A clamping and transferring device for lithium battery capacity grading

Abstract

This invention relates to a clamping and transferring device for lithium battery capacity testing, comprising a mounting plate with a mounting hole in the center. A horizontally arranged L-shaped plate is fixedly mounted on the bottom inner wall of the mounting hole. A positioning mechanism for improving the stability of the lithium battery is fixedly mounted on the L-shaped plate. A clamping mechanism for fixing the lithium battery is located above the positioning mechanism. When two heat sinks contact the positive and negative electrodes of the lithium battery respectively, a guide rod restricts the heat sinks, thereby positioning the lithium battery and improving stability during transfer. Simultaneously, the two heat sinks increase the contact area between the positive and negative electrodes of the lithium battery and the outside environment, thus accelerating the heat dissipation efficiency of the positive and negative electrodes. When the roller slides between the two L-shaped clamps, the roller does not provide thrust to the clamps, preventing the lithium battery from being squeezed and deformed, ensuring effective clamping of the lithium battery while avoiding damage and deformation.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing equipment technology, specifically to a clamping and transferring device for lithium battery capacity assessment. Background Technology

[0002] After the lithium-ion battery is manufactured, in order to verify the quality and performance of the product battery and further clear the transport path of Li+ between the positive and negative electrodes, improve the cycle performance of the battery in the later use process, and ensure the safety performance of the product after leaving the factory, the lithium-ion battery needs to be charged and discharged several times before leaving the factory. This process is called "capacity grading". When using the battery capacity grading cabinet, the battery is absolutely fixed, and the placement and removal of the battery are all done manually by the employees.

[0003] When discharging lithium batteries, a large amount of heat is easily generated on the surfaces of their positive and negative electrodes, which is not easy to cool down quickly. Manual operation by employees can easily cause burns. Moreover, lithium batteries that have not been effectively cooled are transferred and piled up, posing a safety hazard. At the same time, because the surface of the lithium battery is warm after capacity grading, it is difficult to control the clamping force when transferring it, which can easily crush and deform the lithium battery. Summary of the Invention

[0004] The technical problem that this solution addresses is:

[0005] (1) How to solve the problem that the positive and negative electrodes of lithium batteries are not easy to cool down quickly, employees are prone to burns when handling them manually, and lithium batteries are piled up together, posing a safety hazard.

[0006] (2) How to solve the problem that the force of clamping and transferring the lithium battery is difficult to control because the surface of the lithium battery is in a warm state after capacity division, and the lithium battery is easily squeezed, broken and deformed.

[0007] The objective of this invention can be achieved through the following technical solution: a clamping and transferring device for lithium battery capacity testing, comprising a mounting plate, wherein a mounting hole is provided in the middle of the mounting plate, and an L-shaped plate arranged horizontally is fixedly installed on the bottom of the inner wall of the mounting hole, a positioning mechanism for improving the stability of the lithium battery is fixedly installed on the L-shaped plate, and a clamping mechanism for fixing the lithium battery is provided above the positioning mechanism.

[0008] A further technical improvement of the present invention is that: the positioning mechanism includes an adjusting cylinder fixedly connected to an L-shaped plate, a piston is slidably disposed on the inner wall of the adjusting cylinder, a push rod is fixedly installed on the side of the piston, one end of the push rod movably passes through the adjusting cylinder and is fixedly installed with a push plate, and the top and bottom of the adjusting cylinder are respectively provided with a pushing unit for pressing the positive and negative electrodes of the lithium battery.

[0009] A further technical improvement of the present invention is that: the pushing unit includes a positioning plate fixedly connected to the mounting plate, a bladder is fixedly provided on the bottom surface of the positioning plate, a connecting pipe is fixedly connected to the top of the bladder, one end of the connecting pipe is fixedly inserted through the positioning plate and connected to the end of the adjusting cylinder away from the push plate; when the extended end of the control cylinder retracts from half its length to its shortest length, the top plate provides a thrust to the push plate, causing the piston to slide in the adjusting cylinder, and the air in the adjusting cylinder is injected into the two bladders through the two connecting pipes respectively, causing both bladders to expand and push the corresponding heat sinks to move towards the lithium battery. When the two heat sinks contact the positive and negative electrodes of the lithium battery respectively, the heat sinks are limited by the guide rod. The lithium battery is positioned by the two heat sinks, improving the stability during the transfer of the lithium battery. At the same time, since the two heat sinks increase the contact area between the positive and negative electrodes of the lithium battery and the outside world, the heat dissipation efficiency of the positive and negative electrodes of the lithium battery is accelerated.

[0010] A further technical improvement of the present invention is that: a heat sink is fixedly provided at the bottom of the bladder, and a longitudinally arranged guide rod is fixedly installed at each of the four corners of the top of the heat sink, with the top of the guide rod movably penetrating through the positioning plate.

[0011] A further technical improvement of the present invention is that the push plate and the outer wall of the adjusting cylinder are elastically connected by a thrust spring.

[0012] A further technical improvement of the present invention is that: the clamping mechanism includes a support platform fixedly connected to the L-shaped plate, the support platform is located away from the adjusting cylinder, and two L-shaped clamping frames are symmetrically rotated on the top of the support platform. A clamping block is fixedly installed at one end of the L-shaped clamping frame, and an inclined transmission plate is fixedly connected to the other end of the L-shaped clamping frame.

[0013] A further technical improvement of the present invention is as follows: a horizontally arranged cylinder is fixedly installed on the top of the L-shaped plate, and a roller is rotatably mounted on the extended end of the cylinder via a pin. Both L-shaped clamping frames are slidably connected to the roller. By controlling the extended end of the cylinder to retract from its longest length to half its length, before the top plate and the push plate come into contact, the roller slides on the two L-shaped clamping frames during this process. When the roller moves to the connection point between the L-shaped clamping frame and the transmission plate, the two L-shaped clamping frames flip, allowing the two clamping blocks to effectively clamp the lithium battery. When the extended end of the cylinder is controlled to retract from half its length to its shortest length, the roller slides between the two L-shaped clamping frames. During this process, the roller does not provide thrust to the two L-shaped clamping frames, preventing the two clamping blocks from squeezing and deforming the lithium battery. At the same time, since the roller provides limiting support to the two L-shaped clamping frames, it prevents the two clamping blocks from separating and causing the lithium battery to fall. This ensures effective clamping of the lithium battery while avoiding quality problems such as breakage and deformation.

[0014] A further technical improvement of the present invention is that a top plate is fixedly installed at the extended end of the cylinder, and the position of the top plate corresponds to the position of the push plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In use, when the extended end of the control cylinder retracts from half its length to its shortest length, the top plate provides thrust to the push plate, causing the piston to slide within the regulating cylinder. Air from the regulating cylinder is injected into the two bladders through two connecting pipes, causing both bladders to expand and push the corresponding heat sinks towards the lithium battery. When the two heat sinks contact the positive and negative electrodes of the lithium battery respectively, the guide rods constrain the heat sinks, positioning the lithium battery and improving stability during battery transfer. Simultaneously, because the two heat sinks increase the contact area between the positive and negative electrodes of the lithium battery and the outside environment, the heat dissipation efficiency of the positive and negative electrodes of the lithium battery is accelerated.

[0017] In use, this invention controls the cylinder's extended end to retract from its longest length to half its original length, before the top plate and push plate come into contact. During this process, rollers slide on two L-shaped clamping frames. When the rollers move to the connection point between the L-shaped clamping frames and the transmission plate, the two L-shaped clamping frames flip, effectively clamping the lithium battery. When the cylinder's extended end retracts from half its original length to its shortest length, the rollers slide between the two L-shaped clamping frames. During this process, the rollers do not provide thrust to the two L-shaped clamping frames, preventing the clamping blocks from squeezing and deforming the lithium battery. At the same time, because the rollers provide limiting support to the two L-shaped clamping frames, they prevent the clamping blocks from separating and causing the lithium battery to fall. This ensures effective clamping of the lithium battery while avoiding quality problems such as breakage and deformation. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the positioning mechanism structure of the present invention;

[0021] Figure 3 This is a cross-sectional view of the pushing unit structure of the present invention;

[0022] Figure 4 This is a top view of the clamping mechanism structure of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of a partial structure of the clamping mechanism of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the mounting plate and L-shaped plate of the present invention.

[0025] In the diagram: 1. Mounting plate; 2. L-shaped plate; 3. Robotic arm; 4. Positioning mechanism; 5. Support platform; 6. Clamping mechanism; 7. Mounting hole; 401. Push plate; 402. Piston; 403. Adjusting cylinder; 404. Push rod; 405. Top plate; 406. Pushing unit; 4061. Connecting pipe; 4062. Heat sink; 4063. Leather bag; 4064. Guide rod; 4065. Positioning plate; 601. Roller; 602. Cylinder; 603. Transmission plate; 604. Clamping block; 605. L-shaped clamping frame; 606. Pin. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-6 As shown, a clamping and transferring device for lithium battery capacity testing includes a mounting plate 1. A mounting hole 7 is provided in the middle of the mounting plate 1. An L-shaped plate 2 arranged horizontally is fixedly installed on the bottom of the inner wall of the mounting hole 7. A positioning mechanism 4 for improving the stability of the lithium battery is fixedly installed on the L-shaped plate 2. A clamping mechanism 6 for fixing the lithium battery is provided above the positioning mechanism 4.

[0028] Please see Figure 1 and Figure 2 As shown, the positioning mechanism 4 includes an adjusting cylinder 403 fixedly connected to the L-shaped plate 2. A piston 402 is slidably disposed on the inner wall of the adjusting cylinder 403. A push rod 404 is fixedly installed on the side of the piston 402. One end of the push rod 404 movably passes through the adjusting cylinder 403 and is fixedly installed with a push plate 401. The push plate 401 is elastically connected to the outer wall of the adjusting cylinder 403 by a thrust spring. The top and bottom of the adjusting cylinder 403 are respectively provided with a pushing unit 406 for pressing the positive and negative electrodes of the lithium battery.

[0029] Please see Figure 2 and Figure 3As shown, the aforementioned pushing unit 406 includes a positioning plate 4065 fixedly connected to the mounting plate 1. A bladder 4063 is fixedly disposed on the bottom surface of the positioning plate 4065, and a connecting pipe 4061 is fixedly connected to the top of the bladder 4063. One end of the connecting pipe 4061 is fixedly inserted through the positioning plate 4065 and connected to the end of the adjusting cylinder 403 away from the push plate 401. When the extended end of the control cylinder 602 retracts from half its length to its shortest length, the top plate 405 provides a thrust to the push plate 401, causing the piston 402 to slide within the adjusting cylinder 403, thus passing the air in the adjusting cylinder 403 through two... The connecting tube 4061 is injected into the two bladders 4063 respectively, causing both bladders 4063 to expand and push the corresponding heat sinks 4062 toward the lithium battery. When the two heat sinks 4062 come into contact with the positive and negative electrodes of the lithium battery respectively, the guide rod 4064 restricts the heat sinks 4062. The two heat sinks 4062 are used to position the lithium battery, improving the stability during the transfer of the lithium battery. At the same time, since the two heat sinks 4062 increase the contact area between the positive and negative electrodes of the lithium battery and the outside world, the heat dissipation efficiency of the positive and negative electrodes of the lithium battery is accelerated.

[0030] Please see Figure 3 As shown, a heat sink 4062 is fixedly installed at the bottom of the aforementioned bladder 4063, and a longitudinally arranged guide rod 4064 is fixedly installed at the four corners of the top of the heat sink 4062. The top of the guide rod 4064 movably passes through the positioning plate 4065.

[0031] Please see Figure 1 and Figure 4 As shown, the clamping mechanism 6 includes a support platform 5 fixedly connected to the L-shaped plate 2. The support platform 5 is located away from the adjusting cylinder 403, and two L-shaped clamping frames 605 are symmetrically rotated on the top of the support platform 5. A clamping block 604 is fixedly installed at one end of the L-shaped clamping frame 605, and an inclined transmission plate 603 is fixedly connected to the other end of the L-shaped clamping frame 605.

[0032] Please see Figure 4 and Figure 5As shown, a horizontally arranged cylinder 602 is fixedly installed on the top of the L-shaped plate 2. A roller 601 is rotatably mounted on the extended end of the cylinder 602 via a pin 606. Both L-shaped clamping frames 605 are slidably connected to the roller 601. A top plate 405 is also fixedly installed on the extended end of the cylinder 602, and the position of the top plate 405 corresponds to the position of the push plate 401. By controlling the extended end of the cylinder 602 to retract from its longest length to half its original length, the top plate 405 and the push plate 401 have not yet come into contact. During this process, the roller 601 slides on the two L-shaped clamping frames 605. When the roller 601 moves to the connection point between the L-shaped clamping frame 605 and the transmission plate 603... At this time, the two L-shaped clamping frames 605 are flipped, so that the two clamping blocks 604 effectively clamp the lithium battery. When the extended end of the control cylinder 602 retracts from half its length to its shortest length, the roller 601 slides between the two L-shaped clamping frames 605. During this process, the roller 601 does not provide thrust to the two L-shaped clamping frames 605, preventing the two clamping blocks 604 from squeezing and deforming the lithium battery. At the same time, since the roller 601 provides limiting support to the two L-shaped clamping frames 605, it prevents the two clamping blocks 604 from separating and causing the lithium battery to fall. While ensuring effective clamping of the lithium battery, it avoids quality problems such as damage and deformation.

[0033] Please see Figure 1 As shown, a robotic arm 3 for transferring lithium batteries is fixedly installed at the end of the L-shaped plate 2 away from the lithium battery. The robotic arm 3 is existing technology.

[0034] Working principle: When using this invention, firstly, as... Figure 1 and Figure 4 As shown, the robotic arm 3 moves the mounting plate 1 to the clamping station. At this time, the two clamping blocks 604 correspond to the positions of the divided lithium batteries. Then, the extended end of the cylinder 602 is controlled to retract from its longest length to half its length. The top plate 405 and the push plate 401 have not yet come into contact. During this process, the roller 601 slides on the two L-shaped clamping frames 605. When the roller 601 moves to the connection between the L-shaped clamping frame 605 and the transmission plate 603, the two L-shaped clamping frames 605 are flipped, causing the two clamping blocks 604 to hold the lithium battery. Effective clamping is achieved when the extended end of the control cylinder 602 retracts from half its length to its shortest position. During this process, the roller 601 slides between the two L-shaped clamping frames 605. The roller 601 does not provide thrust to the two L-shaped clamping frames 605, preventing the two clamping blocks 604 from squeezing and deforming the lithium battery. Simultaneously, because the roller 601 provides limiting support to the two L-shaped clamping frames 605, it prevents the two clamping blocks 604 from separating and causing the lithium battery to fall. This ensures effective clamping of the lithium battery while preventing quality issues such as breakage and deformation. Figure 2 and Figure 3As shown, when the extended end of the control cylinder 602 retracts from half its length to its shortest length, the top plate 405 provides thrust to the push plate 401, causing the piston 402 to slide within the regulating cylinder 403. Air from the regulating cylinder 403 is injected into the two bladders 4063 through two connecting pipes 4061, causing both bladders 4063 to expand. This pushes the corresponding heat sinks 4062 toward the lithium battery. When the two heat sinks 4062 contact the positive and negative electrodes of the lithium battery, the guide rod 4064 restricts the heat sinks 4062, positioning the lithium battery and improving stability during transfer. Simultaneously, since the two heat sinks 4062 increase the contact area between the positive and negative electrodes of the lithium battery and the outside world, the heat dissipation efficiency of the positive and negative electrodes is accelerated. Then, the robotic arm 3 is controlled to transfer the lithium battery to the storage location.

[0035] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A clamping and transferring device for lithium battery capacity sorting, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a mounting hole (7) in the middle. An L-shaped plate (2) is fixedly installed on the bottom of the inner wall of the mounting hole (7). A positioning mechanism (4) for improving the stability of the lithium battery is fixedly installed on the L-shaped plate (2). A clamping mechanism (6) for fixing the lithium battery is provided above the positioning mechanism (4). The positioning mechanism (4) includes an adjusting cylinder (403) fixedly connected to the L-shaped plate (2). A piston (402) is slidably disposed on the inner wall of the adjusting cylinder (403). A push rod (404) is fixedly installed on the side of the piston (402). One end of the push rod (404) movably passes through the adjusting cylinder (403) and is fixedly installed with a push plate (401). The top and bottom of the adjusting cylinder (403) are respectively provided with a pushing unit (406) for pressing the positive and negative electrodes of the lithium battery. The pushing unit (406) includes a positioning plate (4065) fixedly connected to the mounting plate (1). A bladder (4063) is fixedly provided on the bottom surface of the positioning plate (4065). A connecting pipe (4061) is fixedly connected to the top of the bladder (4063). One end of the connecting pipe (4061) is fixedly inserted through the positioning plate (4065) and connected to the end of the adjusting cylinder (403) away from the push plate (401). The bottom of the bladder (4063) is fixedly provided with a heat sink (4062), and a guide rod (4064) is fixedly installed at each of the four corners of the top of the heat sink (4062). The top of the guide rod (4064) can be moved through the positioning plate (4065). The push plate (401) and the outer wall of the regulating cylinder (403) are elastically connected by a thrust spring; The clamping mechanism (6) includes a support platform (5) fixedly connected to the L-shaped plate (2). The support platform (5) is located away from the adjusting cylinder (403), and two L-shaped clamping frames (605) are symmetrically rotated on the top of the support platform (5). A clamping block (604) is fixedly installed at one end of the L-shaped clamping frame (605), and an inclined transmission plate (603) is fixedly connected to the other end of the L-shaped clamping frame (605). A cylinder (602) is fixedly installed on the top of the L-shaped plate (2). A roller (601) is rotatably provided on the extended end of the cylinder (602) through a pin (606). Both L-shaped clamps (605) are slidably connected to the roller (601). The cylinder (602) is also fixedly mounted with a top plate (405), the position of which corresponds to the position of the push plate (401); When the extended end of the control cylinder (602) retracts from half its length to its shortest length, the roller (601) slides between the two L-shaped clamps (605). The roller (601) does not provide thrust to the two L-shaped clamps (605), preventing the two clamping blocks (604) from squeezing and deforming the lithium battery.

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