Disassembling and recycling device for lithium battery pack of new energy automobile

Abstract

The invention relates to the field of lithium battery recycling, in particular to a new energy automobile lithium battery pack disassembling and recycling device which comprises a disassembling table, a bottom frame and a top frame are arranged on the disassembling table, a first horizontal conveying panel and a second horizontal conveying panel are installed on the bottom frame, and a first positioning block and a second positioning block are arranged at the two ends of the first conveying panel correspondingly. A third positioning block is arranged on the second conveying panel, two first linear sliding tables are installed on the bottom frame, two second linear sliding tables are installed on the top frame, elastic clamping units are installed at the working ends of the first linear sliding tables and the working ends of the second linear sliding tables, and a cutting tool is arranged on each elastic clamping unit. According to the embodiment, the first linear sliding table and the second linear sliding table drive the elastic clamping unit to clamp the battery pack to move, when the battery pack continues to move after being attached to the second positioning block and the third positioning block, and the elastic clamping unit moves relative to the battery pack, the cutting tool cuts a shell of the battery pack, and time consumed for disassembling and recycling the lithium battery pack is shortened.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery recycling, and particularly to a disassembly and recycling device for a lithium battery pack of a new energy vehicle. Background Art

[0002] With the continuous increase in the proportion of new energy vehicle sales, the number of future discarded lithium batteries will be extremely astonishing. Since a large number of used lithium batteries will cause long-term pollution to the environment if not properly treated, and the lithium rich in lithium batteries is also an important raw material for the production of lithium ion batteries, with great recycling value. Therefore, recycling and reusing lithium resources in used lithium batteries has become an important research topic in the fields of environment and energy.

[0003] In the past, during recycling and disassembly, workers needed to manually open the outer shell of the lithium battery pack, and then take out the electrode plates inside the outer shell. The disassembled outer shell needed to be broken, so it was of little significance to consume labor to disassemble the outer shell of the lithium battery pack, and the disassembly and recycling of the lithium battery pack was time-consuming. Summary of the Invention

[0004] In view of the above problems, it is necessary to provide a disassembly and recycling device for a lithium battery pack of a new energy vehicle in view of the problems of the prior art.

[0005] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0006] A disassembly and recycling device for a lithium battery pack of a new energy vehicle, including a disassembly table, on which a bottom frame and a top frame are provided. A horizontal first conveying panel is installed on the bottom frame. A second conveying panel at the same height as the first conveying panel is provided on one side of the first conveying panel. A first positioning block and a second positioning block are respectively provided at both ends of the first conveying panel. A third positioning block is provided on the side of the second conveying panel away from the first conveying panel. Two first linear slides are installed on the bottom frame, and the working ends of the first linear slides are located on both sides of the first conveying panel and horizontally move along the length direction of the first conveying panel. Two second linear slides are installed on the top frame, and the working ends of the second linear slides are located on both sides of the second conveying panel and horizontally move along the width direction of the first conveying panel. Elastic clamping units are installed on the working ends of the first linear slides and the second linear slides. The elastic clamping unit on the first linear slide clamps the battery pack placed on the first conveying panel and moves from the first positioning block towards the second positioning block. The elastic clamping unit on the second linear slide clamps the battery pack attached to the second positioning block and moves towards the third positioning block. A cutting tool is provided on each elastic clamping unit. After the first linear slide and the second linear slide drive the elastic clamping unit to clamp the battery pack and attach it to the second positioning block and the third positioning block, they continue to move. When the elastic clamping unit moves relative to the battery pack, the cutting tool cuts the outer shell of the battery pack.

[0007] Preferably, the elastic clamping unit includes a base for being mounted on the working ends of the first linear slide and the second linear slide. A first linear drive is provided on the base. A lifting seat is mounted on the working end of the first linear drive. The first linear drive drives the lifting seat to move in the vertical direction. A second linear drive is provided on the lifting seat. A moving seat is fixedly mounted on the working end of the second linear drive. The second linear drive on the first linear slide drives the moving seat to move horizontally along the width direction of the first conveying panel, and the second linear drive on the second linear slide drives the moving seat to move horizontally along the length direction of the first conveying panel; on one side of the two moving seats facing each other, there is an insertion rod extending along the moving direction of itself. A limiting seat is provided at one end of the insertion rod away from the moving seat. A spring and a sleeve box are sleeved on the insertion rod. The spring elastically connects the moving seat and the sleeve box, and the elastic force of the spring makes the sleeve box fit against the limiting seat; a clamping block in the shape of "L" is fixedly mounted on the sleeve box. The clamping block is located on the side of the sleeve box facing the elastic clamping unit, and the clamping block is used to fit against both sides of the battery pack housing.

[0008] Preferably, the cutting tool is mounted on the limiting seat. The cutting tool includes a cutter head rotatably mounted on the limiting seat and a rotary drive fixedly mounted on the limiting seat. The rotary drive drives the cutter head to rotate; the axis of the cutter head is vertically arranged, and the cutter head is located at one end of the limiting seat away from the insertion rod.

[0009] Preferably, the insertion rod is inserted into an insertion hole provided on the sleeve box. The inner diameter of the insertion hole is equal to the outer diameter of the insertion rod. A plurality of spline grooves extending along the axial direction of the insertion rod are provided on the outer wall of the insertion rod. A number of clamping strips equal to the number of spline grooves are provided on the inner wall of the insertion hole. The sleeve box and the insertion rod are connected by splines through the spline grooves, the insertion hole and the clamping strips.

[0010] Preferably, when the sleeve box fits against the limiting seat under the elastic force of the spring, the cutter head is located on the side of the clamping block close to the moving seat and does not contact the battery pack housing; an installation box is fixedly mounted on the side of the sleeve box facing the moving seat. A first distance measuring sensor is fixedly mounted on the side of the installation box facing the moving seat. The working end of the first distance measuring sensor faces the side of the moving seat. A detection plate is fixedly mounted on the limiting seat. The detection plate extends radially along the insertion hole and passes through an avoidance hole provided on the clamping block and extends in front of the working end of the first distance measuring sensor. The first distance measuring sensor detects the change in the distance between the detection plate and the first distance measuring sensor. The first distance measuring sensor is signal-connected to the second linear drive through a controller.

[0011] Preferably, first guide sleeves extending vertically are provided on both sides of the base where the first linear drive is located. First guide rods equal in number to the first guide sleeves are provided on the side of the lifting seat facing the base. The first guide rods are inserted into the first guide sleeves.

[0012] Preferably, several second guide rods extending horizontally along the axial direction of the insertion rod are provided on one side of the moving seat facing the lifting seat, and the same number of second guide sleeves as the second guide rods are provided on the lifting seat, and the second guide rods are inserted into the second guide sleeves.

[0013] Preferably, a second distance measuring sensor is provided on the clamping block of at least one elastic clamping unit on the first linear slide table and the second linear slide table. The second distance measuring sensor is signal-connected to the first linear drive through a controller. The second distance measuring sensor is located on the side of the clamping block facing the moving seat, and the working end of the second distance measuring sensor faces the first conveying panel and is kept flush with the cutter head.

[0014] Preferably, an operation panel is further provided on one side of the first conveying panel where the second conveying panel is provided, and a pushing unit is provided on the side of the second conveying panel away from the operation panel. The pushing unit pushes the battery pack attached to the third positioning block towards the operation panel.

[0015] Preferably, the pushing unit includes a third linear drive fixedly installed on the chassis, the working end of the third linear drive faces the operation panel, and a push plate is provided on the working end of the third linear drive. The push plate is located on the side of the third positioning block close to the first conveying panel.

[0016] The beneficial effects of the present invention compared with the prior art are as follows:

[0017] First, through the cooperation of the first linear slide table and the second linear slide table, the present invention realizes the automatic positioning and movement of the lithium battery pack, and can drive the cutting tool to cut the battery pack housing. Compared with the previous method of manually opening the lithium battery pack housing by workers, it greatly saves manpower and time, improves the disassembly efficiency, and reduces the time-consuming of the disassembly and recycling of the lithium battery pack.

[0018] Second, the present invention realizes the height adjustment in the vertical direction through the first linear drive, and the position adjustment in the horizontal direction through the second linear drive. Combined with the elastic structure of the spring and the sleeve box, the elastic clamping unit can effectively clamp and fix the battery pack housings with different heights, lengths and widths.

[0019] Third, by detecting the change in the distance between the detection plate and itself through the first distance measuring sensor, the present invention can automatically adjust the cutting depth of the cutter head according to the thickness of the battery pack housing, ensuring that the cutter head always cuts into the battery pack housing at an appropriate depth during the cutting process, avoiding the situation that the housing cannot be completely cut due to too shallow cutting or the internal components of the battery pack being damaged due to too deep cutting, thereby improving the cutting quality and the effect of disassembly and recycling. Description of the Drawings

[0020] Figure 1 is a three-dimensional of a disassembly and recycling device for new energy vehicle lithium battery packsFigure 1 ;

[0021] Figure 2 is Figure 1 The partial enlarged view of part A in

[0022] Figure 3 The three-dimensional Figure 2 ;

[0023] Figure 4 is Figure 3 The partial enlarged view of part B in

[0024] Figure 5 is Figure 3 The partial enlarged view of part C in

[0025] Figure 6 The three-dimensional view of the elastic clamping unit of a new energy vehicle lithium battery pack disassembly and recycling device;

[0026] Figure 7 The three-dimensional structural decomposition view of the elastic clamping unit of a new energy vehicle lithium battery pack disassembly and recycling device;

[0027] Figure 8 The three-dimensional view of a new energy vehicle lithium battery pack disassembly and recycling device in the first working state;

[0028] Figure 9 The front view of a new energy vehicle lithium battery pack disassembly and recycling device in the second working state;

[0029] Figure 10 The front view of a new energy vehicle lithium battery pack disassembly and recycling device in the third working state;

[0030] Figure 11 The three-dimensional view of a new energy vehicle lithium battery pack disassembly and recycling device in the fourth working state.

[0031] The reference numerals in the figure are: 1, disassembly table; 11, chassis; 111, first linear slide; 12, top frame; 121, second linear slide; 13, first conveying panel; 131, first positioning block; 132, second positioning block; 14, second conveying panel; 141, third positioning block; 15, operation panel; 16, pushing unit; 161, third linear driver; 162, pushing plate; 2, elastic clamping unit; 21, base; 211, first linear driver; 212, first guide sleeve; 22, lifting seat; 221, second linear driver; 222, first guide rod; 223, second guide sleeve; 23, moving seat; 231, insertion rod; 232, limit seat; 233, spring; 234, spline groove; 235, detection plate; 236, second guide rod; 24, sleeve box; 241, clamping block; 242, insertion hole; 243, clamping strip; 244, mounting box; 245, first distance measuring sensor; 246, second distance measuring sensor; 3, cutting tool; 31, cutter head; 32, rotary driver. Detailed implementation manners

[0032] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0033] Refer to Figures 1 to 11 :

[0034] A disassembly and recycling device for a lithium battery pack of a new energy vehicle, comprising a disassembly table 1. On the disassembly table 1, there are a bottom frame 11 and a top frame 12. A horizontal first conveying panel 13 is installed on the bottom frame 11. On one side of the first conveying panel 13, there is a second conveying panel 14 at the same height as the first conveying panel 13. At both ends of the first conveying panel 13, there are a first positioning block 131 and a second positioning block 132 respectively. On the side of the second conveying panel 14 away from the first conveying panel 13, there is a third positioning block 141. Two first linear slides 111 are installed on the bottom frame 11. The working ends of the first linear slides 111 are located on both sides of the first conveying panel 13 and move horizontally along the length direction of the first conveying panel 13. Two second linear slides 121 are installed on the top frame 12. The working ends of the second linear slides 121 are located on both sides of the second conveying panel 14 and move horizontally along the width direction of the first conveying panel 13. Elastic clamping units 2 are installed on the working ends of the first linear slides 111 and the second linear slides 121. The elastic clamping unit 2 on the first linear slide 111 clamps the battery pack placed on the first conveying panel 13 and moves it from the first positioning block 131 towards the second positioning block 132. The elastic clamping unit 2 on the second linear slide 121 clamps the battery pack attached to the second positioning block 132 and moves it towards the third positioning block 141. A cutting tool 3 is provided on each elastic clamping unit 2. After the first linear slide 111 and the second linear slide 121 drive the elastic clamping unit 2 to clamp the battery pack and fit it to the second positioning block 132 and the third positioning block 141, they continue to move. When the elastic clamping unit 2 moves relative to the battery pack, the cutting tool 3 cuts the outer shell of the battery pack.

[0035] When this application is in use, the staff places the lithium battery pack to be disassembled on the first conveying panel 13, and one end of the battery pack is fitted to the first positioning block 131, at which point the initial positioning of the battery pack is completed. The two first linear slides 111 on the chassis 11 start to work, and the elastic clamping unit 2 on their working ends clamps the battery pack placed on the first conveying panel 13, and then drives the battery pack to move horizontally from the first positioning block 131 towards the second positioning block 132 until the battery pack fits against the second positioning block 132. After the first linear slide 111 drives the elastic clamping unit 2 to clamp the battery pack against the second positioning block 132, the battery pack stops moving, and the first linear slide 111 drives the elastic clamping unit 2 to move relative to the battery pack. At this time, the cutting tool 3 provided on the elastic clamping unit 2 cuts the outer shell of the battery pack. In this way, the cutting operation on both sides of the battery pack outer shell is completed. Subsequently, the first linear slide 111 drives the elastic clamping unit 2 to reset, and the two second linear slides 121 on the top frame 12 are activated. The elastic clamping unit 2 on their working ends fits against the uncut sides of the battery pack and then moves horizontally towards the third positioning block 141 to further position and adjust the movement of the battery pack. After the second linear slide 121 drives the elastic clamping unit 2 to clamp the battery pack against the third positioning block 141, the battery pack stops moving, and the second linear slide 121 drives the elastic clamping unit 2 to move relative to the battery pack. At this time, the cutting tool 3 provided on the elastic clamping unit 2 cuts the other two sides of the battery pack outer shell. After the cutting operation on the battery pack outer shell is completed, the staff removes the top cover of the cut outer shell, further removes and processes components such as the electrode plates inside the battery pack, and simultaneously performs subsequent recycling operations such as crushing the cut outer shell. Through the cooperation of the first linear slide 111 and the second linear slide 121 in this embodiment, the automatic positioning and movement of the lithium battery pack are realized, and the cutting tool 3 can be driven to cut the outer shell of the battery pack. Compared with the previous method of manually opening the outer shell of the lithium battery pack by workers, it greatly saves manpower and time, improves the disassembly efficiency, and reduces the time-consuming of the disassembly and recycling of the lithium battery pack.

[0036] To solve the problem of how the elastic clamping unit 2 clamps and fixes the outer shells of battery packs with different sizes, the following features are specifically set:

[0037] The elastic clamping unit 2 includes a base 21 for mounting on the working ends of the first linear slide 111 and the second linear slide 121. A first linear drive 211 is provided on the base 21. A lifting seat 22 is mounted on the working end of the first linear drive 211. The first linear drive 211 drives the lifting seat 22 to move in the vertical direction. A second linear drive 221 is provided on the lifting seat 22. A moving seat 23 is fixedly mounted on the working end of the second linear drive 221. The second linear drive 221 on the first linear slide 111 drives the moving seat 23 to move horizontally in the width direction of the first conveying panel 13. The second linear drive 221 on the second linear slide 121 drives the moving seat 23 to move horizontally in the length direction of the first conveying panel 13. On one side of the two moving seats 23 facing each other, there is an insertion rod 231 extending along its moving direction. A limit seat 232 is provided at one end of the insertion rod 231 away from the moving seat 23. A spring 233 and a sleeve box 24 are sleeved on the insertion rod 231. The spring 233 elastically connects the moving seat 23 and the sleeve box 24. The elastic force of the spring 233 makes the sleeve box 24 fit against the limit seat 232. An "L"-shaped clamping block 241 is fixedly mounted on the sleeve box 24. The clamping block 241 is located on the side of the sleeve box 24 facing the elastic clamping unit 2. The clamping block 241 is used to fit against both sides of the battery pack housing.

[0038] When the lithium battery pack to be disassembled is placed on the first conveying panel 13 or in the corresponding position, the first linear drive 211 on the base 21 is started. Its working end drives the lifting seat 22 to move in the vertical direction, adjusting the moving seat 23, the second linear drive 221, and the clamping block 241 of the elastic clamping unit 2 to a suitable height to find a suitable cutting position on battery packs of different height dimensions. Subsequently, the second linear drive 221 on the lifting seat 22 is started. Its working end drives the moving seat 23 to move horizontally along the battery pack housing. During the process of the moving seat 23 moving towards the battery pack, the "L"-shaped clamping block 241 on the sleeve box 24 first contacts both sides of the battery pack housing. As the moving seat 23 continues to approach the battery pack, the clamping block 241 is resisted by the battery pack housing, and the sleeve box 24 will compress the spring 233, causing the spring 233 to undergo elastic deformation, thereby realizing the elastic clamping of battery packs of different sizes and ensuring that the battery pack can be firmly fixed. In this embodiment, the first linear drive 211 realizes the height adjustment in the vertical direction, and the second linear drive 221 realizes the position adjustment in the horizontal direction. Combined with the elastic structure of the spring 233 and the sleeve box 24, the elastic clamping unit 2 can effectively clamp and fix the battery pack housings of different heights, lengths, and widths, improving the versatility and applicability of the device. The first linear drive 211 and the second linear drive 221 can be cylinders, oil cylinders, electric push rods, etc.

[0039] To solve the problem of how the cutting tool 3 cuts the battery pack housing, the following features are specifically set:

[0040] The cutting tool 3 is installed on the limit seat 232. The cutting tool 3 includes a cutter head 31 rotatably installed on the limit seat 232 and a rotary drive 32 fixedly installed on the limit seat 232. The rotary drive 32 drives the cutter head 31 to rotate. The axis of the cutter head 31 is vertically arranged, and the cutter head 31 is located at one end of the limit seat 232 away from the insertion rod 231.

[0041] In this embodiment, during the process of the moving seat 23 moving towards the battery pack, the "L"-shaped clamping blocks 241 on the sleeve box 24 first come into contact with both sides of the battery pack housing. As the moving seat 23 continues to approach the battery pack, the clamping blocks 241 stop moving due to the resistance of the battery pack housing. The moving seat 23 compresses the spring 233 to move the limit seat 232 on the insertion rod 231 towards the battery pack until the cutter head 31 installed on the limit seat 232 reaches the cutting position. When the first linear slide 111 and the second linear slide 121 drive the elastic clamping unit 2 to drive the battery pack to a suitable position and are ready to perform cutting (as Figure 8 shown), the rotary drive 32 fixedly installed on the limit seat 232 starts to work. The rotary drive 32 can be a servo motor or the like. The rotary drive 32 outputs power to drive the cutter head 31 to start rotating around its vertical axis. As the cutter head 31 rotates at a high speed, the first linear slide 111 and the second linear slide 121 continue to drive the elastic clamping unit 2 to move relative to the battery pack, and the cutter head 31 will contact the battery pack housing and cut the battery pack housing with its sharp blade. As the elastic clamping unit 2 completely passes by the battery pack housing, the cutting task of a specific part of the battery pack housing can be completed.

[0042] In order to ensure that the axis of the cutter head 31 is always vertical so as to ensure that the cutter head 31 cuts horizontally, the following features are specifically set:

[0043] The insertion rod 231 is inserted into an insertion hole 242 provided on the sleeve box 24. The inner diameter of the insertion hole 242 is equal to the outer diameter of the insertion rod 231. A plurality of spline grooves 234 extending along the axial direction of the insertion rod 231 are provided on the outer wall of the insertion rod 231. A number of clamping bars 243 equal to the number of spline grooves 234 are provided on the inner wall of the insertion hole 242. The sleeve box 24 and the insertion rod 231 are connected by splines through the spline grooves 234, the insertion hole 242 and the clamping bars 243.

[0044] In this embodiment, the insertion rod 231 is inserted into the insertion hole 242 of the sleeve box 24. The spline groove 234 on the outer wall of the insertion rod 231 cooperates with the clamping strip 243 on the inner wall of the insertion hole 242, ensuring that the relative movement between the two can only occur along the axial direction of the insertion rod 231 and there is no relative rotation. This keeps the axis of the cutter head 31 mounted on the limit seat 232 always vertical, thus ensuring that the cutter head 31 can cut the battery pack housing in a horizontal posture, improving the cutting accuracy and quality.

[0045] To achieve the purpose of adjusting the cutting depth of the cutter head 31 for battery pack housings of different thicknesses, the following features are specifically set:

[0046] When the sleeve box 24 fits against the limit seat 232 under the elastic force of the spring 233, the cutter head 31 is located on the side of the clamping block 241 close to the moving seat 23 and does not contact the battery pack housing; a mounting box 244 is fixedly installed on the side of the sleeve box 24 facing the moving seat 23, and a first distance measuring sensor 245 is fixedly installed on the side of the mounting box 244 facing the moving seat 23. The working end of the first distance measuring sensor 245 is arranged towards the moving seat 23. A detection plate 235 is fixedly installed on the limit seat 232. The detection plate 235 extends radially along the insertion hole 242 and passes through the avoidance hole provided on the clamping block 241 and extends in front of the working end of the first distance measuring sensor 245. The first distance measuring sensor 245 detects the change in the distance between the detection plate 235 and the first distance measuring sensor 245, and the first distance measuring sensor 245 is signal-connected to the second linear actuator 221 through a controller.

[0047] In this embodiment, when no operation is performed on the battery pack, the sleeve box 24 fits against the limit seat 232 under the elastic force of the spring 233. At this time, the cutter head 31 is located on the side of the clamping block 241 close to the moving seat 23 and does not contact the outer shell of the battery pack. After the clamping block 241 contacts the outer shell of the battery pack, the moving seat 23 will compress the spring 233, causing the limit seat 232 equipped with the cutter head 31 to move along the insertion rod 231 towards the battery pack. As the limit seat 232 moves, the detection plate 235 mounted on the limit seat 232 also moves accordingly, while the mounting box 244 and the first distance measuring sensor 245 on the sleeve box 24 are fixed to the sleeve box 24 and remain stationary. At this time, the first distance measuring sensor 245 detects a change in the distance between the detection plate 235 and itself. The first distance measuring sensor 245 transmits the detected distance change signal to the controller. The controller analyzes the relationship between the distance change and the thickness of the outer shell of the battery pack according to the preset program and algorithm, calculates the cutting depth of the cutter head 31, and then sends a control signal to the second linear driver 221. The second linear driver 221 performs corresponding actions according to the received signal, thereby adjusting the position of the elastic clamping unit 2, and further changing the position of the cutter head 31 relative to the outer shell of the battery pack, so as to realize the adjustment of the cutting depth of the cutter head 31. In this embodiment, by detecting the change in the distance between the detection plate 235 and itself with the first distance measuring sensor 245, the cutting depth of the cutter head 31 can be automatically adjusted according to the thickness of the outer shell of the battery pack, ensuring that the cutter head 31 always cuts into the outer shell of the battery pack at an appropriate depth during the cutting process, avoiding the situation that the outer shell cannot be completely cut due to too shallow cutting or damaging the internal components of the battery pack due to too deep cutting, thereby improving the cutting quality and the effect of disassembly and recycling.

[0048] In order to ensure the stability of the lifting seat 22 and the moving seat 23 during movement, the following features are specifically set:

[0049] On both sides of the first linear driver 211, the base 21 is provided with vertically extending first guide sleeves 212. On the side of the lifting seat 22 facing the base 21, there are first guide rods 222 with the same number as the first guide sleeves 212, and the first guide rods 222 are inserted into the first guide sleeves 212.

[0050] On the side of the moving seat 23 facing the lifting seat 22, there are several second guide rods 236 horizontally extending along the axis of the insertion rod 231. On the lifting seat 22, there are second guide sleeves 223 with the same number as the second guide rods 236, and the second guide rods 236 are inserted into the second guide sleeves 223.

[0051] In this embodiment, the first guide sleeve 212 and the first guide rod 222 provide a stable guiding effect for the vertical movement of the lifting seat 22. During the lifting process, it can effectively reduce the shaking and deviation caused by external forces or its own structural factors, ensuring the smoothness and accuracy of the movement of the lifting seat 22. Similarly, the cooperation of the second guide sleeve 223 and the second guide rod 236 makes the moving seat 23 more stable during horizontal movement, avoiding the swinging or tilting of the moving seat 23 during the movement, and ensuring that the elastic clamping unit 2 can accurately clamp and position the battery pack. At the same time, the stable movement also helps to improve the cutting accuracy and quality of the cutting tool 3 on the battery pack housing.

[0052] In order to ensure that the elastic clamping unit 2 on the second linear slide 121 can ensure that the cutter head 31 is at the same horizontal height as the cutting seam on the original battery pack when clamping the battery pack, the following features are specifically set:

[0053] A second distance measuring sensor 246 is provided on the clamping block 241 of at least one elastic clamping unit 2 on the first linear slide 111 and the second linear slide 121. The second distance measuring sensor 246 is signal-connected to the first linear driver 211 through a controller. The second distance measuring sensor 246 is located on the side of the clamping block 241 facing the moving seat 23, and the working end of the second distance measuring sensor 246 faces the first conveying panel 13 and is kept flush with the cutter head 31.

[0054] When the elastic clamping unit 2 on the first linear slide 111 starts to work in this embodiment, when the first linear driver 211 drives the lifting seat 22 to move up and down, the second distance measuring sensor 246 on the clamping block 241 detects the height between the cutter head 31 and the first conveying panel 13, and transmits the signal to the second distance measuring sensor 246 on the second linear slide 121. Subsequently, the first linear slide 111 cooperates with the elastic clamping unit 2 to drive the battery pack to move and the cutter head 31 cuts the outer shell of the battery pack to form an initial cutting seam. When the first linear slide 111 completes the cutting action, the elastic clamping unit 2 on the second linear slide 121 is ready to perform further operations on the battery pack. During the process of the elastic clamping unit 2 on the second linear slide 121 approaching the battery pack, the second distance measuring sensor 246 continuously measures the distance from the surface of the battery pack. By comparing with the distance data recorded in the first stage, which reflects the horizontal height of the initial cutting seam, the controller controls the height of the lifting seat 22 according to the difference between the two. So that the cutter head 31 is adjusted to the same horizontal height as the initial cutting seam. In this embodiment, by the second distance measuring sensor 246, the height position of the cutter head 31 relative to the battery pack is measured and fed back in real time, and the height of the cutter head 31 on the second linear slide 121 can be accurately adjusted to be at the same horizontal height as the initial cutting seam formed by the first linear slide 111. This avoids problems such as cutting misalignment or repeated cutting caused by inconsistent heights, and greatly improves the accuracy and quality of the cutting of the outer shell of the battery pack.

[0055] In order to achieve the purpose that the cut battery pack can be separated from the third positioning block 141 to facilitate subsequent disassembly by the staff, the following features are specifically set:

[0056] On one side of the first conveying panel 13 where the second conveying panel 14 is arranged, an operation panel 15 is also arranged. On the side of the second conveying panel 14 away from the operation panel 15, a pushing unit 16 is arranged. The pushing unit 16 pushes the battery pack attached to the third positioning block 141 towards the operation panel 15.

[0057] The pushing unit 16 includes a third linear driver 161 fixedly installed on the chassis 11. The working end of the third linear driver 161 is arranged towards the operation panel 15. A push plate 162 is arranged on the working end of the third linear driver 161. The push plate 162 is located on the side of the third positioning block 141 close to the first conveying panel 13.

[0058] In this embodiment, after the first linear slide 111 and the second linear slide 121 drive the elastic clamping unit 2 to complete the cutting operation on the battery pack housing, the battery pack is in a state of being attached to the third positioning block 141, and at this time, the cutting work is completed. The third linear driver 161 in the material pushing unit 16 is in the initial position, and the push plate 162 is also located at the starting point. The push plate 162 is located on the side of the third positioning block 141 close to the first conveying panel 13. Therefore, the push plate 162 advances forward as the working end of the third linear driver 161 moves, contacts the cut battery pack and applies a thrust. Under the pushing action of the push plate 162, the battery pack attached to the third positioning block 141 gradually detaches from the third positioning block 141 and moves towards the operation panel 15 until it reaches a suitable position on the operation panel 15, facilitating subsequent disassembly operations by the staff. The third linear driver 161 can be a cylinder or an electric push rod, etc.

[0059] Working principle: The staff places the lithium battery pack to be disassembled on the first conveying panel 13, and one end of the battery pack is attached to the first positioning block 131, at which time the initial positioning of the battery pack is completed. The two first linear slides 111 on the chassis 11 start to work, and the elastic clamping unit 2 on their working ends clamps the battery pack placed on the first conveying panel 13, and then drives the battery pack to move horizontally from the first positioning block 131 towards the second positioning block 132 until the battery pack is attached to the second positioning block 132. After the first linear slide 111 drives the elastic clamping unit 2 to clamp the battery pack and attach it to the second positioning block 132, the battery pack stops moving. The first linear slide 111 drives the elastic clamping unit 2 to move relative to the battery pack. At this time, the cutting tool 3 provided on the elastic clamping unit 2 cuts the battery pack housing. Subsequently, the first linear slide 111 drives the elastic clamping unit 2 to reset, and the two second linear slides 121 on the top frame 12 are activated. The elastic clamping unit 2 on their working ends attaches to the uncut sides of the battery pack and then moves horizontally towards the third positioning block 141 to further position and adjust the battery pack. After the second linear slide 121 drives the elastic clamping unit 2 to clamp the battery pack and attach it to the third positioning block 141, the battery pack stops moving. The second linear slide 121 drives the elastic clamping unit 2 to move relative to the battery pack. At this time, the cutting tool 3 provided on the elastic clamping unit 2 cuts the other two sides of the battery pack housing. After completing the cutting operation on the battery pack housing, the staff removes the top cover of the cut housing, further removes and processes components such as the electrode plates inside the battery pack, and simultaneously performs subsequent recycling operations such as crushing the cut housing.

[0060] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A disassembly and recycling device for a lithium battery pack of a new energy vehicle, comprising a disassembly table, on which a bottom frame and a top frame are arranged, and is characterized in that, A horizontal first conveying panel is installed on the chassis. A second conveying panel with the same height as the first conveying panel is arranged on one side of the first conveying panel. A first positioning block and a second positioning block are respectively arranged at both ends of the first conveying panel. A third positioning block is arranged on the side of the second conveying panel away from the first conveying panel. Two first linear slides are installed on the chassis. The working ends of the first linear slides are located on both sides of the first conveying panel and move horizontally along the length direction of the first conveying panel. Two second linear slides are installed on the top frame. The working ends of the second linear slides are located on both sides of the second conveying panel and move horizontally along the width direction of the first conveying panel. Elastic clamping units are installed on the working ends of the first linear slides and the second linear slides. The elastic clamping unit on the first linear slide clamps the battery pack placed on the first conveying panel and moves it from the first positioning block towards the second positioning block. The elastic clamping unit on the second linear slide clamps the battery pack attached to the second positioning block and moves it towards the third positioning block; A cutting tool is arranged on each elastic clamping unit. After the first linear slide and the second linear slide drive the elastic clamping unit to clamp the battery pack and attach it to the second positioning block and the third positioning block, they continue to move. When the elastic clamping unit moves relative to the battery pack, the cutting tool cuts the outer shell of the battery pack.

2. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 1, wherein The elastic clamping unit includes a base for installing on the working ends of the first linear slide and the second linear slide. A first linear driver is arranged on the base. A lifting seat is installed on the working end of the first linear driver. The first linear driver drives the lifting seat to move vertically. A second linear driver is arranged on the lifting seat. A moving seat is fixedly installed on the working end of the second linear driver. The second linear driver on the first linear slide drives the moving seat to move horizontally along the width direction of the first conveying panel. The second linear driver on the second linear slide drives the moving seat to move horizontally along the length direction of the first conveying panel; On one side of the two moving seats facing each other, there is an insertion rod extending along the moving direction of itself. A limiting seat is arranged at the end of the insertion rod away from the moving seat. A spring and a sleeve box are sleeved on the insertion rod. The spring elastically connects the moving seat and the sleeve box, and the elastic force of the spring makes the sleeve box fit against the limiting seat; An "L"-shaped clamping block is fixedly installed on the sleeve box. The clamping block is located on the side of the sleeve box facing the elastic clamping unit and is used to fit against both sides of the outer shell of the battery pack.

3. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 2, wherein, The cutting tool is installed on the limiting seat. The cutting tool includes a cutter head rotatably installed on the limiting seat and a rotary driver fixedly installed on the limiting seat. The rotary driver drives the cutter head to rotate; The axis of the cutter head is vertically arranged, and the cutter head is located at the end of the limiting seat away from the insertion rod.

4. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 3, characterized in that, The insertion rod is inserted into an insertion hole arranged on the sleeve box. The inner diameter of the insertion hole is equal to the outer diameter of the insertion rod. A plurality of spline grooves extending along the axial direction of the insertion rod are arranged on the outer wall of the insertion rod. A number of clamping bars equal to the number of spline grooves are arranged on the inner wall of the insertion hole. The sleeve box and the insertion rod are connected by splines through the spline grooves, the insertion hole and the clamping bars.

5. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 3, wherein, When the sleeve box fits against the limiting seat under the elastic force of the spring, the cutter head is located on the side of the clamping block close to the moving seat and does not contact the outer shell of the battery pack; One side of the set box facing the moving seat is fixedly installed with a mounting box. One side of the mounting box facing the moving seat is fixedly installed with a first distance measuring sensor. The working end of the first distance measuring sensor faces the moving seat. A detection plate is fixedly installed on the limiting seat. The detection plate extends along the radial direction of the insertion hole and passes through the avoidance hole provided on the clamping block and extends in front of the working end of the first distance measuring sensor. The first distance measuring sensor detects the change in the distance between the detection plate and the first distance measuring sensor. The first distance measuring sensor is signal-connected to the second linear driver through a controller.

6. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 5, characterized in that, On both sides of the first linear driver, the base is provided with first guide sleeves extending vertically. On the side of the lifting seat facing the base, there are first guide rods with the same number as the first guide sleeves. The first guide rods are inserted into the first guide sleeves.

7. An apparatus for disassembling and recycling a lithium battery pack of a new energy vehicle according to claim 5, characterized in that, On the side of the moving seat facing the lifting seat, there are several second guide rods extending horizontally along the axial direction of the insertion rod. On the lifting seat, there are second guide sleeves with the same number as the second guide rods. The second guide rods are inserted into the second guide sleeves.

8. An apparatus for disassembling and recycling a lithium battery pack of a new energy vehicle according to claim 5, characterized in that, On the clamping block of at least one elastic clamping unit on the first linear slide and the second linear slide, a second distance measuring sensor is provided. The second distance measuring sensor is signal-connected to the first linear driver through a controller. The second distance measuring sensor is located on the side of the clamping block facing the moving seat. The working end of the second distance measuring sensor faces the first conveying panel and is flush with the cutter head.

9. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 5, characterized in that, On the side of the first conveying panel where the second conveying panel is provided, an operation panel is also provided. On the side of the second conveying panel away from the operation panel, a pushing unit is provided. The pushing unit pushes the battery pack attached to the third positioning block towards the operation panel.

10. The disassembling and recycling device for a new energy vehicle lithium battery pack according to claim 9, wherein, The pushing unit includes a third linear driver fixedly installed on the chassis. The working end of the third linear driver faces the operation panel. A push plate is provided on the working end of the third linear driver. The push plate is located on the side of the third positioning block close to the first conveying panel.

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