechanism, when the protective cover taking and releasing cylinder is about to place the protective cover on the top cover surface of the battery cell, the elastic force of the floating spring can prevent the protective cover from sticking to the lower connecting plate after the protective cover taking and releasing cylinder is released, thereby improving work efficiency.

[0010] Furthermore, the stripping floating mechanism includes a groove arranged on the bottom surface of the lower connecting plate, in which a floating spring and a stripping block are arranged in sequence from top to bottom, one end of the guide bolt passes through the stripping block, the floating spring and the lower connecting plate in sequence and is threadedly connected to the nut, and when the floating spring is in a free state, the stripping block extends out of the lower connecting plate; when the floating spring is in a compressed state, the lower end surface of the stripping block can be higher than the lower end surface of the lower connecting plate.

[0011] Furthermore, the protective cover cache platform includes a cache bracket, and a protective cover cache rack and a protective cover recovery box are arranged on the upper end of the cache bracket. The protective cover cache rack temporarily stores multiple spare protective covers, and the protective cover recovery box is used to place discarded protective covers.

[0012] Furthermore, the protective cover cache platform also includes a cache track, and the lower end of the cache bracket is horizontally slidably installed on the cache track, and when the cache bracket slides on the cache track, the cache bracket can be located below the protective cover gripper of the protective cover replacement assembly.

[0013] Furthermore, the battery cell transplanting jig includes a battery cell transplanting track, on the upper end of which a battery cell jig body is slidably mounted, and when the battery cell jig body slides on the battery cell transplanting track, the battery cell jig body can be located below the protective cover gripper of the protective cover removal and placement assembly and below the protective cover gripper of the protective cover replacement assembly.

[0014] Furthermore, the battery cell jig body includes a jig frame, the bottom of the jig frame is slidably mounted on the battery cell transfer track, a battery cell lifting mechanism is arranged in the middle of the jig frame, a mounting plate is installed at the power output end of the battery cell lifting mechanism, a Y-axis slide is horizontally slidably mounted above the mounting plate through a Y-axis horizontal guide rail, an X-axis slide is horizontally slidably mounted above the Y-axis slide rail through an X-axis horizontal guide rail, a battery cell fixing bottom plate is fixedly mounted on the X-axis slide plate, and a Z-axis floating placement platform is installed above the battery cell fixing bottom plate through a vertically arranged spring. In this way, since the utility model is provided with a Z-axis direction flexible structure at the bottom placement surface of the battery cell on the battery cell jig body, even if the upper surface of the battery cell is not level during the process of placing the battery cell into the battery cell jig body, in the process of applying the upper positioning assembly of the top cover welding machine to press down the upper surface of the battery cell, the utility model can also protect the battery cell from being crushed by the vertically arranged spring, thereby reducing the failure rate of the battery cell.

[0015] Furthermore, the battery cell fixture body also includes a battery cell long side limiting mechanism and a battery cell short side limiting mechanism arranged on the outside of the Z-axis floating placement platform, the battery cell short side limiting mechanism includes a short side fixed reference block and a short side clamping cylinder which are relatively arranged, the short side fixed reference block and the cylinder body of the short side clamping cylinder are fixedly installed on the fixture frame, and a short side movable positioning block is arranged at the output end of the short side clamping cylinder, the short side movable positioning block is arranged relatively to the short side fixed reference block, and the short side movable positioning block is relatively fixedly connected to the X-axis slide board; the battery cell long side limiting mechanism The positioning mechanism includes a long side fixed reference follower block and a long side clamping cylinder. The cylinder body of the long side clamping cylinder and the long side fixed reference follower block are respectively fixedly mounted on the long side follower slider on the corresponding side. The output end of the long side clamping cylinder is provided with a long side movable positioning block. The long and short side movable positioning blocks are arranged relative to the long side fixed reference follower block. The long side follower slider is horizontally slidably mounted on the fixture frame along the length direction of the long side of the battery cell. The long side follower slider, the cylinder body of the long side clamping cylinder, and the long side fixed reference follower block are relatively fixedly connected with the Y-axis slide plate. In this way, when the battery cell long side limiting mechanism and the battery cell short side limiting mechanism are controlled to position the long side and short side of the battery cell, since the utility model is provided with corresponding X-axis direction and Y-axis direction follower structures, the battery cell fixed bottom plate in the utility model can move together with the battery cell during the short side positioning process, thereby ensuring that the battery cell as a whole does not have relative friction, that is, protecting the bottom surface of the battery cell from damage. In addition, the short side movable positioning block, short side fixed reference block, long side follow-up slider, and long side fixed reference follow-up block are all made of red copper, which has the characteristics of fast heat dissipation and non-stick slag. It can limit and guide the battery cells without scalding the battery cells during welding.

[0016] It can be seen from the above technical scheme that the utility model has the following advantages: since the utility model additionally provides a protective cover replacement assembly and a protective cover cache platform on one side of the protective cover picking and placing assembly, when the protective cover meets the replacement requirements, the utility model can directly control the battery cell transplanting jig to move to the position of the protective cover replacement assembly without stopping the machine, and use the protective cover replacement assembly to remove the protective cover to be eliminated from the battery cell, and remove the new protective cover from the protective cover cache platform, thereby reducing the time consumption in the circulation process of the battery cell transplanting jig and reducing the downtime, thereby greatly improving the battery cell production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the battery fixture body in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the protective cover taking and placing assembly in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the protective cover replacement component and the protective cover buffer platform in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the protective cover cache platform in the utility model.

[0023] In the figure: 1. Battery cell transplanting jig; 2. Protective cover pick-up and placement assembly; 3. Protective cover replacement assembly; 4. Protective cover cache platform; 5. Replacement bracket; 6. Horizontal bracket 2; 7. Lifting bracket 2; 8. Protective cover gripper; 9. Cache bracket; 10. Cache track; 11. Protective cover recovery box; 12. Protective cover cache rack; 13. Reflective photoelectric switch; 14. Battery cell short side limit mechanism; 15. XY axis follow-up mechanism; 16. Battery cell lifting mechanism; 17. Battery cell long side limit mechanism; 18. Jig frame; 19. Horizontal bracket 1; 20. Lifting bracket 1; 21. Vertical spring flexible connection mechanism; 22. Upper connecting frame; 23. Protective cover pick-up and placement cylinder; 24. Protective cover pick-up and placement claws; 25. Lower connecting plate; 26. Stripping floating mechanism. DETAILED DESCRIPTION

[0024] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] like Figures 1 to 5 As shown, the utility model provides a battery cell protective cover removal, placement and replacement device, which includes a battery cell transplanting jig 1, one side of the battery cell transplanting jig 1 is sequentially provided with a protective cover removal component 2 and a protective cover replacement component 3, and one side of the protective cover replacement component 3 is provided with a protective cover cache platform 4.

[0026] Among them, Figure 1 , Figure 2 As shown, the battery cell transplanting jig 1 includes a battery cell transplanting track that can be laid on the workbench of the top cover welding machine, and a battery cell jig body is slidably installed on the upper end of the battery cell transplanting track, and when the battery cell jig body slides on the battery cell transplanting track, the battery cell jig body can be located below the protective cover removal and placement assembly 2 and below the protective cover replacement assembly 3.

[0027] Specifically, the battery cell jig body includes a jig frame 18, the bottom of the jig frame 18 is slidably mounted on the battery cell transplanting track, and a battery cell lifting mechanism 16 is arranged in the middle of the jig frame 18, and the battery cell lifting mechanism 16 preferably adopts a lifting cylinder, and a mounting plate is installed at the power output end of the battery cell lifting mechanism 16, and a battery cell fixed bottom plate is installed above the mounting plate through an XY axis follower mechanism 15. The XY axis follower mechanism 15 includes a Y-axis slide plate horizontally slidably mounted on the upper end of the mounting plate through a Y-axis horizontal guide rail, an X-axis slide plate is horizontally slidably mounted above the Y-axis slide plate through an X-axis horizontal guide rail, a battery cell fixed bottom plate is fixedly mounted on the X-axis slide plate, and a Z-axis floating placement platform is installed above the battery cell fixed bottom plate through a vertically arranged spring. In this way, since the utility model is provided with a Z-axis direction flexible structure at the bottom placement surface of the battery cell on the battery cell fixture body, even if the upper surface of the battery cell is not level during the process of placing the battery cell into the battery cell fixture body, during the process of using the upper positioning component of the top cover welding machine to press down the upper surface of the battery cell, the utility model can also protect the battery cell from being crushed by the vertically arranged spring, thereby reducing the battery cell failure rate.

[0028] In addition, the battery cell fixture body also includes a battery cell long side limiting mechanism 17 and a battery cell short side limiting mechanism 14 which are arranged on the outside of the Z-axis floating placement platform. The battery cell long side limiting mechanism 17 and the battery cell short side limiting mechanism 14 are used to limit the long side and short side of the battery cell respectively, and they both preferably adopt a cylinder drive structure. Specifically, the battery cell short side limiting mechanism 14 includes a relatively arranged short side fixed reference block and a short side clamping cylinder, the cylinder bodies of the short side fixed reference block and the short side clamping cylinder are fixedly mounted on the fixture frame 18, and a short side movable positioning block is arranged at the output end of the short side clamping cylinder, and the short side movable positioning block is arranged relatively to the short side fixed reference block, and can be close to or away from each other; the short side movable positioning block is relatively fixedly connected to the X-axis slide; the battery cell long side limiting mechanism 17 includes a long side fixed reference follower block and a long side opening The clamping cylinder, the cylinder body of the long side clamping cylinder and the long side fixed reference follower block are respectively fixedly mounted on the long side follower slider on the corresponding side, and the long side movable positioning block is arranged at the output end of the long side clamping cylinder, and the long and short side movable positioning blocks are arranged relatively to the long side fixed reference follower block, and can be close to or away from each other; the long side follower slider is horizontally slidably mounted on the jig frame 18 along the length direction of the long side of the battery cell, and the long side follower slider, the cylinder body of the long side clamping cylinder, the long side fixed reference follower block and the Y-axis slide plate are relatively fixedly connected.

[0029] In this way, when controlling the long side limiting mechanism 17 and the short side limiting mechanism 14 of the battery cell to position the long side and the short side of the battery cell, since the utility model is provided with corresponding X-axis direction and Y-axis direction follower structures, the battery cell fixed bottom plate in the utility model can move together with the battery cell during the short side positioning process, thereby ensuring that the battery cell as a whole does not have relative friction, that is, protecting the bottom surface of the battery cell from damage. In addition, the short side movable positioning block, the short side fixed reference block, the long side follower slider, and the long side fixed reference follower block are all made of copper, which has the characteristics of fast heat dissipation and non-sticky slag, and can limit and guide the battery cell without scalding the battery cell during the welding process.

[0030] like Figure 1 , Figure 3 As shown, the protective cover picking and placing assembly 2 includes a picking and placing bracket, a horizontal bracket 19 is horizontally slidably installed on one side of the picking and placing bracket, one side of the horizontal bracket 19 is transmission-connected with a horizontal driving mechanism 1 for driving the horizontal bracket 19 to move horizontally, and a lifting bracket 20 is vertically slidably installed on the other side, one side of the lifting bracket 20 is transmission-connected with a vertical driving mechanism 1 for driving the lifting bracket 20 to slide up and down, and the other side is connected with one or two protective cover grippers 8 via a vertical spring flexible connection mechanism 21.

[0031] The protective cover gripper 8 includes an upper connecting frame 22, the upper end of the upper connecting frame 22 is connected to the lifting bracket 20 through a vertical spring flexible connecting mechanism 21 (which is a common flexible connecting structure on the market, and can directly use a vertical spring to connect the upper connecting frame 22 and the lifting bracket 20 together). One side of the upper connecting frame 22 is provided with a protective cover picking and releasing cylinder 23 and a lower connecting plate 25 in sequence from top to bottom, and the output end of the protective cover picking and releasing cylinder 23 is provided with a protective cover picking and releasing claw 24, and the protective cover picking and releasing claw 24 penetrates the lower connecting plate 25 and then grabs the protective cover, and the lower end of the lower connecting plate 25 is provided with a material stripping floating mechanism 26.

[0032] The stripping floating mechanism 26 includes a groove arranged on the bottom surface of the lower connecting plate 25, in which a floating spring and a stripping block are arranged in sequence from top to bottom, and one end of the guide bolt passes through the stripping block, the floating spring, and the lower connecting plate 25 in sequence and is threadedly connected with a nut, and when the floating spring is in a free state, the stripping block extends out of the lower connecting plate 25; when the floating spring is in a compressed state, the lower end surface of the stripping block can be higher than the lower end surface of the lower connecting plate 25. In this way, when the protective cover is placed on the top cover surface of the battery cell, on the one hand, since the utility model is provided with a vertical spring flexible connection mechanism 21, it can compress the protective cover taking and releasing cylinder 23 and the lower connecting plate 25 connected thereto and other components upward by 2-3mm when the protective cover contacts the top cover surface of the battery cell, thereby ensuring that each protective cover is placed in a suitable position on the top cover of the battery cell, thereby ensuring that the welding of each battery cell is protected; on the other hand, the utility model can use a stripping floating mechanism 26 composed of a floating spring, a guide bolt and a stripping block. When the protective cover taking and releasing cylinder 23 is about to place the protective cover on the top cover surface of the battery cell, the elastic force of the floating spring can prevent the protective cover from sticking to the lower connecting plate 25 after the protective cover taking and releasing cylinder 23 is released, thereby improving work efficiency.

[0033] like Figure 1 , Figure 4 As shown, the protective cover replacement component 3 includes a replacement bracket 5, a horizontal bracket 2 6 is horizontally slidably installed on one side of the replacement bracket 5, a horizontal drive mechanism 2 is transmission-connected on one side of the horizontal bracket 2 6 for driving the horizontal bracket 2 6 to move horizontally, and a lifting bracket 2 7 is vertically slidably installed on the other side; one side of the lifting bracket 2 7 is transmission-connected on one side of the lifting bracket 2 7 for driving the lifting bracket 2 7 to move up and down, and at least one protective cover gripper 8 is connected on the other side, the structure of the protective cover gripper 8 of the protective cover replacement component 3 is the same as the structure of the protective cover gripper 8 of the protective cover picking and placing component 2, and the protective cover gripper 8 at that location can be moved to the corresponding position through the cooperation of the vertical drive mechanism 2 and the horizontal drive mechanism 2.

[0034] like Figure 4 , Figure 5As shown, the protective cover cache platform 4 includes a cache track 10, and a cache bracket 9 is horizontally slidably installed on the upper end of the cache track 10. A protective cover cache rack 12 and a protective cover recovery box 11 are provided on the upper end of the cache bracket 9. The protective cover cache rack 12 temporarily stores multiple spare protective covers, and the protective cover recovery box 11 is used to place the discarded protective covers. At the same time, as a preferred embodiment, the utility model also provides a reflective photoelectric switch 13 on one side of the protective cover cache rack 12 on the cache bracket 9, and the light emitted by the reflective photoelectric switch 13 is emitted toward the corresponding protective cover cache rack 12, so that the utility model can judge whether there are spare protective covers placed on the protective cover cache rack 12 through the reflective photoelectric switch 13.

[0035] Based on this, since the utility model additionally provides a protective cover replacement component 3 and a protective cover cache platform 4 on one side of the protective cover placement component 2, when the protective cover meets the replacement requirements, the utility model can directly control the battery cell transplanting jig 1 to move to the position of the protective cover replacement component 3 without stopping the machine, and use the protective cover replacement component 3 to remove the protective cover to be eliminated from the battery cell, and take out the new protective cover from the protective cover cache platform 4, thereby reducing the time consumption of the battery cell transplanting jig 1 during the circulation process, and reducing the downtime, thereby greatly improving the battery cell production efficiency.

[0036] In addition, as a preference, the utility model can also configure a pair of magnetic switches in each cylinder used in the entire device, and use the magnetic switches to monitor the status of the corresponding cylinders, so that in the subsequent working process of the entire top cover welding machine, in conjunction with the control program of the top cover welding machine, it can feed back the monitored situation to the equipment automatic operation program to ensure the real-time monitoring of the operating status of the mechanism. Once an abnormality is found, the equipment alarm program can be triggered in time, and the equipment emergency stop program can be triggered synchronously to stop all existing actions to ensure that the losses caused by unknown situations are controlled in time. After the program obtains the position feedback of the magnetic switch, it also serves as the basis and condition for its next operation to avoid confusion in the mechanism's action, resulting in a collision or damage to the battery.

[0037] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery cell protective cover removal and replacement device, comprising a battery cell transplanting jig, one side of which is provided with a protective cover removal and replacement component; characterized in that: A protective cover replacement assembly is also provided on one side of the battery cell transplanting jig, and a protective cover cache platform is provided on one side of the protective cover replacement assembly; the protective cover picking and placing assembly includes a picking and placing bracket, a horizontal bracket 1 is horizontally slidably installed on one side of the picking and placing bracket, a horizontal driving mechanism 1 for driving the horizontal bracket 1 to move horizontally is transmission-connected on one side of the horizontal bracket 1, and a lifting bracket 1 is vertically slidably installed on the other side; a vertical driving mechanism 1 for driving the lifting bracket 1 to move up and down is transmission-connected on one side of the lifting bracket 1, and at least one protective cover gripper is connected on the other side; the protective cover replacement assembly includes a replacement bracket, a horizontal bracket 2 is horizontally slidably installed on one side of the replacement bracket, a horizontal driving mechanism 2 for driving the horizontal bracket 2 to move horizontally is transmission-connected on one side of the horizontal bracket 2, and a lifting bracket 2 is vertically slidably installed on the other side; a vertical driving mechanism 2 for driving the lifting bracket 2 to move up and down is transmission-connected on one side of the lifting bracket 2, and at least one protective cover gripper is connected on the other side.

2. The battery cell protective cover removal and replacement device according to claim 1, characterized in that: The protective cover gripper includes an upper connecting frame, the upper end of which is connected to the lifting bracket one or the lifting bracket two through a vertical spring flexible connecting mechanism, one side of the upper connecting frame is provided with a protective cover picking and releasing cylinder and a lower connecting plate in sequence from top to bottom, the output end of the protective cover picking and releasing cylinder is provided with a protective cover picking and placing claw, the protective cover picking and placing claw passes through the lower connecting plate, and the lower end of the lower connecting plate is provided with a material stripping floating mechanism.

3. The battery cell protective cover removal and replacement device according to claim 2, characterized in that: The stripping floating mechanism includes a groove arranged on the bottom surface of the lower connecting plate, in which a floating spring and a stripping block are arranged in sequence from top to bottom. One end of the guide bolt passes through the stripping block, the floating spring, and the lower connecting plate in sequence and is threadedly connected with a nut.

4. The battery cell protective cover removal and replacement device according to any one of claims 1 to 3, characterized in that: The protective cover caching platform comprises a caching bracket, and a protective cover caching rack and a protective cover recovery box are arranged on the upper end of the caching bracket.

5. The battery cell protective cover removal and replacement device according to claim 4, characterized in that: The protective cover cache platform also includes a cache track, and the lower end of the cache bracket is horizontally slidably installed on the cache track.

6. The battery cell protective cover removal and replacement device according to any one of claims 1 to 3, characterized in that: The battery cell transplanting jig comprises a battery cell transplanting track, and a battery cell jig body is slidably mounted on the upper end of the battery cell transplanting track.

7. The battery cell protective cover removal and replacement device according to claim 6, characterized in that: The battery cell jig body includes a jig frame, the bottom of the jig frame is slidably installed on the battery cell transplanting track, a battery cell lifting mechanism is arranged in the middle of the jig frame, a mounting plate is installed at the power output end of the battery cell lifting mechanism, a Y-axis slide plate is horizontally slidably installed above the mounting plate through a Y-axis horizontal guide rail, an X-axis slide plate is horizontally slidably installed above the Y-axis slide plate through an X-axis horizontal guide rail, a battery cell fixing bottom plate is fixedly installed on the X-axis slide plate, and a Z-axis floating placement platform is installed above the battery cell fixing bottom plate through a vertically arranged spring.

8. The battery cell protective cover removal and replacement device according to claim 7, characterized in that: The battery cell fixture body also includes a battery cell long side limiting mechanism and a battery cell short side limiting mechanism arranged on the outside of the Z-axis floating placement platform. The battery cell short side limiting mechanism includes a relatively arranged short side fixed reference block and a short side clamping cylinder. The short side fixed reference block and the cylinder body of the short side clamping cylinder are fixedly installed on the fixture frame. The output end of the short side clamping cylinder is provided with a short side movable positioning block. The short side movable positioning block is arranged relatively to the short side fixed reference block. The short side movable positioning block is relatively fixedly connected to the X-axis slide plate. The battery cell long side limiting mechanism It includes a long side fixed reference follower block and a long side clamping cylinder. The cylinder body of the long side clamping cylinder and the long side fixed reference follower block are respectively fixedly installed on the long side follower slider on the corresponding side. The output end of the long side clamping cylinder is provided with a long side movable positioning block. The long and short side movable positioning blocks are arranged opposite to the long side fixed reference follower block. The long side follower slider is horizontally slidably installed on the fixture frame along the length direction of the long side of the battery cell. The long side follower slider, the cylinder body of the long side clamping cylinder, the long side fixed reference follower block and the Y-axis slide plate are relatively fixedly connected.

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