Shell cutting equipment

Abstract

The utility model discloses shell cutting equipment, and relates to the technical field of battery production, and the shell cutting equipment comprises a reversing driving assembly, a feeding driving assembly and a cutting assembly; the reversing driving assembly is used for driving the battery to rotate so that one end of the battery can face the cutting area. The feeding driving assembly is connected with the reversing driving assembly; the feeding driving assembly is used for driving the reversing driving assembly to move so as to drive the end, facing the cutting area, of the battery to enter or leave the cutting area. And the cutting assembly is used for cutting the shell of the battery entering the cutting area. The shell cutting equipment can solve the technical problems that in the current battery disassembling operation, a shell needs to be cut in a manual mode, the cutting position is difficult to accurately control, more manpower and time costs need to be consumed, and the disassembling efficiency is low.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a shell cutting device. Background Art

[0002] During the battery inspection process, the battery needs to be disassembled to remove the shell covering the battery cell and the battery management system surface, so that the internal defects of the battery can be visually detected and whether the internal structure of the battery complies with the production process can be determined, thereby controlling the quality of the battery product.

[0003] The current battery disassembly operation requires manual cutting of the shell, which is labor-intensive and difficult to accurately control the cutting position. Especially when the battery has multiple parts that need to be cut, the disassembly operation will be extremely cumbersome, requiring a lot of manpower and time costs, and the disassembly efficiency is low. Utility Model Content

[0004] The purpose of the present application is to provide a shell cutting device, which aims to solve the technical problems that the current battery disassembly operation requires manual shell cutting, the cutting position is difficult to accurately control, a lot of manpower and time costs are consumed, and the disassembly efficiency is low.

[0005] To achieve the above purpose, the shell cutting device proposed in this application includes:

[0006] A reversing drive assembly, the reversing drive assembly is used to drive the battery to rotate so that one end of the battery faces the cutting area;

[0007] A feed drive assembly, the feed drive assembly being connected to the reversing drive assembly; the feed drive assembly being used to drive the reversing drive assembly to move so as to drive the battery to enter or leave the cutting area toward one end of the cutting area;

[0008] A cutting assembly is used to cut the battery shell that enters the cutting area.

[0009] In the technical solution of the embodiment of the present application, through the cooperation between the reversing drive assembly and the feed drive assembly, different parts of the battery can be conveniently and accurately delivered to the cutting area as needed, and the battery shell entering the cutting area can be cut by the cutting assembly, thereby realizing automatic cutting of the shell and reducing manual operation, thereby reducing cutting complexity, improving battery disassembly efficiency, and reducing manpower and time costs. In addition, the reversing drive assembly, the feed drive assembly and the cutting assembly have high movement accuracy, which can ensure the accuracy of the battery moving position and the cutting position, thereby eliminating the uncertainties existing in manual operation, reducing the risk of damage and short circuit to the battery due to improper cutting, and making the shell cutting quality higher and the batch cutting effect more uniform.

[0010] In some embodiments, the shell cutting device further comprises a positioning seat; the positioning seat is connected to the reversing drive assembly, and the positioning seat is provided with a receiving groove, and the receiving groove is used to clamp and fix the battery.

[0011] By providing the positioning seat, the battery can be initially positioned using the accommodating groove, so as to improve the stability when the battery is further tightened and positioned.

[0012] In some embodiments, the shell cutting device further comprises a pressing block; the pressing block is detachably connected to the positioning seat, and the pressing block is used to press the battery into the receiving groove.

[0013] The pressing block can be detachably connected to the positioning seat by means of threaded fastener locking, snap connection, etc., so that the pressing block can cooperate with the positioning seat to press the battery, thereby achieving a tight positioning of the battery, avoiding the battery from shaking relative to the positioning seat during the cutting process, and improving the cutting stability.

[0014] In some embodiments, a contoured groove is formed on one side of the pressing block facing the positioning seat, and the contoured groove is used to accommodate the battery and fit with the battery.

[0015] The shape of the profiling groove is adapted to the shape of the battery. Through the cooperation between the profiling groove and the battery, the tightness of the pressing block and the battery can be improved, thereby further improving the pressing stability of the battery to ensure the stability of subsequent shell cutting.

[0016] In some embodiments, the shell cutting device further comprises a fixed base; the reversing drive assembly and the cutting assembly are arranged on the fixed base.

[0017] By setting a fixed base, the reversing drive assembly, cutting assembly and other components can have a unified installation reference, thereby improving the accuracy of the relative position of each component, and further improving the accuracy of the shell cutting operation to obtain a better cutting effect.

[0018] In some embodiments, the fixed base is provided with a limit column; the shell cutting device also includes a limit plate, the limit plate is connected to the reversing drive assembly, and the limit plate is used to fix the battery; the limit plate is provided with a limit groove, and the limit groove is used to clamp on the limit column along the feeding direction of the battery when the battery enters the cutting area toward one end of the cutting area.

[0019] By snapping together the limiting column and the limiting groove, some of the degrees of freedom of the reversing drive assembly and the battery can be limited, thus preventing the reversing drive assembly and the battery from being displaced or deflected due to vibration during the cutting process, thereby improving the positioning accuracy of the battery and the cutting stability.

[0020] In some embodiments, the limit plate is connected to the movable part of the reversing drive assembly; the limit plate is provided with at least two limit grooves, at least two of which correspond one to one with each end of the battery, and the limit groove is used to clamp onto the limit column along the feeding direction of the battery when the corresponding end of the battery enters the cutting area.

[0021] Based on the above arrangement, when cutting the shell at each end of the battery, the snap-fitting between the limit groove and the limit column can be utilized to limit some of the degrees of freedom of the battery, thereby preventing the battery from being displaced or deflected due to vibration during the cutting process, thereby further improving the positioning accuracy and cutting stability of the battery.

[0022] In some embodiments, the limiting column is cylindrical.

[0023] When the limiting column is set to a cylindrical shape, the limiting groove can be connected to the limiting column in different directions, which to a certain extent avoids the situation where the limiting groove cannot be smoothly connected to the limiting column due to deviation in the feeding direction, thereby improving the fault tolerance of the shell cutting equipment.

[0024] In some embodiments, the shell cutting device further comprises a slider; the slider is connected to the feed drive assembly, and the bottom wall of the slider is slidably matched with the upper surface of the fixed base; the reversing drive assembly is connected to the slider.

[0025] By setting a slider, the reversing drive assembly can be supported so that the reversing drive assembly can be slidably fitted on the upper surface of the fixed base; this can avoid the reversing drive assembly and the battery shaking caused by the reversing drive assembly being suspended and the active part of the feed drive assembly having an excessively long force arm during the feeding process, thereby improving the position stability of each component during the cutting process.

[0026] In some embodiments, the shell cutting device further comprises a guide bar; the guide bar is arranged on the fixed base; the guide bar has a guide surface, the guide surface extends along the driving direction of the feed drive assembly, and the side wall of the slider is slidably fitted on the guide surface.

[0027] By providing the guide strip, a limiting and guiding effect can be formed on the slider, thereby preventing the battery from deviating from the preset position due to a deviation in the driving direction of the feed drive assembly.

[0028] In some embodiments, the guide strip is provided with a buckle structure; the buckle structure is used to abut against the side of the slider facing away from the fixed base to prevent the slider from leaving the upper surface of the fixed base upward.

[0029] By providing the reverse buckle structure, the slider can be prevented from bouncing relative to the upper surface of the fixed base, thereby improving the movement stability of the reversing drive assembly and the battery.

[0030] In some embodiments, the slider is provided with a connecting groove, and the connecting groove passes through the slider in a vertical direction;

[0031] The feed drive assembly includes a feed drive device and an adapter block; the fixed portion of the feed drive device is connected to the upper surface of the fixed base, the adapter block is connected to the movable portion of the feed drive device, and the adapter block is snap-fitted into the connecting groove.

[0032] By arranging a vertically penetrating connecting groove on the slide block, feed drive devices of different heights can be adapted, so that feed drive devices of different heights can all be connected to the slide block through the adapter block, thereby improving the applicability of the shell cutting device.

[0033] In some embodiments, a collecting groove is provided on the upper surface of the fixed base; the collecting groove is located at at least one of the reversing drive assembly, the feed drive assembly, and the cutting assembly, and the collecting groove is used to collect electrolyte overflowed from the battery.

[0034] The collecting trough is concave relative to the upper surface of the fixed base, which can guide and collect the electrolyte overflowing to the fixed base during the cutting process, so as to prevent the electrolyte from flowing to other areas and causing adverse effects on human body, equipment and environment.

[0035] In some embodiments, the shell cutting device further comprises a buffer container; the buffer container is arranged below the fixed base; a guide channel is opened in the collecting trough, and the guide channel is connected to the buffer container.

[0036] In this embodiment, a cache container is correspondingly arranged below the fixed base. The cache container has a large capacity and can be used to store a large amount of electrolyte. Specifically, a plurality of diversion channels can be spaced apart in the collecting trough. After the electrolyte flows to the collecting trough under the diversion effect of the collecting trough, the electrolyte can flow along the diversion channel to the cache container below for storage, thereby realizing timely transfer of the electrolyte and preventing the electrolyte from accumulating on the upper surface of the fixed base for a long time and causing adverse effects on the human body, equipment and the environment.

[0037] In some embodiments, the cutting assembly includes a cutting drive device and a cutting knife group; the cutting knife group is connected to the cutting drive device; the cutting drive device is used to drive the cutting knife group to rotate around the feeding direction of the battery to perform a circular cut on the end of the battery entering the cutting area.

[0038] Driven by the cutting drive device, the blades of the cutting knife group rotate around the central axis of the battery; through the contact between the cutting edge of the blade and the shell on the outer peripheral surface of the cylindrical lithium battery, the circular cutting operation of the shell of the cylindrical lithium battery can be achieved.

[0039] In some embodiments, the cutting knife group includes a connecting sleeve and a cutting blade; the connecting sleeve is connected to the cutting drive device, and the inner cavity of the connecting sleeve constitutes the cutting area; at least a portion of the cutting blade is arranged in the inner cavity of the connecting sleeve.

[0040] By setting a connecting sleeve, the shell cutting operation can be transferred to the internal space, thereby providing a relatively independent operating space for the shell cutting operation, avoiding interference with the cutting operation by external factors to a certain extent, and also avoiding adverse effects of the cutting operation on external devices or operators to a certain extent.

[0041] In some embodiments, the cutting knife assembly further includes a positioning block; the positioning block is disposed in the inner cavity of the connecting sleeve; the positioning block is used to abut against one end of the battery entering the cutting area to prevent the battery from continuing to feed.

[0042] By setting the positioning stopper, the battery can be limited axially to avoid excessive feeding of the battery due to driving errors of the feed drive assembly, thereby improving the accuracy of the cutting position.

[0043] In some embodiments, the positioning block is slidably connected to the inner cavity of the connecting sleeve along the axial direction of the connecting sleeve.

[0044] Specifically, the positioning block can be connected to the inner cavity of the connecting sleeve by axial sliding with the help of the guide rail slider structure, so that the axial position of the positioning block can be conveniently adjusted according to the actual size of the battery and the actual cutting requirements, thereby meeting the different axial limit requirements of the battery and improving the applicability of the shell cutting equipment.

[0045] In some embodiments, the inner cylinder wall of the connecting sleeve is provided with a first mounting plane, and the positioning stopper is attached to the first mounting plane.

[0046] By providing the first installation plane, it is easier to install the positioning block, and the contact area can be increased by the fit between the plane on the positioning block and the first installation plane, thereby improving the connection stability of the positioning block.

[0047] In some embodiments, the cutting blade assembly further comprises an adjusting rod; a first end of the adjusting rod is movably connected to the connecting sleeve, and the cutting blade is connected to a second end of the adjusting rod;

[0048] The connecting sleeve is provided with an avoidance channel, and the avoidance channel is communicated with the inner cavity of the connecting sleeve; the adjusting rod is used to drive the cutting blade to pass through the avoidance channel to adjust the distance that the cutting blade enters the inner cavity of the connecting sleeve.

[0049] By moving the adjustment rod, the distance that the cutting blade extends into the inner cavity of the connecting sleeve can be conveniently adjusted, so that the cutting depth can be quickly adjusted according to the actual size of the battery and the actual cutting requirements, thereby improving the applicability of the shell cutting equipment.

[0050] In some embodiments, the connecting sleeve is provided with an adjustment rail; the first end of the adjustment rod is slidably connected to the adjustment rail along a first path, and the first path is parallel to the radial direction of the connecting sleeve.

[0051] When the adjusting rod is slidably connected to the adjusting guide rail of the connecting sleeve, the distance that the cutting blade enters the inner cavity of the connecting sleeve can be conveniently adjusted, thereby realizing rapid adjustment of the cutting depth.

[0052] In some embodiments, the cutting knife group also includes an adjustment drive device; the fixed part of the adjustment drive device is arranged on the connecting sleeve, the movable part of the adjustment drive device is connected to the adjustment rod, and the adjustment drive device is used to drive the adjustment rod to slide relative to the adjustment guide rail along the first path.

[0053] By setting up an adjustment drive device, the position of the cutting blade can be adjusted quickly and conveniently without manual operation, and after the adjustment is completed, there is no need to use other fasteners to fix the cutting blade at the current position. This can greatly shorten the time for adjusting the cutting blade and improve the battery disassembly efficiency. The drive adjustment method through the adjustment drive device is more accurate than the manual adjustment method, thereby improving the accuracy of the cutting position.

[0054] In some embodiments, the cutting knife group also includes a knife seat; the knife seat is installed on the outer tube wall of the connecting sleeve; the knife seat is provided with a knife groove, the knife groove is opposite to the avoidance channel, and the cutting blade is slidably fitted in the knife groove.

[0055] In the process of moving the cutting blade by the adjusting rod to adjust the cutting depth, and in the process of cutting the shell, the knife groove can form a correction and limiting effect on the cutting blade, thereby ensuring the position accuracy and stability of the cutting blade, thereby improving the cutting quality.

[0056] In some embodiments, the outer wall of the connecting sleeve is provided with a second mounting plane, and the knife seat is attached to the second mounting plane.

[0057] By providing the second installation plane, it is easier to install the knife seat, and the contact area can be increased by the fit between the plane on the knife seat and the second installation plane, thereby improving the connection stability of the knife seat.

[0058] In some embodiments, the connecting sleeve is provided with a wire passing window, and the wire passing window is communicated with the inner cavity of the connecting sleeve.

[0059] The wire-passing window allows the cables in the shell cutting equipment to pass through, so that the cables can be better arranged and sorted; in addition, the wire-passing window also plays a role in reducing the weight of the connecting sleeve, which is more conducive to the lightweight development of the shell cutting equipment.

[0060] In some embodiments, the shell cutting device further comprises a protective cover, which covers the reversing drive assembly, the feed drive assembly and the cutting assembly.

[0061] By setting up a protective cover, on the one hand, the corresponding components of the shell cutting equipment can be enclosed and protected to prevent external factors from causing adverse effects on the normal operation of the components; on the other hand, it can protect the operators to avoid personal injury to the operators due to accidents such as battery explosion during battery disassembly.

[0062] In some embodiments, the shell cutting device further includes a fresh air device; the fresh air device is installed on the protective cover, and the fresh air device is used to discharge the gas inside the protective cover to the outside.

[0063] By setting up a fresh air device, the volatile substances in the electrolyte can be discharged to the outside of the protective cover in time, thereby achieving an exhaust purification effect and avoiding the accumulation of volatile substances in the electrolyte and causing adverse effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0065] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the shell cutting device of the present application;

[0066] Figure 2 This is a schematic structural diagram of a reversing drive assembly and a feed drive assembly in one embodiment of a shell cutting device of the present application;

[0067] Figure 3 This is a structural schematic diagram of a reversing drive assembly in an embodiment of a shell cutting device of the present application;

[0068] Figure 4 This is a schematic diagram of the structure of a buffer container in an embodiment of a shell cutting device of the present application;

[0069] Figure 5 This is a schematic structural diagram of a cutting assembly in one embodiment of a shell cutting device of the present application;

[0070] Figure 6 This is a schematic diagram of the partial structure of a cutting knife group in an embodiment of the shell cutting device of the present application.

[0071] Description of Figure Numbers:

[0072]

[0073]

[0074] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0075] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0076] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0077] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0078] Battery cells and battery management systems (BMS) are the basic components of batteries. A battery cell is an electrochemical device used to store and release electrical energy, usually including a positive electrode, a negative electrode, a separator and an electrolyte, which can convert chemical energy into electrical energy through chemical reactions. The battery management system is responsible for monitoring and managing the battery's charging and discharging process to ensure the battery's safety and performance stability. The battery management system can monitor parameters such as the battery cell's voltage, temperature and current, estimate the battery state and perform balance control to avoid overcharging, over-discharging, over-temperature and other situations, and can provide a communication interface to interact with external systems for data.

[0079] The surface of the battery cell and the battery management system is usually covered with a shell, which is used to provide physical support and isolation protection to ensure the stable operation of the battery cell and the battery management system and protect them from damage by the external environment. During the battery inspection process, the battery needs to be disassembled to remove the shell covering the surface of the battery cell and the battery management system, so that the internal defects of the battery can be visually detected and whether the internal structure of the battery meets the production process can be determined, and the quality of the battery product can be controlled.

[0080] The current battery disassembly operation requires manual shell cutting, which is labor-intensive and difficult to accurately control the cutting position. Improper cutting may easily cause damage to the internal structure of the battery. Especially when the battery has multiple parts that need to be cut, the disassembly operation will be extremely cumbersome. Taking cylindrical lithium batteries as an example, the shell parts at both ends of the battery need to be circumcised separately so that the shell can be completely removed. This operation requires a lot of manpower and time costs, has low disassembly efficiency, and increases the risk of damage to the battery due to improper cutting.

[0081] Based on the above problems, in order to improve the cutting efficiency of the battery shell, reduce the cutting difficulty, and improve the cutting accuracy, the embodiment of the present application provides a shell cutting device, please refer to Figure 1 The shell cutting device comprises a reversing drive assembly 1, a feeding drive assembly 2 and a cutting assembly 3; wherein:

[0082] The reversing drive assembly 1 is used to drive the battery 4 to rotate so that one end of the battery 4 faces the cutting area (not shown in the figure);

[0083] The feed drive assembly 2 is connected to the reversing drive assembly 1; the feed drive assembly 2 is used to drive the reversing drive assembly 1 to move, so as to drive the battery 4 to enter or leave the cutting area toward one end of the cutting area;

[0084] The cutting assembly 3 is used to cut the shell of the battery 4 that enters the cutting area.

[0085] In this embodiment, the reversing drive assembly 1 may include a drive device and a transmission mechanism and a reduction mechanism used in conjunction therewith. Among them, the drive device may directly adopt a rotary drive device, such as a rotary cylinder, a rotary motor, etc.; when the drive device adopts a rotary drive device, the speed of the rotary drive device may be reduced to a desired speed by a reduction mechanism, and a larger driving torque may be obtained to ensure that the reversing drive assembly 1 can stably drive the battery 4 to rotate. In addition, the drive device may also adopt a linear drive device, and convert the linear motion into rotary motion by a transmission mechanism to realize the rotary drive of the battery 4.

[0086] The reversing drive assembly 1 has a fixed part and a movable part. For example, the reversing drive assembly 1 includes a rotary cylinder. The cylinder body of the rotary cylinder constitutes the fixed part of the reversing drive assembly 1, and the piston of the rotary cylinder constitutes the movable part of the reversing drive assembly 1. A positioning structure or a positioning fixture can be set on the movable part of the reversing drive assembly 1 to fix the battery 4; wherein, the specific structural form of the positioning structure and the positioning fixture can be flexibly set according to the actual outline size of the battery 4, and it is only necessary to ensure that the part of the battery 4 that needs to be cut into the shell is not blocked, and no limitation is made here.

[0087] The feed drive assembly 2 may include a drive device and a transmission mechanism and a reduction mechanism used in conjunction therewith, such as a cylinder, a linear module, a motor equipped with a transmission screw, etc. The feed drive assembly 2 has a fixed portion and a movable portion. Taking the feed drive assembly 2 as an example, the cylinder body portion of the cylinder constitutes the fixed portion of the feed drive assembly 2, and the piston portion of the cylinder constitutes the movable portion of the feed drive assembly 2. The fixed portion of the feed drive assembly 2 can be fixed on a mounting base, and the movable portion of the feed drive assembly 2 can be connected to the fixed portion of the reversing drive assembly 1 by means of a corresponding adapter, so that the feed drive assembly 2 can drive the reversing drive assembly 1 and the battery 4 on the reversing drive assembly 1 to move along a preset direction.

[0088] The cutting assembly 3 may include a driving assembly and a cutting tool, and the working area of ​​the cutting tool constitutes a cutting area; when the end of the battery 4 to be cut enters the cutting area, the driving assembly may drive the cutting tool to cut the shell of the battery 4. The driving assembly may include a rotary driving device, a linear driving device, and a transmission mechanism and a reduction mechanism used in conjunction with the driving assembly; the driving assembly only needs to drive the cutting tool to move along a preset trajectory to complete the cutting operation at the preset position of the shell, which is not limited here.

[0089] Based on the above configuration, taking the battery 4 as an example of a cylindrical lithium battery (a cylindrical lithium battery has two ends; if there is a description of the specific cutting process in the subsequent description, the cylindrical lithium battery is used as an example for explanation, and no further description is given), the actual cutting process of the shell is described as follows:

[0090] The operator first fixes the battery 4 on the reversing drive assembly 1, and the reversing drive assembly 1 drives the battery 4 to rotate so that the first end of the battery 4 faces the cutting area; then the feed drive assembly 2 drives the reversing drive assembly 1 to move in a direction close to the cutting area to drive the first end of the battery 4 into the cutting area; then the shell of the first end is cut in a circular manner by the cutting assembly 3; after the cutting is completed, the feed drive assembly 2 drives the reversing drive assembly 1 to move in a direction away from the cutting area to drive the first end of the battery 4 to exit the cutting area; then the reversing drive assembly 1 drives the battery 4 to rotate so that the second end of the battery 4 faces the cutting area; then the feed drive assembly 2 drives the reversing drive assembly 1 to move in a direction close to the cutting area to drive the second end of the battery 4 to enter the cutting area; then the shell of the second end is cut in a circular manner by the cutting assembly 3; after the cutting is completed, the feed drive assembly 2 drives the reversing drive assembly 1 to move in a direction away from the cutting area to drive the second end of the battery 4 to exit the cutting area; at this point, the cutting operation of the shell of the cylindrical lithium battery has been completed.

[0091] When other types of batteries are used, the cutting process of the cylindrical lithium battery can be followed in the same way, which will not be described in detail here.

[0092] It can be seen that the shell cutting equipment provided in this embodiment can conveniently and accurately deliver different parts of the battery 4 into the cutting area as needed through the cooperation between the reversing drive component 1 and the feed drive component 2, and cut the shell of the battery 4 entering the cutting area through the cutting component 3, thereby realizing the automatic cutting of the shell, reducing manual operation, thereby reducing the cutting complexity, improving the disassembly efficiency of the battery 4, and reducing the investment in manpower and time costs; in addition, the reversing drive component 1, the feed drive component 2 and the cutting component 3 have high movement accuracy, which can ensure the accuracy of the moving position and cutting position of the battery 4, thereby eliminating the uncertainties existing in manual operation, reducing the risk of damage and short circuit to the battery 4 due to improper cutting, and making the cutting quality of the shell higher and the batch cutting effect more uniform.

[0093] In some embodiments, reference Figures 1 to 3 The shell cutting device also includes a positioning seat 5; the positioning seat 5 is connected to the reversing drive assembly 1, and the positioning seat 5 is provided with a receiving groove 501, and the receiving groove 501 is used to clamp and fix the battery 4.

[0094] Specifically, the positioning seat 5 can be connected to the movable part of the reversing drive assembly 1, and the shape of the accommodating groove 501 can be specifically set according to the outline size of the battery 4 to ensure that the battery 4 can be stably placed in the accommodating groove 501 without sliding. Taking the battery 4 as a cylindrical lithium battery as an example, the cross section of the accommodating groove 501 can be set to an arc shape that matches the outer circumference of the cylindrical lithium battery; preferably, the cross section of the accommodating groove 501 can be set as follows Figure 3 The wedge shape shown can better adapt to cylindrical lithium batteries of different diameters and improve the applicability of the shell cutting equipment.

[0095] By providing the positioning seat 5 , the battery 4 can be initially positioned using the receiving groove 501 , so as to improve the stability when the battery 4 is further fixed in position later.

[0096] In some embodiments, reference Figures 1 to 3 The shell cutting device further includes a pressing block 6 ; the pressing block 6 is detachably connected to the positioning seat 5 , and the pressing block 6 is used to press the battery 4 into the accommodating groove 501 .

[0097] Specifically, the pressing block 6 can be detachably connected to the positioning seat 5 by means of threaded fastener locking, snap connection, etc., so that the pressing block 6 can cooperate with the positioning seat 5 to press the battery 4, thereby achieving a tight positioning of the battery 4, avoiding the battery 4 from shaking relative to the positioning seat 5 during the cutting process, and improving the cutting stability; when the shell of the battery 4 is cut, it is only necessary to remove the pressing block 6 from the positioning seat 5 and take the battery 4 out of the accommodating groove 501.

[0098] In some embodiments, reference Figures 1 to 3 A contoured groove 601 is formed on one side of the pressing block 6 facing the positioning seat 5 , and the contoured groove 601 is used to accommodate the battery 4 and fit with the battery 4 .

[0099] The shape of the profiling groove 601 is adapted to the shape of the battery 4. Through the cooperation between the profiling groove 601 and the battery 4, the degree of close fit between the pressing block 6 and the battery 4 can be improved, thereby further improving the stability of the pressing of the battery 4 to ensure the stability of the subsequent shell cutting. Specifically, the shape of the profiling groove 601 can be specifically set according to the outline size of the battery 4; taking the battery 4 as a cylindrical lithium battery, the cross section of the profiling groove 601 can be set to a circular arc shape that matches the outer circumference of the cylindrical lithium battery; preferably, the cross section of the profiling groove 601 can be set as follows Figure 3 The wedge shape shown can better adapt to cylindrical lithium batteries of different diameters and improve the applicability of the shell cutting equipment.

[0100] In some embodiments, reference Figure 1 and Figure 2 The shell cutting device also includes a fixed base 7; the reversing drive assembly 1 and the cutting assembly 3 are arranged on the fixed base 7.

[0101] By setting the fixed base 7, the reversing drive assembly 1, the cutting assembly 3 and other components can have a unified installation reference, thereby improving the accuracy of the relative position of each component, and further improving the accuracy of the shell cutting operation, and obtaining a better cutting effect. Specifically, the fixed base 7 may include a bracket part located at the bottom and a table part located at the top, and the reversing drive assembly 1 and the cutting assembly 3 can be arranged on the upper surface of the table part; Figure 1 Taking the position shown as an example, the specific cutting process of the shell is as follows:

[0102] The operator first fixes the battery 4 on the reversing drive assembly 1, and the reversing drive assembly 1 drives the battery 4 to rotate around the Z axis so that the first end of the battery 4 faces the cutting area; then the feed drive assembly 2 drives the reversing drive assembly 1 to move in the positive direction along the X axis to drive the first end of the battery 4 to enter the cutting area; then the shell of the first end is cut in a circular manner by the cutting assembly 3; after the cutting is completed, the feed drive assembly 2 drives the reversing drive assembly 1 to move in the reverse direction along the X axis to drive the first end of the battery 4 to exit the cutting area; then the reversing drive assembly 1 drives the battery 4 to rotate around the Z axis so that the second end of the battery 4 faces the cutting area; then the feed drive assembly 2 drives the reversing drive assembly 1 to move in the positive direction along the X axis to drive the second end of the battery 4 to enter the cutting area; then the shell of the second end is cut in a circular manner by the cutting assembly 3; after the cutting is completed, the feed drive assembly 2 drives the reversing drive assembly 1 to move in the reverse direction along the X axis to drive the second end of the battery 4 to exit the cutting area; at this point, the cutting operation of the shell of the cylindrical lithium battery has been completed.

[0103] In some embodiments, reference Figures 1 to 3 The fixed base 7 is provided with a limiting column 701; the shell cutting device also includes a limiting plate 8, which is connected to the reversing drive assembly 1 and is used to fix the battery 4; the limiting plate 8 is provided with a limiting groove 801, which is used to clamp the limiting column 701 along the feeding direction of the battery 4 when the battery 4 enters the cutting area toward one end of the cutting area.

[0104] Specifically, the limit plate 8 can be connected to the movable part or the fixed part of the reversing drive assembly 1; when the limit plate 8 is connected to the movable part of the reversing drive assembly 1, a positioning structure or a positioning fixture can be set on the limit plate 8, for example, the positioning seat 5 and the pressure block 6 in the above embodiment can be set to fix the battery 4 on the limit plate 8.

[0105] by Figure 1Taking the shown orientation as an example, the limit column 701 can be arranged below the cutting area, the extension direction of the limit column 701 is parallel to the Z axis, and the extension direction of the limit groove 801 is parallel to the X axis; when the feed drive assembly 2 drives the reversing drive assembly 1 to move in the positive direction of the X axis, thereby driving the first end of the battery 4 to enter the cutting area, the limit groove 801 can be radially clamped on the limit column 701 by the limit column 701 as the limit plate 8 moves; in this way, the limit column 701 can limit the movement of the limit plate 8 along the Y axis direction and limit the rotation of the limit plate 8 around the X axis by cooperating with the limit groove 801, thereby limiting some of the degrees of freedom of the reversing drive assembly 1 and the battery 4, avoiding the reversing drive assembly 1 and the battery 4 from position displacement or deflection due to vibration during the cutting process, thereby improving the positioning accuracy and cutting stability of the battery 4.

[0106] In some embodiments, reference Figures 1 to 3 The limit plate 8 is connected to the movable part of the reversing drive assembly 1; the limit plate 8 is provided with at least two limit grooves 801, and at least two limit grooves 801 correspond to each end of the battery 4 one by one. The limit groove 801 is used to clamp on the limit column 701 along the feeding direction of the battery 4 when the corresponding end of the battery 4 enters the cutting area.

[0107] The limit plate 8 in this embodiment is connected to the movable part of the reversing drive assembly 1. A positioning structure or a positioning fixture may be provided on the limit plate 8, for example, the positioning seat 5 and the pressing block 6 in the above embodiment may be provided to fix the battery 4 on the limit plate 8. Figure 1 Taking the orientation shown as an example, two limit grooves 801 are set corresponding to the number of ends of the cylindrical lithium battery, and the two limit grooves 801 are arranged on the opposite side edges of the limit plate 8 along the X-axis to form a bayonet structure on the opposite side edges of the limit plate 8; when the first end of the battery 4 is facing the cutting area, the limit groove 801 located below the first end of the battery 4 is facing the limit column 701, and the limit groove 801 is used to be connected to the limit column 701 when the first end of the battery 4 enters the cutting area; and when the battery 4 is driven by the reversing drive assembly 1 to rotate to the second end facing the cutting area, the limit groove 801 located below the second end of the battery 4 is also rotated to a position facing the limit column 701, and the limit groove 801 is used to be connected to the limit column 701 when the second end of the battery 4 enters the cutting area.

[0108] Based on the above arrangement, when cutting the shell at each end of the battery 4, the snap fit between the limiting groove 801 and the limiting column 701 can be utilized to limit some of the degrees of freedom of the battery 4, thereby preventing the battery 4 from being displaced or deflected due to vibration during the cutting process, thereby further improving the positioning accuracy and cutting stability of the battery 4.

[0109] In some embodiments, reference Figure 1 and Figure 2 , the limiting column 701 is cylindrical.

[0110] When the limiting column 701 is set to a cylindrical shape, the limiting groove 801 can be connected to the limiting column 701 in different directions, which to a certain extent avoids the situation where the limiting groove 801 cannot be smoothly connected to the limiting column 701 due to deviation in the feeding direction, thereby improving the fault tolerance of the shell cutting equipment.

[0111] In some embodiments, reference Figure 1 and Figure 2 The shell cutting device also includes a slider 9; the slider 9 is connected to the feed drive assembly 2, and the bottom wall of the slider 9 is slidably matched with the upper surface of the fixed base 7; the reversing drive assembly 1 is connected to the slider 9.

[0112] By setting the slider 9, the reversing drive component 1 can be supported so that the reversing drive component 1 can be slidably fitted on the upper surface of the fixed base 7; this can avoid the reversing drive component 1 and the battery 4 shaking due to the reversing drive component 1 being suspended and the movable part of the feed drive component 2 having an excessively long force arm during the feeding process, thereby improving the position stability of each component during the cutting process.

[0113] In some embodiments, reference Figure 1 and Figure 2 The shell cutting device also includes a guide bar 10; the guide bar 10 is arranged on the fixed base 7; the guide bar 10 has a guide surface (not shown in the figure), the guide surface extends along the driving direction of the feed drive assembly 2, and the side wall of the slider 9 is slidably matched on the guide surface.

[0114] By providing the guide strip 10, a limiting guiding function can be formed for the slider 9; Figure 2 As shown, the guide surface is the vertical side surface of the guide bar 10 facing the slider 9. Through the sliding cooperation between the guide surface and the side wall of the slider 9, the slider 9 and the reversing drive component 1 and the battery 4 on the slider 9 can be guided to move stably along the X-axis direction, avoiding the situation where the battery 4 deviates from the preset position due to the deviation of the driving direction of the feed drive component 2.

[0115] Preferably, there are two guide bars 10, which are arranged on both sides of the slider 9. A guide slide is formed between the two guide bars 10, which can limit the slider 9 to move forward and backward along the Y-axis, thereby achieving a better limiting effect and further ensuring the positioning accuracy of the battery 4.

[0116] In some embodiments, reference Figure 1 and Figure 2The guide strip 10 is provided with a buckle structure 1001 ; the buckle structure 1001 is used to abut against the side of the slider 9 facing away from the fixed base 7 to prevent the slider 9 from leaving the upper surface of the fixed base 7 upward.

[0117] Specifically, the reverse lock structure 1001 can be a protrusion extending laterally from the guide strip 10; the reverse lock structure 1001 can directly abut against the upper surface of the slider 9, or a recessed portion can be provided on the side of the slider 9, and the reverse lock structure 1001 can be snapped into the recessed portion to achieve the abutment between the reverse lock structure 1001 and the slider 9, which is not limited here.

[0118] like Figure 1 As shown, by setting the reverse buckle structure 1001, the slider 9 can be limited to move in the positive direction along the Z axis, thereby preventing the slider 9 from bouncing relative to the upper surface of the fixed base 7, thereby improving the movement stability of the reversing drive assembly 1 and the battery 4.

[0119] In some embodiments, reference Figure 1 and Figure 2 The slider 9 is provided with a connecting groove 901, and the connecting groove 901 penetrates the slider 9 in the vertical direction;

[0120] The feed drive assembly 2 includes a feed drive device 201 and an adapter block 202; the fixed portion of the feed drive device 201 is connected to the upper surface of the fixed base 7, the adapter block 202 is connected to the movable portion of the feed drive device 201, and the adapter block 202 is snapped into the connecting groove 901.

[0121] Specifically, the feed drive device 201 can be a cylinder, a linear module, a motor equipped with a transmission screw, etc. By providing a vertically penetrating connection groove 901 on the slider 9, the feed drive devices 201 of different heights can be adapted, so that the feed drive devices 201 of different heights can all be connected to the slider 9 through the adapter block 202, thereby improving the applicability of the shell cutting device.

[0122] In some embodiments, reference Figure 1 , Figure 2 and Figure 4 A collecting groove 702 is provided on the upper surface of the fixed base 7; the collecting groove 702 is located at at least one of the reversing drive assembly 1, the feed drive assembly 2, and the cutting assembly 3, and the collecting groove 702 is used to collect the electrolyte overflowed from the battery 4.

[0123] During the process of cutting the shell, electrolyte may flow out from the battery 4. The electrolyte is a strong acid chemical that is harmful to the human body and the environment. Based on this problem, the present embodiment provides a collecting groove 702 on the fixed base 7. The collecting groove 702 is concave relative to the upper surface of the fixed base 7, which can guide and collect the electrolyte overflowing to the fixed base 7 during the cutting process, so as to prevent the electrolyte from flowing to other areas and causing adverse effects on the human body, equipment and environment.

[0124] In some embodiments, reference Figure 1 , Figure 2 and Figure 4 The shell cutting device also includes a buffer container 11; the buffer container 11 is arranged below the fixed base 7; a guide channel (not shown in the figure) is opened in the collecting trough 702, and the guide channel is connected to the buffer container 11.

[0125] Due to the limited space on the upper surface of the fixed pedestal 7, when the amount of electrolyte overflow is large, the collecting tank 702 with a small capacity cannot collect a large amount of electrolyte in time. Based on this problem, the present embodiment sets a corresponding buffer container 11 below the fixed pedestal 7. The buffer container 11 has a large capacity and can be used to store a large amount of electrolyte; specifically, a plurality of diversion channels can be arranged at intervals in the collecting tank 702. After the electrolyte flows to the collecting tank 702 under the diversion effect of the collecting tank 702, the electrolyte can flow along the diversion channel to the buffer container 11 below for storage, thereby realizing the timely transfer of the electrolyte and avoiding the electrolyte from being accumulated on the upper surface of the fixed pedestal 7 for a long time and causing adverse effects on the human body, equipment and environment. Preferably, a pipeline and a valve assembly can be set on the buffer container 11. When the electrolyte in the buffer container 11 reaches a certain amount, the valve assembly can be opened so that the electrolyte can be discharged through the pipeline to the preset recovery area and recovered.

[0126] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting assembly 3 includes a cutting drive device 301 and a cutting knife group 302; the cutting knife group 302 is connected to the cutting drive device 301; the cutting drive device 301 is used to drive the cutting knife group 302 to rotate around the feeding direction of the battery 4 to perform a circular cut on the end of the battery 4 entering the cutting area.

[0127] The cutting drive device 301 can directly adopt a rotary drive device, such as a rotary cylinder, a rotary motor, etc.; the cutting drive device 301 can also adopt a linear drive device, and convert the linear motion into rotary motion through a transmission mechanism to realize the rotary drive of the cutting knife group 302. The cutting drive device 301 has a fixed part and a movable part. For example, the cutting drive device 301 adopts a rotary cylinder. The cylinder body of the rotary cylinder constitutes the fixed part of the cutting drive device 301, and the piston of the rotary cylinder constitutes the movable part of the cutting drive device 301. The fixed part of the cutting drive device 301 can be as shown in FIG. Figure 1 As shown, it is fixed to the upper surface of the fixed base 7 through a connecting base.

[0128] The cutting blade assembly 302 may include a blade and a matching blade mounting seat, wherein the blade mounting seat is used to realize the connection between the blade and the movable part of the cutting drive device 301; Figure 1 Taking the orientation shown as an example, the central axis of the battery 4 is parallel to the X-axis. Driven by the cutting drive device 301, the blade rotates around the central axis of the battery 4. The contact between the blade edge and the shell on the outer peripheral surface of the battery 4 can achieve circular cutting of the shell. Among them, the shortest straight-line distance between the blade edge and the central axis of the battery 4 is the first distance, and the difference between the first distance and the radius of the battery 4 is the circular cutting depth.

[0129] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting knife group 302 includes a connecting sleeve 3021 and a cutting blade 3022; the connecting sleeve 3021 is connected to the cutting drive device 301, and the inner cavity of the connecting sleeve 3021 constitutes a cutting area; at least a part of the cutting blade 3022 is arranged in the inner cavity of the connecting sleeve 3021.

[0130] By providing the connecting sleeve 3021, the shell cutting operation can be transferred to the internal space, thereby providing a relatively independent operating space for the shell cutting operation, avoiding interference of external factors on the cutting operation to a certain extent, and also avoiding adverse effects of the cutting operation on external devices or operators to a certain extent.

[0131] Specifically, Figure 1 and Figure 5As shown, the first side end of the connecting sleeve 3021 is connected to the movable part of the cutting drive device 301, and the second side end of the connecting sleeve 3021 is arranged toward the battery 4; the feed drive assembly 2 can drive the first end or the second end of the battery 4 to enter through the opening of the second side end of the connecting sleeve 3021, and move the battery 4 axially to a preset position in the inner cavity of the connecting sleeve 3021 until the cutting blade 3022 is opposite to the preset cutting position of the shell; then the connecting sleeve 3021 can be driven to rotate as a whole by the cutting drive device 301 to drive the cutting blade 3022 to rotate, so that the part of the cutting blade 3022 located in the inner cavity of the connecting sleeve 3021 can be used to perform circumcision on the shell.

[0132] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting knife assembly 302 further includes a positioning block 3023; the positioning block 3023 is disposed in the inner cavity of the connecting sleeve 3021; ​​the positioning block 3023 is used to abut against one end of the battery 4 entering the cutting area to prevent the battery 4 from continuing to feed.

[0133] By providing the positioning block 3023 , the battery 4 can be limited in the axial direction to avoid the battery 4 being fed too deep due to the driving error of the feeding driving assembly 2 , thereby improving the accuracy of the cutting position.

[0134] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The positioning stopper 3023 is slidably connected to the inner cavity of the connecting sleeve 3021 along the axial direction of the connecting sleeve 3021 .

[0135] Specifically, the positioning block 3023 can be connected to the inner cavity of the connecting sleeve 3021 by axial sliding with the help of a guide rail slider structure, so that the axial position of the positioning block 3023 can be conveniently adjusted according to the actual size of the battery 4 and the actual cutting requirements, thereby meeting the different axial limit requirements of the battery 4 and improving the applicability of the shell cutting equipment.

[0136] When the positioning block 3023 is moved axially to a position, the positioning block 3023 can be fixed at the current position by means of fasteners such as threaded fasteners, pins, and buckles.

[0137] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The inner wall of the connecting sleeve 3021 is provided with a first mounting plane (not shown in the figure), and the positioning stopper 3023 is attached to the first mounting plane.

[0138] By setting the first installation plane, it is easier to install the positioning block 3023, and the contact area can be increased by the fit between the plane on the positioning block 3023 and the first installation plane, thereby improving the connection stability of the positioning block 3023.

[0139] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting blade assembly 302 further includes an adjusting rod 3024; a first end of the adjusting rod 3024 is movably connected to the connecting sleeve 3021, and the cutting blade 3022 is connected to a second end of the adjusting rod 3024;

[0140] The connecting sleeve 3021 is provided with an avoidance channel, which is connected to the inner cavity of the connecting sleeve 3021 ; the adjusting rod 3024 is used to drive the cutting blade 3022 to pass through the avoidance channel to adjust the distance that the cutting blade 3022 enters the inner cavity of the connecting sleeve 3021 .

[0141] In this embodiment, by moving the adjustment rod 3024, the distance that the cutting blade 3022 extends into the inner cavity of the connecting sleeve 3021 can be conveniently adjusted, so that the cutting depth can be quickly adjusted according to the actual size of the battery 4 and the actual cutting requirements, thereby improving the applicability of the shell cutting device.

[0142] The first end of the adjusting rod 3024 can be slidably connected or hinged to the connecting sleeve 3021, which is not limited here. When the cutting blade 3022 is adjusted to the right position, the adjusting rod 3024 can be fixed to the connecting sleeve 3021 by means of fasteners such as threaded fasteners, pins, and buckles.

[0143] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The connecting sleeve 3021 is provided with an adjustment rail 30211 ; the first end of the adjustment rod 3024 is slidably connected to the adjustment rail 30211 along a first path, and the first path is parallel to the radial direction of the connecting sleeve 3021 .

[0144] In this embodiment, if Figure 5As shown, the outer cylinder wall of the connecting sleeve 3021 can be provided with a connecting plate protruding outward, and the adjusting guide rail 30211 can be arranged on the connecting plate, and the extending direction of the adjusting guide rail 30211 is parallel to the radial direction of the connecting sleeve 3021; ​​the adjusting rod 3024 can be arranged as an L-shaped structure having a transverse portion and a vertical portion, and the extending direction of the transverse portion is parallel to the extending direction of the adjusting guide rail 30211, and the first end of the transverse portion is connected to the first end of the vertical portion, and the second end of the transverse portion can be connected to the adjusting guide rail 30211 by sliding along a first path through the slider 9 structure, and the cutting blade 3022 is connected to the second end of the vertical portion. Based on the above arrangement, when the second end of the transverse portion slides on the adjusting guide rail 30211, the cutting blade 3022 can be driven to enter and exit the avoidance channel, so that the distance of the cutting blade 3022 entering the inner cavity of the connecting sleeve 3021 can be conveniently adjusted, thereby realizing the rapid adjustment of the cutting depth.

[0145] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting knife group 302 also includes an adjusting drive device (not shown in the figure); the fixed part of the adjusting drive device is arranged on the connecting sleeve 3021, and the movable part of the adjusting drive device is connected to the adjusting rod 3024, and the adjusting drive device is used to drive the adjusting rod 3024 to slide relative to the adjusting guide rail 30211 along the first path.

[0146] Specifically, the adjustment drive device can adopt a rotary drive device, a linear drive device and a matching transmission mechanism; in practical applications, it only needs to ensure that when the adjustment drive device drives the adjustment rod 3024, it can drive the cutting blade 3022 through the avoidance channel into or away from the inner cavity of the connecting sleeve 3021, and the specific form of the adjustment drive device is not limited.

[0147] By setting up the adjustment drive device, the position of the cutting blade 3022 can be adjusted quickly and conveniently without manual operation, and after the adjustment is completed, the cutting blade 3022 does not need to be fixed at the current position with the help of other fasteners. For example, after either end of the battery 4 enters the inner cavity of the connecting sleeve 3021, the adjustment drive device can drive the cutting blade 3022 to withdraw from the inner cavity of the connecting sleeve 3021 to avoid the cutting blade 3022 blocking the battery 4 that is still in the feeding state; when the battery 4 is fed into place, the adjustment drive device drives the cutting blade 3022 to enter the inner cavity of the connecting sleeve 3021 until the cutting edge of the cutting blade 3022 contacts the shell of the battery 4, at which time the connecting sleeve 3021 and the cutting blade 3022 can be driven to rotate by the cutting drive device 301 to perform circumcision on the shell.

[0148] Based on the above arrangement, the time for adjusting the cutting blade 3022 can be greatly shortened, thereby improving the disassembly efficiency of the battery 4, and the drive adjustment method by adjusting the drive device is more accurate than the manual adjustment method, thereby improving the accuracy of the cutting position.

[0149] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The cutting knife group 302 also includes a knife seat 3025; the knife seat 3025 is installed on the outer cylinder wall of the connecting sleeve 3021; ​​the knife seat 3025 is provided with a knife groove 30251, the knife groove 30251 is opposite to the avoidance channel, and the cutting blade 3022 is slidably matched in the knife groove 30251.

[0150] In the actual production process, the knife seat 3025 can be produced in conjunction with the cutting blade 3022, so that the knife groove 30251 in the knife seat 3025 is highly compatible with the cutting blade 3022. In the process of driving the cutting blade 3022 to move by the adjustment rod 3024 to adjust the cutting depth, and in the process of cutting the shell, the knife groove 30251 can form a correction and limit effect on the cutting blade 3022, thereby ensuring the position accuracy and stability of the cutting blade 3022, thereby improving the cutting quality.

[0151] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The outer wall of the connecting sleeve 3021 is provided with a second mounting plane 30212 , and the knife seat 3025 is attached to the second mounting plane 30212 .

[0152] By providing the second installation plane 30212 , it is easier to install the tool holder 3025 , and the contact area can be increased by the fit between the plane on the tool holder 3025 and the second installation plane 30212 , thereby improving the connection stability of the tool holder 3025 .

[0153] In some embodiments, reference Figure 1 , Figure 5 and Figure 6 The connecting sleeve 3021 is provided with a wire passing window 30213 , and the wire passing window 30213 is communicated with the inner cavity of the connecting sleeve 3021 .

[0154] The wire passing window 30213 can be used for the cables in the shell cutting device to pass through, so that the cables can be better arranged and sorted; in addition, the wire passing window 30213 also plays a role in reducing the weight of the connecting sleeve 3021, which is more conducive to the lightweight development of the shell cutting device.

[0155] In some embodiments, reference Figure 1The shell cutting device also includes a protective cover (not shown in the figure), which covers the reversing drive component 1, the feed drive component 2 and the cutting component 3.

[0156] By setting up the protective cover, on the one hand, the corresponding components of the shell cutting equipment can be enclosed and protected to prevent external factors from causing adverse effects on the normal operation of the components; on the other hand, it can protect the operators to avoid personal injuries to the operators due to accidents such as battery explosion during the disassembly of the battery 4.

[0157] In some embodiments, reference Figure 1 The shell cutting equipment also includes a fresh air device (not shown in the figure); the fresh air device is installed on the protective cover, and the fresh air device is used to discharge the gas inside the protective cover to the outside.

[0158] During the process of cutting the shell, the battery 4 may overflow with electrolyte, and the overflowed electrolyte will form volatile substances. By setting up a fresh air device, the volatile substances in the electrolyte can be discharged to the outside of the protective cover in time, thereby achieving an exhaust purification effect and avoiding the accumulation of volatile substances in the electrolyte and causing adverse effects.

[0159] It should be noted that other contents of the shell cutting device disclosed in the present application can be found in the prior art and will not be described in detail here.

[0160] The above are only optional embodiments of the present application, and do not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A shell cutting device, characterized in that: The shell cutting equipment comprises: A reversing drive assembly, the reversing drive assembly is used to drive the battery to rotate so that one end of the battery faces the cutting area; A feed drive assembly, the feed drive assembly being connected to the reversing drive assembly; the feed drive assembly being used to drive the reversing drive assembly to move so as to drive the battery to enter or leave the cutting area toward one end of the cutting area; A cutting assembly is used to cut the battery shell that enters the cutting area.

2. The shell cutting device according to claim 1, characterized in that: The shell cutting device further comprises a positioning seat; the positioning seat is connected to the reversing drive assembly, and the positioning seat is provided with a receiving groove, and the receiving groove is used for clamping and fixing the battery.

3. The shell cutting device according to claim 2, characterized in that: The shell cutting device further comprises a pressing block; the pressing block is detachably connected to the positioning seat, and the pressing block is used to press the battery into the containing groove.

4. The shell cutting device according to claim 3, characterized in that: A contoured groove is formed on one side of the pressing block facing the positioning seat, and the contoured groove is used to accommodate the battery and fit with the battery.

5. The shell cutting device according to claim 1, characterized in that: The shell cutting device also includes a fixed base; the reversing drive assembly and the cutting assembly are arranged on the fixed base.

6. The shell cutting device according to claim 5, characterized in that: The fixed base is provided with a limiting column; the shell cutting device also includes a limiting plate, which is connected to the reversing drive assembly and is used to fix the battery; the limiting plate is provided with a limiting groove, and the limiting groove is used to be clamped on the limiting column along the feeding direction of the battery when the battery enters the cutting area toward one end of the cutting area.

7. The shell cutting device according to claim 6, characterized in that: The limit plate is connected to the movable part of the reversing drive assembly; the limit plate is provided with at least two limit grooves, at least two of which correspond to each end of the battery, and the limit groove is used to clamp onto the limit column along the feeding direction of the battery when the corresponding end of the battery enters the cutting area.

8. The shell cutting device according to claim 6, characterized in that: The limiting column is cylindrical.

9. The shell cutting device according to claim 5, characterized in that: The shell cutting device also includes a slider; the slider is connected to the feed drive assembly, and the bottom wall of the slider is slidably matched with the upper surface of the fixed base; the reversing drive assembly is connected to the slider.

10. The shell cutting device according to claim 9, characterized in that: The shell cutting device further comprises a guide bar, which is arranged on the fixed pedestal, and has a guide surface, which extends along the driving direction of the feed drive assembly, and the side wall of the slide block is slidably matched on the guide surface.

11. The shell cutting device according to claim 10, characterized in that: The guide strip is provided with a buckle structure; the buckle structure is used to abut against the side of the slider facing away from the fixed base to prevent the slider from leaving the upper surface of the fixed base upwards.

12. The shell cutting device according to claim 9, characterized in that: The slider is provided with a connecting groove, and the connecting groove passes through the slider in a vertical direction; The feed drive assembly includes a feed drive device and an adapter block; the fixed portion of the feed drive device is connected to the upper surface of the fixed base, the adapter block is connected to the movable portion of the feed drive device, and the adapter block is snap-fitted into the connecting groove.

13. The shell cutting device according to claim 5, characterized in that: A collecting groove is provided on the upper surface of the fixed base; the collecting groove is located at at least one of the reversing drive assembly, the feed drive assembly, and the cutting assembly, and the collecting groove is used to collect electrolyte overflowed from the battery.

14. The shell cutting device according to claim 13, characterized in that: The shell cutting device further comprises a buffer container; the buffer container is arranged below the fixed base; a flow guiding channel is opened in the collecting trough, and the flow guiding channel is communicated with the buffer container.

15. The shell cutting device according to claim 1, characterized in that: The cutting assembly includes a cutting drive device and a cutting knife group; the cutting knife group is connected to the cutting drive device; the cutting drive device is used to drive the cutting knife group to rotate around the feeding direction of the battery to perform circular cutting on the end of the battery entering the cutting area.

16. The shell cutting device according to claim 15, characterized in that: The cutting knife assembly comprises a connecting sleeve and a cutting blade; the connecting sleeve is connected to the cutting drive device, and the inner cavity of the connecting sleeve constitutes the cutting area; at least a part of the cutting blade is arranged in the inner cavity of the connecting sleeve.

17. The shell cutting device according to claim 16, characterized in that: The cutting knife assembly further comprises a positioning block; the positioning block is arranged in the inner cavity of the connecting sleeve; the positioning block is used to abut against one end of the battery entering the cutting area to prevent the battery from continuing to feed.

18. The shell cutting device according to claim 17, characterized in that: The positioning stopper is slidably connected in the inner cavity of the connecting sleeve along the axial direction of the connecting sleeve.

19. The shell cutting device according to claim 18, characterized in that: The inner cylinder wall of the connecting sleeve is provided with a first mounting plane, and the positioning stopper is attached to the first mounting plane.

20. The shell cutting device according to claim 16, characterized in that: The cutting blade assembly further comprises an adjusting rod; a first end of the adjusting rod is movably connected to the connecting sleeve, and the cutting blade is connected to a second end of the adjusting rod; The connecting sleeve is provided with an avoidance channel, and the avoidance channel is communicated with the inner cavity of the connecting sleeve; the adjusting rod is used to drive the cutting blade to pass through the avoidance channel to adjust the distance that the cutting blade enters the inner cavity of the connecting sleeve.

21. The shell cutting device according to claim 20, characterized in that: The connecting sleeve is provided with an adjusting guide rail; the first end of the adjusting rod is slidably connected to the adjusting guide rail along a first path, and the first path is parallel to the radial direction of the connecting sleeve.

22. The shell cutting device according to claim 21, characterized in that: The cutting knife assembly also includes an adjustment drive device; the fixed portion of the adjustment drive device is arranged on the connecting sleeve, the movable portion of the adjustment drive device is connected to the adjustment rod, and the adjustment drive device is used to drive the adjustment rod to slide relative to the adjustment guide rail along the first path.

23. The shell cutting device according to claim 20, characterized in that: The cutting knife assembly also includes a knife seat; the knife seat is installed on the outer cylinder wall of the connecting sleeve; the knife seat is provided with a knife groove, the knife groove is opposite to the avoidance channel, and the cutting blade is slidably matched in the knife groove.

24. The shell cutting device according to claim 23, characterized in that: The outer wall of the connecting sleeve is provided with a second mounting plane, and the knife seat is attached to the second mounting plane.

25. The shell cutting device according to claim 16, characterized in that: The connecting sleeve is provided with a wire passing window, and the wire passing window is communicated with the inner cavity of the connecting sleeve.

26. The shell cutting device according to any one of claims 1 to 25, characterized in that: The shell cutting device further comprises a protective cover, which covers the reversing drive assembly, the feeding drive assembly and the cutting assembly.

27. The shell cutting device according to claim 26, characterized in that: The shell cutting device also includes a fresh air device; the fresh air device is installed on the protective cover, and the fresh air device is used to discharge the gas inside the protective cover to the outside.

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