Battery transfer device and control method thereof

Abstract

The invention provides a battery transfer device and a control method, the battery transfer device comprises a weighing mechanism, a clamping mechanism and a lifting mechanism, the weighing mechanism is suitable for weighing a battery, the clamping mechanism is suitable for clamping the battery, and the clamping mechanism is movably connected with the weighing mechanism and has a first position and a second position relative to the weighing mechanism; the lifting mechanism is connected with the weighing mechanism and selectively supports the clamping mechanism so that the clamping mechanism can be located at the first position, and the lifting mechanism is suitable for driving the clamping mechanism and the weighing mechanism to move synchronously. Wherein at the first position, the clamping mechanism is movably connected with the weighing mechanism, and at the second position, the clamping mechanism is in gravity connection with the weighing mechanism so as to weigh the battery. Therefore, on the premise of improving the production efficiency, in the battery processing and transferring process, the impact of the clamping mechanism and environmental factors on the weighing mechanism can be reduced, the weighing stability and reliability of the weighing mechanism are improved, and the weighing precision can be improved.

Description

Technical Field

[0001] This invention relates to the field of battery tooling technology, and in particular to a battery transfer device and its control method. Background Technology

[0002] The application of rechargeable batteries in daily life and industry is becoming increasingly widespread. For example, new energy vehicles equipped with rechargeable batteries are already widely used. Furthermore, rechargeable batteries are increasingly being applied in energy storage. In new energy vehicles equipped with rechargeable batteries, the batteries can provide all or part of the power. In the field of energy storage, batteries can be installed in energy storage enclosures or directly on the user side.

[0003] The manufacturing process of secondary batteries involves multiple steps, including formation and electrolyte injection. These steps require the transfer of batteries using clamping fixtures, and the batteries also need to be weighed during electrolyte injection and formation. In related technologies, it is difficult to synchronize transfer and weighing, and the weighing accuracy is hard to guarantee. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a battery transfer device and its control method. The battery transfer device can simultaneously clamp, transport, and weigh batteries, improving production efficiency. Furthermore, the weighing mechanism is movably connected to the clamping mechanism, reducing the probability of the weighing mechanism being impacted during transport, resulting in higher operational stability and reliability, and improving weighing accuracy.

[0005] In a first aspect, this application proposes a battery transfer device, comprising: a weighing mechanism, a clamping mechanism, and a lifting mechanism. The weighing mechanism is adapted to weigh the battery, the clamping mechanism is adapted to clamp the battery, the clamping mechanism is movably connected to the weighing mechanism, and has a first position and a second position relative to the weighing mechanism. The lifting mechanism is connected to the weighing mechanism and can selectively support the clamping mechanism so that the clamping mechanism is in the first position, and is adapted to drive the clamping mechanism and the weighing mechanism to move synchronously. In the first position, the clamping mechanism is movably connected to the weighing mechanism, and in the second position, the clamping mechanism is gravityally connected to the weighing mechanism to achieve the weighing of the battery.

[0006] According to the battery transfer device of this application embodiment, the clamping mechanism is movably disposed on the weighing mechanism, and the lifting mechanism is adapted to keep the clamping mechanism in a first position or switch it to a second position. In the first position, the battery can be transferred and processed, and in the second position, the battery can be weighed. Under the premise of improving production efficiency, the impact of the clamping mechanism and environmental factors on the weighing mechanism can be reduced during battery processing and transfer, the service life of the weighing mechanism can be extended, and its weighing stability and reliability can be improved, and the weighing accuracy can be improved.

[0007] According to some embodiments of this application, the battery transfer device further includes: a floating mechanism, which includes a first plate, a second plate, and a movable connection group. The first plate is connected to a weighing mechanism, and the second plate is connected to a clamping mechanism. The weighing mechanism and the clamping mechanism are correspondingly arranged. The movable connection group is located between the first plate and the second plate, and enables the first plate and the second plate to be movably connected.

[0008] In the above technical solution, the first plate and the second plate are connected to the weighing mechanism and the clamping mechanism respectively. The first plate and the second plate are movably connected through a movable connection group, thereby enabling the weighing mechanism and the clamping mechanism to be movably connected. The clamping mechanism and the weighing mechanism can be movably connected through a floating mechanism, which can simplify the structure of the battery transfer device and reduce the cost.

[0009] According to some embodiments of this application, the movable connection group includes: a limiting locking pin and a limiting locking groove. The limiting locking pin is formed on a first plate or a second plate, and the limiting locking groove is correspondingly formed on the second plate or the first plate. The limiting locking pin is movably disposed in the limiting locking groove. The limiting locking groove has a first groove segment and a second groove segment. The groove opening size of the first groove segment is larger than the groove opening size of the second groove segment, so that when the limiting locking pin is in the first groove segment, the first plate and the second plate are movably connected.

[0010] In the above technical solution, the limiting locking pin is formed on the first plate and the limiting locking groove is formed on the second plate. In other embodiments, the limiting locking pin is formed on the second plate and the limiting locking groove is formed on the first plate. The limiting locking groove has a first groove segment and a second groove segment arranged sequentially in a third direction. The first groove segment is located at the bottom and the second groove segment is located at the top. When the clamping mechanism is in the first position, the limiting locking pin is in the first groove segment. The groove opening size of the first groove segment is larger than the groove opening size of the second groove segment. When the limiting locking pin is in the first groove segment, the first plate and the second plate are in a movable connection state, and the weighing mechanism can move relative to the clamping mechanism. At this time, the two are in a "separated state" to reduce the transmission of vibration and impact to the weighing mechanism, improve the working stability and reliability of the weighing mechanism, and extend its service life. In the second position, the limiting locking pin is in the second groove segment. Not only can the weighing function be realized, but the movement between the first plate and the second plate can also be limited through the cooperation of the limiting locking pin and the second groove segment, reducing the shaking of the clamping mechanism and the battery, thereby improving the weighing accuracy.

[0011] According to some embodiments of this application, the battery transfer device further includes: a platform and a moving mechanism, the moving mechanism being connected to the lifting mechanism and movably disposed on the platform.

[0012] In the above technical solution, the moving mechanism is connected to the platform. The moving mechanism can drive the lifting mechanism to move, so as to realize the synchronous movement of the lifting mechanism, the weighing mechanism and the clamping mechanism. This enables the transfer of the clamped battery, reduces the difficulty of transfer, and allows the battery position to be adjusted. For example, during liquid injection processing, it makes it easier to align the battery with the liquid injection equipment. Before clamping the battery, the position of the clamping mechanism can be adjusted by the moving mechanism to facilitate the clamping mechanism to clamp the battery, thus improving the ease of use of the battery transfer device.

[0013] According to some embodiments of this application, the stand has a clamping station, the clamping station is provided with a first lifting mechanism and a first tray, the battery is adapted to be placed on the first tray, the first lifting mechanism is adapted to lift the first tray, and the clamping mechanism is adapted to clamp the battery in the first tray.

[0014] In the above technical solution, the first tray is suitable for placing batteries, and the batteries can be arranged in an array within the first tray. The moving mechanism can drive the clamping mechanism to move along a first direction to clamp the batteries in rows in the first direction. Each row of clamped batteries can be processed first and then weighed, or weighed first, then processed, and then weighed again, etc. The clamping station can be equipped with a transmission belt, roller assembly, etc., as a transmission structure so that the first tray can move quickly to the clamping station. The clamping station can be equipped with a clamping frame, and the clamping frame is equipped with a first lifting mechanism to drive the first tray to switch between a lifting position and a reset position. When it is necessary to clamp the battery, the first lifting mechanism drives the first tray to the clamping position to facilitate the clamping of the battery. After processing is completed, the first lifting mechanism can also drive the first tray to the clamping position to facilitate the placement of the processed or weighed batteries back into the first tray. This improves processing convenience and efficiency, while also reducing the probability of battery damage during battery handling.

[0015] According to some embodiments of this application, the test bench also has a testing station, which is provided with a second lifting mechanism and a second tray. The second tray is suitable for placing testing weights, and the second lifting mechanism is suitable for lifting the second tray.

[0016] In the above technical solution, the testing station and the clamping station can be arranged sequentially in the first direction. The moving mechanism can drive the clamping mechanism to move between the testing station and the clamping station. The second tray is suitable for placing the testing weights. The testing weights can be arranged in rows in the second tray. A testing frame can be set separately on the testing station. A second lifting mechanism is set on the testing frame to drive the second tray to switch between the lifting position and the reset position. When it is necessary to clamp the testing weights, the second lifting mechanism drives the second tray to the clamping position to facilitate the clamping of the testing weights. After the testing and calibration are completed, the second lifting mechanism can also drive the second tray to the clamping position to facilitate the return of the used testing weights to the second tray. This improves the convenience and efficiency of testing, and also reduces the probability of damage to the testing weights during the handling process.

[0017] According to some embodiments of this application, there are multiple detection weights, and the weights of the multiple detection weights increase sequentially. Each clamping mechanism is suitable for clamping one detection weight, and the multiple clamping mechanisms clamp detection weights of different weights respectively.

[0018] According to some embodiments of this application, the lifting mechanism includes a lifting cylinder and a support plate, the support plate being optionally connected to a clamping mechanism, the cylinder body of the lifting cylinder being connected to a moving mechanism, and the piston rod of the lifting cylinder being connected to the support plate.

[0019] In the above technical solution, the moving mechanism drives the lifting mechanism to adjust its position along the first direction. This can be done within the clamping station to adjust the relative position for easy battery handling, or by switching between the clamping station and the testing station to switch between battery clamping operations and weighing mechanism calibration, thereby improving the ease of use of the weighing and clamping equipment.

[0020] According to some embodiments of this application, the moving mechanism includes a moving track and a slider. The moving track extends along a first direction, and the slider is movably disposed on the moving track. The slider is connected to a lifting mechanism and a weighing mechanism, and multiple weighing mechanisms are sequentially disposed in a second direction having an angle with the first direction.

[0021] In the above technical solution, the moving mechanism drives the lifting mechanism to adjust its position along the first direction. This can be done within the clamping station to adjust the relative position for easy battery handling, or by switching between the clamping station and the testing station to switch between battery clamping operations and weighing mechanism calibration, thereby improving the ease of use of the weighing and clamping equipment.

[0022] According to some embodiments of this application, the clamping mechanism includes: a clamping plate, a clamping cylinder, and clamping claws, wherein there are at least two clamping claws connected to the clamping cylinder and adapted to clamp or release the battery under the drive of the clamping cylinder.

[0023] In the above technical solution, the clamping plate is used to connect with the floating mechanism, that is, the clamping plate is connected with the second plate. The clamping cylinder can drive the jaws to move so that multiple jaws move toward or away from each other to adjust the size of the clamping space, realize the clamping and release of batteries of different sizes, and the clamping and release of detection weights of different sizes, and improve the clamping stability and reliability of the clamping mechanism for batteries and detection weights.

[0024] According to some embodiments of this application, the battery transfer device further includes: an air supply mechanism, a clamping plate for fixing a clamping cylinder, and a clamping air passage connected to the clamping cylinder is provided in the clamping plate. The air supply mechanism can be selectively connected to the clamping air passage, and the clamping air passage is constructed as a self-locking air passage.

[0025] In the above technical solution, on the one hand, the air supply mechanism can be separated from the clamping mechanism during weighing, which can avoid the impact of vibration and impact of the air supply mechanism on the weighing mechanism. On the other hand, during the weighing process, the weighing mechanism weighs the total weight of the clamping mechanism and the battery, or the total weight of the clamping mechanism and the detection weight, which can reduce the impact of environmental factors on the weighing structure and improve the weighing accuracy.

[0026] Secondly, this application provides a control method for battery transport, the control method including: a battery weighing method, the battery weighing method including:

[0027] The moving mechanism drives the gripping mechanism to move to the gripping station;

[0028] The first tray is raised to the clamping position, the air supply mechanism supplies air to the clamping mechanism, and the clamping mechanism clamps the battery.

[0029] The lifting mechanism, the air supply mechanism and the clamping mechanism are disengaged, and the clamping mechanism is switched to the second position, and the first tray is reset;

[0030] The weighing mechanism weighs the battery.

[0031] According to some embodiments of this application, the battery weighing method further includes:

[0032] The lifting mechanism and the air supply mechanism are reset to be connected to the clamping mechanism, so that the clamping mechanism is switched to the first position, the air supply mechanism supplies air, and the first tray is lifted to the clamping position.

[0033] The moving mechanism drives the clamping mechanism to move along the second direction and repeats the weighing process.

[0034] According to some embodiments of this application, the control method further includes: a weighing mechanism calibration method, which includes:

[0035] The moving mechanism drives the clamping mechanism to move to the workstation;

[0036] The second tray is raised to the clamping position, the gas supply mechanism supplies gas, and the clamping mechanism clamps the test weight.

[0037] The lifting mechanism disengages from the clamping mechanism, and the clamping mechanism switches to the second position. The air supply mechanism disengages from the clamping mechanism, and the second tray resets.

[0038] The weighing mechanism weighs the test weights;

[0039] The weighing value of the weighing mechanism is compared with the calibrated value of the test weight. If the difference exceeds the preset difference range, a calibration alarm is issued.

[0040] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0042] Figure 1 This is a schematic diagram of a battery transfer device according to an embodiment of this application from one angle;

[0043] Figure 2 This is a schematic diagram of the battery transfer device according to an embodiment of this application from another angle;

[0044] Figure 3 This is a schematic diagram of the clamping mechanism of the battery transfer device according to an embodiment of this application in the clamping position;

[0045] Figure 4 This is another schematic diagram of the clamping mechanism of the battery transfer device according to an embodiment of this application in the clamping position;

[0046] Figure 5 This is another schematic diagram of the clamping mechanism of the battery transfer device according to an embodiment of this application in the detection station;

[0047] Figure 6 This is a schematic diagram of the gripping mechanism in the first position according to an embodiment of this application;

[0048] Figure 7 This is a schematic diagram of the engagement of the limiting lock pin and the limiting lock groove according to an embodiment of this application;

[0049] Figure 8 This is a schematic diagram of the gripping mechanism in the second position according to an embodiment of this application;

[0050] Figure 9This is another schematic diagram of the engagement between the limiting locking pin and the limiting locking groove according to an embodiment of this application;

[0051] Figure 10 This is a schematic diagram illustrating the cooperation of the weighing mechanism, the floating mechanism, and the clamping mechanism according to embodiments of this application;

[0052] Figure 11 This is a perspective view of the weighing mechanism, floating mechanism, and clamping mechanism according to embodiments of this application;

[0053] Figure 12 This is a weighing flowchart of the weighing clamping mechanism according to an embodiment of this application;

[0054] Figure 13 This is a calibration flowchart of the weighing clamping mechanism according to an embodiment of this application.

[0055] Figure label:

[0056] Battery transfer device 100, battery 200,

[0057] Weighing mechanism 10,

[0058] Clamping mechanism 20, clamping plate 21, clamping cylinder 22, gripper 23.

[0059] Lifting mechanism 30, lifting cylinder 31, support plate 32.

[0060] Floating mechanism 40, first plate 41, second plate 42, movable connecting group 43, limit locking pin 431, limit locking groove 432, first groove segment 4321, second groove segment 4322.

[0061] Frame 50, clamping station 51, inspection station 52, first lifting mechanism 53, first tray 54, second lifting mechanism 55, second tray 56, inspection weight 57.

[0062] Moving mechanism 60, moving track 61, slider 62,

[0063] 70 gas supply organizations

[0064] First direction X, second direction Y, third direction Z. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0066] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0067] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0070] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0072] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0073] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0074] In this application, "multiple" means two or more (including two).

[0075] Currently, batteries are being used more and more widely in daily life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of the application areas of power batteries, the market demand for them is also constantly increasing.

[0076] In this embodiment of the application, the battery can be a single battery cell.

[0077] A single battery cell can be a rechargeable battery. A rechargeable battery is a battery cell that can be recharged after it has been discharged, allowing the active materials to be activated and the cell to continue to be used.

[0078] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0079] A battery cell consists of a bare cell (also known as an electrode assembly). The bare cell includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of a battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, located between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through.

[0080] In some embodiments, a battery cell may include a casing. The casing is used to encapsulate components such as the bare cell and electrolyte. The casing may be made of steel, aluminum, plastic (such as polypropylene), composite metal (such as copper-aluminum composite), or aluminum-plastic film, etc.

[0081] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries. This application does not have any particular limitations.

[0082] In some implementations, the bare battery cell has a wound structure. The positive electrode, negative electrode, and separator are wound into a wound structure.

[0083] In some implementations, the bare battery cell has a stacked structure.

[0084] The inventors of this application noted that batteries are typically placed in battery fixtures and transferred using these fixtures, such as moving one or more batteries as a whole to a processing position, such as an electrolyte filling position or a formation position, and performing corresponding operations at that position to complete the battery processing. However, at some processing positions, it may be necessary to weigh the batteries before and after processing, such as weighing before and after electrolyte filling. If the weighing mechanism is set up separately, the battery fixture needs to move the battery to the weighing mechanism twice, once before and once after electrolyte filling, which is cumbersome and reduces production efficiency. While integrating the weighing mechanism into the battery fixture allows for continuous weighing of the batteries, simplifying the operation and improving production efficiency, the impacts and vibrations generated during battery handling are directly transmitted to the weighing mechanism. This makes the weighing mechanism more susceptible to external impacts, reducing its service life, decreasing weighing stability, and affecting weighing accuracy.

[0085] Based on this, this application proposes a weighing clamping device, wherein the clamping mechanism can switch between a first position and a second position. In the first position, the battery can be clamped, and in the first position, the clamping mechanism is movably connected to the weighing device. This simplifies the operation steps, improves production efficiency, reduces the probability of impact being directly transmitted to the weighing mechanism, improves weighing stability and reliability, and improves weighing accuracy.

[0086] It is understood that the battery transfer device in this application embodiment is not limited to use at the liquid injection processing position, and the liquid injection processing position is not limited to the primary liquid injection processing position and the secondary liquid injection processing position after formation.

[0087] The following is for reference. Figures 1-13 A battery transfer device 100 and a control method according to an embodiment of the present invention are described.

[0088] like Figure 1 and Figure 2 As shown, this application proposes a battery transfer device 100, including: a weighing mechanism 10, a clamping mechanism 20 and a lifting mechanism 30, so as to weigh the battery 200 by the weighing mechanism 10, clamp the battery 200 by the clamping mechanism 20, and realize the synchronous movement of the weighing mechanism 10, the clamping mechanism 20 and the battery 200 by the lifting mechanism 30.

[0089] See Figure 10 and Figure 11 As shown, the weighing mechanism 10 is adapted to weigh the battery 200, the clamping mechanism 20 is adapted to clamp the battery 200, and the clamping mechanism 20 is movably disposed on the weighing mechanism 10 to switch between a first position and a second position. The lifting mechanism 30 is selectively connected to the clamping mechanism 20 so that the clamping mechanism 20 is in the first position and is adapted to drive the clamping mechanism 20 and the weighing mechanism 10 to move synchronously. In the first position, the clamping mechanism 20 is movably connected to the weighing mechanism 10, and in the second position, the clamping mechanism 20 is gravity-connected to the weighing mechanism 10 to realize the weighing of the battery 200.

[0090] Specifically, the lifting mechanism 30 is connected to the weighing mechanism 10, and the clamping mechanism 20 is movably connected to the weighing mechanism 10 (e.g., the clamping mechanism 20 and the weighing mechanism 10 are directly or indirectly sliding or rotating, so that the weighing mechanism 20 can switch between a first position and a second position relative to the clamping mechanism 10). This allows the lifting mechanism 30 to drive the clamping mechanism 20 and the weighing mechanism 10 to move synchronously, thereby realizing the transfer of the battery 200 after clamping. The clamping mechanism 20 is movably mounted on the weighing mechanism 10, corresponding to the ability to switch between a first position and a second position. The lifting mechanism 30 is also adapted to be connected to the clamping mechanism 20 and to position the clamping mechanism 20 in the first position. In the first position, the weighing mechanism 10 and the clamping mechanism 20 are movably connected, that is, after the clamping action is completed, the weighing... Mechanism 10 and clamping mechanism 20 are in an active connection state, and relative movement can occur between weighing mechanism 10 and clamping mechanism 20, so that weighing mechanism 10 and lifting mechanism 30 are in a "separated state". This can reduce the impact on weighing mechanism 10 during the clamping, transfer and processing of battery 200, extend the service life of weighing mechanism 10, and improve the working stability and reliability of weighing mechanism 10. When lifting mechanism 30 is disengaged from clamping mechanism 20, clamping mechanism 20 switches to a second position. In the second position, clamping mechanism 20 and weighing mechanism 10 can achieve gravity connection, that is, clamping mechanism 20 can pull weighing mechanism 10 from below, and weighing mechanism 10 can weigh clamping mechanism 20 and battery 200 to improve weighing accuracy.

[0091] It is understood that the first direction involved in the embodiments of this application can be defined as the length direction or the front-back direction; the second direction can be defined as the width direction or the left-right direction; and the third direction can be defined as the height direction or the up-down direction.

[0092] For example, the weighing mechanism 10 and the clamping mechanism 20 are arranged sequentially in the vertical direction, and the clamping mechanism 20 is configured to move in the vertical direction to switch between a first position and a second position. In the first position, the weighing mechanism 10 and the clamping mechanism 20 are movably connected, meaning that in the first position, the weighing mechanism 10 and the clamping mechanism 20 can generate relative movement in the left-right and front-back directions, and there is no rigid direct connection between the two. In the second position, the clamping mechanism 20 is set away from the weighing mechanism 10 compared to the first position, and in the second position, the lifting mechanism 30 does not support the clamping mechanism 20 below it, so that the clamping mechanism 20 pulls the weighing mechanism 10 below it under its own weight and the weight of the battery 200, so that the weighing mechanism 10 can weigh the battery 200.

[0093] In other words, see Figure 6 and Figure 8As shown, Figure 6 As shown, at this time, the lifting mechanism 30 supports the clamping mechanism 20 below it, as... Figure 8 As shown, at this time, the lifting mechanism 30 and the clamping mechanism 20 are in a separated state. Under the action of gravity, the clamping mechanism 20 switches to the second position. That is, the lifting mechanism 30 can selectively support the clamping mechanism 20, meaning that the lifting mechanism 30 can lift the clamping mechanism 20 and overcome the gravity of the clamping mechanism 20 itself and the battery 200 to keep it in the first position. This way, the vibration and impact generated by the battery 200 during the transfer and processing can act on the weighing mechanism 10 with a lower probability. When the lifting mechanism 30 and the clamping mechanism 20 are separated, the battery 200 can be weighed directly.

[0094] In other words, under the gravity of the clamping mechanism 20 and the battery 200 clamped in the clamping mechanism 20, the clamping mechanism 20 can move to the second position relative to the weighing mechanism 10. Under its own gravity, the clamping mechanism 20 pulls the weighing mechanism 10, thereby achieving weighing. When in the second position, the connection state between the clamping mechanism 20 and the weighing mechanism 10 is defined as a gravity connection.

[0095] According to the battery transfer device 100 of the present application embodiment, the clamping mechanism 20 is movably disposed on the weighing mechanism 10, and the lifting mechanism 30 is adapted to keep the clamping mechanism 20 in a first position or switch it to a second position. In the first position, the battery 200 can be transferred and processed, and in the second position, the battery 200 can be weighed. Under the premise of improving production efficiency, the impact of the clamping mechanism 20 and environmental factors on the weighing mechanism 10 during the processing and transfer of the battery 200 can be reduced, the service life of the weighing mechanism 10 can be extended, and its weighing stability and reliability can be improved, and the weighing accuracy can be improved.

[0096] Combination Figures 6-11 As shown, according to some embodiments of this application, the battery transfer device 100 further includes a floating mechanism 40, which includes a first plate 41, a second plate 42, and a movable connection group 43. The first plate 41 is connected to the weighing mechanism 10, and the second plate 42 is connected to the clamping mechanism 20. The weighing mechanism 10 and the clamping mechanism 20 are correspondingly arranged. The movable connection group 43 is located between the first plate 41 and the second plate 42, and makes the first plate 41 and the second plate 42 movably connected.

[0097] The first plate 41 and the second plate 42 are connected to the weighing mechanism 10 and the clamping mechanism 20, respectively. The first plate 41 and the second plate 42 are movably connected through the movable connection group 43, thereby enabling the weighing mechanism 10 and the clamping mechanism 20 to be movably connected. The clamping mechanism 20 and the weighing mechanism 10 are movably connected through the floating mechanism 40, which simplifies the structure of the battery transfer device 100 and reduces the cost.

[0098] It should be noted that the weighing mechanism 10 and the clamping mechanism 20 are correspondingly arranged. There can be multiple weighing mechanisms 10, each corresponding to a clamping mechanism 20, or the weighing mechanism 10 can have multiple weighing sensors, each corresponding to a clamping mechanism 20. This allows the battery transfer device 100 to simultaneously clamp and weigh multiple batteries 200, improving both weighing and clamping efficiency.

[0099] For example, the weighing mechanism 10 may include a weighing plate, on which multiple sensor mounting positions are provided for multiple weighing sensors. Each sensor mounting position is provided with a weighing sensor, which can simplify the arrangement of weighing sensors, reduce costs, reduce the number of weighing sensor fixing structures, and improve the reliability of the weighing mechanism 10.

[0100] See Figure 7 and Figure 9 As shown, according to some embodiments of this application, the movable connection group 43 includes: a limiting locking pin 431 and a limiting locking groove 432. The limiting locking pin 431 is formed on the first plate 41 or the second plate 42, and the limiting locking groove 432 is correspondingly formed on the second plate 42 or the first plate 41. The limiting locking pin 431 is movably disposed in the limiting locking groove 432. The limiting locking groove 432 has a first groove segment 4321 and a second groove segment 4322. The groove size of the first groove segment 4321 is larger than the groove size of the second groove segment 4322, so that when the limiting locking pin 431 is in the first groove segment 4321, the first plate 41 and the second plate 42 are movably connected.

[0101] In some embodiments, a limiting locking pin 431 is formed on a first plate 41, and a limiting locking groove 432 is formed on a second plate 42. In other embodiments, the limiting locking pin 431 is formed on the second plate 42, and the limiting locking groove 432 is formed on the first plate 41. The limiting locking groove 432 has a first groove segment 4321 and a second groove segment 4322 arranged sequentially in a third direction. The first groove segment 4321 is located below, and the second groove segment 4322 is located above. When the clamping mechanism 20 is in the first position, the limiting locking pin 431 is located within the first groove segment 4321, and the opening size of the first groove segment 4321 is larger than the opening size of the second groove segment 4322, so that the limiting locking pin 431 is in a position where... When in the first slot 4321, the first plate 41 and the second plate 42 are in a movable connection state, and the weighing mechanism 10 can move relative to the clamping mechanism 20. At this time, the two are in a "separated state" to reduce the transmission of vibration and impact to the weighing mechanism 10, improve the working stability and reliability of the weighing mechanism 10, and extend its service life. In the second position, the limit locking pin 431 is in the second slot 4322. It can not only realize the weighing function, but also realize the movement limit between the first plate 41 and the second plate 42 through the cooperation of the limit locking pin 431 and the second slot 4322, reduce the shaking of the clamping mechanism 20 and the battery 200, and improve the weighing accuracy.

[0102] It should be noted that the limiting locking pin 431 can be a cylindrical pin, a prism pin, etc., and the corresponding second groove segment 4322 is a cylindrical groove or a prism groove, and the outer diameter of the two is the same. The first groove segment 4321 only needs to be constructed to be larger than the first groove segment 4321. Its specific shape is not specifically limited in this application.

[0103] like Figures 1-5 As shown, according to some embodiments of this application, the battery transfer device 100 further includes a platform 50 and a moving mechanism 60, the moving mechanism 60 being connected to the lifting mechanism 30 and movably disposed on the platform 50.

[0104] Specifically, the moving mechanism 60 is connected to the platform 50. The moving mechanism 60 can drive the lifting mechanism 30 to move, so as to realize the synchronous movement of the lifting mechanism 30, the weighing mechanism 10 and the clamping mechanism 20. This enables the transfer of the clamped battery 200, reduces the difficulty of transfer, and allows the position of the battery 200 to be adjusted. For example, during liquid injection processing, it makes it easier to align the battery 200 with the liquid injection equipment. Before clamping the battery 200, the position of the clamping mechanism 20 can be adjusted by the moving mechanism 60 to facilitate the clamping mechanism 20 in clamping the battery 200, thereby improving the ease of use of the battery transfer device 100.

[0105] It should be noted that the moving mechanism 60 can drive the gripping mechanism 20 to move along the first direction, and there are multiple gripping mechanisms 20, which can be arranged sequentially in the second direction.

[0106] Combination Figure 3 and Figure 4 As shown, according to some embodiments of this application, the stand 50 has a clamping station 51, the clamping station 51 is provided with a first lifting mechanism 53 and a first tray 54, the battery 200 is adapted to be placed in the first tray 54, and the first lifting mechanism 53 is adapted to lift the first tray 54, and the clamping mechanism 20 is adapted to clamp the battery 200 in the first tray 54.

[0107] Specifically, the first tray 54 is suitable for placing batteries 200, and the batteries 200 can be arranged in an array within the first tray 54. The moving mechanism 60 can drive the clamping mechanism 20 to move along a first direction to clamp the batteries 200 in rows along the first direction. Each row of clamped batteries 200 can be processed first and then weighed, or weighed first, then processed, and then weighed again, etc. The clamping station 51 can be equipped with a transmission belt, roller assembly, etc., as a transmission structure to enable the first tray 54 to move quickly to the clamping station 51. The clamping station 51 can be equipped with a separate clamping frame. A first lifting mechanism 53 is provided to drive the first tray 54 to switch between a lifting position and a reset position. When it is necessary to clamp the battery 200, the first lifting mechanism 53 drives the first tray 54 to the clamping position to facilitate the clamping of the battery 200. After processing is completed, the first lifting mechanism 53 can also drive the first tray 54 to the clamping position to facilitate the placement of the processed or weighed battery 200 back into the first tray 54. This improves processing convenience and efficiency, while also reducing the probability of damage to the battery 200 during the handling process.

[0108] Combination Figure 3 , Figure 4 and Figure 5 As shown, according to some embodiments of this application, the test stand 50 also has a testing station 52, the testing station 52 is provided with a second lifting mechanism 55 and a second tray 56, the second tray 56 is adapted to place the testing weight 57, and the second lifting mechanism 55 is adapted to lift the second tray 56.

[0109] Specifically, the testing station 52 and the clamping station 51 can be arranged sequentially in the first direction. The moving mechanism 60 can drive the clamping mechanism 20 to move between the testing station 52 and the clamping station 51. The second tray 56 is suitable for placing the testing weights 57. The testing weights 57 can be arranged in rows in the second tray 56. A testing frame can be set separately on the testing station 52. A second lifting mechanism 55 is set on the testing frame to drive the second tray 56 to switch between the lifting position and the reset position. When it is necessary to clamp the testing weights 57, the second lifting mechanism 55 drives the second tray 56 to the clamping position to facilitate the clamping of the testing weights 57. After the testing and calibration are completed, the second lifting mechanism 55 can also drive the second tray 56 to the clamping position to facilitate the return of the used testing weights 57 to the second tray 56. This improves the convenience and efficiency of testing, and also reduces the probability of damage to the testing weights 57 during the handling process.

[0110] According to some embodiments of this application, there are multiple detection weights 57, and the weights of the multiple detection weights 57 increase sequentially. Each clamping mechanism 20 is suitable for clamping one detection weight 57, and the multiple clamping mechanisms 20 clamp detection weights 57 of different weights respectively.

[0111] For example, multiple detection weights 57 can be arranged in steps of 1kg, 1.2kg, 1.4kg, and 1.6kg. At the detection station 52, multiple weighing sensors can read the detection weight of the corresponding detection weight 57. When the difference between the detection weight of one of them and the calibrated weight is greater than the preset difference range, it can be determined that the weighing sensor is faulty and needs to be calibrated, which can reduce the difficulty of calibration and reduce labor costs.

[0112] Understandably, by setting a stepped weight, the weight readings of multiple weighing sensors corresponding to the stepped weight will also roughly form stepped readings, such as 1kg, 1.21kg, 1.39kg, 1.6kg, etc. When multiple weight readings are out of order, it can be determined that one or more weighing sensors have a wiring error, which can further reduce the difficulty of calibration and maintenance.

[0113] like Figure 6 and Figure 8 As shown, according to some embodiments of this application, the lifting mechanism 30 includes a lifting cylinder 31 and a support plate 32. The support plate 32 is optionally connected to the clamping mechanism 20. The cylinder body of the lifting cylinder 31 is connected to the moving mechanism 60, and the piston rod of the lifting cylinder 31 is connected to the support plate 32.

[0114] In some embodiments, the cylinder body of the lifting cylinder 31 is connected to the moving mechanism 60. Multiple connecting plates may be provided on the cylinder body and connected to the weighing mechanism 10 through the connecting plates, so that the weighing mechanism 10 and the lifting mechanism 30 can move synchronously. The piston rod of the lifting cylinder 31 is connected to the support plate 32. The support plate 32 is located below the weighing mechanism 10 and is adapted to move upward under the drive of the piston rod to support the clamping mechanism 20, or move away from the clamping mechanism 20, so that the clamping mechanism 20 switches to a second position.

[0115] It should be noted that the stroke of the piston rod needs to be greater than the stroke of the clamping mechanism 20 when switching between the first position and the second position.

[0116] In other embodiments, the support plate 32 may include an upper plate, a middle plate, and a lower plate arranged opposite each other in a third direction. There may be multiple upper plates, middle plates, and lower plates. The upper plate is connected to the moving mechanism 60 and the weighing mechanism 10. A lifting cylinder 31 may be provided between the middle plate and the upper plate. A guide column may be provided between the upper plate and the lower plate to achieve motion guidance. The middle plate and the lower plate move synchronously relative to the upper plate and can be supported by the clamping mechanism 20 through the lower plate, which can improve the structural stability and reliability of the lifting mechanism 30.

[0117] The support plate 32 can be provided with a pin or slot structure, and the corresponding clamping mechanism 20 can be provided with a slot or pin structure. The support stability and reliability of the lifting mechanism 30 to the clamping mechanism 20 can be improved by the insertion and cooperation of the pin and the slot.

[0118] It is understood that the support plate 32 of the lifting mechanism 30 can move along the height direction to support or release the clamping mechanism 20. All feasible structures are optional forms of the lifting mechanism 30 in this application, and this application does not make specific limitations.

[0119] like Figure 1 and Figure 2 As shown, according to some embodiments of this application, the moving mechanism 60 includes a moving track 61 and a slider 62. The moving track 61 extends along a first direction, and the slider 62 is movably disposed on the moving track 61. The slider 62 is connected to the lifting mechanism 30 and the weighing mechanism 10. A plurality of weighing mechanisms 10 are arranged sequentially in a second direction having an angle with the first direction.

[0120] Specifically, there can be one or more moving tracks 61, and one or more corresponding sliders 62. The sliders 62 are slidably disposed on the moving track 61 and are used to connect to the lifting mechanism 30 so that the lifting mechanism 30 can be movably disposed on the moving track 61. The sliders 62 can be connected to a power source, such as: one of the moving tracks 61 and one slider 62 are configured as a screw and nut transmission assembly, so that the slider 62 is driven by a motor to adjust its relative position along the first direction on the moving track 61, thereby realizing the relative position adjustment of the lifting mechanism 30, the clamping mechanism 20 and the weighing mechanism 10.

[0121] It is understandable that the moving mechanism 60 drives the lifting mechanism 30 to adjust its position along the first direction. This can be done within the clamping station 51 to adjust the relative position for easy picking up and putting down of the battery 200, or it can be done by switching between the clamping station 51 and the detection station 52 to switch between the battery 200 clamping operation and the weighing mechanism 10 calibration, thereby improving the ease of use of the weighing clamping equipment.

[0122] like Figure 10 and Figure 11 As shown, according to some embodiments of this application, the clamping mechanism 20 includes: a clamping plate 21, a clamping cylinder 22, and a clamping claw 23. There are at least two clamping claws 23, which are connected to the clamping cylinder 22 and are adapted to clamp or release the battery 200 under the drive of the clamping cylinder 22.

[0123] Specifically, the gripping plate 21 is connected to the floating mechanism 40, that is, the gripping plate 21 is connected to the second plate 42. The gripping cylinder 22 can drive the gripper 23 to move so that multiple grippers 23 move toward or away from each other to adjust the size of the gripping space, realize the gripping and release of batteries 200 of different sizes and detection weights 57 of different sizes, and improve the gripping stability and reliability of the gripping mechanism 20 for batteries 200 and detection weights 57.

[0124] For example, there can be two grippers 23, which are set on a drive plate. The drive plate can be provided with a slide groove. The grippers 23 are set in a wedge-shaped block that can slide in the slide groove. The cylinder rod of the gripping cylinder 22 is constructed in a wedge shape and is adapted to push the wedge block so that the movement of the cylinder rod in the third direction is switched to the movement of the two grippers 23 toward or away from each other in the second direction, reducing the difficulty of adjusting the size of the gripping space.

[0125] like Figure 4 and Figure 5As shown, according to some embodiments of this application, the battery transfer device 100 further includes: an air supply mechanism 70, a clamping plate 21 for fixing the clamping cylinder 22, and a clamping air passage connected to the clamping cylinder 22 is provided in the clamping plate 21. The air supply mechanism 70 can be selectively connected to the clamping air passage, and the clamping air passage is constructed as a self-locking air passage.

[0126] Specifically, the air supply mechanism 70 can be equipped with a separate drive unit, and the air supply mechanism 70 can be installed on the lifting mechanism 30, so that the air supply mechanism 70 can move towards or away from the clamping plate 21 under the drive of its own drive unit. A clamping air passage can be formed on the clamping plate 21, and the clamping air passage is connected to the clamping cylinder 22. Through the connection between the air supply mechanism 70 and the clamping air passage, the position of the cylinder rod of the clamping cylinder 22 can be adjusted. After the adjustment is completed, the air supply mechanism 70 is disengaged from the clamping air passage, but the clamping air passage becomes a self-locking air passage, so that the gripper 23 can be in the current position to achieve self-locking.

[0127] In this way, on the one hand, the air supply mechanism 70 can be separated from the clamping mechanism 20 during weighing, which can avoid the influence of vibration and impact of the air supply mechanism 70 on the weighing mechanism 10. On the other hand, during the weighing process, the weighing mechanism 10 weighs the total weight of the clamping mechanism 20 and the battery 200, or the total weight of the clamping mechanism 20 and the detection weight 57, which can reduce the influence of environmental factors on the weighing structure and improve the weighing accuracy.

[0128] The clamping air circuit has a supply air circuit and a cut-off air circuit connected to the clamping air cylinder 22. Both the supply air circuit and the cut-off air circuit are equipped with a one-way valve. The one-way valve can be triggered by the air supply mechanism 70 to achieve self-locking when the air supply mechanism 70 is disengaged from the clamping plate 21. When the air supply mechanism 70 cooperates with the clamping plate 21, it can supply or exhaust air to clamp or release the battery 200.

[0129] like Figure 12 As shown, in a second aspect, this application provides a control method for a battery transfer device 100, the control method including: a battery 200 weighing method, the battery 200 weighing method including:

[0130] The moving mechanism 60 drives the clamping mechanism 20 to move to the clamping station 51. The clamping station 51 can be a placement station for the battery 200 after a certain process is completed, such as a placement station for the battery 200 after one liquid injection or a placement station for the battery 200 after formation. It can also be a specific station for placing the battery 200 and waiting for the battery transfer device 100 to transfer or support the battery 200.

[0131] The first tray 54 is raised to the clamping position, and the air supply mechanism 70 supplies air to the clamping mechanism 20 so that the clamping mechanism 20 can clamp the battery 200.

[0132] The lifting mechanism 30 and the air supply mechanism 70 disengage from the clamping mechanism 20, and the clamping mechanism 20 is switched to the second position, and the first tray 54 is reset.

[0133] The weighing mechanism 10 weighs the battery 200.

[0134] According to the control method of the embodiments of this application, under the premise of weighing the battery 200, the impact on the weighing mechanism 10 during the transfer and processing can be reduced, the working stability of the weighing clamping fixture can be improved, and its service life can be increased.

[0135] According to some embodiments of this application, the battery 200 weighing method further includes:

[0136] The lifting mechanism 30 and the air supply mechanism 70 are reset to be connected to the clamping mechanism 20, so that the clamping mechanism 20 is switched to the first position, the air supply mechanism 70 supplies air, and the first tray 54 is lifted to the clamping position.

[0137] The moving mechanism 60 drives the clamping mechanism 20 to move along the second direction and repeats the weighing process.

[0138] This can improve the weighing efficiency of battery 200.

[0139] According to some embodiments of this application, the control method further includes: a calibration method for the weighing mechanism 10, the calibration method for the weighing mechanism 10 including:

[0140] The moving mechanism 60 drives the clamping mechanism 20 to move to the workstation;

[0141] The second tray 56 is raised to the clamping position, the gas supply mechanism 70 supplies gas, and the clamping mechanism 20 clamps the test weight 57.

[0142] The lifting mechanism 30 disengages from the clamping mechanism 20 and switches the clamping mechanism 20 to the second position. The air supply mechanism 70 disengages from the clamping mechanism 20, and the second tray 56 is reset.

[0143] Weighing mechanism 10 weighs weight 57.

[0144] The weighing value of the weighing mechanism 10 is compared with the calibration value of the test weight 57. If the difference exceeds the preset difference range, a calibration alarm is issued.

[0145] Below, refer to Figures 1-11 The specific structure of the battery transfer device 100 according to the embodiments of this application will be described in detail.

[0146] The weighing clamping device includes: a weighing mechanism 10, a clamping mechanism 20, a lifting mechanism 30, a moving mechanism 60, a floating mechanism 40, a platform 50, and an air supply mechanism 70.

[0147] The weighing mechanism 10 may include a sensor fixing structure (e.g., a fixing plate) and a plurality of weighing sensors disposed on the sensor fixing structure, the number of weighing sensors being the same as the number of clamping mechanisms 20.

[0148] The clamping mechanism 20 includes a clamping plate 21, a clamping cylinder 22, and a gripper 23. The clamping plate 21 is connected to the floating mechanism 40. The clamping cylinder 22 is used to drive the gripper 23. A clamping air passage is formed in the clamping plate 21. The clamping air passage is connected to the air supply mechanism 70 and the clamping cylinder 22.

[0149] The lifting mechanism 30 includes a lifting cylinder 31 and a support plate 32. The support plate 32 is connected to the clamping plate 21 of the clamping mechanism 20 and is used to support the clamping mechanism 20 in a first position or release the clamping mechanism 20 so that it can move to a second position under the action of gravity. The lifting cylinder 31 can be fixed to the moving mechanism 60 and the weighing mechanism 10 by means of the cylinder body or by setting some connecting plate structures.

[0150] The moving mechanism 60 may include a moving guide rail and a slider 62. The slider 62 is connected to the lifting mechanism 30. At least one set of moving guide rails and sliders 62 are configured as transmission components (such as lead screw and nut, gear and rack) and power is transmitted through a drive motor.

[0151] The floating mechanism 40 may include a first plate 41 and a second plate 42. The first plate 41 and the second plate 42 are respectively connected to the weighing mechanism 10 and the clamping mechanism 20. A limiting locking pin 431 and a limiting locking groove 432 are provided between the first plate 41 and the second plate 42. The limiting locking pin 431 and the limiting locking groove 432 can realize the movable connection between the weighing mechanism 10 and the clamping mechanism 20 in the first position and the gravity connection between the weighing mechanism 10 and the clamping mechanism 20 in the second position.

[0152] It should be noted that the load cell can be fixed to the lifting mechanism 30 by the sensor mounting plate. A floating mounting plate is set below the load cell. The floating mounting plate is connected to the first plate 41, and the second plate 42 is connected to the clamping plate 21.

[0153] The frame 50 can be equipped with a gripper and a testing frame. The gripper has a roller structure or a conveyor belt structure for the transfer of the first tray 54. The first tray 54 can be equipped with a battery 200. The gripper is equipped with a second tray 56, and the second tray 56 holds the testing weights 57.

[0154] According to the battery transfer device 100 of this application embodiment, during the clamping, transfer and processing of the battery 200, the weighing mechanism 10 and the clamping mechanism 20 can be disengaged, reducing the impact of the clamping mechanism 20 and environmental factors on the weighing mechanism 10, extending the service life of the weighing mechanism 10, improving working stability and detection accuracy. The clamping mechanism 20 can achieve self-locking clamping, which can reduce the influence of the power source and other structures on the weighing mechanism 10, further improving weighing accuracy. Moreover, the weighing mechanism 10 can be calibrated by the detection weights 57 with stepped weight settings, achieving automatic calibration, reducing calibration difficulty, and when wiring errors occur between multiple weighing sensors, they can be intuitively detected through calibration, reducing detection difficulty.

[0155] Below, refer to Figure 12 and Figure 13 The weighing and calibration processes of the battery transfer device 100 according to the embodiments of this application will be described in detail.

[0156] like Figure 12 As shown, the specific steps of the weighing process are as follows:

[0157] Step 1: Place battery 200 in the first tray 54 and move it to the clamping station 51;

[0158] Step 2: The first lifting mechanism 53 lifts the first pallet 54 to the lifting position, and before the first pallet 54 reaches the lifting position, the air nozzle (air supply nozzle and air cut-off nozzle) of the air supply mechanism 70 is connected to the clamping plate 21 of the clamping mechanism and forms a seal.

[0159] Step 3: The air supply nozzle of the air supply mechanism 70 supplies air to the clamping cylinder, the gripper 23 clamps the battery 200, and the first tray 54 resets.

[0160] Step 4: The air supply mechanism 70 disengages from the clamping plate 21, and the clamping air passage and clamping cylinder 22 self-lock to maintain the clamping state.

[0161] Step 5: The lifting cylinder 31 of the lifting mechanism 30 drives the pallet 32 ​​to disengage from the clamping mechanism 20, and the limit locking pin 431 on the lifting mechanism 30 is released from the clamping plate 21 (which can be synchronized with the descent of the first pallet 54). The limit locking pin 431 enters the second groove section 4322, and the weighing sensor starts weighing.

[0162] Step Six: The limiting lock pin 431 completely disengages from the first slot segment 4321, and the limiting lock pin 431 enters the end of the path of the second slot segment 4322. The first plate 41 and the second plate 42 are connected by the limiting lock pin 431. The weighing result of the load cell at this time is: weight of battery 200 + weight of clamping mechanism + weight of floating mechanism 40. Among them, (weight of clamping mechanism + weight of floating mechanism 40) can be obtained before clamping battery 200, that is, weight of battery 200 = (weight of battery 200 + weight of clamping mechanism + weight of floating mechanism 40) - (weight of clamping mechanism + weight of floating mechanism 40);

[0163] Step 7: The lifting cylinder 31 drives the pallet 32 ​​to return to the supporting clamping plate 21. The limiting lock pin 431 enters the first groove 4321 from the second groove 4322 (the first groove 4321 is not limited to a square shape; the space is larger than the size of the limiting lock pin 431, and it does not need to contact it). The first tray 54 moves to the lifting position. The air nozzles (supply nozzle and shut-off nozzle) of the air supply mechanism 70 cooperate with the air supply plate of the clamping mechanism to form a seal. The shut-off nozzle of the air supply mechanism 70 supplies air to the clamping cylinder. The gripper 23 releases the battery 200, and the battery 200 falls into the first tray 54. The weighing is completed.

[0164] Step 8: The first tray 54 is reset, the air supply mechanism 70 disengages from the gripping plate 21, and the gripper 23 self-locks and remains open.

[0165] Step 9: The moving mechanism 60 drives the clamping mechanism 20 and the weighing mechanism 10 to move along the first direction to the top of the next row of batteries to be weighed 200, and repeats steps 2 to 7.

[0166] Step 10: After all batteries 200 in the first tray 54 have been weighed, the transmission structure on the platform 50 is activated, and the first tray 54 and batteries 200 overflow from the platform 50.

[0167] like Figure 13 As shown, the specific steps of the calibration process are as follows:

[0168] Step 1: The moving mechanism 60 drives the weighing mechanism 10 and the clamping mechanism 20 to move along the first direction to directly above the standard weight;

[0169] Step 2: The second lifting mechanism 55 drives the second tray 56 to the lifting position, and before the second pusher reaches the lifting position, the air nozzle (air supply nozzle and air cut-off nozzle) of the air supply mechanism 70 is connected to the clamping plate 21 of the clamping mechanism and forms a seal.

[0170] Step 3: The air supply nozzle of the air supply mechanism 70 supplies air to the clamping cylinder, the gripper 23 clamps the detection weight 57, and the second tray 56 is reset.

[0171] Step 4: The air supply mechanism 70 disengages from the clamping plate 21, and the clamping air passage and clamping cylinder 22 self-lock to maintain the clamping state.

[0172] Step 5: The lifting cylinder 31 of the lifting mechanism 30 drives the pallet 32 ​​to disengage from the clamping mechanism 20, the pin on the lifting mechanism 30 is released from the clamping plate 21 (which can be synchronized with the descent of the second pallet 56), the limit locking pin 431 enters the second groove section 4322, and the weighing sensor starts weighing.

[0173] Step Six: The pin completely disengages from the air supply plate, and the limit locking pin 431 enters the end of the path of the second groove section 4322. The first plate 41 and the second plate 42 are connected by the limit locking pin 431. The weighing result of the load cell at this time is: weight of the detection weight 57 + weight of the clamping mechanism + weight of the floating mechanism 40. Among them, (weight of the clamping mechanism + weight of the floating mechanism 40) can be obtained before clamping the detection weight 57, that is, weight of the detection weight 57 = (weight of the detection weight 57 + weight of the clamping mechanism + weight of the floating mechanism 40) - (weight of the clamping mechanism + weight of the floating mechanism 40);

[0174] Step 7: The lifting cylinder 31 drives the pallet 32 ​​to return to the supporting clamping plate 21. The limiting lock pin 431 enters the first groove 4321 from the second groove 4322 (the first groove 4321 is not limited to a square shape; the space is larger than the size of the limiting lock pin 431, and it does not need to contact it). The second tray 56 moves to the lifting position. The air nozzles (supply nozzle and shut-off nozzle) of the air supply mechanism 70 cooperate with the air supply plate of the clamping mechanism to form a seal. The shut-off nozzle of the air supply mechanism 70 supplies air to the clamping cylinder. The gripper 23 releases the detection weight 57. The detection weight 57 falls into the second tray 56, and the weighing is completed.

[0175] Step 8: Record the weighing results of each test weight 57, compare the detected weight of each weighing sensor with the pre-input calibrated weight of the test weight 57, and if the difference exceeds the preset difference range, issue a calibration alarm.

[0176] According to the control method of the embodiments of this application, the weighing efficiency of the battery 200 can be improved, and all batteries 200 in the first tray 54 can be weighed quickly and accurately. It can also be used to calibrate the weighing sensor, reduce the calibration difficulty, and improve the weighing accuracy.

[0177] Other configurations and operations of the battery transfer device 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0178] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0179] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery transfer device, characterized in that, include: A weighing mechanism (10) adapted to weigh a battery (200); A clamping mechanism (20) adapted to clamp a battery (200), the clamping mechanism (20) being movably connected to the weighing mechanism (10) and having a first position and a second position relative to the weighing mechanism (10); A lifting mechanism (30) is connected to the weighing mechanism (10) and can selectively support the clamping mechanism (20) so that the clamping mechanism (20) is in the first position and is adapted to drive the clamping mechanism (20) and the weighing mechanism (10) to move synchronously. in In the first position, the clamping mechanism (20) is movably connected to the weighing mechanism (10), and in the second position, the clamping mechanism (20) is gravity-connected to the weighing mechanism (10) to weigh the battery (200).

2. The battery transfer device according to claim 1, characterized in that, Also includes: A floating mechanism (40) is provided, comprising a first plate (41), a second plate (42), and a movable connecting group (43). The first plate (41) is connected to the weighing mechanism (10), and the second plate (42) is connected to the clamping mechanism (20). The weighing mechanism (10) and the clamping mechanism (20) are correspondingly arranged. The movable connecting group (43) is located between the first plate (41) and the second plate (42) and enables the first plate (41) and the second plate (42) to be movably connected.

3. The battery transfer device according to claim 2, characterized in that, The movable connection group (43) includes a limiting locking pin (431) and a limiting locking groove (432). The limiting locking pin (431) is formed on the first plate (41) or the second plate (42), and the limiting locking groove (432) is formed on the second plate (42) or the first plate (41). The limiting locking pin (431) is movably disposed in the limiting locking groove (432). The limiting locking groove (432) has a first groove segment (4321) and a second groove segment (4322). The groove size of the first groove segment (4321) is larger than the groove size of the second groove segment (4322) so that when the limiting locking pin (431) is in the first groove segment (4321), the first plate (41) and the second plate (42) are movably connected.

4. The battery transfer device according to any one of claims 1-3, characterized in that, Also includes: The platform (50) and the moving mechanism (60) are connected to the lifting mechanism (30) and the moving mechanism (60) is movably disposed on the platform (50).

5. The battery transfer device according to claim 4, characterized in that, The stand (50) has a clamping station (51), the clamping station (51) is provided with a first lifting mechanism (53) and a first tray (54), the battery (200) is adapted to be placed on the first tray (54), and the first lifting mechanism (53) is adapted to lift the first tray (54), and the clamping mechanism (20) is adapted to clamp the battery (200) in the first tray (54).

6. The battery transfer device according to claim 4, characterized in that, The test stand (50) also has a testing station (52), which is provided with a second lifting mechanism (55) and a second tray (56). The second tray (56) is suitable for placing testing weights (57), and the second lifting mechanism (55) is suitable for lifting the second tray (56).

7. The battery transfer device according to claim 6, characterized in that, There are multiple detection weights (57), and the weights of the multiple detection weights (57) increase sequentially. Each clamping mechanism (20) is adapted to clamp one detection weight (57), and the multiple clamping mechanisms (20) clamp detection weights (57) of different weights respectively.

8. The battery transfer device according to claim 4, characterized in that, The lifting mechanism (30) includes a lifting cylinder (31) and a support plate (32). The support plate (32) is selectively connected to the clamping mechanism (20). The cylinder body of the lifting cylinder (31) is connected to the moving mechanism (60), and the piston rod of the lifting cylinder (31) is connected to the support plate (32).

9. The battery transfer device according to claim 4, characterized in that, The moving mechanism (60) includes a moving track (61) and a slider (62). The moving track (61) extends along a first direction, and the slider (62) is movably disposed on the moving track (61). The slider (62) is connected to the lifting mechanism (30) and the weighing mechanism (10). A plurality of the weighing mechanisms (10) are arranged sequentially in a second direction having an angle with the first direction.

10. The battery transfer device according to any one of claims 1-3, characterized in that, The clamping mechanism (20) includes a clamping plate (21), a clamping cylinder (22), and clamping claws (23). There are at least two clamping claws (23), which are connected to the clamping cylinder (22) and are adapted to clamp or release the battery (200) under the drive of the clamping cylinder (22).

11. The battery transfer device according to claim 10, characterized in that, Also includes: The air supply mechanism (70) is provided with a clamping plate (21) for fixing the clamping cylinder (22), and the clamping plate (21) is provided with a clamping air passage connected to the clamping cylinder (22). The air supply mechanism (70) can be selectively connected to the clamping air passage, and the clamping air passage is constructed as a self-locking air passage.

12. A control method for a battery transfer device, the control method being suitable for controlling the battery transfer device according to any one of claims 1-11, characterized in that, The control method includes: a battery (200) weighing method, wherein the battery (200) weighing method includes: The moving mechanism (60) drives the clamping mechanism (20) to move to the clamping station (51); The first tray (54) is raised to the clamping position, and the air supply mechanism (70) supplies air to the clamping mechanism (20) so that the clamping mechanism (20) can clamp the battery (200); The lifting mechanism (30), the air supply mechanism (70) and the clamping mechanism (20) are disengaged, and the clamping mechanism (20) is switched to the second position, and the first tray (54) is reset; The weighing mechanism (10) weighs the battery (200).

13. The control method for the battery transfer device according to claim 12, characterized in that, The battery (200) weighing method further includes: The lifting mechanism (30) and the air supply mechanism (70) are reset to be connected to the clamping mechanism (20) so that the clamping mechanism (20) switches to the first position and the first tray (54) is raised to the clamping position; The moving mechanism (60) drives the clamping mechanism (20) to move along the second direction and repeat the weighing process.

14. The control method for the battery transfer device according to claim 12, characterized in that, The control method further includes: a calibration method for the weighing mechanism (10), the calibration method for the weighing mechanism (10) including: The moving mechanism (60) drives the clamping mechanism (20) to move to the workstation; The second tray (56) is raised to the clamping position, the gas supply mechanism (70) supplies gas, and the clamping mechanism (20) clamps the test weight (57); The lifting mechanism (30) disengages from the clamping mechanism (20) and switches the clamping mechanism (20) to the second position. The air supply mechanism (70) disengages from the clamping mechanism (20), and the second tray (56) is reset. The weighing mechanism (10) weighs the test weight (57); The weighing value of the weighing mechanism (10) is compared with the calibration value of the test weight (57). If the difference exceeds the preset difference range, a calibration alarm is issued.

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