Pressure formation machine

Abstract

The utility model provides a pressure formation machine which is used for carrying out hot pressing and formation processes on a battery and comprises a driving cylinder, a pressure push plate assembly, a battery clamp assembly and a rack for bearing the parts, the driving cylinder comprises a transmission shaft of which the side part is provided with a groove; the transmission shaft is used for driving the pressure push plate assembly to extrude or pull the battery clamp assembly; the pressure push plate assembly comprises a push plate, a pressure sensor and a stress plate, the push plate is in sliding connection with the rack, the stress plate and the pressure sensor are fixedly connected with the push plate, a gap exists between the stress plate and the push plate, and the pressure sensor is arranged in the gap; a bayonet is formed in the stress plate and used for being in matched transmission with the groove; the width of the groove is larger than the thickness of the stress plate. According to the pressure formation machine provided by the utility model, the structure of the groove, the bayonet and the pressure sensor is designed, so that the problem of inaccurate pressure detection of a vertical pressure formation machine is solved; and the structure is compact and the maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pressure formation technical field, in particular to a pressure formation machine. BACKGROUND

[0002] The pressure formation machine is a kind of equipment widely used in the production process of soft package lithium battery (also called power battery), mainly used for the heat pressure formation treatment of battery, i.e. in the production process of battery, a certain pressure and heat are applied to battery to activate the active substance in battery, to ensure that battery has good charge-discharge performance and cycle life. At the same time, the shape of battery can also be regularized, and the shape of battery is fixed after completing heat pressure formation process, and after cooling, it can enter the next process. In the heat pressure formation process, the size and change of pressure need to be controlled continuously according to progress and conditions to ensure the quality and performance of battery.

[0003] In order to pursue stable driving mode, the pressure formation machine on the market usually adopts the mode of applying pressure by air cylinder driving, but this driving mode faces the problem of inaccurate pressure sensor measurement in actual application. For example, in the horizontal pressure formation machine, the transmission shaft and other parts are affected by gravity, and the force applied to the pressure sensor is not necessarily perpendicular to the detection area of the pressure sensor, resulting in error. In another vertical pressure formation machine, the pressure sensor is usually designed at the bottom, and the air cylinder applies pressure from the top, which causes the pressure to act on the pressure sensor after being transmitted several times, resulting in large error. SUMMARY

[0004] Therefore, the utility model aims at providing a pressure formation machine, which can solve the problem of inaccurate pressure detection of vertical pressure formation machine by designing the structure of groove, bayonet and pressure sensor, and has the advantages of compact structure and convenient maintenance.

[0005] The utility model provides a pressure formation machine for heat pressure and formation process of battery, which comprises a driving air cylinder, a pressure push plate assembly, a battery clamp assembly and a rack for bearing the above-mentioned parts.

[0006] The driving air cylinder comprises a transmission shaft with a groove opened in the side portion, and the transmission shaft is used to drive the pressure push plate assembly to extrude or pull the battery clamp assembly.

[0007] The pressure push plate assembly comprises a push plate, a pressure sensor and a stress plate, the push plate is slidably connected with the rack, the stress plate and the pressure sensor are fixedly connected with the push plate respectively, and there is a gap between the stress plate and the push plate, and the pressure sensor is arranged in the gap; a bayonet is opened on the stress plate for cooperating with the groove in transmission; the width of the groove is greater than the thickness of the stress plate.

[0008] Further, the rack is provided with at least two driving cylinders, which are regularly distributed on the rack to form an arrangement, which is one of horizontal arrangement, vertical arrangement, triangular arrangement or special-shaped arrangement.

[0009] Further, the transmission shaft is sleeved with a first protrusion and a second protrusion, which respectively form two side walls of the groove; the second protrusion is closer to the push plate; the second protrusion is arranged between the stress plate and the pressure sensor, and the transmission shaft is aligned with the pressure sensor.

[0010] Further, when the stress plate is attached to the second protrusion, the distance between the first protrusion and the stress plate is greater than the distance between the transmission shaft and the pressure sensor.

[0011] Further, when the stress plate slides towards the first protrusion, the transmission shaft first contacts the pressure sensor, and when the stress plate abuts against the first protrusion, the pressure sensor is subjected to the greatest pressure from the transmission shaft.

[0012] Further, the rack comprises a first support plate and a guide shaft which are detachably connected together, and the push plate is slidably connected to the guide shaft, so as to limit the movement of the pressure push plate assembly along the guide shaft.

[0013] Further, the driving cylinder is fixedly arranged on the first support plate, the pressure push plate assembly and the battery clamp assembly are arranged on the other side of the first support plate, and the transmission shaft is clamped with the stress plate through the first support plate.

[0014] Further, the rack further comprises a connecting plate, which is fixedly connected to one end of the guide shaft, and the first support plate is sleeved on the guide shaft and detachably connected with the connecting plate; when the first support plate and the connecting plate are separated, the first support plate drives the driving cylinder to slide on the guide shaft, so as to reduce the overall height of the pressure forming machine.

[0015] Further, the rack further comprises a second support plate, and the first support plate and the second support plate are arranged at two ends of the guide shaft respectively, and the battery clamp assembly is arranged between the push plate and the second support plate.

[0016] Further, the battery clamp assembly comprises at least two sub-plates which are arranged and combined to form an array, the sub-plates at two ends of the array are respectively fixedly connected with the push plate and the second support plate, and the at least two sub-plates are connected by elastic members which can be stretched and contracted; when the push plate is close to the second support plate, two adjacent sub-plates are buckled to fix the battery.

[0017] Therefore, the vertical pressure formation machine pressure detection inaccuracy problem is solved by designing the groove, the bayonet and the pressure sensor structure, and the compact structure and convenient maintenance advantages are also achieved.

[0018] Moreover, the rack further comprises a connecting plate fixedly connected with one end of the guide shaft, and the first support plate is detachably connected with the connecting plate; when the first support plate is detached from the connecting plate, the first support plate drives the driving cylinder to slide on the guide shaft, so as to reduce the overall height of the pressure formation machine. After the height is reduced, the pressure formation machine can easily pass through the elevator door or the room door, and the transportation and installation of the pressure formation machine are facilitated. After the position is determined, the first support plate is lifted again, and the first support plate is fixed with the connecting plate again. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0020] Figure 1 Structure diagram of the pressure formation machine in the embodiments of the present application Figure 1 .

[0021] Figure 2 Structure diagram of the pressure formation machine in the embodiments of the present application Figure 1 .

[0022] Figure 3 Structure diagram of the pressure formation machine in the embodiments of the present application Figure 1 .

[0023] Figure 4 Front view of the pressure formation machine in the embodiments of the present application

[0024] Figure 5 Structure diagram of the pressure formation machine in the embodiments of the present application Figure 4 .

[0025] Figure 6 Side view of the pressure formation machine in the embodiments of the present application

[0026] Figure 7 Structure diagram of the pressure formation machine in the embodiments of the present application Figure 2 .

[0027] Figure 8 Top view of the stress plate in the embodiments of the present application

[0028] Figure 9 It is the front view of the transmission shaft in the embodiment of the utility model.

[0029] In the above drawings, the reference signs of the embodiment of the utility model are as follows:

[0030] 100, drive cylinder; 110, transmission shaft; 111, groove; 112, first protrusion; 113, second protrusion;

[0031] 200, pressure push plate assembly; 210, push plate; 220, pressure sensor; 230, force receiving plate; 231, bayonet;

[0032] 300, battery clamp assembly; 310, sub plate; 320, elastic member;

[0033] 400, rack; 410, first support plate; 420, guide shaft; 430, connecting plate; 440, second support plate. DETAILED DESCRIPTION

[0034] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; 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. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product when it is usually placed, which is only for the convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0037] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and do not indicate or imply relative importance or a specific order.

[0038] The terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] The following will be described in detail through specific embodiments.

[0040] As Figures 1 to 9 shown, the utility model discloses a pressure formation machine for heat pressing and formation process to battery, including drive cylinder 100, pressure push plate 210 subassembly 200, battery clamp subassembly 300 and the rack 400 for bearing above -mentioned spare parts, this pressure formation machine is vertical and places, and drive cylinder 100 sets up at the top of battery clamp subassembly 300, and drive cylinder 100 exerts pressure to battery clamp subassembly 300 downward, to improve the pressure that battery clamp subassembly 300 inside battery receives, and cooperate with other spare parts of battery clamp subassembly 300 can also improve the temperature of battery, charge and discharge, test etc.

[0041] Drive cylinder 100 includes transmission shaft 110 with recess 110 being arranged on the side, and the transmission shaft 110 is used to drive pressure push plate 210 subassembly 200 to extrude or pull battery clamp subassembly 300;

[0042] Pressure push plate 210 subassembly 200 includes push plate 210, pressure sensor 220 and force plate 230, push plate 210 is slidably connected with rack 400, force plate 230 and pressure sensor 220 are fixedly connected with push plate 210 respectively, and there is a gap between force plate 230 and push plate 210, and pressure sensor 220 is arranged in the gap, and the recess 110 is arranged on the force plate 230 and is used to cooperate with the transmission of the recess 110, and the width of the recess 110 is greater than the thickness of the force plate 230;

[0043] When the transmission shaft 110 moves towards pressure push plate 210 subassembly 200, the force plate 230 slides in the recess 110 until abutting against one side wall of the recess 110, and the pressure of the transmission shaft 110 is sequentially transmitted to battery clamp subassembly 300 through force plate 230 and push plate 210, and at this time, the end surface of the transmission shaft 110 extrudes pressure sensor 220, when the transmission shaft 110 moves away from pressure push plate 210 subassembly 200, the force plate 230 slides in the recess 110 until abutting against the other side wall of the recess 110, and the tension of the transmission shaft 110 is sequentially transmitted to battery clamp subassembly 300 through force plate 230 and push plate 210, and at this time, the end surface of the transmission shaft 110 is away from pressure sensor 220.

[0044] Specifically, the pressure formation machine in the embodiment is a single-clamp double-drive cylinder 100 design, and when placed in the cabinet, it is also called a heat pressing and formation cabinet.

[0045] In the embodiment, the rack 400 is provided with at least two driving cylinders 100, which are regularly distributed on the rack 400 to form an arrangement, which is one of horizontal arrangement, vertical arrangement, triangular arrangement or special-shaped arrangement. Specifically, in the embodiment, the number of driving cylinders 100 is two, which are distributed on the two sides of the first support plate 410 in the horizontal arrangement. The arrangement is to correspond to the left and right two sets of battery clamp assemblies 300, and the two driving cylinders 100 respectively apply pressure to the two sets of battery clamp assemblies 300 from top to bottom, so as to ensure that the pressure borne by the two sets of battery clamp assemblies 300 is consistent and same. According to actual needs, the at least two driving cylinders 100 can also be distributed on the rack 400 in the vertical arrangement, triangular arrangement or special-shaped arrangement, which is mainly determined by the number, placement position and stress condition of the battery clamp assemblies 300.

[0046] In the embodiment, as shown in Figure 9 , the transmission shaft 110 is sleeved with a first protrusion 112 and a second protrusion 113, the first protrusion 112 and the second protrusion 113 respectively form two side walls of the groove 110; the second protrusion 113 is closer to the push plate 210, specifically, the first protrusion 112 and the second protrusion 113 are circular rings, and the bottom of the second protrusion 113 is flush with the bottom end surface of the transmission shaft 110, which contacts the pressure sensor 220 together when the transmission shaft 110 descends; as shown in Figure 2 , the second protrusion 113 is arranged between the stress plate 230 and the pressure sensor 220, and the transmission shaft 110 is aligned with the pressure sensor 220; the transmission shaft 110 is inserted into the card hole 231, which is used to guide the stress plate 230 to slide within the range of the groove 110.

[0047] In the embodiment, as shown in Figure 5 , when the stress plate 230 is attached to the second protrusion 113, the distance between the first protrusion 112 and the stress plate 230 is greater than the distance between the transmission shaft 110 and the pressure sensor 220. Specifically, when the transmission shaft 110 descends, the first protrusion 112 gradually approaches the stress plate 230, the bottom of the transmission shaft 110 first contacts the pressure sensor 220, and the reading of the pressure sensor 220 gradually increases; then when the first protrusion 112 contacts the stress plate 230, the reading of the pressure sensor 220 increases to the maximum, and the first protrusion 112 pushes the stress plate 230 to move downward.

[0048] In the embodiment, when the stress plate 230 slides towards the first protrusion 112, the transmission shaft 110 first contacts the pressure sensor 220, and when the stress plate 230 abuts against the first protrusion 112, the pressure sensor 220 is subjected to the maximum pressure from the transmission shaft 110.

[0049] In the embodiment, as shown in Figure 7As shown, the rack 400 comprises a first support plate 410 and guide shafts 420 connected together, the push plate 210 is slidingly connected with the guide shafts 420, and the guide shafts 420 are used to limit the movement of the push plate 210 assembly 200 along the guide shafts 420. Specifically, four guide shafts 420 are arranged at the four corners in the embodiment, which are used to limit the movement direction of the push plate 210 assembly 200 and the battery clamp assembly 300.

[0050] In the embodiment, the drive cylinder 100 is fixedly arranged on the first support plate 410, the push plate 210 assembly 200 and the battery clamp assembly 300 are arranged on the other side of the first support plate 410, and the transmission shaft 110 is clamped with the stress plate 230 through the first support plate 410. Specifically, two drive cylinders 100 are designed on the first support plate 410, the single drive cylinder 100 has a self-weight of 20-30 kg, and the first support plate 410 is sufficient to bear the weight of the two drive cylinders 100. The maximum diameter of the current standard drive cylinder 100 is 320 mm, and the maximum output pressure is 5T. In the embodiment, the battery clamp assembly 300 has 24 sub-plates 310, and the output pressure requirement of the cylinder is 7T. A single drive cylinder 100 cannot meet the pressure requirement. If a hydraulic cylinder or a gas-liquid supercharged cylinder is used, the output pressure of 7T can be achieved, but the height will be greatly increased, and transportation and installation will be very troublesome, and many elevator doors or room doors cannot be passed through. Therefore, the embodiment adopts the design of symmetrically distributing the double drive cylinders 100 on the left and right sides of the first support plate 410, which meets the pressure requirement and does not greatly increase the overall height of the pressure chemical machine.

[0051] In the embodiment, the rack 400 further comprises a connecting plate 430, the connecting plate 430 is fixedly connected with one end of the guide shaft 420, the first support plate 410 is sleeved on the guide shaft 420 and is detachably connected with the connecting plate 430; when the first support plate 410 and the connecting plate 430 are split, the first support plate 410 drives the drive cylinder 100 to slide on the guide shaft 420, so as to reduce the overall height of the pressure chemical machine. Specifically, as shown in FIG. 6, the first support plate 410 is connected with the connecting plate 430 through a plurality of bolts 440, and the first support plate 410 is connected with the connecting plate 430 through a plurality of bolts 440. Figure 7As shown, five through holes are formed on the connecting plate 430, among which the first, third and fifth through holes have smaller diameters, and the second and fourth through holes have larger diameters. The larger-diameter through holes are used for m20 screws, and the smaller-diameter through holes are used for m16 screws. The second and fourth through holes are used to fix the connecting plate 430 to the guide shaft 420, and the first, third and fifth through holes are used to detachably connect the connecting plate 430 to the first support plate 410. When the connecting plate 430 is fixed to the first support plate 410, the pressure generator works normally; when the connecting plate 430 is separated from the first support plate 410, the first support plate 410 can be moved downward as a whole with the driving cylinder 100, at this time, the sub-plates 310 are pressed together, the overall height of the pressure generator is reduced, which is convenient for transportation and installation, and can pass through smaller doors, such as elevator doors or room doors, without the need for additional wall removal or hoisting transportation.

[0052] In this embodiment, as shown in Figure 4 The rack 400 further includes a second support plate 440, and the first support plate 410 and the second support plate 440 are respectively arranged at both ends of the guide shaft 420, and the battery clamp assembly 300 is arranged between the push plate 210 and the second support plate 440.

[0053] In this embodiment, the battery clamp assembly 300 includes at least two sub-plates 310 arranged and combined to form an array, the sub-plates 310 at both ends of the array are respectively fixed to the push plate 210 and the second support plate 440, and the at least two sub-plates 310 are connected by an elastic member 320 which can be stretched. When the push plate 210 is close to the second support plate 440, the two adjacent sub-plates 310 are buckled to fix the battery. Specifically, the weight of a single-layer sub-plate 310 is ten kilograms, and in this embodiment, 24 layers of sub-plates 310 are designed, and one or two batteries can be clamped between two sub-plates 310. The sub-plate 310 is provided with a temperature sensor, an electrode connected to the battery, a heating assembly, a power supply interface, a series connection interface, a wire harness fixing structure and the like. The elastic member 320 is an elastically deformable article such as a belt or a spring, which is used to pull the adjacent sub-plates 310 together when the upper sub-plate 310 is pulled up by the transmission shaft 110. Optionally, a through hole can be formed on the sub-plate 310, and the guide shaft 420 passes through the through holes of the at least two sub-plates 310 in sequence to connect the at least two sub-plates 310 in series and limit the movement direction of the sub-plates 310.

[0054] Specifically, when the number of sub-plates 310 is large, the pressure on the lower sub-plates is not only from the transmission shaft 110, but also from the weight of the upper sub-plates 310. Tests show that when 24 sub-plates 310 are stacked together, the force on the bottom sub-plate 310 is 25 kg greater than that on the top sub-plate 310. If the pressure sensor 220 is arranged at the bottom of the second support plate 440 in a vertical pressure formation machine according to the prior art, the value detected by the pressure sensor 220 is prone to large deviation. Therefore, the pressure sensor 220 is arranged between the transmission shaft 110 and the force plate 230 in the embodiment, so that the reading detected is more accurate, and the hot-pressing process is better.

[0055] The working principle of the embodiment of the utility model is described as follows: before using the pressure formation machine, the technical parameters are determined according to the production process of the battery, such as the pressure value, the duration of the pressure, the change rule of the pressure, the heating temperature, the duration of the heating, the change rule of the heating temperature, the current and voltage during charging, and the like. The pressure formation machine is vertically placed, the driving cylinder 100 faces upward, and the connecting plate 430 is fixedly connected with the first support plate 410. First, the transmission shaft 110 rises, drives the sub-plates 310 to be apart from each other, and opens the clamp. Next, manual or automatic feeding is started, and the battery to be hot-pressed and formed is placed into the mold between the sub-plates 310. Next, the transmission shaft 110 descends, drives the pressure push plate 210 assembly 200 to descend as a whole, and presses the sub-plates 310 to clamp the battery. In this process, the pressure sensor 220 continuously detects the pressure value to determine whether the work is normal. Next, the hot-pressing and forming operation on the battery is started, the sub-plates 310 generate heat, and the transmission shaft 110 continuously applies pressure. In this process, the temperature sensor and the pressure sensor 220 continuously detect, and timely adjust the pressure and the temperature according to the set rule program. Next, when the pressure and the temperature reach the range preset in advance, the battery is charged and discharged. Finally, when all the processes are completed, the transmission shaft 110 rises, the sub-plates 310 are apart from each other, the clamp is opened, the battery is taken out, and the next process is prepared.

[0056] In summary, the embodiment of the utility model can solve the problem of inaccurate pressure detection of the vertical pressure formation machine by designing the structure of the groove 110, the bayonet 231 and the pressure sensor 220, and has the advantages of compact structure and convenient maintenance.

[0057] Moreover, the rack 400 further comprises a connecting plate 430, which is fixedly connected with one end of the guide shaft 420, and the first supporting plate 410 is sleeved on the guide shaft 420 and detachably connected with the connecting plate 430; when the first supporting plate 410 is separated from the connecting plate 430, the first supporting plate 410 drives the driving cylinder 100 to slide on the guide shaft 420, so as to reduce the overall height of the pressure formation machine. After the height is reduced, the pressure formation machine can easily pass through the elevator door or the room door, and the transportation and installation of the pressure formation machine are facilitated. After the position is determined, the first supporting plate 410 is lifted again, and the first supporting plate 410 is fixed with the connecting plate 430 again.

[0058] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A pressure formation machine for performing hot pressing and formation processes on batteries, characterized in that, Includes a drive cylinder, a pressure pusher assembly, a battery clamp assembly, and a frame for support; The drive cylinder includes a drive shaft with a groove on its side, and the drive shaft is used to drive the pressure push plate assembly to squeeze or pull the battery clamp assembly. The pressure push plate assembly includes a push plate, a pressure sensor, and a force plate. The push plate is slidably connected to the frame. The force plate and the pressure sensor are respectively fixedly connected to the push plate, and there is a gap between the force plate and the push plate. The pressure sensor is disposed in the gap. The force plate has a slot for engaging with the groove for transmission. The width of the groove is greater than the thickness of the force plate.

2. The pressure forming machine as described in claim 1, characterized in that, The frame is provided with at least two drive cylinders, which are arranged in a regular pattern on the frame, and the arrangement is one of horizontal, vertical, or triangular arrangement.

3. The pressure forming machine as described in claim 1, characterized in that, The drive shaft is fitted with a first protrusion and a second protrusion, the first protrusion and the second protrusion forming two sidewalls of the groove respectively; the second protrusion is closer to the push plate; the second protrusion is disposed between the force plate and the pressure sensor, and the drive shaft is aligned with the pressure sensor.

4. The pressure forming machine as described in claim 3, characterized in that, When the force plate is in contact with the second protrusion, the distance between the first protrusion and the force plate is greater than the distance between the drive shaft and the pressure sensor.

5. The pressure forming machine as described in claim 3, characterized in that, When the force plate slides toward the first protrusion, the drive shaft contacts the pressure sensor first, and when the force plate abuts against the first protrusion, the pressure sensor receives the maximum pressure from the drive shaft.

6. The pressure forming machine as described in claim 1, characterized in that, The frame includes a first support plate and a guide shaft that are detachably connected together, and the push plate is slidably connected to the guide shaft to limit the movement of the pressure push plate assembly along the guide shaft.

7. The pressure forming machine as described in claim 6, characterized in that, The drive cylinder is fixedly mounted on the first support plate, the pressure push plate assembly and the battery clamp assembly are mounted on the other side of the first support plate, and the drive shaft passes through the first support plate and is engaged with the force plate.

8. The pressure forming machine as described in claim 7, characterized in that, The frame also includes a connecting plate, which is fixedly connected to one end of the guide shaft. The first support plate is sleeved on the guide shaft and detachably connected to the connecting plate. When the first support plate is separated from the connecting plate, the first support plate drives the drive cylinder to slide on the guide shaft to reduce the overall height of the pressure forming machine.

9. The pressure forming machine as described in claim 7, characterized in that, The frame also includes a second support plate, the first support plate and the second support plate are respectively disposed at both ends of the guide shaft, and the battery clamp assembly is disposed between the push plate and the second support plate.

10. The pressure formation machine as described in claim 9, characterized in that, The battery clamp assembly includes at least two sub-plates arranged in an array. The sub-plates at both ends of the array are fixedly connected to the push plate and the second support plate, respectively. The at least two sub-plates are connected by a retractable elastic element. When the push plate approaches the second support plate, the two adjacent sub-plates snap together to fix the battery.

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