Formation hot-pressing jig
By using a pressurizing mechanism and a ball screw transmission system, the stability and adjustment problems of traditional hot pressing fixtures have been solved, enabling stable clamping and precise adjustment of the battery, and improving the operational stability and accuracy of the formation machine.
Patent Information
- Application Number
- CN202520264264.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Traditional hot-press fixtures are not stable when clamping batteries, are prone to shaking and noise, and cannot adjust height and thickness, resulting in insufficient clamping tightness and easy damage to batteries.
The hot pressing mechanism and ball screw transmission system, combined with servo motor drive, enable stable movement and height and thickness adjustment of the hot pressing mechanism. The ball screw and guide rod support reduce noise, and the locking structure enables precise adjustment.
It improves the stability and formation accuracy of the hot pressing fixture, reduces noise, ensures the safe clamping of the battery, and enhances the pressure uniformity and accuracy of the formation machine.
Smart Images

Figure CN223828443U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of formation machine, specifically relates to a formation hot-pressing jig. BACKGROUND
[0002] The formation machine is suitable for the formation charge-discharge of electric vehicle and automobile battery, and the formation machine for electric vehicle battery needs to be used with the storage battery inspection and matching instrument, has the functions of activating the storage battery plate and improving the capacity of the battery.
[0003] When the formation machine detects the storage battery, it needs to clamp it, and the prior art usually uses a hot-pressing jig to implement it, but the traditional hot-pressing jig usually uses a separate supporting structure to extrude and push, and its stability is poor, and it will shake during clamping, and the friction will produce noise, the clamping fastness cannot be guaranteed, and the storage battery is easy to be damaged, in addition, the hot-pressing mechanism of the traditional hot-pressing jig cannot be adjusted according to the height and thickness of the storage battery. UTILITY MODEL CONTENTS
[0004] The utility model aims at overcoming the defects of prior art, providing a formation hot-pressing jig, which has the advantages of improving stability and reducing noise, and has the functions of height and thickness adjustment.
[0005] The technical scheme of the utility model is as follows:
[0006] A formation hot-pressing jig, comprising a mounting seat, a pressing mechanism is arranged on the mounting seat, the mounting seat is connected with a side plate through four front and rear pull rods, the mounting seat and the side plate are arranged opposite to each other, four ball screws are rotatably installed between the mounting seat and the side plate, the pressing mechanism is in transmission connection with the four ball screws, a heat insulation plate is arranged on the inner side of the side plate, two guide rods are installed between the mounting seat and the heat insulation plate, a push plate is movably installed on the four ball screws and the two guide rods, a plurality of hot-pressing mechanisms movably installed on the two guide rods are arranged between the push plate and the heat insulation plate.
[0007] The hot pressing mechanism includes a first bearing plate, a second bearing plate, a lifting connecting plate, several extrusion structures, a first lifting guide rail, a second lifting guide rail, a first lifting base, a second lifting base, a first pressure plate seat, and a second pressure plate seat. The first bearing plate and the second bearing plate are respectively sleeved on two guide rods. The lifting connecting plate is movably connected vertically between the first bearing plate and the second bearing plate. The several extrusion structures are installed front and rear on the lifting connecting plate. An upward-opening triangular battery extrusion placement groove is installed between the lifting connecting plates of two adjacent hot pressing mechanisms. The first lifting guide rail and the second lifting guide rail are respectively vertically installed below the first bearing plate and the second bearing plate. The first lifting base and the second lifting base are respectively movably installed on the first lifting guide rail and the second lifting guide rail. The base and the second lifting base are equipped with first locking structures corresponding to the first and second lifting guide rails, respectively. The first and second lifting bases are provided with left and right sliding grooves. The first and second pressure plates are movably installed on the left and right sliding grooves of the first and second lifting bases, respectively. The first and second pressure plates are provided with first sliding inclined surfaces. The front and rear sides of the lifting connecting plate are provided with second sliding inclined surfaces that movably abut against the first sliding inclined surfaces of the first and second pressure plates, respectively. The first and second lifting guide rails are equipped with second locking structures corresponding to the lifting connecting plate. A pressure plate located on one side of the lifting connecting plate is installed on one side of the first and second pressure plates. The triangular battery compression placement groove is located between the two pressure plates.
[0008] Furthermore, the pressurizing mechanism includes a servo motor, a transmission gear, two driven gears, two driving gears, and four brake gears. The servo motor is located on the outside of the mounting base, and the transmission gear, two driven gears, two driving gears, and four brake gears are all rotatably mounted inside the mounting base. The motor shaft of the servo motor is connected to the transmission gear, and both sides of the transmission gear mesh sequentially with the driven gears, driving gears, and two brake gears. One end of the ball screw is connected to the brake gear.
[0009] Furthermore, the extrusion structure includes an extrusion seat, a first extrusion block, a second extrusion block, and two tension springs. The extrusion seat is detachably mounted on the lifting connecting plate. The first extrusion block and the second extrusion block are respectively movably disposed on the left and right sides of the extrusion seat. The upper parts of the first extrusion block and the second extrusion block are rotatably connected to the extrusion seat. The middle parts of the first extrusion block and the second extrusion block protrude to both sides, and tension springs are respectively provided between them and the extrusion seat.
[0010] Furthermore, the lifting connecting plate has several first mounting holes in the same row, and the extrusion seat of the extrusion structure can be detachably installed on the first mounting holes through the connecting column at the bottom.
[0011] Furthermore, mounting blocks are bent into shape on the left and right sides of the opening of the triangular battery extrusion placement slot. Several second mounting holes are opened on the mounting blocks corresponding to the first mounting holes on the lifting connecting plate. The connecting column of the extrusion seat passes through the second mounting holes and connects to the first mounting holes.
[0012] Compared to existing technologies, the advantages of this invention are as follows: By setting up a pressurizing mechanism, when compressing the battery, the battery is placed on the triangular battery compression slots of two adjacent hot pressing mechanisms. The servo motor is then activated, and its output shaft drives the transmission gear to rotate. The transmission gear, through the driven gear, drives the drive gear to rotate, which in turn drives the brake gear, thereby rotating the ball screw. The ball screw then drives the push plate to move towards the hot pressing mechanism. Under the pushing force of the push plate, the hot pressing mechanism moves along the guide rod, reducing the distance between two adjacent hot pressing mechanisms during this movement, thus compressing the battery. The push plate also moves along the pull rod during this process. Multiple pull rods and guide rods provide support during the compression process, ensuring the stability of the hot pressing mechanism's movement, resulting in smooth movement, reduced noise, and improved pressure uniformity throughout the formation machine. This improves the formation accuracy. Furthermore, before placing the battery in the triangular battery compression slot, the height and thickness can be adjusted according to the battery's dimensions. The height can be adjusted by simultaneously unlocking the first and second locking structures on both sides of the hot-pressing mechanism, driving the first and second lifting bases to move up and down, thereby moving the first pressure plate, second pressure plate, and lifting connecting plate up and down. After reaching the appropriate height, they are locked by the first and second locking structures. For the thickness, only the first locking structure needs to be unlocked, then the first and second lifting bases are driven to move up and down, thereby moving the first and second pressure plates up and down. During this up-and-down movement, the pressure plates of the first and second pressure plates move left and right due to the opposing action of the first sliding inclined surface and the second sliding inclined surface of the lifting connecting plate. After adjusting to the appropriate thickness, they are locked by the first locking structure. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 A schematic diagram of the structure of a hot pressing fixture for chemical formation provided by this utility model. Figure One ;
[0015] Figure 2 A schematic diagram of the structure of a hot pressing fixture for chemical formation provided by this utility model. Figure Two ;
[0016] Figure 3 This is a schematic diagram of the hot pressing mechanism described in this utility model. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] To illustrate the technical solution described in this utility model, specific embodiments are described below.
[0019] Example
[0020] Please see Figure 1 , Figure 2 This embodiment provides a chemical forming hot pressing fixture, including a mounting base 1, a pressurizing mechanism 2 on the mounting base 1, a side plate 4 connected to the mounting base 1 by four front and rear tie rods 3, the mounting base 1 and the side plate 4 are arranged opposite each other, four ball screws 5 are rotatably mounted between the mounting base 1 and the side plate 4, the pressurizing mechanism 2 is connected to the four ball screws 5 in a transmission connection, a heat insulation plate 6 is provided on the inner side of the side plate 4, two guide rods 7 are installed between the mounting base 1 and the heat insulation plate 6, a push plate 8 is movably mounted on the four ball screws 5 and the two guide rods 7, and a plurality of hot pressing mechanisms 9 are movably mounted on the two guide rods 7 between the push plate 8 and the heat insulation plate 6.
[0021] The pressurizing mechanism 2 includes a servo motor 21, a transmission gear 22, two driven gears 23, two driving gears 24, and four brake gears 25. The servo motor 21 is located on the outside of the mounting base 1. The transmission gear 22, the two driven gears 23, the two driving gears 24, and the four brake gears 25 are all rotatably mounted inside the mounting base 1. The motor shaft of the servo motor 21 is connected to the transmission gear 22. The two sides of the transmission gear 22 are sequentially engaged with the driven gears 23, the driving gears 24, and the two brake gears 25. One end of the ball screw 5 is connected to the brake gear 25. Working principle: When the servo motor 21 is started, the output shaft of the servo motor 21 will drive the transmission gear 22 to rotate. The transmission gear 22 will drive the drive gear 24 to rotate through the driven gear 23. The drive gear 24 will drive the brake gear 25 to rotate, thereby driving the ball screw 5 to rotate. The ball screw 5 will drive the push plate 8 to move towards the hot pressing mechanism 9. Under the pushing force of the push plate 8, the hot pressing mechanism 9 moves along the guide rod 7. During the movement, the distance between two adjacent hot pressing mechanisms 9 will be reduced, thereby squeezing the battery. During the movement of the push plate 8, it will be displaced along the pull rod 3. During the squeezing process, it is supported by multiple pull rods 3 and guide rods 7 to ensure the stability of the movement of the hot pressing mechanism 9, so that the hot pressing mechanism 9 moves smoothly, reduces noise, improves the pressure uniformity of the entire formation machine, and greatly improves the formation accuracy.
[0022] Combination Figure 3As shown, the hot pressing mechanism 9 includes a first bearing plate 901, a second bearing plate 902, a lifting connecting plate 903, several extrusion structures 904, a first lifting guide rail 905, a second lifting guide rail 906, a first lifting base 907, a second lifting base 908, a first pressure plate seat 909, and a second pressure plate seat 910. The first bearing plate 901 and the second bearing plate 902 are respectively sleeved on the two guide rods 7. The lifting connecting plate 903 is movably connected between the first bearing plate 901 and the second bearing plate 902. Several extrusion structures 904 are installed on the lifting connecting plate 903. A triangular battery extrusion placement groove 911 with an upward opening is installed between the lifting connecting plates 903 of two adjacent hot pressing mechanisms 9. When extruding the battery, the battery is placed on the triangular battery extrusion placement groove 911 of two adjacent hot pressing mechanisms 9, and then the servo motor 21 is started.The first lifting guide rail 905 and the second lifting guide rail 906 are respectively vertically installed below the first bearing plate 901 and the second bearing plate 902. The first lifting base 907 and the second lifting base 908 are respectively movably installed on the first lifting guide rail 905 and the second lifting guide rail 906. The first lifting base 907 and the second lifting base 908 are equipped with first locking structures 912 corresponding to the first lifting guide rail 905 and the second lifting guide rail 906, respectively. The first lifting base 907 and the second lifting base 908 are provided with left and right moving slide grooves 913. The first pressure plate seat 909 and the second pressure plate seat 910 are respectively movably installed. On the left and right moving slide grooves 913 of the first lifting base 907 and the second lifting base 908, the first pressure plate seat 909 and the second pressure plate seat 910 are provided with first sliding inclined surfaces 914. The front and rear sides of the lifting connecting plate 903 are provided with second sliding inclined surfaces that respectively abut against the first sliding inclined surfaces 914 of the first pressure plate seat 909 and the second pressure plate seat 910. The first lifting guide rail 905 and the second lifting guide rail 906 are equipped with second locking structures 915 corresponding to the lifting connecting plate 903. A pressure plate 916 located on one side of the lifting connecting plate 903 is installed on one side of the first pressure plate seat 909 and the second pressure plate seat 910. The triangular battery compression placement slot 911 is located between two pressure plates 916. This structural design allows the hot pressing mechanism to have height and thickness adjustment functions. Before placing the battery in the triangular battery compression placement slot 911, it can be adjusted according to the size of the battery. The height can be adjusted by simultaneously unlocking the first locking structure 912 and the second locking structure 915 on both sides of the hot pressing mechanism 916, which drives the first lifting base 907 and the second lifting base 908 to move up and down, thereby driving the first pressure plate seat 909, the second pressure plate seat 910 and the lifting connecting plate 903 to move up and down. After moving to the appropriate height, the first locking structure 912 is then used to... The first and second locking structures 912 are locked together, while the thickness is only unlocked by the first locking structure 912. Then, the first and second lifting bases 907 and 908 are driven to move up and down, thereby causing the first pressure plate 909 and second pressure plate 910 to move up and down. During the up and down movement of the first and second pressure plate 909 and 910, due to the contact between the first sliding inclined surface 914 and the second sliding inclined surface of the lifting connecting plate 903, the pressure plates 916 of the first and second pressure plate 909 and 910 move left and right. After adjusting to a suitable thickness, they are then locked together by the first locking structure 912.
[0023] The extrusion structure 904 includes an extrusion seat 9041, a first extrusion block 9042, a second extrusion block 9043, and two tension springs 9044. A plurality of first mounting holes are arranged in a row on the lifting connecting plate 903. The extrusion seat 9041 of the extrusion structure 904 is detachably mounted on the first mounting holes via a connecting post at the bottom. The extrusion structure 9041 can be installed according to the length of the battery. The first extrusion block 9042 and the second extrusion block 9043 are respectively movably disposed on the left and right sides of the extrusion seat 9041. The upper parts of the first extrusion block 9042 and the second extrusion block 9043 are respectively connected to the extrusion seat 9044. The pressure base 9041 is rotatably connected. The middle parts of the first extrusion block 9042 and the second extrusion block 9043 protrude to both sides respectively, and tension springs 9044 are respectively provided between them and the extrusion base 9041. When the battery is extruded, two adjacent batteries will touch the first extrusion block 9042 and the second extrusion block 9043 respectively. The first extrusion block 9042 and the second extrusion block 9043 are compressed inward under the action of the tension springs 9044. After the extrusion is completed, the servo motor 21 stops, and the first extrusion block 9042 and the second extrusion block 9043 spring back to their original positions under the action of the tension springs 9044.
[0024] The opening of the triangular battery extrusion placement groove 911 is bent into mounting blocks 9111 on the left and right sides respectively. The mounting blocks 9111 are provided with a number of second mounting holes 9112 corresponding to the first mounting hole on the lifting connecting plate 903. The connecting column of the extrusion seat 9041 passes through the second mounting holes 9112 and connects with the first mounting hole, thus completing the installation and fixing of the extrusion structure 904 and the triangular battery extrusion placement groove 911.
[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hot pressing fixture, characterized in that: The device includes a mounting base, on which a pressurizing mechanism is provided. The mounting base is connected to a side plate via four front and rear tie rods. The mounting base and the side plate are arranged opposite each other. Four ball screws are rotatably mounted between the mounting base and the side plate. The pressurizing mechanism is driven by the four ball screws. A heat insulation plate is provided on the inner side of the side plate. Two guide rods are installed between the mounting base and the heat insulation plate. A push plate is movably mounted on the four ball screws and the two guide rods. Several hot pressing mechanisms are movably mounted on the two guide rods between the push plate and the heat insulation plate. The hot pressing mechanism includes a first bearing plate, a second bearing plate, a lifting connecting plate, several extrusion structures, a first lifting guide rail, a second lifting guide rail, a first lifting base, a second lifting base, a first pressure plate seat, and a second pressure plate seat. The first bearing plate and the second bearing plate are respectively sleeved on two guide rods. The lifting connecting plate is movably connected vertically between the first bearing plate and the second bearing plate. The several extrusion structures are installed front and rear on the lifting connecting plate. An upward-opening triangular battery extrusion placement groove is installed between the lifting connecting plates of two adjacent hot pressing mechanisms. The first lifting guide rail and the second lifting guide rail are respectively vertically installed below the first bearing plate and the second bearing plate. The first lifting base and the second lifting base are respectively movably installed on the first lifting guide rail and the second lifting guide rail. The base and the second lifting base are equipped with first locking structures corresponding to the first and second lifting guide rails, respectively. The first and second lifting bases are provided with left and right sliding grooves. The first and second pressure plates are movably installed on the left and right sliding grooves of the first and second lifting bases, respectively. The first and second pressure plates are provided with first sliding inclined surfaces. The front and rear sides of the lifting connecting plate are provided with second sliding inclined surfaces that movably abut against the first sliding inclined surfaces of the first and second pressure plates, respectively. The first and second lifting guide rails are equipped with second locking structures corresponding to the lifting connecting plate. A pressure plate located on one side of the lifting connecting plate is installed on one side of the first and second pressure plates. The triangular battery compression placement groove is located between the two pressure plates.
2. The hot pressing fixture according to claim 1, characterized in that: The pressurizing mechanism includes a servo motor, a transmission gear, two driven gears, two driving gears, and four brake gears. The servo motor is located on the outside of the mounting base. The transmission gear, two driven gears, two driving gears, and four brake gears are all rotatably mounted inside the mounting base. The motor shaft of the servo motor is connected to the transmission gear. The two sides of the transmission gear mesh sequentially with the driven gears, driving gears, and two brake gears. One end of the ball screw is connected to the brake gear.
3. The hot pressing fixture according to claim 1, characterized in that: The extrusion structure includes an extrusion seat, a first extrusion block, a second extrusion block, and two tension springs. The extrusion seat is detachably mounted on the lifting connecting plate. The first extrusion block and the second extrusion block are respectively movably disposed on the left and right sides of the extrusion seat. The upper parts of the first extrusion block and the second extrusion block are rotatably connected to the extrusion seat. The middle parts of the first extrusion block and the second extrusion block protrude to both sides, and tension springs are respectively provided between them and the extrusion seat.
4. The hot pressing fixture according to claim 3, characterized in that: The lifting connecting plate has several first mounting holes in the same row, and the extrusion seat of the extrusion structure can be detachably installed on the first mounting holes through the connecting column at the bottom.
5. The hot pressing fixture according to claim 4, characterized in that: The opening of the triangular battery extrusion placement slot has mounting blocks bent on the left and right sides respectively. Several second mounting holes are opened on the mounting blocks corresponding to the first mounting hole on the lifting connecting plate. The connecting column of the extrusion seat passes through the second mounting holes and connects to the first mounting hole.