Nail pulling device

Abstract

This application relates to a nail removal device, belonging to the field of battery manufacturing technology. The nail removal device includes: a restraint tray; and a nail removal mechanism, including a lifting drive mechanism and a nail removal mechanism. The nail removal mechanism includes a first gripper assembly and a second gripper assembly. The first gripper assembly includes multiple first grippers, and the second gripper assembly includes multiple second grippers. The multiple first grippers move under the drive of the same drive member, and the multiple second grippers move under the drive of the same drive member. The first grippers and second grippers correspond one-to-one, and the first grippers and their corresponding second grippers move closer to or further away from each other. This nail removal device can automatically remove the sealing nails from battery cells, has a simple structure, and exhibits good nail removal accuracy and efficiency.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and more specifically, to a nail-removing device. Background Technology

[0002] In the manufacturing process of lithium batteries, after the battery cells complete the liquid injection process, they need to be sent to the formation equipment. The cell materials inside the battery are activated by the first charge to form a stable electrode interface. The battery cells are then sorted by capacity based on parameters such as voltage and capacity after formation.

[0003] During the formation process, electrolyte leakage may occur, so it is necessary to remove the temporary sealing pins before sending the electrolyte into the formation equipment. However, current pin removal equipment is not only complex in structure, but also has poor pin removal accuracy and efficiency. Utility Model Content

[0004] Therefore, this application proposes a nail-removing device that can automatically remove the sealing nails of battery cells. It has a simple structure and good nail-removing accuracy and efficiency.

[0005] Some embodiments of the present application describe a nail-removing device for removing sealing nails from battery cells, comprising: a restraint tray disposed at a nail-removing station for fixing multiple battery cells; and a nail-removing device including a lifting drive mechanism and a nail-removing mechanism, wherein the lifting drive mechanism is used to drive the nail-removing mechanism to descend to the nail-removing height, and the nail-removing mechanism includes a first gripper assembly and a second gripper assembly; wherein the first gripper assembly includes a plurality of first grippers spaced apart, the second gripper assembly includes a plurality of second grippers spaced apart, the plurality of first grippers move under the drive of the same drive member, the plurality of second grippers move under the drive of the same drive member, the first gripper and the second gripper correspond one-to-one, and the first gripper and the corresponding second gripper move closer to or further away from each other.

[0006] Optionally, the first gripper assembly includes a first drive member for driving a plurality of first grippers to move synchronously, and the second gripper assembly includes a second drive member for driving a plurality of second grippers to move synchronously, wherein the first drive member and the second drive member drive in opposite directions.

[0007] Optionally, the nail-removing mechanism further includes a lifting plate, a first mounting plate, and a second mounting plate. The actuating end of the lifting drive mechanism is connected to the lifting plate. The first mounting plate and the second mounting plate are arranged side by side and are both slidably mounted on the lifting plate. A plurality of first grippers are disposed on the first mounting plate, and a plurality of second grippers are disposed on the second mounting plate. The first drive member and the second drive member are both fixed to the lifting plate. The actuating end of the first drive member is connected to the first mounting plate, and the actuating end of the second drive member is connected to the second mounting plate.

[0008] Optionally, the nail removal mechanism includes a first mounting plate and a second mounting plate. The first gripper includes a first connecting portion and a first clamping portion. The second gripper includes a second connecting portion and a second clamping portion. The first connecting portion connects the first mounting plate and the first clamping portion. The second connecting portion connects the second mounting plate and the second clamping portion. The first clamping portion and the second clamping portion correspond one-to-one. The first clamping portion and the corresponding second clamping portion are arranged opposite to each other.

[0009] Optionally, the first clamping part and the corresponding second clamping part are respectively provided with rubber layers on their adjacent sides.

[0010] Optionally, the nail removal mechanism further includes a detection component disposed on the first gripper assembly for detecting whether the sealing nail has been removed from the battery cell.

[0011] Optionally, the nail removal mechanism includes a first mounting plate, and the detection component includes: a pressure strip slidably mounted on the first mounting plate; a positioning sensor disposed on the first mounting plate; a sensing element disposed on the pressure strip; and a third driving element disposed on the first mounting plate for driving the pressure strip to descend. If the pressure strip descends to press against the surface of the battery cell, the positioning sensor detects that the sensing element has moved into position and sends a removed signal; if the positioning sensor does not detect that the sensing element has moved into position, it sends a not removed signal.

[0012] Optionally, the nail-removing device further includes a lateral drive mechanism, which drives the nail-removing mechanism to move between the nail-removing station and the unloading station; when the nail-removing mechanism reaches the unloading station, the first gripper and the corresponding second gripper move away from each other.

[0013] Optionally, the nail removal device further includes a collection box, which is disposed at the unloading station, and the collection box is located below the nail removal mechanism when the nail removal mechanism reaches the unloading station.

[0014] Optionally, the restraint tray includes: a partition assembly comprising a plurality of partitions spaced apart, with a placement space for placing individual battery cells formed between two adjacent partitions; a first end plate disposed at one end of the partition assembly; a movable plate slidably disposed at the other end of the partition assembly; a second end plate disposed at the end of the movable plate away from the partition assembly; and a pressing drive mechanism mounted on the second end plate for driving the movable plate closer to the partition assembly to press the plurality of partitions against the first end plate.

[0015] Compared with the prior art, this application has the following advantages:

[0016] The nail-removing device of this application embodiment includes multiple first grippers and multiple second grippers, with each first gripper and second gripper corresponding to the other. The multiple first grippers are driven by the same driving component, and both the multiple second grippers are driven by the same driving component. This allows the first grippers and their corresponding second grippers to move closer or further apart to jointly clamp or release the sealing nail. This nail-removing device can automatically remove the sealing nails from battery cells, and it is not only simple in construction but also has good nail-removing accuracy and efficiency.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first-view structural schematic diagram of the nail-removing device provided in an embodiment of this application;

[0020] Figure 2 This is a second-view structural schematic diagram of the nail-removing device provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the nail-removing device of the nail-removing equipment provided in the embodiments of this application;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the nail-removing mechanism of the nail-removing device provided in the embodiments of this application;

[0024] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0025] Figure 7 A first-view structural schematic diagram of the restraint tray of the nail removal device provided in an embodiment of this application;

[0026] Figure 8 This is a second-view structural schematic diagram of the restraint tray of the nail-removing device provided in an embodiment of this application.

[0027] Icons: 100-Nail removal device; 110-Restraint tray; 111-Partition assembly; 1111-Partition; 1112-Guide rod; 112-First end plate; 113-Modible plate; 114-Second end plate; 115-Pressure drive mechanism; 1151-Screw screw; 1152-Tightening component; 116-Pulling block; 120-Nail removal device; 130-Lifting drive mechanism; 140-Nail removal mechanism; 141-First gripper assembly; 1411-First drive component; 1412-First gripper; 1413-First connecting part; 1414-First clamp Holding part; 1415-First rubber layer; 142-Second gripper assembly; 1421-Second driving component; 1422-Second gripper; 1423-Second connecting part; 1424-Second clamping part; 143-Lifting plate; 144-First mounting plate; 145-Second mounting plate; 146-Detection component; 1461-Pressure strip; 1462-Position sensor; 1463-Sensing component; 1464-Third driving component; 150-Transverse drive mechanism; 151-Transverse plate; 160-Collection box; 200-Battery cell; 210-Cover. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] In some embodiments of this application, the nail-removing device 100 is used to remove sealing nails from the battery cell 200.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the nail removal device 100 includes a restraint tray 110 and a nail removal device 120. The restraint tray 110 is disposed at the nail removal station and is used to fix multiple battery cells 200. The nail removal device 120 includes a lifting drive mechanism 130 and a nail removal mechanism 140. The lifting drive mechanism 130 is used to drive the nail removal mechanism 140 down to the nail removal height. The nail removal mechanism 140 includes a first gripper assembly 141 and a second gripper assembly 142. The first gripper assembly 141 includes multiple first grippers 1412, which are spaced apart. The second gripper assembly 142 includes multiple second grippers 1422, which are spaced apart. The multiple first grippers 1412 move under the drive of the same drive member, and the multiple second grippers 1422 move under the drive of the same drive member. The first grippers 1412 and the second grippers 1422 correspond one-to-one, and the first grippers 1412 and the corresponding second grippers 1422 move closer to or further away from each other.

[0032] Multiple first grippers 1412 are spaced apart along a first direction X, and multiple second grippers 1422 are spaced apart along the first direction X. Each first gripper 1412 and its corresponding second gripper 1422 forms a gripping unit to collectively grip a sealing pin. These gripping units are spaced apart along the first direction X, with each unit corresponding to a sealing pin of a battery cell 200. The first grippers 1412 and second grippers 1422 can move along the first direction X to move closer to or further away from each other; similarly, the first grippers 1412 and second grippers 1422 can move along a second direction Y to move closer to or further away from each other.

[0033] Multiple battery cells 200 are placed at intervals along the first direction X on the restraint tray 110. Each battery cell 200 is provided with a sealing pin and is fixed in a preset pin removal position under the action of the restraint tray 110. The side of the battery cell 200 along the third direction Z is a cover 210. The cover 210 is provided with an electrolyte injection hole. The sealing pin is a temporary rubber pin. After the battery cell 200 is injected with electrolyte, the sealing pin is inserted into the electrolyte injection hole to prevent electrolyte from overflowing during subsequent movement.

[0034] The lifting drive mechanism 130 drives the nail-pulling mechanism 140 to descend to the nail-pulling height along the third direction Z. The nail-pulling mechanism 140 clamps the sealing nail at the nail-pulling height. The lifting drive mechanism 130 can be a common cylinder, electric cylinder, etc., or a linear drive mechanism such as a motor lead screw and nut mechanism.

[0035] The nail removal device 100 of this application embodiment includes a plurality of first grippers 1412 and a plurality of second grippers 1422. The first grippers 1412 and the second grippers 1422 are arranged in a one-to-one correspondence. The plurality of first grippers 1412 and the plurality of second grippers 1422 are driven by the same driving member, which enables the first grippers 1412 and the corresponding second grippers 1422 to move closer or further apart to jointly clamp or release the sealing nail. This nail removal device 100 can automatically remove the sealing nails of the battery cell 200, and not only has a simple structure, but also has good nail removal accuracy and efficiency.

[0036] like Figure 3 and Figure 4 As shown, in some embodiments of this application, the first gripper assembly 141 includes a first drive member 1411, which drives a plurality of first grippers 1412 to move synchronously, and the second gripper assembly 142 includes a second drive member 1421, which drives a plurality of second grippers 1422 to move synchronously, and the driving directions of the first drive member 1411 and the second drive member 1421 are opposite.

[0037] The first driving member 1411 is used to drive multiple first grippers 1412 to move synchronously along the first direction X, and the second driving member 1421 is used to drive multiple second grippers 1422 to move synchronously along the first direction X.

[0038] Both the first driving member 1411 and the second driving member 1421 are cylinders. The first driving member 1411 and the second driving member 1421 extend simultaneously in opposite directions along the first direction X, driving the first gripper 1412 and the corresponding second gripper 1422 to approach each other in the first direction X, so as to jointly clamp a sealing nail.

[0039] With this configuration, the first gripper 1412 and the second gripper 1422 are driven by independent driving components, and the driving directions of the two driving components are opposite, which makes it easy to flexibly set the stroke range of the first gripper 1412 and the second gripper 1422 and improve the nail removal accuracy.

[0040] In other embodiments, the plurality of first grippers 1412 and the plurality of second grippers 1422 may also be driven by the same driving member, for example, by driving the bidirectional gear rack assembly on both sides by the same motor, thereby causing the first grippers 1412 and the second grippers 1422 to move in opposite directions.

[0041] like Figure 3 and Figure 4As shown, in some embodiments of this application, the nail-pulling mechanism 140 further includes a lifting plate 143, a first mounting plate 144, and a second mounting plate 145. The execution end of the lifting drive mechanism 130 is connected to the lifting plate 143. The first mounting plate 144 and the second mounting plate 145 are arranged side by side and are both slidably mounted on the lifting plate 143. A plurality of first grippers 1412 are disposed on the first mounting plate 144, and a plurality of second grippers 1422 are disposed on the second mounting plate 145. The first drive member 1411 and the second drive member 1421 are both fixed to the lifting plate 143. The execution end of the first drive member 1411 is connected to the first mounting plate 144, and the execution end of the second drive member 1421 is connected to the second mounting plate 145.

[0042] The first direction X and the second direction Y are two parallel horizontal directions, and the third direction Z is a vertical direction.

[0043] The thickness direction of the first mounting plate 144 and the second mounting plate 145 is the second direction Y. The first mounting plate 144 and the second mounting plate 145 are arranged side by side along the second direction Y. The first mounting plate 144 and the second mounting plate 145 are slidably mounted on the lifting plate 143 along the first direction X via guide rail assemblies. A plurality of first grippers 1412 are spaced apart along the first direction X on the first mounting plate 144, and a plurality of second grippers 1422 are spaced apart along the first direction X on the second mounting plate 145.

[0044] With this configuration, the first mounting plate 144 can reliably drive the movement of multiple first grippers 1412, and the second mounting plate 145 can reliably drive the movement of multiple second grippers 1422, thereby improving the movement accuracy of the grippers and thus improving the nail removal accuracy.

[0045] like Figure 4 As shown, in some embodiments of this application, the first gripper 1412 includes a first connecting portion 1413 and a first clamping portion 1414, and the second gripper 1422 includes a second connecting portion 1423 and a second clamping portion 1424. The first connecting portion 1413 connects the first mounting plate 144 and the first clamping portion 1414, and the second connecting portion 1423 connects the second mounting plate 145 and the second clamping portion 1424. The first clamping portion 1414 and the second clamping portion 1424 correspond one-to-one, and the first clamping portion 1414 and the corresponding second clamping portion 1424 are arranged opposite to each other.

[0046] The first clamping part 1414 and the corresponding second clamping part 1424 are arranged opposite each other along the first direction X to jointly clamp a sealing nail.

[0047] The first gripper 1412 and the second gripper 1422 switch between a release position and a gripping position. When the first gripper 1412 and the second gripper 1422 are in the release position, the distance between the first gripping part 1414 and the second gripping part 1424 in the first direction X is the largest. When the first gripper 1412 and the second gripper 1422 are in the gripping position, the distance between the first gripping part 1414 and the second gripping part 1424 in the first direction X is the smallest.

[0048] The first connecting portion 1413 extends along the third direction Z. The upper end of the first connecting portion 1413 along the third direction Z is connected to the first mounting plate 144, and the lower end extends to form the first clamping portion 1414. The second connecting portion 1423 is L-shaped. The upper end of the second connecting portion 1423 along the third direction Z is connected to the second mounting plate 145, and the other end extends downward and bends toward the first mounting plate 144, with the end extending to form the second clamping portion 1424.

[0049] By providing the first connecting part 1413 and the second connecting part 1423, the positions of the first clamping part 1414 and the second clamping part 1424 in the second direction Y can be changed, so that the first clamping part 1414 and the corresponding second clamping part 1424 are arranged in pairs in the first direction X to clamp the same sealing nail together.

[0050] In other embodiments, the first connecting part 1413 and the second connecting part 1423 may not be provided. The first clamping part 1414 is directly provided at the lower end of the first mounting plate 144, and the second clamping part 1424 is directly provided at the lower end of the second mounting plate 145. The first clamping part 1414 and the second clamping part 1424 move closer to or further away from each other along the second direction Y.

[0051] like Figure 4 As shown, in some embodiments of this application, the first clamping part 1414 and the corresponding second clamping part 1424 are respectively provided with rubber layers on their adjacent sides.

[0052] The inner side of the first clamping part 1414 has a first rubber layer 1415, and the inner side of the second clamping part 1424 has a second rubber layer. When clamping the sealing nail, the first rubber layer 1415 and the second rubber layer abut against the surface of the sealing nail, which can increase the friction with the sealing nail and increase the success rate of removing the sealing nail.

[0053] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of this application, the nail removal mechanism 140 further includes a detection component 146 disposed on the first gripper assembly 141, for detecting whether the sealing nail has been removed from the battery cell 200.

[0054] By setting up the detection component 146, after the nail removal mechanism 140 removes the sealing nail, it is possible to check whether the sealing nail remains on the surface of the battery cell 200, thereby determining whether the sealing nail has been removed from the battery cell 200, which improves the reliability of the nail removal action.

[0055] like Figure 4 and Figure 6 As shown, in some embodiments of this application, the detection component 146 includes a pressure strip 1461, a positioning sensor 1462, a sensing element 1463, and a third driving element 1464. The pressure strip 1461 is slidably mounted on the first mounting plate 144; the positioning sensor 1462 is disposed on the first mounting plate 144; the sensing element 1463 is disposed on the pressure strip 1461; the third driving element 1464 is disposed on the first mounting plate 144 and is used to drive the pressure strip 1461 to descend. If the pressure strip 1461 can descend to press against the surface of the battery cell 200, the positioning sensor 1462 detects that the sensing element 1463 has moved into place and sends a removed signal; if the positioning sensor 1462 does not detect that the sensing element 1463 has moved into place, it sends a not removed signal.

[0056] A third mounting plate is provided on the first mounting plate 144. The pressure strip 1461 is mounted on the third mounting plate through a straight sleeve extending along the third direction Z. The length direction of the pressure strip 1461 extends along the first direction X. The bottom surface of the pressure strip 1461 is flat. Driven by the third driving member 1464, the pressure strip 1461 descends along the third direction Z until it encounters an obstacle on its bottom side and cannot descend further. When the pressure strip 1461 presses against the cover 210 of the battery cell 200, the sensing member 1463 moves into position and determines that the sealing pins of the battery cell 200 corresponding to the pressure strip 1461 have been completely removed. After the positioning sensor 1462 detects the sensing member 1463, it sends a signal indicating that the pins have been removed. If there are residual sealing nails, the bottom surface of the pressure strip 1461 will not be able to continue descending after it comes into contact with the sealing nail, and the sensing element 1463 will not be able to move into place. It is determined that at least one of the multiple battery cells 200 corresponding to the pressure strip 1461 has not had its sealing nail removed. The positioning sensor 1462 sends a signal indicating that the sealing nail has not been removed, and then manual processing is required.

[0057] like Figure 5 As shown in the example, the restraint tray 110 fixes ten battery cells 200 in the first direction X. The pin removal mechanism 140 is provided with two detection components 146, which are spaced apart along the first direction X. Each pressure bar 1461 detects whether the sealing pins of five battery cells 200 have been removed in the first direction X. This reduces the number of detection components 146 while maintaining high detection accuracy. In other embodiments, the number of battery cells 200 detected by the pressure bar 1461 in the first direction X and the number of detection components 146 can be flexibly adjusted.

[0058] With this configuration, the detection component 146 has a simple structure and can ensure detection accuracy, making it easy and reliable to detect whether the sealing pin of the battery cell 200 has been properly removed.

[0059] In other embodiments, the positioning sensor 1462 and the third drive member 1464 of the detection component 146 may also be mounted on the lifting plate 143, and the pressure strip 1461 may be slidably mounted on the lifting plate 143 along the third direction Z.

[0060] like Figure 1 As shown, the nail-pulling device 120 also includes a transverse drive mechanism 150, which drives the nail-pulling mechanism 140 to move along the second direction Y.

[0061] The transverse drive mechanism 150 is provided with a transverse plate 151 at its execution end. The lifting drive mechanism 130 is fixed to the transverse plate 151. The transverse drive mechanism 150 drives the lifting drive mechanism 130 and the nail pulling mechanism 140 to move along the second direction Y through the transverse plate 151.

[0062] Understandably, the pressure strip 1461 is positioned along the second direction Y on the side of the first mounting plate 144 away from the second mounting plate 145. After the first gripper assembly 141 and the second gripper assembly 142 remove the sealing pin from the battery cell 200, the lateral drive mechanism 150 drives the pin removal mechanism 140 to move along the second direction Y, so that the pressure strip 1461 moves above the injection hole.

[0063] In some embodiments of this application, the transverse drive mechanism 150 is used to drive the nail removal mechanism 140 to move between the nail removal station and the unloading station; when the nail removal mechanism 140 reaches the unloading station, the first gripper 1412 and the corresponding second gripper 1422 move away from each other, and the nail removal mechanism 140 releases the sealing nail.

[0064] The transverse drive mechanism 150 is a common motor belt drive mechanism, in which the belt drives the transverse plate 151 to move along the second direction Y. When the nail removal mechanism 140 reaches the unloading station, under the drive of the first drive member 1411 and the second drive member 1421, the first gripper 1412 and the second gripper 1422 move away from each other to release the sealing nail, and the sealing nail falls down naturally.

[0065] This configuration allows for the automated transfer of the sealing pins removed from the battery cell 200 from the pin removal station to the unloading station, enabling repeated pin removal operations and improving pin removal efficiency.

[0066] like Figure 1 and Figure 2As shown, in some embodiments of this application, the nail removal device 100 further includes a collection box 160, which is disposed at the unloading station. When the nail removal mechanism 140 arrives at the unloading station, the collection box 160 is located below the nail removal mechanism 140. The collection box 160 is used to receive the sealing nails released by the nail removal mechanism 140.

[0067] The upper side of the collection box 160 has an opening, and the upper side of the collection box 160 is also provided with a feed hopper corresponding to the opening of the collection box 160. When the nail removal mechanism 140 moves to the unloading position, the collection box 160 is located below the nail removal mechanism 140. The sealing nail falls into the collection box 160 from the feed hopper. After the collection box 160 is full, it is taken out and poured out.

[0068] This setup allows for the collection of removed sealing nails, facilitating their reuse and maintaining a clean working environment.

[0069] like Figure 7 and Figure 8 As shown, in some embodiments of this application, the restraint tray 110 includes a partition assembly 111, a first end plate 112, a movable plate 113, a second end plate 114, and a pressing drive mechanism 115. The partition assembly 111 includes a plurality of partitions 1111 spaced apart, with a placement space for placing a battery cell 200 formed between two adjacent partitions 1111; the first end plate 112 is disposed at one end of the partition assembly 111; the movable plate 113 is slidably disposed at the other end of the partition assembly 111; the second end plate 114 is disposed at the end of the movable plate 113 away from the partition assembly 111; the pressing drive mechanism 115 is mounted on the second end plate 114 and is used to drive the movable plate 113 closer to the partition assembly 111, pressing the plurality of partitions 1111 against the first end plate 112.

[0070] The thickness direction of the partition 1111, the first end plate 112, the movable plate 113, and the second end plate 114 all extends along the first direction X. Multiple partitions 1111 are spaced apart along the first direction X. The first end plate 112 is disposed at one end of the partition assembly 111 along the first direction X. The movable plate 113 is slidably disposed at the other end of the partition assembly 111 along the first direction X. The second end plate 114 is disposed at the end of the movable plate 113 away from the partition assembly 111 along the first direction X. The partition assembly 111 includes two sets of guide rods 1112 extending along the first direction X. The two sets of guide rods 1112 are spaced apart along the second direction Y. The two ends of the partitions 1111 and the movable plate 113 along the second direction Y are slidably mounted on the guide rods 1112 to ensure that they do not tilt during movement along the first direction Y.

[0071] The pressing drive mechanism 115 includes a lead screw 1151, a tightening member 1152, a nut, and a pressure plate. The lead screw 1151 passes through the second end plate 114 along the first direction X. The nut is threaded into the lead screw 1151 and is installed on the first end plate 112. The tightening member 1152 is installed on the outer end of the lead screw 1151, and the pressure plate is installed on the inner end of the lead screw 1151. Tightening the tightening member 1152 drives the lead screw 1151 to rotate. The lead screw 1151 drives the pressure plate to push the movable plate 113 along the first direction X until the movable plate 113 presses the multiple partitions 1111 of the partition assembly 111 against the first end plate 112. The multiple partitions 1111 abut against each other, and a placement space is formed between two adjacent partitions 1111 to fix a battery cell 200.

[0072] Multiple clamping drive mechanisms 115 can be provided, and multiple clamping drive mechanisms 115 can work together to act on the movable plate 113; alternatively, only one clamping drive mechanism 115 can be provided, and one clamping drive mechanism 115 acts on the movable plate 113 in the center.

[0073] This configuration allows for the simple and reliable fixing of multiple battery cells 200 along the first direction X, enabling the sealing nail to reach a preset position. This facilitates the lowering of the nail removal mechanism 140, which then clamps the sealing nail, thus improving the nail removal accuracy.

[0074] like Figure 7 As shown, in some embodiments of this application, two partition assemblies 111 are provided, and the two partition assemblies 111 are spaced apart along the second direction Y. The two partition assemblies 111 are respectively provided with corresponding pressing drive mechanisms 115 and movable plates 113. The two partition assemblies 111 share a first end plate 112 and a second end plate 114. Correspondingly, two nail pulling mechanisms 140 are provided, and the two nail pulling mechanisms 140 are installed on the same lifting plate 143. The nail pulling mechanisms 140 correspond one-to-one with the partition assemblies 111.

[0075] This configuration allows for the removal of a larger number of battery cells 200, improving removal efficiency.

[0076] In other embodiments, the number of partition assemblies 111 may also be one, three, four, etc.

[0077] like Figure 7 As shown, in some embodiments of this application, the restraint tray 110 further includes a pull block 116 and a rod, the rod slidably passing through the second end plate 114, the outer end of the rod being connected to the pull block 116, and the inner end being connected to the movable plate 113.

[0078] After loosening the tightening member 1152 of the clamping drive mechanism 115 in the reverse direction, the movable plate 113 can be opened by pulling the pull block 116 outward along the first direction X, and the separator assembly 111 can be quickly unlocked, so as to quickly remove the battery cell 200.

[0079] like Figures 1 to 8 As shown, the working principle of the nail-removing device 100 in this embodiment is as follows:

[0080] Multiple battery cells 200 are loaded onto the restraint tray 110, the tightening member 1152 is turned, and the separator assembly 111 is pressed against the first end plate 112 using the movable plate 113, thus fixing the battery cells 200 in the preset position.

[0081] The transverse drive mechanism 150 drives the nail removal mechanism 140 to move along the second direction Y to the nail removal station, and the lifting drive mechanism 130 drives the nail removal mechanism 140 to descend to the nail removal height. The first drive member 1411 and the second drive member 1421 extend in opposite directions. Multiple first grippers 1412 move synchronously along the first direction X, and multiple second grippers 1422 move synchronously along the first direction X. Each first gripper 1412 and the corresponding second gripper 1422 approach each other and clamp the corresponding sealing nail.

[0082] The lifting drive mechanism 130 drives the nail removal mechanism 140 to rise a certain height, removing the sealing nail from the battery cell. The lateral drive mechanism 150 drives the nail removal mechanism 140 to move along the second direction Y, so that the detection component 146 moves above the battery cell 200.

[0083] The third driving component 1464 extends, and the driving pressure bar 1461 descends;

[0084] If the pressure bar 1461 can abut against the surface of the battery cell 200, the positioning sensor 1462 sends a signal that it has been removed.

[0085] If the pressure bar 1461 fails to descend to contact the surface of the battery cell 200, the positioning sensor 1462 sends an unremoved signal, and manual handling is required.

[0086] The lifting drive mechanism 130 drives the nail removal mechanism 140 to continue rising, and the lateral drive mechanism 150 drives the nail removal mechanism 140 to move to the unloading station. The first drive component 1411 and the second drive component 1421 retract at the same time, and each first gripper 1412 and the corresponding second gripper 1422 move away from each other, releasing the corresponding sealing nail. The sealing nail falls into the collection box 160 below.

[0087] Loosen the tightening part 1152, pull the pull block 116 outward, and use the robotic arm to remove the battery cell 200;

[0088] Repeat the above steps to remove the pins from the next group of 200 battery cells.

[0089] The nail removal device 100 of this application embodiment includes a restraint tray 110, a first drive member 1411, and a second drive member 1421. The restraint tray 110 fixes the position of the battery cell 200. The first drive member 1411 drives multiple first grippers 1412 to move synchronously, and the second drive member 1421 drives multiple second grippers 1422 to move synchronously. This simplifies the structure of the nail removal mechanism 140 and provides high nail removal accuracy. The detection component 146 detects whether there is any residual sealing nail after nail removal. Every five battery cells 200 share a pressure strip 1461, which reduces the number of detection components 146 and provides good detection accuracy, thus improving the reliability of the nail removal action. After removing the sealing nail, the nail removal mechanism 140 moves to the unloading station to unload the sealing nail into the collection box 160, which can automatically collect the removed sealing nail and improve the nail removal efficiency.

[0090] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A nail-removing device (100), characterized in that, include: A restraint tray (110) is provided at the nail removal station for securing multiple battery cells (200); The nail removal device (120) includes a lifting drive mechanism (130) and a nail removal mechanism (140). The lifting drive mechanism (130) is used to drive the nail removal mechanism (140) down to the nail removal height. The nail removal mechanism (140) includes a first gripper assembly (141) and a second gripper assembly (142). The first gripper assembly (141) includes a plurality of first grippers (1412) spaced apart. The second gripper assembly (142) includes a plurality of second grippers (1422) spaced apart. The plurality of first grippers (1412) move under the drive of the same driving member, and the plurality of second grippers move under the drive of the same driving member. The first grippers (1412) and the second grippers (1422) correspond one-to-one. The first grippers (1412) and the corresponding second grippers (1422) move closer to or further away from each other.

2. The nail-removing device (100) according to claim 1, characterized in that, The first gripper assembly (141) includes a first drive member (1411) for driving a plurality of first grippers (1412) to move synchronously. The second gripper assembly (142) includes a second drive member (1421) for driving a plurality of second grippers (1422) to move synchronously. The first drive member (1411) and the second drive member (1421) have opposite driving directions.

3. The nail-removing device (100) according to claim 2, characterized in that, The nail-pulling mechanism (140) further includes a lifting plate (143), a first mounting plate (144), and a second mounting plate (145). The execution end of the lifting drive mechanism (130) is connected to the lifting plate (143). The first mounting plate (144) and the second mounting plate (145) are arranged side by side and are slidably mounted on the lifting plate (143). A plurality of first grippers (1412) are disposed on the first mounting plate (144), and a plurality of second grippers (1422) are disposed on the second mounting plate (145). The first drive member (1411) and the second drive member (1421) are both fixed to the lifting plate (143). The execution end of the first drive member (1411) is connected to the first mounting plate (144), and the execution end of the second drive member (1421) is connected to the second mounting plate (145).

4. The nail-removing device (100) according to claim 1, characterized in that, The nail removal mechanism (140) includes a first mounting plate (144) and a second mounting plate (145). The first gripper (1412) includes a first connecting part (1413) and a first clamping part (1414). The second gripper (1422) includes a second connecting part (1423) and a second clamping part (1424). The first connecting part (1413) connects the first mounting plate (144) and the first clamping part (1414). The second connecting part (1423) connects the second mounting plate (145) and the second clamping part (1424). The first clamping part (1414) and the second clamping part (1424) correspond one-to-one. The first clamping part (1414) and the corresponding second clamping part (1424) are arranged opposite to each other.

5. The nail-removing device (100) according to claim 4, characterized in that, The first clamping part (1414) and the corresponding second clamping part (1424) are respectively provided with rubber layers on their adjacent sides.

6. The nail-removing device (100) according to claim 1, characterized in that, The nail-pulling mechanism (140) further includes: A detection component (146) is disposed on the first gripper assembly (141) for detecting whether the sealing pin has been removed from the battery cell (200).

7. The nail-removing device (100) according to claim 6, characterized in that, The nail removal mechanism (140) includes a first mounting plate (144), and the detection component (146) includes: A pressure strip (1461) is slidably mounted on the first mounting plate (144); A positioning sensor (1462) is disposed on the first mounting plate (144); A sensing element (1463) is disposed on the pressure strip (1461); A third driving component (1464) is disposed on the first mounting plate (144) for driving the pressure bar (1461) to descend; If the pressure bar (1461) can descend to press against the surface of the battery cell (200), the positioning sensor (1462) detects that the sensing element (1463) has moved into place and sends a removed signal; If the positioning sensor (1462) does not detect that the sensing element (1463) has moved into place, it sends an unremoved signal.

8. The nail-removing device (100) according to claim 1, characterized in that, The nail-pulling device (120) further includes a transverse drive mechanism (150), which is used to drive the nail-pulling mechanism (140) to move between the nail-pulling station and the unloading station; When the nail-pulling mechanism (140) reaches the unloading station, the first gripper (1412) and the corresponding second gripper (1422) move away from each other.

9. The nail-removing device (100) according to claim 8, characterized in that, The nail-removing device (100) further includes: A collection box (160) is provided at the unloading station. When the nail removal mechanism (140) arrives at the unloading station, the collection box (160) is located below the nail removal mechanism (140).

10. The nail-removing device (100) according to claim 1, characterized in that, The restraint tray (110) includes: The separator assembly (111) includes a plurality of separators (1111) spaced apart, with a placement space for placing a battery cell (200) formed between two adjacent separators (1111); A first end plate (112) is disposed at one end of the partition assembly (111); A movable plate (113) is slidably disposed at the other end of the partition assembly (111); The second end plate (114) is disposed at the end of the movable plate (113) away from the partition assembly (111); A pressing drive mechanism (115) is mounted on the second end plate (114) for driving the movable plate (113) close to the partition assembly (111) to press the plurality of partitions (1111) against the first end plate (112).

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