Fixture, warm isostatic pressing device, centrifugal device, and battery production line

Abstract

A fixture (200), a warm isostatic pressing device, a centrifugal device, and a battery production line. The fixture (200) comprises a material frame (10) and a clamping assembly (20); the clamping assembly (20) is fixed in the material frame (10); the clamping assembly (20) comprises at least two clamping plates (21), all the clamping plates (21) are arranged at intervals in a first direction, and an accommodating space (29) for placing a processed member (90) is formed between every two adjacent clamping plates (21); each clamping plate (21) can float in the first direction, so as to adjust the width of the accommodating space (29) in which the clamping plate (21) is located; the first direction is a normal direction of plate surfaces of the clamping plates (21); the material frame (10) comprises support members (11) and at least two cover plates (12); and all the cover plates (12) are oppositely arranged at intervals in a vertical direction, the support members (11) are supported between two adjacent cover plates (12), the area between the two adjacent cover plates (12) forms a placement space (13), and the clamping assembly (20) is erected in the placement space (13).

Description

Clamp, warm isostatic pressing device, centrifugal device and battery production line

[0001] Related Applications

[0002] The present application claims priority to the Chinese patent application No. 2024215799213, filed on July 5, 2024, and entitled “Warm Isostatic Pressing Clamp and Battery Production Line”, the contents of which are hereby incorporated by reference in its entirety.

[0003] The present application claims priority to the Chinese patent application No. 2024215785456, filed on July 5, 2024, and entitled “Centrifugal Device and Battery Production Line”, the contents of which are hereby incorporated by reference in its entirety. TECHNICAL FIELD

[0004] The present application relates to the technical field of batteries, in particular to a clamp, a warm isostatic pressing device, a centrifugal device and a battery production line. BACKGROUND

[0005] At present, from the development of market situation, the application of power battery is more and more widely. The power battery is not only applied to the energy storage power supply system of hydraulic, thermal, wind and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, as well as aerospace and other fields. With the continuous expansion of the application field of power battery, the demand of its market is also increasing.

[0006] At present, the battery manufacturer produces battery cells by using isostatic pressing process, and lacks a clamp, so that the battery cells are prone to inconsistent plastic deformation defects under high temperature and high pressure environment.

[0007] SUMMARY

[0008] Therefore, it is necessary to provide a clamp, a warm isostatic pressing device, a centrifugal device and a battery production line for the problem of inconsistent plastic deformation.

[0009] The first aspect of the present application provides a clamp, comprising: a material frame; and a material clamping assembly fixed in the material frame; the material clamping assembly comprises at least two material clamping plates, all the material clamping plates are arranged at intervals along a first direction, and a containing space for placing a processing piece is formed between each adjacent two material clamping plates; each material clamping plate can float along the first direction to adjust the width of the containing space where it is located; the first direction is the normal direction of the plate surface of the material clamping plate; the material frame comprises a support and at least two cover plates; all the cover plates are arranged at intervals relative to each other along a vertical direction, the support is supported between the adjacent two cover plates, a region between the adjacent two cover plates is formed as a placement space, and the material clamping assembly is erected in the placement space.

[0010] Thus, by fixing the material clamping assembly in the material frame, the working medium of the warm isostatic pressing process flows into the material frame from all around and contacts the material clamping assembly, the accommodation space for placing the processed piece is formed between the two adjacent material clamping plates, the material clamping plate can be fixedly clamped in the first direction and the processed piece is kept flat, so that the surface of the processed piece is uniformly stressed in the isostatic pressing process, and the processed piece can be corrected by the material clamping plate, so that the processed piece is overall flat and uniformly stressed; in addition, as the warm isostatic pressing process proceeds, the size of the processed piece often shrinks to a certain extent, the material clamping plate can float in the first direction, so that the material clamping plate can always fixedly clamp the processed piece and avoid free shaking, so that the processed piece can bear greater pressure and ensure uniform plastic deformation in the process of the warm isostatic pressing process.

[0011] In one of the embodiments, the material clamping assembly comprises a plurality of sliding rods; each of the material clamping plates is formed with a plurality of sliding holes corresponding to the sliding rods, and each of the sliding rods sequentially penetrates all the material clamping plates in the first direction. Thus, all the material clamping plates are connected in series by the sliding rods, and each of the material clamping plates can slide on the sliding rod according to the pressure feedback through the sliding hole, and the deflection of the material clamping plate can be effectively avoided by the guidance of the sliding rod.

[0012] In one of the embodiments, the material clamping assembly comprises a plurality of elastic members, each of which is sleeved on a corresponding sliding rod; one end of the elastic member abuts against the end of the sliding rod, and the other end of the elastic member abuts against the outermost material clamping plate of the material clamping assembly. Thus, the two ends of the elastic member act between the sliding rod and the material clamping plate, so that the material clamping plate can be subjected to a certain pre-tightening force, thereby ensuring that the material clamping plate can be fixedly clamped in the first direction and the processed piece is kept flat, and thereby ensuring that the surface of the processed piece is uniformly stressed in the isostatic pressing process.

[0013] In one of the embodiments, the material clamping plate is a square plate, a circular plate or an elliptical plate; and / or the material clamping plate is made of one of stainless steel and polytetrafluoroethylene material.

[0014] In one of the embodiments, the material clamping assembly comprises a plurality of blocking strips; each of the material clamping plates is provided with two blocking strips on the plate surface, and the two blocking strips are parallel to each other and oppositely spaced. Thus, by providing the two blocking strips parallel to each other and oppositely spaced on the plate surface of each of the material clamping plates, when the processed piece is reduced in size under pressure, the blocking strips protrude from the plate surface of the material clamping plate, so that the processed piece can be limited and prevented from sliding out of the through accommodation space.

[0015] In one of the embodiments, the cover plate is provided with a plurality of hollow holes. In this way, when the clamping assembly is fixed in the frame, the high-temperature and high-pressure working medium flows into the frame from all directions and contacts the clamping assembly, so as to perform the warm isostatic pressing process. The workpiece is fixed and clamped by the clamping plate, remains flat, and after the warm isostatic pressing process is completed, the working medium in the frame flows out from all directions and the hollow holes of the cover plate by gravity, avoiding residue and facilitating the operator to take out the clamping assembly and the workpiece.

[0016] In one of the embodiments, the frame comprises a plurality of fixing members, which are arranged on the plate surface of the cover plate facing the accommodation space; and the two ends of the clamping assembly are fixed with the fixing members on the two cover plates, respectively. In this way, one end of all the clamping plates is in contact with the upper cover plate and is limited by the fixing member on the upper cover plate to prevent deflection; the other end of all the clamping plates is in contact with the other lower cover plate and is limited by the fixing member on the lower cover plate to prevent deflection, so that the clamping assembly is finally erected in the accommodation space in the frame, ensuring that the clamping assembly, the workpiece and the frame are relatively fixed and do not shake.

[0017] In one of the embodiments, the fixing member comprises two L-shaped fixing strips arranged opposite to each other to form a U-shaped limiting structure. In this way, the two fixing strips are arranged opposite to each other on the plate surface of the cover plate facing the accommodation space, and the two fixing strips form a U-shaped limiting structure, so that the fixing member can limit the end of the clamping assembly from three directions of the front side, the right side and the left side, and the clamping assembly can effectively avoid shaking when fixed in the frame through the U-shaped limiting structure.

[0018] In one of the embodiments, the fixing member comprises a stop block arranged on the plate surface of the cover plate facing the accommodation space, and the stop block is located at the opening side of the U-shaped limiting structure. In this way, by arranging the stop block on the plate surface of the cover plate facing the accommodation space and locating the stop block at the opening side of the U-shaped limiting structure, the stop block and the U-shaped limiting structure can jointly limit the end of the clamping assembly from four directions of the front side, the rear side, the right side and the left side, and the clamping assembly can effectively avoid shaking when fixed in the frame through the U-shaped limiting structure.

[0019] The second aspect of the present application provides a warm isostatic pressing device comprising the clamp described above, which is used to fix the workpiece to be pressed to complete the warm isostatic pressing process.

[0020] The third aspect of the present application provides a centrifugal device comprising: a housing having a receiving cavity; a clamp arranged in the receiving cavity, the clamp being used to fix a workpiece to be centrifuged and dried; and an upper positioning mechanism and a lower positioning mechanism arranged opposite to each other in the vertical direction, the upper positioning mechanism and the lower positioning mechanism being configured to be able to clamp the clamp and drive the clamp to rotate.

[0021] By setting the shell as a hollow structure with a containing cavity, the clamp, the upper positioning mechanism and the lower positioning mechanism are located in the containing cavity of the shell, wherein the clamp is used for fixing the processing piece to be centrifugally dried; in this way, the upper positioning mechanism and the lower positioning mechanism can clamp the clamp and drive the clamp to rotate at a high speed, so that the residual working medium attached to the surface of the processing piece is timely thrown out by the centrifugal force, thereby avoiding affecting the production of the subsequent process.

[0022] In one of the embodiments, the upper positioning mechanism can move close to or away from the lower positioning mechanism along the vertical direction. In this way, the upper positioning mechanism can move close to the lower positioning mechanism along the vertical direction, so that the upper positioning mechanism and the lower positioning mechanism are respectively pressed on both ends of the clamp along the vertical direction to keep the clamp fixed, thereby the clamp can be driven to rotate, so as to ensure that the centrifugal device completes the process of centrifugally drying the processing piece; when the centrifugal drying is completed, the upper positioning mechanism moves away from the lower positioning mechanism along the vertical direction, so that the upper positioning mechanism is separated from the clamp, which facilitates the operator to put in or take out the clamp.

[0023] In one of the embodiments, the upper positioning mechanism comprises a first rotating disc, an extender and a fixed seat, and the two ends of the extender are respectively connected with the fixed seat and the first rotating disc; the first rotating disc is used for pressing the clamp, and the fixed seat is fixedly connected with the shell. In this way, the extender can drive the first rotating disc to press down or lift up along the vertical direction; when the extender drives the first rotating disc to press down along the vertical direction, the first rotating disc is pressed on the top end of the clamp, so that the first rotating disc of the upper positioning mechanism keeps fixed with the clamp; this ensures that the centrifugal device completes the process of centrifugally drying the processing piece; when the centrifugal drying is completed, the extender drives the first rotating disc to lift up along the vertical direction, so that the first rotating disc is separated from the clamp, which facilitates the operator to put in or take out the clamp.

[0024] In one of the embodiments, the extender is a pneumatic cylinder, the cylinder body of the extender is detachably connected with the fixed seat, and the piston rod of the extender is rotationally connected with the first rotating disc.

[0025] In one of the embodiments, the lower positioning mechanism comprises a second rotating disc, a driver and a support column; the second rotating disc is used for supporting the bottom end of the clamp; the bottom end of the support column is rotationally connected with the bottom side plate of the shell; the top end of the support column supports the second rotating disc below; and the driver is used for driving the support column to rotate. In this way, the support column supports between the second rotating disc and the bottom side plate of the shell; the driver drives the support column to rotate, thereby the second rotating disc can be driven to rotate, so that the clamp located on the second rotating disc rotates, thereby the clamp as a whole can rotate at a high speed, the residual working medium attached to the surface of the processing piece is timely thrown out by the centrifugal force, thereby avoiding affecting the production of the subsequent process.

[0026] In one of the embodiments, the driver is an electric motor, the driver is fixed to the housing, a transmission gear is fixed to the outer periphery of the support column, and an output gear is arranged at the end of the rotating shaft of the driver and engaged with the transmission gear.

[0027] The fourth aspect of the present application provides a battery production line comprising the clamp.

[0028] The fifth aspect of the present application provides a battery production line comprising the centrifugal device.

[0029] The sixth aspect of the present application provides a battery production line comprising a warm isostatic pressing device and a centrifugal device arranged in sequence, the warm isostatic pressing device is used for performing a warm isostatic pressing process on a workpiece, the centrifugal device is used for performing a centrifugal spin-drying process on the workpiece after the warm isostatic pressing process, and the warm isostatic pressing device and the centrifugal device share the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0031] FIG. 1 is a structural schematic diagram of a centrifugal device provided by some embodiments of the present application.

[0032] FIG. 2 is a three-dimensional view of a housing provided by some embodiments of the present application.

[0033] FIG. 3 is a structural schematic diagram of a clamp provided by some embodiments of the present application.

[0034] FIG. 4 is a structural schematic diagram of a material frame provided by some embodiments of the present application.

[0035] FIG. 5 is a structural schematic diagram of a material clamping assembly provided by some embodiments of the present application.

[0036] FIG. 6 is an exploded view of the material clamping assembly and the workpiece assembled by some embodiments of the present application.

[0037] FIG. 7 is a front view of a material clamping plate and a blocking strip provided by some embodiments of the present application.

[0038] REFERENCE NUMERALS

[0039] Housing-100, containing cavity-110, clamp-200, material frame-10, support-12, cover plate-11, installation space-13, fixing piece-14, fixed strip-15, stop block-16, clamping assembly-20, clamping plate-21, sliding rod-22, blocking strip-23, elastic piece-25, nut-26, sliding hole-27, containing space-29, processing piece-90, upper positioning mechanism-300, first rotating disc-310, telescopic device-320, piston rod-321, cylinder-322, fixed seat-330, first bearing-340, lower positioning mechanism-400, second rotating disc-410, driver-420, support column-430, second bearing-440. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the terms "comprising" and "having," and any variations thereof, as used in the specification and claims and the aforementioned description of the drawings, are intended to cover not exclusive inclusions.

[0042] In the description of the embodiments of the present application, if these technical terms "first", "second", etc. appear, these terms are only for the purpose of description, to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0043] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0045] In the description of the embodiments of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two (including two), for example, two, three, etc., unless otherwise explicitly specified. Similarly, if the term "multiple groups" appears, "multiple groups" refers to two groups or more (including two groups), and if the term "multiple pieces" appears, "multiple pieces" refers to two pieces or more (including two pieces).

[0046] In the description of the embodiments of the present application, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, if technical terms such as "mounting", "connection", "connection", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] In this application, unless otherwise explicitly specified and limited, if the first feature appears "on" or "under" the second feature or similar description, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0049] It is to be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions, if used, are used for explanation only and are not intended to be limiting.

[0050] At present, from the development of market situation, the application of power battery is more and more extensive. The power battery is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, electric transportation tools and aerospace fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0051] As one of the future development trends of power battery, the all-solid-state battery has the advantages of high density, high energy density and good safety. With the development of all-solid-state battery technology, higher requirements are put forward for the thermal pressure uniformity of all-solid-state battery. In the related technology, the all-solid-state battery adopts a warm isostatic pressing process to heat press the stacked bare battery cell. After heat pressing, the bare battery cell obtains a bare battery cell with consistent height and width. However, in the process of heat pressing by using this process, the bare battery cell is often in a free state. The bare battery cell is placed in a material frame, and then the material frame is placed in a warm isostatic pressing device. The bare battery cell is prone to uneven pressure and heat in the cavity of the device, resulting in inconsistent plastic deformation of the bare battery cell, thereby affecting the safety performance of the bare battery cell and the shell entering process in the subsequent process. The performance of the all-solid-state battery is affected.

[0052] In order to alleviate the problem of uneven pressure and heat, the material frame and the material clamping assembly can be designed. The material clamping assembly is fixed in the material frame. The material clamping assembly can be appropriately floated to clamp the bare battery cell (i.e. the workpiece) to be extruded. The clamping plate of the material clamping assembly is used to fix and clamp the bare battery cell and make the bare battery cell keep flat, so that the surface of the bare battery cell is uniformly stressed.

[0053] The embodiment of the present application provides a clamp 200, a warm isostatic pressing device, a centrifugal device and a battery production line, which are used for the production of all-solid-state batteries. The all-solid-state battery can provide electric energy or store electric energy for an electric device. The electric device can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric automobile, a ship, a spacecraft and the like. The electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric aircraft toys, and the like. The spacecraft can include an airplane, a rocket, a space shuttle and a spacecraft, and the like.

[0054] The all-solid-state battery generally includes a bare cell. The bare cell is formed by stacking a positive electrode, a solid-state electrolyte, and a negative electrode. The negative electrode can include at least one of pure lithium, a lithium alloy, and a lithium metal composite oxide. The solid-state electrolyte can include at least one of a sulfide-based solid-state electrolyte, an oxide-based solid-state electrolyte, and an organic solid-state electrolyte. The positive electrode generally includes a positive electrode active material, a conductive agent, and a binder mixed and coated on one side surface of a positive electrode current collector. The positive electrode current collector can use at least one of stainless steel, aluminum, nickel, titanium, and aluminum or stainless steel surface-treated with carbon, nickel, titanium, or silver. The positive electrode active material can be a compound composed of one or more of lithium, nickel, cobalt, manganese, aluminum, zirconium, titanium, vanadium, magnesium, iron, molybdenum, etc.; for example, lithium titanate, lithium niobate, lithium borate, lithium zirconate, and lithium cobaltate, etc. The conductive agent can generally include graphite (for example, natural graphite or artificial graphite), carbon black (for example, acetylene black, ketjen black, slot black, furnace black, lamp black, or thermal black), conductive fibers (for example, carbon fibers or metal fibers), metal powder (for example, carbon fluoride powder, aluminum powder, or nickel powder), conductive whiskers (for example, zinc oxide or potassium titanate), conductive metal oxides (for example, titanium oxide), or conductive materials (for example, polyphenylene derivatives) can be used as the conductive agent. The binder can be any one or a mixture of two or more selected from the group consisting of polyamide-imide (PAI), polyimide (PI), polyamide (PA), polyamide acid, polyethylene oxide (PEO), polystyrene (PS), poly(ethylene-co-propylene-co-5-methylene-2-norbornene) (PEP-MNB), polyvinylidene fluoride (PVDF), poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), polystyrene nitrile-butadiene rubber (PS-NBR), poly(methacrylate) nitrile-butadiene rubber (PMMA-NBR), and a mixture thereof.

[0055] In the operation process of the embodiments of the present application, before the bare cell is subjected to the warm isostatic pressing process, the bare cell is often also required to be sealed with a film on the outer surface to form a processing piece 90, so that the processing piece 90 can withstand greater pressure and heat pressure, and the extrusion is more uniform.

[0056] Referring to FIGS. 3 to 7, FIG. 3 is a structural schematic diagram of a clamp 200 provided by some embodiments of the present application. FIG. 4 is a structural schematic diagram of a material frame provided by some embodiments of the present application. FIG. 5 is a structural schematic diagram of a material clamping assembly provided by some embodiments of the present application. FIG. 6 is an exploded view of the assembly of the material clamping assembly and the processing piece provided by some embodiments of the present application. FIG. 7 is a front view of the material clamping plate and the blocking strip provided by some embodiments of the present application.

[0057] The first aspect of the present application provides a clamp 200 for pressure holding of a processing piece 90. The clamp 200 includes: a material frame 10 and a material clamping assembly 20.

[0058] The material clamping assembly 20 is fixed in the material frame 10. The material clamping assembly 20 comprises at least two material clamping plates 21. All the material clamping plates 21 are arranged in a first direction and spaced from each other. Each adjacent two material clamping plates 21 form a containing space 29 for placing a processing piece. Each material clamping plate 21 can float in the first direction X to adjust the width of the containing space 29.

[0059] In this way, the working medium of the warm isostatic pressing process flows into the material frame 10 from all directions and contacts the material clamping assembly 20. The containing space 29 for placing the processing piece is formed between each adjacent two material clamping plates 21. The material clamping plate 21 can be fixed and clamped in the first direction X and the processing piece 90 is kept flat. In the isostatic pressing process, the surface of the processing piece 90 is uniformly stressed. The processing piece 90 can be corrected by the material clamping plate 21, so that the processing piece 90 is flat and uniformly stressed. In addition, as the warm isostatic pressing process proceeds, the size of the processing piece 90 often shrinks to a certain extent. The material clamping plate 21 can float in the first direction X to ensure that the material clamping plate 21 can always be fixed and clamped on the processing piece 90 to avoid free shaking. In this way, the processing piece 90 can withstand greater pressure and ensure uniform plastic deformation in the warm isostatic pressing process.

[0060] In some possible embodiments, the material clamping plate 21 can be made of stainless steel or polytetrafluoroethylene plate. The material clamping plate 21 can also be made of other materials with certain strength, which is not limited in the application.

[0061] In some possible embodiments, the material clamping plate 21 can be a square plate, a circular plate or an elliptical plate. The material clamping plate 21 can also have other geometric shapes as long as the shape of the material clamping plate 21 can cover the processing piece 90, which is not limited in the application.

[0062] In some possible embodiments, referring to FIGS. 3 to 7, the material clamping assembly 20 comprises a plurality of sliding rods 22. Each material clamping plate 21 is formed with a plurality of sliding holes 27 corresponding to the sliding rods 22. Each sliding rod 22 sequentially penetrates all the material clamping plates 21 in the first direction X.

[0063] In this way, all the material clamping plates 21 are connected by the sliding rods 22. Each material clamping plate 21 can slide on the sliding rod 22 according to the pressure feedback through the sliding hole 27. The deflection of the material clamping plate 21 can be effectively avoided by the guidance of the sliding rod 22.

[0064] In some embodiments, four sliding holes 27 are formed at the four corners of each clamping plate 21 respectively, and the clamping assembly 20 comprises four sliding rods 22, which are respectively arranged through the sliding holes 27 at the four corners of all the clamping plates 21.

[0065] In some possible embodiments, referring to FIGS. 3-7, the sliding rod 22 can be a screw rod, and the end portion is screwed with the nut 26; each clamping plate 21 is slid on the sliding rod 22 along the first direction X through the sliding hole 27, and is limited at both ends to avoid the disengagement of the clamping plate 21 from the sliding rod 22.

[0066] In some possible embodiments, referring to FIGS. 3-7, the clamping assembly 20 comprises a plurality of elastic members 25, each of which is sleeved on the corresponding sliding rod 22; one end of the elastic member 25 abuts against the end of the sliding rod 22, and the other end of the elastic member 25 abuts against the outermost clamping plate 21 in the clamping assembly 20.

[0067] At least one elastic member 25 is sleeved on each sliding rod 22. In this way, the two ends of the elastic member 25 act between the sliding rod 22 and the clamping plate 21 respectively, so that the clamping plate 21 can be subjected to a certain pre-tightening force, thereby ensuring that the clamping plate 21 can be fixedly clamped along the first direction X and the processing piece 90 is kept flat, and further ensuring that the surface of the processing piece 90 is uniformly stressed during the isostatic pressing process.

[0068] In some embodiments, the elastic member 25 can be an elastic gasket or a spring.

[0069] In some possible embodiments, the clamping assembly 20 comprises a plurality of blocking strips 23; two blocking strips 23 are arranged on the surface of each clamping plate 21, and the two blocking strips 23 are parallel to each other and spaced apart.

[0070] In this way, by arranging the two blocking strips 23 parallel to each other and spaced apart on the surface of each clamping plate 21, when the processing piece 90 is pressed to reduce in size, the blocking strips 23 protrude from the surface of the clamping plate 21, so as to limit the processing piece 90 and prevent the processing piece 90 from sliding out of the through accommodating space 29, thereby adapting to the high-pressure environment of the warm isostatic pressing process and ensuring the stable realization of the centrifugal spin-drying function.

[0071] The blocking strip 23 can be made of stainless steel, polytetrafluoroethylene or the like; and has an overall strip shape. The blocking strip 23 and the clamping plate 21 can be integrally fixed by welding, bonding or bolt connection.

[0072] In some possible embodiments, referring to Figs. 3-7, the material frame 10 comprises the support 12 and at least two cover plates 11; all the cover plates 11 are arranged in vertical direction with a relative interval, the support 12 is supported between two adjacent cover plates 11, and a region between the two adjacent cover plates 11 forms a placement space 13 in which the material clamping assembly 20 is erected.

[0073] In this way, one end of all the material clamping plates 21 is in abutting connection with the cover plate 11 above, and the other end of all the material clamping plates 21 is in abutting connection with the other cover plate 11 below, so that the material clamping assembly 20 is erected in the placement space 13 in the material frame 10, and finally the material clamping assembly 20, the processing piece 90 and the material frame 10 are relatively fixed; thus, not only can the high-pressure environment of the warm isostatic pressing process be adapted, but also in the process of centrifugal spin-drying, the material frame 10 drives the material clamping assembly 20, and then the processing piece 90 rotates at high speed around the rotation axis of the material frame 10, so that the residual working medium can be better spun out.

[0074] The support 12 is supported between two adjacent cover plates 11, and is used to transmit load, bear weight and maintain the overall shape of the material frame 10. The support 12 can be in a plate shape, a column shape or a grid shape structure, and is usually made of stainless steel.

[0075] The cover plate 11 can be in a circular or square shape, and is usually made of stainless steel with a certain thickness, so as to bear the weight of the material clamping assembly 20 and avoid deformation.

[0076] The cover plate 11 and the support 12 can be fixed by welding connection, which has good connection strength and is not easy to deform.

[0077] In some possible embodiments, only one support 12 can be arranged between two adjacent cover plates 11, and in other embodiments, a plurality of supports 12 can be arranged between two adjacent cover plates 11, so as to improve the structural strength between the two cover plates 11 and the support 12.

[0078] In some possible embodiments, the material frame 10 comprises two cover plates 11 and is fixed with one material clamping assembly 20; in other embodiments, the material frame 10 can comprise three or more cover plates 11, so that two or more placement spaces 13 can be formed in one material frame 10, and one material frame 10 can cooperate with two or more material clamping assemblies 20; thus, a plurality of different processing pieces 90 can be simultaneously subjected to corresponding warm isostatic pressing process or centrifugal spin-drying process.

[0079] In some possible embodiments, referring to FIGS. 3-7, the cover plate 11 is provided with a plurality of hollow holes. In this way, when the clamping assembly 20 is fixed in the frame 10, the high-temperature and high-pressure working medium flows into the frame 10 from all around and contacts the clamping assembly 20, so that the warm isostatic pressing process is performed. The workpiece 90 is kept flat by the fixed clamping of the clamping plates 21. After the warm isostatic pressing process is completed, the working medium in the frame 10 flows out from all around and the hollow holes of the cover plate 11 by gravity, so as to avoid residue and facilitate the operator to take out the clamping assembly 20 and the workpiece 90. Next, the operator can place the clamp 200 into the centrifugal device. The upper positioning mechanism 300 and the lower positioning mechanism 400 are respectively pressed and connected at two ends of the clamp 200 along the vertical direction Z, so as to keep fixed and drive the rotation of the clamp 200. The working medium remaining on the workpiece 90 flows out from all around and the hollow holes of the cover plate 11 by centrifugal force and gravity, so as to avoid residue.

[0080] The hollow holes (not labeled) of the cover plate 11 are generally circular punching holes. According to actual working conditions, other shapes such as square and oval can be adjusted. The size and density of the hollow holes can be appropriately adjusted under the premise of ensuring the strength of the cover plate 11, so as to improve the overall weight of the frame 10.

[0081] In some possible embodiments, under the premise of ensuring the overall strength of the frame 10, the support 12 can also be provided with a plurality of hollow holes; so as to facilitate the inflow or outflow of the working medium during the warm isostatic pressing process, and effectively improve the overall weight of the frame 10.

[0082] In various embodiments of the present application, the working medium used for warm isostatic pressing can be oil or water.

[0083] In some possible embodiments, referring to FIGS. 3-7, the frame 10 includes a plurality of fixing members 14. The fixing members 14 are arranged on the plate surface of the cover plate 11 facing the accommodation space 13. The two ends of the clamping assembly 20 are respectively fixed with the fixing members 14 on the two cover plates 11.

[0084] In this way, one end of all the clamping plates 21 abuts against the cover plate 11 located above and is limited by the fixing members 14 on the cover plate 11 located above, so as to prevent deflection. The other end of all the clamping plates 21 abuts against the other cover plate 11 located below and is limited by the fixing members 14 on the cover plate 11 located below, so as to prevent deflection. Finally, the clamping assembly 20 is vertically arranged in the accommodation space 13 in the frame 10, so as to ensure that the clamping assembly 20, the workpiece 90 and the frame 10 are relatively fixed. In this way, it can be ensured that the clamp 200 does not appear to be deflected and shaken during the process of the warm isostatic pressing process or the process of the centrifugal spin-drying.

[0085] In some possible embodiments, the fixing member 14 can be a bolt, a clamping block or the like structure, which is used to clamp the end of the material clamping assembly 20 to prevent the end from shaking.

[0086] In some possible embodiments, referring to FIGS. 3 to 7, the fixing member 14 includes two L-shaped fixing strips 15, which are arranged opposite to each other to form a U-shaped limiting structure.

[0087] In this way, the two fixing strips 15 are arranged opposite to each other on the plate surface of the cover plate 11 facing the accommodation space 13, and the two fixing strips 15 form a U-shaped limiting structure, so that the fixing member 14 can limit the end of the material clamping assembly 20 from three directions of the front side, the right side and the left side, and the material clamping assembly 20 can effectively avoid shaking when being fixed in the material frame 10.

[0088] In some embodiments, the fixing strips 15 can be made of stainless steel or polytetrafluoroethylene. The fixing strips 15 and the cover plate 11 can be connected by bolts or welded, and have good structural strength, so as to limit the end of the material clamping assembly 20.

[0089] In some possible embodiments, referring to FIGS. 3 to 7, the fixing member 14 includes a blocking block 16, which is arranged on the plate surface of the cover plate 11 facing the accommodation space 13, and the blocking block 16 is located at the opening side of the U-shaped limiting structure.

[0090] In this way, the blocking block 16 is arranged on the plate surface of the cover plate 11 facing the accommodation space 13, and the blocking block 16 is located at the opening side of the U-shaped limiting structure, so that the blocking block 16 and the U-shaped limiting structure can jointly limit the end of the material clamping assembly 20 from four directions of the front side, the back side, the right side and the left side, and the material clamping assembly 20 can effectively avoid shaking when being fixed in the material frame 10.

[0091] In some embodiments, the blocking block 16 can be made of stainless steel or polytetrafluoroethylene. The blocking block 16 and the cover plate 11 can be connected by bolts or welded, and have good structural strength, so as to limit the end of the material clamping assembly 20.

[0092] A second aspect of the embodiment of the present application provides a warm isostatic pressing device, which includes the clamp 200 described above. The clamp 200 is used to fix a processing piece 90 to be pressed to complete a warm isostatic pressing process.

[0093] In the related art, a full solid-state battery adopts a warm isostatic pressing process to heat press a bare battery cell after stacking, and the bare battery cell after heat pressing obtains a bare battery cell with consistent height and width. However, in the process of heat pressing by using this process, a large amount of working medium can be filled in the warm isostatic pressing equipment, and the working medium can be oil or water. After the bare battery cell completes the warm isostatic pressing process, a large amount of working medium can be left on the surface of the bare battery cell, and a large number of bare battery cells often have a large amount of residual working medium.

[0094] To alleviate the problem of residual working medium, a centrifugal device can be designed, which has a clamp, an upper positioning mechanism and a lower positioning mechanism. The clamp is clamped by the upper positioning mechanism and the lower positioning mechanism, and the clamp is driven to rotate at high speed. By using centrifugal force, the residual working medium attached to the surface of the processing piece can be thrown out in time by the centrifugal force, so as to avoid affecting the production of the subsequent process.

[0095] It should be noted that the outer surface of the bare battery cell is sealed to form a processing piece 90, which can withstand greater pressure in the warm isostatic pressing process and make the extrusion more uniform. Therefore, in the process of removing the working medium by centrifugation in the present application, the working medium is often left on the surface of the processing piece 90.

[0096] Referring to FIGS. 1-7, FIG. 1 is a structural schematic diagram of a centrifugal device provided by some embodiments of the present application. FIG. 2 is a three-dimensional view of a housing provided by some embodiments of the present application.

[0097] The third aspect of the present application provides a centrifugal device for centrifugal processing of a processing piece 90, thereby efficiently removing residual working medium attached to the processing piece 90.

[0098] The centrifugal device includes a housing 100, a clamp 200, an upper positioning mechanism 300 and a lower positioning mechanism 400. The housing 100 has a receiving cavity 110. The clamp 200 is arranged in the receiving cavity 110, and the clamp 200 is used to fix the processing piece 90 to be centrifugally dried. The upper positioning mechanism 300 and the lower positioning mechanism 400 are arranged in a vertical direction Z. The upper positioning mechanism 300 and the lower positioning mechanism 400 are configured to clamp the clamp 200 and drive the clamp 200 to rotate.

[0099] The housing 100 is a hollow structure having a receiving cavity 110. The clamp 200, the upper positioning mechanism 300 and the lower positioning mechanism 400 are located in the receiving cavity 110 of the housing 100. The clamp 200 is used to fix the processing piece 90 to be centrifugally dried. In this way, the upper positioning mechanism 300 and the lower positioning mechanism 400 can clamp the clamp 200 and drive the clamp 200 to rotate at high speed. By using centrifugal force, the residual working medium attached to the surface of the processing piece 90 can be thrown out in time by the centrifugal force, so as to avoid affecting the production of the subsequent process.

[0100] In some possible embodiments, referring to FIG. 2, the shell 100 can be a hollow structure with one end open, and a corresponding door or window (not labeled) can be arranged on the opening. The shell 100 can be a thin-walled member and hollow inside. The shell 100 can be designed into various shapes according to actual needs, such as a simple solid structure of a cuboid or a cylinder, or a complex solid structure composed of a cuboid or a cylinder or a sphere. The material of the shell 100 can be an alloy material such as an aluminum alloy or an iron alloy, which has good strength and processability.

[0101] In various embodiments of the present application, the working medium can be oil or water used in the warm isostatic pressing process.

[0102] In some possible embodiments, the bottom side plate of the shell 100 can be provided with a corresponding discharge hole, and the working medium centrifugally thrown from the processing piece 90 can be discharged from the accommodation cavity 110 in time.

[0103] In some possible embodiments, referring to FIGS. 1 and 2, the upper positioning mechanism 300 can be close to or away from the lower positioning mechanism 400 along the vertical direction Z.

[0104] The upper positioning mechanism 300 can be close to or away from the lower positioning mechanism 400 along the vertical direction Z. In this way, the upper positioning mechanism 300 can be close to the lower positioning mechanism 400 along the vertical direction Z, so that the upper positioning mechanism 300 and the lower positioning mechanism 400 are respectively pressed and connected at the two ends of the clamp 200 along the vertical direction Z, and the clamp 200 can be driven to rotate, thereby ensuring that the centrifugal device completes the process of centrifugal drying of the processing piece 90. When the centrifugal drying is completed, the upper positioning mechanism 300 is away from the lower positioning mechanism 400 along the vertical direction Z, so that the upper positioning mechanism 300 is separated from the clamp 200, and the operator can conveniently put in or take out the clamp 200.

[0105] In the embodiments of the present application, the two ends of the clamp 200 along the vertical direction Z can be the cover plates 11 (mentioned below), the first turntable 310 (mentioned below) of the upper positioning mechanism 300 can be pressed and connected to the cover plate 11 at the top end of the clamp 200, and the second turntable 410 (mentioned below) of the lower positioning mechanism 400 can be supported below the cover plate 11 at the bottom end of the clamp 200.

[0106] In some possible embodiments, referring to FIGS. 1-2, the upper positioning mechanism 300 and the lower positioning mechanism 400 are respectively rotationally connected to opposite sides of the shell 100. Specifically, the lower positioning mechanism 400 is rotationally connected to the bottom side plate of the shell 100, and the upper positioning mechanism 300 is rotationally connected to the top side plate of the shell 100, facilitating self-rotation of the clamp 200 and thus throwing off the working medium attached to the processing piece 90.

[0107] In some possible embodiments, referring to FIGS. 1-7, the upper positioning mechanism 300 includes a first rotating disc 310, an extender 320, and a fixed seat 330, and two ends of the extender 320 are respectively connected to the fixed seat 330 and the first rotating disc 310. The first rotating disc 310 is configured to press the clamp 200, and the fixed seat 330 is fixedly connected to the shell 100.

[0108] The extender 320 can drive the first rotating disc 310 to press down or lift up along the vertical direction Z. When the extender 320 drives the first rotating disc 310 to press down along the vertical direction Z, the first rotating disc 310 is lapped on the top end of the clamp 200, so that the first rotating disc 310 of the upper positioning mechanism 300 is fixed with the clamp 200, ensuring that the centrifugal device completes the process of centrifugal drying of the processing piece 90. When the centrifugal drying is completed, the extender 320 drives the first rotating disc 310 to lift up along the vertical direction Z, so that the first rotating disc 310 is separated from the clamp 200, facilitating the operator to put in or take out the clamp 200.

[0109] In some possible embodiments, the extender 320 can be a pneumatic cylinder or a hydraulic cylinder, and can also be a direct-acting motor, and the embodiments of the present application do not limit this.

[0110] Taking the extender 320 as a pneumatic cylinder as an example, the cylinder body 322 of the extender 320 is detachably connected to the fixed seat 330. Specifically, the cylinder body 322 and the fixed seat 330 can be bolted, facilitating disassembly and maintenance. The piston rod 321 of the extender 320 is rotationally connected to the first rotating disc 310. Generally, a first bearing 340 can be arranged between the piston rod 321 and the first rotating disc 310, ensuring that the first rotating disc 310 rotates together with the clamp 200 in the process of centrifugal drying, and the extender 320 is not affected.

[0111] In some embodiments, the first rotating disc 310 can be made of stainless steel, aluminum alloy, or iron alloy, and has a disc shape. The fixed seat 330 can be made of stainless steel, aluminum alloy, or iron alloy, and has a disc shape or a block shape. The fixed seat 330 is fixedly connected to the shell 100 by bolting or welding, and has good connection strength.

[0112] In some possible embodiments, referring to FIGS. 1-7, the lower positioning mechanism 400 includes a second turntable 410, a driver 420, and a support column 430; the second turntable 410 is used to support the bottom end of the clamp 200; the bottom end of the support column 430 is rotationally connected to the bottom side plate of the shell 100; the top end of the support column 430 is supported below the second turntable 410; and the driver 420 is used to drive the support column 430 to rotate.

[0113] The support column 430 is supported between the second turntable 410 and the bottom side plate of the shell 100; the driver 420 drives the support column 430 to rotate, thereby enabling the second turntable 410 to rotate; as a result, the clamp 200 located on the second turntable 410 rotates, so that the clamp 200 as a whole rotates at high speed, and the residual working medium attached to the surface of the processing piece 90 is timely thrown out by centrifugal force, thereby avoiding affecting the production of subsequent processes.

[0114] It can be understood that the upper positioning mechanism 300 and the lower positioning mechanism 400 should cooperate to complete the function of the centrifugal device. Specifically, the extender 320 drives the first turntable 310 to press downward along the vertical direction Z, so that the first turntable 310 and the second turntable 410 are respectively pressed and connected at the two ends of the clamp 200 along the vertical direction Z, thereby enabling the first turntable 310, the clamp 200, and the second turntable 410 to remain relatively fixed; the driver 420 is started, the driver 420 drives the support column 430 to rotate, thereby enabling the second turntable 410 to rotate; as a result, the clamp 200 located on the second turntable 410 rotates, and the first turntable 310 also rotates, and the clamp 200 as a whole rotates at high speed, and the residual working medium attached to the surface of the processing piece 90 is timely thrown out by centrifugal force, thereby avoiding affecting the production of subsequent processes.

[0115] In some possible embodiments, referring to FIG. 1, the driver 420 is a motor, the driver 420 is fixed to the shell 100, and the bottom end of the support column 430 is rotationally connected to the bottom side plate of the shell 100; a second bearing 440 can be usually arranged between the support column 430 and the shell 100, so that the rotation is smooth and the friction is small. A transmission gear is fixed to the outer circumferential side of the support column 430, and the end portion of the rotating shaft of the driver 420 is provided with an output gear meshing with the transmission gear. In this way, the rotating shaft of the driver 420 rotates to drive the output gear to rotate, the transmission gear rotates accordingly, and finally the support column 430 rotates around its own axis, and the second turntable 410 fixedly connected to the support column 430 rotates accordingly, so that the clamp 200 located on the second turntable 410 rotates, the first turntable 310 also rotates, and the clamp 200 as a whole rotates at high speed, and the residual working medium attached to the surface of the processing piece 90 is timely thrown out by centrifugal force, thereby avoiding affecting the production of subsequent processes.

[0116] In some possible embodiments, referring to FIG. 1, the upper positioning mechanism 300, the clamp 200 and the lower positioning mechanism 400 should be coaxially arranged; so that the three are generally on the same vertical rotation axis, thereby avoiding misalignment between each other, and further avoiding the situation that the clamp 200 is thrown during the self-rotation process. Specifically, the central axes of the first rotating disc 310, the second rotating disc 410 and the support column 430 are collinear; and the central axes of the three pass through the clamp 200.

[0117] In some embodiments, the first rotating disc 310 can be made of stainless steel, aluminum alloy or iron alloy; and the overall shape is disc-shaped. The support column 430 can be made of stainless steel, aluminum alloy or iron alloy; and the overall shape is cylindrical. The transmission gear can be integrally arranged with the support column 430, or can be separately processed and fixed in the circumferential direction by welding, bolt or the like. The first rotating disc 310 and the support column 430 can be fixed by welding or bolt connection, and have good connection strength.

[0118] In each of the above embodiments of the centrifugal device, the clamp 200 can be placed in the accommodating cavity 110 of the housing 100 of the centrifugal device as a whole, the upper positioning mechanism 300 and the lower positioning mechanism 400 can clamp the two ends of the material frame 10 in the vertical direction Z, and drive the material frame 10 to self-rotate at high speed. The material clamping assembly 20 fixed in the material frame 10 is immediately rotated at high speed, and the residual working medium attached to the surface of the processing piece 90 is timely thrown out by the centrifugal force, so as to avoid affecting the production of the subsequent process.

[0119] In each of the above embodiments of the centrifugal device, the clamp 200 can be fixed to the upper cover plate 11 by magnetic attraction equipment and transferred by hoisting, thereby saving manpower, and making the clamp 200 applicable to the warm isostatic pressing process and the centrifugal spin-drying process, thereby avoiding the operator repeatedly disassembling or loading the processing piece 90 from the clamp 200 in the two steps.

[0120] Specifically, first, the clamp 200 is placed into the warm isostatic pressing device by using the magnetic attraction device to perform the warm isostatic pressing process; after the warm isostatic pressing process is completed, the clamp 200 with the processed piece 90 is directly hoisted to the upper cover plate 11 by using the magnetic attraction device, and the clamp 200 is placed between the upper positioning mechanism 300 and the lower positioning mechanism 400 of the centrifugal device, the upper positioning mechanism 300 and the lower positioning mechanism 400 are respectively pressed on both ends of the clamp 200 in the vertical direction Z to keep fixed, and then the clamp 200 can be driven to rotate, so as to ensure that the centrifugal device completes the process of centrifugal drying the processed piece 90. When the centrifugal drying is completed, the upper positioning mechanism 300 moves away from the lower positioning mechanism 400 in the vertical direction Z, and then the upper positioning mechanism 300 is separated from the clamp 200, so that the operator can conveniently put in or take out the clamp 200.

[0121] The fourth aspect of the embodiment of the present application provides a battery production line, comprising the clamp 200.

[0122] The fifth aspect of the embodiment of the present application provides a battery production line, comprising the centrifugal device.

[0123] The sixth aspect of the embodiment of the present application provides a battery production line, comprising the warm isostatic pressing device and the centrifugal device arranged in sequence, wherein the warm isostatic pressing device is used for performing the warm isostatic pressing process on the processed piece 90, and the centrifugal device is used for performing the centrifugal drying process on the processed piece 90 after the warm isostatic pressing process. The warm isostatic pressing device and the centrifugal device share the same clamp 200.

[0124] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0125] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A clamp, comprising: a frame (10); and a clamping assembly (20) fixed in the frame (10); the clamping assembly (20) comprises at least two clamping plates (21), all the clamping plates (21) are arranged in a first direction, and a containing space (29) for placing a processing piece is formed between each two adjacent clamping plates (21); each clamping plate (21) can float in the first direction to adjust the width of the containing space (29) where it is located; the first direction is the normal direction of the plate surface of the clamping plate (21).

2. The clamp of claim 1, wherein, The clamping assembly (20) comprises a plurality of sliding rods (22); each clamping plate (21) is formed with a plurality of sliding holes (27) corresponding to the sliding rods (22), and each sliding rod (22) sequentially penetrates all the clamping plates (21) in the first direction.

3. The clamp of claim 2, wherein, The clamping assembly (20) comprises a plurality of elastic members (25), each elastic member (25) is sleeved on a corresponding sliding rod (22); one end of the elastic member (25) abuts against the end of the sliding rod (22), and the other end of the elastic member (25) abuts against the outermost clamping plate (21) in the clamping assembly (20).

4. The clamp of any one of claims 1 to 3, wherein, The clamping plate (21) is a square plate, a circular plate or an oval plate; and / or; The clamping plate (21) is made of one of stainless steel and polytetrafluoroethylene material.

5. The clamp of any one of claims 1 to 4, wherein, The clamping assembly (20) comprises a plurality of blocking strips (23); each clamping plate (21) is provided with two blocking strips (23) on the plate surface, and the two blocking strips (23) are parallel to each other and oppositely spaced.

6. The clamp of any one of claims 1 to 5, wherein, The frame (10) comprises a support member (12) and at least two cover plates (11); all the cover plates (11) are oppositely spaced in a vertical direction, the support member (12) is supported between two adjacent cover plates (11), and a region between the two adjacent cover plates (11) forms a placement space (13), and the clamping assembly (20) is erected in the placement space (13).

7. The clamp of claim 6, wherein, The cover plate (11) is hollow.

8. The clamp of claim 6 or 7, wherein, The frame (10) comprises a plurality of fixing members (14), and the fixing members (14) are arranged on the plate surface of the cover plate (11) facing the placement space (13); the two ends of the clamping assembly (20) are respectively fixed with the fixing members (14) on the two cover plates (11).

9. The clamp of claim 8, wherein, The fixing member (14) comprises two L-shaped fixing strips (15), and the two fixing strips (15) are oppositely arranged to form a U-shaped limiting structure.

10. The clamp of claim 8 or 9, wherein, The fixing member (14) comprises a stop block (16), and the stop block (16) is arranged on the plate surface of the cover plate (11) facing the placement space (13), and the stop block (16) is located at the opening side of the U-shaped limiting structure.

11. A warm isostatic pressing device, comprising the clamp according to any one of claims 1 to 10, and the clamp is used for fixing a processing piece (90) to be pressed to complete a warm isostatic pressing process.

12. A centrifugal device, comprising: A housing (100) has a containing cavity (110); A clamp according to any one of claims 1 to 10 is arranged in the containing cavity (110), and is used to fix a processing piece (90) to be centrifugally dried; and An upper positioning mechanism (300) and a lower positioning mechanism (400) are arranged in a vertical direction in a relative spacing manner, and are configured to be capable of clamping the clamp and driving the clamp to rotate.

13. The centrifuge device of claim 12, wherein, The upper positioning mechanism (300) is capable of moving towards or away from the lower positioning mechanism (400) along the vertical direction.

14. The centrifugation apparatus of claim 12 or 13, wherein, The upper positioning mechanism (300) comprises a first rotating disc (310), an extender (320), and a fixed base (330), two ends of the extender (320) are connected with the fixed base (330) and the first rotating disc (310) respectively, the first rotating disc (310) is used to press the clamp, and the fixed base (330) is fixedly connected with the housing (100).

15. The centrifuge device of claim 14, wherein, The extender (320) is a pneumatic cylinder, a cylinder body (322) of the extender (320) is detachably connected with the fixed base (330), and a piston rod (321) of the extender (320) is rotationally connected with the first rotating disc (310).

16. The centrifugation apparatus of any one of claims 12 to 15, wherein, The lower positioning mechanism (400) comprises a second rotating disc (410), a driver (420), and a support column (430), the second rotating disc (410) is used to support a bottom end of the clamp, a bottom end of the support column (430) is rotationally connected with a bottom side plate of the housing (100), a top end of the support column (430) is supported below the second rotating disc (410), and the driver (420) is used to drive the support column (430) to rotate.

17. The centrifuge device of claim 16, wherein, The driver (420) is an electric motor, the driver (420) is fixed with the housing (100), a transmission gear is fixed on an outer circumferential side of the support column (430), and an output gear is arranged on an end portion of a rotating shaft (421) of the driver (420) and is engaged with the transmission gear.

18. A battery production line comprising the clamp according to any one of claims 1 to 10.

19. A battery production line comprising the centrifugal device according to any one of claims 12 to 17.

20. A battery production line comprising a warm isostatic pressing device and a centrifugal device arranged in sequence, the warm isostatic pressing device is used to perform a warm isostatic pressing process on a processing piece, the centrifugal device is used to perform a centrifugal drying process on the processing piece after the warm isostatic pressing process, and the warm isostatic pressing device and the centrifugal device share the clamp according to any one of claims 1 to 10.

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