Battery pack milling machine

The fire battery pack is moved to the water tank to extinguish the fire through the clamping and load transfer assembly of the battery pack milling machine, solving the fire risk during the disassembly of the battery pack and achieving safe recycling of the battery pack.

CN223160112UActive Publication Date: 2025-07-29XIAMEN YIMING ROBOT AUTOMATION CO LTD
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Patent Information

Application Number
CN202422373909.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-07-29
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

The existing battery pack disassembly system lacks effective prevention and emergency response mechanisms when the module is short-circuited and caught fire, which poses a fire risk and threatens the safety of operators and equipment integrity.

Method used

A battery pack milling machine is designed, including clamping components, load transfer components, water tanks and sensor systems. The battery pack is clamped through the clamping components and transferred to the water tank using the transfer components. The water tank is used to extinguish the fire to prevent the battery pack from continuing to burn or explode. The metal chips generated by milling are collected through the roller conveyor line, and the sensor is set to monitor the fire risk.

Benefits of technology

Effectively prevent fires caused by short circuits during milling and cutting, protect the safety of operators and equipment, and realize the safe recycling of battery packs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery pack milling machine which comprises a machine frame, a feeding and discharging assembly, a milling assembly, a clamping assembly, a transferring assembly and a water tank, the feeding and discharging assembly is fixedly installed on the machine frame and located at the position of an inlet of the machine frame, the milling assembly is installed on the machine frame and used for milling a battery pack, and the clamping assembly is located at the position of an outlet of the machine frame. The clamping assembly is used for clamping the battery pack, the transferring assembly is fixedly installed on the rack, the clamping assembly is fixedly installed at the moving end of the transferring assembly, the water tank is arranged in the rack, and the rack is located on the moving path of the transferring assembly. When the battery pack catches fire or explodes, the battery pack can be clamped through the clamping assembly, then the clamping assembly is driven to move through the transferring assembly, the battery pack clamped by the clamping assembly is transferred to the position of the water tank, and then the battery pack is thrown into the water tank only by releasing clamping of the clamping assembly on the battery pack. Therefore, continuous combustion or explosion is prevented, and the protection effect is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling, in particular to a battery pack milling and cutting machine. Background Technique

[0002] With the booming development of the electric vehicle industry, the recycling and treatment of battery packs have become an important link in environmental protection and resource recycling. In the process of disassembling battery packs, the milling and cutting of the solder joints of the module connecting pieces are indispensable steps, but these operations are often accompanied by high risks, especially the problem of module short-circuit and fire, which pose a serious threat to the safety of operators, the integrity of equipment and the production environment.

[0003] Although the existing battery pack disassembly systems have realized the automated process from the docking conveyor line to the milling station, cutting station and then to the main line, there is still a lack of effective prevention and emergency handling mechanisms for the key problem of module short-circuit and fire. During the milling of the solder joints of the module, due to reasons such as the conductivity of the fixture, tool wear or improper operation, short circuits may occur, which may lead to fires. Once a fire breaks out and cannot be controlled in time, it will spread rapidly, not only damaging the equipment but also causing casualties. Therefore, we provide a battery pack milling and cutting machine to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a battery pack milling and cutting machine.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] A battery pack milling and cutting machine, comprising:

[0007] A frame;

[0008] A loading and unloading component, which is fixedly installed on the frame, and the loading and unloading component is located at the entrance position of the frame;

[0009] A milling and cutting component, which is installed on the frame, and the milling and cutting component is used for milling and cutting the battery pack;

[0010] A clamping component, which is used for clamping the battery pack;

[0011] A transfer component, which is fixedly installed on the frame, and the clamping component is fixedly installed on the mobile end of the transfer component;

[0012] A water tank, which is arranged in the frame, and the frame is located on the moving path of the transfer component.

[0013] Preferably, the clamping assembly includes a fixed plate, on which two clamping plates are slidably mounted. A positive and negative thread screw is also rotatably mounted on the fixed plate and is in transmission connection with the two clamping plates. The positive and negative thread screw rotates to drive the two clamping plates to move closer to or away from each other. A rotary driving member is installed at the power input end of the positive and negative thread screw.

[0014] Preferably, protective pads are arranged on the clamping surfaces of the two clamping plates.

[0015] Preferably, the transfer assembly includes two linear modules installed on the frame. A lifting cylinder is fixedly installed at the moving end of each linear module. The clamping assembly is slidably mounted up and down on the lifting cylinder. A driven plate is fixedly installed on the lifting cylinder, and the driven plate is used to drive the clamping assembly to lift.

[0016] Preferably, the milling and cutting assembly includes a milling structure, which includes a first three-axis driving module installed on the frame. A milling driving member is fixedly installed at the moving end of the first three-axis driving module. A milling cutter is installed at the rotating end of the milling driving member.

[0017] Preferably, the milling and cutting assembly includes a cutting structure, which includes a second three-axis driving module fixedly installed on the frame. A cutting driving member is fixedly installed at the moving end of the second three-axis driving module. A cutting tool is fixedly installed at the rotating end of the cutting driving member.

[0018] Preferably, the loading and unloading assembly is a roller conveyor line.

[0019] Preferably, a collection box is also fixedly installed on the frame, and the collection box is located directly below the loading and unloading assembly.

[0020] Preferably, an outer cover is provided over the frame.

[0021] Preferably, a smoke sensor and / or a temperature sensor are installed in the space formed by the frame and the outer cover.

[0022] The utility model has the following advantages:

[0023] 1. When the battery pack catches fire or explodes, the battery pack can be clamped by the clamping assembly of the utility model, and then the transfer assembly drives the clamping assembly to move, so as to transfer the battery pack clamped by the clamping assembly to the position of the water tank. Then, the clamping assembly only needs to release the clamping of the battery pack and drop it into the water tank, thereby preventing the battery pack from continuing to burn or explode and playing a protective role.

[0024] 2. The utility model drives the left - hand and right - hand threaded screw rod to rotate through a rotation driving part, so that two clamping plates approach each other, thereby clamping the battery pack located between the two clamping plates. A protective pad is arranged on the clamping surface of the clamping plate, so as to play a role in protecting the battery pack and prevent damage to the battery pack.

[0025] 3. The utility model makes the loading and unloading assembly be a roller conveyor line, and a collection box is arranged below the roller conveyor line. The metal chips or metal fragments generated by the cutting of the milling and cutting assembly fall into the collection box through the gap between the roller conveyor lines. The collection box collects the metal fragments or metal chips generated by the milling and cutting of the milling and cutting assembly, preventing the metal chips or metal debris from damaging the battery packs conveyed subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the structure of the clamping assembly of the utility model.

[0028] Figure 3 It is a schematic diagram of the structure of the transfer assembly of the utility model.

[0029] Figure 4 It is a schematic diagram of the structure of the milling and cutting assembly of the utility model.

[0030] Figure 5 It is a schematic diagram of the positional relationship among the loading and unloading assembly, the water tank and the collection box of the utility model.

[0031] Figure 6 It is a schematic diagram of the overall structure of the utility model in the state with an outer housing.

[0032] In the figure, 100, frame; 200, loading and unloading assembly; 300, milling and cutting assembly; 310, milling structure; 311, first three - axis driving module; 312, milling driving part; 313, milling cutter; 320, cutting structure; 321, second three - axis driving module; 322, cutting driving part; 323, cutting tool; 400, clamping assembly; 410, fixing plate; 420, left - hand and right - hand threaded screw rod; 430, rotation driving part; 440, clamping plate; 450, protective pad; 500, transfer assembly; 510, linear module; 520, driven plate; 530, lifting cylinder; 600, water tank; 700, collection box; 800, outer housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] As Figure 1 —shown in Embodiment 6.

[0036] During the recycling process of the battery pack, the solder joints of the battery pack need to be milled off, and the outer shell of the battery pack needs to be cut off so that the internal battery cells can be taken out. However, during cutting or milling, it is very easy to pierce the internal battery cells, resulting in fire or explosion. To prevent the battery pack from continuing to catch fire or explode, the battery pack needs to be transferred to prevent it from continuing to catch fire or explode. For this reason, this application mainly clamps the battery pack through the clamping assembly 400, then transfers the clamped battery pack to the position of the water tank 600 through the transfer assembly 500, and finally releases the clamping of the battery pack so that the battery pack falls into the collection box 700, thereby preventing the battery pack from continuing to catch fire or explode.

[0037] Specifically, this application provides a battery pack milling and cutting machine, which includes a frame 100, a loading and unloading assembly 200, a milling and cutting assembly 300, a clamping assembly 400, a transfer assembly 500, and a water tank 600. In this embodiment, the loading and unloading assembly 200 is fixedly installed on the frame 100, and the loading and unloading assembly 200 is located at the entrance position of the frame 100. The milling and cutting assembly 300 is installed on the frame 100. The milling and cutting assembly 300 is used for milling and cutting the battery pack. The clamping assembly 400 is used for clamping the battery pack. The transfer assembly 500 is fixedly installed on the frame 100. The clamping assembly 400 is fixedly installed on the moving end of the transfer assembly 500. The water tank 600 is arranged in the frame 100, and the frame 100 is located on the moving path of the transfer assembly 500

[0038] Refer to Figure 1As shown, in this embodiment, the loading and unloading component 200 moves an external battery pack to a predetermined position, that is, to the clamping position of the clamping component 400. Then, the clamping component 400 clamps the battery pack. After clamping, the mill cutting component 300 mills the solder joints and cuts the outer shell of the battery pack. Finally, the loading and unloading component 200 conveys the milled and cut battery pack to the outside again.

[0039] In this implementation, the loading and unloading component 200 can be connected to an external conveyor line or a manipulator or other structures capable of realizing handling or conveying, so as to convey or handle the battery pack into the loading and unloading component 200, or convey and handle the battery pack on the loading and unloading component 200 to the outside.

[0040] In this embodiment, during the milling and cutting process of the battery pack by the mill cutting component 300, if the battery pack catches fire or explodes, the transfer component 500 drives the clamping component 400 to move in the first time. At this time, the clamping component 400 is still in the state of clamping the battery pack. The transfer component 500 transfers the clamping component 400 to the position of the water tank 600. Then, the clamping component 400 releases the clamping state of the battery pack. Under the action of gravity, the battery pack will fall into the water tank 600, and the water in the water tank 600 is used to prevent the battery pack from continuing to burn or explode, thereby making the battery pack safer during the recycling process and playing a protective role.

[0041] The clamping component 400 includes a fixed plate 410. Two clamping plates 440 are slidably installed on the fixed plate 410. A left - right hand screw 420 is also rotatably installed on the fixed plate 410 and is in transmission connection with the two clamping plates 440. The left - right hand screw 420 rotates to drive the two clamping plates 440 to move closer to or away from each other. A rotary driving member 430 is installed at the power input end of the left - right hand screw 420.

[0042] Refer to Figure 2 As shown, the two clamping plates 440 are slidably installed on the fixed plate 410 through sliders, and both clamping plates 440 are in transmission connection with the left - right hand screw 420. That is, the left - right hand screw 420 can convert the rotational force into the linear movement force of the clamping plates 440. Specifically, due to the particularity of the left - right hand screw 420 itself, during the rotation of the left - right hand screw 420, it can drive the clamping plates 440 at both ends to move closer to or away from each other, thereby realizing the clamping or releasing of the clamping state of the battery pack located between the two clamping plates 440.

[0043] Continue to refer to Figure 2As shown, the rotation driving member 430 is specifically a motor, specifically a servo motor. Further, the rotation driving member 430 drives the left - and - right - hand thread screw rod 420 to rotate through a synchronous belt assembly. That is, a pulley is installed at the rotating end of the left - and - right - hand thread screw rod 420, and a pulley is also installed at the power input end of the left - and - right - hand thread screw rod 420. The two pulleys are connected by a synchronous belt. Therefore, the rotational power of the rotation driving member 430 can be transmitted to the left - and - right - hand thread screw rod 420.

[0044] In this application, protective pads 450 are provided on the clamping surfaces of the two clamping plates 440. The purpose of this is to better protect the clamped battery pack and prevent the battery pack from being damaged due to contact with hard components, resulting in fires or explosions. Specifically, the protective pad 450 can be a rubber pad, a plastic plate, etc. attached to the clamping plate 440. In addition to rubber pads and plastic plates, other soft materials can also be used, and specific materials are not limited here.

[0045] The transfer assembly 500 includes two linear modules 510 installed on the frame 100. A lifting cylinder 530 is fixedly installed at the moving end of each linear module 510. The clamping assembly 400 is slidably installed up and down on the lifting cylinder 530. A driven plate 520 is fixedly installed on the lifting cylinder 530, and the driven plate 520 is used to drive the clamping assembly 400 to lift.

[0046] Refer to Figure 3 As shown, in this embodiment, two linearly movable linear modules 510 are installed on the frame 100, and lifting cylinders 530 are installed at the moving ends of the two linear modules 510. Specifically, the lifting cylinder 530 is an "L" - shaped plate body. The fixing plate 410 is slidably installed up and down on the lifting cylinder 530. And in order to enable the battery pack clamped by the clamping assembly 400 to lift, a driven plate 520 is also installed on each lifting cylinder 530. The lifting end of the driven plate 520 is connected to the fixing plate 410 in the clamping assembly 400. The two driven plates 520 can lift synchronously, and thus can drive the fixing plate 410 to move up and down.

[0047] Continue to refer to Figure 3 As shown, when it is necessary to drop the burning battery pack clamped by the two clamping plates 440 into the water tank 600, first, the two driven plates 520 are activated to drive the fixing plate 410 to rise, so that the battery pack is separated from the loading and unloading assembly 200. Next, the two linear modules 510 drive the lifting cylinders 530 to move towards the water tank 600 synchronously. When the clamped battery pack is transferred above the water tank 600, the rotation driving member 430 drives the left - and - right - hand thread screw rod 420 to rotate, driving the two clamping plates 440 to move away from each other, thus releasing the clamping of the battery pack. After that, the battery pack falls into the water tank 600 under the action of gravity, thereby preventing the battery pack from continuing to burn.

[0048] The milling and cutting assembly 300 includes a milling structure 310. The milling structure 310 includes a first three-axis driving module 311 mounted on the frame 100. A milling driving member 312 is fixedly installed at the moving end of the first three-axis driving module 311, and a milling cutter 313 is installed at the rotating end of the milling driving member 312.

[0049] The milling and cutting assembly 300 includes a cutting structure 320. The cutting structure 320 includes a second three-axis driving module 321 fixedly installed on the frame 100. A cutting driving member 322 is fixedly installed at the moving end of the second three-axis driving module 321, and a cutting tool 323 is fixedly installed at the rotating end of the cutting driving member 322.

[0050] Refer to Figure 4 As shown, in this embodiment, both the first three-axis driving module 311 and the second three-axis driving module 321 can move in the X, Y, and Z directions. The milling driving member 312 drives the milling cutter 313 to rotate. Therefore, the first three-axis driving module 311 can drive the milling driving member 312 to move in three dimensions to mill the solder joints at different positions. Similarly, the cutting driving member 322 can also move in the three-dimensional space, and while the cutting driving member 322 drives the cutting tool 323 to rotate, it cuts the outer shell of the battery pack.

[0051] Specifically, in this embodiment, the Y-direction movement of both the first three-axis driving module 311 and the second three-axis driving module 321 is carried out by a gear-rack module. Specifically, the first three-axis driving module 311 and the second three-axis driving module 321 use the same rack for movement. Then, the X-direction and Z-direction movement of the first three-axis driving module 311 and the second three-axis driving module 321 both use a motor-screw module, which is well-known in the art, and the specific structure patent will not be elaborated in detail.

[0052] It should be noted that both the milling driving member 312 and the cutting driving member 322 are motors, specifically servo motors.

[0053] The loading and unloading assembly 200 is a roller conveyor line; a collection box 700 is also fixedly installed on the frame 100, and the collection box 700 is located directly below the loading and unloading assembly 200.

[0054] Refer to Figure 5As shown, a large amount of debris and chips may be generated during the milling and cutting of the battery pack. Therefore, to prevent these debris and chips from staying on the loading and unloading assembly 200, the loading and unloading assembly 200 is set as a roller conveyor line. In this way, the debris and chips will fall through the gaps between the roller conveyor lines and will not stay on the roller conveyor, nor will they damage the battery packs conveyed subsequently or conveyed out.

[0055] Furthermore, to prevent the debris and chips from falling into the working area, a collection box 700 is used to collect the fallen debris and chips, thus facilitating processing.

[0056] The frame 100 is covered with an outer housing 800; refer to Figure 6 As shown, to prevent the debris or chips during milling or cutting from splashing externally, the frame 100 is covered by the outer housing 800 to achieve blocking of the debris or chips, and it can also prevent noise from spreading externally.

[0057] A smoke sensor (not shown in the figure) and / or a temperature sensor (not shown in the figure) are installed in the space formed by the frame 100 and the outer housing 800.

[0058] To be able to automatically detect whether the battery pack catches fire or explodes, a smoke sensor and a temperature sensor can be installed in the space formed by the frame 100 and the outer housing 800. When the battery pack catches fire or explodes, high temperature and smoke will inevitably be generated. Therefore, it can be sensed by the smoke sensor and the temperature sensor. When the temperature sensor detects a temperature higher than the preset temperature and the smoke sensor detects smoke, it can be determined that the battery pack has caught fire at this time. Then, the battery pack can be dropped into the water tank 600 through the cooperation of the transfer assembly 500 and the clamping assembly 400.

[0059] It should be noted that for detecting whether the battery pack catches fire, only a smoke sensor can be set for induction detection, or only a temperature sensor can be set for induction detection, or both a smoke sensor and a temperature sensor can be set. In this embodiment, both a temperature sensor and a smoke sensor are set in the outer housing 800. When the temperature sensor detects high temperature or the smoke sensor detects smoke, that is, as long as one of the two conditions of high temperature and smoke is met, it can be determined that the battery pack has caught fire. The battery pack is dropped into the water tank 600 through the cooperation of the clamping assembly 400 and the transfer assembly 500.

[0060] The working process of the present utility model is as follows: The battery pack is conveyed to the clamping position of the clamping assembly 400 through the loading and unloading assembly 200. After that, the clamping assembly 400 clamps and fixes the battery pack. Then, the milling and cutting assembly 300 mills and cuts the battery pack. After milling and cutting, the loading and unloading assembly 200 conveys the battery pack out. However, during the milling and cutting process, the battery pack catches fire, which is detected by the smoke sensor or temperature sensor at this time. Then, the transfer assembly 500 drives the battery pack clamped by the clamping assembly 400 to be transferred to the position of the water tank 600. Then, the clamping assembly 400 releases the clamping of the battery pack, causing the battery pack to fall into the water tank 600, thereby preventing the battery pack from continuing to burn.

[0061] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery pack milling machine, characterized in that, Comprising: A frame (100); A loading and unloading component (200), which is fixedly installed on the frame (100), and the loading and unloading component (200) is located at the entrance position of the frame (100); A milling component (300), which is installed on the frame (100), and the milling component (300) is used for milling the battery pack; A clamping component (400), which is used for clamping the battery pack; A transfer component (500), which is fixedly installed on the frame (100), and the clamping component (400) is fixedly installed on the moving end of the transfer component (500); A water tank (600), which is arranged in the frame (100), and the frame (100) is located on the moving path of the transfer component (500).

2. The battery pack milling machine according to claim 1, wherein: The clamping component (400) includes a fixing plate (410), on which two clamping plates (440) are slidably installed. A left - and - right - hand thread screw rod (420) is also rotatably installed on the fixing plate (410) and is in transmission connection with the two clamping plates (440). The left - and - right - hand thread screw rod (420) rotates to drive the two clamping plates (440) to move closer to or away from each other. A rotary driving part (430) is installed at the power input end of the left - and - right - hand thread screw rod (420).

3. The battery pack milling machine according to claim 2, wherein: Protective pads (450) are arranged on the clamping surfaces of the two clamping plates (440).

4. A battery pack milling machine according to claim 1, characterized in that: The transfer component (500) includes two linear modules (510) installed on the frame (100). The moving end of each linear module (510) is fixedly installed with a lifting cylinder (530). The clamping component (400) is slidably installed up and down on the lifting cylinder (530). A driven plate (520) is fixedly installed on the lifting cylinder (530), and the driven plate (520) is used to drive the clamping component (400) to lift.

5. A battery pack milling machine according to claim 1, characterized in that: The milling component (300) includes a milling structure (310), and the milling structure (310) includes a first three - axis driving module (311) installed on the frame (100). The moving end of the first three - axis driving module (311) is fixedly installed with a milling driving part (312), and a milling cutter (313) is installed at the rotating end of the milling driving part (312).

6. A battery pack milling machine according to claim 1 or 5, characterized in that: The milling component (300) includes a cutting structure (320), and the cutting structure (320) includes a second three - axis driving module (321) fixedly installed on the frame (100). The moving end of the second three - axis driving module (321) is fixedly installed with a cutting driving part (322), and a cutting tool (323) is fixedly installed at the rotating end of the cutting driving part (322).

7. A battery pack milling machine according to claim 1, characterized in that: The loading and unloading component (200) is a roller conveyor line.

8. The battery pack milling machine according to claim 7, wherein: A collection box (700) is also fixedly installed on the frame (100), and the collection box (700) is located directly below the loading and unloading component (200).

9. The battery pack milling machine according to claim 1, wherein: An outer cover (800) is provided over the frame (100).

10. A battery pack milling machine according to claim 9, characterized in that: A smoke sensor and / or a temperature sensor are installed in the space formed by the frame (100) and the outer housing (800).