An electrochemical cell housing hot press

Abstract

The utility model relates to a kind of electric core shell hot press, including feeding assembly, hot-pressing assembly, detection assembly and discharging box, feeding assembly includes feeding disc, positioning clamp module, feeding material transfer module;Feeding disc is equipped with and is arranged in parallel shell material groove and positive material groove;Positioning clamp module includes mutually independent shell positioning clamp and positive positioning clamp;Feeding material transfer module includes longitudinal movement module, transverse movement module and is installed in the adsorption device of transverse movement module;The shell in shell material groove is moved to shell positioning clamp by the collaborative movement of longitudinal movement module and transverse movement module with adsorption device, and the positive pole in positive material groove is sequentially moved to positive positioning clamp calibration after transfer to shell positioning clamp and forms pre-press assembly body.This utility model provides a kind of electric core shell hot press, feeding assembly is realized high-speed continuous operation while ensuring assembly accuracy, can make single-machine productivity improve, and reduce product failure rate.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and more specifically, to a hot press for battery cell casings. Background Technology

[0002] In battery production, the hot pressing of the cell casing is a crucial step. Traditional hot pressing equipment for cell casings has several problems. For example, during material feeding, the series feeding method easily leads to interference between different processes, resulting in low material preparation efficiency. Furthermore, in the material positioning and calibration stages, traditional equipment struggles to effectively eliminate assembly errors caused by the accumulation of material tolerances, affecting the coaxiality and overall quality of the product, necessitating improvement. Utility Model Content

[0003] In view of this, the present invention provides a hot press for battery cell housings. The feeding assembly ensures assembly accuracy while enabling high-speed continuous operation, thereby increasing single-machine capacity and reducing product defect rate.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A hot pressing machine for battery cell casings includes a feeding assembly, a hot pressing assembly, a detection assembly, and a unloading box. The feeding assembly includes a feeding tray, a positioning fixture module, and a feeding material transfer module. The feeding tray has a casing material trough and a positive electrode material trough arranged side by side. The positioning fixture module includes an independent feeding casing positioning fixture and a positive electrode positioning fixture. The feeding material transfer module includes a longitudinal moving module, a transverse moving module, and an adsorption device installed on the transverse moving module. The adsorption device, through the coordinated movement of the longitudinal moving module and the transverse moving module, moves the casings in the casing material trough to the feeding casing positioning fixture, and sequentially moves the positive electrodes in the positive electrode material trough to the positive electrode positioning fixture for calibration before transferring them to the feeding casing positioning fixture to form a pre-pressed assembly. The hot pressing assembly is equipped with a pressing mechanism with a heating module for hot pressing the pre-pressed assembly. The detection assembly includes an electrical performance detection module linked to the hot pressing assembly, which determines the hot pressing quality through electrical signal feedback.

[0006] By adopting a side-by-side layout design for the shell material tank and the positive electrode material tank, along with independently controlled loading shell positioning fixtures and positive electrode positioning fixtures, parallel processing of dual material flow lines is achieved. This architecture effectively avoids the process interference problems caused by traditional serial feeding, allowing the shell positioning and positive electrode calibration processes to be executed simultaneously, thus improving material preparation efficiency compared to existing technologies. The material transfer module uses longitudinal and lateral movement modules in an orthogonal coordinate system to coordinate their motion, combined with an adsorption device, to construct a three-dimensional precision motion system. This structure, through optimized planning of the XY axis motion trajectory, ensures both accurate overlapping and positioning of the shell and the positive electrode, and achieves anti-collision protection under high-speed movement. The formation process of the pre-compression assembly adopts a staged positioning strategy: after the shell is positioned once, it maintains a fixed posture; after the positive electrode completes independent calibration, it achieves precise alignment with the shell through a second positioning. This segmented positioning method effectively eliminates assembly errors caused by the superposition of material tolerances, and can effectively reduce the coaxiality deviation of the pre-compression assembly.

[0007] The synergistic effect of the above-mentioned technical features enables the feeding components of this hot press to achieve high-speed continuous operation while ensuring assembly accuracy, thereby increasing the single-machine capacity and reducing the product defect rate.

[0008] Preferably, the positive electrode positioning fixture includes a fixture base, a fixture slider forming a sliding pair with the fixture base, a linear drive mechanism connected to the fixture slider to drive its reciprocating motion, and a centering clamping unit linked to the fixture slider. The centering clamping unit includes a support platform, two centering clamps, and two inclined guide grooves. The support platform is fixed to the fixture base and is used to support the positive electrode. The two centering clamps are symmetrically distributed on both sides of the support platform, and each centering clamp has a sliding guide part at its bottom that fits into the support platform. The two inclined guide grooves are opened in the fixture slider and are symmetrically distributed in a V-shape. A guide shaft connecting the centering clamp is slidably fitted in each inclined guide groove. When the linear drive mechanism drives the fixture slider to move, the inclined guide grooves constrain the movement path of the centering clamps through the guide shafts, so that the two centering clamps move synchronously in opposite directions under the cooperation of the sliding guide part and the support platform, completing the self-centering clamping or release of the positive electrode.

[0009] The clamp base provides stable support, and the sliding pair between the clamp slider and the base ensures smooth reciprocating motion, improving motion accuracy. A linear drive mechanism precisely controls the slider's movement, providing stable power to the centering clamping unit. Within the centering clamping unit, the support platform provides stable support for the positive pole, and symmetrically distributed centering blocks, in conjunction with the sliding guide, achieve uniform clamping. V-shaped symmetrical inclined guide grooves precisely constrain the movement path of the centering blocks through the guide shaft, achieving self-centering clamping and release, improving positioning efficiency and accuracy, and reducing equipment complexity and cost.

[0010] Preferably, the supporting platform of the loading housing positioning fixture is provided with a through hole, the position of which corresponds coaxially with the center of the bottom of the housing.

[0011] The support platform features a through hole coaxial with the center of the housing's bottom, providing a precise positional reference for housing placement, reducing machining deviations, and improving production stability and product quality consistency. In subsequent processing, the through hole facilitates operation on the bottom of the housing and also provides channels for heat dissipation and ventilation, further contributing to improved product quality.

[0012] Preferably, the device further includes a displacement limiting component, which includes a limiting block and a rotating scale. The limiting block is rigidly fixed along the moving direction of the clamp slider, and its contact surface is parallel to the end limiting surface of the clamp slider. The rotating scale is linked with the limiting block, and its scale range corresponds to the designed stroke of the clamp slider. When the clamp slider moves to the stroke set by the rotating scale, the contact surface of the limiting block and the end limiting surface of the clamp slider form a hard contact limiting.

[0013] The displacement limiting assembly provides reliable safety and precise stroke control. A rigidly fixed limit block is parallel to the limiting surface at the end of the clamp slider, ensuring stable positioning. A rotating scale is linked to the limit block, with graduations corresponding to the slider's designed stroke, allowing operators to intuitively understand the slider's position and perform precise stroke settings and adjustments. The hard-contact limiting method is reliable, can withstand impact forces, and ensures safe and stable equipment operation.

[0014] Preferably, the pre-compression assembly is formed by a pre-compression actuator, which includes a lifting drive unit disposed below the support platform and a pre-compression column connected to the lifting drive unit. The top shape of the pre-compression column matches the bottom contour of the housing. When the adsorption device moves the positive electrode to the loading housing positioning fixture, the lifting drive unit drives the pre-compression column through the through hole to abut the bottom of the housing. At the same time, the adsorption device applies vertical pressure to the housing, so that the positive electrode and the housing form a pre-compression assembly under the synergistic action of the pre-compression column and the adsorption device.

[0015] The pre-compression actuator is highly efficient and precise. The lifting drive unit is located below the support platform, making efficient use of space and ensuring stable operation. The top of the pre-compression column matches the bottom contour of the housing, enabling uniform pressure application and improving the pre-compression effect. When the adsorption device moves the positive electrode, the lifting drive unit works in conjunction with the adsorption device, applying pressure from different directions to quickly and accurately form the pre-compression assembly, improving production efficiency and product qualification rate.

[0016] Preferably, the longitudinal movement module includes a first longitudinal drive unit and a second longitudinal drive unit, which are respectively connected to the loading tray and the positioning fixture module, and the lateral movement module is straddling the first longitudinal drive unit and the second longitudinal drive unit.

[0017] The longitudinal movement module employs dual drive units. The first longitudinal drive unit precisely controls the longitudinal movement of the feeding tray, improving feeding accuracy and efficiency. The second longitudinal drive unit provides stable power to the positioning fixture module, working in conjunction with other components. A transverse movement module spans the module, working in tandem with the longitudinal movement module to extend the movement range of the adsorption device, improving feeding and assembly efficiency and accuracy.

[0018] Preferably, the adsorption device includes a shell adsorption unit and a positive electrode adsorption unit that are separately arranged, corresponding to the placement and removal positions of the shell material tank and the positive electrode material tank, respectively.

[0019] The adsorption device employs a separate housing adsorption unit and a positive electrode adsorption unit, which can be optimized according to the characteristics of the housing and the positive electrode, making it highly targeted. The two units correspond to the material loading and unloading positions in the hopper, and can operate independently and simultaneously, shortening the feeding time, improving efficiency, and facilitating maintenance and replacement, thereby reducing maintenance costs and downtime.

[0020] Preferably, it also includes a hot-press material transfer module, which includes a transverse module and a first adsorption unit, a second adsorption unit, and a third adsorption unit separately installed on the transverse module. The transverse module sequentially spans the positioning fixture module, the hot-press assembly, the detection assembly, and the unloading box. The first adsorption unit delivers the pre-pressed assembly in the loading housing positioning fixture to the hot-press assembly, the second adsorption unit delivers the hot-pressed assembly in the hot-press assembly to the detection assembly, and the third adsorption unit delivers the hot-pressed assembly in the detection assembly to the unloading box. The first adsorption unit, the second adsorption unit, and the third adsorption unit are synchronously transferred by the drive of the transverse module, and the transfer paths do not interfere with each other.

[0021] The hot-press material transfer module constructs an efficient material transfer channel. The lateral movement module spans multiple components, providing stable lateral power to the adsorption units. The three separate adsorption units have clearly defined functions, moving synchronously without interfering with each other's paths, ensuring accurate, safe, and efficient material transfer between components, optimizing the production process and reducing costs.

[0022] Preferably, the hot pressing assembly further includes a hot pressing shell positioning fixture and a temperature control system, and the pressing mechanism includes an upper pressing column and a lower pressing column that clamp the hot pressing assembly in the hot pressing shell positioning fixture.

[0023] In hot-pressing assemblies, the hot-pressing shell positioning fixture provides precise positioning and stable support for the hot-pressed assembly, improving product quality consistency. The temperature control system precisely controls the temperature, ensuring a stable and repeatable hot-pressing process and optimizing product performance. The upper and lower clamping pressing mechanism ensures uniform force distribution on the hot-pressed assembly, reducing internal defects and improving versatility and applicability.

[0024] Preferably, the detection component further includes a detection housing positioning fixture. By applying a preset current or voltage to the hot-pressed assembly in the detection housing positioning fixture, the conduction resistance or potential difference is detected to determine the bonding quality of the hot-pressed interface. The temperature control system and the detection component form a closed-loop feedback control.

[0025] The positioning fixture of the testing component's housing ensures the stability of the hot-pressed assembly during testing, guaranteeing accurate and reliable results. The quality of the hot-pressed interface bonding is determined by detecting conduction resistance or potential difference, a fast, accurate, and non-destructive process. The temperature control system forms a closed-loop feedback control with the testing component, adjusting hot-pressing parameters in real time to improve product quality stability and consistency, reduce defect rates, and increase efficiency.

[0026] The advantages of this utility model compared to the prior art are:

[0027] This utility model discloses a hot press for battery cell housings. The feeding assembly ensures assembly accuracy while enabling high-speed continuous operation, increasing single-machine capacity and reducing product defect rates. By adopting a side-by-side layout design for the housing and positive electrode material tanks, coupled with independently controlled housing and positive electrode positioning fixtures, parallel processing of dual material flow lines is achieved. This architecture effectively avoids process interference problems caused by traditional serial feeding, allowing housing positioning and positive electrode calibration processes to be executed simultaneously, improving material preparation efficiency compared to existing technologies. The material transfer module employs a three-dimensional precision motion system, utilizing longitudinal and lateral movement modules in an orthogonal coordinate system, combined with an adsorption device. This structure, through optimized planning of the XY axis motion trajectory, ensures precise overlapping and positioning of the housing and positive electrode while providing collision protection during high-speed movement. The pre-pressed assembly formation process adopts a staged positioning strategy: the housing maintains a fixed posture after initial positioning, while the positive electrode, after independent calibration, achieves precise alignment with the housing through a secondary positioning. This segmented positioning method effectively eliminates assembly errors caused by the superposition of material tolerances, and can effectively reduce the coaxiality deviation of the pre-compressed assembly. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural diagram of a hot press machine for battery cell housing according to an embodiment of the present invention.

[0030] Figure 2This is a structural diagram of a hot press machine for battery cell housing according to an embodiment of the present invention, viewed from another angle.

[0031] Figure 3 This is a partial structural diagram of a hot press machine for battery cell housing according to an embodiment of the present invention.

[0032] Figure 4 This is a partial structural view of a hot press machine for battery cell housing according to an embodiment of the present invention.

[0033] Figure 5 This is a structural diagram of a positive electrode positioning clamp according to an embodiment of the present invention.

[0034] Figure 6 This is a structural diagram of the positive electrode positioning fixture according to another embodiment of the present invention.

[0035] Feeding assembly (1), feeding tray (11), shell material trough (111), positive electrode material trough (112), positioning clamp module (12), feeding shell positioning clamp (121), positive electrode positioning clamp (122), clamp base (1221), clamp slider (1222), linear drive mechanism (1223), centering clamping unit (1224), supporting platform (12241), centering clamp (12242), sliding guide (122421), inclined guide groove (12243), guide shaft (122431), feeding material transfer module (13), longitudinal movement module (131), first longitudinal drive unit (1311), second longitudinal drive unit (1312), lateral movement module (132), adsorption device (133), shell adsorption unit (1331), positive electrode adsorption unit (1332).

[0036] Hot pressing assembly (2), pressing mechanism (21), upper pressure column (211), lower pressure column (212), hot pressing shell positioning fixture (22), temperature control system (23).

[0037] Testing components (3), electrical performance testing module (31), and testing housing positioning fixture (32).

[0038] Feed box (4).

[0039] Displacement limiting component (5), limiting block (51), rotating scale (52).

[0040] Preload actuator (6), lifting drive unit (61), preload column (62).

[0041] Hot-press material transfer module (7), transverse module (71), first adsorption unit (72), second adsorption unit (73), third adsorption unit (74). Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0044] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0046] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0047] This embodiment provides a hot pressing machine for battery cell casings, including a feeding assembly 1, a hot pressing assembly 2, a detection assembly 3, and a discharge box 4. The feeding assembly 1 includes a feeding tray 11, a positioning clamp module 12, and a feeding material transfer module 13. The feeding tray 11 has a casing material trough 111 and a positive electrode material trough 112 arranged side by side. The positioning clamp module 12 includes an independent feeding casing positioning clamp 121 and a positive electrode positioning clamp 122. The feeding material transfer module 13 includes a longitudinal moving module 131, a transverse moving module 132, and an adsorption device 133 installed on the transverse moving module. The adsorption device 133, through the coordinated movement of the longitudinal moving module 131 and the transverse moving module 132, transfers the shell in the shell material tank 111 to the loading shell positioning fixture 121, and sequentially transfers the positive electrode in the positive electrode material tank 112 to the positive electrode positioning fixture 122 for calibration before transferring it to the loading shell positioning fixture 121 to form a pre-pressed assembly; the hot pressing assembly 2 is equipped with a pressing mechanism 21 with a heating module for hot pressing the pre-pressed assembly; the detection assembly 3 includes an electrical performance detection module 31 linked to the hot pressing assembly 2, which determines the hot pressing quality through electrical signal feedback.

[0048] By adopting a side-by-side layout design for the shell material tank 111 and the positive electrode material tank 112, and cooperating with independently controlled loading shell positioning fixture 121 and positive electrode positioning fixture 122, parallel processing of dual material flow lines is achieved. This architecture effectively avoids the process interference problem caused by traditional serial feeding, allowing the shell positioning and positive electrode calibration processes to be executed synchronously, thus improving material preparation efficiency compared to existing technologies. The material transfer module uses the longitudinal movement module 131 and the lateral movement module 132 in an orthogonal coordinate system to move in tandem, combined with the adsorption device 133, to construct a three-dimensional precision motion system. This structure, through optimized planning of the XY axis motion trajectory, ensures both accurate overlapping and positioning of the shell and the positive electrode, and achieves anti-collision protection under high-speed movement. The formation process of the pre-compression assembly adopts a staged positioning strategy: after the shell is positioned once, it maintains a fixed posture, and after the positive electrode completes independent calibration, it achieves precise alignment with the shell through a second positioning. This segmented positioning method effectively eliminates the assembly error caused by the superposition of material tolerances, and can effectively reduce the coaxiality deviation of the pre-compression assembly.

[0049] The synergistic effect of the above-mentioned technical features enables the feeding component 1 of this hot press to achieve high-speed continuous operation while ensuring assembly accuracy, thereby increasing the single-machine capacity and reducing the product defect rate.

[0050] In this embodiment, the positive electrode positioning fixture 122 includes a fixture base 1221, a fixture slider 1222 forming a sliding pair with the fixture base 1221, a linear drive mechanism 1223 driving the reciprocating motion of the fixture slider 1222 through a transmission connection, and a centering clamping unit 1224 linked to the fixture slider 1222. The centering clamping unit 1224 includes a support platform 12241, two centering clamping blocks 12242, and two inclined guide grooves 12243. The support platform 12241 is fixed to the fixture base 1221 and is used to support the positive electrode. The two centering clamping blocks 12242 are symmetrically distributed on both sides of the support platform 12241. 2. The bottom is provided with a sliding guide part 122421 that fits into the support platform 12241; two inclined guide grooves 12243 are opened on the clamp slider 1222 and are distributed symmetrically in a V shape. Each inclined guide groove 12243 is slidably fitted with a guide shaft 122431 that connects to the centering clamp block 12242; when the linear drive mechanism 1223 drives the clamp slider 1222 to move, the inclined guide grooves 12243 constrain the movement path of the centering clamp block 12242 through the guide shaft 122431, so that the two centering clamp blocks 12242 move synchronously in opposite directions under the cooperation of the sliding guide part 122421 and the support platform 12241, and complete the self-centering clamping or release of the positive electrode.

[0051] The clamp base 1221 provides stable support, and the sliding pair between the clamp slider 1222 and the base ensures smooth reciprocating motion, improving motion accuracy. The linear drive mechanism 1223 precisely controls the slider's movement, providing stable power to the centering clamping unit 1224. In the centering clamping unit 1224, the support platform 12241 provides stable support for the positive pole, and the symmetrically distributed centering clamping blocks 12242, in conjunction with the sliding guide 122421, achieve uniform clamping. The V-shaped symmetrical inclined guide groove 12243, through the guide shaft 122431, precisely constrains the movement path of the centering clamping blocks 12242, achieving self-centering clamping and release, improving positioning efficiency and accuracy, and reducing equipment complexity and cost.

[0052] In this embodiment, the supporting platform of the loading housing positioning fixture 121 is provided with a through hole, the position of which is coaxial with the center of the bottom of the housing.

[0053] The support platform features a through hole coaxial with the center of the housing's bottom, providing a precise positional reference for housing placement, reducing machining deviations, and improving production stability and product quality consistency. In subsequent processing, the through hole facilitates operation on the bottom of the housing and also provides channels for heat dissipation and ventilation, further contributing to improved product quality.

[0054] In this embodiment, a displacement limiting component 5 is also included, which includes a limiting block 51 and a rotating scale 52. The limiting block 51 is rigidly fixed along the moving direction of the clamp slider 1222, and its abutting surface is parallel to the end limiting surface of the clamp slider 1222. The rotating scale 52 is linked with the limiting block 51, and its scale range corresponds to the designed stroke of the clamp slider 1222. When the clamp slider 1222 moves to the stroke set by the rotating scale 52, the abutting surface of the limiting block 51 forms a hard contact limiting with the end limiting surface of the clamp slider 1222.

[0055] The displacement limiting component 5 provides reliable safety and precise stroke control. The rigidly fixed limiting block 51 is parallel to the limiting surface at the end of the clamp slider 1222, ensuring stable limiting. The rotating scale 52 is linked to the limiting block 51, with graduations corresponding to the slider's designed stroke, allowing operators to intuitively understand the slider's position and perform precise stroke setting and adjustment. The hard contact limiting method is reliable, can withstand impact forces, and ensures the safe and stable operation of the equipment.

[0056] In this embodiment, the pre-compression assembly is formed by the pre-compression actuator 6. The pre-compression actuator 6 includes a lifting drive unit 61 disposed below the support platform and a pre-compression column 62 connected to the lifting drive unit 61. The top shape of the pre-compression column 62 matches the bottom contour of the housing. When the adsorption device 133 moves the positive electrode to the loading housing positioning fixture 121, the lifting drive unit 61 drives the pre-compression column 62 through the through hole to abut the bottom of the housing. At the same time, the adsorption device 133 applies vertical pressure to the housing, so that the positive electrode and the housing form a pre-compression assembly under the synergistic action of the pre-compression column 62 and the adsorption device 133.

[0057] The pre-compression actuator 6 is highly efficient and precise. The lifting drive unit 61 is located below the support platform, making efficient use of space and operating stably. The top of the pre-compression column 62 matches the contour of the bottom of the housing, enabling uniform pressure application and improving the pre-compression effect. When the adsorption device 133 moves the positive electrode, the lifting drive unit 61 and the adsorption device 133 work together to apply pressure from different directions, quickly and accurately forming the pre-compression assembly, improving production efficiency and product qualification rate.

[0058] In this embodiment, the longitudinal movement module 131 includes a first longitudinal drive unit 1311 and a second longitudinal drive unit 1312, which are respectively connected to the loading tray 11 and the positioning fixture module 12. The transverse movement module 132 is straddling the first longitudinal drive unit 1311 and the second longitudinal drive unit 1312.

[0059] The longitudinal movement module 131 employs dual drive units. The first longitudinal drive unit 1311 precisely controls the longitudinal movement of the loading tray 11, improving loading accuracy and efficiency. The second longitudinal drive unit 1312 provides stable power to the positioning fixture module 12, working in conjunction with other components. The transverse movement module 132 spans the module, working in conjunction with the longitudinal movement module 131 to extend the movement range of the adsorption device 133, improving loading and assembly efficiency and accuracy.

[0060] In this embodiment, the adsorption device 133 includes a separately configured housing adsorption unit 1331 and a positive electrode adsorption unit 1332, which correspond to the placement and removal positions of the housing material tank 111 and the positive electrode material tank 112, respectively.

[0061] The adsorption device 133 adopts a separate housing adsorption unit 1331 and a positive electrode adsorption unit 1332, which can be optimized according to the characteristics of the housing and the positive electrode, making it highly targeted. The two units correspond to the material tank pick-up and drop-off positions respectively, and can be operated simultaneously and independently, shortening the feeding time, improving efficiency, and facilitating maintenance and replacement, thus reducing maintenance costs and downtime.

[0062] In this embodiment, a hot-press material transfer module 7 is also included, which includes a transverse module 71 and a first adsorption unit 72, a second adsorption unit 73, and a third adsorption unit 74 separately installed on the transverse module 71. The transverse module 71 sequentially spans the positioning fixture module 12, the hot-press assembly 2, the detection assembly 3, and the unloading box 4. The first adsorption unit 72 delivers the pre-pressed assembly in the loading housing positioning fixture 121 to the hot-press assembly 2, the second adsorption unit 73 delivers the hot-pressed assembly in the hot-press assembly 2 to the detection assembly 3, and the third adsorption unit 74 delivers the hot-pressed assembly in the detection assembly 3 to the unloading box 4. The first adsorption unit 72, the second adsorption unit 73, and the third adsorption unit 74 are synchronously transferred by the drive of the transverse module 71, and the transfer paths do not interfere with each other.

[0063] The hot-press material transfer module 7 constructs an efficient material transfer channel. The lateral movement module 71 spans multiple components, providing stable lateral power to the adsorption units. The three separate adsorption units 72, 73, and 74 have clearly defined functions, move synchronously, and do not interfere with each other's paths, ensuring accurate, safe, and efficient material transfer between the components, optimizing the production process, and reducing costs.

[0064] In this embodiment, the hot pressing assembly 2 further includes a hot pressing shell positioning fixture 22 and a temperature control system 23, and the pressing mechanism 21 includes an upper pressing column 211 and a lower pressing column 212 that clamp the hot pressing assembly in the hot pressing shell positioning fixture.

[0065] In the hot-press assembly 2, the hot-press shell positioning fixture 22 provides precise positioning and stable support for the hot-pressed assembly, improving product quality consistency. The temperature control system 23 precisely controls the temperature, ensuring a stable and repeatable hot-pressing process and optimizing product performance. The upper and lower clamping pressing mechanism 21 ensures uniform force distribution on the hot-pressed assembly, reducing internal defects and improving versatility and applicability.

[0066] In this embodiment, the detection component 3 also includes a detection housing positioning fixture 32. By applying a preset current or voltage to the hot-pressed assembly in the detection housing positioning fixture, the conduction resistance or potential difference is detected to determine the bonding quality of the hot-pressed interface. The temperature control system 23 and the detection component 3 form a closed-loop feedback control.

[0067] The positioning fixture 32 of the detection housing in the detection component 3 ensures the stability of the hot-pressed assembly position during testing, guaranteeing accurate and reliable test results. The quality of the hot-pressed interface bonding is determined by detecting the conduction resistance or potential difference, which is fast, accurate, and non-destructive. The temperature control system 23 forms a closed-loop feedback control with the detection component 3, adjusting hot-pressing parameters in real time to improve product quality stability and consistency, reduce the defect rate, and increase efficiency.

[0068] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot press for battery cell housings, characterized in that, include The feeding assembly (1) includes: The feeding tray (11) is provided with a shell material trough (111) and a positive electrode material trough (112) arranged side by side. The positioning fixture module (12) includes an independent loading housing positioning fixture (121) and a positive electrode positioning fixture (122). The material transfer module (13) includes a longitudinal moving module (131), a transverse moving module (132), and an adsorption device (133) installed on the transverse moving module. The adsorption device (133) transfers the shell in the shell material tank (111) to the shell positioning fixture (121) through the coordinated movement of the longitudinal moving module (131) and the transverse moving module (132), and sequentially transfers the positive electrode in the positive electrode material tank (112) to the positive electrode positioning fixture (122) for calibration, and then transfers it to the shell positioning fixture (121) to form a pre-pressed assembly. The hot pressing assembly (2) is equipped with a pressing mechanism (21) with a heating module for performing hot pressing on the pre-pressed assembly; The detection component (3) includes an electrical performance detection module (31) linked to the hot pressing component (2), which determines the hot pressing quality through electrical signal feedback; Feed box (4).

2. The hot press for battery cell housing according to claim 1, characterized in that, The positive electrode positioning fixture (122) includes a fixture base (1221), a fixture slider (1222) forming a sliding pair with the fixture base (1221), a linear drive mechanism (1223) connected to the fixture slider (1222) to drive its reciprocating motion, and a centering clamping unit (1224) linked to the fixture slider (1222); the centering clamping unit (1224) includes: The support platform (12241) supporting the positive electrode is fixed to the clamp base (1221). Two pairs of central clamping blocks (12242) are symmetrically distributed on both sides of the supporting platform (12241), and each pair of central clamping blocks (12242) has a sliding guide part (122421) at the bottom that fits into the supporting platform (12241). Two inclined guide grooves (12243) are provided on the clamp slider (1222) and are distributed symmetrically in a V-shape. Each inclined guide groove (12243) is slidably fitted with a guide shaft (122431) that connects to the centering clamp (12242). When the linear drive mechanism (1223) drives the clamp slider (1222) to move, the inclined guide grooves (12243) constrain the movement path of the centering clamp (12242) through the guide shaft (122431), so that the two centering clamps (12242) move synchronously in opposite directions under the cooperation of the sliding guide part (122421) and the supporting platform (12241), thus completing the self-centering clamping or release of the positive electrode.

3. The cell housing hot press according to claim 2, characterized in that, The supporting platform of the loading housing positioning fixture (121) is provided with a through hole, the position of which is coaxial with the center of the bottom of the housing.

4. The hot press for battery cell housing according to claim 1, characterized in that, It also includes a displacement limiting component (5), which includes: The limiting block (51) is rigidly fixed along the moving direction of the clamp slider (1222), and its abutting surface is set parallel to the end limiting surface of the clamp slider (1222). The rotating scale (52) is linked with the limiting block (51), and its scale range corresponds to the design stroke of the clamp slider (1222). When the clamp slider (1222) moves to the stroke set by the rotating scale (52), the contact surface of the limiting block (51) and the end limiting surface of the clamp slider (1222) form a hard contact limit.

5. The cell housing hot press according to claim 3, characterized in that, The pre-compression assembly is formed by a pre-compression actuator (6). The pre-compression actuator (6) includes a lifting drive unit (61) located below the support platform and a pre-compression column (62) connected to the lifting drive unit (61). The top shape of the pre-compression column (62) matches the bottom contour of the shell. When the adsorption device (133) moves the positive electrode to the loading shell positioning fixture (121), the lifting drive unit (61) drives the pre-compression column (62) through the through hole to abut the bottom of the shell. At the same time, the adsorption device (133) applies vertical pressure to the shell, so that the positive electrode and the shell form a pre-compression assembly under the synergistic action of the pre-compression column (62) and the adsorption device (133).

6. The cell housing hot press according to claim 1, characterized in that, The longitudinal moving module (131) includes a first longitudinal driving unit (1311) and a second longitudinal driving unit (1312), which are respectively connected to the loading tray (11) and the positioning fixture module (12). The transverse moving module (132) is located between the first longitudinal driving unit (1311) and the second longitudinal driving unit (1312).

7. The cell housing hot press according to claim 1, characterized in that, The adsorption device (133) includes a shell adsorption unit (1331) and a positive electrode adsorption unit (1332) that are separately arranged, corresponding to the placement and removal positions of the shell material tank (111) and the positive electrode material tank (112), respectively.

8. The hot press for battery cell housing according to claim 1, characterized in that, It also includes a hot-pressing material transfer module (7), which contains The transverse module (71) sequentially crosses the positioning fixture module (12), the hot pressing component (2), the detection component (3), and the unloading box (4); The components are separately installed on the transverse module (71). The first adsorption unit (72) delivers the pre-pressed assembly in the loading housing positioning fixture (121) to the hot pressing assembly (2). The second adsorption unit (73) delivers the hot-pressed assembly in the hot-pressing assembly (2) to the detection assembly (3); The third adsorption unit (74) delivers the hot-pressed assembly in the detection component (3) to the unloading box (4); the first adsorption unit (72), the second adsorption unit (73) and the third adsorption unit (74) are synchronously transferred by the drive of the transverse module (71), and the transfer paths do not interfere with each other.

9. The hot press for battery cell housing according to claim 1, characterized in that, The hot pressing assembly (2) also includes a hot pressing shell positioning fixture (22) and a temperature control system (23). The pressing mechanism (21) includes an upper pressing column (211) and a lower pressing column (212) that clamp the hot pressing assembly in the hot pressing shell positioning fixture.

10. The cell housing hot press according to claim 9, characterized in that, The detection component (3) also includes a detection housing positioning fixture (32). By applying a preset current or voltage to the hot-pressed assembly in the detection housing positioning fixture, the conduction resistance or potential difference is detected to determine the bonding quality of the hot-pressed interface. The temperature control system (23) and the detection component (3) form a closed-loop feedback control.

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